91 lines
2.6 KiB
Java
91 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 org.eclipse.swt.graphics.Color;
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import org.eclipse.swt.graphics.Rectangle;
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import com.minres.scviewer.database.ui.ICursor;
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import com.minres.scviewer.database.ui.WaveformColors;
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public class CursorPainter implements IPainter, ICursor {
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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 long time;
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private boolean isDragging;
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public final int id;
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/// maximum visible canvas position in canvas coordinates
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int maxPosX;
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/// maximum visible position in waveform coordinates
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int maxValX;
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/**
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* @param i
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* @param txDisplay
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*/
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public CursorPainter(WaveformCanvas txDisplay, long time, int id) {
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this.waveCanvas = txDisplay;
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this.time=time;
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this.id=id;
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}
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public long getTime() {
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return time;
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}
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public void setTime(long time) {
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this.time = time;
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}
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public boolean isDragging() {
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return isDragging;
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}
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public void setDragging(boolean isDragging) {
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this.isDragging = isDragging;
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}
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public void paintArea(Projection proj, Rectangle clientRect) {
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Rectangle area = proj.unProject(clientRect);
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if(this.waveCanvas.painterList.size()>0){
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long scaleFactor=waveCanvas.getScaleFactor();
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long beginPos = area.x;
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maxPosX = area.x + area.width;
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maxValX = maxPosX;
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// x position of marker in pixels on canvas
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int x = (int) (time/scaleFactor);
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// distance of marker from the top of Canvas' painting area
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int top = id<0?area.y:area.y+15;
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Color drawColor=waveCanvas.colors[id<0?WaveformColors.CURSOR.ordinal():WaveformColors.MARKER.ordinal()];
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Color dragColor = waveCanvas.colors[WaveformColors.CURSOR_DRAG.ordinal()];
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Color textColor=waveCanvas.colors[id<0?WaveformColors.CURSOR_TEXT.ordinal():WaveformColors.MARKER_TEXT.ordinal()];
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if(x>=beginPos && x<=maxValX){
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proj.setForeground(isDragging?dragColor:drawColor);
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proj.drawLine(x, top, x, area.y+area.height);
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proj.setBackground(drawColor);
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proj.setForeground(textColor);
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Double dTime=new Double(time);
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proj.drawText((dTime/waveCanvas.getScaleFactorPow10())+waveCanvas.getUnitStr(), x+1, top);
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}
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}
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}
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} |