forked from AuroraMiddleware/gtk
Fix includes. (gdk_pixbuf_get_from_drawable): Implemented the zillion
1999-12-08 Federico Mena Quintero <federico@redhat.com> * gdk-pixbuf/gdk-pixbuf-drawable.c: Fix includes. (gdk_pixbuf_get_from_drawable): Implemented the zillion sanity checks and API definition. The body needs filling in and it needs to do the Right Thing(tm) for pixmaps plus the given colormap and windows and their own colormaps. * gdk-pixbuf/gdk-pixbuf.h: Added prototype for gdk_pixbuf_get_from_drawable(). Killed gdk-pixbuf-drawable.h. * gdk-pixbuf/Makefile.am: Re-added the gdk-pixbuf-drawable sources. * doc/tmpl/from-drawables.sgml: Populated. * doc/gdk-pixbuf.sgml: Added the from-drawables section. * doc/Makefile.am (tmpl_sources): Added tmpl/from-drawables.sgml. * doc/gdk-pixbuf-sections.txt: Added a section for getting pixbufs from drawables.
This commit is contained in:
Federico Mena Quintero
Arturo Espinosa
parent
a70843bab2
commit
c6f25c2de8
@ -19,6 +19,7 @@ TARGET_DIR=$(HTML_DIR)/$(DOC_MODULE)
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tmpl_sources = \
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tmpl/creating.sgml \
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tmpl/file-loading.sgml \
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tmpl/from-drawables.sgml \
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tmpl/gdk-pixbuf-loader.sgml \
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tmpl/gdk-pixbuf-unused.sgml \
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tmpl/gdk-pixbuf.sgml \
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@ -40,6 +40,11 @@ gdk_pixbuf_render_to_drawable
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gdk_pixbuf_render_threshold_alpha
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</SECTION>
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<SECTION>
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<FILE>from-drawables</FILE>
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gdk_pixbuf_get_from_drawable
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</SECTION>
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<SECTION>
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<FILE>util</FILE>
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gdk_pixbuf_add_alpha
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@ -4,6 +4,7 @@
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<!entity gdk-pixbuf-file-loading SYSTEM "sgml/file-loading.sgml">
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<!entity gdk-pixbuf-creating SYSTEM "sgml/creating.sgml">
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<!entity gdk-pixbuf-rendering SYSTEM "sgml/rendering.sgml">
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<!entity gdk-pixbuf-from-drawables SYSTEM "sgml/from-drawables.sgml">
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<!entity gdk-pixbuf-util SYSTEM "sgml/util.sgml">
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<!entity GnomeCanvasPixbuf SYSTEM "sgml/gnome-canvas-pixbuf.sgml">
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<!entity GdkPixbufLoader SYSTEM "sgml/gdk-pixbuf-loader.sgml">
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@ -47,6 +48,7 @@
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&gdk-pixbuf-file-loading;
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&gdk-pixbuf-creating;
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&gdk-pixbuf-rendering;
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&gdk-pixbuf-from-drawables;
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&gdk-pixbuf-util;
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&GnomeCanvasPixbuf;
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&GdkPixbufLoader;
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45
docs/reference/gdk-pixbuf/tmpl/from-drawables.sgml
Normal file
45
docs/reference/gdk-pixbuf/tmpl/from-drawables.sgml
Normal file
@ -0,0 +1,45 @@
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<!-- ##### SECTION Title ##### -->
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Drawables to Pixbufs
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<!-- ##### SECTION Short_Description ##### -->
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Getting parts of a drawable's image data into a pixbuf.
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<!-- ##### SECTION Long_Description ##### -->
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<para>
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The functions in this section allow you to take the image data
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from a GDK drawable and dump it into a #GdkPixbuf. This can be
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used for screenshots and other special effects. Note that these
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operations can be expensive, since the image data has to be
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transferred from the X server to the client program and converted.
