MythTV: interactivescreen.cpp Source File

00001 #include "interactivescreen.h"
00002 
00003 InteractiveScreen::InteractiveScreen(MythPlayer *player,
00004                                      const QString &name) :
00005     MythScreenType((MythScreenType*)NULL, name),
00006     m_player(player),  m_safeArea(QRect())
00007 {
00008     UpdateArea();
00009 }
00010 
00011 InteractiveScreen::~InteractiveScreen(void)
00012 {
00013 }
00014 
00015 void InteractiveScreen::Close(void)
00016 {
00017     if (m_player && m_player->GetVideoOutput())
00018         m_player->GetVideoOutput()->SetVideoResize(QRect());
00019 }
00020 
00021 void InteractiveScreen::UpdateArea(void)
00022 {
00023     if (m_ChildrenList.isEmpty())
00024     {
00025         m_safeArea = QRect();
00026     }
00027     else if (m_player && m_player->GetVideoOutput())
00028     {
00029         float tmp = 0.0;
00030         QRect dummy;
00031         m_player->GetVideoOutput()->GetOSDBounds(dummy, m_safeArea, tmp, tmp, tmp);
00032     }
00033     SetArea(MythRect(m_safeArea));
00034 }
00035 
00036 void InteractiveScreen::OptimiseDisplayedArea(void)
00037 {
00038     UpdateArea();
00039 
00040     QRegion visible;
00041     QListIterator<MythUIType *> i(m_ChildrenList);
00042     while (i.hasNext())
00043     {
00044         MythUIType *img = i.next();
00045         visible = visible.united(img->GetArea());
00046     }
00047 
00048     if (visible.isEmpty())
00049         return;
00050 
00051     QRect bounding  = visible.boundingRect();
00052     bounding = bounding.translated(m_safeArea.topLeft());
00053     bounding = m_safeArea.intersected(bounding);
00054     int left = m_safeArea.left() - bounding.left();
00055     int top  = m_safeArea.top()  - bounding.top();
00056     SetArea(MythRect(bounding));
00057 
00058     i.toFront();;
00059     while (i.hasNext())
00060     {
00061         MythUIType *img = i.next();
00062         img->SetArea(img->GetArea().translated(left, top));
00063     }
00064 }