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0b09e0cf | 1 | /********************************************************************** |
60ae41e1 | 2 | * Copyright (c) 2013, 2014 Ericsson |
0b09e0cf BH |
3 | * |
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 | |
8 | * | |
9 | * Contributors: | |
10 | * Bernd Hufmann - Initial API and implementation | |
11 | **********************************************************************/ | |
2bdf0193 | 12 | package org.eclipse.tracecompass.tmf.ui.viewers.xycharts; |
0b09e0cf BH |
13 | |
14 | import org.eclipse.swt.SWT; | |
15 | import org.eclipse.swt.events.MouseEvent; | |
16 | import org.eclipse.swt.events.MouseListener; | |
17 | import org.eclipse.swt.events.MouseMoveListener; | |
18 | import org.eclipse.swt.events.PaintEvent; | |
19 | import org.swtchart.IAxis; | |
20 | import org.swtchart.ICustomPaintListener; | |
21 | import org.swtchart.IPlotArea; | |
22 | ||
23 | /** | |
24 | * Class for providing selection of ranges with the left mouse button. | |
25 | * It also notifies the viewer about a change of selection. | |
26 | * | |
27 | * @author Bernd Hufmann | |
0b09e0cf BH |
28 | */ |
29 | public class TmfMouseSelectionProvider extends TmfBaseProvider implements MouseListener, MouseMoveListener, ICustomPaintListener { | |
30 | ||
31 | // ------------------------------------------------------------------------ | |
32 | // Attributes | |
33 | // ------------------------------------------------------------------------ | |
34 | /** Cached start time */ | |
35 | private long fBeginTime; | |
36 | /** Cached end time */ | |
37 | private long fEndTime; | |
38 | /** Flag indicating that an update is ongoing */ | |
39 | private boolean fIsInternalUpdate; | |
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40 | /** Flag indicating that the begin marker is dragged */ |
41 | private boolean fDragBeginMarker; | |
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42 | |
43 | // ------------------------------------------------------------------------ | |
44 | // Constructors | |
45 | // ------------------------------------------------------------------------ | |
46 | /** | |
47 | * Default constructor | |
48 | * | |
49 | * @param tmfChartViewer | |
50 | * The chart viewer reference. | |
51 | */ | |
52 | public TmfMouseSelectionProvider(ITmfChartTimeProvider tmfChartViewer) { | |
53 | super(tmfChartViewer); | |
54 | register(); | |
55 | } | |
56 | ||
57 | // ------------------------------------------------------------------------ | |
58 | // TmfBaseProvider | |
59 | // ------------------------------------------------------------------------ | |
60 | @Override | |
61 | public void register() { | |
62 | getChart().getPlotArea().addMouseListener(this); | |
63 | getChart().getPlotArea().addMouseMoveListener(this); | |
64 | ((IPlotArea) getChart().getPlotArea()).addCustomPaintListener(this); | |
65 | } | |
66 | ||
67 | @Override | |
68 | public void deregister() { | |
69 | if ((getChartViewer().getControl() != null) && !getChartViewer().getControl().isDisposed()) { | |
70 | getChart().getPlotArea().removeMouseListener(this); | |
71 | getChart().getPlotArea().removeMouseMoveListener(this); | |
72 | ((IPlotArea) getChart().getPlotArea()).removeCustomPaintListener(this); | |
73 | } | |
74 | } | |
75 | ||
76 | // ------------------------------------------------------------------------ | |
77 | // MouseListener | |
78 | // ------------------------------------------------------------------------ | |
79 | @Override | |
80 | public void mouseDoubleClick(MouseEvent e) { | |
81 | } | |
82 | ||
83 | @Override | |
84 | public void mouseDown(MouseEvent e) { | |
85 | if ((getChartViewer().getWindowDuration() != 0) && (e.button == 1)) { | |
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86 | fDragBeginMarker = false; |
87 | if (((e.stateMask & SWT.SHIFT) != SWT.SHIFT) || (fEndTime == fBeginTime)) { | |
88 | IAxis xAxis = getChart().getAxisSet().getXAxis(0); | |
89 | fBeginTime = limitXDataCoordinate(xAxis.getDataCoordinate(e.x)); | |
90 | fEndTime = fBeginTime; | |
