92c01615ec
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@52525 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
435 lines
13 KiB
C++
435 lines
13 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: display.cpp
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// Purpose: wxWidgets sample showing the features of wxDisplay class
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// Author: Vadim Zeitlin
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// Modified by: Ryan Norton & Brian Victor
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// Created: 23.02.03
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// RCS-ID: $Id$
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// Copyright: (c) Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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// for compilers that support precompilation, includes "wx/wx.h"
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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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// for all others, include the necessary headers explicitly
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#ifndef WX_PRECOMP
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#include "wx/wx.h"
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#endif
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#include "wx/bookctrl.h"
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#include "wx/sysopt.h"
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#include "wx/display.h"
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// the application icon (under Windows and OS/2 it is in resources)
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#if defined(__WXGTK__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__) || defined(__WXX11__)
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#include "../sample.xpm"
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#endif
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// ----------------------------------------------------------------------------
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// private classes
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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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// override base class virtuals
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// ----------------------------
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// this one is called on application startup and is a good place for the app
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// initialization (doing it here and not in the ctor allows to have an error
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// return: if OnInit() returns false, the application terminates)
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virtual bool OnInit();
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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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// ctor(s)
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MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size,
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long style = wxDEFAULT_FRAME_STYLE);
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// event handlers (these functions should _not_ be virtual)
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void OnQuit(wxCommandEvent& event);
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void OnFromPoint(wxCommandEvent& event);
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void OnFullScreen(wxCommandEvent& event);
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void OnAbout(wxCommandEvent& event);
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#if wxUSE_DISPLAY
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void OnChangeMode(wxCommandEvent& event);
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void OnResetMode(wxCommandEvent& event);
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void OnDisplayChanged(wxDisplayChangedEvent& event);
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#endif // wxUSE_DISPLAY
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void OnLeftClick(wxMouseEvent& event);
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private:
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#if wxUSE_DISPLAY
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// convert video mode to textual description
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wxString VideoModeToText(const wxVideoMode& mode);
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#endif // wxUSE_DISPLAY
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// GUI controls
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wxBookCtrl *m_book;
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// any class wishing to process wxWidgets events must use this macro
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DECLARE_EVENT_TABLE()
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};
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// Client data class for the choice control containing the video modes
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class MyVideoModeClientData : public wxClientData
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{
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public:
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MyVideoModeClientData(const wxVideoMode& m) : mode(m) { }
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const wxVideoMode mode;
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};
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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// IDs for the controls and the menu commands
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enum
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{
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// menu items
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Display_FromPoint = wxID_HIGHEST + 1,
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Display_FullScreen,
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// controls
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Display_ChangeMode,
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Display_ResetMode,
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Display_CurrentMode,
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// it is important for the id corresponding to the "About" command to have
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// this standard value as otherwise it won't be handled properly under Mac
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// (where it is special and put into the "Apple" menu)
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Display_Quit = wxID_EXIT,
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Display_About = wxID_ABOUT
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};
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// ----------------------------------------------------------------------------
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// event tables and other macros for wxWidgets
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// ----------------------------------------------------------------------------
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// the event tables connect the wxWidgets events with the functions (event
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// handlers) which process them. It can be also done at run-time, but for the
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// simple menu events like this the static method is much simpler.
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BEGIN_EVENT_TABLE(MyFrame, wxFrame)
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EVT_MENU(Display_Quit, MyFrame::OnQuit)
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EVT_MENU(Display_FromPoint, MyFrame::OnFromPoint)
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EVT_MENU(Display_FullScreen, MyFrame::OnFullScreen)
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EVT_MENU(Display_About, MyFrame::OnAbout)
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#if wxUSE_DISPLAY
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EVT_CHOICE(Display_ChangeMode, MyFrame::OnChangeMode)
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EVT_BUTTON(Display_ResetMode, MyFrame::OnResetMode)
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EVT_DISPLAY_CHANGED(MyFrame::OnDisplayChanged)
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#endif // wxUSE_DISPLAY
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EVT_LEFT_UP(MyFrame::OnLeftClick)
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END_EVENT_TABLE()
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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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// ----------------------------------------------------------------------------
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// the application class
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// ----------------------------------------------------------------------------
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// 'Main program' equivalent: the program execution "starts" here
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bool MyApp::OnInit()
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{
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if ( !wxApp::OnInit() )
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return false;
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#ifdef __WXMSW__
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if ( argc == 2 && !wxStricmp(argv[1], _T("/dx")) )
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{
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wxSystemOptions::SetOption(_T("msw.display.directdraw"), 1);
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}
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#endif // __WXMSW__
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// create the main application window
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MyFrame *frame = new MyFrame(_("Display wxWidgets Sample"),
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wxDefaultPosition, wxDefaultSize);
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// and show it (the frames, unlike simple controls, are not shown when
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// created initially)
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frame->Show();
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// success: wxApp::OnRun() will be called which will enter the main message
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// loop and the application will run. If we returned false here, the
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// application would exit immediately.
