jvqcontrolbar.pas

East make Tray Icon in delphi

{******************************************************************************}
{* WARNING:  JEDI VCL To CLX Converter generated unit.                        *}
{*           Manual modifications will be lost on next release.               *}
{******************************************************************************}

{-----------------------------------------------------------------------------
The contents of this file are subject to the Mozilla Public License
Version 1.1 (the "License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.mozilla.org/MPL/MPL-1.1.html

Software distributed under the License is distributed on an "AS IS" basis,
WITHOUT WARRANTY OF ANY KIND, either expressed or implied. See the License for
the specific language governing rights and limitations under the License.

The Original Code is: JvControlBar.PAS, released on 2001-02-28.

The Initial Developer of the Original Code is S閎astien Buysse [sbuysse att buypin dott com]
Portions created by S閎astien Buysse are Copyright (C) 2001 S閎astien Buysse.
All Rights Reserved.

Contributor(s): Michael Beck [mbeck att bigfoot dott com].

You may retrieve the latest version of this file at the Project JEDI's JVCL home page,
located at http://jvcl.sourceforge.net

Known Issues:
-----------------------------------------------------------------------------}
// $Id: JvQControlBar.pas,v 1.16 2005/02/06 14:06:03 asnepvangers Exp $

unit JvQControlBar;

{$I jvcl.inc}

interface

uses
  QWindows, Classes, QGraphics, QControls, QMenus,
  JvQExControls, JvQExExtCtrls, JvQAppStorage;

type
  TPopupNames = (pnHint, pnName);

  TJvControlBar = class(TJvExControlBar, IJvDenySubClassing,
    IJvAppStorageHandler, IJvAppStoragePublishedProps)
  private
    FPopupControl: Boolean;
    FPopup: TPopupMenu;
    FPopupNames: TPopupNames;
    FList: TList;
  protected
    procedure ReadFromAppStorage(AppStorage: TJvCustomAppStorage; const BasePath: string); virtual;
    procedure WriteToAppStorage(AppStorage: TJvCustomAppStorage; const BasePath: string); virtual;
    function DoPaintBackground(Canvas: TCanvas; Param: Integer): Boolean; override; 
    procedure MouseUp(Button: TMouseButton; Shift: TShiftState; X, Y: Integer); override;
    procedure PopupMenuClick(Sender: TObject);
    procedure Loaded; override;
  public
    constructor Create(AOwner: TComponent); override;
    destructor Destroy; override;
    procedure LoadPositions(const Value: string);
    function SavePositions: string;
  published
    property HintColor; 
    property PopupControl: Boolean read FPopupControl write FPopupControl default True;
    property PopupNames: TPopupNames read FPopupNames write FPopupNames default pnHint;
    property OnMouseEnter;
    property OnMouseLeave;
    property OnParentColorChange;
  end;

implementation

uses
  {$IFDEF UNITVERSIONING}
  JclUnitVersioning,
  {$ENDIF UNITVERSIONING}
  SysUtils,
  JvQThemes;

const
  cFalse = 'false';
  cTrue = 'true';
  cUndocked = 'undocked';

constructor TJvControlBar.Create(AOwner: TComponent);
begin
  inherited Create(AOwner);
  FList := TList.Create;
  FPopupControl := True;
  FPopupNames := pnHint;
  ControlStyle := ControlStyle + [csAcceptsControls]; 
end;

destructor TJvControlBar.Destroy;
begin
  FList.Free;
  FPopup.Free;
  inherited Destroy;
end;

function TJvControlBar.DoPaintBackground(Canvas: TCanvas; Param: Integer): Boolean;
begin
  if Picture.Graphic <> nil then
    Result := inherited DoPaintBackground(Canvas, Param)
  else
  begin
    DrawThemedBackground(Self, Canvas.Handle, ClientRect, Parent.Brush.Handle);
    Result := True;
  end;
end;

procedure TJvControlBar.MouseUp(Button: TMouseButton; Shift: TShiftState;
  X, Y: Integer);
var
  I: Integer;

