forked from KolibriOS/kolibrios
278 lines
7.3 KiB
Plaintext
278 lines
7.3 KiB
Plaintext
(*
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Copyright 2021, 2022 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 Tabs;
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IMPORT List, K := KolibriOS, RW, U := Utils;
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CONST
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btnID* = 100;
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btnClose* = btnID + 100;
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btnLeft* = btnID - 1;
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btnRight* = btnID - 2;
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tabHeight* = 22;
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curTabHeight = 26;
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scrWidth = 15;
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btnCloseColor* = 0EF999FH;
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TYPE
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tItem = POINTER TO RECORD (List.tItem)
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val: RW.tFileName;
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modified: BOOLEAN
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END;
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tTabs* = POINTER TO RECORD
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strings: List.tList;
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first, current: INTEGER;
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width, height: INTEGER;
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x, y, freeX: INTEGER
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END;
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PROCEDURE DblClicked* (t: tTabs; x, y: INTEGER): BOOLEAN;
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RETURN (x > t.freeX) & U.between(t.y, y, t.y + t.height - 1)
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END DblClicked;
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PROCEDURE drawTab (t: tTabs; id, x, y, width, height: INTEGER; s: ARRAY OF CHAR; modified: BOOLEAN);
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CONST
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btnCloseSize = 14;
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VAR
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x2, y2, color, closeColor, closeForeColor, textColor: INTEGER;
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left, top: INTEGER;
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BEGIN
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IF id = t.current THEN
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INC(height, curTabHeight - tabHeight);
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DEC(y, curTabHeight - tabHeight)
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END;
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color := K.colors.work;
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textColor := K.colors.work_text;
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DEC(x); INC(width);
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x2 := x + width - 1;
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y2 := y + height - 1;
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K.DrawRect(x, y, width, height, color);
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K.DrawLine(x, y, x2, y, K.colors.line);
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K.DrawLine(x2, y, x2, y2, K.colors.line);
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top := y + 3;
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IF id # t.current THEN
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K.DrawLine(x2 - 1, y2, x, y2, K.colors.line);
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closeColor := K.colors.button;
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closeForeColor := K.colors.button_text
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ELSE
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INC(top, (curTabHeight - tabHeight) DIV 2);
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closeColor := btnCloseColor;
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closeForeColor := 0FFFFFFH
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END;
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K.DrawLine(x, y2, x, y, K.colors.line);
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K.DrawText866bk(x + K.fontWidth + K.fontWidth DIV 2, y + (height - K.fontHeight) DIV 2, textColor, color, s);
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IF modified THEN
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K.DrawText866bk(x + K.fontWidth DIV 2, y + (height - K.fontHeight) DIV 2, textColor, color, "*")
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END;
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K.CreateButton(id + ORD({30}) + btnID, x + 1, y - 1, width - 1, height - 1, 0, "");
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left := x + width - btnCloseSize - 5;
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K.CreateButton(id + btnClose, left, top, btnCloseSize, btnCloseSize, closeColor, "");
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K.DrawLine(left + 5, top + 4, left + btnCloseSize - 4, top + btnCloseSize - 5, closeForeColor);
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K.DrawLine(left + 4, top + 4, left + btnCloseSize - 4, top + btnCloseSize - 4, closeForeColor);
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K.DrawLine(left + 4, top + 5, left + btnCloseSize - 5, top + btnCloseSize - 4, closeForeColor);
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K.DrawLine(left + 4, top + btnCloseSize - 4, left + btnCloseSize - 4, top + 4, closeForeColor);
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K.DrawLine(left + 4, top + btnCloseSize - 5, left + btnCloseSize - 5, top + 4, closeForeColor);
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K.DrawLine(left + 5, top + btnCloseSize - 4, left + btnCloseSize - 4, top + 5, closeForeColor);
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END drawTab;
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PROCEDURE tabWidth (tab: tItem): INTEGER;
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RETURN (LENGTH(tab.val) + 5)*K.fontWidth
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END tabWidth;
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PROCEDURE Width (t: tTabs; pos, n: INTEGER): INTEGER;
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VAR
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res, i: INTEGER;
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item: List.tItem;
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BEGIN
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res := 0;
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i := pos;
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item := List.getItem(t.strings, i);
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WHILE (item # NIL) & (i <= n) DO
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INC(res, tabWidth(item(tItem)));
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item := item.next;
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INC(i)
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END
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RETURN res
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END Width;
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PROCEDURE draw* (t: tTabs);
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VAR
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x, y, xmax, n, width, i: INTEGER;
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item: List.tItem;
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scroll: BOOLEAN;
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BEGIN
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y := t.y;
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x := t.x;
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K.DrawRect(x, y - (curTabHeight - tabHeight), t.width + (2*scrWidth + 2), t.height + (curTabHeight - tabHeight) - 1, K.colors.work);
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IF Width(t, 0, t.strings.count - 1) > t.width THEN
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INC(x, 2*scrWidth);
