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gtk/gdk/win32/gdkdrawable-win32.c
Tor Lillqvist 2823963703 Win32 changes, still doesn't build though. 
2000-07-12  Tor Lillqvist  <tml@iki.fi>

Win32 changes, still doesn't build though.

* gdk/makefile.cygwin
* gdk/win32/makefile.cygwin
* gtk/makefile.cygwin: Updates.

* gdk/win32/gdkgc-win32.c (_gdk_win32_gc_new): Use the same
default values for fg and bg pixel as X11 does (0 and 1), not
black and white. Use PS_ENDCAP_FLAT and PS_JOIN_MITER by default.
Use 0 for pen width by default (treated as 1 anyway later, but for
apps that might check the value in the GdkGC).
(gdk_win32_hdc_get, gdk_win32_hdc_release): New functions, public
interface to gdk_gc_predraw and _postdraw.

* gdk/win32/gdkwin32.h
* gdk/gdk.def: Add gdk_win32_hdc_{get,release}.

* gdk/win32/gdkcolor-win32.c (gdk_colormap_alloc1): Remove
extraneous semicolon.

* gdk/win32/gdkdrawable-win32.c: Check also for pen_width == 0.

* gdk/win32/gdkimage-win32.c (gdk_image_new): Use the visual's depth,
not the Win32 bitspixel value.
2000-07-11 21:42:15 +00:00

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/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-1999. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "config.h"
#include <math.h>
#include <glib.h>
#ifndef G_PI
#define G_PI 3.14159265358979323846
#endif
#include "gdkinternals.h"
#include "gdkprivate-win32.h"
static void gdk_win32_drawable_destroy (GdkDrawable *drawable);
static void gdk_win32_draw_rectangle (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
gint x,
gint y,
gint width,
gint height);
static void gdk_win32_draw_arc (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
gint x,
gint y,
gint width,
gint height,
gint angle1,
gint angle2);
static void gdk_win32_draw_polygon (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
GdkPoint *points,
gint npoints);
static void gdk_win32_draw_text (GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const gchar *text,
gint text_length);
static void gdk_win32_draw_text_wc (GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const GdkWChar *text,
gint text_length);
static void gdk_win32_draw_drawable (GdkDrawable *drawable,
GdkGC *gc,
GdkPixmap *src,
gint xsrc,
gint ysrc,
gint xdest,
gint ydest,
gint width,
gint height);
static void gdk_win32_draw_points (GdkDrawable *drawable,
GdkGC *gc,
GdkPoint *points,
gint npoints);
static void gdk_win32_draw_segments (GdkDrawable *drawable,
GdkGC *gc,
GdkSegment *segs,
gint nsegs);
static void gdk_win32_draw_lines (GdkDrawable *drawable,
GdkGC *gc,
GdkPoint *points,
gint npoints);
GdkDrawableClass _gdk_win32_drawable_class = {
gdk_win32_drawable_destroy,
_gdk_win32_gc_new,
gdk_win32_draw_rectangle,
gdk_win32_draw_arc,
gdk_win32_draw_polygon,
gdk_win32_draw_text,
gdk_win32_draw_text_wc,
gdk_win32_draw_drawable,
gdk_win32_draw_points,
gdk_win32_draw_segments,
gdk_win32_draw_lines
};
/*****************************************************
* Win32 specific implementations of generic functions *
*****************************************************/
GdkColormap*
gdk_drawable_get_colormap (GdkDrawable *drawable)
{
GdkDrawablePrivate *drawable_private;
g_return_val_if_fail (drawable != NULL, NULL);
drawable_private = (GdkDrawablePrivate*) drawable;
if (!GDK_DRAWABLE_DESTROYED (drawable))
{
if (drawable_private->colormap == NULL)
return gdk_colormap_get_system (); /* XXX ??? */
else
return drawable_private->colormap;
}
return NULL;
}
void
gdk_drawable_set_colormap (GdkDrawable *drawable,
GdkColormap *colormap)
{
GdkDrawablePrivate *drawable_private;
GdkColormapPrivateWin32 *colormap_private;
g_return_if_fail (drawable != NULL);
