fepstub/UiPlugins/AknFepUiInterface/inc/AknFepUICtrlCandidatePane.h
changeset 23 f043c81198e3
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fepstub/UiPlugins/AknFepUiInterface/inc/AknFepUICtrlCandidatePane.h	Fri Jun 11 14:00:11 2010 +0300
@@ -0,0 +1,305 @@
+/*
+* Copyright (c) 2002-2004 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0""
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:           
+*       Provides the CAknFepUICtrlCandidatePane definition.
+*
+*/
+
+
+
+
+
+
+
+
+
+
+
+
+#ifndef __AKN_FEP_CANDIDATE_PANE_H__
+#define __AKN_FEP_CANDIDATE_PANE_H__
+
+#include <e32std.h>
+#include <coecntrl.h>
+
+#include "AknFepUiCtrlContainerChinese.h"
+
+/**
+* TPage holds the start index, end index and start position in buffer of every display page
+*/
+struct TPage
+    {
+    TInt iStartIndex;
+    TInt iEndIndex;
+    };
+
+/**
+ * Pane which displays the Chinese Candidates.
+ */
+class MAknFepUICtrlCandidatePane
+    {
+public:
+    enum
+        {
+        EOneCandidate = 1,
+        EMaxCandidates = 10,
+        EMaxPages = 10,
+        EPhraseLength = 10
+        };
+    /**
+     * each candidate can be in a certain mode, which may affect its layout. Note
+     * that only stroke is needed at this time (for components), but more modes could be added 
+     * later if the LAF spec changes.
+     */
+    enum TCandidateMode
+        {
+        ECandidateModeNormal,
+        ECandidateModeStroke
+        };
+public:
+    /**
+     * Allows the client to set a descriptor pointer into an existing buffer of 
+     * data, avoiding unnecessary copying of data.
+     * <p> Note that if the buffer contains less characters than the current
+     * visible count, then the remaining characters will not be displayed. 
+     * <p> Note also that if the current selection falls outside the range
+     * of the size of the new buffer, it will be made not visible. 
+     * However, the current highlighted state remains, so if the selection 
+     * is set once more to a valid entry (or if the buffer is set to a length that 
+     * includes the currently selected position), and the highlight is still enabled,
+     * the highlight will reappear.
+     *
+     * @param aBufferPtr descriptor that contains the candidates for display,
+     *                              could be a pointer into a subset of a larger descriptor 
+     *                              that contains all the candidates. Note that only the 
+     *                              first EMaxCandidates of aBuffer will be used. 
+     *                              Length must be > 0.
+     */
+    virtual void SetCandidateBuffer(const TDesC& aBuffer) = 0;
+
+    /**
+     * This function sets the highlighted status of the pane for rendering purposes. 
+     * If the Pane is highlighted it displays the current selected Candidate, 
+     * plus numbers with each of the other Candidates. 
+     * 
+     * @param aHighlighted ETrue if the highlight is to be set
+     *                                  EFalse if the highlight is to be removed
+     */
+    virtual void SetHighlighted(TBool aHighlighted) = 0;
+
+    /**
+     * enable/disable the rendering of the Horizontal Scroll Arrows. 
+     *
+     * @param aValue if ETrue, enable the arrows
+     *                          if EFalse, disable the arrrows
+     */
+    virtual void ShowHorizontalScrollArrows(TBool aValue) = 0;
+
+
+    /**
+     * enable/disable the rendering of the up Scroll Arrows. 
+     *
+     * @param aValue if ETrue, enable the arrows
+     *  if EFalse, disable the arrrows
+     */
+    virtual void ShowUpScrollArrows(TBool aValue) = 0;
+
+    /**
+     * enable/disable the rendering of the down Scroll Arrows. 
+     *
+     * @param aValue if ETrue, enable the arrows
+     *  if EFalse, disable the arrrows
+     */
+    virtual void ShowDownScrollArrows(TBool aValue) = 0;
+    
+     /**
+     * enable/disable the rendering of the left Scroll Arrows. 
+     *
+     * @param aValue if ETrue, enable the arrows
+     *  if EFalse, disable the arrrows
+     */
+    virtual void ShowLeftScrollArrows(TBool aValue) = 0;
+    
+        /**
+     * enable/disable the rendering of the right Scroll Arrows. 
+     *
+     * @param aValue if ETrue, enable the arrows
+     *  if EFalse, disable the arrrows
+     */
+    virtual void ShowRightScrollArrows(TBool aValue) = 0;
+
+    /**
+     * enable/disable the rendering of the Vertical Scroll Arrows. 
