From e5c56b7c0f3c20ea9db2c06434fd770139e8d10f Mon Sep 17 00:00:00 2001 From: Christian Dywan Date: Wed, 7 Oct 2009 18:33:44 +0200 Subject: [PATCH] Remove GtkText completely --- gtk/gtktext.c | 5461 ------------------------------------------------- gtk/gtktext.h | 217 -- 2 files changed, 5678 deletions(-) delete mode 100644 gtk/gtktext.c delete mode 100644 gtk/gtktext.h diff --git a/gtk/gtktext.c b/gtk/gtktext.c deleted file mode 100644 index 5535d5a3b8..0000000000 --- a/gtk/gtktext.c +++ /dev/null @@ -1,5461 +0,0 @@ -/* GTK - The GIMP Toolkit - * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -/* - * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS - * file for a list of people on the GTK+ Team. See the ChangeLog - * files for a list of changes. These files are distributed with - * GTK+ at ftp://ftp.gtk.org/pub/gtk/. - */ - -#include "config.h" - -#include -#include - -#undef GDK_DISABLE_DEPRECATED - -#include "gdk/gdkkeysyms.h" -#include "gdk/gdki18n.h" - -#undef GTK_DISABLE_DEPRECATED - -#include "gtkmain.h" -#include "gtkmarshalers.h" -#include "gtkselection.h" -#include "gtksignal.h" -#include "gtkstyle.h" -#define GTK_ENABLE_BROKEN -#include "gtktext.h" -#include "line-wrap.xbm" -#include "line-arrow.xbm" -#include "gtkprivate.h" -#include "gtkintl.h" - -#include "gtkalias.h" - - -#define INITIAL_BUFFER_SIZE 1024 -#define INITIAL_LINE_CACHE_SIZE 256 -#define MIN_GAP_SIZE 256 -#define LINE_DELIM '\n' -#define MIN_TEXT_WIDTH_LINES 20 -#define MIN_TEXT_HEIGHT_LINES 10 -#define TEXT_BORDER_ROOM 1 -#define LINE_WRAP_ROOM 8 /* The bitmaps are 6 wide. */ -#define DEFAULT_TAB_STOP_WIDTH 4 -#define SCROLL_PIXELS 5 -#define KEY_SCROLL_PIXELS 10 -#define SCROLL_TIME 100 -#define FREEZE_LENGTH 1024 -/* Freeze text when inserting or deleting more than this many characters */ - -#define SET_PROPERTY_MARK(m, p, o) do { \ - (m)->property = (p); \ - (m)->offset = (o); \ - } while (0) -#define MARK_CURRENT_PROPERTY(mark) ((TextProperty*)(mark)->property->data) -#define MARK_NEXT_PROPERTY(mark) ((TextProperty*)(mark)->property->next->data) -#define MARK_PREV_PROPERTY(mark) ((TextProperty*)((mark)->property->prev ? \ - (mark)->property->prev->data \ - : NULL)) -#define MARK_PREV_LIST_PTR(mark) ((mark)->property->prev) -#define MARK_LIST_PTR(mark) ((mark)->property) -#define MARK_NEXT_LIST_PTR(mark) ((mark)->property->next) -#define MARK_OFFSET(mark) ((mark)->offset) -#define MARK_PROPERTY_LENGTH(mark) (MARK_CURRENT_PROPERTY(mark)->length) - - -#define MARK_CURRENT_FONT(text, mark) \ - ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_FONT) ? \ - MARK_CURRENT_PROPERTY(mark)->font->gdk_font : \ - gtk_style_get_font (GTK_WIDGET (text)->style)) -#define MARK_CURRENT_FORE(text, mark) \ - ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_FOREGROUND) ? \ - &MARK_CURRENT_PROPERTY(mark)->fore_color : \ - &((GtkWidget *)text)->style->text[((GtkWidget *)text)->state]) -#define MARK_CURRENT_BACK(text, mark) \ - ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_BACKGROUND) ? \ - &MARK_CURRENT_PROPERTY(mark)->back_color : \ - &((GtkWidget *)text)->style->base[((GtkWidget *)text)->state]) -#define MARK_CURRENT_TEXT_FONT(text, mark) \ - ((MARK_CURRENT_PROPERTY(mark)->flags & PROPERTY_FONT) ? \ - MARK_CURRENT_PROPERTY(mark)->font : \ - text->current_font) - -#define TEXT_LENGTH(t) ((t)->text_end - (t)->gap_size) -#define FONT_HEIGHT(f) ((f)->ascent + (f)->descent) -#define LINE_HEIGHT(l) ((l).font_ascent + (l).font_descent) -#define LINE_CONTAINS(l, i) ((l).start.index <= (i) && (l).end.index >= (i)) -#define LINE_STARTS_AT(l, i) ((l).start.index == (i)) -#define LINE_START_PIXEL(l) ((l).tab_cont.pixel_offset) -#define LAST_INDEX(t, m) ((m).index == TEXT_LENGTH(t)) -#define CACHE_DATA(c) (*(LineParams*)(c)->data) - -enum { - PROP_0, - PROP_HADJUSTMENT, - PROP_VADJUSTMENT, - PROP_LINE_WRAP, - PROP_WORD_WRAP -}; - -typedef struct _TextProperty TextProperty; -typedef struct _TabStopMark TabStopMark; -typedef struct _PrevTabCont PrevTabCont; -typedef struct _FetchLinesData FetchLinesData; -typedef struct _LineParams LineParams; -typedef struct _SetVerticalScrollData SetVerticalScrollData; - -typedef gint (*LineIteratorFunction) (GtkText* text, LineParams* lp, void* data); - -typedef enum -{ - FetchLinesPixels, - FetchLinesCount -} FLType; - -struct _SetVerticalScrollData { - gint pixel_height; - gint last_didnt_wrap; - gint last_line_start; - GtkPropertyMark mark; -}; - -struct _GtkTextFont -{ - /* The actual font. */ - GdkFont *gdk_font; - guint ref_count; - - gint16 char_widths[256]; -}; - -typedef enum { - PROPERTY_FONT = 1 << 0, - PROPERTY_FOREGROUND = 1 << 1, - PROPERTY_BACKGROUND = 1 << 2 -} TextPropertyFlags; - -struct _TextProperty -{ - /* Font. */ - GtkTextFont* font; - - /* Background Color. */ - GdkColor back_color; - - /* Foreground Color. */ - GdkColor fore_color; - - /* Show which properties are set */ - TextPropertyFlags flags; - - /* Length of this property. */ - guint length; -}; - -struct _TabStopMark -{ - GList* tab_stops; /* Index into list containing the next tab position. If - * NULL, using default widths. */ - gint to_next_tab; -}; - -struct _PrevTabCont -{ - guint pixel_offset; - TabStopMark tab_start; -}; - -struct _FetchLinesData -{ - GList* new_lines; - FLType fl_type; - gint data; - gint data_max; -}; - -struct _LineParams -{ - guint font_ascent; - guint font_descent; - guint pixel_width; - guint displayable_chars; - guint wraps : 1; - - PrevTabCont tab_cont; - PrevTabCont tab_cont_next; - - GtkPropertyMark start; - GtkPropertyMark end; -}; - - -static void gtk_text_class_init (GtkTextClass *klass); -static void gtk_text_set_property (GObject *object, - guint prop_id, - const GValue *value, - GParamSpec *pspec); -static void gtk_text_get_property (GObject *object, - guint prop_id, - GValue *value, - GParamSpec *pspec); -static void gtk_text_editable_init (GtkEditableClass *iface); -static void gtk_text_init (GtkText *text); -static void gtk_text_destroy (GtkObject *object); -static void gtk_text_finalize (GObject *object); -static void gtk_text_realize (GtkWidget *widget); -static void gtk_text_unrealize (GtkWidget *widget); -static void gtk_text_style_set (GtkWidget *widget, - GtkStyle *previous_style); -static void gtk_text_state_changed (GtkWidget *widget, - GtkStateType previous_state); -static void gtk_text_draw_focus (GtkWidget *widget); -static void gtk_text_size_request (GtkWidget *widget, - GtkRequisition *requisition); -static void gtk_text_size_allocate (GtkWidget *widget, - GtkAllocation *allocation); -static void gtk_text_adjustment (GtkAdjustment *adjustment, - GtkText *text); -static void gtk_text_insert_text (GtkEditable *editable, - const gchar *new_text, - gint new_text_length, - gint *position); -static void gtk_text_delete_text (GtkEditable *editable, - gint start_pos, - gint end_pos); -static void gtk_text_update_text (GtkOldEditable *old_editable, - gint start_pos, - gint end_pos); -static gchar *gtk_text_get_chars (GtkOldEditable *old_editable, - gint start, - gint end); -static void gtk_text_set_selection (GtkOldEditable *old_editable, - gint start, - gint end); -static void gtk_text_real_set_editable (GtkOldEditable *old_editable, - gboolean is_editable); - -static void gtk_text_adjustment_destroyed (GtkAdjustment *adjustment, - GtkText *text); - -/* Event handlers */ -static gint gtk_text_expose (GtkWidget *widget, - GdkEventExpose *event); -static gint gtk_text_button_press (GtkWidget *widget, - GdkEventButton *event); -static gint gtk_text_button_release (GtkWidget *widget, - GdkEventButton *event); -static gint gtk_text_motion_notify (GtkWidget *widget, - GdkEventMotion *event); -static gint gtk_text_key_press (GtkWidget *widget, - GdkEventKey *event); - -static void move_gap (GtkText* text, guint index); -static void make_forward_space (GtkText* text, guint len); - -/* Property management */ -static GtkTextFont* get_text_font (GdkFont* gfont); -static void text_font_unref (GtkTextFont *text_font); - -static void insert_text_property (GtkText* text, GdkFont* font, - const GdkColor *fore, const GdkColor* back, guint len); -static TextProperty* new_text_property (GtkText *text, GdkFont* font, - const GdkColor* fore, const GdkColor* back, guint length); -static void destroy_text_property (TextProperty *prop); -static void init_properties (GtkText *text); -static void realize_property (GtkText *text, TextProperty *prop); -static void realize_properties (GtkText *text); -static void unrealize_property (GtkText *text, TextProperty *prop); -static void unrealize_properties (GtkText *text); - -static void delete_text_property (GtkText* text, guint len); - -static guint pixel_height_of (GtkText* text, GList* cache_line); - -/* Property Movement and Size Computations */ -static void advance_mark (GtkPropertyMark* mark); -static void decrement_mark (GtkPropertyMark* mark); -static void advance_mark_n (GtkPropertyMark* mark, gint n); -static void decrement_mark_n (GtkPropertyMark* mark, gint n); -static void move_mark_n (GtkPropertyMark* mark, gint n); -static GtkPropertyMark find_mark (GtkText* text, guint mark_position); -static GtkPropertyMark find_mark_near (GtkText* text, guint mark_position, const GtkPropertyMark* near); -static void find_line_containing_point (GtkText* text, guint point, - gboolean scroll); - -/* Display */ -static void compute_lines_pixels (GtkText* text, guint char_count, - guint *lines, guint *pixels); - -static gint total_line_height (GtkText* text, - GList* line, - gint line_count); -static LineParams find_line_params (GtkText* text, - const GtkPropertyMark *mark, - const PrevTabCont *tab_cont, - PrevTabCont *next_cont); -static void recompute_geometry (GtkText* text); -static void insert_expose (GtkText* text, guint old_pixels, gint nchars, guint new_line_count); -static void delete_expose (GtkText* text, - guint nchars, - guint old_lines, - guint old_pixels); -static GdkGC *create_bg_gc (GtkText *text); -static void clear_area (GtkText *text, GdkRectangle *area); -static void draw_line (GtkText* text, - gint pixel_height, - LineParams* lp); -static void draw_line_wrap (GtkText* text, - guint height); -static void draw_cursor (GtkText* text, gint absolute); -static void undraw_cursor (GtkText* text, gint absolute); -static gint drawn_cursor_min (GtkText* text); -static gint drawn_cursor_max (GtkText* text); -static void expose_text (GtkText* text, GdkRectangle *area, gboolean cursor); - -/* Search and Placement. */ -static void find_cursor (GtkText* text, - gboolean scroll); -static void find_cursor_at_line (GtkText* text, - const LineParams* start_line, - gint pixel_height); -static void find_mouse_cursor (GtkText* text, gint x, gint y); - -/* Scrolling. */ -static void adjust_adj (GtkText* text, GtkAdjustment* adj); -static void scroll_up (GtkText* text, gint diff); -static void scroll_down (GtkText* text, gint diff); -static void scroll_int (GtkText* text, gint diff); - -static void process_exposes (GtkText *text); - -/* Cache Management. */ -static void free_cache (GtkText* text); -static GList* remove_cache_line (GtkText* text, GList* list); - -/* Key Motion. */ -static void move_cursor_buffer_ver (GtkText *text, int dir); -static void move_cursor_page_ver (GtkText *text, int dir); -static void move_cursor_ver (GtkText *text, int count); -static void move_cursor_hor (GtkText *text, int count); - -/* Binding actions */ -static void gtk_text_move_cursor (GtkOldEditable *old_editable, - gint x, - gint y); -static void gtk_text_move_word (GtkOldEditable *old_editable, - gint n); -static void gtk_text_move_page (GtkOldEditable *old_editable, - gint x, - gint y); -static void gtk_text_move_to_row (GtkOldEditable *old_editable, - gint row); -static void gtk_text_move_to_column (GtkOldEditable *old_editable, - gint row); -static void gtk_text_kill_char (GtkOldEditable *old_editable, - gint direction); -static void gtk_text_kill_word (GtkOldEditable *old_editable, - gint direction); -static void gtk_text_kill_line (GtkOldEditable *old_editable, - gint direction); - -/* To be removed */ -static void gtk_text_move_forward_character (GtkText *text); -static void gtk_text_move_backward_character (GtkText *text); -static void gtk_text_move_forward_word (GtkText *text); -static void gtk_text_move_backward_word (GtkText *text); -static void gtk_text_move_beginning_of_line (GtkText *text); -static void gtk_text_move_end_of_line (GtkText *text); -static void gtk_text_move_next_line (GtkText *text); -static void gtk_text_move_previous_line (GtkText *text); - -static void gtk_text_delete_forward_character (GtkText *text); -static void gtk_text_delete_backward_character (GtkText *text); -static void gtk_text_delete_forward_word (GtkText *text); -static void gtk_text_delete_backward_word (GtkText *text); -static void gtk_text_delete_line (GtkText *text); -static void gtk_text_delete_to_line_end (GtkText *text); -static void gtk_text_select_word (GtkText *text, - guint32 time); -static void gtk_text_select_line (GtkText *text, - guint32 time); - -static void gtk_text_set_position (GtkOldEditable *old_editable, - gint position); - -/* #define DEBUG_GTK_TEXT */ - -#if defined(DEBUG_GTK_TEXT) && defined(__GNUC__) -/* Debugging utilities. */ -static void gtk_text_assert_mark (GtkText *text, - GtkPropertyMark *mark, - GtkPropertyMark *before, - GtkPropertyMark *after, - const gchar *msg, - const gchar *where, - gint line); - -static void gtk_text_assert (GtkText *text, - const gchar *msg, - gint line); -static void gtk_text_show_cache_line (GtkText *text, GList *cache, - const char* what, const char* func, gint line); -static void gtk_text_show_cache (GtkText *text, const char* func, gint line); -static void gtk_text_show_adj (GtkText *text, - GtkAdjustment *adj, - const char* what, - const char* func, - gint line); -static void gtk_text_show_props (GtkText* test, - const char* func, - int line); - -#define TDEBUG(args) g_message args -#define TEXT_ASSERT(text) gtk_text_assert (text,__PRETTY_FUNCTION__,__LINE__) -#define TEXT_ASSERT_MARK(text,mark,msg) gtk_text_assert_mark (text,mark, \ - __PRETTY_FUNCTION__,msg,__LINE__) -#define TEXT_SHOW(text) gtk_text_show_cache (text, __PRETTY_FUNCTION__,__LINE__) -#define TEXT_SHOW_LINE(text,line,msg) gtk_text_show_cache_line (text,line,msg,\ - __PRETTY_FUNCTION__,__LINE__) -#define TEXT_SHOW_ADJ(text,adj,msg) gtk_text_show_adj (text,adj,msg, \ - __PRETTY_FUNCTION__,__LINE__) -#else -#define TDEBUG(args) -#define TEXT_ASSERT(text) -#define TEXT_ASSERT_MARK(text,mark,msg) -#define TEXT_SHOW(text) -#define TEXT_SHOW_LINE(text,line,msg) -#define TEXT_SHOW_ADJ(text,adj,msg) -#endif - -static GtkWidgetClass *parent_class = NULL; - -/**********************************************************************/ -/* Widget Crap */ -/**********************************************************************/ - -GtkType -gtk_text_get_type (void) -{ - static GtkType text_type = 0; - - if (!text_type) - { - static const GtkTypeInfo text_info = - { - "GtkText", - sizeof (GtkText), - sizeof (GtkTextClass), - (GtkClassInitFunc) gtk_text_class_init, - (GtkObjectInitFunc) gtk_text_init, - /* reserved_1 */ NULL, - /* reserved_2 */ NULL, - (GtkClassInitFunc) NULL, - }; - - const GInterfaceInfo editable_info = - { - (GInterfaceInitFunc) gtk_text_editable_init, /* interface_init */ - NULL, /* interface_finalize */ - NULL /* interface_data */ - }; - - I_("GtkText"); - text_type = gtk_type_unique (GTK_TYPE_OLD_EDITABLE, &text_info); - g_type_add_interface_static (text_type, - GTK_TYPE_EDITABLE, - &editable_info); - } - - return text_type; -} - -static void -gtk_text_class_init (GtkTextClass *class) -{ - GObjectClass *gobject_class; - GtkObjectClass *object_class; - GtkWidgetClass *widget_class; - GtkOldEditableClass *old_editable_class; - - gobject_class = G_OBJECT_CLASS (class); - object_class = (GtkObjectClass*) class; - widget_class = (GtkWidgetClass*) class; - old_editable_class = (GtkOldEditableClass*) class; - parent_class = gtk_type_class (GTK_TYPE_OLD_EDITABLE); - - gobject_class->finalize = gtk_text_finalize; - gobject_class->set_property = gtk_text_set_property; - gobject_class->get_property = gtk_text_get_property; - - object_class->destroy = gtk_text_destroy; - - widget_class->realize = gtk_text_realize; - widget_class->unrealize = gtk_text_unrealize; - widget_class->style_set = gtk_text_style_set; - widget_class->state_changed = gtk_text_state_changed; - widget_class->size_request = gtk_text_size_request; - widget_class->size_allocate = gtk_text_size_allocate; - widget_class->expose_event = gtk_text_expose; - widget_class->button_press_event = gtk_text_button_press; - widget_class->button_release_event = gtk_text_button_release; - widget_class->motion_notify_event = gtk_text_motion_notify; - widget_class->key_press_event = gtk_text_key_press; - - old_editable_class->set_editable = gtk_text_real_set_editable; - - old_editable_class->move_cursor = gtk_text_move_cursor; - old_editable_class->move_word = gtk_text_move_word; - old_editable_class->move_page = gtk_text_move_page; - old_editable_class->move_to_row = gtk_text_move_to_row; - old_editable_class->move_to_column = gtk_text_move_to_column; - - old_editable_class->kill_char = gtk_text_kill_char; - old_editable_class->kill_word = gtk_text_kill_word; - old_editable_class->kill_line = gtk_text_kill_line; - - old_editable_class->update_text = gtk_text_update_text; - old_editable_class->get_chars = gtk_text_get_chars; - old_editable_class->set_selection = gtk_text_set_selection; - old_editable_class->set_position = gtk_text_set_position; - - class->set_scroll_adjustments = gtk_text_set_adjustments; - - g_object_class_install_property (gobject_class, - PROP_HADJUSTMENT, - g_param_spec_object ("hadjustment", - P_("Horizontal Adjustment"), - P_("Horizontal adjustment for the text widget"), - GTK_TYPE_ADJUSTMENT, - GTK_PARAM_READWRITE)); - - g_object_class_install_property (gobject_class, - PROP_VADJUSTMENT, - g_param_spec_object ("vadjustment", - P_("Vertical Adjustment"), - P_("Vertical adjustment for the text widget"), - GTK_TYPE_ADJUSTMENT, - GTK_PARAM_READWRITE)); - - g_object_class_install_property (gobject_class, - PROP_LINE_WRAP, - g_param_spec_boolean ("line-wrap", - P_("Line Wrap"), - P_("Whether lines are wrapped at widget edges"), - TRUE, - GTK_PARAM_READWRITE)); - - g_object_class_install_property (gobject_class, - PROP_WORD_WRAP, - g_param_spec_boolean ("word-wrap", - P_("Word Wrap"), - P_("Whether words are wrapped at widget edges"), - FALSE, - GTK_PARAM_READWRITE)); - - widget_class->set_scroll_adjustments_signal = - gtk_signal_new (I_("set-scroll-adjustments"), - GTK_RUN_LAST, - GTK_CLASS_TYPE (object_class), - GTK_SIGNAL_OFFSET (GtkTextClass, set_scroll_adjustments), - _gtk_marshal_VOID__OBJECT_OBJECT, - GTK_TYPE_NONE, 2, GTK_TYPE_ADJUSTMENT, GTK_TYPE_ADJUSTMENT); -} - -static void -gtk_text_set_property (GObject *object, - guint prop_id, - const GValue *value, - GParamSpec *pspec) -{ - GtkText *text; - - text = GTK_TEXT (object); - - switch (prop_id) - { - case PROP_HADJUSTMENT: - gtk_text_set_adjustments (text, - g_value_get_object (value), - text->vadj); - break; - case PROP_VADJUSTMENT: - gtk_text_set_adjustments (text, - text->hadj, - g_value_get_object (value)); - break; - case PROP_LINE_WRAP: - gtk_text_set_line_wrap (text, g_value_get_boolean (value)); - break; - case PROP_WORD_WRAP: - gtk_text_set_word_wrap (text, g_value_get_boolean (value)); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static void -gtk_text_get_property (GObject *object, - guint prop_id, - GValue *value, - GParamSpec *pspec) -{ - GtkText *text; - - text = GTK_TEXT (object); - - switch (prop_id) - { - case PROP_HADJUSTMENT: - g_value_set_object (value, text->hadj); - break; - case PROP_VADJUSTMENT: - g_value_set_object (value, text->vadj); - break; - case PROP_LINE_WRAP: - g_value_set_boolean (value, text->line_wrap); - break; - case PROP_WORD_WRAP: - g_value_set_boolean (value, text->word_wrap); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static void -gtk_text_editable_init (GtkEditableClass *iface) -{ - iface->insert_text = gtk_text_insert_text; - iface->delete_text = gtk_text_delete_text; -} - -static void -gtk_text_init (GtkText *text) -{ - gtk_widget_set_can_focus (GTK_WIDGET (text), TRUE); - - text->text_area = NULL; - text->hadj = NULL; - text->vadj = NULL; - text->gc = NULL; - text->bg_gc = NULL; - text->line_wrap_bitmap = NULL; - text->line_arrow_bitmap = NULL; - - text->use_wchar = FALSE; - text->text.ch = g_new (guchar, INITIAL_BUFFER_SIZE); - text->text_len = INITIAL_BUFFER_SIZE; - - text->scratch_buffer.ch = NULL; - text->scratch_buffer_len = 0; - - text->freeze_count = 0; - - text->default_tab_width = 4; - text->tab_stops = NULL; - - text->tab_stops = g_list_prepend (text->tab_stops, (void*)8); - text->tab_stops = g_list_prepend (text->tab_stops, (void*)8); - - text->line_start_cache = NULL; - text->first_cut_pixels = 0; - - text->line_wrap = TRUE; - text->word_wrap = FALSE; - - text->timer = 0; - text->button = 0; - - text->current_font = NULL; - - init_properties (text); - - GTK_OLD_EDITABLE (text)->editable = FALSE; - - gtk_text_set_adjustments (text, NULL, NULL); - gtk_editable_set_position (GTK_EDITABLE (text), 0); -} - -GtkWidget* -gtk_text_new (GtkAdjustment *hadj, - GtkAdjustment *vadj) -{ - GtkWidget *text; - - if (hadj) - g_return_val_if_fail (GTK_IS_ADJUSTMENT (hadj), NULL); - if (vadj) - g_return_val_if_fail (GTK_IS_ADJUSTMENT (vadj), NULL); - - text = g_object_new (GTK_TYPE_TEXT, - "hadjustment", hadj, - "vadjustment", vadj, - NULL); - - return text; -} - -void -gtk_text_set_word_wrap (GtkText *text, - gboolean word_wrap) -{ - g_return_if_fail (GTK_IS_TEXT (text)); - - text->word_wrap = (word_wrap != FALSE); - - if (gtk_widget_get_realized (GTK_WIDGET (text))) - { - recompute_geometry (text); - gtk_widget_queue_draw (GTK_WIDGET (text)); - } - - g_object_notify (G_OBJECT (text), "word-wrap"); -} - -void -gtk_text_set_line_wrap (GtkText *text, - gboolean line_wrap) -{ - g_return_if_fail (GTK_IS_TEXT (text)); - - text->line_wrap = (line_wrap != FALSE); - - if (gtk_widget_get_realized (GTK_WIDGET (text))) - { - recompute_geometry (text); - gtk_widget_queue_draw (GTK_WIDGET (text)); - } - - g_object_notify (G_OBJECT (text), "line-wrap"); -} - -void -gtk_text_set_editable (GtkText *text, - gboolean is_editable) -{ - g_return_if_fail (GTK_IS_TEXT (text)); - - gtk_editable_set_editable (GTK_EDITABLE (text), is_editable); -} - -static void -gtk_text_real_set_editable (GtkOldEditable *old_editable, - gboolean is_editable) -{ - GtkText *text; - - g_return_if_fail (GTK_IS_TEXT (old_editable)); - - text = GTK_TEXT (old_editable); - - old_editable->editable = (is_editable != FALSE); - - if (is_editable) - draw_cursor (text, TRUE); - else - undraw_cursor (text, TRUE); -} - -void -gtk_text_set_adjustments (GtkText *text, - GtkAdjustment *hadj, - GtkAdjustment *vadj) -{ - g_return_if_fail (GTK_IS_TEXT (text)); - if (hadj) - g_return_if_fail (GTK_IS_ADJUSTMENT (hadj)); - else - hadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0)); - if (vadj) - g_return_if_fail (GTK_IS_ADJUSTMENT (vadj)); - else - vadj = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0)); - - if (text->hadj && (text->hadj != hadj)) - { - gtk_signal_disconnect_by_data (GTK_OBJECT (text->hadj), text); - g_object_unref (text->hadj); - } - - if (text->vadj && (text->vadj != vadj)) - { - gtk_signal_disconnect_by_data (GTK_OBJECT (text->vadj), text); - g_object_unref (text->vadj); - } - - g_object_freeze_notify (G_OBJECT (text)); - if (text->hadj != hadj) - { - text->hadj = hadj; - g_object_ref_sink (text->hadj); - - gtk_signal_connect (GTK_OBJECT (text->hadj), "changed", - G_CALLBACK (gtk_text_adjustment), - text); - gtk_signal_connect (GTK_OBJECT (text->hadj), "value-changed", - G_CALLBACK (gtk_text_adjustment), - text); - gtk_signal_connect (GTK_OBJECT (text->hadj), "destroy", - G_CALLBACK (gtk_text_adjustment_destroyed), - text); - gtk_text_adjustment (hadj, text); - - g_object_notify (G_OBJECT (text), "hadjustment"); - } - - if (text->vadj != vadj) - { - text->vadj = vadj; - g_object_ref_sink (text->vadj); - - gtk_signal_connect (GTK_OBJECT (text->vadj), "changed", - G_CALLBACK (gtk_text_adjustment), - text); - gtk_signal_connect (GTK_OBJECT (text->vadj), "value-changed", - G_CALLBACK (gtk_text_adjustment), - text); - gtk_signal_connect (GTK_OBJECT (text->vadj), "destroy", - G_CALLBACK (gtk_text_adjustment_destroyed), - text); - gtk_text_adjustment (vadj, text); - - g_object_notify (G_OBJECT (text), "vadjustment"); - } - g_object_thaw_notify (G_OBJECT (text)); -} - -void -gtk_text_set_point (GtkText *text, - guint index) -{ - g_return_if_fail (GTK_IS_TEXT (text)); - g_return_if_fail (index <= TEXT_LENGTH (text)); - - text->point = find_mark (text, index); -} - -guint -gtk_text_get_point (GtkText *text) -{ - g_return_val_if_fail (GTK_IS_TEXT (text), 0); - - return text->point.index; -} - -guint -gtk_text_get_length (GtkText *text) -{ - g_return_val_if_fail (GTK_IS_TEXT (text), 0); - - return TEXT_LENGTH (text); -} - -void -gtk_text_freeze (GtkText *text) -{ - g_return_if_fail (GTK_IS_TEXT (text)); - - text->freeze_count++; -} - -void -gtk_text_thaw (GtkText *text) -{ - g_return_if_fail (GTK_IS_TEXT (text)); - - if (text->freeze_count) - if (!(--text->freeze_count) && gtk_widget_get_realized (GTK_WIDGET (text))) - { - recompute_geometry (text); - gtk_widget_queue_draw (GTK_WIDGET (text)); - } -} - -void -gtk_text_insert (GtkText *text, - GdkFont *font, - const GdkColor *fore, - const GdkColor *back, - const char *chars, - gint nchars) -{ - GtkOldEditable *old_editable = GTK_OLD_EDITABLE (text); - gboolean frozen = FALSE; - - gint new_line_count = 1; - guint old_height = 0; - guint length; - guint i; - gint numwcs; - - g_return_if_fail (GTK_IS_TEXT (text)); - - if (nchars < 0) - length = strlen (chars); - else - length = nchars; - - if (length == 0) - return; - - if (!text->freeze_count && (length > FREEZE_LENGTH)) - { - gtk_text_freeze (text); - frozen = TRUE; - } - - if (!text->freeze_count && (text->line_start_cache != NULL)) - { - find_line_containing_point (text, text->point.index, TRUE); - old_height = total_line_height (text, text->current_line, 1); - } - - if ((TEXT_LENGTH (text) == 0) && (text->use_wchar == FALSE)) - { - GtkWidget *widget = GTK_WIDGET (text); - - gtk_widget_ensure_style (widget); - if ((widget->style) && - (gtk_style_get_font (widget->style)->type == GDK_FONT_FONTSET)) - { - text->use_wchar = TRUE; - g_free (text->text.ch); - text->text.wc = g_new (GdkWChar, INITIAL_BUFFER_SIZE); - text->text_len = INITIAL_BUFFER_SIZE; - g_free (text->scratch_buffer.ch); - text->scratch_buffer.wc = NULL; - text->scratch_buffer_len = 0; - } - } - - move_gap (text, text->point.index); - make_forward_space (text, length); - - if (text->use_wchar) - { - char *chars_nt = (char *)chars; - if (nchars > 0) - { - chars_nt = g_new (char, length+1); - memcpy (chars_nt, chars, length); - chars_nt[length] = 0; - } - numwcs = gdk_mbstowcs (text->text.wc + text->gap_position, chars_nt, - length); - if (chars_nt != chars) - g_free(chars_nt); - if (numwcs < 0) - numwcs = 0; - } - else - { - numwcs = length; - memcpy(text->text.ch + text->gap_position, chars, length); - } - - if (!text->freeze_count && (text->line_start_cache != NULL)) - { - if (text->use_wchar) - { - for (i=0; itext.wc[text->gap_position + i] == '\n') - new_line_count++; - } - else - { - for (i=0; itext.ch[text->gap_position + i] == '\n') - new_line_count++; - } - } - - if (numwcs > 0) - { - insert_text_property (text, font, fore, back, numwcs); - - text->gap_size -= numwcs; - text->gap_position += numwcs; - - if (text->point.index < text->first_line_start_index) - text->first_line_start_index += numwcs; - if (text->point.index < old_editable->selection_start_pos) - old_editable->selection_start_pos += numwcs; - if (text->point.index < old_editable->selection_end_pos) - old_editable->selection_end_pos += numwcs; - /* We'll reset the cursor later anyways if we aren't frozen */ - if (text->point.index < text->cursor_mark.index) - text->cursor_mark.index += numwcs; - - advance_mark_n (&text->point, numwcs); - - if (!text->freeze_count && (text->line_start_cache != NULL)) - insert_expose (text, old_height, numwcs, new_line_count); - } - - if (frozen) - gtk_text_thaw (text); -} - -gboolean -gtk_text_backward_delete (GtkText *text, - guint nchars) -{ - g_return_val_if_fail (GTK_IS_TEXT (text), FALSE); - - if (nchars > text->point.index || nchars <= 0) - return FALSE; - - gtk_text_set_point (text, text->point.index - nchars); - - return gtk_text_forward_delete (text, nchars); -} - -gboolean -gtk_text_forward_delete (GtkText *text, - guint nchars) -{ - guint old_lines = 0, old_height = 0; - GtkOldEditable *old_editable = GTK_OLD_EDITABLE (text); - gboolean frozen = FALSE; - - g_return_val_if_fail (GTK_IS_TEXT (text), FALSE); - - if (text->point.index + nchars > TEXT_LENGTH (text) || nchars <= 0) - return FALSE; - - if (!text->freeze_count && nchars > FREEZE_LENGTH) - { - gtk_text_freeze (text); - frozen = TRUE; - } - - if (!text->freeze_count && text->line_start_cache != NULL) - { - /* We need to undraw the cursor here, since we may later - * delete the cursor's property - */ - undraw_cursor (text, FALSE); - find_line_containing_point (text, text->point.index, TRUE); - compute_lines_pixels (text, nchars, &old_lines, &old_height); - } - - /* FIXME, or resizing after deleting will be odd */ - if (text->point.index < text->first_line_start_index) - { - if (text->point.index + nchars >= text->first_line_start_index) - { - text->first_line_start_index = text->point.index; - while ((text->first_line_start_index > 0) && - (GTK_TEXT_INDEX (text, text->first_line_start_index - 1) - != LINE_DELIM)) - text->first_line_start_index -= 1; - - } - else - text->first_line_start_index -= nchars; - } - - if (text->point.index < old_editable->selection_start_pos) - old_editable->selection_start_pos -= - MIN(nchars, old_editable->selection_start_pos - text->point.index); - if (text->point.index < old_editable->selection_end_pos) - old_editable->selection_end_pos -= - MIN(nchars, old_editable->selection_end_pos - text->point.index); - /* We'll reset the cursor later anyways if we aren't frozen */ - if (text->point.index < text->cursor_mark.index) - move_mark_n (&text->cursor_mark, - -MIN(nchars, text->cursor_mark.index - text->point.index)); - - move_gap (text, text->point.index); - - text->gap_size += nchars; - - delete_text_property (text, nchars); - - if (!text->freeze_count && (text->line_start_cache != NULL)) - { - delete_expose (text, nchars, old_lines, old_height); - draw_cursor (text, FALSE); - } - - if (frozen) - gtk_text_thaw (text); - - return TRUE; -} - -static void -gtk_text_set_position (GtkOldEditable *old_editable, - gint position) -{ - GtkText *text = (GtkText *) old_editable; - - if (position < 0) - position = gtk_text_get_length (text); - - undraw_cursor (text, FALSE); - text->cursor_mark = find_mark (text, position); - find_cursor (text, TRUE); - draw_cursor (text, FALSE); - gtk_editable_select_region (GTK_EDITABLE (old_editable), 0, 0); -} - -static gchar * -gtk_text_get_chars (GtkOldEditable *old_editable, - gint start_pos, - gint end_pos) -{ - GtkText *text; - - gchar *retval; - - g_return_val_if_fail (GTK_IS_TEXT (old_editable), NULL); - text = GTK_TEXT (old_editable); - - if (end_pos < 0) - end_pos = TEXT_LENGTH (text); - - if ((start_pos < 0) || - (end_pos > TEXT_LENGTH (text)) || - (end_pos < start_pos)) - return NULL; - - move_gap (text, TEXT_LENGTH (text)); - make_forward_space (text, 1); - - if (text->use_wchar) - { - GdkWChar ch; - ch = text->text.wc[end_pos]; - text->text.wc[end_pos] = 0; - retval = gdk_wcstombs (text->text.wc + start_pos); - text->text.wc[end_pos] = ch; - } - else - { - guchar ch; - ch = text->text.ch[end_pos]; - text->text.ch[end_pos] = 0; - retval = g_strdup ((gchar *)(text->text.ch + start_pos)); - text->text.ch[end_pos] = ch; - } - - return retval; -} - - -static void -gtk_text_destroy (GtkObject *object) -{ - GtkText *text = GTK_TEXT (object); - - if (text->hadj) - { - gtk_signal_disconnect_by_data (GTK_OBJECT (text->hadj), text); - g_object_unref (text->hadj); - text->hadj = NULL; - } - if (text->vadj) - { - gtk_signal_disconnect_by_data (GTK_OBJECT (text->vadj), text); - g_object_unref (text->vadj); - text->vadj = NULL; - } - - if (text->timer) - { - g_source_remove (text->timer); - text->timer = 0; - } - - GTK_OBJECT_CLASS(parent_class)->destroy (object); -} - -static void -gtk_text_finalize (GObject *object) -{ - GtkText *text = GTK_TEXT (object); - GList *tmp_list; - - /* Clean up the internal structures */ - if (text->use_wchar) - g_free (text->text.wc); - else - g_free (text->text.ch); - - tmp_list = text->text_properties; - while (tmp_list) - { - destroy_text_property (tmp_list->data); - tmp_list = tmp_list->next; - } - - if (text->current_font) - text_font_unref (text->current_font); - - g_list_free (text->text_properties); - - if (text->use_wchar) - { - g_free (text->scratch_buffer.wc); - } - else - { - g_free (text->scratch_buffer.ch); - } - - g_list_free (text->tab_stops); - - G_OBJECT_CLASS (parent_class)->finalize (object); -} - -static void -gtk_text_realize (GtkWidget *widget) -{ - GtkText *text = GTK_TEXT (widget); - GtkOldEditable *old_editable = GTK_OLD_EDITABLE (widget); - GdkWindowAttr attributes; - gint attributes_mask; - - gtk_widget_set_realized (widget, TRUE); - - attributes.window_type = GDK_WINDOW_CHILD; - attributes.x = widget->allocation.x; - attributes.y = widget->allocation.y; - attributes.width = widget->allocation.width; - attributes.height = widget->allocation.height; - attributes.wclass = GDK_INPUT_OUTPUT; - attributes.visual = gtk_widget_get_visual (widget); - attributes.colormap = gtk_widget_get_colormap (widget); - attributes.event_mask = gtk_widget_get_events (widget); - attributes.event_mask |= (GDK_EXPOSURE_MASK | - GDK_BUTTON_PRESS_MASK | - GDK_BUTTON_RELEASE_MASK | - GDK_BUTTON_MOTION_MASK | - GDK_ENTER_NOTIFY_MASK | - GDK_LEAVE_NOTIFY_MASK | - GDK_KEY_PRESS_MASK); - attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP; - - widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask); - gdk_window_set_user_data (widget->window, text); - - attributes.x = (widget->style->xthickness + TEXT_BORDER_ROOM); - attributes.y = (widget->style->ythickness + TEXT_BORDER_ROOM); - attributes.width = MAX (1, (gint)widget->allocation.width - (gint)attributes.x * 2); - attributes.height = MAX (1, (gint)widget->allocation.height - (gint)attributes.y * 2); - - attributes.cursor = gdk_cursor_new_for_display (gtk_widget_get_display (widget), GDK_XTERM); - attributes_mask |= GDK_WA_CURSOR; - - text->text_area = gdk_window_new (widget->window, &attributes, attributes_mask); - gdk_window_set_user_data (text->text_area, text); - - gdk_cursor_unref (attributes.cursor); /* The X server will keep it around as long as necessary */ - - widget->style = gtk_style_attach (widget->style, widget->window); - - /* Can't call gtk_style_set_background here because it's handled specially */ - gdk_window_set_background (widget->window, &widget->style->base[gtk_widget_get_state (widget)]); - gdk_window_set_background (text->text_area, &widget->style->base[gtk_widget_get_state (widget)]); - - if (widget->style->bg_pixmap[GTK_STATE_NORMAL]) - text->bg_gc = create_bg_gc (text); - - text->line_wrap_bitmap = gdk_bitmap_create_from_data (text->text_area, - (gchar*) line_wrap_bits, - line_wrap_width, - line_wrap_height); - - text->line_arrow_bitmap = gdk_bitmap_create_from_data (text->text_area, - (gchar*) line_arrow_bits, - line_arrow_width, - line_arrow_height); - - text->gc = gdk_gc_new (text->text_area); - gdk_gc_set_exposures (text->gc, TRUE); - gdk_gc_set_foreground (text->gc, &widget->style->text[GTK_STATE_NORMAL]); - - realize_properties (text); - gdk_window_show (text->text_area); - init_properties (text); - - if (old_editable->selection_start_pos != old_editable->selection_end_pos) - gtk_old_editable_claim_selection (old_editable, TRUE, GDK_CURRENT_TIME); - - recompute_geometry (text); -} - -static void -gtk_text_style_set (GtkWidget *widget, - GtkStyle *previous_style) -{ - GtkText *text = GTK_TEXT (widget); - - if (gtk_widget_get_realized (widget)) - { - gdk_window_set_background (widget->window, &widget->style->base[gtk_widget_get_state (widget)]); - gdk_window_set_background (text->text_area, &widget->style->base[gtk_widget_get_state (widget)]); - - if (text->bg_gc) - { - g_object_unref (text->bg_gc); - text->bg_gc = NULL; - } - - if (widget->style->bg_pixmap[GTK_STATE_NORMAL]) - text->bg_gc = create_bg_gc (text); - - recompute_geometry (text); - } - - if (text->current_font) - text_font_unref (text->current_font); - text->current_font = get_text_font (gtk_style_get_font (widget->style)); -} - -static void -gtk_text_state_changed (GtkWidget *widget, - GtkStateType previous_state) -{ - GtkText *text = GTK_TEXT (widget); - - if (gtk_widget_get_realized (widget)) - { - gdk_window_set_background (widget->window, &widget->style->base[gtk_widget_get_state (widget)]); - gdk_window_set_background (text->text_area, &widget->style->base[gtk_widget_get_state (widget)]); - } -} - -static void -gtk_text_unrealize (GtkWidget *widget) -{ - GtkText *text = GTK_TEXT (widget); - - gdk_window_set_user_data (text->text_area, NULL); - gdk_window_destroy (text->text_area); - text->text_area = NULL; - - g_object_unref (text->gc); - text->gc = NULL; - - if (text->bg_gc) - { - g_object_unref (text->bg_gc); - text->bg_gc = NULL; - } - - g_object_unref (text->line_wrap_bitmap); - g_object_unref (text->line_arrow_bitmap); - - unrealize_properties (text); - - free_cache (text); - - GTK_WIDGET_CLASS (parent_class)->unrealize (widget); -} - -static void -clear_focus_area (GtkText *text, gint area_x, gint area_y, gint area_width, gint area_height) -{ - GtkWidget *widget = GTK_WIDGET (text); - GdkGC *gc; - - gint ythick = TEXT_BORDER_ROOM + widget->style->ythickness; - gint xthick = TEXT_BORDER_ROOM + widget->style->xthickness; - - gint width, height; - - if (area_width == 0 || area_height == 0) - return; - - if (widget->style->bg_pixmap[GTK_STATE_NORMAL]) - { - gdk_drawable_get_size (widget->style->bg_pixmap[GTK_STATE_NORMAL], &width, &height); - - gdk_gc_set_ts_origin (text->bg_gc, - (- text->first_onscreen_hor_pixel + xthick) % width, - (- text->first_onscreen_ver_pixel + ythick) % height); - - gc = text->bg_gc; - } - else - gc = widget->style->base_gc[widget->state]; - - gdk_draw_rectangle (GTK_WIDGET (text)->window, gc, TRUE, - area_x, area_y, area_width, area_height); -} - -static void -gtk_text_draw_focus (GtkWidget *widget) -{ - GtkText *text; - gint width, height; - gint x, y; - - g_return_if_fail (GTK_IS_TEXT (widget)); - - text = GTK_TEXT (widget); - - if (GTK_WIDGET_DRAWABLE (widget)) - { - gint ythick = widget->style->ythickness; - gint xthick = widget->style->xthickness; - gint xextra = TEXT_BORDER_ROOM; - gint yextra = TEXT_BORDER_ROOM; - - TDEBUG (("in gtk_text_draw_focus\n")); - - x = 0; - y = 0; - width = widget->allocation.width; - height = widget->allocation.height; - - if (gtk_widget_has_focus (widget)) - { - x += 1; - y += 1; - width -= 2; - height -= 2; - xextra -= 1; - yextra -= 1; - - gtk_paint_focus (widget->style, widget->window, gtk_widget_get_state (widget), - NULL, widget, "text", - 0, 0, - widget->allocation.width, - widget->allocation.height); - } - - gtk_paint_shadow (widget->style, widget->window, - GTK_STATE_NORMAL, GTK_SHADOW_IN, - NULL, widget, "text", - x, y, width, height); - - x += xthick; - y += ythick; - width -= 2 * xthick; - height -= 2 * ythick; - - /* top rect */ - clear_focus_area (text, x, y, width, yextra); - /* left rect */ - clear_focus_area (text, x, y + yextra, - xextra, y + height - 2 * yextra); - /* right rect */ - clear_focus_area (text, x + width - xextra, y + yextra, - xextra, height - 2 * ythick); - /* bottom rect */ - clear_focus_area (text, x, x + height - yextra, width, yextra); - } - else - { - TDEBUG (("in gtk_text_draw_focus (undrawable !!!)\n")); - } -} - -static void -gtk_text_size_request (GtkWidget *widget, - GtkRequisition *requisition) -{ - GdkFont *font; - gint xthickness; - gint ythickness; - gint char_height; - gint char_width; - - xthickness = widget->style->xthickness + TEXT_BORDER_ROOM; - ythickness = widget->style->ythickness + TEXT_BORDER_ROOM; - - font = gtk_style_get_font (widget->style); - - char_height = MIN_TEXT_HEIGHT_LINES * (font->ascent + - font->descent); - - char_width = MIN_TEXT_WIDTH_LINES * (gdk_text_width (font, - "ABCDEFGHIJKLMNOPQRSTUVWXYZ", - 26) - / 26); - - requisition->width = char_width + xthickness * 2; - requisition->height = char_height + ythickness * 2; -} - -static void -gtk_text_size_allocate (GtkWidget *widget, - GtkAllocation *allocation) -{ - GtkText *text = GTK_TEXT (widget); - - widget->allocation = *allocation; - if (gtk_widget_get_realized (widget)) - { - gdk_window_move_resize (widget->window, - allocation->x, allocation->y, - allocation->width, allocation->height); - - gdk_window_move_resize (text->text_area, - widget->style->xthickness + TEXT_BORDER_ROOM, - widget->style->ythickness + TEXT_BORDER_ROOM, - MAX (1, (gint)widget->allocation.width - (gint)(widget->style->xthickness + - (gint)TEXT_BORDER_ROOM) * 2), - MAX (1, (gint)widget->allocation.height - (gint)(widget->style->ythickness + - (gint)TEXT_BORDER_ROOM) * 2)); - - recompute_geometry (text); - } -} - -static gint -gtk_text_expose (GtkWidget *widget, - GdkEventExpose *event) -{ - if (event->window == GTK_TEXT (widget)->text_area) - { - TDEBUG (("in gtk_text_expose (expose)\n")); - expose_text (GTK_TEXT (widget), &event->area, TRUE); - } - else if (event->count == 0) - { - TDEBUG (("in gtk_text_expose (focus)\n")); - gtk_text_draw_focus (widget); - } - - return FALSE; -} - -static gint -gtk_text_scroll_timeout (gpointer data) -{ - GtkText *text; - gint x, y; - GdkModifierType mask; - - text = GTK_TEXT (data); - - text->timer = 0; - gdk_window_get_pointer (text->text_area, &x, &y, &mask); - - if (mask & (GDK_BUTTON1_MASK | GDK_BUTTON3_MASK)) - { - GdkEvent *event = gdk_event_new (GDK_MOTION_NOTIFY); - - event->motion.is_hint = 0; - event->motion.x = x; - event->motion.y = y; - event->motion.state = mask; - - gtk_text_motion_notify (GTK_WIDGET (text), (GdkEventMotion *)event); - - gdk_event_free (event); - } - - return FALSE; -} - -static gint -gtk_text_button_press (GtkWidget *widget, - GdkEventButton *event) -{ - GtkText *text = GTK_TEXT (widget); - GtkOldEditable *old_editable = GTK_OLD_EDITABLE (widget); - - if (text->button && (event->button != text->button)) - return FALSE; - - text->button = event->button; - - if (!gtk_widget_has_focus (widget)) - gtk_widget_grab_focus (widget); - - if (event->button == 1) - { - switch (event->type) - { - case GDK_BUTTON_PRESS: - gtk_grab_add (widget); - - undraw_cursor (text, FALSE); - find_mouse_cursor (text, (gint)event->x, (gint)event->y); - draw_cursor (text, FALSE); - - /* Set it now, so we display things right. We'll unset it - * later if things don't work out */ - old_editable->has_selection = TRUE; - gtk_text_set_selection (GTK_OLD_EDITABLE (text), - text->cursor_mark.index, - text->cursor_mark.index); - - break; - - case GDK_2BUTTON_PRESS: - gtk_text_select_word (text, event->time); - break; - - case GDK_3BUTTON_PRESS: - gtk_text_select_line (text, event->time); - break; - - default: - break; - } - } - else if (event->type == GDK_BUTTON_PRESS) - { - if ((event->button == 2) && old_editable->editable) - { - if (old_editable->selection_start_pos == old_editable->selection_end_pos || - old_editable->has_selection) - { - undraw_cursor (text, FALSE); - find_mouse_cursor (text, (gint)event->x, (gint)event->y); - draw_cursor (text, FALSE); - - } - - gtk_selection_convert (widget, GDK_SELECTION_PRIMARY, - gdk_atom_intern_static_string ("UTF8_STRING"), - event->time); - } - else - { - GdkDisplay *display = gtk_widget_get_display (widget); - - gtk_grab_add (widget); - - undraw_cursor (text, FALSE); - find_mouse_cursor (text, event->x, event->y); - draw_cursor (text, FALSE); - - gtk_text_set_selection (GTK_OLD_EDITABLE (text), - text->cursor_mark.index, - text->cursor_mark.index); - - old_editable->has_selection = FALSE; - if (gdk_selection_owner_get_for_display (display, - GDK_SELECTION_PRIMARY) == widget->window) - gtk_selection_owner_set_for_display (display, - NULL, - GDK_SELECTION_PRIMARY, - event->time); - } - } - - return TRUE; -} - -static gint -gtk_text_button_release (GtkWidget *widget, - GdkEventButton *event) -{ - GtkText *text = GTK_TEXT (widget); - GtkOldEditable *old_editable; - GdkDisplay *display; - - gtk_grab_remove (widget); - - if (text->button != event->button) - return FALSE; - - text->button = 0; - - if (text->timer) - { - g_source_remove (text->timer); - text->timer = 0; - } - - if (event->button == 1) - { - text = GTK_TEXT (widget); - old_editable = GTK_OLD_EDITABLE (widget); - display = gtk_widget_get_display (widget); - - gtk_grab_remove (widget); - - old_editable->has_selection = FALSE; - if (old_editable->selection_start_pos != old_editable->selection_end_pos) - { - if (gtk_selection_owner_set_for_display (display, - widget, - GDK_SELECTION_PRIMARY, - event->time)) - old_editable->has_selection = TRUE; - else - gtk_text_update_text (old_editable, old_editable->selection_start_pos, - old_editable->selection_end_pos); - } - else - { - if (gdk_selection_owner_get_for_display (display, - GDK_SELECTION_PRIMARY) == widget->window) - gtk_selection_owner_set_for_display (display, - NULL, - GDK_SELECTION_PRIMARY, - event->time); - } - } - else if (event->button == 3) - { - gtk_grab_remove (widget); - } - - undraw_cursor (text, FALSE); - find_cursor (text, TRUE); - draw_cursor (text, FALSE); - - return TRUE; -} - -static gint -gtk_text_motion_notify (GtkWidget *widget, - GdkEventMotion *event) -{ - GtkText *text = GTK_TEXT (widget); - gint x, y; - gint height; - GdkModifierType mask; - - x = event->x; - y = event->y; - mask = event->state; - if (event->is_hint || (text->text_area != event->window)) - { - gdk_window_get_pointer (text->text_area, &x, &y, &mask); - } - - if ((text->button == 0) || - !(mask & (GDK_BUTTON1_MASK | GDK_BUTTON3_MASK))) - return FALSE; - - gdk_drawable_get_size (text->text_area, NULL, &height); - - if ((y < 0) || (y > height)) - { - if (text->timer == 0) - { - text->timer = gdk_threads_add_timeout (SCROLL_TIME, - gtk_text_scroll_timeout, - text); - - if (y < 0) - scroll_int (text, y/2); - else - scroll_int (text, (y - height)/2); - } - else - return FALSE; - } - - undraw_cursor (GTK_TEXT (widget), FALSE); - find_mouse_cursor (GTK_TEXT (widget), x, y); - draw_cursor (GTK_TEXT (widget), FALSE); - - gtk_text_set_selection (GTK_OLD_EDITABLE (text), - GTK_OLD_EDITABLE (text)->selection_start_pos, - text->cursor_mark.index); - - return FALSE; -} - -static void -gtk_text_insert_text (GtkEditable *editable, - const gchar *new_text, - gint new_text_length, - gint *position) -{ - GtkText *text = GTK_TEXT (editable); - GdkFont *font; - GdkColor *fore, *back; - - TextProperty *property; - - gtk_text_set_point (text, *position); - - property = MARK_CURRENT_PROPERTY (&text->point); - font = property->flags & PROPERTY_FONT ? property->font->gdk_font : NULL; - fore = property->flags & PROPERTY_FOREGROUND ? &property->fore_color : NULL; - back = property->flags & PROPERTY_BACKGROUND ? &property->back_color : NULL; - - gtk_text_insert (text, font, fore, back, new_text, new_text_length); - - *position = text->point.index; -} - -static void -gtk_text_delete_text (GtkEditable *editable, - gint start_pos, - gint end_pos) -{ - GtkText *text = GTK_TEXT (editable); - - g_return_if_fail (start_pos >= 0); - - gtk_text_set_point (text, start_pos); - if (end_pos < 0) - end_pos = TEXT_LENGTH (text); - - if (end_pos > start_pos) - gtk_text_forward_delete (text, end_pos - start_pos); -} - -static gint -gtk_text_key_press (GtkWidget *widget, - GdkEventKey *event) -{ - GtkText *text = GTK_TEXT (widget); - GtkOldEditable *old_editable = GTK_OLD_EDITABLE (widget); - gchar key; - gint return_val; - gint position; - - key = event->keyval; - return_val = TRUE; - - if ((GTK_OLD_EDITABLE(text)->editable == FALSE)) - { - switch (event->keyval) - { - case GDK_Home: - case GDK_KP_Home: - if (event->state & GDK_CONTROL_MASK) - scroll_int (text, -text->vadj->value); - else - return_val = FALSE; - break; - case GDK_End: - case GDK_KP_End: - if (event->state & GDK_CONTROL_MASK) - scroll_int (text, +text->vadj->upper); - else - return_val = FALSE; - break; - case GDK_KP_Page_Up: - case GDK_Page_Up: scroll_int (text, -text->vadj->page_increment); break; - case GDK_KP_Page_Down: - case GDK_Page_Down: scroll_int (text, +text->vadj->page_increment); break; - case GDK_KP_Up: - case GDK_Up: scroll_int (text, -KEY_SCROLL_PIXELS); break; - case GDK_KP_Down: - case GDK_Down: scroll_int (text, +KEY_SCROLL_PIXELS); break; - case GDK_Return: - case GDK_ISO_Enter: - case GDK_KP_Enter: - if (event->state & GDK_CONTROL_MASK) - gtk_signal_emit_by_name (GTK_OBJECT (text), "activate"); - else - return_val = FALSE; - break; - default: - return_val = FALSE; - break; - } - } - else - { - gint extend_selection; - gint extend_start; - guint initial_pos = old_editable->current_pos; - - text->point = find_mark (text, text->cursor_mark.index); - - extend_selection = event->state & GDK_SHIFT_MASK; - extend_start = FALSE; - - if (extend_selection) - { - old_editable->has_selection = TRUE; - - if (old_editable->selection_start_pos == old_editable->selection_end_pos) - { - old_editable->selection_start_pos = text->point.index; - old_editable->selection_end_pos = text->point.index; - } - - extend_start = (text->point.index == old_editable->selection_start_pos); - } - - switch (event->keyval) - { - case GDK_KP_Home: - case GDK_Home: - if (event->state & GDK_CONTROL_MASK) - move_cursor_buffer_ver (text, -1); - else - gtk_text_move_beginning_of_line (text); - break; - case GDK_KP_End: - case GDK_End: - if (event->state & GDK_CONTROL_MASK) - move_cursor_buffer_ver (text, +1); - else - gtk_text_move_end_of_line (text); - break; - case GDK_KP_Page_Up: - case GDK_Page_Up: move_cursor_page_ver (text, -1); break; - case GDK_KP_Page_Down: - case GDK_Page_Down: move_cursor_page_ver (text, +1); break; - /* CUA has Ctrl-Up/Ctrl-Down as paragraph up down */ - case GDK_KP_Up: - case GDK_Up: move_cursor_ver (text, -1); break; - case GDK_KP_Down: - case GDK_Down: move_cursor_ver (text, +1); break; - case GDK_KP_Left: - case GDK_Left: - if (event->state & GDK_CONTROL_MASK) - gtk_text_move_backward_word (text); - else - move_cursor_hor (text, -1); - break; - case GDK_KP_Right: - case GDK_Right: - if (event->state & GDK_CONTROL_MASK) - gtk_text_move_forward_word (text); - else - move_cursor_hor (text, +1); - break; - - case GDK_BackSpace: - if (event->state & GDK_CONTROL_MASK) - gtk_text_delete_backward_word (text); - else - gtk_text_delete_backward_character (text); - break; - case GDK_Clear: - gtk_text_delete_line (text); - break; - case GDK_KP_Insert: - case GDK_Insert: - if (event->state & GDK_SHIFT_MASK) - { - extend_selection = FALSE; - gtk_editable_paste_clipboard (GTK_EDITABLE (old_editable)); - } - else if (event->state & GDK_CONTROL_MASK) - { - gtk_editable_copy_clipboard (GTK_EDITABLE (old_editable)); - } - else - { - /* gtk_toggle_insert(text) -- IMPLEMENT */ - } - break; - case GDK_Delete: - case GDK_KP_Delete: - if (event->state & GDK_CONTROL_MASK) - gtk_text_delete_forward_word (text); - else if (event->state & GDK_SHIFT_MASK) - { - extend_selection = FALSE; - gtk_editable_cut_clipboard (GTK_EDITABLE (old_editable)); - } - else - gtk_text_delete_forward_character (text); - break; - case GDK_Tab: - case GDK_ISO_Left_Tab: - case GDK_KP_Tab: - position = text->point.index; - gtk_editable_insert_text (GTK_EDITABLE (old_editable), "\t", 1, &position); - break; - case GDK_KP_Enter: - case GDK_ISO_Enter: - case GDK_Return: - if (event->state & GDK_CONTROL_MASK) - gtk_signal_emit_by_name (GTK_OBJECT (text), "activate"); - else - { - position = text->point.index; - gtk_editable_insert_text (GTK_EDITABLE (old_editable), "\n", 1, &position); - } - break; - case GDK_Escape: - /* Don't insert literally */ - return_val = FALSE; - break; - - default: - return_val = FALSE; - - if (event->state & GDK_CONTROL_MASK) - { - return_val = TRUE; - if ((key >= 'A') && (key <= 'Z')) - key -= 'A' - 'a'; - - switch (key) - { - case 'a': - gtk_text_move_beginning_of_line (text); - break; - case 'b': - gtk_text_move_backward_character (text); - break; - case 'c': - gtk_editable_copy_clipboard (GTK_EDITABLE (text)); - break; - case 'd': - gtk_text_delete_forward_character (text); - break; - case 'e': - gtk_text_move_end_of_line (text); - break; - case 'f': - gtk_text_move_forward_character (text); - break; - case 'h': - gtk_text_delete_backward_character (text); - break; - case 'k': - gtk_text_delete_to_line_end (text); - break; - case 'n': - gtk_text_move_next_line (text); - break; - case 'p': - gtk_text_move_previous_line (text); - break; - case 'u': - gtk_text_delete_line (text); - break; - case 'v': - gtk_editable_paste_clipboard (GTK_EDITABLE (text)); - break; - case 'w': - gtk_text_delete_backward_word (text); - break; - case 'x': - gtk_editable_cut_clipboard (GTK_EDITABLE (text)); - break; - default: - return_val = FALSE; - } - - break; - } - else if (event->state & GDK_MOD1_MASK) - { - return_val = TRUE; - if ((key >= 'A') && (key <= 'Z')) - key -= 'A' - 'a'; - - switch (key) - { - case 'b': - gtk_text_move_backward_word (text); - break; - case 'd': - gtk_text_delete_forward_word (text); - break; - case 'f': - gtk_text_move_forward_word (text); - break; - default: - return_val = FALSE; - } - - break; - } - else if (event->length > 0) - { - extend_selection = FALSE; - - gtk_editable_delete_selection (GTK_EDITABLE (old_editable)); - position = text->point.index; - gtk_editable_insert_text (GTK_EDITABLE (old_editable), event->string, event->length, &position); - - return_val = TRUE; - } - } - - if (return_val && (old_editable->current_pos != initial_pos)) - { - if (extend_selection) - { - if (old_editable->current_pos < old_editable->selection_start_pos) - gtk_text_set_selection (old_editable, old_editable->current_pos, - old_editable->selection_end_pos); - else if (old_editable->current_pos > old_editable->selection_end_pos) - gtk_text_set_selection (old_editable, old_editable->selection_start_pos, - old_editable->current_pos); - else - { - if (extend_start) - gtk_text_set_selection (old_editable, old_editable->current_pos, - old_editable->selection_end_pos); - else - gtk_text_set_selection (old_editable, old_editable->selection_start_pos, - old_editable->current_pos); - } - } - else - gtk_text_set_selection (old_editable, 0, 0); - - gtk_old_editable_claim_selection (old_editable, - old_editable->selection_start_pos != old_editable->selection_end_pos, - event->time); - } - } - - return return_val; -} - -static void -gtk_text_adjustment (GtkAdjustment *adjustment, - GtkText *text) -{ - g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment)); - g_return_if_fail (GTK_IS_TEXT (text)); - - /* Just ignore it if we haven't been size-allocated and realized yet */ - if (text->line_start_cache == NULL) - return; - - if (adjustment == text->hadj) - { - g_warning ("horizontal scrolling not implemented"); - } - else - { - gint diff = ((gint)adjustment->value) - text->last_ver_value; - - if (diff != 0) - { - undraw_cursor (text, FALSE); - - if (diff > 0) - scroll_down (text, diff); - else /* if (diff < 0) */ - scroll_up (text, diff); - - draw_cursor (text, FALSE); - - text->last_ver_value = adjustment->value; - } - } -} - -static void -gtk_text_adjustment_destroyed (GtkAdjustment *adjustment, - GtkText *text) -{ - g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment)); - g_return_if_fail (GTK_IS_TEXT (text)); - - if (adjustment == text->hadj) - gtk_text_set_adjustments (text, NULL, text->vadj); - if (adjustment == text->vadj) - gtk_text_set_adjustments (text, text->hadj, NULL); -} - - -static GtkPropertyMark -find_this_line_start_mark (GtkText* text, guint point_position, const GtkPropertyMark* near) -{ - GtkPropertyMark mark; - - mark = find_mark_near (text, point_position, near); - - while (mark.index > 0 && - GTK_TEXT_INDEX (text, mark.index - 1) != LINE_DELIM) - decrement_mark (&mark); - - return mark; -} - -static void -init_tab_cont (GtkText* text, PrevTabCont* tab_cont) -{ - tab_cont->pixel_offset = 0; - tab_cont->tab_start.tab_stops = text->tab_stops; - tab_cont->tab_start.to_next_tab = (gintptr) text->tab_stops->data; - - if (!tab_cont->tab_start.to_next_tab) - tab_cont->tab_start.to_next_tab = text->default_tab_width; -} - -static void -line_params_iterate (GtkText* text, - const GtkPropertyMark* mark0, - const PrevTabCont* tab_mark0, - gint8 alloc, - void* data, - LineIteratorFunction iter) - /* mark0 MUST be a real line start. if ALLOC, allocate line params - * from a mem chunk. DATA is passed to ITER_CALL, which is called - * for each line following MARK, iteration continues unless ITER_CALL - * returns TRUE. */ -{ - GtkPropertyMark mark = *mark0; - PrevTabCont tab_conts[2]; - LineParams *lp, lpbuf; - gint tab_cont_index = 0; - - if (tab_mark0) - tab_conts[0] = *tab_mark0; - else - init_tab_cont (text, tab_conts); - - for (;;) - { - if (alloc) - lp = g_slice_new (LineParams); - else - lp = &lpbuf; - - *lp = find_line_params (text, &mark, tab_conts + tab_cont_index, - tab_conts + (tab_cont_index + 1) % 2); - - if ((*iter) (text, lp, data)) - return; - - if (LAST_INDEX (text, lp->end)) - break; - - mark = lp->end; - advance_mark (&mark); - tab_cont_index = (tab_cont_index + 1) % 2; - } -} - -static gint -fetch_lines_iterator (GtkText* text, LineParams* lp, void* data) -{ - FetchLinesData *fldata = (FetchLinesData*) data; - - fldata->new_lines = g_list_prepend (fldata->new_lines, lp); - - switch (fldata->fl_type) - { - case FetchLinesCount: - if (!text->line_wrap || !lp->wraps) - fldata->data += 1; - - if (fldata->data >= fldata->data_max) - return TRUE; - - break; - case FetchLinesPixels: - - fldata->data += LINE_HEIGHT(*lp); - - if (fldata->data >= fldata->data_max) - return TRUE; - - break; - } - - return FALSE; -} - -static GList* -fetch_lines (GtkText* text, - const GtkPropertyMark* mark0, - const PrevTabCont* tab_cont0, - FLType fl_type, - gint data) -{ - FetchLinesData fl_data; - - fl_data.new_lines = NULL; - fl_data.data = 0; - fl_data.data_max = data; - fl_data.fl_type = fl_type; - - line_params_iterate (text, mark0, tab_cont0, TRUE, &fl_data, fetch_lines_iterator); - - return g_list_reverse (fl_data.new_lines); -} - -static void -fetch_lines_backward (GtkText* text) -{ - GList *new_line_start; - GtkPropertyMark mark; - - if (CACHE_DATA(text->line_start_cache).start.index == 0) - return; - - mark = find_this_line_start_mark (text, - CACHE_DATA(text->line_start_cache).start.index - 1, - &CACHE_DATA(text->line_start_cache).start); - - new_line_start = fetch_lines (text, &mark, NULL, FetchLinesCount, 1); - - while (new_line_start->next) - new_line_start = new_line_start->next; - - new_line_start->next = text->line_start_cache; - text->line_start_cache->prev = new_line_start; -} - -static void -fetch_lines_forward (GtkText* text, gint line_count) -{ - GtkPropertyMark mark; - GList* line = text->line_start_cache; - - while(line->next) - line = line->next; - - mark = CACHE_DATA(line).end; - - if (LAST_INDEX (text, mark)) - return; - - advance_mark(&mark); - - line->next = fetch_lines (text, &mark, &CACHE_DATA(line).tab_cont_next, FetchLinesCount, line_count); - - if (line->next) - line->next->prev = line; -} - -/* Compute the number of lines, and vertical pixels for n characters - * starting from the point - */ -static void -compute_lines_pixels (GtkText* text, guint char_count, - guint *lines, guint *pixels) -{ - GList *line = text->current_line; - gint chars_left = char_count; - - *lines = 0; - *pixels = 0; - - /* If chars_left == 0, that means we're joining two lines in a - * deletion, so add in the values for the next line as well - */ - for (; line && chars_left >= 0; line = line->next) - { - *pixels += LINE_HEIGHT(CACHE_DATA(line)); - - if (line == text->current_line) - chars_left -= CACHE_DATA(line).end.index - text->point.index + 1; - else - chars_left -= CACHE_DATA(line).end.index - CACHE_DATA(line).start.index + 1; - - if (!text->line_wrap || !CACHE_DATA(line).wraps) - *lines += 1; - else - if (chars_left < 0) - chars_left = 0; /* force another loop */ - - if (!line->next) - fetch_lines_forward (text, 1); - } -} - -static gint -total_line_height (GtkText* text, GList* line, gint line_count) -{ - gint height = 0; - - for (; line && line_count > 0; line = line->next) - { - height += LINE_HEIGHT(CACHE_DATA(line)); - - if (!text->line_wrap || !CACHE_DATA(line).wraps) - line_count -= 1; - - if (!line->next) - fetch_lines_forward (text, line_count); - } - - return height; -} - -static void -swap_lines (GtkText* text, GList* old, GList* new, guint old_line_count) -{ - if (old == text->line_start_cache) - { - GList* last; - - for (; old_line_count > 0; old_line_count -= 1) - { - while (text->line_start_cache && - text->line_wrap && - CACHE_DATA(text->line_start_cache).wraps) - remove_cache_line(text, text->line_start_cache); - - remove_cache_line(text, text->line_start_cache); - } - - last = g_list_last (new); - - last->next = text->line_start_cache; - - if (text->line_start_cache) - text->line_start_cache->prev = last; - - text->line_start_cache = new; - } - else - { - GList *last; - - g_assert (old->prev); - - last = old->prev; - - for (; old_line_count > 0; old_line_count -= 1) - { - while (old && text->line_wrap && CACHE_DATA(old).wraps) - old = remove_cache_line (text, old); - - old = remove_cache_line (text, old); - } - - last->next = new; - new->prev = last; - - last = g_list_last (new); - - last->next = old; - - if (old) - old->prev = last; - } -} - -static void -correct_cache_delete (GtkText* text, gint nchars, gint lines) -{ - GList* cache = text->current_line; - gint i; - - for (i = 0; cache && i < lines; i += 1, cache = cache->next) - /* nothing */; - - for (; cache; cache = cache->next) - { - GtkPropertyMark *start = &CACHE_DATA(cache).start; - GtkPropertyMark *end = &CACHE_DATA(cache).end; - - start->index -= nchars; - end->index -= nchars; - - if (LAST_INDEX (text, text->point) && - start->index == text->point.index) - *start = text->point; - else if (start->property == text->point.property) - start->offset = start->index - (text->point.index - text->point.offset); - - if (LAST_INDEX (text, text->point) && - end->index == text->point.index) - *end = text->point; - if (end->property == text->point.property) - end->offset = end->index - (text->point.index - text->point.offset); - - /*TEXT_ASSERT_MARK(text, start, "start");*/ - /*TEXT_ASSERT_MARK(text, end, "end");*/ - } -} - -static void -delete_expose (GtkText* text, guint nchars, guint old_lines, guint old_pixels) -{ - GtkWidget *widget = GTK_WIDGET (text); - - gint pixel_height; - guint new_pixels = 0; - GdkRectangle rect; - GList* new_line = NULL; - gint width, height; - - text->cursor_virtual_x = 0; - - correct_cache_delete (text, nchars, old_lines); - - pixel_height = pixel_height_of(text, text->current_line) - - LINE_HEIGHT(CACHE_DATA(text->current_line)); - - if (CACHE_DATA(text->current_line).start.index == text->point.index) - CACHE_DATA(text->current_line).start = text->point; - - new_line = fetch_lines (text, - &CACHE_DATA(text->current_line).start, - &CACHE_DATA(text->current_line).tab_cont, - FetchLinesCount, - 1); - - swap_lines (text, text->current_line, new_line, old_lines); - - text->current_line = new_line; - - new_pixels = total_line_height (text, new_line, 1); - - gdk_drawable_get_size (text->text_area, &width, &height); - - if (old_pixels != new_pixels) - { - if (!widget->style->bg_pixmap[GTK_STATE_NORMAL]) - { - gdk_draw_drawable (text->text_area, - text->gc, - text->text_area, - 0, - pixel_height + old_pixels, - 0, - pixel_height + new_pixels, - width, - height); - } - text->vadj->upper += new_pixels; - text->vadj->upper -= old_pixels; - adjust_adj (text, text->vadj); - } - - rect.x = 0; - rect.y = pixel_height; - rect.width = width; - rect.height = new_pixels; - - expose_text (text, &rect, FALSE); - gtk_text_draw_focus ( (GtkWidget *) text); - - text->cursor_mark = text->point; - - find_cursor (text, TRUE); - - if (old_pixels != new_pixels) - { - if (widget->style->bg_pixmap[GTK_STATE_NORMAL]) - { - rect.x = 0; - rect.y = pixel_height + new_pixels; - rect.width = width; - rect.height = height - rect.y; - - expose_text (text, &rect, FALSE); - } - else - process_exposes (text); - } - - TEXT_ASSERT (text); - TEXT_SHOW(text); -} - -/* note, the point has already been moved forward */ -static void -correct_cache_insert (GtkText* text, gint nchars) -{ - GList *cache; - GtkPropertyMark *start; - GtkPropertyMark *end; - gboolean was_split = FALSE; - - /* We need to distinguish whether the property was split in the - * insert or not, so we check if the point (which points after - * the insertion here), points to the same character as the - * point before. Ugh. - */ - if (nchars > 0) - { - GtkPropertyMark tmp_mark = text->point; - move_mark_n (&tmp_mark, -1); - - if (tmp_mark.property != text->point.property) - was_split = TRUE; - } - - /* If we inserted a property exactly at the beginning of the - * line, we have to correct here, or fetch_lines will - * fetch junk. - */ - start = &CACHE_DATA(text->current_line).start; - - /* Check if if we split exactly at the beginning of the line: - * (was_split won't be set if we are inserting at the end of the text, - * so we don't check) - */ - if (start->offset == MARK_CURRENT_PROPERTY (start)->length) - SET_PROPERTY_MARK (start, start->property->next, 0); - /* Check if we inserted a property at the beginning of the text: */ - else if (was_split && - (start->property == text->point.property) && - (start->index == text->point.index - nchars)) - SET_PROPERTY_MARK (start, start->property->prev, 0); - - /* Now correct the offsets, and check for start or end marks that - * are after the point, yet point to a property before the point's - * property. This indicates that they are meant to point to the - * second half of a property we split in insert_text_property(), so - * we fix them up that way. - */ - cache = text->current_line->next; - - for (; cache; cache = cache->next) - { - start = &CACHE_DATA(cache).start; - end = &CACHE_DATA(cache).end; - - if (LAST_INDEX (text, text->point) && - start->index == text->point.index) - *start = text->point; - else if (start->index >= text->point.index - nchars) - { - if (!was_split && start->property == text->point.property) - move_mark_n(start, nchars); - else - { - if (start->property->next && - (start->property->next->next == text->point.property)) - { - g_assert (start->offset >= MARK_CURRENT_PROPERTY (start)->length); - start->offset -= MARK_CURRENT_PROPERTY (start)->length; - start->property = text->point.property; - } - start->index += nchars; - } - } - - if (LAST_INDEX (text, text->point) && - end->index == text->point.index) - *end = text->point; - if (end->index >= text->point.index - nchars) - { - if (!was_split && end->property == text->point.property) - move_mark_n(end, nchars); - else - { - if (end->property->next && - (end->property->next->next == text->point.property)) - { - g_assert (end->offset >= MARK_CURRENT_PROPERTY (end)->length); - end->offset -= MARK_CURRENT_PROPERTY (end)->length; - end->property = text->point.property; - } - end->index += nchars; - } - } - - /*TEXT_ASSERT_MARK(text, start, "start");*/ - /*TEXT_ASSERT_MARK(text, end, "end");*/ - } -} - - -static void -insert_expose (GtkText* text, guint old_pixels, gint nchars, - guint new_line_count) -{ - GtkWidget *widget = GTK_WIDGET (text); - - gint pixel_height; - guint new_pixels = 0; - GdkRectangle rect; - GList* new_lines = NULL; - gint width, height; - - text->cursor_virtual_x = 0; - - undraw_cursor (text, FALSE); - - correct_cache_insert (text, nchars); - - TEXT_SHOW_ADJ (text, text->vadj, "vadj"); - - pixel_height = pixel_height_of(text, text->current_line) - - LINE_HEIGHT(CACHE_DATA(text->current_line)); - - new_lines = fetch_lines (text, - &CACHE_DATA(text->current_line).start, - &CACHE_DATA(text->current_line).tab_cont, - FetchLinesCount, - new_line_count); - - swap_lines (text, text->current_line, new_lines, 1); - - text->current_line = new_lines; - - new_pixels = total_line_height (text, new_lines, new_line_count); - - gdk_drawable_get_size (text->text_area, &width, &height); - - if (old_pixels != new_pixels) - { - if (!widget->style->bg_pixmap[GTK_STATE_NORMAL]) - { - gdk_draw_drawable (text->text_area, - text->gc, - text->text_area, - 0, - pixel_height + old_pixels, - 0, - pixel_height + new_pixels, - width, - height + (old_pixels - new_pixels) - pixel_height); - - } - text->vadj->upper += new_pixels; - text->vadj->upper -= old_pixels; - adjust_adj (text, text->vadj); - } - - rect.x = 0; - rect.y = pixel_height; - rect.width = width; - rect.height = new_pixels; - - expose_text (text, &rect, FALSE); - gtk_text_draw_focus ( (GtkWidget *) text); - - text->cursor_mark = text->point; - - find_cursor (text, TRUE); - - draw_cursor (text, FALSE); - - if (old_pixels != new_pixels) - { - if (widget->style->bg_pixmap[GTK_STATE_NORMAL]) - { - rect.x = 0; - rect.y = pixel_height + new_pixels; - rect.width = width; - rect.height = height - rect.y; - - expose_text (text, &rect, FALSE); - } - else - process_exposes (text); - } - - TEXT_SHOW_ADJ (text, text->vadj, "vadj"); - TEXT_ASSERT (text); - TEXT_SHOW(text); -} - -/* Text property functions */ - -static guint -font_hash (gconstpointer font) -{ - return gdk_font_id ((const GdkFont*) font); -} - -static GHashTable *font_cache_table = NULL; - -static GtkTextFont* -get_text_font (GdkFont* gfont) -{ - GtkTextFont* tf; - gint i; - - if (!font_cache_table) - font_cache_table = g_hash_table_new (font_hash, (GEqualFunc) gdk_font_equal); - - tf = g_hash_table_lookup (font_cache_table, gfont); - - if (tf) - { - tf->ref_count++; - return tf; - } - - tf = g_new (GtkTextFont, 1); - tf->ref_count = 1; - - tf->gdk_font = gfont; - gdk_font_ref (gfont); - - for(i = 0; i < 256; i += 1) - tf->char_widths[i] = gdk_char_width (gfont, (char)i); - - g_hash_table_insert (font_cache_table, gfont, tf); - - return tf; -} - -static void -text_font_unref (GtkTextFont *text_font) -{ - text_font->ref_count--; - if (text_font->ref_count == 0) - { - g_hash_table_remove (font_cache_table, text_font->gdk_font); - gdk_font_unref (text_font->gdk_font); - g_free (text_font); - } -} - -static gint -text_properties_equal (TextProperty* prop, GdkFont* font, const GdkColor *fore, const GdkColor *back) -{ - if (prop->flags & PROPERTY_FONT) - { - gboolean retval; - GtkTextFont *text_font; - - if (!font) - return FALSE; - - text_font = get_text_font (font); - - retval = (prop->font == text_font); - text_font_unref (text_font); - - if (!retval) - return FALSE; - } - else - if (font != NULL) - return FALSE; - - if (prop->flags & PROPERTY_FOREGROUND) - { - if (!fore || !gdk_color_equal (&prop->fore_color, fore)) - return FALSE; - } - else - if (fore != NULL) - return FALSE; - - if (prop->flags & PROPERTY_BACKGROUND) - { - if (!back || !gdk_color_equal (&prop->back_color, back)) - return FALSE; - } - else - if (back != NULL) - return FALSE; - - return TRUE; -} - -static void -realize_property (GtkText *text, TextProperty *prop) -{ - GdkColormap *colormap = gtk_widget_get_colormap (GTK_WIDGET (text)); - - if (prop->flags & PROPERTY_FOREGROUND) - gdk_colormap_alloc_color (colormap, &prop->fore_color, FALSE, FALSE); - - if (prop->flags & PROPERTY_BACKGROUND) - gdk_colormap_alloc_color (colormap, &prop->back_color, FALSE, FALSE); -} - -static void -realize_properties (GtkText *text) -{ - GList *tmp_list = text->text_properties; - - while (tmp_list) - { - realize_property (text, tmp_list->data); - - tmp_list = tmp_list->next; - } -} - -static void -unrealize_property (GtkText *text, TextProperty *prop) -{ - GdkColormap *colormap = gtk_widget_get_colormap (GTK_WIDGET (text)); - - if (prop->flags & PROPERTY_FOREGROUND) - gdk_colormap_free_colors (colormap, &prop->fore_color, 1); - - if (prop->flags & PROPERTY_BACKGROUND) - gdk_colormap_free_colors (colormap, &prop->back_color, 1); -} - -static void -unrealize_properties (GtkText *text) -{ - GList *tmp_list = text->text_properties; - - while (tmp_list) - { - unrealize_property (text, tmp_list->data); - - tmp_list = tmp_list->next; - } -} - -static TextProperty* -new_text_property (GtkText *text, GdkFont *font, const GdkColor* fore, - const GdkColor* back, guint length) -{ - TextProperty *prop; - - prop = g_slice_new (TextProperty); - - prop->flags = 0; - if (font) - { - prop->flags |= PROPERTY_FONT; - prop->font = get_text_font (font); - } - else - prop->font = NULL; - - if (fore) - { - prop->flags |= PROPERTY_FOREGROUND; - prop->fore_color = *fore; - } - - if (back) - { - prop->flags |= PROPERTY_BACKGROUND; - prop->back_color = *back; - } - - prop->length = length; - - if (gtk_widget_get_realized (GTK_WIDGET (text))) - realize_property (text, prop); - - return prop; -} - -static void -destroy_text_property (TextProperty *prop) -{ - if (prop->font) - text_font_unref (prop->font); - - g_slice_free (TextProperty, prop); -} - -/* Flop the memory between the point and the gap around like a - * dead fish. */ -static void -move_gap (GtkText* text, guint index) -{ - if (text->gap_position < index) - { - gint diff = index - text->gap_position; - - if (text->use_wchar) - g_memmove (text->text.wc + text->gap_position, - text->text.wc + text->gap_position + text->gap_size, - diff*sizeof (GdkWChar)); - else - g_memmove (text->text.ch + text->gap_position, - text->text.ch + text->gap_position + text->gap_size, - diff); - - text->gap_position = index; - } - else if (text->gap_position > index) - { - gint diff = text->gap_position - index; - - if (text->use_wchar) - g_memmove (text->text.wc + index + text->gap_size, - text->text.wc + index, - diff*sizeof (GdkWChar)); - else - g_memmove (text->text.ch + index + text->gap_size, - text->text.ch + index, - diff); - - text->gap_position = index; - } -} - -/* Increase the gap size. */ -static void -make_forward_space (GtkText* text, guint len) -{ - if (text->gap_size < len) - { - guint sum = MAX(2*len, MIN_GAP_SIZE) + text->text_end; - - if (sum >= text->text_len) - { - guint i = 1; - - while (i <= sum) i <<= 1; - - if (text->use_wchar) - text->text.wc = (GdkWChar *)g_realloc(text->text.wc, - i*sizeof(GdkWChar)); - else - text->text.ch = (guchar *)g_realloc(text->text.ch, i); - text->text_len = i; - } - - if (text->use_wchar) - g_memmove (text->text.wc + text->gap_position + text->gap_size + 2*len, - text->text.wc + text->gap_position + text->gap_size, - (text->text_end - (text->gap_position + text->gap_size)) - *sizeof(GdkWChar)); - else - g_memmove (text->text.ch + text->gap_position + text->gap_size + 2*len, - text->text.ch + text->gap_position + text->gap_size, - text->text_end - (text->gap_position + text->gap_size)); - - text->text_end += len*2; - text->gap_size += len*2; - } -} - -/* Inserts into the text property list a list element that guarantees - * that for len characters following the point, text has the correct - * property. does not move point. adjusts text_properties_point and - * text_properties_point_offset relative to the current value of - * point. */ -static void -insert_text_property (GtkText* text, GdkFont* font, - const GdkColor *fore, const GdkColor* back, guint len) -{ - GtkPropertyMark *mark = &text->point; - TextProperty* forward_prop = MARK_CURRENT_PROPERTY(mark); - TextProperty* backward_prop = MARK_PREV_PROPERTY(mark); - - if (MARK_OFFSET(mark) == 0) - { - /* Point is on the boundary of two properties. - * If it is the same as either, grow, else insert - * a new one. */ - - if (text_properties_equal(forward_prop, font, fore, back)) - { - /* Grow the property in front of us. */ - - MARK_PROPERTY_LENGTH(mark) += len; - } - else if (backward_prop && - text_properties_equal(backward_prop, font, fore, back)) - { - /* Grow property behind us, point property and offset - * change. */ - - SET_PROPERTY_MARK (&text->point, - MARK_PREV_LIST_PTR (mark), - backward_prop->length); - - backward_prop->length += len; - } - else if ((MARK_NEXT_LIST_PTR(mark) == NULL) && - (forward_prop->length == 1)) - { - /* Next property just has last position, take it over */ - - if (gtk_widget_get_realized (GTK_WIDGET (text))) - unrealize_property (text, forward_prop); - - forward_prop->flags = 0; - if (font) - { - forward_prop->flags |= PROPERTY_FONT; - forward_prop->font = get_text_font (font); - } - else - forward_prop->font = NULL; - - if (fore) - { - forward_prop->flags |= PROPERTY_FOREGROUND; - forward_prop->fore_color = *fore; - } - if (back) - { - forward_prop->flags |= PROPERTY_BACKGROUND; - forward_prop->back_color = *back; - } - forward_prop->length += len; - - if (gtk_widget_get_realized (GTK_WIDGET (text))) - realize_property (text, forward_prop); - } - else - { - /* Splice a new property into the list. */ - - GList* new_prop = g_list_alloc(); - - new_prop->next = MARK_LIST_PTR(mark); - new_prop->prev = MARK_PREV_LIST_PTR(mark); - new_prop->next->prev = new_prop; - - if (new_prop->prev) - new_prop->prev->next = new_prop; - - new_prop->data = new_text_property (text, font, fore, back, len); - - SET_PROPERTY_MARK (mark, new_prop, 0); - } - } - else - { - /* The following will screw up the line_start cache, - * we'll fix it up in correct_cache_insert - */ - - /* In the middle of forward_prop, if properties are equal, - * just add to its length, else split it into two and splice - * in a new one. */ - if (text_properties_equal (forward_prop, font, fore, back)) - { - forward_prop->length += len; - } - else if ((MARK_NEXT_LIST_PTR(mark) == NULL) && - (MARK_OFFSET(mark) + 1 == forward_prop->length)) - { - /* Inserting before only the last position in the text */ - - GList* new_prop; - forward_prop->length -= 1; - - new_prop = g_list_alloc(); - new_prop->data = new_text_property (text, font, fore, back, len+1); - new_prop->prev = MARK_LIST_PTR(mark); - new_prop->next = NULL; - MARK_NEXT_LIST_PTR(mark) = new_prop; - - SET_PROPERTY_MARK (mark, new_prop, 0); - } - else - { - GList* new_prop = g_list_alloc(); - GList* new_prop_forward = g_list_alloc(); - gint old_length = forward_prop->length; - GList* next = MARK_NEXT_LIST_PTR(mark); - - /* Set the new lengths according to where they are split. Construct - * two new properties. */ - forward_prop->length = MARK_OFFSET(mark); - - new_prop_forward->data = - new_text_property(text, - forward_prop->flags & PROPERTY_FONT ? - forward_prop->font->gdk_font : NULL, - forward_prop->flags & PROPERTY_FOREGROUND ? - &forward_prop->fore_color : NULL, - forward_prop->flags & PROPERTY_BACKGROUND ? - &forward_prop->back_color : NULL, - old_length - forward_prop->length); - - new_prop->data = new_text_property(text, font, fore, back, len); - - /* Now splice things in. */ - MARK_NEXT_LIST_PTR(mark) = new_prop; - new_prop->prev = MARK_LIST_PTR(mark); - - new_prop->next = new_prop_forward; - new_prop_forward->prev = new_prop; - - new_prop_forward->next = next; - - if (next) - next->prev = new_prop_forward; - - SET_PROPERTY_MARK (mark, new_prop, 0); - } - } - - while (text->text_properties_end->next) - text->text_properties_end = text->text_properties_end->next; - - while (text->text_properties->prev) - text->text_properties = text->text_properties->prev; -} - -static void -delete_text_property (GtkText* text, guint nchars) -{ - /* Delete nchars forward from point. */ - - /* Deleting text properties is problematical, because we - * might be storing around marks pointing to a property. - * - * The marks in question and how we handle them are: - * - * point: We know the new value, since it will be at the - * end of the deleted text, and we move it there - * first. - * cursor: We just remove the mark and set it equal to the - * point after the operation. - * line-start cache: We replace most affected lines. - * The current line gets used to fetch the new - * lines so, if necessary, (delete at the beginning - * of a line) we fix it up by setting it equal to the - * point. - */ - - TextProperty *prop; - GList *tmp; - gint is_first; - - for(; nchars; nchars -= 1) - { - prop = MARK_CURRENT_PROPERTY(&text->point); - - prop->length -= 1; - - if (prop->length == 0) - { - tmp = MARK_LIST_PTR (&text->point); - - is_first = tmp == text->text_properties; - - MARK_LIST_PTR (&text->point) = g_list_remove_link (tmp, tmp); - text->point.offset = 0; - - if (gtk_widget_get_realized (GTK_WIDGET (text))) - unrealize_property (text, prop); - - destroy_text_property (prop); - g_list_free_1 (tmp); - - prop = MARK_CURRENT_PROPERTY (&text->point); - - if (is_first) - text->text_properties = MARK_LIST_PTR (&text->point); - - g_assert (prop->length != 0); - } - else if (prop->length == text->point.offset) - { - MARK_LIST_PTR (&text->point) = MARK_NEXT_LIST_PTR (&text->point); - text->point.offset = 0; - } - } - - /* Check to see if we have just the single final position remaining - * along in a property; if so, combine it with the previous property - */ - if (LAST_INDEX (text, text->point) && - (MARK_OFFSET (&text->point) == 0) && - (MARK_PREV_LIST_PTR(&text->point) != NULL)) - { - tmp = MARK_LIST_PTR (&text->point); - prop = MARK_CURRENT_PROPERTY(&text->point); - - MARK_LIST_PTR (&text->point) = MARK_PREV_LIST_PTR (&text->point); - MARK_CURRENT_PROPERTY(&text->point)->length += 1; - MARK_NEXT_LIST_PTR(&text->point) = NULL; - - text->point.offset = MARK_CURRENT_PROPERTY(&text->point)->length - 1; - - if (gtk_widget_get_realized (GTK_WIDGET (text))) - unrealize_property (text, prop); - - destroy_text_property (prop); - g_list_free_1 (tmp); - } -} - -static void -init_properties (GtkText *text) -{ - if (!text->text_properties) - { - text->text_properties = g_list_alloc(); - text->text_properties->next = NULL; - text->text_properties->prev = NULL; - text->text_properties->data = new_text_property (text, NULL, NULL, NULL, 1); - text->text_properties_end = text->text_properties; - - SET_PROPERTY_MARK (&text->point, text->text_properties, 0); - - text->point.index = 0; - } -} - - -/**********************************************************************/ -/* Property Movement */ -/**********************************************************************/ - -static void -move_mark_n (GtkPropertyMark* mark, gint n) -{ - if (n > 0) - advance_mark_n(mark, n); - else if (n < 0) - decrement_mark_n(mark, -n); -} - -static void -advance_mark (GtkPropertyMark* mark) -{ - TextProperty* prop = MARK_CURRENT_PROPERTY (mark); - - mark->index += 1; - - if (prop->length > mark->offset + 1) - mark->offset += 1; - else - { - mark->property = MARK_NEXT_LIST_PTR (mark); - mark->offset = 0; - } -} - -static void -advance_mark_n (GtkPropertyMark* mark, gint n) -{ - gint i; - TextProperty* prop; - - g_assert (n > 0); - - i = 0; /* otherwise it migth not be init. */ - prop = MARK_CURRENT_PROPERTY(mark); - - if ((prop->length - mark->offset - 1) < n) { /* if we need to change prop. */ - /* to make it easier */ - n += (mark->offset); - mark->index -= mark->offset; - mark->offset = 0; - /* first we take seven-mile-leaps to get to the right text - * property. */ - while ((n-i) > prop->length - 1) { - i += prop->length; - mark->index += prop->length; - mark->property = MARK_NEXT_LIST_PTR (mark); - prop = MARK_CURRENT_PROPERTY (mark); - } - } - - /* and then the rest */ - mark->index += n - i; - mark->offset += n - i; -} - -static void -decrement_mark (GtkPropertyMark* mark) -{ - mark->index -= 1; - - if (mark->offset > 0) - mark->offset -= 1; - else - { - mark->property = MARK_PREV_LIST_PTR (mark); - mark->offset = MARK_CURRENT_PROPERTY (mark)->length - 1; - } -} - -static void -decrement_mark_n (GtkPropertyMark* mark, gint n) -{ - g_assert (n > 0); - - while (mark->offset < n) { - /* jump to end of prev */ - n -= mark->offset + 1; - mark->index -= mark->offset + 1; - mark->property = MARK_PREV_LIST_PTR (mark); - mark->offset = MARK_CURRENT_PROPERTY (mark)->length - 1; - } - - /* and the rest */ - mark->index -= n; - mark->offset -= n; -} - -static GtkPropertyMark -find_mark (GtkText* text, guint mark_position) -{ - return find_mark_near (text, mark_position, &text->point); -} - -/* - * You can also start from the end, what a drag. - */ -static GtkPropertyMark -find_mark_near (GtkText* text, guint mark_position, const GtkPropertyMark* near) -{ - gint diffa; - gint diffb; - - GtkPropertyMark mark; - - if (!near) - diffa = mark_position + 1; - else - diffa = mark_position - near->index; - - diffb = mark_position; - - if (diffa < 0) - diffa = -diffa; - - if (diffa <= diffb) - { - mark = *near; - } - else - { - mark.index = 0; - mark.property = text->text_properties; - mark.offset = 0; - } - - move_mark_n (&mark, mark_position - mark.index); - - return mark; -} - -/* This routine must be called with scroll == FALSE, only when - * point is at least partially on screen - */ - -static void -find_line_containing_point (GtkText* text, guint point, - gboolean scroll) -{ - GList* cache; - gint height; - - text->current_line = NULL; - - TEXT_SHOW (text); - - /* Scroll backwards until the point is on screen - */ - while (CACHE_DATA(text->line_start_cache).start.index > point) - scroll_int (text, - LINE_HEIGHT(CACHE_DATA(text->line_start_cache))); - - /* Now additionally try to make sure that the point is fully on screen - */ - if (scroll) - { - while (text->first_cut_pixels != 0 && - text->line_start_cache->next && - CACHE_DATA(text->line_start_cache->next).start.index > point) - scroll_int (text, - LINE_HEIGHT(CACHE_DATA(text->line_start_cache->next))); - } - - gdk_drawable_get_size (text->text_area, NULL, &height); - - for (cache = text->line_start_cache; cache; cache = cache->next) - { - guint lph; - - if (CACHE_DATA(cache).end.index >= point || - LAST_INDEX(text, CACHE_DATA(cache).end)) - { - text->current_line = cache; /* LOOK HERE, this proc has an - * important