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Signed-off-by: Peter Siegmund <mars3142@noreply.mars3142.dev>
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Peter Siegmund
2025-10-31 23:37:30 +01:00
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libs/wxWidgets-3.3.1/samples/keyboard/keyboard.cpp Normal file
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/////////////////////////////////////////////////////////////////////////////
// Name: keyboard.cpp
// Purpose: Keyboard wxWidgets sample
// Author: Vadim Zeitlin
// Modified by: Marcin Wojdyr
// Created: 07.04.02
// Copyright: (c) 2002 Vadim Zeitlin
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#include "wx/wxprec.h"
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif
#ifndef wxHAS_IMAGES_IN_RESOURCES
#include "../sample.xpm"
#endif
// IDs for menu items
enum
{
QuitID = wxID_EXIT,
ClearID = wxID_CLEAR,
SkipHook = 100,
SkipDown,
// These IDs must be in the same order as MyFrame::InputKind enum elements.
IDInputCustom,
IDInputEntry,
IDInputText,
#if wxUSE_HOTKEY
HotKeyRegister,
HotKeyUnregister,
#endif // wxUSE_HOTKEY
TestAccelA,
TestAccelCtrlA,
TestAccelEsc
};
// 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 OnInputWindowKind(wxCommandEvent& event);
void OnTestAccelA(wxCommandEvent& WXUNUSED(event))
{ m_logText->AppendText("Test accelerator \"A\" used.\n"); }
void OnTestAccelCtrlA(wxCommandEvent& WXUNUSED(event))
{ m_logText->AppendText("Test accelerator \"Ctrl-A\" used.\n"); }
void OnTestAccelEsc(wxCommandEvent& WXUNUSED(event))
{ m_logText->AppendText("Test accelerator \"Esc\" used.\n"); }
#if wxUSE_HOTKEY
void OnRegisterHotKey(wxCommandEvent& WXUNUSED(event))
{
if ( RegisterHotKey(0, wxMOD_ALT | wxMOD_SHIFT, WXK_HOME) )
{
m_logText->AppendText("Try pressing Alt-Shift-Home anywhere now.\n");
}
else
{
m_logText->AppendText("Failed to register hot key.\n");
}
}
void OnUnregisterHotKey(wxCommandEvent& WXUNUSED(event))
{
if ( !UnregisterHotKey(0) )
{
m_logText->AppendText("Failed to unregister hot key.\n");
}
}
void OnHotkey(wxKeyEvent& event)
{
LogEvent("Hot key", event);
}
#endif // wxUSE_HOTKEY
void OnClear(wxCommandEvent& WXUNUSED(event)) { m_logText->Clear(); }
void OnSkipDown(wxCommandEvent& event) { m_skipDown = event.IsChecked(); }
void OnSkipHook(wxCommandEvent& event) { m_skipHook = event.IsChecked(); }
void OnKeyDown(wxKeyEvent& event)
{
LogEvent("KeyDown", event);
if ( m_skipDown )
event.Skip();
}
void OnKeyUp(wxKeyEvent& event) { LogEvent("KeyUp", event); }
void OnChar(wxKeyEvent& event) { LogEvent("Char", event); event.Skip(); }
void OnCharHook(wxKeyEvent& event)
{
// The logged messages can be confusing if the input window doesn't
// have focus so warn about this.
if ( !m_inputWin->HasFocus() )
{
m_logText->SetDefaultStyle(*wxRED);
m_logText->AppendText("WARNING: focus is not on input window, "
"non-hook events won't be logged.\n");
m_logText->SetDefaultStyle(wxTextAttr());
}
LogEvent("Hook", event);
if ( m_skipHook )
event.Skip();
}
void OnPaintInputWin(wxPaintEvent& event);
void OnIdle(wxIdleEvent& event);
void LogEvent(const wxString& name, wxKeyEvent& event);
// Set m_inputWin to either a new window of the given kind:
enum InputKind
{
Input_Custom, // Just a plain wxWindow
Input_Entry, // Single-line wxTextCtrl
Input_Text // Multi-line wxTextCtrl
};
void DoCreateInputWindow(InputKind inputKind);
wxTextCtrl *m_logText;
wxWindow *m_inputWin;
bool m_skipHook,
m_skipDown;
};
// 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() override
{
// 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)
wxIMPLEMENT_APP(MyApp);
// ============================================================================
