Handling right button clicks using Qt - Revision history

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


2012-10-11T01:17:02Z
Text replace - "<code cpp>" to "<code cpp-qt>"

			
			
			
			
		
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		Revision as of 01:17, 11 October 2012
		
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  '''rcqlistwidget.h'''   '''rcqlistwidget.h'''
    
− <code cpp> + <code cpp-qt>
  #ifndef RCQLISTWIDGET_H   #ifndef RCQLISTWIDGET_H
  #define RCQLISTWIDGET_H   #define RCQLISTWIDGET_H
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  '''rcqlistwidget.cpp'''   '''rcqlistwidget.cpp'''
    
− <code cpp> + <code cpp-qt>
  #include "rcqlistwidget.h"   #include "rcqlistwidget.h"
  #include <QMouseEvent>   #include <QMouseEvent>
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  '''rceventhandler.h'''   '''rceventhandler.h'''
    
− <code cpp> + <code cpp-qt>
  #ifndef RCEVENTHANDLER_H   #ifndef RCEVENTHANDLER_H
  #define RCEVENTHANDLER_H   #define RCEVENTHANDLER_H
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  '''rceventhandler.cpp'''   '''rceventhandler.cpp'''
    
− <code cpp> + <code cpp-qt>
  #include "rceventhandler.h"   #include "rceventhandler.h"
  #include <QContextMenuEvent>   #include <QContextMenuEvent>
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  In your main application, create an object from this class and use it as a parameter when calling '''installEventFilter''' method, as in the next code snippet. In this example, only the list widget was used but it is possible to add more object to the event handler.     In your main application, create an object from this class and use it as a parameter when calling '''installEventFilter''' method, as in the next code snippet. In this example, only the list widget was used but it is possible to add more object to the event handler.  
    
− <code cpp> + <code cpp-qt>
  RightClick::RightClick(QWidget *parent) : QMainWindow(parent), ui(new Ui::RightClick)   RightClick::RightClick(QWidget *parent) : QMainWindow(parent), ui(new Ui::RightClick)
  {   {



Hamishwillee: Hamishwillee - Bot update - Add ArticleMetaData
2012-07-23T11:05:27Z
Hamishwillee - Bot update - Add ArticleMetaData

			
			
			
			
		
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		Revision as of 11:05, 23 July 2012
		
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  {{ArticleMetaData <!-- v1.2 -->   {{ArticleMetaData <!-- v1.2 -->
− |sourcecode= [[Media:MBA right click 2.zip]] [[Media:MBA right click 1.zip]]   + |sourcecode= [[Media:MBA right click 2.zip]] [[Media:MBA right click 1.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]]) -->
  |devices= <!-- Devices tested against - e.g. ''devices=Nokia 6131 NFC, Nokia C7-00'') -->   |devices= <!-- Devices tested against - e.g. ''devices=Nokia 6131 NFC, Nokia C7-00'') -->




Hamishwillee: Hamishwillee - Bot update - Add ArticleMetaData
2012-07-23T06:18:53Z
Hamishwillee - Bot update - Add ArticleMetaData

			
			
			
			
		
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		Revision as of 06:18, 23 July 2012
		
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  + {{ArticleMetaData <!-- v1.2 -->
  + |sourcecode= [[Media:MBA right click 2.zip]] [[Media:MBA right click 1.zip]] 
  + |installfile= <!-- Link to installation file (e.g. [[Media:The Installation File.sis]]) -->
  + |devices= <!-- Devices tested against - e.g. ''devices=Nokia 6131 NFC, Nokia C7-00'') -->
  + |sdk= <!-- SDK(s) built and tested against (e.g. [http://linktosdkdownload/ Qt SDK 1.1.4]) -->
  + |platform= <!-- Compatible platforms - e.g. Symbian^1 and later, Qt 4.6 and later -->
  + |devicecompatability= <!-- Compatible devices e.g.: All* (must have internal GPS) -->
  + |dependencies= <!-- Any other/external dependencies e.g.: Google Maps Api v1.0 -->
  + |signing= <!-- Signing requirements - empty or one of: Self-Signed, DevCert, Manufacturer -->
  + |capabilities= <!-- Capabilities required by the article/code example (e.g. Location, NetworkServices. -->
  + |keywords= <!-- APIs, classes and methods (e.g. QSystemScreenSaver, QList, CBase -->
  + |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= 20100122
  + |author= [[User:Marcelobarrosalmeida]]
  + }}
  [[Category:Maemo]][[Category:Qt]]   [[Category:Maemo]][[Category:Qt]]
  {{Abstract|This article discusses two strategies for handling right button clicks using Qt: the first and simplest being to implement the {{Icode|QObject}} virtual method {{Icode|eventFilter}}, the second being to create a generic event handler for your objects.}} The article covers both strategies and provides working code snippets. It is possible to apply these techniques to Maemo or PC programs, without modifications. However, in Maemo programs it is necessary to press and hold the screen for some instants in order to generate the right click event since a mouse is not available.   {{Abstract|This article discusses two strategies for handling right button clicks using Qt: the first and simplest being to implement the {{Icode|QObject}} virtual method {{Icode|eventFilter}}, the second being to create a generic event handler for your objects.}} The article covers both strategies and provides working code snippets. It is possible to apply these techniques to Maemo or PC programs, without modifications. However, in Maemo programs it is necessary to press and hold the screen for some instants in order to generate the right click event since a mouse is not available.
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  When the right button is clicked (or long press in Maemo), the menu is displayed, as showed in the following screenshots:   When the right button is clicked (or long press in Maemo), the menu is displayed, as showed in the following screenshots:
    
