/////////////////////////////////////////////////////////////////////////////
// Name: mediactrl.h
-// Purpose: interface of wxMediaEvent
+// Purpose: interface of wxMediaEvent, wxMediaCtrl
// Author: wxWidgets team
// RCS-ID: $Id$
// Licence: wxWindows license
/**
@class wxMediaCtrl
- wxMediaCtrl is a class for displaying types of
- media, such as videos, audio files, natively through native codecs.
+ wxMediaCtrl is a class for displaying types of media, such as videos, audio
+ files, natively through native codecs.
wxMediaCtrl uses native backends to render media, for example on Windows
there is a ActiveMovie/DirectShow backend, and on Macintosh there is a
QuickTime backend.
- @library{wxmedia}
- @category{media}
- @see wxMediaEvent
-
- @section class_mediactrl_rendering_media Rendering media
+ @section mediactrl_rendering_media Rendering media
Depending upon the backend, wxMediaCtrl can render and display pretty much any
kind of media that the native system can - such as an image, mpeg video, or mp3
of the backend. For example, QuickTime cannot set the playback rate of certain
streaming media - while DirectShow is slightly more flexible in that regard.
- @section class_mediactrl_operation Operation
+ @section mediactrl_operation Operation
When wxMediaCtrl plays a file, it plays until the stop position is reached
(currently the end of the file/stream). Right before it hits the end of the stream,
}
@endcode
- When wxMediaCtrl stops, either by the @c EVT_MEDIA_STOP not being vetoed, or by manually
- calling Stop(), where it actually stops is not at the beginning, rather, but at the beginning
- of the stream. That is, when it stops and play is called, playback is gauranteed to start at
- the beginning of the media. This is because some streams are not seekable, and when stop is
- called on them they return to the beginning, thus wxMediaCtrl tries to keep consistant for all types
- of media.
-
- Note that when changing the state of the media through Play() and other methods, the media may not
- actually be in the @c wxMEDIASTATE_PLAYING, for example. If you are relying on the media being in
- certain state catch the event relevant to the state. See wxMediaEvent for the kinds of events that
- you can catch.
-
- @section class_mediactrl_video_size Video size
-
- By default, wxMediaCtrl will scale the size of the video to the requested amount passed to either
- its constructor or Create(). After calling Load or performing an equivilant operation, you can
- subsequently obtain the "real" size of the video (if there is any) by calling GetBestSize().
- Note that the actual result on the display will be slightly different when ShowPlayerControls is
- activated and the actual video size will be less then specified due to the extra controls provided
- by the native toolkit. In addition, the backend may modify GetBestSize() to include the size of
- the extra controls - so if you want the real size of the video just disable ShowPlayerControls().
-
- The idea with setting GetBestSize() to the size of the video is that GetBestSize() is a wxWindow-derived
- function that is called when sizers on a window recalculate. What this means is that if you use sizers
- by default the video will show in its original size without any extra assistance needed from the user.
-
- @section class_mediactrl_player_controls Player controls
-
- Normally, when you use wxMediaCtrl it is just a window for the video to play in. However, some toolkits
- have their own media player interface. For example, QuickTime generally has a bar below the video with
- a slider. A special feature available to wxMediaCtrl, you can use the toolkits interface instead of making
- your own by using the ShowPlayerControls() function. There are several options for the flags parameter,
- with the two general flags being @c wxMEDIACTRLPLAYERCONTROLS_NONE which turns off the native interface,
- and @c wxMEDIACTRLPLAYERCONTROLS_DEFAULT which lets wxMediaCtrl decide what native controls on the interface.
- Be sure to review the caveats outlined in Video size before doing so.
-
- @section class_mediactrl_choosing_backend Choosing a backend
-
- Generally, you should almost certainly leave this part up to wxMediaCtrl - but if you need a certain backend
- for a particular reason, such as QuickTime for playing .mov files, all you need to do to choose a specific
- backend is to pass the name of the backend class to Create().
+ When wxMediaCtrl stops, either by the @c EVT_MEDIA_STOP not being vetoed, or
+ by manually calling Stop(), where it actually stops is not at the beginning,
+ rather, but at the beginning of the stream. That is, when it stops and play
+ is called, playback is gauranteed to start at the beginning of the media.
