e70fc11ef1
Drop the legacy CppUnit testing framework used for the unit tests. Replacing it with Catch has the advantage of not requiring CppUnit libraries to be installed on the system in order to be able to run tests (Catch is header-only and a copy of it is now included in the main repository itself) and, in the future, of being able to write the tests in a much more natural way. For now, however, avoid changing the existing tests code as much as [reasonably] possible to avoid introducing bugs in them and provide the CppUnit compatibility macros in the new wx/catch_cppunit.h header which allow to preserve the 99% of the existing code unchanged. Some of the required changes are: - Decompose asserts using "a && b" conditions into multiple asserts checking "a" and "b" independently. This would have been better even with CppUnit (to know which part of condition exactly failed) and is required with Catch. - Use extra parentheses around such conditions when they can't be easily decomposed in the arrays test, due to the use of macros. This is not ideal from the point of view of messages given when the tests fail but will do for now. - Rewrite asserts using "a || b" as a combination of condition checks and assert macros. Again, this is better anyhow, and is required with Catch. Incidentally, this allowed to fix a bug in the "exec" unit test which didn't leave enough time for the new process to be launched before trying to kill it. - Remove multiple CPPUNIT_TEST_SUITE_NAMED_REGISTRATION() macros, our emulation of this macro can be used only once. - Provide string conversions using Catch-specific StringMaker for a couple of types. - Replace custom wxImage comparison with a Catch-specific matcher class. - Remove most of test running logic from test.cpp, in particular don't parse command line ourselves any longer but use Catch built-in command line parser. This is a source of a minor regression: previously, both "Foo" and "FooTestCase" could be used as the name of the test to run, but now only the latter is accepted.
541 lines
16 KiB
C++
541 lines
16 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: tests/graphics/affinetransform.cpp
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// Purpose: Unit test for transformations implemented for wxAffineMatrix2D
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// Author: Catalin Raceanu
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// Created: 2011-04-14
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// Copyright: (c) 2011 wxWidgets development team
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///////////////////////////////////////////////////////////////////////////////
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#include "testprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#include "wx/graphics.h"
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#include "wx/dcmemory.h"
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#include "wx/affinematrix2d.h"
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#include "wx/math.h"
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#if wxUSE_GRAPHICS_CONTEXT
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#include "wx/dcgraph.h"
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#endif // wxUSE_GRAPHICS_CONTEXT
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#include "testimage.h"
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// ----------------------------------------------------------------------------
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// Affine transform test class
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// ----------------------------------------------------------------------------
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class AffineTransformTestCase : public CppUnit::TestCase
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{
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public:
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AffineTransformTestCase() {}
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private:
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CPPUNIT_TEST_SUITE( AffineTransformTestCase );
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CPPUNIT_TEST( InvertMatrix );
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CPPUNIT_TEST( Concat );
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CPPUNIT_TEST_SUITE_END();
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void InvertMatrix();
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void Concat();
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wxDECLARE_NO_COPY_CLASS(AffineTransformTestCase);
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};
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// register in the unnamed registry so that these tests are run by default
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CPPUNIT_TEST_SUITE_REGISTRATION( AffineTransformTestCase );
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// also include in its own registry so that these tests can be run alone
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CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( AffineTransformTestCase, "AffineTransformTestCase" );
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void AffineTransformTestCase::InvertMatrix()
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{
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wxAffineMatrix2D matrix1;
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matrix1.Set(wxMatrix2D(2, 1, 1, 1), wxPoint2DDouble(1, 1));
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wxAffineMatrix2D matrix2(matrix1);
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matrix2.Invert();
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wxMatrix2D m;
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wxPoint2DDouble p;
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matrix2.Get(&m, &p);
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CPPUNIT_ASSERT_EQUAL( 1, (int)m.m_11 );
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CPPUNIT_ASSERT_EQUAL( -1, (int)m.m_12 );
