DIRECTORY Char USING [XCHAR], ImagerFont USING [Font], ImagerColor USING [Color], Tioga USING [Looks]; NodeStyle: CEDAR DEFINITIONS ~ BEGIN Style: TYPE ~ REF StyleBody; StyleBody: TYPE ~ PACKED RECORD [ kind: StyleKind ¬ screen, fontFace: FontFace ¬ Regular, fontAlphabets: FontAlphabets ¬ CapsAndLower, strikeout: FontUnderlining ¬ None, underlining: FontUnderlining ¬ None, lineFormatting: LineFormatting ¬ FlushLeft, lastLineFormatting: LineFormatting ¬ FlushLeft, pathType: PathType ¬ Filled, isComment: BOOL ¬ FALSE, -- set to node.comment; readonly for style rules nestingLevel: NAT ¬ 0, -- node level in tree; readonly for style rules fixedTabs: BOOL ¬ FALSE, -- true if stops at fixed locations. else relative to left margin numTabStops: NAT ¬ 0, -- length of the tabStops list defaultTabStops: TabStop ¬ NIL, -- if NIL, use 0.5 in flushLeft blank defaultTabStops tabStops: LIST OF TabStop ¬ NIL, -- kept sorted by decreasing location (right to left on page) name: ARRAY NameParam OF ATOM ¬ ALL[NIL], real: PACKED ARRAY RealParam OF RealCode ¬ ALL[0], dataList: DataList ¬ NIL -- for special parameters ]; Ref: TYPE ~ Style; -- synonym for compatibility StyleKind: TYPE ~ { screen, print, base }; MaxNestingLevel: NAT ~ NAT.LAST; MaxTabStops: NAT ~ NAT.LAST; NameParam: TYPE ~ { style, -- name of the style, such as "TechnicalNote" fontPrefix, -- prefix of interpress hierarchical name for font, e.g. Xerox/xc1-1-1/ fontFamily, -- name of the font family, such as "Helvetica" textNamedColor, -- name of color for text areaNamedColor, -- name of color for filled areas in graphics styles outlineNamedColor, -- name of color for outlines in graphics styles underlineNamedColor, -- name of color for underline strikeoutNamedColor, -- name of color for strikeout outlineBoxNamedColor, -- name of color for outline boxes backgroundNamedColor, -- name of color for background hyphenation -- kind of hyphenation applied to node }; RealParam: TYPE ~ { freeVar, fontSize, -- in points letterspacing, -- distance added between each character letterspacingStretch, letterspacingShrink, hshift, -- distance to offset text, positive to the right vshift, -- distance to raise text above baseline (can be negative) tabStops, -- tab spacing in points (for typewriter-style tab stops) textRotation, textHue, -- color for text textSaturation, textBrightness, leftIndent, -- all lines indent this much on left rightIndent, -- all lines indent this much on right firstIndent, -- first line indent this much more on left firstIndentRight, -- first line indent this much more on the right restIndent, -- other lines indent this much more on left runaroundLeft, -- depth of first indent on the left runaroundRight, -- depth of first indent on the right topIndent, -- top line at least this much down from top of viewer/page bottomIndent, -- bottom baseline at least this up from bottom of page minLineGap, -- min distance between line top and previous bottom (can be negative) leading, -- distance between baselines leadingStretch, leadingShrink, topLeading, -- min distance from first baseline to previous topLeadingStretch, topLeadingShrink, bottomLeading, -- min distance from last baseline to next bottomLeadingStretch, bottomLeadingShrink, areaHue, -- color for filled areas areaSaturation, areaBrightness, outlineHue, -- color for outlines outlineSaturation, outlineBrightness, lineWeight, -- width of graphics lines pageWidth, pageLength, leftMargin, rightMargin, topMargin, bottomMargin, headerMargin, footerMargin, bindingMargin, lineLength, columns, -- number of columns pagebreak, -- glue added between pages (well sort of) pagebreakStretch, pagebreakShrink, pageBreakPenalty, -- penalty for breaking inside node pageBreakAfterFirstLinePenalty, -- penalty for breaking node after its first line pageBreakBeforeLastLinePenalty, -- penalty for breaking node before its last line pageBreakBeforeFirstLinePenalty, -- penalty for breaking before