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gtk/gdk/win32/gdkdrawable-win32.c
Hans Breuer 93f12bd6d4 static correct-ness, underscore prefixing of library internal functions 
2001-10-28  Hans Breuer  <hans@breuer.org>

	* gdk/gdk.c gdk/gdkevents.c
	  gdk/win32/gdkcolor-win32.c gdk/win32/gdkdnd-win32.c
	  gdk/win32/gdkdrawable-win32.c gdk/win32/gdkevents-win32.c
	  gdk/win32/gdkfont-win32.c gdk/win32/gdkgc-win32.c
	  gdk/win32/gdkim-win32.c gdk/win32/gdkmain-win32.c
	  gdk/win32/gdkprivate-win32.h gdk/win32/gdkproperty-win32.c
	  gdk/win32/gdkselection-win32.c gdk/win32/gdkwin32.h
	  gdk/win32/gdkwindow-win32.c gdk/win32/gdkwindow-win32.h :
	static correct-ness, underscore prefixing of library internal
	functions
	(applied the undisputed and the win32 part. Of the latter
	 I'm probably the one who will change it back again, if Owen
	 decides that the Gdk*Impl types should not be private to Gdk)

	* gdk/gdk.def : added the remaining exported functions
2001-10-28 21:28:51 +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 Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include <math.h>
#include <glib.h>
#include <pango/pangowin32.h>
#include "gdkinternals.h"
#include "gdkprivate-win32.h"
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);
static void gdk_win32_draw_glyphs (GdkDrawable *drawable,
GdkGC *gc,
PangoFont *font,
gint x,
gint y,
PangoGlyphString *glyphs);
static void gdk_win32_draw_image (GdkDrawable *drawable,
GdkGC *gc,
GdkImage *image,
gint xsrc,
gint ysrc,
gint xdest,
gint ydest,
gint width,
gint height);
static void gdk_win32_set_colormap (GdkDrawable *drawable,
GdkColormap *colormap);
static GdkColormap* gdk_win32_get_colormap (GdkDrawable *drawable);
static gint gdk_win32_get_depth (GdkDrawable *drawable);
static GdkVisual* gdk_win32_get_visual (GdkDrawable *drawable);
static void gdk_drawable_impl_win32_class_init (GdkDrawableImplWin32Class *klass);
static gpointer parent_class = NULL;
GType
gdk_drawable_impl_win32_get_type (void)
{
static GType object_type = 0;
if (!object_type)
{
static const GTypeInfo object_info =
{
sizeof (GdkDrawableImplWin32Class),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gdk_drawable_impl_win32_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GdkDrawableImplWin32),
0, /* n_preallocs */
(GInstanceInitFunc) NULL,
};
object_type = g_type_register_static (GDK_TYPE_DRAWABLE,
"GdkDrawableImplWin32",
&object_info, 0);
}
return object_type;
}
static void
gdk_drawable_impl_win32_class_init (GdkDrawableImplWin32Class *klass)
{
GdkDrawableClass *drawable_class = GDK_DRAWABLE_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
drawable_class->create_gc = _gdk_win32_gc_new;
drawable_class->draw_rectangle = gdk_win32_draw_rectangle;
drawable_class->draw_arc = gdk_win32_draw_arc;
drawable_class->draw_polygon = gdk_win32_draw_polygon;
drawable_class->draw_text = gdk_win32_draw_text;
drawable_class->draw_text_wc = gdk_win32_draw_text_wc;
drawable_class->draw_drawable = gdk_win32_draw_drawable;
drawable_class->draw_points = gdk_win32_draw_points;
drawable_class->draw_segments = gdk_win32_draw_segments;
drawable_class->draw_lines = gdk_win32_draw_lines;
drawable_class->draw_glyphs = gdk_win32_draw_glyphs;
drawable_class->draw_image = gdk_win32_draw_image;
drawable_class->set_colormap = gdk_win32_set_colormap;
drawable_class->get_colormap = gdk_win32_get_colormap;
drawable_class->get_depth = gdk_win32_get_depth;
drawable_class->get_visual = gdk_win32_get_visual;
drawable_class->get_image = _gdk_win32_get_image;
}
