Sweden-Number/dlls/gdi32/tests/mapping.c

163 lines
5.9 KiB
C

/*
* Unit tests for mapping functions
*
* Copyright (c) 2005 Huw Davies
*
* 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 <assert.h>
#include <stdio.h>
#include <math.h>
#include "wine/test.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "winerror.h"
static void test_modify_world_transform(void)
{
HDC hdc = GetDC(0);
int ret;
ret = SetGraphicsMode(hdc, GM_ADVANCED);
if(!ret) /* running in win9x so quit */
{
ReleaseDC(0, hdc);
return;
}
ret = ModifyWorldTransform(hdc, NULL, MWT_IDENTITY);
ok(ret, "ret = %d\n", ret);
ret = ModifyWorldTransform(hdc, NULL, MWT_LEFTMULTIPLY);
ok(!ret, "ret = %d\n", ret);
ret = ModifyWorldTransform(hdc, NULL, MWT_RIGHTMULTIPLY);
ok(!ret, "ret = %d\n", ret);
ReleaseDC(0, hdc);
}
#define rough_match(got, expected) ((got >= expected - 2) && (got <= expected + 2))
static void test_SetWindowExt(HDC hdc, LONG cx, LONG cy, LONG expected_vp_cx, LONG expected_vp_cy)
{
SIZE windowExt, viewportExt;
POINT windowOrg, windowOrgAfter, viewportOrg, viewportOrgAfter;
GetWindowOrgEx(hdc, &windowOrg);
GetViewportOrgEx(hdc, &viewportOrg);
SetWindowExtEx(hdc, cx, cy, NULL);
GetWindowExtEx(hdc, &windowExt);
ok(windowExt.cx == cx && windowExt.cy == cy,
"Window extension: Expected %dx%d, got %dx%d\n",
cx, cy, windowExt.cx, windowExt.cy);
GetViewportExtEx(hdc, &viewportExt);
ok(rough_match(viewportExt.cx, expected_vp_cx) && rough_match(viewportExt.cy, expected_vp_cy),
"Viewport extents have not been properly adjusted: Expected %dx%d, got %dx%d\n",
expected_vp_cx, expected_vp_cy, viewportExt.cx, viewportExt.cy);
GetWindowOrgEx(hdc, &windowOrgAfter);
ok(windowOrg.x == windowOrgAfter.x && windowOrg.y == windowOrgAfter.y,
"Window origin changed from (%d,%d) to (%d,%d)\n",
windowOrg.x, windowOrg.y, windowOrgAfter.x, windowOrgAfter.y);
GetViewportOrgEx(hdc, &viewportOrgAfter);
ok(viewportOrg.x == viewportOrgAfter.x && viewportOrg.y == viewportOrgAfter.y,
"Viewport origin changed from (%d,%d) to (%d,%d)\n",
viewportOrg.x, viewportOrg.y, viewportOrgAfter.x, viewportOrgAfter.y);
}
static void test_SetViewportExt(HDC hdc, LONG cx, LONG cy, LONG expected_vp_cx, LONG expected_vp_cy)
{
SIZE windowExt, windowExtAfter, viewportExt;
POINT windowOrg, windowOrgAfter, viewportOrg, viewportOrgAfter;
GetWindowOrgEx(hdc, &windowOrg);
GetViewportOrgEx(hdc, &viewportOrg);
GetWindowExtEx(hdc, &windowExt);
SetViewportExtEx(hdc, cx, cy, NULL);
GetViewportExtEx(hdc, &viewportExt);
ok(rough_match(viewportExt.cx, expected_vp_cx) && rough_match(viewportExt.cy, expected_vp_cy),
"Viewport extents have not been properly adjusted: Expected %dx%d, got %dx%d\n",
expected_vp_cx, expected_vp_cy, viewportExt.cx, viewportExt.cy);
GetWindowExtEx(hdc, &windowExtAfter);
ok(windowExt.cx == windowExtAfter.cx && windowExt.cy == windowExtAfter.cy,
"Window extension changed from %dx%d to %dx%d\n",
windowExt.cx, windowExt.cy, windowExtAfter.cx, windowExtAfter.cy);
GetWindowOrgEx(hdc, &windowOrgAfter);
ok(windowOrg.x == windowOrgAfter.x && windowOrg.y == windowOrgAfter.y,
"Window origin changed from (%d,%d) to (%d,%d)\n",
windowOrg.x, windowOrg.y, windowOrgAfter.x, windowOrgAfter.y);
GetViewportOrgEx(hdc, &viewportOrgAfter);
ok(viewportOrg.x == viewportOrgAfter.x && viewportOrg.y == viewportOrgAfter.y,
"Viewport origin changed from (%d,%d) to (%d,%d)\n",
viewportOrg.x, viewportOrg.y, viewportOrgAfter.x, viewportOrgAfter.y);
}
static void test_isotropic_mapping(void)
{
SIZE win, vp;
HDC hdc = GetDC(0);
SetMapMode(hdc, MM_ISOTROPIC);
/* MM_ISOTROPIC is set up like MM_LOMETRIC.
Initial values after SetMapMode():
(1 inch = 25.4 mm)
Windows 9x: Windows NT:
Window Ext: 254 x -254 HORZSIZE*10 x VERTSIZE*10
Viewport Ext: LOGPIXELSX x LOGPIXELSY HORZRES x -VERTRES
To test without rounding errors, we have to use multiples of
these values!
*/
GetWindowExtEx(hdc, &win);
GetViewportExtEx(hdc, &vp);
test_SetViewportExt(hdc, 10 * vp.cx, 10 * vp.cy, 10 * vp.cx, 10 * vp.cy);
test_SetWindowExt(hdc, win.cx, win.cy, 10 * vp.cx, 10 * vp.cy);
test_SetWindowExt(hdc, 2 * win.cx, win.cy, 10 * vp.cx, 5 * vp.cy);
test_SetWindowExt(hdc, win.cx, win.cy, 5 * vp.cx, 5 * vp.cy);
test_SetViewportExt(hdc, 4 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
test_SetViewportExt(hdc, vp.cx, 2 * vp.cy, vp.cx, vp.cy);
test_SetViewportExt(hdc, 2 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
test_SetViewportExt(hdc, 4 * vp.cx, 2 * vp.cy, 2 * vp.cx, 2 * vp.cy);
test_SetWindowExt(hdc, 4 * win.cx, 2 * win.cy, 2 * vp.cx, vp.cy);
test_SetViewportExt(hdc, -2 * vp.cx, -4 * vp.cy, -2 * vp.cx, -vp.cy);
test_SetViewportExt(hdc, -2 * vp.cx, -1 * vp.cy, -2 * vp.cx, -vp.cy);
test_SetWindowExt(hdc, -4 * win.cx, -2 * win.cy, -2 * vp.cx, -vp.cy);
test_SetWindowExt(hdc, 4 * win.cx, -4 * win.cy, -vp.cx, -vp.cy);
ReleaseDC(0, hdc);
}
START_TEST(mapping)
{
test_modify_world_transform();
test_isotropic_mapping();
}