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///////////////////////////////////////////////////////////////////////////////
// Name: tests/sizers/wrapsizer.cpp
// Purpose: Unit tests for wxWrapSizer
// Author: Catalin Raceanu
// Created: 2010-10-23
// Copyright: (c) 2010 wxWidgets development team
///////////////////////////////////////////////////////////////////////////////
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#include "testprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/app.h"
#endif // WX_PRECOMP
#include "wx/wrapsizer.h"
#include "asserthelper.h"
// ----------------------------------------------------------------------------
// test class
// ----------------------------------------------------------------------------
class WrapSizerTestCase : public CppUnit::TestCase
{
public:
WrapSizerTestCase() { }
virtual void setUp();
virtual void tearDown();
private:
CPPUNIT_TEST_SUITE( WrapSizerTestCase );
CPPUNIT_TEST( CalcMin );
CPPUNIT_TEST_SUITE_END();
void CalcMin();
wxWindow *m_win;
wxSizer *m_sizer;
DECLARE_NO_COPY_CLASS(WrapSizerTestCase)
};
// register in the unnamed registry so that these tests are run by default
CPPUNIT_TEST_SUITE_REGISTRATION( WrapSizerTestCase );
// also include in its own registry so that these tests can be run alone
CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( WrapSizerTestCase, "WrapSizerTestCase" );
// ----------------------------------------------------------------------------
// test initialization
// ----------------------------------------------------------------------------
void WrapSizerTestCase::setUp()
{
m_win = new wxWindow(wxTheApp->GetTopWindow(), wxID_ANY);
m_win->SetClientSize(180, 240);
m_sizer = new wxWrapSizer(wxHORIZONTAL);
m_win->SetSizer(m_sizer);
}
void WrapSizerTestCase::tearDown()
{
delete m_win;
m_win = NULL;
m_sizer = NULL;
}
// ----------------------------------------------------------------------------
// tests themselves
// ----------------------------------------------------------------------------
void WrapSizerTestCase::CalcMin()
{
const wxSize sizeTotal = m_win->GetClientSize();
wxSize sizeMinExpected;
// With a single child the min size must be the same as child size.
const wxSize sizeChild1 = wxSize(sizeTotal.x/2 - 10, sizeTotal.y/4);
sizeMinExpected = sizeChild1;
wxWindow * const
child1 = new wxWindow(m_win, wxID_ANY, wxDefaultPosition, sizeChild1);
child1->SetBackgroundColour(*wxRED);
m_sizer->Add(child1);
m_win->Layout();
CPPUNIT_ASSERT_EQUAL( sizeMinExpected, m_sizer->CalcMin() );
// If both children can fit in the same row, the minimal size of the sizer
// is determined by the sum of their minimal horizontal dimensions and
// the maximum of their minimal vertical dimensions.
const wxSize sizeChild2 = wxSize(sizeTotal.x/2 + 10, sizeTotal.y/3);
sizeMinExpected.x += sizeChild2.x;
sizeMinExpected.y = wxMax(sizeChild1.y, sizeChild2.y);
wxWindow * const
child2 = new wxWindow(m_win, wxID_ANY, wxDefaultPosition, sizeChild2);
child2->SetBackgroundColour(*wxYELLOW);
m_sizer->Add(child2);
m_win->Layout();
CPPUNIT_ASSERT_EQUAL( sizeMinExpected, m_sizer->CalcMin() );
// Three children will take at least two rows so the minimal size in
// vertical direction must increase.
const wxSize sizeChild3 = wxSize(sizeTotal.x/2, sizeTotal.y/5);
sizeMinExpected.y += sizeChild3.y;
wxWindow * const
child3 = new wxWindow(m_win, wxID_ANY, wxDefaultPosition, sizeChild3);
child3->SetBackgroundColour(*wxGREEN);
m_sizer->Add(child3);
m_win->Layout();
CPPUNIT_ASSERT_EQUAL( sizeMinExpected, m_sizer->CalcMin() );
}
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