epoc32/include/mw/eikvcurs.h
author William Roberts <williamr@symbian.org>
Wed, 31 Mar 2010 12:33:34 +0100
branchSymbian3
changeset 4 837f303aceeb
parent 3 e1b950c65cb4
permissions -rw-r--r--
Current Symbian^3 public API header files (from PDK 3.0.h)
This is the epoc32/include tree with the "platform" subtrees removed, and
all but a selected few mbg and rsg files removed.
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// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// class TEikVirtualCursor
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// 
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//
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#ifndef __EIKVCURS_H__
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#define __EIKVCURS_H__
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#include <e32std.h>
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#include <coemain.h>
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/** Provides support for the virtual cursor's state within an application.
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There is one instance of this object per CEikonEnv. 
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@publishedAll
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@released */
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class TEikVirtualCursor
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	{
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public:
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	/** Specifies the virtual cursor's state. 
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	The state may be on, off or suspended. The suspended state is for use by applications 
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	that wish to temporarily disable the cursor, but do not want to switch it 
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	off completely. For example, an editor control which when focused needs to 
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	capture arrow keys would disable the virtual cursor when it gains focus, 
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	and enable it when unfocused. */
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	enum TState
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		{
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		/** Sets the virtual cursor off. */
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		EOff=0,
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		/** Sets the virtual cursor on. */
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		EOn,
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		/** Sets the virtual cursor as suspended. */
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		ESuspended
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		};
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public:
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	TEikVirtualCursor();
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private: //prevent passing by value
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	inline TEikVirtualCursor(const TEikVirtualCursor&);
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public:
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	IMPORT_C void SetCursorStateL(TState aState, CCoeEnv& aEnv);
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	IMPORT_C TState CursorState(CCoeEnv& aEnv);
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public: // but not exported
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	void HandleAppToForeground(CCoeEnv& aEnv);
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private:
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	void SwitchOffEmulationAndBitmap(CCoeEnv& aEnv);
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	void SwitchOnEmulationAndBitmap(CCoeEnv& aEnv);
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private:
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	TState iState;
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	};
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// inlines
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/** Constructor.
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Sets the cursor's state to ESuspended so that the call to switch off the virtual 
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cursor will succeed when the application starts. Required due to the efficient 
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implementation of SetCursorState(). */
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inline TEikVirtualCursor::TEikVirtualCursor(const TEikVirtualCursor&)
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	{}
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#endif