author | hgs |
Fri, 15 Oct 2010 12:29:39 +0300 | |
changeset 80 | d6dafc5d983f |
parent 72 | 1f0034e370aa |
permissions | -rw-r--r-- |
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Revision: v2.1.22
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/* |
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Revision: v2.1.22
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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Revision: v2.1.22
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* All rights reserved. |
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Revision: v2.1.22
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* This component and the accompanying materials are made available |
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Revision: v2.1.22
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* under the terms of "Eclipse Public License v1.0" |
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Revision: v2.1.22
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* which accompanies this distribution, and is available |
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Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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Revision: v2.1.22
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* |
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Revision: v2.1.22
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* Initial Contributors: |
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Revision: v2.1.22
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* Nokia Corporation - initial contribution. |
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Revision: v2.1.22
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* |
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* Contributors: |
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Revision: v2.1.22
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* |
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* Description: |
21
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Revision: v2.1.22
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* |
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Revision: v2.1.22
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*/ |
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Revision: v2.1.22
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package javax.microedition.lcdui; |
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|
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Revision: v2.1.22
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import org.eclipse.swt.SWT; |
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import org.eclipse.swt.graphics.Point; |
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Revision: v2.1.22
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import org.eclipse.swt.graphics.Rectangle; |
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Revision: v2.1.22
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import org.eclipse.swt.widgets.Composite; |
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Revision: v2.1.22
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import org.eclipse.swt.widgets.Event; |
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import org.eclipse.swt.widgets.Label; |
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import org.eclipse.swt.widgets.Layout; |
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import org.eclipse.swt.widgets.Listener; |
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import org.eclipse.swt.widgets.ScrollBar; |
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|
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/** |
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* Composite control which is able to scroll text with a vertical scroll bar. |
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Revision: v2.1.22
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*/ |
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class ScrolledTextComposite extends Composite |
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{ |
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|
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private Label iESWTTextLabel; |
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Revision: v2.1.22
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private ScrollBar vBar; |
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Revision: v2.1.22
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private boolean resizing; |
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private boolean iTextScrolling; |
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|
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/** |
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* Constructor. |
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*/ |
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public ScrolledTextComposite(Composite parent, ScrollBar vertBar) |
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{ |
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super(parent, 0); |
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vBar = vertBar; |
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vBar.setVisible(false); |
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vBar.setMaximum(0); |
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vBar.setThumb(0); |
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vBar.setSelection(0); |
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|
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vBar.addListener(SWT.Selection, new Listener() |
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{ |
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public void handleEvent(Event e) |
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{ |
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vScroll(); |
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} |
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}); |
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|
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addListener(SWT.Resize, new Listener() |
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{ |
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public void handleEvent(Event e) |
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{ |
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resize(); |
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} |
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}); |
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|
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iESWTTextLabel = new Label(this, SWT.WRAP); |
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iESWTTextLabel.setLocation(0, 0); |
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layout(); |
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|
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iESWTTextLabel.addListener(SWT.Resize, new Listener() |
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{ |
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public void handleEvent(Event e) |
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{ |
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if(e.type == SWT.Resize) |
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{ |
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resize(); |
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} |
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} |
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}); |
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} |
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|
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public void setText(String aText) |
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{ |
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iESWTTextLabel.setText(aText); |
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iESWTTextLabel.setSize(calculateTextSize()); |
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} |
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|
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private Point calculateTextSize() |
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{ |
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iTextScrolling = false; |
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vBar.setVisible(false); |
72 | 94 |
Point nextSize = iESWTTextLabel.computeSize(getParent().getClientArea().width, |
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SWT.DEFAULT); |
72 | 96 |
if(nextSize.y > getParent().getClientArea().height) |
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{ |
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iTextScrolling = true; |
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vBar.setVisible(true); |
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nextSize = iESWTTextLabel.computeSize(getClientArea().width, |
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SWT.DEFAULT); |
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Revision: v2.1.22
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|
102 |
} |
2a9601315dfc
Revision: v2.1.22
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parents:
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|
103 |
return nextSize; |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
104 |
} |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
105 |
|
2a9601315dfc
Revision: v2.1.22
