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Massive reworking of wxMediaCtrl code - backend everything, search for backends via RTTI lookup, and more

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@30527 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Ryan Norton
2004-11-14 23:26:55 +00:00
parent 6f4a67aca8
commit ff4aedc554
17 changed files with 2879 additions and 1265 deletions
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622
samples/mediaplayer/mediaplayer.cpp
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@@ -1,4 +1,4 @@
/////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
// Name: mediaplayer.cpp
// Purpose: wxMediaCtrl sample
// Author: Ryan Norton
@@ -7,14 +7,28 @@
// RCS-ID: $Id$
// Copyright: (c) Ryan Norton
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
// MediaPlayer
//
// This is a simple example of how to use all the funtionality of
// the wxMediaCtrl class in wxWidgets.
//
// To use this sample, simply select Open File from the file menu,
// select the file you want to play - and MediaPlayer will play the file,
// showing video if neccessary.
//
// You can select one of the menu options, or move the slider around
// to manipulate what is playing.
// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
// ============================================================================
// declarations
// Definitions
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// Pre-compiled header stuff
// ----------------------------------------------------------------------------
#include "wx/wxprec.h"
@@ -28,7 +42,7 @@
#endif
// ----------------------------------------------------------------------------
// resources
// Headers
// ----------------------------------------------------------------------------
#include "wx/mediactrl.h" //for wxMediaCtrl
@@ -38,13 +52,48 @@
#include "wx/timer.h" //timer for updating status bar
#include "wx/textdlg.h" //for getting user text from OpenURL
// ----------------------------------------------------------------------------
// Bail out if the user doesn't want one of the
// things we need
// ----------------------------------------------------------------------------
#if !wxUSE_MEDIACTRL
#error "wxUSE_MEDIACTRL must be enabled to use this sample!"
#if !wxUSE_GUI
#error "This is a GUI sample"
#endif
// ----------------------------------------------------------------------------
#if !wxUSE_MEDIACTRL || !wxUSE_MENUS || !wxUSE_SLIDER || !wxUSE_TIMER
#error "menus, slider, mediactrl, and timers must all enabled for this sample!"
#endif
// ============================================================================
// Declarations
// ============================================================================
// ----------------------------------------------------------------------------
// Enumurations
// ----------------------------------------------------------------------------
// IDs for the controls and the menu commands
enum
{
// menu items
wxID_LOOP = 1,
wxID_OPENFILE,
wxID_PLAY,
wxID_PAUSE,
// wxID_STOP, [built-in to wxWidgets]
// wxID_ABOUT, [built-in to wxWidgets]
// wxID_EXIT, [built-in to wxWidgets]
// id for our slider
wxID_SLIDER,
// id for our wxMediaCtrl
wxID_MEDIACTRL
};
// ----------------------------------------------------------------------------
// MyApp
// ----------------------------------------------------------------------------
class MyApp : public wxApp
@@ -53,14 +102,18 @@ public:
virtual bool OnInit();
};
// ----------------------------------------------------------------------------
// MyFrame
// ----------------------------------------------------------------------------
class MyFrame : public wxFrame
{
public:
// ctor(s)
// Ctor/Dtor
MyFrame(const wxString& title);
~MyFrame();
// event handlers (these functions should _not_ be virtual)
// Menu event handlers
void OnQuit(wxCommandEvent& event);
void OnAbout(wxCommandEvent& event);
void OnLoop(wxCommandEvent& event);
@@ -72,52 +125,60 @@ public:
void OnPause(wxCommandEvent& event);
void OnStop(wxCommandEvent& event);
// Slider event handlers
void OnSeek(wxCommandEvent& event);
void OnMediaFinished(wxMediaEvent& event);
// Media event handlers
void OnMediaStop(wxMediaEvent& event);
private:
// Rebuild base status string (see Implementation)
void ResetStatus();
wxMediaCtrl* m_mediactrl;
wxSlider* m_slider;
wxBoxSizer* m_sizer;
class MyTimer* m_timer;
wxMediaCtrl* m_mediactrl; //Our media control
wxSlider* m_slider; //The slider below our media control
class MyTimer* m_timer; //Timer to write info to status bar