91 | } else { | |
92 | long selectionBegin = fBeginTime; | |
93 | long selectionEnd = fEndTime; | |
94 | IAxis xAxis = getChart().getAxisSet().getXAxis(0); | |
95 | long time = limitXDataCoordinate(xAxis.getDataCoordinate(e.x)); | |
96 | if (Math.abs(time - selectionBegin) < Math.abs(time - selectionEnd)) { | |
97 | fDragBeginMarker = true; | |
98 | fBeginTime = time; | |
99 | fEndTime = selectionEnd; | |
100 | } else { | |
101 | fBeginTime = selectionBegin; | |
102 | fEndTime = time; | |
103 | } | |
104 | } | |
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105 | fIsInternalUpdate = true; |
106 | } | |
107 | } | |
108 | ||
109 | @Override | |
110 | public void mouseUp(MouseEvent e) { | |
111 | if (fIsInternalUpdate) { | |
112 | if (fBeginTime > fEndTime) { | |
113 | // Swap time | |
114 | long tmp = fBeginTime; | |
115 | fBeginTime = fEndTime; | |
116 | fEndTime = tmp; | |
117 | } | |
118 | ITmfChartTimeProvider viewer = getChartViewer(); | |
119 | viewer.updateSelectionRange(fBeginTime + viewer.getTimeOffset(), fEndTime + viewer.getTimeOffset()); | |
120 | fIsInternalUpdate = false; | |
121 | getChart().redraw(); | |
122 | } | |
123 | } | |
124 | ||
125 | // ------------------------------------------------------------------------ | |
126 | // MouseMoveListener | |
127 | // ------------------------------------------------------------------------ | |
128 | @Override | |
129 | public void mouseMove(MouseEvent e) { | |
130 | if (fIsInternalUpdate) { | |
131 | IAxis xAxis = getChart().getAxisSet().getXAxis(0); | |
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132 | if (fDragBeginMarker) { |
133 | fBeginTime = limitXDataCoordinate(xAxis.getDataCoordinate(e.x)); | |
134 | } else { | |
135 | fEndTime = limitXDataCoordinate(xAxis.getDataCoordinate(e.x)); | |
136 | } | |
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137 | getChart().redraw(); |
138 | } | |
139 | } | |
140 | ||
141 | // ------------------------------------------------------------------------ | |
142 | // ICustomPaintListener | |
143 | // ------------------------------------------------------------------------ | |
144 | @Override | |
145 | public void paintControl(PaintEvent e) { | |
146 | ITmfChartTimeProvider viewer = getChartViewer(); | |
147 | ||
148 | if (!fIsInternalUpdate) { | |
149 | fBeginTime = viewer.getSelectionBeginTime() - viewer.getTimeOffset(); | |
150 | fEndTime = viewer.getSelectionEndTime() - viewer.getTimeOffset(); | |
151 | } | |
152 | long windowStartTime = viewer.getWindowStartTime() - viewer.getTimeOffset(); | |
153 | long windowEndTime = viewer.getWindowEndTime() - viewer.getTimeOffset(); | |
154 | ||
155 | IAxis xAxis = getChart().getAxisSet().getXAxis(0); | |
156 | e.gc.setBackground(TmfXYChartViewer.getDisplay().getSystemColor(SWT.COLOR_BLUE)); | |
c85a741e GB |
157 | e.gc.setForeground(TmfXYChartViewer.getDisplay().getSystemColor(SWT.COLOR_BLUE)); |
158 | e.gc.setLineStyle(SWT.LINE_SOLID); | |
0b09e0cf BH |
159 | if ((fBeginTime >= windowStartTime) && (fBeginTime <= windowEndTime)) { |
160 | int beginX = xAxis.getPixelCoordinate(fBeginTime); | |
161 | e.gc.drawLine(beginX, 0, beginX, e.height); | |
162 | } | |
163 | ||
164 | if ((fEndTime >= windowStartTime) && (fEndTime <= windowEndTime) && (fBeginTime != fEndTime)) { | |
165 | int endX = xAxis.getPixelCoordinate(fEndTime); | |
166 | e.gc.drawLine(endX, 0, endX, e.height); | |
167 | } | |
168 | e.gc.setAlpha(150); | |
169 | if (Math.abs(fEndTime - fBeginTime) > 1) { | |
170 | e.gc.setBackground(TmfXYChartViewer.getDisplay().getSystemColor(SWT.COLOR_WIDGET_BACKGROUND)); | |
171 | int beginX = xAxis.getPixelCoordinate(fBeginTime); | |
172 | int endX = xAxis.getPixelCoordinate(fEndTime); | |
173 | if (fEndTime > fBeginTime) { | |
174 | e.gc.fillRectangle(beginX + 1, 0, endX - beginX - 1, e.height); | |
175 | } else { | |
176 | e.gc.fillRectangle(endX + 1, 0, beginX - endX - 1, e.height); | |
177 | } | |
178 | } | |
179 | } | |
180 | ||
181 | @Override | |
182 | public boolean drawBehindSeries() { | |
183 | return false; | |
184 | } | |
185 | } |