456 lines
16 KiB
Java
456 lines
16 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.HashMap;
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import java.util.LinkedList;
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import java.util.List;
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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.events.ControlAdapter;
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import org.eclipse.swt.events.ControlEvent;
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import org.eclipse.swt.events.PaintEvent;
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import org.eclipse.swt.events.PaintListener;
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import org.eclipse.swt.events.SelectionAdapter;
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import org.eclipse.swt.events.SelectionEvent;
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import org.eclipse.swt.graphics.Color;
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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.RGB;
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import org.eclipse.swt.graphics.Rectangle;
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import org.eclipse.swt.graphics.Transform;
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import org.eclipse.swt.widgets.Canvas;
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import org.eclipse.swt.widgets.Composite;
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import org.eclipse.swt.widgets.Display;
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import org.eclipse.swt.widgets.Event;
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import org.eclipse.swt.widgets.ScrollBar;
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import org.eclipse.wb.swt.SWTResourceManager;
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import com.google.common.collect.Lists;
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import com.minres.scviewer.database.ITx;
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import com.minres.scviewer.database.IWaveform;
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import com.minres.scviewer.database.IWaveformEvent;
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public class WaveformCanvas extends Canvas {
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public enum Colors {
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LINE, LINE_HIGHLITE,
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TRACK_BG_EVEN, TRACK_BG_ODD, TRACK_BG_HIGHLITE,
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TX_BG, TX_BG_HIGHLITE, TX_BORDER,
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SIGNAL0, SIGNAL1, SIGNALZ, SIGNALX, SIGNAL_TEXT,
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CURSOR, CURSOR_DRAG, CURSOR_TEXT,
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MARKER, MARKER_TEXT
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}
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Color[] colors = new Color[Colors.values().length];
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private int trackHeight = 50;
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private long scaleFactor = 1000000L; // 1ns
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String unit="ns";
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private int level = 12;
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public final static String[] unitString={"fs", "ps", "ns", "µs", "ms"};//, "s"};
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public final static int[] unitMultiplier={1, 3, 10, 30, 100, 300};
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private long maxTime;
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protected Point origin; /* original size */
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protected Transform transform;
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protected int rulerHeight=40;
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protected List<IPainter> painterList;
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TreeMap<Integer, IWaveformPainter> trackVerticalOffset;
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protected List<IWaveform<? extends IWaveformEvent>> streams;
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ITx currentSelection;
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IWaveform<? extends IWaveformEvent> currentWaveformSelection;
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private List<SelectionAdapter> selectionListeners;
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/**
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* Constructor for ScrollableCanvas.
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*
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* @param parent
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* the parent of this control.
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* @param style
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* the style of this control.
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*/
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public WaveformCanvas(final Composite parent, int style) {
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super(parent, style | SWT.DOUBLE_BUFFERED | SWT.NO_BACKGROUND | SWT.NO_REDRAW_RESIZE | SWT.V_SCROLL | SWT.H_SCROLL);
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addControlListener(new ControlAdapter() { /* resize listener. */
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public void controlResized(ControlEvent event) {
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syncScrollBars();
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}
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});
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addPaintListener(new PaintListener() { /* paint listener. */
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public void paintControl(final PaintEvent event) {
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paint(event.gc);
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}
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});
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painterList = new LinkedList<IPainter>();
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origin = new Point(0, 0);
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transform = new Transform(getDisplay());
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trackVerticalOffset = new TreeMap<Integer, IWaveformPainter>();
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selectionListeners = new LinkedList<>();
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initScrollBars();
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initColors(null);
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}
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private void initColors(HashMap<Colors, RGB> colourMap) {
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Display d = getDisplay();
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if (colourMap != null) {
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for (Colors c : Colors.values()) {
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if (colourMap.containsKey(c)) {
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colors[c.ordinal()].dispose();
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colors[c.ordinal()] = new Color(d, colourMap.get(c));
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}
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}
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} else {
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colors[Colors.LINE.ordinal()] = SWTResourceManager.getColor(SWT.COLOR_RED);
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colors[Colors.LINE_HIGHLITE.ordinal()] = SWTResourceManager.getColor(SWT.COLOR_CYAN);
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colors[Colors.TRACK_BG_EVEN.ordinal()] = SWTResourceManager.getColor(SWT.COLOR_BLACK);
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colors[Colors.TRACK_BG_ODD.ordinal()] = SWTResourceManager.getColor(40, 40, 40);
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colors[Colors.TRACK_BG_HIGHLITE.ordinal()] = SWTResourceManager.getColor(40, 40, 80);
