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c392540b | 1 | /******************************************************************************* |
e0752744 | 2 | * Copyright (c) 2011, 2012 Ericsson |
bfe038ff | 3 | * |
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4 | * All rights reserved. This program and the accompanying materials are |
5 | * made available under the terms of the Eclipse Public License v1.0 which | |
6 | * accompanies this distribution, and is available at | |
7 | * http://www.eclipse.org/legal/epl-v10.html | |
bfe038ff | 8 | * |
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9 | * Contributors: |
10 | * Francois Chouinard - Initial API and implementation | |
fbd124dd | 11 | * Bernd Hufmann - Changed to updated histogram data model |
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12 | *******************************************************************************/ |
13 | ||
e0752744 | 14 | package org.eclipse.linuxtools.tmf.ui.views.histogram; |
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15 | |
16 | import org.eclipse.swt.SWT; | |
17 | import org.eclipse.swt.events.MouseEvent; | |
18 | import org.eclipse.swt.events.MouseMoveListener; | |
19 | import org.eclipse.swt.events.PaintEvent; | |
20 | import org.eclipse.swt.graphics.Color; | |
21 | import org.eclipse.swt.graphics.GC; | |
22 | import org.eclipse.swt.graphics.Image; | |
23 | import org.eclipse.swt.widgets.Composite; | |
24 | import org.eclipse.swt.widgets.Display; | |
25 | ||
26 | /** | |
d26274e7 | 27 | * A histogram widget that displays the event distribution of a whole trace. |
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28 | * <p> |
29 | * It also features a selected range window that can be dragged and zoomed. | |
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30 | * |
31 | * @version 1.0 | |
32 | * @author Francois Chouinard | |
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33 | */ |
34 | public class FullTraceHistogram extends Histogram implements MouseMoveListener { | |
35 | ||
36 | // ------------------------------------------------------------------------ | |
37 | // Constants | |
38 | // ------------------------------------------------------------------------ | |
39 | ||
40 | // Histogram colors | |
41 | private final Color fTimeRangeColor = new Color(Display.getCurrent(), 255, 128, 0); | |
42 | ||
43 | // ------------------------------------------------------------------------ | |
44 | // Attributes | |
45 | // ------------------------------------------------------------------------ | |
46 | ||
47 | private final HistogramZoom fZoom; | |
48 | ||
49 | private long fRangeStartTime; | |
50 | private long fRangeDuration; | |
51 | ||
52 | // ------------------------------------------------------------------------ | |
53 | // Construction | |
54 | // ------------------------------------------------------------------------ | |
55 | ||
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56 | /** |
57 | * Standard Constructor. | |
58 | * | |
59 | * @param view A reference to the parent histogram view | |
60 | * @param parent A reference to the parent composite | |
61 | */ | |
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62 | public FullTraceHistogram(HistogramView view, Composite parent) { |
63 | super(view, parent); | |
64 | fZoom = new HistogramZoom(this, fCanvas, getStartTime(), getTimeLimit()); | |
65 | fCanvas.addMouseMoveListener(this); | |
66 | } | |
67 | ||
68 | @Override | |
69 | public void dispose() { | |
70 | fTimeRangeColor.dispose(); | |
71 | super.dispose(); | |
72 | } | |
73 | ||
74 | // ------------------------------------------------------------------------ | |
75 | // Operations | |
76 | // ------------------------------------------------------------------------ | |
77 | ||
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78 | /** |
79 | * Sets the time range of the full histogram. | |
80 | * | |
81 | * @param startTime A start time | |
82 | * @param endTime A end time | |
83 | */ | |
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84 | public void setFullRange(long startTime, long endTime) { |
85 | fZoom.setFullRange(startTime, endTime); | |
86 | } | |
87 | ||
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88 | /** |
89 | * Sets the selected time range. | |
90 | * | |
91 | * @param startTime A start time | |
92 | * @param duration A window duration | |
93 | */ | |
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94 | public void setTimeRange(long startTime, long duration) { |
95 | fRangeStartTime = startTime; | |
96 | fRangeDuration = duration; | |
c392540b | 97 | fZoom.setNewRange(fRangeStartTime, fRangeDuration); |
fbd124dd | 98 | fDataModel.complete(); |
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99 | } |
100 | ||
101 | @Override | |
102 | public void updateTimeRange(long startTime, long endTime) { | |
103 | ((HistogramView) fParentView).updateTimeRange(startTime, endTime); | |
104 | } | |
105 | ||
106 | // ------------------------------------------------------------------------ | |
