git.sesse.net Git - vlc/blob - modules/gui/wxwindows/video.cpp

   1 /*****************************************************************************
   2  * video.cpp : wxWindows plugin for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2000-2004, 2003 VideoLAN
   5  * $Id$
   6  *
   7  * Authors: Gildas Bazin <gbazin@videolan.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  22  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27 #include <vlc/vlc.h>
  28 #include <vlc/vout.h>
  29 #include <vlc/intf.h>
  30
  31 #include "wxwindows.h"
  32
  33 static void *GetWindow( intf_thread_t *p_intf, vout_thread_t *,
  34                         int *pi_x_hint, int *pi_y_hint,
  35                         unsigned int *pi_width_hint,
  36                         unsigned int *pi_height_hint );
  37
  38 static void ReleaseWindow( intf_thread_t *p_intf, void *p_window );
  39
  40 static int ControlWindow( intf_thread_t *p_intf, void *p_window,
  41                           int i_query, va_list args );
  42
  43 /* IDs for the controls and the menu commands */
  44 enum
  45 {
  46     UpdateSize_Event = wxID_HIGHEST + 1,
  47     UpdateHide_Event,
  48     SetStayOnTop_Event,
  49 };
  50
  51 class VideoWindow: public wxWindow
  52 {
  53 public:
  54     /* Constructor */
  55     VideoWindow( intf_thread_t *_p_intf, wxWindow *p_parent );
  56     virtual ~VideoWindow();
  57
  58     void *GetWindow( vout_thread_t *p_vout, int *, int *,
  59                      unsigned int *, unsigned int * );
  60     void ReleaseWindow( void * );
  61     int  ControlWindow( void *, int, va_list );
  62
  63 private:
  64     intf_thread_t *p_intf;
  65     vout_thread_t *p_vout;
  66     wxWindow *p_parent;
  67     vlc_mutex_t lock;
  68     vlc_bool_t b_shown;
  69
  70     wxWindow *p_child_window;
  71
  72     void UpdateSize( wxSizeEvent & );
  73     void UpdateHide( wxSizeEvent & );
  74     void OnControlEvent( wxCommandEvent & );
  75
  76     DECLARE_EVENT_TABLE();
  77 };
  78
  79 DEFINE_LOCAL_EVENT_TYPE( wxEVT_VLC_VIDEO );
  80
  81 BEGIN_EVENT_TABLE(VideoWindow, wxWindow)
  82     EVT_CUSTOM( wxEVT_SIZE, UpdateSize_Event, VideoWindow::UpdateSize )
  83     EVT_CUSTOM( wxEVT_SIZE, UpdateHide_Event, VideoWindow::UpdateHide )
  84     EVT_COMMAND( SetStayOnTop_Event, wxEVT_VLC_VIDEO,
  85                  VideoWindow::OnControlEvent )
  86 END_EVENT_TABLE()
  87
  88 /*****************************************************************************
  89  * Public methods.
  90  *****************************************************************************/
  91 wxWindow *VideoWindow( intf_thread_t *p_intf, wxWindow *p_parent )
  92 {
  93     return new VideoWindow::VideoWindow( p_intf, p_parent );
  94 }
  95
  96 /*****************************************************************************
  97  * Constructor.