first line of node pageBreakAfterLastLinePenalty, -- penalty for breaking after last line of node underlineThickness, -- width of the rule drawn under characters underlineDescent, -- positive offset to position bottom of underline below the baseline underlineHue, -- color for underlines underlineSaturation, underlineBrightness, strikeoutThickness, -- width of the rule drawn through characters strikeoutAscent, -- positive offset to position bottom of strikeout above the baseline strikeoutHue, -- color for strikeouts strikeoutSaturation, strikeoutBrightness, outlineBoxThickness, -- width of the rule drawn around text outlineBoxBearoff, -- positive distance between the font box for text and the outline outlineBoxHue, -- color for outlineBox outlineBoxSaturation, outlineBoxBrightness, backgroundAscent, -- positive offset to position top of background above the baseline backgroundDescent, -- positive offset to position bottom of background below the baseline backgroundHue, -- color for backgrounds backgroundSaturation, backgroundBrightness, hyphenCode, -- character code for hyphen maxVerticalExpansion, -- insert extra fil if vertical expansion ratio would exceed this maxHorizontalExpansion -- don't stretch spaces by more than this amount }; RealCode: TYPE ~ [0..255] ¬ 0; zero: RealCode ~ 0; DataList: TYPE ~ REF DataEntry; OfEntry: TYPE ~ { object, real, tab }; DataEntry: TYPE ~ RECORD [ next: DataList, data: SELECT kind:OfEntry FROM object => [ name: ATOM, -- name of the parameter object: REF -- value of the parameter ], real => [ -- for real values which overflow the table of common values param: RealParam, -- which one it is value: REAL ¬ 0.0, -- the value valueI: INTEGER -- the value rounded to an integer ], tab => [ -- for real values from tabspecs which overflow the table of common values tabStop: TabStop, -- which tab stop it is which: TabRealParam, -- which value for the tab stop it is value: REAL ¬ 0.0, -- the value valueI: INTEGER -- the value rounded to an integer ] ENDCASE ]; TabRealParam: TYPE ~ { loc, spacing, weight, vshift }; TabStop: TYPE ~ REF TabStopRec; LeaderTabStop: TYPE ~ REF leaders TabStopRec; RuleTabStop: TYPE ~ REF rule TabStopRec; RulesTabStop: TYPE ~ REF rules TabStopRec; TabStopRec: TYPE ~ RECORD [ looks: Tioga.Looks, -- the default looks for the stop loc: RealCode, -- the location of the stop alignment: TabAlign ¬ FlushLeft, -- how the tab is aligned alignmentChar: CHAR ¬ 0C, -- only of interest if alignment = Character breakIfPast: BOOL ¬ FALSE, -- what to do if you are already beyond the tab stop fill: SELECT fillKind:OfTabFill FROM blank => [], leaders => [ congruent: BOOL ¬ TRUE, -- otherwise, centered char: CHAR ¬ 0C, -- the character to be repeated spacing: RealCode -- the distance between repetitions ], rule => [ weight: RealCode, -- the thickness of the rule vshift: RealCode -- the distance up from the baseline to the bottom of the rule ], rules => [ rules: TabArray -- array of records with weight and vshift for each rule ], ENDCASE ]; TabAlign: TYPE ~ { FlushLeft, FlushRight, Centered, Character }; OfTabFill: TYPE ~ { blank, leaders, rule, rules }; TabArray: TYPE ~ REF TabArrayRec; TabArrayRec: TYPE ~ RECORD[ array: SEQUENCE length: CARDINAL OF RECORD[weight, vshift: RealCode] ]; FontFace: TYPE ~ { Regular, Bold, Italic, BoldItalic }; FontAlphabets: TYPE ~ { CapsAndLower, CapsAndSmallCaps, LowerOnly, CapsOnly }; FontUnderlining: TYPE ~ { None, LettersAndDigits, Visible, All }; LineFormatting: TYPE ~ { FlushLeft, FlushRight, Justified, Centered }; PathType: TYPE ~ { Filled, Outlined, FilledAndOutlined }; PointsPerPica: REAL; PointsPerInch: REAL; PointsPerCentimeter: REAL; PointsPerMillimeter: REAL; PointsPerDidot: REAL; PointsPerFil: REAL; PointsPerFill: REAL; PointsPerFilll: REAL; GetReal: PROC [ref: Style, param: RealParam] RETURNS [REAL]; GetInt: PROC [ref: Style, param: RealParam] RETURNS [INTEGER]; RealInit0: TYPE ~ REAL ¬ 0.0; realArray: REF ARRAY RealCode OF RealInit0; -- array of distances intArray: REF ARRAY RealCode OF INTEGER; overflow: RealCode ~ LAST[RealCode]; realTableOverflow: ERROR; IntegerValue: PROC [value: REAL ¬ 0.0] RETURNS [INTEGER]; EnterReal: PROC [value: REAL ¬ 0.0] RETURNS [code: RealCode]; SetReal: PROC [ref: Style, param: RealParam, value: REAL ¬ 0.0]; GetName: PROC [s: Style, param: NameParam] RETURNS [ATOM] ~ INLINE { RETURN [s.name[param]] }; SetName: PROC [s: Style, param: NameParam, value: ATOM] ~ INLINE { s.name[param] ¬ value }; GetFontFace: PROC [s: Style] RETURNS [FontFace] ~ INLINE { RETURN [s.fontFace] }; GetFontAlphabets: PROC [s: Style] RETURNS [FontAlphabets] ~ INLINE { RETURN [s.fontAlphabets] }; GetUnderlining: PROC [s: Style] RETURNS [FontUnderlining] ~ INLINE { RETURN [s.underlining] }; GetStrikeout: PROC [s: Style] RETURNS [FontUnderlining] ~ INLINE { RETURN [s.strikeout] }; GetLineFormatting: PROC [s: Style] RETURNS [LineFormatting] ~ INLINE { RETURN [s.lineFormatting] }; GetLastLineFormatting: PROC [s: Style] RETURNS [LineFormatting] ~ INLINE { RETURN [s.lastLineFormatting] }; GetHyphenChar: PROC [s: Style] RETURNS [Char.XCHAR] ~ INLINE { RETURN [VAL[MAX[GetInt[s, hyphenCode], 0]]] }; GetTabLoc: PROC [stop: TabStop, s: Style] RETURNS [REAL]; GetTabLocI: PROC [stop: TabStop, s: Style] RETURNS [INTEGER]; GetTabLeaderSpacing: PROC [stop: LeaderTabStop, s: Style] RETURNS [REAL]; GetTabLeaderSpacingI: PROC [stop: LeaderTabStop, s: Style] RETURNS [INTEGER]; GetTabRuleWeight: PROC [stop: RuleTabStop, s: Style] RETURNS [REAL]; GetTabRuleWeightI: PROC [stop: RuleTabStop, s: Style] RETURNS [INTEGER]; GetTabRuleVShift: PROC [stop: RuleTabStop, s: Style] RETURNS [REAL]; GetTabRuleVShiftI: PROC [stop: RuleTabStop, s: Style] RETURNS [INTEGER]; GetTabRealCode: PROC [ref: Style, stop: TabStop, which: TabRealParam, value: REAL ¬ 0.0] RETURNS [code: RealCode]; GetRulesTabCount: PROC [stop: RulesTabStop] RETURNS [count: INTEGER]; -- number of rules GetRulesTabInfo: PROC [stop: RulesTabStop, num: INTEGER] RETURNS [weight, vshift: REAL]; GetRulesTabInfoI: PROC [stop: RulesTabStop, num: INTEGER] RETURNS [weight, vshift: INTEGER]; GetFont: PROC [style: Style] RETURNS [ImagerFont.Font]; GetSpaceWidth: PROC [style: Style] RETURNS [REAL]; ColorParam: TYPE ~ {text, underline, strikeout, outlineBox, background, area, outline}; GetColor: PROC [style: Style, param: ColorParam] RETURNS [ImagerColor.Color]; ConsDataListObject: PROC [name: ATOM, object: REF, dataList: DataList] RETURNS [DataList]; END. r NodeStyle.mesa Copyright Σ 1985, 1986, 1988, 1991, 1992 by Xerox Corporation. All rights reserved. Written by Bill Paxton, January 1981 Last changed by Bill Paxton, December 1, 1982 8:37 am Plass, March 14, 1985 4:47:24 pm PST Beach, March 23, 1985 5:16:53 pm PST Michael Plass, May 20, 1985 8:01:47 pm PDT Doug Wyatt, February 27, 1992 4:29 pm PST Style Record Definitions this order substantially reduces allocations during the creation of the list since styles tend to define tab stops in increasing order, so can add to start of list and list additions must be non-destructive of the previous list. since length of list is given, can easily find the nth stop. special variable used for extensions miscellaneous font and positioning indent parameters leading parameters graphics page layout parameters penalty parameters for page layout underline strikeout outlineBox background other Numeric style parameters safely rounds the real value to an integer determine the code for this real value set the parameter to have this real value Non-numeric style parameters Tab stop info For num in [0..RulesTabCount), returns the weight and vshift values for that rule. Font info Gets the font for the given style. Returns the width of a space in the font for the given style. Color info Looks for -NamedColor first, then tries -Hue, -Saturation, -Brightness. 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