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gtk/gdk/win32/gdkgc.c

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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 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 "config.h"
#include <string.h>
#include "gdk.h"
#include "gdkprivate.h"
GdkGC*
gdk_gc_new (GdkWindow *window)
{
return gdk_gc_new_with_values (window, NULL, 0);
}
GdkGC*
gdk_gc_new_with_values (GdkWindow *window,
GdkGCValues *values,
GdkGCValuesMask values_mask)
{
GdkWindowPrivate *window_private;
GdkGC *gc;
GdkGCPrivate *private;
static GdkColor black;
static GdkColor white;
static gboolean beenhere = FALSE;
if (!beenhere)
{
gdk_color_black (gdk_colormap_get_system (), &black);
gdk_color_white (gdk_colormap_get_system (), &white);
beenhere = TRUE;
}
g_return_val_if_fail (window != NULL, NULL);
window_private = (GdkWindowPrivate*) window;
if (window_private->destroyed)
return NULL;
private = g_new (GdkGCPrivate, 1);
gc = (GdkGC*) private;
private->ref_count = 1;
private->rop2 = R2_COPYPEN;
private->fill_style = GDK_SOLID;
private->values_mask = values_mask;
private->values_mask |= GDK_GC_FUNCTION | GDK_GC_FILL;
GDK_NOTE (MISC, g_print ("gdk_gc_new: {"));
if (values_mask & GDK_GC_FOREGROUND)
{
private->foreground = values->foreground;
}
else
private->foreground = black;
if (values_mask & GDK_GC_BACKGROUND)
{
private->background = values->background;
}
else
private->background = white;
if ((values_mask & GDK_GC_FONT) && (values->font->type == GDK_FONT_FONT))
{
private->font = (HFONT) ((GdkFontPrivate*) values->font)->xfont;
GDK_NOTE (MISC, g_print (" font=%#x", private->font));
}
if (values_mask & GDK_GC_FUNCTION)
{
switch (values->function)
{
case GDK_COPY:
private->rop2 = R2_COPYPEN; break;
case GDK_INVERT:
private->rop2 = R2_NOT; break;
case GDK_XOR:
private->rop2 = R2_XORPEN; break;
case GDK_CLEAR:
private->rop2 = R2_BLACK; break;
case GDK_AND:
private->rop2 = R2_MASKPEN; break;
case GDK_AND_REVERSE:
private->rop2 = R2_MASKPENNOT; break;
case GDK_AND_INVERT:
private->rop2 = R2_MASKNOTPEN; break;
case GDK_NOOP:
private->rop2 = R2_NOP; break;
case GDK_OR:
private->rop2 = R2_MERGEPEN; break;
case GDK_EQUIV:
private->rop2 = R2_NOTXORPEN; break;
case GDK_OR_REVERSE:
private->rop2 = R2_MERGEPENNOT; break;
case GDK_COPY_INVERT:
private->rop2 = R2_NOTCOPYPEN; break;
case GDK_OR_INVERT:
private->rop2 = R2_MERGENOTPEN; break;
case GDK_NAND:
private->rop2 = R2_NOTMASKPEN; break;
case GDK_SET:
private->rop2 = R2_WHITE; break;
}
GDK_NOTE (MISC, g_print (" function=%d", private->rop2));
}
if (values_mask & GDK_GC_FILL)
{
private->fill_style = values->fill;
GDK_NOTE (MISC, g_print (" fill=%d", private->fill_style));
}
if (values_mask & GDK_GC_TILE)
{
private->tile = values->tile;
gdk_pixmap_ref (private->tile);
GDK_NOTE (MISC, g_print (" tile=%#x", ((GdkPixmapPrivate *)private->tile)->xwindow));
}
else
private->tile = NULL;
if (values_mask & GDK_GC_STIPPLE)
{
private->stipple = values->tile;
gdk_pixmap_ref (private->stipple);
GDK_NOTE (MISC, g_print (" stipple=%#x", ((GdkPixmapPrivate *)private->stipple)->xwindow));
}
else
private->stipple = NULL;
if (values_mask & GDK_GC_CLIP_MASK)
{
private->clip_region =
BitmapToRegion (((GdkPixmapPrivate *)values->clip_mask)->xwindow);
GDK_NOTE (MISC, g_print (" clip=%#x", private->clip_region));
}
else
private->clip_region = NULL;
if (values_mask & GDK_GC_SUBWINDOW)
{
private->subwindow_mode = values->subwindow_mode;
GDK_NOTE (MISC, g_print (" subw=%d", private->subwindow_mode));
}
if (values_mask & GDK_GC_TS_X_ORIGIN)
{
private->ts_x_origin = values->ts_x_origin;
GDK_NOTE (MISC, g_print (" ts_x=%d", private->ts_x_origin));
}
if (values_mask & GDK_GC_TS_Y_ORIGIN)
{
private->ts_y_origin = values->ts_y_origin;
GDK_NOTE (MISC, g_print (" ts_y=%d", private->ts_y_origin));
}
if (values_mask & GDK_GC_CLIP_X_ORIGIN)
{
private->clip_x_origin = values->clip_x_origin;
GDK_NOTE (MISC, g_print (" clip_x=%d", private->clip_x_origin));
}
if (values_mask & GDK_GC_CLIP_Y_ORIGIN)
{
private->clip_y_origin = values->clip_y_origin;
