Archived:Painting only the dirty area of the widget in Qt - Revision history

Hamishwillee: Text replace - "`" to ""`


2012-10-11T01:14:52Z
Text replace - "<code cpp>" to "<code cpp-qt>"

			
			
			
			
		
		← Older revision
		Revision as of 01:14, 11 October 2012
		
Line 44:
Line 44:
  ==Header==   ==Header==
    
− <code cpp> + <code cpp-qt>
  #include <QtGui>   #include <QtGui>
    
Line 81:
Line 81:
  ==Source==   ==Source==
    
− <code cpp> + <code cpp-qt>
  Widget::Widget(QWidget *parent) :   Widget::Widget(QWidget *parent) :
       QWidget(parent)        QWidget(parent)



Hamishwillee: Text replace - "Category:MeeGo" to "Category:MeeGo Harmattan"
2012-06-13T10:59:23Z
Text replace - "Category:MeeGo" to "Category:MeeGo Harmattan"

			
			
			
			
		
		← Older revision
		Revision as of 10:59, 13 June 2012
		
Line 209:
Line 209:
  * [http://doc.trolltech.com/4.5/qpainter.html QPainter]   * [http://doc.trolltech.com/4.5/qpainter.html QPainter]
    
− [[Category:Qt C++ UI]][[Category:Code Snippet]][[Category: UI]][[Category:Code Snippet]][[Category:MeeGo]] [[Category:Symbian]] + [[Category:Qt C++ UI]][[Category:Code Snippet]][[Category: UI]][[Category:Code Snippet]][[Category:MeeGo Harmattan]] [[Category:Symbian]]



Hamishwillee: moved CS001516 - Painting only the dirty area of the widget in Qt to Archived:Painting only the dirty area of the widget in Qt
2012-06-13T04:42:59Z
moved CS001516 - Painting only the dirty area of the widget in Qt to Archived:Painting only the dirty area of the widget in Qt

		
		← Older revision
		Revision as of 04:42, 13 June 2012
		


Hamishwillee: Hamishwillee - Bot update - Merge KB into wiki
2012-06-13T04:42:52Z
Hamishwillee - Bot update - Merge KB into wiki

			
			
			
			
		
		← Older revision
		Revision as of 04:42, 13 June 2012
		
Line 1:
Line 1:
− {{KBCS}} + {{Archived|timestamp=20120613044252|user=[[User:Hamishwillee|&lt;br /&gt;----]]|[[:Category:Qt Quick|Qt Quick]] should be used for all UI development on mobile devices. The approach described in this article (using C++ for the Qt app UI) is deprecated.}}
− {{ArticleMetaData + {{ArticleMetaData <!-- v1.2 -->
− |id=CS001516 + 
− |platform=Qt + 
− |devices=Nokia 5800 XpressMusic, Nokia N900 + 
− |category=Qt + 
− |subcategory=UI + 
− |creationdate=November 25, 2009 + 
− |keywords=WA_OpaquePaintEvent, QPainter::setClipRegion() + 
−   + 
  |sourcecode= <!-- Link to example source code (e.g. [[Media:The Code Example ZIP.zip]]) -->   |sourcecode= <!-- Link to example source code (e.g. [[Media:The Code Example ZIP.zip]]) -->
  |installfile= <!-- Link to installation file (e.g. [[Media:The Installation File.sis]]) -->   |installfile= <!-- Link to installation file (e.g. [[Media:The Installation File.sis]]) -->
− |sdk=<!-- SDK(s) built and tested against (e.g. [http://linktosdkdownload/ Nokia Qt SDK 1.1]) --> + |devices= Nokia 5800 XpressMusic, Nokia N900
− |devicecompatability=<!-- Compatible devices (e.g.: All* (must have GPS) ) --> + |sdk= <!-- SDK(s) built and tested against (e.g. [http://linktosdkdownload/ Nokia Qt SDK 1.1]) -->
− |signing=<!-- Empty or one of Self-Signed, DevCert, Manufacturer --> + |platform= Qt
− |capabilities=<!-- Capabilities required (e.g. Location, NetworkServices.) --> + |devicecompatability= <!-- Compatible devices (e.g.: All* (must have GPS) ) -->
− |author=[[User:Tepaa]] + |dependencies= <!-- Any other/external dependencies e.g.: Google Maps Api v1.0 -->
  + |signing= <!-- Empty or one of Self-Signed, DevCert, Manufacturer -->
  + |capabilities= <!-- Capabilities required by the article/code example (e.g. Location, NetworkServices. -->
  + |keywords= WA_OpaquePaintEvent, QPainter::setClipRegion()
  + |language= <!-- Language category code for non-English topics - e.g. Lang-Chinese -->
  + |translated-by= <!-- [[User:XXXX]] -->
  + |translated-from-title= <!-- Title only -->
  + |translated-from-id= <!-- Id of translated revision -->
  + |review-by= <!-- After re-review: [[User:username]] -->
  + |review-timestamp= <!-- After re-review: YYYYMMDD -->
  + |update-by= <!-- After significant update: [[User:username]]-->
  + |update-timestamp= <!-- After significant update: YYYYMMDD -->
  + |creationdate= 20091020
  + |author= [[User:Tepaa]]
  + <!-- The following are not in current metadata -->
  + |subcategory= UI
  + |id= CS001516
  }}   }}
    
