wxWidgets/tests/graphics/measuring.cpp
Kevin Ollivier f806b2b4ee Add a test to ensure that CreateMeasuringContext creates a valid context
that can measure text.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@60187 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2009-04-15 22:38:53 +00:00

96 lines
2.9 KiB
C++

///////////////////////////////////////////////////////////////////////////////
// Name: tests/controls/clientsize.cpp
// Purpose: Client vs. window size handling unit test
// Author: Vaclav Slavik
// Created: 2008-02-12
// RCS-ID: $Id: clientsize.cpp 53740 2008-05-25 02:56:22Z VZ $
// Copyright: (c) 2008 Vaclav Slavik <vslavik@fastmail.fm>
///////////////////////////////////////////////////////////////////////////////
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#include "testprec.h"
#if wxUSE_GRAPHICS_CONTEXT
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/app.h"
#include "wx/font.h"
#include "wx/window.h"
#endif // WX_PRECOMP
#include "wx/graphics.h"
// ----------------------------------------------------------------------------
// test class
// ----------------------------------------------------------------------------
class MeasuringContextTestCase : public CppUnit::TestCase
{
public:
MeasuringContextTestCase() { }
virtual void setUp();
virtual void tearDown();
private:
CPPUNIT_TEST_SUITE( MeasuringContextTestCase );
CPPUNIT_TEST( GetTextExtent );
CPPUNIT_TEST_SUITE_END();
void GetTextExtent();
wxWindow *m_win;
DECLARE_NO_COPY_CLASS(MeasuringContextTestCase)
};
// register in the unnamed registry so that these tests are run by default
CPPUNIT_TEST_SUITE_REGISTRATION( MeasuringContextTestCase );
// also include in it's own registry so that these tests can be run alone
CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( MeasuringContextTestCase, "MeasuringContextTestCase" );
// ----------------------------------------------------------------------------
// test initialization
// ----------------------------------------------------------------------------
void MeasuringContextTestCase::setUp()
{
m_win = wxTheApp->GetTopWindow();
}
void MeasuringContextTestCase::tearDown()
{
m_win = NULL;
}
// ----------------------------------------------------------------------------
// tests themselves
// ----------------------------------------------------------------------------
void MeasuringContextTestCase::GetTextExtent()
{
wxGraphicsRenderer* renderer = wxGraphicsRenderer::GetDefaultRenderer();
CPPUNIT_ASSERT(renderer);
wxGraphicsContext* context = renderer->CreateMeasuringContext();
CPPUNIT_ASSERT(context);
wxFont font(12, wxFONTFAMILY_DEFAULT, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL);
CPPUNIT_ASSERT(font.IsOk());
context->SetFont(font, *wxBLACK);
double width, height, descent, externalLeading = 0.0;
context->GetTextExtent("x", &width, &height, &descent, &externalLeading);
// TODO: Determine a way to make these tests more robust.
CPPUNIT_ASSERT(width > 0.0);
CPPUNIT_ASSERT(height > 0.0);
}
#endif