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/* GDK - The GIMP Drawing Kit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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* Copyright (C) 1998-2004 Tor Lillqvist
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* Copyright (C) 2000-2004 Hans Breuer
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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#define LINE_ATTRIBUTES (GDK_GC_LINE_WIDTH|GDK_GC_LINE_STYLE| \
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GDK_GC_CAP_STYLE|GDK_GC_JOIN_STYLE)
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#include "gdkpixmap.h"
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#include "gdkregion-generic.h"
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#include "gdkprivate-win32.h"
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static void gdk_win32_gc_get_values (GdkGC *gc,
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static void gdk_win32_gc_set_values (GdkGC *gc,
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GdkGCValuesMask values_mask);
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static void gdk_win32_gc_set_dashes (GdkGC *gc,
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static void gdk_gc_win32_class_init (GdkGCWin32Class *klass);
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static void gdk_gc_win32_finalize (GObject *object);
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static gpointer parent_class = NULL;
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_gdk_gc_win32_get_type (void)
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static GType object_type = 0;
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static const GTypeInfo object_info =
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sizeof (GdkGCWin32Class),
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(GBaseFinalizeFunc) NULL,
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(GClassInitFunc) gdk_gc_win32_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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(GInstanceInitFunc) NULL,
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object_type = g_type_register_static (GDK_TYPE_GC,
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gdk_gc_win32_class_init (GdkGCWin32Class *klass)
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GdkGCClass *gc_class = GDK_GC_CLASS (klass);
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parent_class = g_type_class_peek_parent (klass);
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object_class->finalize = gdk_gc_win32_finalize;
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gc_class->get_values = gdk_win32_gc_get_values;
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gc_class->set_values = gdk_win32_gc_set_values;
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gc_class->set_dashes = gdk_win32_gc_set_dashes;
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gdk_gc_win32_finalize (GObject *object)
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GdkGCWin32 *win32_gc = GDK_GC_WIN32 (object);
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if (win32_gc->hcliprgn != NULL)
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DeleteObject (win32_gc->hcliprgn);
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if (win32_gc->values_mask & GDK_GC_FONT)
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gdk_font_unref (win32_gc->font);
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if (win32_gc->pen_dashes)
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g_free (win32_gc->pen_dashes);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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fixup_pen (GdkGCWin32 *win32_gc)
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win32_gc->pen_style = 0;
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/* First look at GDK width and end cap style, set GDI pen type and
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if (win32_gc->pen_width == 0 &&
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win32_gc->cap_style == GDK_CAP_NOT_LAST)
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/* Use a cosmetic pen, always width 1 */
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win32_gc->pen_style |= PS_COSMETIC;
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else if (win32_gc->pen_width <= 1 &&
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win32_gc->cap_style == GDK_CAP_BUTT)
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/* For 1 pixel wide lines PS_ENDCAP_ROUND means draw both ends,
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* even for one pixel length lines. But if we are drawing dashed
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* lines we can't use PS_ENDCAP_ROUND.
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if (win32_gc->line_style == GDK_LINE_SOLID)
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win32_gc->pen_style |= PS_GEOMETRIC | PS_ENDCAP_ROUND;
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win32_gc->pen_style |= PS_GEOMETRIC | PS_ENDCAP_FLAT;
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win32_gc->pen_style |= PS_GEOMETRIC;
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switch (win32_gc->cap_style)
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/* For non-zero-width lines X11's CapNotLast works like CapButt */
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case GDK_CAP_NOT_LAST:
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win32_gc->pen_style |= PS_ENDCAP_FLAT;
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win32_gc->pen_style |= PS_ENDCAP_ROUND;
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case GDK_CAP_PROJECTING:
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win32_gc->pen_style |= PS_ENDCAP_SQUARE;
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/* Next look at GDK line style, set GDI pen style attribute */
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switch (win32_gc->line_style)
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win32_gc->pen_style |= PS_SOLID;
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case GDK_LINE_ON_OFF_DASH:
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case GDK_LINE_DOUBLE_DASH:
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if (win32_gc->pen_dashes == NULL)
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win32_gc->pen_dashes = g_new (DWORD, 1);
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win32_gc->pen_dashes[0] = 4;
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win32_gc->pen_num_dashes = 1;
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if (G_WIN32_IS_NT_BASED ())
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if (!(win32_gc->pen_style & PS_TYPE_MASK) == PS_GEOMETRIC &&
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win32_gc->pen_dashes[0] == 1 &&
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(win32_gc->pen_num_dashes == 1 ||
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(win32_gc->pen_num_dashes == 2 && win32_gc->pen_dashes[0] == 1)))
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win32_gc->pen_style |= PS_ALTERNATE;
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win32_gc->pen_style |= PS_USERSTYLE;
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/* Render "short" on-off dashes drawn with R2_COPYPEN and a
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* cosmetic pen using PS_DOT
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if (win32_gc->line_style == GDK_LINE_ON_OFF_DASH &&
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win32_gc->rop2 == R2_COPYPEN &&
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(win32_gc->pen_style & PS_TYPE_MASK) == PS_COSMETIC &&
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win32_gc->pen_dashes[0] <= 2 &&
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(win32_gc->pen_num_dashes == 1 ||
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(win32_gc->pen_num_dashes == 2 && win32_gc->pen_dashes[1] <= 2)))
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win32_gc->pen_style |= PS_DOT;
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/* Otherwise render opaque lines solid, horizontal or
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* vertical ones will be dashed manually, see
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* gdkdrawable-win32.c.