Line 22:
Line 30:
  This example shows how to paint only the area of the widget whose content has been marked as invalid and needs to be updated. This will speed up the updating of the screen.   This example shows how to paint only the area of the widget whose content has been marked as invalid and needs to be updated. This will speed up the updating of the screen.
    
− When the user draws a line using the stylus on the screen, the line is first painted into a <tt>QPixmap</tt> picture and then the picture is updated to the screen. The application only updates the dirty area of the picture. + When the user draws a line using the stylus on the screen, the line is first painted into a {{Icode|QPixmap}} picture and then the picture is updated to the screen. The application only updates the dirty area of the picture.
    
− Dirty area painting can be handled by setting the <tt>Qt::WA_OpaquePaintEvent</tt> attribute of the widget as <tt>true</tt> and defining the dirty rect to <tt>QPainter</tt> with <tt>QPainter::setClipRegion()</tt>. + Dirty area painting can be handled by setting the {{Icode|Qt::WA_OpaquePaintEvent}} attribute of the widget as {{Icode|true}} and defining the dirty rect to {{Icode|QPainter}} with {{Icode|QPainter::setClipRegion()}}.
    
    
Line 30:
Line 38:
    
  * Qt is installed on your platform.   * Qt is installed on your platform.
− ** Download Qt for Symbian release from here: [http://qt.nokia.com/downloads] + ** Download Qt release from here: [http://qt.nokia.com/downloads]
  ** Qt on Maemo can be found here: [http://qt4.garage.maemo.org/ Qt4 Maemo port]   ** Qt on Maemo can be found here: [http://qt4.garage.maemo.org/ Qt4 Maemo port]
    
Line 201:
Line 209:
  * [http://doc.trolltech.com/4.5/qpainter.html QPainter]   * [http://doc.trolltech.com/4.5/qpainter.html QPainter]
    
− [[Category:Qt]][[Category:Code Examples]][[Category: UI]][[Category:Code Snippet]][[Category:MeeGo]] [[Category:Symbian]] + [[Category:Qt C++ UI]][[Category:Code Snippet]][[Category: UI]][[Category:Code Snippet]][[Category:MeeGo]] [[Category:Symbian]]



Hamishwillee: Removed protection from "CS001516 - Painting only the dirty area of the widget in Qt"
2012-06-13T04:42:40Z
Removed protection from "CS001516 - Painting only the dirty area of the widget in Qt"

		
		← Older revision
		Revision as of 04:42, 13 June 2012
		


Hamishwillee: Hamishwillee - Addition to article of: Category:MeeGo Category:Symbian. (Add platform categories)
2012-02-15T05:48:42Z
Hamishwillee - Addition to article of: Category:MeeGo Category:Symbian. (Add platform categories)

			
			
			
			
		
		← Older revision
		Revision as of 05:48, 15 February 2012
		
Line 201:
Line 201:
  * [http://doc.trolltech.com/4.5/qpainter.html QPainter]   * [http://doc.trolltech.com/4.5/qpainter.html QPainter]
    
− [[Category:Qt]][[Category:Code Examples]][[Category: UI]][[Category:Code Snippet]] + [[Category:Qt]][[Category:Code Examples]][[Category: UI]][[Category:Code Snippet]][[Category:MeeGo]] [[Category:Symbian]]



Hamishwillee: Hamishwillee - Bot change of template (Template:CodeSnippet) - now using Template:ArticleMetaData
2011-06-24T09:14:52Z
Hamishwillee - Bot change of template (Template:CodeSnippet) - now using Template:ArticleMetaData

			
			
			
			