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CPPUNIT_ASSERT_EQUAL( -1, (int)m.m_21 );
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CPPUNIT_ASSERT_EQUAL( 2, (int)m.m_22 );
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CPPUNIT_ASSERT_EQUAL( 0, (int)p.m_x );
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CPPUNIT_ASSERT_EQUAL( -1, (int)p.m_y );
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matrix2.Concat(matrix1);
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CPPUNIT_ASSERT( matrix2.IsIdentity() );
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}
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void AffineTransformTestCase::Concat()
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{
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wxAffineMatrix2D m1;
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m1.Set(wxMatrix2D(0.9, 0.4, -0.4, 0.9), wxPoint2DDouble(0.0, 0.0));
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wxAffineMatrix2D m2;
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m2.Set(wxMatrix2D(1.0, 0.0, 0.0, 1.0), wxPoint2DDouble(3.0, 5.0));
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m1.Concat(m2);
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wxMatrix2D m;
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wxPoint2DDouble p;
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m1.Get(&m, &p);
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const double delta = 0.01;
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CPPUNIT_ASSERT_DOUBLES_EQUAL( 0.9, m.m_11, delta );
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CPPUNIT_ASSERT_DOUBLES_EQUAL( 0.4, m.m_12, delta );
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CPPUNIT_ASSERT_DOUBLES_EQUAL( -0.4, m.m_21, delta );
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CPPUNIT_ASSERT_DOUBLES_EQUAL( 0.9, m.m_22, delta );
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CPPUNIT_ASSERT_DOUBLES_EQUAL( 0.7, p.m_x, delta );
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CPPUNIT_ASSERT_DOUBLES_EQUAL( 5.7, p.m_y, delta );
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}
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#if wxUSE_DC_TRANSFORM_MATRIX
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// -------------------------------
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// Transform matrix test classes
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// -------------------------------
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// ====================
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// wxDC / wxGCDC tests
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// ====================
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class TransformMatrixTestCaseDCBase : public CppUnit::TestCase
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{
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public:
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TransformMatrixTestCaseDCBase()
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{
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m_dc = NULL;
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wxImage::AddHandler(new wxJPEGHandler);
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m_imgOrig.LoadFile(wxS("horse.jpg"));
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CPPUNIT_ASSERT( m_imgOrig.IsOk() );
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}
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virtual ~TransformMatrixTestCaseDCBase()
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{
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}
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virtual void setUp()
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{
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m_bmpOrig = wxBitmap(m_imgOrig);
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m_bmpUsingMatrix.Create(m_bmpOrig.GetSize(), m_bmpOrig.GetDepth());
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}
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protected:
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virtual void FlushDC() = 0;
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void VMirrorAndTranslate();
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void Rotate90Clockwise();
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#if wxUSE_GRAPHICS_CONTEXT
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void CompareToGraphicsContext();
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#endif // wxUSE_GRAPHICS_CONTEXT
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protected:
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wxImage m_imgOrig;
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wxBitmap m_bmpOrig;
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wxBitmap m_bmpUsingMatrix;
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wxDC* m_dc;
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wxDECLARE_NO_COPY_CLASS(TransformMatrixTestCaseDCBase);
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};
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// ===========
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// wxDC tests
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// ===========
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class TransformMatrixTestCaseDC : public TransformMatrixTestCaseDCBase
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{
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public:
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TransformMatrixTestCaseDC()
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{
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m_dc = &m_mdc;
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}
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virtual ~TransformMatrixTestCaseDC()
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{
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}
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virtual void setUp() wxOVERRIDE
