MAknPictographDrawer Class Reference

API published in: S60 2nd Ed FP 2

Link against: aknpictograph.lib

Capability Information

Required Capabilities

None

#include <aknpictographdrawerinterface.h>

Detailed Description

Pictograph drawer interface.

Public Member Functions

virtual ~MAknPictographDrawer ()
 Destructor.
virtual HBufC * SupportedPictographCodesL () const =0
 Returns a heap descriptor filled with all supported pictograph codes.
virtual TBool IsPictograph (TText aCode) const =0
 Tells whether the character is in the pictograph code range.
virtual TBool ContainsPictographs (const TDesC &aText) const =0
 Tells whether the text contains any pictographs.
virtual void DrawPictograph (CBitmapContext &aGc, const TPoint &aTopLeft, TText aCode, TAknPictographHeight aHeight) const =0
 Draws pictograph bitmap in the given position.
virtual void DrawPictograph (CBitmapContext &aGc, const TRect &aRect, TText aCode, TAknPictographHeight aHeight) const =0
 Draws pictograph bitmap centered in the given rect.
virtual void DrawPictograph (CBitmapContext &aGc, const TRect &aRect, const TRect &aClipRect, TText aCode, TAknPictographHeight aHeight) const =0
 Draws pictograph bitmap centered in the given rect, clipped with clipping rect.
virtual void DrawText (CBitmapContext &aGc, const CFont &aFont, const TDesC &aText, const TPoint &aPosition) const =0
 Draws text using CGraphicsContext::DrawText and then draws pictographs on top of that.
virtual void DrawText (CBitmapContext &aGc, const CFont &aFont, const TDesC &aText, const TRect &aBox, TInt aBaselineOffset, CGraphicsContext::TTextAlign aAlignment=CGraphicsContext::ELeft, TInt aLeftMargin=0) const =0
 Draws text using CGraphicsContext::DrawText and then draws pictographs on top of that.
virtual void DrawPictographsInText (CBitmapContext &aGc, const CFont &aFont, const TDesC &aText, const TPoint &aPosition) const =0
 Draws pictographs that are encountered in the text.
virtual void DrawPictographsInText (CBitmapContext &aGc, const CFont &aFont, const TDesC &aText, const TRect &aBox, TInt aBaselineOffset, CGraphicsContext::TTextAlign aAlignment=CGraphicsContext::ELeft, TInt aLeftMargin=0) const =0
 Draws pictographs that are encountered in the text.
virtual TBool IsAnimated (TText aCode, TAknPictographHeight aHeight) const =0
 Tells whether the given pictograph is animated or not.
virtual TInt SelectPictographHeightForFont (const CFont &aFont, TAknPictographHeight &aHeight) const =0
 Tries to find a matching pictograph height for a given font.
virtual TAknPictographDrawingMode SetPictographDrawingMode (TAknPictographDrawingMode aDrawingMode)=0
 Sets the pictograph drawing mode for DrawPictograph calls.

Constructor & Destructor Documentation

virtual MAknPictographDrawer::~MAknPictographDrawer (   )  [inline, virtual]
 

Destructor.

Member Function Documentation

virtual TBool MAknPictographDrawer::ContainsPictographs ( const TDesC &  aText  )  const [pure virtual]
 

Tells whether the text contains any pictographs.

Parameters:
aText Text.
Returns:
ETrue if the text contains any pictographs, EFalse if not.
virtual void MAknPictographDrawer::DrawPictograph ( CBitmapContext &  aGc,
const TRect &  aRect,
const TRect &  aClipRect,
TText  aCode,
TAknPictographHeight  aHeight
)  const [pure virtual]
 

Draws pictograph bitmap centered in the given rect, clipped with clipping rect.

This method sets aGc to use CGraphicsContext::ENullBrush.

Parameters:
aGc Graphics context.
aRect Rectangle, where the pictograph is centered in.
aClipRect Clipping rectangle.
aCode Pictograph code in Unicode.
aHeight Pictograph height.
virtual void MAknPictographDrawer::DrawPictograph ( CBitmapContext &  aGc,
const TRect &  aRect,
TText  aCode,
TAknPictographHeight  aHeight
)  const [pure virtual]
 

Draws pictograph bitmap centered in the given rect.

This method sets aGc to use CGraphicsContext::ENullBrush.

Parameters:
aGc Graphics context.
aRect Rectangle, where the pictograph is centered in.
aCode Pictograph code in Unicode.
aHeight Pictograph height.
virtual void MAknPictographDrawer::DrawPictograph ( CBitmapContext &  aGc,
const TPoint &  aTopLeft,
TText  aCode,
TAknPictographHeight  aHeight
)  const [pure virtual]
 

Draws pictograph bitmap in the given position.

This method sets aGc to use CGraphicsContext::ENullBrush.

