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                 eDebug("disp width %d, disp height %d", p.m_display_size.width(), p.m_display_size.height());
  66                 eRect r = eRect(it->m_position, it->m_pixmap->size());
  67                 r.scale(size().width(), p.m_display_size.width(), size().height(), p.m_display_size.height());
  68                 m_visible_region.rects.push_back(r);
  69         }
  70         m_dvb_page_ok = 1;
  71         m_hide_subtitles_timer->start(7500, true);
  72         invalidate(m_visible_region);  // invalidate new regions
  73 }
  74
  75 void eSubtitleWidget::setPage(const ePangoSubtitlePage &p)
  76 {
  77         m_pango_page = p;
  78         m_pango_page_ok = 1;
  79         invalidate(m_visible_region);  // invalidate old visible regions
  80         m_visible_region.rects.clear();
  81
  82         int elements = m_pango_page.m_elements.size();
  83         if (elements)
  84         {
  85                 int startY = elements > 1
  86                         ? size().height() / 2
  87                         : size().height() / 3 * 2;
  88                 int width = size().width() - startX * 2;
  89                 int height = size().height() - startY;
  90                 int size_per_element = height / (elements ? elements : 1);
  91                 for (int i=0; i<elements; ++i)
  92                 {
  93                         eRect &area = m_pango_page.m_elements[i].m_area;
  94                         area.setLeft(startX);
  95                         area.setTop(size_per_element * i + startY);
  96                         area.setWidth(width);
  97                         area.setHeight(size_per_element);
  98                         m_visible_region.rects.push_back(area);
  99                 }
 100         }
 101         int timeout_ms = m_pango_page.m_timeout;
 102         m_hide_subtitles_timer->start(timeout_ms, true);
 103         invalidate(m_visible_region);  // invalidate new regions
 104 }
 105
 106 void eSubtitleWidget::clearPage()
 107 {
 108         eDebug("subtitle timeout... hide");
 109         m_page_ok = 0;
 110         m_dvb_page_ok = 0;
 111         m_pango_page_ok = 0;
 112         invalidate(m_visible_region);
 113         m_visible_region.rects.clear();
 114 }
 115
 116 void eSubtitleWidget::setPixmap(ePtr<gPixmap> &pixmap, gRegion changed, eRect pixmap_dest)
 117 {
 118         m_pixmap = pixmap;
 119         m_pixmap_dest = pixmap_dest; /* this is in a virtual 720x576 cage */
 120
 121                 /* incoming "changed" regions are relative to the physical pixmap area, so they have to be scaled to the virtual pixmap area, then to the screen */
 122         changed.scale(m_pixmap_dest.width(), 720, m_pixmap_dest.height(), 576);
 123         changed.moveBy(ePoint(m_pixmap_dest.x(), m_pixmap_dest.y()));
 124
 125         if (pixmap->size().width() && pixmap->size().height())
 126                 changed.scale(size().width(), pixmap->size().width(), size().height(), pixmap->size().height());
 127
 128         invalidate(changed);
 129 }
 130
 131 int eSubtitleWidget::event(int event, void *data, void *data2)
 132 {
 133         switch (event)
 134         {
 135         case evtPaint:
 136         {
 137                 ePtr<eWindowStyle> style;
 138                 gPainter &painter = *(gPainter*)data2;
 139
 140                 getStyle(style);
 141                 eWidget::event(event, data, data2);
 142
 143                 if (m_pixmap)
 144                 {
 145                         eRect r = m_pixmap_dest;
 146                         r.scale(size().width(), 720, size().height(), 576);
 147                         painter.blitScale(m_pixmap, r);
 148                 } else if (m_page_ok)
 149                 {
 150                         int elements = m_page.m_elements.size();
 151                         painter.setFont(subtitleStyles[Subtitle_TTX].font);
 152                         for (int i=0; i<elements; ++i)
 153                         {
 154                                 eDVBTeletextSubtitlePageElement &element = m_page.m_elements[i];
 155                                 eRect &area = element.m_area;
 156                                 eRect shadow = area;
 157                                 shadow.moveBy(subtitleStyles[Subtitle_TTX].shadow_offset);
 158                                 painter.setForegroundColor(subtitleStyles[Subtitle_TTX].shadow_color);
 159                                 painter.renderText(shadow, element.m_text, gPainter::RT_WRAP|gPainter::RT_VALIGN_CENTER|gPainter::RT_HALIGN_CENTER);