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{
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TransformMatrixTestCaseDCBase::setUp();
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m_mdc.SelectObject(m_bmpUsingMatrix);
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}
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virtual void tearDown() wxOVERRIDE
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{
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m_mdc.SelectObject(wxNullBitmap);
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TransformMatrixTestCaseDCBase::tearDown();
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}
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protected:
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virtual void FlushDC() wxOVERRIDE {}
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private:
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CPPUNIT_TEST_SUITE( TransformMatrixTestCaseDC );
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CPPUNIT_TEST( VMirrorAndTranslate );
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CPPUNIT_TEST( Rotate90Clockwise );
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#if wxUSE_GRAPHICS_CONTEXT
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CPPUNIT_TEST( CompareToGraphicsContext );
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#endif // wxUSE_GRAPHICS_CONTEXT
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CPPUNIT_TEST_SUITE_END();
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protected:
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wxMemoryDC m_mdc;
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wxDECLARE_NO_COPY_CLASS(TransformMatrixTestCaseDC);
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};
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// register in the unnamed registry so that these tests are run by default
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CPPUNIT_TEST_SUITE_REGISTRATION( TransformMatrixTestCaseDC );
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// also include in it's own registry so that these tests can be run alone
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CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( TransformMatrixTestCaseDC, "TransformMatrixTestCaseDC" );
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#if wxUSE_GRAPHICS_CONTEXT
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// =============
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// wxGCDC tests
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// =============
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class TransformMatrixTestCaseGCDC : public TransformMatrixTestCaseDC
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{
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public:
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TransformMatrixTestCaseGCDC() {}
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virtual ~TransformMatrixTestCaseGCDC() {}
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virtual void setUp() wxOVERRIDE
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{
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TransformMatrixTestCaseDC::setUp();
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m_gcdc = new wxGCDC(m_mdc);
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m_dc = m_gcdc;
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wxGraphicsContext* ctx = m_gcdc->GetGraphicsContext();
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ctx->SetAntialiasMode(wxANTIALIAS_NONE);
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}
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virtual void tearDown() wxOVERRIDE
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{
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delete m_gcdc;
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TransformMatrixTestCaseDC::tearDown();
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}
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protected:
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virtual void FlushDC() wxOVERRIDE
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{
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m_gcdc->GetGraphicsContext()->Flush();
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}
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private:
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CPPUNIT_TEST_SUITE( TransformMatrixTestCaseGCDC );
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CPPUNIT_TEST( VMirrorAndTranslate );
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CPPUNIT_TEST( Rotate90Clockwise );
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CPPUNIT_TEST_SUITE_END();
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protected:
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wxGCDC* m_gcdc;
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wxDECLARE_NO_COPY_CLASS(TransformMatrixTestCaseGCDC);
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};
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// For MSW we have individual test cases for each graphics renderer
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// so we don't need to test wxGCDC with default renderer.
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#ifndef __WXMSW__
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// register in the unnamed registry so that these tests are run by default
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CPPUNIT_TEST_SUITE_REGISTRATION( TransformMatrixTestCaseGCDC );
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// also include in it's own registry so that these tests can be run alone
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CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( TransformMatrixTestCaseGCDC, "TransformMatrixTestCaseGCDC" );
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#endif // !__WXMSW__
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#ifdef __WXMSW__
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// GDI+ and Direct2D are available only under MSW.