  98  *****************************************************************************/
  99 VideoWindow::VideoWindow( intf_thread_t *_p_intf, wxWindow *_p_parent ):
 100     wxWindow( _p_parent, -1 )
 101 {
 102     /* Initializations */
 103     p_intf = _p_intf;
 104     p_parent = _p_parent;
 105
 106     vlc_mutex_init( p_intf, &lock );
 107
 108     p_vout = NULL;
 109
 110     p_intf->pf_request_window = ::GetWindow;
 111     p_intf->pf_release_window = ::ReleaseWindow;
 112     p_intf->pf_control_window = ::ControlWindow;
 113
 114     p_intf->p_sys->p_video_window = this;
 115     p_child_window = new wxWindow( this, -1, wxDefaultPosition, wxSize(0,0) );
 116     p_child_window->Show();
 117     Show();
 118     b_shown = VLC_TRUE;
 119
 120     p_intf->p_sys->p_video_sizer = new wxBoxSizer( wxHORIZONTAL );
 121     p_intf->p_sys->p_video_sizer->Add( this, 1, wxEXPAND );
 122
 123     ReleaseWindow( NULL );
 124 }
 125
 126 VideoWindow::~VideoWindow()
 127 {
 128     vlc_mutex_lock( &lock );
 129     if( p_vout )
 130     {
 131         if( !p_intf->psz_switch_intf )
 132         {
 133             if( vout_Control( p_vout, VOUT_CLOSE ) != VLC_SUCCESS )
 134                 vout_Control( p_vout, VOUT_REPARENT );
 135         }
 136         else
 137         {
 138             if( vout_Control( p_vout, VOUT_REPARENT ) != VLC_SUCCESS )
 139                 vout_Control( p_vout, VOUT_CLOSE );
 140         }
 141     }
 142
 143     p_intf->pf_request_window = NULL;
 144     p_intf->pf_release_window = NULL;
 145     p_intf->pf_control_window = NULL;
 146     vlc_mutex_unlock( &lock );
 147
 148     vlc_mutex_destroy( &lock );
 149 }
 150
 151 /*****************************************************************************
 152  * Private methods.
 153  *****************************************************************************/
 154 static void *GetWindow( intf_thread_t *p_intf, vout_thread_t *p_vout,
 155                         int *pi_x_hint, int *pi_y_hint,
 156                         unsigned int *pi_width_hint,
 157                         unsigned int *pi_height_hint )
 158 {
 159     return p_intf->p_sys->p_video_window->GetWindow( p_vout,
 160                                                      pi_x_hint, pi_y_hint,
 161                                                      pi_width_hint,
 162                                                      pi_height_hint );
 163 }
 164
 165 /* Part of the hack to get the X11 window handle from the GtkWidget */
 166 #ifdef __WXGTK__
 167 extern "C" {
 168 #ifdef __WXGTK20__
 169     int gdk_x11_drawable_get_xid( void * );
 170 #endif
 171     void *gtk_widget_get_parent_window( void * );
 172 }
 173 #endif
 174
 175 void *VideoWindow::GetWindow( vout_thread_t *_p_vout,
 176                               int *pi_x_hint, int *pi_y_hint,
 177                               unsigned int *pi_width_hint,
 178                               unsigned int *pi_height_hint )
 179 {
 180 #if defined(__WXGTK__) || defined(WIN32)
 181     vlc_mutex_lock( &lock );
 182
 183     if( p_vout )
 184     {
 185         vlc_mutex_unlock( &lock );
 186         msg_Dbg( p_intf, "Video window already in use" );
 187         return NULL;
 188     }
 189
 190     p_vout = _p_vout;
 191
 192     wxSizeEvent event( wxSize(*pi_width_hint, *pi_height_hint),
 193                        UpdateSize_Event );
 194     AddPendingEvent( event );
 195     vlc_mutex_unlock( &lock );
 196
 197 #ifdef __WXGTK__
 198     GtkWidget *p_widget = p_child_window->GetHandle();
 199
 200 #ifdef __WXGTK20__
 201     return (void *)gdk_x11_drawable_get_xid(
 202                gtk_widget_get_parent_window( p_widget ) );
 203 #elif defined(__WXGTK__)
