tests/misc/guifuncs.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        tests/misc/misctests.cpp
   3 // Purpose:     test miscellaneous GUI functions
   4 // Author:      Vadim Zeitlin
   5 // Created:     2008-09-22
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2008 Vadim Zeitlin
   8 ///////////////////////////////////////////////////////////////////////////////
   9
  10 // ----------------------------------------------------------------------------
  11 // headers
  12 // ----------------------------------------------------------------------------
  13
  14 #include "testprec.h"
  15
  16 #ifdef __BORLANDC__
  17     #pragma hdrstop
  18 #endif
  19
  20 #include "wx/defs.h"
  21
  22 #ifndef WX_PRECOMP
  23     #include "wx/gdicmn.h"
  24     #include "wx/filefn.h"
  25 #endif // !PCH
  26
  27 #include "wx/app.h"
  28 #include "wx/button.h"
  29 #include "wx/clipbrd.h"
  30 #include "wx/dataobj.h"
  31
  32 // ----------------------------------------------------------------------------
  33 // test class
  34 // ----------------------------------------------------------------------------
  35
  36 class MiscGUIFuncsTestCase : public CppUnit::TestCase
  37 {
  38 public:
  39     MiscGUIFuncsTestCase() { }
  40
  41 private:
  42     CPPUNIT_TEST_SUITE( MiscGUIFuncsTestCase );
  43         CPPUNIT_TEST( DisplaySize );
  44         CPPUNIT_TEST( URLDataObject );
  45         CPPUNIT_TEST( ParseFileDialogFilter );
  46         CPPUNIT_TEST( FindWindowAtPoint );
  47     CPPUNIT_TEST_SUITE_END();
  48
  49     void DisplaySize();
  50     void URLDataObject();
  51     void ParseFileDialogFilter();
  52     void FindWindowAtPoint();
  53
  54     DECLARE_NO_COPY_CLASS(MiscGUIFuncsTestCase)
  55 };
  56
  57 // register in the unnamed registry so that these tests are run by default
  58 CPPUNIT_TEST_SUITE_REGISTRATION( MiscGUIFuncsTestCase );
  59
  60 // also include in its own registry so that these tests can be run alone
  61 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( MiscGUIFuncsTestCase, "MiscGUIFuncsTestCase" );
  62
  63 void MiscGUIFuncsTestCase::DisplaySize()
  64 {
  65     // test that different (almost) overloads return the same results
  66     int w, h;
  67     wxDisplaySize(&w, &h);
  68     wxSize sz = wxGetDisplaySize();
  69
  70     CPPUNIT_ASSERT_EQUAL( w, sz.x );
  71     CPPUNIT_ASSERT_EQUAL( h, sz.y );
  72
  73     // test that passing NULL works as expected, e.g. doesn't crash
  74     wxDisplaySize(NULL, NULL);
  75     wxDisplaySize(&w, NULL);
  76     wxDisplaySize(NULL, &h);
  77
  78     CPPUNIT_ASSERT_EQUAL( w, sz.x );
  79     CPPUNIT_ASSERT_EQUAL( h, sz.y );
  80
  81     // test that display PPI is something reasonable
  82     sz = wxGetDisplayPPI();
  83     CPPUNIT_ASSERT( sz.x < 1000 && sz.y < 1000 );
  84 }
  85
  86 void MiscGUIFuncsTestCase::URLDataObject()
  87 {
  88     // this tests for buffer overflow, see #11102
  89     const char * const
  90         url = "http://something.long.to.overwrite.plenty.memory.example.com";
  91     wxURLDataObject * const dobj = new wxURLDataObject(url);
  92     CPPUNIT_ASSERT_EQUAL( url, dobj->GetURL() );
  93
  94     wxClipboardLocker lockClip;
  95     CPPUNIT_ASSERT( wxTheClipboard->SetData(dobj) );
  96     wxTheClipboard->Flush();
  97 }
  98
  99 void MiscGUIFuncsTestCase::ParseFileDialogFilter()
 100 {
 101     wxArrayString descs,
 102                   filters;
 103
 104     CPPUNIT_ASSERT_EQUAL
 105     (
 106         1,
 107         wxParseCommonDialogsFilter("Image files|*.jpg;*.png", descs, filters)
 108     );
 109
 110     CPPUNIT_ASSERT_EQUAL( "Image files", descs[0] );
 111     CPPUNIT_ASSERT_EQUAL( "*.jpg;*.png", filters[0] );
 112
 113     CPPUNIT_ASSERT_EQUAL
 114     (
 115         2,
 116         wxParseCommonDialogsFilter
 117         (
 118             "All files (*.*)|*.*|Python source (*.py)|*.py",
 119             descs, filters
 120         )
 121     );
 122
 123     CPPUNIT_ASSERT_EQUAL( "*.*", filters[0] );
 124     CPPUNIT_ASSERT_EQUAL( "*.py", filters[1] );
 125
 126     // Test some invalid ones too.
