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wxWidgets/tests/sizers/boxsizer.cpp
Maarten Bent 57180d68c8 Add wxOVERRIDE to test files 
And cleanup some tailing spaces and tabs.
2018-07-29 12:08:53 +02:00

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///////////////////////////////////////////////////////////////////////////////
// Name: tests/sizers/boxsizer.cpp
// Purpose: Unit tests for wxBoxSizer
// Author: Vadim Zeitlin
// Created: 2010-03-06
// Copyright: (c) 2010 Vadim Zeitlin <vadim@wxwidgets.org>
///////////////////////////////////////////////////////////////////////////////
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#include "testprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/app.h"
#include "wx/sizer.h"
#include "wx/listbox.h"
#endif // WX_PRECOMP
#include "asserthelper.h"
// ----------------------------------------------------------------------------
// test class
// ----------------------------------------------------------------------------
class BoxSizerTestCase : public CppUnit::TestCase
{
public:
BoxSizerTestCase() { }
virtual void setUp() wxOVERRIDE;
virtual void tearDown() wxOVERRIDE;
private:
CPPUNIT_TEST_SUITE( BoxSizerTestCase );
CPPUNIT_TEST( Size1 );
CPPUNIT_TEST( Size3 );
CPPUNIT_TEST( CalcMin );
CPPUNIT_TEST( SetMinSize );
CPPUNIT_TEST( BestSizeRespectsMaxSize );
CPPUNIT_TEST( RecalcSizesRespectsMaxSize1 );
CPPUNIT_TEST( RecalcSizesRespectsMaxSize2 );
CPPUNIT_TEST( IncompatibleFlags );
CPPUNIT_TEST_SUITE_END();
void Size1();
void Size3();
void CalcMin();
void SetMinSize();
void BestSizeRespectsMaxSize();
void RecalcSizesRespectsMaxSize1();
void RecalcSizesRespectsMaxSize2();
void IncompatibleFlags();
wxWindow *m_win;
wxSizer *m_sizer;
wxDECLARE_NO_COPY_CLASS(BoxSizerTestCase);
};
// register in the unnamed registry so that these tests are run by default
CPPUNIT_TEST_SUITE_REGISTRATION( BoxSizerTestCase );
// also include in its own registry so that these tests can be run alone
CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( BoxSizerTestCase, "BoxSizerTestCase" );
// ----------------------------------------------------------------------------
// test initialization
// ----------------------------------------------------------------------------
void BoxSizerTestCase::setUp()
{
m_win = new wxWindow(wxTheApp->GetTopWindow(), wxID_ANY);
m_win->SetClientSize(127, 35);
m_sizer = new wxBoxSizer(wxHORIZONTAL);
m_win->SetSizer(m_sizer);
}
void BoxSizerTestCase::tearDown()
{
delete m_win;
m_win = NULL;
m_sizer = NULL;
}
// ----------------------------------------------------------------------------
// tests themselves
// ----------------------------------------------------------------------------
void BoxSizerTestCase::Size1()
{
const wxSize sizeTotal = m_win->GetClientSize();
const wxSize sizeChild = sizeTotal / 2;
wxWindow * const
child = new wxWindow(m_win, wxID_ANY, wxDefaultPosition, sizeChild);
m_sizer->Add(child);
m_win->Layout();
CPPUNIT_ASSERT_EQUAL( sizeChild, child->GetSize() );
m_sizer->Clear();
m_sizer->Add(child, wxSizerFlags(1));
m_win->Layout();
CPPUNIT_ASSERT_EQUAL( wxSize(sizeTotal.x, sizeChild.y), child->GetSize() );
m_sizer->Clear();
