git.sesse.net Git - vlc/blob - modules/gui/qt4/components/video_widget.cpp

   1 /*****************************************************************************
   2  * video_widget.cpp : Embedded video output
   3  ****************************************************************************
   4  * Copyright (C) 2006 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 #include "dialogs_provider.hpp"
  25 #include <vlc/vout.h>
  26 #include "qt4.hpp"
  27 #include "components/video_widget.hpp"
  28 #include "main_interface.hpp"
  29
  30 static void *DoRequest( intf_thread_t *, vout_thread_t *, int*,int*,
  31                         unsigned int *, unsigned int * );
  32 static void DoRelease( intf_thread_t *, void * );
  33 static int DoControl( intf_thread_t *, void *, int, va_list );
  34
  35 bool need_update;
  36
  37 VideoWidget::VideoWidget( intf_thread_t *_p_i ) : QFrame( NULL ),
  38                                                               p_intf( _p_i )
  39 {
  40     vlc_mutex_init( p_intf, &lock );
  41
  42     p_intf->pf_request_window  = ::DoRequest;
  43     p_intf->pf_release_window  = ::DoRelease;
  44     p_intf->pf_control_window  = ::DoControl;
  45     p_intf->p_sys->p_video = this;
  46     p_vout = NULL;
  47
  48     setFrameStyle(QFrame::Panel | QFrame::Raised);
  49
  50     setSizePolicy( QSizePolicy::Preferred, QSizePolicy::Preferred );
  51
  52     connect( DialogsProvider::getInstance(NULL)->fixed_timer,
  53              SIGNAL( timeout() ), this, SLOT( update() ) );
  54
  55     need_update = false;
  56 }
  57
  58 void VideoWidget::update()
  59 {
  60     if( need_update )
  61     {
  62         p_intf->p_sys->p_mi->resize( p_intf->p_sys->p_mi->sizeHint() );
  63         need_update = false;
  64     }
  65 }
  66
  67 VideoWidget::~VideoWidget()
  68 {
  69     vlc_mutex_lock( &lock );
  70     if( p_vout )
  71     {
  72         if( !p_intf->psz_switch_intf )
  73         {
  74             if( vout_Control( p_vout, VOUT_CLOSE ) != VLC_SUCCESS )
  75                 vout_Control( p_vout, VOUT_REPARENT );
  76         }
  77         else
  78         {
  79             if( vout_Control( p_vout, VOUT_REPARENT ) != VLC_SUCCESS )
  80                 vout_Control( p_vout, VOUT_CLOSE );
  81         }
  82     }
  83     p_intf->pf_request_window = NULL;
  84     p_intf->pf_release_window = NULL;
  85     p_intf->pf_control_window = NULL;
  86     vlc_mutex_unlock( &lock );
  87     vlc_mutex_destroy( &lock );
  88 }
  89
  90 QSize VideoWidget::sizeHint() const
  91 {
  92     return p_intf->p_sys->p_mi->videoSize;
  93 }
  94
  95 static void *DoRequest( intf_thread_t *p_intf, vout_thread_t *p_vout,
  96                         int *pi1, int *pi2, unsigned int*pi3,unsigned int*pi4)
  97 {
  98     return p_intf->p_sys->p_video->Request( p_vout, pi1, pi2, pi3, pi4 );
  99 }
 100
 101 void *VideoWidget::Request( vout_thread_t *p_nvout, int *pi_x, int *pi_y,
 102                            unsigned int *pi_width, unsigned int *pi_height )
 103 {
 104     if( p_vout )
 105     {
 106         msg_Dbg( p_intf, "embedded video already in use" );
 107         return NULL;
 108     }
 109     p_vout = p_nvout;
 110
 111     fprintf( stderr, "[Before update] MI constraints %ix%i -> %ix%i\n",
 112                     p_intf->p_sys->p_mi->minimumSize().width(),
 113                     p_intf->p_sys->p_mi->minimumSize().height(),
 114                     p_intf->p_sys->p_mi->maximumSize().width(),
 115                     p_intf->p_sys->p_mi->maximumSize().height() );
 116
 117     setMinimumSize( 1,1 );
 118     p_intf->p_sys->p_mi->videoSize = QSize( *pi_width, *pi_height );