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</para>
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<!-- ##### SECTION See_Also ##### -->
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<para>
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#GdkPixbuf, gdk_image_get()
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</para>
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<!-- ##### FUNCTION gdk_pixbuf_get_from_drawable ##### -->
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<para>
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</para>
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@dest:
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@src:
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@cmap:
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@src_x:
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@src_y:
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@dest_x:
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@dest_y:
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@width:
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@height:
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@Returns:
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<!--
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Local variables:
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mode: sgml
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sgml-parent-document: ("../gdk-pixbuf.sgml" "book" "refsect2" "")
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End:
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-->
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@ -2,7 +2,7 @@
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Rendering
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<!-- ##### SECTION Short_Description ##### -->
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Rendering a Pixbuf to a GDK Drawable.
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Rendering a pixbuf to a GDK drawable.
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<!-- ##### SECTION Long_Description ##### -->
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<para>
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@ -97,7 +97,6 @@ In the future it will do full alpha compositing.
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@width:
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@height:
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@alpha_threshold:
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<!--
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Local variables:
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mode: sgml
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@ -29,10 +29,11 @@ Utility and miscellaneous convenience functions.
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@b:
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@Returns:
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<!--
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Local variables:
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mode: sgml
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sgml-parent-document: ("../gdk-pixbuf.sgml" "book" "refsect2" "")
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End:
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-->
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@ -1,3 +1,25 @@
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1999-12-08 Federico Mena Quintero <federico@redhat.com>
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* gdk-pixbuf/gdk-pixbuf-drawable.c: Fix includes.
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(gdk_pixbuf_get_from_drawable): Implemented the zillion sanity
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checks and API definition. The body needs filling in and it needs
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to do the Right Thing(tm) for pixmaps plus the given colormap and
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windows and their own colormaps.
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* gdk-pixbuf/gdk-pixbuf.h: Added prototype for
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gdk_pixbuf_get_from_drawable(). Killed gdk-pixbuf-drawable.h.
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* gdk-pixbuf/Makefile.am: Re-added the gdk-pixbuf-drawable sources.
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* doc/tmpl/from-drawables.sgml: Populated.
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* doc/gdk-pixbuf.sgml: Added the from-drawables section.
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* doc/Makefile.am (tmpl_sources): Added tmpl/from-drawables.sgml.
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* doc/gdk-pixbuf-sections.txt: Added a section for getting pixbufs
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from drawables.
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1999-12-07 Federico Mena Quintero <federico@redhat.com>
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* doc/tmpl/gnome-canvas-pixbuf.sgml: Added clarification about
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@ -41,7 +41,6 @@ libexec_LTLIBRARIES = \
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#noinst_PROGRAMS = testpixbuf testpixbuf-drawable
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noinst_PROGRAMS = testpixbuf
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DEPS = libgdk_pixbuf.la
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INCLUDES = -I$(top_builddir)/gdk-pixbuf $(GLIB_CFLAGS) $(LIBART_CFLAGS) $(GTK_CFLAGS)
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AM_CPPFLAGS = "-DPIXBUF_LIBDIR=\"$(libexecdir)\""
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@ -50,11 +49,11 @@ LDADDS = libgdk_pixbuf.la $(LIBART_LIBS) $(GLIB_LIBS) $(GTK_LIBS)
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if INSIDE_GNOME_LIBS
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testpixbuf_LDADD = $(LDADDS) $(LIBART_LIBS) -lgmodule
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#testpixbuf_drawable_LDADD = $(LDADDS)
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else