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colors[Colors.TX_BG.ordinal()] = SWTResourceManager.getColor(SWT.COLOR_GREEN);
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colors[Colors.TX_BG_HIGHLITE.ordinal()] = SWTResourceManager.getColor(SWT.COLOR_DARK_GREEN);
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colors[Colors.TX_BORDER.ordinal()] = SWTResourceManager.getColor(SWT.COLOR_RED);
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colors[Colors.SIGNAL0.ordinal()] = SWTResourceManager.getColor(SWT.COLOR_DARK_GREEN);
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colors[Colors.SIGNAL1.ordinal()] = SWTResourceManager.getColor(SWT.COLOR_DARK_GREEN);
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colors[Colors.SIGNALZ.ordinal()] = SWTResourceManager.getColor(SWT.COLOR_GRAY);
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colors[Colors.SIGNALX.ordinal()] = SWTResourceManager.getColor(255, 128, 182);
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colors[Colors.SIGNAL_TEXT.ordinal()] = SWTResourceManager.getColor(SWT.COLOR_WHITE);
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colors[Colors.CURSOR.ordinal()] = SWTResourceManager.getColor(SWT.COLOR_RED);
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colors[Colors.CURSOR_DRAG.ordinal()] = SWTResourceManager.getColor(SWT.COLOR_GRAY);
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colors[Colors.CURSOR_TEXT.ordinal()] = SWTResourceManager.getColor(SWT.COLOR_WHITE);
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colors[Colors.MARKER.ordinal()] = SWTResourceManager.getColor(SWT.COLOR_DARK_GRAY);
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colors[Colors.MARKER_TEXT.ordinal()] = SWTResourceManager.getColor(SWT.COLOR_WHITE);
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}
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}
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public List<IWaveform<? extends IWaveformEvent>> getStreams() {
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return streams;
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}
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public void setStreams(List<IWaveform<? extends IWaveformEvent>> streams) {
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this.streams = streams;
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}
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public Point getOrigin() {
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return origin;
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}
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public void setOrigin(Point origin) {
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setOrigin(origin.x, origin.y);
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}
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public void setOrigin(int x, int y) {
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checkWidget();
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ScrollBar hBar = getHorizontalBar();
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hBar.setSelection(-x);
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x = -hBar.getSelection();
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ScrollBar vBar = getVerticalBar();
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vBar.setSelection(-y);
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y = -vBar.getSelection();
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origin.x = x;
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origin.y = y;
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syncScrollBars();
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}
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public long getMaxTime() {
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return maxTime;
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}
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public void setMaxTime(long maxTime) {
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this.maxTime = maxTime;
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syncScrollBars();
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}
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public int getTrackHeight() {
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return trackHeight;
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}
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public void setTrackHeight(int trackHeight) {
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this.trackHeight = trackHeight;
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syncScrollBars();
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}
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public int getZoomLevel() {
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return level;
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}
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public int getMaxZoomLevel(){
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return unitMultiplier.length*unitString.length-1;
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}
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public void setZoomLevel(int level) {
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if(level<unitMultiplier.length*unitString.length){
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this.level = level;
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this.scaleFactor = (long) Math.pow(10, level/2);
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if(level%2==1) this.scaleFactor*=3;
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syncScrollBars();
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}
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}
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public long getScaleFactor() {
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return scaleFactor;
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}
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public long getScaleFactorPow10() {
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int scale = level/unitMultiplier.length;
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double res = Math.pow(1000, scale);
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return (long) res;
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}
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public String getUnitStr(){
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return unitString[level/unitMultiplier.length];
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}
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public int getUnitMultiplier(){
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return unitMultiplier[level%unitMultiplier.length];
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}
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public long getTimeForOffset(int xOffset){
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return (xOffset-origin.x) * scaleFactor;
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}
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public void addPainter(IPainter painter) {
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painterList.add(painter);
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redraw();
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}
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public void removePainter(IPainter painter) {
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painterList.remove(painter);
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redraw();
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}
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public void clearAllWavefromPainter() {
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trackVerticalOffset.clear();
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syncScrollBars();
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}
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public void addWavefromPainter(int yoffs, IWaveformPainter painter) {
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trackVerticalOffset.put(yoffs+rulerHeight, painter);
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syncScrollBars();
