gtk/gdk/gdkdraw.c
Tor Lillqvist 273089af2a Fix copy&paste error: Call the backend's draw_lines method, not
2000-01-05  Tor Lillqvist  <tml@iki.fi>

* gdk/gdkdraw.c (gdk_draw_lines): Fix copy&paste error: Call the
backend's draw_lines method, not draw_points.
2000-01-05 17:05:30 +00:00

432 lines
10 KiB
C

/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-1999. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "gdkdrawable.h"
#include "gdkprivate.h"
#include "gdkwindow.h"
/* Manipulation of drawables
*/
GdkDrawable *
gdk_drawable_alloc (void)
{
GdkDrawablePrivate *private = g_new (GdkDrawablePrivate, 1);
GdkDrawable *drawable = (GdkDrawable*) private;
drawable->user_data = NULL;
private->ref_count = 1;
private->destroyed = FALSE;
private->klass = NULL;
private->klass_data = NULL;
private->window_type = GDK_WINDOW_CHILD;
private->width = 1;
private->height = 1;
private->colormap = NULL;
return drawable;
}
void
gdk_drawable_set_data (GdkDrawable *drawable,
const gchar *key,
gpointer data,
GDestroyNotify destroy_func)
{
g_dataset_set_data_full (drawable, key, data, destroy_func);
}
void
gdk_drawable_get_data (GdkDrawable *drawable,
const gchar *key)
{
g_dataset_get_data (drawable, key);
}
GdkDrawableType
gdk_drawable_get_type (GdkDrawable *drawable)
{
g_return_val_if_fail (drawable != NULL, (GdkDrawableType) -1);
return GDK_DRAWABLE_TYPE (drawable);
}
void
gdk_drawable_get_size (GdkDrawable *drawable,
gint *width,
gint *height)
{
GdkDrawablePrivate *drawable_private;
g_return_if_fail (drawable != NULL);
drawable_private = (GdkDrawablePrivate*) drawable;
if (width)
*width = drawable_private->width;
if (height)
*height = drawable_private->height;
}
GdkVisual*
gdk_drawable_get_visual (GdkDrawable *drawable)
{
GdkColormap *colormap;
g_return_val_if_fail (drawable != NULL, NULL);
colormap = gdk_drawable_get_colormap (drawable);
return colormap ? gdk_colormap_get_visual (colormap) : NULL;
}
GdkDrawable*
gdk_drawable_ref (GdkDrawable *drawable)
{
GdkDrawablePrivate *private = (GdkDrawablePrivate *)drawable;
g_return_val_if_fail (drawable != NULL, NULL);
private->ref_count += 1;
return drawable;
}
void
gdk_drawable_unref (GdkDrawable *drawable)
{
GdkDrawablePrivate *private = (GdkDrawablePrivate *)drawable;
g_return_if_fail (drawable != NULL);
g_return_if_fail (private->ref_count > 0);
private->ref_count -= 1;
if (private->ref_count == 0)
{
private->klass->destroy (drawable);
g_dataset_destroy (drawable);
g_free (drawable);
}
}
/* Drawing
*/
void
gdk_draw_point (GdkDrawable *drawable,
GdkGC *gc,
gint x,
gint y)
{
GdkGCPrivate *gc_private;
GdkPoint point;
g_return_if_fail (drawable != NULL);
g_return_if_fail (gc != NULL);
if (GDK_DRAWABLE_DESTROYED (drawable))
return;
gc_private = (GdkGCPrivate*) gc;
point.x = x;
point.y = y;
((GdkDrawablePrivate *)drawable)->klass->draw_points (drawable, gc, &point, 1);
}
void
gdk_draw_line (GdkDrawable *drawable,
GdkGC *gc,
gint x1,
gint y1,
gint x2,
gint y2)
{
GdkGCPrivate *gc_private;
GdkSegment segment;
g_return_if_fail (drawable != NULL);
g_return_if_fail (gc != NULL);
if (GDK_DRAWABLE_DESTROYED (drawable))
return;
gc_private = (GdkGCPrivate*) gc;
segment.x1 = x1;
segment.y1 = y1;
segment.x2 = x2;
segment.y2 = y2;
((GdkDrawablePrivate *)drawable)->klass->draw_segments (drawable, gc, &segment, 1);
}
void
gdk_draw_rectangle (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
gint x,
gint y,
gint width,
gint height)
{
GdkDrawablePrivate *drawable_private;
g_return_if_fail (drawable != NULL);
g_return_if_fail (gc != NULL);
drawable_private = (GdkDrawablePrivate*) drawable;
if (GDK_DRAWABLE_DESTROYED (drawable))
return;
if (width < 0)
width = drawable_private->width;
if (height < 0)
height = drawable_private->height;
((GdkDrawablePrivate *)drawable)->klass->draw_rectangle (drawable, gc, filled, x, y,
width, height);
}
void
gdk_draw_arc (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
gint x,
gint y,
gint width,
gint height,
gint angle1,
gint angle2)
{
GdkDrawablePrivate *drawable_private;
GdkGCPrivate *gc_private;
g_return_if_fail (drawable != NULL);
g_return_if_fail (gc != NULL);