/*****************************************************
* Win32 specific implementations of generic functions *
*****************************************************/
static GdkColormap*
gdk_win32_get_colormap (GdkDrawable *drawable)
{
GdkDrawableImplWin32 *impl;
impl = GDK_DRAWABLE_IMPL_WIN32 (drawable);
return impl->colormap;
}
static void
gdk_win32_set_colormap (GdkDrawable *drawable,
GdkColormap *colormap)
{
GdkDrawableImplWin32 *impl;
g_return_if_fail (colormap != NULL);
impl = GDK_DRAWABLE_IMPL_WIN32 (drawable);
if (impl->colormap == colormap)
return;
if (impl->colormap)
gdk_colormap_unref (impl->colormap);
impl->colormap = colormap;
if (impl->colormap)
gdk_colormap_ref (impl->colormap);
}
/* Drawing
*/
static void
gdk_win32_draw_rectangle (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
gint x,
gint y,
gint width,
gint height)
{
GdkGCWin32 *gc_private = GDK_GC_WIN32 (gc);
const GdkGCValuesMask mask = GDK_GC_FOREGROUND|GDK_GC_BACKGROUND;
HDC hdc;
HGDIOBJ old_pen_or_brush;
POINT pts[4];
gboolean ok = TRUE;
GDK_NOTE (MISC, g_print ("gdk_win32_draw_rectangle: %#x (%p) %s%dx%d@+%d+%d\n",
(guint) GDK_DRAWABLE_IMPL_WIN32 (drawable)->handle,
gc_private,
(filled ? "fill " : ""),
width, height, x, y));
if (filled
&& (gc_private->tile)
&& (gc_private->values_mask & GDK_GC_TILE)
&& (gc_private->values_mask & GDK_GC_FILL))
{
_gdk_win32_draw_tiles (drawable, gc, gc_private->tile, x, y, width, height);
return;
}
hdc = gdk_win32_hdc_get (drawable, gc, mask);
#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_private->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;
}
else
{
if (filled)
old_pen_or_brush = SelectObject (hdc, GetStockObject (NULL_PEN));
else
old_pen_or_brush = SelectObject (hdc, GetStockObject (HOLLOW_BRUSH));
if (!Rectangle (hdc, x, y, x+width+1, y+height+1))
WIN32_GDI_FAILED ("Rectangle");
SelectObject (hdc, old_pen_or_brush);
}
gdk_win32_hdc_release (drawable, gc, mask);
}
static void
gdk_win32_draw_arc (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
gint x,
gint y,
gint width,
gint height,
gint angle1,
gint angle2)
{
const GdkGCValuesMask mask = GDK_GC_FOREGROUND|GDK_GC_BACKGROUND;
HDC hdc;
int nXStartArc, nYStartArc, nXEndArc, nYEndArc;
GDK_NOTE (MISC, g_print ("gdk_draw_arc: %#x %d,%d,%d,%d %d %d\n",
(guint) GDK_DRAWABLE_IMPL_WIN32 (drawable)->handle,
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)
return;
hdc = gdk_win32_hdc_get (drawable, gc, mask);
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_win32_hdc_release (drawable, gc, mask);
}
static void
gdk_win32_draw_polygon (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
GdkPoint *points,
gint npoints)
{
GdkGCWin32 *gc_private = GDK_GC_WIN32 (gc);
const GdkGCValuesMask mask = GDK_GC_FOREGROUND|GDK_GC_BACKGROUND;
HDC hdc;
POINT *pts;
gboolean ok = TRUE;
int i;
GDK_NOTE (MISC, g_print ("gdk_win32_draw_polygon: %#x (%p) %d\n",
(guint) GDK_DRAWABLE_IMPL_WIN32 (drawable)->handle,
gc_private,
npoints));
if (npoints < 2)
return;
hdc = gdk_win32_hdc_get (drawable, gc, mask);
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_private->fill_style == GDK_OPAQUE_STIPPLED)
{
if (!BeginPath (hdc))
WIN32_GDI_FAILED ("BeginPath"), ok = FALSE;
if (ok)
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;
}
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_win32_hdc_release (drawable, gc, mask);
}
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->hfont)) == 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)
{
const GdkGCValuesMask mask = GDK_GC_FOREGROUND|GDK_GC_FONT;
wchar_t *wcstr, wc;
