forked from KolibriOS/kolibrios
477 lines
11 KiB
Plaintext
477 lines
11 KiB
Plaintext
(*
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Copyright 2021 Anton Krotov
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This file is part of CEdit.
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CEdit is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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CEdit is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with CEdit. If not, see <http://www.gnu.org/licenses/>.
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*)
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MODULE Menu;
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IMPORT
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SYSTEM, G := Graph, List, K := KolibriOS;
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CONST
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fontHeight = 22;
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fontWidth = 8;
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RIGHT = 16;
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LEFT = 16;
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TOP = 1;
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maxLEVEL = 1;
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backColor = 0F0F0F0H;
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foreColor = 0;
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selBackColor = 091C9F7H;
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selForeColor = 0;
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disBackColor = backColor;
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disForeColor = 808080H;
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disSelBackColor = 0E4E4E4H;
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disSelForeColor = disForeColor;
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TYPE
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tMenu* = POINTER TO RECORD
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tid*: INTEGER;
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active*: BOOLEAN;
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parent*, child: tMenu;
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winX, winY, width*, height*: INTEGER;
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selItem, cliItem: INTEGER;
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font: G.tFont;
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canvas: G.tCanvas;
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items: List.tList;
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click: PROCEDURE (menu: tMenu; id: INTEGER);
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key: PROCEDURE (menu: tMenu; key: INTEGER): BOOLEAN
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END;
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tItem* = POINTER TO RECORD (List.tItem)
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id*, check: INTEGER;
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text: ARRAY 32 OF WCHAR;
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enabled, delim: BOOLEAN;
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child: tMenu
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END;
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tClick = PROCEDURE (menu: tMenu; id: INTEGER);
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tKey = PROCEDURE (menu: tMenu; key: INTEGER): BOOLEAN;
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tProc = PROCEDURE;
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VAR
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stack: ARRAY maxLEVEL + 1, 250000 OF INTEGER;
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TIDs: ARRAY maxLEVEL + 1 OF INTEGER;
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resetTimer: tProc;
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_open: PROCEDURE (m: tMenu; x, y: INTEGER);
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redraw*: BOOLEAN;
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PROCEDURE isSender* (tid: INTEGER): BOOLEAN;
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VAR
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i: INTEGER;
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BEGIN
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i := 0;
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WHILE (i <= maxLEVEL) & (TIDs[i] # tid) DO
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INC(i)
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END
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RETURN i <= maxLEVEL
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END isSender;
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PROCEDURE exit (m: tMenu);
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BEGIN
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m.tid := 0;
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m.active := FALSE;
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resetTimer;
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K.Exit
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END exit;
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PROCEDURE repaint (m: tMenu);
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VAR
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y, i, X, Y1, Y2: INTEGER;
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item: tItem;
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BkColor, TextColor: INTEGER;
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canvas: G.tCanvas;
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BEGIN
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canvas := m.canvas;
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G.SetColor(canvas, backColor);
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G.clear(canvas);
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G.SetColor(canvas, ORD((-BITS(backColor))*{0..23}) );
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G.Rect(canvas, 0, 0, m.width, m.height);
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y := TOP;
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i := 0;
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item := m.items.first(tItem);
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WHILE item # NIL DO
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IF item.enabled THEN
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IF i # m.selItem THEN
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BkColor := backColor;
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TextColor := foreColor
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ELSE
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BkColor := selBackColor;
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TextColor := selForeColor
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END
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ELSE
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IF i # m.selItem THEN
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BkColor := disBackColor;
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TextColor := disForeColor
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ELSE
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BkColor := disSelBackColor;
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TextColor := disSelForeColor
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END
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END;
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G.SetColor(canvas, BkColor);
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G.FillRect(canvas, 1, y, m.width - 1, y + fontHeight - 4);
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G.SetTextColor(canvas, TextColor);
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G.SetBkColor(canvas, BkColor);
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G.TextOut2(canvas, LEFT, y + (fontHeight - 16) DIV 2 - 2, item.text, LENGTH(item.text));
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G.SetColor(canvas, TextColor);
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IF item.check = 1 THEN
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G.DLine(canvas, 4, 7, y + (fontHeight - 16) DIV 2 + 5, -1);
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G.DLine(canvas, 4, 7, y + (fontHeight - 16) DIV 2 + 6, -1);
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G.DLine(canvas, 7, 12, y + (fontHeight - 16) DIV 2 + 8, 1);
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G.DLine(canvas, 7, 12, y + (fontHeight - 16) DIV 2 + 9, 1);
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ELSIF item.check = 2 THEN
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G.FillRect(canvas, 6, y + fontHeight DIV 2 - 4, 10, y + fontHeight DIV 2)
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END;
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IF item.child # NIL THEN
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X := m.width - 9;
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Y1 := y + (fontHeight - 16) DIV 2 + 2;
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Y2 := Y1 + 8;
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G.Triangle(canvas, X, Y1, X, Y2, G.triRight)
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END;
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INC(y, fontHeight);
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IF item.delim THEN
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G.SetColor(canvas, ORD((-BITS(backColor))*{0..23}));
