kc3-lang/ftgl/test/FTGlyph-Test.cpp

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• Author : sammy
  Date : 2008-06-08 15:56:35
  Hash : 6c2a187c
  Message : * Revert the FTFont::Advance() and FTGlyph::Advance() improvements. After discussion, I was convinced they were not worth the backwards compatibility breakage. They now return float again, instead of FTPoint.

• test/FTGlyph-Test.cpp

• #include <assert.h>
  
  #include <cppunit/extensions/HelperMacros.h>
  #include <cppunit/TestCaller.h>
  #include <cppunit/TestCase.h>
  #include <cppunit/TestSuite.h>
  
  #include "Fontdefs.h"
  
  #include "FTGL/ftgl.h"
  
  class TestGlyph : public FTGlyph
  {
      public:
          TestGlyph(FT_GlyphSlot glyph)
          :   FTGlyph(glyph),
              advance(FTPoint(Advance(), 0.0))
          {}
  
          const FTPoint& Render(const FTPoint& pen, int renderMode) { return advance; };
  
      private:
          FTPoint advance;
  };
  
  
  class FTGlyphTest : public CppUnit::TestCase
  {
      CPPUNIT_TEST_SUITE(FTGlyphTest);
          CPPUNIT_TEST(testBadConstructor);
          CPPUNIT_TEST(testGoodConstructor);
      CPPUNIT_TEST_SUITE_END();
  
      public:
          FTGlyphTest() : CppUnit::TestCase("FTGlyph Test")
          {}
  
          FTGlyphTest(const std::string& name) : CppUnit::TestCase(name) {}
  
          void testBadConstructor()
          {
              TestGlyph testGlyph(0);
  
              CPPUNIT_ASSERT(0.0 == testGlyph.Advance());
  
              CPPUNIT_ASSERT_DOUBLES_EQUAL(0, testGlyph.BBox().Upper().Y(), 0.01);
  
              CPPUNIT_ASSERT_EQUAL(testGlyph.Error(), 0);
          }
  
  
          void testGoodConstructor()
          {
              setUpFreetype(CHARACTER_CODE_A);
              TestGlyph testGlyph(face->glyph);
  
              float testPoint = 47.0;
              float nextPoint = testGlyph.Advance();
              CPPUNIT_ASSERT_DOUBLES_EQUAL(testPoint, nextPoint, 0.0001);
  
              CPPUNIT_ASSERT_DOUBLES_EQUAL(51.39, testGlyph.BBox().Upper().Y(), 0.01);
  
              CPPUNIT_ASSERT(testGlyph.Error() == 0);
  
              tearDownFreetype();
          }
  
  
          void setUp()
          {}
  
  
          void tearDown()
          {}
  
      private:
          FT_Library   library;
          FT_Face      face;
  
          void setUpFreetype(unsigned int characterIndex)
          {
              FT_Error error = FT_Init_FreeType(&library);
              assert(!error);
              error = FT_New_Face(library, ARIAL_FONT_FILE, 0, &face);
              assert(!error);
  
              loadGlyph(characterIndex);
          }
  
          void loadGlyph(unsigned int characterIndex)
          {
              long glyphIndex = FT_Get_Char_Index(face, characterIndex);
  
              FT_Set_Char_Size(face, 0L, FONT_POINT_SIZE * 64, RESOLUTION, RESOLUTION);
  
              FT_Error error = FT_Load_Glyph(face, glyphIndex, FT_LOAD_DEFAULT);
              assert(!error);
          }
  
          void tearDownFreetype()
          {
              FT_Done_Face(face);
              FT_Done_FreeType(library);
          }
  
  };
  
  CPPUNIT_TEST_SUITE_REGISTRATION(FTGlyphTest);