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++]]. | + | {{ArticleMetaData <!-- v1.2 --> |
| + | |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]]) --> | ||
| + | |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= 20080627 | ||
| + | |author= [[User:Kiran10182]] | ||
| + | }} | ||
| + | <div align="right">'''Reviewer Approved''' [[File:Thumbs up icon sm.jpg|31x38px]]</div> | ||
| + | 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 | + | void PutTextL(const TDesC& aText); // To change text(user-inputted) |
</code> | </code> | ||
| Line 26: | Line 49: | ||
</code> | </code> | ||
| + | [[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), | + | //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:: | + | void CLabelTestAppView::PutTextL(const TDesC& aText) |
{ | { | ||
iLabel->SetTextL(aText); | iLabel->SetTextL(aText); | ||
| Line 86: | Line 112: | ||
---- | ---- | ||
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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.
