(*
    Copyright 2021, 2022 Anton Krotov

    This file is part of CEdit.

    CEdit is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    CEdit is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with CEdit. If not, see <http://www.gnu.org/licenses/>.
*)

MODULE CEdit;

IMPORT
    OpenDlg, K := KolibriOS, Args,
    U := Utils, Lines, Menu, List,
    G := Graph, T := Text, E := Encodings,
    CB := Clipboard, Languages,
    ChangeLog, Scroll, CheckBox,
    RW, Ini, EB := EditBox, Tabs, Toolbar, SB := StatusBar;

CONST
    HEADER = "CEdit (25-jan-2022)";

    ShellFilter = "";
    EditFilter = "SH|INC|TXT|ASM|OB07|C|CPP|H|PAS|PP|LUA|INI|JSON";

    fontWidth = K.fontWidth;
    fontHeight = K.fontHeight;

    btnClose = 1;

    btnNew = 20;
    btnOpen = 21;
    btnSave = 22;
    btnSearch = 23;
    btnUndo = 24;
    btnRedo = 25;
    btnUpper = 26;
    btnLower = 27;
    btnBuild = 28;
    btnRun = 29;

    btnYes = 40;
    btnNo = 41;
    btnFindNext = 42;
    btnReplace = 43;
    btnReplaceAll = 44;
    btnGoto = 45;
    btnCloseSearch = 46;
    btnHideSearch = 47;

    mainMenuBtn = 60;

    btnHeight = 25;
    btnWidth = 75;

    toolbarTop = Menu.MainMenuHeight + 3;

    TOP = toolbarTop + Toolbar.BtnSize + 10 + Tabs.tabHeight;

    minWinWidth = 635; minWinHeight = 550;

    SEARCH_PADDING = 10;
    LEFT_PADDING = 1;
    RIGHT_PADDING = 1;

    EditBox_Width = 180;
    EDITBOX_MAXCHARS = 500;

    menuFileX = Menu.MainMenuX;
    menuEditX = menuFileX + 4*fontWidth + 9;
    menuSearchX = menuEditX + 4*fontWidth + 9;
    menuEncodingX = menuSearchX + 6*fontWidth + 9;
    menuViewX = menuEncodingX + 8*fontWidth + 9;
    menuLanguageX = menuViewX + 4*fontWidth + 9;
    menuProgramX = menuLanguageX + 8*fontWidth + 9;
    menuToolsX = menuProgramX + 7*fontWidth + 9;

    menuCut = 1;
    menuCopy = 2;
    menuPaste = 3;
    menuDelete = 4;
    menuSelectAll = 5;

    menuUndo = 6;
    menuRedo = 7;

    menuCurLine = 100;
    menuIndent = 110;
    menuCase = 120;

    menuNew = 10;
    menuOpen = 11;
    menuSave = 12;
    menuSaveAs = 13;
    menuSaveAll = 14;
    menuFolder = 15;
    menuClose = 16;
    menuExit = 17;

    menuNumbers = 20;
    menuFontSmall = 21;
    menuFontMedium = 22;
    menuFontBig = 23;
    menuColors = 1000;
    menuMaxColors = menuColors + Ini.MAX_SECTIONS - 1;

    menuText = 30;
    menuC = 31;
    menuFasm = 32;
    menuIni = 33;
    menuJSON = 34;
    menuLua = 35;
    menuOberon = 36;
    menuPascal = 37;

    menuBuild = 50;
    menuBuildScript = 51;
    menuRun = 52;
    menuRunScript = 53;
    menuDebug = 54;
    menuDebugScript = 55;

    menuUTF8BOM = 60;
    menuUTF8 = 61;
    menuCP866 = 62;
    menuWin1251 = 63;
    menuEOL = 140;

    menuPipet = 70;
    menuMagnify = 71;
    menuBoard = 72;
    menuSysFunc = 73;

    menuFind = 80;
    menuFindNext = 81;
    menuFindPrev = 82;
    menuGoto = 83;
    menuBookmark = 130;

    menuMoveUp = 101;
    menuMoveDown = 102;
    menuDuplicate = 103;
    menuRemove = 104;

    menuIncInd = 111;
    menuDecInd = 112;

    menuUpper = 121;
    menuLower = 122;

    menuToggleBookmark = 131;
    menuNextBookmark = 132;
    menuPrevBookmark = 133;

    menuLF = 141;
    menuCRLF = 142;
    menuCR = 143;

    maxTexts = 32;

	SHIFT = Menu.SHIFT;
	CTRL  = Menu.CTRL;


VAR
	header: RW.tFileName;
    canvas: G.tCanvas;
    font: G.tFont;

    tabs: Tabs.tTabs;
    text: T.tText;
    texts: ARRAY maxTexts OF T.tText;
    textsCount, curText: INTEGER;

    winWidth, winHeight: INTEGER;
    SkinHeight, scrollWidth: INTEGER;
    AppPath, runScript, buildScript, debugScript, CurFolder: RW.tFileName;
    OD: OpenDlg.Dialog;
    confirm, notFound, menuFindClicked, search, searchOpened: BOOLEAN;

    switch, closing: BOOLEAN;
    leftButton: BOOLEAN;
    LEFT, RIGHT, BOTTOM: INTEGER;

    FindEdit, ReplaceEdit, GotoEdit: EB.tEditBox;
    hScroll, vScroll: Scroll.tScroll;
    CS, WH, BKW: CheckBox.tCheckBox;

    new_searchText, searchText, replaceText, gotoText: T.tString;
    cs, whole: BOOLEAN;

    replaced: INTEGER;

    context, menuFile, menuEdit, menuSearch, menuEncoding,
    menuView, menuLanguage, menuProgram, menuTools,
    subCurLine, subIndent, subCase, subBookmark, subEOL: Menu.tMenu;

    mainMenu: Menu.tMain;

    menuActive: BOOLEAN;

    toolbar: Toolbar.tToolbar;

    CursorTime, CurrentTime: INTEGER;
    timerEnabled: BOOLEAN;


PROCEDURE EditBox_Focus (edit: EB.tEditBox): BOOLEAN;
	RETURN 1 IN edit.flags
END EditBox_Focus;


PROCEDURE resetTimer;
BEGIN
	IF EditBox_Focus(FindEdit) OR EditBox_Focus(ReplaceEdit) OR EditBox_Focus(GotoEdit) THEN
		T.hideCursor;
		timerEnabled := FALSE
	ELSE
		T.showCursor;
		timerEnabled := TRUE
	END;
	CursorTime := CurrentTime
END resetTimer;


PROCEDURE EditBox_SetFocus (VAR edit: EB.tEditBox; value: BOOLEAN);
BEGIN
    IF value THEN
    	INCL(edit.flags, 1)
    ELSE
    	EXCL(edit.flags, 1)
    END;
    IF search & searchOpened THEN
        EB.draw(edit)
    END
END EditBox_SetFocus;


PROCEDURE SetFocus (VAR edit: EB.tEditBox; value: BOOLEAN);
BEGIN
    EditBox_SetFocus(FindEdit, FALSE);
    EditBox_SetFocus(ReplaceEdit, FALSE);
    EditBox_SetFocus(GotoEdit, FALSE);
    EditBox_SetFocus(edit, value);
  	resetTimer
END SetFocus;


PROCEDURE Rect (left, top, right, bottom, color: INTEGER);
BEGIN
    K.DrawLine(left, top, right, top, color);
    K.DrawLine(left, bottom, right, bottom, color);
    K.DrawLine(left, top, left, bottom, color);
    K.DrawLine(right, top, right, bottom, color);
END Rect;


PROCEDURE Message (s: ARRAY OF WCHAR);
CONST
    minWidth = 30;
    height = 40;
VAR
    top, left, right, bottom, x, y, width: INTEGER;
BEGIN
	timerEnabled := FALSE;
	CursorTime := CurrentTime;
    width := minWidth + LENGTH(s)*fontWidth;
    left := (canvas.width - width) DIV 2 + LEFT;
    top := (canvas.height - height) DIV 2 + TOP;
    bottom := top + height - 1;
    right := left + width - 1;
    x := minWidth DIV 2 + left;
    y := (height - fontHeight) DIV 2 + top;
    K.DrawRect(left, top, width, height, K.colors.work);
    Rect(left, top, right, bottom, K.colors.line);
    K.DrawText(x, y, K.colors.work_text, s);
END Message;


PROCEDURE NotFound;
BEGIN
    IF notFound THEN
        Message("not found");
        IF menuFindClicked THEN
        	menuFindClicked := FALSE
        ELSE
        	notFound := FALSE
        END;
        SetFocus(FindEdit, TRUE)
    END
END NotFound;