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return true;
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}
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// ----------------------------------------------------------------------------
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// main frame
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// ----------------------------------------------------------------------------
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// frame constructor
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MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size, long style)
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: wxFrame(NULL, wxID_ANY, title, pos, size, style)
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{
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// set the frame icon
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SetIcon(wxICON(sample));
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#if wxUSE_MENUS
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// create a menu bar
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wxMenu *menuDisplay = new wxMenu;
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menuDisplay->Append(Display_FromPoint, _("Find from &point..."));
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menuDisplay->AppendSeparator();
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menuDisplay->AppendCheckItem(Display_FullScreen, _("Full &screen\tF12"));
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menuDisplay->AppendSeparator();
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menuDisplay->Append(Display_Quit, _("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 *helpMenu = new wxMenu;
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helpMenu->Append(Display_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(menuDisplay, _("&Display"));
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menuBar->Append(helpMenu, _("&Help"));
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// ... and attach this menu bar to the frame
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SetMenuBar(menuBar);
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#endif // wxUSE_MENUS
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#if wxUSE_STATUSBAR
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// create status bar
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CreateStatusBar();
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#endif // wxUSE_STATUSBAR
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// create child controls
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wxPanel *panel = new wxPanel(this, wxID_ANY);
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m_book = new wxBookCtrl(panel, wxID_ANY);
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const size_t count = wxDisplay::GetCount();
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for ( size_t nDpy = 0; nDpy < count; nDpy++ )
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{
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wxDisplay display(nDpy);
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wxWindow *page = new wxPanel(m_book, wxID_ANY);
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// create 2 column flex grid sizer with growable 2nd column
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wxFlexGridSizer *sizer = new wxFlexGridSizer(2, 10, 20);
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sizer->AddGrowableCol(1);
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const wxRect r(display.GetGeometry());
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sizer->Add(new wxStaticText(page, wxID_ANY, _T("Origin: ")));
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sizer->Add(new wxStaticText
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(
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page,
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wxID_ANY,
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wxString::Format(_T("(%d, %d)"),
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r.x, r.y)
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));
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sizer->Add(new wxStaticText(page, wxID_ANY, _T("Size: ")));
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sizer->Add(new wxStaticText
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(
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page,
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wxID_ANY,
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wxString::Format(_T("(%d, %d)"),
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r.width, r.height)
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));
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const wxRect rc(display.GetClientArea());
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sizer->Add(new wxStaticText(page, wxID_ANY, _T("Client area: ")));
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sizer->Add(new wxStaticText
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(
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page,
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wxID_ANY,
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wxString::Format(_T("(%d, %d)-(%d, %d)"),
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rc.x, rc.y, rc.width, rc.height)
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));
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sizer->Add(new wxStaticText(page, wxID_ANY, _T("Name: ")));
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sizer->Add(new wxStaticText(page, wxID_ANY, display.GetName()));
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wxSizer *sizerTop = new wxBoxSizer(wxVERTICAL);
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sizerTop->Add(sizer, 1, wxALL | wxEXPAND, 10);
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#if wxUSE_DISPLAY
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wxChoice *choiceModes = new wxChoice(page, Display_ChangeMode);
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const wxArrayVideoModes modes = display.GetModes();
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const size_t count = modes.GetCount();
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for ( size_t nMode = 0; nMode < count; nMode++ )
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{
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const wxVideoMode& mode = modes[nMode];
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choiceModes->Append(VideoModeToText(mode),
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new MyVideoModeClientData(mode));
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}
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sizer->Add(new wxStaticText(page, wxID_ANY, _T("&Modes: ")));
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sizer->Add(choiceModes, 0, wxEXPAND);
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sizer->Add(new wxStaticText(page, wxID_ANY, _T("Current: ")));
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sizer->Add(new wxStaticText(page, Display_CurrentMode,
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VideoModeToText(display.GetCurrentMode())));
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// add it to another sizer to have borders around it and button below
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sizerTop->Add(new wxButton(page, Display_ResetMode, _T("&Reset mode")),
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0, wxALL | wxCENTRE, 5);
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#endif // wxUSE_DISPLAY
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page->SetSizer(sizerTop);
