Index: gifanim.pas
===================================================================
--- gifanim.pas	(revision none)
+++ gifanim.pas	(working copy)
@@ -26,7 +26,7 @@
 
 uses
   Classes, LCLProc, Lresources, SysUtils, Controls, Graphics, ExtCtrls,
-  IntfGraphics, FPimage, Contnrs, GraphType, dialogs;
+  IntfGraphics, FPimage, Contnrs, GraphType, dialogs, types;
 
 const
 
@@ -193,7 +193,7 @@
     procedure DoAutoSize; override;
     procedure DoStartAnim;
     procedure DoStopAnim;
-    class function GetControlClassDefaultSize: TPoint; override;
+    class function GetControlClassDefaultSize: TSize; override;
     procedure GifChanged;
     procedure LoadFromFile(const Filename: string); virtual;
     procedure Paint; override;
@@ -203,6 +203,8 @@
     { Public declarations }
     constructor Create(AOwner: TComponent); override;
     destructor Destroy; override;
+    procedure NextFrame;
+    procedure PriorFrame;
     property Empty: boolean Read FEmpty;
     property GifBitmaps: TGifList Read FGifBitmaps;
     property GifIndex: integer Read FCurrentImage;
@@ -237,28 +239,9 @@
 
 implementation
 
-uses LazIDEIntf, propedits;
-Type
-  TGifFileNamePropertyEditor=class(TFileNamePropertyEditor)
-  protected
-    function GetFilter: String; override;
-    function GetInitialDirectory: string; override;
-  end;
-function TGifFileNamePropertyEditor.GetFilter: String;
-begin
-  Result := 'GIF|*.gif';
-end;
-
-function TGifFileNamePropertyEditor.GetInitialDirectory: string;
-begin
-  Result:= ExtractFilePath(LazarusIDE.ActiveProject.ProjectInfoFile);
-end;
-
 procedure Register;
 begin
   RegisterComponents('Wile64', [TGifAnim]);
-  RegisterPropertyEditor(TypeInfo(String),
-    TGifAnim, 'FileName', TGifFileNamePropertyEditor);
 end;
 
 { TGifAnim }
@@ -268,7 +251,7 @@
   inherited Create(AOwner);
   ControlStyle := [csCaptureMouse, csClickEvents, csDoubleClicks];
   AutoSize     := True;
-  SetInitialBounds(0, 0, GetControlClassDefaultSize.X, GetControlClassDefaultSize.Y);
+  SetInitialBounds(0, 0, GetControlClassDefaultSize.CX, GetControlClassDefaultSize.CY);
   FEmpty      := True;
   FCurrentImage := 0;
   CurrentView := TBitmap.Create;
@@ -295,6 +278,59 @@
   CurrentView.Free;
 end;
 
+procedure TGifAnim.NextFrame;
+begin
+  if (not FEmpty) and Visible and (not FAnimate) then
+  begin
+    if FCurrentImage >= GifBitmaps.Count - 1 then
+      FCurrentImage := 0
+    else
+      Inc(FCurrentImage);
+    if Assigned(FOnFrameChanged) then
+      FOnFrameChanged(Self);
+    Repaint;
+  end;
+end;
+
+procedure TGifAnim.PriorFrame;
+var
+  DesiredImage: Integer;
+begin
+  if (not FEmpty) and Visible and (not FAnimate) then
+  begin
+    if FCurrentImage = 0 then
+      DesiredImage:= GifBitmaps.Count - 1
+    else
+      DesiredImage:= FCurrentImage - 1;
+    // For proper display repaint image from first frame to desired frame
+    FCurrentImage:= 0;
+    while FCurrentImage < DesiredImage do
+    begin
+      with GifBitmaps.Items[FCurrentImage] do
+        begin
+          BufferImg.Canvas.Brush.Color := (Self.Color);
+          if FCurrentImage = 0 then
+            BufferImg.Canvas.FillRect(Rect(0, 0, Width, Height));
+          if Delay <> 0 then
+            FWait.Interval := Delay * 10;
+          BufferImg.Canvas.Draw(PosX, PosY, Bitmap);
+          case Method of
+            //0 : Not specified...
+            //1 : No change Background
+            2: BufferImg.Canvas.FillRect(
+                Rect(PosX, PosY, Bitmap.Width + PosX, Bitmap.Height + PosY));
+
+            3: BufferImg.Canvas.FillRect(Rect(0, 0, Width, Height));
+          end;
+        end;
+      Inc(FCurrentImage);
+    end;
+    if Assigned(FOnFrameChanged) then
+      FOnFrameChanged(Self);
+    Repaint;
+  end;
+end;
+
 function TGifAnim.LoadFromLazarusResource(const ResName: String): boolean;
 var
   GifLoader: TGifLoader;
@@ -340,12 +376,13 @@
 begin
   if (not Empty) and Visible then
   begin
-    if FCurrentImage > GifBitmaps.Count - 1 then
-      FCurrentImage := 0;
-    if assigned(FOnFrameChanged) then
-      FOnFrameChanged(self);
-    Paint;
-    Inc(FCurrentImage);
+    if FCurrentImage >= GifBitmaps.Count - 1 then
+      FCurrentImage := 0
+    else
+      Inc(FCurrentImage);
+    if Assigned(FOnFrameChanged) then
+      FOnFrameChanged(Self);
+    Repaint;
   end;
 end;
 
