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How to create Label

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(Izinin - - Step 2: LabelTestAppView.cpp)
 
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Following code snippet shows how to create Label control in [[Symbian C++]].
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 +
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 +
|sdk= <!-- SDK(s) built and tested against (e.g. [http://linktosdkdownload/ Qt SDK 1.1.4]) -->
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|platform= <!-- Compatible platforms - e.g. Symbian^1 and later, Qt 4.6 and later -->
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<div align="right">'''Reviewer Approved''' &nbsp;&nbsp; [[File:Thumbs up icon sm.jpg|31x38px]]</div>
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Following code snippet shows how to create Label control in [[:Category:Symbian C++|Symbian C++]].
  
 
== Step 1: LabelTestAppView.h ==
 
== Step 1: LabelTestAppView.h ==
Line 15: Line 38:
 
TInt CountComponentControls() const;
 
TInt CountComponentControls() const;
 
CCoeControl* ComponentControl(TInt aIndex) const;
 
CCoeControl* ComponentControl(TInt aIndex) const;
void SetText(const TDesC& aText); // To change text(user-inputted)
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void PutTextL(const TDesC& aText); // To change text(user-inputted)
 
</code>
 
</code>
  
Line 26: Line 49:
 
</code>
 
</code>
  
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[[Category:Symbian C++]][[Category:Code Snippet]][[Category:UI]][[Category:How To]]
 
== Step 2: LabelTestAppView.cpp ==
 
== Step 2: LabelTestAppView.cpp ==
  
Line 57: Line 81:
 
void CLabelTestAppView::SizeChanged()
 
void CLabelTestAppView::SizeChanged()
 
{   
 
{   
     iLabel->SetExtent( TPoint(0,0), TSize(Rect().Width()/2, Rect().Height()/2));
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     //NOTE: the first time SizeChanged comes when iLabel has not created yet
 +
    if(iLabel)
 +
        iLabel->SetExtent( TPoint(0,0), iLabel->MinimumSize());
 
}
 
}
  
Line 77: Line 103:
  
 
//Call this function to change value of Label
 
//Call this function to change value of Label
void CLabelTestAppView::SetText(const TDesC& aText)
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void CLabelTestAppView::PutTextL(const TDesC& aText)
 
{
 
{
 
   iLabel->SetTextL(aText);
 
   iLabel->SetTextL(aText);
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----
 
----
[[Category:Symbian C++]]
 
[[Category:Code Examples]]
 
[[Category:UI]]
 
[[Category:How To]]
 

Latest revision as of 11:36, 2 August 2012

Article Metadata
Article
Created: kiran10182 (27 Jun 2008)
Last edited: izinin (02 Aug 2012)
Reviewer Approved    Thumbs up icon sm.jpg

Following code snippet shows how to create Label control in Symbian C++.

[edit] Step 1: LabelTestAppView.h

  • Open your LabelTestAppView.h file.
  • Include entries for required header files.
#include <eiklabel.h>
  • Add required functions which will be needed for control.
TInt CountComponentControls() const;
CCoeControl* ComponentControl(TInt aIndex) const;
void PutTextL(const TDesC& aText); // To change text(user-inputted)
  • Declare object of Label:
private: // data
// ..
CEikLabel* iLabel;

[edit] Step 2: LabelTestAppView.cpp

  • Open your "LabelTestAppView.cpp" file.
  • Now in the ContructL() function of your LabelTestAppView.cpp file:
void CLabelTestAppView::ConstructL( const TRect& aRect )
{
// Create a window for this application view
CreateWindowL();
 
_LIT(KTextHelloWorld, "hello world");
iLabel = new (ELeave) CEikLabel;
iLabel->SetContainerWindowL( *this );
iLabel->SetTextL(KTextHelloWorld);
 
// Set the windows size
SetRect( aRect );
 
// Activate the window, which makes it ready to be drawn
ActivateL();
}
 
CLabelTestAppView::~CLabelTestAppView()
{
delete iLabel;
}
 
void CLabelTestAppView::SizeChanged()
{
//NOTE: the first time SizeChanged comes when iLabel has not created yet
if(iLabel)
iLabel->SetExtent( TPoint(0,0), iLabel->MinimumSize());
}
 
TInt CLabelTestAppView::CountComponentControls() const
{
return 1;
}
 
CCoeControl* CLabelTestAppView::ComponentControl(TInt aIndex) const
{
switch ( aIndex )
{
case 0:
return iLabel;
default:
return NULL;
}
}
 
//Call this function to change value of Label
void CLabelTestAppView::PutTextL(const TDesC& aText)
{
iLabel->SetTextL(aText);
}

Note: Do not forget to add an entry for eikcoctl.lib in your .mmp file.


This page was last modified on 2 August 2012, at 11:36.
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