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