// implementation
// ============================================================================
// frame constructor
MyFrame::MyFrame(const wxString& title)
: wxFrame(nullptr, wxID_ANY, title),
m_inputWin(nullptr),
m_skipHook(true),
m_skipDown(true)
{
SetIcon(wxICON(sample));
// create a menu bar
wxMenu *menuFile = new wxMenu;
menuFile->Append(ClearID, "&Clear log\tCtrl-L");
menuFile->AppendSeparator();
menuFile->Append(TestAccelA, "Test accelerator &1\tA");
menuFile->Append(TestAccelCtrlA, "Test accelerator &2\tCtrl-A");
menuFile->Append(TestAccelEsc, "Test accelerator &3\tEsc");
menuFile->AppendSeparator();
menuFile->AppendCheckItem(SkipHook, "Skip CHAR_HOOK event",
"Not skipping this event disables both KEY_DOWN and CHAR events"
);
menuFile->Check(SkipHook, true);
menuFile->AppendCheckItem(SkipDown, "Skip KEY_DOWN event",
"Not skipping this event disables CHAR event generation"
);
menuFile->Check(SkipDown, true);
menuFile->AppendSeparator();
menuFile->AppendRadioItem(IDInputCustom, "Use &custom control\tCtrl-C",
"Use custom wxWindow for input window"
);
menuFile->AppendRadioItem(IDInputEntry, "Use text &entry\tCtrl-E",
"Use single-line wxTextCtrl for input window"
);
menuFile->AppendRadioItem(IDInputText, "Use &text control\tCtrl-T",
"Use multi-line wxTextCtrl for input window"
);
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");
#if wxUSE_HOTKEY
wxMenu* menuHotkey = new wxMenu;
menuHotkey->Append(HotKeyRegister, "&Register hot key");
menuHotkey->Append(HotKeyUnregister, "&Unregister hot key");
menuBar->Append(menuHotkey, "Hot&key");
#endif // wxUSE_HOTKEY
menuBar->Append(menuHelp, "&Help");
// ... and attach this menu bar to the frame
SetMenuBar(menuBar);
DoCreateInputWindow(Input_Custom);
wxTextCtrl *headerText = new wxTextCtrl(this, wxID_ANY, "",
wxDefaultPosition, wxDefaultSize,
wxTE_READONLY);
headerText->SetValue(
" event key KeyCode mod UnicodeKey "
" RawKeyCode RawKeyFlags Position Repeat? Category");
m_logText = new wxTextCtrl(this, wxID_ANY, "",
wxDefaultPosition, wxDefaultSize,
wxTE_MULTILINE|wxTE_READONLY|wxTE_RICH|wxHSCROLL);
// set monospace font to have output in nice columns
wxFont font(wxFontInfo(10).Family(wxFONTFAMILY_TELETYPE));
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(FromDIP(wxSize(700, 340)));
CentreOnScreen();
// connect menu event handlers
Bind(wxEVT_MENU, &MyFrame::OnQuit, this, QuitID);
Bind(wxEVT_MENU, &MyFrame::OnAbout, this, wxID_ABOUT);
Bind(wxEVT_MENU, &MyFrame::OnClear, this, ClearID);
Bind(wxEVT_MENU, &MyFrame::OnSkipHook, this, SkipHook);
Bind(wxEVT_MENU, &MyFrame::OnSkipDown, this, SkipDown);
Bind(wxEVT_MENU, &MyFrame::OnInputWindowKind, this, IDInputCustom, IDInputText);
Bind(wxEVT_MENU, &MyFrame::OnTestAccelA, this, TestAccelA);
Bind(wxEVT_MENU, &MyFrame::OnTestAccelCtrlA, this, TestAccelCtrlA);
Bind(wxEVT_MENU, &MyFrame::OnTestAccelEsc, this, TestAccelEsc);
#if wxUSE_HOTKEY
Bind(wxEVT_MENU, &MyFrame::OnRegisterHotKey, this, HotKeyRegister);
Bind(wxEVT_MENU, &MyFrame::OnUnregisterHotKey, this, HotKeyUnregister);
Bind(wxEVT_HOTKEY, &MyFrame::OnHotkey, this);
#endif // wxUSE_HOTKEY
// notice that we don't connect OnCharHook() to the input window, unlike
// the usual key events this one is propagated upwards
Bind(wxEVT_CHAR_HOOK, &MyFrame::OnCharHook, this);
Bind(wxEVT_IDLE, &MyFrame::OnIdle, this);
// second status bar field is used by OnIdle() to show the modifiers state
CreateStatusBar(2);
// 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::DoCreateInputWindow(InputKind inputKind)
{
wxWindow* const oldWin = m_inputWin;
switch ( inputKind )
{
case Input_Custom:
m_inputWin = new wxWindow(this, wxID_ANY,
