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Diffstat (limited to 'macosx/QuartzTextLayout.h')
| -rw-r--r-- | macosx/QuartzTextLayout.h | 141 | 
1 files changed, 0 insertions, 141 deletions
| diff --git a/macosx/QuartzTextLayout.h b/macosx/QuartzTextLayout.h deleted file mode 100644 index d65d45290..000000000 --- a/macosx/QuartzTextLayout.h +++ /dev/null @@ -1,141 +0,0 @@ -/* - *  QuartzTextLayout.h - * - *  Original Code by Evan Jones on Wed Oct 02 2002. - *  Contributors: - *  Shane Caraveo, ActiveState - *  Bernd Paradies, Adobe - * - */ - -#ifndef _QUARTZ_TEXT_LAYOUT_H -#define _QUARTZ_TEXT_LAYOUT_H - -#include <Carbon/Carbon.h> - -#include "QuartzTextStyle.h" - -class QuartzTextLayout -{ -public: -    /** Create a text layout for drawing on the specified context. */ -    QuartzTextLayout( CGContextRef context ) : layout( NULL ), unicode_string( NULL ), unicode_length( 0 ) -    { -        OSStatus err = ATSUCreateTextLayout( &layout ); -        if (0 != err) -                layout = NULL; - -        setContext(context); - -        ATSUAttributeTag tag = kATSULineLayoutOptionsTag; -        ByteCount size = sizeof( ATSLineLayoutOptions ); -        ATSLineLayoutOptions rendering = kATSLineUseDeviceMetrics; //| kATSLineFractDisable | kATSLineUseQDRendering -        ATSUAttributeValuePtr valuePtr = &rendering; -        err = ATSUSetLayoutControls( layout, 1, &tag, &size, &valuePtr ); -    } - -    ~QuartzTextLayout() -    { -        if (NULL != layout) -            ATSUDisposeTextLayout( layout ); -        layout = NULL; - -        if ( unicode_string != NULL ) -        { -            delete[] unicode_string; -            unicode_string = NULL; -            unicode_length = 0; -        } -    } - -    /** Assign a string to the text layout object. */ -    // TODO: Create a UTF8 version -    // TODO: Optimise the ASCII version by not copying so much -    OSStatus setText( const UInt8* buffer, size_t byteLength, CFStringEncoding encoding ) -    { -        if (NULL == layout) -                return -1; -        CFStringRef str = CFStringCreateWithBytes( NULL, buffer, byteLength, encoding, false ); -        if (!str) -            return -1; - -        unicode_length = CFStringGetLength( str ); -        if (unicode_string) -            delete[] unicode_string; -        unicode_string = new UniChar[ unicode_length ]; -        CFStringGetCharacters( str, CFRangeMake( 0, unicode_length ), unicode_string ); - -        CFRelease( str ); -        str = NULL; - -        OSStatus err; -        err = ATSUSetTextPointerLocation( layout, unicode_string, kATSUFromTextBeginning, kATSUToTextEnd, unicode_length ); -        if( err != noErr ) return err; - -        // Turn on the default font fallbacks -        return ATSUSetTransientFontMatching( layout, true ); -    } - -    inline void setText( const UInt8* buffer, size_t byteLength, const QuartzTextStyle& r ) -    { -        this->setText( buffer, byteLength, kCFStringEncodingUTF8 ); -        ATSUSetRunStyle( layout, r.getATSUStyle(), 0, unicode_length ); -    } - -    /** Apply the specified text style on the entire range of text. */ -    void setStyle( const QuartzTextStyle& style ) -    { -        ATSUSetRunStyle( layout, style.getATSUStyle(), kATSUFromTextBeginning, kATSUToTextEnd ); -    } - -    /** Draw the text layout into the current CGContext at the specified position, flipping the CGContext's Y axis if required. -    * @param x The x axis position to draw the baseline in the current CGContext. -    * @param y The y axis position to draw the baseline in the current CGContext. -    * @param flipTextYAxis If true, the CGContext's Y axis will be flipped before drawing the text, and restored afterwards. Use this when drawing in an HIView's CGContext, where the origin is the top left corner. */ -    void draw( float x, float y, bool flipTextYAxis = false ) -    { -        if (NULL == layout || 0 == unicode_length) -                return; -        if ( flipTextYAxis ) -        { -            CGContextSaveGState( gc ); -            CGContextScaleCTM( gc, 1.0, -1.0 ); -            y = -y; -        } -         -        OSStatus err; -        err = ATSUDrawText( layout, kATSUFromTextBeginning, kATSUToTextEnd, X2Fix( x ), X2Fix( y ) ); - -        if ( flipTextYAxis ) CGContextRestoreGState( gc ); -    } - -    /** Sets a single text layout control on the ATSUTextLayout object. -    * @param tag The control to set. -    * @param size The size of the parameter pointed to by value. -    * @param value A pointer to the new value for the control. -    */ -    void setControl( ATSUAttributeTag tag, ByteCount size, ATSUAttributeValuePtr value ) -    { -        ATSUSetLayoutControls( layout, 1, &tag, &size, &value ); -    } - -    ATSUTextLayout getLayout() { -        return layout; -    } - -    inline CFIndex getLength() const { return unicode_length; } -    inline void setContext (CGContextRef context) -    { -        gc = context; -        if (NULL != layout) -            setControl( kATSUCGContextTag, sizeof( gc ), &gc ); -    } - -private: -    ATSUTextLayout layout; -    UniChar* unicode_string; -    int unicode_length; -    CGContextRef gc; -}; - -#endif | 
