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gtk2/gdk/x11/gdkgc-x11.c
Owen Taylor 6e5a269f38 Add two virtualized functions gdk_drawable_get_clip_region - to get the 
Thu Dec 14 20:22:31 2000  Owen Taylor  <otaylor@redhat.com>

        * gdk/{gdkdrawable.[ch],gdkpixmap.c,gdkwindow.c,x11/gdkwindow.c}:
	Add two virtualized functions gdk_drawable_get_clip_region - to
	get the clip region when drawing.

	* gdk/gdkwindow.c (gdk_window_invalidate_rect): Rewrite to simple
	use invalidate_region.

	* gdk/gdkwindow.c (gdk_window_invalidate_region): Clip to visible
	region.

	* acconfig.h configure.in: Check for Xft. For now, assume
	that if Xft is found, Pango was compiled with Xft support
	as well.

	* gdk/gdkcolor.h gdk/x11/gdkcolor-x11.c: Add
	gdk_colormap_query_color().

	* gdk/x11/gdkdrawable-x11.c (gdk_x11_draw_glyphs): Draw
	with Xft if appropriate.

	* gdk/x11/gdkpango-x11.c (gdk_pango_context_get): Create
	a pangoxft context if we have XFT and the environment
	variable GD_USE_XFT is set.

	* gdk/x11/gdkx.h (struct _GdkGCX11): Cache the fg_pixel
	and also possibly an XftDraw structure.

        * gtk/gtkfontsel.c: Handle the case where the font from the
	style doesn't match any of the fonts a bit better.

