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wxWidgets/samples/keyboard/keyboard.cpp
Francesco Montorsi 41f02b9acc always call SetIcon() on the main frame of the sample; some small cleanup 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@58744 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2009-02-08 01:01:00 +00:00

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/////////////////////////////////////////////////////////////////////////////
// Name: keyboard.cpp
// Purpose: Keyboard wxWidgets sample
// Author: Vadim Zeitlin
// Modified by: Marcin Wojdyr
// Created: 07.04.02
// RCS-ID: $Id$
// Copyright: (c) 2002 Vadim Zeitlin
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif
#ifndef __WXMSW__
#include "../sample.xpm"
#endif
// Define a new frame type: this is going to be our main frame
class MyFrame : public wxFrame
{
public:
MyFrame(const wxString& title);
private:
// event handlers
void OnQuit(wxCommandEvent& WXUNUSED(event)) { Close(true); }
void OnAbout(wxCommandEvent& event);
void OnClear(wxCommandEvent& WXUNUSED(event)) { m_logText->Clear(); }
void OnSkip(wxCommandEvent& event) { m_skip = event.IsChecked(); }
void OnKeyDown(wxKeyEvent& event) { LogEvent("KeyDown", event); }
void OnKeyUp(wxKeyEvent& event) { LogEvent("KeyUp", event); }
void OnChar(wxKeyEvent& event) { LogEvent("Char", event); }
void OnPaintInputWin(wxPaintEvent& event);
void LogEvent(const wxString& name, wxKeyEvent& event);
wxTextCtrl *m_logText;
wxWindow *m_inputWin;
bool m_skip;
};
// Define a new application type, each program should derive a class from wxApp
class MyApp : public wxApp
{
public:
// 'Main program' equivalent: the program execution "starts" here
virtual bool OnInit()
{
// create the main application window
new MyFrame("Keyboard wxWidgets App");
// If we returned false here, the application would exit immediately.
return true;
}
};
// 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
// not wxApp)
IMPLEMENT_APP(MyApp)
// ============================================================================
// implementation
// ============================================================================
// frame constructor
MyFrame::MyFrame(const wxString& title)
: wxFrame(NULL, wxID_ANY, title),
m_inputWin(NULL),
m_skip(true)
{
SetIcon(wxICON(sample));
// IDs for menu items
enum
{
QuitID = wxID_EXIT,
ClearID = wxID_CLEAR,
SkipID = 100,
};
// create a menu bar
wxMenu *menuFile = new wxMenu;
menuFile->Append(ClearID, "&Clear log\tCtrl-L");
menuFile->AppendSeparator();
menuFile->AppendCheckItem(SkipID, "Call event.&Skip()\tCtrl-S");
menuFile->Check(SkipID, true);
menuFile->AppendSeparator();
menuFile->Append(QuitID, "E&xit\tAlt-X", "Quit this program");
// the "About" item should be in the help menu
wxMenu *menuHelp = new wxMenu;
menuHelp->Append(wxID_ABOUT, "&About...\tF1", "Show about dialog");
// now append the freshly created menu to the menu bar...
