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ec1e8f1f5d
2000-03-07 Tor Lillqvist <tml@iki.fi> * gdk/win32/gdkmain-win32.c: Internal GDK error reporting changes: (gdk_win32_gdi_failed) New function for reporting errors from GDI, for which it is no use to call GetLastError on Win9x. (gdk_other_api_failed) New function, for general error reporting without calling GetLastError. (gdk_win32_api_failed) OTOH, this function always calls GetLastError. (gdk_win32_last_error_string) Remove this function, GLib has the equivalent now. * gdk/win32/gdkprivate-win32.h: Declare the above, and macros to call them with function name, file name and line number in the arguments. * gdk/win32/*.c: Use the new macros for reporting errors from GDI functions. * gtk/gtk.def: Add some missing entry points. * gtk/gtkcompat.h.in: Define gtk_paned_gutter_size and gtk_paned_set_gutter_size, which don't exist any longer, as void. Fixes by Hans Breuer: * gdk/makefile.msc: Update for debugging. * gdk/win32/gdkgc-win32.c (gdk_win32_gc_set_dashes): Fake implementation, just use the PS_DASH, PS_DOT, PS_DASHDOT or PS_DASHDOTDOT or PS_DASH styles depending on the number of entries in the dash_list. * gdk/win32/gdkwin32.h (GDK_FONT_XFONT): New macro, similar as in the x11 backend. * gdk/win32/gdkprivate-win32.h (IS_WIN_NT): New macro. * gtk/testgtk.c: Include config.h, guard inclusion of unistd.h.
1285 lines
35 KiB
C
1285 lines
35 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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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 Library 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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*
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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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library 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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*/
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/*
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* Modified by the GTK+ Team and others 1997-1999. 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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*/
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#include "config.h"
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#include <string.h>
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#include "gdkgc.h"
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#include "gdkfont.h"
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#include "gdkpixmap.h"
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#include "gdkprivate.h"
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#include "gdkwin32.h"
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static void gdk_win32_gc_destroy (GdkGC *gc);
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static void gdk_win32_gc_get_values (GdkGC *gc,
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GdkGCValues *values);
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static void gdk_win32_gc_set_values (GdkGC *gc,
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GdkGCValues *values,
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GdkGCValuesMask values_mask);
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static void gdk_win32_gc_set_dashes (GdkGC *gc,
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gint dash_offset,
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gchar dash_list[],
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gint n);
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static GdkGCClass gdk_win32_gc_class = {
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gdk_win32_gc_destroy,
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gdk_win32_gc_get_values,
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gdk_win32_gc_set_values,
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gdk_win32_gc_set_dashes
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};
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static void
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gdk_win32_gc_values_to_win32values (GdkGCValues *values,
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GdkGCValuesMask mask,
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GdkGCWin32Data *data)
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{
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char *s = "";
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gint sw, sh;
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GDK_NOTE (MISC, g_print ("{"));
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if (mask & GDK_GC_FOREGROUND)
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{
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data->foreground = values->foreground.pixel;
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data->values_mask |= GDK_GC_FOREGROUND;
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GDK_NOTE (MISC, (g_print ("fg=%.06x", data->foreground),
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s = ","));
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}
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if (mask & GDK_GC_BACKGROUND)
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{
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data->background = values->background.pixel;
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data->values_mask |= GDK_GC_BACKGROUND;
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GDK_NOTE (MISC, (g_print ("%sbg=%.06x", s, data->background),
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s = ","));
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}
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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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{
