///////////////////////////////////////////////////////////////////////////// // Name: display.cpp // Purpose: wxWidgets sample showing the features of wxDisplay class // Author: Vadim Zeitlin // Modified by: Ryan Norton & Brian Victor // Created: 23.02.03 // Copyright: (c) Vadim Zeitlin // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// // ============================================================================ // declarations // ============================================================================ // ---------------------------------------------------------------------------- // headers // ---------------------------------------------------------------------------- // for compilers that support precompilation, includes "wx/wx.h" #include "wx/wxprec.h" #ifdef __BORLANDC__ #pragma hdrstop #endif // for all others, include the necessary headers explicitly #ifndef WX_PRECOMP #include "wx/wx.h" #endif #include "wx/artprov.h" #include "wx/bookctrl.h" #include "wx/sysopt.h" #include "wx/display.h" // the application icon (under Windows it is in resources) #ifndef wxHAS_IMAGES_IN_RESOURCES #include "../sample.xpm" #endif // ---------------------------------------------------------------------------- // private classes // ---------------------------------------------------------------------------- // Define a new application type, each program should derive a class from wxApp class MyApp : public wxApp { public: // override base class virtuals // ---------------------------- // this one is called on application startup and is a good place for the app // initialization (doing it here and not in the ctor allows to have an error // return: if OnInit() returns false, the application terminates) virtual bool OnInit() wxOVERRIDE; }; // Define a new frame type: this is going to be our main frame class MyFrame : public wxFrame { public: // ctor(s) MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size, long style = wxDEFAULT_FRAME_STYLE); // event handlers (these functions should _not_ be virtual) void OnQuit(wxCommandEvent& event); void OnFromPoint(wxCommandEvent& event); void OnFullScreen(wxCommandEvent& event); void OnAbout(wxCommandEvent& event); #if wxUSE_DISPLAY void OnChangeMode(wxCommandEvent& event); void OnResetMode(wxCommandEvent& event); void OnDisplayChanged(wxDisplayChangedEvent& event); #endif // wxUSE_DISPLAY void OnLeftClick(wxMouseEvent& event); private: #if wxUSE_DISPLAY // convert video mode to textual description wxString VideoModeToText(const wxVideoMode& mode); #endif // wxUSE_DISPLAY // GUI controls wxBookCtrl *m_book; // any class wishing to process wxWidgets events must use this macro wxDECLARE_EVENT_TABLE(); }; // Client data class for the choice control containing the video modes class MyVideoModeClientData : public wxClientData { public: MyVideoModeClientData(const wxVideoMode& m) : mode(m) { } const wxVideoMode mode; }; // ---------------------------------------------------------------------------- // constants // ---------------------------------------------------------------------------- // IDs for the controls and the menu commands enum { // menu items Display_FromPoint = wxID_HIGHEST + 1, Display_FullScreen, // controls Display_ChangeMode, Display_ResetMode, Display_CurrentMode, // it is important for the id corresponding to the "About" command to have // this standard value as otherwise it won't be handled properly under Mac // (where it is special and put into the "Apple" menu) Display_Quit = wxID_EXIT, Display_About = wxID_ABOUT }; // ---------------------------------------------------------------------------- // event tables and other macros for wxWidgets // ---------------------------------------------------------------------------- // 