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 #include "wx/panel.h"
  32
  33 #include "asserthelper.h"
  34
  35 // ----------------------------------------------------------------------------
  36 // test class
  37 // ----------------------------------------------------------------------------
  38
  39 class MiscGUIFuncsTestCase : public CppUnit::TestCase
  40 {
  41 public:
  42     MiscGUIFuncsTestCase() { }
  43
  44 private:
  45     CPPUNIT_TEST_SUITE( MiscGUIFuncsTestCase );
  46         CPPUNIT_TEST( DisplaySize );
  47         CPPUNIT_TEST( URLDataObject );
  48         CPPUNIT_TEST( ParseFileDialogFilter );
  49         CPPUNIT_TEST( ClientToScreen );
  50         CPPUNIT_TEST( FindWindowAtPoint );
  51     CPPUNIT_TEST_SUITE_END();
  52
  53     void DisplaySize();
  54     void URLDataObject();
  55     void ParseFileDialogFilter();
  56     void ClientToScreen();
  57     void FindWindowAtPoint();
  58
  59     DECLARE_NO_COPY_CLASS(MiscGUIFuncsTestCase)
  60 };
  61
  62 // register in the unnamed registry so that these tests are run by default
  63 CPPUNIT_TEST_SUITE_REGISTRATION( MiscGUIFuncsTestCase );
  64
  65 // also include in its own registry so that these tests can be run alone
  66 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( MiscGUIFuncsTestCase, "MiscGUIFuncsTestCase" );
  67
  68 void MiscGUIFuncsTestCase::DisplaySize()
  69 {
  70     // test that different (almost) overloads return the same results
  71     int w, h;
  72     wxDisplaySize(&w, &h);
  73     wxSize sz = wxGetDisplaySize();
  74
  75     CPPUNIT_ASSERT_EQUAL( w, sz.x );
  76     CPPUNIT_ASSERT_EQUAL( h, sz.y );
  77
  78     // test that passing NULL works as expected, e.g. doesn't crash
  79     wxDisplaySize(NULL, NULL);
  80     wxDisplaySize(&w, NULL);
  81     wxDisplaySize(NULL, &h);
  82
  83     CPPUNIT_ASSERT_EQUAL( w, sz.x );
  84     CPPUNIT_ASSERT_EQUAL( h, sz.y );
  85
  86     // test that display PPI is something reasonable
  87     sz = wxGetDisplayPPI();
  88     CPPUNIT_ASSERT( sz.x < 1000 && sz.y < 1000 );
  89 }
  90
  91 void MiscGUIFuncsTestCase::URLDataObject()
  92 {
  93     // this tests for buffer overflow, see #11102
  94     const char * const
  95         url = "http://something.long.to.overwrite.plenty.memory.example.com";
  96     wxURLDataObject * const dobj = new wxURLDataObject(url);
  97     CPPUNIT_ASSERT_EQUAL( url, dobj->GetURL() );
  98
  99     wxClipboardLocker lockClip;
 100     CPPUNIT_ASSERT( wxTheClipboard->SetData(dobj) );
 101     wxTheClipboard->Flush();
 102 }
 103
 104 void MiscGUIFuncsTestCase::ParseFileDialogFilter()
 105 {
 106     wxArrayString descs,
 107                   filters;
 108
 109     CPPUNIT_ASSERT_EQUAL
 110     (
 111         1,
 112         wxParseCommonDialogsFilter("Image files|*.jpg;*.png", descs, filters)
 113     );
 114
 115     CPPUNIT_ASSERT_EQUAL( "Image files", descs[0] );
 116     CPPUNIT_ASSERT_EQUAL( "*.jpg;*.png", filters[0] );
 117
 118     CPPUNIT_ASSERT_EQUAL
 119     (
 120         2,
 121         wxParseCommonDialogsFilter
 122         (
 123             "All files (*.*)|*.*|Python source (*.py)|*.py",
 124             descs, filters
 125         )
 126     );
 127
 128     CPPUNIT_ASSERT_EQUAL( "*.*", filters[0] );
 129     CPPUNIT_ASSERT_EQUAL( "*.py", filters[1] );
 130
 131     // Test some invalid ones too.
 132     WX_ASSERT_FAILS_WITH_ASSERT
 133     (
 134         wxParseCommonDialogsFilter
 135         (
 136             "All files (*.*)|*.*|Python source (*.py)|*.py|",
 137             descs, filters
 138         )
 139     );
 140 }
 141
 142 void MiscGUIFuncsTestCase::ClientToScreen()
 143 {
 144     wxWindow* const tlw = wxTheApp->GetTopWindow();
 145     CPPUNIT_ASSERT( tlw );
 146
 147     wxPanel* const
 148         p1 = new wxPanel(tlw, wxID_ANY, wxPoint(0, 0), wxSize(100, 50));
 149     wxPanel* const
 150         p2 = new wxPanel(tlw, wxID_ANY, wxPoint(0, 50), wxSize(100, 50));
 151     wxWindow* const
 152         b = new wxWindow(p2, wxID_ANY, wxPoint(10, 10), wxSize(30, 10));
 153
 154     // We need this to realize the windows created above under wxGTK.
