SCViewer/com.minres.scviewer.databas.../src/com/minres/scviewer/database/swt/internal/CursorPainter.java

75 lines
2.2 KiB
Java

/*******************************************************************************
* Copyright (c) 2015 MINRES Technologies GmbH and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* MINRES Technologies GmbH - initial API and implementation
*******************************************************************************/
package com.minres.scviewer.database.swt.internal;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Rectangle;
public class CursorPainter implements IPainter {
/**
*
*/
private final WaveformCanvas waveCanvas;
private long time;
private boolean isDragging;
public final int id;
/**
* @param i
* @param txDisplay
*/
public CursorPainter(WaveformCanvas txDisplay, long time, int id) {
this.waveCanvas = txDisplay;
this.time=time;
this.id=id;
}
public long getTime() {
return time;
}
public void setTime(long time) {
this.time = time;
}
public boolean isDragging() {
return isDragging;
}
public void setDragging(boolean isDragging) {
this.isDragging = isDragging;
}
public void paintArea(GC gc, Rectangle area) {
if(this.waveCanvas.streams.size()>0){
long scaleFactor=waveCanvas.getScaleFactor();
int x = (int) (time/scaleFactor);
int top = id<0?area.y:area.y+15;
Color drawColor=waveCanvas.colors[id<0?WaveformCanvas.Colors.CURSOR.ordinal():WaveformCanvas.Colors.MARKER.ordinal()];
Color dragColor = waveCanvas.colors[WaveformCanvas.Colors.CURSOR_DRAG.ordinal()];
Color textColor=waveCanvas.colors[id<0?WaveformCanvas.Colors.CURSOR_TEXT.ordinal():WaveformCanvas.Colors.MARKER_TEXT.ordinal()];
if(x>=area.x && x<=(area.x+area.width)){
gc.setForeground(isDragging?dragColor:drawColor);
gc.drawLine(x, top, x, area.y+area.height);
gc.setBackground(drawColor);
gc.setForeground(textColor);
Double dTime=new Double(time);
gc.drawText((dTime/waveCanvas.getScaleFactorPow10())+waveCanvas.getUnitStr(), x+1, top);
}
}
}
}