Added a bigger wxMMedia2 demonstration: wxMultimediaBoard: it is a sort
of light clone of the Windows Media Player. Early development, but it plays WAV/AIFF files and should work on Windows as soon as I build the makefiles. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@6011 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Guilhem Lavaux
468
utils/wxMMedia2/board/mmboard.cpp
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468
utils/wxMMedia2/board/mmboard.cpp
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/////////////////////////////////////////////////////////////////////////////
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// Name: mmboard.cpp
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// Purpose: Multimedia Library sample
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// Author: Guilhem Lavaux (created from minimal by J. Smart)
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// Modified by:
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// Created: 13/02/2000
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// RCS-ID: $Id$
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// Copyright: (c) Guilhem Lavaux
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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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#ifdef __GNUG__
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#pragma implementation "mmboard.cpp"
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#endif
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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 (this file is usually all you
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// need because it includes almost all "standard" wxWindows headers
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#ifndef WX_PRECOMP
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#include "wx/wx.h"
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#endif
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// ----------------------------------------------------------------------------
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// ressources
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// ----------------------------------------------------------------------------
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// the application icon
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#if defined(__WXGTK__) || defined(__WXMOTIF__)
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#include "mondrian.xpm"
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#endif
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// include multimedia classes
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#include "sndbase.h"
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#ifdef __WIN32__
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#include "sndwin.h"
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#endif
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#ifdef __UNIX__
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#include "sndoss.h"
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#include "sndesd.h"
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#endif
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#include "wx/statline.h"
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#include "wx/stattext.h"
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// include personnal classes
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#include "mmboard.h"
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#include "mmbman.h"
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#include "play.xpm"
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#include "stop.xpm"
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#include "eject.xpm"
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#include "pause.xpm"
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// ----------------------------------------------------------------------------
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// private classes
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// ----------------------------------------------------------------------------
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// Main Multimedia Board frame
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class MMBoardFrame : public wxFrame
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{
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public:
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// ctor(s)
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MMBoardFrame(const wxString& title, const wxPoint& pos, const wxSize& size);
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// dtor
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~MMBoardFrame();
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// event handlers
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void OnQuit(wxCommandEvent& event);
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void OnAbout(wxCommandEvent& event);
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void OnOpen(wxCommandEvent& event);
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void OnPlay(wxCommandEvent& event);
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void OnStop(wxCommandEvent& event);
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void OnPause(wxCommandEvent& event);
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void OnRefreshInfo(wxEvent& event);
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private:
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// any class wishing to process wxWindows events must use this macro
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DECLARE_EVENT_TABLE()
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private:
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void UpdateMMedInfo();
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void UpdateInfoText();
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MMBoardFile *m_opened_file;
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wxSlider *m_positionSlider;
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wxBitmapButton *m_playButton, *m_pauseButton, *m_stopButton, *m_ejectButton;
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wxStaticText *m_fileType, *m_infoText;
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wxTimer *m_refreshTimer;
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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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MMBoard_Quit = 1,
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MMBoard_Open,
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MMBoard_About,
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MMBoard_PositionSlider,
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MMBoard_PlayButton,
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MMBoard_PauseButton,
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MMBoard_ResumeButton,
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MMBoard_StopButton,
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MMBoard_EjectButton,
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MMBoard_RefreshInfo
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};
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// ----------------------------------------------------------------------------
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// event tables and other macros for wxWindows
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// ----------------------------------------------------------------------------
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BEGIN_EVENT_TABLE(MMBoardFrame, wxFrame)
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EVT_MENU(MMBoard_Quit, MMBoardFrame::OnQuit)
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EVT_MENU(MMBoard_About, MMBoardFrame::OnAbout)
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EVT_MENU(MMBoard_Open, MMBoardFrame::OnOpen)
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EVT_BUTTON(MMBoard_PlayButton, MMBoardFrame::OnPlay)
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EVT_BUTTON(MMBoard_StopButton, MMBoardFrame::OnStop)
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EVT_BUTTON(MMBoard_PauseButton, MMBoardFrame::OnPause)
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EVT_CUSTOM(wxEVT_TIMER, MMBoard_RefreshInfo, MMBoardFrame::OnRefreshInfo)
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END_EVENT_TABLE()
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// ---------------------------------------------------------------------------
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// Main board application launcher
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// ---------------------------------------------------------------------------
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IMPLEMENT_APP(MMBoardApp)
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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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bool MMBoardApp::OnInit()
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{
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// create the main application window
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MMBoardFrame *frame = new MMBoardFrame("Multimedia Board",
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wxPoint(50, 50), wxSize(450, 340));
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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(TRUE);
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m_caps = TestMultimediaCaps();
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if (!m_caps) {
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wxMessageBox("Your system has no multimedia capabilities. We are exiting now.", "Major error !", wxOK | wxICON_ERROR, NULL);
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return FALSE;
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}
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wxString msg;
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msg.Printf("Detected : %s%s%s", (m_caps & MM_SOUND_OSS) ? "OSS " : "",
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(m_caps & MM_SOUND_ESD) ? "ESD " : "",
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(m_caps & MM_SOUND_WIN) ? "WIN" : "");
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wxMessageBox(msg, "Good !", wxOK | wxICON_INFORMATION, NULL);
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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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wxUint8 MMBoardApp::TestMultimediaCaps()
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{
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wxSoundStream *dev;
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wxUint8 caps;
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caps = 0;
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#ifdef __UNIX__
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// We test the OSS (Open Sound System) support.
