Subversion Repositories Kolibri OS

(*

    Copyright 2016-2023 Anton Krotov

    This file is part of fb2read.

    fb2read 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.

    fb2read 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 fb2read. If not, see .

*)

MODULE FB2READ;

IMPORT

    DOM, SU := SysUtils, S := Strings, W := Window, Settings, OpenDlg,

    G := Graph, SelEnc, Ini, File, box_lib, Font, SearchForm, Toolbar;

CONST

  CLOSE            =  1;

  BACK             = 16;

  FORWARD          = 17;

  CONTENTS         = 18;

  DESCR            = 19;

  SETTINGS         = 20;

  SEARCH           = 21;

  KEY_DOWN         = 80;

  KEY_UP           = 72;

  KEY_PG_DOWN      = 81;

  KEY_PG_UP        = 73;

  KEY_HOME         = 71;

  KEY_END          = 79;

  KEY_F2           = 60;

  KEY_F3           = 61;

  KEY_F4           = 62;

  KEY_F10          = 68;

  TOOLBAR_LEFT     = 5;

  TOOLBAR_TOP      = 6;

  BUTTON_HEIGHT    = 24;

  CANVAS_LEFT      = 1;

  CANVAS_TOP       = 2 * TOOLBAR_TOP + Toolbar.BtnSize;

  WINDOW_BEVEL     = 4;

  SCROLLBAR_WIDTH  = 20;

  STATUSBAR_HEIGHT = 18;

VAR

  Window     : W.tWindow;

  toolbar    : Toolbar.tToolbar;

  SkinHeight : INTEGER;

  Open       : OpenDlg.Dialog;

  FileName   : S.STRING;

  sb         : box_lib.scrollbar;

PROCEDURE ToolbarEnable;

BEGIN

	Toolbar.enable(toolbar, BACK,     DOM.BackEnabled());

	Toolbar.enable(toolbar, FORWARD,  DOM.FrwEnabled());

	Toolbar.enable(toolbar, CONTENTS, DOM.ContentsEnabled());

	Toolbar.enable(toolbar, DESCR,    DOM.DescrEnabled());

END ToolbarEnable;

PROCEDURE ToolBar;

BEGIN

	sb := box_lib.kolibri_scrollbar(sb, (G.Buffer.Width + CANVAS_LEFT) * 65536 + SCROLLBAR_WIDTH + 1,

		CANVAS_TOP * 65536 + G.Buffer.Height, SCROLLBAR_WIDTH, sb.max_area, sb.cur_area, sb.position, SU.lightColor, SU.btnColor, 0, 0);

	box_lib.scrollbar_v_draw(sb);

	ToolbarEnable;

	Toolbar.draw(toolbar);

END ToolBar;

PROCEDURE Resize;

VAR Width, Height: INTEGER;

BEGIN

  SU.GetWindowPos(Window.left, Window.top);

  SU.GetWindowSize(Width, Height);

  IF (Window.width # Width) OR (Window.height # Height) OR (SkinHeight # SU.SkinHeight()) THEN

    SU.MinMax(Width,  640, 65535);

    SU.MinMax(Height, 400, 65535);

    Window.dWidth  := Width - Window.width;

    Window.dHeight := Height - Window.height;

    Window.width   := Width;

    Window.height  := Height;

    SU.SetWindowSize(Width, Height);

    DOM.Resize(G.Buffer.Width + Window.dWidth, G.Buffer.Height + Window.dHeight + (SkinHeight - SU.SkinHeight()));

    SkinHeight := SU.SkinHeight()

  END

END Resize;

PROCEDURE DrawStatus;

BEGIN

  SU.DrawRect(0, Window.height - SkinHeight - WINDOW_BEVEL - STATUSBAR_HEIGHT + 1, Window.width - 2 * WINDOW_BEVEL - 1, STATUSBAR_HEIGHT, SU.winColor);

  IF DOM.urlstr # "" THEN

    SU.OutText(CANVAS_LEFT, Window.height - SkinHeight - WINDOW_BEVEL - STATUSBAR_HEIGHT + 2, DOM.urlstr,

      MIN(LENGTH(DOM.urlstr), (Window.width - 2 * WINDOW_BEVEL - 1 - CANVAS_LEFT * 2) DIV 8), SU.textColor)

  ELSIF DOM.found() THEN

    SU.OutText(CANVAS_LEFT,  Window.height - SkinHeight - WINDOW_BEVEL - STATUSBAR_HEIGHT + 2,

                "F2 - first | F3 - next | F4 - prev. | F10 - exit", 48, SU.textColor)

  END

END DrawStatus;

PROCEDURE DrawWindow;

BEGIN

  SU.GetSystemColors;

  SU.WindowRedrawStatus(1);

  IF Window.created THEN

    Resize

  ELSE

    Window.created := TRUE

  END;