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. wxBEGIN_EVENT_TABLE(MyFrame, wxFrame) EVT_MENU(Display_Quit, MyFrame::OnQuit) EVT_MENU(Display_FromPoint, MyFrame::OnFromPoint) EVT_MENU(Display_FullScreen, MyFrame::OnFullScreen) EVT_MENU(Display_About, MyFrame::OnAbout) #if wxUSE_DISPLAY EVT_CHOICE(Display_ChangeMode, MyFrame::OnChangeMode) EVT_BUTTON(Display_ResetMode, MyFrame::OnResetMode) EVT_DISPLAY_CHANGED(MyFrame::OnDisplayChanged) #endif // wxUSE_DISPLAY EVT_LEFT_UP(MyFrame::OnLeftClick) wxEND_EVENT_TABLE() // 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 // ============================================================================ // ---------------------------------------------------------------------------- // the application class // ---------------------------------------------------------------------------- // 'Main program' equivalent: the program execution "starts" here bool MyApp::OnInit() { if ( !wxApp::OnInit() ) return false; // create the main application window MyFrame *frame = new MyFrame(_("Display wxWidgets Sample"), wxDefaultPosition, wxDefaultSize); // and show it (the frames, unlike simple controls, are not shown when // created initially) frame->Show(); // success: wxApp::OnRun() will be called which will enter the main message // loop and the application will run. If we returned false here, the // application would exit immediately. return true; } // ---------------------------------------------------------------------------- // main frame // ---------------------------------------------------------------------------- // frame constructor MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size, long style) : wxFrame(NULL, wxID_ANY, title, pos, size, style) { // set the frame icon SetIcon(wxICON(sample)); #if wxUSE_MENUS // create a menu bar wxMenu *menuDisplay = new wxMenu; menuDisplay->Append(Display_FromPoint, _("Find from &point...")); menuDisplay->AppendSeparator(); wxMenuItem* const itemFullScreen = new wxMenuItem(menuDisplay, Display_FullScreen, _("Full &screen\tF12")); itemFullScreen->SetBitmap( wxArtProvider::GetBitmap(wxART_FULL_SCREEN, wxART_MENU) ); menuDisplay->Append(itemFullScreen); menuDisplay->AppendSeparator(); menuDisplay->Append(Display_Quit, _("E&xit\tAlt-X"), _("Quit this program")); // the "About" item should be in the help menu wxMenu *helpMenu = new wxMenu; helpMenu->Append(Display_About, _("&About\tF1"), _("Show about dialog")); // now append the freshly created menu to the menu bar... wxMenuBar *menuBar = new wxMenuBar(); menuBar->Append(menuDisplay, _("&Display")); menuBar->Append(helpMenu, _("&Help")); EnableFullScreenView(); // ... and attach this menu bar to the frame SetMenuBar(menuBar); #endif // wxUSE_MENUS #if wxUSE_STATUSBAR // create status bar CreateStatusBar(); #endif // wxUSE_STATUSBAR // create child controls m_book = new wxBookCtrl(this, wxID_ANY); const size_t countDpy = wxDisplay::GetCount(); for ( size_t nDpy = 0; nDpy < countDpy; nDpy++ ) { wxDisplay display(nDpy); wxWindow *page = new wxPanel(m_book, wxID_ANY); // create 2 column flex grid sizer with growable 2nd column wxFlexGridSizer *sizer = new wxFlexGridSizer(2, 10, 20); sizer->AddGrowableCol(1); const wxRect r(display.GetGeometry()); sizer->Add(new wxStaticText(page, wxID_ANY, "Origin: ")); sizer->Add(new wxStaticText ( page, wxID_ANY, wxString::Format("(%d, %d)", r.x, r.y) )); sizer->Add(new wxStaticText(page, wxID_ANY, "Size: ")); sizer->Add(new wxStaticText ( page, wxID_ANY, wxString::Format("(%d, %d)", r.width, r.height) )); const wxRect rc(display.GetClientArea()); sizer->Add(new wxStaticText(page, wxID_ANY, "Client area: ")); sizer->Add(new wxStaticText ( page, wxID_ANY, wxString::Format("(%d, %d)-(%d, %d)", rc.x, rc.y, rc.width, rc.height) )); sizer->Add(new wxStaticText(page, wxID_ANY, "Resolution: ")); const wxSize ppi = display.GetPPI(); sizer->Add(new