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

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• Hash : d228d390
  Author :
  Date : 2008-04-13T21:27:22
  

  * Merged trunk commits [741], [742], [745], [747], [748] and [749], by henry: + Changed to use FTGlyphSlot internally instead of FTGlyph. + Added a test for broken glyph but freetype is broken so it doesn't work. + Added SetDepth function to FTBBox. + Tidy Up. + Test for bitmap bbox.

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• test/FTBBox-Test.cpp

• #include <cppunit/extensions/HelperMacros.h>
  #include <cppunit/TestCaller.h>
  #include <cppunit/TestCase.h>
  #include <cppunit/TestSuite.h>
  #include <assert.h>
  
  #include <ft2build.h>
  #include FT_FREETYPE_H
  #include FT_GLYPH_H
  
  #include "Fontdefs.h"
  #include "FTBBox.h"
  
  
  class FTBBoxTest : public CppUnit::TestCase
  {
      CPPUNIT_TEST_SUITE( FTBBoxTest);
          CPPUNIT_TEST( testDefaultConstructor);
          CPPUNIT_TEST( testGlyphConstructor);
          CPPUNIT_TEST( testBitmapConstructor);
          CPPUNIT_TEST( testMoveBBox);
          CPPUNIT_TEST( testPlusEquals);
          CPPUNIT_TEST( testSetDepth);
      CPPUNIT_TEST_SUITE_END();
          
      public:
          FTBBoxTest() : CppUnit::TestCase( "FTBBox Test")
          {}
          
          FTBBoxTest( const std::string& name) : CppUnit::TestCase(name) {}
  
          void testDefaultConstructor()
          {
              FTBBox boundingBox;
  
              CPPUNIT_ASSERT( boundingBox.lowerX == 0.0f);
              CPPUNIT_ASSERT( boundingBox.lowerY == 0.0f);
              CPPUNIT_ASSERT( boundingBox.lowerZ == 0.0f);
              CPPUNIT_ASSERT( boundingBox.upperX == 0.0f);
              CPPUNIT_ASSERT( boundingBox.upperY == 0.0f);
              CPPUNIT_ASSERT( boundingBox.upperZ == 0.0f);
          }
          
          
          void testGlyphConstructor()
          {    
              setUpFreetype( GOOD_FONT_FILE);
  
  //            FTBBox boundingBox2( (FT_GlyphSlot)(0));
  
  //            CPPUNIT_ASSERT( boundingBox2.lowerX == 0.0f);
  //            CPPUNIT_ASSERT( boundingBox2.lowerY == 0.0f);
  //            CPPUNIT_ASSERT( boundingBox2.lowerZ == 0.0f);
  //            CPPUNIT_ASSERT( boundingBox2.upperX == 0.0f);
  //            CPPUNIT_ASSERT( boundingBox2.upperY == 0.0f);
  //            CPPUNIT_ASSERT( boundingBox2.upperZ == 0.0f);
  
              FTBBox boundingBox( face->glyph);
  
              CPPUNIT_ASSERT_DOUBLES_EQUAL(   2, boundingBox.lowerX, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL( -15, boundingBox.lowerY, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL(   0, boundingBox.lowerZ, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL(  35, boundingBox.upperX, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL(  38, boundingBox.upperY, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL(   0, boundingBox.upperZ, 0.01);
  
              
              tearDownFreetype();
          }    
          
          void testBitmapConstructor()
          {
              setUpFreetype( GOOD_FONT_FILE);
              
              FT_Load_Char( face, CHARACTER_CODE_G, FT_LOAD_MONOCHROME);
  
              CPPUNIT_ASSERT( ft_glyph_format_bitmap != face->glyph->format);
  
              FTBBox boundingBox3( face->glyph);
  
              CPPUNIT_ASSERT_DOUBLES_EQUAL(   2, boundingBox3.lowerX, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL( -15, boundingBox3.lowerY, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL(   0, boundingBox3.lowerZ, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL(  35, boundingBox3.upperX, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL(  38, boundingBox3.upperY, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL(   0, boundingBox3.upperZ, 0.01);
  