+ This is because some streams are not seekable, and when stop is called on
+ them they return to the beginning, thus wxMediaCtrl tries to keep consistant
+ for all types of media.
+
+ Note that when changing the state of the media through Play() and other methods,
+ the media may not actually be in the @c wxMEDIASTATE_PLAYING, for example.
+ If you are relying on the media being in certain state catch the event relevant
+ to the state. See wxMediaEvent for the kinds of events that you can catch.
+
+
+ @section mediactrl_video_size Video size
+
+ By default, wxMediaCtrl will scale the size of the video to the requested
+ amount passed to either its constructor or Create().
+ After calling wxMediaCtrl::Load or performing an equivilant operation,
+ you can subsequently obtain the "real" size of the video (if there is any)
+ by calling wxMediaCtrl::GetBestSize(). Note that the actual result on the
+ display will be slightly different when wxMediaCtrl::ShowPlayerControls is
+ activated and the actual video size will be less then specified due to the
+ extra controls provided by the native toolkit.
+ In addition, the backend may modify wxMediaCtrl::GetBestSize() to include
+ the size of the extra controls - so if you want the real size of the video
+ just disable wxMediaCtrl::ShowPlayerControls().
+
+ The idea with setting wxMediaCtrl::GetBestSize() to the size of the video is
+ that GetBestSize() is a wxWindow-derived function that is called when sizers
+ on a window recalculate.
+ What this means is that if you use sizers by default the video will show in
+ its original size without any extra assistance needed from the user.
+
+
+ @section mediactrl_player_controls Player controls
+
+ Normally, when you use wxMediaCtrl it is just a window for the video to play in.
+ However, some toolkits have their own media player interface.
+ For example, QuickTime generally has a bar below the video with a slider.
+ A special feature available to wxMediaCtrl, you can use the toolkits interface
+ instead of making your own by using the ShowPlayerControls() function.
+ There are several options for the flags parameter, with the two general flags
+ being @c wxMEDIACTRLPLAYERCONTROLS_NONE which turns off the native interface,
+ and @c wxMEDIACTRLPLAYERCONTROLS_DEFAULT which lets wxMediaCtrl decide what
+ native controls on the interface.
+ Be sure to review the caveats outlined in @ref mediactrl_video_size before doing so.
+
+
+ @section mediactrl_choosing_backend Choosing a backend
+
+ Generally, you should almost certainly leave this part up to wxMediaCtrl -
+ but if you need a certain backend for a particular reason, such as QuickTime
+ for playing .mov files, all you need to do to choose a specific backend is
+ to pass the name of the backend class to wxMediaCtrl::Create().
The following are valid backend identifiers:
- @beginTable
- @row2col{@b wxMEDIABACKEND_DIRECTSHOW, Use ActiveMovie/DirectShow. Uses the native ActiveMovie (I.E. DirectShow) control. Default backend on Windows and supported by nearly all Windows versions, even some Windows CE versions. May display a windows media player logo while inactive.}
- @row2col{@b wxMEDIABACKEND_QUICKTIME, Use QuickTime. Mac Only. WARNING: May not working correctly embedded in a wxNotebook.}
- @row2col{@b wxMEDIABACKEND_GSTREAMER, Use GStreamer. Unix Only. Requires GStreamer 0.8 along with at the very least the xvimagesink, xoverlay, and gst-play modules of gstreamer to function. You need the correct modules to play the relavant files, for example the mad module to play mp3s, etc.}
- @row2col{@b wxMEDIABACKEND_WMP10, Uses Windows Media Player 10 (Windows only) - works on mobile machines with Windows Media Player 10 and desktop machines with either Windows Media Player 9 or 10}
- @endTable
+ - @b wxMEDIABACKEND_DIRECTSHOW: Use ActiveMovie/DirectShow.
+ Uses the native ActiveMovie (I.E. DirectShow) control.
+ Default backend on Windows and supported by nearly all Windows versions,
+ even some Windows CE versions.
+ May display a windows media player logo while inactive.