GDK_NOTE (MISC, g_print (" clip_y=%d", private->clip_y_origin));
}
if (values_mask & GDK_GC_EXPOSURES)
{
private->graphics_exposures = values->graphics_exposures;
GDK_NOTE (MISC, g_print (" exp=%d", private->graphics_exposures));
}
private->pen_style = PS_GEOMETRIC;
private->pen_width = 1;
if (values_mask & (GDK_GC_LINE_WIDTH | GDK_GC_LINE_STYLE))
{
if (values_mask & GDK_GC_LINE_WIDTH)
{
private->pen_width = values->line_width;
GDK_NOTE (MISC, g_print (" pw=%d", private->pen_width));
}
if (values_mask & GDK_GC_LINE_STYLE)
{
switch (values->line_style)
{
case GDK_LINE_SOLID:
private->pen_style |= PS_SOLID; break;
case GDK_LINE_ON_OFF_DASH:
case GDK_LINE_DOUBLE_DASH: /* ??? */
private->pen_style |= PS_DASH; break;
}
GDK_NOTE (MISC, g_print (" ps=%#x", private->pen_style));
}
}
if (values_mask & GDK_GC_CAP_STYLE)
{
switch (values->cap_style)
{
case GDK_CAP_NOT_LAST: /* ??? */
case GDK_CAP_BUTT:
private->pen_style |= PS_ENDCAP_FLAT; break;
case GDK_CAP_ROUND:
private->pen_style |= PS_ENDCAP_ROUND; break;
case GDK_CAP_PROJECTING:
private->pen_style |= PS_ENDCAP_SQUARE; break;
}
GDK_NOTE (MISC, g_print (" ps=%#x", private->pen_style));
}
if (values_mask & GDK_GC_JOIN_STYLE)
{
switch (values->join_style)
{
case GDK_JOIN_MITER:
private->pen_style |= PS_JOIN_MITER;
break;
case GDK_JOIN_ROUND:
private->pen_style |= PS_JOIN_ROUND;
break;
case GDK_JOIN_BEVEL:
private->pen_style |= PS_JOIN_BEVEL;
break;
}
GDK_NOTE (MISC, g_print (" ps=%#x", private->pen_style));
}
private->hwnd = NULL;
private->xgc = NULL;
GDK_NOTE (MISC, g_print ("} = %p\n", private));
return gc;
}
void
gdk_gc_destroy (GdkGC *gc)
{
gdk_gc_unref (gc);
}
GdkGC *
gdk_gc_ref (GdkGC *gc)
{
GdkGCPrivate *private = (GdkGCPrivate*) gc;
g_return_val_if_fail (gc != NULL, NULL);
private->ref_count += 1;
return gc;
}
void
gdk_gc_unref (GdkGC *gc)
{
GdkGCPrivate *private = (GdkGCPrivate*) gc;
g_return_if_fail (gc != NULL);
if (private->ref_count > 1)
private->ref_count -= 1;
else
{
if (private->values_mask & GDK_GC_FONT)
{
#if 0
if (!DeleteObject (private->font))
g_warning ("gdk_gc_unref: DeleteObject #3 failed");
#endif
}
if (private->values_mask & GDK_GC_TILE)
{
gdk_pixmap_unref (private->tile);
}
if (private->values_mask & GDK_GC_STIPPLE)
{
gdk_pixmap_unref (private->stipple);
}
if (private->values_mask & GDK_GC_CLIP_MASK)
{
DeleteObject (private->clip_region);
}
memset (gc, 0, sizeof (GdkGCPrivate));
g_free (gc);
}
}
void
gdk_gc_get_values (GdkGC *gc,
GdkGCValues *values)
{
GdkGCPrivate *private;
g_return_if_fail (gc != NULL);
g_return_if_fail (values != NULL);
private = (GdkGCPrivate*) gc;
values->foreground = private->foreground;
values->background = private->background;
values->font = gdk_font_lookup (private->font);
switch (private->rop2)
{
case R2_COPYPEN:
values->function = GDK_COPY; break;
case R2_NOT:
values->function = GDK_INVERT; break;
case R2_XORPEN:
values->function = GDK_XOR; break;
case R2_BLACK:
values->function = GDK_CLEAR; break;
case R2_MASKPEN:
values->function = GDK_AND; break;
case R2_MASKPENNOT:
values->function = GDK_AND_REVERSE; break;
case R2_MASKNOTPEN:
values->function = GDK_AND_INVERT; break;
case R2_NOP:
values->function = GDK_NOOP; break;
case R2_MERGEPEN:
values->function = GDK_OR; break;
case R2_NOTXORPEN:
values->function = GDK_EQUIV; break;
case R2_MERGEPENNOT:
values->function = GDK_OR_REVERSE; break;
case R2_NOTCOPYPEN:
values->function = GDK_COPY_INVERT; break;
case R2_MERGENOTPEN:
values->function = GDK_OR_INVERT; break;
case R2_NOTMASKPEN:
values->function = GDK_NAND; break;
case R2_WHITE:
values->function = GDK_SET; break;
}
values->fill = private->fill_style;
values->tile = private->tile;
values->stipple = private->stipple;
if (private->clip_region != NULL)
{
RECT rect;
HBRUSH hbr;
HDC hdc;
HGDIOBJ oldbitmap;
GdkPixmap *pixmap;
GetRgnBox (private->clip_region, &rect);
pixmap =
gdk_pixmap_new (NULL, rect.right - rect.left, rect.bottom - rect.top,
1);
hbr = GetStockObject (WHITE_BRUSH);
if ((hdc = CreateCompatibleDC (NULL)) == NULL)
g_warning ("gdk_gc_get_values: CreateCompatibleDC failed");
if ((oldbitmap =