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G.HLine(canvas, y - 2, 1, m.width - 1)
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END;
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INC(i);
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item := item.next(tItem)
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END;
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G.DrawCanvas(canvas, 0, 0)
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END repaint;
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PROCEDURE draw_window (m: tMenu);
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BEGIN
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K.BeginDraw;
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K.CreateWindow(m.winX, m.winY, m.width, m.height, 0, 61H, 0, 1, "");
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repaint(m);
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K.EndDraw
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END draw_window;
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PROCEDURE mouse (m: tMenu; VAR x, y: INTEGER);
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VAR
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mouseX, mouseY: INTEGER;
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BEGIN
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K.MousePos(mouseX, mouseY);
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x := mouseX - m.winX;
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y := mouseY - m.winY;
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END mouse;
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PROCEDURE close* (m: tMenu);
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BEGIN
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IF (m # NIL) & (m.tid # 0) THEN
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IF m.child # NIL THEN
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close(m.child);
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m.child := NIL
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END;
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K.ExitID(m.tid);
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m.tid := 0;
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m.active := FALSE
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END
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END close;
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PROCEDURE click (m: tMenu; i: INTEGER);
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VAR
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item: List.tItem;
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p: tMenu;
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BEGIN
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item := List.getItem(m.items, i);
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IF (item # NIL) & item(tItem).enabled & (item(tItem).child = NIL) THEN
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m.click(m, item(tItem).id);
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p := m.parent;
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WHILE p # NIL DO
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p.child := NIL;
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close(p);
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p := p.parent
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END;
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redraw := TRUE;
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exit(m)
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END
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END click;
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PROCEDURE opened* (m: tMenu): BOOLEAN;
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RETURN m.tid # 0
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END opened;
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PROCEDURE isActive (m: tMenu): BOOLEAN;
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RETURN (m # NIL) & ((m.tid # 0) & m.active OR isActive(m.child))
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END isActive;
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PROCEDURE closeChild (m: tMenu);
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BEGIN
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IF m.child # NIL THEN
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redraw := FALSE;
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close(m.child);
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m.child := NIL
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END
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END closeChild;
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PROCEDURE submenu (m: tMenu);
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VAR
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item: List.tItem;
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BEGIN
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item := List.getItem(m.items, m.selItem);
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IF (item # NIL) & item(tItem).enabled & (item(tItem).child # NIL) THEN
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IF ~opened(item(tItem).child) THEN
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closeChild(m);
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_open(item(tItem).child, m.winX + m.width - 2, m.winY + m.selItem*fontHeight);
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m.child := item(tItem).child
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END
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ELSE
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closeChild(m)
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END
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END submenu;
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PROCEDURE [stdcall] window (m: tMenu);
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VAR
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x, y: INTEGER;
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key: INTEGER;
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msState: SET;
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BEGIN
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m.selItem := -1;
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m.cliItem := -1;
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K.SetEventsMask({0, 1, 5});
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WHILE TRUE DO
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CASE K.WaitForEvent() OF
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|1:
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draw_window(m)
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|2:
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key := K.GetKey();
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IF key DIV 65536 = 72 THEN
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DEC(m.selItem);
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IF m.selItem < 0 THEN
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m.selItem := 0
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END
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ELSIF key DIV 65536 = 80 THEN
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INC(m.selItem);
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IF m.selItem >= m.items.count THEN
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m.selItem := m.items.count - 1
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END
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ELSIF key DIV 65536 = 28 THEN
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IF m.selItem >= 0 THEN
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click(m, m.selItem)
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END;
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m.cliItem := -1
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ELSIF key DIV 65536 = 77 THEN
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submenu(m)
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ELSIF key DIV 65536 = 75 THEN
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IF m.parent # NIL THEN
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exit(m)
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END
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ELSE
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IF m.key(m, key) THEN
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exit(m)
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END
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END;
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repaint(m)
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|6:
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msState := K.MouseState();
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mouse(m, x, y);
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IF (0 <= x) & (x < m.width) & (0 <= y) & (y < m.height) THEN
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m.active := TRUE;
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m.selItem := (y - TOP) DIV fontHeight;
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IF 8 IN msState THEN
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m.cliItem := (y - TOP) DIV fontHeight
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END;
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IF 16 IN msState THEN
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IF m.cliItem = m.selItem THEN
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click(m, m.cliItem)
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END;