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K.DeleteButton(btnLeft);
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K.DeleteButton(btnRight);
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K.CreateButton(btnLeft, t.x, y, scrWidth, t.height - 1, K.colors.button, "<");
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K.CreateButton(btnRight, t.x + scrWidth, y, scrWidth, t.height - 1, K.colors.button, ">");
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scroll := TRUE
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ELSE
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t.first := 0;
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scroll := FALSE
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END;
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xmax := x + t.width - 1;
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n := t.strings.count - 1;
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FOR i := 0 TO n DO
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K.DeleteButton(i + btnID)
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END;
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WHILE (n >= 0) & (Width(t, n, t.strings.count - 1) <= t.width) DO
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DEC(n)
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END;
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IF n < 0 THEN
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n := 0
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ELSE
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INC(n)
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END;
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IF n < t.first THEN
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t.first := n
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END;
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K.DrawRect(x, y, t.width, t.height - 1, K.colors.work);
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K.DrawLine(x, y + tabHeight - 1, x + t.width - 1 + 2*scrWidth*(1 - ORD(scroll)), y + tabHeight - 1, K.colors.line);
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item := List.getItem(t.strings, t.first);
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n := t.first;
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WHILE (item # NIL) & (x <= xmax) DO
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width := tabWidth(item(tItem));
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IF x + width - 1 <= xmax THEN
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drawTab(t, n, x + 1, y, width, t.height, item(tItem).val, item(tItem).modified);
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INC(n);
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INC(x, width);
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item := item.next
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ELSE
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item := NIL
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END
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END;
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t.freeX := x
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END draw;
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PROCEDURE add* (t: tTabs; s: ARRAY OF CHAR);
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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.val := s;
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item.modified := FALSE;
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List.append(t.strings, item);
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END add;
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PROCEDURE modify* (t: tTabs; n: INTEGER; val: BOOLEAN);
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VAR
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item: List.tItem;
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BEGIN
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item := List.getItem(t.strings, n);
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IF item(tItem).modified # val THEN
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item(tItem).modified := val;
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draw(t)
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END
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END modify;
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PROCEDURE rename* (t: tTabs; n: INTEGER; s: ARRAY OF CHAR);
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VAR
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item: List.tItem;
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BEGIN
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item := List.getItem(t.strings, n);
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item(tItem).val := s
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END rename;
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PROCEDURE delete* (t: tTabs; n: INTEGER);
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VAR
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item: List.tItem;
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BEGIN
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item := List.getItem(t.strings, n);
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List.delete(t.strings, item);
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DISPOSE(item)
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END delete;
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PROCEDURE scroll* (t: tTabs; btn: INTEGER);
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VAR
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pos: INTEGER;
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BEGIN
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pos := t.first + ORD(btn = btnRight) - ORD(btn = btnLeft);
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IF pos < 0 THEN
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pos := 0
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ELSIF pos >= t.strings.count THEN
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pos := t.strings.count - 1
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END;
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t.first := pos
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END scroll;
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PROCEDURE switch* (t: tTabs; n: INTEGER);
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BEGIN
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IF (0 <= n) & (n < t.strings.count) THEN
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t.current := n;
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IF n < t.first THEN
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t.first := 0
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END;
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WHILE Width(t, t.first, n) > t.width DO
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INC(t.first)
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END
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END
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END switch;
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PROCEDURE setArea* (t: tTabs; x, y, width, height: INTEGER);
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BEGIN
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t.x := x;
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t.y := y;
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t.width := width - 2*scrWidth;
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t.height := height
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END setArea;
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PROCEDURE create* (): tTabs;
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VAR
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res: tTabs;
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BEGIN
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NEW(res);
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res.strings := List.create(NIL);
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res.current := 0;
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res.first := 0
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RETURN res
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END create;
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END Tabs. |