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c392540b | 1 | /******************************************************************************* |
11252342 | 2 | * Copyright (c) 2011, 2013 Ericsson |
bfe038ff | 3 | * |
c392540b FC |
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 | * |
c392540b FC |
9 | * Contributors: |
10 | * Francois Chouinard - Initial API and implementation | |
fbd124dd | 11 | * Bernd Hufmann - Changed to updated histogram data model |
65cdf787 | 12 | * Patrick Tasse - Update for mouse wheel zoom |
c392540b FC |
13 | *******************************************************************************/ |
14 | ||
e0752744 | 15 | package org.eclipse.linuxtools.tmf.ui.views.histogram; |
c392540b FC |
16 | |
17 | import org.eclipse.swt.SWT; | |
18 | import org.eclipse.swt.events.MouseEvent; | |
c392540b | 19 | import org.eclipse.swt.events.PaintEvent; |
c392540b FC |
20 | import org.eclipse.swt.graphics.GC; |
21 | import org.eclipse.swt.graphics.Image; | |
22 | import org.eclipse.swt.widgets.Composite; | |
c392540b FC |
23 | |
24 | /** | |
d26274e7 | 25 | * A histogram widget that displays the event distribution of a whole trace. |
c392540b FC |
26 | * <p> |
27 | * It also features a selected range window that can be dragged and zoomed. | |
f8177ba2 FC |
28 | * |
29 | * @version 1.1 | |
b544077e | 30 | * @author Francois Chouinard |
c392540b | 31 | */ |
f888477a | 32 | public class FullTraceHistogram extends Histogram { |
c392540b | 33 | |
c392540b FC |
34 | // ------------------------------------------------------------------------ |
35 | // Attributes | |
36 | // ------------------------------------------------------------------------ | |
37 | ||
38 | private final HistogramZoom fZoom; | |
39 | ||
f8177ba2 | 40 | private long fRangeStartTime = 0L; |
c392540b FC |
41 | private long fRangeDuration; |
42 | ||
43 | // ------------------------------------------------------------------------ | |
44 | // Construction | |
45 | // ------------------------------------------------------------------------ | |
46 | ||
b544077e | 47 | /** |
f8177ba2 FC |
48 | * Full Constructor |
49 | * | |
50 | * @param view A reference to the parent histogram view | |
b544077e BH |
51 | * @param parent A reference to the parent composite |
52 | */ | |
c392540b FC |
53 | public FullTraceHistogram(HistogramView view, Composite parent) { |
54 | super(view, parent); | |
65cdf787 PT |
55 | fZoom = new HistogramZoom(this, getStartTime(), getTimeLimit()); |
56 | addMouseWheelListener(fZoom); | |
c392540b FC |
57 | } |
58 | ||
59 | @Override | |
60 | public void dispose() { | |
c392540b FC |
61 | super.dispose(); |
62 | } | |
63 | ||
64 | // ------------------------------------------------------------------------ | |
65 | // Operations | |
66 | // ------------------------------------------------------------------------ | |
67 | ||
1be49d83 PT |
68 | @Override |
69 | public void clear() { | |
70 | fRangeStartTime = 0L; | |
71 | fRangeDuration = 0L; | |
72 | if (fZoom != null) { | |
73 | fZoom.setFullRange(0L, 0L); | |
74 | fZoom.setNewRange(0L, 0L); | |
1be49d83 PT |
75 | } |
76 | super.clear(); | |
77 | } | |
78 | ||
b544077e | 79 | /** |
f8177ba2 FC |
80 | * Sets the time range of the full histogram. |
81 | * | |
b544077e BH |
82 | * @param startTime A start time |
83 | * @param endTime A end time | |
84 | */ | |
6a13fa07 FC |
85 | public void setFullRange(long startTime, long endTime) { |
86 | fZoom.setFullRange(startTime, endTime); | |
87 | } | |
88 | ||
b544077e BH |
89 | /** |
90 | * Sets the selected time range. | |
f8177ba2 FC |
91 | * |
92 | * @param startTime The histogram start time | |
93 | * @param duration The histogram duration | |
b544077e | 94 | */ |
c392540b FC |
95 | public void setTimeRange(long startTime, long duration) { |
96 | fRangeStartTime = startTime; | |
97 | fRangeDuration = duration; | |
c392540b | 98 | fZoom.setNewRange(fRangeStartTime, fRangeDuration); |
fbd124dd | 99 | fDataModel.complete(); |
c392540b FC |
100 | } |
101 | ||
c392540b FC |
102 | // ------------------------------------------------------------------------ |
103 | // MouseListener | |
104 | // ------------------------------------------------------------------------ | |
105 | ||
c392540b | 106 | private int fStartPosition; |
f888477a | 107 | private boolean fMouseMoved; |
c392540b FC |
108 | |
109 | @Override | |
110 | public void mouseDown(MouseEvent event) { | |
647640df | 111 | if (fScaledData != null && fDragState == DRAG_NONE && fDataModel.getNbEvents() != 0) { |
79d60771 PT |
112 | if (event.button == 2 || (event.button == 1 && (event.stateMask & SWT.MODIFIER_MASK) == SWT.CTRL)) { |
113 | fDragState = DRAG_RANGE; | |
114 | fDragButton = event.button; | |
