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gtk/gdk/gdkdraw.c
Havoc Pennington 35876710dc don't create dangling pointers to the appearance attributes from the line 
2000-11-30  Havoc Pennington  <hp@pobox.com>

* gtk/gtktextdisplay.c (gtk_text_layout_draw): don't create
dangling pointers to the appearance attributes from the
line display

* gdk/gdkdraw.c (gdk_drawable_get_image): allow negative
width/height to mean "full width/height of drawable"

* gtk/gtktextview.h, gtk/gtktextview.c: Implement double/triple
click to select word/line

* gtk/gtktextiter.c (test_log_attrs): include paragraph delimiters
when getting log attrs. Get a slice, so that pixmaps and stuff
are properly handled.

* gtk/gtktextbuffer.c (paste): Fix pasting to work properly if you
paste into the selection (replaces selection now, previously
crashed or added to selection). Reveals longstanding btree bug -
select multiple lines, middle-click on the selection, boom. This
isn't related to my changes though.

* gtk/gtkentry.c (gtk_entry_move_forward_word): Update to reflect
PangoLogAttrs changes
(gtk_entry_move_backward_word): ditto

        * gtk/gtktextlayout.h, gtk/gtktextlayout.c: Make the iter motion
	functions return bool whether the iter moved onto a
	dereferenceable position.

	 * gtk/gtktextview.h, gtk/gtktextview.c: Add a bunch of public
	 functions for motion in terms of display lines.

	 * gtk/gtktextmark.c (gtk_text_mark_get_buffer): Add function to
	 get the buffer a mark is inside
2000-12-02 07:51:37 +00:00