Parameters:
aGc Graphics context.
aTopLeft Top left coordinates of the rendering position .
aCode Pictograph code in Unicode.
aHeight Pictograph height.
virtual void MAknPictographDrawer::DrawPictographsInText ( CBitmapContext &  aGc,
const CFont &  aFont,
const TDesC &  aText,
const TRect &  aBox,
TInt  aBaselineOffset,
CGraphicsContext::TTextAlign  aAlignment = CGraphicsContext::ELeft,
TInt  aLeftMargin = 0
)  const [pure virtual]
 

Draws pictographs that are encountered in the text.

This method sets aGc to use CGraphicsContext::ENullBrush.

Parameters:
aGc Graphics context.
aFont Used font.
aText Text.
aBox Rectangle, where the text is rendered.
aBaselineOffset Offset from the top of the rectangle to the baseline to the text.
aAlignment Text alignment.
aLeftMargin The left margin for left-aligned text, or the right margin for right-aligned text
virtual void MAknPictographDrawer::DrawPictographsInText ( CBitmapContext &  aGc,
const CFont &  aFont,
const TDesC &  aText,
const TPoint &  aPosition
)  const [pure virtual]
 

Draws pictographs that are encountered in the text.

Suitable pictograph height is chosen based on aFont. This method sets aGc to use CGraphicsContext::ENullBrush.

Parameters:
aGc Graphics context.
aFont Used font.
aText Text.
aPosition Text baseline coordinates of the starting position.
virtual void MAknPictographDrawer::DrawText ( CBitmapContext &  aGc,
const CFont &  aFont,
const TDesC &  aText,
const TRect &  aBox,
TInt  aBaselineOffset,
CGraphicsContext::TTextAlign  aAlignment = CGraphicsContext::ELeft,
TInt  aLeftMargin = 0
)  const [pure virtual]
 

Draws text using CGraphicsContext::DrawText and then draws pictographs on top of that.

Suitable pictograph height is chosen based on aFont.

The graphics context aGc must be set to use font aFont before calling this method.

This method sets aGc to use CGraphicsContext::ENullBrush.

Parameters:
aGc Graphics context.
aFont Used font.
aText Text.
aBox Rectangle, where the text is rendered.
aBaselineOffset Offset from the top of the rectangle to the baseline to the text.
aAlignment Text alignment.
aLeftMargin The left margin for left-aligned text, or the right margin for right-aligned text
virtual void MAknPictographDrawer::DrawText ( CBitmapContext &  aGc,
const CFont &  aFont,
const TDesC &  aText,
const TPoint &  aPosition
)  const [pure virtual]
 

Draws text using CGraphicsContext::DrawText and then draws pictographs on top of that.

Suitable pictograph height is chosen based on aFont.

The graphics context aGc must be set to use font aFont before calling this method.

This method sets aGc to use CGraphicsContext::ENullBrush.

Parameters:
aGc Graphics context.
aFont Used font.
aText Text.
aPosition Text baseline coordinates of the starting position.
virtual TBool MAknPictographDrawer::IsAnimated ( TText  aCode,
TAknPictographHeight  aHeight
)  const [pure virtual]
 

Tells whether the given pictograph is animated or not.

Parameters:
aCode Pictograph code in Unicode.
virtual TBool MAknPictographDrawer::IsPictograph ( TText  aCode  )  const [pure virtual]
 

Tells whether the character is in the pictograph code range.

Parameters:
aCode Character code in Unicode.
Returns:
ETrue if in pictograph code range, EFalse if not.
virtual TInt MAknPictographDrawer::SelectPictographHeightForFont ( const CFont &  aFont,
TAknPictographHeight &  aHeight
)  const [pure virtual]
 

Tries to find a matching pictograph height for a given font.

Parameters:
aFont Used font.
aHeight Pictograph height.
Returns:
KErrNone if a supported pictograph height is found that matches aFont otherwise returns KErrNotSupported
virtual TAknPictographDrawingMode MAknPictographDrawer::SetPictographDrawingMode ( TAknPictographDrawingMode  aDrawingMode  )  [pure virtual]
 

Sets the pictograph drawing mode for DrawPictograph calls.

Other functions e.g. DrawText, etc are unaffected by this function. The drawing mode is set to EDrawingModeNormal by default. Note: When drawing mode EDrawingModeWhite is set only a single DrawPictograph call is supported per component->Draw() call.

Parameters:
aDrawingMode the new pictograph drawing mode to be used.
Returns:
the value of the previous pictograph drawing mode.
virtual HBufC* MAknPictographDrawer::SupportedPictographCodesL (   )  const [pure virtual]
 

Returns a heap descriptor filled with all supported pictograph codes.

They are sorted in ascending pictograph code order. Ownership of the returned object is transferred to the caller.

Returns:
Heap descriptor filled with all supported pictograph codes.
The documentation for this class was generated from the following file:
Copyright © Nokia Corporation 2001-2008
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