− [[Image:MBA_app_maemo_rc1.png|400px|Screeenshot]] [[Image:MBA_app_maemo_rc2.png|400px|Screeenshot]] + [[File:MBA app maemo rc1.png|400px|Screeenshot]] [[File:MBA app maemo rc2.png|400px|Screeenshot]]
    
  === Using Qt Creator UI designer ===   === Using Qt Creator UI designer ===
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  If you want to design your interface using Qt Creator you need to change the base class for the desired components. Click over the component and select "Promote to", type the base class name and press "Add", as indicated in the next picture.   If you want to design your interface using Qt Creator you need to change the base class for the desired components. Click over the component and select "Promote to", type the base class name and press "Add", as indicated in the next picture.
    
− [[Image:MBA_promote_to.png|800px|Screeenshot]] + [[File:MBA promote to.png|800px|Screeenshot]]
    
  == Right click by generic event handler ==   == Right click by generic event handler ==
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  The result is the same, as you can see in the next screenshot taken from Linux desktop.   The result is the same, as you can see in the next screenshot taken from Linux desktop.
    
− [[Image:MBA_app_pc_rc.png|400px|Screeenshot]] + [[File:MBA app pc rc.png|400px|Screeenshot]]
    
  == Source code ==   == Source code ==
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  The two strategies were tested using the next two examples. It was used Qt Creator 4.6.1.   The two strategies were tested using the next two examples. It was used Qt Creator 4.6.1.
    
− * [[Media:MBA_right_click_1.zip|First strategy]]. + * [[Media:MBA right click 1.zip|First strategy]].
− * [[Media:MBA_right_click_2.zip|Second strategy]]. + * [[Media:MBA right click 2.zip|Second strategy]].
    
  [[Category:Code Examples]][[Category:How To]][[Category:MeeGo Harmattan]] [[Category:Symbian]]   [[Category:Code Examples]][[Category:How To]][[Category:MeeGo Harmattan]] [[Category:Symbian]]



Hamishwillee: Text replace - "Category:MeeGo" to "Category:MeeGo Harmattan"
2012-06-13T10:53:28Z
Text replace - "Category:MeeGo" to "Category:MeeGo Harmattan"

			
			
			
			
		
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		Revision as of 10:53, 13 June 2012
		
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  * [[Media:MBA_right_click_2.zip|Second strategy]].   * [[Media:MBA_right_click_2.zip|Second strategy]].
    
− [[Category:Code Examples]][[Category:How To]][[Category:MeeGo]] [[Category:Symbian]] + [[Category:Code Examples]][[Category:How To]][[Category:MeeGo Harmattan]] [[Category:Symbian]]



Hamishwillee: Hamishwillee - Addition to article of: Category:MeeGo Category:Symbian. (Add platform categories)
2012-02-15T05:35:07Z
Hamishwillee - Addition to article of: Category:MeeGo Category:Symbian. (Add platform categories)

			
			
			
			
		
		← Older revision
		Revision as of 05:35, 15 February 2012
		
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  * [[Media:MBA_right_click_2.zip|Second strategy]].   * [[Media:MBA_right_click_2.zip|Second strategy]].
    
