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Drawing skins in container

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[[Category:Code_Examples]]
+
{{ArticleMetaData <!-- v1.1 -->
 +
|sourcecode= <!-- Link to example source code e.g. [[Media:The Code Example ZIP.zip]] -->
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|devices= <!-- Devices tested against - e.g. ''devices=Nokia 6131 NFC, Nokia C7-00'') -->
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|sdk= <!-- SDK(s) built and tested against (e.g. [http://linktosdkdownload/ Nokia Qt SDK 1.1]) -->
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|platform= <!-- Compatible platforms - e.g. Symbian^1 and later, Qt 4.6 and later -->
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|devicecompatability= <!-- Compatible devices e.g.: All* (must have internal GPS) -->
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|dependencies= <!-- Any other/external dependencies e.g.: Google Maps Api v1.0 -->
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|signing= <!-- Signing requirements - empty or one of: Self-Signed, DevCert, Manufacturer -->
 +
|capabilities= <!-- Capabilities required by the article/code example (e.g. Location, NetworkServices. -->
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|keywords= <!-- APIs, classes and methods (e.g. QSystemScreenSaver, QList, CBase -->
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|creationdate= 20070320
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|author= [[User:Symbianyucca]]
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}}
 
[[Category:Symbian C++]]
 
[[Category:Symbian C++]]
 +
The '''CSkinnedContainer''' implementation illustrates how to draw skins in a '''CCoeControl''' derived container in the [[S60]] platform.
  
The CSkinnedContainer implementation illustrates how to draw skins in CCoeControl derived container within S60 platform.  
+
The '''iBgContext''' is the '''CAknsBasicBackgroundControlContext''' which is used to draw the skin on the control's background. To draw on a different screen area you could change '''KAknsIIDQsnBgScreen''' identify to the background you would like to use with your container.
  
The iBgContext is the CAknsBasicBackgroundControlContext which is used to draw the skin into the controls background. To draw different screen area you could change KAknsIIDQsnBgScreen identify the background you would like to use with your container.
+
Note that for the skins to work properly you need to enable skins first. Usually this is done in Application user interface class' ''ConstructL()'' method by calling the ''ConstructL()'' method with '''CAknAppUi::EAknEnableSkin''' parameter.
  
Note that for skins to work properly you need to enable skins first, usually this is done in Application user interface classes ConstructL function, by calling the ConstructL function with  CAknAppUi::EAknEnableSkin as a parameter.
+
'''Library required:'''
 +
<code cpp>
 +
//CAknsBasicBackgroundControlContext , MAknsSkinInstance
 +
LIBRARY  aknskins.lib aknskinsrv.lib aknswallpaperutils.lib
 +
</code>
  
 
== SkinnedContainer.cpp ==
 
== SkinnedContainer.cpp ==
  
<code 'cpp'>
+
<code cpp>
 
CSkinnedContainer::~CSkinnedContainer()
 
CSkinnedContainer::~CSkinnedContainer()
 
{
 
{
Line 18: Line 45:
  
 
CSkinnedContainer* CSkinnedContainer::NewL(void)
 
CSkinnedContainer* CSkinnedContainer::NewL(void)
    {
+
{
 
     CSkinnedContainer* self = new(ELeave)CSkinnedContainer();
 
     CSkinnedContainer* self = new(ELeave)CSkinnedContainer();
 
     CleanupStack::PushL(self);
 
     CleanupStack::PushL(self);
Line 24: Line 51:
 
     CleanupStack::Pop(self);
 
     CleanupStack::Pop(self);
 
     return self;
 
     return self;
    }
+
}
  
 
void CSkinnedContainer::ConstructL(void)
 
void CSkinnedContainer::ConstructL(void)
    {
+
  {
 
     CreateWindowL();
 
     CreateWindowL();
  
 
// make first with no size at all
 
// make first with no size at all
iBgContext = CAknsBasicBackgroundControlContext::NewL(KAknsIIDQsnBgScreen,TRect(0,0,1,1), ETrue);
+
iBgContext = CAknsBasicBackgroundControlContext::NewL(
 +
KAknsIIDQsnBgScreen,TRect(0,0,1,1), ETrue);
 
// Setting rect will cause SizeChanged to be called
 
// Setting rect will cause SizeChanged to be called
 
// and iBgContext size & position is updated accordingly.
 
// and iBgContext size & position is updated accordingly.
Line 83: Line 111:
 
CWindowGc& gc = SystemGc();
 
CWindowGc& gc = SystemGc();
 
      
 
      
    // draw background skin first.
+
// draw background skin first.
 
