fixed bug in mouse handling

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

diff --git a/samples/caret/caret.cpp b/samples/caret/caret.cpp
index a1c9367a74404a62403ee0e45d1135b650531f08..b3f8ca5fe7a0a01bcbbceeebfd4da4e9dde11b24 100644 (file)
--- a/samples/caret/caret.cpp
+++ b/samples/caret/caret.cpp
@@ -61,6 +61,7 @@ public:
     // event handlers (these functions should _not_ be virtual)
     void OnQuit(wxCommandEvent& event);
     void OnAbout(wxCommandEvent& event);
+    void OnSetBlinkTime(wxCommandEvent& event);
 
 private:
     // any class wishing to process wxWindows events must use this macro
@@ -122,13 +123,12 @@ private:
 enum
 {
     // menu items
-    Minimal_Quit = 1,
-    Minimal_About,
-    Minimal_Test1,
-    Minimal_Test2,
+    Caret_Quit = 1,
+    Caret_About,
+    Caret_SetBlinkTime,
 
     // controls start here (the numbers are, of course, arbitrary)
-    Minimal_Text = 1000
+    Caret_Text = 1000
 };
 
 // ----------------------------------------------------------------------------
@@ -139,8 +139,9 @@ enum
 // handlers) which process them. It can be also done at run-time, but for the
 // simple menu events like this the static method is much simpler.
 BEGIN_EVENT_TABLE(MyFrame, wxFrame)
-    EVT_MENU(Minimal_Quit,  MyFrame::OnQuit)
-    EVT_MENU(Minimal_About, MyFrame::OnAbout)
+    EVT_MENU(Caret_Quit,  MyFrame::OnQuit)
+    EVT_MENU(Caret_About, MyFrame::OnAbout)
+    EVT_MENU(Caret_SetBlinkTime, MyFrame::OnSetBlinkTime)
 END_EVENT_TABLE()
 
 // Create a new application object: this macro will allow wxWindows to create
@@ -162,7 +163,7 @@ IMPLEMENT_APP(MyApp)
 bool MyApp::OnInit()
 {
     // Create the main application window
-    MyFrame *frame = new MyFrame("Minimal wxWindows App",
+    MyFrame *frame = new MyFrame("Caret wxWindows sample",
                                  wxPoint(50, 50), wxSize(450, 340));
 
     // Show it and tell the application that it's our main window
@@ -190,9 +191,11 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
     // create a menu bar
     wxMenu *menuFile = new wxMenu;
 
-    menuFile->Append(Minimal_About, "&About...\tCtrl-A", "Show about dialog");
+    menuFile->Append(Caret_SetBlinkTime, "&Blink time...\tCtrl-B");
     menuFile->AppendSeparator();
-    menuFile->Append(Minimal_Quit, "E&xit\tAlt-X", "Quit this program");
+    menuFile->Append(Caret_About, "&About...\tCtrl-A", "Show about dialog");
+    menuFile->AppendSeparator();
+    menuFile->Append(Caret_Quit, "E&xit\tAlt-X", "Quit this program");
 
     // now append the freshly created menu to the menu bar...
     wxMenuBar *menuBar = new wxMenuBar;
@@ -219,21 +222,26 @@ void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
 
 void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
 {
-    wxString msg;
-    msg.Printf( _T("This is the about dialog of minimal sample.\n")
-                _T("Welcome to %s")
-#ifdef wxBETA_NUMBER
-               _T(" (beta %d)!")
-#endif // wxBETA_NUMBER
-               , wxVERSION_STRING
-#ifdef wxBETA_NUMBER
-               , wxBETA_NUMBER
-#endif // wxBETA_NUMBER
-              );
-
-    wxMessageBox(msg, "About Minimal", wxOK | wxICON_INFORMATION, this);
+    wxMessageBox(_T("The caret wxWindows sample.\n© 1999 Vadim Zeitlin"),
+                 _T("About Caret"), wxOK | wxICON_INFORMATION, this);
 }
 
+void MyFrame::OnSetBlinkTime(wxCommandEvent& WXUNUSED(event))
+{
+    long blinkTime = wxGetNumberFromUser
+                     (
+                      _T("The caret blink time is the time between two blinks"),
+                      _T("Time in milliseconds:"),
+                      _T("wxCaret sample"),
+                      wxCaret::GetBlinkTime(), 0, 10000,
+                      this
+                     );
+    if ( blinkTime != -1 )
+    {
+        wxCaret::SetBlinkTime((int)blinkTime);
+        wxLogStatus(this, _T("Blink time set to %ld milliseconds."), blinkTime);
+    }
+}
 
 // ----------------------------------------------------------------------------
 // MyCanvas
@@ -304,10 +312,15 @@ void MyCanvas::OnSize( wxSizeEvent &event )
     event.Skip();
 }
 
+// NB: this method is horrible inefficient especially because the caret
+//     needs to be redrawn often and in this case we only have to redraw
+//     the caret location and not the entire window - in a real program we
+//     would use GetUpdateRegion() and iterate over rectangles it contains
 void MyCanvas::OnPaint( wxPaintEvent &WXUNUSED(event) )
 {
     wxPaintDC dc( this );
     PrepareDC( dc );
+    dc.Clear();
 
     dc.SetFont( m_font );
 
@@ -361,13 +374,15 @@ void MyCanvas::OnChar( wxKeyEvent &event )
             break;
 
         default:
-            if ( wxIsprint(event.KeyCode()) )
+            if ( !event.AltDown() && wxIsprint(event.KeyCode()) )
             {
                 CharAt(m_xCaret, m_yCaret) = (wxChar)event.KeyCode();
                 NextChar();
             }
             else
             {
+                event.Skip();
+
                 // don't refresh
                 return;
             }