PROCEDURE Replaced;
VAR
    s, s1: ARRAY 32 OF WCHAR;
BEGIN
    IF replaced # 0 THEN
        s := "replaced: ";
        U.int2str(replaced, s1);
        U.append(s, s1);
        Message(s);
        replaced := 0;
        SetFocus(FindEdit, TRUE)
    END
END Replaced;


PROCEDURE getIdx (text: T.tText): INTEGER;
VAR
    i: INTEGER;
BEGIN
    i := 0;
    WHILE texts[i] # text DO
        INC(i)
    END
    RETURN i
END getIdx;


PROCEDURE SetCaption (fileName: RW.tFileName);
VAR
	newHeader: RW.tFileName;
BEGIN
    newHeader := HEADER;
    IF text.fileName # "" THEN
    	U.append8(newHeader, " - ");
    	U.append8(newHeader, text.fileName)
    END;
    IF newHeader # header THEN
    	header := newHeader;
		K.SetCaption(header)
    END
END SetCaption;


PROCEDURE Status (text: T.tText; height: INTEGER);
VAR
	line, col, chars, lines: INTEGER;
BEGIN
	T.getPos(text, col, line);
	T.getSelCnt(text, chars, lines);
	SB.setWidth(canvas.width + scrollWidth);
	SB.setPos(line, col);
	SB.setSel(chars, lines);
	SB.setEnc(E.eolNames[T.getEol(text)], E.names[T.getEnc(text)]);
	SB.draw(LEFT, height - BOTTOM + scrollWidth - 1);
	Tabs.modify(tabs, getIdx(text), text.modified)
END Status;


PROCEDURE DrawScroll (VAR scroll: Scroll.tScroll; left, top, value, maxVal: INTEGER);
BEGIN
	scroll.maxVal := maxVal;
    scroll.left := left;
    scroll.top := top;
    Scroll.setValue(scroll, value);
    Scroll.draw(scroll)
END DrawScroll;


PROCEDURE drawText;
BEGIN
	G.SetColor(canvas, K.colors.line);
	G.VLine(canvas, 0, 0, canvas.height - 1);
	G.DrawCanvas(canvas, LEFT, TOP)
END drawText;


PROCEDURE repaint;
VAR
    width, height, scrollX, scrollY: INTEGER;
BEGIN
    IF (text # NIL) & ~K.RolledUp() THEN
        IF confirm THEN
            K.DeleteButton(btnYes);
            K.DeleteButton(btnNo);
            confirm := FALSE;
            resetTimer;
            closing := FALSE
        END;
        IF ~search OR (searchText = "") THEN
            T.wordSel(text)
        END;
        K.ClientSize(width, height);
        IF switch THEN
            Status(text, height);
            Tabs.draw(tabs);
            IF search & T.search(text, searchText, cs, whole) THEN END;
            switch := FALSE
        END;
        T.draw(text);
        Status(text, height);

        T.getScroll(text, scrollX, scrollY);
        DrawScroll(vScroll, LEFT + canvas.width, TOP - 1, scrollY, text.count - 1);
        DrawScroll(hScroll, LEFT, TOP + canvas.height, scrollX, text.maxLength);
        IF search & searchOpened THEN
	        CheckBox.draw(BKW);
	        CheckBox.draw(CS);
	        CheckBox.draw(WH);
        END;
        drawText;
        NotFound;
        Replaced;
        Toolbar.enable(toolbar, btnSave,  text.modified);
        Toolbar.enable(toolbar, btnUndo,  ~ChangeLog.isFirstGuard(text.edition));
        Toolbar.enable(toolbar, btnRedo,  ~ChangeLog.isLastGuard(text.edition));
        Toolbar.enable(toolbar, btnUpper, T.selected(text));
        Toolbar.enable(toolbar, btnLower, T.selected(text));
        Toolbar.enable(toolbar, btnBuild, buildScript # "");
        Toolbar.enable(toolbar, btnRun,   runScript # "");
        Toolbar.drawIcons(toolbar)
    END
END repaint;


PROCEDURE resize;
VAR
    cliWidth, cliHeight: INTEGER;
BEGIN
    K.WinSize(winWidth, winHeight);
    IF winWidth < minWinWidth THEN
        winWidth := minWinWidth
    END;
    IF winHeight < minWinHeight THEN
        winHeight := minWinHeight
    END;
    K.SetWinSize(winWidth, winHeight);
    K.WinSize(winWidth, winHeight);
    K.ClientSize(cliWidth, cliHeight);
    IF font # G.font2 THEN
    	SB.SetFont(font)
    ELSE
    	SB.SetFont(G.font1)
    END;
    BOTTOM := SB.height() + scrollWidth - 1;
    G.destroy(canvas);
    canvas := G.CreateCanvas(cliWidth - (LEFT + RIGHT + 2 + RIGHT_PADDING), cliHeight - (TOP + BOTTOM + 1));
    Tabs.setArea(tabs, LEFT, TOP - Tabs.tabHeight, cliWidth - (LEFT + RIGHT + 2 + RIGHT_PADDING), Tabs.tabHeight);
    G.SetFont(canvas, font);
    T.setCanvas(canvas);
    T.resize(canvas.width, canvas.height);
    Scroll.resize(vScroll, vScroll.width, canvas.height + 2);
    Scroll.resize(hScroll, canvas.width + 1, hScroll.height);
END resize;


PROCEDURE SearchPanel (left, top: INTEGER);
VAR
    y, right, bottom: INTEGER;
BEGIN
    DEC(top, Tabs.tabHeight);
    right := left + EditBox_Width + SEARCH_PADDING*2;
    bottom := top + 395 + btnHeight + SEARCH_PADDING;
    Rect(left, top, right, bottom, K.colors.line);

    K.CreateButton(btnCloseSearch, right - 20, top, 20, 20, 0EF999FH, "");
    K.DrawLine(right - 14, top + 5, right - 5, top + 14, 0FFFFFFH);
    K.DrawLine(right - 15, top + 5, right - 5, top + 15, 0FFFFFFH);
    K.DrawLine(right - 15, top + 6, right - 6, top + 15, 0FFFFFFH);
    K.DrawLine(right - 15, top + 14, right - 6, top + 5, 0FFFFFFH);
    K.DrawLine(right - 15, top + 15, right - 5, top + 5, 0FFFFFFH);
    K.DrawLine(right - 14, top + 15, right - 5, top + 6, 0FFFFFFH);

    K.CreateButton(btnHideSearch, right - 40, top, 20, 20, K.colors.button, "");
    K.DrawLine(right - 34, top + 14, right - 26, top + 14, K.colors.button_text);
    K.DrawLine(right - 34, top + 15, right - 26, top + 15, K.colors.button_text);

    INC(top, 15);
    INC(left, SEARCH_PADDING);
    K.DrawText866(left, top, K.colors.work_text, "find");
    K.DrawText866(left, top + 55, K.colors.work_text, "replace with");
    K.DrawText866(left, top + 330, K.colors.work_text, "go to line");
    BKW.top := top + 110;
    BKW.left := left;
    CS.top := top + 140;
    CS.left := left;
    WH.top := top + 170;
    WH.left := left;
    FindEdit.top := top + 20;
    ReplaceEdit.top := top + 75;
    GotoEdit.top := top + 350;
    FindEdit.left := left;
    ReplaceEdit.left := left;
    GotoEdit.left := left;
    EB.draw(FindEdit);
    EB.draw(ReplaceEdit);
    EB.draw(GotoEdit);
    y := top + 200;
    K.CreateButton(btnFindNext, left, y, btnWidth, btnHeight, K.colors.button, "next"); INC(y, btnHeight + 10);
    K.CreateButton(btnReplace, left, y, btnWidth, btnHeight, K.colors.button, "replace"); INC(y, btnHeight + 10);
    K.CreateButton(btnReplaceAll, left, y, btnWidth + 5*fontWidth - 2, btnHeight, K.colors.button, "replace all");
    K.CreateButton(btnGoto, left, top + 380, btnWidth, btnHeight, K.colors.button, "go");
END SearchPanel;


PROCEDURE draw_window;
VAR
    width, height: INTEGER;
BEGIN
    K.BeginDraw;
    K.CreateWindow(30 + K.GetTickCount() MOD 128, 30 + K.GetTickCount() MOD 128, winWidth, winHeight, K.colors.work, 73H, 0, 0, "");
    IF (text # NIL) & ~K.RolledUp() THEN
    	IF confirm THEN
    		resetTimer
    	END;
        confirm := FALSE;
        K.ClientSize(width, height);

        K.DrawRect(0, 0, width, TOP - 1, K.colors.work);
        K.DrawRect(0, 0, LEFT, height, K.colors.work);
        K.DrawRect(width - RIGHT_PADDING, 0, RIGHT_PADDING, height, K.colors.work);
        K.DrawRect(LEFT + canvas.width + 1, TOP + canvas.height + 1, scrollWidth - 1, scrollWidth - 1, K.colors.work);
        Menu.DrawMain(mainMenu);

