C++ cOsd类代码示例

void cSkinCursesDisplayMenu::SetMessage(eMessageType Type, const char *Text)
{
  if (Text)
     osd->DrawText(0, ScOsdHeight - 2, Text, clrMessage[2 * Type], clrMessage[2 * Type + 1], &Font, ScOsdWidth, 0, taCenter);
  else
     osd->DrawRectangle(0, ScOsdHeight - 2, ScOsdWidth - 1, ScOsdHeight - 2, clrBackground);
}

eOSState cLineGame::ProcessKey(eKeys Key)
{
  eOSState state = cOsdObject::ProcessKey(Key);
  if (state == osUnknown) {
     const int d = 4;
     switch (Key & ~k_Repeat) {
       case kUp:     y = max(0, y - d); break;
       case kDown:   y = min(osd->Height() - d, y + d); break;
       case kLeft:   x = max(0, x - d); break;
       case kRight:  x = min(osd->Width() - d, x + d); break;
       case kRed:    color = clrRed; break;
       case kGreen:  color = clrGreen; break;
       case kYellow: color = clrYellow; break;
       case kBlue:   color = clrBlue; break;
       case k1:      DrawEllipses(osd);
                     return osContinue;
       case k2:      DrawSlopes(osd);
                     return osContinue;
       case kBack:
       case kOk:     return osEnd;
       default: return state;
       }
     osd->DrawRectangle(x, y, x + d - 1, y + d - 1, color);
     osd->Flush();
     state = osContinue;
     }
  return state;
}

void cSkinCursesDisplayChannel::Flush(void)
{
  if (!message) {
     cString date = DayDateTime();
     osd->DrawText(ScOsdWidth - Utf8StrLen(date), 0, date, clrWhite, clrBackground, &Font);
     }
  osd->Flush();
}

void cSkinCursesDisplayMenu::Flush(void)
{
  if (cVideoDiskUsage::HasChanged(lastDiskUsageState))
     DrawTitle();
  cString date = DayDateTime();
  osd->DrawText(ScOsdWidth - Utf8StrLen(date) - 2, 0, date, clrBlack, clrCyan, &Font);
  osd->Flush();
}

void cLineGame::Show(void)
{
  osd = cOsdProvider::NewOsd(100, 50, 50);
  if (osd) {
     tArea Area = { 0, 0, 99, 199,  4 };
     osd->SetAreas(&Area, 1);
     osd->DrawRectangle(0, 0, 99, 199, clrGray50);
     osd->Flush();
     }
}

void cTrueColorDemo::Show(void)
{
  osd = cOsdProvider::NewOsd(cOsd::OsdLeft(), cOsd::OsdTop());
  if (osd) {
     if (SetArea()) {
        osd->DrawRectangle(0, 0, osd->Width() - 1, osd->Height() - 1, clrGray50);
        osd->Flush();
        Start();
        }
     }
}

void cSkinCursesDisplayChannel::SetEvents(const cEvent *Present, const cEvent *Following)
{
  osd->DrawRectangle(0, 1, timeWidth - 1, 4, clrRed);
  osd->DrawRectangle(timeWidth, 1, ScOsdWidth - 1, 4, clrBackground);
  for (int i = 0; i < 2; i++) {
      const cEvent *e = !i ? Present : Following;
      if (e) {
         osd->DrawText(            0, 2 * i + 1, e->GetTimeString(), clrWhite, clrRed, &Font);
         osd->DrawText(timeWidth + 1, 2 * i + 1, e->Title(), clrCyan, clrBackground, &Font);
         osd->DrawText(timeWidth + 1, 2 * i + 2, e->ShortText(), clrYellow, clrBackground, &Font);
         }
      }
}

void cSkinCursesDisplayMenu::SetButtons(const char *Red, const char *Green, const char *Yellow, const char *Blue)
{
  int w = ScOsdWidth;
  int t0 = 0;
  int t1 = 0 + w / 4;
  int t2 = 0 + w / 2;
  int t3 = w - w / 4;
  int t4 = w;
  int y = ScOsdHeight - 1;
  osd->DrawText(t0, y, Red,    clrWhite, Red    ? clrRed    : clrBackground, &Font, t1 - t0, 0, taCenter);
  osd->DrawText(t1, y, Green,  clrBlack, Green  ? clrGreen  : clrBackground, &Font, t2 - t1, 0, taCenter);
  osd->DrawText(t2, y, Yellow, clrBlack, Yellow ? clrYellow : clrBackground, &Font, t3 - t2, 0, taCenter);
  osd->DrawText(t3, y, Blue,   clrWhite, Blue   ? clrBlue   : clrBackground, &Font, t4 - t3, 0, taCenter);
}

void cSkinCursesDisplayVolume::SetVolume(int Current, int Total, bool Mute)
{
  if (Mute) {
     osd->DrawRectangle(0, 0, ScOsdWidth - 1, 0, clrTransparent);
     osd->DrawText(0, 0, tr("Key$Mute"), clrGreen, clrBackground, &Font);
     }
  else {
     const char *Prompt = tr("Volume ");
     int l = Utf8StrLen(Prompt);
     int p = (ScOsdWidth - l) * Current / Total;
     osd->DrawText(0, 0, Prompt, clrGreen, clrBackground, &Font);
     osd->DrawRectangle(l, 0, l + p - 1, 0, clrGreen);
     osd->DrawRectangle(l + p, 0, ScOsdWidth - 1, 0, clrWhite);
     }
}

