75 lines
2.6 KiB
Java
75 lines
2.6 KiB
Java
/*******************************************************************************
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* Copyright (c) 2015 MINRES Technologies GmbH and others.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* MINRES Technologies GmbH - initial API and implementation
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*******************************************************************************/
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package com.minres.scviewer.database.swt.internal;
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import java.util.Map.Entry;
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import java.util.TreeMap;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.graphics.Rectangle;
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import com.minres.scviewer.database.ui.WaveformColors;
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public class TrackAreaPainter implements IPainter {
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/**
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*
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*/
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private final WaveformCanvas waveCanvas;
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TreeMap<Integer, IWaveformPainter> trackVerticalOffset;
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/**
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* @param txDisplay
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*/
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public TrackAreaPainter(WaveformCanvas waveCanvas) {
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this.waveCanvas = waveCanvas;
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this.trackVerticalOffset= new TreeMap<>();
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}
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public void paintArea(Projection proj, Rectangle a) {
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Rectangle area = proj.unProject(new Rectangle(a.x, a.y+waveCanvas.rulerHeight, a.width, a.height-waveCanvas.rulerHeight));
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proj.setBackground(this.waveCanvas.colors[WaveformColors.TRACK_BG_EVEN.ordinal()]);
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proj.setFillRule(SWT.FILL_EVEN_ODD);
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proj.fillRectangle(area);
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if(trackVerticalOffset.size()>0){
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Integer firstKey=trackVerticalOffset.floorKey(area.y);
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if(firstKey==null) firstKey=trackVerticalOffset.firstKey();
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Integer lastKey = trackVerticalOffset.floorKey(area.y+area.height);
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Rectangle subArea = new Rectangle(area.x, 0, area.width, 0);
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if(lastKey==firstKey){
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subArea.y=firstKey;
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IWaveformPainter p = trackVerticalOffset.get(firstKey);
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subArea.height=p.getHeight();
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p.paintArea(proj, subArea);
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}else{
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for(Entry<Integer, IWaveformPainter> entry : trackVerticalOffset.subMap(firstKey, true, lastKey, true).entrySet()){
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subArea.y=entry.getKey();
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subArea.height=entry.getValue().getHeight();
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entry.getValue().paintArea(proj, subArea);
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}
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}
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}
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}
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public TreeMap<Integer, IWaveformPainter> getTrackVerticalOffset() {
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return trackVerticalOffset;
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}
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public void addTrackPainter(IWaveformPainter trackPainter){
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trackVerticalOffset.put(trackPainter.getVerticalOffset()+waveCanvas.rulerHeight, trackPainter);
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}
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public int getHeight(){
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if(trackVerticalOffset.size()==0) return 1;
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return trackVerticalOffset.lastKey() + trackVerticalOffset.lastEntry().getValue().getHeight();
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}
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} |