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testpixbuf_LDADD = $(LDADDS) $(LIBART_LIBS) $(GNOME_LIBS) -lgmodule
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endif
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#testpixbuf_drawable_LDADD = $(LDADDS) $(GNOME_LIBS)
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endif
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GDK_PIXBUF_LIBS = $(LIBART_LIBS) $(GLIB_LIBS) $(GTK_LIBS)
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@ -74,14 +73,13 @@ libgdk_pixbufincludedir = $(includedir)/gdk-pixbuf
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libgdk_pixbuf_la_SOURCES = \
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gdk-pixbuf.c \
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gdk-pixbuf-data.c \
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gdk-pixbuf-drawable.c \
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gdk-pixbuf-io.c \
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gdk-pixbuf-loader.c \
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gdk-pixbuf-render.c \
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gdk-pixbuf-util.c \
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$(CANVAS_SOURCEFILES)
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# gdk-pixbuf-drawable.c \
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libgdk_pixbuf_la_LDFLAGS = -version-info 1:0:0
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libgdk_pixbufinclude_HEADERS = \
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@ -89,8 +87,6 @@ libgdk_pixbufinclude_HEADERS = \
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gdk-pixbuf-loader.h \
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$(CANVAS_HEADERFILES)
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# gdk-pixbuf-drawable.h \
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noinst_HEADERS = \
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gdk-pixbuf-io.h
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@ -1,10 +0,0 @@
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#ifndef _GDK_PIXBUF_DRAWABLE_H_
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#define _GDK_PIXBUF_DRAWABLE_H_
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#include <gdk/gdk.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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GdkPixbuf *gdk_pixbuf_rgb_from_drawable (GdkWindow *window, gint x, gint y, gint width, gint height);
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GdkPixbuf *gdk_pixbuf_rgba_from_drawable (GdkWindow *window, gint x, gint y, gint width, gint height);
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#endif /* _GDK_PIXBUF_DRAWABLE_H_ */
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@ -118,6 +118,19 @@ void gdk_pixbuf_render_to_drawable_alpha (GdkPixbuf *pixbuf, GdkDrawable *drawab
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GdkRgbDither dither,
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int x_dither, int y_dither);
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#if 0
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/* Fetching a region from a drawable */
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GdkPixbuf *gdk_pixbuf_get_from_drawable (GdkPixbuf *dest,
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GdkDrawable *src, GdkColormap *cmap,
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int src_x, int src_y,
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int dest_x, int dest_y,
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int width, int height);
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#endif
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#ifdef __cplusplus
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@ -1,28 +1,38 @@
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/*
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* Creates an GdkPixbuf from a Drawable
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/* GdkPixbuf library - convert X drawable information to RGB
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*
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* Authors:
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* Copyright (C) 1999 Michael Zucchi
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*
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* Authors: Michael Zucchi <zucchi@zedzone.mmc.com.au>
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* Cody Russell <bratsche@dfw.net>
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* Michael Zucchi <zucchi@zedzone.mmc.com.au>
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*
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* This is licensed software, see the file COPYING for
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* details.
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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 Library 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library 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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#include <config.h>
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#include <stdio.h>
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#include <string.h>
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#include <glib.h>
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#include <gmodule.h>
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#include "gdk-pixbuf.h"
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#include "gdk-pixbuf-drawable.h"
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#if (G_BYTE_ORDER == G_LITTLE_ENDIAN)
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#define LITTLE
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#endif
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#define d(x)
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static unsigned long mask_table[] = {
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0x00000000, 0x00000001, 0x00000003, 0x00000007,
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0x0000000f, 0x0000001f, 0x0000003f, 0x0000007f,
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@ -35,11 +45,14 @@ static unsigned long mask_table[] = {
