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5a5f8081f0
GdkRGBA is a boxed struct similar to GdkColor, with the difference that it stores alpha information as well, and colors are stored in [0..1] doubles, in the cairo spirit. gdk_cairo_set_source_rgba() has been also added to allow easier handling of this new type.
65 lines
2.6 KiB
C
65 lines
2.6 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 2005 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#if !defined (__GDK_H_INSIDE__) && !defined (GDK_COMPILATION)
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#error "Only <gdk/gdk.h> can be included directly."
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#endif
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#ifndef __GDK_CAIRO_H__
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#define __GDK_CAIRO_H__
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#include <gdk/gdkcolor.h>
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#include <gdk/gdkrgba.h>
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#include <gdk/gdkpixbuf.h>
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#include <pango/pangocairo.h>
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G_BEGIN_DECLS
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cairo_t *gdk_cairo_create (GdkDrawable *drawable);
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void gdk_cairo_reset_clip (cairo_t *cr,
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GdkDrawable *drawable);
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gboolean gdk_cairo_get_clip_rectangle(cairo_t *cr,
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GdkRectangle *rect);
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void gdk_cairo_set_source_color (cairo_t *cr,
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const GdkColor *color);
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void gdk_cairo_set_source_rgba (cairo_t *cr,
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const GdkRGBA *rgba);
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void gdk_cairo_set_source_pixbuf (cairo_t *cr,
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const GdkPixbuf *pixbuf,
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double pixbuf_x,
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double pixbuf_y);
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void gdk_cairo_set_source_window (cairo_t *cr,
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GdkWindow *window,
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double x,
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double y);
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void gdk_cairo_rectangle (cairo_t *cr,
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const GdkRectangle *rectangle);
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void gdk_cairo_region (cairo_t *cr,
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const cairo_region_t *region);
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cairo_region_t *
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gdk_cairo_region_create_from_surface
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(cairo_surface_t *surface);
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G_END_DECLS
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#endif /* __GDK_CAIRO_H__ */
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