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win32_gc->pen_style |= PS_SOLID;
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/* Last, for if the GDI pen is geometric, set the join attribute */
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if ((win32_gc->pen_style & PS_TYPE_MASK) == PS_GEOMETRIC)
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switch (win32_gc->join_style)
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win32_gc->pen_style |= PS_JOIN_MITER;
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win32_gc->pen_style |= PS_JOIN_ROUND;
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win32_gc->pen_style |= PS_JOIN_BEVEL;
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gdk_win32_gc_values_to_win32values (GdkGCValues *values,
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GdkGCValuesMask mask,
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GdkGCWin32 *win32_gc)
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GDK_NOTE (GC, g_print ("{"));
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if (mask & GDK_GC_FOREGROUND)
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win32_gc->values_mask |= GDK_GC_FOREGROUND;
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GDK_NOTE (GC, (g_print ("fg=%.06x",
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_gdk_gc_get_fg_pixel (&win32_gc->parent_instance)),
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if (mask & GDK_GC_BACKGROUND)
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win32_gc->values_mask |= GDK_GC_BACKGROUND;
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GDK_NOTE (GC, (g_print ("%sbg=%.06x", s,
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_gdk_gc_get_bg_pixel (&win32_gc->parent_instance)),
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if ((mask & GDK_GC_FONT) && (values->font->type == GDK_FONT_FONT
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|| values->font->type == GDK_FONT_FONTSET))
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if (win32_gc->font != NULL)
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gdk_font_unref (win32_gc->font);
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win32_gc->font = values->font;
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if (win32_gc->font != NULL)
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gdk_font_ref (win32_gc->font);
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win32_gc->values_mask |= GDK_GC_FONT;
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GDK_NOTE (GC, (g_print ("%sfont=%p", s, win32_gc->font),
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win32_gc->values_mask &= ~GDK_GC_FONT;
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GDK_NOTE (GC, (g_print ("%sfont=NULL", s),
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if (mask & GDK_GC_FUNCTION)
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GDK_NOTE (GC, (g_print ("%srop2=", s),
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switch (values->function)
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#define CASE(x,y) case GDK_##x: win32_gc->rop2 = R2_##y; GDK_NOTE (GC, g_print (#y)); break
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CASE (COPY, COPYPEN);
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CASE (AND_REVERSE, MASKPENNOT);
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CASE (AND_INVERT, MASKNOTPEN);
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CASE (EQUIV, NOTXORPEN);
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CASE (OR_REVERSE, MERGEPENNOT);
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CASE (COPY_INVERT, NOTCOPYPEN);
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CASE (OR_INVERT, MERGENOTPEN);
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CASE (NAND, NOTMASKPEN);
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CASE (NOR, NOTMERGEPEN);
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win32_gc->values_mask |= GDK_GC_FUNCTION;
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if (mask & GDK_GC_FILL)
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win32_gc->values_mask |= GDK_GC_FILL;
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GDK_NOTE (GC, (g_print ("%sfill=%s", s,
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_gdk_win32_fill_style_to_string (values->fill)),
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if (mask & GDK_GC_TILE)
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if (values->tile != NULL)
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win32_gc->values_mask |= GDK_GC_TILE;
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(g_print ("%stile=%p", s,
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GDK_PIXMAP_HBITMAP (values->tile)),
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win32_gc->values_mask &= ~GDK_GC_TILE;
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GDK_NOTE (GC, (g_print ("%stile=NULL", s),
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if (mask & GDK_GC_STIPPLE)
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if (values->stipple != NULL)
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win32_gc->values_mask |= GDK_GC_STIPPLE;
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(g_print ("%sstipple=%p", s,
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GDK_PIXMAP_HBITMAP (values->stipple)),
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win32_gc->values_mask &= ~GDK_GC_STIPPLE;
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GDK_NOTE (GC, (g_print ("%sstipple=NULL", s),