wxString m_basestatus; //Base status string (see ResetStatus())
int m_nLoops; //Counter, incremented each time media loops
// So that mytimer can access MyFrame's members
friend class MyTimer;
wxString m_basestatus;
bool m_bLoop;
// any class wishing to process wxWidgets events must use this macro
DECLARE_EVENT_TABLE()
};
//
//ResetStatus
//-----------
//Here we just make a simple status string
//with some useful info about the media
//We display info here in seconds (wxMediaCtrl
//uses milliseconds - that's why we divide by 1000)
//
void MyFrame::ResetStatus()
// ----------------------------------------------------------------------------
// MyTimer
// ----------------------------------------------------------------------------
class MyTimer : public wxTimer
{
m_basestatus = wxString::Format(_T("Size(x,y):%i,%i Length(Seconds):%u Speed:%1.1fx"),
m_mediactrl->GetBestSize().x,
m_mediactrl->GetBestSize().y,
(unsigned)(m_mediactrl->GetDuration() / 1000),
m_mediactrl->GetPlaybackRate()
);
public:
//Ctor
MyTimer(MyFrame* frame) {m_frame = frame;}
m_slider->SetRange(0, m_mediactrl->GetDuration() / 1000);
}
//Called each time the timer's timeout expires
void Notify();
MyFrame* m_frame; //The MyFrame
};
// ============================================================================
//
//wxGetMediaStateText
//-------------------
//Converts a wxMediaCtrl state into something
//useful that we can display
// Implementation
//
// ============================================================================
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//
// [Functions]
//
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// ----------------------------------------------------------------------------
// wxGetMediaStateText
//
// Converts a wxMediaCtrl state into something useful that we can display
// to the user
// ----------------------------------------------------------------------------
const wxChar* wxGetMediaStateText(int nState)
{
switch(nState)
@@ -132,161 +193,112 @@ const wxChar* wxGetMediaStateText(int nState)
}
}
class MyTimer : public wxTimer
{
public:
MyTimer(MyFrame* frame) {m_frame = frame;}
//
//Notify
//-----------
//Updates the main frame's status bar with the current
//position within the media and state the media is in
//
void Notify()
{
long lPosition = m_frame->m_mediactrl->GetPosition() / 1000;
m_frame->m_slider->SetValue(lPosition);
m_frame->SetStatusText(wxString::Format(_T("%s Pos:%u State:%s"),
m_frame->m_basestatus.c_str(),
(unsigned int)lPosition,
wxGetMediaStateText(m_frame->m_mediactrl->GetState())
)
);
}
MyFrame* m_frame;
};
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//
// MyApp
//
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// ----------------------------------------------------------------------------
// constants
// This sets up this wxApp as the global wxApp that gui calls in wxWidgets
// use. For example, if you were to be in windows and use a file dialog,
// wxWidgets would use wxTheApp->GetHInstance() which would get the instance
// handle of the application. These routines in wx _DO NOT_ check to see if
// the wxApp exists, and thus will crash the application if you try it.
//
// IMPLEMENT_APP does this, and also implements the platform-specific entry
// routine, such as main or WinMain(). Use IMPLEMENT_APP_NO_MAIN if you do
// not desire this behavior.
// ----------------------------------------------------------------------------
// IDs for the controls and the menu commands
enum
{
// menu items
Minimal_Quit = wxID_EXIT,
Minimal_Loop,
Minimal_OpenFile,
Minimal_Play,
Minimal_Pause,
Minimal_Stop,
Minimal_About = wxID_ABOUT,
// id for our slider
Minimal_Slider = 1,
// id for our wxMediaCtrl
Minimal_Media
};
// ----------------------------------------------------------------------------
// event tables and other macros for wxWidgets
// ----------------------------------------------------------------------------
BEGIN_EVENT_TABLE(MyFrame, wxFrame)
//Menu events
EVT_MENU(Minimal_Quit, MyFrame::OnQuit)
EVT_MENU(Minimal_About, MyFrame::OnAbout)
EVT_MENU(Minimal_Loop, MyFrame::OnLoop)
EVT_MENU(Minimal_OpenFile, MyFrame::OnOpenFile)
EVT_MENU(Minimal_Play, MyFrame::OnPlay)
EVT_MENU(Minimal_Pause, MyFrame::OnPause)
EVT_MENU(Minimal_Stop, MyFrame::OnStop)
//Slider events
EVT_SLIDER(Minimal_Slider, MyFrame::OnSeek)
//wxMediaCtrl events
EVT_MEDIA_FINISHED(Minimal_Media, MyFrame::OnMediaFinished)
END_EVENT_TABLE()
//main/WinMain()
IMPLEMENT_APP(MyApp)
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// MyApp
// MyApp::OnInit
//
// Where execution starts - akin to a main or WinMain.
