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/* GDK - The GIMP Drawing Kit
* Copyright (C) 2000 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GDK_PANGO_H__
#define __GDK_PANGO_H__
#include <gdk/gdktypes.h>
G_BEGIN_DECLS
/* Pango interaction */
typedef struct _GdkPangoRenderer GdkPangoRenderer;
typedef struct _GdkPangoRendererClass GdkPangoRendererClass;
typedef struct _GdkPangoRendererPrivate GdkPangoRendererPrivate;
#define GDK_TYPE_PANGO_RENDERER (gdk_pango_renderer_get_type())
#define GDK_PANGO_RENDERER(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_PANGO_RENDERER, GdkPangoRenderer))
#define GDK_IS_PANGO_RENDERER(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_PANGO_RENDERER))
#define GDK_PANGO_RENDERER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_PANGO_RENDERER, GdkPangoRendererClass))
#define GDK_IS_PANGO_RENDERER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_PANGO_RENDERER))
#define GDK_PANGO_RENDERER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_PANGO_RENDERER, GdkPangoRendererClass))
/**
* GdkPangoRenderer:
*
* #GdkPangoRenderer is a subclass of #PangoRenderer used for rendering
* Pango objects into GDK drawables. The default renderer for a particular
* screen is obtained with gdk_pango_renderer_get_default(); Pango
* functions like pango_renderer_draw_layout() and
* pango_renderer_draw_layout_line() are then used to draw objects with
* the renderer.
*
* In most simple cases, applications can just use gdk_draw_layout(), and
* don't need to directly use #GdkPangoRenderer at all. Using the
* #GdkPangoRenderer directly is most useful when working with a
* transformation such as a rotation, because the Pango drawing functions
* take user space coordinates (coordinates before the transformation)
* instead of device coordinates.
*
* In certain cases it can be useful to subclass #GdkPangoRenderer. Examples
* of reasons to do this are to add handling of custom attributes by
* overriding 'prepare_run' or to do custom drawing of embedded objects
* by overriding 'draw_shape'.
*
* Since: 2.6
**/
struct _GdkPangoRenderer
{
/*< private >*/
PangoRenderer parent_instance;
GdkPangoRendererPrivate *priv;
};
/**
* GdkPangoRendererClass:
*
* #GdkPangoRenderer is the class structure for #GdkPangoRenderer.
*
* Since: 2.6
**/
struct _GdkPangoRendererClass
{
/*< private >*/
PangoRendererClass parent_class;
};
GType gdk_pango_renderer_get_type (void) G_GNUC_CONST;
PangoRenderer *gdk_pango_renderer_new (GdkScreen *screen);
PangoRenderer *gdk_pango_renderer_get_default (GdkScreen *screen);
void gdk_pango_renderer_set_drawable (GdkPangoRenderer *gdk_renderer,
GdkDrawable *drawable);
void gdk_pango_renderer_set_gc (GdkPangoRenderer *gdk_renderer,
GdkGC *gc);
void gdk_pango_renderer_set_stipple (GdkPangoRenderer *gdk_renderer,
PangoRenderPart part,
GdkBitmap *stipple);
void gdk_pango_renderer_set_override_color (GdkPangoRenderer *gdk_renderer,
PangoRenderPart part,
const GdkColor *color);
/************************************************************************/
PangoContext *gdk_pango_context_get_for_screen (GdkScreen *screen);
#ifndef GDK_MULTIHEAD_SAFE
PangoContext *gdk_pango_context_get (void);
#endif
#ifndef GDK_DISABLE_DEPRECATED
void gdk_pango_context_set_colormap (PangoContext *context,
GdkColormap *colormap);
#endif
/* Get a clip region to draw only part of a layout or
* line. index_ranges contains alternating range starts/stops. The
* region is the region which contains the given ranges, i.e. if you
* draw with the region as clip, only the given ranges are drawn.
*/
GdkRegion *gdk_pango_layout_line_get_clip_region (PangoLayoutLine *line,
gint x_origin,
gint y_origin,
gint *index_ranges,
gint n_ranges);
GdkRegion *gdk_pango_layout_get_clip_region (PangoLayout *layout,
gint x_origin,
gint y_origin,
gint *index_ranges,
gint n_ranges);
/* Attributes use to render insensitive text in GTK+. */
typedef struct _GdkPangoAttrStipple GdkPangoAttrStipple;
typedef struct _GdkPangoAttrEmbossed GdkPangoAttrEmbossed;
struct _GdkPangoAttrStipple
{
PangoAttribute attr;
GdkBitmap *stipple;
};
struct _GdkPangoAttrEmbossed
{
PangoAttribute attr;
gboolean embossed;
};
PangoAttribute *gdk_pango_attr_stipple_new (GdkBitmap *stipple);
PangoAttribute *gdk_pango_attr_embossed_new (gboolean embossed);
G_END_DECLS
#endif /* __GDK_FONT_H__ */
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