        Toolbar.draw(toolbar);
		SetCaption(text.fileName);
        Status(text, height);
        IF search & searchOpened THEN
            SearchPanel(LEFT_PADDING, TOP)
        END;
        Tabs.draw(tabs);
        repaint
    END;
    K.EndDraw
END draw_window;


PROCEDURE mouse (VAR x, y: INTEGER);
VAR
    msState: SET;
BEGIN
	K.mouse(msState, x, y);
	DEC(x, LEFT);
	DEC(y, TOP)
END mouse;


PROCEDURE stopTimer;
BEGIN
	T.hideCursor;
    timerEnabled := FALSE;
    CursorTime := CurrentTime;
    repaint
END stopTimer;


PROCEDURE OpenFile (VAR FileName: RW.tFileName; filter: ARRAY OF CHAR);
BEGIN
    stopTimer;
    OpenDlg.SetFilter(OD, filter);
    OpenDlg.Show(OD, 500, 400);
    WHILE OD.status = 2 DO
        K.Pause(30)
    END;
    IF OD.status = 1 THEN
        COPY(OD.FilePath, FileName)
    ELSE
        FileName := ""
    END;
    resetTimer
END OpenFile;


PROCEDURE error (s: RW.tFileName);
VAR
    temp: RW.tFileName;
BEGIN
	temp := "'CEdit: ";
	U.append8(temp, s);
	U.append8(temp, "' -E");
    K.Run("/sys/@notify", temp)
END error;


PROCEDURE saveError (name: RW.tFileName);
VAR
    s: RW.tFileName;
BEGIN
    s := "error saving file ";
    U.append8(s, name);
    error(s)
END saveError;


PROCEDURE saveAs (text: T.tText);
VAR
    fileName, name: RW.tFileName;
    ext: ARRAY 8 OF CHAR;
BEGIN
    OD._type := OpenDlg.tsave;
    U.getFileName(text.fileName, OD.FileName, U.SLASH);
    IF OD.FileName = "" THEN
        OD.FileName := "NewFile.";
        Languages.getExt(text.lang, ext);
        U.append8(OD.FileName, ext)
    END;
    OpenFile(fileName, EditFilter);
    IF fileName # "" THEN
        IF T.save(text, fileName) THEN
            T.setName(text, fileName);
            U.getFileName(fileName, name, U.SLASH);
            Tabs.rename(tabs, curText, name)
        ELSE
            saveError(fileName)
        END
    END
END saveAs;


PROCEDURE Switch (txt: T.tText);
BEGIN
    Tabs.switch(tabs, curText);
    text := txt;
    T.switch(txt);
    switch := TRUE
END Switch;


PROCEDURE save (text: T.tText);
BEGIN
    IF text.modified THEN
        IF text.fileName # "" THEN
            IF ~T.save(text, text.fileName) THEN
                saveError(text.fileName)
            END
        ELSE
            curText := getIdx(text);
            Switch(text);
            saveAs(text)
        END;
   		Tabs.modify(tabs, getIdx(text), text.modified)
    END
END save;


PROCEDURE saveAll;
VAR
    i: INTEGER;
    txt: T.tText;
BEGIN
    i := textsCount - 1;
    WHILE i >= 0 DO
    	txt := texts[i];
        IF txt.modified THEN
        	T.switch(txt);
            save(txt)
        END;
        DEC(i)
    END;
    T.switch(text)
END saveAll;


PROCEDURE insert (pos: INTEGER; txt: T.tText);
VAR
    i: INTEGER;
    name: RW.tFileName;
BEGIN
    FOR i := textsCount - 1 TO pos BY -1 DO
        texts[i + 1] := texts[i]
    END;
    texts[pos] := txt;
    INC(textsCount);
    curText := pos;
    IF txt.fileName = "" THEN
        name := "new"
    ELSE
        U.getFileName(txt.fileName, name, U.SLASH)
    END;
    Tabs.add(tabs, name);
    Switch(txt)
END insert;


PROCEDURE Confirm;
CONST
    width  = btnWidth*2 + 30;
    height = btnHeight*2 + 20;
VAR
    left, top, right, bottom: INTEGER;
BEGIN
	stopTimer;
    draw_window;
    confirm := TRUE;
    left := (canvas.width - width) DIV 2 + LEFT;
    top := (canvas.height - height) DIV 2 + TOP;
    right := left + width - 1;
    bottom := top + height - 1;
    K.DrawRect(left, top, width, height, K.colors.work);
    Rect(left, top, right, bottom, K.colors.line);
    K.DrawText866(left + (width - 10*fontWidth) DIV 2, top + 10, K.colors.work_text, "save file?");
    K.CreateButton(btnYes, left + 10, top + 35, btnWidth, btnHeight, K.colors.button, "yes");
    K.CreateButton(btnNo, left + 20 + btnWidth, top + 35, btnWidth, btnHeight, K.colors.button, "no");
END Confirm;


PROCEDURE closeFile (conf: BOOLEAN; n: INTEGER);
VAR
    i: INTEGER;
BEGIN
    IF texts[n].modified & conf THEN
        Confirm
    ELSE
        Tabs.delete(tabs, n);
        T.destroy(texts[n]);
        FOR i := n + 1 TO textsCount - 1 DO
            texts[i - 1] := texts[i]
        END;
        DEC(textsCount);
        IF (curText = textsCount) OR (n < curText) THEN
            DEC(curText)
        END;
        IF curText >= 0 THEN
            Switch(texts[curText])
        ELSE
            K.Exit
        END;
        draw_window
    END
END closeFile;


PROCEDURE NewFile;
VAR
    nov: T.tText;
BEGIN
    IF textsCount < maxTexts THEN
        nov := T.New();
        T.SetPos(nov, 0, 0);
        insert(textsCount, nov)
    ELSE
        error("too many files")
    END
END NewFile;


PROCEDURE getFileNum (fileName: RW.tFileName): INTEGER;
VAR
    i: INTEGER;

    PROCEDURE nameEq (name1, name2: RW.tFileName): BOOLEAN;
    VAR
        n1, n2: RW.tFileName;
    BEGIN
        n1 := name1;
        n2 := name2;
        U.upcase(n1);
        U.upcase(n2)
        RETURN n1 = n2
    END nameEq;

BEGIN
    i := 0;
    WHILE (i < textsCount) & ~nameEq(texts[i].fileName, fileName) DO
        INC(i)
    END;
    IF i = textsCount THEN
        i := -1
    END
    RETURN i
END getFileNum;


PROCEDURE SwitchTab (n: INTEGER);
BEGIN
    curText := n;
    Tabs.switch(tabs, n);
    Switch(texts[n]);
    resetTimer;
    draw_window
END SwitchTab;


PROCEDURE open (_fileName: RW.tFileName): BOOLEAN;
VAR
	fileName: RW.tFileName;
    nov: T.tText;
    err, n: INTEGER;
    res: BOOLEAN;
BEGIN
	res := TRUE;
    IF textsCount < maxTexts THEN
    	fileName := _fileName;
    	IF fileName = "" THEN
        	OD._type := OpenDlg.topen;
        	OpenFile(fileName, EditFilter)
        END;
        IF fileName # "" THEN
            n := getFileNum(fileName);
            IF n = -1 THEN
                nov := T.open(fileName, err);
                IF nov = NIL THEN
                    error("error opening file");
                    SwitchTab(curText);
                    res := FALSE
                ELSE
                	T.SetPos(nov, 0, 0);
                    insert(textsCount, nov);
                    Scroll.setValue(hScroll, 0);
                    Scroll.setValue(vScroll, 0)
                END
            ELSE
                SwitchTab(n)
            END
        END
    ELSE
        error("too many files");
        res := FALSE
    END
    RETURN res
END open;


PROCEDURE OpenDial;
VAR
	res: BOOLEAN;
BEGIN
	res := open("")
END OpenDial;


PROCEDURE createSearchForm;
BEGIN
	EB.create(LEFT_PADDING, TOP + 20, EditBox_Width, EDITBOX_MAXCHARS, FindEdit);
	EB.create(LEFT_PADDING, TOP + 20 + 55, EditBox_Width, EDITBOX_MAXCHARS, ReplaceEdit);
    EB.create(LEFT_PADDING, TOP + 20 + 330, EditBox_Width, EDITBOX_MAXCHARS, GotoEdit);
    INCL(GotoEdit.flags, 15);
    CheckBox.create("backward", BKW);
    CheckBox.create("match case", CS);
    CheckBox.create("whole word", WH);
END createSearchForm;