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if (data->font != NULL)
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gdk_font_unref (data->font);
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data->font = values->font;
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if (data->font != NULL)
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{
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gchar *xlfd;
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gdk_font_ref (data->font);
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data->values_mask |= GDK_GC_FONT;
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GDK_NOTE (MISC, (xlfd = gdk_font_full_name_get (data->font),
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g_print ("%sfont=%s", s, xlfd),
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s = ",",
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gdk_font_full_name_free (xlfd)));
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}
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else
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{
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data->values_mask &= ~GDK_GC_FONT;
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GDK_NOTE (MISC, (g_print ("%sfont=NULL"),
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s = ","));
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}
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}
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if (mask & GDK_GC_FUNCTION)
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{
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GDK_NOTE (MISC, (g_print ("%srop2=", s),
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s = ","));
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switch (values->function)
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{
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case GDK_COPY:
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data->rop2 = R2_COPYPEN;
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GDK_NOTE (MISC, g_print ("COPYPEN"));
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break;
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case GDK_INVERT:
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data->rop2 = R2_NOT;
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GDK_NOTE (MISC, g_print ("NOT"));
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break;
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case GDK_XOR:
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data->rop2 = R2_XORPEN;
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GDK_NOTE (MISC, g_print ("XORPEN"));
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break;
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case GDK_CLEAR:
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data->rop2 = R2_BLACK;
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GDK_NOTE (MISC, g_print ("BLACK"));
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break;
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case GDK_AND:
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data->rop2 = R2_MASKPEN;
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GDK_NOTE (MISC, g_print ("MASKPEN"));
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break;
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case GDK_AND_REVERSE:
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data->rop2 = R2_MASKPENNOT;
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GDK_NOTE (MISC, g_print ("MASKPENNOT"));
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break;
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case GDK_AND_INVERT:
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data->rop2 = R2_MASKNOTPEN;
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GDK_NOTE (MISC, g_print ("MASKNOTPEN"));
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break;
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case GDK_NOOP:
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data->rop2 = R2_NOP;
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GDK_NOTE (MISC, g_print ("NOP"));
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break;
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case GDK_OR:
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data->rop2 = R2_MERGEPEN;
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GDK_NOTE (MISC, g_print ("MERGEPEN"));
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break;
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case GDK_EQUIV:
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data->rop2 = R2_NOTXORPEN;
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GDK_NOTE (MISC, g_print ("NOTXORPEN"));
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break;
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case GDK_OR_REVERSE:
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data->rop2 = R2_MERGEPENNOT;
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GDK_NOTE (MISC, g_print ("MERGEPENNOT"));
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break;
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case GDK_COPY_INVERT:
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data->rop2 = R2_NOTCOPYPEN;
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GDK_NOTE (MISC, g_print ("NOTCOPYPEN"));
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break;
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case GDK_OR_INVERT:
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data->rop2 = R2_MERGENOTPEN;
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GDK_NOTE (MISC, g_print ("MERGENOTPEN"));
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break;