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/* 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 Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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 1997-2000. 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 "gdkinternals.h"
#include "gdkwindow.h"
static GdkDrawable* gdk_drawable_real_get_composite_drawable (GdkDrawable *drawable,
gint x,
gint y,
gint width,
gint height,
gint *composite_x_offset,
gint *composite_y_offset);
static void gdk_drawable_class_init (GdkDrawableClass *klass);
GType
gdk_drawable_get_type (void)
{
static GType object_type = 0;
if (!object_type)
{
static const GTypeInfo object_info =
{
sizeof (GdkDrawableClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gdk_drawable_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GdkDrawable),
0, /* n_preallocs */
(GInstanceInitFunc) NULL,
};
object_type = g_type_register_static (G_TYPE_OBJECT,
"GdkDrawable",
&object_info, 0);
}
return object_type;
}
static void
gdk_drawable_class_init (GdkDrawableClass *klass)
{
klass->get_composite_drawable = gdk_drawable_real_get_composite_drawable;
}
/* Manipulation of drawables
*/
void
gdk_drawable_set_data (GdkDrawable *drawable,
const gchar *key,
gpointer data,
GDestroyNotify destroy_func)
{
g_return_if_fail (GDK_IS_DRAWABLE (drawable));
g_object_set_qdata_full (G_OBJECT (drawable),
g_quark_from_string (key),
data,
destroy_func);
}
gpointer
gdk_drawable_get_data (GdkDrawable *drawable,
const gchar *key)
{
g_return_val_if_fail (GDK_IS_DRAWABLE (drawable), NULL);
return g_object_get_qdata (G_OBJECT (drawable),
g_quark_try_string (key));
}
void
gdk_drawable_get_size (GdkDrawable *drawable,
gint *width,
gint *height)
{
g_return_if_fail (GDK_IS_DRAWABLE (drawable));
GDK_DRAWABLE_GET_CLASS (drawable)->get_size (drawable, width, height);
}
GdkVisual*
gdk_drawable_get_visual (GdkDrawable *drawable)
{
g_return_val_if_fail (GDK_IS_DRAWABLE (drawable), NULL);
return GDK_DRAWABLE_GET_CLASS (drawable)->get_visual (drawable);
}
gint
gdk_drawable_get_depth (GdkDrawable *drawable)
{
g_return_val_if_fail (GDK_IS_DRAWABLE (drawable), 0);
return GDK_DRAWABLE_GET_CLASS (drawable)->get_depth (drawable);
}
void
gdk_drawable_set_colormap (GdkDrawable *drawable,
GdkColormap *cmap)
{
g_return_if_fail (GDK_IS_DRAWABLE (drawable));
GDK_DRAWABLE_GET_CLASS (drawable)->set_colormap (drawable, cmap);
}
GdkColormap*
gdk_drawable_get_colormap (GdkDrawable *drawable)
{
g_return_val_if_fail (GDK_IS_DRAWABLE (drawable), NULL);
return GDK_DRAWABLE_GET_CLASS (drawable)->get_colormap (drawable);
}
GdkDrawable*
gdk_drawable_ref (GdkDrawable *drawable)
{
return (GdkDrawable *) g_object_ref (G_OBJECT (drawable));
}
void
gdk_drawable_unref (GdkDrawable *drawable)
{
g_return_if_fail (GDK_IS_DRAWABLE (drawable));
g_object_unref (G_OBJECT (drawable));
}
/* Drawing
*/
void
gdk_draw_point (GdkDrawable *drawable,
GdkGC *gc,
gint x,
gint y)
{
GdkPoint point;
g_return_if_fail (GDK_IS_DRAWABLE (drawable));
g_return_if_fail (GDK_IS_GC (gc));
point.x = x;
point.y = y;
GDK_DRAWABLE_GET_CLASS (drawable)->draw_points (drawable, gc, &point, 1);
}
void
gdk_draw_line (GdkDrawable *drawable,
GdkGC *gc,
gint x1,
gint y1,
gint x2,
gint y2)
{
GdkSegment segment;
g_return_if_fail (drawable != NULL);
g_return_if_fail (gc != NULL);
g_return_if_fail (GDK_IS_DRAWABLE (drawable));
g_return_if_fail (GDK_IS_GC (gc));
segment.x1 = x1;
segment.y1 = y1;
segment.x2 = x2;
segment.y2 = y2;
GDK_DRAWABLE_GET_CLASS (drawable)->draw_segments (drawable, gc, &segment, 1);
}
void
gdk_draw_rectangle (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
gint x,
gint y,
gint width,
gint height)
{
g_return_if_fail (GDK_IS_DRAWABLE (drawable));
g_return_if_fail (GDK_IS_GC (gc));
if (width < 0 || height < 0)
{
gint real_width;
gint real_height;
gdk_drawable_get_size (drawable, &real_width, &real_height);
if (width < 0)
width = real_width;
if (height < 0)
height = real_height;
}
GDK_DRAWABLE_GET_CLASS (drawable)->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)
{
g_return_if_fail (GDK_IS_DRAWABLE (drawable));
g_return_if_fail (GDK_IS_GC (gc));
if (width < 0 || height < 0)
{
gint real_width;
gint real_height;
gdk_drawable_get_size (drawable, &real_width, &real_height);
if (width < 0)
width = real_width;
if (height < 0)
height = real_height;
}