PROCEDURE EditBox_Get (edit: EB.tEditBox; VAR s: ARRAY OF WCHAR);
VAR
    str: ARRAY EDITBOX_MAXCHARS + 1 OF CHAR;
    i: INTEGER;
BEGIN
    EB.get(edit, str);
    i := 0;
    WHILE str[i] # 0X DO
        s[i] := WCHR(E.cp866[ORD(str[i])]);
        INC(i)
    END;
    s[i] := 0X
END EditBox_Get;


PROCEDURE Search;
BEGIN
    search := ~search;
    LEFT := LEFT_PADDING;
    IF search THEN
        searchOpened := TRUE;
        INC(LEFT, EditBox_Width + SEARCH_PADDING*2 + 4);
        IF T.search(text, searchText, cs, whole) THEN END
    ELSE
        IF T.search(text, "", FALSE, FALSE) THEN END
    END;
    SetFocus(FindEdit, search);
    resize;
    draw_window
END Search;


PROCEDURE click (x, y: INTEGER): INTEGER;
VAR
    scrollX, scrollY: INTEGER;
    shift, ctrl: BOOLEAN;
BEGIN
    K.getKBState(shift, ctrl);
    T.getScroll(text, scrollX, scrollY);
    T.scroll(text, hScroll.value - scrollX, vScroll.value - scrollY);
    IF U.between(0, x, canvas.width - 1) & U.between(0, y, canvas.height - 1) THEN
        leftButton := TRUE;
        SetFocus(FindEdit, FALSE);
        IF ~shift THEN
            T.resetSelect(text)
        END;
        T.mouse(text, x, y)
    END;
    repaint
    RETURN K.GetTickCount()
END click;


PROCEDURE Close;
VAR
    cont: BOOLEAN;
BEGIN
    closing := TRUE;
    cont := TRUE;
    WHILE (textsCount > 0) & cont DO
        IF text.modified THEN
            Confirm;
            cont := FALSE
        ELSE
            closeFile(FALSE, curText);
            repaint
        END
    END
END Close;


PROCEDURE CloseMenu;
BEGIN
    Menu.close(subEOL);
    Menu.close(subCurLine);
    Menu.close(subIndent);
    Menu.close(subCase);
    Menu.close(subBookmark);
    Menu.close(menuFile);
    Menu.close(menuEdit);
    Menu.close(menuSearch);
    Menu.close(menuEncoding);
    Menu.close(menuView);
    Menu.close(menuLanguage);
    Menu.close(menuProgram);
    Menu.close(menuTools);
    Menu.close(context)
END CloseMenu;


PROCEDURE goto;
VAR
    gotoVal: INTEGER;
BEGIN
    EditBox_Get(GotoEdit, gotoText);
    IF U.str2int(gotoText, gotoVal) & T.goto(text, gotoVal) THEN
    	SetFocus(GotoEdit, FALSE)
    END
END goto;


PROCEDURE Script (script: ARRAY OF CHAR);
BEGIN
    IF script # "" THEN
    	U.getPath(script, CurFolder);
    	K.SetCurFolder(CurFolder);
        K.Run("/sys/@open", script)
    END
END Script;


PROCEDURE ShowSearchPanel (goto: BOOLEAN);
VAR
	i: INTEGER;
BEGIN
	IF T.selected(text) & ~goto THEN
		T.getSelectedText(text, new_searchText);
		IF new_searchText # "" THEN
			i := 0;
			WHILE (new_searchText[i] # 0X) & (new_searchText[i] # Lines.TAB) DO
				INC(i)
			END;
			IF new_searchText[i] = 0X THEN
				searchText := new_searchText;
				EB.set(FindEdit, searchText);
				notFound := ~T.search(text, searchText, cs, whole);
			END
		END
	END;
    IF ~search THEN
        Search
    ELSIF ~searchOpened THEN
        search := FALSE;
        Search
    END;
    IF goto THEN
    	SetFocus(GotoEdit, TRUE)
    ELSE
    	SetFocus(FindEdit, TRUE)
    END
END ShowSearchPanel;


PROCEDURE CanvasToScreen (VAR x, y: INTEGER);
VAR
    cliX, cliY,
    winX, winY: INTEGER;
BEGIN
    K.WinPos(winX, winY);
    K.ClientPos(cliX, cliY);
    x := x + winX + cliX + LEFT;
    y := y + winY + cliY + TOP;
END CanvasToScreen;


PROCEDURE ShowMenu (menu: Menu.tMenu);
VAR
    winX, winY, cliX, cliY, x, y, i: INTEGER;
    selected, enabled: BOOLEAN;
BEGIN
    IF menu = context THEN
        mouse(x, y);
        IF ~(U.between(0, x, canvas.width - 1) & U.between(0, y, canvas.height - 1)) THEN
            menu := NIL
        END
    ELSE
        K.WinPos(winX, winY);
        K.ClientPos(cliX, cliY);
        x := winX + cliX;
        y := Menu.MainMenuHeight + winY + cliY
    END;
    selected := T.selected(text);

    IF menu = menuFile THEN
        Menu.setEnabled(menu, menuSave, text.modified);
        Menu.setEnabled(menu, menuFolder, text.fileName # "");
        i := 0;
        WHILE (i < textsCount) & ~texts[i].modified DO
            INC(i)
        END;
        Menu.setEnabled(menu, menuSaveAll, i < textsCount);
        INC(x, menuFileX)
    ELSIF (menu = menuEdit) OR (menu = context) THEN
        Menu.setEnabled(menu, menuUndo, ~ChangeLog.isFirstGuard(text.edition));
        Menu.setEnabled(menu, menuRedo, ~ChangeLog.isLastGuard(text.edition));
        Menu.setEnabled(menu, menuCut, selected);
        Menu.setEnabled(menu, menuCopy, selected);
        Menu.setEnabled(menu, menuDelete, selected);
        Menu.setEnabled(menu, menuPaste, CB.available());
        IF menu = menuEdit THEN
            INC(x, menuEditX)
        ELSE
            IF y + menu.height >= canvas.height THEN
                DEC(y, menu.height)
            END;
            IF x + menu.width >= canvas.width THEN
                DEC(x, menu.width)
            END;
            CanvasToScreen(x, y)
        END
    ELSIF menu = menuEncoding THEN
        Menu.option(menu, menuUTF8BOM, T.getEnc(text) = E.UTF8BOM);
        Menu.option(menu, menuUTF8,    T.getEnc(text) = E.UTF8);
        Menu.option(menu, menuCP866,   T.getEnc(text) = E.CP866);
        Menu.option(menu, menuWin1251, T.getEnc(text) = E.W1251);
        INC(x, menuEncodingX)
    ELSIF menu = menuView THEN
        Menu.check(menu, menuNumbers,    text.numbers);
        Menu.option(menu, menuFontSmall,  font = G.font0);
        Menu.option(menu, menuFontMedium, font = G.font1);
        Menu.option(menu, menuFontBig,    font = G.font2);
        FOR i := 0 TO Ini.sections.count - 1 DO
            Menu.option(menu, menuColors + i, Ini.curSectionNum = i)
        END;
        INC(x, menuViewX)
    ELSIF menu = menuLanguage THEN
        Menu.option(menu, menuText,   text.lang = Languages.langText);
        Menu.option(menu, menuC,      text.lang = Languages.langC);
        Menu.option(menu, menuFasm,   text.lang = Languages.langFasm);
        Menu.option(menu, menuIni,    text.lang = Languages.langIni);
        Menu.option(menu, menuJSON,   text.lang = Languages.langJSON);
        Menu.option(menu, menuLua,    text.lang = Languages.langLua);
        Menu.option(menu, menuOberon, text.lang = Languages.langOberon);
        Menu.option(menu, menuPascal, text.lang = Languages.langPascal);
        INC(x, menuLanguageX)
    ELSIF menu = menuProgram THEN
        Menu.setEnabled(menu, menuBuild, buildScript # "");
        Menu.setEnabled(menu, menuDebug, debugScript # "");
        Menu.setEnabled(menu, menuRun, runScript # "");
        INC(x, menuProgramX)
    ELSIF menu = menuTools THEN
        INC(x, menuToolsX)
    ELSIF menu = menuSearch THEN
        INC(x, menuSearchX)
    END;

    enabled := search & (searchText # "");
    Menu.setEnabled(menuSearch, menuFindNext, enabled);
    Menu.setEnabled(menuSearch, menuFindPrev, enabled);

    Menu.setEnabled(subIndent, menuIncInd, selected);
    Menu.setEnabled(subIndent, menuDecInd, selected);

    Menu.setEnabled(subCase, menuUpper, selected);
    Menu.setEnabled(subCase, menuLower, selected);

	Menu.option(subEOL, menuCRLF, T.getEol(text) = E.EOL_CRLF);
	Menu.option(subEOL, menuLF,   T.getEol(text) = E.EOL_LF);
	Menu.option(subEOL, menuCR,   T.getEol(text) = E.EOL_CR);