g_return_if_fail (colormap != NULL);
drawable_private = (GdkDrawablePrivate *) drawable;
colormap_private = (GdkColormapPrivateWin32 *) colormap;
if (!GDK_DRAWABLE_DESTROYED (drawable))
{
if (GDK_IS_WINDOW (drawable))
{
g_return_if_fail (colormap_private->base.visual !=
((GdkColormapPrivate *) (drawable_private->colormap))->visual);
/* XXX ??? */
GDK_NOTE (MISC, g_print ("gdk_drawable_set_colormap: %#x %#x\n",
GDK_DRAWABLE_XID (drawable),
colormap_private->xcolormap));
}
if (drawable_private->colormap)
gdk_colormap_unref (drawable_private->colormap);
drawable_private->colormap = colormap;
gdk_colormap_ref (drawable_private->colormap);
if (GDK_IS_WINDOW (drawable)
&& drawable_private->window_type != GDK_WINDOW_TOPLEVEL)
gdk_window_add_colormap_windows (drawable);
}
}
/* Drawing
*/
static void
gdk_win32_drawable_destroy (GdkDrawable *drawable)
{
}
static void
gdk_win32_draw_rectangle (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
gint x,
gint y,
gint width,
gint height)
{
GdkGCPrivate *gc_private = (GdkGCPrivate*) gc;
GdkGCWin32Data *gc_data = GDK_GC_WIN32DATA (gc_private);
HDC hdc;
HGDIOBJ oldpen, oldbrush;
HBRUSH hbr = NULL;
POINT pts[4];
gboolean ok = TRUE;
GDK_NOTE (MISC, g_print ("gdk_win32_draw_rectangle: %#x (%d) %s%dx%d@+%d+%d\n",
GDK_DRAWABLE_XID (drawable),
gc_private,
(filled ? "fill " : ""),
width, height, x, y));
hdc = gdk_gc_predraw (drawable, gc_private,
GDK_GC_FOREGROUND|GDK_GC_BACKGROUND);
#if 0
{
HBRUSH hbr = GetCurrentObject (hdc, OBJ_BRUSH);
HPEN hpen = GetCurrentObject (hdc, OBJ_PEN);
LOGBRUSH lbr;
LOGPEN lpen;
GetObject (hbr, sizeof (lbr), &lbr);
GetObject (hpen, sizeof (lpen), &lpen);
g_print ("current brush: style = %s, color = 0x%.08x\n",
(lbr.lbStyle == BS_SOLID ? "SOLID" : "???"),
lbr.lbColor);
g_print ("current pen: style = %s, width = %d, color = 0x%.08x\n",
(lpen.lopnStyle == PS_SOLID ? "SOLID" : "???"),
lpen.lopnWidth,
lpen.lopnColor);
}
#endif
if (gc_data->fill_style == GDK_OPAQUE_STIPPLED)
{
if (!BeginPath (hdc))
WIN32_GDI_FAILED ("BeginPath"), ok = FALSE;
/* Win9x doesn't support Rectangle calls in a path,
* thus use Polyline.
*/
pts[0].x = x;
pts[0].y = y;
pts[1].x = x + width + 1;
pts[1].y = y;
pts[2].x = x + width + 1;
pts[2].y = y + height + 1;
pts[3].x = x;
pts[3].y = y + height + 1;
if (ok)
MoveToEx (hdc, x, y, NULL);
if (ok && !Polyline (hdc, pts, 4))
WIN32_GDI_FAILED ("Polyline"), ok = FALSE;
if (ok && !CloseFigure (hdc))
WIN32_GDI_FAILED ("CloseFigure"), ok = FALSE;
if (ok && !EndPath (hdc))
WIN32_GDI_FAILED ("EndPath"), ok = FALSE;
if (ok && !filled)
if (!WidenPath (hdc))
WIN32_GDI_FAILED ("WidenPath"), ok = FALSE;
if (ok && !FillPath (hdc))
WIN32_GDI_FAILED ("FillPath"), ok = FALSE;
if (hbr != NULL)
if (!DeleteObject (hbr))
WIN32_GDI_FAILED ("DeleteObject");
}
else
{
if (filled)
oldpen = SelectObject (hdc, GetStockObject (NULL_PEN));
else
oldbrush = SelectObject (hdc, GetStockObject (HOLLOW_BRUSH));
if (!Rectangle (hdc, x, y, x+width+1, y+height+1))
WIN32_GDI_FAILED ("Rectangle");
if (filled)
SelectObject (hdc, oldpen);
else
SelectObject (hdc, oldbrush);
}
gdk_gc_postdraw (drawable, gc_private, GDK_GC_FOREGROUND|GDK_GC_BACKGROUND);
}
static void
gdk_win32_draw_arc (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
gint x,
gint y,
gint width,
gint height,
gint angle1,
gint angle2)
{
GdkGCPrivate *gc_private;
HDC hdc;
int nXStartArc, nYStartArc, nXEndArc, nYEndArc;
gc_private = (GdkGCPrivate*) gc;
GDK_NOTE (MISC, g_print ("gdk_draw_arc: %#x %d,%d,%d,%d %d %d\n",
GDK_DRAWABLE_XID (drawable),
x, y, width, height, angle1, angle2));
/* Seems that drawing arcs with width or height <= 2 fails, at least
* with my TNT card.