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0xffffffff
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};
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/*
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convert 1 bits-pixel data
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no alpha
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*/
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static void rgb1(GdkImage *image, art_u8 *pixels, int rowstride)
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static void
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rgb1 (GdkImage *image, art_u8 *pixels, int rowstride)
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{
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int xx, yy;
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int width, height;
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@ -80,7 +93,8 @@ static void rgb1(GdkImage *image, art_u8 *pixels, int rowstride)
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convert 1 bits/pixel data
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with alpha
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*/
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static void rgb1a(GdkImage *image, art_u8 *pixels, int rowstride)
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static void
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rgb1a (GdkImage *image, art_u8 *pixels, int rowstride)
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{
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int xx, yy;
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int width, height;
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@ -134,7 +148,8 @@ static void rgb1a(GdkImage *image, art_u8 *pixels, int rowstride)
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convert 8 bits/pixel data
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no alpha
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*/
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static void rgb8(GdkImage *image, art_u8 *pixels, int rowstride)
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static void
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rgb8 (GdkImage *image, art_u8 *pixels, int rowstride)
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{
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int xx, yy;
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int width, height;
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@ -173,7 +188,8 @@ static void rgb8(GdkImage *image, art_u8 *pixels, int rowstride)
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convert 8 bits/pixel data
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with alpha
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*/
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static void rgb8a(GdkImage *image, art_u8 *pixels, int rowstride)
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static void
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rgb8a (GdkImage *image, art_u8 *pixels, int rowstride)
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{
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int xx, yy;
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int width, height;
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@ -226,7 +242,8 @@ static void rgb8a(GdkImage *image, art_u8 *pixels, int rowstride)
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no alpha
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data in lsb format
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*/
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static void rgb565lsb(GdkImage *image, art_u8 *pixels, int rowstride)
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static void
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rgb565lsb (GdkImage *image, art_u8 *pixels, int rowstride)
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{
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int xx, yy;
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int width, height;
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@ -290,7 +307,8 @@ static void rgb565lsb(GdkImage *image, art_u8 *pixels, int rowstride)
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no alpha
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data in msb format
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*/
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static void rgb565msb(GdkImage *image, art_u8 *pixels, int rowstride)
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static void
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rgb565msb (GdkImage *image, art_u8 *pixels, int rowstride)
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{
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int xx, yy;
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int width, height;
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@ -354,7 +372,8 @@ static void rgb565msb(GdkImage *image, art_u8 *pixels, int rowstride)
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with alpha
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data in lsb format
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*/
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static void rgb565alsb(GdkImage *image, art_u8 *pixels, int rowstride)
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static void
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rgb565alsb (GdkImage *image, art_u8 *pixels, int rowstride)
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{
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int xx, yy;
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int width, height;
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@ -406,7 +425,8 @@ static void rgb565alsb(GdkImage *image, art_u8 *pixels, int rowstride)
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with alpha
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data in msb format
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*/
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static void rgb565amsb(GdkImage *image, art_u8 *pixels, int rowstride)
