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path: root/basebmp/test/linetest.cxx
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// autogenerated file with codegen.pl

#include <cppunit/simpleheader.hxx>

#include <basegfx/vector/b2isize.hxx>
#include <basegfx/point/b2ipoint.hxx>

#include <basebmp/color.hxx>
#include <basebmp/scanlineformats.hxx>
#include <basebmp/bitmapdevice.hxx>
#include <basebmp/debug.hxx>

#include <iostream>
#include <fstream>

using namespace ::basebmp;

namespace
{
/*
  std::ofstream output("32bpp_test.dump");
  debugDump( mpDevice32bpp, output );
*/

class LineTest : public CppUnit::TestFixture
{
private:
    BitmapDeviceSharedPtr mpDevice1bpp;
    BitmapDeviceSharedPtr mpDevice32bpp;

    int countPixel( const BitmapDeviceSharedPtr& rDevice,
                    Color                        checkColor ) const
    {
        int count(0);
        const basegfx::B2ISize& rSize( rDevice->getSize() );
        for( sal_Int32 y=0; y<rSize.getY(); ++y )
            for( sal_Int32 x=0; x<rSize.getX(); ++x )
                if( rDevice->getPixel( basegfx::B2IPoint(x,y) ) == checkColor )
                    ++count;

        return count;
    }

    void implTestBasicDiagonalLines(const BitmapDeviceSharedPtr& rDevice)
    {
        rDevice->clear(Color(0));

        const basegfx::B2IPoint aPt1(1,1);
        const basegfx::B2IPoint aPt2(9,9);
        const Color aCol(0xFFFFFFFF);
        rDevice->drawLine( aPt1, aPt2, aCol, DrawMode_PAINT );
        CPPUNIT_ASSERT_MESSAGE("first pixel set",
                               rDevice->getPixel(aPt1) == aCol);
        CPPUNIT_ASSERT_MESSAGE("last pixel set",
                               rDevice->getPixel(aPt2) == aCol);
        const basegfx::B2IPoint aPt3(0,0);
        CPPUNIT_ASSERT_MESSAGE("topmost pixel not set",
                               rDevice->getPixel(aPt3) != aCol);
        const basegfx::B2IPoint aPt4(10,10);
        CPPUNIT_ASSERT_MESSAGE("bottommost pixel not set",
                               rDevice->getPixel(aPt4) != aCol);

        CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 9",
                               countPixel( rDevice, aCol ) == 9);

        rDevice->drawLine( aPt2, aPt1, aCol, DrawMode_PAINT );

        CPPUNIT_ASSERT_MESSAGE("number of rendered pixel after "
                               "reversed paint is not 9",
                               countPixel( rDevice, aCol ) == 9);
    }

    void implTestBasicVerticalLines(const BitmapDeviceSharedPtr& rDevice)
    {
        rDevice->clear(Color(0));

        const basegfx::B2IPoint aPt1(1,1);
        const basegfx::B2IPoint aPt2(1,9);
        const Color aCol(0xFFFFFFFF);
        rDevice->drawLine( aPt1, aPt2, aCol, DrawMode_PAINT );
        CPPUNIT_ASSERT_MESSAGE("first pixel set",
                               rDevice->getPixel(aPt1) == aCol);
        CPPUNIT_ASSERT_MESSAGE("last pixel set",
                               rDevice->getPixel(aPt2) == aCol);
        const basegfx::B2IPoint aPt3(0,0);
        CPPUNIT_ASSERT_MESSAGE("topmost pixel not set",
                               rDevice->getPixel(aPt3) != aCol);
        const basegfx::B2IPoint aPt4(0,10);
        CPPUNIT_ASSERT_MESSAGE("bottommost pixel not set",
                               rDevice->getPixel(aPt4) != aCol);

        CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 9",
                               countPixel( rDevice, aCol ) == 9);
    }

    // test pixel rounding (should always tend towards start point of
    // the line)
    void implTestTieBreaking(const BitmapDeviceSharedPtr& rDevice)
    {
        rDevice->clear(Color(0));

        const basegfx::B2IPoint aPt1(1,1);
        const basegfx::B2IPoint aPt2(3,2);
        const Color aCol(0xFFFFFFFF);
        rDevice->drawLine( aPt1, aPt2, aCol, DrawMode_PAINT );
        CPPUNIT_ASSERT_MESSAGE("first pixel set",
                               rDevice->getPixel(aPt1) == aCol);
        CPPUNIT_ASSERT_MESSAGE("second pixel set",
                               rDevice->getPixel(basegfx::B2IPoint(2,1)) == aCol);
        CPPUNIT_ASSERT_MESSAGE("last pixel set",
                               rDevice->getPixel(aPt2) == aCol);
        CPPUNIT_ASSERT_MESSAGE("number of rendered pixel after "
                               "reversed paint is not 3",
                               countPixel( rDevice, aCol ) == 3);

        rDevice->drawLine( aPt2, aPt1, aCol, DrawMode_PAINT );
        CPPUNIT_ASSERT_MESSAGE("alternate second pixel set",
                               rDevice->getPixel(basegfx::B2IPoint(2,2)) == aCol);

        CPPUNIT_ASSERT_MESSAGE("number of rendered pixel after "
                               "reversed paint is not 4",
                               countPixel( rDevice, aCol ) == 4);
    }

public:
    void setUp()
    {
        const basegfx::B2ISize aSize(11,11);
        mpDevice1bpp = createBitmapDevice( aSize,
                                           true,
                                           Format::ONE_BIT_MSB_PAL );
        mpDevice32bpp = createBitmapDevice( aSize,
                                           true,
                                           Format::THIRTYTWO_BIT_TC_MASK );
    }

    void testBasicDiagonalLines()
    {
        implTestBasicDiagonalLines( mpDevice1bpp );
        implTestBasicDiagonalLines( mpDevice32bpp );
    }

    void testBasicVerticalLines()
    {
        implTestBasicVerticalLines( mpDevice1bpp );
        //implTestBasicVerticalLines( mpDevice32bpp );
    }

    // test pixel rounding (should always tend towards start point of
    // the line)
    void testTieBreaking()
    {
        implTestTieBreaking( mpDevice1bpp );
        implTestTieBreaking( mpDevice32bpp );
    }

    // Change the following lines only, if you add, remove or rename
    // member functions of the current class,
    // because these macros are need by auto register mechanism.

    CPPUNIT_TEST_SUITE(LineTest);
    CPPUNIT_TEST(testBasicDiagonalLines);
    CPPUNIT_TEST(testBasicVerticalLines);
    CPPUNIT_TEST(testTieBreaking);
    CPPUNIT_TEST_SUITE_END();
};

// -----------------------------------------------------------------------------
CPPUNIT_TEST_SUITE_NAMED_REGISTRATION(LineTest, "LineTest");
}


// -----------------------------------------------------------------------------

// this macro creates an empty function, which will called by the RegisterAllFunctions()
// to let the user the possibility to also register some functions by hand.
//NOADDITIONAL;