Impala Documentation

virtual void Impala::Application::VideoExcel::TableOverviewWindow::DisplayFunc ( ) [inline, virtual]

Definition at line 110 of file TableOverviewWindow.h.

References OglGui::Window::DisplayFunc(), Impala::Application::VideoExcel::TableDataSource::GetFilteredRows(), Impala::Application::VideoExcel::TableDataSource::GetMark(), Impala::Application::VideoExcel::TableDataSource::GetNumberOfRows(), Impala::Application::VideoExcel::TableDataSource::GetStartRow(), OglGui::OglWindow::H(), MarkToColor(), mDrawHeight, mDrawOffset, mPixelCacheSynced, mSelPixelCache, mSource, RowToPixel(), UpdatePixelCache(), and OglGui::OglWindow::W().

00111     {
00112         if (mSource->GetFilteredRows() == 0)
00113         {
00114             Window::DisplayFunc();
00115             return;
00116         }
00117 
00118         OGC     myOGC;
00119         OGCSave(&myOGC);
00120         SetStipple((short)oglDot);
00121         SetSolidLineColor(0xff777777);
00122 
00123         mDrawHeight = H() - 32;
00124         mDrawOffset = 16;
00125         // mark marked areas:
00126         if (mDrawHeight < mSource->GetFilteredRows())
00127         {
00128             // more rows than pixels: use cached version of sampled rows
00129             if (!mPixelCacheSynced)
00130                 UpdatePixelCache(mDrawHeight);
00131 
00132             for (int i=0; i<mDrawHeight; i++)
00133             {
00134                 unsigned long avgcol = mSelPixelCache[i];
00135                 if (avgcol > 0)
00136                 {
00137                     SetSolidFillColor(avgcol);
00138                     FillRectangle(0, mDrawOffset+mDrawHeight-i, W(), 1);
00139                 }
00140             }
00141         }
00142         else
00143         {
00144             // less rows than pixels, draw blocks
00145             for (int y = 0; y < mSource->GetFilteredRows(); y++)
00146             {
00147                 int mark = mSource->GetMark(y);
00148                 if (mark)
00149                 {
00150                     SetSolidFillColor(MarkToColor(mark));
00151                     int l = RowToPixel(1);
00152                     int s = RowToPixel(y) + l;
00153                     FillRectangle(0, mDrawOffset+mDrawHeight-s, W(), l+1);
00154                 }
00155             }
00156         }
00157 
00158         // mark current visible area:
00159         SetSolidFillColor(0xffffffff);
00160         int l = RowToPixel(mSource->GetNumberOfRows());
00161         int s = RowToPixel(mSource->GetStartRow()) + l;
00162         FillRectangle(0,mDrawOffset+mDrawHeight-s, 8,l);
00163         FillRectangle(W()-8,mDrawOffset+mDrawHeight-s, 8,l);
00164 
00165         OGCRestore(&myOGC);
00166         Window::DisplayFunc();
00167     }

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