void cSkinCursesDisplayMenu::DrawScrollbar(int Total, int Offset, int Shown, int Top, int Height, bool CanScrollUp, bool CanScrollDown)
{
  if (Total > 0 && Total > Shown) {
     int yt = Top;
     int yb = yt + Height;
     int st = yt;
     int sb = yb;
     int th = max(int((sb - st) * double(Shown) / Total + 0.5), 1);
     int tt = min(int(st + (sb - st) * double(Offset) / Total + 0.5), sb - th);
     int tb = min(tt + th, sb);
     int xl = ScOsdWidth - 1;
     osd->DrawRectangle(xl, st, xl, sb - 1, clrWhite);
     osd->DrawRectangle(xl, tt, xl, tb - 1, clrCyan);
     }
}

void cSkinSTTNGDisplayChannel::Flush(void)
{
  if (withInfo) {
     if (!message) {
        const cFont *font = cFont::GetFont(fontSml);
        cString date = DayDateTime();
        int w = font->Width(date);
        osd->DrawText(x4 - w - 2, y7 - font->Height(date), date, Theme.Color(clrChannelDate), frameColor, font);
        cDevice *Device = cDevice::PrimaryDevice();
        const tTrackId *Track = Device->GetTrack(Device->GetCurrentAudioTrack());
        if (!Track && *lastTrackId.description || Track && strcmp(lastTrackId.description, Track->description)) {
           osd->DrawText(x3 + 2, y6, Track ? Track->description : "", Theme.Color(clrChannelName), frameColor, font, x4 - x3 - w - 4);
           strn0cpy(lastTrackId.description, Track ? Track->description : "", sizeof(lastTrackId.description));
           }
        }

     int seen = 0;
     if (present) {
        time_t t = time(NULL);
        if (t > present->StartTime())
           seen = min(y4 - y3 - 1, int((y4 - y3) * double(t - present->StartTime()) / present->Duration()));
        }
     if (seen != lastSeen) {
        osd->DrawRectangle(x1 + Gap, y3, x1 + Gap + ScrollWidth - 1, y4 - 1, Theme.Color(clrChannelTimebarRest));
        if (seen)
        osd->DrawRectangle(x1 + Gap, y3, x1 + Gap + ScrollWidth - 1, y3 + seen, Theme.Color(clrChannelTimebarSeen));
        lastSeen = seen;
        }
     }
  osd->Flush();
}

void cSkinSTTNGDisplayVolume::SetVolume(int Current, int Total, bool Mute)
{
  int xl = x3 + 5;
  int xr = x4 - 5;
  int yt = y0 + 3;
  int yb = y1 - 3;
  if (mute != Mute) {
     osd->DrawRectangle(x3, y0, x4 - 1, y1 - 1, frameColor);
     mute = Mute;
     }
  cBitmap bm(Mute ? mute_xpm : volume_xpm);
  osd->DrawBitmap(xl, y0 + (y1 - y0 - bm.Height()) / 2, bm, Theme.Color(clrVolumeSymbol), frameColor);
  if (!Mute) {
     xl += bm.Width() + 5;
     int w = (y1 - y0) / 3;
     int d = 3;
     int n = (xr - xl + d) / (w + d);
     int x = xr - n * (w + d);
     tColor Color = Theme.Color(clrVolumeBarLower);
     for (int i = 0; i < n; i++) {
         if (Total * i >= Current * n)
            Color = Theme.Color(clrVolumeBarUpper);
         osd->DrawRectangle(x, yt, x + w - 1, yb - 1, Color);
         x += w + d;
         }
     }
}

void cSkinClassicDisplayMenu::SetMessage(eMessageType Type, const char *Text)
{
  const cFont *font = cFont::GetFont(fontOsd);
  if (Text)
     osd->DrawText(x0, y3, Text, Theme.Color(clrMessageStatusFg + 2 * Type), Theme.Color(clrMessageStatusBg + 2 * Type), font, x3 - x0, 0, taCenter);
  else
     osd->DrawRectangle(x0, y3, x3 - 1, y4 - 1, Theme.Color(clrBackground));
}

void cSkinSTTNGDisplayMenu::SetTitle(const char *Title)
{
  const cFont *font = cFont::GetFont(fontOsd);
  const char *VDR = " VDR";
  int w = font->Width(VDR);
  osd->DrawText(x3 + 5, y0, Title, Theme.Color(clrMenuTitle), frameColor, font, x4 - w - x3 - 5);
  osd->DrawText(x4 - w, y0, VDR, frameColor, clrBlack, font);
}

void cSkinSTTNGDisplayReplay::SetMessage(eMessageType Type, const char *Text)
{
  const cFont *font = cFont::GetFont(fontSml);
  if (Text) {
     osd->SaveRegion(x2, y6, x4 - 1, y7 - 1);
     osd->DrawRectangle(x2, y6, x3 - 1, y7 - 1, Theme.Color(clrBackground));
     osd->DrawText(x3, y6, Text, Theme.Color(clrMessageStatusFg + 2 * Type), Theme.Color(clrMessageStatusBg + 2 * Type), font, x4 - x3, 0, taCenter);
     }
  else
     osd->RestoreRegion();
}