gtk/gdk/win32/gdkdraw.c

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/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-1999. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "config.h"
#include <math.h>
#include <gdk/gdk.h>
#include "gdkprivate.h"
#ifndef M_TWOPI
#define M_TWOPI (2.0 * 3.14159265358979323846)
#endif
void
gdk_draw_point (GdkDrawable *drawable,
GdkGC *gc,
gint x,
gint y)
{
GdkWindowPrivate *drawable_private;
GdkGCPrivate *gc_private;
HDC hdc;
g_return_if_fail (drawable != NULL);
g_return_if_fail (gc != NULL);
drawable_private = (GdkWindowPrivate*) drawable;
if (drawable_private->destroyed)
return;
gc_private = (GdkGCPrivate*) gc;
hdc = gdk_gc_predraw (drawable_private, gc_private);
/* We use LineTo because SetPixel wants the COLORREF directly,
* and doesn't use the current pen, which is what we want.
*/
if (!MoveToEx (hdc, x, y, NULL))
g_warning ("gdk_draw_point: MoveToEx failed");
if (!LineTo (hdc, x + 1, y))
g_warning ("gdk_draw_point: LineTo failed");
gdk_gc_postdraw (drawable_private, gc_private);
}
void
gdk_draw_line (GdkDrawable *drawable,
GdkGC *gc,
gint x1,
gint y1,
gint x2,
gint y2)
{
GdkWindowPrivate *drawable_private;
GdkGCPrivate *gc_private;
HDC hdc;
g_return_if_fail (drawable != NULL);
g_return_if_fail (gc != NULL);
drawable_private = (GdkWindowPrivate*) drawable;
if (drawable_private->destroyed)
return;
gc_private = (GdkGCPrivate*) gc;
hdc = gdk_gc_predraw (drawable_private, gc_private);
GDK_NOTE (MISC, g_print ("gdk_draw_line: %#x (%d) +%d+%d..+%d+%d\n",
drawable_private->xwindow, gc_private,
x1, y1, x2, y2));
MoveToEx (hdc, x1, y1, NULL);
if (!LineTo (hdc, x2, y2))
g_warning ("gdk_draw_line: LineTo #1 failed");
/* 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 it hopefully
* doesn't matter?
*/
if (gc_private->pen_width == 1)
if (!LineTo (hdc, x2 + 1, y2))
g_warning ("gdk_draw_line: LineTo #2 failed");
gdk_gc_postdraw (drawable_private, gc_private);
}
void
gdk_draw_rectangle (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
gint x,
gint y,
gint width,
gint height)
{
GdkWindowPrivate *drawable_private;
GdkGCPrivate *gc_private;
HDC hdc;
HGDIOBJ oldpen, oldbrush;
g_return_if_fail (drawable != NULL);
g_return_if_fail (gc != NULL);
drawable_private = (GdkWindowPrivate*) drawable;
if (drawable_private->destroyed)
return;
gc_private = (GdkGCPrivate*) gc;
if (width == -1)
width = drawable_private->width;
if (height == -1)
height = drawable_private->height;
hdc = gdk_gc_predraw (drawable_private, gc_private);
GDK_NOTE (MISC, g_print ("gdk_draw_rectangle: %#x (%d) %s%dx%d@+%d+%d\n",
drawable_private->xwindow,
gc_private,
(filled ? "fill " : ""),
width, height, x, y));
#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 (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))
g_warning ("gdk_draw_rectangle: Rectangle failed");
if (filled)
SelectObject (hdc, oldpen);
else
SelectObject (hdc, oldbrush);
gdk_gc_postdraw (drawable_private, gc_private);
}
void
gdk_draw_arc (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
gint x,
gint y,
gint width,
gint height,
gint angle1,
gint angle2)
{
GdkWindowPrivate *drawable_private;
GdkGCPrivate *gc_private;
HDC hdc;
int nXStartArc, nYStartArc, nXEndArc, nYEndArc;
g_return_if_fail (drawable != NULL);
g_return_if_fail (gc != NULL);
drawable_private = (GdkWindowPrivate*) drawable;
