528 lines
15 KiB
C++
528 lines
15 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: keyboard.cpp
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// Purpose: Keyboard wxWidgets sample
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// Author: Vadim Zeitlin
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// Modified by: Marcin Wojdyr
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// Created: 07.04.02
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// Copyright: (c) 2002 Vadim Zeitlin
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#include "wx/wx.h"
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#endif
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#ifndef wxHAS_IMAGES_IN_RESOURCES
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#include "../sample.xpm"
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#endif
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// IDs for menu items
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enum
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{
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QuitID = wxID_EXIT,
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ClearID = wxID_CLEAR,
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SkipHook = 100,
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SkipDown,
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// These IDs must be in the same order as MyFrame::InputKind enum elements.
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IDInputCustom,
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IDInputEntry,
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IDInputText,
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TestAccelA,
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TestAccelCtrlA,
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TestAccelEsc
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};
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// Define a new frame type: this is going to be our main frame
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class MyFrame : public wxFrame
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{
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public:
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MyFrame(const wxString& title);
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private:
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// event handlers
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void OnQuit(wxCommandEvent& WXUNUSED(event)) { Close(true); }
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void OnAbout(wxCommandEvent& event);
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void OnInputWindowKind(wxCommandEvent& event);
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void OnTestAccelA(wxCommandEvent& WXUNUSED(event))
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{ m_logText->AppendText("Test accelerator \"A\" used.\n"); }
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void OnTestAccelCtrlA(wxCommandEvent& WXUNUSED(event))
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{ m_logText->AppendText("Test accelerator \"Ctrl-A\" used.\n"); }
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void OnTestAccelEsc(wxCommandEvent& WXUNUSED(event))
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{ m_logText->AppendText("Test accelerator \"Esc\" used.\n"); }
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void OnClear(wxCommandEvent& WXUNUSED(event)) { m_logText->Clear(); }
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void OnSkipDown(wxCommandEvent& event) { m_skipDown = event.IsChecked(); }
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void OnSkipHook(wxCommandEvent& event) { m_skipHook = event.IsChecked(); }
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void OnKeyDown(wxKeyEvent& event)
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{
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LogEvent("KeyDown", event);
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if ( m_skipDown )
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event.Skip();
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}
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void OnKeyUp(wxKeyEvent& event) { LogEvent("KeyUp", event); }
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void OnChar(wxKeyEvent& event) { LogEvent("Char", event); event.Skip(); }
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void OnCharHook(wxKeyEvent& event)
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{
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// The logged messages can be confusing if the input window doesn't
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// have focus so warn about this.
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if ( !m_inputWin->HasFocus() )
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{
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m_logText->SetDefaultStyle(*wxRED);
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m_logText->AppendText("WARNING: focus is not on input window, "
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"non-hook events won't be logged.\n");
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m_logText->SetDefaultStyle(wxTextAttr());
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}
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LogEvent("Hook", event);
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if ( m_skipHook )
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event.Skip();
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}
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void OnPaintInputWin(wxPaintEvent& event);
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void LogEvent(const wxString& name, wxKeyEvent& event);
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// Set m_inputWin to either a new window of the given kind:
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enum InputKind
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{
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Input_Custom, // Just a plain wxWindow
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Input_Entry, // Single-line wxTextCtrl
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Input_Text // Multi-line wxTextCtrl
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};
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void DoCreateInputWindow(InputKind inputKind);
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wxTextCtrl *m_logText;
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wxWindow *m_inputWin;
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bool m_skipHook,
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m_skipDown;
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};
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// Define a new application type, each program should derive a class from wxApp
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class MyApp : public wxApp
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{
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public:
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// 'Main program' equivalent: the program execution "starts" here
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virtual bool OnInit()
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{
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// create the main application window
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new MyFrame("Keyboard wxWidgets App");
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// If we returned false here, the application would exit immediately.