side effect. */ - return; - } - - TEXT_SHOW_LINE (text, cache, "cache"); - - if (cache->next == NULL) - fetch_lines_forward (text, 1); - - if (scroll) - { - lph = pixel_height_of (text, cache->next); - - /* Scroll the bottom of the line is on screen, or until - * the line is the first onscreen line. - */ - while (cache->next != text->line_start_cache && lph > height) - { - TEXT_SHOW_LINE (text, cache, "cache"); - TEXT_SHOW_LINE (text, cache->next, "cache->next"); - scroll_int (text, LINE_HEIGHT(CACHE_DATA(cache->next))); - lph = pixel_height_of (text, cache->next); - } - } - } - - g_assert_not_reached (); /* Must set text->current_line here */ -} - -static guint -pixel_height_of (GtkText* text, GList* cache_line) -{ - gint pixels = - text->first_cut_pixels; - GList *cache = text->line_start_cache; - - while (TRUE) { - pixels += LINE_HEIGHT (CACHE_DATA(cache)); - - if (cache->data == cache_line->data) - break; - - cache = cache->next; - } - - return pixels; -} - -/**********************************************************************/ -/* Search and Placement */ -/**********************************************************************/ - -static gint -find_char_width (GtkText* text, const GtkPropertyMark *mark, const TabStopMark *tab_mark) -{ - GdkWChar ch; - gint16* char_widths; - - if (LAST_INDEX (text, *mark)) - return 0; - - ch = GTK_TEXT_INDEX (text, mark->index); - char_widths = MARK_CURRENT_TEXT_FONT (text, mark)->char_widths; - - if (ch == '\t') - { - return tab_mark->to_next_tab * char_widths[' ']; - } - else if (ch < 256) - { - return char_widths[ch]; - } - else - { - return gdk_char_width_wc(MARK_CURRENT_TEXT_FONT(text, mark)->gdk_font, ch); - } -} - -static void -advance_tab_mark (GtkText* text, TabStopMark* tab_mark, GdkWChar ch) -{ - if (tab_mark->to_next_tab == 1 || ch == '\t') - { - if (tab_mark->tab_stops->next) - { - tab_mark->tab_stops = tab_mark->tab_stops->next; - tab_mark->to_next_tab = (gintptr) tab_mark->tab_stops->data; - } - else - { - tab_mark->to_next_tab = text->default_tab_width; - } - } - else - { - tab_mark->to_next_tab -= 1; - } -} - -static void -advance_tab_mark_n (GtkText* text, TabStopMark* tab_mark, gint n) - /* No tabs! */ -{ - while (n--) - advance_tab_mark (text, tab_mark, 0); -} - -static void -find_cursor_at_line (GtkText* text, const LineParams* start_line, gint pixel_height) -{ - GdkWChar ch; - - GtkPropertyMark mark = start_line->start; - TabStopMark tab_mark = start_line->tab_cont.tab_start; - gint pixel_width = LINE_START_PIXEL (*start_line); - - while (mark.index < text->cursor_mark.index) - { - pixel_width += find_char_width (text, &mark, &tab_mark); - - advance_tab_mark (text, &tab_mark, GTK_TEXT_INDEX(text, mark.index)); - advance_mark (&mark); - } - - text->cursor_pos_x = pixel_width; - text->cursor_pos_y = pixel_height; - text->cursor_char_offset = start_line->font_descent; - text->cursor_mark = mark; - - ch = LAST_INDEX (text, mark) ? - LINE_DELIM : GTK_TEXT_INDEX (text, mark.index); - - if ((text->use_wchar) ? gdk_iswspace (ch) : isspace (ch)) - text->cursor_char = 0; - else - text->cursor_char = ch; -} - -static void -find_cursor (GtkText* text, gboolean scroll) -{ - if (gtk_widget_get_realized (GTK_WIDGET (text))) - { - find_line_containing_point (text, text->cursor_mark.index, scroll); - - if (text->current_line) - find_cursor_at_line (text, - &CACHE_DATA(text->current_line), - pixel_height_of(text, text->current_line)); - } - - GTK_OLD_EDITABLE (text)->current_pos = text->cursor_mark.index; -} - -static void -find_mouse_cursor_at_line (GtkText *text, const LineParams* lp, - guint line_pixel_height, - gint button_x) -{ - GtkPropertyMark mark = lp->start; - TabStopMark tab_mark = lp->tab_cont.tab_start; - - gint char_width = find_char_width(text, &mark, &tab_mark); - gint pixel_width = LINE_START_PIXEL (*lp) + (char_width+1)/2; - - text->cursor_pos_y = line_pixel_height; - - for (;;) - { - GdkWChar ch = LAST_INDEX (text, mark) ? - LINE_DELIM : GTK_TEXT_INDEX (text, mark.index); - - if (button_x < pixel_width || mark.index == lp->end.index) - { - text->cursor_pos_x = pixel_width - (char_width+1)/2; - text->cursor_mark = mark; - text->cursor_char_offset = lp->font_descent; - - if ((text->use_wchar) ? gdk_iswspace (ch) : isspace (ch)) - text->cursor_char = 0; - else - text->cursor_char = ch; - - break; - } - - advance_tab_mark (text, &tab_mark, ch); - advance_mark (&mark); - - pixel_width += char_width/2; - - char_width = find_char_width (text, &mark, &tab_mark); - - pixel_width += (char_width+1)/2; - } -} - -static void -find_mouse_cursor (GtkText* text, gint x, gint y) -{ - gint pixel_height; - GList* cache = text->line_start_cache; - - g_assert (cache); - - pixel_height = - text->first_cut_pixels; - - for (; cache; cache = cache->next) - { - pixel_height += LINE_HEIGHT(CACHE_DATA(cache)); - - if (y < pixel_height || !cache->next) - { - find_mouse_cursor_at_line (text, &CACHE_DATA(cache), pixel_height, x); - - find_cursor (text, FALSE); - - return; - } - } -} - -/**********************************************************************/ -/* Cache Manager */ -/**********************************************************************/ - -static void -free_cache (GtkText* text) -{ - GList* cache = text->line_start_cache; - - if (cache) - { - while (cache->prev) - cache = cache->prev; - - text->line_start_cache = cache; - } - - for (; cache; cache = cache->next) - g_slice_free (LineParams, cache->data); - - g_list_free (text->line_start_cache); - - text->line_start_cache = NULL; -} - -static GList* -remove_cache_line (GtkText* text, GList* member) -{ - GList *list; - - if (member == NULL) - return NULL; - - if (member == text->line_start_cache) - text->line_start_cache = text->line_start_cache->next; - - if (member->prev) - member->prev->next = member->next; - - if (member->next) - member->next->prev = member->prev; - - list = member->next; - - g_slice_free (LineParams, member->data); - g_list_free_1 (member); - - return list; -} - -/**********************************************************************/ -/* Key Motion */ -/**********************************************************************/ - -static void -move_cursor_buffer_ver (GtkText *text, int dir) -{ - undraw_cursor (text, FALSE); - - if (dir > 0) - { - scroll_int (text, text->vadj->upper); - text->cursor_mark = find_this_line_start_mark (text, - TEXT_LENGTH (text), - &text->cursor_mark); - } - else - { - scroll_int (text, - text->vadj->value); - text->cursor_mark = find_this_line_start_mark (text, - 0, - &text->cursor_mark); - } - - find_cursor (text, TRUE); - draw_cursor (text, FALSE); -} - -static void -move_cursor_page_ver (GtkText *text, int dir) -{ - scroll_int (text, dir * text->vadj->page_increment); -} - -static void -move_cursor_ver (GtkText *text, int count) -{ - gint i; - GtkPropertyMark mark; - gint offset; - - mark = find_this_line_start_mark (text, text->cursor_mark.index, &text->cursor_mark); - offset = text->cursor_mark.index - mark.index; - - if (offset > text->cursor_virtual_x) - text->cursor_virtual_x = offset; - - if (count < 0) - { - if (mark.index == 0) - return; - - decrement_mark (&mark); - mark = find_this_line_start_mark (text, mark.index, &mark); - } - else - { - mark = text->cursor_mark; - - while (!LAST_INDEX(text, mark) && GTK_TEXT_INDEX(text, mark.index) != LINE_DELIM) - advance_mark (&mark); - - if (LAST_INDEX(text, mark)) - return; - - advance_mark (&mark); - } - - for (i=0; i < text->cursor_virtual_x; i += 1, advance_mark(&mark)) - if (LAST_INDEX(text, mark) || - GTK_TEXT_INDEX(text, mark.index) == LINE_DELIM) - break; - - undraw_cursor (text, FALSE); - - text->cursor_mark = mark; - - find_cursor (text, TRUE); - - draw_cursor (text, FALSE); -} - -static void -move_cursor_hor (GtkText *text, int count) -{ - /* count should be +-1. */ - if ( (count > 0 && text->cursor_mark.index + count > TEXT_LENGTH(text)) || - (count < 0 && text->cursor_mark.index < (- count)) || - (count == 0) ) - return; - - text->cursor_virtual_x = 0; - - undraw_cursor (text, FALSE); - - move_mark_n (&text->cursor_mark, count); - - find_cursor (text, TRUE); - - draw_cursor (text, FALSE); -} - -static void -gtk_text_move_cursor (GtkOldEditable *old_editable, - gint x, - gint y) -{ - if (x > 0) - { - while (x-- != 0) - move_cursor_hor (GTK_TEXT (old_editable), 1); - } - else if (x < 0) - { - while (x++ != 0) - move_cursor_hor (GTK_TEXT (old_editable), -1); - } - - if (y > 0) - { - while (y-- != 0) - move_cursor_ver (GTK_TEXT (old_editable), 1); - } - else if (y < 0) - { - while (y++ != 0) - move_cursor_ver (GTK_TEXT (old_editable), -1); - } -} - -static void -gtk_text_move_forward_character (GtkText *text) -{ - move_cursor_hor (text, 1); -} - -static void -gtk_text_move_backward_character (GtkText *text) -{ - move_cursor_hor (text, -1); -} - -static void -gtk_text_move_next_line (GtkText *text) -{ - move_cursor_ver (text, 1); -} - -static void -gtk_text_move_previous_line (GtkText *text) -{ - move_cursor_ver (text, -1); -} - -static void -gtk_text_move_word (GtkOldEditable *old_editable, - gint n) -{ - if (n > 0) - { - while (n-- != 0) - gtk_text_move_forward_word (GTK_TEXT (old_editable)); - } - else if (n < 0) - { - while (n++ != 0) - gtk_text_move_backward_word (GTK_TEXT (old_editable)); - } -} - -static void -gtk_text_move_forward_word (GtkText *text) -{ - text->cursor_virtual_x = 0; - - undraw_cursor (text, FALSE); - - if (text->use_wchar) - { - while (!LAST_INDEX (text, text->cursor_mark) && - !gdk_iswalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index))) - advance_mark (&text->cursor_mark); - - while (!LAST_INDEX (text, text->cursor_mark) && - gdk_iswalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index))) - advance_mark (&text->cursor_mark); - } - else - { - while (!LAST_INDEX (text, text->cursor_mark) && - !isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index))) - advance_mark (&text->cursor_mark); - - while (!LAST_INDEX (text, text->cursor_mark) && - isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index))) - advance_mark (&text->cursor_mark); - } - - find_cursor (text, TRUE); - draw_cursor (text, FALSE); -} - -static void -gtk_text_move_backward_word (GtkText *text) -{ - text->cursor_virtual_x = 0; - - undraw_cursor (text, FALSE); - - if (text->use_wchar) - { - while ((text->cursor_mark.index > 0) && - !gdk_iswalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index-1))) - decrement_mark (&text->cursor_mark); - - while ((text->cursor_mark.index > 0) && - gdk_iswalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index-1))) - decrement_mark (&text->cursor_mark); - } - else - { - while ((text->cursor_mark.index > 0) && - !isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index-1))) - decrement_mark (&text->cursor_mark); - - while ((text->cursor_mark.index > 0) && - isalnum (GTK_TEXT_INDEX(text, text->cursor_mark.index-1))) - decrement_mark (&text->cursor_mark); - } - - find_cursor (text, TRUE); - draw_cursor (text, FALSE); -} - -static void -gtk_text_move_page (GtkOldEditable *old_editable, - gint x, - gint y) -{ - if (y != 0) - scroll_int (GTK_TEXT (old_editable), - y * GTK_TEXT(old_editable)->vadj->page_increment); -} - -static void -gtk_text_move_to_row (GtkOldEditable *old_editable, - gint row) -{ -} - -static void -gtk_text_move_to_column (GtkOldEditable *old_editable, - gint column) -{ - GtkText *text; - - text = GTK_TEXT (old_editable); - - text->cursor_virtual_x = 0; /* FIXME */ - - undraw_cursor (text, FALSE); - - /* Move to the beginning of the line */ - while ((text->cursor_mark.index > 0) && - (GTK_TEXT_INDEX (text, text->cursor_mark.index - 1) != LINE_DELIM)) - decrement_mark (&text->cursor_mark); - - while (!LAST_INDEX (text, text->cursor_mark) && - (GTK_TEXT_INDEX (text, text->cursor_mark.index) != LINE_DELIM)) - { - if (column > 0) - column--; - else if (column == 0) - break; - - advance_mark (&text->cursor_mark); - } - - find_cursor (text, TRUE); - draw_cursor (text, FALSE); -} - -static void -gtk_text_move_beginning_of_line (GtkText *text) -{ - gtk_text_move_to_column (GTK_OLD_EDITABLE (text), 0); - -} - -static void -gtk_text_move_end_of_line (GtkText *text) -{ - gtk_text_move_to_column (GTK_OLD_EDITABLE (text), -1); -} - -static void -gtk_text_kill_char (GtkOldEditable *old_editable, - gint direction) -{ - GtkText *text; - - text = GTK_TEXT (old_editable); - - if (old_editable->selection_start_pos != old_editable->selection_end_pos) - gtk_editable_delete_selection (GTK_EDITABLE (old_editable)); - else - { - if (direction >= 0) - { - if (text->point.index + 1 <= TEXT_LENGTH (text)) - gtk_editable_delete_text (GTK_EDITABLE (old_editable), text->point.index, text->point.index + 1); - } - else - { - if (text->point.index > 0) - gtk_editable_delete_text (GTK_EDITABLE (old_editable), text->point.index - 1, text->point.index); - } - } -} - -static void -gtk_text_delete_forward_character (GtkText *text) -{ - gtk_text_kill_char (GTK_OLD_EDITABLE (text), 1); -} - -static void -gtk_text_delete_backward_character (GtkText *text) -{ - gtk_text_kill_char (GTK_OLD_EDITABLE (text), -1); -} - -static void -gtk_text_kill_word (GtkOldEditable *old_editable, - gint direction) -{ - if (old_editable->selection_start_pos != old_editable->selection_end_pos) - gtk_editable_delete_selection (GTK_EDITABLE (old_editable)); - else - { - gint old_pos = old_editable->current_pos; - if (direction >= 0) - { - gtk_text_move_word (old_editable, 1); - gtk_editable_delete_text (GTK_EDITABLE (old_editable), old_pos, old_editable->current_pos); - } - else - { - gtk_text_move_word (old_editable, -1); - gtk_editable_delete_text (GTK_EDITABLE (old_editable), old_editable->current_pos, old_pos); - } - } -} - -static void -gtk_text_delete_forward_word (GtkText *text) -{ - gtk_text_kill_word (GTK_OLD_EDITABLE (text), 1); -} - -static void -gtk_text_delete_backward_word (GtkText *text) -{ - gtk_text_kill_word (GTK_OLD_EDITABLE (text), -1); -} - -static void -gtk_text_kill_line (GtkOldEditable *old_editable, - gint direction) -{ - gint old_pos = old_editable->current_pos; - if (direction >= 0) - { - gtk_text_move_to_column (old_editable, -1); - gtk_editable_delete_text (GTK_EDITABLE (old_editable), old_pos, old_editable->current_pos); - } - else - { - gtk_text_move_to_column (old_editable, 0); - gtk_editable_delete_text (GTK_EDITABLE (old_editable), old_editable->current_pos, old_pos); - } -} - -static void -gtk_text_delete_line (GtkText *text) -{ - gtk_text_move_to_column (GTK_OLD_EDITABLE (text), 0); - gtk_text_kill_line (GTK_OLD_EDITABLE (text), 1); -} - -static void -gtk_text_delete_to_line_end (GtkText *text) -{ - gtk_text_kill_line (GTK_OLD_EDITABLE (text), 1); -} - -static void -gtk_text_select_word (GtkText *text, guint32 time) -{ - gint start_pos; - gint end_pos; - - GtkOldEditable *old_editable; - old_editable = GTK_OLD_EDITABLE (text); - - gtk_text_move_backward_word (text); - start_pos = text->cursor_mark.index; - - gtk_text_move_forward_word (text); - end_pos = text->cursor_mark.index; - - old_editable->has_selection = TRUE; - gtk_text_set_selection (old_editable, start_pos, end_pos); - gtk_old_editable_claim_selection (old_editable, start_pos != end_pos, time); -} - -static void -gtk_text_select_line (GtkText *text, guint32 time) -{ - gint start_pos; - gint end_pos; - - GtkOldEditable *old_editable; - old_editable = GTK_OLD_EDITABLE (text); - - gtk_text_move_beginning_of_line (text); - start_pos = text->cursor_mark.index; - - gtk_text_move_end_of_line (text); - gtk_text_move_forward_character (text); - end_pos = text->cursor_mark.index; - - old_editable->has_selection = TRUE; - gtk_text_set_selection (old_editable, start_pos, end_pos); - gtk_old_editable_claim_selection (old_editable, start_pos != end_pos, time); -} - -/**********************************************************************/ -/* Scrolling */ -/**********************************************************************/ - -static void -adjust_adj (GtkText* text, GtkAdjustment* adj) -{ - gint height; - - gdk_drawable_get_size (text->text_area, NULL, &height); - - adj->step_increment = MIN (adj->upper, SCROLL_PIXELS); - adj->page_increment = MIN (adj->upper, height - KEY_SCROLL_PIXELS); - adj->page_size = MIN (adj->upper, height); - adj->value = MIN (adj->value, adj->upper - adj->page_size); - adj->value = MAX (adj->value, 0.0); - - gtk_signal_emit_by_name (GTK_OBJECT (adj), "changed"); -} - -static gint -set_vertical_scroll_iterator (GtkText* text, LineParams* lp, void* data) -{ - SetVerticalScrollData *svdata = (SetVerticalScrollData *) data; - - if ((text->first_line_start_index >= lp->start.index) && - (text->first_line_start_index <= lp->end.index)) - { - svdata->mark = lp->start; - - if (text->first_line_start_index == lp->start.index) - { - text->first_onscreen_ver_pixel = svdata->pixel_height + text->first_cut_pixels; - } - else - { - text->first_onscreen_ver_pixel = svdata->pixel_height; - text->first_cut_pixels = 0; - } - - text->vadj->value = text->first_onscreen_ver_pixel; - } - - svdata->pixel_height += LINE_HEIGHT (*lp); - - return FALSE; -} - -static gint -set_vertical_scroll_find_iterator (GtkText* text, LineParams* lp, void* data) -{ - SetVerticalScrollData *svdata = (SetVerticalScrollData *) data; - gint return_val; - - if (svdata->pixel_height <= (gint) text->vadj->value && - svdata->pixel_height + LINE_HEIGHT(*lp) > (gint) text->vadj->value) - { - svdata->mark = lp->start; - - text->first_cut_pixels = (gint)text->vadj->value - svdata->pixel_height; - text->first_onscreen_ver_pixel = svdata->pixel_height; - text->first_line_start_index = lp->start.index; - - return_val = TRUE; - } - else - { - svdata->pixel_height += LINE_HEIGHT (*lp); - - return_val = FALSE; - } - - return return_val; -} - -static GtkPropertyMark -set_vertical_scroll (GtkText* text) -{ - GtkPropertyMark mark = find_mark (text, 0); - SetVerticalScrollData data; - gint height; - gint orig_value; - - data.pixel_height = 0; - line_params_iterate (text, &mark, NULL, FALSE, &data, set_vertical_scroll_iterator); - - text->vadj->upper = data.pixel_height; - orig_value = (gint) text->vadj->value; - - gdk_drawable_get_size (text->text_area, NULL, &height); - - text->vadj->step_increment = MIN (text->vadj->upper, SCROLL_PIXELS); - text->vadj->page_increment = MIN (text->vadj->upper, height - KEY_SCROLL_PIXELS); - text->vadj->page_size = MIN (text->vadj->upper, height); - text->vadj->value = MIN (text->vadj->value, text->vadj->upper - text->vadj->page_size); - text->vadj->value = MAX (text->vadj->value, 0.0); - - text->last_ver_value = (gint)text->vadj->value; - - gtk_signal_emit_by_name (GTK_OBJECT (text->vadj), "changed"); - - if (text->vadj->value != orig_value) - { - /* We got clipped, and don't really know which line to put first. */ - data.pixel_height = 0; - data.last_didnt_wrap = TRUE; - - line_params_iterate (text, &mark, NULL, - FALSE, &data, - set_vertical_scroll_find_iterator); - } - - return data.mark; -} - -static void -scroll_int (GtkText* text, gint diff) -{ - gdouble upper; - - text->vadj->value += diff; - - upper = text->vadj->upper - text->vadj->page_size; - text->vadj->value = MIN (text->vadj->value, upper); - text->vadj->value = MAX (text->vadj->value, 0.0); - - gtk_signal_emit_by_name (GTK_OBJECT (text->vadj), "value-changed"); -} - -static void -process_exposes (GtkText *text) -{ - GdkEvent *event; - - /* Make sure graphics expose events are processed before scrolling - * again */ - - while ((event = gdk_event_get_graphics_expose (text->text_area)) != NULL) - { - gtk_widget_send_expose (GTK_WIDGET (text), event); - if (event->expose.count == 0) - { - gdk_event_free (event); - break; - } - gdk_event_free (event); - } -} - -static gint last_visible_line_height (GtkText* text) -{ - GList *cache = text->line_start_cache; - gint height; - - gdk_drawable_get_size (text->text_area, NULL, &height); - - for (; cache->next; cache = cache->next) - if (pixel_height_of(text, cache->next) > height) - break; - - if (cache) - return pixel_height_of(text, cache) - 1; - else - return 0; -} - -static gint first_visible_line_height (GtkText* text) -{ - if (text->first_cut_pixels) - return pixel_height_of(text, text->line_start_cache) + 1; - else - return 1; -} - -static void -scroll_down (GtkText* text, gint diff0) -{ - GdkRectangle rect; - gint real_diff = 0; - gint width, height; - - text->first_onscreen_ver_pixel += diff0; - - while (diff0-- > 0) - { - g_assert (text->line_start_cache); - - if (text->first_cut_pixels < LINE_HEIGHT(CACHE_DATA(text->line_start_cache)) - 1) - { - text->first_cut_pixels += 1; - } - else - { - text->first_cut_pixels = 0; - - text->line_start_cache = text->line_start_cache->next; - - text->first_line_start_index = - CACHE_DATA(text->line_start_cache).start.index; - - if (!text->line_start_cache->next) - fetch_lines_forward (text, 1); - } - - real_diff += 1; - } - - gdk_drawable_get_size (text->text_area, &width, &height); - if (height > real_diff) - gdk_draw_drawable (text->text_area, - text->gc, - text->text_area, - 0, - real_diff, - 0, - 0, - width, - height - real_diff); - - rect.x = 0; - rect.y = MAX (0, height - real_diff); - rect.width = width; - rect.height = MIN (height, real_diff); - - expose_text (text, &rect, FALSE); - gtk_text_draw_focus ( (GtkWidget *) text); - - if (text->current_line) - { - gint cursor_min; - - text->cursor_pos_y -= real_diff; - cursor_min = drawn_cursor_min(text); - - if (cursor_min < 0) - find_mouse_cursor (text, text->cursor_pos_x, - first_visible_line_height (text)); - } - - if (height > real_diff) - process_exposes (text); -} - -static void -scroll_up (GtkText* text, gint diff0) -{ - gint real_diff = 0; - GdkRectangle rect; - gint width, height; - - text->first_onscreen_ver_pixel += diff0; - - while (diff0++ < 0) - { - g_assert (text->line_start_cache); - - if (text->first_cut_pixels > 0) - { - text->first_cut_pixels -= 1; - } - else - { - if (!text->line_start_cache->prev) - fetch_lines_backward (text); - - text->line_start_cache = text->line_start_cache->prev; - - text->first_line_start_index = - CACHE_DATA(text->line_start_cache).start.index; - - text->first_cut_pixels = LINE_HEIGHT(CACHE_DATA(text->line_start_cache)) - 1; - } - - real_diff += 1; - } - - gdk_drawable_get_size (text->text_area, &width, &height); - if (height > real_diff) - gdk_draw_drawable (text->text_area, - text->gc, - text->text_area, - 0, - 0, - 0, - real_diff, - width, - height - real_diff); - - rect.x = 0; - rect.y = 0; - rect.width = width; - rect.height = MIN (height, real_diff); - - expose_text (text, &rect, FALSE); - gtk_text_draw_focus ( (GtkWidget *) text); - - if (text->current_line) - { - gint cursor_max; - gint height; - - text->cursor_pos_y += real_diff; - cursor_max = drawn_cursor_max(text); - gdk_drawable_get_size (text->text_area, NULL, &height); - - if (cursor_max >= height) - find_mouse_cursor (text, text->cursor_pos_x, - last_visible_line_height (text)); - } - - if (height > real_diff) - process_exposes (text); -} - -/**********************************************************************/ -/* Display Code */ -/**********************************************************************/ - -/* Assumes mark starts a line. Calculates the height, width, and - * displayable character count of a single DISPLAYABLE line. That - * means that in line-wrap mode, this does may not compute the - * properties of an entire line. */ -static LineParams -find_line_params (GtkText* text, - const GtkPropertyMark* mark, - const PrevTabCont *tab_cont, - PrevTabCont *next_cont) -{ - LineParams lp; - TabStopMark tab_mark = tab_cont->tab_start; - guint max_display_pixels; - GdkWChar ch; - gint ch_width; - GdkFont *font; - - gdk_drawable_get_size (text->text_area, (gint*) &max_display_pixels, NULL); - max_display_pixels -= LINE_WRAP_ROOM; - - lp.wraps = 0; - lp.tab_cont = *tab_cont; - lp.start = *mark; - lp.end = *mark; - lp.pixel_width = tab_cont->pixel_offset; - lp.displayable_chars = 0; - lp.font_ascent = 0; - lp.font_descent = 0; - - init_tab_cont (text, next_cont); - - while (!LAST_INDEX(text, lp.end)) - { - g_assert (lp.end.property); - - ch = GTK_TEXT_INDEX (text, lp.end.index); - font = MARK_CURRENT_FONT (text, &lp.end); - - if (ch == LINE_DELIM) - { - /* Newline doesn't count in computation of line height, even - * if its in a bigger font than the rest of the line. Unless, - * of course, there are no other characters. */ - - if (!lp.font_ascent && !lp.font_descent) - { - lp.font_ascent = font->ascent; - lp.font_descent = font->descent; - } - - lp.tab_cont_next = *next_cont; - - return lp; - } - - ch_width = find_char_width (text, &lp.end, &tab_mark); - - if ((ch_width + lp.pixel_width > max_display_pixels) && - (lp.end.index > lp.start.index)) - { - lp.wraps = 1; - - if (text->line_wrap) - { - next_cont->tab_start = tab_mark; - next_cont->pixel_offset = 0; - - if (ch == '\t') - { - /* Here's the tough case, a tab is wrapping. */ - gint pixels_avail = max_display_pixels - lp.pixel_width; - gint space_width = MARK_CURRENT_TEXT_FONT(text, &lp.end)->char_widths[' ']; - gint spaces_avail = pixels_avail / space_width; - - if (spaces_avail == 0) - { - decrement_mark (&lp.end); - } - else - { - advance_tab_mark (text, &next_cont->tab_start, '\t'); - next_cont->pixel_offset = space_width * (tab_mark.to_next_tab - - spaces_avail); - lp.displayable_chars += 1; - } - } - else - { - if (text->word_wrap) - { - GtkPropertyMark saved_mark = lp.end; - guint saved_characters = lp.displayable_chars; - - lp.displayable_chars += 1; - - if (text->use_wchar) - { - while (!gdk_iswspace (GTK_TEXT_INDEX (text, lp.end.index)) && - (lp.end.index > lp.start.index)) - { - decrement_mark (&lp.end); - lp.displayable_chars -= 1; - } - } - else - { - while (!isspace(GTK_TEXT_INDEX (text, lp.end.index)) && - (lp.end.index > lp.start.index)) - { - decrement_mark (&lp.end); - lp.displayable_chars -= 1; - } - } - - /* If whole line is one word, revert to char wrapping */ - if (lp.end.index == lp.start.index) - { - lp.end = saved_mark; - lp.displayable_chars = saved_characters; - decrement_mark (&lp.end); - } - } - else - { - /* Don't include this character, it will wrap. */ - decrement_mark (&lp.end); - } - } - - lp.tab_cont_next = *next_cont; - - return lp; - } - } - else - { - lp.displayable_chars += 1; - } - - lp.font_ascent = MAX (font->ascent, lp.font_ascent); - lp.font_descent = MAX (font->descent, lp.font_descent); - lp.pixel_width += ch_width; - - advance_mark(&lp.end); - advance_tab_mark (text, &tab_mark, ch); - } - - if (LAST_INDEX(text, lp.start)) - { - /* Special case, empty last line. */ - font = MARK_CURRENT_FONT (text, &lp.end); - - lp.font_ascent = font->ascent; - lp.font_descent = font->descent; - } - - lp.tab_cont_next = *next_cont; - - return lp; -} - -static void -expand_scratch_buffer (GtkText* text, guint len) -{ - if (len >= text->scratch_buffer_len) - { - guint i = 1; - - while (i <= len && i < MIN_GAP_SIZE) i <<= 1; - - if (text->use_wchar) - { - if (text->scratch_buffer.wc) - text->scratch_buffer.wc = g_new (GdkWChar, i); - else - text->scratch_buffer.wc = g_realloc (text->scratch_buffer.wc, - i*sizeof (GdkWChar)); - } - else - { - if (text->scratch_buffer.ch) - text->scratch_buffer.ch = g_new (guchar, i); - else - text->scratch_buffer.ch = g_realloc (text->scratch_buffer.ch, i); - } - - text->scratch_buffer_len = i; - } -} - -/* Side effect: modifies text->gc - */ -static void -draw_bg_rect (GtkText* text, GtkPropertyMark *mark, - gint x, gint y, gint width, gint height, - gboolean already_cleared) -{ - GtkOldEditable *old_editable = GTK_OLD_EDITABLE (text); - - if ((mark->index >= MIN(old_editable->selection_start_pos, old_editable->selection_end_pos) && - mark->index < MAX(old_editable->selection_start_pos, old_editable->selection_end_pos))) - { - gtk_paint_flat_box(GTK_WIDGET(text)->style, text->text_area, - old_editable->has_selection ? - GTK_STATE_SELECTED : GTK_STATE_ACTIVE, - GTK_SHADOW_NONE, - NULL, GTK_WIDGET(text), "text", - x, y, width, height); - } - else if (!gdk_color_equal(MARK_CURRENT_BACK (text, mark), - >K_WIDGET(text)->style->base[gtk_widget_get_state (GTK_WIDGET (text))])) - { - gdk_gc_set_foreground (text->gc, MARK_CURRENT_BACK (text, mark)); - - gdk_draw_rectangle (text->text_area, - text->gc, - TRUE, x, y, width, height); - } - else if (GTK_WIDGET (text)->style->bg_pixmap[GTK_STATE_NORMAL]) - { - GdkRectangle rect; - - rect.x = x; - rect.y = y; - rect.width = width; - rect.height = height; - - clear_area (text, &rect); - } - else if (!already_cleared) - gdk_window_clear_area (text->text_area, x, y, width, height); -} - -static void -draw_line (GtkText* text, - gint pixel_start_height, - LineParams* lp) -{ - GdkGCValues gc_values; - gint i; - gint len = 0; - guint running_offset = lp->tab_cont.pixel_offset; - union { GdkWChar *wc; guchar *ch; } buffer; - GdkGC *fg_gc; - - GtkOldEditable *old_editable = GTK_OLD_EDITABLE (text); - - guint selection_start_pos = MIN (old_editable->selection_start_pos, old_editable->selection_end_pos); - guint selection_end_pos = MAX (old_editable->selection_start_pos, old_editable->selection_end_pos); - - GtkPropertyMark mark = lp->start; - TabStopMark tab_mark = lp->tab_cont.tab_start; - gint pixel_height = pixel_start_height + lp->font_ascent; - guint chars = lp->displayable_chars; - - /* First provide a contiguous segment of memory. This makes reading - * the code below *much* easier, and only incurs the cost of copying - * when the line being displayed spans the gap. */ - if (mark.index <= text->gap_position && - mark.index + chars > text->gap_position) - { - expand_scratch_buffer (text, chars); - - if (text->use_wchar) - { - for (i = 0; i < chars; i += 1) - text->scratch_buffer.wc[i] = GTK_TEXT_INDEX(text, mark.index + i); - buffer.wc = text->scratch_buffer.wc; - } - else - { - for (i = 0; i < chars; i += 1) - text->scratch_buffer.ch[i] = GTK_TEXT_INDEX(text, mark.index + i); - buffer.ch = text->scratch_buffer.ch; - } - } - else - { - if (text->use_wchar) - { - if (mark.index >= text->gap_position) - buffer.wc = text->text.wc + mark.index + text->gap_size; - else - buffer.wc = text->text.wc + mark.index; - } - else - { - if (mark.index >= text->gap_position) - buffer.ch = text->text.ch + mark.index + text->gap_size; - else - buffer.ch = text->text.ch + mark.index; - } - } - - - if (running_offset > 0) - { - draw_bg_rect (text, &mark, 0, pixel_start_height, running_offset, - LINE_HEIGHT (*lp), TRUE); - } - - while (chars > 0) - { - len = 0; - if ((text->use_wchar && buffer.wc[0] != '\t') || - (!text->use_wchar && buffer.ch[0] != '\t')) - { - union { GdkWChar *wc; guchar *ch; } next_tab; - gint pixel_width; - GdkFont *font; - - next_tab.wc = NULL; - if (text->use_wchar) - for (i=0; ilength - mark.offset, chars); - - if (text->use_wchar) - { - if (next_tab.wc) - len = MIN (len, next_tab.wc - buffer.wc); - } - else - { - if (next_tab.ch) - len = MIN (len, next_tab.ch - buffer.ch); - } - - if (mark.index < selection_start_pos) - len = MIN (len, selection_start_pos - mark.index); - else if (mark.index < selection_end_pos) - len = MIN (len, selection_end_pos - mark.index); - - font = MARK_CURRENT_FONT (text, &mark); - if (font->type == GDK_FONT_FONT) - { - gdk_gc_set_font (text->gc, font); - gdk_gc_get_values (text->gc, &gc_values); - if (text->use_wchar) - pixel_width = gdk_text_width_wc (gc_values.font, - buffer.wc, len); - else - pixel_width = gdk_text_width (gc_values.font, - (gchar *)buffer.ch, len); - } - else - { - if (text->use_wchar) - pixel_width = gdk_text_width_wc (font, buffer.wc, len); - else - pixel_width = gdk_text_width (font, (gchar *)buffer.ch, len); - } - - draw_bg_rect (text, &mark, running_offset, pixel_start_height, - pixel_width, LINE_HEIGHT (*lp), TRUE); - - if ((mark.index >= selection_start_pos) && - (mark.index < selection_end_pos)) - { - if (old_editable->has_selection) - fg_gc = GTK_WIDGET(text)->style->text_gc[GTK_STATE_SELECTED]; - else - fg_gc = GTK_WIDGET(text)->style->text_gc[GTK_STATE_ACTIVE]; - } - else - { - gdk_gc_set_foreground (text->gc, MARK_CURRENT_FORE (text, &mark)); - fg_gc = text->gc; - } - - if (text->use_wchar) - gdk_draw_text_wc (text->text_area, MARK_CURRENT_FONT (text, &mark), - fg_gc, - running_offset, - pixel_height, - buffer.wc, - len); - else - gdk_draw_text (text->text_area, MARK_CURRENT_FONT (text, &mark), - fg_gc, - running_offset, - pixel_height, - (gchar *)buffer.ch, - len); - - running_offset += pixel_width; - - advance_tab_mark_n (text, &tab_mark, len); - } - else - { - gint pixels_remaining; - gint space_width; - gint spaces_avail; - - len = 1; - - gdk_drawable_get_size (text->text_area, &pixels_remaining, NULL); - pixels_remaining -= (LINE_WRAP_ROOM + running_offset); - - space_width = MARK_CURRENT_TEXT_FONT(text, &mark)->char_widths[' ']; - - spaces_avail = pixels_remaining / space_width; - spaces_avail = MIN (spaces_avail, tab_mark.to_next_tab); - - draw_bg_rect (text, &mark, running_offset, pixel_start_height, - spaces_avail * space_width, LINE_HEIGHT (*lp), TRUE); - - running_offset += tab_mark.to_next_tab * - MARK_CURRENT_TEXT_FONT(text, &mark)->char_widths[' ']; - - advance_tab_mark (text, &tab_mark, '\t'); - } - - advance_mark_n (&mark, len); - if (text->use_wchar) - buffer.wc += len; - else - buffer.ch += len; - chars -= len; - } -} - -static void -draw_line_wrap (GtkText* text, guint height /* baseline height */) -{ - gint width; - GdkPixmap *bitmap; - gint bitmap_width; - gint bitmap_height; - - if (text->line_wrap) - { - bitmap = text->line_wrap_bitmap; - bitmap_width = line_wrap_width; - bitmap_height = line_wrap_height; - } - else - { - bitmap = text->line_arrow_bitmap; - bitmap_width = line_arrow_width; - bitmap_height = line_arrow_height; - } - - gdk_drawable_get_size (text->text_area, &width, NULL); - width -= LINE_WRAP_ROOM; - - gdk_gc_set_stipple (text->gc, - bitmap); - - gdk_gc_set_fill (text->gc, GDK_STIPPLED); - - gdk_gc_set_foreground (text->gc, >K_WIDGET (text)->style->text[GTK_STATE_NORMAL]); - - gdk_gc_set_ts_origin (text->gc, - width + 1, - height - bitmap_height - 1); - - gdk_draw_rectangle (text->text_area, - text->gc, - TRUE, - width + 1, - height - bitmap_height - 1 /* one pixel above the baseline. */, - bitmap_width, - bitmap_height); - - gdk_gc_set_ts_origin (text->gc, 0, 0); - - gdk_gc_set_fill (text->gc, GDK_SOLID); -} - -static void -undraw_cursor (GtkText* text, gint absolute) -{ - GtkOldEditable *old_editable = (GtkOldEditable *) text; - - TDEBUG (("in undraw_cursor\n")); - - if (absolute) - text->cursor_drawn_level = 0; - - if ((text->cursor_drawn_level ++ == 0) && - (old_editable->selection_start_pos == old_editable->selection_end_pos) && - GTK_WIDGET_DRAWABLE (text) && text->line_start_cache) - { - GdkFont* font; - - g_assert(text->cursor_mark.property); - - font = MARK_CURRENT_FONT(text, &text->cursor_mark); - - draw_bg_rect (text, &text->cursor_mark, - text->cursor_pos_x, - text->cursor_pos_y - text->cursor_char_offset - font->ascent, - 1, font->ascent + 1, FALSE); - - if (text->cursor_char) - { - if (font->type == GDK_FONT_FONT) - gdk_gc_set_font (text->gc, font); - - gdk_gc_set_foreground (text->gc, MARK_CURRENT_FORE (text, &text->cursor_mark)); - - gdk_draw_text_wc (text->text_area, font, - text->gc, - text->cursor_pos_x, - text->cursor_pos_y - text->cursor_char_offset, - &text->cursor_char, - 1); - } - } -} - -static gint -drawn_cursor_min (GtkText* text) -{ - GdkFont* font; - - g_assert(text->cursor_mark.property); - - font = MARK_CURRENT_FONT(text, &text->cursor_mark); - - return text->cursor_pos_y - text->cursor_char_offset - font->ascent; -} - -static gint -drawn_cursor_max (GtkText* text) -{ - g_assert(text->cursor_mark.property); - - return text->cursor_pos_y - text->cursor_char_offset; -} - -static void -draw_cursor (GtkText* text, gint absolute) -{ - GtkOldEditable *old_editable = (GtkOldEditable *)text; - - TDEBUG (("in draw_cursor\n")); - - if (absolute) - text->cursor_drawn_level = 1; - - if ((--text->cursor_drawn_level == 0) && - old_editable->editable && - (old_editable->selection_start_pos == old_editable->selection_end_pos) && - GTK_WIDGET_DRAWABLE (text) && text->line_start_cache) - { - GdkFont* font; - - g_assert (text->cursor_mark.property); - - font = MARK_CURRENT_FONT (text, &text->cursor_mark); - - gdk_gc_set_foreground (text->gc, >K_WIDGET (text)->style->text[GTK_STATE_NORMAL]); - - gdk_draw_line (text->text_area, text->gc, text->cursor_pos_x, - text->cursor_pos_y - text->cursor_char_offset, - text->cursor_pos_x, - text->cursor_pos_y - text->cursor_char_offset - font->ascent); - } -} - -static GdkGC * -create_bg_gc (GtkText *text) -{ - GdkGCValues values; - - values.tile = GTK_WIDGET (text)->style->bg_pixmap[GTK_STATE_NORMAL]; - values.fill = GDK_TILED; - - return gdk_gc_new_with_values (text->text_area, &values, - GDK_GC_FILL | GDK_GC_TILE); -} - -static void -clear_area (GtkText *text, GdkRectangle *area) -{ - GtkWidget *widget = GTK_WIDGET (text); - - if (text->bg_gc) - { - gint width, height; - - gdk_drawable_get_size (widget->style->bg_pixmap[GTK_STATE_NORMAL], &width, &height); - - gdk_gc_set_ts_origin (text->bg_gc, - (- text->first_onscreen_hor_pixel) % width, - (- text->first_onscreen_ver_pixel) % height); - - gdk_draw_rectangle (text->text_area, text->bg_gc, TRUE, - area->x, area->y, area->width, area->height); - } - else - gdk_window_clear_area (text->text_area, area->x, area->y, area->width, area->height); -} - -static void -expose_text (GtkText* text, GdkRectangle *area, gboolean cursor) -{ - GList *cache = text->line_start_cache; - gint pixels = - text->first_cut_pixels; - gint min_y = MAX (0, area->y); - gint max_y = MAX (0, area->y + area->height); - gint height; - - gdk_drawable_get_size (text->text_area, NULL, &height); - max_y = MIN (max_y, height); - - TDEBUG (("in expose x=%d y=%d w=%d h=%d\n", area->x, area->y, area->width, area->height)); - - clear_area (text, area); - - for (; pixels < height; cache = cache->next) - { - if (pixels < max_y && (pixels + (gint)LINE_HEIGHT(CACHE_DATA(cache))) >= min_y) - { - draw_line (text, pixels, &CACHE_DATA(cache)); - - if (CACHE_DATA(cache).wraps) - draw_line_wrap (text, pixels + CACHE_DATA(cache).font_ascent); - } - - if (cursor && gtk_widget_has_focus (GTK_WIDGET (text))) - { - if (CACHE_DATA(cache).start.index <= text->cursor_mark.index && - CACHE_DATA(cache).end.index >= text->cursor_mark.index) - { - /* We undraw and draw the cursor here to get the drawn - * level right ... FIXME - maybe the second parameter - * of draw_cursor should work differently - */ - undraw_cursor (text, FALSE); - draw_cursor (text, FALSE); - } - } - - pixels += LINE_HEIGHT(CACHE_DATA(cache)); - - if (!cache->next) - { - fetch_lines_forward (text, 1); - - if (!cache->next) - break; - } - } -} - -static void -gtk_text_update_text (GtkOldEditable *old_editable, - gint start_pos, - gint end_pos) -{ - GtkText *text = GTK_TEXT (old_editable); - - GList *cache = text->line_start_cache; - gint pixels = - text->first_cut_pixels; - GdkRectangle area; - gint width; - gint height; - - if (end_pos < 0) - end_pos = TEXT_LENGTH (text); - - if (end_pos < start_pos) - return; - - gdk_drawable_get_size (text->text_area, &width, &height); - area.x = 0; - area.y = -1; - area.width = width; - area.height = 0; - - TDEBUG (("in expose span start=%d stop=%d\n", start_pos, end_pos)); - - for (; pixels < height; cache = cache->next) - { - if (CACHE_DATA(cache).start.index < end_pos) - { - if (CACHE_DATA(cache).end.index >= start_pos) - { - if (area.y < 0) - area.y = MAX(0,pixels); - area.height = pixels + LINE_HEIGHT(CACHE_DATA(cache)) - area.y; - } - } - else - break; - - pixels += LINE_HEIGHT(CACHE_DATA(cache)); - - if (!cache->next) - { - fetch_lines_forward (text, 1); - - if (!cache->next) - break; - } - } - - if (area.y >= 0) - expose_text (text, &area, TRUE); -} - -static void -recompute_geometry (GtkText* text) -{ - GtkPropertyMark mark, start_mark; - GList *new_lines; - gint height; - gint width; - - free_cache (text); - - mark = start_mark = set_vertical_scroll (text); - - /* We need a real start of a line when calling fetch_lines(). - * not the start of a wrapped line. - */ - while (mark.index > 0 && - GTK_TEXT_INDEX (text, mark.index - 1) != LINE_DELIM) - decrement_mark (&mark); - - gdk_drawable_get_size (text->text_area, &width, &height); - - /* Fetch an entire line, to make sure that we get all the text - * we backed over above, in addition to enough text to fill up - * the space vertically - */ - - new_lines = fetch_lines (text, - &mark, - NULL, - FetchLinesCount, - 1); - - mark = CACHE_DATA (g_list_last (new_lines)).end; - if (!LAST_INDEX (text, mark)) - { - advance_mark (&mark); - - new_lines = g_list_concat (new_lines, - fetch_lines (text, - &mark, - NULL, - FetchLinesPixels, - height + text->first_cut_pixels)); - } - - /* Now work forward to the actual first onscreen line */ - - while (CACHE_DATA (new_lines).start.index < start_mark.index) - new_lines = new_lines->next; - - text->line_start_cache = new_lines; - - find_cursor (text, TRUE); -} - -/**********************************************************************/ -/* Selection */ -/**********************************************************************/ - -static void -gtk_text_set_selection (GtkOldEditable *old_editable, - gint start, - gint end) -{ - GtkText *text = GTK_TEXT (old_editable); - - guint start1, end1, start2, end2; - - if (end < 0) - end = TEXT_LENGTH (text); - - start1 = MIN(start,end); - end1 = MAX(start,end); - start2 = MIN(old_editable->selection_start_pos, old_editable->selection_end_pos); - end2 = MAX(old_editable->selection_start_pos, old_editable->selection_end_pos); - - if (start2 < start1) - { - guint tmp; - - tmp = start1; start1 = start2; start2 = tmp; - tmp = end1; end1 = end2; end2 = tmp; - } - - undraw_cursor (text, FALSE); - old_editable->selection_start_pos = start; - old_editable->selection_end_pos = end; - draw_cursor (text, FALSE); - - /* Expose only what changed */ - - if (start1 < start2) - gtk_text_update_text (old_editable, start1, MIN(end1, start2)); - - if (end2 > end1) - gtk_text_update_text (old_editable, MAX(end1, start2), end2); - else if (end2 < end1) - gtk_text_update_text (old_editable, end2, end1); -} - - -/**********************************************************************/ -/* Debug */ -/**********************************************************************/ - -#ifdef DEBUG_GTK_TEXT -static void -gtk_text_show_cache_line (GtkText *text, GList *cache, - const char* what, const char* func, gint line) -{ - LineParams *lp = &CACHE_DATA(cache); - gint i; - - if (cache == text->line_start_cache) - g_message ("Line Start Cache: "); - - if (cache == text->current_line) - g_message("Current Line: "); - - g_message ("%s:%d: cache line %s s=%d,e=%d,lh=%d (", - func, - line, - what, - lp->start.index, - lp->end.index, - LINE_HEIGHT(*lp)); - - for (i = lp->start.index; i < (lp->end.index + lp->wraps); i += 1) - g_message ("%c", GTK_TEXT_INDEX (text, i)); - - g_message (")\n"); -} - -static void -gtk_text_show_cache (GtkText *text, const char* func, gint line) -{ - GList *l = text->line_start_cache; - - if (!l) { - return; - } - - /* back up to the absolute beginning of the line cache */ - while (l->prev) - l = l->prev; - - g_message ("*** line cache ***\n"); - for (; l; l = l->next) - gtk_text_show_cache_line (text, l, "all", func, line); -} - -static void -gtk_text_assert_mark (GtkText *text, - GtkPropertyMark *mark, - GtkPropertyMark *before, - GtkPropertyMark *after, - const gchar *msg, - const gchar *where, - gint line) -{ - GtkPropertyMark correct_mark = find_mark (text, mark->index); - - if (mark->offset != correct_mark.offset || - mark->property != correct_mark.property) - g_warning ("incorrect %s text property marker in %s:%d, index %d -- bad!", where, msg, line, mark->index); -} - -static void -gtk_text_assert (GtkText *text, - const gchar *msg, - gint line) -{ - GList* cache = text->line_start_cache; - GtkPropertyMark* before_mark = NULL; - GtkPropertyMark* after_mark = NULL; - - gtk_text_show_props (text, msg, line); - - for (; cache->prev; cache = cache->prev) - /* nothing */; - - g_message ("*** line markers ***\n"); - - for (; cache; cache = cache->next) - { - after_mark = &CACHE_DATA(cache).end; - gtk_text_assert_mark (text, &CACHE_DATA(cache).start, before_mark, after_mark, msg, "start", line); - before_mark = &CACHE_DATA(cache).start; - - if (cache->next) - after_mark = &CACHE_DATA(cache->next).start; - else - after_mark = NULL; - - gtk_text_assert_mark (text, &CACHE_DATA(cache).end, before_mark, after_mark, msg, "end", line); - before_mark = &CACHE_DATA(cache).end; - } -} - -static void -gtk_text_show_adj (GtkText *text, - GtkAdjustment *adj, - const char* what, - const char* func, - gint line) -{ - g_message ("*** adjustment ***\n"); - - g_message ("%s:%d: %s adjustment l=%.1f u=%.1f v=%.1f si=%.1f pi=%.1f ps=%.1f\n", - func, - line, - what, - adj->lower, - adj->upper, - adj->value, - adj->step_increment, - adj->page_increment, - adj->page_size); -} - -static void -gtk_text_show_props (GtkText *text, - const char* msg, - int line) -{ - GList* props = text->text_properties; - int proplen = 0; - - g_message ("%s:%d: ", msg, line); - - for (; props; props = props->next) - { - TextProperty *p = (TextProperty*)props->data; - - proplen += p->length; - - g_message ("[%d,%p,", p->length, p); - if (p->flags & PROPERTY_FONT) - g_message ("%p,", p->font); - else - g_message ("-,"); - if (p->flags & PROPERTY_FOREGROUND) - g_message ("%ld, ", p->fore_color.pixel); - else - g_message ("-,"); - if (p->flags & PROPERTY_BACKGROUND) - g_message ("%ld] ", p->back_color.pixel); - else - g_message ("-] "); - } - - g_message ("\n"); - - if (proplen - 1 != TEXT_LENGTH(text)) - g_warning ("incorrect property list length in %s:%d -- bad!", msg, line); -} -#endif - -#define __GTK_TEXT_C__ -#include "gtkaliasdef.c" diff --git a/gtk/gtktext.h b/gtk/gtktext.h deleted file mode 100644 index 8bfa71aa21..0000000000 --- a/gtk/gtktext.h +++ /dev/null @@ -1,217 +0,0 @@ -/* GTK - The GIMP Toolkit - * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -/* - * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS - * file for a list of people on the GTK+ Team. See the ChangeLog - * files for a list of changes. These files are distributed with - * GTK+ at ftp://ftp.gtk.org/pub/gtk/. - */ - -#ifdef GTK_ENABLE_BROKEN - -#ifndef __GTK_TEXT_H__ -#define __GTK_TEXT_H__ - - -#include - - -G_BEGIN_DECLS - -#define GTK_TYPE_TEXT (gtk_text_get_type ()) -#define GTK_TEXT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_TEXT, GtkText)) -#define GTK_TEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_TEXT, GtkTextClass)) -#define GTK_IS_TEXT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_TEXT)) -#define GTK_IS_TEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_TEXT)) -#define GTK_TEXT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_TEXT, GtkTextClass)) - - -typedef struct _GtkTextFont GtkTextFont; -typedef struct _GtkPropertyMark GtkPropertyMark; -typedef struct _GtkText GtkText; -typedef struct _GtkTextClass GtkTextClass; - -struct _GtkPropertyMark -{ - /* Position in list. */ - GList* property; - - /* Offset into that property. */ - guint offset; - - /* Current index. */ - guint index; -}; - -struct _GtkText -{ - GtkOldEditable old_editable; - - GdkWindow *text_area; - - GtkAdjustment *hadj; - GtkAdjustment *vadj; - - GdkGC *gc; - - GdkPixmap* line_wrap_bitmap; - GdkPixmap* line_arrow_bitmap; - - /* GAPPED TEXT SEGMENT */ - - /* The text, a single segment of text a'la emacs, with a gap - * where insertion occurs. */ - union { GdkWChar *wc; guchar *ch; } text; - /* The allocated length of the text segment. */ - guint text_len; - /* The gap position, index into address where a char - * should be inserted. */ - guint gap_position; - /* The gap size, s.t. *(text + gap_position + gap_size) is - * the first valid character following the gap. */ - guint gap_size; - /* The last character position, index into address where a - * character should be appeneded. Thus, text_end - gap_size - * is the length of the actual data. */ - guint text_end; - /* LINE START CACHE */ - - /* A cache of line-start information. Data is a LineParam*. */ - GList *line_start_cache; - /* Index to the start of the first visible line. */ - guint first_line_start_index; - /* The number of pixels cut off of the top line. */ - guint first_cut_pixels; - /* First visible horizontal pixel. */ - guint first_onscreen_hor_pixel; - /* First visible vertical pixel. */ - guint first_onscreen_ver_pixel; - - /* FLAGS */ - - /* True iff this buffer is wrapping lines, otherwise it is using a - * horizontal scrollbar. */ - guint line_wrap : 1; - guint word_wrap : 1; - /* If a fontset is supplied for the widget, use_wchar become true, - * and we use GdkWchar as the encoding of text. */ - guint use_wchar : 1; - - /* Frozen, don't do updates. @@@ fixme */ - guint freeze_count; - /* TEXT PROPERTIES */ - - /* A doubly-linked-list containing TextProperty objects. */ - GList *text_properties; - /* The end of this list. */ - GList *text_properties_end; - /* The first node before or on the point along with its offset to - * the point and the buffer's current point. This is the only - * PropertyMark whose index is guaranteed to remain correct - * following a buffer insertion or deletion. */ - GtkPropertyMark point; - - /* SCRATCH AREA */ - - union { GdkWChar *wc; guchar *ch; } scratch_buffer; - guint scratch_buffer_len; - - /* SCROLLING */ - - gint last_ver_value; - - /* CURSOR */ - - gint cursor_pos_x; /* Position of cursor. */ - gint cursor_pos_y; /* Baseline of line cursor is drawn on. */ - GtkPropertyMark cursor_mark; /* Where it is in the buffer. */ - GdkWChar cursor_char; /* Character to redraw. */ - gchar cursor_char_offset; /* Distance from baseline of the font. */ - gint cursor_virtual_x; /* Where it would be if it could be. */ - gint cursor_drawn_level; /* How many people have undrawn. */ - - /* Current Line */ - - GList *current_line; - - /* Tab Stops */ - - GList *tab_stops; - gint default_tab_width; - - GtkTextFont *current_font; /* Text font for current style */ - - /* Timer used for auto-scrolling off ends */ - gint timer; - - guint button; /* currently pressed mouse button */ - GdkGC *bg_gc; /* gc for drawing background pixmap */ -}; - -struct _GtkTextClass -{ - GtkOldEditableClass parent_class; - - void (*set_scroll_adjustments) (GtkText *text, - GtkAdjustment *hadjustment, - GtkAdjustment *vadjustment); -}; - - -GType gtk_text_get_type (void) G_GNUC_CONST; -GtkWidget* gtk_text_new (GtkAdjustment *hadj, - GtkAdjustment *vadj); -void gtk_text_set_editable (GtkText *text, - gboolean editable); -void gtk_text_set_word_wrap (GtkText *text, - gboolean word_wrap); -void gtk_text_set_line_wrap (GtkText *text, - gboolean line_wrap); -void gtk_text_set_adjustments (GtkText *text, - GtkAdjustment *hadj, - GtkAdjustment *vadj); -void gtk_text_set_point (GtkText *text, - guint index); -guint gtk_text_get_point (GtkText *text); -guint gtk_text_get_length (GtkText *text); -void gtk_text_freeze (GtkText *text); -void gtk_text_thaw (GtkText *text); -void gtk_text_insert (GtkText *text, - GdkFont *font, - const GdkColor *fore, - const GdkColor *back, - const char *chars, - gint length); -gboolean gtk_text_backward_delete (GtkText *text, - guint nchars); -gboolean gtk_text_forward_delete (GtkText *text, - guint nchars); - -#define GTK_TEXT_INDEX(t, index) (((t)->use_wchar) \ - ? ((index) < (t)->gap_position ? (t)->text.wc[index] : \ - (t)->text.wc[(index)+(t)->gap_size]) \ - : ((index) < (t)->gap_position ? (t)->text.ch[index] : \ - (t)->text.ch[(index)+(t)->gap_size])) - -G_END_DECLS - -#endif /* __GTK_TEXT_H__ */ - -#endif /* GTK_ENABLE_BROKEN */