#endif
// for all others, include the necessary headers (this file is usually all you
-// need because it includes almost all <standard< wxWindows headers
+// need because it includes almost all <standard< wxWidgets headers
#ifndef WX_PRECOMP
#include "wx/wx.h"
-
#include "wx/log.h"
#endif
#include "wx/caret.h"
+#include "wx/numdlg.h"
// ----------------------------------------------------------------------------
// ressources
wxChar& CharAt(int x, int y) { return *(m_text + x + m_xChars * y); }
// operations
+ void SetFontSize(int fontSize);
void CreateCaret();
void MoveCaret(int x, int y);
// move the caret to m_xCaret, m_yCaret
void DoMoveCaret();
+ // update the geometry
+ void ChangeSize();
+
wxFont m_font;
// the margin around the text (looks nicer)
void OnQuit(wxCommandEvent& event);
void OnAbout(wxCommandEvent& event);
void OnSetBlinkTime(wxCommandEvent& event);
+ void OnSetFontSize(wxCommandEvent& event);
void OnCaretMove(wxCommandEvent& event);
private:
MyCanvas *m_canvas;
- // any class wishing to process wxWindows events must use this macro
+ // any class wishing to process wxWidgets events must use this macro
DECLARE_EVENT_TABLE()
};
Caret_Quit = 1,
Caret_About,
Caret_SetBlinkTime,
+ Caret_SetFontSize,
Caret_Move,
// controls start here (the numbers are, of course, arbitrary)
};
// ----------------------------------------------------------------------------
-// event tables and other macros for wxWindows
+// event tables and other macros for wxWidgets
// ----------------------------------------------------------------------------
-// the event tables connect the wxWindows events with the functions (event
+// the event tables connect the wxWidgets events with the functions (event
// 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(Caret_Quit, MyFrame::OnQuit)
EVT_MENU(Caret_About, MyFrame::OnAbout)
EVT_MENU(Caret_SetBlinkTime, MyFrame::OnSetBlinkTime)
+ EVT_MENU(Caret_SetFontSize, MyFrame::OnSetFontSize)
EVT_MENU(Caret_Move, MyFrame::OnCaretMove)
END_EVENT_TABLE()
-// Create a new application object: this macro will allow wxWindows to create
+// Create a new application object: this macro will allow wxWidgets to create
// the application object during program execution (it's better than using a
// static object for many reasons) and also declares the accessor function
// wxGetApp() which will return the reference of the right type (i.e. MyApp and
// `Main program' equivalent: the program execution "starts" here
bool MyApp::OnInit()
{
+ if ( !wxApp::OnInit() )
+ return false;
+
// create and show the main application window
- MyFrame *frame = new MyFrame(_T("Caret wxWindows sample"),
+ MyFrame *frame = new MyFrame(_T("Caret wxWidgets sample"),
wxPoint(50, 50), wxSize(450, 340));
- frame->Show(TRUE);
+ frame->Show(true);
// success: wxApp::OnRun() will be called which will enter the main message
- // loop and the application will run. If we returned FALSE here, the
+ // loop and the application will run. If we returned false here, the
// application would exit immediately.