// 1) Create the frame and show it to the user
// 2) return true specifying that we want execution to continue past OnInit
// ----------------------------------------------------------------------------
// 'Main program' equivalent: the program execution "starts" here
bool MyApp::OnInit()
{
MyFrame *frame = new MyFrame(_T("Minimal wxWidgets App"));
MyFrame *frame = new MyFrame(_T("MediaPlayer wxWidgets Sample"));
frame->Show(true);
return true;
}
// ----------------------------------------------------------------------------
// main frame
// ----------------------------------------------------------------------------
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//
//MyFrame
//-------
//Creates our menus and controls
// MyFrame
//
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// ----------------------------------------------------------------------------
// MyFrame Constructor
//
// 1) Create our menus
// 2) Create our controls and add them to some sizers
// 3) Create our status bar
// 4) Connect our events
// 5) Start our timer
// ----------------------------------------------------------------------------
MyFrame::MyFrame(const wxString& title)
: wxFrame(NULL, wxID_ANY, title), m_timer(NULL)
: wxFrame(NULL, wxID_ANY, title)
{
//
// Create Menus
//
#if wxUSE_MENUS
wxMenu *menuFile = new wxMenu;
wxMenu *helpMenu = new wxMenu;
helpMenu->Append(Minimal_About, _T("&About...\tF1"), _T("Show about dialog"));
helpMenu->Append(wxID_ABOUT,
_T("&About...\tF1"),
_T("Show about dialog"));
menuFile->Append(Minimal_OpenFile, _T("&Open File"), _T("Open a File"));
menuFile->Append(wxID_OPENFILE, _T("&Open File"), _T("Open a File"));
menuFile->AppendSeparator();
menuFile->Append(Minimal_Play, _T("&Play"), _T("Resume playback"));
menuFile->Append(Minimal_Pause, _T("P&ause"), _T("Pause playback"));
menuFile->Append(Minimal_Stop, _T("&Stop"), _T("Stop playback"));
menuFile->Append(wxID_PLAY, _T("&Play"), _T("Resume playback"));
menuFile->Append(wxID_PAUSE, _T("P&ause"), _T("Pause playback"));
menuFile->Append(wxID_STOP, _T("&Stop"), _T("Stop playback"));
menuFile->AppendSeparator();
menuFile->AppendCheckItem(Minimal_Loop, _T("&Loop"), _T("Loop Selected Media"));
menuFile->AppendCheckItem(wxID_LOOP,
_T("&Loop"),
_T("Loop Selected Media"));
menuFile->AppendSeparator();
menuFile->Append(Minimal_Quit, _T("E&xit\tAlt-X"), _T("Quit this program"));
menuFile->Append(wxID_EXIT,
_T("E&xit\tAlt-X"),
_T("Quit this program"));
wxMenuBar *menuBar = new wxMenuBar();
menuBar->Append(menuFile, _T("&File"));
menuBar->Append(helpMenu, _T("&Help"));
SetMenuBar(menuBar);
#endif // wxUSE_MENUS
//
// Create and attach the first/main sizer
//
m_sizer = new wxBoxSizer(wxVERTICAL);
this->SetSizer(m_sizer);
wxBoxSizer* vertsizer = new wxBoxSizer(wxVERTICAL);
this->SetSizer(vertsizer);
this->SetAutoLayout(true);
//
// Create our media control
//
m_mediactrl = new wxMediaCtrl(this, Minimal_Media, wxT(""));
m_sizer->Add(m_mediactrl, 0, wxALIGN_CENTER_HORIZONTAL|wxALL, 5);
m_mediactrl = new wxMediaCtrl(this, wxID_MEDIACTRL);
vertsizer->Add(m_mediactrl, 0, wxALIGN_CENTER_HORIZONTAL|wxALL, 5);