	* gtk/testgtk.c: Add tabs between directional segments for
	hebrew/arabic test. (Not really necessary, just a little
	prettier.)
2000-12-15 01:46:41 +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 <config.h>
#if HAVE_XFT
#include <pango/pangoxft.h>
#endif
#include "gdkgc.h"
#include "gdkprivate-x11.h"
#include "gdkregion-generic.h"
#include <string.h>
typedef enum {
GDK_GC_DIRTY_CLIP = 1 << 0,
GDK_GC_DIRTY_TS = 1 << 1
} GdkGCDirtyValues;
static void gdk_x11_gc_values_to_xvalues (GdkGCValues *values,
GdkGCValuesMask mask,
XGCValues *xvalues,
unsigned long *xvalues_mask);
static void gdk_x11_gc_get_values (GdkGC *gc,
GdkGCValues *values);
static void gdk_x11_gc_set_values (GdkGC *gc,
GdkGCValues *values,
GdkGCValuesMask values_mask);
static void gdk_x11_gc_set_dashes (GdkGC *gc,
gint dash_offset,
gint8 dash_list[],
gint n);
static void gdk_gc_x11_class_init (GdkGCX11Class *klass);
static void gdk_gc_x11_finalize (GObject *object);
static gpointer parent_class = NULL;
GType
gdk_gc_x11_get_type (void)
{
static GType object_type = 0;
if (!object_type)
{
static const GTypeInfo object_info =
{
sizeof (GdkGCX11Class),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gdk_gc_x11_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GdkGCX11),
0, /* n_preallocs */
(GInstanceInitFunc) NULL,
};
object_type = g_type_register_static (GDK_TYPE_GC,
"GdkGCX11",
&object_info, 0);
}
return object_type;
}
static void
gdk_gc_x11_class_init (GdkGCX11Class *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GdkGCClass *gc_class = GDK_GC_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->finalize = gdk_gc_x11_finalize;
gc_class->get_values = gdk_x11_gc_get_values;
gc_class->set_values = gdk_x11_gc_set_values;
gc_class->set_dashes = gdk_x11_gc_set_dashes;
}
static void
gdk_gc_x11_finalize (GObject *object)
{
GdkGCX11 *x11_gc = GDK_GC_X11 (object);
if (x11_gc->clip_region)
gdk_region_destroy (x11_gc->clip_region);
XFreeGC (GDK_GC_XDISPLAY (x11_gc), GDK_GC_XGC (x11_gc));
#if HAVE_XFT
if (x11_gc->xft_draw)
XftDrawDestroy (x11_gc->xft_draw);
#endif
G_OBJECT_CLASS (parent_class)->finalize (object);
}
GdkGC *
_gdk_x11_gc_new (GdkDrawable *drawable,
GdkGCValues *values,
GdkGCValuesMask values_mask)
{
GdkGC *gc;
GdkGCX11 *private;
XGCValues xvalues;
unsigned long xvalues_mask;
/* NOTICE that the drawable here has to be the impl drawable,
* not the publically-visible drawables.
*/
g_return_val_if_fail (GDK_IS_DRAWABLE_IMPL_X11 (drawable), NULL);
gc = g_object_new (gdk_gc_x11_get_type (), NULL);
private = GDK_GC_X11 (gc);
private->dirty_mask = 0;
private->clip_region = NULL;
private->xdisplay = GDK_DRAWABLE_IMPL_X11 (drawable)->xdisplay;
if (values_mask & (GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN))
{
values_mask &= ~(GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN);
private->dirty_mask |= GDK_GC_DIRTY_CLIP;
}
if (values_mask & (GDK_GC_TS_X_ORIGIN | GDK_GC_TS_Y_ORIGIN))
{
values_mask &= ~(GDK_GC_TS_X_ORIGIN | GDK_GC_TS_Y_ORIGIN);
private->dirty_mask |= GDK_GC_DIRTY_TS;
}
if (values_mask & GDK_GC_FOREGROUND)
private->fg_pixel = values->foreground.pixel;
xvalues.function = GXcopy;
xvalues.fill_style = FillSolid;
xvalues.arc_mode = ArcPieSlice;
xvalues.subwindow_mode = ClipByChildren;
xvalues.graphics_exposures = False;
xvalues_mask = GCFunction | GCFillStyle | GCArcMode | GCSubwindowMode | GCGraphicsExposures;
gdk_x11_gc_values_to_xvalues (values, values_mask, &xvalues, &xvalues_mask);
private->xgc = XCreateGC (GDK_GC_XDISPLAY (gc),
GDK_DRAWABLE_IMPL_X11 (drawable)->xid,
xvalues_mask, &xvalues);
return gc;
}
GC
_gdk_x11_gc_flush (GdkGC *gc)
{
GdkGCX11 *private = GDK_GC_X11 (gc);
if (private->dirty_mask & GDK_GC_DIRTY_CLIP)
{
if (!private->clip_region)