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#if wxUSE_GRAPHICS_GDIPLUS
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class TransformMatrixTestCaseGCDCGDIPlus : public TransformMatrixTestCaseGCDC
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{
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public:
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TransformMatrixTestCaseGCDCGDIPlus() {}
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virtual ~TransformMatrixTestCaseGCDCGDIPlus() {}
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virtual void setUp() wxOVERRIDE
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{
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TransformMatrixTestCaseGCDC::setUp();
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wxGraphicsRenderer* rend = wxGraphicsRenderer::GetGDIPlusRenderer();
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wxGraphicsContext* ctx = rend->CreateContext(m_mdc);
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m_gcdc->SetGraphicsContext(ctx);
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}
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private:
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CPPUNIT_TEST_SUITE( TransformMatrixTestCaseGCDCGDIPlus );
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CPPUNIT_TEST( VMirrorAndTranslate );
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CPPUNIT_TEST( Rotate90Clockwise );
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CPPUNIT_TEST_SUITE_END();
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protected:
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wxDECLARE_NO_COPY_CLASS(TransformMatrixTestCaseGCDCGDIPlus);
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};
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// register in the unnamed registry so that these tests are run by default
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CPPUNIT_TEST_SUITE_REGISTRATION( TransformMatrixTestCaseGCDCGDIPlus );
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// also include in it's own registry so that these tests can be run alone
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CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( TransformMatrixTestCaseGCDCGDIPlus, "TransformMatrixTestCaseGCDCGDIPlus" );
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#endif // wxUSE_GRAPHICS_GDIPLUS
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#if wxUSE_GRAPHICS_DIRECT2D
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class TransformMatrixTestCaseGCDCDirect2D : public TransformMatrixTestCaseGCDC
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{
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public:
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TransformMatrixTestCaseGCDCDirect2D() {}
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virtual ~TransformMatrixTestCaseGCDCDirect2D() {}
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virtual void setUp() wxOVERRIDE
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{
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TransformMatrixTestCaseGCDC::setUp();
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wxGraphicsRenderer* rend = wxGraphicsRenderer::GetDirect2DRenderer();
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wxGraphicsContext* ctx = rend->CreateContext(m_mdc);
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m_gcdc->SetGraphicsContext(ctx);
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}
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virtual void FlushDC()
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{
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// Apparently, flushing native Direct2D renderer
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// is not enough to update underlying DC (bitmap)
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// and therefore we have to destroy the renderer
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// to do so.
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TransformMatrixTestCaseGCDC::FlushDC();
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m_gcdc->SetGraphicsContext(NULL);
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}
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private:
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CPPUNIT_TEST_SUITE( TransformMatrixTestCaseGCDCDirect2D );
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CPPUNIT_TEST( VMirrorAndTranslate );
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CPPUNIT_TEST( Rotate90Clockwise );
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CPPUNIT_TEST_SUITE_END();
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protected:
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wxDECLARE_NO_COPY_CLASS(TransformMatrixTestCaseGCDCDirect2D);
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};
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// register in the unnamed registry so that these tests are run by default
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CPPUNIT_TEST_SUITE_REGISTRATION( TransformMatrixTestCaseGCDCDirect2D );
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// also include in it's own registry so that these tests can be run alone
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CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( TransformMatrixTestCaseGCDCDirect2D, "TransformMatrixTestCaseGCDCDirect2D" );
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#endif // wxUSE_GRAPHICS_DIRECT2D
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#endif // __WXMSW__
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#if wxUSE_CAIRO
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class TransformMatrixTestCaseGCDCCairo : public TransformMatrixTestCaseGCDC
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{
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public:
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TransformMatrixTestCaseGCDCCairo() {}
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virtual ~TransformMatrixTestCaseGCDCCairo() {}
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virtual void setUp() wxOVERRIDE
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{
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TransformMatrixTestCaseGCDC::setUp();
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wxGraphicsRenderer* rend = wxGraphicsRenderer::GetCairoRenderer();
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wxGraphicsContext* ctx = rend->CreateContext(m_mdc);
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m_gcdc->SetGraphicsContext(ctx);
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}
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private:
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CPPUNIT_TEST_SUITE( TransformMatrixTestCaseGCDCCairo );
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CPPUNIT_TEST( VMirrorAndTranslate );
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CPPUNIT_TEST( Rotate90Clockwise );
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CPPUNIT_TEST_SUITE_END();
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protected:
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wxDECLARE_NO_COPY_CLASS(TransformMatrixTestCaseGCDCCairo);
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};
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// register in the unnamed registry so that these tests are run by default
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CPPUNIT_TEST_SUITE_REGISTRATION( TransformMatrixTestCaseGCDCCairo );
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// also include in it's own registry so that these tests can be run alone
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CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( TransformMatrixTestCaseGCDCCairo, "TransformMatrixTestCaseGCDCCairo" );
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#endif // wxUSE_CAIRO
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#endif // wxUSE_GRAPHICS_CONTEXT
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void TransformMatrixTestCaseDCBase::VMirrorAndTranslate()
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{
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// build the mirrored image using the transformation matrix
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if ( !m_dc->CanUseTransformMatrix() )
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return;
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wxAffineMatrix2D matrix;
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matrix.Mirror(wxVERTICAL);
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// For wxDC pixel center is at (0, 0) so row 0 of the bitmap is the axis
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// of mirroring and it is left intact by the transformation. In this case
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// mirrored bitmap needs to be shifted by dim-1 pixels.