   MAknsSkinInstance* skin = AknsUtils::SkinInstance();
 
   MAknsSkinInstance* skin = AknsUtils::SkinInstance();
 
AknsDrawUtils::Background( skin, iBgContext, this, gc, aRect );
 
AknsDrawUtils::Background( skin, iBgContext, this, gc, aRect );
Line 91: Line 119:
 
== SkinnedContainer.h ==
 
== SkinnedContainer.h ==
  
<code 'cpp'>
+
<code cpp>
 
#include <coecntrl.h>      // CCoeControl
 
#include <coecntrl.h>      // CCoeControl
 
#include <AknsBasicBackgroundControlContext.h>  
 
#include <AknsBasicBackgroundControlContext.h>  
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#include <aknscontrolcontext.h>
 
#include <aknscontrolcontext.h>
 
#include <AknsSkinInstance.h>
 
#include <AknsSkinInstance.h>
#include <aknsutils.h>
+
#include <aknutils.h>
  
  
Line 110: Line 138:
 
virtual void SizeChanged();
 
virtual void SizeChanged();
 
virtual void HandleResourceChange(TInt aType);
 
virtual void HandleResourceChange(TInt aType);
    void ConstructL(void);
+
void ConstructL(void);
 
void Draw(const TRect& aRect) const;
 
void Draw(const TRect& aRect) const;
 
private:
 
private:
 
CAknsBasicBackgroundControlContext* iBgContext;  
 
CAknsBasicBackgroundControlContext* iBgContext;  
 
};
 
};
</code>
+
</code>[[Category:Code Snippet]][[Category:Customization]][[Category:Themes]]

Latest revision as of 09:39, 11 January 2012

Article Metadata
Article
Created: symbianyucca (20 Mar 2007)
Last edited: hamishwillee (11 Jan 2012)

The CSkinnedContainer implementation illustrates how to draw skins in a CCoeControl derived container in the S60 platform.

The iBgContext is the CAknsBasicBackgroundControlContext which is used to draw the skin on the control's background. To draw on a different screen area you could change KAknsIIDQsnBgScreen identify to the background you would like to use with your container.

Note that for the skins to work properly you need to enable skins first. Usually this is done in Application user interface class' ConstructL() method by calling the ConstructL() method with CAknAppUi::EAknEnableSkin parameter.

Library required:

//CAknsBasicBackgroundControlContext , MAknsSkinInstance
LIBRARY aknskins.lib aknskinsrv.lib aknswallpaperutils.lib

[edit] SkinnedContainer.cpp

CSkinnedContainer::~CSkinnedContainer()
{
delete iBgContext;
iBgContext = NULL;
}
 
CSkinnedContainer* CSkinnedContainer::NewL(void)
{
CSkinnedContainer* self = new(ELeave)CSkinnedContainer();
CleanupStack::PushL(self);
self->ConstructL();
CleanupStack::Pop(self);
return self;
}
 
void CSkinnedContainer::ConstructL(void)
{
CreateWindowL();
 
// make first with no size at all
iBgContext = CAknsBasicBackgroundControlContext::NewL(
KAknsIIDQsnBgScreen,TRect(0,0,1,1), ETrue);
// Setting rect will cause SizeChanged to be called
// and iBgContext size & position is updated accordingly.
SetRect(CEikonEnv::Static()->EikAppUi()->ClientRect());
 
ActivateL();
DrawNow();
}
 
void CSkinnedContainer::SizeChanged()
{
if ( iBgContext )
{
iBgContext->SetRect(Rect());
 
if ( &Window() )
{
iBgContext->SetParentPos( PositionRelativeToScreen() );
}
}
}
 
 
void CSkinnedContainer::HandleResourceChange(TInt aType)
{
TRect rect;
 
if ( aType==KEikDynamicLayoutVariantSwitch )
{
AknLayoutUtils::LayoutMetricsRect(AknLayoutUtils::EMainPane, rect);
SetRect(rect);
}
 
CCoeControl::HandleResourceChange(aType);
}
 
 
TTypeUid::Ptr CSkinnedContainer::MopSupplyObject(TTypeUid aId)
{
if (iBgContext)
{
return MAknsControlContext::SupplyMopObject(aId, iBgContext );
}
 
return CCoeControl::MopSupplyObject(aId);
}
 
 
void CSkinnedContainer::Draw(const TRect& aRect) const
{
CWindowGc& gc = SystemGc();
 
// draw background skin first.
MAknsSkinInstance* skin = AknsUtils::SkinInstance();
AknsDrawUtils::Background( skin, iBgContext, this, gc, aRect );
}

[edit] SkinnedContainer.h

#include <coecntrl.h>       // CCoeControl
#include <AknsBasicBackgroundControlContext.h>
#include <aknsdrawutils.h>
#include <aknscontrolcontext.h>
#include <AknsSkinInstance.h>
#include <aknutils.h>
 
 
class CSkinnedContainer : public CCoeControl
{
public:
static CSkinnedContainer* NewL(void);
~CSkinnedContainer();
protected:
TTypeUid::Ptr MopSupplyObject(TTypeUid aId); //
private:
virtual void SizeChanged();
virtual void HandleResourceChange(TInt aType);
void ConstructL(void);
void Draw(const TRect& aRect) const;
private:
CAknsBasicBackgroundControlContext* iBgContext;
};
This page was last modified on 11 January 2012, at 09:39.
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