Removed two more GUI lock-ups. This time when

[wxWidgets.git] / samples / scroll / scroll.cpp

diff --git a/samples/scroll/scroll.cpp b/samples/scroll/scroll.cpp
index 67c936293b51791c9c69e54839368a7bc742b2c5..8f5cba310cd299ca1d48e3d1e1455d5f697d1f44 100644 (file)
--- a/samples/scroll/scroll.cpp
+++ b/samples/scroll/scroll.cpp
@@ -38,10 +38,12 @@ public:
     MyCanvas( wxWindow *parent, wxWindowID, const wxPoint &pos, const wxSize &size );
     ~MyCanvas();
     void OnPaint( wxPaintEvent &event );
+    void OnQueryPosition( wxCommandEvent &event );
     void OnAddButton( wxCommandEvent &event );
     void OnDeleteButton( wxCommandEvent &event );
     void OnMoveButton( wxCommandEvent &event );
     void OnScrollWin( wxCommandEvent &event );
+    void OnMouseDown( wxMouseEvent &event );
 
     wxButton *m_button;
 
@@ -84,6 +86,7 @@ IMPLEMENT_APP(MyApp)
 #define   ID_DELBUTTON    2
 #define   ID_MOVEBUTTON   3
 #define   ID_SCROLLWIN    4
+#define   ID_QUERYPOS     5
 
 #define   ID_NEWBUTTON    10
 
@@ -92,7 +95,9 @@ IMPLEMENT_APP(MyApp)
 IMPLEMENT_DYNAMIC_CLASS(MyCanvas, wxScrolledWindow)
 
 BEGIN_EVENT_TABLE(MyCanvas, wxScrolledWindow)
-  EVT_PAINT(                   MyCanvas::OnPaint)
+  EVT_PAINT(                  MyCanvas::OnPaint)
+  EVT_MOUSE_EVENTS(                  MyCanvas::OnMouseDown)
+  EVT_BUTTON( ID_QUERYPOS,    MyCanvas::OnQueryPosition)
   EVT_BUTTON( ID_ADDBUTTON,   MyCanvas::OnAddButton)
   EVT_BUTTON( ID_DELBUTTON,   MyCanvas::OnDeleteButton)
   EVT_BUTTON( ID_MOVEBUTTON,  MyCanvas::OnMoveButton)
@@ -117,9 +122,9 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id,
         "examples."
     };
   
-    m_button = new wxButton( this, -1, "wxButton", wxPoint(10,110) );
+    m_button = new wxButton( this, ID_QUERYPOS, "Query position", wxPoint(10,110) );
   
-    (void) new wxTextCtrl( this, -1, "wxTextCtrl", wxPoint(10,150) );
+    (void) new wxTextCtrl( this, -1, "wxTextCtrl", wxPoint(10,150), wxSize(80,-1) );
   
     (void) new wxRadioButton( this, -1, "Disable", wxPoint(10,190) );
   
@@ -146,17 +151,17 @@ MyCanvas::MyCanvas( wxWindow *parent, wxWindowID id,
 
     (void) new wxListBox( this, -1, wxPoint(260,280), wxSize(120,120), 5, choices, wxLB_ALWAYS_SB );
 
-    wxWindow *test = new wxWindow( this, -1, wxPoint(10, 530), wxSize(130,120), wxSIMPLE_BORDER | wxTAB_TRAVERSAL );
+    wxPanel *test = new wxPanel( this, -1, wxPoint(10, 530), wxSize(130,120), wxSIMPLE_BORDER | wxTAB_TRAVERSAL );
     test->SetBackgroundColour( "WHEAT" );
     wxButton *test2 = new wxButton( test, -1, "Hallo", wxPoint(10,10) );
   
-    test = new wxWindow( this, -1, wxPoint(160, 530), wxSize(130,120), wxSUNKEN_BORDER | wxTAB_TRAVERSAL );
+    test = new wxPanel( this, -1, wxPoint(160, 530), wxSize(130,120), wxSUNKEN_BORDER | wxTAB_TRAVERSAL );
     test->SetBackgroundColour( "WHEAT" );
     test->SetCursor( wxCursor( wxCURSOR_NO_ENTRY ) );
     test2 = new wxButton( test, -1, "Hallo", wxPoint(10,10) );
     test2->SetCursor( wxCursor( wxCURSOR_PENCIL ) );
   