//
// Create our slider
//
m_slider = new wxSlider(this, Minimal_Slider, 0, //init
m_slider = new wxSlider(this, wxID_SLIDER, 0, //init
0, //start
0, //end
wxDefaultPosition, wxDefaultSize,
wxSL_HORIZONTAL );
m_sizer->Add(m_slider, 0, wxALIGN_CENTER_HORIZONTAL|wxALL|wxEXPAND , 5);
vertsizer->Add(m_slider, 0, wxALIGN_CENTER_HORIZONTAL|wxALL|wxEXPAND , 5);
//
@@ -298,15 +310,8 @@ MyFrame::MyFrame(const wxString& title)
//
// [m_slider]
//
wxBoxSizer* horzsizer = new wxBoxSizer(wxHORIZONTAL);
m_sizer->Add(horzsizer, 0, wxALIGN_CENTER_HORIZONTAL|wxALL, 5);
//
// We arn't looping initially
//
m_bLoop = false;
vertsizer->Add(horzsizer, 0, wxALIGN_CENTER_HORIZONTAL|wxALL, 5);
//
// Create our status bar
@@ -317,43 +322,193 @@ MyFrame::MyFrame(const wxString& title)
ResetStatus();
SetStatusText(m_basestatus);
#endif // wxUSE_STATUSBAR
//
// Connect events.
//
// There are two ways in wxWidgets to use events -
// Message Maps and Connections.
//
// Message Maps are implemented by putting
// DECLARE_MESSAGE_MAP in your wxEvtHandler-derived
// class you want to use for events, such as MyFrame.
//
// Then after your class declaration you put
// BEGIN_EVENT_TABLE(MyFrame, wxFrame)
// EVT_XXX(XXX)...
// END_EVENT_TABLE()
//
// Where MyFrame is the class with the DECLARE_MESSAGE_MAP
// in it. EVT_XXX(XXX) are each of your handlers, such
// as EVT_MENU for menu events and the XXX inside
// is the parameters to the event macro - in the case
// of EVT_MENU the menu id and then the function to call.
//
// However, with wxEvtHandler::Connect you can avoid a
// global message map for your class and those annoying
// macros. You can also change the context in which
// the call the handler (more later).
//
// The downside is that due to the limitation that
// wxWidgets doesn't use templates in certain areas,
// You have to triple-cast the event function.
//
// There are five parameters to wxEvtHandler::Connect -
//
// The first is the id of the instance whose events
// you want to handle - i.e. a menu id for menus,
// a control id for controls (wxControl::GetId())
// and so on.
//
// The second is the event id. This is the same
// as the message maps (EVT_MENU) except prefixed
// with "wx" (wxEVT_MENU).
//
// The third is the function handler for the event -
// You need to cast it to the specific event handler
// type, then to a wxEventFunction, then to a
// wxObjectEventFunction - I.E.
// (wxObjectEventFunction)(wxEventFunction)
// (wxCommandEventFunction) &MyFrame::MyHandler
//
// The fourth is an optional userdata param -
// this is of historical relevance only and is
// there only for backwards compatability.
//
// The fifth is the context in which to call the
// handler - by default (this param is optional)
// this. For example in your event handler
// if you were to call "this->MyFunc()"
// it would literally do this->MyFunc. However,
// if you were to pass myHandler as the fifth
// parameter, for instance, you would _really_
// be calling myHandler->MyFunc, even though
// the compiler doesn't really know it.