    IF menu # NIL THEN
    	timerEnabled := FALSE;
        IF Menu.opened(menu) THEN
            Menu.close(menu)
        END;
        Menu.open(menu, x, y);
        menuActive := TRUE
    END
END ShowMenu;


PROCEDURE setScript (VAR script: RW.tFileName);
VAR
	temp: RW.tFileName;
BEGIN
	OpenFile(temp, ShellFilter);
	IF temp # "" THEN
		script := temp
	END
END setScript;


PROCEDURE ClickMenu;
VAR
	item: List.tItem;
BEGIN
	IF Menu.MenuItem < 0 THEN
		item := List.getItem(mainMenu, (-Menu.MenuItem - mainMenuBtn) MOD mainMenu.count);
		IF item # NIL THEN
			ShowMenu(item(Menu.tMainItem).menu)
		END;
		Menu.SetItem(0)
	END;
    CASE Menu.MenuItem OF
    |0:
    |menuCut:       T.key(text, ORD("X"), FALSE, TRUE)
    |menuCopy:      T.key(text, ORD("C"), FALSE, TRUE)
    |menuPaste:     T.key(text, ORD("V"), FALSE, TRUE)
    |menuDelete:    T.key(text,       46, FALSE, FALSE)
    |menuSelectAll: T.key(text, ORD("A"), FALSE, TRUE)

    |menuNew:
        NewFile
    |menuOpen:
        OpenDial
    |menuSave:
        save(text);
        repaint
    |menuSaveAs:
        saveAs(text);
        repaint
    |menuSaveAll:
        saveAll;
        repaint
    |menuClose:
        closeFile(TRUE, curText)
    |menuFolder:
        K.Run("/sys/File Managers/Eolite", text.fileName)
    |menuExit:
        Close
    |menuUndo:
        T.undo(text);
        repaint
    |menuRedo:
        T.redo(text);
        repaint
    |menuFind:
        ShowSearchPanel(FALSE)
    |menuFindNext:
        notFound := ~T.findNext(text, BKW.value);
        menuFindClicked := TRUE
    |menuFindPrev:
        notFound := ~T.findNext(text, ~BKW.value);
        menuFindClicked := TRUE
    |menuGoto:
        ShowSearchPanel(TRUE)
    |menuToggleBookmark:
    	T.toggleLabel(text)
    |menuNextBookmark:
    	T.gotoLabel(text, TRUE)
    |menuPrevBookmark:
    	T.gotoLabel(text, FALSE)
    |menuNumbers:
        T.toggleNumbers(text)
    |menuFontSmall:
    	font := G.font0;
    	resize
    |menuFontMedium:
    	font := G.font1;
    	resize
    |menuFontBig:
    	font := G.font2;
    	resize
    |menuText:
        T.setLang(text, Languages.langText)
    |menuC:
        T.setLang(text, Languages.langC)
    |menuFasm:
        T.setLang(text, Languages.langFasm)
    |menuIni:
        T.setLang(text, Languages.langIni)
    |menuJSON:
        T.setLang(text, Languages.langJSON)
    |menuLua:
        T.setLang(text, Languages.langLua)
    |menuOberon:
        T.setLang(text, Languages.langOberon)
    |menuPascal:
        T.setLang(text, Languages.langPascal)
    |menuBuild:
        Script(buildScript)
    |menuBuildScript:
    	setScript(buildScript)
    |menuRun:
        Script(runScript)
    |menuRunScript:
    	setScript(runScript)
    |menuDebug:
        Script(debugScript)
    |menuDebugScript:
    	setScript(debugScript)
    |menuUTF8BOM:
    	T.setEnc(text, E.UTF8BOM)
    |menuUTF8:
    	T.setEnc(text, E.UTF8)
    |menuCP866:
    	T.setEnc(text, E.CP866)
    |menuWin1251:
    	T.setEnc(text, E.W1251)
    |menuLF:
    	T.setEol(text, E.EOL_LF)
    |menuCRLF:
    	T.setEol(text, E.EOL_CRLF)
    |menuCR:
    	T.setEol(text, E.EOL_CR)
    |menuPipet:
        K.Run("/sys/develop/pipet", "")
    |menuMagnify:
        K.Run("/sys/magnify", "")
    |menuBoard:
        K.Run("/sys/develop/board", "")
    |menuSysFunc:
        K.Run("/sys/docpack", "f")
    |menuColors..menuMaxColors:
        Ini.selectSection(Menu.MenuItem - menuColors)
    |menuMoveUp:
    	T.MoveLines(text, FALSE)
    |menuMoveDown:
		T.MoveLines(text, TRUE)
    |menuDuplicate:
    	T.dupLine(text)
    |menuRemove:
    	T.delLine(text)
    |menuIncInd:
    	T.Indent(text, TRUE)
	|menuDecInd:
		T.Indent(text, FALSE)
	|menuUpper:
		T.chCase(text, TRUE)
	|menuLower:
		T.chCase(text, FALSE)
    END;
    Menu.SetItem(0)
END ClickMenu;


PROCEDURE CreateContextMenu (): Menu.tMenu;
VAR
    menu: List.tList;
BEGIN
    menu := List.create(NIL);
    Menu.AddMenuItem(menu, menuUndo,      "undo         ctrl-Z");
    Menu.AddMenuItem(menu, menuRedo,      "redo         ctrl-Y");
    Menu.delimiter(menu);
    Menu.AddMenuItem(menu, menuCut,       "cut          ctrl-X");
    Menu.AddMenuItem(menu, menuCopy,      "copy         ctrl-C");
    Menu.AddMenuItem(menu, menuPaste,     "paste        ctrl-V");
    Menu.AddMenuItem(menu, menuDelete,    "delete");
    Menu.delimiter(menu);
    Menu.AddMenuItem(menu, menuSelectAll, "select all   ctrl-A");
    RETURN Menu.create(menu)
END CreateContextMenu;


PROCEDURE CreateMenuFile (): Menu.tMenu;
VAR
    menu: List.tList;
BEGIN
    menu := List.create(NIL);
    Menu.AddMenuItem(menu, menuNew,     "new         ctrl-N");
    Menu.AddMenuItem(menu, menuOpen,    "open        ctrl-O");
    Menu.AddMenuItem(menu, menuSave,    "save        ctrl-S");
    Menu.AddMenuItem(menu, menuSaveAs,  "save as");
    Menu.AddMenuItem(menu, menuSaveAll, "save all");
    Menu.AddMenuItem(menu, menuFolder,  "folder");
    Menu.delimiter(menu);
    Menu.AddMenuItem(menu, menuClose,   "close       ctrl-W");
    Menu.delimiter(menu);
    Menu.AddMenuItem(menu, menuExit,    "exit");
    RETURN Menu.create(menu)
END CreateMenuFile;


PROCEDURE CreateMenuEdit (): Menu.tMenu;
VAR
    menu: List.tList;
BEGIN
    menu := List.create(NIL);
    Menu.AddMenuItem(menu, menuUndo,      "undo            ctrl-Z");
    Menu.AddMenuItem(menu, menuRedo,      "redo            ctrl-Y");
    Menu.delimiter(menu);
    Menu.AddMenuItem(menu, menuCut,       "cut             ctrl-X");
    Menu.AddMenuItem(menu, menuCopy,      "copy            ctrl-C");
    Menu.AddMenuItem(menu, menuPaste,     "paste           ctrl-V");
    Menu.AddMenuItem(menu, menuDelete,    "delete");
    Menu.delimiter(menu);
    Menu.AddMenuItem(menu, menuSelectAll, "select all      ctrl-A");
    Menu.delimiter(menu);
    Menu.AddMenuItem(menu, menuCurLine,   "current line");
    Menu.child(menu, subCurLine);
    Menu.AddMenuItem(menu, menuIndent,    "indent");
    Menu.child(menu, subIndent);
    Menu.AddMenuItem(menu, menuCase,      "case");
    Menu.child(menu, subCase);
    RETURN Menu.create(menu)
END CreateMenuEdit;


PROCEDURE CreateMenuSearch (): Menu.tMenu;
VAR
    menu: List.tList;
BEGIN
    menu := List.create(NIL);
    Menu.AddMenuItem(menu, menuFind,     "search           ctrl-F");
    Menu.AddMenuItem(menu, menuFindNext, "find next        F3");
    Menu.AddMenuItem(menu, menuFindPrev, "find previous    shift-F3");
    Menu.AddMenuItem(menu, menuGoto,     "go to line       ctrl-G");
    Menu.delimiter(menu);
    Menu.AddMenuItem(menu, menuBookmark, "bookmark");
    Menu.child(menu, subBookmark);
    RETURN Menu.create(menu)
END CreateMenuSearch;


