DIRECTORY Imager USING [Context, Rectangle], ImagerDevice USING [CharMask, RunProc], ImagerManhattan USING [Polygon], ImagerPixelMap USING [PixelMap], ImagerTransformation USING [Transformation]; ImagerMaskCapture: CEDAR DEFINITIONS ~ BEGIN Context: TYPE ~ Imager.Context; Rectangle: TYPE ~ Imager.Rectangle; Transformation: TYPE ~ ImagerTransformation.Transformation; CharMask: TYPE ~ ImagerDevice.CharMask; RunProc: TYPE ~ ImagerDevice.RunProc; Manhattan: TYPE ~ ImagerManhattan.Polygon; PixelMap: TYPE ~ ImagerPixelMap.PixelMap; Capture: PROC [operator: PROC [Context], m: Transformation, r: REAL] RETURNS [CharMask]; CaptureBounds: PROC [operator: PROC [Context], m: Transformation] RETURNS [Rectangle]; Cant: SIGNAL [why: ATOM]; CaptureRuns: PROC [operator: PROC [Context], m: Transformation, run: RunProc]; CaptureBitmap: PROC [operator: PROC [Context], m: Transformation] RETURNS [PixelMap]; CaptureManhattan: PROC [operator: PROC [Context], m: Transformation] RETURNS [Manhattan]; END. ψImagerMaskCapture.mesa Copyright c 1985 by Xerox Corporation. All rights reserved. Michael Plass, May 16, 1985 3:46:51 pm PDT Doug Wyatt, May 19, 1985 4:10:14 pm PDT m is the transformation to device coordinates, with x~s and y~f. Returns NIL if the operator must be re-executed each time, and nothing can be said about the bounding box and/or width. Returns uncached variant if the operator cannot be cached for some reason (including tryForMask=FALSE), but its bounding box and width are known. Otherwise returns cached variant; raster IFF (size of raster rep) <= r*(size of runs rep). The font and char fields of the result are not filled in. Raised by the following whenever a situation is detected where the result would not be well-defined; ΚΏ˜codešœ™Kšœ Οmœ1™