forked from AuroraMiddleware/gtk
4ff9163c47
This removes the use of GtkTextDisplay (a PangoRenderer) to use the GskPangoRender which generates render nodes. Part of this means improving the GskPangoRenderer to support the necessary features for displaying a GtkTextView. Primarily, this is a merging of GtkTextDisplay features into GskPangoRender. Additionally, GtkTextDisplay was removed to allow for gtk_text_layout_snapshot() to be implemented elsewhere.
82 lines
2.8 KiB
C
82 lines
2.8 KiB
C
/* GSK - The GTK Scene Kit
|
|
*
|
|
* Copyright 2017 Red Hat, Inc.
|
|
*
|
|
* 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, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef __GSK_PANGO_H__
|
|
#define __GSK_PANGO_H__
|
|
|
|
#include <pango/pango.h>
|
|
#include "gtk/gtksnapshot.h"
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GSK_TYPE_PANGO_RENDERER (gsk_pango_renderer_get_type ())
|
|
#define GSK_PANGO_RENDERER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GSK_TYPE_PANGO_RENDERER, GskPangoRenderer))
|
|
#define GSK_IS_PANGO_RENDERER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GSK_TYPE_PANGO_RENDERER))
|
|
#define GSK_PANGO_RENDERER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GSK_TYPE_PANGO_RENDERER, GskPangoRendererClass))
|
|
#define GSK_IS_PANGO_RENDERER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GSK_TYPE_PANGO_RENDERER))
|
|
#define GSK_PANGO_RENDERER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GSK_TYPE_PANGO_RENDERER, GskPangoRendererClass))
|
|
|
|
typedef struct _GskPangoRenderer GskPangoRenderer;
|
|
typedef struct _GskPangoRendererClass GskPangoRendererClass;
|
|
|
|
typedef enum
|
|
{
|
|
GSK_PANGO_RENDERER_NORMAL,
|
|
GSK_PANGO_RENDERER_SELECTED,
|
|
GSK_PANGO_RENDERER_CURSOR
|
|
} GskPangoRendererState;
|
|
|
|
/*
|
|
* This is a PangoRenderer implementation that translates all the draw calls to
|
|
* gsk render nodes, using the GtkSnapshot helper class. Glyphs are translated
|
|
* to text nodes, all other draw calls fall back to cairo nodes.
|
|
*/
|
|
|
|
struct _GskPangoRenderer
|
|
{
|
|
PangoRenderer parent_instance;
|
|
|
|
GtkWidget *widget;
|
|
GtkSnapshot *snapshot;
|
|
GdkRGBA fg_color;
|
|
graphene_rect_t bounds;
|
|
|
|
/* Error underline color for this widget */
|
|
GdkRGBA *error_color;
|
|
|
|
GskPangoRendererState state;
|
|
|
|
/* house-keeping options */
|
|
guint is_cached_renderer : 1;
|
|
};
|
|
|
|
struct _GskPangoRendererClass
|
|
{
|
|
PangoRendererClass parent_class;
|
|
};
|
|
|
|
GType gsk_pango_renderer_get_type (void) G_GNUC_CONST;
|
|
void gsk_pango_renderer_set_state (GskPangoRenderer *crenderer,
|
|
GskPangoRendererState state);
|
|
GskPangoRenderer *gsk_pango_renderer_acquire (void);
|
|
void gsk_pango_renderer_release (GskPangoRenderer *crenderer);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GSK_PANGO_H__ */
|