wxStaticText(page, wxID_ANY, wxString::Format("%d*%d", ppi.x, ppi.y))); sizer->Add(new wxStaticText(page, wxID_ANY, "Depth: ")); sizer->Add(new wxStaticText(page, wxID_ANY, wxString::Format("%d", display.GetDepth()))); sizer->Add(new wxStaticText(page, wxID_ANY, "Name: ")); sizer->Add(new wxStaticText(page, wxID_ANY, display.GetName())); sizer->Add(new wxStaticText(page, wxID_ANY, "Primary: ")); sizer->Add(new wxStaticText(page, wxID_ANY, display.IsPrimary() ? "yes" : "no")); // add it to another sizer to have borders around it and button below wxSizer *sizerTop = new wxBoxSizer(wxVERTICAL); sizerTop->Add(sizer, 1, wxALL | wxEXPAND, 10); #if wxUSE_DISPLAY wxChoice *choiceModes = new wxChoice(page, Display_ChangeMode); const wxArrayVideoModes modes = display.GetModes(); const size_t countModes = modes.GetCount(); for ( size_t nMode = 0; nMode < countModes; nMode++ ) { const wxVideoMode& mode = modes[nMode]; choiceModes->Append(VideoModeToText(mode), new MyVideoModeClientData(mode)); } sizer->Add(new wxStaticText(page, wxID_ANY, "&Modes: ")); sizer->Add(choiceModes, 0, wxEXPAND); sizer->Add(new wxStaticText(page, wxID_ANY, "Current: ")); sizer->Add(new wxStaticText(page, Display_CurrentMode, VideoModeToText(display.GetCurrentMode()))); sizerTop->Add(new wxButton(page, Display_ResetMode, "&Reset mode"), 0, wxALL | wxCENTRE, 5); #endif // wxUSE_DISPLAY page->SetSizer(sizerTop); page->Layout(); m_book->AddPage(page, wxString::Format("Display %lu", (unsigned long)nDpy)); } SetClientSize(m_book->GetBestSize()); } #if wxUSE_DISPLAY wxString MyFrame::VideoModeToText(const wxVideoMode& mode) { wxString s; s.Printf("%dx%d", mode.w, mode.h); if ( mode.bpp ) { s += wxString::Format(", %dbpp", mode.bpp); } if ( mode.refresh ) { s += wxString::Format(", %dHz", mode.refresh); } return s; } #endif // wxUSE_DISPLAY // event handlers void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event)) { // true is to force the frame to close Close(true); } void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event)) { wxMessageBox("Demo program for wxDisplay class.\n\n(c) 2003-2006 Vadim Zeitlin", "About Display Sample", wxOK | wxICON_INFORMATION, this); } void MyFrame::OnFromPoint(wxCommandEvent& WXUNUSED(event)) { #if wxUSE_STATUSBAR SetStatusText("Press the mouse anywhere..."); #endif // wxUSE_STATUSBAR CaptureMouse(); } void MyFrame::OnFullScreen(wxCommandEvent& WXUNUSED(event)) { ShowFullScreen(!IsFullScreen()); } #if wxUSE_DISPLAY void MyFrame::OnChangeMode(wxCommandEvent& event) { wxDisplay dpy(m_book->GetSelection()); // you wouldn't write this in real code, would you? if ( !dpy.ChangeMode(((MyVideoModeClientData *) wxDynamicCast(event.GetEventObject(), wxChoice)-> GetClientObject(event.GetInt()))->mode) ) { wxLogError("Changing video mode failed!"); } } void MyFrame::OnResetMode(wxCommandEvent& WXUNUSED(event)) { wxDisplay dpy(m_book->GetSelection()); dpy.ResetMode(); } #endif // wxUSE_DISPLAY void MyFrame::OnLeftClick(wxMouseEvent& event) { if ( HasCapture() ) { // mouse events are in client coords, wxDisplay works in screen ones const wxPoint ptScreen = ClientToScreen(event.GetPosition()); int dpy = wxDisplay::GetFromPoint(ptScreen); if ( dpy == wxNOT_FOUND ) { wxLogError("Mouse clicked outside of display!?"); } wxLogStatus(this, "Mouse clicked in display %d (at (%d, %d))", dpy, ptScreen.x, ptScreen.y); ReleaseMouse(); } } #if wxUSE_DISPLAY void MyFrame::OnDisplayChanged(wxDisplayChangedEvent& event) { // update the current mode text for ( size_t n = 0; n < m_book->GetPageCount(); n++ ) { wxStaticText *label = wxDynamicCast(m_book->GetPage(n)-> FindWindow(Display_CurrentMode), wxStaticText); if ( label ) label->SetLabel(VideoModeToText(wxDisplay(n).GetCurrentMode())); } wxLogStatus(this, "Display resolution was changed."); event.Skip(); } #endif // wxUSE_DISPLAY