 155     wxYield();
 156
 157     const wxPoint tlwOrig = tlw->ClientToScreen(wxPoint(0, 0));
 158
 159     CPPUNIT_ASSERT_EQUAL
 160     (
 161         tlwOrig + wxPoint(0, 50),
 162         p2->ClientToScreen(wxPoint(0, 0))
 163     );
 164
 165     CPPUNIT_ASSERT_EQUAL
 166     (
 167         tlwOrig + wxPoint(10, 60),
 168         b->ClientToScreen(wxPoint(0, 0))
 169     );
 170
 171     p1->Destroy();
 172     p2->Destroy();
 173 }
 174
 175 namespace
 176 {
 177
 178 // This class is used as a test window here. We can't use a real wxButton
 179 // because we can't create other windows as its children in wxGTK.
 180 class TestButton : public wxWindow
 181 {
 182 public:
 183     TestButton(wxWindow* parent, const wxString& label, const wxPoint& pos)
 184         : wxWindow(parent, wxID_ANY, pos, wxSize(100, 50))
 185     {
 186         SetLabel(label);
 187     }
 188 };
 189
 190 // Helper function returning the label of the window at the given point or
 191 // "NONE" if there is no window there.
 192 wxString GetLabelOfWindowAtPoint(wxWindow* parent, int x, int y)
 193 {
 194     wxWindow* const
 195         win = wxFindWindowAtPoint(parent->ClientToScreen(wxPoint(x, y)));
 196     return win ? win->GetLabel() : wxString("NONE");
 197 }
 198
 199 } // anonymous namespace
 200
 201 void MiscGUIFuncsTestCase::FindWindowAtPoint()
 202 {
 203     wxWindow* const parent = wxTheApp->GetTopWindow();
 204     CPPUNIT_ASSERT( parent );
 205
 206     // Set a label to allow distinguishing it from the other windows in the
 207     // assertion messages.
 208     parent->SetLabel("parent");
 209
 210     wxWindow* btn1 = new TestButton(parent, "1", wxPoint(10, 10));
 211     wxWindow* btn2 = new TestButton(parent, "2", wxPoint(10, 90));
 212     wxWindow* btn3 = new TestButton(btn2, "3", wxPoint(20, 20));
 213
 214     // We need this to realize the windows created above under wxGTK.
 215     wxYield();
 216
 217     CPPUNIT_ASSERT_EQUAL_MESSAGE
 218     (
 219         "No window for a point outside of the window",
 220         "NONE",
 221         GetLabelOfWindowAtPoint(parent, 900, 900)
 222     );
 223
 224     CPPUNIT_ASSERT_EQUAL_MESSAGE
 225     (
 226         "Point over a child control corresponds to it",
 227         btn1->GetLabel(),
 228         GetLabelOfWindowAtPoint(parent, 11, 11)
 229     );
 230
 231     CPPUNIT_ASSERT_EQUAL_MESSAGE
 232     (
 233         "Point outside of any child control returns the TLW itself",
 234         parent->GetLabel(),
 235         GetLabelOfWindowAtPoint(parent, 5, 5)
 236     );
 237
 238     btn2->Disable();
 239     CPPUNIT_ASSERT_EQUAL_MESSAGE
 240     (
 241         "Point over a disabled child control still corresponds to it",
 242         btn2->GetLabel(),
 243         GetLabelOfWindowAtPoint(parent, 11, 91)
 244     );
 245
 246     btn2->Hide();
 247     CPPUNIT_ASSERT_EQUAL_MESSAGE
 248     (
 249         "Point over a hidden child control doesn't take it into account",
 250         parent->GetLabel(),
 251         GetLabelOfWindowAtPoint(parent, 11, 91)
 252     );
 253
 254     btn2->Show();
 255     CPPUNIT_ASSERT_EQUAL_MESSAGE
 256     (
 257         "Point over child control corresponds to the child",
 258         btn3->GetLabel(),
 259         GetLabelOfWindowAtPoint(parent, 31, 111)
 260     );
 261
 262     btn3->Disable();
 263     CPPUNIT_ASSERT_EQUAL_MESSAGE
 264     (
 265         "Point over disabled child controls still corresponds to this child",
 266         btn3->GetLabel(),
 267         GetLabelOfWindowAtPoint(parent, 31, 111)
 268     );
 269
 270     btn1->Destroy();
 271     btn2->Destroy();
 272     // btn3 was already deleted when its parent was
 273 }