home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Celestin Apprentice 4
/
Apprentice-Release4.iso
/
Languages
/
PowerMacOberon 1.2
/
Dialogs
/
DialogRadioButtons.Mod
(
.txt
)
< prev
next >
Wrap
Oberon Text
|
1995-06-30
|
6KB
|
151 lines
Syntax10.Scn.Fnt
Syntax10i.Scn.Fnt
StampElems
Alloc
10 Feb 95
Syntax10b.Scn.Fnt
MODULE DialogRadioButtons;
(** Markus Knasm
ller 30 Jun 94 -
IMPORT DialogFrames, DialogGroupBoxes, Dialogs, DialogTexts, Display, Display1, In, Input, Oberon, Printer, TextFrames, Texts, Viewers;
CONST ML = 0; MM = 1; MR = 2; W* = 20; H* = W; grey1 = 12; grey2 = 13; grey3 = 14; black = 15; white = 0; p = 5;
TYPE
Item* = POINTER TO ItemDesc;
ItemDesc* = RECORD(Dialogs.ObjectDesc)
on-: BOOLEAN; (** state of the radiobutton *)
END;
VAR w: Texts.Writer;
PROCEDURE Min (x, y: INTEGER): INTEGER;
BEGIN IF x < y THEN RETURN x ELSE RETURN y END
END Min;
PROCEDURE (r: Item) Draw* (x, y: INTEGER; f: Display.Frame);
(** displays the object at (x, y) in frame f *)
VAR mode, w, h, rx, ry, i, y1, w2: INTEGER;
BEGIN
r.GetDim (rx, ry, w, h); DEC (w); DEC (h); w := Min (w, h);
IF r.selected THEN mode := Display.invert ELSE mode := Display.replace END;
w2 := w DIV 2; w := w2 * 2; (* VIC Jan 11 1995 *)
IF r.on THEN
Display1.Line (f, black, x, y + w2, x + w2, y + w, mode);
Display1.Line (f, black, x + w, y + w2, x + w2, y + w, mode);
Display1.Line (f, white, x, y + w2, x + w2, y, mode);
Display1.Line (f, white, x + w, y + w2, x + w2, y, mode);
FOR i := - ((w * p) DIV 20) TO 0 DO
y1 := y + w2 + (w * p DIV 20) + i;
Display1.Line (f, black, x + w2 + i, y1, x + w2 - i, y1, mode);
END;
FOR i := 0 TO ((w * p) DIV 20) DO
y1 := y + w2 - i;
Display1.Line (f, black, x + w2 - (w * p DIV 20) + i, y1, x + w2 + (w * p DIV 20) - i, y1, mode);
END;
ELSE
Display1.Line (f, white, x, y + w2, x + w2, y + w, mode);
Display1.Line (f, white, x + w, y + w2, x + w2, y + w, mode);
Display1.Line (f, black, x, y + w2, x + w2, y, mode);
Display1.Line (f, black, x + w, y + w2, x + w2, y, mode)
END
END Draw;
PROCEDURE (r: Item) Print* (x, y: INTEGER);
(** prints the object at printer coordinates (x, y) *)
VAR w, h, rx, ry, i, y1: INTEGER;
BEGIN
r.GetPDim (rx, ry, w, h); DEC (w); DEC (h); w := Min (w, h);
Printer.Line (x + w, y + (w DIV 2), x + (w DIV 2), y + w);
Printer.Line (x + w, y + (w DIV 2), x + (w DIV 2), y);
Printer.Line (x, y + (w DIV 2), x + (w DIV 2), y + w);
Printer.Line (x, y + (w DIV 2), x + (w DIV 2), y);
IF r.on THEN
FOR i := - ((w * p) DIV 20) TO 0 DO
y1 := y + (w DIV 2) + (w * p DIV 20) + i;
Printer.Line (x + (w DIV 2) + i, y1, x + (w DIV 2) - i, y1);
END;
FOR i := 0 TO ((w * p) DIV 20) DO
y1 := y + (w DIV 2) - i;
Printer.Line (x + (w DIV 2) - (w * p DIV 20) + i, y1, x + (w DIV 2) + (w * p DIV 20) - i, y1);
END;
END
END Print;
PROCEDURE (r: 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;
r.Copy^ (dup); x.on := r.on;
END Copy;
PROCEDURE (r: Item) ChangeValue* (value: BOOLEAN);
(** changes the state of the item *)
VAR g, o: Dialogs.Object; obArray: ARRAY 50 OF Dialogs.Object; nofelems, i: INTEGER;
BEGIN
IF r.on = value THEN RETURN END;
r.Hide; r.on := value; r.Restore;
IF value = FALSE THEN RETURN END;
g := r.OverlappingObject (); IF g = NIL THEN RETURN END;
WITH g: DialogGroupBoxes.Item DO
g.GetObjects (obArray, nofelems);
FOR i := 0 TO nofelems - 1 DO
o := obArray[i];
IF o # r THEN
WITH o: Item DO
IF o.on THEN o.Hide; o.on := FALSE; o.Restore END
ELSE
END
END
END
ELSE
END
END ChangeValue;
PROCEDURE (r: Item) Track (x, y: INTEGER; keys: SET; f: Display.Frame; p: Dialogs.Panel);
VAR keysum: SET; name: ARRAY 64 OF CHAR; dummy: ARRAY 6 OF CHAR; t: Texts.Text;
BEGIN
IF (keys = {ML}) OR (keys = {MM}) 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 = {ML}) OR (keysum = {MM}) OR (keysum = {MR}) & (~ r.on) THEN (* one button of a set is on at any time *)
r.ChangeValue (TRUE);
IF r.cmd[0] # 0X THEN
DialogTexts.GetParText (r.par, r.panel, t);
r.CallCmd (f, Viewers.This (x, y), t)
END
END
ELSE Oberon.DrawCursor(Oberon.Mouse, Oberon.Arrow, x, y)
END
END Track;
PROCEDURE (r: Item) Handle* (f: Display.Frame; VAR m: Display.FrameMsg);
(** handles messages which were sent to frame f *)
BEGIN
r.Handle^ (f, m);
WITH f: DialogFrames.Frame DO
WITH m: Oberon.InputMsg DO
IF m.id = Oberon.track THEN r.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 radiobutton - item in the panel containing the caret position *)
VAR x, y, x1, y1, w, h: INTEGER; r: Item; p: Dialogs.Panel; name: ARRAY 64 OF CHAR;
BEGIN
NEW (r);
DialogFrames.GetCaretPosition (p, x, y);
IF (p # NIL) THEN
r.Init; r.on := FALSE;
In.Open; In.Name (name);
IF ~In.Done THEN COPY ("", name); In.Open END;
r.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;
r.SetDim (x1, y1, w, h, FALSE); p.Insert (r, FALSE);
ELSE
Dialogs.res := Dialogs.noPanelSelected
END;
IF Dialogs.res # 0 THEN Dialogs.Error ("DialogRadioButtons") END;
END Insert;
BEGIN Texts.OpenWriter (w);
END DialogRadioButtons.