115 | fStartPosition = event.x; | |
116 | fMouseMoved = false; | |
117 | return; | |
118 | } else if (event.button == 3) { | |
119 | fDragState = DRAG_ZOOM; | |
120 | fDragButton = event.button; | |
121 | long time = Math.min(getTimestamp(event.x), getEndTime()); | |
122 | if ((event.stateMask & SWT.MODIFIER_MASK) == SWT.SHIFT) { | |
123 | if (time < fRangeStartTime + fRangeDuration / 2) { | |
124 | fRangeStartTime = fRangeStartTime + fRangeDuration; | |
125 | } | |
126 | } else { | |
127 | fRangeStartTime = time; | |
128 | } | |
129 | fRangeDuration = time - fRangeStartTime; | |
130 | fCanvas.redraw(); | |
131 | return; | |
132 | } | |
f888477a PT |
133 | } |
134 | super.mouseDown(event); | |
c392540b | 135 | } |
f8177ba2 | 136 | |
c392540b FC |
137 | @Override |
138 | public void mouseUp(MouseEvent event) { | |
f888477a PT |
139 | if (fDragState == DRAG_RANGE && event.button == fDragButton) { |
140 | fDragState = DRAG_NONE; | |
141 | fDragButton = 0; | |
142 | if (!fMouseMoved) { | |
143 | // if single click without move, center on the click | |
144 | long startTime = getTimestamp(event.x) - fRangeDuration / 2; | |
145 | fRangeStartTime = Math.max(getStartTime(), Math.min(getEndTime() - fRangeDuration, startTime)); | |
1c467552 | 146 | } |
13ccc36b | 147 | ((HistogramView) fParentView).updateTimeRange(fRangeStartTime, fRangeStartTime + fRangeDuration); |
f888477a | 148 | return; |
79d60771 PT |
149 | } else if (fDragState == DRAG_ZOOM && event.button == fDragButton) { |
150 | fDragState = DRAG_NONE; | |
151 | fDragButton = 0; | |
152 | if (fRangeDuration < 0) { | |
153 | fRangeStartTime = fRangeStartTime + fRangeDuration; | |
154 | fRangeDuration = -fRangeDuration; | |
155 | } | |
156 | if (fRangeDuration > 0) { | |
157 | ((HistogramView) fParentView).updateTimeRange(fRangeStartTime, fRangeStartTime + fRangeDuration); | |
158 | } else { | |
159 | fRangeStartTime = fZoom.getStartTime(); | |
160 | fRangeDuration = fZoom.getDuration(); | |
161 | fCanvas.redraw(); | |
162 | } | |
163 | return; | |
c392540b | 164 | } |
f888477a | 165 | super.mouseUp(event); |
c392540b | 166 | } |
f8177ba2 | 167 | |
c392540b FC |
168 | // ------------------------------------------------------------------------ |
169 | // MouseMoveListener | |
170 | // ------------------------------------------------------------------------ | |
171 | ||
172 | @Override | |
173 | public void mouseMove(MouseEvent event) { | |
f888477a | 174 | if (fDragState == DRAG_RANGE) { |
c392540b FC |
175 | int nbBuckets = event.x - fStartPosition; |
176 | long delta = nbBuckets * fScaledData.fBucketDuration; | |
177 | long newStart = fZoom.getStartTime() + delta; | |
bfe038ff | 178 | if (newStart < getStartTime()) { |
c392540b | 179 | newStart = getStartTime(); |
bfe038ff | 180 | } |
c392540b FC |
181 | long newEnd = newStart + fZoom.getDuration(); |
182 | if (newEnd > getEndTime()) { | |
183 | newEnd = getEndTime(); | |
184 | newStart = newEnd - fZoom.getDuration(); | |
185 | } | |
186 | fRangeStartTime = newStart; | |
f888477a PT |
187 | fCanvas.redraw(); |
188 | fMouseMoved = true; | |
189 | return; | |
79d60771 PT |
190 | } else if (fDragState == DRAG_ZOOM) { |
191 | long endTime = Math.max(getStartTime(), Math.min(getEndTime(), getTimestamp(event.x))); | |
192 | fRangeDuration = endTime - fRangeStartTime; | |
193 | fCanvas.redraw(); | |
194 | return; | |
c392540b | 195 | } |
f888477a | 196 | super.mouseMove(event); |
c392540b FC |
197 | } |
198 | ||
199 | // ------------------------------------------------------------------------ | |
200 | // PaintListener | |
201 | // ------------------------------------------------------------------------ | |
202 | ||
203 | @Override | |
204 | public void paintControl(PaintEvent event) { | |
205 | super.paintControl(event); | |
206 | ||
207 | Image image = (Image) fCanvas.getData(IMAGE_KEY); | |
208 | assert image != null; | |
209 | ||
210 | Image rangeRectangleImage = new Image(image.getDevice(), image, SWT.IMAGE_COPY); | |
211 | GC rangeWindowGC = new GC(rangeRectangleImage); | |
212 | ||
79d60771 PT |
213 | if ((fScaledData != null) && (fRangeDuration != 0 || fDragState == DRAG_ZOOM)) { |
214 | drawTimeRangeWindow(rangeWindowGC, fRangeStartTime, fRangeDuration); | |
c392540b FC |
215 | } |
216 | ||
217 | // Draws the buffer image onto the canvas. | |
218 | event.gc.drawImage(rangeRectangleImage, 0, 0); | |
219 | ||
220 | rangeWindowGC.dispose(); | |
221 | rangeRectangleImage.dispose(); | |
222 | } | |
223 | ||
65cdf787 PT |
224 | /** |
225 | * Get the histogram zoom | |
226 | * @return the histogram zoom | |
227 | * @since 2.0 | |
228 | */ | |
229 | public HistogramZoom getZoom() { | |
230 | return fZoom; | |
231 | } | |
c392540b | 232 | } |