  SU.DefineAndDrawWindow(Window.left, Window.top, Window.width, Window.height,

        SU.winColor, LSL(ORD({0, 1, 2}), 4) + 4 - ORD(DOM.loaded), Window.caption);

  SU.DrawRect(0, 0, Window.width - 2 * WINDOW_BEVEL - 1, CANVAS_TOP, SU.winColor);

  SU.DrawRect(0, Window.height - SkinHeight - WINDOW_BEVEL - STATUSBAR_HEIGHT + 1, Window.width - 2 * WINDOW_BEVEL - 1, STATUSBAR_HEIGHT, SU.winColor);

  SU.DrawRect(0, 0, CANVAS_LEFT, Window.height - SkinHeight - WINDOW_BEVEL, SU.winColor);

  SU.DrawRect(Window.width - 2 * WINDOW_BEVEL - CANVAS_LEFT - 1 - SCROLLBAR_WIDTH - 2, 0, CANVAS_LEFT + SCROLLBAR_WIDTH + 2, Window.height - SkinHeight - WINDOW_BEVEL, SU.winColor);

  IF DOM.loaded THEN

    ToolBar;

    DOM.Draw;

    DrawStatus

  END;

  SU.WindowRedrawStatus(2)

END DrawWindow;

PROCEDURE ConvMousePos(VAR X, Y: INTEGER);

BEGIN

  X := X - Window.left - WINDOW_BEVEL - 1;

  Y := Y - Window.top - SkinHeight

END ConvMousePos;

PROCEDURE DrawToolbar;

BEGIN

	ToolbarEnable;

	Toolbar.drawIcons(toolbar)

END DrawToolbar;

PROCEDURE ButtonClick;

BEGIN

  CASE SU.GetButtonCode() OF

  |0        :

  |CLOSE    : SearchForm.close(FALSE);

              Settings.Close;

              DOM.Close

  |BACK     : DOM.Back

  |FORWARD  : DOM.Forward

  |CONTENTS : DOM.Contents

  |DESCR    : DOM.Descr

  |SEARCH   : DOM.OpenSearch

  |SETTINGS : Settings.Open

  END;

  DOM.Draw;

  DrawStatus

END ButtonClick;

PROCEDURE KeyDown;

VAR

	key: INTEGER;

	shift, ctrl: BOOLEAN;

BEGIN

	SU.getKBState(shift, ctrl);

	key := SU.GetKey() DIV 65536;

	CASE key OF

	|KEY_DOWN    : DOM.Scroll(1)

	|KEY_UP      : DOM.Scroll(-1)

	|KEY_PG_DOWN : DOM.PageDown

	|KEY_PG_UP   : DOM.PageUp

	|KEY_HOME    : DOM.Home

	|KEY_END     : DOM.End

	|KEY_F2      : DOM.Find(0)

	|KEY_F3      : DOM.Find(1)

	|KEY_F4      : DOM.Find(-1)

	|KEY_F10     : DOM.CloseSearch

	|33          : IF ctrl THEN DOM.OpenSearch END (* ctrl-F *)

	ELSE

	END;

	DOM.Draw;

	DrawStatus

END KeyDown;

PROCEDURE CanvasIsClicked(X, Y: INTEGER): BOOLEAN;

  RETURN

    (CANVAS_LEFT <= X) & (X < CANVAS_LEFT + G.Buffer.Width)  &

    (CANVAS_TOP  <= Y) & (Y < CANVAS_TOP  + G.Buffer.Height)

END CanvasIsClicked;

PROCEDURE MouseEvent;

VAR

  mouse_status : SET;

  X, Y         : INTEGER;

  scroll       : INTEGER;

BEGIN

  SU.MousePos(X, Y);

  mouse_status := SU.MouseStatus();

  scroll := SU.MouseVScroll();

  IF SU.L_BUTTON IN mouse_status THEN

    ConvMousePos(X, Y);

    IF CanvasIsClicked(X, Y) THEN

      X := X - CANVAS_LEFT;

      Y := Y - CANVAS_TOP;

      DOM.Click(X, Y, TRUE)

    END

  ELSIF scroll # 0 THEN

    DOM.Scroll(scroll*2);

    DOM.Draw

  ELSE

    ConvMousePos(X, Y);

    IF CanvasIsClicked(X, Y) THEN

      X := X - CANVAS_LEFT;

      Y := Y - CANVAS_TOP;

      DOM.Click(X, Y, FALSE)

    END

  END

END MouseEvent;

PROCEDURE Empty;

END Empty;

PROCEDURE OpenFile;

BEGIN

  Open := OpenDlg.Create(Empty, 0, Ini.Default, Ini.Files);

  OpenDlg.Show(Open, 500, 400);

  WHILE Open.status = 2 DO

    SU.Pause(30)

  END;

  IF Open.status = 0 THEN

    SU.Halt

  END;

  COPY(Open.FilePath, FileName);

  OpenDlg.Destroy(Open)

END OpenFile;

PROCEDURE IsFB2(FileName: S.STRING): BOOLEAN;

VAR temp: S.STRING;

BEGIN

  temp := FileName;

  S.Reverse(temp);

  temp[4] := 0X;

  S.UCase(temp)

  RETURN temp = "2BF."

