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gladeui: Initially port of signal-editor drag & drop to new drawing API

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This commit is contained in:
Johannes Schmid 2010-12-30 22:24:20 +01:00
parent 9e42101184
commit ba341982c2
1 changed files with 16 additions and 36 deletions
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52
gladeui/glade-signal-editor.c
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@ -395,12 +395,12 @@ name_cell_data_func (GtkTreeViewColumn* column,
g_free (name);
}
static GdkPixmap*
create_rich_drag_icon (GtkWidget* widget, const gchar* text)
static cairo_surface_t*
create_rich_drag_surface (GtkWidget* widget, const gchar* text)
{
PangoLayout* layout = pango_layout_new (gtk_widget_get_pango_context (widget));
GdkPixmap* pixmap;
cairo_t* cr;
cairo_surface_t* s;
gint width, height;
pango_layout_set_text (layout, text, -1);
@ -408,33 +408,17 @@ create_rich_drag_icon (GtkWidget* widget, const gchar* text)
width = PANGO_PIXELS(width) + 10;
height = PANGO_PIXELS(height) + 10;
pixmap = gdk_pixmap_new (gtk_widget_get_window (widget),
width,
height,
-1);
cr = gdk_cairo_create (pixmap);
gdk_cairo_set_source_pixmap (cr, pixmap, 0, 0);
s = cairo_image_surface_create (CAIRO_FORMAT_A1, width, height);
cr = cairo_create (s);
gdk_draw_rectangle (GDK_DRAWABLE (pixmap),
gtk_widget_get_style (widget)->base_gc [gtk_widget_get_state (widget)],
TRUE,
0, 0,
width, height);
gdk_draw_layout (GDK_DRAWABLE (pixmap),
gtk_widget_get_style (widget)->text_gc [gtk_widget_get_state (widget)],
5,
5,
layout);
gdk_draw_rectangle (GDK_DRAWABLE (pixmap),
gtk_widget_get_style (widget)->black_gc,
FALSE,
0, 0,
width - 1, height - 1);
g_object_unref (layout);
cairo_rectangle (cr, 0, 0, 1, 1);
cairo_show_text (cr, text);
cairo_stroke (cr);
g_object_unref (layout);
return pixmap;
return s;;
}
static void
@ -442,7 +426,7 @@ glade_signal_editor_drag_begin (GtkWidget* widget,
GdkDragContext* context,
gpointer user_data)
{
GdkPixmap *pixmap = NULL;
cairo_surface_t *s = NULL;
GtkTreeModel *model;
GtkTreeIter iter;
GtkTreeSelection* selection;
@ -454,17 +438,13 @@ glade_signal_editor_drag_begin (GtkWidget* widget,
gchar* handler;
gtk_tree_model_get (model, &iter,
GLADE_SIGNAL_COLUMN_HANDLER, &handler, -1);
pixmap = create_rich_drag_icon (widget, handler);
s = create_rich_drag_surface (widget, handler);
}
if (pixmap)
if (s)
{
gtk_drag_set_icon_pixmap (context,
gdk_drawable_get_colormap (GDK_DRAWABLE(gtk_widget_get_window (widget))),
pixmap,
NULL,
-2, -2);
g_object_unref (pixmap);
gtk_drag_set_icon_surface (context, s);
g_object_unref (s);
}
else
{