dfd280acd0
Duplicate the listbox demo with GtkListView, and give both demos a "more messages" button, to demonstrate scalability.
330 lines
11 KiB
C
330 lines
11 KiB
C
/* List Box
|
|
*
|
|
* GtkListBox allows lists with complicated layouts, using
|
|
* regular widgets supporting sorting and filtering.
|
|
*
|
|
*/
|
|
|
|
#include <gtk/gtk.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "message.h"
|
|
|
|
static GdkPixbuf *avatar_pixbuf_other;
|
|
static GtkWidget *window = NULL;
|
|
|
|
#define GTK_TYPE_MESSAGE_ROW (gtk_message_row_get_type ())
|
|
#define GTK_MESSAGE_ROW(message_row) (G_TYPE_CHECK_INSTANCE_CAST ((message_row), GTK_TYPE_MESSAGE_ROW, GtkMessageRow))
|
|
#define GTK_MESSAGE_ROW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_MESSAGE_ROW, GtkMessageRowClass))
|
|
#define GTK_IS_MESSAGE_ROW(message_row) (G_TYPE_CHECK_INSTANCE_TYPE ((message_row), GTK_TYPE_MESSAGE_ROW))
|
|
#define GTK_IS_MESSAGE_ROW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_MESSAGE_ROW))
|
|
#define GTK_MESSAGE_ROW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_MESSAGE_ROW, GtkMessageRowClass))
|
|
|
|
typedef struct _GtkMessageRow GtkMessageRow;
|
|
typedef struct _GtkMessageRowClass GtkMessageRowClass;
|
|
typedef struct _GtkMessageRowPrivate GtkMessageRowPrivate;
|
|
|
|
struct _GtkMessageRow
|
|
{
|
|
GtkListBoxRow parent;
|
|
|
|
GtkMessageRowPrivate *priv;
|
|
};
|
|
|
|
struct _GtkMessageRowClass
|
|
{
|
|
GtkListBoxRowClass parent_class;
|
|
};
|
|
|
|
struct _GtkMessageRowPrivate
|
|
{
|
|
GtkMessage *message;
|
|
GtkRevealer *details_revealer;
|
|
GtkImage *avatar_image;
|
|
GtkWidget *extra_buttons_box;
|
|
GtkLabel *content_label;
|
|
GtkLabel *source_name;
|
|
GtkLabel *source_nick;
|
|
GtkLabel *short_time_label;
|
|
GtkLabel *detailed_time_label;
|
|
GtkBox *resent_box;
|
|
GtkLinkButton *resent_by_button;
|
|
GtkLabel *n_favorites_label;
|
|
GtkLabel *n_reshares_label;
|
|
GtkButton *expand_button;
|
|
};
|
|
|
|
GType gtk_message_row_get_type (void) G_GNUC_CONST;
|
|
|
|
G_DEFINE_TYPE_WITH_PRIVATE (GtkMessageRow, gtk_message_row, GTK_TYPE_LIST_BOX_ROW);
|
|
|
|
static void
|
|
gtk_message_row_update (GtkMessageRow *row)
|
|
{
|
|
GtkMessageRowPrivate *priv = row->priv;
|
|
GDateTime *t;
|
|
char *s;
|
|
|
|
gtk_label_set_text (priv->source_name, priv->message->sender_name);
|
|
gtk_label_set_text (priv->source_nick, priv->message->sender_nick);
|
|
gtk_label_set_text (priv->content_label, priv->message->message);
|
|
t = g_date_time_new_from_unix_utc (priv->message->time);
|
|
s = g_date_time_format (t, "%e %b %y");
|
|
gtk_label_set_text (priv->short_time_label, s);
|
|
g_free (s);
|
|
s = g_date_time_format (t, "%X - %e %b %Y");
|
|
gtk_label_set_text (priv->detailed_time_label, s);
|
|
g_free (s);
|
|
g_date_time_unref (t);
|
|
|
|
gtk_widget_set_visible (GTK_WIDGET(priv->n_favorites_label),
|
|
priv->message->n_favorites != 0);
|
|
s = g_strdup_printf ("<b>%d</b>\nFavorites", priv->message->n_favorites);
|
|
gtk_label_set_markup (priv->n_favorites_label, s);
|
|
g_free (s);
|
|
|
|
gtk_widget_set_visible (GTK_WIDGET(priv->n_reshares_label),
|
|
priv->message->n_reshares != 0);
|
|
s = g_strdup_printf ("<b>%d</b>\nReshares", priv->message->n_reshares);
|
|
gtk_label_set_markup (priv->n_reshares_label, s);
|
|
g_free (s);
|
|
|
|
gtk_widget_set_visible (GTK_WIDGET (priv->resent_box), priv->message->resent_by != NULL);
|
|
if (priv->message->resent_by)
|
|
gtk_button_set_label (GTK_BUTTON (priv->resent_by_button), priv->message->resent_by);
|
|
|
|
if (strcmp (priv->message->sender_nick, "@GTKtoolkit") == 0)
|
|
{
|
|
gtk_image_set_from_icon_name (priv->avatar_image, "gtk3-demo");
|
|
gtk_image_set_icon_size (priv->avatar_image, GTK_ICON_SIZE_LARGE);
|
|
}
|
|
else
|
|
gtk_image_set_from_pixbuf (priv->avatar_image, avatar_pixbuf_other);
