e3778b4d9c
Changed several occurrences of "it's" where "its" is meant, as well as a few other minor typos. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@67656 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
147 lines
4.0 KiB
C++
147 lines
4.0 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/dcmemory.h"
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#include "wx/affinematrix2d.h"
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#include "wx/math.h"
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#include "testimage.h"
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// ----------------------------------------------------------------------------
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// 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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{
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wxImage::AddHandler(new wxJPEGHandler);
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}
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virtual void setUp();
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private:
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CPPUNIT_TEST_SUITE( AffineTransformTestCase );
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CPPUNIT_TEST( InvertMatrix );
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#if wxUSE_DC_TRANSFORM_MATRIX
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CPPUNIT_TEST( VMirrorAndTranslate );
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CPPUNIT_TEST( Rotate90Clockwise );
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#endif // wxUSE_DC_TRANSFORM_MATRIX
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CPPUNIT_TEST_SUITE_END();
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void InvertMatrix();
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#if wxUSE_DC_TRANSFORM_MATRIX
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void VMirrorAndTranslate();
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void Rotate90Clockwise();
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wxImage m_imgOrig;
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wxBitmap m_bmpOrig;
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#endif // wxUSE_DC_TRANSFORM_MATRIX
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DECLARE_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::setUp()
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{
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#if wxUSE_DC_TRANSFORM_MATRIX
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m_imgOrig.LoadFile("horse.jpg");
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CPPUNIT_ASSERT( m_imgOrig.IsOk() );
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m_bmpOrig = wxBitmap(m_imgOrig);
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#endif // wxUSE_DC_TRANSFORM_MATRIX
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}
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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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#if wxUSE_DC_TRANSFORM_MATRIX
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void AffineTransformTestCase::VMirrorAndTranslate()
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{
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wxBitmap bmpUsingMatrix(m_bmpOrig.GetWidth(), m_bmpOrig.GetHeight());
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// build the mirrored image using the transformation matrix
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{
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wxMemoryDC dc(bmpUsingMatrix);
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if ( !dc.CanUseTransformMatrix() )
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return;
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wxAffineMatrix2D matrix;
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matrix.Mirror(wxVERTICAL);
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matrix.Translate(0, m_bmpOrig.GetHeight() - 1);
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dc.SetTransformMatrix(matrix);
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dc.DrawBitmap(m_bmpOrig, 0, 0);
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}
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CPPUNIT_ASSERT_EQUAL( bmpUsingMatrix.ConvertToImage(),
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m_imgOrig.Mirror(false) );
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}
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void AffineTransformTestCase::Rotate90Clockwise()
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{
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wxBitmap bmpUsingMatrix(m_bmpOrig.GetHeight(), m_bmpOrig.GetWidth());
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// build the rotated image using the transformation matrix
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{
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wxMemoryDC dc(bmpUsingMatrix);
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if ( !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(m_bmpOrig.GetHeight(), 0);
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dc.SetTransformMatrix(matrix);
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dc.DrawBitmap(m_bmpOrig, 0, 0);
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}
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CPPUNIT_ASSERT_EQUAL( bmpUsingMatrix.ConvertToImage(),
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m_imgOrig.Rotate90(true) );
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}
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#endif // wxUSE_DC_TRANSFORM_MATRIX
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