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static void
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rgb565amsb (GdkImage *image, art_u8 *pixels, int rowstride)
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{
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int xx, yy;
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int width, height;
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@ -454,7 +474,8 @@ static void rgb565amsb(GdkImage *image, art_u8 *pixels, int rowstride)
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no alpha
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data in lsb format
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*/
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static void rgb555lsb(GdkImage *image, art_u8 *pixels, int rowstride)
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static void
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rgb555lsb (GdkImage *image, art_u8 *pixels, int rowstride)
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{
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int xx, yy;
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int width, height;
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@ -518,7 +539,8 @@ static void rgb555lsb(GdkImage *image, art_u8 *pixels, int rowstride)
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no alpha
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data in msb format
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*/
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static void rgb555msb(GdkImage *image, art_u8 *pixels, int rowstride)
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static void
|
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rgb555msb (GdkImage *image, art_u8 *pixels, int rowstride)
|
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{
|
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int xx, yy;
|
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int width, height;
|
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@ -578,7 +600,8 @@ static void rgb555msb(GdkImage *image, art_u8 *pixels, int rowstride)
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with alpha
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data in lsb format
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*/
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static void rgb555alsb(GdkImage *image, art_u8 *pixels, int rowstride)
|
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static void
|
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rgb555alsb (GdkImage *image, art_u8 *pixels, int rowstride)
|
||||
{
|
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int xx, yy;
|
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int width, height;
|
||||
@ -630,7 +653,8 @@ static void rgb555alsb(GdkImage *image, art_u8 *pixels, int rowstride)
|
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with alpha
|
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data in msb format
|
||||
*/
|
||||
static void rgb555amsb(GdkImage *image, art_u8 *pixels, int rowstride)
|
||||
static void
|
||||
rgb555amsb (GdkImage *image, art_u8 *pixels, int rowstride)
|
||||
{
|
||||
int xx, yy;
|
||||
int width, height;
|
||||
@ -678,7 +702,8 @@ static void rgb555amsb(GdkImage *image, art_u8 *pixels, int rowstride)
|
||||
}
|
||||
|
||||
|
||||
static void rgb888alsb(GdkImage *image, art_u8 *pixels, int rowstride)
|
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static void
|
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rgb888alsb (GdkImage *image, art_u8 *pixels, int rowstride)
|
||||
{
|
||||
int xx, yy;
|
||||
int width, height;
|
||||
@ -710,7 +735,8 @@ static void rgb888alsb(GdkImage *image, art_u8 *pixels, int rowstride)
|
||||
}
|
||||
}
|
||||
|
||||
static void rgb888lsb(GdkImage *image, art_u8 *pixels, int rowstride)
|
||||
static void
|
||||
rgb888lsb (GdkImage *image, art_u8 *pixels, int rowstride)
|
||||
{
|
||||
int xx, yy;
|
||||
int width, height;
|
||||
@ -739,7 +765,8 @@ static void rgb888lsb(GdkImage *image, art_u8 *pixels, int rowstride)
|
||||
}
|
||||
}
|
||||
|
||||
static void rgb888amsb(GdkImage *image, art_u8 *pixels, int rowstride)
|
||||
static void
|
||||
rgb888amsb (GdkImage *image, art_u8 *pixels, int rowstride)
|
||||
{
|
||||
int xx, yy;
|
||||
int width, height;
|
||||
@ -786,7 +813,8 @@ static void rgb888amsb(GdkImage *image, art_u8 *pixels, int rowstride)
|
||||
}
|
||||
}
|
||||
|
||||
static void rgb888msb(GdkImage *image, art_u8 *pixels, int rowstride)
|
||||
static void
|
||||
rgb888msb (GdkImage *image, art_u8 *pixels, int rowstride)
|
||||
{
|
||||
int xx, yy;
|
||||
int width, height;
|
||||
@ -829,22 +857,37 @@ static cfunc convert_map[] = {
|
||||
/*
|
||||
perform actual conversion
|
||||
*/
|
||||
static void rgbconvert(GdkImage *image, art_u8 *pixels, int rowstride, int alpha)
|
||||
static void
|
||||
rgbconvert (GdkImage *image, art_u8 *pixels, int rowstride, int alpha)
|
||||
{
|
||||
int index = (image->byte_order == GDK_MSB_FIRST)
|
||||
| (alpha!=0) << 1;
|
||||
int index = (image->byte_order == GDK_MSB_FIRST) | (alpha != 0) << 1;
|
||||
int bank=0;
|
||||
|
||||
switch (image->depth) {
|
||||
case 1: bank = 0; break;
|
||||
case 8: bank = 1; break;
|
||||
case 15: bank = 2; break;
|
||||
case 16: bank = 3; break;
|
||||
case 1:
|
||||
bank = 0;
|
||||
break;
|
||||
|
||||
case 8:
|
||||
bank = 1;
|
||||
break;
|
||||
|
||||
case 15:
|
||||
bank = 2;
|
||||
break;
|
||||
|
||||
case 16:
|
||||
bank = 3;
|
||||
break;
|
||||
|
||||
case 24:
|
||||
case 32: bank = 4; break;
|
||||
case 32:
|
||||
bank = 4;
|
||||
break;
|
||||
}
|
||||
|
||||
index |= bank << 2;
|
||||
convert_map[index](image, pixels, rowstride);
|
||||
(* convert_map[index]) (image, pixels, rowstride);
|
||||
}
|
||||
|
||||
static GdkPixbuf *
|
||||
@ -892,24 +935,139 @@ gdk_pixbuf_from_drawable_core (GdkPixmap * window, gint x, gint y, gint width,
|
||||
return gdk_pixbuf_new_from_art_pixbuf (art_pixbuf);
|
||||
}
|
||||
|
||||
/* Public functions */
|
||||
|
||||
|
||||
/* Exported functions */
|
||||
|
||||
/**
|
||||
* gdk_pixbuf_get_from_drawable:
|
||||
* @dest: Destination pixbuf, or NULL if a new pixbuf should be created.