107 | // MouseListener | |
108 | // ------------------------------------------------------------------------ | |
109 | ||
110 | private boolean fMouseDown; | |
111 | private int fStartPosition; | |
112 | ||
113 | @Override | |
114 | public void mouseDown(MouseEvent event) { | |
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115 | fMouseDown = true; |
116 | fStartPosition = event.x; | |
117 | } | |
1c467552 | 118 | |
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119 | @Override |
120 | public void mouseUp(MouseEvent event) { | |
121 | if (fMouseDown) { | |
122 | fMouseDown = false; | |
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123 | // Check if mouse click without move; if so, just set the current event time |
124 | if (event.x == fStartPosition) { | |
125 | super.mouseDown(event); | |
126 | return; | |
127 | } | |
128 | ||
c392540b | 129 | ((HistogramView) fParentView).updateTimeRange(fRangeStartTime, fRangeStartTime + fZoom.getDuration()); |
1c467552 | 130 | |
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131 | } |
132 | } | |
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133 | |
134 | ||
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135 | // ------------------------------------------------------------------------ |
136 | // MouseMoveListener | |
137 | // ------------------------------------------------------------------------ | |
138 | ||
139 | @Override | |
140 | public void mouseMove(MouseEvent event) { | |
1c467552 | 141 | |
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142 | if (fMouseDown) { |
143 | int nbBuckets = event.x - fStartPosition; | |
144 | long delta = nbBuckets * fScaledData.fBucketDuration; | |
145 | long newStart = fZoom.getStartTime() + delta; | |
bfe038ff | 146 | if (newStart < getStartTime()) { |
c392540b | 147 | newStart = getStartTime(); |
bfe038ff | 148 | } |
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149 | long newEnd = newStart + fZoom.getDuration(); |
150 | if (newEnd > getEndTime()) { | |
151 | newEnd = getEndTime(); | |
152 | newStart = newEnd - fZoom.getDuration(); | |
153 | } | |
154 | fRangeStartTime = newStart; | |
fbd124dd | 155 | fDataModel.complete(); |
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156 | } |
157 | } | |
158 | ||
159 | // ------------------------------------------------------------------------ | |
160 | // PaintListener | |
161 | // ------------------------------------------------------------------------ | |
162 | ||
163 | @Override | |
164 | public void paintControl(PaintEvent event) { | |
165 | super.paintControl(event); | |
166 | ||
167 | Image image = (Image) fCanvas.getData(IMAGE_KEY); | |
168 | assert image != null; | |
169 | ||
170 | Image rangeRectangleImage = new Image(image.getDevice(), image, SWT.IMAGE_COPY); | |
171 | GC rangeWindowGC = new GC(rangeRectangleImage); | |
172 | ||
bfe038ff | 173 | if ((fScaledData != null) && (fRangeStartTime != 0)) { |
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174 | drawTimeRangeWindow(rangeWindowGC, rangeRectangleImage); |
175 | } | |
176 | ||
177 | // Draws the buffer image onto the canvas. | |
178 | event.gc.drawImage(rangeRectangleImage, 0, 0); | |
179 | ||
180 | rangeWindowGC.dispose(); | |
181 | rangeRectangleImage.dispose(); | |
182 | } | |
183 | ||
184 | private void drawTimeRangeWindow(GC imageGC, Image image) { | |
185 | ||
186 | // Map times to histogram coordinates | |
bfe038ff | 187 | long bucketSpan = Math.max(fScaledData.fBucketDuration,1); |
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188 | int rangeWidth = (int) (fRangeDuration / bucketSpan); |
189 | ||
fbd124dd | 190 | int left = (int) ((fRangeStartTime - fDataModel.getFirstBucketTime()) / bucketSpan); |
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191 | int right = left + rangeWidth; |
192 | int center = (left + right) / 2; | |
e60df94a | 193 | int height = fCanvas.getSize().y; |
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194 | |
195 | // Draw the selection window | |
196 | imageGC.setForeground(fTimeRangeColor); | |
197 | imageGC.setLineWidth(1); | |
198 | imageGC.setLineStyle(SWT.LINE_SOLID); | |
199 | imageGC.drawRoundRectangle(left, 0, rangeWidth, height - 1, 15, 15); | |
200 | ||
201 | // Fill the selection window | |
202 | imageGC.setBackground(fTimeRangeColor); | |
203 | imageGC.setAlpha(35); | |
204 | imageGC.fillRoundRectangle(left + 1, 1, rangeWidth - 1, height - 2, 15, 15); | |
205 | imageGC.setAlpha(255); | |
206 | ||
207 | // Draw the cross hair | |
208 | imageGC.setForeground(fTimeRangeColor); | |
209 | imageGC.setLineWidth(1); | |
210 | imageGC.setLineStyle(SWT.LINE_SOLID); | |
211 | ||
bfe038ff | 212 | int chHalfWidth = ((rangeWidth < 60) ? (rangeWidth * 2) / 3 : 40) / 2; |
c392540b | 213 | imageGC.drawLine(center - chHalfWidth, height / 2, center + chHalfWidth, height / 2); |
bfe038ff | 214 | imageGC.drawLine(center, (height / 2) - chHalfWidth, center, (height / 2) + chHalfWidth); |
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215 | } |
216 | ||
217 | } |