*/
if (width > 2 && height > 2 && angle2 != 0)
{
hdc = gdk_gc_predraw (drawable, gc_private,
GDK_GC_FOREGROUND|GDK_GC_BACKGROUND);
if (angle2 >= 360*64)
{
nXStartArc = nYStartArc = nXEndArc = nYEndArc = 0;
}
else if (angle2 > 0)
{
/* The 100. is just an arbitrary value */
nXStartArc = x + width/2 + 100. * cos(angle1/64.*2.*G_PI/360.);
nYStartArc = y + height/2 + -100. * sin(angle1/64.*2.*G_PI/360.);
nXEndArc = x + width/2 + 100. * cos((angle1+angle2)/64.*2.*G_PI/360.);
nYEndArc = y + height/2 + -100. * sin((angle1+angle2)/64.*2.*G_PI/360.);
}
else
{
nXEndArc = x + width/2 + 100. * cos(angle1/64.*2.*G_PI/360.);
nYEndArc = y + height/2 + -100. * sin(angle1/64.*2.*G_PI/360.);
nXStartArc = x + width/2 + 100. * cos((angle1+angle2)/64.*2.*G_PI/360.);
nYStartArc = y + height/2 + -100. * sin((angle1+angle2)/64.*2.*G_PI/360.);
}
/* GDK_OPAQUE_STIPPLED arcs not implemented. */
if (filled)
{
GDK_NOTE (MISC, g_print ("...Pie(hdc,%d,%d,%d,%d,%d,%d,%d,%d)\n",
x, y, x+width, y+height,
nXStartArc, nYStartArc,
nXEndArc, nYEndArc));
if (!Pie (hdc, x, y, x+width, y+height,
nXStartArc, nYStartArc, nXEndArc, nYEndArc))
WIN32_GDI_FAILED ("Pie");
}
else
{
GDK_NOTE (MISC, g_print ("...Arc(hdc,%d,%d,%d,%d,%d,%d,%d,%d)\n",
x, y, x+width, y+height,
nXStartArc, nYStartArc,
nXEndArc, nYEndArc));
if (!Arc (hdc, x, y, x+width, y+height,
nXStartArc, nYStartArc, nXEndArc, nYEndArc))
WIN32_GDI_FAILED ("Arc");
}
gdk_gc_postdraw (drawable, gc_private,
GDK_GC_FOREGROUND|GDK_GC_BACKGROUND);
}
}
static void
gdk_win32_draw_polygon (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
GdkPoint *points,
gint npoints)
{
GdkGCPrivate *gc_private = (GdkGCPrivate*) gc;
GdkGCWin32Data *gc_data = GDK_GC_WIN32DATA (gc_private);
HDC hdc;
HBRUSH hbr = NULL;
POINT *pts;
gboolean ok = TRUE;
int i;
GDK_NOTE (MISC, g_print ("gdk_win32_draw_polygon: %#x (%d) %d\n",
GDK_DRAWABLE_XID (drawable), gc_private,
npoints));
if (npoints < 2)
return;
hdc = gdk_gc_predraw (drawable, gc_private,
GDK_GC_FOREGROUND|GDK_GC_BACKGROUND);
pts = g_new (POINT, npoints+1);
for (i = 0; i < npoints; i++)
{
pts[i].x = points[i].x;
pts[i].y = points[i].y;
}
if (gc_data->fill_style == GDK_OPAQUE_STIPPLED)
{
if (!BeginPath (hdc))
WIN32_GDI_FAILED ("BeginPath"), ok = FALSE;
MoveToEx (hdc, points[0].x, points[0].y, NULL);
if (pts[0].x == pts[npoints-1].x && pts[0].y == pts[npoints-1].y)
npoints--;
if (ok && !Polyline (hdc, pts, 4))
WIN32_GDI_FAILED ("Polyline"), ok = FALSE;
if (ok && !CloseFigure (hdc))
WIN32_GDI_FAILED ("CloseFigure"), ok = FALSE;
if (ok && !EndPath (hdc))
WIN32_GDI_FAILED ("EndPath"), ok = FALSE;
if (ok && !filled)
if (!WidenPath (hdc))
WIN32_GDI_FAILED ("WidenPath"), ok = FALSE;
if (ok && !FillPath (hdc))
WIN32_GDI_FAILED ("FillPath"), ok = FALSE;
