1 /*

     2 * Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Declaration of customized editor control.

    15 *

    16 */

    17 

    18 

    19 #ifndef NPDEDWINBASE_H

    20 #define NPDEDWINBASE_H

    21 

    22 #include "NpdEdwinExposer.h"

    23 

    24 // INCLUDES

    25 #include <eikedwin.h> //CEikEdwin

    26 // FORWARD DECLARATIONS

    27 #include <eikedwob.h>

    28 

    29 

    30 class CNotepadEdwinLines;

    31 class CAknsFrameBackgroundControlContext;

    32 class CAknsBasicBackgroundControlContext;

    33 class CEikDialog;

    34 

    35 // CLASS DECLARATION

    36 /**

    37 * Customized editable window control.

    38 * CNotepadEdwin is an editable window control class customized to implement

    39 * the LAF of Notepad.

    40 *  

    41 * @lib NpdLib.lib

    42 * @see CNotepadEditorDialog

    43 */

    44 NONSHARABLE_CLASS(CNotepadEdwinBase) : public CBase,

    45     public MEikEdwinObserver

    46     {

    47     public: // New function

    48 

    49         /**

    50         * Constructor

    51         *

    52         */

    53          CNotepadEdwinBase();

    54         

    55         /**

    56  	* Destructor.

    57         *

    58         */

    59 	~CNotepadEdwinBase();

    60 	

    61         /**

    62         * Gets Edwin control from Derived class

    63         *

    64         */

    65         void Share(CEikEdwin* aEdwin, MNotepadEdwinExposer* aEdwinExposer);

    66 

    67         /**

    68         * Sets the layout of the edwin and the scrollbar.

    69         *

    70         */

    71         void DoEditorLayoutL();

    72 

    73         /**

    74         * Initialize the editor.

    75         * This function should be called from dialog's PostLayoutDynInitL.

    76         *

    77         */

    78         void InitNotepadEditorL( 

    79             CEikDialog* aParent,

    80             TBool aIsRichTextEditor, CNotepadEdwinLines* aEdwinLines);

    81 

    82         /**

    83         * Restrict format area of the editor to visible lines only.

    84         * This function calls iTextLayout->SetAmountToFormat().

    85         *

    86         */

    87         inline void SetAmountToFormat(TInt aDocumentSizeInCharacters);

    88 

    89         /**

    90  	* Gets an object whose type is encapsulated by 

    91  	* the specified TTypeUid object.

    92         *

    93         */

    94 	TBool SupplyMopObject(TTypeUid aId,TTypeUid::Ptr& aPtr);

    95 

    96     protected:  // Functions from base classes

    97 

    98         /**

    99         * From MEikEdwinObserver.

   100         * Override to implement dynamically changing decoration.

   101         *

   102         * @param aEdwin edwin to observe

   103         * @param aEventType type of edwin event.

   104         */

   105         void HandleEdwinEventL(CEikEdwin* aEdwin, TEdwinEvent aEventType);

   106 

   107     public:

   108         /**

   109         * Set background color specified by LAF.

   110         */

   111         void SetBackgroundColorL();

   112 

   113        // Functions from base classes

   114 

   115         /**

   116         * From CCoeControl.

   117         * Call when a certain resource has changed.

   118         * @param aType type of event.

   119         */

   120         void HandleResourceChange(TInt aType);

   121         

   122         /**

   123         * From CCoeControl.

   124         * Call when a certain resource has changed.

   125         * We only handle KEikColorResourceChange.

   126         *

   127         * @param aType type of event.

   128         */

   129         void Draw(const TRect& aRect) const;

   130     

   131     private:

   132     	

   133     	/**

   134     	* Updates the scroll layout

   135     	*/

   136     	void UpdateScrollLayout();

   137 		

   138     private: // Data

   139     	TRect iBackgroundRect;

   140 	CEikDialog*iParent;

   141 	CEikEdwin* iEdwin; //not own

   142        	MNotepadEdwinExposer* iEdwinExposer; //not own

   143        	CNotepadEdwinLines* iEdwinLines; // not own

   144 	CAknsFrameBackgroundControlContext* iBgContext; // Owned

   145 	CAknsBasicBackgroundControlContext* iSkinContext;

   146 	TBool iIsRichTextEditor;

   147     TBool iIsFirstTimeDrawEditor;

   148     TInt iTextLength;

   149     TInt iPreTextLength;

   150     

   151     TPoint iPointAtCursor;

   152     TInt iLineNumByYCoordinate;

   153     TInt iPreLineNumByYCoordinate;

   154     };

   155 

   156 #include "NpdEdwinBase.inl"

   157 #endif // NPDEDWIN_H

   158 

   159 // End of File