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m_book->AddPage(page,
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wxString::Format(_T("Display %lu"),
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(unsigned long)nDpy));
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}
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wxBoxSizer *sizer = new wxBoxSizer(wxHORIZONTAL);
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sizer->Add(m_book, 1, wxEXPAND);
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panel->SetSizer(sizer);
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sizer->SetSizeHints(this);
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}
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#if wxUSE_DISPLAY
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wxString MyFrame::VideoModeToText(const wxVideoMode& mode)
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{
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wxString s;
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s.Printf(_T("%dx%d"), mode.w, mode.h);
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if ( mode.bpp )
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{
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s += wxString::Format(_T(", %dbpp"), mode.bpp);
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}
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if ( mode.refresh )
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{
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s += wxString::Format(_T(", %dHz"), mode.refresh);
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}
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return s;
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}
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#endif // wxUSE_DISPLAY
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// event handlers
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void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
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{
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// true is to force the frame to close
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Close(true);
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}
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void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
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{
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wxMessageBox(_T("Demo program for wxDisplay class.\n\n(c) 2003-2006 Vadim Zeitlin"),
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_T("About Display Sample"),
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wxOK | wxICON_INFORMATION,
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this);
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}
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void MyFrame::OnFromPoint(wxCommandEvent& WXUNUSED(event))
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{
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#if wxUSE_STATUSBAR
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SetStatusText(_T("Press the mouse anywhere..."));
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#endif // wxUSE_STATUSBAR
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CaptureMouse();
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}
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void MyFrame::OnFullScreen(wxCommandEvent& event)
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{
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ShowFullScreen(event.IsChecked());
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}
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#if wxUSE_DISPLAY
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void MyFrame::OnChangeMode(wxCommandEvent& event)
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{
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wxDisplay dpy(m_book->GetSelection());
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// you wouldn't write this in real code, would you?
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if ( !dpy.ChangeMode(((MyVideoModeClientData *)
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wxDynamicCast(event.GetEventObject(), wxChoice)->
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GetClientObject(event.GetInt()))->mode) )
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{
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wxLogError(_T("Changing video mode failed!"));
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}
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}
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void MyFrame::OnResetMode(wxCommandEvent& WXUNUSED(event))
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{
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wxDisplay dpy(m_book->GetSelection());
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dpy.ResetMode();
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}
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#endif // wxUSE_DISPLAY
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void MyFrame::OnLeftClick(wxMouseEvent& event)
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{
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if ( HasCapture() )
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{
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// mouse events are in client coords, wxDisplay works in screen ones
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const wxPoint ptScreen = ClientToScreen(event.GetPosition());
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int dpy = wxDisplay::GetFromPoint(ptScreen);
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if ( dpy == wxNOT_FOUND )
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{
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wxLogError(_T("Mouse clicked outside of display!?"));
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}
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wxLogStatus(this, _T("Mouse clicked in display %d (at (%d, %d))"),
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dpy, ptScreen.x, ptScreen.y);
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ReleaseMouse();
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}
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}
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#if wxUSE_DISPLAY
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void MyFrame::OnDisplayChanged(wxDisplayChangedEvent& event)
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{
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// update the current mode text
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for ( size_t n = 0; n < m_book->GetPageCount(); n++ )
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{
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wxStaticText *label = wxDynamicCast(m_book->GetPage(n)->
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FindWindow(Display_CurrentMode),
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wxStaticText);
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if ( label )
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label->SetLabel(VideoModeToText(wxDisplay(n).GetCurrentMode()));
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}
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wxLogStatus(this, _T("Display resolution was changed."));
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event.Skip();
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}
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#endif // wxUSE_DISPLAY
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