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}
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/**
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* Dispose the garbage here
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*/
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public void dispose() {
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transform.dispose();
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for (Colors c : Colors.values())
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colors[c.ordinal()].dispose();
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super.dispose();
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}
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/* Initalize the scrollbar and register listeners. */
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private void initScrollBars() {
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ScrollBar horizontal = getHorizontalBar();
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horizontal.setEnabled(false);
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horizontal.setVisible(true);
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horizontal.addSelectionListener(new SelectionAdapter() {
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public void widgetSelected(SelectionEvent event) {
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if (painterList.size() == 0)
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return;
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setOrigin(-((ScrollBar) event.widget).getSelection(), origin.y);
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}
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});
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ScrollBar vertical = getVerticalBar();
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vertical.setEnabled(false);
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vertical.setVisible(true);
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vertical.addSelectionListener(new SelectionAdapter() {
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public void widgetSelected(SelectionEvent event) {
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if (painterList.size() == 0)
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return;
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setOrigin(origin.x, -((ScrollBar) event.widget).getSelection());
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}
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});
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}
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/**
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* Synchronize the scrollbar with the image. If the transform is out of
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* range, it will correct it. This function considers only following factors
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* :<b> transform, image size, client area</b>.
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*/
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private void syncScrollBars() {
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if (painterList.size() == 0) {
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redraw();
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return;
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}
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int height = 1;
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if (trackVerticalOffset.size() > 0)
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height = trackVerticalOffset.lastKey() + trackVerticalOffset.lastEntry().getValue().getMinHeight();
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int width = (int) (maxTime / scaleFactor);
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ScrollBar horizontal = getHorizontalBar();
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horizontal.setIncrement((int) (getClientArea().width / 100));
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horizontal.setPageIncrement(getClientArea().width);
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int cw = getClientArea().width;
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if (width > cw) { /* image is wider than client area */
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horizontal.setMaximum(width);
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horizontal.setEnabled(true);
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if (((int) -origin.x) > horizontal.getMaximum() - cw)
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origin.x = -horizontal.getMaximum() + cw;
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} else { /* image is narrower than client area */
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horizontal.setEnabled(false);
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}
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horizontal.setSelection(-origin.x);
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horizontal.setThumb(cw);
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ScrollBar vertical = getVerticalBar();
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vertical.setIncrement((int) (getClientArea().height / 100));
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vertical.setPageIncrement((int) (getClientArea().height));
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int ch = getClientArea().height;
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if (height > ch) { /* image is higher than client area */
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vertical.setMaximum(height);
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vertical.setEnabled(true);
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if (((int) -origin.y) > vertical.getMaximum() - ch)
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origin.y = -vertical.getMaximum() + ch;
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} else { /* image is less higher than client area */
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vertical.setMaximum((int) (ch));
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vertical.setEnabled(false);
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}
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vertical.setSelection(-origin.y);
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vertical.setThumb(ch);
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redraw();
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fireSelectionEvent();
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}
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/* Paint function */
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private void paint(GC gc) {
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Rectangle clientRect = getClientArea(); /* Canvas' painting area */
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clientRect.x = -origin.x;
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clientRect.y = -origin.y;
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// reset the transform
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transform.identity();
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// shift the content
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transform.translate(origin.x, origin.y);
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gc.setTransform(transform);
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gc.setClipping(clientRect);
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if (painterList.size() > 0 && trackVerticalOffset.size() > 0) {
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for (IPainter painter : painterList)
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painter.paintArea(gc, clientRect);
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} else {
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gc.fillRectangle(clientRect);
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initScrollBars();
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}
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}
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public List<Object> getClicked(Point point) {
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LinkedList<Object> result=new LinkedList<>();