PROCEDURE CreateMenuEncoding (): Menu.tMenu;
VAR
    menu: List.tList;
BEGIN
    menu := List.create(NIL);
    Menu.AddMenuItem(menu, menuUTF8BOM, E.names[E.UTF8BOM]);
    Menu.AddMenuItem(menu, menuUTF8,    E.names[E.UTF8]);
    Menu.AddMenuItem(menu, menuCP866,   E.names[E.CP866]);
    Menu.AddMenuItem(menu, menuWin1251, E.names[E.W1251]);
    Menu.delimiter(menu);
    Menu.AddMenuItem(menu, menuEOL,     "EOL");
    Menu.child(menu, subEOL);
    RETURN Menu.create(menu)
END CreateMenuEncoding;


PROCEDURE CreateMenuEOL (): Menu.tMenu;
VAR
    menu: List.tList;
BEGIN
    menu := List.create(NIL);
    Menu.AddMenuItem(menu, menuCRLF, E.eolNames[E.EOL_CRLF]);
    Menu.AddMenuItem(menu, menuLF,   E.eolNames[E.EOL_LF]);
    Menu.AddMenuItem(menu, menuCR,   E.eolNames[E.EOL_CR]);
    RETURN Menu.create(menu)
END CreateMenuEOL;


PROCEDURE CreateMenuView (): Menu.tMenu;
VAR
    menu: List.tList;
    colors: Ini.tSection;
    idx: INTEGER;
BEGIN
    menu := List.create(NIL);
    Menu.AddMenuItem(menu, menuNumbers,  "line numbers");
    Menu.delimiter(menu);
    Menu.AddMenuItem(menu, menuFontSmall,  "small");
    Menu.AddMenuItem(menu, menuFontMedium, "medium");
    Menu.AddMenuItem(menu, menuFontBig,    "big");
    Menu.delimiter(menu);

    colors := Ini.sections.first(Ini.tSection);
    idx := menuColors;
    WHILE colors # NIL DO
        Menu.AddMenuItem(menu, idx, colors.name);
        INC(idx);
        colors := colors.next(Ini.tSection)
    END;

    RETURN Menu.create(menu)
END CreateMenuView;


PROCEDURE CreateMenuLanguage (): Menu.tMenu;
VAR
    menu: List.tList;
BEGIN
    menu := List.create(NIL);
    Menu.AddMenuItem(menu, menuC,      "C");
    Menu.AddMenuItem(menu, menuFasm,   "Fasm");
    Menu.AddMenuItem(menu, menuIni,    "Ini");
    Menu.AddMenuItem(menu, menuJSON,   "JSON");
    Menu.AddMenuItem(menu, menuLua,    "Lua");
    Menu.AddMenuItem(menu, menuOberon, "Oberon");
    Menu.AddMenuItem(menu, menuPascal, "Pascal");
    Menu.delimiter(menu);
    Menu.AddMenuItem(menu, menuText,   "Text");
    RETURN Menu.create(menu)
END CreateMenuLanguage;


PROCEDURE CreateMenuProgram (): Menu.tMenu;
VAR
    menu: List.tList;
BEGIN
    menu := List.create(NIL);
    Menu.AddMenuItem(menu, menuBuild,       "build    ctrl-F9");
    Menu.AddMenuItem(menu, menuBuildScript, "script");
    Menu.delimiter(menu);
    Menu.AddMenuItem(menu, menuRun,         "run           F9");
    Menu.AddMenuItem(menu, menuRunScript,   "script");
    Menu.delimiter(menu);
    Menu.AddMenuItem(menu, menuDebug,       "debug");
    Menu.AddMenuItem(menu, menuDebugScript, "script");
    RETURN Menu.create(menu)
END CreateMenuProgram;


PROCEDURE CreateMenuTools (): Menu.tMenu;
VAR
    menu: List.tList;
BEGIN
    menu := List.create(NIL);
    Menu.AddMenuItem(menu, menuPipet,   "pipet");
    Menu.AddMenuItem(menu, menuMagnify, "magnify");
    Menu.AddMenuItem(menu, menuBoard,   "board");
    Menu.AddMenuItem(menu, menuSysFunc, "system functions");
    RETURN Menu.create(menu)
END CreateMenuTools;


PROCEDURE CreateMenuCurLine(): Menu.tMenu;
VAR
    menu: List.tList;
BEGIN
    menu := List.create(NIL);
    Menu.AddMenuItem(menu, menuMoveUp,    "move up     ctrl-Up");
    Menu.AddMenuItem(menu, menuMoveDown,  "move down   ctrl-Down");
    Menu.AddMenuItem(menu, menuDuplicate, "duplicate   ctrl-D");
    Menu.AddMenuItem(menu, menuRemove,    "remove      ctrl-Del");
    RETURN Menu.create(menu)
END CreateMenuCurLine;


PROCEDURE CreateMenuIndent(): Menu.tMenu;
VAR
    menu: List.tList;
BEGIN
    menu := List.create(NIL);
    Menu.AddMenuItem(menu, menuIncInd, "increase    Tab");
    Menu.AddMenuItem(menu, menuDecInd, "decrease    shift-Bksp");
    RETURN Menu.create(menu)
END CreateMenuIndent;


PROCEDURE CreateMenuCase(): Menu.tMenu;
VAR
    menu: List.tList;
BEGIN
    menu := List.create(NIL);
    Menu.AddMenuItem(menu, menuUpper, "UPPER    ctrl-U");
    Menu.AddMenuItem(menu, menuLower, "lower    ctrl-L");
    RETURN Menu.create(menu)
END CreateMenuCase;


PROCEDURE CreateMenuBookmark(): Menu.tMenu;
VAR
    menu: List.tList;
BEGIN
    menu := List.create(NIL);
    Menu.AddMenuItem(menu, menuToggleBookmark, "toggle      ctrl-F2");
    Menu.AddMenuItem(menu, menuNextBookmark,   "next        F2");
    Menu.AddMenuItem(menu, menuPrevBookmark,   "previous    shift-F2");
    RETURN Menu.create(menu)
END CreateMenuBookmark;


PROCEDURE Shortcuts;
BEGIN
    Menu.AddShortcut(17 + CTRL,  menuClose);
    Menu.AddShortcut(21 + CTRL,  menuRedo);
    Menu.AddShortcut(30 + CTRL,  menuSelectAll);
    Menu.AddShortcut(32 + CTRL,  menuDuplicate);
    Menu.AddShortcut(33 + CTRL,  menuFind);
    Menu.AddShortcut(35 + CTRL,  menuFind);
    Menu.AddShortcut(34 + CTRL,  menuGoto);
    Menu.AddShortcut(44 + CTRL,  menuUndo);
    Menu.AddShortcut(45 + CTRL,  menuCut);
    Menu.AddShortcut(46 + CTRL,  menuCopy);
    Menu.AddShortcut(47 + CTRL,  menuPaste);
    Menu.AddShortcut(24 + CTRL,  menuOpen);
    Menu.AddShortcut(31 + CTRL,  menuSave);
    Menu.AddShortcut(49 + CTRL,  menuNew);
    Menu.AddShortcut(67 + CTRL,  menuBuild);
    Menu.AddShortcut(83 + CTRL,  menuRemove);
    Menu.AddShortcut(22 + CTRL,  menuUpper);
    Menu.AddShortcut(38 + CTRL,  menuLower);
    Menu.AddShortcut(60 + CTRL,  menuToggleBookmark);
    Menu.AddShortcut(72 + CTRL,  menuMoveUp);
    Menu.AddShortcut(80 + CTRL,  menuMoveDown);
    Menu.AddShortcut(83,         menuDelete);
    Menu.AddShortcut(67,         menuRun);
    Menu.AddShortcut(15,         menuIncInd);
    Menu.AddShortcut(14 + SHIFT, menuDecInd);
    Menu.AddShortcut(60 + SHIFT, menuPrevBookmark);
    Menu.AddShortcut(60,         menuNextBookmark);
    Menu.AddShortcut(61 + SHIFT, menuFindPrev);
    Menu.AddShortcut(61,         menuFindNext);
END Shortcuts;


PROCEDURE HideSearch;
BEGIN
    SetFocus(FindEdit, FALSE);
    searchOpened := FALSE;
    LEFT := LEFT_PADDING;
    resize;
    draw_window
END HideSearch;


