{
 ***************************************************************************
 *                                                                         *
 *   This source 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 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This code 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.                              *
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 *   A copy of the GNU General Public License is available on the World    *
 *   Wide Web at <http://www.gnu.org/copyleft/gpl.html>. You can also      *
 *   obtain it by writing to the Free Software Foundation,                 *
 *   Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1335, USA.   *
 *                                                                         *
 ***************************************************************************

  Author: Ondrej Pokorny

  Abstract:
    A simple dialog to select code creation options.
}
unit CodeCreationDlg;

{$mode objfpc}{$H+}

interface

uses
  Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs, StdCtrls,
  ButtonPanel, SourceChanger, LazarusIDEStrConsts, EnvironmentOpts, CodeCompletionTool,
  ExtCtrls;

type
  //this dialog can easily be reused.
  //for now it is used only in the method event assignment code creation

  TCodeCreationDialog = class(TForm)
    ButtonPanel: TButtonPanel;
    NewIdentLabel: TLabel;
    SectionRadioGroup: TRadioGroup;
    LocationRadioGroup: TRadioGroup;
    procedure FormKeyPress(Sender: TObject; var Key: char);
    procedure LocationRadioGroupClick(Sender: TObject);
    procedure SectionRadioGroupDblClick(Sender: TObject);
    procedure SectionRadioGroupKeyPress(Sender: TObject; var Key: char);
  protected
    procedure DoCreate; override;
    procedure DoShow; override;
  public
    procedure Init(const ANewIdent: string; const AIsMethod: Boolean;
      const Options: TCodeCreationDlgResult);
    procedure Final(const AIsMethod: Boolean; var Options: TCodeCreationDlgResult);
  end;

function ShowCodeCreationDialog(const ANewIdent: string; const AIsMethod: Boolean;
    out Options: TCodeCreationDlgResult): Boolean;

implementation

{$R *.lfm}

function ShowCodeCreationDialog(const ANewIdent: string; const AIsMethod: Boolean;
  out Options: TCodeCreationDlgResult): Boolean;
var
  Dlg: TCodeCreationDialog;
begin
  if AIsMethod then
    Options := EnvironmentOptions.LastEventMethodCCResult
  else
    Options := EnvironmentOptions.LastVariableCCResult;

  Dlg := TCodeCreationDialog.Create(Application);
  try
    Dlg.Init(ANewIdent, AIsMethod, Options);

    Result := Dlg.ShowModal = mrOK;

    if Result then
      Dlg.Final(AIsMethod, Options);
  finally
    Dlg.Free;
  end;
end;

{ TCodeCreationDialog }

procedure TCodeCreationDialog.DoCreate;
var
  S: TInsertClassSection;
begin
  inherited DoCreate;

  KeyPreview := True;

  Hint := lisYouCanSelectItemsBySimplyPressingUnderscoredLetter;

  SectionRadioGroup.Items.Clear;
  for S := Low(TInsertClassSection) to High(TInsertClassSection) do
    SectionRadioGroup.Items.Add(InsertClassSectionAmpNames[S]);

  LocationRadioGroup.Items.Clear;
  LocationRadioGroup.Items.Add(lisLocal);
  LocationRadioGroup.Items.Add(lisClass);
end;

procedure TCodeCreationDialog.DoShow;
begin
  inherited DoShow;

  LocationRadioGroupClick(nil);
end;

procedure TCodeCreationDialog.Final(const AIsMethod: Boolean;
  var Options: TCodeCreationDlgResult);
begin
  Options.ClassSection := TInsertClassSection(SectionRadioGroup.ItemIndex);
  Options.Location := TCreateCodeLocation(LocationRadioGroup.ItemIndex);
  if AIsMethod then
    EnvironmentOptions.LastEventMethodCCResult := Options
  else
    EnvironmentOptions.LastVariableCCResult := Options;
end;

procedure TCodeCreationDialog.FormKeyPress(Sender: TObject;
  var Key: char);
begin
  case Key of
    #27: ModalResult := mrCancel;
    'p':
      if SectionRadioGroup.Enabled then
      begin
        SectionRadioGroup.ItemIndex := Ord(icsPrivate);
        ModalResult := mrOK;
      end;
    'r':
      if SectionRadioGroup.Enabled then
      begin
        SectionRadioGroup.ItemIndex := Ord(icsProtected);
        ModalResult := mrOK;
      end;
    'u':
      if SectionRadioGroup.Enabled then
      begin
        SectionRadioGroup.ItemIndex := Ord(icsPublic);
        ModalResult := mrOK;
      end;
    's':
      if SectionRadioGroup.Enabled then
      begin
        SectionRadioGroup.ItemIndex := Ord(icsPublished);
        ModalResult := mrOK;
      end;
    'l':
      if LocationRadioGroup.Enabled then
      begin
        LocationRadioGroup.ItemIndex := Ord(cclLocal);
        ModalResult := mrOK;
      end;
    'c':
      if LocationRadioGroup.Enabled then
      begin
        LocationRadioGroup.ItemIndex := Ord(cclClass);
        // do not set ModalResult, the user has to set section
      end;
  end;
end;

procedure TCodeCreationDialog.Init(const ANewIdent: string;
  const AIsMethod: Boolean; const Options: TCodeCreationDlgResult);
begin
  Caption := lisCodeCreationDialogCaption;
  LocationRadioGroup.Caption := lisCodeCreationDialogLocation;
  SectionRadioGroup.Caption := lisCodeCreationDialogClassSection;

  if ANewIdent<>'' then
    NewIdentLabel.Caption := ANewIdent
  else
    NewIdentLabel.Visible := False;

  if Ord(Options.ClassSection) < SectionRadioGroup.Items.Count then
    SectionRadioGroup.ItemIndex := Ord(Options.ClassSection)
  else
    SectionRadioGroup.ItemIndex := 0;

  if Ord(Options.Location) < LocationRadioGroup.Items.Count then
    LocationRadioGroup.ItemIndex := Ord(Options.Location)
  else
    LocationRadioGroup.ItemIndex := 0;

  if AIsMethod then
  begin
    LocationRadioGroup.ItemIndex := Ord(cclClass);
    LocationRadioGroup.Enabled := False;
  end;
end;

procedure TCodeCreationDialog.LocationRadioGroupClick(Sender: TObject);
begin
  SectionRadioGroup.Enabled := LocationRadioGroup.ItemIndex = Ord(cclClass);
end;

procedure TCodeCreationDialog.SectionRadioGroupDblClick(Sender: TObject);
begin
  ModalResult := mrOK;
end;

procedure TCodeCreationDialog.SectionRadioGroupKeyPress(
  Sender: TObject; var Key: char);
begin
  if Key = #13 then
    ModalResult := mrOK;
end;

initialization
  ShowCodeCreationDlg := @ShowCodeCreationDialog;

end.