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         eDebug("setPage");
  56         m_dvb_page = p;
  57         invalidate(m_visible_region);  // invalidate old visible regions
  58         m_visible_region.rects.clear();
  59         for (std::list<eDVBSubtitleRegion>::iterator it(m_dvb_page.m_regions.begin()); it != m_dvb_page.m_regions.end(); ++it)
  60         {
  61                 eDebug("add %d %d %d %d", it->m_position.x(), it->m_position.y(), it->m_pixmap->size().width(), it->m_pixmap->size().height());
  62                 m_visible_region.rects.push_back(eRect(it->m_position, it->m_pixmap->size()));
  63         }
  64         m_dvb_page_ok = 1;
  65         m_hide_subtitles_timer.start(7500, true);
  66         invalidate(m_visible_region);  // invalidate new regions
  67 }
  68
  69 void eSubtitleWidget::setPage(const ePangoSubtitlePage &p)
  70 {
  71         m_pango_page = p;
  72         m_pango_page_ok = 1;
  73         invalidate(m_visible_region);  // invalidate old visible regions
  74         m_visible_region.rects.clear();
  75
  76         int elements = m_pango_page.m_elements.size();
  77         if (elements)
  78         {
  79                 int startY = elements > 1
  80                         ? size().height() / 2
  81                         : size().height() / 3 * 2;
  82                 int width = size().width() - startX * 2;
  83                 int height = size().height() - startY;
  84                 int size_per_element = height / (elements ? elements : 1);
  85                 for (int i=0; i<elements; ++i)
  86                 {
  87                         eRect &area = m_pango_page.m_elements[i].m_area;
  88                         area.setLeft(startX);
  89                         area.setTop(size_per_element * i + startY);
  90                         area.setWidth(width);
  91                         area.setHeight(size_per_element);
  92                         m_visible_region.rects.push_back(area);
  93                 }
  94         }
  95         int timeout_ms = m_pango_page.m_timeout;
  96         m_hide_subtitles_timer.start(timeout_ms, true);
  97         invalidate(m_visible_region);  // invalidate new regions
  98 }
  99
 100 void eSubtitleWidget::clearPage()
 101 {
 102         eDebug("subtitle timeout... hide");
 103         m_page_ok = 0;
 104         m_dvb_page_ok = 0;
 105         m_pango_page_ok = 0;
 106         invalidate(m_visible_region);
 107         m_visible_region.rects.clear();
 108 }
 109
 110 void eSubtitleWidget::setPixmap(ePtr<gPixmap> &pixmap, gRegion changed)
 111 {
 112         m_pixmap = pixmap;
 113         invalidate(changed);
 114 }
 115
 116 std::string eSubtitleWidget::replace_all(const std::string &in, const std::string &entity, const std::string &symbol)
 117 {
 118         std::string out = in;
 119         std::string::size_type loc = 0;
 120         while (( loc = out.find(entity, loc)) != std::string::npos )
 121         out.replace(loc, entity.length(), symbol);
 122         return out;
 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                         painter.blit(m_pixmap, ePoint(0,0));
 139                 else if (m_page_ok)
 140                 {
 141                         int elements = m_page.m_elements.size();
 142                         ePtr<gFont> font = new gFont("Regular", 38);
 143                         painter.setFont(font);
 144                         for (int i=0; i<elements; ++i)
 145                         {
 146                                 eDVBTeletextSubtitlePageElement &element = m_page.m_elements[i];
 147                                 eRect &area = element.m_area;
 148                                 eRect shadow = area;
 149                                 shadow.moveBy(3,3);
 150                                 painter.setForegroundColor(gRGB(0,0,0));
 151                                 painter.renderText(shadow, element.m_text, gPainter::RT_WRAP|gPainter::RT_VALIGN_CENTER|gPainter::RT_HALIGN_CENTER);
 152                                 painter.setForegroundColor(element.m_color);
 153                                 painter.renderText(area, element.m_text, gPainter::RT_WRAP|gPainter::RT_VALIGN_CENTER|gPainter::RT_HALIGN_CENTER);
 154                         }
 155                 }
 156                 else if (m_pango_page_ok)
 157                 {
 158                         int elements = m_pango_page.m_elements.size();
 159                         ePtr<gFont> font = new gFont("Regular", 38);
 160                         for (int i=0; i<elements; ++i)
 161                         {
 162                                 ePangoSubtitlePageElement &element = m_pango_page.m_elements[i];
 163                                 std::string text = element.m_pango_line;
 164                                 std::string::size_type loc = text.find("<", 0 );
 165                                 if ( loc != std::string::npos )
 166                                 {
 167                                         switch (char(text.at(1)))
 168                                         {
 169                                         case 'i':
 170                                                 eDebug("found italic");
 171                                                 font = new gFont("LCD", 40);
 172                                                 break;
 173                                         case 'b':
 174                                                 eDebug("found bold");
 175                                                 font = new gFont("Replacement", 40);
 176                                                 break;
 177                                         default:
 178                                                 break;
 179                                         }
 180                                         text = text.substr(3, text.length()-7);
 181                                 }
 182                                 text = replace_all(text, "&apos;", "'");
 183                                 text = replace_all(text, "&quot;", "\"");
 184                                 text = replace_all(text, "&amp;", "&");
 185                                 painter.setFont(font);
 186                                 eRect &area = element.m_area;
 187                                 eRect shadow = area;
 188                                 shadow.moveBy(3,3);
 189                                 painter.setForegroundColor(gRGB(0,0,0));
 190                                 painter.renderText(shadow, text, gPainter::RT_WRAP|gPainter::RT_VALIGN_CENTER|gPainter::RT_HALIGN_CENTER);
 191                                 painter.setForegroundColor(element.m_color);
 192                                 painter.renderText(area, text, gPainter::RT_WRAP|gPainter::RT_VALIGN_CENTER|gPainter::RT_HALIGN_CENTER);
 193                         }
 194                 }
 195                 else if (m_dvb_page_ok)
 196                 {
 197                         for (std::list<eDVBSubtitleRegion>::iterator it(m_dvb_page.m_regions.begin()); it != m_dvb_page.m_regions.end(); ++it)
 198                                 painter.blit(it->m_pixmap, it->m_position);
 199                 }
 200                 return 0;
 201         }
 202         default:
 203                 return eWidget::event(event, data, data2);
 204         }
 205 }