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::eSubtitleStyle eSubtitleWidget::subtitleStyles[Subtitle_MAX];
  14
  15 eSubtitleWidget::eSubtitleWidget(eWidget *parent)
  16         : eWidget(parent), m_hide_subtitles_timer(eTimer::create(eApp))
  17 {
  18         setBackgroundColor(gRGB(0,0,0,255));
  19         m_page_ok = 0;
  20         m_dvb_page_ok = 0;
  21         m_pango_page_ok = 0;
  22         CONNECT(m_hide_subtitles_timer->timeout, eSubtitleWidget::clearPage);
  23 }
  24
  25 #define startX 50
  26 void eSubtitleWidget::setPage(const eDVBTeletextSubtitlePage &p)
  27 {
  28         m_page = p;
  29         m_page_ok = 1;
  30         invalidate(m_visible_region);  // invalidate old visible regions
  31         m_visible_region.rects.clear();
  32
  33         int elements = m_page.m_elements.size();
  34         if (elements)
  35         {
  36                 int startY = elements > 1
  37                         ? size().height() / 2
  38                         : size().height() / 3 * 2;
  39                 int width = size().width() - startX * 2;
  40                 int height = size().height() - startY;
  41                 int size_per_element = height / (elements ? elements : 1);
  42                 for (int i=0; i<elements; ++i)
  43                 {
  44                         eRect &area = m_page.m_elements[i].m_area;
  45                         area.setLeft(startX);
  46                         area.setTop(size_per_element * i + startY);
  47                         area.setWidth(width);
  48                         area.setHeight(size_per_element);
  49                         m_visible_region.rects.push_back(area);
  50                 }
  51         }
  52         m_hide_subtitles_timer->start(7500, true);
  53         invalidate(m_visible_region);  // invalidate new regions
  54 }
  55
  56 void eSubtitleWidget::setPage(const eDVBSubtitlePage &p)
  57 {
  58         eDebug("setPage");
  59         m_dvb_page = p;
  60         invalidate(m_visible_region);  // invalidate old visible regions
  61         m_visible_region.rects.clear();
  62         for (std::list<eDVBSubtitleRegion>::iterator it(m_dvb_page.m_regions.begin()); it != m_dvb_page.m_regions.end(); ++it)
  63         {
  64                 eDebug("add %d %d %d %d", it->m_position.x(), it->m_position.y(), it->m_pixmap->size().width(), it->m_pixmap->size().height());
  65                 eRect r = eRect(it->m_position, it->m_pixmap->size());
  66                 r.scale(size().width(), 720, size().height(), 576);
  67                 m_visible_region.rects.push_back(r);
  68         }
  69         m_dvb_page_ok = 1;
  70         m_hide_subtitles_timer->start(7500, true);
  71         invalidate(m_visible_region);  // invalidate new regions
  72 }
  73
  74 void eSubtitleWidget::setPage(const ePangoSubtitlePage &p)
  75 {
  76         m_pango_page = p;
  77         m_pango_page_ok = 1;
  78         invalidate(m_visible_region);  // invalidate old visible regions
  79         m_visible_region.rects.clear();
  80
  81         int elements = m_pango_page.m_elements.size();
  82         if (elements)
  83         {
  84                 int startY = elements > 1
  85                         ? size().height() / 2
  86                         : size().height() / 3 * 2;
  87                 int width = size().width() - startX * 2;
  88                 int height = size().height() - startY;
  89                 int size_per_element = height / (elements ? elements : 1);
  90                 for (int i=0; i<elements; ++i)
  91                 {
  92                         eRect &area = m_pango_page.m_elements[i].m_area;
  93                         area.setLeft(startX);
  94                         area.setTop(size_per_element * i + startY);
  95                         area.setWidth(width);
  96                         area.setHeight(size_per_element);
  97                         m_visible_region.rects.push_back(area);
  98                 }
  99         }
 100         int timeout_ms = m_pango_page.m_timeout;
 101         m_hide_subtitles_timer->start(timeout_ms, true);
 102         invalidate(m_visible_region);  // invalidate new regions
 103 }
 104
 105 void eSubtitleWidget::clearPage()
 106 {
 107         eDebug("subtitle timeout... hide");
 108         m_page_ok = 0;
 109         m_dvb_page_ok = 0;
 110         m_pango_page_ok = 0;
 111         invalidate(m_visible_region);
 112         m_visible_region.rects.clear();
 113 }
 114
 115 void eSubtitleWidget::setPixmap(ePtr<gPixmap> &pixmap, gRegion changed, eRect pixmap_dest)
 116 {
 117         m_pixmap = pixmap;
 118         m_pixmap_dest = pixmap_dest;
 119
 120         changed.scale(size().width(), pixmap->size().width(), size().height(), pixmap->size().height());
 121
 122         invalidate(changed);
 123 }
 124
 125 int eSubtitleWidget::event(int event, void *data, void *data2)
 126 {
 127         switch (event)
 128         {
 129         case evtPaint:
 130         {
 131                 ePtr<eWindowStyle> style;
 132                 gPainter &painter = *(gPainter*)data2;
 133
 134                 getStyle(style);
 135                 eWidget::event(event, data, data2);
 136
 137                 if (m_pixmap)
 138                 {
 139                         eRect r = m_pixmap_dest;
 140                         r.scale(size().width(), 720, size().height(), 576);
 141                         painter.blitScale(m_pixmap, r);