+ - @b wxMEDIABACKEND_QUICKTIME: Use QuickTime. Mac Only.
+ WARNING: May not working correctly embedded in a wxNotebook.
+ - @b wxMEDIABACKEND_GSTREAMER, Use GStreamer. Unix Only.
+ Requires GStreamer 0.8 along with at the very least the xvimagesink, xoverlay,
+ and gst-play modules of gstreamer to function.
+ You need the correct modules to play the relavant files, for example the
+ mad module to play mp3s, etc.
+ - @b wxMEDIABACKEND_WMP10, Uses Windows Media Player 10 (Windows only) -
+ works on mobile machines with Windows Media Player 10 and desktop machines
+ with either Windows Media Player 9 or 10.
+
+ Note that other backends such as wxMEDIABACKEND_MCI can now be found at
+ wxCode (http://wxcode.sourceforge.net/).
+
+
+ @section mediactrl_creating_backend Creating a backend
+
+ Creating a backend for wxMediaCtrl is a rather simple process.
+ Simply derive from wxMediaBackendCommonBase and implement the methods you want.
+ The methods in wxMediaBackend correspond to those in wxMediaCtrl except for
+ wxMediaCtrl::CreateControl which does the actual creation of the control,
+ in cases where a custom control is not needed you may simply call wxControl::Create().
- Note that other backends such as wxMEDIABACKEND_MCI can now be found at wxCode(http://wxcode.sourceforge.net/).
+ You need to make sure to use the @c DECLARE_CLASS and @c IMPLEMENT_CLASS macros.
- @section class_mediactrl_creating_backend Creating a backend
+ The only real tricky part is that you need to make sure the file in compiled in,
+ which if there are just backends in there will not happen and you may need to
+ use a force link hack (see http://www.wxwidgets.org/wiki/index.php/RTTI).
- Creating a backend for wxMediaCtrl is a rather simple process. Simply derive from wxMediaBackendCommonBase
- and implement the methods you want. The methods in wxMediaBackend correspond to those in wxMediaCtrl except
- for CreateControl which does the actual creation of the control, in cases where a custom control is not
- needed you may simply call wxControl::Create().
+ This is a rather simple example of how to create a backend in the
+ wxActiveXContainer documentation.
- You need to make sure to use the @c DECLARE_CLASS and @c IMPLEMENT_CLASS macros.
- The only real tricky part is that you need to make sure the file in compiled in, which if there are
- just backends in there will not happen and you may need to use a force link hack
- (see http://www.wxwidgets.org/wiki/index.php/RTTI).
+ @library{wxmedia}
+ @category{media}
- This is a rather simple example of how to create a backend in the wxActiveXContainer documentation.
+ @see wxMediaEvent
*/
class wxMediaCtrl : public wxControl
{
public:
/**
- Default constructor - you MUST call Create before calling any other methods of wxMediaCtrl.
+ Default constructor - you MUST call Create() before calling any
+ other methods of wxMediaCtrl.
*/
wxMediaCtrl();
/**
- Constructor that calls Create(). You may prefer to call Create() directly to check
- to see if wxMediaCtrl is available on the system.
+ Constructor that calls Create().
+ You may prefer to call Create() directly to check to see if
+ wxMediaCtrl is available on the system.
@param parent
parent of this control. Must not be @NULL.
@param style
Optional styles.
@param szBackend
- Name of backend you want to use, leave blank to make
- wxMediaCtrl figure it out.
+ Name of backend you want to use, leave blank to make wxMediaCtrl figure it out.
@param validator
validator to use.
@param name
Window name.
*/
- wxMediaCtrl( wxWindow* parent, wxWindowID id, const wxString& fileName = wxT(""),
+ wxMediaCtrl(wxWindow* parent, wxWindowID id, const wxString& fileName = wxEmptyString,
const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize,
- long style = 0, const wxString& szBackend = wxT(""), const wxValidatorvalidator = wxDefaultValidator,
- const wxString& name = wxPanelNameStr );
-
+ long style = 0, const wxString& szBackend = wxEmptyString,
+ const wxValidator& validator = wxDefaultValidator,
+ const wxString& name = "mediaCtrl");
/**
- Creates this control. Returns @false if it can't load the movie located at @a fileName
+ Creates this control.