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case GDK_NAND:
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data->rop2 = R2_NOTMASKPEN;
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GDK_NOTE (MISC, g_print ("NOTMASKPEN"));
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break;
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case GDK_SET:
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data->rop2 = R2_WHITE;
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GDK_NOTE (MISC, g_print ("WHITE"));
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break;
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}
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data->values_mask |= GDK_GC_FUNCTION;
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}
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if (mask & GDK_GC_FILL)
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{
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data->fill_style = values->fill;
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data->values_mask |= GDK_GC_FILL;
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GDK_NOTE (MISC, (g_print ("%sfill=%d", s, data->fill_style),
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s = ","));
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}
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if (mask & GDK_GC_TILE)
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{
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if (data->tile != NULL)
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gdk_drawable_unref (data->tile);
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data->tile = values->tile;
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if (data->tile != NULL)
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{
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gdk_drawable_ref (data->tile);
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data->values_mask |= GDK_GC_TILE;
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GDK_NOTE (MISC, (g_print ("%stile=%#x", s,
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GDK_DRAWABLE_XID (data->tile)),
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s = ","));
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}
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else
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{
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data->values_mask &= ~GDK_GC_TILE;
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GDK_NOTE (MISC, (g_print ("%stile=NULL", s),
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s = ","));
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}
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}
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if (mask & GDK_GC_STIPPLE)
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{
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if (data->stipple != NULL)
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gdk_drawable_unref (data->stipple);
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data->stipple = values->stipple;
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if (data->stipple != NULL)
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{
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gdk_drawable_get_size (data->stipple, &sw, &sh);
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if (sw != 8 || sh != 8)
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{
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/* It seems that it *must* be 8x8, at least on my machine.
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* Thus, tile an 8x8 bitmap with the stipple in case it is
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* smaller, or simply use just the top left 8x8 in case it is
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* larger.
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*/
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gchar dummy[8];
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GdkPixmap *bm = gdk_bitmap_create_from_data (NULL, dummy, 8, 8);
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GdkGC *gc = gdk_gc_new (bm);
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gint i, j;
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i = 0;
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while (i < 8)
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{
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j = 0;
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while (j < 8)
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{
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gdk_draw_drawable (bm, gc, data->stipple, 0, 0, i, j, sw, sh);
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j += sh;
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}
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i += sw;
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}
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data->stipple = bm;
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gdk_gc_unref (gc);
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}
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else
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gdk_drawable_ref (data->stipple);
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data->values_mask |= GDK_GC_STIPPLE;
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GDK_NOTE (MISC, (g_print ("%sstipple=%#x", s,
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GDK_DRAWABLE_XID (data->stipple)),
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s = ","));
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}
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else