 142                 } else if (m_page_ok)
 143                 {
 144                         int elements = m_page.m_elements.size();
 145                         painter.setFont(subtitleStyles[Subtitle_TTX].font);
 146                         for (int i=0; i<elements; ++i)
 147                         {
 148                                 eDVBTeletextSubtitlePageElement &element = m_page.m_elements[i];
 149                                 eRect &area = element.m_area;
 150                                 eRect shadow = area;
 151                                 shadow.moveBy(subtitleStyles[Subtitle_TTX].shadow_offset);
 152                                 painter.setForegroundColor(subtitleStyles[Subtitle_TTX].shadow_color);
 153                                 painter.renderText(shadow, element.m_text, gPainter::RT_WRAP|gPainter::RT_VALIGN_CENTER|gPainter::RT_HALIGN_CENTER);
 154                                 if ( !subtitleStyles[Subtitle_TTX].have_foreground_color )
 155                                         painter.setForegroundColor(element.m_color);
 156                                 else
 157                                         painter.setForegroundColor(subtitleStyles[Subtitle_TTX].foreground_color);
 158                                 painter.renderText(area, element.m_text, gPainter::RT_WRAP|gPainter::RT_VALIGN_CENTER|gPainter::RT_HALIGN_CENTER);
 159                         }
 160                 }
 161                 else if (m_pango_page_ok)
 162                 {
 163                         int elements = m_pango_page.m_elements.size();
 164                         subfont_t face;
 165
 166                         for (int i=0; i<elements; ++i)
 167                         {
 168                                 face = Subtitle_Regular;
 169                                 ePangoSubtitlePageElement &element = m_pango_page.m_elements[i];
 170                                 std::string text = element.m_pango_line;
 171                                 std::string::size_type loc = text.find("<", 0 );
 172                                 if ( loc != std::string::npos )
 173                                 {
 174                                         switch (char(text.at(1)))
 175                                         {
 176                                         case 'i':
 177                                                 face = Subtitle_Italic;
 178                                                 break;
 179                                         case 'b':
 180                                                 face = Subtitle_Bold;
 181                                                 break;
 182                                         }
 183                                         text = text.substr(3, text.length()-7);
 184                                 }
 185                                 text = replace_all(text, "&apos;", "'");
 186                                 text = replace_all(text, "&quot;", "\"");
 187                                 text = replace_all(text, "&amp;", "&");
 188                                 painter.setFont(subtitleStyles[face].font);
 189                                 eRect &area = element.m_area;
 190                                 eRect shadow = area;
 191                                 shadow.moveBy(subtitleStyles[face].shadow_offset);
 192                                 painter.setForegroundColor(subtitleStyles[face].shadow_color);
 193                                 painter.renderText(shadow, text, gPainter::RT_WRAP|gPainter::RT_VALIGN_CENTER|gPainter::RT_HALIGN_CENTER);
 194                                 if ( !subtitleStyles[face].have_foreground_color && element.m_have_color )
 195                                         painter.setForegroundColor(element.m_color);
 196                                 else
 197                                         painter.setForegroundColor(subtitleStyles[face].foreground_color);
 198                                 painter.renderText(area, text, gPainter::RT_WRAP|gPainter::RT_VALIGN_CENTER|gPainter::RT_HALIGN_CENTER);
 199                         }
 200                 }
 201                 else if (m_dvb_page_ok)
 202                 {
 203                         for (std::list<eDVBSubtitleRegion>::iterator it(m_dvb_page.m_regions.begin()); it != m_dvb_page.m_regions.end(); ++it)
 204                         {
 205                                         /* dvb subtitles are living in their 720x576 cage... i think. check this for HD. */
 206                                 eRect r = eRect(it->m_position, it->m_pixmap->size());
 207                                 r.scale(size().width(), 720, size().height(), 576);
 208                                 painter.blitScale(it->m_pixmap, r);
 209                         }
 210                 }
 211                 return 0;
 212         }
 213         default:
 214                 return eWidget::event(event, data, data2);
 215         }
 216 }
 217
 218 void eSubtitleWidget::setFontStyle(subfont_t face, gFont *font, int haveColor, const gRGB &col, const gRGB &shadowCol, const ePoint &shadowOffset)
 219 {
 220         subtitleStyles[face].font = font;
 221         subtitleStyles[face].have_foreground_color = haveColor;
 222         subtitleStyles[face].foreground_color = col;
 223         subtitleStyles[face].shadow_color = shadowCol;
 224         subtitleStyles[face].shadow_offset = shadowOffset;
 225 }
 226