PROCEDURE KeyDown (key: INTEGER);
VAR
    keyCode: INTEGER;
    shift, ctrl: BOOLEAN;
BEGIN
	K.getKBState(shift, ctrl);
    keyCode := key DIV 65536;
    IF confirm THEN
        IF keyCode = 28 THEN (* Enter *)
            save(text);
            IF ~text.modified THEN
                closeFile(FALSE, curText)
            END
        END;
        key := -1
    ELSE
        IF keyCode = 61 THEN (* F3 *)
            key := -1;
            IF search & (searchText # "") THEN
                IF shift THEN
                    notFound := ~T.findNext(text, ~BKW.value)
                ELSE
                    notFound := ~T.findNext(text, BKW.value)
                END
            END
        ELSIF keyCode = 60 THEN (* F2 *)
            key := -1;
            IF ctrl THEN
                T.toggleLabel(text)
            ELSE
                T.gotoLabel(text, ~shift)
            END
        ELSIF keyCode = 67 THEN (* F9 *)
            key := -1;
            IF ctrl THEN
                Script(buildScript)
            ELSE
                Script(runScript)
            END
        ELSIF keyCode = 68 THEN (* F10 *)
        	IF shift THEN
        		ShowMenu(context)
        	ELSE
        		ShowMenu(menuFile)
        	END;
            key := -1
        ELSIF keyCode = 1 THEN (* Esc *)
            IF search THEN
            	IF shift THEN
            		HideSearch
            	ELSE
                	Search
                END
            END;
            key := -1
        ELSIF (keyCode = 55) & (key DIV 256 MOD 256 = 52) THEN (* PrtScn *)
            key := -1
        ELSIF (keyCode = 14) & shift THEN (* shift+Backspace *)
            key := -1;
            T.input(text, -8)
        ELSIF (keyCode = 15) & ctrl THEN (* ctrl+Tab *)
            key := -1;
            SwitchTab((curText + 1) MOD textsCount)
        ELSIF ((keyCode = 33) OR (keyCode = 35)) & ctrl THEN (* ctrl+F, ctrl+H*)
            key := -1;
            ShowSearchPanel(FALSE)
        ELSIF (keyCode = 34) & ctrl THEN (* ctrl+G *)
            key := -1;
            ShowSearchPanel(TRUE)
        ELSIF (keyCode = 18) & ctrl THEN (* ctrl+E *)
            key := -1;
            T.selectWord(text)
        ELSE
            IF EditBox_Focus(FindEdit) THEN
            	IF keyCode = 15 THEN (* Tab *)
            		SetFocus(ReplaceEdit, TRUE)
            	ELSE
	                EB.key(FindEdit, key);
	                EditBox_Get(FindEdit, new_searchText);
	                IF new_searchText # searchText THEN
	                    searchText := new_searchText;
	                    notFound := ~T.search(text, searchText, cs, whole)
	                END
                END
            ELSIF EditBox_Focus(ReplaceEdit) THEN
            	IF keyCode = 15 THEN (* Tab *)
            		SetFocus(GotoEdit, TRUE)
            	ELSE
                	EB.key(ReplaceEdit, key);
                	EditBox_Get(ReplaceEdit, replaceText)
                END
            ELSIF EditBox_Focus(GotoEdit) THEN
            	IF keyCode = 15 THEN (* Tab *)
            		SetFocus(FindEdit, TRUE)
            	ELSE
	                IF (key DIV 256) MOD 256 = 13 THEN
	                    goto
	                ELSE
	                    EB.key(GotoEdit, key)
	                END
                END
            ELSE
                CASE keyCode OF
                |73: key := 33
                |81: key := 34
                |71: key := 36
                |79: key := 35
                |72: key := 38
                |80: key := 40
                |75: key := 37
                |77: key := 39
                |82, 91, 219, 92, 220: key := -1 (* insert, windows *)
                |93: ShowMenu(context); key := -1
                |83: key := 46
                |59, 62..66, 87, 88: key := -1 (* F1, F4..F8, F11, F12 *)
                ELSE
                    IF ctrl THEN
                        CASE keyCode OF
                        |17: closeFile(TRUE, curText);
                             key := -2
                        |21: T.redo(text);
                             key := -1
                        |22: key := ORD("U")
                        |24: key := -1;
                             OpenDial
                        |30: key := ORD("A")
                        |31: key := -1;
                             save(text)
                        |32: key := ORD("D")
                        |38: key := ORD("L")
                        |44: T.undo(text);
                             key := -1
                        |45: key := ORD("X")
                        |46: key := ORD("C")
                        |47: key := ORD("V")
                        |49,
                         20: key := -1;
                             NewFile
                        ELSE
                            key := -1
                        END
                    ELSE
                        T.input(text, E.cp866[key DIV 256 MOD 256]);
                        key := -1
                    END
                END;
                IF key >= 0 THEN
                    T.key(text, key, shift, ctrl)
                END
            END
        END
    END;
    IF key # -2 THEN
        repaint
    END
END KeyDown;


PROCEDURE BtnClick;
VAR
    btn: INTEGER;
    middle, exit: BOOLEAN;
    menu: Menu.tMenu;
BEGIN
	exit := FALSE;
    btn := K.ButtonCode(middle);
    IF U.between(Tabs.btnID, btn, Tabs.btnID + maxTexts - 1) THEN
        DEC(btn, Tabs.btnID);
        IF middle THEN
            IF texts[btn].modified THEN
                SwitchTab(btn)
            END;
            closeFile(TRUE, btn)
        ELSE
            SwitchTab(btn)
        END;
        btn := 0
    ELSE
        IF middle THEN
            btn := 0
        END
    END;
    IF btn # 0 THEN
    	menu := Menu.ClickMain(mainMenu, btn);
    	IF menu # NIL THEN
    		ShowMenu(menu);
    		btn := 0
    	END
    END;

    CASE btn OF
    |0:
    |Tabs.btnLeft, Tabs.btnRight:
    	Tabs.scroll(tabs, btn);
    	switch := TRUE
    |btnNo:
        exit := closing;
        closeFile(FALSE, curText);
        repaint
    |btnYes:
        exit := closing;
        save(text);
        IF ~text.modified THEN
            closeFile(FALSE, curText)
        END;
        repaint
    |btnClose:
    	exit := TRUE
    |btnNew:
        NewFile
    |btnOpen:
        OpenDial
    |btnSave:
        save(text)
    |btnSearch:
        ShowSearchPanel(FALSE)
    |btnCloseSearch:
        Search
    |btnHideSearch:
        HideSearch
    |btnUndo:
        T.undo(text)
    |btnRedo:
        T.redo(text)
    |btnUpper:
        T.chCase(text, TRUE)
    |btnLower:
        T.chCase(text, FALSE)
    |btnBuild:
        Script(buildScript)
    |btnRun:
        Script(runScript)
    |btnFindNext:
        IF searchText # "" THEN
            notFound := ~T.findNext(text, BKW.value);
            SetFocus(FindEdit, FALSE)
        END
    |btnReplace:
        T.replace(text, replaceText, LENGTH(searchText));
        SetFocus(FindEdit, FALSE)
    |btnReplaceAll:
        notFound := ~T.search(text, searchText, cs, whole);
        IF ~notFound THEN
            replaced := T.replaceAll(text, replaceText, LENGTH(searchText));
        END;
        SetFocus(FindEdit, FALSE)
    |btnGoto:
        goto
    END;

    IF ~middle THEN
		IF exit THEN
			Close
		ELSE
			repaint
		END
	END
END BtnClick;


PROCEDURE MouseEvent (VAR resized: BOOLEAN; VAR firstClickX, firstClickY, time: INTEGER);
CONST
    DELAY = 10;
VAR
    msState: SET;
    scroll, x, y, scrollX, scrollY: INTEGER;
    pos1, pos2: T.tPoint;


    PROCEDURE EditBox (VAR eb: EB.tEditBox);
    VAR
        focus: BOOLEAN;
    BEGIN
        focus := EditBox_Focus(eb);
        EB.mouse(eb);
        IF focus # EditBox_Focus(eb) THEN
            SetFocus(eb, TRUE);
            repaint
        END
    END EditBox;


BEGIN
	CloseMenu;
    IF ~resized THEN
        msState := K.MouseState();
        IF ~(0 IN msState) OR (16 IN msState) THEN
        	leftButton := FALSE
        END;
        scroll := K.Scroll();
        IF scroll # 0 THEN
            T.scroll(text, 0, scroll*3);
            repaint
        END;
        IF leftButton THEN
            IF K.GetTickCount() - time >= DELAY THEN
            	T.getPos(text, pos1.Y, pos1.X);
                mouse(x, y);
                T.mouse(text, x, y);
                T.getPos(text, pos2.Y, pos2.X);
                IF (pos1.X # pos2.X) OR (pos1.Y # pos2.Y) THEN
                	repaint
                END
            END
        END;

		Scroll.mouse(hScroll);
		Scroll.mouse(vScroll);
		msState := K.MouseState();
        T.getScroll(text, scrollX, scrollY);
        IF (hScroll.value # scrollX) OR (vScroll.value # scrollY) THEN
			T.scroll(text, hScroll.value - scrollX, vScroll.value - scrollY);
        	repaint
        END;