gint wlen;
gdk_draw_text_arg arg;
if (text_length == 0)
return;
g_assert (font->type == GDK_FONT_FONT || font->type == GDK_FONT_FONTSET);
arg.x = x;
arg.y = y;
arg.hdc = gdk_win32_hdc_get (drawable, gc, mask);
GDK_NOTE (MISC, g_print ("gdk_draw_text: %#x (%d,%d) \"%.*s\" (len %d)\n",
(guint) GDK_DRAWABLE_HANDLE (drawable),
x, y,
(text_length > 10 ? 10 : text_length),
text, text_length));
if (text_length == 1)
{
/* For single characters, don't try to interpret as UTF-8. */
wc = (guchar) text[0];
_gdk_wchar_text_handle (font, &wc, 1, gdk_draw_text_handler, &arg);
}
else
{
wcstr = g_new (wchar_t, text_length);
if ((wlen = _gdk_win32_nmbstowchar_ts (wcstr, text, text_length, text_length)) == -1)
g_warning ("gdk_win32_draw_text: _gdk_win32_nmbstowchar_ts failed");
else
_gdk_wchar_text_handle (font, wcstr, wlen, gdk_draw_text_handler, &arg);
g_free (wcstr);
}
gdk_win32_hdc_release (drawable, gc, mask);
}
static void
gdk_win32_draw_text_wc (GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const GdkWChar *text,
gint text_length)
{
const GdkGCValuesMask mask = GDK_GC_FOREGROUND|GDK_GC_FONT;
gint i;
wchar_t *wcstr;
gdk_draw_text_arg arg;
if (text_length == 0)
return;
g_assert (font->type == GDK_FONT_FONT || font->type == GDK_FONT_FONTSET);
arg.x = x;
arg.y = y;
arg.hdc = gdk_win32_hdc_get (drawable, gc, mask);
GDK_NOTE (MISC, g_print ("gdk_draw_text_wc: %#x (%d,%d) len: %d\n",
(guint) GDK_DRAWABLE_HANDLE (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_win32_hdc_release (drawable, gc, mask);
}
static void
gdk_win32_draw_drawable (GdkDrawable *drawable,
GdkGC *gc,
GdkPixmap *src,
gint xsrc,
gint ysrc,
gint xdest,
gint ydest,
gint width,
gint height)
{
HDC hdc;
HDC srcdc;
HGDIOBJ hgdiobj;
HRGN src_rgn, draw_rgn, outside_rgn;
RECT r;
gint src_width, src_height;
gboolean ok = TRUE;
GdkDrawableImplWin32 *impl;
HANDLE src_handle;
impl = GDK_DRAWABLE_IMPL_WIN32 (drawable);
if (GDK_IS_DRAWABLE_IMPL_WIN32(src))
src_handle = GDK_DRAWABLE_IMPL_WIN32 (src)->handle;
else
src_handle = GDK_DRAWABLE_HANDLE (src);
GDK_NOTE (MISC, g_print ("gdk_win32_draw_drawable: dest: %#x @+%d+%d"
" src: %#x %dx%d@+%d+%d\n",
(guint) impl->handle,
xdest, ydest,
(guint) src_handle,
width, height, xsrc, ysrc));
hdc = gdk_win32_hdc_get (drawable, gc, 0);
gdk_drawable_get_size (src, &src_width, &src_height);
src_rgn = CreateRectRgn (0, 0, src_width + 1, src_height + 1);
draw_rgn = CreateRectRgn (xsrc, ysrc, xsrc + width + 1, ysrc + height + 1);
#if 0 /* HB: I dont't see reason to do this ... */
if (GDK_IS_WINDOW_IMPL_WIN32 (drawable))
{
/* 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
*/
SetRectEmpty (&r);
outside_rgn = CreateRectRgnIndirect (&r);
if (CombineRgn (outside_rgn, draw_rgn, src_rgn, RGN_DIFF) != NULLREGION)
{
if (ERROR == OffsetRgn (outside_rgn, xdest, ydest))
WIN32_GDI_FAILED ("OffsetRgn");
GDK_NOTE (MISC, (GetRgnBox (outside_rgn, &r),
g_print ("...calling InvalidateRgn, "
"bbox: %ldx%ld@+%ld+%ld\n",
r.right - r.left - 1, r.bottom - r.top - 1,
r.left, r.top)));
if (!InvalidateRgn (impl->handle, outside_rgn, TRUE))
WIN32_GDI_FAILED ("InvalidateRgn");
}
if (!DeleteObject (outside_rgn))
WIN32_GDI_FAILED ("DeleteObject");
}
#endif
#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");
if (0 == GetRgnBox (draw_rgn, &r))
WIN32_GDI_FAILED("GetRgnBox");
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
if (!DeleteObject (src_rgn))
WIN32_GDI_FAILED ("DeleteObject");
if (!DeleteObject (draw_rgn))
WIN32_GDI_FAILED ("DeleteObject");
/* This function is called also to bitblt from a window.