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if (mask & GDK_GC_CLIP_MASK)
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if (win32_gc->hcliprgn != NULL)
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DeleteObject (win32_gc->hcliprgn);
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if (values->clip_mask != NULL)
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win32_gc->hcliprgn = _gdk_win32_bitmap_to_hrgn (values->clip_mask);
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win32_gc->values_mask |= GDK_GC_CLIP_MASK;
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win32_gc->hcliprgn = NULL;
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win32_gc->values_mask &= ~GDK_GC_CLIP_MASK;
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GDK_NOTE (GC, (g_print ("%sclip=%p", s, win32_gc->hcliprgn),
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if (mask & GDK_GC_SUBWINDOW)
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win32_gc->subwindow_mode = values->subwindow_mode;
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win32_gc->values_mask |= GDK_GC_SUBWINDOW;
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GDK_NOTE (GC, (g_print ("%ssubw=%d", s, win32_gc->subwindow_mode),
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if (mask & GDK_GC_TS_X_ORIGIN)
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win32_gc->values_mask |= GDK_GC_TS_X_ORIGIN;
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GDK_NOTE (GC, (g_print ("%sts_x=%d", s, values->ts_x_origin),
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if (mask & GDK_GC_TS_Y_ORIGIN)
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win32_gc->values_mask |= GDK_GC_TS_Y_ORIGIN;
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GDK_NOTE (GC, (g_print ("%sts_y=%d", s, values->ts_y_origin),
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if (mask & GDK_GC_CLIP_X_ORIGIN)
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win32_gc->values_mask |= GDK_GC_CLIP_X_ORIGIN;
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GDK_NOTE (GC, (g_print ("%sclip_x=%d", s, values->clip_x_origin),
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if (mask & GDK_GC_CLIP_Y_ORIGIN)
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win32_gc->values_mask |= GDK_GC_CLIP_Y_ORIGIN;
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GDK_NOTE (GC, (g_print ("%sclip_y=%d", s, values->clip_y_origin),
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if (mask & GDK_GC_EXPOSURES)
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win32_gc->graphics_exposures = values->graphics_exposures;
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win32_gc->values_mask |= GDK_GC_EXPOSURES;
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GDK_NOTE (GC, (g_print ("%sexp=%d", s, win32_gc->graphics_exposures),
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if (mask & GDK_GC_LINE_WIDTH)
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win32_gc->pen_width = values->line_width;
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win32_gc->values_mask |= GDK_GC_LINE_WIDTH;
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GDK_NOTE (GC, (g_print ("%spw=%d", s, win32_gc->pen_width),
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if (mask & GDK_GC_LINE_STYLE)
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win32_gc->line_style = values->line_style;
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win32_gc->values_mask |= GDK_GC_LINE_STYLE;
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if (mask & GDK_GC_CAP_STYLE)
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win32_gc->cap_style = values->cap_style;
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win32_gc->values_mask |= GDK_GC_CAP_STYLE;
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if (mask & GDK_GC_JOIN_STYLE)
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win32_gc->join_style = values->join_style;
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win32_gc->values_mask |= GDK_GC_JOIN_STYLE;
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if (mask & (GDK_GC_LINE_WIDTH|GDK_GC_LINE_STYLE|GDK_GC_CAP_STYLE|GDK_GC_JOIN_STYLE))
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fixup_pen (win32_gc);
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GDK_NOTE (GC, (g_print ("%sps|=PS_STYLE_%s|PS_ENDCAP_%s|PS_JOIN_%s", s,
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_gdk_win32_psstyle_to_string (win32_gc->pen_style),
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_gdk_win32_psendcap_to_string (win32_gc->pen_style),
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_gdk_win32_psjoin_to_string (win32_gc->pen_style)),
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GDK_NOTE (GC, g_print ("} mask=(%s)", _gdk_win32_gcvalues_mask_to_string (win32_gc->values_mask)));
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_gdk_win32_gc_new (GdkDrawable *drawable,
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GdkGCValuesMask values_mask)
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GdkGCWin32 *win32_gc;
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/* NOTICE that the drawable here has to be the impl drawable,
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* not the publically-visible drawables.
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g_return_val_if_fail (GDK_IS_DRAWABLE_IMPL_WIN32 (drawable), NULL);
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gc = g_object_new (_gdk_gc_win32_get_type (), NULL);