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m.cliItem := -1
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END
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ELSE
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m.active := FALSE;
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m.cliItem := -1;
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IF ({8, 9, 10, 16} * msState # {}) & ~isActive(m.child) THEN
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exit(m)
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END
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END;
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repaint(m);
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submenu(m)
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END
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END
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END window;
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PROCEDURE level (m: tMenu): INTEGER;
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VAR
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res: INTEGER;
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BEGIN
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res := 0;
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WHILE m.parent # NIL DO
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INC(res);
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m := m.parent
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END
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RETURN res
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END level;
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PROCEDURE open* (m: tMenu; x, y: INTEGER);
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VAR
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L: INTEGER;
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BEGIN
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IF m.tid = 0 THEN
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m.winX := x;
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m.winY := y;
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L := level(m);
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SYSTEM.PUT(SYSTEM.ADR(stack[L][LEN(stack[0]) - 1]), m);
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m.tid := K.CreateThread(SYSTEM.ADR(window), stack[L]);
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TIDs[L] := m.tid
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END
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END open;
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PROCEDURE AddMenuItem* (items: List.tList; id: INTEGER; s: ARRAY OF WCHAR);
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VAR
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item: tItem;
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BEGIN
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NEW(item);
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item.id := id;
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item.text := s;
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item.enabled := TRUE;
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item.delim := FALSE;
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item.child := NIL;
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List.append(items, item);
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END AddMenuItem;
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PROCEDURE delimiter* (items: List.tList);
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BEGIN
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items.last(tItem).delim := TRUE
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END delimiter;
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PROCEDURE child* (items: List.tList; menu: tMenu);
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BEGIN
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items.last(tItem).child := menu
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END child;
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PROCEDURE getItem (m: tMenu; id: INTEGER): tItem;
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VAR
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item: tItem;
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BEGIN
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item := m.items.first(tItem);
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WHILE (item # NIL) & (item.id # id) DO
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item := item.next(tItem)
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END
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RETURN item
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END getItem;
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PROCEDURE setEnabled* (m: tMenu; id: INTEGER; value: BOOLEAN);
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VAR
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item: tItem;
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BEGIN
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item := getItem(m, id);
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IF item # NIL THEN
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item.enabled := value
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END
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END setEnabled;
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PROCEDURE setCheck* (m: tMenu; id: INTEGER; value: INTEGER);
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VAR
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item: tItem;
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BEGIN
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item := getItem(m, id);
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IF item # NIL THEN
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item.check := value
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END
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END setCheck;
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PROCEDURE isEnabled* (m: tMenu; id: INTEGER): BOOLEAN;
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VAR
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item: tItem;
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BEGIN
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item := getItem(m, id)
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RETURN (item # NIL) & item.enabled
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END isEnabled;
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PROCEDURE create* (items: List.tList; click: tClick; key: tKey): tMenu;
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VAR
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m: tMenu;
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maxLength: INTEGER;
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item: tItem;
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BEGIN
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NEW(m);
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m.tid := 0;
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m.active := FALSE;
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m.parent := NIL;
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m.child := NIL;
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m.items := items;
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m.click := click;
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m.key := key;
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maxLength := 0;
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item := items.first(tItem);
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WHILE item # NIL DO
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maxLength := MAX(maxLength, LENGTH(item.text));
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item := item.next(tItem)
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END;
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m.width := maxLength*fontWidth + LEFT + RIGHT;
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m.height := items.count*fontHeight - 2;
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m.font := G.CreateFont(1, "", {});
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m.canvas := G.CreateCanvas(m.width + 1, m.height + 1);
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G.SetFont(m.canvas, m.font);
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RETURN m
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END create;
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PROCEDURE Redraw*;
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BEGIN
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redraw := TRUE
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END Redraw;
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PROCEDURE init* (_resetTimer: tProc);
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VAR
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i: INTEGER;
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BEGIN
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Redraw;
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resetTimer := _resetTimer;
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_open := open;
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FOR i := 0 TO maxLEVEL DO
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TIDs[i] := 0
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END
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END init;
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END Menu. |