*/
if (GDK_IS_PIXMAP_IMPL_WIN32 (src) || GDK_IS_PIXMAP(src))
{
if ((srcdc = CreateCompatibleDC (hdc)) == NULL)
WIN32_GDI_FAILED ("CreateCompatibleDC"), ok = FALSE;
if (ok && (hgdiobj = SelectObject (srcdc, src_handle)) == NULL)
WIN32_GDI_FAILED ("SelectObject"), ok = FALSE;
if (ok && !BitBlt (hdc, xdest, ydest, width, height,
srcdc, xsrc, ysrc, SRCCOPY))
WIN32_GDI_FAILED ("BitBlt");
if (ok && (SelectObject (srcdc, hgdiobj) == NULL))
WIN32_GDI_FAILED ("SelectObject");
if (srcdc != NULL && !DeleteDC (srcdc))
WIN32_GDI_FAILED ("DeleteDC");
}
else if (impl->handle == src_handle)
{
/* 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"), ok = FALSE;
if (ok && !InvalidateRgn (impl->handle, updateRgn, FALSE))
WIN32_GDI_FAILED ("InvalidateRgn"), ok = FALSE;
if (ok && !UpdateWindow (impl->handle))
WIN32_GDI_FAILED ("UpdateWindow");
if (!DeleteObject (updateRgn))
WIN32_GDI_FAILED ("DeleteObject");
}
else
{
if ((srcdc = GetDC (src_handle)) == NULL)
WIN32_GDI_FAILED ("GetDC"), ok = FALSE;
if (ok && !BitBlt (hdc, xdest, ydest, width, height,
srcdc, xsrc, ysrc, SRCCOPY))
WIN32_GDI_FAILED ("BitBlt");
if (ok && !ReleaseDC (src_handle, srcdc))
WIN32_GDI_FAILED ("ReleaseDC");
}
gdk_win32_hdc_release (drawable, gc, 0);
}
void
_gdk_win32_draw_tiles (GdkDrawable *drawable,
GdkGC *gc,
GdkPixmap *tile,
gint x_from,
gint y_from,
gint max_width,
gint max_height)
{
gint x = x_from, y = y_from;
gint tile_width, tile_height;
gint width, height;
gdk_drawable_get_size (drawable, &width, &height);
gdk_drawable_get_size (tile, &tile_width, &tile_height);
width = MIN (width, max_width);
height = MIN (height, max_height);
tile_width = MIN (tile_width, max_width);
tile_height = MIN (tile_height, max_height);
while (y < height)
{
x = x_from;
while (x < width)
{
gdk_win32_draw_drawable (drawable, gc, tile,
x % tile_width, /* xsrc */
y % tile_height, /* ysrc */
x, y, /* dest */
tile_width, tile_height);
x += tile_width;
}
y += tile_height;
}
}
static void
gdk_win32_draw_points (GdkDrawable *drawable,
GdkGC *gc,
GdkPoint *points,
gint npoints)
{
HDC hdc;
COLORREF fg;
GdkGCWin32 *gc_private = GDK_GC_WIN32 (gc);
GdkDrawableImplWin32 *impl = GDK_DRAWABLE_IMPL_WIN32 (drawable);
int i;
hdc = gdk_win32_hdc_get (drawable, gc, 0);
fg = _gdk_win32_colormap_color (impl->colormap, gc_private->foreground);
GDK_NOTE (MISC, g_print ("gdk_draw_points: %#x %dx%.06x\n",
(guint) GDK_DRAWABLE_IMPL_WIN32 (drawable)->handle,
npoints, (guint) fg));
for (i = 0; i < npoints; i++)
SetPixel (hdc, points[i].x, points[i].y, fg);
gdk_win32_hdc_release (drawable, gc, 0);
}
static void
gdk_win32_draw_segments (GdkDrawable *drawable,
GdkGC *gc,
GdkSegment *segs,
gint nsegs)
{
GdkGCWin32 *gc_private = GDK_GC_WIN32 (gc);
const GdkGCValuesMask mask = GDK_GC_FOREGROUND|GDK_GC_BACKGROUND;
HDC hdc;
gboolean ok = TRUE;
int i;
