{
    $Id$
    This file is part of the Free Pascal Integrated Development Environment
    Copyright (c) 1998 by Berczi Gabor

    Help menu entries

    See the file COPYING.FPC, included in this distribution,
    for details about the copyright.

    This program 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.

 **********************************************************************}

procedure TIDEApp.HelpContents;
begin
  HelpTopic('Help_Contents'{0,hcContents,false});
end;

procedure TIDEApp.HelpHelpIndex;
begin
  HelpIndex('');
end;

procedure TIDEApp.HelpTopicSearch;
begin
end;

procedure TIDEApp.HelpPrevTopic;
begin
  if HelpWindow=nil then HelpContents else
  with HelpWindow^ do
  if GetState(sfVisible) then Message(HelpWindow^.HelpView,evCommand,cmPrevTopic,nil)
     else begin HelpWindow^.Show; HelpWindow^.MakeFirst; end;
end;

procedure TIDEApp.HelpUsingHelp;
begin
  Help(0,hcUsingHelp,false);
end;

type
    PHelpFilesDialog = ^THelpFilesDialog;
    THelpFilesDialog = object(TCenterDialog)
      constructor Init;
      procedure   HandleEvent(var Event: TEvent); virtual;
      destructor  Done; virtual;
    private
      LB: PListBox;
      C : PUnsortedStringCollection;
    end;

constructor THelpFilesDialog.Init;
var R,R2: TRect;
    SB: PScrollBar;
    I: integer;
begin
  R.Assign(0,0,50,15);
  inherited Init(R, 'Install Help Files');

  New(C, Init(20,10));

  GetExtent(R); R.Grow(-2,-2); Inc(R.A.Y); R.B.X:=37;
  R2.Copy(R); R2.Move(1,0); R2.A.X:=R2.B.X-1;
  New(SB, Init(R2)); Insert(SB);
  New(LB, Init(R, 1, SB));

  for I:=0 to HelpFiles^.Count-1 do
    begin
      C^.Insert(NewStr(HelpFiles^.At(I)^));
    end;

  LB^.NewList(C);
  Insert(LB);
  R2.Copy(R); Dec(R2.A.Y); R2.B.Y:=R2.A.Y+1;
  Insert(New(PLabel, Init(R2, '~H~elp files', LB)));

  GetExtent(R); R.Grow(-2,-2); Inc(R.A.Y); R.A.X:=38; R.B.Y:=R.A.Y+2;
  Insert(New(PButton, Init(R, 'O~K~', cmOK, bfDefault)));
  R.Move(0,2);
  Insert(New(PButton, Init(R, '~N~ew', cmAddItem, bfNormal)));
  R.Move(0,2);
  Insert(New(PButton, Init(R, '~D~elete', cmDeleteItem, bfNormal)));
  R.Move(0,2);
  Insert(New(PButton, Init(R, 'Cancel', cmCancel, bfNormal)));

  LB^.Select;
end;

procedure THelpFilesDialog.HandleEvent(var Event: TEvent);
var I: integer;
    D: PFileDialog;
    FileName: string;
begin
  case Event.What of
    evKeyDown :
      case Event.KeyCode of
        kbIns :
          begin
            Message(@Self,evCommand,cmAddItem,nil);
            ClearEvent(Event);
          end;
        kbDel :
          begin
            Message(@Self,evCommand,cmDeleteItem,nil);
            ClearEvent(Event);
          end;
      end;
    evCommand :
      case Event.Command of
        cmAddItem :
          begin
            New(D, Init('*.tph','Install a help file','*.tph',fdOpenButton,0));
            if Desktop^.ExecView(D)<>cmCancel then
            begin
              D^.GetFileName(FileName);
              LB^.List^.Insert(NewStr(FileName));
              LB^.SetRange(LB^.List^.Count);
              ReDraw;
            end;
            Dispose(D, Done);
            ClearEvent(Event);
          end;
        cmDeleteItem :
          if LB^.Range>0 then
          begin
            LB^.List^.AtFree(LB^.Focused);
            LB^.SetRange(LB^.List^.Count);
            ReDraw;
            ClearEvent(Event);
          end;
        cmOK :
          begin
            HelpFiles^.FreeAll;
            for I:=0 to LB^.List^.Count-1 do
              HelpFiles^.Insert(NewStr(C^.At(I)^));
          end;
      end;
  end;
  inherited HandleEvent(Event);
end;

destructor THelpFilesDialog.Done;
begin
  if C<>nil then begin C^.DeleteAll; Dispose(C, Done); end;
  inherited Done;
end;

procedure TIDEApp.HelpFiles;
begin
  if Desktop^.ExecView(New(PHelpFilesDialog, Init))=cmOK then
  begin
    DoneHelpSystem;
    InitHelpSystem;
  end;
end;

procedure TIDEApp.About;
var R,R2: TRect;
    D: PCenterDialog;
    OSStr: string;
begin
  OSStr:='';
{$ifdef go32v2}
  OSStr:='Dos';
{$endif}
{$ifdef tp}
  OSStr:='Dos';
{$endif}
{$ifdef linux}
  OSStr:='Linux';
{$endif}
{$ifdef win32}
  OSStr:='Win32';
{$endif}
{$ifdef os2}
  OSStr:='OS/2';
{$endif}
  R.Assign(0,0,46,12);
  New(D, Init(R, 'About'));
  with D^ do
  begin
    GetExtent(R); R.Grow(-3,-2);
    R2.Copy(R); R2.B.Y:=R2.A.Y+1;
    Insert(New(PStaticText, Init(R2, ^C'FreePascal IDE for '+OSStr+' Version '+VersionStr)));
    R2.Move(0,1);
    Insert(New(PStaticText, Init(R2, ^C'(Compiler Version '+Version_String+')')));
    R2.Move(0,2);
    Insert(New(PStaticText, Init(R2, ^C'Copyright (C) 1998-99 by')));
    R2.Move(0,2);
    Insert(New(PStaticText, Init(R2, ^C'B‚rczi G bor')));
    R2.Move(0,1);
    Insert(New(PStaticText, Init(R2, ^C'and')));
    R2.Move(0,1);
    Insert(New(PStaticText, Init(R2, ^C'Peter Vreman')));
  end;
  InsertOK(D);
  Desktop^.ExecView(D);
  Dispose(D, Done);
end;

{
  $Log$
  Revision 1.5  1999-02-22 02:15:16  peter
    + default extension for save in the editor
    + Separate Text to Find for the grep dialog
    * fixed redir crash with tp7

  Revision 1.4  1999/01/21 11:54:18  peter
    + tools menu
    + speedsearch in symbolbrowser
    * working run command

  Revision 1.3  1999/01/12 14:29:34  peter
    + Implemented still missing 'switch' entries in Options menu
    + Pressing Ctrl-B sets ASCII mode in editor, after which keypresses (even
      ones with ASCII < 32 ; entered with Alt+<###>) are interpreted always as
      ASCII chars and inserted directly in the text.
    + Added symbol browser
    * splitted fp.pas to fpide.pas

  Revision 1.2  1998/12/28 15:47:48  peter
    + Added user screen support, display & window
    + Implemented Editor,Mouse Options dialog
    + Added location of .INI and .CFG file
    + Option (INI) file managment implemented (see bottom of Options Menu)
    + Switches updated
    + Run program

  Revision 1.2  1998/12/22 10:39:47  peter
    + options are now written/read
    + find and replace routines

}