Legacy Document
Important: The information in this document is obsolete and should not be used for new development.
Important: The information in this document is obsolete and should not be used for new development.
Chapter 7 - QuickDraw GX Stream Format
This chapter describes the format of the compressed data stream that results when the QuickDraw GXGXFlattenShapefunction is used. It also describes the use of such data streams by print files and portable digital documents (PDDs). Read this chapter if you need to uncompress QuickDraw GX stream format data and cannot use the QuickDraw GXGXUnflattenShapefunction.Before reading this chapter, you should be familiar with the information in the chapters "Introduction to QuickDraw GX Objects" and "Shape Objects" in Inside Macintosh: QuickDraw GX Objects.
The
GXFlattenShapeandGXUnflattenShapefunctions and additional information about the objects contained in the data stream are described in Inside Macintosh: QuickDraw GX Objects. For more information on graphic shapes, see the shape-specific chapters in Inside Macintosh: QuickDraw GX Graphics. For more information on typographic shapes, see the shape-specific chapters in Inside Macintosh: QuickDraw GX Typography. For more information on print files and portable digital documents, see the chapter "Advanced Printing Features" of Inside Macintosh: QuickDraw GX Printing.This chapter first describes the QuickDraw GX stream format, print file organization, and portable digital documents. It then shows how you can
- use the GraphicsBug utility to flatten QuickDraw GX shapes
- analyze flattened shape data streams
- obtain information from a print file
Chapter Contents
- About QuickDraw GX Stream Format
- Characteristics
- Stream Design
- Operation Opcode Byte
- Operation Opcode
- Record Size
- Data Type Opcode Byte
- Compression Type Opcode
- Data Type Opcode
- Data Type Opcodes for a New Object
- Data Type Opcodes to Modify a Shape Object
- Data Type Opcodes to Modify a Style Object
- Data Type Opcodes to Modify an Ink Object
- Data Type Opcodes to Modify a Color Set Object
- Data Type Opcodes to Modify a Color Profile Object
- Data Type Opcodes to Modify a Transform Object
- Data
- Omit Byte Masks and Omit Byte Shifts
- Header Data
- New Shape Object Data
- Empty Shape Data
- Point Shape Data
- Line Shape Data
- Curve Shape Data
- Rectangle Shape Data
- Polygon Shape Data
- Path Shape Data
- Bitmap Shape Data
- Text Shape Data
- Glyph Shape Data
- Layout Shape Data
- Full Shape Data
- Picture Shape Data
- Modified Shape Object Data
- Attributes Data
- Tag Data
- Fill Data
- New Style Object Data
- Modified Style Object Data
- Attributes Data
- Tag Data
- Curve Error Data
- Pen Data
- Join Data
- Dash Data
- Caps Data
- Pattern Data
- Text Attributes Data
- Text Size Data
- Font Data
- Text Face Data
- Platform Data
- Font Variations Data
- Run Controls Data
- Run Priority Justification Override Data
- Run Glyph Justification Overrides Data
- Run Glyph Substitutions Data
- Run Features Data
- Run Kerning Adjustments Data
- Style Justification Data
- New Ink Object Data
- Modified Ink Object Data
- Attributes Data
- Tag Data
- Color Data
- Transfer Mode Data
- New Object Transform Data
- Modified Transform Object Data
- Reserved Opcode for Modified Transform Data
- Tag Data
- Clip Data
- Mapping Data
- Part Mask Data
- Tolerance Data
- New Color Profile Object Data
- Modified Color Profile Object Data
- Reserved Opcode for Modified Color Profile Data
- Color Profile Tag Data
- New Color Set Object Data
- Modified Color Set Object Data
- Reserved Opcode for Modified Color Set Data
- Color Set Tag Data
- New Tag Object Data
- New Bit Image Object Data
- New Font Name Data
- New Trailer Object Data
- About Print Files and Portable Digital Documents
- Print Files
- Portable Digital Documents
- Using QuickDraw GX Stream Format
- Flattening Shapes With GraphicsBug
- Analyzing the Data Streams of Flattened Shapes
- Creating a Picture With Seven Shapes
- Analyzing a Flattened Line Shape
- Analyzing a Flattened Rectangle Shape
- Analyzing a Flattened Curve Shape
- Analyzing a Flattened Path Shape
- Analyzing a Flattened Text Shape
- Analyzing a Flattened Polygon Shape
- Analyzing a Flattened Bitmap Shape
- Obtaining Data From a Print File
- QuickDraw GX Stream Format Reference
- Opcode Constants and Data Types
- Operation Opcode Byte
- Data Type Opcode Byte
- Generic Data Opcode
- Bit Image Compression Opcode Byte
- Modified Shape Data Opcodes
- Modified Style Data Opcodes
- Modified Ink Data Opcodes
- Modified Color Set Data Opcodes
- Modified Color Profile Data Opcodes
- Modified Transform Data Opcodes
- Bit Image Compression Opcodes
- Flatten Header Bytes
- Style Object Omit Byte Constants and Data Types
- Dash Style Omit Byte Masks and Shifts
- Pattern Style Omit Byte Masks and Shifts
- Join Style Omit Byte Masks and Shifts
- Cap Style Omit Byte Masks and Shifts
- Text Face Style Omit Byte Masks and Shifts
- Face Layer Omit Byte Masks and Shifts
- Ink Object Omit Byte Constants and Data Types
- Colors Omit Byte Masks and Shifts
- Transfer Omit Byte Masks and Shifts
- Transfer Component Omit Byte Masks and Shifts
- Shape Object Omit Byte Constants and Data Types
- Path Shape Omit Byte Masks and Shifts
- Bitmap Shape Omit Byte Masks and Shifts
- Bit Image Omit Byte Masks and Shifts
- Text Shape Omit Byte Masks and Shifts
- Glyph Shape Omit Byte Masks and Shifts
- Layout Shape Omit Byte Masks and Shifts
- Picture Shape Omit Byte Masks and Shifts
- QuickDraw GX Stream Format Summary
- Opcode Constants and Data Types
- Operation Opcode Byte
- Data Type Opcode Byte
- Generic Data Opcode
- Modified Shape Data Opcodes
- Modified Style Data Opcodes
- Modified Ink Data Opcodes
- Modified Color Set Data Opcodes
- Modified Color Profile Data Opcodes
- Modified Transform Data Opcodes
- Bit Image Compression Opcodes
- Two Bit Compression Values
- Flatten Header Bytes
- Style Object Omit Byte Constants and Data Types
- Dash Style Omit Byte Masks and Shifts
- Pattern Style Omit Byte Masks and Shifts
- Join Style Omit Byte Masks and Shifts
- Cap Style Omit Byte Masks and Shifts
- Text Face Style Omit Byte Masks and Shifts
- Face Layer Omit Byte Masks and Shifts
- Ink Object Omit Byte Constants and Data Types
- Colors Omit Byte Masks and Shifts
- Transfer Omit Byte Masks and Shifts
- Transfer Component Omit Byte Masks and Shifts
- Shape Object Omit Byte Constants and Data Types
- Path Shape Omit Byte Masks and Shifts
- Bitmap Shape Omit Byte Masks and Shifts
- Bit Image Omit Byte Masks and Shifts
- Text Shape Omit Byte Masks and Shifts
- Glyph Shape Omit Byte Masks and Shifts
- Layout Shape Omit Byte Masks and Shifts
- Picture Shape Omit Byte Masks and Shifts