− [[Category:Code Examples]][[Category:How To]] + [[Category:Code Examples]][[Category:How To]][[Category:MeeGo]] [[Category:Symbian]]



Hamishwillee: Fix typo
2011-04-28T04:35:29Z
Fix typo

			
			
			
			
		
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		Revision as of 04:35, 28 April 2011
		
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  [[Category:Maemo]][[Category:Qt]]   [[Category:Maemo]][[Category:Qt]]
− {{Abstract|This article discusses two strategies for handling right button clicks using Qt; the first and simplest being to implement the {{Icode|QObject}} virtual method {{Icode|eventFilter}}. the second being to create a generic event handler for your objects.}} The article covers both strategies and provides working code snippets. It is possible to apply these techniques to Maemo or PC programs, without modifications. However, in Maemo programs it is necessary to press and hold the screen for some instants in order to generate the right click event since a mouse is not available. + {{Abstract|This article discusses two strategies for handling right button clicks using Qt: the first and simplest being to implement the {{Icode|QObject}} virtual method {{Icode|eventFilter}}, the second being to create a generic event handler for your objects.}} The article covers both strategies and provides working code snippets. It is possible to apply these techniques to Maemo or PC programs, without modifications. However, in Maemo programs it is necessary to press and hold the screen for some instants in order to generate the right click event since a mouse is not available.
    
  == Right click by sub-classing ==   == Right click by sub-classing ==



Hamishwillee: Remove Qt for Maemo category. Add Abstract
2011-04-28T04:34:56Z
Remove Qt for Maemo category. Add Abstract

			
			
			
			
		
		← Older revision
		Revision as of 04:34, 28 April 2011
		
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− [[Category:Qt]][[Category:Qt for Maemo]][[Category:Code Examples]][[Category:How To]] + [[Category:Maemo]][[Category:Qt]]
−   + {{Abstract|This article discusses two strategies for handling right button clicks using Qt; the first and simplest being to implement the {{Icode|QObject}} virtual method {{Icode|eventFilter}}. the second being to create a generic event handler for your objects.}} The article covers both strategies and provides working code snippets. It is possible to apply these techniques to Maemo or PC programs, without modifications. However, in Maemo programs it is necessary to press and hold the screen for some instants in order to generate the right click event since a mouse is not available.
− There are at least two known strategies for handling right button clicks using Qt. The first and simplest one is to implement the '''QObject''' virtual method called '''eventFilter'''. The second strategy is to create a generic event handler for your objects. In this article these strategies will be discussed along some working code snippets. It is possible to apply these techniques to Maemo or PC programs, without modifications. However, in Maemo programs it is necessary to press and hold the screen for some instants in order to generate the right click event since a mouse is not available. + 
    
  == Right click by sub-classing ==   == Right click by sub-classing ==
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  * [[Media:MBA_right_click_1.zip|First strategy]].   * [[Media:MBA_right_click_1.zip|First strategy]].
− * [[Media:MBA_right_click_2.zip|Second strategy]]. [[Category:Maemo]] + * [[Media:MBA_right_click_2.zip|Second strategy]].
  +  
  + [[Category:Code Examples]][[Category:How To]]




Hamishwillee: Added category Category:Maemo. (Adding Maemo to all Qt for Maemo topics in preparation for ontology change)
2011-03-31T05:29:36Z
Added category Category:Maemo. (Adding Maemo to all Qt for Maemo topics in preparation for ontology change)

			
			
			
			
		
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		Revision as of 05:29, 31 March 2011
		
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  * [[Media:MBA_right_click_1.zip|First strategy]].   * [[Media:MBA_right_click_1.zip|First strategy]].
− * [[Media:MBA_right_click_2.zip|Second strategy]]. + * [[Media:MBA_right_click_2.zip|Second strategy]]. [[Category:Maemo]]




Divanov at 12:24, 9 February 2010
2010-02-09T12:24:45Z


			
			
			
			
		
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		Revision as of 12:24, 9 February 2010
		
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− [[Category:Qt for Maemo]][[Category:Code Examples]][[Category:How To]] + [[Category:Qt]][[Category:Qt for Maemo]][[Category:Code Examples]][[Category:How To]]
    
  There are at least two known strategies for handling right button clicks using Qt. The first and simplest one is to implement the '''QObject''' virtual method called '''eventFilter'''. The second strategy is to create a generic event handler for your objects. In this article these strategies will be discussed along some working code snippets. It is possible to apply these techniques to Maemo or PC programs, without modifications. However, in Maemo programs it is necessary to press and hold the screen for some instants in order to generate the right click event since a mouse is not available.   There are at least two known strategies for handling right button clicks using Qt. The first and simplest one is to implement the '''QObject''' virtual method called '''eventFilter'''. The second strategy is to create a generic event handler for your objects. In this article these strategies will be discussed along some working code snippets. It is possible to apply these techniques to Maemo or PC programs, without modifications. However, in Maemo programs it is necessary to press and hold the screen for some instants in order to generate the right click event since a mouse is not available.



