classschedulecontainer.cpp

《基于symbian os的手机开发与应用》

/*
* ============================================================================
*  Name     : CClassScheduleContainer from ClassScheduleContainer.h
*  Part of  : ClassSchedule
*  Created  : 2005-8-30 by 
*  Implementation notes:
*     Initial content was generated by Series 60 AppWizard.
*  Version  :
*  Copyright: 
* ============================================================================
*/

// INCLUDE FILES
#include "ClassScheduleContainer.h"
#include "ClassScheduleAppUi.h"
#include "ClassScheduleDB.h"

#include <aknlists.h>
#include <aknPopup.h> 
#include <ClassSchedule.rsg>
#include <aknnavi.h>
#include <akntabgrp.h>
#include <barsread.h>
#include <aknnavide.h>
#include <akntitle.h>

_LIT(KTab, "\t");

// ================= MEMBER FUNCTIONS =======================

// ---------------------------------------------------------
// CClassScheduleContainer::ConstructL(const TRect& aRect)
// EPOC two phased constructor
// ---------------------------------------------------------
//
void CClassScheduleContainer::ConstructL(const TRect& aRect, CClassScheduleAppUi *aUi)
{
    iUi = aUi;
    iTimer = CPeriodic::NewL(CActive::EPriorityStandard); 
	//CPeriodic产生规则的定时器时间和处理他们用一个回调函数分配和构造一个CPeriodic对象
   
	CreateWindowL();
    SetRect(aRect);
    
    iListBox = new( ELeave ) CAknSingleHeadingStyleListBox();
	//分配和构造一个CAknSingleHeadingStyleListBox类型的列表框对象

    iListBox->ConstructL( this, EAknListBoxSelectionList );
    iListBox->CreateScrollBarFrameL( ETrue );
    iListBox->ScrollBarFrame()->SetScrollBarVisibilityL(CEikScrollBarFrame::EOff,CEikScrollBarFrame::EAuto);
    iListBox->SetListBoxObserver( this );
    
    CreateListBoxL();
    
    ActivateL();
}

//-----------------------------------------------
// 析构函数
//-----------------------------------------------

CClassScheduleContainer::~CClassScheduleContainer()
{
    delete iListBox;
    delete iTimer;
}

// ---------------------------------------------------------
// CClassScheduleContainer::CountComponentControls() const
// ---------------------------------------------------------

TInt CClassScheduleContainer::CountComponentControls() const
{
    return 1; // Returns number of controls inside this container.
}

// ---------------------------------------------------------
// CClassScheduleContainer::ComponentControl(TInt aIndex) const
// ---------------------------------------------------------

CCoeControl* CClassScheduleContainer::ComponentControl(TInt /*aIndex*/) const
{
    return iListBox;
}

// ---------------------------------------------------------
// CClassScheduleContainer::Draw(const TRect& aRect) const
// ---------------------------------------------------------

void CClassScheduleContainer::Draw(const TRect& aRect) const
{
    CWindowGc& gc = SystemGc();
    // TODO: Add your drawing code here
    // example code...
    gc.SetPenStyle(CGraphicsContext::ENullPen);
    gc.SetBrushColor(KRgbGray);
    gc.SetBrushStyle(CGraphicsContext::ESolidBrush);
    gc.DrawRect(aRect);
}

// ---------------------------------------------------------
// CClassScheduleContainer::HandleControlEventL(
//     CCoeControl* aControl,TCoeEvent aEventType)
// ---------------------------------------------------------

void CClassScheduleContainer::HandleControlEventL(
                                             CCoeControl* /*aControl*/,TCoeEvent /*aEventType*/)
{
    // TODO: Add your control event handler code here
}

//------------------------------------------------------------
//创建列表
//------------------------------------------------------------

void CClassScheduleContainer::CreateListBoxL()
{
    iUi->iIsSearchStatus = EFalse;
    CDesCArray* itemArray = STATIC_CAST( CDesCArray*,iListBox->Model()->ItemTextArray());
    itemArray->Reset();                    //从新设置内存空间为空
    
    TName itemText;
    TBuf<32> noneText;
    CEikonEnv::Static()->ReadResource(noneText, R_STR_NONE);
    CArrayFixFlat<TClassScheduleDBStruct>* arrayDay = (CArrayFixFlat<TClassScheduleDBStruct>*)iUi->iDB->iArray->At(iUi->iDB->iWeekId);
    for(TInt res=R_STR_LESSON_01; res<=R_STR_LESSON_10; res ++)   //循环，从第一节课到第十节课
    {
        TClassScheduleDBStruct &db = arrayDay->At(res-R_STR_LESSON_01);  //取数组中的第一个值
        CEikonEnv::Static()->ReadResource(itemText, res);           //将从数组中得到的第一个值赋给itemText
        itemText.Append(KTab);				//将\t加到从数组获取的信息之后
        if(db.iName.Length()==0)			//如果数据库中没有课程名
        {
            itemText.Append(noneText);		//在\t后加上None 
        }
        else								//如果数据库中保存有输入的课程名
        {
            itemText.Append(db.iName);		//在\t后加上课程名
        }
        itemArray->AppendL(itemText);		//将信息放到数组末尾
    }

    iListBox->HandleItemAdditionL();		//处理添加一个项到模型中
    iListBox->SetRect(Rect());				//设置矩形区
    iListBox->ActivateL();
    iListBox->DrawNow();
}

