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///////////////////////////////////////////////////////////////////////////////
// Name: tests/sizers/gridsizer.cpp
// Purpose: Unit tests for wxGridSizer and wxFlexGridSizer.
// Author: Vadim Zeitlin
// Created: 2015-04-03
// Copyright: (c) 2015 Vadim Zeitlin <vadim@wxwidgets.org>
///////////////////////////////////////////////////////////////////////////////
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#include "testprec.h"
#ifndef WX_PRECOMP
#include "wx/app.h"
#include "wx/sizer.h"
#include "wx/vector.h"
#endif // WX_PRECOMP
#include "asserthelper.h"
// ----------------------------------------------------------------------------
// test class
// ----------------------------------------------------------------------------
class GridSizerTestCase
{
protected:
GridSizerTestCase();
~GridSizerTestCase();
// Clear the current sizer contents and add the specified windows to it,
// using the same flags for all of them.
void SetChildren(const wxVector<wxWindow*>& children,
const wxSizerFlags& flags);
wxWindow *m_win;
wxFlexGridSizer *m_sizer;
wxDECLARE_NO_COPY_CLASS(GridSizerTestCase);
};
// ----------------------------------------------------------------------------
// test initialization
// ----------------------------------------------------------------------------
GridSizerTestCase::GridSizerTestCase()
{
m_win = new wxWindow(wxTheApp->GetTopWindow(), wxID_ANY);
m_win->SetClientSize(127, 35);
m_sizer = new wxFlexGridSizer(2);
m_win->SetSizer(m_sizer);
}
GridSizerTestCase::~GridSizerTestCase()
{
delete m_win;
m_win = NULL;
m_sizer = NULL;
}
// ----------------------------------------------------------------------------
// helpers
// ----------------------------------------------------------------------------
void GridSizerTestCase::SetChildren(const wxVector<wxWindow*>& children,
const wxSizerFlags& flags)
{
m_sizer->Clear();
for ( wxVector<wxWindow*>::const_iterator i = children.begin();
i != children.end();
++i )
{
m_sizer->Add(*i, flags);
}
m_win->Layout();
}
// ----------------------------------------------------------------------------
// tests themselves
// ----------------------------------------------------------------------------
TEST_CASE_METHOD(GridSizerTestCase,
"wxGridSizer::Layout",
"[grid-sizer][sizer]")
{
const wxSize sizeTotal = m_win->GetClientSize();
const wxSize sizeChild(sizeTotal.x / 4, sizeTotal.y / 4);
const wxSize sizeRest(sizeTotal.x - sizeTotal.x / 4,
sizeTotal.y - sizeTotal.y / 4);
wxVector<wxWindow*> children;
for ( int n = 0; n < 4; n++ )
{
children.push_back(new wxWindow(m_win, wxID_ANY, wxDefaultPosition,
sizeChild));
}
m_sizer->AddGrowableRow(1);
m_sizer->AddGrowableCol(1);
// Without Expand() windows have their initial size.
SECTION("No flags")
{
SetChildren(children, wxSizerFlags());
CHECK( children[0]->GetSize() == sizeChild );
CHECK( children[1]->GetSize() == sizeChild );
CHECK( children[2]->GetSize() == sizeChild );
CHECK( children[3]->GetSize() == sizeChild );
}
// With just expand, they expand to fill the entire column and the row
// containing them (which may or not expand on its own).
SECTION("Expand")
{
SetChildren(children, wxSizerFlags().Expand());
CHECK( children[0]->GetSize() == sizeChild );
CHECK( children[1]->GetSize() == wxSize(sizeRest.x, sizeChild.y) );
CHECK( children[2]->GetSize() == wxSize(sizeChild.x, sizeRest.y) );
CHECK( children[3]->GetSize() == sizeRest );
}
// With expand and another alignment flag, they should expand only in the
// direction in which the alignment is not given.
SECTION("Expand and center vertically")
{
SetChildren(children, wxSizerFlags().Expand().CentreVertical());
CHECK( children[0]->GetSize() == sizeChild );
CHECK( children[1]->GetSize() == wxSize(sizeRest.x, sizeChild.y) );
CHECK( children[2]->GetSize() == sizeChild );
CHECK( children[3]->GetSize() == wxSize(sizeRest.x, sizeChild.y) );
}
// Same as above but mirrored.
SECTION("Expand and center horizontally")
{
SetChildren(children, wxSizerFlags().Expand().CentreHorizontal());
CHECK( children[0]->GetSize() == sizeChild );
CHECK( children[1]->GetSize() == sizeChild );
CHECK( children[2]->GetSize() == wxSize(sizeChild.x, sizeRest.y) );
CHECK( children[3]->GetSize() == wxSize(sizeChild.x, sizeRest.y) );
}
// Test alignment flag too.
SECTION("Right align")
{
SetChildren(children, wxSizerFlags().Right());
CHECK( children[0]->GetPosition() == wxPoint( 0, 0) );
CHECK( children[1]->GetPosition() == wxPoint(sizeRest.x, 0) );
CHECK( children[2]->GetPosition() == wxPoint( 0, sizeChild.y) );
CHECK( children[3]->GetPosition() == wxPoint(sizeRest.x, sizeChild.y) );
}
// Also test combining centering in one direction and aligning in another.
SECTION("Right align and center vertically")
{
SetChildren(children, wxSizerFlags().Right().CentreVertical());
const int yMid = sizeChild.y + (sizeRest.y - sizeChild.y) / 2;
CHECK( children[0]->GetPosition() == wxPoint( 0, 0) );
CHECK( children[1]->GetPosition() == wxPoint(sizeRest.x, 0) );
CHECK( children[2]->GetPosition() == wxPoint( 0, yMid) );
CHECK( children[3]->GetPosition() == wxPoint(sizeRest.x, yMid) );
}
}
TEST_CASE_METHOD(GridSizerTestCase,
"wxGridSizer::IncompatibleFlags",
"[grid-sizer][sizer]")
{
WX_ASSERT_FAILS_WITH_ASSERT_MESSAGE
(
"Combining wxEXPAND and wxCENTRE should assert",
m_sizer->Add(10, 10, wxSizerFlags().Expand().Centre())
);
}
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