GDK_DRAWABLE_GET_CLASS (drawable)->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 (GDK_IS_DRAWABLE (drawable));
g_return_if_fail (GDK_IS_GC (gc));
GDK_DRAWABLE_GET_CLASS (drawable)->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 (GDK_IS_DRAWABLE (drawable));
g_return_if_fail (font != NULL);
g_return_if_fail (GDK_IS_GC (gc));
g_return_if_fail (text != NULL);
GDK_DRAWABLE_GET_CLASS (drawable)->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 (GDK_IS_DRAWABLE (drawable));
g_return_if_fail (font != NULL);
g_return_if_fail (GDK_IS_GC (gc));
g_return_if_fail (text != NULL);
GDK_DRAWABLE_GET_CLASS (drawable)->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)
{
GdkDrawable *composite;
gint composite_x_offset = 0;
gint composite_y_offset = 0;
g_return_if_fail (GDK_IS_DRAWABLE (drawable));
g_return_if_fail (src != NULL);
g_return_if_fail (GDK_IS_GC (gc));
if (width < 0 || height < 0)
{
gint real_width;
gint real_height;
gdk_drawable_get_size (src, &real_width, &real_height);
if (width < 0)
width = real_width;
if (height < 0)
height = real_height;
}
composite =
GDK_DRAWABLE_GET_CLASS (src)->get_composite_drawable (src,
xsrc, ysrc,
width, height,
&composite_x_offset,
&composite_y_offset);
GDK_DRAWABLE_GET_CLASS (drawable)->draw_drawable (drawable, gc, composite,
xsrc - composite_x_offset,
ysrc - composite_y_offset,
xdest, ydest,
width, height);
g_object_unref (G_OBJECT (composite));
}
void
gdk_draw_image (GdkDrawable *drawable,
GdkGC *gc,
GdkImage *image,
gint xsrc,
gint ysrc,
gint xdest,
gint ydest,
gint width,
gint height)
{
g_return_if_fail (GDK_IS_DRAWABLE (drawable));
g_return_if_fail (image != NULL);
g_return_if_fail (GDK_IS_GC (gc));
if (width == -1)
width = image->width;
if (height == -1)
height = image->height;
GDK_DRAWABLE_GET_CLASS (drawable)->draw_image (drawable, gc, image, xsrc, ysrc,
xdest, ydest, width, height);
}
void
gdk_draw_points (GdkDrawable *drawable,
GdkGC *gc,
GdkPoint *points,
gint npoints)
{
g_return_if_fail (GDK_IS_DRAWABLE (drawable));
g_return_if_fail ((points != NULL) && (npoints > 0));
g_return_if_fail (GDK_IS_GC (gc));
g_return_if_fail (npoints >= 0);
if (npoints == 0)
return;
GDK_DRAWABLE_GET_CLASS (drawable)->draw_points (drawable, gc, points, npoints);
}
void
gdk_draw_segments (GdkDrawable *drawable,
GdkGC *gc,
GdkSegment *segs,
gint nsegs)
{
g_return_if_fail (GDK_IS_DRAWABLE (drawable));
if (nsegs == 0)
return;
g_return_if_fail (segs != NULL);
g_return_if_fail (GDK_IS_GC (gc));
g_return_if_fail (nsegs >= 0);
GDK_DRAWABLE_GET_CLASS (drawable)->draw_segments (drawable, gc, segs, nsegs);
}
void
gdk_draw_lines (GdkDrawable *drawable,
GdkGC *gc,
GdkPoint *points,
gint npoints)
{
g_return_if_fail (GDK_IS_DRAWABLE (drawable));
g_return_if_fail (points != NULL);
g_return_if_fail (GDK_IS_GC (gc));
g_return_if_fail (npoints >= 0);
if (npoints == 0)
return;
GDK_DRAWABLE_GET_CLASS (drawable)->draw_lines (drawable, gc, points, npoints);
}
void
gdk_draw_glyphs (GdkDrawable *drawable,
GdkGC *gc,
PangoFont *font,
gint x,
gint y,
PangoGlyphString *glyphs)
{
g_return_if_fail (GDK_IS_DRAWABLE (drawable));
g_return_if_fail (GDK_IS_GC (gc));
GDK_DRAWABLE_GET_CLASS (drawable)->draw_glyphs (drawable, gc, font, x, y, glyphs);
}
GdkImage*
gdk_drawable_get_image (GdkDrawable *drawable,
gint x,
gint y,
gint width,
gint height)
{
GdkDrawable *composite;
gint composite_x_offset = 0;
gint composite_y_offset = 0;
GdkImage *retval;
g_return_val_if_fail (GDK_IS_DRAWABLE (drawable), NULL);
g_return_val_if_fail (x >= 0, NULL);
g_return_val_if_fail (y >= 0, NULL);
if (width < 0 || height < 0)
gdk_drawable_get_size (drawable,
width < 0 ? &width : NULL,
height < 0 ? &height : NULL);
composite =
GDK_DRAWABLE_GET_CLASS (drawable)->get_composite_drawable (drawable,
x, y,
width, height,
&composite_x_offset,
&composite_y_offset);
retval = GDK_DRAWABLE_GET_CLASS (composite)->get_image (composite,
x - composite_x_offset,
y - composite_y_offset,
width, height);
g_object_unref (G_OBJECT (composite));
return retval;
}
static GdkDrawable*
gdk_drawable_real_get_composite_drawable (GdkDrawable *drawable,
gint x,
gint y,
gint width,
gint height,
gint *composite_x_offset,
gint *composite_y_offset)
{
g_return_val_if_fail (GDK_IS_DRAWABLE (drawable), NULL);
*composite_x_offset = 0;
*composite_y_offset = 0;
return GDK_DRAWABLE (g_object_ref (G_OBJECT (drawable)));
}
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