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parents:
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|
106 |
/** |
2a9601315dfc
Revision: v2.1.22
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parents:
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|
107 |
* Return if the text is scrolling. The vBar.isVisible() is not good, |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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|
108 |
* because it depends on parent's visibility. |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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|
109 |
*/ |
23
98ccebc37403
Revision: v2.1.24
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diff
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|
110 |
public boolean isTextScrolling() |
98ccebc37403
Revision: v2.1.24
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21
diff
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|
111 |
{ |
21
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
112 |
return iTextScrolling; |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
113 |
} |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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|
114 |
|
23
98ccebc37403
Revision: v2.1.24
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diff
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115 |
public void setLayout(Layout layout) |
98ccebc37403
Revision: v2.1.24
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116 |
{ |
21
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
117 |
// do not allow a layout to be set |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
118 |
} |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
119 |
|
23
98ccebc37403
Revision: v2.1.24
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120 |
public void layout(boolean changed) |
98ccebc37403
Revision: v2.1.24
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diff
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121 |
{ |
21
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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122 |
iESWTTextLabel.setSize(calculateTextSize()); |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
123 |
|
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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124 |
Rectangle contentRect = iESWTTextLabel.getBounds(); |
72 | 125 |
Rectangle hostRect = getParent().getClientArea(); |
21
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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126 |
vBar.setMaximum(contentRect.height); |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
127 |
vBar.setThumb(Math.min(contentRect.height, hostRect.height)); |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
128 |
int vPage = contentRect.height - hostRect.height; |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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diff
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|
129 |
int vSelection = vBar.getSelection(); |
23
98ccebc37403
Revision: v2.1.24
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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diff
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|
130 |
if(vSelection >= vPage) |
98ccebc37403
Revision: v2.1.24
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diff
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|
131 |
{ |
98ccebc37403
Revision: v2.1.24
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diff
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|
132 |
if(vPage <= 0) |
98ccebc37403
Revision: v2.1.24
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21
diff
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|
133 |
{ |
21
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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|
134 |
vSelection = 0; |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
135 |
vBar.setSelection(0); |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
136 |
} |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
137 |
contentRect.y = -vSelection; |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
138 |
} |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
139 |
iESWTTextLabel.setLocation(contentRect.x, contentRect.y); |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
140 |
} |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
141 |
|
23
98ccebc37403
Revision: v2.1.24
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diff
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|
142 |
public Point computeSize(int wHint, int hHint, boolean changed) |
98ccebc37403
Revision: v2.1.24
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parents:
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diff
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|
143 |
{ |
21
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
144 |
Point size = iESWTTextLabel.computeSize(wHint, hHint, changed); |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
145 |
Rectangle trim = computeTrim(0, 0, size.x, size.y); |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
146 |
return new Point(trim.width, trim.height); |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
147 |
} |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
148 |
|
23
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Revision: v2.1.24
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diff
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|
149 |
public Point getOrigin() |
98ccebc37403
Revision: v2.1.24
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diff
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|
150 |
{ |
21
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
151 |
Point location = iESWTTextLabel.getLocation(); |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
152 |
return new Point(-location.x, -location.y); |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
153 |
} |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
154 |
|
23
98ccebc37403
Revision: v2.1.24
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diff
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|
155 |
public void setOrigin(Point origin) |
98ccebc37403
Revision: v2.1.24
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parents:
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diff
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|
156 |
{ |
21
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
157 |
setOrigin(origin.x, origin.y); |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
158 |
} |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
159 |
|
23
98ccebc37403
Revision: v2.1.24
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
21
diff
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|
160 |
public void setOrigin(int x, int y) |
98ccebc37403
Revision: v2.1.24
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parents:
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diff
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|
161 |
{ |
98ccebc37403
Revision: v2.1.24
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
21
diff
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|
162 |
if(iESWTTextLabel != null) |
98ccebc37403
Revision: v2.1.24
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
21
diff
changeset
|
163 |
{ |
21
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
164 |
vBar.setSelection(y); |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
165 |
iESWTTextLabel.setLocation(0, -vBar.getSelection()); |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
166 |
} |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
167 |
} |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
168 |
|
23
98ccebc37403
Revision: v2.1.24
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
21
diff
changeset
|
169 |
private void resize() |
98ccebc37403
Revision: v2.1.24
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
21
diff
changeset
|
170 |
{ |
98ccebc37403
Revision: v2.1.24
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
21
diff
changeset
|
171 |
if(!resizing) |
98ccebc37403
Revision: v2.1.24
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
21
diff
changeset
|
172 |
{ |
21
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
173 |
resizing = true; |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
174 |
layout(); |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
175 |
resizing = false; |
72 | 176 |
if((Display.getDisplay().getCurrent() instanceof Alert) && |
177 |
(isTextScrolling() == true)) |
|
178 |
{ |
|
179 |
Display.getDisplay().getCurrent().setCommandsVisibility(true); |
|
180 |
} |
|
21
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
181 |
} |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
182 |
} |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
183 |
|
23
98ccebc37403
Revision: v2.1.24
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
21
diff
changeset
|
184 |
private void vScroll() |
98ccebc37403
Revision: v2.1.24
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
21
diff
changeset
|
185 |
{ |
21
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
186 |
Point location = iESWTTextLabel.getLocation(); |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
187 |
int vSelection = vBar.getSelection(); |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
188 |
iESWTTextLabel.setLocation(location.x, -vSelection); |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
189 |
} |
2a9601315dfc
Revision: v2.1.22
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
190 |
} |