git.sesse.net Git - vlc/blob - modules/gui/wxwidgets/fileinfo.cpp

   1 /*****************************************************************************
   2  * fileinfo.cpp : wxWindows plugin for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2000-2004 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Sigmund Augdal Helberg <dnumgis@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/intf.h>
  29
  30 #include "wxwidgets.h"
  31
  32 /*****************************************************************************
  33  * Event Table.
  34  *****************************************************************************/
  35
  36 static int ItemChanged( vlc_object_t *, const char *,
  37                         vlc_value_t, vlc_value_t, void * );
  38
  39
  40 /* IDs for the controls and the menu commands */
  41 enum
  42 {
  43     Close_Event
  44 };
  45
  46 BEGIN_EVENT_TABLE(FileInfo, wxFrame)
  47     /* Button events */
  48     EVT_BUTTON(wxID_OK, FileInfo::OnButtonClose)
  49
  50     /* Hide the window when the user closes the window */
  51     EVT_CLOSE(FileInfo::OnClose)
  52
  53 END_EVENT_TABLE()
  54
  55 /*****************************************************************************
  56  * Constructor.
  57  *****************************************************************************/
  58 FileInfo::FileInfo( intf_thread_t *_p_intf, wxWindow *p_parent ):
  59     wxFrame( p_parent, -1, wxU(_("Stream and media info")), wxDefaultPosition,
  60              wxDefaultSize, wxDEFAULT_FRAME_STYLE )
  61 {
  62     playlist_t *p_playlist;
  63
  64     /* Initializations */
  65     p_intf = _p_intf;
  66     SetIcon( *p_intf->p_sys->p_icon );
  67     SetAutoLayout( TRUE );
  68
  69     /* Create a panel to put everything in */
  70     wxPanel *panel = new wxPanel( this, -1 );
  71     panel->SetAutoLayout( TRUE );
  72
  73     fileinfo_tree =
  74         new wxTreeCtrl( panel, -1, wxDefaultPosition, wxSize( 350, 350 ),
  75                         wxTR_HAS_BUTTONS | wxTR_HIDE_ROOT | wxSUNKEN_BORDER );
  76
  77     fileinfo_root_label = wxT("");
  78
  79     /* Place everything in sizers */
  80     wxBoxSizer *main_sizer = new wxBoxSizer( wxVERTICAL );
  81     wxBoxSizer *panel_sizer = new wxBoxSizer( wxVERTICAL );
  82     panel_sizer->Add( fileinfo_tree, 1, wxEXPAND | wxALL, 5 );
  83     panel_sizer->Layout();
  84     panel->SetSizerAndFit( panel_sizer );
  85     main_sizer->Add( panel, 1, wxEXPAND, 0 );
  86     main_sizer->Layout();
  87     SetSizerAndFit( main_sizer );
  88
  89     p_playlist = (playlist_t *)vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
  90                                                 FIND_ANYWHERE );
  91
  92     if( p_playlist )
  93     {
  94         var_AddCallback( p_playlist, "item-change", ItemChanged, this );
  95         vlc_object_release( p_playlist );
  96     }
  97
  98     b_need_update = VLC_TRUE;
  99     UpdateFileInfo();
 100 }
 101
 102 void FileInfo::UpdateFileInfo()
 103 {
 104     input_thread_t *p_input =
 105         (input_thread_t *)vlc_object_find( p_intf, VLC_OBJECT_INPUT,
 106                                            FIND_ANYWHERE );
 107
 108     if( !p_input || p_input->b_dead || !p_input->input.p_item->psz_name )
 109     {
 110         if( fileinfo_root )
 111         {
 112             fileinfo_root_label = wxT("");
 113             fileinfo_tree->DeleteChildren( fileinfo_root );
 114         }
 115         if (p_input)
 116         {
 117             vlc_object_release(p_input);
 118         }
 119         return;
 120     }
 121
 122     if( !fileinfo_root )
 123     {
 124         /* On linux, the first argument of wxTreeCtrl::AddRoot() can be
 125          * retrieved with the GetItemText() method, but it doesn't work on
 126          * Windows when the wxTR_HIDE_ROOT style is set. That's why we need to
 127          * use the fileinfo_root_label variable... */
 128         fileinfo_root =
 129             fileinfo_tree->AddRoot( wxL2U(p_input->input.p_item->psz_name) );
 130         fileinfo_root_label = wxL2U(p_input->input.p_item->psz_name);
 131     }
 132     else if( fileinfo_root_label == wxL2U(p_input->input.p_item->psz_name) &&
 133              b_need_update == VLC_FALSE )
 134     {
 135         vlc_object_release(p_input);
 136         return;
 137     }
 138
 139     /* We rebuild the tree from scratch */
 140     fileinfo_tree->DeleteChildren( fileinfo_root );
 141     fileinfo_root_label = wxL2U(p_input->input.p_item->psz_name);
 142
 143     vlc_mutex_lock( &p_input->input.p_item->lock );
 144     for( int i = 0; i < p_input->input.p_item->i_categories; i++ )
 145     {
 146         info_category_t *p_cat = p_input->input.p_item->pp_categories[i];
 147
 148         wxTreeItemId cat = fileinfo_tree->AppendItem( fileinfo_root,
 149                                                       wxU(p_cat->psz_name) );
 150         for( int j = 0; j < p_cat->i_infos; j++ )
 151         {
 152             info_t *p_info = p_cat->pp_infos[j];
 153
 154             if( p_info->psz_value[0] != 0 )
 155             /* We only wanna show fields that have an actual value */
 156             {
 157                 fileinfo_tree->AppendItem( cat, (wxString)wxU(p_info->psz_name)
 158                                         + wxT(": ") + wxU(p_info->psz_value) );
 159             }
 160         }
 161         fileinfo_tree->Expand( cat );
 162     }
 163     vlc_mutex_unlock( &p_input->input.p_item->lock );
 164
 165     b_need_update = VLC_FALSE;
 166
 167     vlc_object_release(p_input);
 168     return;
 169 }
 170
 171 FileInfo::~FileInfo()
 172 {
 173 }
 174
 175 void FileInfo::OnButtonClose( wxCommandEvent& event )
 176 {
 177     wxCloseEvent cevent;
 178     OnClose(cevent);
 179 }
 180
 181 void FileInfo::OnClose( wxCloseEvent& WXUNUSED(event) )
 182 {
 183     Hide();
 184 }
 185
 186 static int ItemChanged( vlc_object_t *p_this, const char *psz_var,
 187                         vlc_value_t oldval, vlc_value_t newval, void *param )
 188 {
 189     FileInfo *p_fileinfo = (FileInfo *)param;
 190     p_fileinfo->b_need_update = VLC_TRUE;
 191     return VLC_SUCCESS;
 192 }