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textview: Draw selection background with Cairo

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This commit is contained in:
Benjamin Otte
2010-07-16 23:56:20 +02:00
parent 3e469d737e
commit dec093d9f1
1 changed files with 53 additions and 48 deletions
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101
gtk/gtktextdisplay.c
View File

@@ -468,7 +468,8 @@ render_para (GtkTextRenderer *text_renderer,
PangoLayoutIter *iter;
PangoRectangle layout_logical;
int screen_width;
GdkGC *selection_gc, *fg_gc;
GdkColor *selection;
GdkGC *fg_gc;
gint state;
gboolean first = TRUE;
@@ -489,7 +490,7 @@ render_para (GtkTextRenderer *text_renderer,
else
state = GTK_STATE_ACTIVE;
selection_gc = text_renderer->widget->style->base_gc [state];
selection = &text_renderer->widget->style->base [state];
fg_gc = text_renderer->widget->style->text_gc[text_renderer->widget->state];
do
@@ -532,13 +533,13 @@ render_para (GtkTextRenderer *text_renderer,
if (selection_start_index < byte_offset &&
selection_end_index > line->length + byte_offset) /* All selected */
{
gdk_draw_rectangle (text_renderer->drawable,
selection_gc,
TRUE,
x + line_display->left_margin,
selection_y,
screen_width,
selection_height);
cairo_t *cr = gdk_cairo_create (text_renderer->drawable);
gdk_cairo_set_source_color (cr, selection);
cairo_rectangle (cr,
x + line_display->left_margin, selection_y,
screen_width, selection_height);
cairo_fill (cr);
cairo_destroy (cr);
text_renderer_set_state (text_renderer, SELECTED);
pango_renderer_draw_layout_line (PANGO_RENDERER (text_renderer),
@@ -550,21 +551,15 @@ render_para (GtkTextRenderer *text_renderer,
{
if (line_display->pg_bg_color)
{
GdkGC *bg_gc;
bg_gc = gdk_gc_new (text_renderer->drawable);
gdk_gc_set_fill (bg_gc, GDK_SOLID);
gdk_gc_set_rgb_fg_color (bg_gc, line_display->pg_bg_color);
gdk_draw_rectangle (text_renderer->drawable,
bg_gc,
TRUE,
x + line_display->left_margin,
selection_y,
screen_width,
selection_height);
g_object_unref (bg_gc);
cairo_t *cr = gdk_cairo_create (text_renderer->drawable);
gdk_cairo_set_source_color (cr, line_display->pg_bg_color);
cairo_rectangle (cr,
x + line_display->left_margin, selection_y,
screen_width, selection_height);
cairo_fill (cr);
cairo_destroy (cr);
}
text_renderer_set_state (text_renderer, NORMAL);
@@ -581,29 +576,35 @@ render_para (GtkTextRenderer *text_renderer,
(selection_start_index == byte_offset + line->length && pango_layout_iter_at_last_line (iter))) &&
selection_end_index > byte_offset)
{
cairo_t *cr;
cairo_region_t *clip_region = get_selected_clip (text_renderer, layout, line,
x + line_display->x_offset,
selection_y,
selection_height,
selection_start_index, selection_end_index);
cr = gdk_cairo_create (text_renderer->drawable);
gdk_cairo_region (cr, clip_region);
cairo_clip (cr);
gdk_cairo_set_source_color (cr, selection);
cairo_rectangle (cr,
x + PANGO_PIXELS (line_rect.x),
selection_y,
PANGO_PIXELS (line_rect.width),
selection_height);
cairo_fill (cr);
cairo_destroy (cr);
/* When we change the clip on the foreground GC, we have to set
* it on the rendererer again, since the rendererer might have
* copied the GC to change attributes.
*/
gdk_pango_renderer_set_gc (GDK_PANGO_RENDERER (text_renderer), NULL);
gdk_gc_set_clip_region (selection_gc, clip_region);
gdk_gc_set_clip_region (fg_gc, clip_region);
gdk_pango_renderer_set_gc (GDK_PANGO_RENDERER (text_renderer), fg_gc);
gdk_draw_rectangle (text_renderer->drawable,
selection_gc,
TRUE,
x + PANGO_PIXELS (line_rect.x),
selection_y,
PANGO_PIXELS (line_rect.width),
selection_height);
text_renderer_set_state (text_renderer, SELECTED);
pango_renderer_draw_layout_line (PANGO_RENDERER (text_renderer),
line,
@@ -611,7 +612,6 @@ render_para (GtkTextRenderer *text_renderer,
PANGO_SCALE * y + baseline);
gdk_pango_renderer_set_gc (GDK_PANGO_RENDERER (text_renderer), NULL);
gdk_gc_set_clip_region (selection_gc, NULL);
gdk_gc_set_clip_region (fg_gc, NULL);
gdk_pango_renderer_set_gc (GDK_PANGO_RENDERER (text_renderer), fg_gc);
@@ -622,13 +622,16 @@ render_para (GtkTextRenderer *text_renderer,
((line_display->direction == GTK_TEXT_DIR_LTR && selection_start_index < byte_offset) ||
(line_display->direction == GTK_TEXT_DIR_RTL && selection_end_index > byte_offset + line->length)))
{
gdk_draw_rectangle (text_renderer->drawable,
selection_gc,
TRUE,
x + line_display->left_margin,
selection_y,
PANGO_PIXELS (line_rect.x) - line_display->left_margin,
selection_height);
cairo_t *cr = gdk_cairo_create (text_renderer->drawable);
gdk_cairo_set_source_color (cr, selection);
cairo_rectangle (cr,
x + line_display->left_margin,
selection_y,
PANGO_PIXELS (line_rect.x) - line_display->left_margin,
selection_height);
cairo_fill (cr);
cairo_destroy (cr);
}
if (line_rect.x + line_rect.width <
@@ -636,19 +639,21 @@ render_para (GtkTextRenderer *text_renderer,
((line_display->direction == GTK_TEXT_DIR_LTR && selection_end_index > byte_offset + line->length) ||
(line_display->direction == GTK_TEXT_DIR_RTL && selection_start_index < byte_offset)))
{
cairo_t *cr = gdk_cairo_create (text_renderer->drawable);
int nonlayout_width;
nonlayout_width =
line_display->left_margin + screen_width -
PANGO_PIXELS (line_rect.x) - PANGO_PIXELS (line_rect.width);
gdk_draw_rectangle (text_renderer->drawable,
selection_gc,
TRUE,
x + PANGO_PIXELS (line_rect.x) + PANGO_PIXELS (line_rect.width),
selection_y,
nonlayout_width,
selection_height);
gdk_cairo_set_source_color (cr, selection);
cairo_rectangle (cr,
x + PANGO_PIXELS (line_rect.x) + PANGO_PIXELS (line_rect.width),
selection_y,
nonlayout_width,
selection_height);
cairo_fill (cr);
cairo_destroy (cr);
}
}
else if (line_display->has_block_cursor &&