How to create Label
hamishwillee
(Talk | contribs) m (Hamishwillee - Bot update - Add ArticleMetaData) |
(Izinin - - →Step 2: LabelTestAppView.cpp) |
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</code> | </code> | ||
| + | [[Category:Symbian C++]][[Category:Code Snippet]][[Category:UI]][[Category:How To]] | ||
== Step 2: LabelTestAppView.cpp == | == Step 2: LabelTestAppView.cpp == | ||
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void CLabelTestAppView::SizeChanged() | void CLabelTestAppView::SizeChanged() | ||
{ | { | ||
| − | iLabel->SetExtent( TPoint(0,0), iLabel->MinimumSize()); | + | //NOTE: the first time SizeChanged comes when iLabel has not created yet |
| + | if(iLabel) | ||
| + | iLabel->SetExtent( TPoint(0,0), iLabel->MinimumSize()); | ||
} | } | ||
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Latest revision as of 11:36, 2 August 2012
Article Metadata
Reviewer Approved 
Following code snippet shows how to create Label control in Symbian C++.
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;
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.