TInt CClassScheduleContainer::GetCurrentItemIndex()
{
    return iListBox->CurrentItemIndex();	//返回当前项的索引
}

void CClassScheduleContainer::SetCurrentItemIndex(TInt aIndex)
{
    iListBox->SetCurrentItemIndexAndDraw(aIndex);	//设置当前项和重画列表            
}

//------------------------------------------------------------
//创建查询列表
//------------------------------------------------------------

void CClassScheduleContainer::CreateSearchListBoxL()
{
    iUi->iIsSearchStatus = ETrue;
    CDesCArray* itemArray = STATIC_CAST( CDesCArray*,iListBox->Model()->ItemTextArray()); //将通过iListBox 得到的数组数据类型转换成CDesCArray类型
    itemArray->Reset();                 //从新设置内存空间为空                                      
    
    TInt weekid = EWeek1;
    TInt lessonid = ECourse01;
    TName itemText, tips;
    for(weekid=EWeek1; weekid<=EWeek7; weekid++)                  //循环从周一到周末
    {
        for(lessonid=ECourse01;lessonid<=ECourse10;lessonid++)    //循环从第一节课到第十节课
        {
            if(iUi->iIsSearchFlag[weekid][lessonid])              //如果是搜寻结果的列表
            {
                CEikonEnv::Static()->ReadResource(tips, weekid+R_STR_WEEK_1); //获取星期的信息
                itemText.Copy(tips);                                          //将获取的信息拷贝到itemText
                itemText.Append(KTab);                                        //在信息后加上\t
                CEikonEnv::Static()->ReadResource(tips, lessonid+R_STR_LESSON_01); //获取是哪节课的信息
                itemText.Append(tips);				//将获取的信息添加到itemText后
                itemArray->AppendL(itemText);		//将所有信息添加到数组末尾
            }
        }
    }

    iListBox->HandleItemAdditionL();				//处理添加一个项到模型中
    iListBox->SetRect(Rect());						//设置矩形区
    iListBox->ActivateL();
    iListBox->DrawNow();

    CEikStatusPane* sp = iEikonEnv->AppUiFactory()->StatusPane();
    CAknTitlePane* iTitlePane = (CAknTitlePane *)sp->ControlL(TUid::Uid(EEikStatusPaneUidTitle));
    CEikonEnv::Static()->ReadResource(tips, R_STR_SEARCH_FOR_RESULT);
    iTitlePane->SetTextL(tips);
}

//--------------------------------------------------------
//处理listbox 事件
//--------------------------------------------------------

void CClassScheduleContainer::HandleListBoxEventL(CEikListBox* /*aListBox*/,TListBoxEvent aEventType )
{
    if(aEventType==EEventEnterKeyPressed)    //如果在listbox上按下键
    {
        OpenCurrentListItem();               //打开当前列表中的信息
    }
}

//-----------------------------------------------------
//处理按键事件
//-----------------------------------------------------

TKeyResponse CClassScheduleContainer::OfferKeyEventL(const TKeyEvent &aKeyEvent, TEventCode aType)
{
    if(aType==EEventKey)                    //如果按键
    {
        if(aKeyEvent.iCode==EKeyLeftArrow)  //如果按下左键
        {
            if(!iUi->iIsSearchStatus)       //如果是列表框类型是显示十节课的类型
                iUi->CmdPrev();             //显示上一天的信息
            else
                return EKeyWasConsumed;          
        }
        else if(aKeyEvent.iCode==EKeyRightArrow)  //如果按下右键
        {
            if(!iUi->iIsSearchStatus)             //如果是列表框类型是显示十节课的类型
                iUi->CmdNext();                   //显示下一天的信息
            else
                return EKeyWasConsumed;
        }
    }
    return iListBox->OfferKeyEventL(aKeyEvent, aType);  //光标在列表上上下移动
}

void CClassScheduleContainer::OpenCurrentListItem()
{
    iTimer->Start( 0, 0, TCallBack(CClassScheduleContainer::TimerPeriod, this)); 
	//异步调用TimerPeriod ，时间间隔为0
}

TInt CClassScheduleContainer::TimerPeriod(TAny * aPtr)
{
    ((CClassScheduleContainer*)aPtr)->UpdataTimer();
    return TRUE;
}

void CClassScheduleContainer::UpdataTimer()
{
    iTimer->Cancel();
    if(iUi->iIsSearchStatus)		//如果list为查询状态
    {
        CmdSearchDetail();			//显示要查询的 详细信息
    }
    else
    {
        CmdDetail();				//否则显示详细信息
    }
}

void CClassScheduleContainer::CmdDetail()
{
    iUi->CmdDetail();				//显示详细信息
}

void CClassScheduleContainer::CmdSearchDetail()
{
    iUi->iCurSearchItemIndex = iListBox->CurrentItemIndex();  //从视图中获取当前项的索引
    iUi->CmdSearchDetail();			//显示查询的详细信息
}

void CClassScheduleContainer::CmdModify()
{
    iUi->CmdModify();				//修改
}

void CClassScheduleContainer::CmdDelete()
{
    iUi->CmdDelete();				//删除
}

// End of File