1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
/*******************************************************************************
* Copyright (c) 2009, 2010 Tasktop Technologies and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Tasktop Technologies - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.internal.p2.ui.discovery.wizards;
import java.net.URL;
import org.eclipse.core.runtime.Assert;
import org.eclipse.equinox.internal.p2.discovery.AbstractCatalogSource;
import org.eclipse.equinox.internal.p2.discovery.model.Overview;
import org.eclipse.equinox.internal.p2.ui.discovery.util.GradientToolTip;
import org.eclipse.equinox.internal.p2.ui.discovery.util.WorkbenchUtil;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.window.ToolTip;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.events.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.*;
import org.eclipse.ui.browser.IWorkbenchBrowserSupport;
/**
* @author David Green
*/
class OverviewToolTip extends GradientToolTip {
private final Overview overview;
private final AbstractCatalogSource source;
private final Control parent;
private final Image leftImage;
public OverviewToolTip(Control control, AbstractCatalogSource source, Overview overview, Image leftImage) {
super(control, ToolTip.RECREATE, true);
Assert.isNotNull(source);
Assert.isNotNull(overview);
this.parent = control;
this.source = source;
this.overview = overview;
this.leftImage = leftImage;
setHideOnMouseDown(false); // required for links to work
}
@Override
protected Composite createToolTipArea(Event event, final Composite parent) {
GridLayoutFactory.fillDefaults().applyTo(parent);
Composite container = new Composite(parent, SWT.NULL);
container.setBackground(null);
Image image = null;
if (overview.getScreenshot() != null) {
image = computeImage(source, overview.getScreenshot());
if (image != null) {
final Image fimage = image;
container.addDisposeListener(new DisposeListener() {
public void widgetDisposed(DisposeEvent e) {
fimage.dispose();
}
});
}
}
final boolean hasLearnMoreLink = overview.getUrl() != null && overview.getUrl().length() > 0;
final int borderWidth = 1;
final int fixedImageHeight = 240;
final int fixedImageWidth = 320;
final int heightHint = fixedImageHeight + (borderWidth * 2);
final int widthHint = fixedImageWidth;
final int containerWidthHintWithImage = 650;
final int containerWidthHintWithoutImage = 500;
GridDataFactory.fillDefaults().grab(true, true).hint(image == null ? containerWidthHintWithoutImage : containerWidthHintWithImage, SWT.DEFAULT).applyTo(container);
GridLayoutFactory.fillDefaults().numColumns((leftImage != null) ? 3 : 2).margins(5, 5).spacing(3, 0).applyTo(container);
if (leftImage != null) {
Label imageLabel = new Label(container, SWT.NONE);
imageLabel.setImage(leftImage);
int imageWidthHint = leftImage.getBounds().width + 5;
GridDataFactory.fillDefaults().align(SWT.BEGINNING, SWT.BEGINNING).hint(imageWidthHint, SWT.DEFAULT).applyTo(imageLabel);
}
String summary = overview.getSummary();
Composite summaryContainer = new Composite(container, SWT.NULL);
summaryContainer.setBackground(null);
GridLayoutFactory.fillDefaults().applyTo(summaryContainer);
GridDataFactory gridDataFactory = GridDataFactory.fillDefaults().grab(true, true).span(image == null ? 2 : 1, 1);
if (image != null) {
gridDataFactory.hint(widthHint, heightHint);
}
gridDataFactory.applyTo(summaryContainer);
StyledText summaryLabel = new StyledText(summaryContainer, SWT.WRAP | SWT.READ_ONLY | SWT.NO_FOCUS);
summaryLabel.setText(summary);
Point size = summaryLabel.computeSize(widthHint, SWT.DEFAULT);
if (size.y > heightHint - 20) {
summaryLabel.dispose();
summaryLabel = new StyledText(summaryContainer, SWT.WRAP | SWT.READ_ONLY | SWT.NO_FOCUS | SWT.V_SCROLL);
summaryLabel.setText(summary);
}
summaryLabel.setBackground(null);
GridDataFactory.fillDefaults().grab(true, true).align(SWT.BEGINNING, SWT.BEGINNING).applyTo(summaryLabel);
if (image != null) {
final Composite imageContainer = new Composite(container, SWT.BORDER);
GridLayoutFactory.fillDefaults().applyTo(imageContainer);
GridDataFactory.fillDefaults().grab(false, false).align(SWT.CENTER, SWT.BEGINNING).hint(widthHint + (borderWidth * 2), heightHint).applyTo(imageContainer);
Label imageLabel = new Label(imageContainer, SWT.NULL);
GridDataFactory.fillDefaults().hint(widthHint, fixedImageHeight).indent(borderWidth, borderWidth).applyTo(imageLabel);
imageLabel.setImage(image);
imageLabel.setBackground(null);
imageLabel.setSize(widthHint, fixedImageHeight);
// creates a border
imageContainer.setBackground(parent.getDisplay().getSystemColor(SWT.COLOR_BLACK));
}
if (hasLearnMoreLink) {
Link link = new Link(summaryContainer, SWT.NULL);
GridDataFactory.fillDefaults().grab(false, false).align(SWT.BEGINNING, SWT.CENTER).applyTo(link);
link.setText(Messages.ConnectorDescriptorToolTip_detailsLink);
link.setBackground(null);
link.setToolTipText(NLS.bind(Messages.ConnectorDescriptorToolTip_detailsLink_tooltip, overview.getUrl()));
link.addSelectionListener(new SelectionListener() {
public void widgetSelected(SelectionEvent e) {
WorkbenchUtil.openUrl(overview.getUrl(), IWorkbenchBrowserSupport.AS_EXTERNAL);
}
public void widgetDefaultSelected(SelectionEvent e) {
widgetSelected(e);
}
});
}
if (image == null) {
// prevent overviews with no image from providing unlimited text.
Point optimalSize = summaryContainer.computeSize(SWT.DEFAULT, SWT.DEFAULT, true);
if (optimalSize.y > (heightHint + 10)) {
((GridData) summaryContainer.getLayoutData()).heightHint = heightHint;
container.layout(true);
}
}
// hack: cause the tooltip to gain focus so that we can capture the escape key
// this must be done async since the tooltip is not yet visible.
Display.getCurrent().asyncExec(new Runnable() {
public void run() {
if (!parent.isDisposed()) {
parent.setFocus();
}
}
});
return container;
}
private Image computeImage(AbstractCatalogSource discoverySource, String imagePath) {
URL resource = discoverySource.getResource(imagePath);
if (resource != null) {
ImageDescriptor descriptor = ImageDescriptor.createFromURL(resource);
Image image = descriptor.createImage();
return image;
}
return null;
}
public void show(Control titleControl) {
Point titleAbsLocation = titleControl.getParent().toDisplay(titleControl.getLocation());
Point containerAbsLocation = parent.getParent().toDisplay(parent.getLocation());
Rectangle bounds = titleControl.getBounds();
int relativeX = titleAbsLocation.x - containerAbsLocation.x;
int relativeY = titleAbsLocation.y - containerAbsLocation.y;
relativeY += bounds.height + 3;
show(new Point(relativeX, relativeY));
}
}
|