          }
  
          void testMoveBBox()
          {
              FTBBox  boundingBox;
              FTPoint firstMove( 3.5f, 1.0f, -2.5f);
              FTPoint secondMove( -3.5f, -1.0f, 2.5f);
              
              boundingBox.Move( firstMove);
          
              CPPUNIT_ASSERT( boundingBox.lowerX ==  3.5f);
              CPPUNIT_ASSERT( boundingBox.lowerY ==  1.0f);
              CPPUNIT_ASSERT( boundingBox.lowerZ == -2.5f);
              CPPUNIT_ASSERT( boundingBox.upperX ==  3.5f);
              CPPUNIT_ASSERT( boundingBox.upperY ==  1.0f);
              CPPUNIT_ASSERT( boundingBox.upperZ == -2.5f);
  
              boundingBox.Move( secondMove);
          
              CPPUNIT_ASSERT( boundingBox.lowerX == 0.0f);
              CPPUNIT_ASSERT( boundingBox.lowerY == 0.0f);
              CPPUNIT_ASSERT( boundingBox.lowerZ == 0.0f);
              CPPUNIT_ASSERT( boundingBox.upperX == 0.0f);
              CPPUNIT_ASSERT( boundingBox.upperY == 0.0f);
              CPPUNIT_ASSERT( boundingBox.upperZ == 0.0f);
          }
          
          void testPlusEquals()
          {
              setUpFreetype( GOOD_FONT_FILE);
  
              FTBBox boundingBox1;
              FTBBox boundingBox2( face->glyph);
              
              boundingBox1 += boundingBox2;
          
              CPPUNIT_ASSERT_DOUBLES_EQUAL(   2, boundingBox2.lowerX, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL( -15, boundingBox2.lowerY, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL(   0, boundingBox2.lowerZ, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL(  35, boundingBox2.upperX, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL(  38, boundingBox2.upperY, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL(   0, boundingBox2.upperZ, 0.01);
              
              float advance  = 40;
              
              boundingBox2.Move( FTPoint( advance, 0, 0));
              boundingBox1 += boundingBox2;
              
              CPPUNIT_ASSERT_DOUBLES_EQUAL(  42, boundingBox2.lowerX, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL( -15, boundingBox2.lowerY, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL(   0, boundingBox2.lowerZ, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL(  75, boundingBox2.upperX, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL(  38, boundingBox2.upperY, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL(   0, boundingBox2.upperZ, 0.01);
  
              tearDownFreetype();
          }
          
          void testSetDepth()
          {
              setUpFreetype( GOOD_FONT_FILE);
              
              FTBBox boundingBox( face->glyph);
              
              boundingBox.SetDepth( 37.754);
              
              CPPUNIT_ASSERT_DOUBLES_EQUAL(   2, boundingBox.lowerX, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL( -15, boundingBox.lowerY, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL(   0, boundingBox.lowerZ, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL(  35, boundingBox.upperX, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL(  38, boundingBox.upperY, 0.01);
              CPPUNIT_ASSERT_DOUBLES_EQUAL(  37.754, boundingBox.upperZ, 0.01);
  
              tearDownFreetype();
          }
          
          void setUp() 
          {}
          
          
          void tearDown() 
          {}
          
      private:
          FT_Library   library;
          FT_Face      face;
  
          void setUpFreetype(const char *fontName)
          {
              FT_Error error = FT_Init_FreeType( &library);
              CPPUNIT_ASSERT(!error);
              error = FT_New_Face( library, fontName, 0, &face);
              CPPUNIT_ASSERT(!error);
  
              FT_Set_Char_Size( face, 0L, FONT_POINT_SIZE * 64, RESOLUTION, RESOLUTION);
  
              error = FT_Load_Char( face, CHARACTER_CODE_G, FT_LOAD_RENDER);
              CPPUNIT_ASSERT(!error);
          }
          
          void tearDownFreetype()
          {
              FT_Done_Face( face);
              FT_Done_FreeType( library);
          }
          
  };
  
  CPPUNIT_TEST_SUITE_REGISTRATION( FTBBoxTest);
  
  

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