GDK_NOTE (MISC, g_print ("gdk_win32_draw_segments: %#x nsegs: %d\n",
(guint) GDK_DRAWABLE_IMPL_WIN32 (drawable)->handle, nsegs));
hdc = gdk_win32_hdc_get (drawable, gc, mask);
if (gc_private->fill_style == GDK_OPAQUE_STIPPLED)
{
if (!BeginPath (hdc))
WIN32_GDI_FAILED ("BeginPath"), ok = FALSE;
for (i = 0; ok && 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_private->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;
}
else
{
const gboolean maybe_patblt =
gc_private->rop2 == R2_COPYPEN &&
gc_private->pen_width <= 1 &&
(gc_private->pen_style & PS_STYLE_MASK) == PS_SOLID;
for (i = 0; ok && i < nsegs; i++)
{
/* PatBlt() is much faster than LineTo(), says
* jpe@archaeopteryx.com. Hmm. Use it if we have a solid
* colour pen, then we know that the brush is also solid and
* of the same colour.
*/
if (maybe_patblt && segs[i].x1 == segs[i].x2)
{
int y1, y2;
if (segs[i].y1 <= segs[i].y2)
y1 = segs[i].y1, y2 = segs[i].y2;
else
y1 = segs[i].y2, y2 = segs[i].y1;
if (!PatBlt (hdc, segs[i].x1, y1,
1, y2 - y1 + 1, PATCOPY))
WIN32_GDI_FAILED ("PatBlt"), ok = FALSE;
}
else if (maybe_patblt && segs[i].y1 == segs[i].y2)
{
int x1, x2;
if (segs[i].x1 <= segs[i].x2)
x1 = segs[i].x1, x2 = segs[i].x2;
else
x1 = segs[i].x2, x2 = segs[i].x1;
if (!PatBlt (hdc, x1, segs[i].y1,
x2 - x1 + 1, 1, PATCOPY))
WIN32_GDI_FAILED ("PatBlt"), ok = FALSE;
}
else
{
if (!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_private->pen_width <= 1)
if (!LineTo (hdc, segs[i].x2 + 1, segs[i].y2))
WIN32_GDI_FAILED ("LineTo"), ok = FALSE;
}
}
}
gdk_win32_hdc_release (drawable, gc, mask);
}
static void
gdk_win32_draw_lines (GdkDrawable *drawable,
GdkGC *gc,
GdkPoint *points,
gint npoints)
{
GdkGCWin32 *gc_private = GDK_GC_WIN32 (gc);
const GdkGCValuesMask mask = GDK_GC_FOREGROUND|GDK_GC_BACKGROUND;
HDC hdc;
POINT *pts;
int i;
gboolean ok = TRUE;
if (npoints < 2)
return;
hdc = gdk_win32_hdc_get (drawable, gc, mask);
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"), ok = FALSE;
g_free (pts);
/* Draw end pixel */
if (ok && gc_private->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");
}
gdk_win32_hdc_release (drawable, gc, mask);
}
static void
gdk_win32_draw_glyphs (GdkDrawable *drawable,
GdkGC *gc,
PangoFont *font,
gint x,
gint y,
PangoGlyphString *glyphs)
{
const GdkGCValuesMask mask = GDK_GC_FOREGROUND;
HDC hdc;
hdc = gdk_win32_hdc_get (drawable, gc, mask);
/* HB: Maybe there should be a GDK_GC_PANGO flag for hdc_get */
/* default write mode is transparent (leave background) */
if (SetBkMode (hdc, TRANSPARENT) == 0)
WIN32_GDI_FAILED ("SetBkMode");
if (GDI_ERROR == SetTextAlign (hdc, TA_LEFT|TA_BASELINE|TA_NOUPDATECP))
WIN32_GDI_FAILED ("SetTextAlign");
pango_win32_render (hdc, font, glyphs, x, y);
gdk_win32_hdc_release (drawable, gc, mask);
}
static void
gdk_win32_draw_image (GdkDrawable *drawable,
