extract (and expand and clean up and document) the header window implementation used inside the generic wxDataViewCtrl in a separate wxHeaderCtrl class which could be reused in (generic) wxListCtrl and, most importantly, wxGrid later

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@57093 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

tests/controls/headerctrltest.cpp

@@ -0,0 +1,104 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        tests/controls/headerctrltest.cpp
+// Purpose:     wxHeaderCtrl unit test
+// Author:      Vadim Zeitlin
+// Created:     2008-11-26
+// RCS-ID:      $Id$
+// Copyright:   (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org>
+///////////////////////////////////////////////////////////////////////////////
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+#include "testprec.h"
+
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+#ifndef WX_PRECOMP
+    #include "wx/app.h"
+    #include "wx/headerctrl.h"
+#endif // WX_PRECOMP
+
+// ----------------------------------------------------------------------------
+// test class
+// ----------------------------------------------------------------------------
+
+class HeaderCtrlTestCase : public CppUnit::TestCase
+{
+public:
+    HeaderCtrlTestCase() { }
+
+    virtual void setUp();
+    virtual void tearDown();
+
+private:
+    CPPUNIT_TEST_SUITE( HeaderCtrlTestCase );
+        CPPUNIT_TEST( AddDelete );
+        CPPUNIT_TEST( BestSize );
+    CPPUNIT_TEST_SUITE_END();
+
+    void AddDelete();
+    void BestSize();
+
+    wxHeaderCtrl *m_header;
+
+    DECLARE_NO_COPY_CLASS(HeaderCtrlTestCase)
+};
+
+// register in the unnamed registry so that these tests are run by default
+CPPUNIT_TEST_SUITE_REGISTRATION( HeaderCtrlTestCase );
+
+// also include in it's own registry so that these tests can be run alone
+CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( HeaderCtrlTestCase, "HeaderCtrlTestCase" );
+
+// ----------------------------------------------------------------------------
+// test initialization
+// ----------------------------------------------------------------------------
+
+void HeaderCtrlTestCase::setUp()
+{
+    m_header = new wxHeaderCtrl(wxTheApp->GetTopWindow());
+}
+
+void HeaderCtrlTestCase::tearDown()
+{
+    delete m_header;
+    m_header = NULL;
+}
+
+// ----------------------------------------------------------------------------
+// the tests themselves
+// ----------------------------------------------------------------------------
+
+void HeaderCtrlTestCase::AddDelete()
+{
+    CPPUNIT_ASSERT_EQUAL( 0, m_header->GetColumnCount() );
+
+    m_header->AppendColumn(wxHeaderCtrlColumn("Column 1"));
+    CPPUNIT_ASSERT_EQUAL( 1, m_header->GetColumnCount() );
+
+    m_header->AppendColumn(wxHeaderCtrlColumn("Column 2"));
+    CPPUNIT_ASSERT_EQUAL( 2, m_header->GetColumnCount() );
+
+    m_header->InsertColumn(wxHeaderCtrlColumn("Column 0"), 0);
+    CPPUNIT_ASSERT_EQUAL( 3, m_header->GetColumnCount() );
+
+    m_header->DeleteColumn(2);
+    CPPUNIT_ASSERT_EQUAL( 2, m_header->GetColumnCount() );
+}
+
+void HeaderCtrlTestCase::BestSize()
+{
+    const wxSize sizeEmpty = m_header->GetBestSize();
+    CPPUNIT_ASSERT( sizeEmpty.x > 0 );
+    CPPUNIT_ASSERT( sizeEmpty.y > 0 );
+
+    m_header->AppendColumn(wxHeaderCtrlColumn("Foo"));
+    m_header->AppendColumn(wxHeaderCtrlColumn("Bar"));
+    const wxSize size = m_header->GetBestSize();
+    CPPUNIT_ASSERT_EQUAL( sizeEmpty.y, size.y );
+}
+