SelectObject (hdc, ((GdkPixmapPrivate *) pixmap)->xwindow)) == NULL)
g_warning ("gdk_gc_get_values: SelectObject #1 failed");
hbr = GetStockObject (BLACK_BRUSH);
if (!FillRect (hdc, &rect, hbr))
g_warning ("gdk_gc_get_values: FillRect failed");
hbr = GetStockObject (WHITE_BRUSH);
if (!FillRgn (hdc, private->clip_region, hbr))
g_warning ("gdk_gc_get_values: FillRgn failed");
if (SelectObject (hdc, oldbitmap) == NULL)
g_warning ("gdk_gc_get_values: SelectObject #2 failed");
DeleteDC (hdc);
values->clip_mask = pixmap;
}
else
values->clip_mask = NULL;
values->subwindow_mode = private->subwindow_mode;
values->ts_x_origin = private->ts_x_origin;
values->ts_y_origin = private->ts_y_origin;
values->clip_x_origin = private->clip_x_origin;
values->clip_y_origin = private->clip_y_origin;
values->graphics_exposures = private->graphics_exposures;
values->line_width = private->pen_width;
if (private->pen_style & PS_SOLID)
values->line_style = GDK_LINE_SOLID;
else if (private->pen_style & PS_DASH)
values->line_style = GDK_LINE_ON_OFF_DASH;
else
values->line_style = GDK_LINE_SOLID;
/* PS_ENDCAP_ROUND is zero */
if (private->pen_style & PS_ENDCAP_FLAT)
values->cap_style = GDK_CAP_BUTT;
else if (private->pen_style & PS_ENDCAP_SQUARE)
values->cap_style = GDK_CAP_PROJECTING;
else
values->cap_style = GDK_CAP_ROUND;
/* PS_JOIN_ROUND is zero */
if (private->pen_style & PS_JOIN_MITER)
values->join_style = GDK_JOIN_MITER;
else if (private->pen_style & PS_JOIN_BEVEL)
values->join_style = GDK_JOIN_BEVEL;
else
values->join_style = GDK_JOIN_ROUND;
}
void
gdk_gc_set_foreground (GdkGC *gc,
GdkColor *color)
{
GdkGCPrivate *private;
g_return_if_fail (gc != NULL);
g_return_if_fail (color != NULL);
private = (GdkGCPrivate*) gc;
{
GDK_NOTE (MISC, g_print ("gdk_gc_set_foreground: (%d) %s\n",
private, gdk_color_to_string (color)));
private->foreground = *color;
private->values_mask |= GDK_GC_FOREGROUND;
}
}
void
gdk_gc_set_background (GdkGC *gc,
GdkColor *color)
{
GdkGCPrivate *private;
g_return_if_fail (gc != NULL);
g_return_if_fail (color != NULL);
private = (GdkGCPrivate*) gc;
GDK_NOTE (MISC, g_print ("gdk_gc_set_backround: (%d) %s\n",
private, gdk_color_to_string(color)));
private->background = *color;
private->values_mask |= GDK_GC_BACKGROUND;
}
void
gdk_gc_set_font (GdkGC *gc,
GdkFont *font)
{
GdkGCPrivate *gc_private;
GdkFontPrivate *font_private;
g_return_if_fail (gc != NULL);
g_return_if_fail (font != NULL);
if (font->type == GDK_FONT_FONT)
{
gc_private = (GdkGCPrivate*) gc;
font_private = (GdkFontPrivate*) font;
GDK_NOTE (MISC, g_print ("gdk_gc_set_font: (%d) %#x\n",
gc_private, font_private->xfont));
gc_private->font = font_private->xfont;
gc_private->values_mask |= GDK_GC_FONT;
}
}
void
gdk_gc_set_function (GdkGC *gc,
GdkFunction function)
{
GdkGCPrivate *private;
g_return_if_fail (gc != NULL);
private = (GdkGCPrivate*) gc;
switch (function)
{
case GDK_COPY:
private->rop2 = R2_COPYPEN; break;
case GDK_INVERT:
private->rop2 = R2_NOT; break;
case GDK_XOR:
private->rop2 = R2_XORPEN; break;
case GDK_CLEAR:
private->rop2 = R2_BLACK; break;
case GDK_AND:
private->rop2 = R2_MASKPEN; break;
case GDK_AND_REVERSE:
private->rop2 = R2_MASKPENNOT; break;
case GDK_AND_INVERT:
private->rop2 = R2_MASKNOTPEN; break;
case GDK_NOOP:
private->rop2 = R2_NOP; break;
case GDK_OR:
private->rop2 = R2_MERGEPEN; break;
case GDK_EQUIV:
private->rop2 = R2_NOTXORPEN; break;
case GDK_OR_REVERSE:
private->rop2 = R2_MERGEPENNOT; break;
case GDK_COPY_INVERT:
private->rop2 = R2_NOTCOPYPEN; break;
case GDK_OR_INVERT:
private->rop2 = R2_MERGENOTPEN; break;
case GDK_NAND:
private->rop2 = R2_NOTMASKPEN; break;
case GDK_SET:
private->rop2 = R2_WHITE; break;
}
private->values_mask |= GDK_GC_FUNCTION;
}
void
gdk_gc_set_fill (GdkGC *gc,
GdkFill fill)
{
GdkGCPrivate *private;
g_return_if_fail (gc != NULL);
private = (GdkGCPrivate*) gc;
private->fill_style = fill;
private->values_mask |= GDK_GC_FILL;
}
void
gdk_gc_set_tile (GdkGC *gc,
GdkPixmap *tile)
{
GdkGCPrivate *private;
GdkPixmapPrivate *pixmap_private;
HBITMAP pixmap;
g_return_if_fail (gc != NULL);
private = (GdkGCPrivate*) gc;
