jvcllaz: New component TJvAppAnimatedIcon

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@6739 8e941d3f-bd1b-0410-a28a-d453659cc2b4
2018-11-25 22:29:04 +00:00
parent 9771f149db
commit 99295fcab0
9 changed files with 3995 additions and 3861 deletions
--- a/components/jvcllaz/run/JvAppFrm/JvAppAnimatedIcon.pas
+++ b/components/jvcllaz/run/JvAppFrm/JvAppAnimatedIcon.pas
@@ -0,0 +1,121 @@
+{-----------------------------------------------------------------------------
+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: JvAppAnimatedIcon.PAS, released on 2001-02-28.
+
+The Initial Developer of the Original Code is S�bastien Buysse [sbuysse att buypin dott com]
+Portions created by S�bastien Buysse are Copyright (C) 2001 S�bastien 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.delphi-jedi.org
+
+Known Issues:
+-----------------------------------------------------------------------------}
+// $Id$
+
+unit JvAppAnimatedIcon;
+
+{$mode objfpc}{$H+}
+
+interface
+
+uses
+  Classes, Controls, ExtCtrls, Graphics, ImgList;
+
+type
+  TJvAppAnimatedIcon = class(TComponent)
+  private
+    FActive: Boolean;
+    FDelay: Cardinal;
+    FIcons: TImageList;
+    FTimer: TTimer;
+    FNumber: Integer;
+    procedure SetActive(const Value: Boolean);
+    procedure SetDelay(const Value: Cardinal);
+    procedure SetIcons(const Value: TImageList);
+    procedure Animate(Sender: TObject);
+  protected
+    procedure Notification(AComponent: TComponent; Operation: TOperation); override;
+  public
+    constructor Create(AOwner: TComponent); override;
+    destructor Destroy; override;
+  published
+    property Active: Boolean read FActive write SetActive default False;
+    property Delay: Cardinal read FDelay write SetDelay default 100;
+    property Icons: TImageList read FIcons write SetIcons;
+  end;
+
+
+implementation
+
+uses
+  Forms, JvJVCLUtils;
+
+constructor TJvAppAnimatedIcon.Create(AOwner: TComponent);
+begin
+  inherited Create(AOwner);
+  FActive := False;
+  FDelay := 100;
+  FNumber := 0;
+  FTimer := TTimer.Create(Self);
+  FTimer.OnTimer := @Animate;
+  FTimer.Interval := FDelay;
+  FTimer.Enabled := FActive;
+end;
+
+destructor TJvAppAnimatedIcon.Destroy;
+begin
+  FTimer.Free;
+  inherited Destroy;
+end;
+
+procedure TJvAppAnimatedIcon.Notification(AComponent: TComponent;
+  Operation: TOperation);
+begin
+  inherited Notification(AComponent, Operation);
+  
+  if Operation = opRemove then
+  begin
+    if AComponent = FIcons then
+      SetIcons(nil);
+  end;
+end;
+
+procedure TJvAppAnimatedIcon.Animate(Sender: TObject);
+
+begin
+  if (Icons <> nil) and (Icons.Count <> 0) then
+  begin
+    FNumber := (FNumber + 1) mod Icons.Count;
+    Icons.GetIcon(FNumber, Application.Icon);
+  end;
+end;
+
+procedure TJvAppAnimatedIcon.SetActive(const Value: Boolean);
+begin
+  FActive := Value;
+  FTimer.Enabled := FActive;
+end;
+
+procedure TJvAppAnimatedIcon.SetDelay(const Value: Cardinal);
+begin
+  FDelay := Value;
+  FTimer.Interval := FDelay;
+end;
+
+procedure TJvAppAnimatedIcon.SetIcons(const Value: TImageList);
+begin
+  ReplaceComponentReference(Self, Value, TComponent(FIcons));
+end;
+
+end.