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{
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data->values_mask &= ~GDK_GC_STIPPLE;
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GDK_NOTE (MISC, (g_print ("%sstipple=NULL", s),
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s = ","));
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}
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}
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if (mask & GDK_GC_CLIP_MASK)
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{
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if (data->clip_region != NULL)
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if (!DeleteObject (data->clip_region))
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WIN32_GDI_FAILED ("DeleteObject");
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if (values->clip_mask != NULL)
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{
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data->clip_region =
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BitmapToRegion ((HBITMAP) GDK_DRAWABLE_XID (values->clip_mask));
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data->values_mask |= GDK_GC_CLIP_MASK;
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}
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else
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{
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data->clip_region = NULL;
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data->values_mask &= ~GDK_GC_CLIP_MASK;
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}
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GDK_NOTE (MISC, (g_print ("%sclip=%#x", s, data->clip_region),
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s = ","));
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}
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if (mask & GDK_GC_SUBWINDOW)
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{
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data->subwindow_mode = values->subwindow_mode;
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data->values_mask |= GDK_GC_SUBWINDOW;
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GDK_NOTE (MISC, (g_print ("%ssubw=%d", s, data->subwindow_mode),
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s = ","));
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}
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if (mask & GDK_GC_TS_X_ORIGIN)
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{
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data->ts_x_origin = values->ts_x_origin;
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data->values_mask |= GDK_GC_TS_X_ORIGIN;
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GDK_NOTE (MISC, (g_print ("%sts_x=%d", s, data->ts_x_origin),
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s = ","));
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}
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if (mask & GDK_GC_TS_Y_ORIGIN)
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{
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data->ts_y_origin = values->ts_y_origin;
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data->values_mask |= GDK_GC_TS_Y_ORIGIN;
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GDK_NOTE (MISC, (g_print ("%sts_y=%d", s, data->ts_y_origin),
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s = ","));
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}
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if (mask & GDK_GC_CLIP_X_ORIGIN)
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{
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data->clip_x_origin = values->clip_x_origin;
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data->values_mask |= GDK_GC_CLIP_X_ORIGIN;
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GDK_NOTE (MISC, (g_print ("%sclip_x=%d", s, data->clip_x_origin),
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s = ","));
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}
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if (mask & GDK_GC_CLIP_Y_ORIGIN)
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{
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data->clip_y_origin = values->clip_y_origin;
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data->values_mask |= GDK_GC_CLIP_Y_ORIGIN;
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GDK_NOTE (MISC, (g_print ("%sclip_y=%d", s, data->clip_y_origin),
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s = ","));
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}
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if (mask & GDK_GC_EXPOSURES)
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{
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data->graphics_exposures = values->graphics_exposures;
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data->values_mask |= GDK_GC_EXPOSURES;
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GDK_NOTE (MISC, (g_print ("%sexp=%d", s, data->graphics_exposures),
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s = ","));
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}
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if (mask & GDK_GC_LINE_WIDTH)
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{
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data->pen_width = values->line_width;
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data->values_mask |= GDK_GC_LINE_WIDTH;
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GDK_NOTE (MISC, (g_print ("%spw=%d", s, data->pen_width),
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s = ","));
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}
