// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-// ============================================================================
-// declarations
-// ============================================================================
-
-// ----------------------------------------------------------------------------
-// headers
-// ----------------------------------------------------------------------------
-#ifdef __GNUG__
- #pragma implementation "caret.cpp"
- #pragma interface "caret.cpp"
-#endif
-
// For compilers that support precompilation, includes "wx/wx.h".
#include <wx/wxprec.h>
// 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
void OnChar( wxKeyEvent &event );
private:
- wxCaret m_caret;
wxFont m_font;
// the margin around the text (looks nicer)
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
};
// ----------------------------------------------------------------------------
// 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
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
// 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(Caret_About, "&About...\tCtrl-A", "Show about dialog");
menuFile->AppendSeparator();
- menuFile->Append(Minimal_Quit, "E&xit\tAlt-X", "Quit this program");
+ 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;
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
m_heightChar = dc.GetCharHeight();
m_widthChar = dc.GetCharWidth();
- m_caret.Create( this, m_widthChar, m_heightChar );
+ wxCaret *caret = new wxCaret(this, m_widthChar, m_heightChar);
+ SetCaret(caret);
m_xCaret = m_yCaret =
m_xChars = m_yChars = 0;
m_xMargin = m_yMargin = 5;
- m_caret.Move(m_xMargin, m_yMargin);
- m_caret.Show();
+ caret->Move(m_xMargin, m_yMargin);
+ caret->Show();
}
MyCanvas::~MyCanvas()
free(m_text);
m_text = (wxChar *)calloc(m_xChars * m_yChars, sizeof(wxChar));
- wxString msg;
- msg.Printf(_T("Panel size is (%d, %d)"), m_xChars, m_yChars);
+ wxFrame *frame = wxDynamicCast(GetParent(), wxFrame);
- ((wxFrame *)GetParent())->SetStatusText(msg, 1);
+ if ( frame && frame->GetStatusBar() )
+ {
+ wxString msg;
+ msg.Printf(_T("Panel size is (%d, %d)"), m_xChars, m_yChars);
+
+ frame->SetStatusText(msg, 1);
+ }
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 );
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;
}
wxLogStatus(_T("Caret is at (%d, %d)"), m_xCaret, m_yCaret);
- m_caret.Move(m_xMargin + m_xCaret * m_widthChar,
- m_yMargin + m_yCaret * m_heightChar);
+ GetCaret()->Move(m_xMargin + m_xCaret * m_widthChar,
+ m_yMargin + m_yCaret * m_heightChar);
Refresh();
}
projects / wxWidgets.git / blobdiff