if (drawable_private->destroyed)
return;
gc_private = (GdkGCPrivate*) gc;
if (width == -1)
width = drawable_private->width;
if (height == -1)
height = drawable_private->height;
hdc = gdk_gc_predraw (drawable_private, gc_private);
nXStartArc = x + width/2 + (int) (sin(angle1/64.*M_TWOPI)*width);
nYStartArc = y + height/2 + (int) (cos(angle1/64.*M_TWOPI)*height);
nXEndArc = x + width/2 + (int) (sin(angle2/64.*M_TWOPI)*width);
nYEndArc = y + height/2 + (int) (cos(angle2/64.*M_TWOPI)*height);
if (filled)
{
if (!Pie (hdc, x, y, x+width, y+height,
nXStartArc, nYStartArc, nXEndArc, nYEndArc))
g_warning ("gdk_draw_arc: Pie failed");
}
else
{
if (!Arc (hdc, x, y, x+width, y+height,
nXStartArc, nYStartArc, nXEndArc, nYEndArc))
g_warning ("gdk_draw_arc: Arc failed");
}
gdk_gc_postdraw (drawable_private, gc_private);
}
void
gdk_draw_polygon (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
GdkPoint *points,
gint npoints)
{
GdkWindowPrivate *drawable_private;
GdkGCPrivate *gc_private;
HDC hdc;
POINT *pts;
int i;
g_return_if_fail (drawable != NULL);
g_return_if_fail (gc != NULL);
drawable_private = (GdkWindowPrivate*) drawable;
if (drawable_private->destroyed)
return;
gc_private = (GdkGCPrivate*) gc;
hdc = gdk_gc_predraw (drawable_private, gc_private);
pts = g_malloc ((npoints+1) * sizeof (POINT));
GDK_NOTE (MISC, g_print ("gdk_draw_polygon: %#x (%d) %d\n",
drawable_private->xwindow, gc_private,
npoints));
for (i = 0; i < npoints; i++)
{
pts[i].x = points[i].x;
pts[i].y = points[i].y;
}
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))
g_warning ("gdk_draw_polygon: Polygon failed");
}
else
{
if (!Polyline (hdc, pts, npoints))
g_warning ("gdk_draw_polygon: Polyline failed");
}
g_free (pts);
gdk_gc_postdraw (drawable_private, gc_private);
}
/* gdk_draw_string
*/
void
gdk_draw_string (GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const gchar *string)
{
gdk_draw_text (drawable, font, gc, x, y, string, strlen (string));
}
/* gdk_draw_text
*
* Modified by Li-Da Lho to draw 16 bits and Multibyte strings
*
* Interface changed: add "GdkFont *font" to specify font or fontset explicitely
*/
void
gdk_draw_text (GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const gchar *text,
gint text_length)
{
GdkWindowPrivate *drawable_private;
GdkFontPrivate *font_private;
GdkGCPrivate *gc_private;
HDC hdc;
HFONT xfont;
HGDIOBJ oldfont;
g_return_if_fail (drawable != NULL);
g_return_if_fail (font != NULL);
g_return_if_fail (gc != NULL);
g_return_if_fail (text != NULL);
drawable_private = (GdkWindowPrivate*) drawable;
if (drawable_private->destroyed)
return;
gc_private = (GdkGCPrivate*) gc;
font_private = (GdkFontPrivate*) font;
if (font->type == GDK_FONT_FONT)
{
hdc = gdk_gc_predraw (drawable_private, gc_private);
xfont = (HFONT) font_private->xfont;
GDK_NOTE (MISC, g_print ("gdk_draw_text: %#x (%d) %#x "
"+%d+%d font: %#x \"%.*s\" length: %d\n",
drawable_private->xwindow,
gc_private, gc_private->xgc,
x, y, xfont,
(text_length > 10 ? 10 : text_length),
text, text_length));
if ((oldfont = SelectObject (hdc, xfont)) == NULL)
g_warning ("gdk_draw_text: SelectObject failed");
if (!TextOutA (hdc, x, y, text, text_length))
g_warning ("gdk_draw_text: TextOutA failed");
SelectObject (hdc, oldfont);
gdk_gc_postdraw (drawable_private, gc_private);
}
else
g_error ("undefined font type");