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if (mask & GDK_GC_LINE_STYLE)
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{
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data->pen_style &= ~(PS_STYLE_MASK);
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GDK_NOTE (MISC, (g_print ("%sps|=", s),
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s = ","));
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switch (values->line_style)
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{
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case GDK_LINE_SOLID:
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GDK_NOTE (MISC, g_print ("LINE_SOLID"));
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data->pen_style |= PS_SOLID;
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break;
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case GDK_LINE_ON_OFF_DASH:
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case GDK_LINE_DOUBLE_DASH: /* ??? */
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GDK_NOTE (MISC, g_print ("DASH"));
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data->pen_style |= PS_DASH;
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break;
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}
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data->values_mask |= GDK_GC_LINE_STYLE;
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}
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if (mask & GDK_GC_CAP_STYLE)
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{
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data->pen_style &= ~(PS_ENDCAP_MASK);
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GDK_NOTE (MISC, (g_print ("%sps|=", s),
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s = ","));
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switch (values->cap_style)
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{
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case GDK_CAP_NOT_LAST: /* ??? */
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case GDK_CAP_BUTT:
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GDK_NOTE (MISC, g_print ("ENDCAP_FLAT"));
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data->pen_style |= PS_ENDCAP_FLAT;
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break;
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case GDK_CAP_ROUND:
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GDK_NOTE (MISC, g_print ("ENDCAP_ROUND"));
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data->pen_style |= PS_ENDCAP_ROUND;
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break;
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case GDK_CAP_PROJECTING:
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GDK_NOTE (MISC, g_print ("ENDCAP_SQUARE"));
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data->pen_style |= PS_ENDCAP_SQUARE;
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break;
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}
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data->values_mask |= GDK_GC_CAP_STYLE;
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}
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if (mask & GDK_GC_JOIN_STYLE)
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{
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data->pen_style &= ~(PS_JOIN_MASK);
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GDK_NOTE (MISC, (g_print ("%sps|=", s),
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s = ","));
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switch (values->join_style)
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{
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case GDK_JOIN_MITER:
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GDK_NOTE (MISC, g_print ("JOIN_MITER"));
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data->pen_style |= PS_JOIN_MITER;
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break;
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case GDK_JOIN_ROUND:
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GDK_NOTE (MISC, g_print ("JOIN_ROUND"));
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data->pen_style |= PS_JOIN_ROUND;
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break;
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case GDK_JOIN_BEVEL:
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GDK_NOTE (MISC, g_print ("JOIN_BEVEL"));
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data->pen_style |= PS_JOIN_BEVEL;
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break;
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}
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data->values_mask |= GDK_GC_JOIN_STYLE;
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}
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GDK_NOTE (MISC, g_print ("}\n"));
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}
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GdkGC*
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_gdk_win32_gc_new (GdkDrawable *drawable,
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GdkGCValues *values,
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GdkGCValuesMask mask)
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{
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GdkGC *gc;
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|
GdkGCPrivate *private;
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GdkGCWin32Data *data;
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|
static GdkColor black;
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|
static GdkColor white;
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|
static gboolean beenhere = FALSE;
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if (!beenhere)
