reactos/rostests/apitests/gdi32/ExcludeClipRect.c
Timo Kreuzer ec2f154c80 [GDI32_APITEST]
- Add tests for OffsetClipRgn
- Imporve ExcludeClipRect tests

svn path=/trunk/; revision=64370
2014-09-28 18:24:58 +00:00

107 lines
3.8 KiB
C

/*
* PROJECT: ReactOS api tests
* LICENSE: GPL - See COPYING in the top level directory
* PURPOSE: Test for ExcludeClipRect
* PROGRAMMERS: Timo Kreuzer
*/
#include <apitest.h>
#include <wingdi.h>
#include <winuser.h>
#define CLIPRGN 1
#define ok_rect(_prc, _left, _top, _right, _bottom) \
ok_int((_prc)->left, _left); \
ok_int((_prc)->top, _top); \
ok_int((_prc)->right, _right); \
ok_int((_prc)->bottom, _bottom); \
void Test_ExcludeClipRect()
{
HDC hdc;
HRGN hrgn, hrgn2;
hdc = CreateCompatibleDC(NULL);
ok(hdc != 0, "CreateCompatibleDC failed, skipping tests.\n");
if (!hdc) return;
hrgn2 = CreateRectRgn(0, 0, 0, 0);
/* Test NULL DC */
SetLastError(0x12345);
ok_int(ExcludeClipRect(NULL, 0, 0, 0, 0), ERROR);
ok_int(GetLastError(), ERROR_INVALID_HANDLE);
/* Test invalid DC */
SetLastError(0x12345);
ok_int(ExcludeClipRect((HDC)(ULONG_PTR)0x12345, 0, 0, 0, 0), ERROR);
ok_int(GetLastError(), ERROR_INVALID_HANDLE);
SetLastError(0x12345);
/* Set a clip region */
hrgn = CreateRectRgn(10, 10, 20, 30);
ok_int(SelectClipRgn(hdc, hrgn), NULLREGION); // yeah... it's NULLREGION
ok_int(GetRandomRgn(hdc, hrgn2, CLIPRGN), 1);
ok_int(EqualRgn(hrgn, hrgn2), TRUE); // but in fact it's the region we set
/* Exclude something outside of the clip region */
ok_int(ExcludeClipRect(hdc, 0, 0, 1, 1), COMPLEXREGION); // in reality it's a rect region
ok_int(GetRandomRgn(hdc, hrgn2, CLIPRGN), 1);
ok_int(EqualRgn(hrgn, hrgn2), TRUE);
/* Exclude something on one side of the clip rect */
ok_int(ExcludeClipRect(hdc, 0, 0, 13, 50), COMPLEXREGION);
ok_int(GetRandomRgn(hdc, hrgn2, CLIPRGN), 1);
ok_int(CombineRgn(hrgn, hrgn2, NULL, RGN_COPY), SIMPLEREGION);
/* Exclude something on the edge of the clip rect */
ok_int(ExcludeClipRect(hdc, 0, 0, 15, 15), COMPLEXREGION);
ok_int(GetRandomRgn(hdc, hrgn2, CLIPRGN), 1);
ok_int(CombineRgn(hrgn, hrgn2, NULL, RGN_COPY), COMPLEXREGION);
/* Exclude everything left */
ok_int(ExcludeClipRect(hdc, 0, 0, 100, 100), NULLREGION);
ok_int(GetRandomRgn(hdc, hrgn2, CLIPRGN), 1);
ok_int(CombineRgn(hrgn, hrgn2, NULL, RGN_COPY), NULLREGION);
/* Reset the clip region */
ok_int(SelectClipRgn(hdc, NULL), SIMPLEREGION); // makes sense, it's actually the whole region
ok_int(GetRandomRgn(hdc, hrgn2, CLIPRGN), 0); // return value says region is NULL
ok_int(ExcludeClipRect(hdc, 0, 0, 1, 1), NULLREGION);
ok_int(GetRandomRgn(hdc, hrgn2, CLIPRGN), 1); // but now we have a region
ok_int(CombineRgn(hrgn, hrgn2, NULL, RGN_COPY), NULLREGION); // but it's a NULLREGION (aka empty)?
/* Test negative rect */
ok_int(SelectClipRgn(hdc, NULL), SIMPLEREGION);
ok_int(ExcludeClipRect(hdc, -10, -10, 0, 0), COMPLEXREGION); // this time it's a complex region?
ok_int(GetRandomRgn(hdc, hrgn2, CLIPRGN), 1);
hrgn = CreateRectRgn(0, 0, 1, 1);
ok_int(CombineRgn(hrgn2, hrgn2, hrgn, RGN_XOR), NULLREGION);
/* Test rect with high coordinates */
ok_int(SelectClipRgn(hdc, NULL), SIMPLEREGION);
ok_int(ExcludeClipRect(hdc, 100000, 100000, 100010, 100010), COMPLEXREGION); // this time it's a complex region?
ok_int(GetRandomRgn(hdc, hrgn2, CLIPRGN), 1);
hrgn = CreateRectRgn(0, 0, 1, 1);
ok_int(EqualRgn(hrgn, hrgn2), TRUE);
DeleteObject(hrgn);
/* Test reversed rect negative, but still above 0 */
ok_int(SelectClipRgn(hdc, NULL), SIMPLEREGION);
ok_int(ExcludeClipRect(hdc, 1, 1, -10, -20), NULLREGION);
ok_int(GetRandomRgn(hdc, hrgn2, CLIPRGN), 1);
hrgn = CreateRectRgn(0, 0, 0, 0);
ok_int(CombineRgn(hrgn, hrgn2, NULL, RGN_COPY), NULLREGION);
ok_int(GetLastError(), 0x12345);
}
START_TEST(ExcludeClipRect)
{
Test_ExcludeClipRect();
}