+     *
+     * @param aValue if ETrue, enable the arrows
+     *                          if EFalse, disable the arrrows
+     */
+    virtual void ShowVerticalScrollArrows(TBool aValue) = 0;
+
+    /**
+     * enable/disable the rendering of the candidate ordinal numbers
+     *
+     * @param aValue if ETrue, enable the ordinals
+     *                          if EFalse, disable the ordinals
+     *
+     */
+    virtual void ShowCandidateOrdinals(TBool aValue) = 0;
+
+    /**
+     * This function returns the number of Candidates that are visible in the pane 
+     * in its current configuration.
+     *
+     * @return number of candidates that are currently visible
+     */
+    virtual TInt VisibleCandidateCount() const = 0;
+
+    /**
+     * Select the first visible item in the candidate buffer
+     *
+     * @return ETrue if success, EFalse if no items visible
+     *
+     */
+    virtual TBool SelectFirst() = 0;
+
+    /**
+     * Select the first visible phrase item in the candidate buffer
+     *
+     * @return ETrue if success, EFalse if no items visible
+     *
+     */
+    virtual TBool SelectFirstPhrase() = 0;
+    
+    /**
+     * Select the last visible item in the candidate buffer
+     *
+     * @return ETrue if success, EFalse if no items visible
+     *
+     */
+    virtual TBool SelectLast() = 0;
+
+    /**
+     * Select the last visible phrase item in the candidate buffer
+     *
+     * @return ETrue if success, EFalse if no items visible
+     *
+     */
+    virtual TBool SelectLastPhrase() = 0;
+
+    /**
+     * Select the next visible item
+     *
+     * @return ETrue if success, 
+     *              EFalse if no items visible, or if already on last visible item
+     */
+    virtual TBool SelectNext() = 0;
+    /**
+     * Select the previous visible item
+     *
+     * @return ETrue if success, 
+     *              EFalse if no items visible, or if already on first visible item
+     */
+    virtual TBool SelectPrev() = 0;
+
+    /**
+     * This function selects the given index. 
+     * <p> Note that if the new selected index is within the visible count, 
+     * but falls on a candidate that is not valid (i.e. if it falls outside the
+     * length of the candidate buffer) then nothing happens and EFalse is returned
+     *
+     * @param aIndex If aIndex falls outside length of candidate buffer, 
+     *                          then return EFalse to indicate failure. 
+     * @return ETrue if index was valid, EFalse if index not valid
+     */
+    virtual TBool SelectIndex(TInt aIndex, TBool selected = ETrue) = 0;
+
+    /**
+     * This function returns the selected index of the Candidate Pane. 
+     * 
+     * @return the index of the selected item. If the Pane is not highlighted it returns 0.
+     *
+     */
+    virtual TInt SelectedIndex() const = 0;
+    
+    /**
+     * This function returns the character at index of the current selection
+     *
+     * @return a descrptor containing the character that is currently selected.
+     *              If the currect selection falls outside the length of the current buffer,
+     *              then return a null descriptor
+     *
+     */
+    virtual TPtrC CurrentCandidate() const = 0;
+    /**
+     * This function returns the phrase at index of the current selection
+     *
+     * @return a descrptor containing the character that is currently selected.
+     *              If the currect selection falls outside the length of the current buffer,
+     *              then return a null descriptor
+     *
+     */
+    virtual TPtrC CurrentPhraseCandidate() const = 0;
+    /**
+	*	Split phrase candidates into pages 
+	*/
+    virtual void SplitPhraseCandidatesIntoPages() = 0;
+  
+    /**
+	*	Navigate to next page 
+	*/
+    virtual void NextCandidatePage(void) = 0;
+   
+    /**
+	*	Navigate to previous page 
+	*/
+    virtual void PreviousCandidatePage(void) = 0;
+
+    /**
+	*	Return candidate array 
+	*/
+    virtual CDesCArrayFlat* CandidateArray(void) = 0;
+
+    /**
+	*	Set phrase candidate buffer
+	*/
+    virtual void SetCandidateBuffer(void) = 0;
+
+	/**
+	*	Reset candidate pane state and variables
+	*/
+	virtual void ResetCandidateState() = 0;
+	
+	/**
+	 *	To test whether current page is the first page
+	 */
+	virtual TBool IsFirstPage() = 0;
+	
+	/**
+	 *	To test whether current page is the last page
+	 */
+	virtual TBool IsLastPage() = 0;
+
+   /**
+     *  To set all the cnadidate label invisible(phrase creation)
+     */
+    virtual void SetInVisiable() = 0;
+
+	/**
+	 *	To test whether need to get new candidate page
+	 */
+	virtual TBool NeedGetNewCandidatePage() = 0;
+    };
+
+#endif //__AKN_FEP_CANDIDATE_PANE_H__
+
+// End of file