 160                                 if ( !subtitleStyles[Subtitle_TTX].have_foreground_color )
 161                                         painter.setForegroundColor(element.m_color);
 162                                 else
 163                                         painter.setForegroundColor(subtitleStyles[Subtitle_TTX].foreground_color);
 164                                 painter.renderText(area, element.m_text, gPainter::RT_WRAP|gPainter::RT_VALIGN_CENTER|gPainter::RT_HALIGN_CENTER);
 165                         }
 166                 }
 167                 else if (m_pango_page_ok)
 168                 {
 169                         int elements = m_pango_page.m_elements.size();
 170                         subfont_t face;
 171
 172                         for (int i=0; i<elements; ++i)
 173                         {
 174                                 face = Subtitle_Regular;
 175                                 ePangoSubtitlePageElement &element = m_pango_page.m_elements[i];
 176                                 std::string text = element.m_pango_line;
 177                                 std::string::size_type loc = text.find("<", 0 );
 178                                 if ( loc != std::string::npos )
 179                                 {
 180                                         switch (char(text.at(1)))
 181                                         {
 182                                         case 'i':
 183                                                 face = Subtitle_Italic;
 184                                                 break;
 185                                         case 'b':
 186                                                 face = Subtitle_Bold;
 187                                                 break;
 188                                         }
 189                                         text = text.substr(3, text.length()-7);
 190                                 }
 191                                 text = replace_all(text, "&apos;", "'");
 192                                 text = replace_all(text, "&quot;", "\"");
 193                                 text = replace_all(text, "&amp;", "&");
 194                                 painter.setFont(subtitleStyles[face].font);
 195                                 eRect &area = element.m_area;
 196                                 eRect shadow = area;
 197                                 shadow.moveBy(subtitleStyles[face].shadow_offset);
 198                                 painter.setForegroundColor(subtitleStyles[face].shadow_color);
 199                                 painter.renderText(shadow, text, gPainter::RT_WRAP|gPainter::RT_VALIGN_CENTER|gPainter::RT_HALIGN_CENTER);
 200                                 if ( !subtitleStyles[face].have_foreground_color && element.m_have_color )
 201                                         painter.setForegroundColor(element.m_color);
 202                                 else
 203                                         painter.setForegroundColor(subtitleStyles[face].foreground_color);
 204                                 painter.renderText(area, text, gPainter::RT_WRAP|gPainter::RT_VALIGN_CENTER|gPainter::RT_HALIGN_CENTER);
 205                         }
 206                 }
 207                 else if (m_dvb_page_ok)
 208                 {
 209                         for (std::list<eDVBSubtitleRegion>::iterator it(m_dvb_page.m_regions.begin()); it != m_dvb_page.m_regions.end(); ++it)
 210                         {
 211                                 eRect r = eRect(it->m_position, it->m_pixmap->size());
 212                                 r.scale(size().width(), m_dvb_page.m_display_size.width(), size().height(),  m_dvb_page.m_display_size.height());
 213                                 painter.blitScale(it->m_pixmap, r);
 214                         }
 215                 }
 216                 return 0;
 217         }
 218         default:
 219                 return eWidget::event(event, data, data2);
 220         }
 221 }
 222
 223 void eSubtitleWidget::setFontStyle(subfont_t face, gFont *font, int haveColor, const gRGB &col, const gRGB &shadowCol, const ePoint &shadowOffset)
 224 {
 225         subtitleStyles[face].font = font;
 226         subtitleStyles[face].have_foreground_color = haveColor;
 227         subtitleStyles[face].foreground_color = col;
 228         subtitleStyles[face].shadow_color = shadowCol;
 229         subtitleStyles[face].shadow_offset = shadowOffset;
 230 }
 231