forked from AuroraMiddleware/gtk
6a48a042c7
XXX: Some traces in the win32 code are left. I suppose they'd best be replaced using Cairo.
444 lines
14 KiB
C
444 lines
14 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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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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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "config.h"
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#include "gdkpixmap.h"
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#include "gdkinternals.h"
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#include "gdkpixbuf.h"
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#include "gdkscreen.h"
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static void gdk_pixmap_real_get_size (GdkDrawable *drawable,
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gint *width,
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gint *height);
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static cairo_surface_t *gdk_pixmap_ref_cairo_surface (GdkDrawable *drawable);
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static cairo_surface_t *gdk_pixmap_create_cairo_surface (GdkDrawable *drawable,
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int width,
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int height);
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static GdkVisual* gdk_pixmap_real_get_visual (GdkDrawable *drawable);
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static gint gdk_pixmap_real_get_depth (GdkDrawable *drawable);
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static void gdk_pixmap_real_set_colormap (GdkDrawable *drawable,
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GdkColormap *cmap);
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static GdkColormap* gdk_pixmap_real_get_colormap (GdkDrawable *drawable);
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static GdkScreen* gdk_pixmap_real_get_screen (GdkDrawable *drawable);
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static void gdk_pixmap_init (GdkPixmapObject *pixmap);
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static void gdk_pixmap_class_init (GdkPixmapObjectClass *klass);
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static void gdk_pixmap_finalize (GObject *object);
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static gpointer parent_class = NULL;
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GType
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gdk_pixmap_get_type (void)
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{
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static GType object_type = 0;
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if (!object_type)
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object_type = g_type_register_static_simple (GDK_TYPE_DRAWABLE,
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"GdkPixmap",
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sizeof (GdkPixmapObjectClass),
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(GClassInitFunc) gdk_pixmap_class_init,
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sizeof (GdkPixmapObject),
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(GInstanceInitFunc) gdk_pixmap_init,
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0);
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return object_type;
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}
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static void
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gdk_pixmap_init (GdkPixmapObject *pixmap)
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{
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/* 0-initialization is good for all other fields. */
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pixmap->impl = g_object_new (_gdk_pixmap_impl_get_type (), NULL);
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}
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static void
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gdk_pixmap_class_init (GdkPixmapObjectClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GdkDrawableClass *drawable_class = GDK_DRAWABLE_CLASS (klass);
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parent_class = g_type_class_peek_parent (klass);
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object_class->finalize = gdk_pixmap_finalize;
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drawable_class->get_depth = gdk_pixmap_real_get_depth;
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drawable_class->get_screen = gdk_pixmap_real_get_screen;
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drawable_class->get_size = gdk_pixmap_real_get_size;
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drawable_class->set_colormap = gdk_pixmap_real_set_colormap;
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drawable_class->get_colormap = gdk_pixmap_real_get_colormap;
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drawable_class->get_visual = gdk_pixmap_real_get_visual;
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drawable_class->ref_cairo_surface = gdk_pixmap_ref_cairo_surface;
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drawable_class->create_cairo_surface = gdk_pixmap_create_cairo_surface;
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}
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static void
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gdk_pixmap_finalize (GObject *object)
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{
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GdkPixmapObject *obj = (GdkPixmapObject *) object;
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g_object_unref (obj->impl);
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obj->impl = NULL;
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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GdkPixmap *
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gdk_pixmap_new (GdkDrawable *drawable,
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gint width,
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gint height,
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gint depth)
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{
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GdkDrawable *source_drawable;
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if (drawable)
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source_drawable = _gdk_drawable_get_source_drawable (drawable);
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else
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source_drawable = NULL;
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return _gdk_pixmap_new (source_drawable, width, height, depth);
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}
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GdkPixmap *
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gdk_bitmap_create_from_data (GdkDrawable *drawable,
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const gchar *data,
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gint width,
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gint height)
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{
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GdkDrawable *source_drawable;
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if (drawable)
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source_drawable = _gdk_drawable_get_source_drawable (drawable);
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else
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source_drawable = NULL;
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return _gdk_bitmap_create_from_data (source_drawable, data, width, height);
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}
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GdkPixmap*
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gdk_pixmap_create_from_data (GdkDrawable *drawable,
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const gchar *data,
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gint width,
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gint height,
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gint depth,
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const GdkColor *fg,
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const GdkColor *bg)
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{
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GdkDrawable *source_drawable;
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source_drawable = _gdk_drawable_get_source_drawable (drawable);
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return _gdk_pixmap_create_from_data (source_drawable,
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data, width, height,
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depth, fg,bg);
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}
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static void
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gdk_pixmap_real_get_size (GdkDrawable *drawable,
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gint *width,
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gint *height)
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{
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g_return_if_fail (GDK_IS_PIXMAP (drawable));
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gdk_drawable_get_size (GDK_DRAWABLE (((GdkPixmapObject*)drawable)->impl),