if (hbr != NULL)
if (!DeleteObject (hbr))
WIN32_GDI_FAILED ("DeleteObject");
}
else
{
if (points[0].x != points[npoints-1].x
|| points[0].y != points[npoints-1].y)
{
pts[npoints].x = points[0].x;
pts[npoints].y = points[0].y;
npoints++;
}
if (filled)
{
if (!Polygon (hdc, pts, npoints))
WIN32_GDI_FAILED ("Polygon");
}
else
{
if (!Polyline (hdc, pts, npoints))
WIN32_GDI_FAILED ("Polyline");
}
}
g_free (pts);
gdk_gc_postdraw (drawable, gc_private, GDK_GC_FOREGROUND|GDK_GC_BACKGROUND);
}
typedef struct
{
gint x, y;
HDC hdc;
} gdk_draw_text_arg;
static void
gdk_draw_text_handler (GdkWin32SingleFont *singlefont,
const wchar_t *wcstr,
int wclen,
void *arg)
{
HGDIOBJ oldfont;
SIZE size;
gdk_draw_text_arg *argp = (gdk_draw_text_arg *) arg;
if (!singlefont)
return;
if ((oldfont = SelectObject (argp->hdc, singlefont->xfont)) == NULL)
{
WIN32_GDI_FAILED ("SelectObject");
return;
}
if (!TextOutW (argp->hdc, argp->x, argp->y, wcstr, wclen))
WIN32_GDI_FAILED ("TextOutW");
GetTextExtentPoint32W (argp->hdc, wcstr, wclen, &size);
argp->x += size.cx;
SelectObject (argp->hdc, oldfont);
}
static void
gdk_win32_draw_text (GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const gchar *text,
gint text_length)
{
GdkGCPrivate *gc_private;
wchar_t *wcstr;
gint wlen;
gdk_draw_text_arg arg;
if (GDK_DRAWABLE_DESTROYED (drawable))
return;
if (text_length == 0)
return;
g_assert (font->type == GDK_FONT_FONT || font->type == GDK_FONT_FONTSET);
gc_private = (GdkGCPrivate*) gc;
arg.x = x;
arg.y = y;
arg.hdc = gdk_gc_predraw (drawable, gc_private,
GDK_GC_FOREGROUND|GDK_GC_FONT);
GDK_NOTE (MISC, g_print ("gdk_draw_text: %#x (%d,%d) \"%.*s\" (len %d)\n",
GDK_DRAWABLE_XID (drawable),
x, y,
(text_length > 10 ? 10 : text_length),
text, text_length));
wcstr = g_new (wchar_t, text_length);
if (text_length == 1)
{
/* For single characters, don't try to interpret as UTF-8. */
wcstr[0] = (guchar) text[0];
gdk_wchar_text_handle (font, wcstr, 1, gdk_draw_text_handler, &arg);
}
else
{
if ((wlen = gdk_nmbstowchar_ts (wcstr, text, text_length, text_length)) == -1)
g_warning ("gdk_win32_draw_text: gdk_nmbstowchar_ts failed");
else
gdk_wchar_text_handle (font, wcstr, wlen, gdk_draw_text_handler, &arg);
}
g_free (wcstr);
gdk_gc_postdraw (drawable, gc_private, GDK_GC_FOREGROUND|GDK_GC_FONT);
}
static void
gdk_win32_draw_text_wc (GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const GdkWChar *text,
gint text_length)
{
GdkGCPrivate *gc_private;
gint i, wlen;
wchar_t *wcstr;
gdk_draw_text_arg arg;
if (GDK_DRAWABLE_DESTROYED (drawable))
return;
if (text_length == 0)
return;
g_assert (font->type == GDK_FONT_FONT || font->type == GDK_FONT_FONTSET);
gc_private = (GdkGCPrivate*) gc;
arg.x = x;
arg.y = y;