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return true;
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}
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};
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// Create a new application object: this macro will allow wxWidgets to create
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// the application object during program execution (it's better than using a
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// static object for many reasons) and also declares the accessor function
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// wxGetApp() which will return the reference of the right type (i.e. MyApp and
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// not wxApp)
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IMPLEMENT_APP(MyApp)
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// ============================================================================
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// implementation
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// ============================================================================
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// frame constructor
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MyFrame::MyFrame(const wxString& title)
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: wxFrame(NULL, wxID_ANY, title),
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m_inputWin(NULL),
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m_skipHook(true),
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m_skipDown(true)
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{
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SetIcon(wxICON(sample));
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// create a menu bar
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wxMenu *menuFile = new wxMenu;
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menuFile->Append(ClearID, "&Clear log\tCtrl-L");
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menuFile->AppendSeparator();
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menuFile->Append(TestAccelA, "Test accelerator &1\tA");
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menuFile->Append(TestAccelCtrlA, "Test accelerator &2\tCtrl-A");
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menuFile->Append(TestAccelEsc, "Test accelerator &3\tEsc");
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menuFile->AppendSeparator();
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menuFile->AppendCheckItem(SkipHook, "Skip CHAR_HOOK event",
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"Not skipping this event disables both KEY_DOWN and CHAR events"
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);
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menuFile->Check(SkipHook, true);
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menuFile->AppendCheckItem(SkipDown, "Skip KEY_DOWN event",
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"Not skipping this event disables CHAR event generation"
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);
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menuFile->Check(SkipDown, true);
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menuFile->AppendSeparator();
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menuFile->AppendRadioItem(IDInputCustom, "Use &custom control\tCtrl-C",
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"Use custom wxWindow for input window"
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);
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menuFile->AppendRadioItem(IDInputEntry, "Use text &entry\tCtrl-E",
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"Use single-line wxTextCtrl for input window"
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);
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menuFile->AppendRadioItem(IDInputText, "Use &text control\tCtrl-T",
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"Use multi-line wxTextCtrl for input window"
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);
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menuFile->AppendSeparator();
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menuFile->Append(QuitID, "E&xit\tAlt-X", "Quit this program");
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// the "About" item should be in the help menu
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wxMenu *menuHelp = new wxMenu;
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menuHelp->Append(wxID_ABOUT, "&About\tF1", "Show about dialog");
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// now append the freshly created menu to the menu bar...
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wxMenuBar *menuBar = new wxMenuBar();
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menuBar->Append(menuFile, "&File");
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menuBar->Append(menuHelp, "&Help");
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// ... and attach this menu bar to the frame
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SetMenuBar(menuBar);
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DoCreateInputWindow(Input_Custom);
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wxTextCtrl *headerText = new wxTextCtrl(this, wxID_ANY, "",
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wxDefaultPosition, wxDefaultSize,
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wxTE_READONLY);
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headerText->SetValue(
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" event key KeyCode mod UnicodeKey "
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" RawKeyCode RawKeyFlags Position");
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m_logText = new wxTextCtrl(this, wxID_ANY, "",
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wxDefaultPosition, wxDefaultSize,
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wxTE_MULTILINE|wxTE_READONLY|wxTE_RICH|wxHSCROLL);
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// set monospace font to have output in nice columns
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wxFont font(10, wxFONTFAMILY_TELETYPE,
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wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL);
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headerText->SetFont(font);
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m_logText->SetFont(font);
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// layout
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wxBoxSizer *sizer = new wxBoxSizer(wxVERTICAL);
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sizer->Add(m_inputWin, wxSizerFlags().Expand());
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sizer->Add(headerText, wxSizerFlags().Expand());
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sizer->Add(m_logText, wxSizerFlags(1).Expand());
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SetSizerAndFit(sizer);
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// set size and position on screen
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SetSize(700, 340);
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CentreOnScreen();
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// connect menu event handlers
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Connect(QuitID, wxEVT_MENU,
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wxCommandEventHandler(MyFrame::OnQuit));
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Connect(wxID_ABOUT, wxEVT_MENU,
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wxCommandEventHandler(MyFrame::OnAbout));
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Connect(ClearID, wxEVT_MENU,
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wxCommandEventHandler(MyFrame::OnClear));
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Connect(SkipHook, wxEVT_MENU,
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wxCommandEventHandler(MyFrame::OnSkipHook));
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Connect(SkipDown, wxEVT_MENU,
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wxCommandEventHandler(MyFrame::OnSkipDown));
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Connect(IDInputCustom, IDInputText, wxEVT_MENU,
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wxCommandEventHandler(MyFrame::OnInputWindowKind));
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Connect(TestAccelA, wxEVT_MENU,
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wxCommandEventHandler(MyFrame::OnTestAccelA));
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Connect(TestAccelCtrlA, wxEVT_MENU,
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wxCommandEventHandler(MyFrame::OnTestAccelCtrlA));
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Connect(TestAccelEsc, wxEVT_MENU,
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wxCommandEventHandler(MyFrame::OnTestAccelEsc));