|
|
|
|
}
|
|
|
|
static void
|
|
gtk_message_row_expand (GtkMessageRow *row)
|
|
{
|
|
GtkMessageRowPrivate *priv = row->priv;
|
|
gboolean expand;
|
|
|
|
expand = !gtk_revealer_get_reveal_child (priv->details_revealer);
|
|
|
|
gtk_revealer_set_reveal_child (priv->details_revealer, expand);
|
|
if (expand)
|
|
gtk_button_set_label (priv->expand_button, "Hide");
|
|
else
|
|
gtk_button_set_label (priv->expand_button, "Expand");
|
|
}
|
|
|
|
static void
|
|
expand_clicked (GtkMessageRow *row,
|
|
GtkButton *button)
|
|
{
|
|
gtk_message_row_expand (row);
|
|
}
|
|
|
|
static void
|
|
reshare_clicked (GtkMessageRow *row,
|
|
GtkButton *button)
|
|
{
|
|
GtkMessageRowPrivate *priv = row->priv;
|
|
|
|
priv->message->n_reshares++;
|
|
gtk_message_row_update (row);
|
|
|
|
}
|
|
|
|
static void
|
|
favorite_clicked (GtkMessageRow *row,
|
|
GtkButton *button)
|
|
{
|
|
GtkMessageRowPrivate *priv = row->priv;
|
|
|
|
priv->message->n_favorites++;
|
|
gtk_message_row_update (row);
|
|
}
|
|
|
|
static void
|
|
gtk_message_row_state_flags_changed (GtkWidget *widget,
|
|
GtkStateFlags previous_state_flags)
|
|
{
|
|
GtkMessageRowPrivate *priv = GTK_MESSAGE_ROW (widget)->priv;
|
|
GtkStateFlags flags;
|
|
|
|
flags = gtk_widget_get_state_flags (widget);
|
|
|
|
gtk_widget_set_visible (priv->extra_buttons_box,
|
|
flags & (GTK_STATE_FLAG_PRELIGHT | GTK_STATE_FLAG_SELECTED));
|
|
|
|
GTK_WIDGET_CLASS (gtk_message_row_parent_class)->state_flags_changed (widget, previous_state_flags);
|
|
}
|
|
|
|
static void
|
|
gtk_message_row_finalize (GObject *obj)
|
|
{
|
|
GtkMessageRowPrivate *priv = GTK_MESSAGE_ROW (obj)->priv;
|
|
g_object_unref (priv->message);
|
|
G_OBJECT_CLASS (gtk_message_row_parent_class)->finalize(obj);
|
|
}
|
|
|
|
static void
|
|
gtk_message_row_class_init (GtkMessageRowClass *klass)
|
|
{
|
|
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
|
|
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
|
|
|
object_class->finalize = gtk_message_row_finalize;
|
|
|
|
gtk_widget_class_set_template_from_resource (widget_class, "/listbox/listbox.ui");
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkMessageRow, content_label);
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkMessageRow, source_name);
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkMessageRow, source_nick);
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkMessageRow, short_time_label);
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkMessageRow, detailed_time_label);
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkMessageRow, extra_buttons_box);
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkMessageRow, details_revealer);
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkMessageRow, avatar_image);
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkMessageRow, resent_box);
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkMessageRow, resent_by_button);
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkMessageRow, n_reshares_label);
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkMessageRow, n_favorites_label);
|
|
gtk_widget_class_bind_template_child_private (widget_class, GtkMessageRow, expand_button);
|
|
gtk_widget_class_bind_template_callback (widget_class, expand_clicked);
|
|
gtk_widget_class_bind_template_callback (widget_class, reshare_clicked);
|
|
gtk_widget_class_bind_template_callback (widget_class, favorite_clicked);
|
|
|
|
widget_class->state_flags_changed = gtk_message_row_state_flags_changed;
|
|
}
|
|
|
|
static void
|
|
gtk_message_row_init (GtkMessageRow *row)
|
|
{
|
|
row->priv = gtk_message_row_get_instance_private (row);
|
|
|
|
gtk_widget_init_template (GTK_WIDGET (row));
|
|
}
|
|
|
|
static GtkMessageRow *
|
|
gtk_message_row_new (GtkMessage *message)
