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Archived:Handle change in screen orientation in Qt

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m (Add Abstract. Point to correct Qt SDK)
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[[Category:Qt]][[Category:UI]]
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[[Category:PIM]][[Category:Symbian C++]]
{{ReviewerApproved}}
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{{ReviewerApproved|timestamp=20090916}}
  
 
{{CodeSnippet
 
{{CodeSnippet
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==Overview==
 
==Overview==
  
This code snippets shows how to get notification screen mode from portrait to landscape and vise-versa. Sometime we need to resize our custom control with change in screen mode. Basically QWidget::resizeEvent() get called when user change screen mode, so you have to implement that virtual method in your class.
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{{Abstract|visible=true|This code example shows how to get notification when the screen mode changes using [http://doc.qt.nokia.com/stable/qwidget.html#resizeEvent QWidget::resizeEvent()]. This method gets called when the screen mode changes, so you have to implement that virtual method in your class.}}
  
This snippet can be self-signed. As it does not use any API which require developer/symbian signed certificate.
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This snippet can be self-signed.
  
 
==Preconditions==
 
==Preconditions==
  
* Download and Install latest version [[Qt for Symbian - Installation packages]] which has links on how to install the latest version
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* Download and install the [[Qt SDK]]
 
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==Source==
 
==Source==
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==Download Code Example==
 
==Download Code Example==
  
* The [[Media:QtResizeEvent.zip|Code Example]] show new screen size when user change screen mode. This example is tested on Nokia 5800 XpressMusic.
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* [[File:QtResizeEvent.zip]] shows new screen size when user change screen mode. This example is tested on Nokia 5800 XpressMusic.
 
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Revision as of 03:34, 26 April 2011

{{{width}}}
16 Sep
2009
Article Metadata
Tested with
Devices(s): Nokia 5800 XpressMusic
Compatibility
Platform(s): S60 3rd Edition, FP1, FP2
S60 5th Edition
Symbian
Article
Keywords: QWidget::resizeEvent()
Created: (26 Jun 2009)
Last edited: hamishwillee (26 Apr 2011)

Contents

Overview

This code example shows how to get notification when the screen mode changes using QWidget::resizeEvent(). This method gets called when the screen mode changes, so you have to implement that virtual method in your class.

This snippet can be self-signed.

Preconditions

  • Download and install the Qt SDK

Source

//resizeEvent() method get called when user change screen mode.
void ResizeEvent::resizeEvent (QResizeEvent* event)
{
QSize widgetSize = event->size();
//Resize your custom control according to new size.
QMainWindow::resizeEvent(event);
}

Postconditions

The code snippet is expected to notify change in screen mode.

Normal screen

ResizeEvent2.JPG

Screen after changing mode to portrait

ResizeEvent1.JPG

Related link

Download Code Example

  • File:QtResizeEvent.zip shows new screen size when user change screen mode. This example is tested on Nokia 5800 XpressMusic.


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