87 lines
3.2 KiB
C
87 lines
3.2 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/>.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#pragma once
|
||
|
|
|
||
|
|
#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;
|
||
|
|
|
||
|
|
typedef gboolean (*GskPangoShapeHandler) (PangoAttrShape *attr,
|
||
|
|
GdkSnapshot *snapshot,
|
||
|
|
double width,
|
||
|
|
double height);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 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, other draw calls may fall back to cairo nodes.
|
||
|
|
*/
|
||
|
|
|
||
|
|
struct _GskPangoRenderer
|
||
|
|
{
|
||
|
|
PangoRenderer parent_instance;
|
||
|
|
|
||
|
|
GtkWidget *widget;
|
||
|
|
GtkSnapshot *snapshot;
|
||
|
|
const GdkRGBA *fg_color;
|
||
|
|
|
||
|
|
/* Error underline color for this widget */
|
||
|
|
GdkRGBA *error_color;
|
||
|
|
|
||
|
|
GskPangoRendererState state;
|
||
|
|
|
||
|
|
guint is_cached_renderer : 1;
|
||
|
|
|
||
|
|
GskPangoShapeHandler shape_handler;
|
||
|
|
};
|
||
|
|
|
||
|
|
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);
|
||
|
|
void gsk_pango_renderer_set_shape_handler (GskPangoRenderer *crenderer,
|
||
|
|
GskPangoShapeHandler handler);
|
||
|
|
GskPangoRenderer *gsk_pango_renderer_acquire (void);
|
||
|
|
void gsk_pango_renderer_release (GskPangoRenderer *crenderer);
|
||
|
|
|
||
|
|
G_END_DECLS
|
||
|
|
|