GdkGC *gc,
GdkImage *image,
gint xsrc,
gint ysrc,
gint xdest,
gint ydest,
gint width,
gint height)
{
GdkDrawableImplWin32 *impl = GDK_DRAWABLE_IMPL_WIN32 (drawable);
GdkImagePrivateWin32 *image_private = IMAGE_PRIVATE_DATA (image);
GdkColormapPrivateWin32 *colormap_private = (GdkColormapPrivateWin32 *) impl->colormap;
HDC hdc, memdc;
HGDIOBJ oldbitmap;
DIBSECTION ds;
static struct {
BITMAPINFOHEADER bmiHeader;
WORD bmiIndices[256];
} bmi;
static gboolean bmi_inited = FALSE;
gboolean ok = TRUE;
int i;
hdc = gdk_win32_hdc_get (drawable, gc, 0);
if (image->visual->type == GDK_VISUAL_PSEUDO_COLOR &&
colormap_private && colormap_private->xcolormap->rc_palette)
{
if (!bmi_inited)
{
for (i = 0; i < 256; i++)
bmi.bmiIndices[i] = i;
bmi_inited = TRUE;
}
if (GetObject (image_private->hbitmap, sizeof (DIBSECTION),
&ds) != sizeof (DIBSECTION))
WIN32_GDI_FAILED ("GetObject"), ok = FALSE;
#if 0
g_print("xdest = %d, ydest = %d, xsrc = %d, ysrc = %d, width = %d, height = %d\n",
xdest, ydest, xsrc, ysrc, width, height);
g_print("bmWidth = %d, bmHeight = %d, bmBitsPixel = %d, bmBits = %p\n",
ds.dsBm.bmWidth, ds.dsBm.bmHeight, ds.dsBm.bmBitsPixel, ds.dsBm.bmBits);
g_print("biWidth = %d, biHeight = %d, biBitCount = %d, biClrUsed = %d\n",
ds.dsBmih.biWidth, ds.dsBmih.biHeight, ds.dsBmih.biBitCount, ds.dsBmih.biClrUsed);
#endif
bmi.bmiHeader = ds.dsBmih;
/* I have spent hours on getting the parameters to
* SetDIBitsToDevice right. I wonder what drugs the guys in
* Redmond were on when they designed this API.
*/
if (ok && SetDIBitsToDevice (hdc,
xdest, ydest,
width, height,
xsrc, (-ds.dsBmih.biHeight)-height-ysrc,
0, -ds.dsBmih.biHeight,
ds.dsBm.bmBits,
(CONST BITMAPINFO *) &bmi,
DIB_PAL_COLORS) == 0)
WIN32_GDI_FAILED ("SetDIBitsToDevice");
}
else
{
if ((memdc = CreateCompatibleDC (hdc)) == NULL)
WIN32_GDI_FAILED ("CreateCompatibleDC"), ok = FALSE;
if (ok && (oldbitmap = SelectObject (memdc, image_private->hbitmap)) == NULL)
WIN32_GDI_FAILED ("SelectObject"), ok = FALSE;
if (ok && !BitBlt (hdc, xdest, ydest, width, height,
memdc, xsrc, ysrc, SRCCOPY))
WIN32_GDI_FAILED ("BitBlt");
if (oldbitmap != NULL && SelectObject (memdc, oldbitmap) == NULL)
WIN32_GDI_FAILED ("SelectObject");
if (memdc != NULL && !DeleteDC (memdc))
WIN32_GDI_FAILED ("DeleteDC");
}
gdk_win32_hdc_release (drawable, gc, 0);
}
static gint
gdk_win32_get_depth (GdkDrawable *drawable)
{
/* This is a bit bogus but I'm not sure the other way is better */
return gdk_drawable_get_depth (GDK_DRAWABLE_IMPL_WIN32 (drawable)->wrapper);
}
static GdkVisual*
gdk_win32_get_visual (GdkDrawable *drawable)
{
return gdk_drawable_get_visual (GDK_DRAWABLE_IMPL_WIN32 (drawable)->wrapper);
}
HWND
gdk_win32_drawable_get_handle (GdkDrawable *drawable)
{
return GDK_DRAWABLE_HANDLE(drawable);
}
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