DIRECTORYImagerColor USING [Color],ImagerPixelMap USING [DeviceRectangle],ImagerTransformation USING [Transformation],Vector2 USING [VEC];ImagerDevice: CEDAR DEFINITIONS~ BEGINColor: TYPE ~ ImagerColor.Color;DeviceRectangle: TYPE ~ ImagerPixelMap.DeviceRectangle;Transformation: TYPE ~ ImagerTransformation.Transformation;VEC: TYPE ~ Vector2.VEC;HalftoneParameters: TYPE ~ RECORD[dotsPerInch: REAL,angle: REAL, -- degrees anticlockwise from +x axisshape: REAL -- 0.5 is circular];RunProc: TYPE ~ PROC[sMin, fMin: INTEGER, fSize: NAT];Device: TYPE ~ REF DeviceRep;DeviceRep: TYPE ~ RECORD[class: Class,clipBox: DeviceRectangle, -- bounding rectangle, in device coordinatessurfaceToDevice: Transformation, -- transformation from surface to device coordinatessurfaceUnitsPerInch: VEC, -- x and y scale factorssurfaceUnitsPerPixel: NAT, -- surface resolution may be a multiple of pixel resolutiondata: REF];Class: TYPE ~ REF ClassRep;ClassRep: TYPE ~ RECORD[type: ATOM,SetColor: PROC[device: Device, color: Color, viewToDevice: Transformation],SetPriority: PROC[device: Device, priorityImportant: BOOL],SetHalftone: PROC[device: Device, halftone: HalftoneParameters],MaskRuns: PROC[device: Device, runs: PROC[RunProc]]];SetColor: PROC[device: Device, color: Color, viewToDevice: Transformation]~ INLINE { device.class.SetColor[device: device, color: color, viewToDevice: viewToDevice] };SetPriority: PROC[device: Device, priorityImportant: BOOL]~ INLINE { device.class.SetPriority[device: device, priorityImportant: priorityImportant] };SetHalftone: PROC[device: Device, halftone: HalftoneParameters]~ INLINE { device.class.SetHalftone[device: device, halftone: halftone] };MaskRuns: PROC[device: Device, runs: PROC[RunProc]]~ INLINE { device.class.MaskRuns[device: device, runs: runs] };END.   <  ImagerDevice.mesaCopyright c 1984 Xerox Corporation.  All rights reserved.Doug Wyatt, October 19, 1984 11:13:09 am PDTEstablish the color for following masks.Declare whether priority order is important for following masks.Set halftoning parameters.Apply the current color within the specified runs. ÊŠ  ˜ šœ™Jšœ
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