m_sizer->Add(child, wxSizerFlags(1).Expand());
m_win->Layout();
CPPUNIT_ASSERT_EQUAL( sizeTotal, child->GetSize() );
m_sizer->Clear();
m_sizer->Add(child, wxSizerFlags());
m_sizer->SetItemMinSize(child, sizeTotal*2);
m_win->Layout();
CPPUNIT_ASSERT_EQUAL( sizeTotal, child->GetSize() );
m_sizer->Clear();
m_sizer->Add(child, wxSizerFlags().Expand());
m_sizer->SetItemMinSize(child, sizeTotal*2);
m_win->Layout();
CPPUNIT_ASSERT_EQUAL( sizeTotal, child->GetSize() );
}
void BoxSizerTestCase::Size3()
{
// check that various combinations of minimal sizes and proportions work as
// expected for different window sizes
static const struct LayoutTestData
{
// proportions of the elements
int prop[3];
// minimal sizes of the elements in the sizer direction
int minsize[3];
// total size and the expected sizes of the elements
int x,
sizes[3];
// if true, don't try the permutations of our test data
bool dontPermute;
// Add the given window to the sizer with the corresponding parameters
void AddToSizer(wxSizer *sizer, wxWindow *win, int n) const
{
sizer->Add(win, wxSizerFlags(prop[n]));
sizer->SetItemMinSize(win, wxSize(minsize[n], -1));
}
} layoutTestData[] =
{
// some really simple cases (no need to permute those, they're
// symmetrical anyhow)
{ { 1, 1, 1, }, { 50, 50, 50, }, 150, { 50, 50, 50, }, true },
{ { 2, 2, 2, }, { 50, 50, 50, }, 600, { 200, 200, 200, }, true },
// items with different proportions and min sizes when there is enough
// space to lay them out
{ { 1, 2, 3, }, { 0, 0, 0, }, 600, { 100, 200, 300, } },
{ { 1, 2, 3, }, { 100, 100, 100, }, 600, { 100, 200, 300, } },
{ { 1, 2, 3, }, { 100, 50, 50, }, 600, { 100, 200, 300, } },
{ { 0, 1, 1, }, { 200, 100, 100, }, 600, { 200, 200, 200, } },
{ { 0, 1, 2, }, { 300, 100, 100, }, 600, { 300, 100, 200, } },
{ { 0, 1, 1, }, { 100, 50, 50, }, 300, { 100, 100, 100, } },
{ { 0, 1, 2, }, { 100, 50, 50, }, 400, { 100, 100, 200, } },
// cases when there is not enough space to lay out the items correctly
// while still respecting their min sizes
{ { 0, 1, 1, }, { 100, 150, 50, }, 300, { 100, 150, 50, } },
{ { 1, 2, 3, }, { 100, 100, 100, }, 300, { 100, 100, 100, } },
{ { 1, 2, 3, }, { 100, 50, 50, }, 300, { 100, 80, 120, } },
{ { 1, 2, 3, }, { 100, 10, 10, }, 150, { 100, 20, 30, } },
// cases when there is not enough space even for the min sizes (don't
// permute in these cases as the layout does depend on the item order
// because the first ones have priority)
{ { 1, 2, 3, }, { 100, 50, 50, }, 150, { 100, 50, 0, }, true },
{ { 1, 2, 3, }, { 100, 100, 100, }, 200, { 100, 100, 0, }, true },
{ { 1, 2, 3, }, { 100, 100, 100, }, 150, { 100, 50, 0, }, true },
{ { 1, 2, 3, }, { 100, 100, 100, }, 50, { 50, 0, 0, }, true },
{ { 1, 2, 3, }, { 100, 100, 100, }, 0, { 0, 0, 0, }, true },
};
wxWindow *child[3];
child[0] = new wxWindow(m_win, wxID_ANY);
child[1] = new wxWindow(m_win, wxID_ANY);
child[2] = new wxWindow(m_win, wxID_ANY);
for ( unsigned i = 0; i < WXSIZEOF(layoutTestData); i++ )
{
LayoutTestData ltd = layoutTestData[i];
// the results shouldn't depend on the order of items except in the
// case when there is not enough space for even the fixed width items
// (in which case the first ones might get enough of it but not the