END IsFB2;

PROCEDURE main(title: ARRAY OF CHAR);

VAR WinW, X1, Y1, X2, Y2, scr_pos: INTEGER; Win2: W.tWindow; resize: BOOLEAN; FilePath: S.STRING; defpath: BOOLEAN;

BEGIN

  SkinHeight := SU.SkinHeight();

  sb := box_lib.kolibri_new_scrollbar(10 * 65536 + 200, 10 * 65536 + 30, 25, 15, 10, 0, 0, 0, 0, 0);

  DOM.SetScrollBar(sb);

  defpath := TRUE;

  SU.GetParam(FileName);

  IF FileName = "" THEN

    OpenFile

  END;

  IF FileName[0] = "!" THEN

    FileName[0] := "/";

    defpath := FALSE

  END;

  IF defpath THEN

    FilePath := FileName;

    S.GetPath(FilePath);

    Ini.SetDefaultPath(FilePath);

    DOM.SetColors;

    DOM.Set_b_pict(Ini.b_pict);

    Ini.Save(DOM.Settings.Colors, DOM.Settings.b_pict)

  END;

  IF ~IsFB2(FileName) THEN

    SelEnc.Show(FileName)

  END;

  SU.SetEventsMask({0, 1, 2, 5, 31});

  SU.GetScreenArea(X1, Y1, X2, Y2);

  WinW := (X2 - X1) DIV 2;

  W.init(Window, WinW DIV 2, Y1, WinW, Y2 - Y1, title);

  Settings.Default;

  DOM.GetWinSize(FileName, Window.width, Window.height);

  Win2 := Window;

  resize := FALSE;

  IF Win2.width > X2 - X1 THEN

    Win2.width := X2 - X1;

    resize := TRUE

  END;

  IF Win2.height > Y2 - Y1 THEN

    Win2.height := Y2 - Y1;

    resize := TRUE

  END;

  DOM.Init(CANVAS_LEFT, CANVAS_TOP,

        Window.width - 2 * CANVAS_LEFT - 2 * WINDOW_BEVEL - 1 - SCROLLBAR_WIDTH - 2,

        Window.height - SkinHeight - CANVAS_TOP - WINDOW_BEVEL - STATUSBAR_HEIGHT + 1);

  DOM.SetColors;

  DOM.Set_b_pict(Ini.b_pict);

  Window := Win2;

  G.InitSize(Window.width - 2 * CANVAS_LEFT - 2 * WINDOW_BEVEL - 1 - SCROLLBAR_WIDTH, Window.height - SkinHeight - CANVAS_TOP - WINDOW_BEVEL + 1 - STATUSBAR_HEIGHT);

  S.Append(Window.caption, " - ");

  S.Append(Window.caption, FileName);

	Toolbar.create(toolbar, TOOLBAR_LEFT, TOOLBAR_TOP);

    Toolbar.add(toolbar, BACK,      30, "");

    Toolbar.add(toolbar, FORWARD,   31, "");

    Toolbar.delimiter(toolbar);

    Toolbar.add(toolbar, CONTENTS,   3, "");

    Toolbar.delimiter(toolbar);

    Toolbar.add(toolbar, SEARCH,    49, "");

    Toolbar.delimiter(toolbar);

    Toolbar.add(toolbar, DESCR,     66, "");

    Toolbar.delimiter(toolbar);

    Toolbar.add(toolbar, SETTINGS,  60, "");

  DOM.Open(FileName, DrawWindow, DrawStatus, DrawToolbar);

  IF resize THEN

    DOM.Resize(Window.width - 2 * CANVAS_LEFT - 2 * WINDOW_BEVEL - 1 - SCROLLBAR_WIDTH, Window.height - SkinHeight - CANVAS_TOP - WINDOW_BEVEL + 1 - STATUSBAR_HEIGHT)

  END;

  DrawWindow;

  scr_pos := sb.position;

  WHILE TRUE DO

    CASE SU.WaitForEvent() OF

    |1 : DrawWindow

    |2 : KeyDown

    |3 : ButtonClick

    |6 : box_lib.scrollbar_v_mouse(sb);

         IF sb.position # scr_pos THEN

           DOM.ScrollBar;

           DOM.Draw;

           scr_pos := sb.position;

         END;

         MouseEvent

    END

  END

END main;

BEGIN

  main("FB2 Reader v0.97a")

END FB2READ.