Jimgilmour1: minor spelling
2010-01-22T08:38:17Z
minor spelling

			
			
			
			
		
		← Older revision
		Revision as of 08:38, 22 January 2010
		
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  There are at least two known strategies for handling right button clicks using Qt. The first and simplest one is to implement the '''QObject''' virtual method called '''eventFilter'''. The second strategy is to create a generic event handler for your objects. In this article these strategies will be discussed along some working code snippets. It is possible to apply these techniques to Maemo or PC programs, without modifications. However, in Maemo programs it is necessary to press and hold the screen for some instants in order to generate the right click event since a mouse is not available.   There are at least two known strategies for handling right button clicks using Qt. The first and simplest one is to implement the '''QObject''' virtual method called '''eventFilter'''. The second strategy is to create a generic event handler for your objects. In this article these strategies will be discussed along some working code snippets. It is possible to apply these techniques to Maemo or PC programs, without modifications. However, in Maemo programs it is necessary to press and hold the screen for some instants in order to generate the right click event since a mouse is not available.
    
− == Right click by subclassing == + == Right click by sub-classing ==
    
  The virtual '''QObject''' method called '''eventFilter''' can be used to handler any event received by the object. It is possible to decide if you want to consume the event (returning false in your reimplementation) or delegate it for further processing by other software layers (calling the event handler of parent class). Moreover, it is necessary to enable the event filter as well, calling the method '''installEventFilter'''.   The virtual '''QObject''' method called '''eventFilter''' can be used to handler any event received by the object. It is possible to decide if you want to consume the event (returning false in your reimplementation) or delegate it for further processing by other software layers (calling the event handler of parent class). Moreover, it is necessary to enable the event filter as well, calling the method '''installEventFilter'''.

← Older revision		Revision as of 10:53, 13 June 2012
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	* [[Media:MBA_right_click_2.zip\|Second strategy]].		* [[Media:MBA_right_click_2.zip\|Second strategy]].

−	[[Category:Code Examples]][[Category:How To]][[Category:MeeGo]] [[Category:Symbian]]	+	[[Category:Code Examples]][[Category:How To]][[Category:MeeGo Harmattan]] [[Category:Symbian]]

← Older revision		Revision as of 05:35, 15 February 2012
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	* [[Media:MBA_right_click_2.zip\|Second strategy]].		* [[Media:MBA_right_click_2.zip\|Second strategy]].

−	[[Category:Code Examples]][[Category:How To]]	+	[[Category:Code Examples]][[Category:How To]][[Category:MeeGo]] [[Category:Symbian]]

← Older revision		Revision as of 05:29, 31 March 2011
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	* [[Media:MBA_right_click_1.zip\|First strategy]].		* [[Media:MBA_right_click_1.zip\|First strategy]].
−	* [[Media:MBA_right_click_2.zip\|Second strategy]].	+	* [[Media:MBA_right_click_2.zip\|Second strategy]]. [[Category:Maemo]]

← Older revision		Revision as of 12:24, 9 February 2010
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−	[[Category:Qt for Maemo]][[Category:Code Examples]][[Category:How To]]	+	[[Category:Qt]][[Category:Qt for Maemo]][[Category:Code Examples]][[Category:How To]]

	There are at least two known strategies for handling right button clicks using Qt. The first and simplest one is to implement the '''QObject''' virtual method called '''eventFilter'''. The second strategy is to create a generic event handler for your objects. In this article these strategies will be discussed along some working code snippets. It is possible to apply these techniques to Maemo or PC programs, without modifications. However, in Maemo programs it is necessary to press and hold the screen for some instants in order to generate the right click event since a mouse is not available.		There are at least two known strategies for handling right button clicks using Qt. The first and simplest one is to implement the '''QObject''' virtual method called '''eventFilter'''. The second strategy is to create a generic event handler for your objects. In this article these strategies will be discussed along some working code snippets. It is possible to apply these techniques to Maemo or PC programs, without modifications. However, in Maemo programs it is necessary to press and hold the screen for some instants in order to generate the right click event since a mouse is not available.

Handling right button clicks using Qt - Revision history

Hamishwillee: Text replace - "" to ""

Hamishwillee: Hamishwillee - Bot update - Add ArticleMetaData

Hamishwillee: Hamishwillee - Bot update - Add ArticleMetaData

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

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

Hamishwillee: Fix typo

Hamishwillee: Remove Qt for Maemo category. Add Abstract

Hamishwillee: Added category Category:Maemo. (Adding Maemo to all Qt for Maemo topics in preparation for ontology change)

Divanov at 12:24, 9 February 2010

Jimgilmour1: minor spelling

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