|
||||
* @src: Source drawable.
|
||||
* @cmap: A colormap if @src is a pixmap. If it is a window, this argument will
|
||||
* be ignored.
|
||||
* @src_x: Source X coordinate within drawable.
|
||||
* @src_y: Source Y coordinate within drawable.
|
||||
* @dest_x: Destination X coordinate in pixbuf, or 0 if @dest is NULL.
|
||||
* @dest_y: Destination Y coordinate in pixbuf, or 0 if @dest is NULL.
|
||||
* @width: Width in pixels of region to get.
|
||||
* @height: Height in pixels of region to get.
|
||||
*
|
||||
* Transfers image data from a Gdk drawable and converts it to an RGB(A)
|
||||
* representation inside a GdkPixbuf.
|
||||
*
|
||||
* If the drawable @src is a pixmap, then a suitable colormap must be specified,
|
||||
* since pixmaps are just blocks of pixel data without an associated colormap.
|
||||
* If the drawable is a window, the @cmap argument will be ignored and the
|
||||
* window's own colormap will be used instead.
|
||||
*
|
||||
* If the specified destination pixbuf @dest is #NULL, then this function will
|
||||
* create an RGB pixbuf with 8 bits per channel and no alpha, with the same size
|
||||
* specified by the @width and @height arguments. In this case, the @dest_x and
|
||||
* @dest_y arguments must be specified as 0, otherwise the function will return
|
||||
* #NULL. If the specified destination pixbuf is not NULL and it contains alpha
|
||||
* information, then the filled pixels will be set to full opacity.
|
||||
*
|
||||
* If the specified drawable is a pixmap, then the requested source rectangle
|
||||
* must be completely contained within the pixmap, otherwise the function will
|
||||
* return #NULL.
|
||||
*
|
||||
* If the specified drawable is a window, then it must be viewable, i.e. all of
|
||||
* its ancestors up to the root window must be mapped. Also, the specified
|
||||
* source rectangle must be completely contained within the window and within
|
||||
* the screen. If regions of the window are obscured by noninferior windows, the
|
||||
* contents of those regions are undefined. The contents of regions obscured by
|
||||
* inferior windows of a different depth than that of the source window will also
|
||||
* be undefined.
|
||||
*
|
||||
* Return value: The same pixbuf as @dest if it was non-NULL, or a newly-created
|
||||
* pixbuf with a reference count of 1 if no destination pixbuf was specified.
|
||||
**/
|
||||
GdkPixbuf *
|
||||
gdk_pixbuf_rgb_from_drawable (GdkWindow * window, gint x, gint y, gint width,
|
||||
gint height)
|
||||
gdk_pixbuf_get_from_drawable (GdkPixbuf *dest,
|
||||
GdkDrawable *src, GdkColormap *cmap,
|
||||
int src_x, int src_y,
|
||||
int dest_x, int dest_y,
|
||||
int width, int height)
|
||||
{
|
||||
return gdk_pixbuf_from_drawable_core (window, x, y, width, height, 0);
|
||||
}
|
||||
GdkWindowType window_type;
|
||||
gint src_width, src_height;
|
||||
ArtPixBuf *apb;
|
||||
|
||||
GdkPixbuf *
|
||||
gdk_pixbuf_rgba_from_drawable (GdkWindow * window, gint x, gint y, gint width,
|
||||
gint height)
|
||||
{
|
||||
return gdk_pixbuf_from_drawable_core (window, x, y, width, height, 1);
|
||||
}
|
||||
/* General sanity checks */
|
||||
|
||||
/*
|
||||
* Local variables:
|
||||
* c-basic-offset: 8
|
||||
* End:
|
||||
g_return_val_if_fail (src != NULL, NULL);
|
||||
|
||||
window_type = gdk_window_get_type (src);
|
||||
|
||||
if (window_type == GDK_WINDOW_PIXMAP)
|
||||
g_return_val_if_fail (cmap != NULL, NULL);
|
||||
else
|
||||
/* FIXME: this is not perfect, since is_viewable() only tests
|
||||
* recursively up the Gdk parent window tree, but stops at
|
||||
* foreign windows or Gdk toplevels. I.e. if a window manager
|
||||
* unmapped one of its own windows, this won't work.