        IF (8 IN msState) & ~(24 IN msState) THEN
            mouse(firstClickX, firstClickY);
            time := click(firstClickX, firstClickY)
        END;
        IF 9 IN msState THEN
            ShowMenu(context)
        END;
        IF 24 IN msState THEN
            mouse(x, y);
            IF U.between(-4, x - firstClickX, 4) & U.between(-4, y - firstClickY, 4) THEN
                IF U.between(0, x, canvas.width - 1) & U.between(0, y, canvas.height - 1) THEN
                    leftButton := FALSE;
                    T.selectWord(text);
                    repaint
                ELSIF Tabs.DblClicked(tabs, x + LEFT, y + TOP) THEN
                	leftButton := FALSE;
                	NewFile;
                	repaint
                END
            ELSE
                firstClickX := x;
                firstClickY := y;
                time := click(firstClickX, firstClickY)
            END
        END
    END;
    IF search & searchOpened THEN
	    CheckBox.mouse(BKW);
    	CheckBox.mouse(CS);
    	CheckBox.mouse(WH);
        EditBox(FindEdit);
        EditBox(ReplaceEdit);
        EditBox(GotoEdit);
        IF (CS.value # cs) OR (WH.value # whole) THEN
            cs := CS.value;
            whole := WH.value;
            notFound := ~T.search(text, searchText, cs, whole);
            repaint
        END
    END;
    resized := FALSE
END MouseEvent;


PROCEDURE Redraw (VAR resized: BOOLEAN; VAR width, height, cliWidth, cliHeight: INTEGER);
VAR
	onClose: BOOLEAN;
BEGIN
	onClose := (Menu.MenuItem = menuClose) OR (Menu.MenuItem = menuExit);
	IF ~onClose THEN
		ClickMenu
	END;
	K.GetSystemColors;
	IF ~K.RolledUp() THEN
		K.ClientSize(width, height);
		IF (width # cliWidth) OR (height # cliHeight) THEN
			cliWidth := width;
			cliHeight := height;
			resize;
			resized := TRUE
		END
	ELSE
		SetCaption(text.fileName)
	END;
	draw_window;
	IF SkinHeight # K.SkinHeight() THEN
		SkinHeight := K.SkinHeight();
		Redraw(resized, width, height, cliWidth, cliHeight)
	END;
	IF onClose THEN
		ClickMenu
	END
END Redraw;


PROCEDURE ScrollChange;
BEGIN
	T.scroll(text, hScroll.btn, vScroll.btn);
	IF menuActive THEN
		draw_window;
		menuActive := FALSE
	ELSE
		repaint
	END
END ScrollChange;


PROCEDURE main;
VAR
    fileName, filePath: RW.tFileName;
    width, height, cliWidth, cliHeight: INTEGER;
    resized: BOOLEAN;
    firstClickX, firstClickY, time, blink, i: INTEGER;
    key, scr: INTEGER;
BEGIN
	font := G.font1;
	header := "";
    K.GetSystemColors;
    switch := FALSE;
    closing := FALSE;
    textsCount := 0;
    curText := 0;
    Args.GetArg(0, AppPath);
    Ini.load(AppPath);
    leftButton := FALSE;
    resized := FALSE;
    K.ScreenSize(winWidth, winHeight);
    scrollWidth := winHeight DIV 35;
    winWidth := (winWidth*80) DIV 100 - (128 + 30);
    winHeight := winHeight - (128 + 30);
    winWidth := MAX(winWidth, minWinWidth);
    winHeight := MAX(winHeight, minWinHeight);
    cliWidth := winWidth;
    cliHeight := winHeight;

    LEFT := LEFT_PADDING;
    RIGHT := scrollWidth - 2;
    BOTTOM := SB.height() + scrollWidth - 1;
    SkinHeight := K.SkinHeight();
    canvas := G.CreateCanvas(winWidth - (LEFT + RIGHT + 11 + RIGHT_PADDING), winHeight - (TOP + BOTTOM + 5) - SkinHeight);
    tabs := Tabs.create();
    Tabs.setArea(tabs, LEFT, TOP - Tabs.tabHeight, canvas.width, Tabs.tabHeight);
    G.SetFont(canvas, font);
    T.init(resetTimer);
    T.setCanvas(canvas);

    Menu.init(resetTimer);
    context := CreateContextMenu();
    menuFile := CreateMenuFile();
    subCurLine := CreateMenuCurLine();
    subIndent := CreateMenuIndent();
    subCase := CreateMenuCase();
    menuEdit := CreateMenuEdit();
    subCurLine.parent := menuEdit;
    subIndent.parent := menuEdit;
    subCase.parent := menuEdit;
    subBookmark := CreateMenuBookmark();
    menuSearch := CreateMenuSearch();
    subBookmark.parent := menuSearch;
    subEOL := CreateMenuEOL();
    menuEncoding := CreateMenuEncoding();
    subEOL.parent := menuEncoding;
    menuView := CreateMenuView();
    menuLanguage := CreateMenuLanguage();
    menuProgram := CreateMenuProgram();
    menuTools := CreateMenuTools();

    mainMenu := Menu.CreateMain(mainMenuBtn);
    Menu.AddMainItem(mainMenu, "file", menuFile);
    Menu.AddMainItem(mainMenu, "edit", menuEdit);
    Menu.AddMainItem(mainMenu, "search", menuSearch);
    Menu.AddMainItem(mainMenu, "encoding", menuEncoding);
    Menu.AddMainItem(mainMenu, "view", menuView);
    Menu.AddMainItem(mainMenu, "language", menuLanguage);
    Menu.AddMainItem(mainMenu, "program", menuProgram);
    Menu.AddMainItem(mainMenu, "tools", menuTools);
    Shortcuts;

    Toolbar.create(toolbar, LEFT_PADDING + 5, toolbarTop);
    Toolbar.add(toolbar, btnNew,     2, "");
    Toolbar.add(toolbar, btnOpen,    0, "");
    Toolbar.add(toolbar, btnSave,    5, "");
    Toolbar.delimiter(toolbar);
    Toolbar.add(toolbar, btnSearch, 49, "");
    Toolbar.delimiter(toolbar);
    Toolbar.add(toolbar, btnUndo,   37, "");
    Toolbar.add(toolbar, btnRedo,   36, "");
    Toolbar.delimiter(toolbar);
    Toolbar.add(toolbar, btnUpper,  -1, "AB");
    Toolbar.add(toolbar, btnLower,  -1, "ab");
    Toolbar.delimiter(toolbar);
    Toolbar.add(toolbar, btnBuild,  54, "");
    Toolbar.add(toolbar, btnRun,    53, "");

    Ini.getSettings(buildScript, runScript, debugScript);

    filePath := "/sys";
    IF Args.argc = 1 THEN
        text := T.New();
        insert(0, text);
        T.SetPos(text, 0, 0)
    END;
	FOR i := 1 TO Args.argc - 1 DO
		Args.GetArg(i, fileName);
		IF open(fileName) THEN
			U.getPath(fileName, filePath)
		END
	END;
	IF textsCount = 0 THEN
		K.Exit
	END;
	SwitchTab(textsCount - 1);

    Scroll.create(FALSE, canvas.width + 1, scrollWidth, scrollWidth, scrollWidth*3 DIV 2, ScrollChange, hScroll);
    Scroll.create(TRUE, scrollWidth, canvas.height + 2, scrollWidth, scrollWidth*3 DIV 2, ScrollChange, vScroll);
    T.resize(canvas.width, canvas.height);
    confirm := FALSE;
    notFound := FALSE;
    menuFindClicked := FALSE;
    menuActive := FALSE;
    search := FALSE;
    searchOpened := FALSE;
    createSearchForm;
    new_searchText := "";
    searchText := "";
    cs := FALSE;
    whole := FALSE;
    replaced := 0;

	OD := OpenDlg.Create(draw_window, OpenDlg.topen, filePath, "");

    K.SetEventsMask({0, 1, 2, 5, 31});
    draw_window;
    blink := Ini.blink;
	IF blink <= 0 THEN
		blink := 0
	ELSIF blink < 30 THEN
		blink := 30
	END;
    timerEnabled := TRUE;
    CursorTime := K.GetTickCount();
    WHILE TRUE DO

    	CurrentTime := K.GetTickCount();
    	IF (CurrentTime - CursorTime > blink) & (blink > 0) & timerEnabled & ~K.RolledUp() THEN
    		CursorTime := CurrentTime;
    		T.cursor(text);
    		drawText
    	END;

        CASE K.EventTimeout(10) OF
        |0:
        |1:	Redraw(resized, width, height, cliWidth, cliHeight)
        |2:
        	key := K.GetKey();
        	IF ~K.RolledUp() THEN
        		KeyDown(key)
        	END
        |3: BtnClick
        |6:
        	IF ~K.RolledUp() THEN
        		MouseEvent(resized, firstClickX, firstClickY, time)
        	ELSE
        		scr := K.Scroll()
        	END
        END
    END
END main;


BEGIN
    main
END CEdit.