Using Theme in an Application

S60平台皮肤应用教程

最新推荐文章于 2025-08-01 13:37:55 发布

原创最新推荐文章于 2025-08-01 13:37:55 发布 · 817 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#application #destructor #class #delete #library #include

本文详细介绍了如何在S60平台2.0版本之后的应用中使用主题皮肤功能。主要内容包括链接aknskins.lib库文件、在AppUi中启用皮肤、在容器类中创建与销毁MAknsControlContext实例、利用皮肤库绘制背景位图等。

Using Theme in an Application

This article can tell you how to write a enable skins application.

You can use theme in an Application after version in Series 60 Platform 2.0. the following content will tell you how to do these step by step.

Link against aknskins.lib and include files

Add the libray named aknskins.lib in SkinSample.mmp

Code:

LIBRARY aknskins.lib // link against aknskins.lib

Add two include files in SkinExampleContainer.h

Code:

#include <AknsDrawUtils.h>// add this inlcude file skin
#include <AknsBasicBackgroundControlContext.h> //add this inlcude file skin

Enabling skins in AppUi

Code:

/* In SkinExampleAppUi.cpp */

void CSkinExampleAppUi::ConstructL()
{
BaseConstructL( EAknEnableSkin );//Construct a enalbe skin

.....

}

new and delete a MAknsControlContext class in Container class

Add a MAknsControlContext class in container class

Code:

/* In skinExampleContainer.h */

class CSkinExampleContainer : public CCoeControl, MCoeControlObserver

{

....

private:

MAknsControlContext* iBackGround; // for skins support

}

/* In SkinExapleContainer.cpp */

void CSkinExampleContainer::ConstructL(const TRect& aRect)
{
CreateWindowL();

    iLabel = new (ELeave) CEikLabel;
    iLabel->SetContainerWindowL( *this );
    iLabel->SetTextL( _L("Skin Example") );

SetRect(aRect);
iBackGround = CAknsBasicBackgroundControlContext::NewL( KAknsIIDQsnBgAreaMain, Rect(), EFalse );// new a background

ActivateL();
}

Delete iBackGroud

Code:

// Destructor
CSkinExampleContainer::~CSkinExampleContainer()
{
.....

delete iBackGround;
}

Draw the background bitmap using Skin library

Code:

/* In SkinExapleContainer.cpp */

void CSkinExampleContainer::Draw(const TRect& aRect) const
    {
    CWindowGc& gc = SystemGc();
// draw background
MAknsSkinInstance* skin = AknsUtils::SkinInstance();//new
MAknsControlContext* cc = AknsDrawUtils::ControlContext( this );//new
    AknsDrawUtils::Background( skin, cc, this, gc, aRect );//new
    }

MObjectProvider Chains

MObjectProvider interface can be used to make object instances available to child controls.

MopSupplyObject returns a pointer based on the given UID.

Code:

/* In SkinExapleContainer.cpp */

TTypeUid::Ptr CSkinExampleContainer::MopSupplyObject(TTypeUid aId)
    {
    if(aId.iUid == MAknsControlContext::ETypeId && iBackGround)
        {
        return MAknsControlContext::SupplyMopObject( aId, iBackGround);
        }

return CCoeControl::MopSupplyObject( aId );
}

Note: If you want to get the source code about this article ,plz contact me.

Trackback: http://tb.blog.youkuaiyun.com/TrackBack.aspx?PostId=751487