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width, height);
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}
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static GdkVisual*
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gdk_pixmap_real_get_visual (GdkDrawable *drawable)
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{
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GdkColormap *colormap;
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g_return_val_if_fail (GDK_IS_PIXMAP (drawable), NULL);
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colormap = gdk_drawable_get_colormap (drawable);
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return colormap ? gdk_colormap_get_visual (colormap) : NULL;
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}
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static gint
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gdk_pixmap_real_get_depth (GdkDrawable *drawable)
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{
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gint depth;
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g_return_val_if_fail (GDK_IS_PIXMAP (drawable), 0);
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depth = GDK_PIXMAP_OBJECT (drawable)->depth;
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return depth;
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}
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static void
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gdk_pixmap_real_set_colormap (GdkDrawable *drawable,
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GdkColormap *cmap)
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{
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g_return_if_fail (GDK_IS_PIXMAP (drawable));
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gdk_drawable_set_colormap (((GdkPixmapObject*)drawable)->impl, cmap);
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}
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static GdkColormap*
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gdk_pixmap_real_get_colormap (GdkDrawable *drawable)
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{
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g_return_val_if_fail (GDK_IS_PIXMAP (drawable), NULL);
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return gdk_drawable_get_colormap (((GdkPixmapObject*)drawable)->impl);
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}
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static cairo_surface_t *
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gdk_pixmap_ref_cairo_surface (GdkDrawable *drawable)
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{
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return _gdk_drawable_ref_cairo_surface (((GdkPixmapObject*)drawable)->impl);
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}
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static cairo_surface_t *
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gdk_pixmap_create_cairo_surface (GdkDrawable *drawable,
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int width,
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int height)
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{
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return _gdk_windowing_create_cairo_surface (GDK_PIXMAP_OBJECT(drawable)->impl,
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width, height);
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}
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static GdkBitmap *
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make_solid_mask (GdkScreen *screen, gint width, gint height)
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{
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GdkBitmap *bitmap;
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cairo_t *cr;
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bitmap = gdk_pixmap_new (gdk_screen_get_root_window (screen),
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width, height, 1);
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cr = gdk_cairo_create (bitmap);
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cairo_paint (cr);
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cairo_destroy (cr);
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return bitmap;
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}
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#define PACKED_COLOR(c) ((((c)->red & 0xff00) << 8) | \
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((c)->green & 0xff00) | \
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((c)->blue >> 8))
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static GdkPixmap *
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gdk_pixmap_colormap_new_from_pixbuf (GdkColormap *colormap,
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GdkBitmap **mask,
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const GdkColor *transparent_color,
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GdkPixbuf *pixbuf)
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{
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GdkPixmap *pixmap;
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GdkPixbuf *render_pixbuf;
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cairo_t *cr;
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GdkScreen *screen = gdk_colormap_get_screen (colormap);
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pixmap = gdk_pixmap_new (gdk_screen_get_root_window (screen),
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gdk_pixbuf_get_width (pixbuf),
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gdk_pixbuf_get_height (pixbuf),
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gdk_colormap_get_visual (colormap)->depth);
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gdk_drawable_set_colormap (pixmap, colormap);
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if (transparent_color)
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{
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guint32 packed_color = PACKED_COLOR (transparent_color);
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render_pixbuf = gdk_pixbuf_composite_color_simple (pixbuf,
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gdk_pixbuf_get_width (pixbuf),
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gdk_pixbuf_get_height (pixbuf),
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GDK_INTERP_NEAREST,
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255, 16, packed_color, packed_color);
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}
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else
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render_pixbuf = pixbuf;
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cr = gdk_cairo_create (pixmap);
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gdk_cairo_set_source_pixbuf (cr, render_pixbuf, 0, 0);
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cairo_paint (cr);
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cairo_destroy (cr);
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if (render_pixbuf != pixbuf)
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g_object_unref (render_pixbuf);
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if (mask)
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gdk_pixbuf_render_pixmap_and_mask_for_colormap (pixbuf, colormap, NULL, mask, 128);
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if (mask && !*mask)
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*mask = make_solid_mask (screen,
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gdk_pixbuf_get_width (pixbuf),
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gdk_pixbuf_get_height (pixbuf));
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return pixmap;
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}
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/**
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* gdk_pixmap_colormap_create_from_xpm:
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* @drawable: a #GdkDrawable, used to determine default values
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* for the new pixmap. Can be %NULL if @colormap is given.
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* @colormap: the #GdkColormap that the new pixmap will be use.
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* If omitted, the colormap for @window will be used.
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* @mask: a pointer to a place to store a bitmap representing
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* the transparency mask of the XPM file. Can be %NULL,
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* in which case transparency will be ignored.
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* @transparent_color: the color to be used for the pixels
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* that are transparent in the input file. Can be %NULL,
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* in which case a default color will be used.
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* @filename: the filename of a file containing XPM data.
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*
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* Create a pixmap from a XPM file using a particular colormap.
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*
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* Returns: (transfer none): the #GdkPixmap.