+ Returns @false if it can't load the movie located at @a fileName
or it cannot load one of its native backends.
- If you specify a file to open via @a fileName and you don't specify a backend to
- use, wxMediaCtrl tries each of its backends until one that can render the path referred to
- by @a fileName can be found.
+ If you specify a file to open via @a fileName and you don't specify a
+ backend to use, wxMediaCtrl tries each of its backends until one that
+ can render the path referred to by @a fileName can be found.
@param parent
parent of this control. Must not be @NULL.
@param style
Optional styles.
@param szBackend
- Name of backend you want to use, leave blank to make
- wxMediaCtrl figure it out.
+ Name of backend you want to use, leave blank to make wxMediaCtrl figure it out.
@param validator
validator to use.
@param name
Window name.
*/
- bool Create( wxWindow* parent, wxWindowID id, const wxString& fileName = wxT(""),
+ bool Create(wxWindow* parent, wxWindowID id, const wxString& fileName = wxEmptyString,
const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize,
- long style = 0, const wxString& szBackend = wxT(""), const wxValidatorvalidator = wxDefaultValidator,
- const wxString& name = wxPanelNameStr );
+ long style = 0, const wxString& szBackend = wxEmptyString,
+ const wxValidator& validator = wxDefaultValidator,
+ const wxString& name = "mediaCtrl");
/**
Obtains the best size relative to the original/natural size of the
- video, if there is any. See @ref class_mediactrl_video_size for more information.
+ video, if there is any.
+ See @ref mediactrl_video_size for more information.
*/
- wxSize GetBestSize();
+ wxSize GetBestSize() const;
/**
Obtains the playback rate, or speed of the media. @c 1.0 represents normal
@row2col{wxMEDIASTATE_PLAYING, The movie is currently playing.}
@endTable
*/
- wxMediaCtrlState GetState();
+ wxMediaState GetState();
/**
Gets the volume of the media from a 0.0 to 1.0 range.
- @note Due to rounding and other errors the value returned may not be the exact value
- sent to SetVolume().
+ @note Due to rounding and other errors the value returned may not be the
+ exact value sent to SetVolume().
*/
double GetVolume();
bool Load(const wxString& fileName);
/**
- Loads the location that uri refers to. Note that this is very implementation-dependant,
- although HTTP URI/URLs are generally supported, for example. Returns @false if loading fails.
+ Loads the location that uri refers to. Note that this is very
+ implementation-dependant, although HTTP URI/URLs are generally
+ supported, for example. Returns @false if loading fails.
*/
bool Load(const wxURI& uri);
/**
Same as Load(const wxURI& uri). Kept for wxPython compatibility.
*/
- bool LoadURI(const wxURI& uri);
+ bool LoadURI(const wxString& fileName);
/**
- Same as Load(const wxURI& uri, const wxURI& proxy). Kept for wxPython compatibility.
+ Same as Load(const wxURI& uri, const wxURI& proxy).
+ Kept for wxPython compatibility.
*/
- bool LoadURIWithProxy(const wxURI& uri, const wxURI& proxy);
+ bool LoadURIWithProxy(const wxString& fileName, const wxString& proxy);
/**
Pauses playback of the movie.
@todo Document the wxSeekMode parameter @a mode, and perhaps also the
wxFileOffset and wxSeekMode themselves.
*/
- wxFileOffset Seek(wxFileOffset where, wxSeekMode mode);
+ wxFileOffset Seek(wxFileOffset where, wxSeekMode mode = wxFromStart);
/**
Sets the playback rate, or speed of the media, to that referred by @a dRate.
default controls provided by the toolkit. The function takes a
wxMediaCtrlPlayerControls enumeration, please see available show modes there.
- For more see @ref class_mediactrl_player_controls.
+ For more info see @ref mediactrl_player_controls.
Currently only implemented on the QuickTime and DirectShow backends.
The function returns @true on success.
/**
Stops the media.
- See @ref class_mediactrl_operation for an overview of how stopping works.
+ See @ref mediactrl_operation for an overview of how stopping works.
*/
bool Stop();
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