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|
{
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gdk_color_black (gdk_colormap_get_system (), &black);
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gdk_color_white (gdk_colormap_get_system (), &white);
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|
beenhere = TRUE;
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|
}
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|
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gc = gdk_gc_alloc ();
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|
private = (GdkGCPrivate *)gc;
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|
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private->klass = &gdk_win32_gc_class;
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|
private->klass_data = data = g_new (GdkGCWin32Data, 1);
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|
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data->foreground = black.pixel;
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|
data->background = white.pixel;
|
|
data->font = NULL;
|
|
data->rop2 = R2_COPYPEN;
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data->fill_style = GDK_SOLID;
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|
data->tile = NULL;
|
|
data->stipple = NULL;
|
|
data->clip_region = NULL;
|
|
data->ts_x_origin = data->ts_y_origin =
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|
data->clip_x_origin = data->clip_y_origin = 0;
|
|
data->pen_style = PS_GEOMETRIC;
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data->pen_width = 1;
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|
|
data->values_mask = GDK_GC_FUNCTION | GDK_GC_FILL;
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|
|
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GDK_NOTE (MISC, g_print ("_gdk_win32_gc_new: "));
|
|
gdk_win32_gc_values_to_win32values (values, mask, data);
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|
|
|
data->hwnd = NULL;
|
|
data->xgc = NULL;
|
|
|
|
GDK_NOTE (MISC, g_print (" = %p\n", gc));
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|
|
|
return gc;
|
|
}
|
|
|
|
static void
|
|
gdk_win32_gc_destroy (GdkGC *gc)
|
|
{
|
|
GdkGCWin32Data *data = GDK_GC_WIN32DATA (gc);
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|
|
|
if (data->values_mask & GDK_GC_FONT)
|
|
gdk_font_unref (data->font);
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|
|
if (data->values_mask & GDK_GC_TILE)
|
|
gdk_drawable_unref (data->tile);
|
|
|
|
if (data->values_mask & GDK_GC_STIPPLE)
|
|
gdk_drawable_unref (data->stipple);
|
|
|
|
if (data->values_mask & GDK_GC_CLIP_MASK)
|
|
DeleteObject (data->clip_region);
|
|
|
|
g_free (GDK_GC_WIN32DATA (gc));
|
|
}
|
|
|
|
static void
|
|
gdk_win32_gc_get_values (GdkGC *gc,
|
|
GdkGCValues *values)
|
|
{
|
|
GdkGCWin32Data *data = GDK_GC_WIN32DATA (gc);
|
|
|
|
values->foreground.pixel = data->foreground;
|
|
values->background.pixel = data->background;
|
|
values->font = data->font;
|
|
|
|
switch (data->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 = data->fill_style;
|
|
|
|
values->tile = data->tile;
|
|
values->stipple = data->stipple;
|
|
|
|
if (data->clip_region != NULL)
|
|
{
|
|
RECT rect;
|
|
HBRUSH hbr;
|
|
HDC hdc;
|
|
HGDIOBJ oldbitmap;
|
|
GdkPixmap *pixmap;
|
|
|
|
GetRgnBox (data->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)
|
|
WIN32_GDI_FAILED ("CreateCompatibleDC");
|
|
if ((oldbitmap =
|
|
SelectObject (hdc, GDK_DRAWABLE_XID (pixmap))) == NULL)
|
|
WIN32_GDI_FAILED ("SelectObject");
|
|
hbr = GetStockObject (BLACK_BRUSH);
|
|
if (!FillRect (hdc, &rect, hbr))
|
|
WIN32_GDI_FAILED ("FillRect");
|
|
hbr = GetStockObject (WHITE_BRUSH);
|
|
if (!FillRgn (hdc, data->clip_region, hbr))
|
|
WIN32_GDI_FAILED ("FillRgn");
|
|
if (SelectObject (hdc, oldbitmap) == NULL)
|
|
WIN32_GDI_FAILED ("SelectObject");
|
|
DeleteDC (hdc);
|
|
values->clip_mask = pixmap;
|
|
}
|
|
else
|
|
values->clip_mask = NULL;
|
|
values->subwindow_mode = data->subwindow_mode;
|
|
values->ts_x_origin = data->ts_x_origin;
|
|
values->ts_y_origin = data->ts_y_origin;
|
|
values->clip_x_origin = data->clip_x_origin;
|
|
values->clip_y_origin = data->clip_y_origin;
|
|
values->graphics_exposures = data->graphics_exposures;
|
|
values->line_width = data->pen_width;
|
|
|
|
if (data->pen_style & PS_SOLID)
|
|
values->line_style = GDK_LINE_SOLID;
|
|
else if (data->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 (data->pen_style & PS_ENDCAP_FLAT)
|
|
values->cap_style = GDK_CAP_BUTT;
|
|
else if (data->pen_style & PS_ENDCAP_SQUARE)
|
|
values->cap_style = GDK_CAP_PROJECTING;
|
|
else
|
|
values->cap_style = GDK_CAP_ROUND;
|
|
|
|
/* PS_JOIN_ROUND is zero */
|
|
if (data->pen_style & PS_JOIN_MITER)
|
|
values->join_style = GDK_JOIN_MITER;
|
|
else if (data->pen_style & PS_JOIN_BEVEL)
|
|
values->join_style = GDK_JOIN_BEVEL;
|
|
else
|
|
values->join_style = GDK_JOIN_ROUND;
|
|
}
|
|
|
|
static void
|
|
gdk_win32_gc_set_values (GdkGC *gc,
|
|
GdkGCValues *values,
|
|
GdkGCValuesMask mask)
|
|
{
|
|
GdkGCWin32Data *data = GDK_GC_WIN32DATA (gc);
|
|
|
|
GDK_NOTE (MISC, g_print ("gdk_win32_gc_set_values: "));
|
|
|
|
gdk_win32_gc_values_to_win32values (values, mask, data);
|
|
}
|
|
|
|
static void
|
|
gdk_win32_gc_set_dashes (GdkGC *gc,
|
|
gint dash_offset,
|
|
gchar dash_list[],
|
|
gint n)
|
|
{
|
|
GdkGCWin32Data *data = GDK_GC_WIN32DATA (gc);
|
|
|
|
data->pen_style &= ~(PS_STYLE_MASK);
|
|
data->pen_style |= PS_DASH;
|
|
|
|
/*
|
|
* Set the extended line style. This could be done by
|
|
* PS_USERSTYLE and ExtCreatePen; but ONLY on WinNT,
|
|
* so let's make a guess (based on the implementation
|
|
* in DIA). On Win9x this does only work for lines
|
|
* with width one ...
|
|
*
|
|
* More workarounds for Win9x descibed at:
|
|
* http://www.codeguru.com/gdi/dashed.shtml