wxDefaultPosition, wxSize(-1, 50),
wxRAISED_BORDER);
break;
case Input_Entry:
m_inputWin = new wxTextCtrl(this, wxID_ANY, "Press keys here");
break;
case Input_Text:
m_inputWin = new wxTextCtrl(this, wxID_ANY, "Press keys here",
wxDefaultPosition, wxSize(-1, 50),
wxTE_MULTILINE);
break;
}
m_inputWin->SetBackgroundColour(*wxBLUE);
m_inputWin->SetForegroundColour(*wxWHITE);
// connect event handlers for the blue input window
m_inputWin->Bind(wxEVT_KEY_DOWN, &MyFrame::OnKeyDown, this);
m_inputWin->Bind(wxEVT_KEY_UP, &MyFrame::OnKeyUp, this);
m_inputWin->Bind(wxEVT_CHAR, &MyFrame::OnChar, this);
if ( inputKind == Input_Custom )
{
m_inputWin->Bind(wxEVT_PAINT, &MyFrame::OnPaintInputWin, this);
}
if ( oldWin )
{
GetSizer()->Replace(oldWin, m_inputWin);
Layout();
delete oldWin;
}
}
void MyFrame::OnInputWindowKind(wxCommandEvent& event)
{
DoCreateInputWindow(
static_cast<InputKind>(event.GetId() - IDInputCustom)
);
}
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_(NUMPAD_CENTER)
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_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)
WXK_(WINDOWS_LEFT)
WXK_(WINDOWS_RIGHT)
#ifdef __WXOSX__
WXK_(RAW_CONTROL)
#endif
WXK_(BROWSER_BACK)
WXK_(BROWSER_FORWARD)
WXK_(BROWSER_REFRESH)
WXK_(BROWSER_STOP)
WXK_(BROWSER_SEARCH)
WXK_(BROWSER_FAVORITES)
WXK_(BROWSER_HOME)
WXK_(VOLUME_MUTE)
WXK_(VOLUME_DOWN)
WXK_(VOLUME_UP)
WXK_(MEDIA_NEXT_TRACK)
WXK_(MEDIA_PREV_TRACK)
WXK_(MEDIA_STOP)
WXK_(MEDIA_PLAY_PAUSE)
WXK_(LAUNCH_MAIL)
WXK_(LAUNCH_APP1)
WXK_(LAUNCH_APP2)
WXK_(LAUNCH_0)
WXK_(LAUNCH_1)
WXK_(LAUNCH_2)
WXK_(LAUNCH_3)
WXK_(LAUNCH_4)
WXK_(LAUNCH_5)
WXK_(LAUNCH_6)
WXK_(LAUNCH_7)
WXK_(LAUNCH_8)
WXK_(LAUNCH_9)
// skip A/B which are duplicate cases of APP1/2
WXK_(LAUNCH_C)
WXK_(LAUNCH_D)
WXK_(LAUNCH_E)
WXK_(LAUNCH_F)
#undef WXK_
default:
return nullptr;
}
}
// 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 < 32 )
return wxString::Format("Ctrl-%c", (unsigned char)('A' + keycode - 1));
if ( keycode >= 32 && keycode < 128 )
return wxString::Format("'%c'", (unsigned char)keycode);
int uc = event.GetUnicodeKey();
if ( uc != WXK_NONE )
return wxString::Format("'%c'", uc);
return "unknown";
}
// another helper showing the key category as determined by IsKeyInCategory().
wxString GetKeyCategory(const wxKeyEvent& event)
{
struct Category
{
wxKeyCategoryFlags category;
const char* name;
};
const Category categories[] =
{
{ WXK_CATEGORY_ARROW, "arrow" },
{ WXK_CATEGORY_PAGING, "page" },
{ WXK_CATEGORY_JUMP, "jump" },
{ WXK_CATEGORY_TAB, "tab" },
{ WXK_CATEGORY_CUT, "cut" },
};
for ( const auto& cat : categories )
{
if ( event.IsKeyInCategory(cat.category) )
return cat.name;
}
return {};
}
void MyFrame::LogEvent(const wxString& name, wxKeyEvent& event)
{
wxString msg;
// event key_name KeyCode modifiers Unicode raw_code raw_flags pos
msg.Printf("%7s %15s %5d %c%c%c%c"
"%5d (U+%04x)"
#ifdef wxHAS_RAW_KEY_CODES
" %7lu 0x%08lx"
#else
" not-set not-set"
#endif
" (%5d,%5d)"
" %s"
" %s"
"\n",
name,
GetKeyName(event),
event.GetKeyCode(),
event.ControlDown() ? 'C' : '-',
event.AltDown() ? 'A' : '-',
event.ShiftDown() ? 'S' : '-',
event.MetaDown() ? 'M' : '-'
, event.GetUnicodeKey()
, event.GetUnicodeKey()
#ifdef wxHAS_RAW_KEY_CODES
, (unsigned long) event.GetRawKeyCode()
, (unsigned long) event.GetRawKeyFlags()
#endif
, event.GetX()
, event.GetY()
, event.IsAutoRepeat() ? "Yes" : "No"
, GetKeyCategory(event)
);
m_logText->AppendText(msg);
}
void MyFrame::OnIdle(wxIdleEvent& WXUNUSED(event))
{
wxString state;
if ( wxGetKeyState(WXK_CONTROL) )
state += "CTRL ";
if ( wxGetKeyState(WXK_ALT) )
state += "ALT ";
if ( wxGetKeyState(WXK_SHIFT) )
state += "SHIFT ";
SetStatusText(state, 1);
}