|
|
{
|
|
GtkMessageRow *row;
|
|
|
|
row = g_object_new (gtk_message_row_get_type (), NULL);
|
|
row->priv->message = message;
|
|
gtk_message_row_update (row);
|
|
|
|
return row;
|
|
}
|
|
|
|
static int
|
|
gtk_message_row_sort (GtkMessageRow *a, GtkMessageRow *b, gpointer data)
|
|
{
|
|
return b->priv->message->time - a->priv->message->time;
|
|
}
|
|
|
|
static void
|
|
row_activated (GtkListBox *listbox, GtkListBoxRow *row)
|
|
{
|
|
gtk_message_row_expand (GTK_MESSAGE_ROW (row));
|
|
}
|
|
|
|
static void
|
|
update_count (GtkListBox *listbox, GtkLabel *label)
|
|
{
|
|
GList *children = gtk_container_get_children (GTK_CONTAINER (listbox));
|
|
guint n_items = g_list_length (children);
|
|
g_list_free (children);
|
|
|
|
char *text = g_strdup_printf ("%u rows", n_items);
|
|
gtk_label_set_label (label, text);
|
|
g_free (text);
|
|
}
|
|
|
|
static GtkWidget *header_label;
|
|
|
|
static void
|
|
add_more (GtkListBox *listbox)
|
|
{
|
|
GBytes *data;
|
|
char **lines;
|
|
int i;
|
|
|
|
data = g_resources_lookup_data ("/listbox/messages.txt", 0, NULL);
|
|
lines = g_strsplit (g_bytes_get_data (data, NULL), "\n", 0);
|
|
|
|
for (i = 0; lines[i] != NULL && *lines[i]; i++)
|
|
{
|
|
GtkMessage *message = gtk_message_new (lines[i]);
|
|
GtkMessageRow *row = gtk_message_row_new (message);
|
|
gtk_container_add (GTK_CONTAINER (listbox), GTK_WIDGET (row));
|
|
}
|
|
|
|
g_strfreev (lines);
|
|
g_bytes_unref (data);
|
|
|
|
update_count (listbox, GTK_LABEL (header_label));
|
|
}
|
|
|
|
GtkWidget *
|
|
do_listbox (GtkWidget *do_widget)
|
|
{
|
|
GtkWidget *scrolled, *listbox, *vbox, *label;
|
|
GtkWidget *header, *more;
|
|
|
|
if (!window)
|
|
{
|
|
avatar_pixbuf_other = gdk_pixbuf_new_from_resource_at_scale ("/listbox/apple-red.png", 32, 32, FALSE, NULL);
|
|
|
|
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
|
|
gtk_window_set_display (GTK_WINDOW (window),
|
|
gtk_widget_get_display (do_widget));
|
|
gtk_window_set_default_size (GTK_WINDOW (window), 400, 600);
|
|
|
|
/* NULL window variable when window is closed */
|
|
g_signal_connect (window, "destroy",
|
|
G_CALLBACK (gtk_widget_destroyed),
|
|
&window);
|
|
|
|
listbox = gtk_list_box_new ();
|
|
|
|
header = gtk_header_bar_new ();
|
|
gtk_header_bar_set_show_title_buttons (GTK_HEADER_BAR (header), TRUE);
|
|
gtk_header_bar_set_title (GTK_HEADER_BAR (header), "List View");
|
|
header_label = gtk_label_new ("");
|
|
gtk_header_bar_pack_start (GTK_HEADER_BAR (header), header_label);
|
|
more = gtk_button_new_from_icon_name ("list-add");
|
|
|
|
g_signal_connect_swapped (more, "clicked", G_CALLBACK (add_more), listbox);
|
|
|
|
gtk_header_bar_pack_start (GTK_HEADER_BAR (header), more);
|
|
gtk_window_set_titlebar (GTK_WINDOW (window), header);
|
|
|
|
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
|
|
gtk_container_add (GTK_CONTAINER (window), vbox);
|
|
label = gtk_label_new ("Messages from Gtk+ and friends");
|
|
gtk_box_pack_start (GTK_BOX (vbox), label);
|
|
scrolled = gtk_scrolled_window_new (NULL, NULL);
|
|
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled), GTK_POLICY_NEVER, GTK_POLICY_AUTOMATIC);
|
|
gtk_widget_set_vexpand (scrolled, TRUE);
|
|
gtk_box_pack_start (GTK_BOX (vbox), scrolled);
|
|
gtk_container_add (GTK_CONTAINER (scrolled), listbox);
|
|
|
|
gtk_list_box_set_sort_func (GTK_LIST_BOX (listbox), (GtkListBoxSortFunc)gtk_message_row_sort, listbox, NULL);
|
|
gtk_list_box_set_activate_on_single_click (GTK_LIST_BOX (listbox), FALSE);
|
|
g_signal_connect (listbox, "row-activated", G_CALLBACK (row_activated), NULL);
|
|
|
|
add_more (listbox);
|
|
update_count (listbox, header_label);
|
|
}
|
|
|
|
if (!gtk_widget_get_visible (window))
|
|
gtk_widget_show (window);
|
|
else
|
|
gtk_widget_destroy (window);
|
|
|
|
return window;
|
|
}
|