[Indigo]<Cedar>EditTool>EditToolBuilderImpl.mesa!9

-- EditToolBuilderImpl.mesa; Edited by Paxton on May 23, 1983 12:04 pm

-- Edited by McGregor on September 1, 1982 3:56 pm

Last Edited by: Plass, April 15, 1983 12:53 pm

DIRECTORY

EditToolBuilder,

EditToolPrivate,

Buttons,

Containers,

IO,

Labels,

MessageWindow,

Rope,

Rules,

TEditDocument,

TEditInput,

TEditOps,

TEditSelection,

TextEdit,

TextLooks,

TextNode,

VFonts,

ViewerClasses,

ViewerOps,

ViewerSpecs,

ViewerTools;

EditToolBuilderImpl: CEDAR PROGRAM

IMPORTS EditToolPrivate, Buttons, Containers, IO, Labels, MessageWindow, Rope, Rules, TEditInput, TEditOps, TEditSelection, TextEdit, TextNode, VFonts, ViewerOps, ViewerSpecs, ViewerTools

EXPORTS EditToolBuilder, EditToolPrivate =

{ OPEN ViewerSpecs, EditToolBuilder, EditToolPrivate;

----------------------------

ToNext: PUBLIC PROC [info: Layout, bigGap: BOOLEAN ← FALSE] = { OPEN info;

-- change entryLeft and heightSoFar to next "line" in container

entryLeft ← initLeft;

heightSoFar ← heightSoFar + entryHeight + entryVSpace;

IF bigGap THEN heightSoFar ← heightSoFar + entryVSpace/2 };

ToMiddle: PUBLIC PROC [info: Layout] = { OPEN info;

-- change entryLeft to middle of container

entryLeft ← 190 };

BuildBox: PROC [info: Layout, proc: Buttons.ButtonProc, clientData: REF ANY ← NIL, fork: BOOL ← FALSE, gapAfter: BOOL ← TRUE, border: BOOL ← FALSE]

RETURNS [button: Buttons.Button] = { OPEN info;

button ← Buttons.Create[

info: [name: NIL, parent: container, wx: entryLeft, wy: heightSoFar+2,

ww: entryHeight-2, wh: entryHeight-2, border: border],

proc: proc, clientData: clientData, fork: fork, paint: FALSE];

entryLeft ← entryLeft + button.ww;

IF gapAfter THEN entryLeft ← entryLeft + gapSize;

};

BuildButton: PUBLIC PROC [info: Layout, name: Rope.ROPE, proc: Buttons.ButtonProc, clientData: REF ANY ← NIL, fork: BOOL ← FALSE, gapAfter: BOOL ← TRUE, border: BOOL ← FALSE]

RETURNS [button: Buttons.Button] = { OPEN info;

button ← Buttons.Create[

info: [name: name, parent: container, wx: entryLeft, wy: heightSoFar, border: border],

proc: proc, clientData: clientData, fork: fork, paint: FALSE];

entryLeft ← entryLeft + button.ww;

IF gapAfter THEN entryLeft ← entryLeft + gapSize;

};

BuildLabel: PUBLIC PROC [info: Layout, name: Rope.ROPE, width: INTEGER ← 0]

RETURNS [label: Labels.Label] = { OPEN info;

label ← Labels.Create[info: [name: name, parent: container, border: FALSE,

wx: entryLeft, wy: heightSoFar+1, ww: width, wh: entryHeight], paint: FALSE];

entryLeft ← entryLeft + label.ww;

};

----------------------------

BuildPair: PUBLIC PROC [info: Layout, proc: Buttons.ButtonProc, flag: BOOL, l1, l2: Rope.ROPE,

clientData: REF ANY ← NIL, fork: BOOL ← FALSE]

RETURNS [label: Labels.Label, button: Buttons.Button] = { OPEN info;

w: INTEGER = MAX[

VFonts.StringWidth[l1],

VFonts.StringWidth[l2]];

button ← BuildBox[info, proc, clientData, fork, FALSE, TRUE];

label ← BuildLabel[info, IF flag THEN l1 ELSE l2, w+15];

};

----------------------------

BuildTriple: PUBLIC PROC [info: Layout, proc: Buttons.ButtonProc, state: [0..2], l0, l1, l2: Rope.ROPE,

clientData: REF ANY ← NIL, fork: BOOLEAN ← FALSE]

RETURNS [label: Labels.Label, button: Buttons.Button] = { OPEN info;

w: INTEGER = MAX[

VFonts.StringWidth[l0],

VFonts.StringWidth[l1],

VFonts.StringWidth[l2]];

labelRopes: ARRAY [0..2] OF Rope.ROPE = [l0,l1,l2];

button ← BuildBox[info, proc, clientData, fork, FALSE, TRUE];

label ← BuildLabel[info, labelRopes[state], w+15];

};

----------------------------

DataFieldButton: PUBLIC PROC [arg: ViewerClasses.Viewer, clear: BOOLEAN] = {

IF clear THEN ViewerTools.SetContents[arg, NIL]; -- clear contents of field

ViewerTools.SetSelection[arg, NIL]; -- make pending delete selection of field contents

};

SavePSel: PUBLIC PROC = {

IF ~EditToolPSel[] THEN prior^ ← TEditOps.GetSelData[]^ }; -- save it for later

FixPSel: PUBLIC PROC = { -- if pSel is in data field, restore prior

IF EditToolPSel[] AND TEditInput.CheckSelection[prior] THEN

TEditSelection.MakeSelection[prior, primary] };