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dev = new wxSoundStreamOSS();
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if (dev->GetError() == wxSOUND_NOERR)
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caps |= MM_SOUND_OSS;
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delete dev;
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// We now test the ESD support
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dev = new wxSoundStreamESD();
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if (dev->GetError() == wxSOUND_NOERR)
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caps |= MM_SOUND_ESD;
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delete dev;
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#endif
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#ifdef __WIN32__
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// We test the Windows sound support.
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dev = new wxSoundStreamWin();
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if (dev->GetError() == wxSOUND_NOERR)
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caps |= MM_SOUND_WIN;
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delete dev;
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#endif
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return caps;
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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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MMBoardFrame::MMBoardFrame(const wxString& title, const wxPoint& pos, const wxSize& size)
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: wxFrame((wxFrame *)NULL, -1, title, pos, size)
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{
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#ifdef __WXMAC__
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// we need this in order to allow the about menu relocation, since ABOUT is
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// not the default id of the about menu
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wxApp::s_macAboutMenuItemId = MMBoard_About;
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#endif
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// set the frame icon
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SetIcon(wxICON(mondrian));
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// create a menu bar
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wxMenu *menuFile = new wxMenu(_T(""), wxMENU_TEAROFF);
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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(MMBoard_About, _T("&About...\tCtrl-A"), _T("Show about dialog"));
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menuFile->Append(MMBoard_Open, _T("&Open\tAlt-O"), _T("Open file"));
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menuFile->AppendSeparator();
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menuFile->Append(MMBoard_Quit, _T("E&xit\tAlt-X"), _T("Quit this program"));
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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, _T("&File"));
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menuBar->Append(helpMenu, _T("&Help"));
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// ... and attach this menu bar to the frame
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SetMenuBar(menuBar);
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#if wxUSE_STATUSBAR
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// create a status bar just for fun (by default with 1 pane only)
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CreateStatusBar(3);
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SetStatusText(_T("Welcome to wxWindows!"));
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#endif // wxUSE_STATUSBAR
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// Misc variables
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m_opened_file = NULL;
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wxPanel *panel = new wxPanel(this, -1);
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// Initialize main slider
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m_positionSlider = new wxSlider( panel, MMBoard_PositionSlider, 0, 0, 60,
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wxDefaultPosition, wxSize(300, -1),
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wxSL_HORIZONTAL | wxSL_AUTOTICKS);
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m_positionSlider->SetPageSize(60); // 60 secs
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// Initialize info panel
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wxPanel *infoPanel = new wxPanel( panel, -1);
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infoPanel->SetBackgroundColour(*wxBLACK);
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infoPanel->SetForegroundColour(*wxWHITE);
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wxBoxSizer *infoSizer = new wxBoxSizer(wxVERTICAL);
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m_fileType = new wxStaticText(infoPanel, -1, _T(""));
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wxStaticLine *line = new wxStaticLine(infoPanel, -1);
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m_infoText = new wxStaticText(infoPanel, -1, "");
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UpdateInfoText();
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infoSizer->Add(m_fileType, 0, wxGROW | wxALL, 1);
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infoSizer->Add(line, 0, wxGROW | wxCENTRE, 20);
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infoSizer->Add(m_infoText, 0, wxGROW | wxALL, 1);
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infoPanel->SetSizer(infoSizer);
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infoPanel->SetAutoLayout(TRUE);
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// Bitmap button panel
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wxBoxSizer *buttonSizer = new wxBoxSizer(wxHORIZONTAL);
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wxBitmap *play_bmp = new wxBitmap(play_back_xpm);
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wxBitmap *stop_bmp = new wxBitmap(stop_back_xpm);
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wxBitmap *eject_bmp = new wxBitmap(eject_xpm);
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wxBitmap *pause_bmp = new wxBitmap(pause_xpm);
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m_playButton = new wxBitmapButton(panel, MMBoard_PlayButton, *play_bmp);
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m_playButton->Enable(FALSE);
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m_pauseButton = new wxBitmapButton(panel, MMBoard_PauseButton, *pause_bmp);
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m_pauseButton->Enable(FALSE);
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m_stopButton = new wxBitmapButton(panel, MMBoard_StopButton, *stop_bmp);
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m_stopButton->Enable(FALSE);
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m_ejectButton = new wxBitmapButton(panel, MMBoard_EjectButton, *eject_bmp);
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m_ejectButton->Enable(FALSE);
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buttonSizer->Add(m_playButton, 0, wxALL, 2);
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buttonSizer->Add(m_pauseButton, 0, wxALL, 2);
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buttonSizer->Add(m_stopButton, 0, wxALL, 2);
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buttonSizer->Add(m_ejectButton, 0, wxALL, 2);
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// Top sizer
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wxBoxSizer *sizer = new wxBoxSizer(wxVERTICAL);
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sizer->Add(new wxStaticLine(panel, -1), 0, wxGROW | wxCENTRE, 0);
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sizer->Add(m_positionSlider, 0, wxCENTRE | wxGROW | wxALL, 2);
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sizer->Add(new wxStaticLine(panel, -1), 0, wxGROW | wxCENTRE, 0);
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sizer->Add(buttonSizer, 0, wxALL, 0);
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sizer->Add(new wxStaticLine(panel, -1), 0, wxGROW | wxCENTRE, 0);
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sizer->Add(infoPanel, 1, wxCENTRE | wxGROW, 0);
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panel->SetSizer(sizer);
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panel->SetAutoLayout(TRUE);
