wine/dlls/gdiplus/graphics.c
2007-06-13 11:21:42 +02:00

116 lines
2.9 KiB
C

/*
* Copyright (C) 2007 Google (Evan Stade)
*
* 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 2.1 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include <math.h>
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "wingdi.h"
#include "gdiplus.h"
#include "gdiplus_private.h"
#include "wine/debug.h"
GpStatus WINGDIPAPI GdipCreateFromHDC(HDC hdc, GpGraphics **graphics)
{
if(hdc == NULL)
return OutOfMemory;
if(graphics == NULL)
return InvalidParameter;
*graphics = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY,
sizeof(GpGraphics));
(*graphics)->hdc = hdc;
(*graphics)->hwnd = NULL;
return Ok;
}
GpStatus WINGDIPAPI GdipCreateFromHWND(HWND hwnd, GpGraphics **graphics)
{
GpStatus ret;
if((ret = GdipCreateFromHDC(GetDC(hwnd), graphics)) != Ok)
return ret;
(*graphics)->hwnd = hwnd;
return Ok;
}
GpStatus WINGDIPAPI GdipDeleteGraphics(GpGraphics *graphics)
{
if(!graphics) return InvalidParameter;
if(graphics->hwnd)
ReleaseDC(graphics->hwnd, graphics->hdc);
HeapFree(GetProcessHeap(), 0, graphics);
return Ok;
}
GpStatus WINGDIPAPI GdipDrawLineI(GpGraphics *graphics, GpPen *pen, INT x1,
INT y1, INT x2, INT y2)
{
HGDIOBJ old_obj;
if(!pen || !graphics)
return InvalidParameter;
old_obj = SelectObject(graphics->hdc, pen->gdipen);
MoveToEx(graphics->hdc, x1, y1, NULL);
LineTo(graphics->hdc, x2, y2);
SelectObject(graphics->hdc, old_obj);
return Ok;
}
GpStatus WINGDIPAPI GdipDrawRectangleI(GpGraphics *graphics, GpPen *pen, INT x,
INT y, INT width, INT height)
{
LOGBRUSH lb;
HPEN hpen;
HGDIOBJ old_obj;
if(!pen || !graphics)
return InvalidParameter;
lb.lbStyle = BS_SOLID;
lb.lbColor = pen->color;
lb.lbHatch = 0;
hpen = ExtCreatePen(PS_GEOMETRIC | PS_ENDCAP_SQUARE, (INT) pen->width,
&lb, 0, NULL);
old_obj = SelectObject(graphics->hdc, hpen);
/* assume pen aligment centered */
MoveToEx(graphics->hdc, x, y, NULL);
LineTo(graphics->hdc, x+width, y);
LineTo(graphics->hdc, x+width, y+height);
LineTo(graphics->hdc, x, y+height);
LineTo(graphics->hdc, x, y);
SelectObject(graphics->hdc, old_obj);
DeleteObject(hpen);
return Ok;
}