}
void
gdk_draw_text_wc (GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const GdkWChar *text,
gint text_length)
{
GdkWindowPrivate *drawable_private;
GdkFontPrivate *font_private;
GdkGCPrivate *gc_private;
gint i;
wchar_t *wcstr;
g_return_if_fail (drawable != NULL);
g_return_if_fail (font != NULL);
g_return_if_fail (gc != NULL);
g_return_if_fail (text != NULL);
drawable_private = (GdkWindowPrivate*) drawable;
if (drawable_private->destroyed)
return;
gc_private = (GdkGCPrivate*) gc;
font_private = (GdkFontPrivate*) font;
if (font->type == GDK_FONT_FONT)
{
HDC hdc;
HFONT xfont;
HGDIOBJ oldfont;
hdc = gdk_gc_predraw (drawable_private, gc_private);
xfont = (HFONT) font_private->xfont;
GDK_NOTE (MISC, g_print ("gdk_draw_text_wc: %#x (%d) %#x "
"+%d+%d font: %#x length: %d\n",
drawable_private->xwindow,
gc_private, gc_private->xgc,
x, y, xfont,
text_length));
if ((oldfont = SelectObject (hdc, xfont)) == NULL)
g_warning ("gdk_draw_text: SelectObject failed");
wcstr = g_new (wchar_t, text_length);
for (i = 0; i < text_length; i++)
wcstr[i] = text[i];
if (!TextOutW (hdc, x, y, wcstr, text_length))
g_warning ("gdk_draw_text: TextOutW failed");
g_free (wcstr);
SelectObject (hdc, oldfont);
gdk_gc_postdraw (drawable_private, gc_private);
}
else
g_error ("undefined font type");
}
void
gdk_draw_pixmap (GdkDrawable *drawable,
GdkGC *gc,
GdkPixmap *src,
gint xsrc,
gint ysrc,
gint xdest,
gint ydest,
gint width,
gint height)
{
GdkWindowPrivate *drawable_private;
GdkWindowPrivate *src_private;
GdkGCPrivate *gc_private;
HDC hdc;
HDC srcdc;
HGDIOBJ hgdiobj;
g_return_if_fail (drawable != NULL);
g_return_if_fail (src != NULL);
g_return_if_fail (gc != NULL);
drawable_private = (GdkWindowPrivate*) drawable;
src_private = (GdkWindowPrivate*) src;
if (drawable_private->destroyed || src_private->destroyed)
return;
gc_private = (GdkGCPrivate*) gc;
if (width == -1)
width = src_private->width;
if (height == -1)
height = src_private->height;
hdc = gdk_gc_predraw (drawable_private, gc_private);
GDK_NOTE (MISC, g_print ("gdk_draw_pixmap: dest: %#x destdc: (%d) %#x "
"src: %#x %dx%d@+%d+%d\n",
drawable_private->xwindow, gc_private, hdc,
src_private->xwindow,
width, height, xdest, ydest));
/* Strangely enough, this function is called also to bitblt
* from a window.
*/
if (src_private->window_type == GDK_WINDOW_PIXMAP)
{
if ((srcdc = CreateCompatibleDC (hdc)) == NULL)
g_warning ("gdk_draw_pixmap: CreateCompatibleDC failed");
if ((hgdiobj = SelectObject (srcdc, src_private->xwindow)) == NULL)
g_warning ("gdk_draw_pixmap: SelectObject #1 failed");
if (!BitBlt (hdc, xdest, ydest, width, height,
srcdc, xsrc, ysrc, SRCCOPY))
g_warning ("gdk_draw_pixmap: BitBlt failed");
if ((SelectObject (srcdc, hgdiobj) == NULL))
g_warning ("gdk_draw_pixmap: SelectObject #2 failed");
if (!DeleteDC (srcdc))
g_warning ("gdk_draw_pixmap: DeleteDC failed");
}
else
{
if ((srcdc = GetDC (src_private->xwindow)) == NULL)
g_warning ("gdk_draw_pixmap: GetDC failed");
if (!BitBlt (hdc, xdest, ydest, width, height,
srcdc, xsrc, ysrc, SRCCOPY))
g_warning ("gdk_draw_pixmap: BitBlt failed");
ReleaseDC (src_private->xwindow, srcdc);
}
gdk_gc_postdraw (drawable_private, gc_private);
}
void
gdk_draw_image (GdkDrawable *drawable,
GdkGC *gc,
GdkImage *image,
gint xsrc,
gint ysrc,
gint xdest,
gint ydest,
gint width,
