blob: 0d3e90bdb84ffdf28e49670958b1afd42a45c832 (
plain) (
blame)
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
|
/*******************************************************************************
* Copyright (c) 2018 Angelo ZERR.
* 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:
* Angelo Zerr <angelo.zerr@gmail.com> - [minimap] Initialize minimap view - Bug 535450
*******************************************************************************/
package org.eclipse.ui.internal.views.minimap;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.jface.dialogs.IPageChangedListener;
import org.eclipse.ui.part.MultiPageEditorPart;
import org.eclipse.ui.part.Page;
import org.eclipse.ui.part.PageBook;
import org.eclipse.ui.texteditor.ITextEditor;
/**
* Minimap with multi page editor which shows a minimap for the current page
* which is an {@link ITextEditor}.
*
*/
public class MultiPageMinimapPage extends Page {
private final MultiPageEditorPart fMultiPageEditor;
private final Map<Object, Control> fTextWidgetMap;
private final IPageChangedListener fPageChangedListener;
private PageBook fPageBook;
private Label fErrorLabel;
public MultiPageMinimapPage(MultiPageEditorPart multiPageEditor) {
this.fMultiPageEditor = multiPageEditor;
this.fTextWidgetMap = new HashMap<>();
this.fPageChangedListener = e -> {
Object selectedPage = multiPageEditor.getSelectedPage();
// Find from cache the minimap for the selected page
Control textWidget = fTextWidgetMap.get(selectedPage);
if (textWidget != null) {
fPageBook.showPage(textWidget);
return;
}
MinimapPage minimapPage = null;
if (selectedPage instanceof ITextEditor) {
// Create and show a minimap page for the given text editor page
ITextEditor textEditor = (ITextEditor) selectedPage;
minimapPage = MinimapPage.createMinimapPage(textEditor);
}
if (minimapPage != null) {
minimapPage.createControl(fPageBook);
textWidget = minimapPage.getControl();
fTextWidgetMap.put(selectedPage, textWidget);
fPageBook.showPage(textWidget);
} else {
fTextWidgetMap.put(selectedPage, fErrorLabel);
fPageBook.showPage(fErrorLabel);
}
};
multiPageEditor.addPageChangedListener(fPageChangedListener);
}
@Override
public void createControl(Composite parent) {
fPageBook = new PageBook(parent, SWT.NORMAL);
fErrorLabel = new Label(fPageBook, SWT.NORMAL);
fErrorLabel.setText(MinimapMessages.MinimapViewNoMinimap);
fPageChangedListener.pageChanged(null);
}
@Override
public Control getControl() {
return fPageBook;
}
@Override
public void setFocus() {
fPageBook.setFocus();
}
@Override
public void dispose() {
super.dispose();
fMultiPageEditor.removePageChangedListener(fPageChangedListener);
}
}
|