//
//
// Menu events
//
this->Connect(wxID_EXIT, wxEVT_COMMAND_MENU_SELECTED,
(wxObjectEventFunction) (wxEventFunction)
(wxCommandEventFunction) &MyFrame::OnQuit);
this->Connect(wxID_ABOUT, wxEVT_COMMAND_MENU_SELECTED,
(wxObjectEventFunction) (wxEventFunction)
(wxCommandEventFunction) &MyFrame::OnAbout);
this->Connect(wxID_LOOP, wxEVT_COMMAND_MENU_SELECTED,
(wxObjectEventFunction) (wxEventFunction)
(wxCommandEventFunction) &MyFrame::OnLoop);
this->Connect(wxID_OPENFILE, wxEVT_COMMAND_MENU_SELECTED,
(wxObjectEventFunction) (wxEventFunction)
(wxCommandEventFunction) &MyFrame::OnOpenFile);
this->Connect(wxID_PLAY, wxEVT_COMMAND_MENU_SELECTED,
(wxObjectEventFunction) (wxEventFunction)
(wxCommandEventFunction) &MyFrame::OnPlay);
this->Connect(wxID_PAUSE, wxEVT_COMMAND_MENU_SELECTED,
(wxObjectEventFunction) (wxEventFunction)
(wxCommandEventFunction) &MyFrame::OnPause);
this->Connect(wxID_STOP, wxEVT_COMMAND_MENU_SELECTED,
(wxObjectEventFunction) (wxEventFunction)
(wxCommandEventFunction) &MyFrame::OnStop);
//
// Slider events
//
this->Connect(wxID_SLIDER, wxEVT_COMMAND_SLIDER_UPDATED,
(wxObjectEventFunction) (wxEventFunction)
(wxCommandEventFunction) &MyFrame::OnSeek);
//
// Media Control events
//
this->Connect(wxID_MEDIACTRL, wxEVT_MEDIA_STOP,
(wxObjectEventFunction) (wxEventFunction)
(wxCommandEventFunction) &MyFrame::OnMediaStop);
//
// End of Events
//
//
// Set our loop counter to 0
//
m_nLoops = 0;
//
// Create a timer to update our status bar
//
m_timer = new MyTimer(this);
m_timer->Start(100);
}
// ----------------------------------------------------------------------------
// MyFrame Destructor
//
//~MyFrame
//--------
//Deletes child objects implicitly and our timer explicitly
//
// 1) Deletes child objects implicitly
// 2) Delete our timer explicitly
// ----------------------------------------------------------------------------
MyFrame::~MyFrame()
{
delete m_timer;
}
// ----------------------------------------------------------------------------
// MyFrame::ResetStatus
//
//OnQuit
//------
//Called from file->quit.
//Closes this application.
// Here we just make a simple status string with some useful info about
// the media that we won't change later - such as the length of the media.
//
// We then append some other info that changes in MyTimer::Notify, then
// set the status bar to this text.
//
// In real applications, you'd want to find a better way to do this,
// such as static text controls (wxStaticText).
//
// We display info here in seconds (wxMediaCtrl uses milliseconds - that's why
// we divide by 1000).
//
// We also reset our loop counter here.
// ----------------------------------------------------------------------------
void MyFrame::ResetStatus()
{
m_basestatus = wxString::Format(_T("Size(x,y):%i,%i ")
_T("Length(Seconds):%u Speed:%1.1fx"),
m_mediactrl->GetBestSize().x,
m_mediactrl->GetBestSize().y,
(unsigned)((m_mediactrl->GetDuration() / 1000).ToLong()),
m_mediactrl->GetPlaybackRate()
);
m_slider->SetRange(0, (m_mediactrl->GetDuration() / 1000).ToLong());
m_nLoops = 0;
}
// ----------------------------------------------------------------------------
// MyFrame::OnQuit
//
// Called from file->quit.
// Closes this application.
// ----------------------------------------------------------------------------
void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
// true is to force the frame to close
Close(true);
}
//
//OnAbout
//-------
//Called from help->about.
//Gets some info about this application.
//
// ----------------------------------------------------------------------------
// MyFrame::OnAbout
//
// Called from help->about.
// Gets some info about this application.
// ----------------------------------------------------------------------------
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
wxString msg;
@@ -363,23 +518,23 @@ void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
wxMessageBox(msg, _T("About wxMediaCtrl test"), wxOK | wxICON_INFORMATION, this);
}
// ----------------------------------------------------------------------------
// MyFrame::OnLoop
//
//OnLoop
//------
//Called from file->loop.
//Changes the state of whether we want to loop or not.
//
// Called from file->loop.
// Changes the state of whether we want to loop or not.
// ----------------------------------------------------------------------------
void MyFrame::OnLoop(wxCommandEvent& WXUNUSED(event))
{
m_bLoop = !m_bLoop;
m_mediactrl->Loop( !m_mediactrl->IsLooped() );
}
// ----------------------------------------------------------------------------
// MyFrame::OnOpenFile
//
//OnOpenFile
//----------
//Called from file->openfile.
