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4fe58c01f9
2000-04-15 Havoc Pennington <hp@pobox.com> * gdk/gdkdnd.h: clean up enum format, remove extra comma, this keeps scanner scripts from getting confused. * gdk/gdkdraw.c (gdk_drawable_get_data): This should return the data, rather than void
448 lines
10 KiB
C
448 lines
10 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 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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/*
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* Modified by the GTK+ Team and others 1997-1999. 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 "gdkdrawable.h"
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#include "gdkinternals.h"
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#include "gdkwindow.h"
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/* Manipulation of drawables
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*/
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GdkDrawable *
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gdk_drawable_alloc (void)
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{
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GdkDrawablePrivate *private = g_new (GdkDrawablePrivate, 1);
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GdkDrawable *drawable = (GdkDrawable*) private;
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drawable->user_data = NULL;
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private->ref_count = 1;
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private->destroyed = FALSE;
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private->klass = NULL;
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private->klass_data = NULL;
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private->window_type = GDK_WINDOW_CHILD;
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private->width = 1;
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private->height = 1;
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private->depth = 0;
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private->colormap = NULL;
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return drawable;
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}
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void
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gdk_drawable_set_data (GdkDrawable *drawable,
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const gchar *key,
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gpointer data,
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GDestroyNotify destroy_func)
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{
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g_dataset_set_data_full (drawable, key, data, destroy_func);
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}
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gpointer
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gdk_drawable_get_data (GdkDrawable *drawable,
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const gchar *key)
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{
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return g_dataset_get_data (drawable, key);
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}
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GdkDrawableType
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gdk_drawable_get_type (GdkDrawable *drawable)
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{
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g_return_val_if_fail (drawable != NULL, (GdkDrawableType) -1);
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return GDK_DRAWABLE_TYPE (drawable);
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}
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void
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gdk_drawable_get_size (GdkDrawable *drawable,
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gint *width,
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gint *height)
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{
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GdkDrawablePrivate *drawable_private;
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g_return_if_fail (drawable != NULL);
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drawable_private = (GdkDrawablePrivate*) drawable;
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if (width)
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*width = drawable_private->width;
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if (height)
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*height = drawable_private->height;
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}
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GdkVisual*
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gdk_drawable_get_visual (GdkDrawable *drawable)
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{
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GdkColormap *colormap;
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g_return_val_if_fail (drawable != NULL, 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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gint
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gdk_drawable_get_depth (GdkDrawable *drawable)
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{
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GdkDrawablePrivate *private = (GdkDrawablePrivate *)drawable;
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g_return_val_if_fail (drawable != NULL, 0);
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return private->depth;
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}
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GdkDrawable*
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gdk_drawable_ref (GdkDrawable *drawable)
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{
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GdkDrawablePrivate *private = (GdkDrawablePrivate *)drawable;
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g_return_val_if_fail (drawable != NULL, NULL);
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private->ref_count += 1;
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return drawable;
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}
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void
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gdk_drawable_unref (GdkDrawable *drawable)
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{
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GdkDrawablePrivate *private = (GdkDrawablePrivate *)drawable;
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g_return_if_fail (drawable != NULL);
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g_return_if_fail (private->ref_count > 0);
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private->ref_count -= 1;
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if (private->ref_count == 0)
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{
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private->klass->destroy (drawable);
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g_dataset_destroy (drawable);
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g_free (drawable);
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}
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}
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/* Drawing
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*/
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void
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gdk_draw_point (GdkDrawable *drawable,
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GdkGC *gc,
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gint x,
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gint y)
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{
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GdkGCPrivate *gc_private;
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GdkPoint point;
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g_return_if_fail (drawable != NULL);
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g_return_if_fail (gc != NULL);
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if (GDK_DRAWABLE_DESTROYED (drawable))
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return;
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gc_private = (GdkGCPrivate*) gc;
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point.x = x;
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point.y = y;
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((GdkDrawablePrivate *)drawable)->klass->draw_points (drawable, gc, &point, 1);
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}
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void