-    test = new wxWindow( this, -1, wxPoint(310, 530), wxSize(130,120), wxRAISED_BORDER | wxTAB_TRAVERSAL );
+    test = new wxPanel( this, -1, wxPoint(310, 530), wxSize(130,120), wxRAISED_BORDER | wxTAB_TRAVERSAL );
     test->SetBackgroundColour( "WHEAT" );
     test->SetCursor( wxCursor( wxCURSOR_PENCIL ) );
     test2 = new wxButton( test, -1, "Hallo", wxPoint(10,10) );
@@ -171,15 +176,54 @@ MyCanvas::~MyCanvas()
 {
 }
 
+void MyCanvas::OnMouseDown( wxMouseEvent &event )
+{
+    if (event.LeftDown())
+    {
+        wxPoint pt( event.GetPosition() );
+        int x,y;
+        CalcUnscrolledPosition( pt.x, pt.y, &x, &y );
+        wxLogMessage( "Mouse down event at: %d %d, scrolled: %d %d", pt.x, pt.y, x, y );
+    }
+    
+    if (event.LeftIsDown() &&
+        event.LeftDown())
+    {
+        wxLogMessage( "Error: both LeftDown() and LeftIsDown() are TRUE!" );
+    }
+}
+
+void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
+{
+    wxPaintDC dc( this );
+    PrepareDC( dc );
+
+    dc.DrawText( "Press mouse button to test calculations!", 160, 50 );
+
+    dc.DrawText( "Some text", 140, 140 );
+  
+    dc.DrawRectangle( 100, 160, 200, 200 );
+}
+
+void MyCanvas::OnQueryPosition( wxCommandEvent &WXUNUSED(event) )
+{
+    wxPoint pt( m_button->GetPosition() );
+    wxLogMessage( "Position of ""Query position"" is %d %d", pt.x, pt.y );
+    pt = ClientToScreen( pt );
+    wxLogMessage( "Position of ""Query position"" on screen is %d %d", pt.x, pt.y );
+}
+
 void MyCanvas::OnAddButton( wxCommandEvent &WXUNUSED(event) )
 {
-    wxLogMessage( "Inserting button at position 50,50" );
-    (void) new wxButton( this, ID_NEWBUTTON, "new button", wxPoint(50,50) );
+    wxLogMessage( "Inserting button at position 10,70..." );
+    wxButton *button = new wxButton( this, ID_NEWBUTTON, "new button", wxPoint(10,70), wxSize(80,25) );
+    wxPoint pt( button->GetPosition() );
+    wxLogMessage( "-> Position after inserting %d %d", pt.x, pt.y );
 }
 
 void MyCanvas::OnDeleteButton( wxCommandEvent &event )
 {
-    wxLogMessage( "deleting button inserted with ""add button""" );
+    wxLogMessage( "Deleting button inserted with ""Add button""..." );
     wxWindow *win = FindWindow( ID_NEWBUTTON );
     if (win)
        win->Destroy();
@@ -191,7 +235,11 @@ void MyCanvas::OnMoveButton( wxCommandEvent &event )
 {
     wxLogMessage( "Moving button 10 pixels downward.." );
     wxWindow *win = FindWindow( event.GetId() );
-    win->Move( -1, win->GetPosition().y + 10 );
+    wxPoint pt( win->GetPosition() );
+    wxLogMessage( "-> Position before move is %d %d", pt.x, pt.y );
+    win->Move( -1, pt.y + 10 );
+    pt = win->GetPosition();
+    wxLogMessage( "-> Position after move is %d %d", pt.x, pt.y );
 }
 
 void MyCanvas::OnScrollWin( wxCommandEvent &WXUNUSED(event) )
@@ -202,16 +250,6 @@ void MyCanvas::OnScrollWin( wxCommandEvent &WXUNUSED(event) )
     Scroll( -1, y+2 );
 }
 
-void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
-{
-    wxPaintDC dc( this );
-    PrepareDC( dc );
-
-    dc.DrawText( "Some text", 140, 140 );
-  
-    dc.DrawRectangle( 100, 160, 200, 200 );
-}
-
 // MyFrame
 
 const int ID_QUIT  = 108;