Mercurial > hg > svgui
diff layer/SpectrogramLayer.cpp @ 96:095916d7ed4d
* tuning tweaks
author | Chris Cannam |
---|---|
date | Tue, 09 May 2006 20:39:23 +0000 |
parents | 1b3996a86cfa |
children | a0e7edf9703a |
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--- a/layer/SpectrogramLayer.cpp Tue May 09 16:18:59 2006 +0000 +++ b/layer/SpectrogramLayer.cpp Tue May 09 20:39:23 2006 +0000 @@ -1897,58 +1897,53 @@ */ if (recreateWholePixmapCache) { - x0 = 0; x1 = v->width(); -// cache.validArea = QRect(x0, 0, x1, v->height()); } - if (1) {//!!! - - int paintBlockWidth = (500000 / zoomLevel); - if (paintBlockWidth < 20) paintBlockWidth = 20; - - if (cache.validArea.width() > 0) { - - int vx0 = 0, vx1 = 0; - vx0 = cache.validArea.x(); - vx1 = cache.validArea.x() + cache.validArea.width(); + int paintBlockWidth = (300000 / zoomLevel); + if (paintBlockWidth < 20) paintBlockWidth = 20; + + if (cache.validArea.width() > 0) { + + int vx0 = 0, vx1 = 0; + vx0 = cache.validArea.x(); + vx1 = cache.validArea.x() + cache.validArea.width(); + +#ifdef DEBUG_SPECTROGRAM_REPAINT + std::cerr << "x0 " << x0 << ", x1 " << x1 << ", vx0 " << vx0 << ", vx1 " << vx1 << ", paintBlockWidth " << paintBlockWidth << std::endl; +#endif + if (x0 < vx0) { + if (x0 + paintBlockWidth < vx0) { + x0 = vx0 - paintBlockWidth; + } else { + x0 = 0; + } + } else if (x0 > vx1) { + x0 = vx1; + } -#ifdef DEBUG_SPECTROGRAM_REPAINT - std::cerr << "x0 " << x0 << ", x1 " << x1 << ", vx0 " << vx0 << ", vx1 " << vx1 << ", paintBlockWidth " << paintBlockWidth << std::endl; -#endif - if (x0 < vx0) { - if (x0 + paintBlockWidth < vx0) { - x0 = vx0 - paintBlockWidth; - } else { - x0 = 0; - } - } else if (x0 > vx1) { - x0 = vx1; + if (x1 < vx0) { + x1 = vx0; + } else if (x1 > vx1) { + if (vx1 + paintBlockWidth < x1) { + x1 = vx1 + paintBlockWidth; + } else { + x1 = v->width(); } + } - if (x1 < vx0) { - x1 = vx0; - } else if (x1 > vx1) { - if (vx1 + paintBlockWidth < x1) { - x1 = vx1 + paintBlockWidth; - } else { - x1 = v->width(); - } - } + cache.validArea = QRect + (std::min(vx0, x0), cache.validArea.y(), + std::max(vx1 - std::min(vx0, x0), + x1 - std::min(vx0, x0)), + cache.validArea.height()); - cache.validArea = QRect - (std::min(vx0, x0), cache.validArea.y(), - std::max(vx1 - std::min(vx0, x0), - x1 - std::min(vx0, x0)), - cache.validArea.height()); - - } else { - if (x1 > x0 + paintBlockWidth) { - x1 = x0 + paintBlockWidth; - } - cache.validArea = QRect(x0, 0, x1 - x0, v->height()); + } else { + if (x1 > x0 + paintBlockWidth) { + x1 = x0 + paintBlockWidth; } + cache.validArea = QRect(x0, 0, x1 - x0, v->height()); } int w = x1 - x0;