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win32_gc = GDK_GC_WIN32 (gc);
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_gdk_gc_init (gc, drawable, values, values_mask);
463
win32_gc->hcliprgn = NULL;
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win32_gc->font = NULL;
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win32_gc->rop2 = R2_COPYPEN;
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win32_gc->subwindow_mode = GDK_CLIP_BY_CHILDREN;
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win32_gc->graphics_exposures = TRUE;
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win32_gc->pen_width = 0;
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/* Don't get confused by the PS_ENDCAP_ROUND. For narrow GDI pens
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* (width == 1), PS_GEOMETRIC|PS_ENDCAP_ROUND works like X11's
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win32_gc->pen_style = PS_GEOMETRIC|PS_ENDCAP_ROUND|PS_JOIN_MITER;
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win32_gc->line_style = GDK_LINE_SOLID;
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win32_gc->cap_style = GDK_CAP_BUTT;
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win32_gc->join_style = GDK_JOIN_MITER;
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win32_gc->pen_dashes = NULL;
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win32_gc->pen_num_dashes = 0;
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win32_gc->pen_dash_offset = 0;
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win32_gc->pen_hbrbg = NULL;
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win32_gc->values_mask = GDK_GC_FUNCTION | GDK_GC_FILL;
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GDK_NOTE (GC, g_print ("_gdk_win32_gc_new: %p: ", win32_gc));
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gdk_win32_gc_values_to_win32values (values, values_mask, win32_gc);
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GDK_NOTE (GC, g_print ("\n"));
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win32_gc->hdc = NULL;
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gdk_win32_gc_get_values (GdkGC *gc,
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GdkGCWin32 *win32_gc = GDK_GC_WIN32 (gc);
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values->foreground.pixel = _gdk_gc_get_fg_pixel (gc);
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values->background.pixel = _gdk_gc_get_bg_pixel (gc);
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values->font = win32_gc->font;
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switch (win32_gc->rop2)
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values->function = GDK_COPY; break;
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values->function = GDK_INVERT; break;
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values->function = GDK_XOR; break;
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values->function = GDK_CLEAR; break;
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values->function = GDK_AND; break;
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values->function = GDK_AND_REVERSE; break;
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values->function = GDK_AND_INVERT; break;
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values->function = GDK_NOOP; break;
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values->function = GDK_OR; break;
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values->function = GDK_EQUIV; break;
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values->function = GDK_OR_REVERSE; break;
529
values->function = GDK_COPY_INVERT; break;
531
values->function = GDK_OR_INVERT; break;
533
values->function = GDK_NAND; break;
535
values->function = GDK_NOR; break;
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values->function = GDK_SET; break;
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values->fill = _gdk_gc_get_fill (gc);
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values->tile = _gdk_gc_get_tile (gc);
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values->stipple = _gdk_gc_get_stipple (gc);
544
/* Also the X11 backend always returns a NULL clip_mask */
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values->clip_mask = NULL;
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values->subwindow_mode = win32_gc->subwindow_mode;
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values->ts_x_origin = win32_gc->parent_instance.ts_x_origin;
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values->ts_y_origin = win32_gc->parent_instance.ts_y_origin;
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values->clip_x_origin = win32_gc->parent_instance.clip_x_origin;
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values->clip_y_origin = win32_gc->parent_instance.clip_y_origin;
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values->graphics_exposures = win32_gc->graphics_exposures;
553
values->line_width = win32_gc->pen_width;
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values->line_style = win32_gc->line_style;
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values->cap_style = win32_gc->cap_style;
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values->join_style = win32_gc->join_style;
561
gdk_win32_gc_set_values (GdkGC *gc,
563
GdkGCValuesMask mask)
565
g_return_if_fail (GDK_IS_GC (gc));
567
GDK_NOTE (GC, g_print ("gdk_win32_gc_set_values: %p: ", GDK_GC_WIN32 (gc)));