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// For wxGCDC pixel center of underlying wxGraphicsContext is at (0.5, 0.5)
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// so the axis of mirroring is above row 0 of the bitmap and this row
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// is affected by the transformation. In this case mirrored bitmap
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// needs to be shifthed by dim pixels.
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int ty;
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#if wxUSE_GRAPHICS_CONTEXT
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if ( m_dc->GetGraphicsContext() )
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ty = m_bmpOrig.GetHeight();
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else
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#endif // wxUSE_GRAPHICS_CONTEXT
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ty = m_bmpOrig.GetHeight() - 1;
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matrix.Translate(0, -ty);
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m_dc->SetTransformMatrix(matrix);
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m_dc->DrawBitmap(m_bmpOrig, 0, 0);
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FlushDC();
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CHECK_THAT( m_bmpUsingMatrix.ConvertToImage(),
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RGBSameAs(m_imgOrig.Mirror(false)) );
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}
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void TransformMatrixTestCaseDCBase::Rotate90Clockwise()
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{
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// build the rotated image using the transformation matrix
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if ( !m_dc->CanUseTransformMatrix() )
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return;
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wxAffineMatrix2D matrix;
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matrix.Rotate(0.5 * M_PI);
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matrix.Translate(0, -m_bmpOrig.GetHeight());
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m_dc->SetTransformMatrix(matrix);
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m_dc->DrawBitmap(m_bmpOrig, 0, 0);
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FlushDC();
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CHECK_THAT( m_bmpUsingMatrix.ConvertToImage(),
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RGBSameAs(m_imgOrig.Rotate90(true)) );
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}
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#if wxUSE_GRAPHICS_CONTEXT
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void TransformMatrixTestCaseDCBase::CompareToGraphicsContext()
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{
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wxPoint2DDouble pointA1(1.0, 3.0), pointA2(60.0, 50.0),
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pointG1(1.0, 3.0), pointG2(60.0, 50.0);
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// Create affine matrix and transform it
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wxAffineMatrix2D matrixA1, matrixA2;
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matrixA2.Rotate(M_PI / 3);
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matrixA1.Translate(-m_bmpOrig.GetWidth()/2, -m_bmpOrig.GetHeight()/2);
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matrixA1.Rotate(-M_PI *2/ 6);
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matrixA1.Translate(m_bmpOrig.GetWidth()/2, m_bmpOrig.GetHeight()/2);
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matrixA1.Mirror(wxHORIZONTAL);
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matrixA1.Concat(matrixA2);
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matrixA1.Mirror(wxVERTICAL);
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matrixA1.Translate(m_bmpOrig.GetWidth()/2, -m_bmpOrig.GetHeight()/2);
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matrixA1.Scale(0.9, 0.9);
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matrixA1.Invert();
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// Create image using first matrix
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wxBitmap bmpUsingMatrixA1(m_bmpOrig.GetSize(), m_bmpOrig.GetDepth());
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// Build the transformed image using the transformation matrix
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{
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wxMemoryDC dc(bmpUsingMatrixA1);
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if ( !dc.CanUseTransformMatrix() )
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return;
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// Draw the bitmap
