fontsandtextappui.cpp

来自「最新官方例子,图形,描述副,基本控件,通讯协议,等等,」· C++ 代码 · 共 143 行

/**
 * 
 * @brief Definition of CFontsAndTextAppUi
 *
 * Copyright (c) EMCC Software Ltd 2003
 * @version 1.0
 */

// INCLUDE FILES
// Class includes
#include "FontsAndTextAppUi.h"

// System includes
#include <akntabgrp.h>	// CAknTabGroup
#include <aknnavi.h>	// CAknNavigationControlContainer
#include <aknnavide.h>	// CAknNavigationDecorator

// User includes
#include "FontsAndTextBasicView.h"			// CFontsAndTextBasicView
#include "FontsAndTextMetricsView.h"		// CFontsAndTextMetricsView
#include "FontsAndTextDeviceFontsView.h"	// CFontsAndTextDeviceFontsView
#include "FontsAndTextEffectsView.h"		// CFontsAndTextEffectsView


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

/**
 * Symbian OS 2nd phase constructor.  Constructs the application's views, 
 * transferring ownership of them to the superclass.
 * Also sets up the navi pane to allow for 'tabbed' appearance of views  
 */	
void CFontsAndTextAppUi::ConstructL()
	{
	BaseConstructL();

	// Show tabs for main views from resources
	CEikStatusPane* sp = StatusPane();

	// Fetch pointer to the default navi pane control
	iNaviPane = (CAknNavigationControlContainer*)sp->ControlL(TUid::Uid(EEikStatusPaneUidNavi));

	// Tabgroup has been read from the resource file and pushed to the navi pane. 
	// Get pointer to the navigation decorator with the ResourceDecorator() function. 
	// Application owns the decorator and it has responsibility to delete the object.
	iDecoratedTabGroup = iNaviPane->ResourceDecorator();

	if (iDecoratedTabGroup)
		{
		iTabGroup = (CAknTabGroup*)iDecoratedTabGroup->DecoratedControl();
		}

	CFontsAndTextBasicView* basicView = CFontsAndTextBasicView::NewLC();
	AddViewL(basicView);	// transfer ownership to CAknViewAppUi
	CleanupStack::Pop(basicView);

	CFontsAndTextMetricsView* metricsView = CFontsAndTextMetricsView::NewLC();
	AddViewL(metricsView);	// transfer ownership to CAknViewAppUi
	CleanupStack::Pop(metricsView);

	CFontsAndTextDeviceFontsView* deviceFontsView = CFontsAndTextDeviceFontsView::NewLC();
	AddViewL(deviceFontsView);	// transfer ownership to CAknViewAppUi
	CleanupStack::Pop(deviceFontsView);

	CFontsAndTextEffectsView* effectsView = CFontsAndTextEffectsView::NewLC();
	AddViewL(effectsView);      // transfer ownership to CAknViewAppUi
	CleanupStack::Pop(effectsView);

	SetDefaultViewL(*basicView);
	}

/**
 * Destructor. Cleans up resources held on the heap
 */
CFontsAndTextAppUi::~CFontsAndTextAppUi()
	{
	delete iDecoratedTabGroup;
	}

/**
 * Manages key input events of moving the directional pad left or right will cause the previous
 * or next view to be displayed
 *
 * @param aKeyEvent the key event
 * @param aType not used
 *
 */
TKeyResponse CFontsAndTextAppUi::HandleKeyEventL(const TKeyEvent& aKeyEvent, TEventCode /*aType*/)
	{
	if (!iTabGroup)
		{
		return EKeyWasNotConsumed;
		}

	TInt active = iTabGroup->ActiveTabIndex();
	TInt count = iTabGroup->TabCount();

	switch (aKeyEvent.iCode)
		{
		case EKeyLeftArrow:
			if (active > 0)
				{
				active--;
				iTabGroup->SetActiveTabByIndex(active);
				ActivateLocalViewL(TUid::Uid(iTabGroup->TabIdFromIndex(active)));
				}
			break;
		case EKeyRightArrow:
			if ((active + 1) < count)
				{
				active++;
				iTabGroup->SetActiveTabByIndex(active);
				ActivateLocalViewL(TUid::Uid(iTabGroup->TabIdFromIndex(active)));
				}
			break;
		default:
			return EKeyWasNotConsumed;
			break;
		}

	return EKeyWasConsumed;
	}

/**
 * From CEikAppUi, takes care of command handling for both views.
 *
 * @param aCommand command to be handled
 */
void CFontsAndTextAppUi::HandleCommandL(TInt aCommand)
	{
	switch (aCommand)
		{
		case EEikCmdExit:
			{
			Exit();
			break;
			}
		default:
			break;      
		}
	}

// End of File