pixmap = NULL;
if (tile)
{
pixmap_private = (GdkPixmapPrivate*) tile;
pixmap = pixmap_private->xwindow;
}
if (private->tile != NULL)
gdk_pixmap_unref (private->tile);
private->tile = tile;
if (tile)
gdk_pixmap_ref (tile);
if (pixmap != NULL)
private->values_mask |= GDK_GC_TILE;
else
private->values_mask &= ~GDK_GC_TILE;
}
void
gdk_gc_set_stipple (GdkGC *gc,
GdkPixmap *stipple)
{
GdkGCPrivate *private;
GdkPixmapPrivate *pixmap_private;
HBITMAP pixmap;
g_return_if_fail (gc != NULL);
private = (GdkGCPrivate*) gc;
pixmap = NULL;
if (stipple)
{
pixmap_private = (GdkPixmapPrivate*) stipple;
pixmap = pixmap_private->xwindow;
}
if (private->stipple != NULL)
gdk_pixmap_unref (private->stipple);
private->stipple = stipple;
if (stipple)
gdk_pixmap_ref (stipple);
if (pixmap != NULL)
private->values_mask |= GDK_GC_STIPPLE;
else
private->values_mask &= ~GDK_GC_STIPPLE;
}
void
gdk_gc_set_ts_origin (GdkGC *gc,
gint x,
gint y)
{
GdkGCPrivate *private;
g_return_if_fail (gc != NULL);
private = (GdkGCPrivate*) gc;
private->ts_x_origin = x;
private->ts_y_origin = y;
private->values_mask |= GDK_GC_TS_X_ORIGIN |GDK_GC_TS_Y_ORIGIN;
}
void
gdk_gc_set_clip_origin (GdkGC *gc,
gint x,
gint y)
{
GdkGCPrivate *private;
g_return_if_fail (gc != NULL);
private = (GdkGCPrivate*) gc;
GDK_NOTE (MISC, g_print ("gdk_gc_set_clip_origin: (%d) +%d+%d\n",
private, x, y));
private->clip_x_origin = x;
private->clip_y_origin = y;
private->values_mask |= GDK_GC_CLIP_X_ORIGIN |GDK_GC_CLIP_Y_ORIGIN;
}
void
gdk_gc_set_clip_mask (GdkGC *gc,
GdkBitmap *mask)
{
GdkGCPrivate *private;
HBITMAP xmask;
g_return_if_fail (gc != NULL);
if (mask)
{
GdkWindowPrivate *mask_private;
mask_private = (GdkWindowPrivate*) mask;
if (mask_private->destroyed)
return;
xmask = mask_private->xwindow;
}
else
xmask = NULL;
private = (GdkGCPrivate*) gc;
GDK_NOTE (MISC, g_print ("gdk_gc_set_clip_mask: (%d) %#x\n", private, xmask));
if (private->clip_region != NULL)
if (!DeleteObject (private->clip_region))
g_warning ("gdk_gc_set_clip_mask: DeleteObject failed");
if (xmask != NULL)
{
private->clip_region = BitmapToRegion (xmask);
{
RECT rect;
GetRgnBox (private->clip_region, &rect);
GDK_NOTE (MISC, g_print ("...box = %dx%d@+%d+%d\n",
rect.right - rect.left, rect.bottom - rect.top,
rect.left, rect.top));
}
#if 0
/* Test code that sets clip region to whole of mask */
{
BITMAP bm;
GetObject (xmask, sizeof (bm), &bm);
private->clip_region = CreateRectRgn (0, 0, bm.bmWidth, bm.bmHeight);
}
#endif
private->values_mask |= GDK_GC_CLIP_MASK;
}
else
{
private->values_mask &= ~GDK_GC_CLIP_MASK;
private->clip_region = NULL;
}
}
void
gdk_gc_set_clip_rectangle (GdkGC *gc,
GdkRectangle *rectangle)
{
GdkGCPrivate *private;
g_return_if_fail (gc != NULL);
private = (GdkGCPrivate*) gc;
if (private->clip_region != NULL)
if (!DeleteObject (private->clip_region))
g_warning ("gdk_gc_set_clip_rectangle: DeleteObject failed");
if (rectangle)
{
GDK_NOTE (MISC,
g_print ("gdk_gc_set_clip_rectangle: (%d) %dx%d@+%d+%d\n",
private,
rectangle->width, rectangle->height,
rectangle->x, rectangle->y));
if ((private->clip_region =
CreateRectRgn (rectangle->x, rectangle->y,
rectangle->x + rectangle->width,
rectangle->y + rectangle->height)) == NULL)
g_warning ("gdk_gc_set_clip_rectangle: CreateRectRgn failed");
private->values_mask |= GDK_GC_CLIP_MASK;
}
else
{
GDK_NOTE (MISC, g_print ("gdk_gc_set_clip_rectangle: (%d) None\n",
private));
private->clip_region = NULL;
private->values_mask &= ~GDK_GC_CLIP_MASK;
}
private->values_mask &= ~(GDK_GC_CLIP_X_ORIGIN |GDK_GC_CLIP_Y_ORIGIN);
}
void
gdk_gc_set_clip_region (GdkGC *gc,
GdkRegion *region)
{
GdkGCPrivate *private;
g_return_if_fail (gc != NULL);
private = (GdkGCPrivate*) gc;
GDK_NOTE (MISC, g_print ("gdk_gc_set_clip_region: (%d) %s\n",
private, (region != NULL ? "xxx" : "None")));
if (private->clip_region != NULL)
if (!DeleteObject (private->clip_region))
g_warning ("gdk_gc_set_clip_region: DeleteObject failed");
if (region)
{
GdkRegionPrivate *region_private;
region_private = (GdkRegionPrivate*) region;
private->clip_region = CreateRectRgn (1, 1, 0, 0);