		
		← Older revision
		Revision as of 09:14, 24 June 2011
		
Line 1:
Line 1:
  {{KBCS}}   {{KBCS}}
− {{CodeSnippet + {{ArticleMetaData
  |id=CS001516   |id=CS001516
  |platform=Qt   |platform=Qt
Line 8:
Line 8:
  |creationdate=November 25, 2009   |creationdate=November 25, 2009
  |keywords=WA_OpaquePaintEvent, QPainter::setClipRegion()   |keywords=WA_OpaquePaintEvent, QPainter::setClipRegion()
  + 
  + |sourcecode= <!-- Link to example source code (e.g. [[Media:The Code Example ZIP.zip]]) -->
  + |installfile= <!-- Link to installation file (e.g. [[Media:The Installation File.sis]]) -->
  + |sdk=<!-- SDK(s) built and tested against (e.g. [http://linktosdkdownload/ Nokia Qt SDK 1.1]) -->
  + |devicecompatability=<!-- Compatible devices (e.g.: All* (must have GPS) ) -->
  + |signing=<!-- Empty or one of Self-Signed, DevCert, Manufacturer -->
  + |capabilities=<!-- Capabilities required (e.g. Location, NetworkServices.) -->
  + |author=[[User:Tepaa]]
  }}   }}
    



Tanjaluodes at 12:58, 13 January 2010
2010-01-13T12:58:32Z


			
			
			
			
		
		← Older revision
		Revision as of 12:58, 13 January 2010
		
Line 193:
Line 193:
  * [http://doc.trolltech.com/4.5/qpainter.html QPainter]   * [http://doc.trolltech.com/4.5/qpainter.html QPainter]
    
− [[Category:Qt]][[Category:Code Examples]][[Category: UI]] + [[Category:Qt]][[Category:Code Examples]][[Category: UI]][[Category:Code Snippet]]




Copyeditor: Protected "CS001516 - Painting only the dirty area of the widget in Qt" ([edit=sysop] (indefinite) [move=sysop] (indefinite))
2009-11-25T14:36:37Z
Protected "CS001516 - Painting only the dirty area of the widget in Qt" ([edit=sysop] (indefinite) [move=sysop] (indefinite))

		
		← Older revision
		Revision as of 14:36, 25 November 2009
		


Copyeditor: moved Tools:Painting only dirty area of the widget in Qt to CS001516 - Painting only the dirty area of the widget in Qt
2009-11-25T14:36:27Z
moved Tools:Painting only dirty area of the widget in Qt to CS001516 - Painting only the dirty area of the widget in Qt

		
		← Older revision
		Revision as of 14:36, 25 November 2009

← Older revision		Revision as of 10:59, 13 June 2012
Line 209:		Line 209:
	* [http://doc.trolltech.com/4.5/qpainter.html QPainter]		* [http://doc.trolltech.com/4.5/qpainter.html QPainter]

−	[[Category:Qt C++ UI]][[Category:Code Snippet]][[Category: UI]][[Category:Code Snippet]][[Category:MeeGo]] [[Category:Symbian]]	+	[[Category:Qt C++ UI]][[Category:Code Snippet]][[Category: UI]][[Category:Code Snippet]][[Category:MeeGo Harmattan]] [[Category:Symbian]]

← Older revision		Revision as of 05:48, 15 February 2012
Line 201:		Line 201:
	* [http://doc.trolltech.com/4.5/qpainter.html QPainter]		* [http://doc.trolltech.com/4.5/qpainter.html QPainter]

−	[[Category:Qt]][[Category:Code Examples]][[Category: UI]][[Category:Code Snippet]]	+	[[Category:Qt]][[Category:Code Examples]][[Category: UI]][[Category:Code Snippet]][[Category:MeeGo]] [[Category:Symbian]]

← Older revision		Revision as of 12:58, 13 January 2010
Line 193:		Line 193:
	* [http://doc.trolltech.com/4.5/qpainter.html QPainter]		* [http://doc.trolltech.com/4.5/qpainter.html QPainter]

−	[[Category:Qt]][[Category:Code Examples]][[Category: UI]]	+	[[Category:Qt]][[Category:Code Examples]][[Category: UI]][[Category:Code Snippet]]

Archived:Painting only the dirty area of the widget in Qt - Revision history

Hamishwillee: Text replace - "" to ""

Hamishwillee: Text replace - "Category:MeeGo" to "Category:MeeGo Harmattan"

Hamishwillee: moved CS001516 - Painting only the dirty area of the widget in Qt to Archived:Painting only the dirty area of the widget in Qt

Hamishwillee: Hamishwillee - Bot update - Merge KB into wiki

Hamishwillee: Removed protection from "CS001516 - Painting only the dirty area of the widget in Qt"

Hamishwillee: Hamishwillee - Addition to article of: Category:MeeGo Category:Symbian. (Add platform categories)

Hamishwillee: Hamishwillee - Bot change of template (Template:CodeSnippet) - now using Template:ArticleMetaData

Tanjaluodes at 12:58, 13 January 2010

Copyeditor: Protected "CS001516 - Painting only the dirty area of the widget in Qt" ([edit=sysop] (indefinite) [move=sysop] (indefinite))

Copyeditor: moved Tools:Painting only dirty area of the widget in Qt to CS001516 - Painting only the dirty area of the widget in Qt

Hamishwillee: Text replace - "`" to ""`