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Fixed #11 - No more display problems in waveforms when zooming in and

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This commit is contained in:
Brita Keller
2019-03-17 20:03:22 +01:00
parent 6b4a9c1e14
commit 73e952faea
7 changed files with 132 additions and 70 deletions
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30
com.minres.scviewer.database.ui.swt/src/com/minres/scviewer/database/swt/internal/RulerPainter.java
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@ -32,6 +32,7 @@ public class RulerPainter implements IPainter {
@Override
public void paintArea(GC gc, Rectangle area) {
Color headerFgColor=waveCanvas.getDisplay().getSystemColor(SWT.COLOR_WIDGET_FOREGROUND);
if(headerFgColor.isDisposed())
headerFgColor=SWTResourceManager.getColor(0,0,0);
@ -41,9 +42,11 @@ public class RulerPainter implements IPainter {
String unit=waveCanvas.getUnitStr();
int unitMultiplier=waveCanvas.getUnitMultiplier();
long scaleFactor=waveCanvas.getScaleFactor();
// long zoomLevel = waveCanvas.getZoomLevel();
long start=area.x*scaleFactor;
long end=start+area.width*scaleFactor;
long startPos=area.x*scaleFactor;
long startVal=startPos + waveCanvas.getXOffset()*scaleFactor;
long endPos=startPos+area.width*scaleFactor;
long endVal=startVal+area.width*scaleFactor;
long rulerTickMinor = rulerTickMinorC*scaleFactor;
long rulerTickMajor = rulerTickMajorC*scaleFactor;
@ -54,9 +57,9 @@ public class RulerPainter implements IPainter {
int baselineY=waveCanvas.rulerHeight - 1;
int bottom=waveCanvas.rulerHeight - 2;
long startMinorIncr = start;
long modulo = start % rulerTickMinor;
startMinorIncr+=rulerTickMinor-modulo;
long modulo = startVal % rulerTickMinor;
long startMinorIncrPos = startPos+rulerTickMinor-modulo;
long startMinorIncrVal = startVal+rulerTickMinor-modulo;
gc.setBackground(waveCanvas.getDisplay().getSystemColor(SWT.COLOR_WIDGET_BACKGROUND));
gc.fillRectangle(new Rectangle(area.x, area.y, area.width, waveCanvas.rulerHeight));
@ -65,15 +68,18 @@ public class RulerPainter implements IPainter {
gc.setForeground(headerFgColor);
gc.drawLine(area.x, area.y+bottom, area.x+area.width, area.y+bottom);
for (long tick = startMinorIncr; tick < end; tick += rulerTickMinor) {
int x0 = (int) (tick/scaleFactor);
int x0_max = 0;
for (long pos = startMinorIncrPos, tick = startMinorIncrVal; pos < endPos; pos+= rulerTickMinor, tick += rulerTickMinor) {
int x0_pos = (int) (pos/scaleFactor);
long x0_val = tick/scaleFactor;
x0_max = x0_pos;
if ((tick % rulerTickMajor) == 0) {
gc.drawText(df.format(tick/scaleFactor*unitMultiplier)+unit, x0, area.y+textY);
gc.drawLine(x0, area.y+majorTickY, x0,area.y+ bottom);
gc.drawText(df.format(x0_val*unitMultiplier)+unit, x0_pos, area.y+textY);
gc.drawLine(x0_pos, area.y+majorTickY, x0_pos,area.y+ bottom);
} else {
gc.drawLine(x0, area.y+minorTickY, x0, area.y+bottom);
gc.drawLine(x0_pos, area.y+minorTickY, x0_pos, area.y+bottom);
}
}
}
}