// last ones) so test a couple of permutations of test data unless
// specifically disabled for this test case
for ( unsigned p = 0; p < 3; p++)
{
switch ( p )
{
case 0:
// nothing to do, use original data
break;
case 1:
// exchange first and last elements
wxSwap(ltd.prop[0], ltd.prop[2]);
wxSwap(ltd.minsize[0], ltd.minsize[2]);
wxSwap(ltd.sizes[0], ltd.sizes[2]);
break;
case 2:
// exchange the original third and second elements
wxSwap(ltd.prop[0], ltd.prop[1]);
wxSwap(ltd.minsize[0], ltd.minsize[1]);
wxSwap(ltd.sizes[0], ltd.sizes[1]);
break;
}
m_sizer->Clear();
unsigned j;
for ( j = 0; j < WXSIZEOF(child); j++ )
ltd.AddToSizer(m_sizer, child[j], j);
m_win->SetClientSize(ltd.x, -1);
m_win->Layout();
for ( j = 0; j < WXSIZEOF(child); j++ )
{
WX_ASSERT_EQUAL_MESSAGE
(
(
"test %lu, permutation #%lu: wrong size for child #%d "
"for total size %d",
static_cast<unsigned long>(i),
static_cast<unsigned long>(p),
j,
ltd.x
),
ltd.sizes[j], child[j]->GetSize().x
);
}
// don't try other permutations if explicitly disabled
if ( ltd.dontPermute )
break;
}
}
}
void BoxSizerTestCase::CalcMin()
{
static const unsigned NUM_TEST_ITEM = 3;
static const struct CalcMinTestData
{
// proportions of the elements, if one of them is -1 it means to not
// use this window at all in this test
int prop[NUM_TEST_ITEM];
// minimal sizes of the elements in the sizer direction
int minsize[NUM_TEST_ITEM];
// the expected minimal sizer size
int total;
} calcMinTestData[] =
{
{ { 1, 1, -1 }, { 30, 50, 0 }, 100 },
{ { 1, 1, 0 }, { 30, 50, 20 }, 120 },
{ { 10, 10, -1 }, { 30, 50, 0 }, 100 },
{ { 1, 2, 2 }, { 50, 50, 80 }, 250 },
{ { 1, 2, 2 }, { 100, 50, 80 }, 500 },
};
unsigned n;
wxWindow *child[NUM_TEST_ITEM];
for ( n = 0; n < NUM_TEST_ITEM; n++ )
child[n] = new wxWindow(m_win, wxID_ANY);
for ( unsigned i = 0; i < WXSIZEOF(calcMinTestData); i++ )
{
m_sizer->Clear();
const CalcMinTestData& cmtd = calcMinTestData[i];
for ( n = 0; n < NUM_TEST_ITEM; n++ )
{
if ( cmtd.prop[n] != -1 )
{
child[n]->SetInitialSize(wxSize(cmtd.minsize[n], -1));
m_sizer->Add(child[n], wxSizerFlags(cmtd.prop[n]));
}
}
WX_ASSERT_EQUAL_MESSAGE
(
("In test #%u", i),
cmtd.total, m_sizer->CalcMin().x
);
}
}
void BoxSizerTestCase::SetMinSize()
{
wxWindow* const child = new wxWindow(m_win, wxID_ANY);
child->SetInitialSize(wxSize(10, -1));
m_sizer->Add(child);
// Setting minimal size explicitly must make GetMinSize() return at least
// this size even if it needs a much smaller one.
m_sizer->SetMinSize(100, 0);
CPPUNIT_ASSERT_EQUAL( 100, m_sizer->GetMinSize().x );
m_sizer->Layout();
CPPUNIT_ASSERT_EQUAL( 100, m_sizer->GetMinSize().x );
}
void BoxSizerTestCase::BestSizeRespectsMaxSize()
{
m_sizer->Clear();
const int maxWidth = 100;
wxSizer* sizer = new wxBoxSizer(wxVERTICAL);
wxListBox* listbox = new wxListBox(m_win, wxID_ANY);
listbox->Append("some very very very very very very very very very very very long string");
listbox->SetMaxSize(wxSize(maxWidth, -1));
sizer->Add(listbox);
m_sizer->Add(sizer);
m_win->Layout();
CPPUNIT_ASSERT_EQUAL(maxWidth, listbox->GetSize().GetWidth());
}
void BoxSizerTestCase::RecalcSizesRespectsMaxSize1()
{
m_sizer->Clear();
const int maxWidth = 100;