//Opens and plays a media file
//
// Called from file->openfile.
// Opens and plays a media file
// ----------------------------------------------------------------------------
void MyFrame::OnOpenFile(wxCommandEvent& WXUNUSED(event))
{
wxFileDialog fd(this);
@@ -396,69 +551,100 @@ void MyFrame::OnOpenFile(wxCommandEvent& WXUNUSED(event))
}
}
//
//OnPlay
//------
//Called from file->play.
//Resumes the media if it is paused or stopped.
//
// ----------------------------------------------------------------------------
// MyFrame::OnPlay
//
// Called from file->play.
// Resumes the media if it is paused or stopped.
// ----------------------------------------------------------------------------
void MyFrame::OnPlay(wxCommandEvent& WXUNUSED(event))
{
if( !m_mediactrl->Play() )
wxMessageBox(wxT("Couldn't play movie!"));
}
//
//OnPause
//-------
//Called from file->pause.
//Pauses the media in-place.
//
// ----------------------------------------------------------------------------
// MyFrame::OnPause
//
// Called from file->pause.
// Pauses the media in-place.
// ----------------------------------------------------------------------------
void MyFrame::OnPause(wxCommandEvent& WXUNUSED(event))
{
if( !m_mediactrl->Pause() )
wxMessageBox(wxT("Couldn't pause movie!"));
}
//
//OnStop
//------
//Called from file->stop.
//Where it stops depends on whether you can seek in the
//media control or not - if you can it stops and seeks to the beginning,
//otherwise it will appear to be at the end - but it will start over again
//when play() is called
//
// ----------------------------------------------------------------------------
// MyFrame::OnStop
//
// Called from file->stop.
// Where it stops depends on whether you can seek in the
// media control or not - if you can it stops and seeks to the beginning,
// otherwise it will appear to be at the end - but it will start over again
// when Play() is called
// ----------------------------------------------------------------------------
void MyFrame::OnStop(wxCommandEvent& WXUNUSED(event))
{
if( !m_mediactrl->Stop() )
wxMessageBox(wxT("Couldn't stop movie!"));
}
//
//OnSeek
//------
//Called from file->seek.
//Called when the user moves the slider -
//seeks to a position within the media
//
// ----------------------------------------------------------------------------
// MyFrame::OnSeek
//
// Called from file->seek.
// Called when the user moves the slider -
// seeks to a position within the media
// ----------------------------------------------------------------------------
void MyFrame::OnSeek(wxCommandEvent& WXUNUSED(event))
{
if( !m_mediactrl->SetPosition( m_slider->GetValue() * 1000 ) )
wxMessageBox(wxT("Couldn't seek in movie!"));
}
//
//OnMediaFinished
//---------------
//Called when the media stops playing.
//Here we loop it if the user wants to (has been selected from file menu)
//
void MyFrame::OnMediaFinished(wxMediaEvent& WXUNUSED(event))
// ----------------------------------------------------------------------------
// MyFrame::OnMediaStop
//
// Called when the media is about to stop playing.
// Here we just increase our loop counter
// ----------------------------------------------------------------------------
void MyFrame::OnMediaStop(wxMediaEvent& WXUNUSED(event))
{
if(m_bLoop)
{
if ( !m_mediactrl->Play() )
wxMessageBox(wxT("Couldn't loop movie!"));
}
++m_nLoops;
}
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//
// MyTimer
//
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// ----------------------------------------------------------------------------
// MyTimer::Notify
//
// 1) Update our slider with the position were are in in the media
// 2) Update our status bar with the base text from MyFrame::ResetStatus,
// append some non-static (changing) info to it, then set the
// status bar text to that result
// ----------------------------------------------------------------------------
void MyTimer::Notify()
{
long lPosition = (m_frame->m_mediactrl->GetPosition() / 1000).ToLong();
m_frame->m_slider->SetValue(lPosition);
#if wxUSE_STATUSBAR
m_frame->SetStatusText(wxString::Format(
_T("%s Pos:%u State:%s Loops:%i"),
m_frame->m_basestatus.c_str(),
(unsigned int)lPosition,
wxGetMediaStateText(m_frame->m_mediactrl->GetState()),
m_frame->m_nLoops
)
);
#endif
}
//
// End of MediaPlayer sample
//