 204     return (void *)*(int *)( (char *)gtk_widget_get_parent_window( p_widget )
 205                + 2 * sizeof(void *) );
 206 #endif
 207
 208 #elif defined(WIN32)
 209     return (void*)GetHandle();
 210
 211 #endif
 212
 213 #else // defined(__WXGTK__) || defined(WIN32)
 214     return NULL;
 215
 216 #endif
 217 }
 218
 219 static void ReleaseWindow( intf_thread_t *p_intf, void *p_window )
 220 {
 221     return p_intf->p_sys->p_video_window->ReleaseWindow( p_window );
 222 }
 223
 224 void VideoWindow::ReleaseWindow( void *p_window )
 225 {
 226     vlc_mutex_lock( &lock );
 227
 228     p_vout = NULL;
 229
 230 #if defined(__WXGTK__) || defined(WIN32)
 231     wxSizeEvent event( wxSize(0, 0), UpdateHide_Event );
 232     AddPendingEvent( event );
 233 #endif
 234
 235     vlc_mutex_unlock( &lock );
 236 }
 237
 238 void VideoWindow::UpdateSize( wxSizeEvent &event )
 239 {
 240     if( !b_shown )
 241     {
 242         p_intf->p_sys->p_video_sizer->Show( this, TRUE );
 243         p_intf->p_sys->p_video_sizer->Layout();
 244         SetFocus();
 245         b_shown = VLC_TRUE;
 246     }
 247     p_intf->p_sys->p_video_sizer->SetMinSize( event.GetSize() );
 248
 249     wxCommandEvent intf_event( wxEVT_INTF, 0 );
 250     p_parent->AddPendingEvent( intf_event );
 251 }
 252
 253 void VideoWindow::UpdateHide( wxSizeEvent &event )
 254 {
 255     if( b_shown )
 256     {
 257         p_intf->p_sys->p_video_sizer->Show( this, FALSE );
 258         p_intf->p_sys->p_video_sizer->Layout();
 259         b_shown = VLC_FALSE;
 260
 261         SetSize(0,0);
 262         Show();
 263     }
 264     p_intf->p_sys->p_video_sizer->SetMinSize( event.GetSize() );
 265
 266     wxCommandEvent intf_event( wxEVT_INTF, 0 );
 267     p_parent->AddPendingEvent( intf_event );
 268 }
 269
 270 void VideoWindow::OnControlEvent( wxCommandEvent &event )
 271 {
 272     switch( event.GetId() )
 273     {
 274     case SetStayOnTop_Event:
 275         wxCommandEvent intf_event( wxEVT_INTF, 1 );
 276         intf_event.SetInt( event.GetInt() );
 277         p_parent->AddPendingEvent( intf_event );
 278         break;
 279     }
 280 }
 281
 282 static int ControlWindow( intf_thread_t *p_intf, void *p_window,
 283                           int i_query, va_list args )
 284 {
 285     return p_intf->p_sys->p_video_window->ControlWindow( p_window, i_query,
 286                                                          args );
 287 }
 288
 289 int VideoWindow::ControlWindow( void *p_window, int i_query, va_list args )
 290 {
 291     int i_ret = VLC_EGENERIC;
 292
 293     vlc_mutex_lock( &lock );
 294
 295     switch( i_query )
 296     {
 297         case VOUT_SET_ZOOM:
 298         {
 299             double f_arg = va_arg( args, double );
 300
 301             /* Update dimensions */
 302             wxSizeEvent event( wxSize((int)(p_vout->i_window_width * f_arg),
 303                                       (int)(p_vout->i_window_height * f_arg)),
 304                                UpdateSize_Event );
 305             AddPendingEvent( event );
 306
 307             i_ret = VLC_SUCCESS;
 308         }
 309         break;
 310
 311         case VOUT_SET_STAY_ON_TOP:
 312         {
 313             int i_arg = va_arg( args, int );
 314             wxCommandEvent event( wxEVT_VLC_VIDEO, SetStayOnTop_Event );
 315             event.SetInt( i_arg );
 316             AddPendingEvent( event );
 317
 318             i_ret = VLC_SUCCESS;
 319         }
 320         break;
 321
 322         default:
 323             msg_Dbg( p_intf, "control query not supported" );
 324             break;
 325     }
 326
 327     vlc_mutex_unlock( &lock );
 328
 329     return i_ret;
 330 }