|
|
*/
|
|
if (!IS_WIN_NT (windows_version) && data->pen_width > 1)
|
|
{
|
|
GDK_NOTE (MISC, g_print ("gdk_win32_gc_set_dashes: not fully supported\n"));
|
|
data->pen_style |= PS_SOLID;
|
|
return;
|
|
}
|
|
|
|
/* data->pen_style = PS_COSMETIC; ??? */
|
|
if (2 == n)
|
|
{
|
|
if ((dash_list[0] == dash_list[1]) && (dash_list[0] > 2))
|
|
{
|
|
data->pen_style |= PS_DASH;
|
|
GDK_NOTE (MISC, g_print("gdk_win32_gc_set_dashes: PS_DASH (%d,%d)\n",
|
|
dash_list[0], dash_list[1]));
|
|
}
|
|
else
|
|
{
|
|
data->pen_style |= PS_DOT;
|
|
GDK_NOTE (MISC, g_print("gdk_win32_gc_set_dashes: PS_DOT (%d,%d)\n",
|
|
dash_list[0], dash_list[1]));
|
|
}
|
|
}
|
|
else if (4 == n)
|
|
{
|
|
data->pen_style |= PS_DASHDOT;
|
|
GDK_NOTE (MISC, g_print("gdk_win32_gc_set_dashes: PS_DASHDOT (%d,%d,%d,%d)\n",
|
|
dash_list[0], dash_list[1],
|
|
dash_list[2], dash_list[3]));
|
|
}
|
|
else if (6 == n)
|
|
{
|
|
data->pen_style |= PS_DASHDOTDOT;
|
|
GDK_NOTE (MISC, g_print("gdk_win32_gc_set_dashes: PS_DASHDOTDOT (%d,%d,%d,%d,%d,%d)\n",
|
|
dash_list[0], dash_list[1],
|
|
dash_list[2], dash_list[3],
|
|
dash_list[4], dash_list[5]));
|
|
}
|
|
else
|
|
{
|
|
data->pen_style |= PS_DASH;
|
|
GDK_NOTE (MISC, g_print("gdk_win32_gc_set_dashes: no guess for %d dashes\n", n));
|
|
}
|
|
}
|
|
|
|
void
|
|
gdk_gc_set_clip_rectangle (GdkGC *gc,
|
|
GdkRectangle *rectangle)
|
|
{
|
|
GdkGCWin32Data *data;
|
|
|
|
g_return_if_fail (gc != NULL);
|
|
|
|
data = GDK_GC_WIN32DATA (gc);
|
|
|
|
if (data->clip_region != NULL)
|
|
if (!DeleteObject (data->clip_region))
|
|
WIN32_GDI_FAILED ("DeleteObject");
|
|
if (rectangle)
|
|
{
|
|
GDK_NOTE (MISC,
|
|
g_print ("gdk_gc_set_clip_rectangle: (%d) %dx%d@+%d+%d\n",
|
|
data,
|
|
rectangle->width, rectangle->height,
|
|
rectangle->x, rectangle->y));
|
|
if ((data->clip_region =
|
|
CreateRectRgn (rectangle->x, rectangle->y,
|
|
rectangle->x + rectangle->width,
|
|
rectangle->y + rectangle->height)) == NULL)
|
|
WIN32_GDI_FAILED ("CreateRectRgn");
|
|
|
|
data->values_mask |= GDK_GC_CLIP_MASK;
|
|
}
|
|
else
|
|
{
|
|
GDK_NOTE (MISC, g_print ("gdk_gc_set_clip_rectangle: (%d) NULL\n",
|
|
data));
|
|
data->clip_region = NULL;
|
|
data->values_mask &= ~GDK_GC_CLIP_MASK;
|
|
}
|
|
data->values_mask &= ~(GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN);
|
|
}
|
|
|
|
void
|
|
gdk_gc_set_clip_region (GdkGC *gc,
|
|
GdkRegion *region)
|
|
{
|
|
GdkGCWin32Data *data;
|
|
|
|
g_return_if_fail (gc != NULL);
|
|
|
|
data = GDK_GC_WIN32DATA (gc);
|
|
|
|
GDK_NOTE (MISC, g_print ("gdk_gc_set_clip_region: (%d) %s\n",
|
|
data, (region != NULL ? "xxx" : "None")));
|
|
|
|
if (data->clip_region != NULL)
|
|
if (!DeleteObject (data->clip_region))
|
|
WIN32_GDI_FAILED ("DeleteObject");
|
|
if (region)
|
|
{
|
|
GdkRegionPrivate *region_private;
|
|
|
|
region_private = (GdkRegionPrivate*) region;
|
|
data->clip_region = CreateRectRgn (1, 1, 0, 0);
|
|
CombineRgn (data->clip_region, region_private->xregion, NULL, RGN_COPY);
|
|
data->values_mask |= GDK_GC_CLIP_MASK;
|
|
}
|
|
else
|
|
{
|
|
data->clip_region = NULL;
|
|
data->values_mask &= ~GDK_GC_CLIP_MASK;
|
|
}
|
|
}
|
|
|
|
void
|
|
gdk_gc_copy (GdkGC *dst_gc, GdkGC *src_gc)
|
|
{
|
|
GdkGCWin32Data *dst_data = GDK_GC_WIN32DATA (dst_gc);
|
|
GdkGCWin32Data *src_data = GDK_GC_WIN32DATA (src_gc);
|
|
DWORD nbytes;
|
|
LPRGNDATA rgn;
|
|
|
|
if (dst_data->font != NULL)
|
|
gdk_font_unref (dst_data->font);
|
|
if (dst_data->tile != NULL)
|
|
gdk_drawable_unref (dst_data->tile);
|
|
if (dst_data->stipple != NULL)
|
|
gdk_drawable_unref (dst_data->stipple);
|
|
if (dst_data->clip_region != NULL)
|
|
if (!DeleteObject (dst_data->clip_region))
|
|
WIN32_GDI_FAILED ("DeleteObject");
|
|
|
|
*dst_data = *src_data;
|
|
|
|
if (dst_data->clip_region != NULL)
|
|
{
|
|
nbytes = GetRegionData (dst_data->clip_region, 0, NULL);
|
|
rgn = g_malloc (nbytes);
|
|
GetRegionData (dst_data->clip_region, nbytes, rgn);
|
|
if ((dst_data->clip_region = ExtCreateRegion (NULL, nbytes, rgn)) == NULL)
|
|
WIN32_GDI_FAILED ("ExtCreateRegion");
|
|
g_free (rgn);
|
|
}
|
|
|
|
if (dst_data->font != NULL)
|
|
gdk_font_ref (dst_data->font);
|
|
if (dst_data->tile != NULL)
|
|
gdk_drawable_ref (dst_data->tile);
|
|
if (dst_data->stipple != NULL)
|
|
gdk_drawable_ref (dst_data->stipple);
|
|
}
|
|
|
|
static guint bitmask[9] = { 0, 1, 3, 7, 15, 31, 63, 127, 255 };
|
|
|
|
COLORREF
|
|
gdk_colormap_color (GdkColormapPrivateWin32 *colormap_private,
|
|
gulong pixel)
|
|
{
|
|
GdkVisual *visual;
|
|
guchar r, g, b;
|
|
|
|
if (colormap_private == NULL || colormap_private->xcolormap->rc_palette)
|
|
return PALETTEINDEX (pixel);
|
|
else
|
|
{
|
|
visual = colormap_private->base.visual;
|
|
r = (pixel & visual->red_mask) >> visual->red_shift;
|
|
r = (r * 255) / bitmask[visual->red_prec];
|
|
g = (pixel & visual->green_mask) >> visual->green_shift;
|
|
g = (g * 255) / bitmask[visual->green_prec];
|
|
b = (pixel & visual->blue_mask) >> visual->blue_shift;
|
|
b = (b * 255) / bitmask[visual->blue_prec];
|
|
|
|
return RGB (r, g, b);
|
|
}
|
|
}
|
|
|
|
static void
|
|
predraw_set_foreground (GdkGCWin32Data *data,
|
|
GdkColormapPrivateWin32 *colormap_private)
|
|
{
|
|
COLORREF fg;
|
|
LOGBRUSH logbrush;
|
|
HPEN hpen;
|
|
HBRUSH hbr;
|
|
|
|
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)
|
|
WIN32_GDI_FAILED ("CreatePalette");
|
|
}
|
|
SelectPalette (data->xgc, hpal, FALSE);
|
|
RealizePalette (data->xgc);
|
|
fg = PALETTEINDEX (data->foreground);
|
|
}
|
|
else if (colormap_private->xcolormap->rc_palette)
|
|
{
|
|
int k;
|
|
if (SelectPalette (data->xgc, colormap_private->xcolormap->palette,
|
|
FALSE) == NULL)
|
|
WIN32_GDI_FAILED ("SelectPalette");
|
|
if (TRUE || colormap_private->xcolormap->stale)
|
|
{
|
|
if ((k = RealizePalette (data->xgc)) == GDI_ERROR)
|
|
WIN32_GDI_FAILED ("RealizePalette");
|
|