568
gdk_win32_gc_values_to_win32values (values, mask, GDK_GC_WIN32 (gc));
569
GDK_NOTE (GC, g_print ("\n"));
573
gdk_win32_gc_set_dashes (GdkGC *gc,
578
GdkGCWin32 *win32_gc;
581
g_return_if_fail (GDK_IS_GC (gc));
582
g_return_if_fail (dash_list != NULL);
584
win32_gc = GDK_GC_WIN32 (gc);
586
win32_gc->pen_num_dashes = n;
587
g_free (win32_gc->pen_dashes);
588
win32_gc->pen_dashes = g_new (DWORD, n);
589
for (i = 0; i < n; i++)
590
win32_gc->pen_dashes[i] = dash_list[i];
591
win32_gc->pen_dash_offset = dash_offset;
592
fixup_pen (win32_gc);
596
_gdk_windowing_gc_set_clip_region (GdkGC *gc,
599
GdkGCWin32 *win32_gc = GDK_GC_WIN32 (gc);
601
if (win32_gc->hcliprgn)
602
DeleteObject (win32_gc->hcliprgn);
606
GDK_NOTE (GC, g_print ("gdk_gc_set_clip_region: %p: %s\n",
608
_gdk_win32_gdkregion_to_string (region)));
610
win32_gc->hcliprgn = _gdk_win32_gdkregion_to_hrgn (region, 0, 0);
611
win32_gc->values_mask |= GDK_GC_CLIP_MASK;
615
GDK_NOTE (GC, g_print ("gdk_gc_set_clip_region: NULL\n"));
617
win32_gc->hcliprgn = NULL;
618
win32_gc->values_mask &= ~GDK_GC_CLIP_MASK;
621
gc->clip_x_origin = 0;
622
gc->clip_y_origin = 0;
624
win32_gc->values_mask &= ~(GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN);
628
_gdk_windowing_gc_copy (GdkGC *dst_gc,
631
GdkGCWin32 *dst_win32_gc = GDK_GC_WIN32 (dst_gc);
632
GdkGCWin32 *src_win32_gc = GDK_GC_WIN32 (src_gc);
634
GDK_NOTE (GC, g_print ("gdk_gc_copy: %p := %p\n", dst_win32_gc, src_win32_gc));
636
if (dst_win32_gc->hcliprgn != NULL)
637
DeleteObject (dst_win32_gc->hcliprgn);
639
if (dst_win32_gc->font != NULL)
640
gdk_font_unref (dst_win32_gc->font);
642
if (dst_win32_gc->pen_dashes)
643
g_free (dst_win32_gc->pen_dashes);
645
dst_win32_gc->hcliprgn = src_win32_gc->hcliprgn;
646
if (dst_win32_gc->hcliprgn)
648
/* create a new region, to copy to */
649
dst_win32_gc->hcliprgn = CreateRectRgn (0,0,1,1);
650
/* overwrite from source */
651
CombineRgn (dst_win32_gc->hcliprgn, src_win32_gc->hcliprgn,
655
dst_win32_gc->values_mask = src_win32_gc->values_mask;
656
dst_win32_gc->font = src_win32_gc->font;
657
if (dst_win32_gc->font != NULL)
658
gdk_font_ref (dst_win32_gc->font);
660
dst_win32_gc->rop2 = src_win32_gc->rop2;
662
dst_win32_gc->subwindow_mode = src_win32_gc->subwindow_mode;
663
dst_win32_gc->graphics_exposures = src_win32_gc->graphics_exposures;
664
dst_win32_gc->pen_width = src_win32_gc->pen_width;
665
dst_win32_gc->pen_style = src_win32_gc->pen_style;
666
dst_win32_gc->line_style = src_win32_gc->line_style;
667
dst_win32_gc->cap_style = src_win32_gc->cap_style;
668
dst_win32_gc->join_style = src_win32_gc->join_style;
669
if (src_win32_gc->pen_dashes)
670
dst_win32_gc->pen_dashes = g_memdup (src_win32_gc->pen_dashes,
671
sizeof (DWORD) * src_win32_gc->pen_num_dashes);
673
dst_win32_gc->pen_dashes = NULL;
674
dst_win32_gc->pen_num_dashes = src_win32_gc->pen_num_dashes;
675
dst_win32_gc->pen_dash_offset = src_win32_gc->pen_dash_offset;
678
dst_win32_gc->hdc = NULL;
679
dst_win32_gc->saved_dc = FALSE;
680
dst_win32_gc->holdpal = NULL;
681
dst_win32_gc->pen_hbrbg = NULL;
685
gdk_gc_get_screen (GdkGC *gc)
687
g_return_val_if_fail (GDK_IS_GC_WIN32 (gc), NULL);
692
static guint bitmask[9] = { 0, 1, 3, 7, 15, 31, 63, 127, 255 };
695
_gdk_win32_colormap_color (GdkColormap *colormap,
698
const GdkVisual *visual;
699
GdkColormapPrivateWin32 *colormap_private;
702
if (colormap == NULL)
703
return DIBINDEX (pixel & 1);
705
colormap_private = GDK_WIN32_COLORMAP_DATA (colormap);
707
g_assert (colormap_private != NULL);
709
visual = colormap->visual;
710
switch (visual->type)
712
case GDK_VISUAL_GRAYSCALE:
713
case GDK_VISUAL_PSEUDO_COLOR:
714
case GDK_VISUAL_STATIC_COLOR:
715
return PALETTEINDEX (pixel);
717
case GDK_VISUAL_TRUE_COLOR:
718
r = (pixel & visual->red_mask) >> visual->red_shift;
719
r = (r * 255) / bitmask[visual->red_prec];
720
g = (pixel & visual->green_mask) >> visual->green_shift;
721
g = (g * 255) / bitmask[visual->green_prec];
722
b = (pixel & visual->blue_mask) >> visual->blue_shift;
723
b = (b * 255) / bitmask[visual->blue_prec];
724
return RGB (r, g, b);
727
g_assert_not_reached ();
734
GdkColormap *colormap)
736
GdkGCWin32 *win32_gc = (GdkGCWin32 *) gc;
737
GdkColormapPrivateWin32 *colormap_private;
742
(colormap->visual->type == GDK_VISUAL_PSEUDO_COLOR ||
743
colormap->visual->type == GDK_VISUAL_STATIC_COLOR))
745
colormap_private = GDK_WIN32_COLORMAP_DATA (colormap);
747
g_assert (colormap_private != NULL);
749
if (!(win32_gc->holdpal = SelectPalette (win32_gc->hdc, colormap_private->hpal, FALSE)))
750
WIN32_GDI_FAILED ("SelectPalette"), ok = FALSE;
751
else if ((k = RealizePalette (win32_gc->hdc)) == GDI_ERROR)
752
WIN32_GDI_FAILED ("RealizePalette"), ok = FALSE;
754
GDK_NOTE (COLORMAP, g_print ("predraw: realized %p: %d colors\n",
755
colormap_private->hpal, k));
761
static GdkDrawableImplWin32 *
762
get_impl_drawable (GdkDrawable *drawable)
764
if (GDK_IS_DRAWABLE_IMPL_WIN32 (drawable))
765
return GDK_DRAWABLE_IMPL_WIN32(drawable);
766
else if (GDK_IS_WINDOW (drawable))
767
return GDK_DRAWABLE_IMPL_WIN32 ((GDK_WINDOW_OBJECT (drawable))->impl);
768
else if (GDK_IS_PIXMAP (drawable))
769
return GDK_DRAWABLE_IMPL_WIN32 ((GDK_PIXMAP_OBJECT (drawable))->impl);
771
g_assert_not_reached ();
778
* @drawable: destination #GdkDrawable
779
* @gc: #GdkGC to use for drawing on @drawable
780
* @usage: mask indicating what properties needs to be set up
782
* Allocates a Windows device context handle (HDC) for drawing into
783
* @drawable, and sets it up appropriately according to @usage.