arg.hdc = gdk_gc_predraw (drawable, gc_private,
GDK_GC_FOREGROUND|GDK_GC_FONT);
GDK_NOTE (MISC, g_print ("gdk_draw_text_wc: %#x (%d,%d) len: %d\n",
GDK_DRAWABLE_XID (drawable),
x, y, text_length));
if (sizeof (wchar_t) != sizeof (GdkWChar))
{
wcstr = g_new (wchar_t, text_length);
for (i = 0; i < text_length; i++)
wcstr[i] = text[i];
}
else
wcstr = (wchar_t *) text;
gdk_wchar_text_handle (font, wcstr, text_length,
gdk_draw_text_handler, &arg);
if (sizeof (wchar_t) != sizeof (GdkWChar))
g_free (wcstr);
gdk_gc_postdraw (drawable, gc_private, GDK_GC_FOREGROUND|GDK_GC_FONT);
}
static void
gdk_win32_draw_drawable (GdkDrawable *drawable,
GdkGC *gc,
GdkPixmap *src,
gint xsrc,
gint ysrc,
gint xdest,
gint ydest,
gint width,
gint height)
{
GdkDrawablePrivate *src_private;
GdkGCPrivate *gc_private;
HDC hdc;
HDC srcdc;
HGDIOBJ hgdiobj;
HRGN src_rgn, draw_rgn, outside_rgn;
RECT r;
src_private = (GdkDrawablePrivate*) src;
gc_private = (GdkGCPrivate*) gc;
GDK_NOTE (MISC, g_print ("gdk_draw_pixmap: dest: %#x "
"src: %#x %dx%d@+%d+%d"
" dest: %#x @+%d+%d\n",
GDK_DRAWABLE_XID (drawable),
GDK_DRAWABLE_XID (src),
width, height, xsrc, ysrc,
GDK_DRAWABLE_XID (drawable), xdest, ydest));
hdc = gdk_gc_predraw (drawable, gc_private, 0);
src_rgn = CreateRectRgn (0, 0, src_private->width + 1, src_private->height + 1);
draw_rgn = CreateRectRgn (xsrc, ysrc, xsrc + width + 1, ysrc + height + 1);
SetRectEmpty (&r);
outside_rgn = CreateRectRgnIndirect (&r);
if (GDK_DRAWABLE_TYPE (drawable) != GDK_DRAWABLE_PIXMAP)
{
/* If we are drawing on a window, calculate the region that is
* outside the source pixmap, and invalidate that, causing it to
* be cleared. XXX
*/
if (CombineRgn (outside_rgn, draw_rgn, src_rgn, RGN_DIFF) != NULLREGION)
{
OffsetRgn (outside_rgn, xdest, ydest);
GDK_NOTE (MISC, (GetRgnBox (outside_rgn, &r),
g_print ("...calling InvalidateRgn, "
"bbox: %dx%d@+%d+%d\n",
r.right - r.left - 1, r.bottom - r.top - 1,
r.left, r.top)));
InvalidateRgn (GDK_DRAWABLE_XID (drawable), outside_rgn, TRUE);
}
}
#if 1 /* Don't know if this is necessary */
if (CombineRgn (draw_rgn, draw_rgn, src_rgn, RGN_AND) == COMPLEXREGION)
g_warning ("gdk_win32_draw_drawable: CombineRgn returned a COMPLEXREGION");
GetRgnBox (draw_rgn, &r);
if (r.left != xsrc
|| r.top != ysrc
|| r.right != xsrc + width + 1
|| r.bottom != ysrc + height + 1)
{
xdest += r.left - xsrc;
xsrc = r.left;
ydest += r.top - ysrc;
ysrc = r.top;
width = r.right - xsrc - 1;
height = r.bottom - ysrc - 1;
GDK_NOTE (MISC, g_print ("... restricted to src: %dx%d@+%d+%d, "
"dest: @+%d+%d\n",
width, height, xsrc, ysrc,
xdest, ydest));
}
#endif
DeleteObject (src_rgn);
DeleteObject (draw_rgn);
DeleteObject (outside_rgn);
/* Strangely enough, this function is called also to bitblt
* from a window.
