| 1 | %
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| 2 | % PostScript encapulator prolog file of the BLT "eps" canvas item.
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| 3 | %
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| 4 | % Copyright 1991-1997 Bell Labs Innovations for Lucent Technologies.
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| 5 | %
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| 6 | % Permission to use, copy, modify, and distribute this software and its
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| 7 | % documentation for any purpose and without fee is hereby granted, provided
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| 8 | % that the above copyright notice appear in all copies and that both that the
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| 9 | % copyright notice and warranty disclaimer appear in supporting documentation,
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| 10 | % and that the names of Lucent Technologies any of their entities not be used
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| 11 | % in advertising or publicity pertaining to distribution of the software
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| 12 | % without specific, written prior permission.
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| 13 | %
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| 14 | % Lucent Technologies disclaims all warranties with regard to this software,
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| 15 | % including all implied warranties of merchantability and fitness. In no event
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| 16 | % shall Lucent Technologies be liable for any special, indirect or
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| 17 | % consequential damages or any damages whatsoever resulting from loss of use,
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| 18 | % data or profits, whether in an action of contract, negligence or other
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| 19 | % tortuous action, arising out of or in connection with the use or performance
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| 20 | % of this software.
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| 21 | %
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| 22 |
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| 23 | %
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| 24 | % The definitions of the next two macros are from Appendix H of
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| 25 | % Adobe's "PostScript Language Reference Manual" pp. 709-736.
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| 26 | %
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| 27 |
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| 28 | % Prepare for EPS file
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| 29 |
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| 30 | /BeginEPSF {
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| 31 | /beforeInclusionState save def
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| 32 | /dictCount countdictstack def % Save the # objects in the dictionary
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| 33 | /opCount count 1 sub def % Count object on operator stack
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| 34 | userdict begin % Make "userdict" the current
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| 35 | % dictionary
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| 36 | /showpage {} def % Redefine showpage to be null
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| 37 | 0 setgray
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| 38 | 0 setlinecap
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| 39 | 1 setlinewidth
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| 40 | 0 setlinejoin
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| 41 | 10 setmiterlimit
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| 42 | [] 0 setdash
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| 43 | newpath
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| 44 | /languagellevel where {
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| 45 | pop languagelevel
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| 46 | 1 ne {
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| 47 | false setstrokeadjust false setoverprint
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| 48 | } if
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| 49 | } if
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| 50 | % note: no "end"
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| 51 | } bind def
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| 52 |
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| 53 | /EndEPSF { %def
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| 54 | count opCount sub {
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| 55 | pop
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| 56 | } repeat
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| 57 | countdictstack dictCount sub {
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| 58 | end % Clean up dictionary stack
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| 59 | } repeat
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| 60 | beforeInclusionState restore
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| 61 | } bind def
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| 62 |
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| 63 |
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| 64 | %
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| 65 | % Set up a clip region based upon a bounding box (x1, y1, x2, y2).
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| 66 | %
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| 67 | /SetClipRegion {
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| 68 | % Stack: x1 y1 x2 y2
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| 69 | newpath
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| 70 | 4 2 roll moveto
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| 71 | 1 index 0 rlineto
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| 72 | 0 exch rlineto
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| 73 | neg 0 rlineto
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| 74 | closepath
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| 75 | clip
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| 76 | newpath
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| 77 | } def
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| 78 |
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