785
* Each #GdkGC can at one time have only one HDC associated with it.
787
* The following flags in @mask are handled:
789
* If %GDK_GC_FOREGROUND is set in @mask, a solid brush of the
790
* foreground color in @gc is selected into the HDC. The text color of
791
* the HDC is also set. If the @drawable has a palette (256-color
792
* mode), the palette is selected and realized.
794
* If any of the line attribute flags (%GDK_GC_LINE_WIDTH,
795
* %GDK_GC_LINE_STYLE, %GDK_GC_CAP_STYLE and %GDK_GC_JOIN_STYLE) is
796
* set in @mask, a solid pen of the foreground color and appropriate
797
* width and stule is created and selected into the HDC. Note that the
798
* dash properties are not completely implemented.
800
* If the %GDK_GC_FONT flag is set, the background mix mode is set to
801
* %TRANSPARENT. and the text alignment is set to
802
* %TA_BASELINE|%TA_LEFT. Note that no font gets selected into the HDC
805
* Some things are done regardless of @mask: If the function in @gc is
806
* any other than %GDK_COPY, the raster operation of the HDC is
807
* set. If @gc has a clip mask, the clip region of the HDC is set.
809
* Note that the fill style, tile, stipple, and tile and stipple
810
* origins in the @gc are ignored by this function. (In general, tiles
811
* and stipples can't be implemented directly on Win32; you need to do
812
* multiple pass drawing and blitting to implement tiles or
813
* stipples. GDK does just that when you call the GDK drawing
814
* functions with a GC that asks for tiles or stipples.)
816
* When the HDC is no longer used, it should be released by calling
817
* <function>gdk_win32_hdc_release()</function> with the same
820
* If you modify the HDC by calling <function>SelectObject</function>
821
* you should undo those modifications before calling
822
* <function>gdk_win32_hdc_release()</function>.
824
* Return value: The HDC.
827
gdk_win32_hdc_get (GdkDrawable *drawable,
829
GdkGCValuesMask usage)
831
GdkGCWin32 *win32_gc = (GdkGCWin32 *) gc;
832
GdkDrawableImplWin32 *impl = NULL;
834
COLORREF fg = RGB (0, 0, 0), bg = RGB (255, 255, 255);
838
g_assert (win32_gc->hdc == NULL);
840
impl = get_impl_drawable (drawable);
842
win32_gc->hdc = _gdk_win32_drawable_acquire_dc (GDK_DRAWABLE (impl));
843
ok = win32_gc->hdc != NULL;
845
if (ok && (win32_gc->saved_dc = SaveDC (win32_gc->hdc)) == 0)
846
WIN32_GDI_FAILED ("SaveDC"), ok = FALSE;
848
if (ok && (usage & (GDK_GC_FOREGROUND | GDK_GC_BACKGROUND)))
849
ok = predraw (gc, impl->colormap);
851
if (ok && (usage & GDK_GC_FOREGROUND))
853
fg = _gdk_win32_colormap_color (impl->colormap, _gdk_gc_get_fg_pixel (gc));
854
if ((hbr = CreateSolidBrush (fg)) == NULL)
855
WIN32_GDI_FAILED ("CreateSolidBrush"), ok = FALSE;
857
if (ok && SelectObject (win32_gc->hdc, hbr) == NULL)
858
WIN32_GDI_FAILED ("SelectObject"), ok = FALSE;
860
if (ok && SetTextColor (win32_gc->hdc, fg) == CLR_INVALID)
861
WIN32_GDI_FAILED ("SetTextColor"), ok = FALSE;
864
if (ok && (usage & LINE_ATTRIBUTES))
866
/* For drawing GDK_LINE_DOUBLE_DASH */
867
if ((usage & GDK_GC_BACKGROUND) && win32_gc->line_style == GDK_LINE_DOUBLE_DASH)
869
bg = _gdk_win32_colormap_color (impl->colormap, _gdk_gc_get_bg_pixel (gc));
870
if ((win32_gc->pen_hbrbg = CreateSolidBrush (bg)) == NULL)
871
WIN32_GDI_FAILED ("CreateSolidBrush"), ok = FALSE;
877
DWORD style_count = 0;
878
const DWORD *style = NULL;
880
/* Create and select pen */
881
logbrush.lbStyle = BS_SOLID;
882
logbrush.lbColor = fg;
883
logbrush.lbHatch = 0;
885
if ((win32_gc->pen_style & PS_STYLE_MASK) == PS_USERSTYLE)
887
style_count = win32_gc->pen_num_dashes;
888
style = win32_gc->pen_dashes;
891
