/////////////////////////////////////////////////////////////////////////////
// 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
// RCS-ID: $Id: display.cpp 38147 2006-03-16 16:07:24Z VZ $
// Copyright: (c) Vadim Zeitlin <vadim@wxwidgets.org>
// 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/bookctrl.h"
#include "wx/sysopt.h"
#include "wx/display.h"
// the application icon (under Windows and OS/2 it is in resources)
#if defined(__WXGTK__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__) || defined(__WXX11__)
#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();
};
// 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
DECLARE_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.
BEGIN_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)
END_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)
IMPLEMENT_APP(MyApp)
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// the application class
// ----------------------------------------------------------------------------
// 'Main program' equivalent: the program execution "starts" here
bool MyApp::OnInit()
{
#ifdef __WXMSW__
if ( argc == 2 && !wxStricmp(argv[1], _T("/dx")) )
{
wxSystemOptions::SetOption(_T("msw.display.directdraw"), 1);
}
#endif // __WXMSW__
// 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();
menuDisplay->AppendCheckItem(Display_FullScreen, _("Full &screen\tF12"));
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"));
// ... 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
wxPanel *panel = new wxPanel(this, wxID_ANY);
m_book = new wxBookCtrl(panel, wxID_ANY);
const size_t count = wxDisplay::GetCount();
for ( size_t nDpy = 0; nDpy < count; 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, _T("Origin: ")));
sizer->Add(new wxStaticText
(
page,
wxID_ANY,
wxString::Format(_T("(%d, %d)"),
r.x, r.y)
));
sizer->Add(new wxStaticText(page, wxID_ANY, _T("Size: ")));
sizer->Add(new wxStaticText
(
page,
wxID_ANY,
wxString::Format(_T("(%d, %d)"),
r.width, r.height)
));
const wxRect rc(display.GetClientArea());
sizer->Add(new wxStaticText(page, wxID_ANY, _T("Client area: ")));
sizer->Add(new wxStaticText
(
page,
wxID_ANY,
wxString::Format(_T("(%d, %d)-(%d, %d)"),
rc.x, rc.y, rc.width, rc.height)
));
sizer->Add(new wxStaticText(page, wxID_ANY, _T("Name: ")));
sizer->Add(new wxStaticText(page, wxID_ANY, display.GetName()));
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 count = modes.GetCount();
for ( size_t nMode = 0; nMode < count; nMode++ )
{
const wxVideoMode& mode = modes[nMode];
choiceModes->Append(VideoModeToText(mode),
new MyVideoModeClientData(mode));
}
sizer->Add(new wxStaticText(page, wxID_ANY, _T("&Modes: ")));
sizer->Add(choiceModes, 0, wxEXPAND);
sizer->Add(new wxStaticText(page, wxID_ANY, _T("Current: ")));
sizer->Add(new wxStaticText(page, Display_CurrentMode,
VideoModeToText(display.GetCurrentMode())));
// add it to another sizer to have borders around it and button below
sizerTop->Add(new wxButton(page, Display_ResetMode, _T("&Reset mode")),
0, wxALL | wxCENTRE, 5);
#endif // wxUSE_DISPLAY
page->SetSizer(sizerTop);
m_book->AddPage(page,
wxString::Format(_T("Display %lu"),
(unsigned long)nDpy));
}
wxBoxSizer *sizer = new wxBoxSizer(wxHORIZONTAL);
sizer->Add(m_book, 1, wxEXPAND);
panel->SetSizer(sizer);
sizer->Fit(this);
sizer->SetSizeHints(this);
}
#if wxUSE_DISPLAY
wxString MyFrame::VideoModeToText(const wxVideoMode& mode)
{
wxString s;
s.Printf(_T("%dx%d"), mode.w, mode.h);
if ( mode.bpp )
{
s += wxString::Format(_T(", %dbpp"), mode.bpp);
}
if ( mode.refresh )
{
s += wxString::Format(_T(", %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(_T("Demo program for wxDisplay class.\n\n(c) 2003-2006 Vadim Zeitlin"),
_T("About Display Sample"),
wxOK | wxICON_INFORMATION,
this);
}
void MyFrame::OnFromPoint(wxCommandEvent& WXUNUSED(event))
{
#if wxUSE_STATUSBAR
SetStatusText(_T("Press the mouse anywhere..."));
#endif // wxUSE_STATUSBAR
CaptureMouse();
}
void MyFrame::OnFullScreen(wxCommandEvent& event)
{
ShowFullScreen(event.IsChecked());
}
#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(_T("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(_T("Mouse clicked outside of display!?"));
}
wxLogStatus(this, _T("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, _T("Display resolution was changed."));
event.Skip();
}
#endif // wxUSE_DISPLAY
