Drawing skins in container From Forum Nokia Wiki

最新推荐文章于 2025-04-10 11:50:20 发布

转载最新推荐文章于 2025-04-10 11:50:20 发布 · 842 阅读

文章标签：

#nokia #behavior #url #application #interface #library

本文介绍如何在S60平台中使用CCoeControl派生容器绘制皮肤。通过实例展示如何设置背景控制上下文，并调整容器大小来更新皮肤显示。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

Drawing skins in container From Forum Nokia Wiki

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.

Reviewer Approved

Library required:

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

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 );
}

SkinnedContainer.h

#include <coecntrl.h>       // CCoeControl
#include <AknsBasicBackgroundControlContext.h>
#include <aknsdrawutils.h>
#include <aknscontrolcontext.h>
#include <AknsSkinInstance.h>
#include <aknsutils.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;
};