- return TRUE;
+ return true;
}
// ----------------------------------------------------------------------------
// frame constructor
MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
- : wxFrame((wxFrame *)NULL, -1, title, pos, size)
+ : wxFrame((wxFrame *)NULL, wxID_ANY, title, pos, size)
{
// set the frame icon
SetIcon(wxICON(mondrian));
wxMenu *menuFile = new wxMenu;
menuFile->Append(Caret_SetBlinkTime, _T("&Blink time...\tCtrl-B"));
+ menuFile->Append(Caret_SetFontSize, _T("&Font size...\tCtrl-S"));
menuFile->Append(Caret_Move, _T("&Move caret\tCtrl-C"));
menuFile->AppendSeparator();
menuFile->Append(Caret_About, _T("&About...\tCtrl-A"), _T("Show about dialog"));
m_canvas = new MyCanvas(this);
+#if wxUSE_STATUSBAR
// create a status bar just for fun (by default with 1 pane only)
CreateStatusBar(2);
- SetStatusText(_T("Welcome to wxWindows!"));
+ SetStatusText(_T("Welcome to wxWidgets!"));
+#endif // wxUSE_STATUSBAR
}
void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
- // TRUE is to force the frame to close
- Close(TRUE);
+ // true is to force the frame to close
+ Close(true);
}
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
- wxMessageBox(_T("The caret wxWindows sample.\n© 1999 Vadim Zeitlin"),
+ wxMessageBox(_T("The caret wxWidgets sample.\n(c) 1999 Vadim Zeitlin"),
_T("About Caret"), wxOK | wxICON_INFORMATION, this);
}
}
}
+void MyFrame::OnSetFontSize(wxCommandEvent& WXUNUSED(event))
+{
+ long fontSize = wxGetNumberFromUser
+ (
+ _T("The font size also determines the caret size so\nthis demonstrates resizing the caret."),
+ _T("Font size (in points):"),
+ _T("wxCaret sample"),
+ 12, 1, 100,
+ this
+ );
+
+ if ( fontSize != -1 )
+ {
+ m_canvas->SetFontSize((int)fontSize);
+ }
+}
+
// ----------------------------------------------------------------------------
// MyCanvas
// ----------------------------------------------------------------------------
END_EVENT_TABLE()
MyCanvas::MyCanvas( wxWindow *parent )
- : wxScrolledWindow( parent, -1,
+ : wxScrolledWindow( parent, wxID_ANY,
wxDefaultPosition, wxDefaultSize,
wxSUNKEN_BORDER )
{
SetBackgroundColour(*wxWHITE);
- m_font = wxFont(12, wxFONTFAMILY_TELETYPE,
- wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL);
+ SetFontSize(12);
m_xCaret = m_yCaret =
m_xChars = m_yChars = 0;
void MyCanvas::CreateCaret()
{
+ wxCaret *caret = new wxCaret(this, m_widthChar, m_heightChar);
+ SetCaret(caret);
+
+ caret->Move(m_xMargin, m_yMargin);
+ caret->Show();
+}
+
+void MyCanvas::SetFontSize(int fontSize)
+{
+ m_font = wxFont(fontSize, wxFONTFAMILY_TELETYPE,
+ wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL);
+
wxClientDC dc(this);
dc.SetFont(m_font);
m_heightChar = dc.GetCharHeight();
m_widthChar = dc.GetCharWidth();
- wxCaret *caret = new wxCaret(this, m_widthChar, m_heightChar);
- SetCaret(caret);
+ wxCaret *caret = GetCaret();
+ if ( caret )
+ {
+ caret->SetSize(m_widthChar, m_heightChar);
- caret->Move(m_xMargin, m_yMargin);
- caret->Show();
+ ChangeSize();
+ }
}
void MyCanvas::MoveCaret(int x, int y)
m_yMargin + m_yCaret * m_heightChar);
}
-void MyCanvas::OnSize( wxSizeEvent &event )
+void MyCanvas::OnSize(wxSizeEvent& event)
{
- m_xChars = (event.GetSize().x - 2*m_xMargin) / m_widthChar;
- m_yChars = (event.GetSize().y - 2*m_yMargin) / m_heightChar;
+ ChangeSize();
+
+ event.Skip();
+}
+
+void MyCanvas::ChangeSize()
+{
+ wxSize size = GetClientSize();
+ m_xChars = (size.x - 2*m_xMargin) / m_widthChar;
+ m_yChars = (size.y - 2*m_yMargin) / m_heightChar;
if ( !m_xChars )
m_xChars = 1;
if ( !m_yChars )
free(m_text);
m_text = (wxChar *)calloc(m_xChars * m_yChars, sizeof(wxChar));
+#if wxUSE_STATUSBAR
wxFrame *frame = wxDynamicCast(GetParent(), wxFrame);
if ( frame && frame->GetStatusBar() )
{
wxString msg;
msg.Printf(_T("Panel size is (%d, %d)"), m_xChars, m_yChars);
-
frame->SetStatusText(msg, 1);
}
-
- event.Skip();
+#endif // wxUSE_STATUSBAR
}
// NB: this method is horrible inefficient especially because the caret
projects / wxWidgets.git / blobdiff