 119     updateGeometry();
 120     need_update = true;
 121     fprintf( stderr, "[After update] MI constraints %ix%i -> %ix%i - Fr %ix%i -> %ix%i (hint %ix%i)\n",
 122                     p_intf->p_sys->p_mi->minimumSize().width(),
 123                     p_intf->p_sys->p_mi->minimumSize().height(),
 124                     p_intf->p_sys->p_mi->maximumSize().width(),
 125                     p_intf->p_sys->p_mi->maximumSize().height(),
 126                     minimumSize().width(),
 127                     minimumSize().height(),
 128                     maximumSize().width(),
 129                     maximumSize().height(),
 130                     sizeHint().width(),sizeHint().height()
 131            );
 132
 133     return  (void*)winId();
 134 }
 135
 136 static void DoRelease( intf_thread_t *p_intf, void *p_win )
 137 {
 138     return p_intf->p_sys->p_video->Release( p_win );
 139 }
 140
 141 void VideoWidget::Release( void *p_win )
 142 {
 143     if( !config_GetInt( p_intf, "qt-always-video" ) );
 144     {
 145         p_intf->p_sys->p_mi->videoSize = QSize ( 1,1 );
 146     }
 147     fprintf( stderr, "[Before R update] MI constraints %ix%i -> %ix%i\n",
 148                     p_intf->p_sys->p_mi->minimumSize().width(),
 149                     p_intf->p_sys->p_mi->minimumSize().height(),
 150                     p_intf->p_sys->p_mi->maximumSize().width(),
 151                     p_intf->p_sys->p_mi->maximumSize().height() );
 152
 153     updateGeometry();
 154
 155 //    p_intf->p_sys->p_mi->setMinimumSize( 500,
 156 //                                       p_intf->p_sys->p_mi->addSize.height() );
 157     if( !config_GetInt( p_intf, "qt-always-video" ) )
 158         need_update = true;
 159
 160     fprintf( stderr, "[After R update] MI constraints %ix%i -> %ix%i\n",
 161                     p_intf->p_sys->p_mi->minimumSize().width(),
 162                     p_intf->p_sys->p_mi->minimumSize().height(),
 163                     p_intf->p_sys->p_mi->maximumSize().width(),
 164                     p_intf->p_sys->p_mi->maximumSize().height() );
 165
 166     p_vout = NULL;
 167 }
 168
 169
 170 static int DoControl( intf_thread_t *p_intf, void *p_win, int i_q, va_list a )
 171 {
 172     return p_intf->p_sys->p_video->Control( p_win, i_q, a );
 173 }
 174
 175 int VideoWidget::Control( void *p_window, int i_query, va_list args )
 176 {
 177     int i_ret = VLC_EGENERIC;
 178     vlc_mutex_lock( &lock );
 179     switch( i_query )
 180     {
 181         case VOUT_GET_SIZE:
 182         {
 183             unsigned int *pi_width  = va_arg( args, unsigned int * );
 184             unsigned int *pi_height = va_arg( args, unsigned int * );
 185             *pi_width = frame->width();
 186             *pi_height = frame->height();
 187             i_ret = VLC_SUCCESS;
 188             break;
 189         }
 190         case VOUT_SET_SIZE:
 191         {
 192             unsigned int i_width  = va_arg( args, unsigned int );
 193             unsigned int i_height = va_arg( args, unsigned int );
 194
 195             if( !i_width && p_vout ) i_width = p_vout->i_window_width;
 196             if( !i_height && p_vout ) i_height = p_vout->i_window_height;
 197
 198             frame->resize( i_width, i_height );
 199             i_ret = VLC_SUCCESS;
 200             break;
 201         }
 202         case VOUT_SET_STAY_ON_TOP:
 203         {
 204             /// \todo
 205             break;
 206         }
 207         default:
 208             msg_Warn( p_intf, "unsupported control query" );
 209             break;
 210     }
 211     vlc_mutex_unlock( &lock );
 212     return i_ret;
 213 }