m_win->SetClientSize(300, 300);
wxSizer* sizer1 = new wxBoxSizer(wxVERTICAL);
m_sizer->Add(sizer1);
wxListBox* listbox1 = new wxListBox(m_win, wxID_ANY);
listbox1->Append("some very very very very very very very very very very very long string");
sizer1->Add(listbox1);
wxSizer* sizer2 = new wxBoxSizer(wxHORIZONTAL);
sizer1->Add(sizer2, wxSizerFlags().Expand());
wxListBox* listbox2 = new wxListBox(m_win, wxID_ANY);
listbox2->Append("some string");
listbox2->SetMaxSize(wxSize(100, -1));
sizer2->Add(listbox2, wxSizerFlags().Proportion(1));
m_win->Layout();
CPPUNIT_ASSERT_EQUAL(maxWidth, listbox2->GetSize().GetWidth());
}
void BoxSizerTestCase::RecalcSizesRespectsMaxSize2()
{
m_sizer->Clear();
m_win->SetClientSize(300, 300);
wxSizer* sizer1 = new wxBoxSizer(wxVERTICAL);
m_sizer->Add(sizer1, wxSizerFlags().Expand());
wxWindow* child1 = new wxWindow(m_win, wxID_ANY);
sizer1->Add(child1, wxSizerFlags().Proportion(1));
wxWindow* child2 = new wxWindow(m_win, wxID_ANY);
child2->SetMaxSize(wxSize(-1, 50));
sizer1->Add(child2, wxSizerFlags().Proportion(1));
wxWindow* child3 = new wxWindow(m_win, wxID_ANY);
sizer1->Add(child3, wxSizerFlags().Proportion(1));
m_win->Layout();
CPPUNIT_ASSERT_EQUAL(125, child1->GetSize().GetHeight());
CPPUNIT_ASSERT_EQUAL(50, child2->GetSize().GetHeight());
CPPUNIT_ASSERT_EQUAL(125, child3->GetSize().GetHeight());
}
void BoxSizerTestCase::IncompatibleFlags()
{
#define ASSERT_SIZER_INVALID_FLAGS(f, msg) \
WX_ASSERT_FAILS_WITH_ASSERT_MESSAGE( \
"Expected assertion not generated for " msg, \
m_sizer->Add(10, 10, 0, f) \
)
#define ASSERT_SIZER_INCOMPATIBLE_FLAGS(f1, f2) \
ASSERT_SIZER_INVALID_FLAGS(f1 | f2, \
"using incompatible flags " #f1 " and " #f2 \
)
// In horizontal sizers alignment is only used in vertical direction.
ASSERT_SIZER_INVALID_FLAGS(
wxALIGN_RIGHT,
"using wxALIGN_RIGHT in a horizontal sizer"
);
ASSERT_SIZER_INVALID_FLAGS(
wxALIGN_CENTRE_HORIZONTAL,
"using wxALIGN_CENTRE_HORIZONTAL in a horizontal sizer"
);
// However using wxALIGN_CENTRE_HORIZONTAL together with
// wxALIGN_CENTRE_VERTICAL as done by wxSizerFlags::Centre() should work.
m_sizer->Add(10, 10, wxSizerFlags().Centre());
// Combining two vertical alignment flags doesn't make sense.
ASSERT_SIZER_INCOMPATIBLE_FLAGS(wxALIGN_BOTTOM, wxALIGN_CENTRE_VERTICAL);
// Combining wxEXPAND with vertical alignment doesn't make sense neither.
ASSERT_SIZER_INCOMPATIBLE_FLAGS(wxEXPAND, wxALIGN_CENTRE_VERTICAL);
ASSERT_SIZER_INCOMPATIBLE_FLAGS(wxEXPAND, wxALIGN_BOTTOM);
// And now exactly the same thing in the other direction.
m_sizer = new wxBoxSizer(wxVERTICAL);
m_win->SetSizer(m_sizer);
ASSERT_SIZER_INVALID_FLAGS(
wxALIGN_BOTTOM,
"using wxALIGN_BOTTOM in a vertical sizer"
);
ASSERT_SIZER_INVALID_FLAGS(
wxALIGN_CENTRE_VERTICAL,
"using wxALIGN_CENTRE_VERTICAL in a vertical sizer"
);
m_sizer->Add(10, 10, wxSizerFlags().Centre());
ASSERT_SIZER_INCOMPATIBLE_FLAGS(wxALIGN_RIGHT, wxALIGN_CENTRE_HORIZONTAL);
ASSERT_SIZER_INCOMPATIBLE_FLAGS(wxEXPAND, wxALIGN_CENTRE_HORIZONTAL);
ASSERT_SIZER_INCOMPATIBLE_FLAGS(wxEXPAND, wxALIGN_RIGHT);
#undef ASSERT_SIZER_INCOMPATIBLE_FLAGS
#undef ASSERT_SIZER_INVALID_FLAGS
}
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