*/
if (src_private->window_type == GDK_DRAWABLE_PIXMAP)
{
if ((srcdc = CreateCompatibleDC (hdc)) == NULL)
WIN32_GDI_FAILED ("CreateCompatibleDC");
if ((hgdiobj = SelectObject (srcdc, GDK_DRAWABLE_XID (src))) == NULL)
WIN32_GDI_FAILED ("SelectObject");
if (!BitBlt (hdc, xdest, ydest, width, height,
srcdc, xsrc, ysrc, SRCCOPY))
WIN32_GDI_FAILED ("BitBlt");
if ((SelectObject (srcdc, hgdiobj) == NULL))
WIN32_GDI_FAILED ("SelectObject");
if (!DeleteDC (srcdc))
WIN32_GDI_FAILED ("DeleteDC");
}
else
{
if (GDK_DRAWABLE_XID(drawable) == GDK_DRAWABLE_XID (src))
{
/* Blitting inside a window, use ScrollDC */
RECT scrollRect, clipRect, emptyRect;
HRGN updateRgn;
scrollRect.left = MIN (xsrc, xdest);
scrollRect.top = MIN (ysrc, ydest);
scrollRect.right = MAX (xsrc + width + 1, xdest + width + 1);
scrollRect.bottom = MAX (ysrc + height + 1, ydest + height + 1);
clipRect.left = xdest;
clipRect.top = ydest;
clipRect.right = xdest + width + 1;
clipRect.bottom = ydest + height + 1;
SetRectEmpty (&emptyRect);
updateRgn = CreateRectRgnIndirect (&emptyRect);
if (!ScrollDC (hdc, xdest - xsrc, ydest - ysrc,
&scrollRect, &clipRect,
updateRgn, NULL))
WIN32_GDI_FAILED ("ScrollDC");
if (!InvalidateRgn (GDK_DRAWABLE_XID (drawable), updateRgn, FALSE))
WIN32_GDI_FAILED ("InvalidateRgn");
if (!UpdateWindow (GDK_DRAWABLE_XID (drawable)))
WIN32_GDI_FAILED ("UpdateWindow");
}
else
{
if ((srcdc = GetDC (GDK_DRAWABLE_XID (src))) == NULL)
WIN32_GDI_FAILED ("GetDC");
if (!BitBlt (hdc, xdest, ydest, width, height,
srcdc, xsrc, ysrc, SRCCOPY))
WIN32_GDI_FAILED ("BitBlt");
ReleaseDC (GDK_DRAWABLE_XID (src), srcdc);
}
}
gdk_gc_postdraw (drawable, gc_private, 0);
}
static void
gdk_win32_draw_points (GdkDrawable *drawable,
GdkGC *gc,
GdkPoint *points,
gint npoints)
{
HDC hdc;
COLORREF fg;
GdkGCPrivate *gc_private = (GdkGCPrivate*) gc;
GdkGCWin32Data *gc_data = GDK_GC_WIN32DATA (gc_private);
GdkDrawablePrivate *drawable_private = (GdkDrawablePrivate *) drawable;
GdkColormapPrivateWin32 *colormap_private =
(GdkColormapPrivateWin32 *) drawable_private->colormap;
int i;
hdc = gdk_gc_predraw (drawable, gc_private, 0);
fg = gdk_colormap_color (colormap_private, gc_data->foreground);
GDK_NOTE (MISC, g_print ("gdk_draw_points: %#x %dx%.06x\n",
GDK_DRAWABLE_XID (drawable), npoints, fg));
for (i = 0; i < npoints; i++)
SetPixel (hdc, points[i].x, points[i].y, fg);
gdk_gc_postdraw (drawable, gc_private, 0);
}
static void
gdk_win32_draw_segments (GdkDrawable *drawable,
GdkGC *gc,
GdkSegment *segs,
gint nsegs)
{
GdkGCPrivate *gc_private = (GdkGCPrivate*) gc;
GdkGCWin32Data *gc_data = GDK_GC_WIN32DATA (gc_private);
HDC hdc;
HBRUSH hbr = NULL;
gboolean ok = TRUE;
int i;
GDK_NOTE (MISC, g_print ("gdk_win32_draw_segments: %#x nsegs: %d\n",
