wxWidgets/tests/geometry/region.cpp
Vadim Zeitlin 3f66f6a5b3 Remove all lines containing cvs/svn "$Id$" keyword.
This keyword is not expanded by Git which means it's not replaced with the
correct revision value in the releases made using git-based scripts and it's
confusing to have lines with unexpanded "$Id$" in the released files. As
expanding them with Git is not that simple (it could be done with git archive
and export-subst attribute) and there are not many benefits in having them in
the first place, just remove all these lines.

If nothing else, this will make an eventual transition to Git simpler.

Closes #14487.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74602 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2013-07-26 16:02:46 +00:00

140 lines
3.6 KiB
C++

///////////////////////////////////////////////////////////////////////////////
// Name: tests/geometry/region.cpp
// Purpose: wxRegion unit test
// Author: Vadim Zeitlin
// Created: 2011-10-12
// Copyright: (c) 2011 Vadim Zeitlin <vadim@wxwidgets.org>
///////////////////////////////////////////////////////////////////////////////
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#include "testprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/region.h"
#endif // WX_PRECOMP
#include "wx/iosfwrap.h"
// ----------------------------------------------------------------------------
// helper functions
// ----------------------------------------------------------------------------
namespace
{
// This function could be easily added to wxRegionIterator itself, where it
// could be implemented far more efficiently as all major platforms store the
// number of rectangles anyhow, but as we only use it for debugging purposes,
// just keep it here for now.
unsigned GetRectsCount(const wxRegion& rgn)
{
unsigned count = 0;
for ( wxRegionIterator iter(rgn); iter.HaveRects(); ++iter )
count++;
return count;
}
} // anonymous namespace
// this operator is needed to use CPPUNIT_ASSERT_EQUAL with wxRegions
std::ostream& operator<<(std::ostream& os, const wxRegion& rgn)
{
wxRect r = rgn.GetBox();
os << "# rects = " << GetRectsCount(rgn)
<< "; bounding box {"
<< r.x << ", " << r.y << ", " << r.width << ", " << r.height
<< "}";
return os;
}
// ----------------------------------------------------------------------------
// test class
// ----------------------------------------------------------------------------
class RegionTestCase : public CppUnit::TestCase
{
public:
RegionTestCase() { }
private:
CPPUNIT_TEST_SUITE( RegionTestCase );
CPPUNIT_TEST( Validity );
CPPUNIT_TEST( Intersect );
CPPUNIT_TEST_SUITE_END();
void Validity();
void Intersect();
wxDECLARE_NO_COPY_CLASS(RegionTestCase);
};
// register in the unnamed registry so that these tests are run by default
CPPUNIT_TEST_SUITE_REGISTRATION( RegionTestCase );
// also include in its own registry so that these tests can be run alone
CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( RegionTestCase, "RegionTestCase" );
void RegionTestCase::Validity()
{
wxRegion r;
CPPUNIT_ASSERT_MESSAGE
(
"Default constructed region must be invalid",
!r.IsOk()
);
CPPUNIT_ASSERT_MESSAGE
(
"Invalid region should be empty",
r.IsEmpty()
);
// Offsetting an invalid region doesn't make sense.
WX_ASSERT_FAILS_WITH_ASSERT( r.Offset(1, 1) );
CPPUNIT_ASSERT_MESSAGE
(
"Combining with a valid region should create a valid region",
r.Union(0, 0, 10, 10)
);
CPPUNIT_ASSERT_EQUAL_MESSAGE
(
"Union() with invalid region should give the same region",
wxRegion(0, 0, 10, 10),
r
);
}
void RegionTestCase::Intersect()
{
const wxPoint points1[] = {
wxPoint(310, 392),
wxPoint(270, 392),
wxPoint(270, 421),
wxPoint(310, 421)
};
wxRegion region1(WXSIZEOF(points1), points1);
const wxPoint points2[] = {
wxPoint(54, 104),
wxPoint(85, 82),
wxPoint(68, 58),
wxPoint(37, 80)
};
wxRegion region2(4,points2);
CPPUNIT_ASSERT( region1.Intersect(region2) );
CPPUNIT_ASSERT( region1.IsEmpty() );
}