Class TFindWidthOfWidestTextItem

class TFindWidthOfWidestTextItem;

Description

Finds the width in pixels of the widest item in a range of indexed text items.

This is the base class for several classes used to get the maximum width for date and time components.

Derived classes should override the pure virtual methods to supply an appropriate range of items.

Members

Defined in TFindWidthOfWidestTextItem:

• GetFirstAndLastIndex(TInt &,TInt &)constGets the first and last index in the range of items.
• GetTextItem(TDes &,TInt)constGets the text item at the specfied index.
• MaximumWidthInPixels(const CFont &)constGets the width in pixels of the widest item in the range, using the specified fo...
• TFindWidthOfWidestTextItem()Default constructor.

protected: inline TFindWidthOfWidestTextItem();

Description

Default constructor.

IMPORT_C TInt MaximumWidthInPixels(const CFont &aFont) const;

Description

Gets the width in pixels of the widest item in the range, using the specified font.

Parameters

const CFont &aFont The font.

Return value

TInt The maximum width.

private: virtual void GetFirstAndLastIndex(TInt &aFirstIndex, TInt &aLastIndex) const=0;

Description

Gets the first and last index in the range of items.

Parameters

TInt &aFirstIndex On return, the first index. TInt &aLastIndex On return, the last index.

private: virtual void GetTextItem(TDes &aText, TInt aIndex) const=0;

Description

Gets the text item at the specfied index.

Parameters

TDes16 &aText On return, the indexed text item. TInt aIndex The index.