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gdk_draw_line (GdkDrawable *drawable,
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GdkGC *gc,
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gint x1,
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gint y1,
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gint x2,
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gint y2)
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{
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GdkGCPrivate *gc_private;
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GdkSegment segment;
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g_return_if_fail (drawable != NULL);
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g_return_if_fail (gc != NULL);
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if (GDK_DRAWABLE_DESTROYED (drawable))
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return;
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gc_private = (GdkGCPrivate*) gc;
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segment.x1 = x1;
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segment.y1 = y1;
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segment.x2 = x2;
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segment.y2 = y2;
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((GdkDrawablePrivate *)drawable)->klass->draw_segments (drawable, gc, &segment, 1);
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}
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void
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gdk_draw_rectangle (GdkDrawable *drawable,
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GdkGC *gc,
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gint filled,
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gint x,
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gint y,
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gint width,
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gint height)
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{
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GdkDrawablePrivate *drawable_private;
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g_return_if_fail (drawable != NULL);
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g_return_if_fail (gc != NULL);
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drawable_private = (GdkDrawablePrivate*) drawable;
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if (GDK_DRAWABLE_DESTROYED (drawable))
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return;
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if (width < 0)
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width = drawable_private->width;
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if (height < 0)
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height = drawable_private->height;
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((GdkDrawablePrivate *)drawable)->klass->draw_rectangle (drawable, gc, filled, x, y,
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width, height);
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}
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void
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gdk_draw_arc (GdkDrawable *drawable,
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GdkGC *gc,
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gint filled,
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gint x,
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gint y,
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gint width,
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gint height,
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gint angle1,
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gint angle2)
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{
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GdkDrawablePrivate *drawable_private;
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GdkGCPrivate *gc_private;
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g_return_if_fail (drawable != NULL);
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g_return_if_fail (gc != NULL);
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drawable_private = (GdkDrawablePrivate*) drawable;
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if (GDK_DRAWABLE_DESTROYED (drawable))
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return;
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gc_private = (GdkGCPrivate*) gc;
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if (width < 0)
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width = drawable_private->width;
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if (height < 0)
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height = drawable_private->height;
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((GdkDrawablePrivate *)drawable)->klass->draw_arc (drawable, gc, filled,
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x, y, width, height, angle1, angle2);
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}
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void
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gdk_draw_polygon (GdkDrawable *drawable,
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GdkGC *gc,
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gint filled,
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GdkPoint *points,
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gint npoints)
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{
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g_return_if_fail (drawable != NULL);
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g_return_if_fail (gc != NULL);
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if (GDK_DRAWABLE_DESTROYED (drawable))
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return;
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((GdkDrawablePrivate *)drawable)->klass->draw_polygon (drawable, gc, filled,
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points, npoints);
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}
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/* gdk_draw_string
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*
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* Modified by Li-Da Lho to draw 16 bits and Multibyte strings
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*
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* Interface changed: add "GdkFont *font" to specify font or fontset explicitely
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*/
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void
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gdk_draw_string (GdkDrawable *drawable,
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GdkFont *font,
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GdkGC *gc,
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gint x,
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gint y,
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const gchar *string)
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{
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gdk_draw_text (drawable, font, gc, x, y, string, _gdk_font_strlen (font, string));
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}
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/* gdk_draw_text
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*
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* Modified by Li-Da Lho to draw 16 bits and Multibyte strings
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*
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* Interface changed: add "GdkFont *font" to specify font or fontset explicitely
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*/
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void
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gdk_draw_text (GdkDrawable *drawable,
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GdkFont *font,
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GdkGC *gc,
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gint x,
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gint y,
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const gchar *text,
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gint text_length)
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{
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g_return_if_fail (drawable != NULL);
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g_return_if_fail (font != NULL);
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g_return_if_fail (gc != NULL);
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g_return_if_fail (text != NULL);
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((GdkDrawablePrivate *)drawable)->klass->draw_text (drawable, font, gc, x, y, text, text_length);