CombineRgn (private->clip_region, region_private->xregion, NULL, RGN_COPY);
private->values_mask |= GDK_GC_CLIP_MASK;
}
else
{
private->clip_region = NULL;
private->values_mask &= ~GDK_GC_CLIP_MASK;
}
}
void
gdk_gc_set_subwindow (GdkGC *gc,
GdkSubwindowMode mode)
{
GdkGCPrivate *private;
g_return_if_fail (gc != NULL);
private = (GdkGCPrivate*) gc;
private->subwindow_mode = mode;
private->values_mask |= GDK_GC_SUBWINDOW;
}
void
gdk_gc_set_exposures (GdkGC *gc,
gint exposures)
{
GdkGCPrivate *private;
g_return_if_fail (gc != NULL);
private = (GdkGCPrivate*) gc;
private->graphics_exposures = exposures;
private->values_mask |= GDK_GC_EXPOSURES;;
}
void
gdk_gc_set_line_attributes (GdkGC *gc,
gint line_width,
GdkLineStyle line_style,
GdkCapStyle cap_style,
GdkJoinStyle join_style)
{
GdkGCPrivate *private;
int xline_style;
int xcap_style;
int xjoin_style;
g_return_if_fail (gc != NULL);
private = (GdkGCPrivate*) gc;
GDK_NOTE (MISC,
g_print ("gdk_gc_set_line_attributes: (%d) %d %s %s %s\n",
private, line_width,
(line_style == GDK_LINE_SOLID ? "SOLID" :
(line_style == GDK_LINE_ON_OFF_DASH ? "ON_OFF_DASH" :
(line_style == GDK_LINE_DOUBLE_DASH ? "DOUBLE_DASH" :
"???"))),
(cap_style == GDK_CAP_BUTT ? "BUTT" :
(cap_style == GDK_CAP_ROUND ? "ROUND" :
(cap_style == GDK_CAP_PROJECTING ? "PROJECTING" :
"???"))),
(join_style == GDK_JOIN_MITER ? "MITER" :
(join_style == GDK_JOIN_ROUND ? "ROUND" :
(join_style == GDK_JOIN_BEVEL ? "BEVEL" :
"???")))));
private->pen_width = line_width;
/* Mask old style bits away */
private->pen_style &= ~(PS_STYLE_MASK|PS_ENDCAP_MASK|PS_JOIN_MASK);
/* Add new bits */
switch (line_style)
{
case GDK_LINE_SOLID:
private->pen_style |= PS_SOLID; break;
case GDK_LINE_ON_OFF_DASH:
case GDK_LINE_DOUBLE_DASH: /* ??? */
private->pen_style |= PS_DASH; break;
}
switch (cap_style)
{
case GDK_CAP_NOT_LAST:
/* ??? */
break;
case GDK_CAP_BUTT:
private->pen_style |= PS_ENDCAP_FLAT; break;
case GDK_CAP_ROUND:
private->pen_style |= PS_ENDCAP_ROUND; break;
case GDK_CAP_PROJECTING:
private->pen_style |= PS_ENDCAP_SQUARE; break;
}
switch (join_style)
{
case GDK_JOIN_MITER:
private->pen_style |= PS_JOIN_MITER;
break;
case GDK_JOIN_ROUND:
private->pen_style |= PS_JOIN_ROUND;
break;
case GDK_JOIN_BEVEL:
private->pen_style |= PS_JOIN_BEVEL;
break;
}
}
void
gdk_gc_set_dashes (GdkGC *gc,
gint dash_offset,
gchar dash_list[],
gint n)
{
GdkGCPrivate *private;
g_return_if_fail (gc != NULL);
g_return_if_fail (dash_list != NULL);
/* XXX ??? */
g_warning ("gdk_gc_set_dashes: Not implemented");
}
void
gdk_gc_copy (GdkGC *dst_gc, GdkGC *src_gc)
{
GdkGCPrivate *dst_private, *src_private;
src_private = (GdkGCPrivate *) src_gc;
dst_private = (GdkGCPrivate *) dst_gc;
*dst_private = *src_private;
}
HDC
gdk_gc_predraw (GdkWindowPrivate *window_private,
GdkGCPrivate *gc_private)
{
GdkColormapPrivate *colormap_private =
(GdkColormapPrivate *) window_private->colormap;
COLORREF bg;
COLORREF fg;
LOGBRUSH logbrush;
HPEN hpen;
HBRUSH hbr;
g_assert (gc_private->xgc == NULL);
if (window_private->window_type == GDK_WINDOW_PIXMAP)
{
if ((gc_private->xgc = CreateCompatibleDC (NULL)) == NULL)
g_warning ("gdk_gc_predraw: CreateCompatibleDC failed");
if ((gc_private->saved_dc = SaveDC (gc_private->xgc)) == 0)
g_warning ("gdk_gc_predraw: SaveDC #1 failed");
if (SelectObject (gc_private->xgc, window_private->xwindow) == NULL)
g_warning ("gdk_gc_predraw: SelectObject #1 failed");
}
else
{
if ((gc_private->xgc = GetDC (window_private->xwindow)) == NULL)
g_warning ("gdk_gc_predraw: GetDC failed");
if ((gc_private->saved_dc = SaveDC (gc_private->xgc)) == 0)
g_warning ("gdk_gc_predraw: SaveDC #2 failed");
}
gc_private->hwnd = window_private->xwindow;
if (colormap_private == NULL)
{
/* A 1 bit deep bitmap */
struct
{
WORD palVersion;
WORD palNumEntries;
PALETTEENTRY palPalEntry[2];
} logpal;
static HPALETTE hpal = NULL;
if (hpal == NULL)
{
/* Create a b&w palette */
logpal.palVersion = 0x300;
logpal.palNumEntries = 2;
logpal.palPalEntry[0].peRed =
logpal.palPalEntry[0].peGreen =
logpal.palPalEntry[0].peBlue = 0x00;
logpal.palPalEntry[0].peFlags = 0x00;
