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Patch major font rendering performance hit while zoomed

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This commit is contained in:
Charles J. Cliffe 2016-03-14 19:27:34 -04:00
parent b3b933c8dd
commit cfdbcf9bc3
1 changed files with 8 additions and 1 deletions
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9
src/panel/SpectrumPanel.cpp
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@ -222,8 +222,15 @@ void SpectrumPanel::drawPanelContents() {
fontEnumSize = GLFont::GLFONT_SIZE16; fontEnumSize = GLFont::GLFONT_SIZE16;
hPos = 1.0 - (18.0 / viewHeight); hPos = 1.0 - (18.0 / viewHeight);
} }
for (double m = -1.0 + mhzStart, mMax = 1.0 + ((mhzStart>0)?mhzStart:-mhzStart); m <= mMax; m += mhzStep) { for (double m = -1.0 + mhzStart, mMax = 1.0 + ((mhzStart>0)?mhzStart:-mhzStart); m <= mMax; m += mhzStep) {
if (m < -1.0) {
currentMhz += mhzVisualStep;
continue;
}
if (m > 1.0) {
break;
}
label << std::fixed << currentMhz; label << std::fixed << currentMhz;
double fractpart, intpart; double fractpart, intpart;