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gtk/gdk/x11/gdkgc-x11.c
Alexander Larsson eabac453e6 Initial client-side-windows work 
The history before this was kind of twisted as several different
approaches were tested, so that was all squashed into this initial
commit to hide the uninteresting changes and files that were later
removed.
2009-04-02 10:14:01 +02:00

710 lines
17 KiB
C
Raw Blame History

/* 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"
#include "gdkgc.h"
#include "gdkprivate-x11.h"
#include "gdkregion-generic.h"
#include "gdkx.h"
#include "gdkalias.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_finalize (GObject *object);
G_DEFINE_TYPE (GdkGCX11, _gdk_gc_x11, GDK_TYPE_GC)
static void
_gdk_gc_x11_class_init (GdkGCX11Class *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GdkGCClass *gc_class = GDK_GC_CLASS (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_init (GdkGCX11 *gc)
{
}
static void
gdk_gc_x11_finalize (GObject *object)
{
GdkGCX11 *x11_gc = GDK_GC_X11 (object);
XFreeGC (GDK_GC_XDISPLAY (x11_gc), GDK_GC_XGC (x11_gc));
G_OBJECT_CLASS (_gdk_gc_x11_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);
_gdk_gc_init (gc, drawable, values, values_mask);
private->dirty_mask = 0;
private->have_clip_mask = FALSE;
private->screen = GDK_DRAWABLE_IMPL_X11 (drawable)->screen;
private->depth = gdk_drawable_get_depth (drawable);
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_CLIP_MASK) && values->clip_mask)
private->have_clip_mask = TRUE;
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)
{
Display *xdisplay = GDK_GC_XDISPLAY (gc);
GdkGCX11 *private = GDK_GC_X11 (gc);
GC xgc = private->xgc;
if (private->dirty_mask & GDK_GC_DIRTY_CLIP)
{
GdkRegion *clip_region = _gdk_gc_get_clip_region (gc);
if (!clip_region)
XSetClipOrigin (xdisplay, xgc,
gc->clip_x_origin, gc->clip_y_origin);
else
{
XRectangle *rectangles;
gint n_rects;
_gdk_region_get_xrectangles (clip_region,
gc->clip_x_origin,
gc->clip_y_origin,
&rectangles,
&n_rects);
XSetClipRectangles (xdisplay, xgc, 0, 0,
rectangles,
n_rects, YXBanded);
g_free (rectangles);
}
}
if (private->dirty_mask & GDK_GC_DIRTY_TS)
{
XSetTSOrigin (xdisplay, xgc,
gc->ts_x_origin, gc->ts_y_origin);
}
private->dirty_mask = 0;
return xgc;
}
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_for_display (GDK_GC_DISPLAY (gc),
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_for_display (GDK_GC_DISPLAY (gc),
xvalues.tile);
values->stipple = gdk_pixmap_lookup_for_display (GDK_GC_DISPLAY (gc),
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;
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)
{
x11_gc->have_clip_region = FALSE;
x11_gc->have_clip_mask = values->clip_mask != NULL;
}
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, (char *)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_windowing_gc_set_clip_region (GdkGC *gc,
const GdkRegion *region,
gboolean reset_origin)
{
GdkGCX11 *x11_gc = GDK_GC_X11 (gc);
/* Unset immediately, to make sure Xlib doesn't keep the
* XID of an old clip mask cached
*/
if ((x11_gc->have_clip_region && !region) || x11_gc->have_clip_mask)
{
XSetClipMask (GDK_GC_XDISPLAY (gc), GDK_GC_XGC (gc), None);
x11_gc->have_clip_mask = FALSE;
}
x11_gc->have_clip_region = region != NULL;
if (reset_origin)
{
gc->clip_x_origin = 0;
gc->clip_y_origin = 0;
}
x11_gc->dirty_mask |= GDK_GC_DIRTY_CLIP;
}
void
_gdk_windowing_gc_copy (GdkGC *dst_gc,
GdkGC *src_gc)
{
GdkGCX11 *x11_src_gc = GDK_GC_X11 (src_gc);
GdkGCX11 *x11_dst_gc = GDK_GC_X11 (dst_gc);
XCopyGC (GDK_GC_XDISPLAY (src_gc), GDK_GC_XGC (src_gc), ~((~1) << GCLastBit),
GDK_GC_XGC (dst_gc));
x11_dst_gc->dirty_mask = x11_src_gc->dirty_mask;
x11_dst_gc->have_clip_region = x11_src_gc->have_clip_region;
x11_dst_gc->have_clip_mask = x11_src_gc->have_clip_mask;
}
/**
* gdk_gc_get_screen:
* @gc: a #GdkGC.
*
* Gets the #GdkScreen for which @gc was created
*
* Returns: the #GdkScreen for @gc.
*
* Since: 2.2
*/
GdkScreen *
gdk_gc_get_screen (GdkGC *gc)
{
g_return_val_if_fail (GDK_IS_GC_X11 (gc), NULL);
return GDK_GC_X11 (gc)->screen;
}
/**
* gdk_x11_gc_get_xdisplay:
* @gc: a #GdkGC.
*
* Returns the display of a #GdkGC.
*
* Return value: an Xlib <type>Display*</type>.
**/
Display *
gdk_x11_gc_get_xdisplay (GdkGC *gc)
{
g_return_val_if_fail (GDK_IS_GC_X11 (gc), NULL);
return GDK_SCREEN_XDISPLAY (gdk_gc_get_screen (gc));
}
/**
* gdk_x11_gc_get_xgc:
* @gc: a #GdkGC.
*
* Returns the X GC of a #GdkGC.
*
* Return value: an Xlib <type>GC</type>.
**/
GC
gdk_x11_gc_get_xgc (GdkGC *gc)
{
GdkGCX11 *gc_x11;
g_return_val_if_fail (GDK_IS_GC_X11 (gc), NULL);
gc_x11 = GDK_GC_X11 (gc);
if (gc_x11->dirty_mask)
_gdk_x11_gc_flush (gc);
return gc_x11->xgc;
}
#define __GDK_GC_X11_C__
#include "gdkaliasdef.c"
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