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// notice that we don't connect OnCharHook() to the input window, unlike
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// the usual key events this one is propagated upwards
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Connect(wxEVT_CHAR_HOOK, wxKeyEventHandler(MyFrame::OnCharHook));
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// status bar is useful for showing the menu items help strings
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CreateStatusBar();
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// and show itself (the frames, unlike simple controls, are not shown when
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// created initially)
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Show(true);
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}
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// event handlers
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void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
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{
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wxMessageBox("Demonstrates keyboard event processing in wxWidgets\n"
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"(c) 2002 Vadim Zeitlin\n"
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"(c) 2008 Marcin Wojdyr",
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"About wxWidgets Keyboard Sample",
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wxOK | wxICON_INFORMATION, this);
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}
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void MyFrame::DoCreateInputWindow(InputKind inputKind)
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{
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wxWindow* const oldWin = m_inputWin;
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switch ( inputKind )
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{
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case Input_Custom:
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m_inputWin = new wxWindow(this, wxID_ANY,
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wxDefaultPosition, wxSize(-1, 50),
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wxRAISED_BORDER);
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break;
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case Input_Entry:
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m_inputWin = new wxTextCtrl(this, wxID_ANY, "Press keys here");
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break;
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case Input_Text:
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m_inputWin = new wxTextCtrl(this, wxID_ANY, "Press keys here",
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wxDefaultPosition, wxSize(-1, 50),
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wxTE_MULTILINE);
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break;
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}
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m_inputWin->SetBackgroundColour(*wxBLUE);
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m_inputWin->SetForegroundColour(*wxWHITE);
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// connect event handlers for the blue input window
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m_inputWin->Connect(wxEVT_KEY_DOWN, wxKeyEventHandler(MyFrame::OnKeyDown),
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NULL, this);
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m_inputWin->Connect(wxEVT_KEY_UP, wxKeyEventHandler(MyFrame::OnKeyUp),
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NULL, this);
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m_inputWin->Connect(wxEVT_CHAR, wxKeyEventHandler(MyFrame::OnChar),
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NULL, this);
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if ( inputKind == Input_Custom )
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{
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m_inputWin->Connect(wxEVT_PAINT,
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wxPaintEventHandler(MyFrame::OnPaintInputWin),
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NULL, this);
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}
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if ( oldWin )
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{
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GetSizer()->Replace(oldWin, m_inputWin);
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Layout();
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delete oldWin;
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}
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}
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void MyFrame::OnInputWindowKind(wxCommandEvent& event)
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{
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DoCreateInputWindow(
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static_cast<InputKind>(event.GetId() - IDInputCustom)
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);
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}
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void MyFrame::OnPaintInputWin(wxPaintEvent& WXUNUSED(event))
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{
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wxPaintDC dc(m_inputWin);
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dc.SetTextForeground(*wxWHITE);
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wxFont font(*wxSWISS_FONT);
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font.SetWeight(wxFONTWEIGHT_BOLD);
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font.SetPointSize(font.GetPointSize() + 2);
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dc.SetFont(font);
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dc.DrawLabel("Press keys here",
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m_inputWin->GetClientRect(), wxALIGN_CENTER);
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}
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// helper function that returns textual description of wx virtual keycode
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const char* GetVirtualKeyCodeName(int keycode)
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{
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switch ( keycode )
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{
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#define WXK_(x) \
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case WXK_##x: return #x;
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WXK_(BACK)
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WXK_(TAB)
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WXK_(RETURN)
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WXK_(ESCAPE)
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WXK_(SPACE)
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WXK_(DELETE)
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WXK_(START)
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WXK_(LBUTTON)
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WXK_(RBUTTON)
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WXK_(CANCEL)
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WXK_(MBUTTON)
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WXK_(CLEAR)
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WXK_(SHIFT)
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WXK_(ALT)
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WXK_(CONTROL)
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WXK_(MENU)
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WXK_(PAUSE)
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WXK_(CAPITAL)
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WXK_(END)
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WXK_(HOME)
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WXK_(LEFT)
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WXK_(UP)
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WXK_(RIGHT)
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WXK_(DOWN)
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WXK_(SELECT)
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WXK_(PRINT)
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WXK_(EXECUTE)
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WXK_(SNAPSHOT)
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WXK_(INSERT)
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WXK_(HELP)
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WXK_(NUMPAD0)
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WXK_(NUMPAD1)
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WXK_(NUMPAD2)
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WXK_(NUMPAD3)
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WXK_(NUMPAD4)
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WXK_(NUMPAD5)
