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fixes some divide by zero exception while drawing

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This commit is contained in:
Eyck Jentzsch
2023-02-23 21:10:57 +01:00
parent c8e587c1ea
commit ceaf52bfa1
2 changed files with 5 additions and 10 deletions
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5
plugins/com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/ui/swt/internal/RulerPainter.java
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@ -56,8 +56,9 @@ public class RulerPainter implements IPainter {
int baselineY=waveCanvas.rulerHeight - 1;
int bottom=waveCanvas.rulerHeight - 2;
long safe_scale_factor = scaleFactor!=0?scaleFactor:1;
long startTickTime = startTime+rulerTickMinor-(startTime % rulerTickMinor);
long majorTickDist = rulerTickMajor/scaleFactor;
long majorTickDist = rulerTickMajor/safe_scale_factor;
gc.setBackground(waveCanvas.getDisplay().getSystemColor(SWT.COLOR_WIDGET_BACKGROUND));
gc.fillRectangle(new Rectangle(area.x, area.y, area.width, waveCanvas.rulerHeight));
@ -75,7 +76,7 @@ public class RulerPainter implements IPainter {
boolean drawEvery = majorTickDist>maxTextLength;
boolean drawText=true;
for (long tickTime = startTickTime; tickTime < endTime; tickTime+= rulerTickMinor) {
int x0Pos = (int) (tickTime/scaleFactor) + proj.getTranslation().x;
int x0Pos = (int) (tickTime/safe_scale_factor) + proj.getTranslation().x;
if ((tickTime % rulerTickMajor) == 0) {
if(drawEvery || drawText)
gc.drawText(waveCanvas.timeToString(tickTime), x0Pos, area.y+textY);