  procedure DoAddControl(const AControl: TControl; const Index: Integer);
  var
    It: TMenuItem;
  begin
    It := TMenuItem.Create(FPopup);
    if PopupNames = pnHint then
      It.Caption := AControl.Hint
    else
      It.Caption := AControl.Name; 
    It.Tag := Index;
    It.OnClick := PopupMenuClick;
    It.Checked := AControl.Visible;
    FPopup.Items.Add(It);
  end;

begin
  inherited MouseUp(Button, Shift, X, Y);
  if PopupControl and (Button = mbRight) then
  begin
    if FPopup <> nil then
      FPopup.Items.Clear
    else
      FPopup := TPopupMenu.Create(Self);
    for I := 0 to FList.Count - 1 do
      DoAddControl(TControl(FList[I]), I);
    with ClientToScreen(Point(X, Y)) do
      FPopup.Popup(X, Y);
  end;
end;

procedure TJvControlBar.PopupMenuClick(Sender: TObject);
begin
  with Sender as TMenuItem do
  begin 
    if (Tag >= 0) and (Tag < FList.Count) then
      TControl(FList[Tag]).Visible := Checked;
  end;
end;

procedure TJvControlBar.LoadPositions(const Value: string);
var
  St, St2: string;
  I, J: Integer;
  LLeft, LTop: Integer; 
begin
  St := Value;
  J := 0;
  while (Length(St) > 1) and (J < FList.Count) do
  begin
    I := Pos(';', St);
    if I = 0 then
    begin
      St2 := St;
      St := '';
    end
    else
    begin
      St2 := Copy(St, 1, I - 1);
      St := Copy(St, I + 1, Length(St));
    end;

    I := Pos(',', St2);
    if I <> 0 then
    begin
      TControl(FList[J]).Visible := Pos(cTrue, St2) = 1;
      St2 := Copy(St2, I + 1, Length(St2));
      I := Pos(',', St2);
      if I <> 0 then
      begin
        LLeft := StrToIntDef(Copy(St2, 1, I - 1), TControl(FList[J]).Left); 
        St2 := Copy(St2, I + 1, Length(St2));
        I := Pos(',', St2);
        if I <> 0 then
        begin 
          St2 := Copy(St2, 1, I - 1);
        end; 
        LTop := StrToIntDef(St2, TControl(FList[J]).Top);

        if ControlAtPos(Point(LLeft, TControl(FList[J]).Top), True) <> nil then
        begin
          TControl(FList[J]).Left := LLeft;
          TControl(FList[J]).Top := LTop;
        end
        else
        begin
          TControl(FList[J]).Top := LTop;
          TControl(FList[J]).Left := LLeft;
        end;
      end;
    end;
    Inc(J);
  end;
end;

function TJvControlBar.SavePositions: string;
var
  I: Integer;
begin
  Result := '';
  for I := 0 to FList.Count - 1 do
  begin
    if TControl(FList[I]).Visible then
      Result := Result + cTrue + ','
    else
      Result := Result + cFalse + ',';
    Result := Result + IntToStr(TControl(FList[I]).Left) + ',' +
      IntToStr(TControl(FList[I]).Top);
    if TControl(FList[I]).Parent <> Self then
      Result := Result + ',' + cUndocked;
    Result := Result + ';';
  end;
end;

procedure TJvControlBar.Loaded;
var
  I: Integer;
begin
  inherited Loaded;
  for I := 0 to ControlCount - 1 do
    FList.Add(Controls[I]);
end;



procedure TJvControlBar.ReadFromAppStorage(AppStorage: TJvCustomAppStorage; const BasePath: string);
begin
  LoadPositions(AppStorage.ReadString(BasePath));
end;

procedure TJvControlBar.WriteToAppStorage(AppStorage: TJvCustomAppStorage; const BasePath: string);
begin
  AppStorage.WriteString(BasePath, SavePositions);
end;

{$IFDEF UNITVERSIONING}
const
  UnitVersioning: TUnitVersionInfo = (
    RCSfile: '$RCSfile: JvQControlBar.pas,v $';
    Revision: '$Revision: 1.16 $';
    Date: '$Date: 2005/02/06 14:06:03 $';
    LogPath: 'JVCL\run'
  );

initialization
  RegisterUnitVersion(HInstance, UnitVersioning);

finalization
  UnregisterUnitVersion(HInstance);
{$ENDIF UNITVERSIONING}

end.