GDK_DRAWABLE_XID (drawable), nsegs));
hdc = gdk_gc_predraw (drawable, gc_private,
GDK_GC_FOREGROUND|GDK_GC_BACKGROUND);
if (gc_data->fill_style == GDK_OPAQUE_STIPPLED)
{
if (!BeginPath (hdc))
WIN32_GDI_FAILED ("BeginPath"), ok = FALSE;
for (i = 0; i < nsegs; i++)
{
if (ok && !MoveToEx (hdc, segs[i].x1, segs[i].y1, NULL))
WIN32_GDI_FAILED ("MoveToEx"), ok = FALSE;
if (ok && !LineTo (hdc, segs[i].x2, segs[i].y2))
WIN32_GDI_FAILED ("LineTo"), ok = FALSE;
/* Draw end pixel */
if (ok && gc_data->pen_width <= 1)
if (!LineTo (hdc, segs[i].x2 + 1, segs[i].y2))
WIN32_GDI_FAILED ("LineTo"), ok = FALSE;
}
if (ok && !EndPath (hdc))
WIN32_GDI_FAILED ("EndPath"), ok = FALSE;
if (ok && !WidenPath (hdc))
WIN32_GDI_FAILED ("WidenPath"), ok = FALSE;
if (ok && !FillPath (hdc))
WIN32_GDI_FAILED ("FillPath"), ok = FALSE;
if (hbr != NULL)
if (!DeleteObject (hbr))
WIN32_GDI_FAILED ("DeleteObject");
}
else
{
for (i = 0; i < nsegs; i++)
{
if (!MoveToEx (hdc, segs[i].x1, segs[i].y1, NULL))
WIN32_GDI_FAILED ("MoveToEx");
if (!LineTo (hdc, segs[i].x2, segs[i].y2))
WIN32_GDI_FAILED ("LineTo");
/* Draw end pixel */
if (gc_data->pen_width <= 1)
if (!LineTo (hdc, segs[i].x2 + 1, segs[i].y2))
WIN32_GDI_FAILED ("LineTo");
}
}
gdk_gc_postdraw (drawable, gc_private, GDK_GC_FOREGROUND|GDK_GC_BACKGROUND);
}
static void
gdk_win32_draw_lines (GdkDrawable *drawable,
GdkGC *gc,
GdkPoint *points,
gint npoints)
{
GdkGCPrivate *gc_private = (GdkGCPrivate*) gc;
GdkGCWin32Data *gc_data = GDK_GC_WIN32DATA (gc_private);
HDC hdc;
POINT *pts;
int i;
if (npoints < 2)
return;
hdc = gdk_gc_predraw (drawable, gc_private,
GDK_GC_FOREGROUND|GDK_GC_BACKGROUND);
#if 1
pts = g_new (POINT, npoints);
for (i = 0; i < npoints; i++)
{
pts[i].x = points[i].x;
pts[i].y = points[i].y;
}
if (!Polyline (hdc, pts, npoints))
WIN32_GDI_FAILED ("Polyline");
g_free (pts);
/* Draw end pixel */
if (gc_data->pen_width <= 1)
{
MoveToEx (hdc, points[npoints-1].x, points[npoints-1].y, NULL);
if (!LineTo (hdc, points[npoints-1].x + 1, points[npoints-1].y))
WIN32_GDI_FAILED ("LineTo");
}
#else
MoveToEx (hdc, points[0].x, points[0].y, NULL);
for (i = 1; i < npoints; i++)
if (!LineTo (hdc, points[i].x, points[i].y))
WIN32_GDI_FAILED ("LineTo");
/* Draw end pixel */
/* LineTo doesn't draw the last point, so if we have a pen width of 1,
* we draw the end pixel separately... With wider pens we don't care.
* //HB: But the NT developers don't read their API documentation ...
*/
if (gc_data->pen_width <= 1 && windows_version > 0x80000000)
if (!LineTo (hdc, points[npoints-1].x + 1, points[npoints-1].y))
WIN32_GDI_FAILED ("LineTo");
#endif
gdk_gc_postdraw (drawable, gc_private, GDK_GC_FOREGROUND|GDK_GC_BACKGROUND);
}
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