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}
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void
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gdk_draw_text_wc (GdkDrawable *drawable,
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GdkFont *font,
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GdkGC *gc,
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gint x,
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gint y,
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const GdkWChar *text,
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gint text_length)
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{
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g_return_if_fail (drawable != NULL);
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g_return_if_fail (font != NULL);
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g_return_if_fail (gc != NULL);
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g_return_if_fail (text != NULL);
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((GdkDrawablePrivate *)drawable)->klass->draw_text_wc (drawable, font, gc, x, y, text, text_length);
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}
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void
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gdk_draw_drawable (GdkDrawable *drawable,
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GdkGC *gc,
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GdkDrawable *src,
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gint xsrc,
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gint ysrc,
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gint xdest,
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gint ydest,
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gint width,
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gint height)
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{
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g_return_if_fail (drawable != NULL);
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g_return_if_fail (src != NULL);
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g_return_if_fail (gc != NULL);
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if (GDK_DRAWABLE_DESTROYED (drawable) || GDK_DRAWABLE_DESTROYED (src))
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return;
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if (width == -1)
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width = ((GdkDrawablePrivate *)src)->width;
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if (height == -1)
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height = ((GdkDrawablePrivate *)src)->height;
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((GdkDrawablePrivate *)drawable)->klass->draw_drawable (drawable, gc, src,
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xsrc, ysrc, xdest, ydest,
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width, height);
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}
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void
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gdk_draw_image (GdkDrawable *drawable,
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GdkGC *gc,
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GdkImage *image,
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gint xsrc,
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gint ysrc,
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gint xdest,
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gint ydest,
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gint width,
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gint height)
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{
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GdkImagePrivate *image_private;
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g_return_if_fail (drawable != NULL);
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g_return_if_fail (image != NULL);
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g_return_if_fail (gc != NULL);
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image_private = (GdkImagePrivate*) image;
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if (width == -1)
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width = image->width;
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if (height == -1)
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height = image->height;
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if (GDK_IS_WINDOW (drawable))
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_gdk_window_draw_image (drawable, gc, image, xsrc, ysrc,
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xdest, ydest, width, height);
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else
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image_private->klass->image_put (image, drawable, gc, xsrc, ysrc,
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xdest, ydest, width, height);
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}
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void
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gdk_draw_points (GdkDrawable *drawable,
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GdkGC *gc,
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GdkPoint *points,
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gint npoints)
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{
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g_return_if_fail (drawable != NULL);
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g_return_if_fail ((points != NULL) && (npoints > 0));
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g_return_if_fail (gc != NULL);
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g_return_if_fail (npoints >= 0);
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if (npoints == 0)
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return;
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if (GDK_DRAWABLE_DESTROYED (drawable))
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return;
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((GdkDrawablePrivate *)drawable)->klass->draw_points (drawable, gc, points, npoints);
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}
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void
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gdk_draw_segments (GdkDrawable *drawable,
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GdkGC *gc,
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GdkSegment *segs,
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gint nsegs)
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{
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g_return_if_fail (drawable != NULL);
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if (nsegs == 0)
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return;
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g_return_if_fail (segs != NULL);
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g_return_if_fail (gc != NULL);
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g_return_if_fail (nsegs >= 0);
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if (GDK_DRAWABLE_DESTROYED (drawable))
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return;
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((GdkDrawablePrivate *)drawable)->klass->draw_segments (drawable, gc, segs, nsegs);
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}
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void
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gdk_draw_lines (GdkDrawable *drawable,
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GdkGC *gc,
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GdkPoint *points,
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gint npoints)
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{
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g_return_if_fail (drawable != NULL);
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g_return_if_fail (points != NULL);
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g_return_if_fail (gc != NULL);
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g_return_if_fail (npoints >= 0);
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if (npoints == 0)
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return;
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if (GDK_DRAWABLE_DESTROYED (drawable))
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return;
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((GdkDrawablePrivate *)drawable)->klass->draw_lines (drawable, gc, points, npoints);
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}
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