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sizer->Fit(this);
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sizer->SetSizeHints(this);
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// Timer
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m_refreshTimer = new wxTimer(this, MMBoard_RefreshInfo);
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}
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MMBoardFrame::~MMBoardFrame()
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{
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if (m_opened_file)
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delete m_opened_file;
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delete m_refreshTimer;
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}
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// event handlers
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void MMBoardFrame::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 MMBoardFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
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{
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wxString msg;
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msg.Printf( _T("wxWindows Multimedia board v1.0a, wxMMedia v2.0a:\n")
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_T("an example of the capabilities of the wxWindows multimedia classes.\n")
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_T("Copyright 1999, 2000, Guilhem Lavaux.\n"));
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wxMessageBox(msg, "About MMBoard", wxOK | wxICON_INFORMATION, this);
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}
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void MMBoardFrame::OnOpen(wxCommandEvent& WXUNUSED(event))
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{
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wxString selected_file;
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// select a file to be opened
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selected_file = wxLoadFileSelector("multimedia", "*", NULL, this);
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if (selected_file.IsNull())
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return;
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m_opened_file = MMBoardManager::Open(selected_file);
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// Change the range values of the slider.
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MMBoardTime length;
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length = m_opened_file->GetLength();
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m_positionSlider->SetRange(0, length.hours * 3600 + length.minutes * 60 + length.seconds);
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// Update misc info
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UpdateMMedInfo();
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SetStatusText(selected_file, 2);
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// Update info text
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UpdateInfoText();
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// Enable a few buttons
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m_playButton->Enable(TRUE);
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m_ejectButton->Enable(TRUE);
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}
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void MMBoardFrame::UpdateInfoText()
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{
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wxString infotext1, infotext2;
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if (m_opened_file) {
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infotext1 = _T("File type:\n\t");
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infotext1 += m_opened_file->GetStringType() + _T("\n");
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infotext2 = _T("File informations:\n\n");
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infotext2 += m_opened_file->GetStringInformation();
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} else {
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infotext1 = _T("File type: \n\tNo file opened");
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infotext2 = _T("File informations:\nNo information\n\n\n\n\n");
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}
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m_fileType->SetLabel(infotext1);
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m_infoText->SetLabel(infotext2);
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}
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void MMBoardFrame::UpdateMMedInfo()
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{
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wxString temp_string;
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MMBoardTime current, length;
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if (m_opened_file) {
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current = m_opened_file->GetPosition();
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length = m_opened_file->GetLength();
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}
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// We refresh the status bar
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temp_string.Printf("%02d:%02d / %02d:%02d", current.hours * 60 + current.minutes,
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current.seconds, length.hours * 60 + length.minutes, length.seconds);
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SetStatusText(temp_string, 1);
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// We set the slider position
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m_positionSlider->SetValue(current.hours * 3600 + current.minutes * 60 + current.seconds);
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}
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// ----------------------------------------------------------------------------
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// Playing management, refreshers, ...
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void MMBoardFrame::OnRefreshInfo(wxEvent& WXUNUSED(event))
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{
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UpdateMMedInfo();
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if (m_opened_file->IsStopped()) {
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m_refreshTimer->Stop();
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m_playButton->Enable(TRUE);
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m_stopButton->Enable(FALSE);
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m_pauseButton->Enable(FALSE);
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}
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}
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void MMBoardFrame::OnPlay(wxCommandEvent& WXUNUSED(event))
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{
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m_refreshTimer->Start(1000, FALSE);
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m_opened_file->Play();
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m_stopButton->Enable(TRUE);
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m_pauseButton->Enable(TRUE);
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m_playButton->Enable(FALSE);
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}
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void MMBoardFrame::OnStop(wxCommandEvent& WXUNUSED(event))
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{
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m_opened_file->Stop();
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m_refreshTimer->Stop();
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m_stopButton->Enable(FALSE);
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m_playButton->Enable(TRUE);
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UpdateMMedInfo();
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}
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void MMBoardFrame::OnPause(wxCommandEvent& WXUNUSED(event))
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{
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m_opened_file->Pause();
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m_playButton->Enable(TRUE);
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m_pauseButton->Enable(FALSE);
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}
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