EditToolPSel: PROC RETURNS [BOOL] = {

pSel: TEditDocument.Selection = TEditOps.GetSelData[];

RETURN [pSel # NIL AND pSel.viewer # NIL AND pSel.viewer.parent=editTool] };

prior: TEditDocument.Selection ← NEW [TEditDocument.SelectionRec];

BuildDataFieldPair: PUBLIC PROC [info: Layout, buttonRope: Rope.ROPE, buttonProc: Buttons.ButtonProc,

clientData: REF ANY ← NIL, lines: CARDINAL ← 2]

RETURNS [button: Buttons.Button, arg: ViewerClasses.Viewer] = { OPEN info;

fudge: CARDINAL = 1;

button ← BuildButton[info: info, name: buttonRope, proc: buttonProc, clientData: clientData,

fork: FALSE, gapAfter: FALSE];

arg ← ViewerOps.CreateViewer[flavor: $Text, info: [parent: container,

wx: entryLeft, wy: heightSoFar+fudge,

ww: openRightWidth-entryLeft-5,

wh: entryHeight*lines,

border: FALSE], paint: FALSE];

heightSoFar ← heightSoFar + entryHeight*lines;

entryLeft ← initLeft;

Containers.ChildXBound[container, arg];

};

----------------------------

GetDataNode: PUBLIC PROC [arg: ViewerClasses.Viewer] RETURNS [TextNode.RefTextNode] = {

tdd: TEditDocument.TEditDocumentData = NARROW[arg.data];

IF tdd=NIL THEN RETURN [NIL];

RETURN [TextNode.NarrowToTextNode[TextNode.FirstChild[tdd.text]]] };

GetDataLooks: PUBLIC PROC [arg: ViewerClasses.Viewer, name: Rope.ROPE]

RETURNS [looks: TextLooks.Looks] = {

node: TextNode.RefTextNode ← GetDataNode[arg];

size: TextNode.Offset = TextEdit.Size[node];

IF size=0 THEN RETURN [TextLooks.noLooks];

looks ← TextEdit.FetchLooks[node,0];

FOR i: TextNode.Offset IN [1..size) DO

IF TextEdit.FetchLooks[node,i]#looks THEN { OPEN MessageWindow;

Append[name,TRUE];

Append[" does not have uniform looks. Using looks from first char."];

Blink[]; EXIT };

ENDLOOP };

BadNumber: PUBLIC SIGNAL = CODE;

GetInt: PUBLIC PROC [arg: ViewerClasses.Viewer] RETURNS [num: INT] = {

rope: Rope.ROPE ← TextEdit.GetRope[GetDataNode[arg]];

h: IO.Handle ← IO.CreateInputStreamFromRope[rope];

num ← IO.GetInt[h ! IO.Error, IO.EndOfStream => GOTO BadNum];

EXITS BadNum => SIGNAL BadNumber

};

SetInt: PUBLIC PROC [arg: ViewerClasses.Viewer, num: INT] = {

h: IO.Handle ← IO.CreateOutputStreamToRope[];

IO.Put[h,IO.int[num]];

TEditOps.SetTextContents[arg, IO.GetOutputStreamRope[h]];

};

ConvertList: PUBLIC PROC [list: LIST OF REF ANY] RETURNS [Rope.ROPE] = { OPEN IO;

h: IO.Handle ← CreateOutputStreamToRope[];

doingChars: BOOLEAN ← FALSE;

nospace: BOOLEAN ← TRUE;

Space: PROC = {

IF doingChars THEN { -- end of string

PutChar[h, '"]; doingChars ← FALSE };

IF nospace THEN nospace ← FALSE ELSE PutChar[h,' ] };

AddChar: PROC [c: CHARACTER] = {

IF ~doingChars THEN { -- start of string

Space[]; PutChar[h, '"]; doingChars ← TRUE };

SELECT c FROM

'', '", '\\ => PutChar[h, '\\];

ENDCASE;

PutChar[h, c] };

{ ENABLE UNWIND => h.Close[];

FOR l: LIST OF REF ANY ← list, l.rest UNTIL l=NIL DO

WITH l.first SELECT FROM

x: ATOM => { Space[]; Put[h,atom[x]] };

x: REF INT => { Space[]; Put[h,int[x^]] };

x: REF CHARACTER => AddChar[x^];

x: ROPE => {

AddC: SAFE PROC [c: CHAR] RETURNS [BOOL] = {

AddChar[c]; RETURN [FALSE] };

[] ← Rope.Map[base: x, action: AddC] };

x: REF TEXT => {

FOR i: NAT IN [0..x.length) DO AddChar[x[i]]; ENDLOOP };

ENDCASE;

ENDLOOP;

IF doingChars THEN PutChar[h, '"];

RETURN [GetOutputStreamRope[h]];

}};

----------------------------

HRule: PUBLIC PROC [info: Layout, thickness: CARDINAL ← 1, gapAbove, gapBelow: BOOLEAN ← TRUE] = { OPEN info;

IF gapAbove THEN heightSoFar ← heightSoFar + entryVSpace*2;

[] ← Rules.Create[info: [parent: container, wx: 0, wy: heightSoFar, ww: openRightWidth,

wh: thickness], paint: FALSE];

heightSoFar ← heightSoFar + thickness;

IF gapBelow THEN heightSoFar ← heightSoFar + entryVSpace*2;

};