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WXK_(NUMPAD6)
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WXK_(NUMPAD7)
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WXK_(NUMPAD8)
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WXK_(NUMPAD9)
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WXK_(MULTIPLY)
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WXK_(ADD)
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WXK_(SEPARATOR)
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WXK_(SUBTRACT)
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WXK_(DECIMAL)
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WXK_(DIVIDE)
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WXK_(F1)
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WXK_(F2)
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WXK_(F3)
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WXK_(F4)
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WXK_(F5)
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WXK_(F6)
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WXK_(F7)
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WXK_(F8)
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WXK_(F9)
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WXK_(F10)
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WXK_(F11)
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WXK_(F12)
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WXK_(F13)
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WXK_(F14)
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WXK_(F15)
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WXK_(F16)
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WXK_(F17)
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WXK_(F18)
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WXK_(F19)
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WXK_(F20)
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WXK_(F21)
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WXK_(F22)
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WXK_(F23)
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WXK_(F24)
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WXK_(NUMLOCK)
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WXK_(SCROLL)
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WXK_(PAGEUP)
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WXK_(PAGEDOWN)
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WXK_(NUMPAD_SPACE)
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WXK_(NUMPAD_TAB)
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WXK_(NUMPAD_ENTER)
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WXK_(NUMPAD_F1)
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WXK_(NUMPAD_F2)
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WXK_(NUMPAD_F3)
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WXK_(NUMPAD_F4)
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WXK_(NUMPAD_HOME)
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WXK_(NUMPAD_LEFT)
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WXK_(NUMPAD_UP)
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WXK_(NUMPAD_RIGHT)
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WXK_(NUMPAD_DOWN)
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WXK_(NUMPAD_PAGEUP)
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WXK_(NUMPAD_PAGEDOWN)
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WXK_(NUMPAD_END)
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WXK_(NUMPAD_BEGIN)
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WXK_(NUMPAD_INSERT)
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WXK_(NUMPAD_DELETE)
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WXK_(NUMPAD_EQUAL)
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WXK_(NUMPAD_MULTIPLY)
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WXK_(NUMPAD_ADD)
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WXK_(NUMPAD_SEPARATOR)
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WXK_(NUMPAD_SUBTRACT)
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WXK_(NUMPAD_DECIMAL)
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WXK_(NUMPAD_DIVIDE)
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WXK_(WINDOWS_LEFT)
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WXK_(WINDOWS_RIGHT)
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#ifdef __WXOSX__
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WXK_(RAW_CONTROL)
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#endif
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#undef WXK_
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default:
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return NULL;
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}
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}
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// helper function that returns textual description of key in the event
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wxString GetKeyName(const wxKeyEvent &event)
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{
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int keycode = event.GetKeyCode();
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const char* virt = GetVirtualKeyCodeName(keycode);
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if ( virt )
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return virt;
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if ( keycode > 0 && keycode < 32 )
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return wxString::Format("Ctrl-%c", (unsigned char)('A' + keycode - 1));
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if ( keycode >= 32 && keycode < 128 )
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return wxString::Format("'%c'", (unsigned char)keycode);
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#if wxUSE_UNICODE
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int uc = event.GetUnicodeKey();
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if ( uc != WXK_NONE )
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return wxString::Format("'%c'", uc);
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#endif
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return "unknown";
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}
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void MyFrame::LogEvent(const wxString& name, wxKeyEvent& event)
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{
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wxString msg;
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// event key_name KeyCode modifiers Unicode raw_code raw_flags pos
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msg.Printf("%7s %15s %5d %c%c%c%c"
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#if wxUSE_UNICODE
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"%5d (U+%04x)"
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#else
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" none "
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#endif
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#ifdef wxHAS_RAW_KEY_CODES
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" %7lu 0x%08lx"
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#else
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" not-set not-set"
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#endif
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" (%5d,%5d)"
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"\n",
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name,
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GetKeyName(event),
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event.GetKeyCode(),
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event.ControlDown() ? 'C' : '-',
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event.AltDown() ? 'A' : '-',
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event.ShiftDown() ? 'S' : '-',
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event.MetaDown() ? 'M' : '-'
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#if wxUSE_UNICODE
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, event.GetUnicodeKey()
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, event.GetUnicodeKey()
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#endif
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#ifdef wxHAS_RAW_KEY_CODES
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, (unsigned long) event.GetRawKeyCode()
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, (unsigned long) event.GetRawKeyFlags()
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#endif
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, event.GetX()
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, event.GetY()
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);
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m_logText->AppendText(msg);
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}
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