lib/gui/esubtitle.cpp

   1 #include <lib/gui/esubtitle.h>
   2 #include <lib/gdi/grc.h>
   3 #include <lib/base/estring.h>
   4
   5         /*
   6                 ok, here's much room for improvements.
   7
   8                 first, the placing of the individual elements is sub-optimal.
   9                 then maybe a colored background would be an option.
  10                 ....
  11         */
  12
  13 eSubtitleWidget::eSubtitleWidget(eWidget *parent)
  14         : eWidget(parent), m_hide_subtitles_timer(eApp)
  15 {
  16         setBackgroundColor(gRGB(0,0,0,255));
  17         m_page_ok = 0;
  18         m_dvb_page_ok = 0;
  19         CONNECT(m_hide_subtitles_timer.timeout, eSubtitleWidget::clearPage);
  20 }
  21
  22 #define startX 50
  23 void eSubtitleWidget::setPage(const eDVBTeletextSubtitlePage &p)
  24 {
  25         m_page = p;
  26         m_page_ok = 1;
  27         invalidate(m_visible_region);  // invalidate old visible regions
  28         m_visible_region.rects.clear();
  29
  30         int elements = m_page.m_elements.size();
  31         if (elements)
  32         {
  33                 int startY = elements > 1
  34                         ? size().height() / 2
  35                         : size().height() / 3 * 2;
  36                 int width = size().width() - startX * 2;
  37                 int height = size().height() - startY;
  38                 int size_per_element = height / (elements ? elements : 1);
  39                 for (int i=0; i<elements; ++i)
  40                 {
  41                         eRect &area = m_page.m_elements[i].m_area;
  42                         area.setLeft(startX);
  43                         area.setTop(size_per_element * i + startY);
  44                         area.setWidth(width);
  45                         area.setHeight(size_per_element);
  46                         m_visible_region.rects.push_back(area);
  47                 }
  48         }
  49         m_hide_subtitles_timer.start(7500, true);
  50         invalidate(m_visible_region);  // invalidate new regions
  51 }
  52
  53 void eSubtitleWidget::setPage(const eDVBSubtitlePage &p)
  54 {
  55         m_dvb_page = p;
  56         invalidate(m_visible_region);  // invalidate old visible regions
  57         m_visible_region.rects.clear();
  58         for (std::list<eDVBSubtitleRegion>::iterator it(m_dvb_page.m_regions.begin()); it != m_dvb_page.m_regions.end(); ++it)
  59                 m_visible_region.rects.push_back(eRect(it->m_position, it->m_pixmap->size()));
  60         m_dvb_page_ok = 1;
  61         m_hide_subtitles_timer.start(7500, true);
  62         invalidate(m_visible_region);  // invalidate new regions
  63 }
  64
  65 void eSubtitleWidget::clearPage()
  66 {
  67         eDebug("subtitle timeout... hide");
  68         m_page_ok = 0;
  69         m_dvb_page_ok = 0;
  70         invalidate(m_visible_region);
  71         m_visible_region.rects.clear();
  72 }
  73
  74 int eSubtitleWidget::event(int event, void *data, void *data2)
  75 {
  76         switch (event)
  77         {
  78         case evtPaint:
  79         {
  80                 ePtr<eWindowStyle> style;
  81                 gPainter &painter = *(gPainter*)data2;
  82
  83                 getStyle(style);
  84
  85                 eWidget::event(event, data, data2);
  86                 ePtr<gFont> font = new gFont("Regular", 38);
  87                 painter.setFont(font);
  88
  89                 if (m_page_ok)
  90                 {
  91                         int elements = m_page.m_elements.size();
  92                         for (int i=0; i<elements; ++i)
  93                         {
  94                                 eDVBTeletextSubtitlePageElement &element = m_page.m_elements[i];
  95                                 eRect &area = element.m_area;
  96                                 eRect shadow = area;
  97                                 shadow.moveBy(3,3);
  98                                 painter.setForegroundColor(gRGB(0,0,0));
  99                                 painter.renderText(shadow, element.m_text, gPainter::RT_WRAP|gPainter::RT_VALIGN_CENTER|gPainter::RT_HALIGN_CENTER);
 100                                 painter.setForegroundColor(element.m_color);
 101                                 painter.renderText(area, element.m_text, gPainter::RT_WRAP|gPainter::RT_VALIGN_CENTER|gPainter::RT_HALIGN_CENTER);
 102                         }
 103                 }
 104                 else if (m_dvb_page_ok)
 105                 {
 106                         for (std::list<eDVBSubtitleRegion>::iterator it(m_dvb_page.m_regions.begin()); it != m_dvb_page.m_regions.end(); ++it)
 107                                 painter.blit(it->m_pixmap, it->m_position);
 108                 }
 109                 return 0;
 110         }
 111         default:
 112                 return eWidget::event(event, data, data2);
 113         }
 114 }