Using Theme in an Application

最新推荐文章于 2022-07-03 23:51:31 发布

cool_li

最新推荐文章于 2022-07-03 23:51:31 发布

阅读量829

点赞数

CC 4.0 BY-SA版权

分类专栏： Symbian 文章标签： application destructor class delete library include

本文链接：https://blog.youkuaiyun.com/cool_li/article/details/751487

Symbian 专栏收录该内容

3 篇文章

订阅专栏

本文介绍如何在S60平台2.0版本后的应用程序中使用主题皮肤，包括链接库文件、启用皮肤支持、创建背景控制上下文及绘制背景位图等步骤。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

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.

Author Website: http://www.symbianer.com

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.