drawable_private = (GdkDrawablePrivate*) drawable;
if (GDK_DRAWABLE_DESTROYED (drawable))
return;
gc_private = (GdkGCPrivate*) gc;
if (width < 0)
width = drawable_private->width;
if (height < 0)
height = drawable_private->height;
((GdkDrawablePrivate *)drawable)->klass->draw_arc (drawable, gc, filled,
x, y, width, height, angle1, angle2);
}
void
gdk_draw_polygon (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
GdkPoint *points,
gint npoints)
{
g_return_if_fail (drawable != NULL);
g_return_if_fail (gc != NULL);
if (GDK_DRAWABLE_DESTROYED (drawable))
return;
((GdkDrawablePrivate *)drawable)->klass->draw_polygon (drawable, gc, filled,
points, npoints);
}
/* gdk_draw_string
*
* Modified by Li-Da Lho to draw 16 bits and Multibyte strings
*
* Interface changed: add "GdkFont *font" to specify font or fontset explicitely
*/
void
gdk_draw_string (GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const gchar *string)
{
gdk_draw_text (drawable, font, gc, x, y, string, _gdk_font_strlen (font, string));
}
/* gdk_draw_text
*
* Modified by Li-Da Lho to draw 16 bits and Multibyte strings
*
* Interface changed: add "GdkFont *font" to specify font or fontset explicitely
*/
void
gdk_draw_text (GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const gchar *text,
gint text_length)
{
g_return_if_fail (drawable != NULL);
g_return_if_fail (font != NULL);
g_return_if_fail (gc != NULL);
g_return_if_fail (text != NULL);
((GdkDrawablePrivate *)drawable)->klass->draw_text (drawable, font, gc, x, y, text, text_length);
}
void
gdk_draw_text_wc (GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const GdkWChar *text,
gint text_length)
{
g_return_if_fail (drawable != NULL);
g_return_if_fail (font != NULL);
g_return_if_fail (gc != NULL);
g_return_if_fail (text != NULL);
((GdkDrawablePrivate *)drawable)->klass->draw_text_wc (drawable, font, gc, x, y, text, text_length);
}
void
gdk_draw_drawable (GdkDrawable *drawable,
GdkGC *gc,
GdkDrawable *src,
gint xsrc,
gint ysrc,
gint xdest,
gint ydest,
gint width,
gint height)
{
g_return_if_fail (drawable != NULL);
g_return_if_fail (src != NULL);
g_return_if_fail (gc != NULL);
if (GDK_DRAWABLE_DESTROYED (drawable) || GDK_DRAWABLE_DESTROYED (src))
return;
if (width == -1)
width = ((GdkDrawablePrivate *)src)->width;
if (height == -1)
height = ((GdkDrawablePrivate *)src)->height;
((GdkDrawablePrivate *)drawable)->klass->draw_drawable (drawable, gc, src,
xsrc, ysrc, xdest, ydest,
width, height);
}
void
gdk_draw_image (GdkDrawable *drawable,
GdkGC *gc,
GdkImage *image,
gint xsrc,
gint ysrc,
gint xdest,
gint ydest,
gint width,
gint height)
{
GdkImagePrivate *image_private;
g_return_if_fail (drawable != NULL);
g_return_if_fail (image != NULL);
g_return_if_fail (gc != NULL);
image_private = (GdkImagePrivate*) image;
if (width == -1)
width = image->width;
if (height == -1)
height = image->height;
image_private->klass->image_put (image, drawable, gc, xsrc, ysrc,
xdest, ydest, width, height);
}
void
gdk_draw_points (GdkDrawable *drawable,
GdkGC *gc,
GdkPoint *points,
gint npoints)
{
g_return_if_fail (drawable != NULL);
g_return_if_fail ((points != NULL) && (npoints > 0));
g_return_if_fail (gc != NULL);
g_return_if_fail (npoints >= 0);
if (npoints == 0)
return;
if (GDK_DRAWABLE_DESTROYED (drawable))
return;
((GdkDrawablePrivate *)drawable)->klass->draw_points (drawable, gc, points, npoints);
}
void
gdk_draw_segments (GdkDrawable *drawable,
GdkGC *gc,
GdkSegment *segs,
gint nsegs)
{
g_return_if_fail (drawable != NULL);
g_return_if_fail (segs != NULL);
g_return_if_fail (gc != NULL);
g_return_if_fail (nsegs >= 0);
if (nsegs == 0)
return;
if (GDK_DRAWABLE_DESTROYED (drawable))
return;
((GdkDrawablePrivate *)drawable)->klass->draw_segments (drawable, gc, segs, nsegs);
}
void
gdk_draw_lines (GdkDrawable *drawable,
GdkGC *gc,
GdkPoint *points,
gint npoints)
{
g_return_if_fail (drawable != NULL);
g_return_if_fail (points != NULL);
g_return_if_fail (gc != NULL);
g_return_if_fail (npoints >= 0);
if (npoints == 0)
return;
if (GDK_DRAWABLE_DESTROYED (drawable))
return;
((GdkDrawablePrivate *)drawable)->klass->draw_lines (drawable, gc, points, npoints);
}