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<C Bold Underline FontHeight=400>Overview

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<C FontHeight=200 !Bold !Underline>The EditableText class hierarchy provides

 instantiable classes for editing and storing text.  The choice of which 

 class to use depends on your requirements of text editing.

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<C Bold StrikeThrough FontHeight=350>Usage

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Two instantiable editable text classes are supplied:

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GlobalText

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RichText

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and each case, there is a choice of physical implementation:

<P Indent=700>Flat storage

<P>Segemented storage.

<P Indent=0>Flat storage is most efficient when there is little text to be stored, or in the case where little or no editing will take place on the stored text.

<P>Segmented storage is most efficient where large quantities of text are to be stored, or where the text has a large dynamic content.

<P>The rich text class supports:

<P Indent=700>paragraph styles

<P>character styles

<P>explicit paragraph & character formatting

<P>embedded pictures etc... (See the spec).

<P Indent=0>In contrast, global text applies a<C Bold Italic> single <C !Bold !Italic>paragraph/character style to the entire contents of the document.

<P>Global text is best used for edit boxes, whereas rich text applications include the word processor and agenda entries, to name but two.

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<C Bold Underline FontHeight=450>CEditableText Methods<C !Bold !Underline>

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<C Bold>ConstructL                                                                                                Phase2 construction<C !Bold>

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<C Bold>void ConstructL(TDocumentStorage aStorage);<C !Bold>

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All calls to a document constructor must be followed by an explicit call to the<C Underline> ConstructL <C !Underline>method.  This method completes the 2 phase object construction favoured by Epoc.  The parameter<C Italic Underline> aStorage <C !Ita

lic !Underline>defines which implementation to use.  The type<C Underline> TDocumentStorage <C !Underline>is defined in<C Underline> EDITTEXT.H <C !Underline>as follows:

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<C Bold>enum TDocumentStorage {EFlat,ESegmented};<C !Bold>

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This method may leave.  A complete example of document construction is provided below:

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<C Bold>CEditableText* document=new(ELeave) CGlobalText;

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document->ConstructL(ESegmented);  // Leaves if construction fails.<C !Bold>

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A mandatory part of the ConstructL method inserts an end-of-document character into the document.  This character is not included in the DocumentLength method.