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*/
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GdkPixmap*
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gdk_pixmap_colormap_create_from_xpm (GdkDrawable *drawable,
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GdkColormap *colormap,
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GdkBitmap **mask,
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const GdkColor *transparent_color,
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const gchar *filename)
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{
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GdkPixbuf *pixbuf;
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GdkPixmap *pixmap;
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g_return_val_if_fail (drawable != NULL || colormap != NULL, NULL);
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g_return_val_if_fail (drawable == NULL || GDK_IS_DRAWABLE (drawable), NULL);
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g_return_val_if_fail (colormap == NULL || GDK_IS_COLORMAP (colormap), NULL);
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if (colormap == NULL)
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colormap = gdk_drawable_get_colormap (drawable);
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pixbuf = gdk_pixbuf_new_from_file (filename, NULL);
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if (!pixbuf)
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return NULL;
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pixmap = gdk_pixmap_colormap_new_from_pixbuf (colormap, mask, transparent_color, pixbuf);
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g_object_unref (pixbuf);
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return pixmap;
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}
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/**
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* gdk_pixmap_create_from_xpm:
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* @drawable: a #GdkDrawable, used to determine default values
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* for the new pixmap.
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* @mask: (out) a pointer to a place to store a bitmap representing
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* the transparency mask of the XPM file. Can be %NULL,
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* in which case transparency will be ignored.
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* @transparent_color: the color to be used for the pixels
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* that are transparent in the input file. Can be %NULL,
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* in which case a default color will be used.
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* @filename: the filename of a file containing XPM data.
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*
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* Create a pixmap from a XPM file.
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*
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* Returns: (transfer none): the #GdkPixmap
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*/
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GdkPixmap*
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gdk_pixmap_create_from_xpm (GdkDrawable *drawable,
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GdkBitmap **mask,
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const GdkColor *transparent_color,
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const gchar *filename)
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{
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return gdk_pixmap_colormap_create_from_xpm (drawable, NULL, mask,
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transparent_color, filename);
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}
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/**
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* gdk_pixmap_colormap_create_from_xpm_d:
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* @drawable: a #GdkDrawable, used to determine default values
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* for the new pixmap. Can be %NULL if @colormap is given.
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* @colormap: the #GdkColormap that the new pixmap will be use.
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* If omitted, the colormap for @window will be used.
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* @mask: a pointer to a place to store a bitmap representing
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* the transparency mask of the XPM file. Can be %NULL,
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* in which case transparency will be ignored.
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* @transparent_color: the color to be used for the pixels
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* that are transparent in the input file. Can be %NULL,
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* in which case a default color will be used.
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* @data: Pointer to a string containing the XPM data.
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*
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* Create a pixmap from data in XPM format using a particular
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* colormap.
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*
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* Returns: (transfer none): the #GdkPixmap.
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*/
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GdkPixmap*
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gdk_pixmap_colormap_create_from_xpm_d (GdkDrawable *drawable,
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GdkColormap *colormap,
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GdkBitmap **mask,
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const GdkColor *transparent_color,
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gchar **data)
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{
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GdkPixbuf *pixbuf;
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GdkPixmap *pixmap;
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g_return_val_if_fail (drawable != NULL || colormap != NULL, NULL);
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g_return_val_if_fail (drawable == NULL || GDK_IS_DRAWABLE (drawable), NULL);
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g_return_val_if_fail (colormap == NULL || GDK_IS_COLORMAP (colormap), NULL);
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if (colormap == NULL)
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colormap = gdk_drawable_get_colormap (drawable);
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pixbuf = gdk_pixbuf_new_from_xpm_data ((const char **)data);
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if (!pixbuf)
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return NULL;
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pixmap = gdk_pixmap_colormap_new_from_pixbuf (colormap, mask, transparent_color, pixbuf);
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g_object_unref (pixbuf);
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return pixmap;
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}
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/**
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* gdk_pixmap_create_from_xpm_d:
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* @drawable: a #GdkDrawable, used to determine default values
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* for the new pixmap.
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* @mask: (out): Pointer to a place to store a bitmap representing
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* the transparency mask of the XPM file. Can be %NULL,
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* in which case transparency will be ignored.
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* @transparent_color: This color will be used for the pixels
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* that are transparent in the input file. Can be %NULL
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* in which case a default color will be used.
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* @data: Pointer to a string containing the XPM data.
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*
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* Create a pixmap from data in XPM format.
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*
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* Returns: (transfer none): the #GdkPixmap.
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*/
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GdkPixmap*
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gdk_pixmap_create_from_xpm_d (GdkDrawable *drawable,
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GdkBitmap **mask,
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const GdkColor *transparent_color,
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gchar **data)
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{
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return gdk_pixmap_colormap_create_from_xpm_d (drawable, NULL, mask,
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transparent_color, data);
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}
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static GdkScreen*
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gdk_pixmap_real_get_screen (GdkDrawable *drawable)
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{
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return gdk_drawable_get_screen (GDK_PIXMAP_OBJECT (drawable)->impl);
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}
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