logpal.palPalEntry[1].peRed =
logpal.palPalEntry[1].peGreen =
logpal.palPalEntry[1].peBlue = 0xFF;
logpal.palPalEntry[1].peFlags = 0x00;
if ((hpal = CreatePalette ((LOGPALETTE *) &logpal)) == NULL)
g_warning ("gdk_gc_predraw: CreatePalette failed");
}
SelectPalette (gc_private->xgc, hpal, FALSE);
RealizePalette (gc_private->xgc);
fg = PALETTEINDEX (gc_private->foreground.pixel);
}
else if (colormap_private != NULL
&& colormap_private->xcolormap->rc_palette)
{
int k;
if (SelectPalette (gc_private->xgc,
colormap_private->xcolormap->palette, FALSE) == NULL)
g_warning ("gdk_gc_predraw: SelectPalette failed");
if (TRUE || colormap_private->xcolormap->stale)
{
if ((k = RealizePalette (gc_private->xgc)) == GDI_ERROR)
g_warning ("gdk_gc_predraw: RealizePalette failed");
colormap_private->xcolormap->stale = FALSE;
}
#if 0
g_print ("Selected palette %#x for gc %#x, realized %d colors\n",
colormap_private->xcolormap->palette, gc_private->xgc, k);
#endif
fg = PALETTEINDEX (gc_private->foreground.pixel);
}
else
{
COLORREF foreground = RGB (gc_private->foreground.red >> 8,
gc_private->foreground.green >> 8,
gc_private->foreground.blue >> 8);
fg = GetNearestColor (gc_private->xgc, foreground);
}
logbrush.lbStyle = BS_SOLID;
logbrush.lbColor = fg;
if ((hpen = ExtCreatePen (gc_private->pen_style, gc_private->pen_width,
&logbrush, 0, NULL)) == NULL)
g_warning ("gdk_gc_predraw: CreatePen failed");
if (SelectObject (gc_private->xgc, hpen) == NULL)
g_warning ("gdk_gc_predraw: SelectObject #2 failed");
if (SetTextColor (gc_private->xgc, fg) == CLR_INVALID)
g_warning ("gdk_gc_predraw: SetTextColor failed");
if ((hbr = CreateSolidBrush (fg)) == NULL)
g_warning ("gdk_gc_predraw: CreateSolidBrush failed");
if (SelectObject (gc_private->xgc, hbr) == NULL)
g_warning ("gdk_gc_predraw: SelectObject #3 failed");
if (gc_private->values_mask & GDK_GC_BACKGROUND)
{
if (colormap_private == NULL)
{
/* a bitmap */
bg = PALETTEINDEX (gc_private->background.pixel);
}
else if (colormap_private != NULL
&& colormap_private->xcolormap->rc_palette)
{
bg = PALETTEINDEX (gc_private->background.pixel);
}
else
{
COLORREF background = RGB (gc_private->background.red >> 8,
gc_private->background.green >> 8,
gc_private->background.blue >> 8);
bg = GetNearestColor (gc_private->xgc, background);
}
if (SetBkColor (gc_private->xgc, bg) == CLR_INVALID)
g_warning ("gdk_gc_predraw: SetBkColor failed");
}
if (SetBkMode (gc_private->xgc, TRANSPARENT) == 0)
g_warning ("gdk_gc_predraw: SetBkMode failed");
if (SetTextAlign (gc_private->xgc, TA_BASELINE) == GDI_ERROR)
g_warning ("gdk_gc_predraw: SetTextAlign failed");
if (gc_private->values_mask & GDK_GC_FONT)
if (SelectObject (gc_private->xgc, gc_private->font) == NULL)
g_warning ("gdk_gc_predraw: SelectObject #4 failed");
if (gc_private->values_mask & GDK_GC_FUNCTION)
if (SetROP2 (gc_private->xgc, gc_private->rop2) == 0)
g_warning ("gdk_gc_predraw: SetROP2 failed");
if (gc_private->values_mask & GDK_GC_CLIP_MASK
&& gc_private->clip_region != NULL)
{
if (gc_private->values_mask & (GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN))
OffsetRgn (gc_private->clip_region,
gc_private->clip_x_origin, gc_private->clip_y_origin);
SelectClipRgn (gc_private->xgc, gc_private->clip_region);
}
return gc_private->xgc;
}
void
gdk_gc_postdraw (GdkWindowPrivate *window_private,
GdkGCPrivate *gc_private)
{
HGDIOBJ hpen;
HGDIOBJ hbr;
GdkColormapPrivate *colormap_private =
(GdkColormapPrivate *) window_private->colormap;
if ((hpen = GetCurrentObject (gc_private->xgc, OBJ_PEN)) == NULL)
g_warning ("gdk_gc_postdraw: GetCurrentObject #1 failed");
if ((hbr = GetCurrentObject (gc_private->xgc, OBJ_BRUSH)) == NULL)
g_warning ("gdk_gc_postdraw: GetCurrentObject #2 failed");
if (!RestoreDC (gc_private->xgc, gc_private->saved_dc))
g_warning ("gdk_gc_postdraw: RestoreDC failed");
#if 0
if (colormap_private != NULL
&& colormap_private->xcolormap->rc_palette
&& colormap_private->xcolormap->stale)
{
SelectPalette (gc_private->xgc, GetStockObject (DEFAULT_PALETTE), FALSE);
if (!UnrealizeObject (colormap_private->xcolormap->palette))