colormap_private->xcolormap->stale = FALSE;
|
|
}
|
|
#if 0
|
|
g_print ("Selected palette %#x for gc %#x, realized %d colors\n",
|
|
colormap_private->xcolormap->palette, data->xgc, k);
|
|
#endif
|
|
}
|
|
|
|
fg = gdk_colormap_color (colormap_private, data->foreground);
|
|
|
|
if (SetTextColor (data->xgc, fg) == CLR_INVALID)
|
|
WIN32_GDI_FAILED ("SetTextColor");
|
|
|
|
/* Create and select pen and brush. */
|
|
|
|
logbrush.lbStyle = BS_SOLID;
|
|
logbrush.lbColor = fg;
|
|
|
|
if ((hpen = ExtCreatePen (data->pen_style, data->pen_width,
|
|
&logbrush, 0, NULL)) == NULL)
|
|
WIN32_GDI_FAILED ("ExtCreatePen");
|
|
|
|
if (SelectObject (data->xgc, hpen) == NULL)
|
|
WIN32_GDI_FAILED ("SelectObject");
|
|
|
|
switch (data->fill_style)
|
|
{
|
|
case GDK_OPAQUE_STIPPLED:
|
|
if ((hbr = CreatePatternBrush (GDK_DRAWABLE_XID (data->stipple))) == NULL)
|
|
WIN32_GDI_FAILED ("CreatePatternBrush");
|
|
|
|
SetBrushOrgEx(data->xgc, data->ts_x_origin,
|
|
data->ts_y_origin, NULL);
|
|
|
|
break;
|
|
|
|
case GDK_SOLID:
|
|
default:
|
|
if ((hbr = CreateSolidBrush (fg)) == NULL)
|
|
WIN32_GDI_FAILED ("CreateSolidBrush");
|
|
break;
|
|
}
|
|
if (SelectObject (data->xgc, hbr) == NULL)
|
|
WIN32_GDI_FAILED ("SelectObject");
|
|
}
|
|
|
|
void
|
|
predraw_set_background (GdkGCWin32Data *data,
|
|
GdkColormapPrivateWin32 *colormap_private)
|
|
{
|
|
COLORREF bg = gdk_colormap_color (colormap_private, data->background);
|
|
|
|
if (SetBkColor (data->xgc, bg) == CLR_INVALID)
|
|
WIN32_GDI_FAILED ("SetBkColor");
|
|
}
|
|
|
|
HDC
|
|
gdk_gc_predraw (GdkDrawable *drawable,
|
|
GdkGCPrivate *gc_private,
|
|
GdkGCValuesMask usage)
|
|
{
|
|
GdkDrawablePrivate *drawable_private = (GdkDrawablePrivate *) drawable;
|
|
GdkColormapPrivateWin32 *colormap_private =
|
|
(GdkColormapPrivateWin32 *) drawable_private->colormap;
|
|
GdkGCWin32Data *data = GDK_GC_WIN32DATA (gc_private);
|
|
|
|
g_assert (data->xgc == NULL);
|
|
|
|
data->hwnd = GDK_DRAWABLE_XID (drawable);
|
|
|
|
if (GDK_DRAWABLE_TYPE (drawable) == GDK_DRAWABLE_PIXMAP)
|
|
{
|
|
if ((data->xgc = CreateCompatibleDC (NULL)) == NULL)
|
|
WIN32_GDI_FAILED ("CreateCompatibleDC");
|
|
|
|
if ((data->saved_dc = SaveDC (data->xgc)) == 0)
|
|
WIN32_GDI_FAILED ("SaveDC");
|
|
|
|
if (SelectObject (data->xgc, data->hwnd) == NULL)
|
|
WIN32_GDI_FAILED ("SelectObject");
|
|
}
|
|
else
|
|
{
|
|
if ((data->xgc = GetDC (data->hwnd)) == NULL)
|
|
WIN32_GDI_FAILED ("GetDC");
|
|
|
|
if ((data->saved_dc = SaveDC (data->xgc)) == 0)
|
|
WIN32_GDI_FAILED ("SaveDC");
|
|
}
|
|
|
|
if (usage & GDK_GC_FOREGROUND)
|
|
predraw_set_foreground (data, colormap_private);
|
|
|
|
if ((usage & GDK_GC_BACKGROUND) && (data->values_mask & GDK_GC_BACKGROUND))
|
|
predraw_set_background (data, colormap_private);
|
|
|
|
if (usage & GDK_GC_FONT)
|
|
{
|
|
if (SetBkMode (data->xgc, TRANSPARENT) == 0)
|
|
WIN32_GDI_FAILED ("SetBkMode");
|
|
|
|
if (SetTextAlign (data->xgc, TA_BASELINE) == GDI_ERROR)
|
|
WIN32_GDI_FAILED ("SetTextAlign");
|
|
}
|
|
|
|
if (data->values_mask & GDK_GC_FUNCTION)
|
|
if (SetROP2 (data->xgc, data->rop2) == 0)
|
|
WIN32_GDI_FAILED ("SetROP2");
|
|
|
|
if ((data->values_mask & GDK_GC_CLIP_MASK)
|
|
&& data->clip_region != NULL)
|
|
{
|
|
if (data->values_mask & (GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN))
|
|
OffsetRgn (data->clip_region,
|
|
data->clip_x_origin, data->clip_y_origin);
|
|
SelectClipRgn (data->xgc, data->clip_region);
|
|
}
|
|
|
|
return data->xgc;
|
|
}
|
|
|
|
void
|
|
gdk_gc_postdraw (GdkDrawable *drawable,
|
|
GdkGCPrivate *gc_private,
|
|
GdkGCValuesMask usage)
|
|
{
|
|
GdkDrawablePrivate *drawable_private = (GdkDrawablePrivate *) drawable;
|
|
GdkColormapPrivateWin32 *colormap_private =
|
|
(GdkColormapPrivateWin32 *) drawable_private->colormap;
|
|
GdkGCWin32Data *data = GDK_GC_WIN32DATA (gc_private);
|
|
HGDIOBJ hpen = NULL;
|
|
HGDIOBJ hbr = NULL;
|
|
|
|
if (usage & GDK_GC_FOREGROUND)
|
|
{
|
|
if ((hpen = GetCurrentObject (data->xgc, OBJ_PEN)) == NULL)
|
|
WIN32_GDI_FAILED ("GetCurrentObject");
|
|
|
|
if ((hbr = GetCurrentObject (data->xgc, OBJ_BRUSH)) == NULL)
|
|
WIN32_GDI_FAILED ("GetCurrentObject");
|
|
}
|
|
|
|
if (!RestoreDC (data->xgc, data->saved_dc))
|
|
WIN32_GDI_FAILED ("RestoreDC");
|
|
#if 0
|
|
if (colormap_private != NULL
|
|
&& colormap_private->xcolormap->rc_palette
|
|
&& colormap_private->xcolormap->stale)
|
|
{
|
|
SelectPalette (data->xgc, GetStockObject (DEFAULT_PALETTE), FALSE);
|
|
if (!UnrealizeObject (colormap_private->xcolormap->palette))
|
|
WIN32_GDI_FAILED ("UnrealizeObject");
|
|
}
|
|
#endif
|
|
if (GDK_DRAWABLE_TYPE (drawable) == GDK_DRAWABLE_PIXMAP)
|
|
{
|
|
if (!DeleteDC (data->xgc))
|
|
WIN32_GDI_FAILED ("DeleteDC");
|
|
}
|
|
else
|
|
{
|
|
ReleaseDC (data->hwnd, data->xgc);
|
|
}
|
|
|
|
if (hpen != NULL)
|
|
if (!DeleteObject (hpen))
|
|
WIN32_GDI_FAILED ("DeleteObject");
|
|
|
|
if (hbr != NULL)
|
|
if (!DeleteObject (hbr))
|
|
WIN32_GDI_FAILED ("DeleteObject");
|
|
|
|
if ((data->values_mask & GDK_GC_CLIP_MASK)
|
|
&& data->clip_region != NULL
|
|
&& (data->values_mask & (GDK_GC_CLIP_X_ORIGIN | GDK_GC_CLIP_Y_ORIGIN)))
|
|
OffsetRgn (data->clip_region,
|
|
-data->clip_x_origin, -data->clip_y_origin);
|
|
data->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)
|
|
WIN32_GDI_FAILED ("CreatePalette");
|
|
}
|
|
|
|
/* Create a memory DC inside which we will scan the bitmap content */
|
|
hMemDC = CreateCompatibleDC (NULL);
|
|
if (!hMemDC)
|
|
{
|
|
WIN32_GDI_FAILED ("CreateCompatibleDC");
|
|
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)
|
|
{
|
|
WIN32_GDI_FAILED ("CreateDIBSection");
|
|
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)
|
|
{
|
|
WIN32_GDI_FAILED ("CreateCompatibleDC #2");
|
|
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))
|
|
{
|
|
WIN32_GDI_FAILED ("BitBlt");
|
|
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;
|
|
}
|