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for (IPainter p : Lists.reverse(painterList)) {
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if (p instanceof TrackPainter) {
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int y = point.y - origin.y;
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int x = point.x - origin.x;
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Entry<Integer, IWaveformPainter> entry = trackVerticalOffset.floorEntry(y);
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if (entry != null) {
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if (entry.getValue() instanceof StreamPainter) {
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result.add(((StreamPainter) entry.getValue()).getClicked(new Point(x, y - entry.getKey())));
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} else if (entry.getValue() instanceof SignalPainter)
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result.add(((SignalPainter) entry.getValue()).getSignal());
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}
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} else if (p instanceof CursorPainter) {
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if (Math.abs(point.x - origin.x - ((CursorPainter) p).getTime()/scaleFactor) < 2) {
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result.add(p);
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}
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}
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}
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return result;
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}
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public List<Object> getEntriesAtPosition(IWaveform<? extends IWaveformEvent> iWaveform, int i) {
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LinkedList<Object> result=new LinkedList<>();
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int x = i - origin.x;
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for(IPainter p: trackVerticalOffset.values()){
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if (p instanceof StreamPainter && ((StreamPainter)p).getStream()==iWaveform) {
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result.add(((StreamPainter) p).getClicked(new Point(x, trackHeight/2)));
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}
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}
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return result;
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}
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public void setSelected(ITx currentSelection, IWaveform<? extends IWaveformEvent> currentWaveformSelection) {
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this.currentSelection = currentSelection;
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this.currentWaveformSelection = currentWaveformSelection;
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if (currentSelection != null)
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reveal(currentSelection);
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redraw();
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}
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public void reveal(ITx tx) {
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int lower = (int) (tx.getBeginTime() / scaleFactor);
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int higher = (int) (tx.getEndTime() / scaleFactor);
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Point size = getSize();
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size.x -= getVerticalBar().getSize().x + 2;
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size.y -= getHorizontalBar().getSize().y;
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if (lower < -origin.x) {
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setOrigin(-lower, origin.y);
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} else if (higher > (size.x - origin.x)) {
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setOrigin(size.x - higher, origin.y);
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}
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for (Entry<Integer, IWaveformPainter> entry : trackVerticalOffset.entrySet()) {
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if (entry.getValue() instanceof StreamPainter && ((StreamPainter) entry.getValue()).getStream() == tx.getStream()) {
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int top = entry.getKey() + trackHeight * tx.getConcurrencyIndex();
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int bottom = top + trackHeight;
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if (top < -origin.y) {
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setOrigin(origin.x, -(top-trackHeight));
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} else if (bottom > (size.y - origin.y)) {
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setOrigin(origin.x, size.y - bottom);
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}
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}
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}
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}
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public void reveal(long time) {
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int scaledTime = (int) (time / scaleFactor);
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Point size = getSize();
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size.x -= getVerticalBar().getSize().x + 2;
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size.y -= getHorizontalBar().getSize().y;
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if (scaledTime < -origin.x) {
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setOrigin(-scaledTime+10, origin.y);
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} else if (scaledTime > (size.x - origin.x)) {
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setOrigin(size.x - scaledTime-30, origin.y);
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}
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}
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public int getRulerHeight() {
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return rulerHeight;
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}
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public void setRulerHeight(int rulerHeight) {
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this.rulerHeight = rulerHeight;
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}
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public void addSelectionListener(SelectionAdapter selectionAdapter) {
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selectionListeners.add(selectionAdapter);
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}
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public void removeSelectionListener(SelectionAdapter selectionAdapter) {
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selectionListeners.remove(selectionAdapter);
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}
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/**
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*
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*/
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protected void fireSelectionEvent() {
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Event e = new Event();
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e.widget = this;
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e.detail=SWT.SELECTED;
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e.type=SWT.Selection;
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SelectionEvent ev = new SelectionEvent(e);
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ev.x = origin.x;
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ev.y = origin.y;
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for (SelectionAdapter a : selectionListeners) {
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a.widgetSelected(ev);
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}
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}
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}
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