 127     WX_ASSERT_FAILS_WITH_ASSERT
 128     (
 129         wxParseCommonDialogsFilter
 130         (
 131             "All files (*.*)|*.*|Python source (*.py)|*.py|",
 132             descs, filters
 133         )
 134     );
 135 }
 136
 137 namespace
 138 {
 139
 140 // This class is used as a test window here. We can't use a real wxButton
 141 // because we can't create other windows as its children in wxGTK.
 142 class TestButton : public wxWindow
 143 {
 144 public:
 145     TestButton(wxWindow* parent, const wxString& label, const wxPoint& pos)
 146         : wxWindow(parent, wxID_ANY, pos, wxSize(100, 50))
 147     {
 148         SetLabel(label);
 149     }
 150 };
 151
 152 // Helper function returning the label of the window at the given point or
 153 // "NONE" if there is no window there.
 154 wxString GetLabelOfWindowAtPoint(wxWindow* parent, int x, int y)
 155 {
 156     wxWindow* const
 157         win = wxFindWindowAtPoint(parent->ClientToScreen(wxPoint(x, y)));
 158     return win ? win->GetLabel() : wxString("NONE");
 159 }
 160
 161 } // anonymous namespace
 162
 163 void MiscGUIFuncsTestCase::FindWindowAtPoint()
 164 {
 165     wxWindow* const parent = wxTheApp->GetTopWindow();
 166     CPPUNIT_ASSERT( parent );
 167
 168     // Set a label to allow distinguishing it from the other windows in the
 169     // assertion messages.
 170     parent->SetLabel("parent");
 171
 172     CPPUNIT_ASSERT_EQUAL_MESSAGE
 173     (
 174         "No window for a point outside of the window",
 175         "NONE",
 176         GetLabelOfWindowAtPoint(parent, 900, 900)
 177     );
 178
 179     wxWindow* btn1 = new TestButton(parent, "1", wxPoint(10, 10));
 180     CPPUNIT_ASSERT_EQUAL_MESSAGE
 181     (
 182         "Point over a child control corresponds to it",
 183         btn1->GetLabel(),
 184         GetLabelOfWindowAtPoint(parent, 11, 11)
 185     );
 186
 187     CPPUNIT_ASSERT_EQUAL_MESSAGE
 188     (
 189         "Point outside of any child control returns the TLW itself",
 190         parent->GetLabel(),
 191         GetLabelOfWindowAtPoint(parent, 5, 5)
 192     );
 193
 194     wxWindow* btn2 = new TestButton(parent, "2", wxPoint(10, 90));
 195     btn2->Disable();
 196     CPPUNIT_ASSERT_EQUAL_MESSAGE
 197     (
 198         "Point over a disabled child control still corresponds to it",
 199         btn2->GetLabel(),
 200         GetLabelOfWindowAtPoint(parent, 11, 91)
 201     );
 202
 203     btn2->Hide();
 204     CPPUNIT_ASSERT_EQUAL_MESSAGE
 205     (
 206         "Point over a hidden child control doesn't take it into account",
 207         parent->GetLabel(),
 208         GetLabelOfWindowAtPoint(parent, 11, 91)
 209     );
 210
 211     btn2->Show();
 212     wxWindow* btn3 = new TestButton(btn2, "3", wxPoint(0, 0));
 213     btn3->Disable();
 214     CPPUNIT_ASSERT_EQUAL_MESSAGE
 215     (
 216         "Point over recursive disabled child controls corresponds to deepest child",
 217         btn3->GetLabel(),
 218         GetLabelOfWindowAtPoint(parent, 11, 91)
 219     );
 220
 221     wxDELETE(btn1);
 222     wxDELETE(btn3);     // delete child before parent
 223     wxDELETE(btn2);
 224 }