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chxavplaylistnavicontrol.cpp
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Upload User: dangjiwu
Upload Date: 2013-07-19
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Code Size: 4k
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Symbian

Development Platform:

Visual C++

chxavplaylistnavicontrol.cpp：Code Content
  1. /*============================================================================*
  2.  *
  3.  * (c) 1995-2002 RealNetworks, Inc. Patents pending. All rights reserved.
  4.  *
  5.  *============================================================================*/
  7. /*
  9.    Description: 
  11.    draws and manages navi pane area shown during playlist navigate state
  13. */
  14. #include <aknutils.h>
  15. #include "chxavmisc.h"
  16. #include "chxavcleanupstack.h"
  17. #include "chxavcleanstring.h"
  19. #include "hxsym_debug.h"
  21. #include "chxavplaylistnavicontrol.h"
  24. ////////////////////////////////
  25. //
  26. CHXAvPlaylistNaviControl* CHXAvPlaylistNaviControl::NewL(CHXAvPlayer* pPlayer, const CCoeControl& parent)
  27. {
  28.     CHXAvPlaylistNaviControl* pSelf = new(ELeave) CHXAvPlaylistNaviControl();
  29.     AUTO_PUSH_POP(pSelf);
  30.     pSelf->ConstructL(pPlayer, parent);
  31.     return pSelf;
  32. }
  35. ///////////////////////////////////
  36. // ctor
  37. CHXAvPlaylistNaviControl::CHXAvPlaylistNaviControl()
  38. {
  39. }
  41. ///////////////////////////////////
  42. // dtor
  43. CHXAvPlaylistNaviControl::~CHXAvPlaylistNaviControl()
  44. {
  45.     if(m_spPlayer)
  46.     {
  47.         m_spPlayer->GetPlayerState().RemoveObserver(this);
  48.     }
  50. }
  52. ////////////////////////////
  53. //
  54. void CHXAvPlaylistNaviControl::ConstructL(CHXAvPlayer* pPlayer, const CCoeControl& parent)
  55. {
  56.     m_spPlayer = pPlayer;
  57.     m_spPlayer->GetPlayerState().AddObserver(this);
  59.     SetContainerWindowL(parent);
  60.     TRect rc(parent.Rect());
  61.     SetRect(rc);
  63.     // save this; we want to draw over whole navi control (see SizeChanged)
  64.     m_rcParent = rc;
  67.     //
  68.     // playlist text
  69.     //
  70.     const TInt CID_PLAYLIST_TEXT = 1;
  71.     m_spPlaylistText = CHXAvTextControl::NewL(*this, CID_PLAYLIST_TEXT);
  72.     m_spPlaylistText->SetTextColor(KRgbWhite);
  73.     m_spPlaylistText->UpdateFont(LatinBold12());
  74.     m_spPlaylistText->MakeVisible(ETrue);
  75.     m_spPlaylistText->SetRect(rc); // for now
  77.     UpdatePlaylistTextL();
  78. }
  80. //////////////////////////////////////////////
  81. // hide or show playlist menu items depending
  82. // on whether or not a playlist is loaded
  83. void CHXAvPlaylistNaviControl::UpdatePlaylistTextL()
  84. { 
  85.     bool bHaveRam = m_spPlayer->IsPlaylistLoaded(); 
  86.     if( bHaveRam )
  87.     {
  88.         // 1-based indexes
  89.         TInt idxCount = m_spPlayer->GetPlaylistItemCount();
  90.         TInt idxCurrent = m_spPlayer->GetPlaylistCurrentIndex() + 1;
  92.         CHXAvCleanString playUrl(m_spPlayer->GetPlayURL());
  93.         bool bLocal = CHXAvUtil::IsLocal(playUrl());
  95.         HX_ASSERT(idxCount >= 1 && idxCurrent >= 1);
  97.         if( idxCount > 1 )
  98.         {
  99.             //XXXLCM resource
  100.             _LIT(KLocalClipFormat, "Local clip %d/%d");
  101.             _LIT(KRemoteClipFormat, "Remote clip %d/%d");
  102.             TBuf<40> buf;
  103.             if( bLocal )
  104.             {
  105.                 buf.Format(KLocalClipFormat, idxCurrent, idxCount);
  106.             }
  107.             else
  108.             {
  109.                 buf.Format(KRemoteClipFormat, idxCurrent, idxCount);
  110.             }
  112.             // determine width needed
  113.             const CFont* pFont = m_spPlaylistText->GetFont();
  114.             TInt cxText = pFont->TextWidthInPixels(buf);
  116.             const TUint CX_RIGHT_BORDER = 2;
  118.             // size rect so text just fits
  119.             TRect rcText = m_rcParent;
  120.             rcText.iBr.iX -= CX_RIGHT_BORDER;
  121.             rcText.iTl.iX = rcText.iBr.iX - cxText;
  122.             if(rcText.iTl.iX < m_rcParent.iTl.iX )
  123.             {
  124.                 rcText.iTl.iX = m_rcParent.iTl.iX;
  125.             }    
  127.             m_spPlaylistText->SetRect(rcText);
  128.             m_spPlaylistText->SetText(buf);         
  129.         }
  130.         
  131.     }
  133. }
  135. ////////////////////////////////////////
  136. //IHXSymPlayerStateObserver
  137. void CHXAvPlaylistNaviControl::OnAdvancePlaylist()
  138. {      
  139.     UpdatePlaylistTextL();    
  140.     m_spRefreshCmd->Execute();
  141. }
  143. ////////////////////////////////////////
  144. //
  145. void 
  146. CHXAvPlaylistNaviControl::Draw(const TRect& /* rect */) const
  147. {
  148.     // don't draw background; navi pane container draws background for us
  149. }
  151. //////////////////////////////
  152. //
  153. // CCoeControl
  154. //
  155. TInt CHXAvPlaylistNaviControl::CountComponentControls() const
  156. { 
  157.     return 1;
  158. }
  161. //////////////////////////////
  162. //
  163. // CCoeControl
  164. //
  165. CCoeControl* CHXAvPlaylistNaviControl::ComponentControl(TInt aIndex) const
  166. {
  167.     HX_ASSERT(aIndex == 0);
  168.     return m_spPlaylistText.Ptr();
  169. }