g_warning ("gdk_gc_postraw: UnrealizeObject failed");
}
#endif
if (window_private->window_type == GDK_WINDOW_PIXMAP)
{
if (!DeleteDC (gc_private->xgc))
g_warning ("gdk_gc_postdraw: DeleteDC failed");
}
else
{
ReleaseDC (gc_private->hwnd, gc_private->xgc);
}
if (hpen != NULL)
if (!DeleteObject (hpen))
g_warning ("gdk_gc_postdraw: DeleteObject #1 failed");
if (hbr != NULL)
if (!DeleteObject (hbr))
g_warning ("gdk_gc_postdraw: DeleteObject #2 failed");
gc_private->xgc = NULL;
}
/* This function originally from Jean-Edouard Lachand-Robert, and
* available at www.codeguru.com. Simplified for our needs, now
* handles just one-bit deep bitmaps (in Window parlance, ie those
* that GDK calls bitmaps (and not pixmaps), with zero pixels being
* transparent.
*/
/*
* BitmapToRegion : Create a region from the "non-transparent" pixels of
* a bitmap
* Author : Jean-Edouard Lachand-Robert
* (http://www.geocities.com/Paris/LeftBank/1160/resume.htm), June 1998.
*/
HRGN
BitmapToRegion (HBITMAP hBmp)
{
HRGN hRgn = NULL;
HDC hMemDC;
BITMAP bm;
struct
{
BITMAPINFOHEADER bmiHeader;
#if 1
WORD bmiColors[2];
#else
RGBQUAD bmiColors[2];
#endif
} bmi;
VOID *pbits8;
HBITMAP hbm8;
struct
{
WORD palVersion;
WORD palNumEntries;
PALETTEENTRY palPalEntry[2];
} logpal;
static HPALETTE bwPalette = NULL;
HBITMAP holdBmp;
HDC hDC;
BITMAP bm8;
HBITMAP holdBmp2;
DWORD maxRects;
RGNDATA *pData;
BYTE *p8;
int x, y;
HRGN h;
/* Create a B&W palette */
if (bwPalette == NULL)
{
/* Create a b&w palette */
logpal.palVersion = 0x300;
logpal.palNumEntries = 2;
logpal.palPalEntry[0].peRed =
logpal.palPalEntry[0].peGreen =
logpal.palPalEntry[0].peBlue = 0;
logpal.palPalEntry[0].peFlags = 0;
logpal.palPalEntry[1].peRed =
logpal.palPalEntry[1].peGreen =
logpal.palPalEntry[1].peBlue = 0xFF;
logpal.palPalEntry[1].peFlags = 0;
if ((bwPalette = CreatePalette ((LOGPALETTE *) &logpal)) == NULL)
g_warning ("BitmapToRegion: CreatePalette failed");
}
/* Create a memory DC inside which we will scan the bitmap content */
hMemDC = CreateCompatibleDC (NULL);
if (!hMemDC)
{
g_warning ("BitmapToRegion: CreateCompatibleDC #1 failed");
return NULL;
}
SelectPalette (hMemDC, bwPalette, FALSE);
RealizePalette (hMemDC);
/* Get bitmap size */
GetObject(hBmp, sizeof(bm), &bm);
/* Create a 8 bits depth bitmap and select it into the memory DC */
bmi.bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
bmi.bmiHeader.biWidth = bm.bmWidth;
bmi.bmiHeader.biHeight = bm.bmHeight;
bmi.bmiHeader.biPlanes = 1;
bmi.bmiHeader.biBitCount = 8;
bmi.bmiHeader.biCompression = BI_RGB;
bmi.bmiHeader.biSizeImage = 0;
bmi.bmiHeader.biXPelsPerMeter = 0;
bmi.bmiHeader.biYPelsPerMeter = 0;
bmi.bmiHeader.biClrUsed = 2;
bmi.bmiHeader.biClrImportant = 2;
#if 1
bmi.bmiColors[0] = 0;
bmi.bmiColors[1] = 1;
hbm8 = CreateDIBSection (hMemDC, (BITMAPINFO *)&bmi,
DIB_PAL_COLORS, &pbits8, NULL, 0);
#else
bmi.bmiColors[0].rgbBlue =
bmi.bmiColors[0].rgbGreen =
bmi.bmiColors[0].rgbRed = 0x00;
bmi.bmiColors[0].rgbReserved = 0x00;
bmi.bmiColors[1].rgbBlue =
bmi.bmiColors[1].rgbGreen =
bmi.bmiColors[1].rgbRed = 0xFF;
bmi.bmiColors[0].rgbReserved = 0x00;
hbm8 = CreateDIBSection (hMemDC, (BITMAPINFO *)&bmi,
DIB_RGB_COLORS, &pbits8, NULL, 0);
#endif
if (!hbm8)
{
g_warning ("BitmapToRegion: CreateDIBSection failed");
DeleteDC (hMemDC);
return NULL;
}
holdBmp = (HBITMAP) SelectObject (hMemDC, hbm8);
/* Create a DC just to copy the bitmap into the memory DC*/
hDC = CreateCompatibleDC (hMemDC);
if (!hDC)
{
g_warning ("BitmapToRegion: CreateCompatibleDC #2 failed");
SelectObject (hMemDC, holdBmp);
DeleteObject (hbm8);
DeleteDC (hMemDC);
return NULL;
}
/* Get how many bytes per row we have for the bitmap bits */
GetObject (hbm8, sizeof (bm8), &bm8);
/* Hans Breuer found a fix to the long-standing erroneous behaviour
* on NT 4.0: There seems to be a bug in Win NT 4.0 GDI: scanlines
* in bitmaps are dword aligned on both Win95 and NT. In the case of
* a bitmap with 22 bytes worth of width, GetObject above returns
* with bmWidth == 22. On Win95 bmWidthBytes == 24, as it should be,
* but on NT is it 22. We need to correct this here.