wxMenuBar *menuBar = new wxMenuBar();
menuBar->Append(menuFile, "&File");
menuBar->Append(menuHelp, "&Help");
// ... and attach this menu bar to the frame
SetMenuBar(menuBar);
m_inputWin = new wxWindow(this, wxID_ANY, wxDefaultPosition, wxSize(-1, 50),
wxRAISED_BORDER),
m_inputWin->SetBackgroundColour(*wxBLUE);
wxTextCtrl *headerText = new wxTextCtrl(this, wxID_ANY, "",
wxDefaultPosition, wxDefaultSize,
wxTE_READONLY);
headerText->SetValue(
" event key KeyCode mod UnicodeKey "
" RawKeyCode RawKeyFlags");
m_logText = new wxTextCtrl(this, wxID_ANY, "",
wxDefaultPosition, wxDefaultSize,
wxTE_MULTILINE|wxTE_READONLY|wxHSCROLL);
// set monospace font to have output in nice columns
wxFont font(10, wxFONTFAMILY_TELETYPE,
wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL);
headerText->SetFont(font);
m_logText->SetFont(font);
// layout
wxBoxSizer *sizer = new wxBoxSizer(wxVERTICAL);
sizer->Add(m_inputWin, wxSizerFlags().Expand());
sizer->Add(headerText, wxSizerFlags().Expand());
sizer->Add(m_logText, wxSizerFlags(1).Expand());
SetSizerAndFit(sizer);
// set size and position on screen
SetSize(700, 340);
CentreOnScreen();
// connect menu event handlers
Connect(QuitID, wxEVT_COMMAND_MENU_SELECTED,
wxCommandEventHandler(MyFrame::OnQuit));
Connect(wxID_ABOUT, wxEVT_COMMAND_MENU_SELECTED,
wxCommandEventHandler(MyFrame::OnAbout));
Connect(ClearID, wxEVT_COMMAND_MENU_SELECTED,
wxCommandEventHandler(MyFrame::OnClear));
Connect(SkipID, wxEVT_COMMAND_MENU_SELECTED,
wxCommandEventHandler(MyFrame::OnSkip));
// connect event handlers for the blue input window
m_inputWin->Connect(wxEVT_KEY_DOWN, wxKeyEventHandler(MyFrame::OnKeyDown),
NULL, this);
m_inputWin->Connect(wxEVT_KEY_UP, wxKeyEventHandler(MyFrame::OnKeyUp),
NULL, this);
m_inputWin->Connect(wxEVT_CHAR, wxKeyEventHandler(MyFrame::OnChar),
NULL, this);
m_inputWin->Connect(wxEVT_PAINT,
wxPaintEventHandler(MyFrame::OnPaintInputWin),
NULL, this);
// and show itself (the frames, unlike simple controls, are not shown when
// created initially)
Show(true);
}
// event handlers
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
wxMessageBox("Demonstrates keyboard event processing in wxWidgets\n"
"(c) 2002 Vadim Zeitlin\n"
"(c) 2008 Marcin Wojdyr",
"About wxWidgets Keyboard Sample",
wxOK | wxICON_INFORMATION, this);
}
void MyFrame::OnPaintInputWin(wxPaintEvent& WXUNUSED(event))
{
wxPaintDC dc(m_inputWin);
dc.SetTextForeground(*wxWHITE);
wxFont font(*wxSWISS_FONT);
font.SetWeight(wxFONTWEIGHT_BOLD);
font.SetPointSize(font.GetPointSize() + 2);
dc.SetFont(font);
dc.DrawLabel("Press keys here",
m_inputWin->GetClientRect(), wxALIGN_CENTER);
}
// helper function that returns textual description of wx virtual keycode
const char* GetVirtualKeyCodeName(int keycode)
{
switch ( keycode )