gint height)
{
GdkImagePrivate *image_private;
g_return_if_fail (drawable != NULL);
g_return_if_fail (image != NULL);
g_return_if_fail (gc != NULL);
image_private = (GdkImagePrivate*) image;
g_return_if_fail (image_private->image_put != NULL);
if (width == -1)
width = image->width;
if (height == -1)
height = image->height;
(* image_private->image_put) (drawable, gc, image, xsrc, ysrc,
xdest, ydest, width, height);
}
void
gdk_draw_points (GdkDrawable *drawable,
GdkGC *gc,
GdkPoint *points,
gint npoints)
{
GdkWindowPrivate *drawable_private;
GdkGCPrivate *gc_private;
HDC hdc;
int i;
g_return_if_fail (drawable != NULL);
g_return_if_fail ((points != NULL) && (npoints > 0));
g_return_if_fail (gc != NULL);
drawable_private = (GdkWindowPrivate*) drawable;
if (drawable_private->destroyed)
return;
gc_private = (GdkGCPrivate*) gc;
hdc = gdk_gc_predraw (drawable_private, gc_private);
GDK_NOTE (MISC, g_print ("gdk_draw_points: %#x destdc: (%d) %#x "
"npoints: %d\n",
drawable_private->xwindow, gc_private, hdc,
npoints));
for (i = 0; i < npoints; i++)
{
if (!MoveToEx (hdc, points[i].x, points[i].y, NULL))
g_warning ("gdk_draw_points: MoveToEx failed");
if (!LineTo (hdc, points[i].x + 1, points[i].y))
g_warning ("gdk_draw_points: LineTo failed");
}
gdk_gc_postdraw (drawable_private, gc_private);
}
void
gdk_draw_segments (GdkDrawable *drawable,
GdkGC *gc,
GdkSegment *segs,
gint nsegs)
{
GdkWindowPrivate *drawable_private;
GdkGCPrivate *gc_private;
HDC hdc;
int i;
if (nsegs <= 0)
return;
g_return_if_fail (drawable != NULL);
g_return_if_fail (segs != NULL);
g_return_if_fail (gc != NULL);
drawable_private = (GdkWindowPrivate*) drawable;
if (drawable_private->destroyed)
return;
gc_private = (GdkGCPrivate*) gc;
hdc = gdk_gc_predraw (drawable_private, gc_private);
for (i = 0; i < nsegs; i++)
{
if (!MoveToEx (hdc, segs[i].x1, segs[i].y1, NULL))
g_warning ("gdk_draw_segments: MoveToEx failed");
if (!LineTo (hdc, segs[i].x2, segs[i].y2))
g_warning ("gdk_draw_segments: LineTo #1 failed");
/* Draw end pixel */
if (gc_private->pen_width == 1)
if (!LineTo (hdc, segs[i].x2 + 1, segs[i].y2))
g_warning ("gdk_draw_segments: LineTo #2 failed");
}
gdk_gc_postdraw (drawable_private, gc_private);
}
void
gdk_draw_lines (GdkDrawable *drawable,
GdkGC *gc,
GdkPoint *points,
gint npoints)
{
GdkWindowPrivate *drawable_private;
GdkGCPrivate *gc_private;
HDC hdc;
POINT *pts;
int i;
if (npoints <= 0)
return;
g_return_if_fail (drawable != NULL);
g_return_if_fail (points != NULL);
g_return_if_fail (gc != NULL);
drawable_private = (GdkWindowPrivate*) drawable;
gc_private = (GdkGCPrivate*) gc;
hdc = gdk_gc_predraw (drawable_private, gc_private);
#if 1
pts = g_malloc (npoints * sizeof (POINT));
for (i = 0; i < npoints; i++)
{
pts[i].x = points[i].x;
pts[i].y = points[i].y;
}
if (!Polyline (hdc, pts, npoints))
g_warning ("gdk_draw_lines: Polyline failed");
g_free (pts);
/* Draw end pixel */
if (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))
g_warning ("gdk_draw_lines: LineTo failed");
}
#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))
g_warning ("gdk_draw_lines: LineTo #1 failed");
/* Draw end pixel */
if (gc_private->pen_width == 1)
if (!LineTo (hdc, points[npoints-1].x + 1, points[npoints-1].y))
g_warning ("gdk_draw_lines: LineTo #2 failed");
#endif
gdk_gc_postdraw (drawable_private, gc_private);
}