XSetClipOrigin (GDK_GC_XDISPLAY (gc), GDK_GC_XGC (gc),
gc->clip_x_origin, gc->clip_y_origin);
else
{
XRectangle *rectangles = g_new (XRectangle, private->clip_region->numRects);
GdkRegionBox *boxes = private->clip_region->rects;
int i;
for (i=0; i<private->clip_region->numRects; i++)
{
rectangles[i].x = CLAMP (boxes[i].x1 + gc->clip_x_origin, G_MINSHORT, G_MAXSHORT);
rectangles[i].y = CLAMP (boxes[i].y1 + gc->clip_y_origin, G_MINSHORT, G_MAXSHORT);
rectangles[i].width = CLAMP (boxes[i].x2 + gc->clip_x_origin, G_MINSHORT, G_MAXSHORT) - rectangles[i].x;
rectangles[i].height = CLAMP (boxes[i].y2 + gc->clip_y_origin, G_MINSHORT, G_MAXSHORT) - rectangles[i].y;
}
XSetClipRectangles(GDK_GC_XDISPLAY (gc), GDK_GC_XGC (gc), 0, 0, rectangles,
private->clip_region->numRects, YXBanded);
g_free (rectangles);
}
}
if (private->dirty_mask & GDK_GC_DIRTY_TS)
{
XSetTSOrigin (GDK_GC_XDISPLAY (gc), GDK_GC_XGC (gc),
gc->ts_x_origin, gc->ts_y_origin);
}
private->dirty_mask = 0;
return GDK_GC_XGC (gc);
}
static void
gdk_x11_gc_get_values (GdkGC *gc,
GdkGCValues *values)
{
XGCValues xvalues;
if (XGetGCValues (GDK_GC_XDISPLAY (gc), GDK_GC_XGC (gc),
GCForeground | GCBackground | GCFont |
GCFunction | GCTile | GCStipple | /* GCClipMask | */
GCSubwindowMode | GCGraphicsExposures |
GCTileStipXOrigin | GCTileStipYOrigin |
GCClipXOrigin | GCClipYOrigin |
GCLineWidth | GCLineStyle | GCCapStyle |
GCFillStyle | GCJoinStyle, &xvalues))
{
values->foreground.pixel = xvalues.foreground;
values->background.pixel = xvalues.background;
values->font = gdk_font_lookup (xvalues.font);
switch (xvalues.function)
{
case GXcopy:
values->function = GDK_COPY;
break;
case GXinvert:
values->function = GDK_INVERT;
break;
case GXxor:
values->function = GDK_XOR;
break;
case GXclear:
values->function = GDK_CLEAR;
break;
case GXand:
values->function = GDK_AND;
break;
case GXandReverse:
values->function = GDK_AND_REVERSE;
break;
case GXandInverted:
values->function = GDK_AND_INVERT;
break;
case GXnoop:
values->function = GDK_NOOP;
break;
case GXor:
values->function = GDK_OR;
break;
case GXequiv:
values->function = GDK_EQUIV;
break;
case GXorReverse:
values->function = GDK_OR_REVERSE;
break;
case GXcopyInverted:
values->function =GDK_COPY_INVERT;
break;
case GXorInverted:
values->function = GDK_OR_INVERT;
break;
case GXnand:
values->function = GDK_NAND;
break;
case GXset:
values->function = GDK_SET;
break;
case GXnor:
values->function = GDK_NOR;
break;
}
switch (xvalues.fill_style)
{
case FillSolid:
values->fill = GDK_SOLID;
break;
case FillTiled:
values->fill = GDK_TILED;
break;
case FillStippled:
values->fill = GDK_STIPPLED;
break;
case FillOpaqueStippled:
values->fill = GDK_OPAQUE_STIPPLED;
break;
}
values->tile = gdk_pixmap_lookup (xvalues.tile);
values->stipple = gdk_pixmap_lookup (xvalues.stipple);
values->clip_mask = NULL;
values->subwindow_mode = xvalues.subwindow_mode;
values->ts_x_origin = xvalues.ts_x_origin;
values->ts_y_origin = xvalues.ts_y_origin;
values->clip_x_origin = xvalues.clip_x_origin;
values->clip_y_origin = xvalues.clip_y_origin;
values->graphics_exposures = xvalues.graphics_exposures;
values->line_width = xvalues.line_width;
switch (xvalues.line_style)
{
case LineSolid:
values->line_style = GDK_LINE_SOLID;
break;
case LineOnOffDash:
values->line_style = GDK_LINE_ON_OFF_DASH;
break;
case LineDoubleDash:
values->line_style = GDK_LINE_DOUBLE_DASH;
break;
}
switch (xvalues.cap_style)
{
case CapNotLast:
values->cap_style = GDK_CAP_NOT_LAST;
break;
case CapButt:
values->cap_style = GDK_CAP_BUTT;
break;
case CapRound:
values->cap_style = GDK_CAP_ROUND;
break;
case CapProjecting:
values->cap_style = GDK_CAP_PROJECTING;
break;
}
switch (xvalues.join_style)
{
case JoinMiter:
values->join_style = GDK_JOIN_MITER;
break;
case JoinRound:
values->join_style = GDK_JOIN_ROUND;
break;
case JoinBevel:
values->join_style = GDK_JOIN_BEVEL;
break;
}
}
else
{
memset (values, 0, sizeof (GdkGCValues));
}
}
static void
gdk_x11_gc_set_values (GdkGC *gc,
GdkGCValues *values,
GdkGCValuesMask values_mask)
{
GdkGCX11 *x11_gc;
XGCValues xvalues;
unsigned long xvalues_mask = 0;
g_return_if_fail (GDK_IS_GC (gc));
x11_gc = GDK_GC_X11 (gc);
if (values_mask & (GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN))
{
values_mask &= ~(GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN);
x11_gc->dirty_mask |= GDK_GC_DIRTY_CLIP;
}
if (values_mask & (GDK_GC_TS_X_ORIGIN | GDK_GC_TS_Y_ORIGIN))
{
values_mask &= ~(GDK_GC_TS_X_ORIGIN | GDK_GC_TS_Y_ORIGIN);
x11_gc->dirty_mask |= GDK_GC_DIRTY_TS;
}
if (values_mask & GDK_GC_CLIP_MASK)
{
if (x11_gc->clip_region)
{
gdk_region_destroy (x11_gc->clip_region);
x11_gc->clip_region = NULL;
}
}
if (values_mask & GDK_GC_FOREGROUND)
x11_gc->fg_pixel = values->foreground.pixel;
gdk_x11_gc_values_to_xvalues (values, values_mask, &xvalues, &xvalues_mask);
XChangeGC (GDK_GC_XDISPLAY (gc),
GDK_GC_XGC (gc),
xvalues_mask,
&xvalues);
}
static void
gdk_x11_gc_set_dashes (GdkGC *gc,
gint dash_offset,
gint8 dash_list[],
gint n)
{
g_return_if_fail (GDK_IS_GC (gc));
g_return_if_fail (dash_list != NULL);
XSetDashes (GDK_GC_XDISPLAY (gc), GDK_GC_XGC (gc),
dash_offset, dash_list, n);
}
static void
gdk_x11_gc_values_to_xvalues (GdkGCValues *values,
GdkGCValuesMask mask,
XGCValues *xvalues,
unsigned long *xvalues_mask)
{
/* Optimization for the common case (gdk_gc_new()) */
if (values == NULL || mask == 0)
return;
if (mask & GDK_GC_FOREGROUND)
{
xvalues->foreground = values->foreground.pixel;
*xvalues_mask |= GCForeground;
}
if (mask & GDK_GC_BACKGROUND)
{
xvalues->background = values->background.pixel;
*xvalues_mask |= GCBackground;
}
if ((mask & GDK_GC_FONT) && (values->font->type == GDK_FONT_FONT))
{
xvalues->font = ((XFontStruct *) (GDK_FONT_XFONT (values->font)))->fid;
*xvalues_mask |= GCFont;
}
if (mask & GDK_GC_FUNCTION)
{
switch (values->function)
{
case GDK_COPY:
xvalues->function = GXcopy;
break;
case GDK_INVERT:
xvalues->function = GXinvert;
break;
case GDK_XOR:
xvalues->function = GXxor;
break;
case GDK_CLEAR:
xvalues->function = GXclear;
break;
case GDK_AND:
xvalues->function = GXand;
break;
case GDK_AND_REVERSE:
xvalues->function = GXandReverse;
break;
case GDK_AND_INVERT:
xvalues->function = GXandInverted;
break;
case GDK_NOOP:
xvalues->function = GXnoop;
break;
case GDK_OR:
xvalues->function = GXor;
break;
case GDK_EQUIV:
xvalues->function = GXequiv;
break;
case GDK_OR_REVERSE:
xvalues->function = GXorReverse;
break;
case GDK_COPY_INVERT:
xvalues->function = GXcopyInverted;
break;
case GDK_OR_INVERT:
xvalues->function = GXorInverted;
break;
case GDK_NAND:
xvalues->function = GXnand;
break;
case GDK_SET:
xvalues->function = GXset;
break;
case GDK_NOR:
xvalues->function = GXnor;
break;
}
*xvalues_mask |= GCFunction;
}
if (mask & GDK_GC_FILL)
{
switch (values->fill)
{
case GDK_SOLID:
xvalues->fill_style = FillSolid;
break;
case GDK_TILED:
xvalues->fill_style = FillTiled;
break;
case GDK_STIPPLED:
xvalues->fill_style = FillStippled;
break;
case GDK_OPAQUE_STIPPLED:
xvalues->fill_style = FillOpaqueStippled;
break;
}
*xvalues_mask |= GCFillStyle;
}
if (mask & GDK_GC_TILE)
{
if (values->tile)
xvalues->tile = GDK_DRAWABLE_XID (values->tile);
else
xvalues->tile = None;
*xvalues_mask |= GCTile;
}
if (mask & GDK_GC_STIPPLE)
{
if (values->stipple)
xvalues->stipple = GDK_DRAWABLE_XID (values->stipple);
else
xvalues->stipple = None;
*xvalues_mask |= GCStipple;
}
if (mask & GDK_GC_CLIP_MASK)
{
if (values->clip_mask)
xvalues->clip_mask = GDK_DRAWABLE_XID (values->clip_mask);
else
xvalues->clip_mask = None;
