151 lines
5.6 KiB
Java
151 lines
5.6 KiB
Java
/*******************************************************************************
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* Copyright (c) 2014, 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.Collection;
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import java.util.List;
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import java.util.Map.Entry;
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import java.util.NavigableMap;
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import java.util.TreeSet;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.graphics.GC;
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import org.eclipse.swt.graphics.Point;
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import org.eclipse.swt.graphics.Rectangle;
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import com.minres.scviewer.database.ITx;
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import com.minres.scviewer.database.ITxEvent;
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import com.minres.scviewer.database.ITxStream;
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public class StreamPainter implements IWaveformPainter{
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/**
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*
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*/
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private final WaveformCanvas waveCanvas;
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private ITxStream<? extends ITxEvent> stream;
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private int height, upper, txHeight;
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private int totalHeight;
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private boolean even;
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private TreeSet<ITx> seenTx;
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public StreamPainter(WaveformCanvas txDisplay, boolean even, int height, ITxStream<? extends ITxEvent> stream) {
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this.waveCanvas = txDisplay;
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this.stream=stream;
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this.height=height;
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this.upper=this.waveCanvas.getTrackHeight()/5;
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this.txHeight=3*this.waveCanvas.getTrackHeight()/5;
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this.totalHeight=stream.getMaxConcurrency()*this.waveCanvas.getTrackHeight();
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this.even=even;
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this.seenTx=new TreeSet<ITx>();
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}
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@SuppressWarnings("unchecked")
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public void paintArea(GC gc, Rectangle area) {
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if(stream.getEvents().size()==0) return;
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if(waveCanvas.currentWaveformSelection!=null && waveCanvas.currentWaveformSelection.getId()==stream.getId())
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gc.setBackground(this.waveCanvas.colors[WaveformCanvas.Colors.TRACK_BG_HIGHLITE.ordinal()]);
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else
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gc.setBackground(this.waveCanvas.colors[even?WaveformCanvas.Colors.TRACK_BG_EVEN.ordinal():WaveformCanvas.Colors.TRACK_BG_ODD.ordinal()]);
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gc.setFillRule(SWT.FILL_EVEN_ODD);
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gc.fillRectangle(area);
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Entry<Long, ?> firstTx=stream.getEvents().floorEntry(area.x*waveCanvas.getScaleFactor());
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Entry<Long, ?> lastTx=stream.getEvents().ceilingEntry((area.x+area.width)*waveCanvas.getScaleFactor());
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if(firstTx==null) firstTx = stream.getEvents().firstEntry();
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if(lastTx==null) lastTx=stream.getEvents().lastEntry();
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gc.setFillRule(SWT.FILL_EVEN_ODD);
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gc.setLineStyle(SWT.LINE_SOLID);
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gc.setLineWidth(1);
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gc.setForeground(this.waveCanvas.colors[WaveformCanvas.Colors.LINE.ordinal()]);
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for(int y1=area.y+this.waveCanvas.getTrackHeight()/2; y1<area.y+totalHeight; y1+=this.waveCanvas.getTrackHeight())
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gc.drawLine(area.x, y1, area.x+area.width, y1);
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if(firstTx==lastTx)
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for(ITxEvent x:(Collection<? extends ITxEvent>)firstTx.getValue())
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drawTx(gc, area, x.getTransaction());
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else{
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seenTx.clear();
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NavigableMap<Long,?> entries = stream.getEvents().subMap(firstTx.getKey(), true, lastTx.getKey(), true);
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for(Entry<Long, ?> tx: entries.entrySet())
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for(ITxEvent x:(Collection<? extends ITxEvent>)tx.getValue()){
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if(x.getType()==ITxEvent.Type.BEGIN)
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seenTx.add(x.getTransaction());
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if(x.getType()==ITxEvent.Type.END){
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drawTx(gc, area, x.getTransaction());
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seenTx.remove(x.getTransaction());
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}
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}
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for(ITx tx:seenTx){
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drawTx(gc, area, tx);
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}
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}
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}
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protected void drawTx(GC gc, Rectangle area, ITx tx) {
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if(waveCanvas.currentSelection!=null && waveCanvas.currentSelection.getId()==tx.getId()){
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gc.setForeground(this.waveCanvas.colors[WaveformCanvas.Colors.LINE_HIGHLITE.ordinal()]);
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gc.setBackground(this.waveCanvas.colors[WaveformCanvas.Colors.TX_BG_HIGHLITE.ordinal()]);
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}else {
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gc.setForeground(this.waveCanvas.colors[WaveformCanvas.Colors.LINE.ordinal()]);
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gc.setBackground(this.waveCanvas.colors[WaveformCanvas.Colors.TX_BG.ordinal()]);
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}
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int offset = tx.getConcurrencyIndex()*this.waveCanvas.getTrackHeight();
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Rectangle bb = new Rectangle(
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(int)(tx.getBeginTime()/this.waveCanvas.getScaleFactor()), area.y+offset+upper,
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(int)((tx.getEndTime()-tx.getBeginTime())/this.waveCanvas.getScaleFactor()), txHeight);
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if(bb.x+bb.width<area.x || bb.x>area.x+area.width) return;
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if(bb.width==0){
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gc.drawLine(bb.x, bb.y, bb.x, bb.y+bb.height);
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} else if(bb.width<10){
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gc.fillRectangle(bb);
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gc.drawRectangle(bb);
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} else {
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gc.fillRoundRectangle(bb.x, bb.y, bb.width, bb.height, 5, 5);
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gc.drawRoundRectangle(bb.x, bb.y, bb.width, bb.height, 5, 5);
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}
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}
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@Override
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public int getMinHeight() {
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return height;
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}
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public Object getClicked(Point point) {
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int lane=point.y/waveCanvas.getTrackHeight();
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Entry<Long, List<ITxEvent>> firstTx=stream.getEvents().floorEntry(point.x*waveCanvas.getScaleFactor());
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if(firstTx!=null){
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do {
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ITx tx = getTxFromEntry(lane, firstTx);
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if(tx!=null) return tx;
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firstTx=stream.getEvents().lowerEntry(firstTx.getKey());
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}while(firstTx!=null);
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}
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return stream;
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}
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public ITxStream<? extends ITxEvent> getStream() {
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return stream;
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}
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public void setStream(ITxStream<? extends ITxEvent> stream) {
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this.stream = stream;
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}
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protected ITx getTxFromEntry(int lane, Entry<Long, List<ITxEvent>> firstTx) {
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for(ITxEvent evt:firstTx.getValue()){
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if(evt.getType()==ITxEvent.Type.BEGIN && evt.getTransaction().getConcurrencyIndex()==lane){
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return evt.getTransaction();
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}
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}
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return null;
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}
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} |