tests/graphics/measuring.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        tests/graphics/measuring.cpp
   3 // Purpose:     Tests for wxGraphicsRenderer::CreateMeasuringContext
   4 // Author:      Kevin Ollivier
   5 // Created:     2008-02-12
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2008 Kevin Ollivier <kevino@theolliviers.com>
   8 ///////////////////////////////////////////////////////////////////////////////
   9
  10 // ----------------------------------------------------------------------------
  11 // headers
  12 // ----------------------------------------------------------------------------
  13
  14 #include "testprec.h"
  15
  16 // wxCairoRenderer::CreateMeasuringContext() is not implement for wxX11
  17 #if wxUSE_GRAPHICS_CONTEXT && !defined(__WXX11__)
  18
  19 #ifdef __BORLANDC__
  20     #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24     #include "wx/app.h"
  25     #include "wx/font.h"
  26     #include "wx/window.h"
  27 #endif // WX_PRECOMP
  28
  29 #include "wx/graphics.h"
  30 // ----------------------------------------------------------------------------
  31 // test class
  32 // ----------------------------------------------------------------------------
  33
  34 class MeasuringContextTestCase : public CppUnit::TestCase
  35 {
  36 public:
  37     MeasuringContextTestCase() { }
  38
  39 private:
  40     CPPUNIT_TEST_SUITE( MeasuringContextTestCase );
  41         CPPUNIT_TEST( GetTextExtent );
  42     CPPUNIT_TEST_SUITE_END();
  43
  44     void GetTextExtent();
  45
  46     DECLARE_NO_COPY_CLASS(MeasuringContextTestCase)
  47 };
  48
  49 // register in the unnamed registry so that these tests are run by default
  50 CPPUNIT_TEST_SUITE_REGISTRATION( MeasuringContextTestCase );
  51
  52 // also include in its own registry so that these tests can be run alone
  53 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( MeasuringContextTestCase, "MeasuringContextTestCase" );
  54
  55 // ----------------------------------------------------------------------------
  56 // tests themselves
  57 // ----------------------------------------------------------------------------
  58
  59 void MeasuringContextTestCase::GetTextExtent()
  60 {
  61     wxGraphicsRenderer* renderer = wxGraphicsRenderer::GetDefaultRenderer();
  62     CPPUNIT_ASSERT(renderer);
  63     wxGraphicsContext* context = renderer->CreateMeasuringContext();
  64     CPPUNIT_ASSERT(context);
  65     wxFont font(12, wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL);
  66     CPPUNIT_ASSERT(font.IsOk());
  67     context->SetFont(font, *wxBLACK);
  68     double width, height, descent, externalLeading = 0.0;
  69     context->GetTextExtent("x", &width, &height, &descent, &externalLeading);
  70
  71     // TODO: Determine a way to make these tests more robust.
  72     CPPUNIT_ASSERT(width > 0.0);
  73     CPPUNIT_ASSERT(height > 0.0);
  74
  75 }
  76
  77 #endif