if ((hpen = ExtCreatePen (win32_gc->pen_style,
892
MAX (win32_gc->pen_width, 1),
894
style_count, style)) == NULL)
895
WIN32_GDI_FAILED ("ExtCreatePen"), ok = FALSE;
897
if (ok && SelectObject (win32_gc->hdc, hpen) == NULL)
898
WIN32_GDI_FAILED ("SelectObject"), ok = FALSE;
902
if (ok && (usage & GDK_GC_FONT))
904
if (SetBkMode (win32_gc->hdc, TRANSPARENT) == 0)
905
WIN32_GDI_FAILED ("SetBkMode"), ok = FALSE;
907
if (ok && SetTextAlign (win32_gc->hdc, TA_BASELINE|TA_LEFT|TA_NOUPDATECP) == GDI_ERROR)
908
WIN32_GDI_FAILED ("SetTextAlign"), ok = FALSE;
911
if (ok && win32_gc->rop2 != R2_COPYPEN)
912
if (SetROP2 (win32_gc->hdc, win32_gc->rop2) == 0)
913
WIN32_GDI_FAILED ("SetROP2"), ok = FALSE;
916
(win32_gc->values_mask & GDK_GC_CLIP_MASK) &&
917
win32_gc->hcliprgn != NULL)
919
if (SelectClipRgn (win32_gc->hdc, win32_gc->hcliprgn) == ERROR)
920
WIN32_API_FAILED ("SelectClipRgn"), ok = FALSE;
922
if (ok && win32_gc->values_mask & (GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN) &&
923
OffsetClipRgn (win32_gc->hdc,
924
win32_gc->values_mask & GDK_GC_CLIP_X_ORIGIN ? gc->clip_x_origin : 0,
925
win32_gc->values_mask & GDK_GC_CLIP_Y_ORIGIN ? gc->clip_y_origin : 0) == ERROR)
926
WIN32_API_FAILED ("OffsetClipRgn"), ok = FALSE;
929
SelectClipRgn (win32_gc->hdc, NULL);
931
GDK_NOTE (GC, (g_print ("gdk_win32_hdc_get: %p (%s): ",
932
win32_gc, _gdk_win32_gcvalues_mask_to_string (usage)),
933
_gdk_win32_print_dc (win32_gc->hdc)));
935
return win32_gc->hdc;
939
* gdk_win32_hdc_release:
940
* @drawable: destination #GdkDrawable
941
* @gc: #GdkGC to use for drawing on @drawable
942
* @usage: mask indicating what properties were set up
944
* This function deallocates the Windows device context allocated by
945
* <funcion>gdk_win32_hdc_get()</function>. It should be called with
946
* the same parameters.
949
gdk_win32_hdc_release (GdkDrawable *drawable,
951
GdkGCValuesMask usage)
953
GdkGCWin32 *win32_gc = (GdkGCWin32 *) gc;
954
GdkDrawableImplWin32 *impl = NULL;
958
GDK_NOTE (GC, g_print ("gdk_win32_hdc_release: %p: %p (%s)\n",
959
win32_gc, win32_gc->hdc,
960
_gdk_win32_gcvalues_mask_to_string (usage)));
962
impl = get_impl_drawable (drawable);
964
if (win32_gc->holdpal != NULL)
968
if (!SelectPalette (win32_gc->hdc, win32_gc->holdpal, FALSE))
969
WIN32_GDI_FAILED ("SelectPalette");
970
else if ((k = RealizePalette (win32_gc->hdc)) == GDI_ERROR)
971
WIN32_GDI_FAILED ("RealizePalette");
973
GDK_NOTE (COLORMAP, g_print ("gdk_win32_hdc_release: realized %p: %d colors\n",
974
win32_gc->holdpal, k));
975
win32_gc->holdpal = NULL;
978
if (usage & LINE_ATTRIBUTES)
979
if ((hpen = GetCurrentObject (win32_gc->hdc, OBJ_PEN)) == NULL)
980
WIN32_GDI_FAILED ("GetCurrentObject");
982
if (usage & GDK_GC_FOREGROUND)
983
if ((hbr = GetCurrentObject (win32_gc->hdc, OBJ_BRUSH)) == NULL)
984
WIN32_GDI_FAILED ("GetCurrentObject");
986
GDI_CALL (RestoreDC, (win32_gc->hdc, win32_gc->saved_dc));
988
_gdk_win32_drawable_release_dc (GDK_DRAWABLE (impl));
991
GDI_CALL (DeleteObject, (hpen));
994
GDI_CALL (DeleteObject, (hbr));
996
if (win32_gc->pen_hbrbg != NULL)
997
GDI_CALL (DeleteObject, (win32_gc->pen_hbrbg));
999
win32_gc->hdc = NULL;
1002
/* This function originally from Jean-Edouard Lachand-Robert, and
1003
* available at www.codeguru.com. Simplified for our needs, not sure
1004
* how much of the original code left any longer. Now handles just
1005
* one-bit deep bitmaps (in Window parlance, ie those that GDK calls
1006
* bitmaps (and not pixmaps), with zero pixels being transparent.
1009
/* _gdk_win32_bitmap_to_hrgn : Create a region from the
1010
* "non-transparent" pixels of a bitmap.
