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Oberon Text | 1995-06-30 | 4.3 KB | 108 lines | [TEXT/.Ob4] |
- Syntax10.Scn.Fnt
- Syntax10i.Scn.Fnt
- StampElems
- Alloc
- 15 Feb 95
- Syntax10b.Scn.Fnt
- MODULE DialogCheckBoxes;
- (** Markus Knasm
- ller 25.May.94 -
- IMPORT DialogFrames, Dialogs, DialogTexts, Display, Display1, Files, In, Input, Oberon, Printer, TextFrames, Texts, Viewers;
- CONST ML = 0; MM = 1; MR = 2; W* = 20; H* = W; white = 0; black = 15;
- TYPE
- Item* = POINTER TO ItemDesc;
- ItemDesc* = RECORD(Dialogs.ObjectDesc)
- on-: BOOLEAN (** state of the checkbox *)
- END;
- PROCEDURE (b: Item) Draw* (x, y: INTEGER; f: Display.Frame);
- (** displays the object at (x, y) in frame f *)
- VAR mode, w, h, bx, by: INTEGER;
- BEGIN
- b.GetDim (bx, by, w, h); DEC (w); DEC (h);
- IF b.selected THEN mode := Display.invert ELSE mode := Display.replace END;
- Display1.Line (f, white, x, y, x + w, y, mode); Display1.Line (f, black, x, y, x, y + h, mode);
- Display1.Line (f, white, x + w, y, x + w, y + h, mode); Display1.Line (f, black, x, y + h, x + w, y + h, mode);
- IF b.on & (w > 8) & (h > 8) THEN
- Display1.Line (f, black, x + 4, y + 4, x + w - 4, y + h - 4, mode); Display1.Line (f, black, x + 4, y + h - 4, x + w - 4, y + 4, mode);
- Display1.Line (f, black, x + 5, y + 4, x + w - 4, y + h - 5, mode); Display1.Line (f, black, x + 4, y + 5, x + w - 5, y + h - 4, mode);
- Display1.Line (f, black, x + 5, y + h - 4, x + w - 4, y + 5, mode); Display1.Line (f, black, x + 4, y + h - 5, x + w - 5, y + 4, mode)
- END
- END Draw;
- PROCEDURE (b: Item) Print* (x, y: INTEGER);
- (** prints the object at printer coordinates (x, y) *)
- VAR h, w, ox, oy: INTEGER;
- BEGIN
- b.GetPDim (ox, oy, w, h);
- Printer.Line (x, y, x + w, y); Printer.Line (x, y, x , y + h);
- Printer.Line (x + w, y , x + w, y + h); Printer.Line (x, y + h, x + w, y + h);
- IF b.on THEN
- Printer.Line (x, y, x + w, y + h); Printer.Line (x, y + h, x + w, y)
- END;
- END Print;
- PROCEDURE (b: Item) ChangeValue* (value: BOOLEAN);
- (** changes the state of the item *)
- BEGIN
- IF b.on & ~ value THEN b.Hide END;
- b.on := value; b.Restore
- END ChangeValue;
- PROCEDURE (b: Item) Copy* (VAR dup: Dialogs.Object);
- (** allocates dup and makes a deep copy of o. Before calling this methode dup should be equal NIL *)
- VAR x: Item;
- BEGIN
- IF dup = NIL THEN NEW (x); dup := x ELSE x := dup(Item) END;
- b.Copy^ (dup); x.on := b.on
- END Copy;
- PROCEDURE (b: Item) Track (x, y: INTEGER; keys: SET; f: Display.Frame; p: Dialogs.Panel);
- VAR keysum: SET; t: Texts.Text;
- BEGIN
- IF (keys = {MM}) OR (keys = {ML}) OR (keys = {MR}) THEN
- keysum := keys;
- REPEAT
- Input.Mouse(keys, x, y); keysum := keysum + keys;
- Oberon.DrawCursor(Oberon.Mouse, Oberon.Arrow, x, y)
- UNTIL keys = {};
- IF (keysum = {MM}) OR (keysum = {ML}) OR (keysum = {MR}) THEN
- b.ChangeValue (~ b.on);
- DialogTexts.GetParText (b.par, b.panel, t);
- b.CallCmd (f, Viewers.This (x, y), t)
- END
- ELSE Oberon.DrawCursor(Oberon.Mouse, Oberon.Arrow, x, y)
- END
- END Track;
- PROCEDURE (b: Item) Handle* (f: Display.Frame; VAR m: Display.FrameMsg);
- (** handles messages which were sent to frame f *)
- BEGIN
- b.Handle^ (f, m);
- WITH f: DialogFrames.Frame DO
- WITH m: Oberon.InputMsg DO
- IF m.id = Oberon.track THEN b.Track (m.X, m.Y, m.keys, f, f.panel) END
- ELSE
- END
- ELSE
- END
- END Handle;
- PROCEDURE Insert*;
- (** Insert ([name] [x y w h]| ^ ) inserts a checkbox - item in the panel containing the caret position *)
- VAR x, y, x1, y1, w, h: INTEGER; b: Item; p: Dialogs.Panel; name: ARRAY 64 OF CHAR;
- BEGIN
- NEW (b);
- DialogFrames.GetCaretPosition (p, x, y);
- IF (p # NIL) THEN
- b.Init; b.on := FALSE;
- In.Open; In.Name (name);
- IF ~In.Done THEN COPY ("", name); In.Open END;
- b.SetName (name);
- In.Int (x1); In.Int (y1); In.Int (w); In.Int (h);
- IF ~In.Done THEN x1 := x; y1 := y; w := W; h := H
- ELSE
- IF w < 0 THEN w := W END;
- IF h < 0 THEN h := H END
- END;
- b.SetDim (x1, y1, w, h, FALSE); p.Insert (b, FALSE)
- ELSE
- Dialogs.res := Dialogs.noPanelSelected
- END;
- IF Dialogs.res # 0 THEN Dialogs.Error ("DialogCheckBoxes") END
- END Insert;
- END DialogCheckBoxes.
-