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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; | |
40 | ||
41 | // ------------------------------------------------------------------------ | |
42 | // Constructors | |
43 | // ------------------------------------------------------------------------ | |
44 | /** | |
45 | * Default constructor | |
46 | * | |
47 | * @param tmfChartViewer | |
48 | * The chart viewer reference. | |
49 | */ | |
50 | public TmfMouseSelectionProvider(ITmfChartTimeProvider tmfChartViewer) { | |
51 | super(tmfChartViewer); | |
52 | register(); | |
53 | } | |
54 | ||
55 | // ------------------------------------------------------------------------ | |
56 | // TmfBaseProvider | |
57 | // ------------------------------------------------------------------------ | |
58 | @Override | |
59 | public void register() { | |
60 | getChart().getPlotArea().addMouseListener(this); | |
61 | getChart().getPlotArea().addMouseMoveListener(this); | |
62 | ((IPlotArea) getChart().getPlotArea()).addCustomPaintListener(this); | |
63 | } | |
64 | ||
65 | @Override | |
66 | public void deregister() { | |
67 | if ((getChartViewer().getControl() != null) && !getChartViewer().getControl().isDisposed()) { | |
68 | getChart().getPlotArea().removeMouseListener(this); | |
69 | getChart().getPlotArea().removeMouseMoveListener(this); | |
70 | ((IPlotArea) getChart().getPlotArea()).removeCustomPaintListener(this); | |
71 | } | |
72 | } | |
73 | ||
74 | // ------------------------------------------------------------------------ | |
75 | // MouseListener | |
76 | // ------------------------------------------------------------------------ | |
77 | @Override | |
78 | public void mouseDoubleClick(MouseEvent e) { | |
79 | } | |
80 | ||
81 | @Override | |
82 | public void mouseDown(MouseEvent e) { | |
83 | if ((getChartViewer().getWindowDuration() != 0) && (e.button == 1)) { | |
84 | IAxis xAxis = getChart().getAxisSet().getXAxis(0); | |
85 | fBeginTime = limitXDataCoordinate(xAxis.getDataCoordinate(e.x)); | |
86 | fEndTime = fBeginTime; | |
87 | fIsInternalUpdate = true; | |
88 | } | |
89 | } | |
90 | ||
91 | @Override | |
92 | public void mouseUp(MouseEvent e) { | |
93 | if (fIsInternalUpdate) { | |
94 | if (fBeginTime > fEndTime) { | |
95 | // Swap time | |
96 | long tmp = fBeginTime; | |
97 | fBeginTime = fEndTime; | |
98 | fEndTime = tmp; | |
99 | } | |
100 | ITmfChartTimeProvider viewer = getChartViewer(); | |
101 | viewer.updateSelectionRange(fBeginTime + viewer.getTimeOffset(), fEndTime + viewer.getTimeOffset()); | |
102 | fIsInternalUpdate = false; | |
103 | getChart().redraw(); | |
104 | } | |
105 | } | |
106 | ||
107 | // ------------------------------------------------------------------------ | |
108 | // MouseMoveListener | |
109 | // ------------------------------------------------------------------------ | |
110 | @Override | |
111 | public void mouseMove(MouseEvent e) { | |
112 | if (fIsInternalUpdate) { | |
113 | IAxis xAxis = getChart().getAxisSet().getXAxis(0); | |
114 | fEndTime = limitXDataCoordinate(xAxis.getDataCoordinate(e.x)); | |
115 | getChart().redraw(); | |
116 | } | |
117 | } | |
118 | ||
119 | // ------------------------------------------------------------------------ | |
120 | // ICustomPaintListener | |
121 | // ------------------------------------------------------------------------ | |
122 | @Override | |
123 | public void paintControl(PaintEvent e) { | |
124 | ITmfChartTimeProvider viewer = getChartViewer(); | |
125 | ||
126 | if (!fIsInternalUpdate) { | |
127 | fBeginTime = viewer.getSelectionBeginTime() - viewer.getTimeOffset(); | |
128 | fEndTime = viewer.getSelectionEndTime() - viewer.getTimeOffset(); | |
129 | } | |
130 | long windowStartTime = viewer.getWindowStartTime() - viewer.getTimeOffset(); | |
131 | long windowEndTime = viewer.getWindowEndTime() - viewer.getTimeOffset(); | |
132 | ||
133 | IAxis xAxis = getChart().getAxisSet().getXAxis(0); | |
134 | e.gc.setBackground(TmfXYChartViewer.getDisplay().getSystemColor(SWT.COLOR_BLUE)); | |
c85a741e GB |
135 | e.gc.setForeground(TmfXYChartViewer.getDisplay().getSystemColor(SWT.COLOR_BLUE)); |
136 | e.gc.setLineStyle(SWT.LINE_SOLID); | |
0b09e0cf BH |
137 | if ((fBeginTime >= windowStartTime) && (fBeginTime <= windowEndTime)) { |
138 | int beginX = xAxis.getPixelCoordinate(fBeginTime); | |
139 | e.gc.drawLine(beginX, 0, beginX, e.height); | |
140 | } | |
141 | ||
142 | if ((fEndTime >= windowStartTime) && (fEndTime <= windowEndTime) && (fBeginTime != fEndTime)) { | |
143 | int endX = xAxis.getPixelCoordinate(fEndTime); | |
144 | e.gc.drawLine(endX, 0, endX, e.height); | |
145 | } | |
146 | e.gc.setAlpha(150); | |
147 | if (Math.abs(fEndTime - fBeginTime) > 1) { | |
148 | e.gc.setBackground(TmfXYChartViewer.getDisplay().getSystemColor(SWT.COLOR_WIDGET_BACKGROUND)); | |
149 | int beginX = xAxis.getPixelCoordinate(fBeginTime); | |
150 | int endX = xAxis.getPixelCoordinate(fEndTime); | |
151 | if (fEndTime > fBeginTime) { | |
152 | e.gc.fillRectangle(beginX + 1, 0, endX - beginX - 1, e.height); | |
153 | } else { | |
154 | e.gc.fillRectangle(endX + 1, 0, beginX - endX - 1, e.height); | |
155 | } | |
156 | } | |
157 | } | |
158 | ||
159 | @Override | |
160 | public boolean drawBehindSeries() { | |
161 | return false; | |
162 | } | |
163 | } |