|
||||
*/
|
||||
g_return_val_if_fail (gdk_window_is_viewable (src), NULL);
|
||||
|
||||
if (!dest)
|
||||
g_return_val_if_fail (dest_x == 0 && dest_y == 0, NULL);
|
||||
else {
|
||||
apb = dest->art_pixbuf;
|
||||
|
||||
g_return_val_if_fail (apb->format == ART_PIX_RGB, NULL);
|
||||
g_return_val_if_fail (apb->n_channels == 3 || apb->n_channels == 4, NULL);
|
||||
g_return_val_if_fail (apb->bits_per_sample == 8, NULL);
|
||||
}
|
||||
|
||||
/* Coordinate sanity checks */
|
||||
|
||||
gdk_window_get_size (src, &src_width, &src_height);
|
||||
|
||||
g_return_val_if_fail (src_x >= 0 && src_y >= 0, NULL);
|
||||
g_return_val_if_fail (src_x + width <= src_width && src_y + height <= src_height, NULL);
|
||||
|
||||
if (dest) {
|
||||
g_return_val_if_fail (dest_x >= 0 && dest_y >= 0, NULL);
|
||||
g_return_val_if_fail (dest_x + width <= apb->width, NULL);
|
||||
g_return_val_if_fail (dest_y + height <= apb->height, NULL);
|
||||
}
|
||||
|
||||
if (window_type != GDK_WINDOW_PIXMAP) {
|
||||
int ret;
|
||||
gint src_xorigin, src_yorigin;
|
||||
int screen_width, screen_height;
|
||||
int screen_srcx, screen_srcy;
|
||||
|
||||
ret = gdk_window_get_origin (src, &src_xorigin, &src_yorigin);
|
||||
g_return_val_if_fail (ret != FALSE, NULL);
|
||||
|
||||
screen_width = gdk_screen_width ();
|
||||
screen_height = gdk_screen_height ();
|
||||
|
||||
screen_srcx = src_xorigin + src_x;
|
||||
screen_srcy = src_yorigin + src_y;
|
||||
|
||||
g_return_val_if_fail (screen_srcx >= 0 && screen_srcy >= 0, NULL);
|
||||
g_return_val_if_fail (screen_srcx + width <= screen_width, NULL);
|
||||
g_return_val_if_fail (screen_srcy + height <= screen_height, NULL);
|
||||
}
|
||||
|
||||
/* Create the pixbuf if needed */
|
||||
|
||||
if (!dest) {
|
||||
dest = gdk_pixbuf_new (ART_PIX_RGB, FALSE, 8, width, height);
|
||||
if (!dest)
|
||||
return NULL;
|
||||
|
||||
apb = dest->art_pixbuf;
|
||||
}
|
||||
|
||||
/* Get the colormap if needed */
|
||||
|
||||
if (window_type != GDK_WINDOW_PIXMAP)
|
||||
cmap = gdk_window_get_colormap (src);
|
||||
|
||||
/* FIXME: fill in the body here */
|
||||
|
||||
return dest;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user