*/
bm8.bmWidthBytes = (((bm8.bmWidthBytes-1)/4)+1)*4; /* dword aligned!! */
/* Copy the bitmap into the memory DC*/
holdBmp2 = (HBITMAP) SelectObject (hDC, hBmp);
if (!BitBlt (hMemDC, 0, 0, bm.bmWidth, bm.bmHeight, hDC, 0, 0, SRCCOPY))
{
g_warning ("BitmapToRegion: BitBlt failed");
SelectObject (hDC, holdBmp2);
SelectObject (hMemDC, holdBmp);
DeleteObject (hbm8);
DeleteDC (hMemDC);
return NULL;
}
SelectObject (hDC, holdBmp2);
DeleteDC (hDC);
/* For better performances, we will use the ExtCreateRegion()
* function to create the region. This function take a RGNDATA
* structure on entry. We will add rectangles by amount of
* ALLOC_UNIT number in this structure.
*/
#define ALLOC_UNIT 100
maxRects = ALLOC_UNIT;
pData = g_malloc (sizeof (RGNDATAHEADER) + (sizeof (RECT) * maxRects));
pData->rdh.dwSize = sizeof (RGNDATAHEADER);
pData->rdh.iType = RDH_RECTANGLES;
pData->rdh.nCount = pData->rdh.nRgnSize = 0;
SetRect (&pData->rdh.rcBound, MAXLONG, MAXLONG, 0, 0);
/* Scan each bitmap from bottom to top (the bitmap is inverted vertically)*/
p8 = (BYTE *) pbits8 + (bm8.bmHeight - 1) * bm8.bmWidthBytes;
for (y = 0; y < bm.bmHeight; y++)
{
/* Scan each bitmap row from left to right*/
for (x = 0; x < bm.bmWidth; x++)
{
/* Search for a continuous range of "non transparent pixels"*/
int x0 = x;
BYTE *p = p8 + x;
while (x < bm.bmWidth)
{
if (*p == 0)
/* This pixel is "transparent"*/
break;
p++;
x++;
}
if (x > x0)
{
RECT *pr;
/* Add the pixels (x0, y) to (x, y+1) as a new rectangle
* in the region
*/
if (pData->rdh.nCount >= maxRects)
{
maxRects += ALLOC_UNIT;
pData = g_realloc (pData, sizeof(RGNDATAHEADER)
+ (sizeof(RECT) * maxRects));
}
pr = (RECT *) &pData->Buffer;
SetRect (&pr[pData->rdh.nCount], x0, y, x, y+1);
if (x0 < pData->rdh.rcBound.left)
pData->rdh.rcBound.left = x0;
if (y < pData->rdh.rcBound.top)
pData->rdh.rcBound.top = y;
if (x > pData->rdh.rcBound.right)
pData->rdh.rcBound.right = x;
if (y+1 > pData->rdh.rcBound.bottom)
pData->rdh.rcBound.bottom = y+1;
pData->rdh.nCount++;
/* On Windows98, ExtCreateRegion() may fail if the
* number of rectangles is too large (ie: >
* 4000). Therefore, we have to create the region by
* multiple steps.
*/
if (pData->rdh.nCount == 2000)
{
HRGN h = ExtCreateRegion (NULL, sizeof(RGNDATAHEADER) + (sizeof(RECT) * maxRects), pData);
if (hRgn)
{
CombineRgn(hRgn, hRgn, h, RGN_OR);
DeleteObject(h);
}
else
hRgn = h;
pData->rdh.nCount = 0;
SetRect (&pData->rdh.rcBound, MAXLONG, MAXLONG, 0, 0);
}
}
}
/* Go to next row (remember, the bitmap is inverted vertically)*/
p8 -= bm8.bmWidthBytes;
}
/* Create or extend the region with the remaining rectangles*/
h = ExtCreateRegion (NULL, sizeof (RGNDATAHEADER)
+ (sizeof (RECT) * maxRects), pData);
if (hRgn)
{
CombineRgn (hRgn, hRgn, h, RGN_OR);
DeleteObject (h);
}
else
hRgn = h;
/* Clean up*/
SelectObject(hMemDC, holdBmp);
DeleteObject (hbm8);
DeleteDC (hMemDC);
return hRgn;
}
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