*xvalues_mask |= GCClipMask;
}
if (mask & GDK_GC_SUBWINDOW)
{
xvalues->subwindow_mode = values->subwindow_mode;
*xvalues_mask |= GCSubwindowMode;
}
if (mask & GDK_GC_TS_X_ORIGIN)
{
xvalues->ts_x_origin = values->ts_x_origin;
*xvalues_mask |= GCTileStipXOrigin;
}
if (mask & GDK_GC_TS_Y_ORIGIN)
{
xvalues->ts_y_origin = values->ts_y_origin;
*xvalues_mask |= GCTileStipYOrigin;
}
if (mask & GDK_GC_CLIP_X_ORIGIN)
{
xvalues->clip_x_origin = values->clip_x_origin;
*xvalues_mask |= GCClipXOrigin;
}
if (mask & GDK_GC_CLIP_Y_ORIGIN)
{
xvalues->clip_y_origin = values->clip_y_origin;
*xvalues_mask |= GCClipYOrigin;
}
if (mask & GDK_GC_EXPOSURES)
{
xvalues->graphics_exposures = values->graphics_exposures;
*xvalues_mask |= GCGraphicsExposures;
}
if (mask & GDK_GC_LINE_WIDTH)
{
xvalues->line_width = values->line_width;
*xvalues_mask |= GCLineWidth;
}
if (mask & GDK_GC_LINE_STYLE)
{
switch (values->line_style)
{
case GDK_LINE_SOLID:
xvalues->line_style = LineSolid;
break;
case GDK_LINE_ON_OFF_DASH:
xvalues->line_style = LineOnOffDash;
break;
case GDK_LINE_DOUBLE_DASH:
xvalues->line_style = LineDoubleDash;
break;
}
*xvalues_mask |= GCLineStyle;
}
if (mask & GDK_GC_CAP_STYLE)
{
switch (values->cap_style)
{
case GDK_CAP_NOT_LAST:
xvalues->cap_style = CapNotLast;
break;
case GDK_CAP_BUTT:
xvalues->cap_style = CapButt;
break;
case GDK_CAP_ROUND:
xvalues->cap_style = CapRound;
break;
case GDK_CAP_PROJECTING:
xvalues->cap_style = CapProjecting;
break;
}
*xvalues_mask |= GCCapStyle;
}
if (mask & GDK_GC_JOIN_STYLE)
{
switch (values->join_style)
{
case GDK_JOIN_MITER:
xvalues->join_style = JoinMiter;
break;
case GDK_JOIN_ROUND:
xvalues->join_style = JoinRound;
break;
case GDK_JOIN_BEVEL:
xvalues->join_style = JoinBevel;
break;
}
*xvalues_mask |= GCJoinStyle;
}
}
void
gdk_gc_set_clip_rectangle (GdkGC *gc,
GdkRectangle *rectangle)
{
GdkGCX11 *x11_gc;
g_return_if_fail (GDK_IS_GC (gc));
x11_gc = GDK_GC_X11 (gc);
if (x11_gc->clip_region)
gdk_region_destroy (x11_gc->clip_region);
if (rectangle)
x11_gc->clip_region = gdk_region_rectangle (rectangle);
else
{
x11_gc->clip_region = NULL;
XSetClipMask (GDK_GC_XDISPLAY (gc), GDK_GC_XGC (gc), None);
}
gc->clip_x_origin = 0;
gc->clip_y_origin = 0;
x11_gc->dirty_mask |= GDK_GC_DIRTY_CLIP;
}
void
gdk_gc_set_clip_region (GdkGC *gc,
GdkRegion *region)
{
GdkGCX11 *x11_gc;
g_return_if_fail (GDK_IS_GC (gc));
x11_gc = GDK_GC_X11 (gc);
if (x11_gc->clip_region)
gdk_region_destroy (x11_gc->clip_region);
if (region)
x11_gc->clip_region = gdk_region_copy (region);
else
{
x11_gc->clip_region = NULL;
XSetClipMask (GDK_GC_XDISPLAY (gc), GDK_GC_XGC (gc), None);
}
gc->clip_x_origin = 0;
gc->clip_y_origin = 0;
x11_gc->dirty_mask |= GDK_GC_DIRTY_CLIP;
}
void
gdk_gc_copy (GdkGC *dst_gc, GdkGC *src_gc)
{
GdkGCX11 *x11_src_gc;
GdkGCX11 *x11_dst_gc;
g_return_if_fail (GDK_IS_GC_X11 (dst_gc));
g_return_if_fail (GDK_IS_GC_X11 (src_gc));
x11_dst_gc = GDK_GC_X11 (dst_gc);
x11_src_gc = GDK_GC_X11 (src_gc);
XCopyGC (GDK_GC_XDISPLAY (src_gc), GDK_GC_XGC (src_gc), ~((~1) << GCLastBit),
GDK_GC_XGC (dst_gc));
dst_gc->clip_x_origin = src_gc->clip_x_origin;
dst_gc->clip_y_origin = src_gc->clip_y_origin;
dst_gc->ts_x_origin = src_gc->ts_x_origin;
dst_gc->ts_y_origin = src_gc->ts_y_origin;
if (src_gc->colormap)
g_object_ref (G_OBJECT (src_gc->colormap));
if (dst_gc->colormap)
g_object_unref (G_OBJECT (dst_gc->colormap));
dst_gc->colormap = src_gc->colormap;
if (x11_dst_gc->clip_region)
gdk_region_destroy (x11_dst_gc->clip_region);
if (x11_src_gc->clip_region)
x11_dst_gc->clip_region = gdk_region_copy (x11_src_gc->clip_region);
else
x11_dst_gc->clip_region = NULL;
x11_dst_gc->dirty_mask = x11_src_gc->dirty_mask;
x11_dst_gc->fg_pixel = x11_src_gc->fg_pixel;
}
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