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gtk-demo: add combobox demos

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https://bugzilla.gnome.org/show_bug.cgi?id=762080
This commit is contained in:
Caolán McNamara 2016-02-15 12:38:52 +00:00 committed by Matthias Clasen
parent 1131ae27a0
commit ee9c1c1449
1 changed files with 50 additions and 1 deletions
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51
demos/gtk-demo/foreigndrawing.c
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@ -445,6 +445,51 @@ draw_progress (GtkWidget *widget,
g_object_unref (bar_context);
}
static void
draw_combobox (GtkWidget *widget,
cairo_t *cr,
gint x,
gint y,
gint width,
gboolean has_entry)
{
GtkStyleContext *combo_context;
GtkStyleContext *button_context;
GtkStyleContext *entry_context;
GtkStyleContext *arrow_context;
/* This information is taken from the GtkComboBox docs, see "CSS nodes" */
combo_context = get_style (NULL, "combobox:focus");
button_context = get_style (combo_context, "button:focus");
entry_context = get_style (combo_context, "entry:focus");
arrow_context = get_style (button_context, "arrow");
gtk_render_background (combo_context, cr, x, y, width, 30);
gtk_render_frame (combo_context, cr, x, y, width, 30);
if (has_entry)
{
gtk_style_context_set_junction_sides (entry_context, GTK_JUNCTION_RIGHT);
gtk_render_background (entry_context, cr, x, y, width - 30, 30);
gtk_render_frame (entry_context, cr, x, y, width - 30, 30);
gtk_render_background (button_context, cr, x + width - 30, y, 30, 30);
gtk_render_frame (button_context, cr, x + width - 30, y, 30, 30);
}
else
{
gtk_render_background (button_context, cr, x, y, width, 30);
gtk_render_frame (button_context, cr, x, y, width, 30);
}
gtk_render_arrow (arrow_context, cr, G_PI / 2, x + width - 25, y+5, 20);
g_object_unref (arrow_context);
g_object_unref (entry_context);
g_object_unref (button_context);
g_object_unref (combo_context);
}
static void
draw_spinbutton (GtkWidget *widget,
cairo_t *cr,
@ -507,7 +552,7 @@ draw_cb (GtkWidget *widget,
height = gtk_widget_get_allocated_height (widget);
cairo_rectangle (cr, 0, 0, width, height);
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_set_source_rgb (cr, 0.6, 0.6, 0.6);
cairo_fill (cr);
draw_horizontal_scrollbar (widget, cr, 10, 10, panewidth - 20, 10, 30, GTK_STATE_FLAG_NORMAL);
@ -531,6 +576,10 @@ draw_cb (GtkWidget *widget,
draw_notebook (widget, cr, 10, 200, panewidth - 20, 160);
draw_combobox (widget, cr, 10 + panewidth, 200, panewidth - 20, FALSE);
draw_combobox (widget, cr, 10 + panewidth, 240, panewidth - 20, TRUE);
return FALSE;
}