{
#define WXK_(x) \
case WXK_##x: return #x;
WXK_(BACK)
WXK_(TAB)
WXK_(RETURN)
WXK_(ESCAPE)
WXK_(SPACE)
WXK_(DELETE)
WXK_(START)
WXK_(LBUTTON)
WXK_(RBUTTON)
WXK_(CANCEL)
WXK_(MBUTTON)
WXK_(CLEAR)
WXK_(SHIFT)
WXK_(ALT)
WXK_(CONTROL)
WXK_(MENU)
WXK_(PAUSE)
WXK_(CAPITAL)
WXK_(END)
WXK_(HOME)
WXK_(LEFT)
WXK_(UP)
WXK_(RIGHT)
WXK_(DOWN)
WXK_(SELECT)
WXK_(PRINT)
WXK_(EXECUTE)
WXK_(SNAPSHOT)
WXK_(INSERT)
WXK_(HELP)
WXK_(NUMPAD0)
WXK_(NUMPAD1)
WXK_(NUMPAD2)
WXK_(NUMPAD3)
WXK_(NUMPAD4)
WXK_(NUMPAD5)
WXK_(NUMPAD6)
WXK_(NUMPAD7)
WXK_(NUMPAD8)
WXK_(NUMPAD9)
WXK_(MULTIPLY)
WXK_(ADD)
WXK_(SEPARATOR)
WXK_(SUBTRACT)
WXK_(DECIMAL)
WXK_(DIVIDE)
WXK_(F1)
WXK_(F2)
WXK_(F3)
WXK_(F4)
WXK_(F5)
WXK_(F6)
WXK_(F7)
WXK_(F8)
WXK_(F9)
WXK_(F10)
WXK_(F11)
WXK_(F12)
WXK_(F13)
WXK_(F14)
WXK_(F15)
WXK_(F16)
WXK_(F17)
WXK_(F18)
WXK_(F19)
WXK_(F20)
WXK_(F21)
WXK_(F22)
WXK_(F23)
WXK_(F24)
WXK_(NUMLOCK)
WXK_(SCROLL)
WXK_(PAGEUP)
WXK_(PAGEDOWN)
WXK_(NUMPAD_SPACE)
WXK_(NUMPAD_TAB)
WXK_(NUMPAD_ENTER)
WXK_(NUMPAD_F1)
WXK_(NUMPAD_F2)
WXK_(NUMPAD_F3)
WXK_(NUMPAD_F4)
WXK_(NUMPAD_HOME)
WXK_(NUMPAD_LEFT)
WXK_(NUMPAD_UP)
WXK_(NUMPAD_RIGHT)
WXK_(NUMPAD_DOWN)
WXK_(NUMPAD_PAGEUP)
WXK_(NUMPAD_PAGEDOWN)
WXK_(NUMPAD_END)
WXK_(NUMPAD_BEGIN)
WXK_(NUMPAD_INSERT)
WXK_(NUMPAD_DELETE)
WXK_(NUMPAD_EQUAL)
WXK_(NUMPAD_MULTIPLY)
WXK_(NUMPAD_ADD)
WXK_(NUMPAD_SEPARATOR)
WXK_(NUMPAD_SUBTRACT)
WXK_(NUMPAD_DECIMAL)
WXK_(NUMPAD_DIVIDE)
#undef WXK_
default:
return NULL;
}
}
// helper function that returns textual description of key in the event
wxString GetKeyName(const wxKeyEvent &event)
{
int keycode = event.GetKeyCode();
const char* virt = GetVirtualKeyCodeName(keycode);
if ( virt )
return virt;
if ( keycode > 0 && keycode < 27 )
return wxString::Format("Ctrl-%c", (unsigned char)('A' + keycode - 1));
if ( keycode >= 27 && keycode < 128 )
return wxString::Format("'%c'", (unsigned char)keycode);
#if wxUSE_UNICODE
return wxString::Format("'%c'", event.GetUnicodeKey());
#else
return "unknown";
#endif
}
void MyFrame::LogEvent(const wxString& name, wxKeyEvent& event)
{
wxString msg;
// event key_name KeyCode modifiers Unicode raw_code raw_flags
msg.Printf("%7s %15s %5d %c%c%c%c"
#if wxUSE_UNICODE
"%5d (U+%04x)"
#else
" none "
#endif
#ifdef wxHAS_RAW_KEY_CODES
" %7lu 0x%lx"
#else
" not-set not-set"
#endif
"\n",
name,
GetKeyName(event),
event.GetKeyCode(),
event.ControlDown() ? 'C' : '-',
event.AltDown() ? 'A' : '-',
event.ShiftDown() ? 'S' : '-',
event.MetaDown() ? 'M' : '-'
#if wxUSE_UNICODE
, event.GetUnicodeKey()
, event.GetUnicodeKey()
#endif
#ifdef wxHAS_RAW_KEY_CODES
, (unsigned long) event.GetRawKeyCode()
, (unsigned long) event.GetRawKeyFlags()
#endif
);
m_logText->AppendText(msg);
if ( m_skip )
event.Skip();
}
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