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dc.SetTransformMatrix(matrixA1);
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dc.DrawBitmap(m_bmpOrig, 0, 0);
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// Draw a line
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matrixA1.TransformPoint(&pointA1.m_x, &pointA1.m_y);
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matrixA1.TransformDistance(&pointA2.m_x, &pointA2.m_y);
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dc.DrawLine(wxRound(pointA1.m_x), wxRound(pointA1.m_y),
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wxRound(pointA1.m_x + pointA2.m_x), wxRound(pointA1.m_x + pointA2.m_y));
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}
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|
|
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// Create graphics matrix and transform it
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wxGraphicsRenderer* r;
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if ( m_dc->GetGraphicsContext() )
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|
{
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r = m_dc->GetGraphicsContext()->GetRenderer();
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|
}
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else
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|
{
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|
r = wxGraphicsRenderer::GetDefaultRenderer();
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}
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wxBitmap bmp(10, 10);
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wxMemoryDC mDc(bmp);
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wxGraphicsContext* gDc = r->CreateContext(mDc);
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wxGraphicsMatrix matrixG1 = gDc->CreateMatrix();
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wxGraphicsMatrix matrixG2 = gDc->CreateMatrix();
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matrixG2.Rotate(M_PI / 3);
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matrixG1.Translate(-m_bmpOrig.GetWidth()/2, -m_bmpOrig.GetHeight()/2);
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matrixG1.Rotate(-M_PI*2 / 6);
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matrixG1.Translate(m_bmpOrig.GetWidth()/2, m_bmpOrig.GetHeight()/2);
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matrixG1.Scale(-1, 1);
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matrixG1.Concat(matrixG2);
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matrixG1.Scale(1, -1);
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matrixG1.Translate(m_bmpOrig.GetWidth()/2, -m_bmpOrig.GetHeight()/2);
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matrixG1.Scale(0.9, 0.9);
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matrixG1.Invert();
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// Create affine matrix from the graphics matrix
|
|
wxMatrix2D mat2D;
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wxPoint2DDouble tr;
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matrixG1.Get(&mat2D.m_11, &mat2D.m_12, &mat2D.m_21, &mat2D.m_22, &tr.m_x, &tr.m_y);
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wxAffineMatrix2D matrixAG;
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matrixAG.Set(mat2D, tr);
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|
|
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delete gDc;
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|
|
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// Create image using last matrix
|
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wxBitmap bmpUsingMatrixAG(m_bmpOrig.GetHeight(), m_bmpOrig.GetWidth());
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|
|
|
// Build the transformed image using the transformation matrix
|
|
{
|
|
wxMemoryDC dc(bmpUsingMatrixAG);
|
|
|
|
if ( !dc.CanUseTransformMatrix() )
|
|
return;
|
|
|
|
// Draw the bitmap
|
|
dc.SetTransformMatrix(matrixAG);
|
|
dc.DrawBitmap(m_bmpOrig, 0, 0);
|
|
|
|
// Draw a line
|
|
matrixG1.TransformPoint(&pointG1.m_x, &pointG1.m_y);
|
|
matrixG1.TransformDistance(&pointG2.m_x, &pointG2.m_y);
|
|
|
|
dc.DrawLine(wxRound(pointG1.m_x), wxRound(pointG1.m_y),
|
|
wxRound(pointG1.m_x + pointG2.m_x), wxRound(pointG1.m_x + pointG2.m_y));
|
|
}
|
|
|
|
|
|
CHECK_THAT( bmpUsingMatrixA1.ConvertToImage(),
|
|
RGBSameAs(bmpUsingMatrixAG.ConvertToImage()) );
|
|
|
|
// Save the images to check that something _is_ inside the visible area.
|
|
//bmpUsingMatrixA1.SaveFile("matrixA1.jpg", wxBITMAP_TYPE_JPEG);
|
|
//bmpUsingMatrixAG.SaveFile("matrixAG.jpg", wxBITMAP_TYPE_JPEG);
|
|
}
|
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#endif // wxUSE_GRAPHICS_CONTEXT
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|
|
|
#endif // wxUSE_DC_TRANSFORM_MATRIX
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