1014
_gdk_win32_bitmap_to_hrgn (GdkPixmap *pixmap)
1021
gint width, height, bpl;
1025
g_assert (GDK_PIXMAP_OBJECT(pixmap)->depth == 1);
1027
bits = GDK_PIXMAP_IMPL_WIN32 (GDK_PIXMAP_OBJECT (pixmap)->impl)->bits;
1028
width = GDK_PIXMAP_IMPL_WIN32 (GDK_PIXMAP_OBJECT (pixmap)->impl)->width;
1029
height = GDK_PIXMAP_IMPL_WIN32 (GDK_PIXMAP_OBJECT (pixmap)->impl)->height;
1030
bpl = ((width - 1)/32 + 1)*4;
1032
/* For better performances, we will use the ExtCreateRegion()
1033
* function to create the region. This function take a RGNDATA
1034
* structure on entry. We will add rectangles by amount of
1035
* ALLOC_UNIT number in this structure.
1037
#define ALLOC_UNIT 100
1038
maxRects = ALLOC_UNIT;
1040
pData = g_malloc (sizeof (RGNDATAHEADER) + (sizeof (RECT) * maxRects));
1041
pData->rdh.dwSize = sizeof (RGNDATAHEADER);
1042
pData->rdh.iType = RDH_RECTANGLES;
1043
pData->rdh.nCount = pData->rdh.nRgnSize = 0;
1044
SetRect (&pData->rdh.rcBound, MAXLONG, MAXLONG, 0, 0);
1046
for (y = 0; y < height; y++)
1048
/* Scan each bitmap row from left to right*/
1049
p = (guchar *) bits + y * bpl;
1050
for (x = 0; x < width; x++)
1052
/* Search for a continuous range of "non transparent pixels"*/
1056
if ((((p[x/8])>>(7-(x%8)))&1) == 0)
1057
/* This pixel is "transparent"*/
1065
/* Add the pixels (x0, y) to (x, y+1) as a new rectangle
1068
if (pData->rdh.nCount >= maxRects)
1070
maxRects += ALLOC_UNIT;
1071
pData = g_realloc (pData, sizeof(RGNDATAHEADER)
1072
+ (sizeof(RECT) * maxRects));
1074
pr = (RECT *) &pData->Buffer;
1075
SetRect (&pr[pData->rdh.nCount], x0, y, x, y+1);
1076
if (x0 < pData->rdh.rcBound.left)
1077
pData->rdh.rcBound.left = x0;
1078
if (y < pData->rdh.rcBound.top)
1079
pData->rdh.rcBound.top = y;
1080
if (x > pData->rdh.rcBound.right)
1081
pData->rdh.rcBound.right = x;
1082
if (y+1 > pData->rdh.rcBound.bottom)
1083
pData->rdh.rcBound.bottom = y+1;
1084
pData->rdh.nCount++;
1086
/* On Windows98, ExtCreateRegion() may fail if the
1087
* number of rectangles is too large (ie: >
1088
* 4000). Therefore, we have to create the region by
1091
if (pData->rdh.nCount == 2000)
1093
HRGN h = ExtCreateRegion (NULL, sizeof(RGNDATAHEADER) + (sizeof(RECT) * maxRects), pData);
1096
CombineRgn(hRgn, hRgn, h, RGN_OR);
1101
pData->rdh.nCount = 0;
1102
SetRect (&pData->rdh.rcBound, MAXLONG, MAXLONG, 0, 0);
1108
/* Create or extend the region with the remaining rectangles*/
1109
h = ExtCreateRegion (NULL, sizeof (RGNDATAHEADER)
1110
+ (sizeof (RECT) * maxRects), pData);
1113
CombineRgn (hRgn, hRgn, h, RGN_OR);
1126
_gdk_win32_gdkregion_to_hrgn (GdkRegion *region,
1133
GdkRegionBox *boxes = region->rects;
1135
sizeof (RGNDATAHEADER) + (sizeof (RECT) * region->numRects);
1138
rgndata = g_malloc (nbytes);
1139
rgndata->rdh.dwSize = sizeof (RGNDATAHEADER);
1140
rgndata->rdh.iType = RDH_RECTANGLES;
1141
rgndata->rdh.nCount = rgndata->rdh.nRgnSize = 0;
1142
SetRect (&rgndata->rdh.rcBound,
1143
G_MAXLONG, G_MAXLONG, G_MINLONG, G_MINLONG);
1145
for (i = 0; i < region->numRects; i++)
1147
rect = ((RECT *) rgndata->Buffer) + rgndata->rdh.nCount++;
1149
rect->left = boxes[i].x1 + x_origin;
1150
rect->right = boxes[i].x2 + x_origin;
1151
rect->top = boxes[i].y1 + y_origin;
1152
rect->bottom = boxes[i].y2 + y_origin;
1154
if (rect->left < rgndata->rdh.rcBound.left)
1155
rgndata->rdh.rcBound.left = rect->left;
1156
if (rect->right > rgndata->rdh.rcBound.right)
1157
rgndata->rdh.rcBound.right = rect->right;
1158
if (rect->top < rgndata->rdh.rcBound.top)
1159
rgndata->rdh.rcBound.top = rect->top;
1160
if (rect->bottom > rgndata->rdh.rcBound.bottom)
1161
rgndata->rdh.rcBound.bottom = rect->bottom;
1163
if ((hrgn = ExtCreateRegion (NULL, nbytes, rgndata)) == NULL)
1164
WIN32_API_FAILED ("ExtCreateRegion");