@@ -365,27 +402,12 @@
 end;
 
 procedure TGifAnim.SetFileName(const AValue: string);
-var
-  fn: string;
 begin
-
-  if (FFileName = AValue) then
-    exit;
+  if (FFileName = AValue) then Exit;
   FFileName := AValue;
   ResetImage;
-  if (FFileName = '') then exit;
-  if (csDesigning in ComponentState) then
-  begin
-     fn:= ExtractFileName(AValue);
-     FFileName:= ExtractFilePath(AValue);
-     FFileName:= ExtractRelativepath(ExtractFilePath(LazarusIDE.ActiveProject.ProjectInfoFile) ,FFileName);
-     FFileName:=FFileName+fn;
-     LoadFromFile(FFileName+fn);
-  end
-  else begin
-     FFileName := AValue;
-     LoadFromFile(FFileName);
-  end;
+  if (FFileName = '') then Exit;
+  LoadFromFile(FFileName);
   if not Empty then
     GifChanged;
 end;
@@ -441,10 +463,10 @@
   end;
 end;
 
-class function TGifAnim.GetControlClassDefaultSize: TPoint;
+class function TGifAnim.GetControlClassDefaultSize: TSize;
 begin
-  Result.X := 90;
-  Result.Y := 90;
+  Result.CX := 90;
+  Result.CY := 90;
 end;
 
 procedure TGifAnim.GifChanged;
Index: gifanimdsgn.pas
===================================================================
--- gifanimdsgn.pas	(revision 0)
+++ gifanimdsgn.pas	(revision 0)
@@ -0,0 +1,41 @@
+unit GifAnimDsgn;
+
+{$mode objfpc}{$H+}
+
+interface
+
+uses
+  LazIDEIntf, PropEdits;
+
+Type
+  TGifFileNamePropertyEditor = class(TFileNamePropertyEditor)
+  protected
+    function GetFilter: String; override;
+    function GetInitialDirectory: string; override;
+  end;
+
+procedure Register;
+
+implementation
+
+uses
+  SysUtils, GifAnim;
+
+function TGifFileNamePropertyEditor.GetFilter: String;
+begin
+  Result := 'GIF|*.gif';
+end;
+
+function TGifFileNamePropertyEditor.GetInitialDirectory: string;
+begin
+  Result:= ExtractFilePath(LazarusIDE.ActiveProject.ProjectInfoFile);
+end;
+
+procedure Register;
+begin
+  RegisterPropertyEditor(TypeInfo(String), TGifAnim,
+                         'FileName', TGifFileNamePropertyEditor);
+end;
+
+end.
+
Index: pkg_gifanim.lpk
===================================================================
--- pkg_gifanim.lpk	(revision none)
+++ pkg_gifanim.lpk	(working copy)
@@ -1,15 +1,21 @@
-<?xml version="1.0"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <CONFIG>
-  <Package Version="3">
+  <Package Version="4">
     <PathDelim Value="\"/>
     <Name Value="pkg_gifanim"/>
+    <AddToProjectUsesSection Value="True"/>
     <Author Value="Laurent Jacques"/>
     <CompilerOptions>
-      <Version Value="8"/>
+      <Version Value="11"/>
       <PathDelim Value="\"/>
       <SearchPaths>
-        <OtherUnitFiles Value="$(LazarusDir)\ide\"/>
+        <UnitOutputDirectory Value="lib\$(TargetCPU)-$(TargetOS)"/>
       </SearchPaths>
+      <Linking>
+        <Debugging>
+          <DebugInfoType Value="dsDwarf2Set"/>
+        </Debugging>
+      </Linking>
       <Other>
         <CompilerPath Value="$(CompPath)"/>
       </Other>
@@ -33,15 +39,16 @@
     <Type Value="RunAndDesignTime"/>
     <RequiredPkgs Count="2">
       <Item1>
-        <PackageName Value="FCL"/>
+        <PackageName Value="LCL"/>
         <MinVersion Major="1" Valid="True"/>
       </Item1>
       <Item2>
-        <PackageName Value="IDEIntf"/>
+        <PackageName Value="FCL"/>
+        <MinVersion Major="1" Valid="True"/>
       </Item2>
     </RequiredPkgs>
     <UsageOptions>
-      <UnitPath Value="$(PkgOutDir)\"/>
+      <UnitPath Value="$(PkgOutDir)"/>
     </UsageOptions>
     <PublishOptions>
       <Version Value="2"/>
Index: pkg_gifanim_dsgn.lpk
===================================================================
--- pkg_gifanim_dsgn.lpk	(revision 0)
+++ pkg_gifanim_dsgn.lpk	(revision 0)
@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<CONFIG>
+  <Package Version="4">
+    <PathDelim Value="\"/>
+    <Name Value="pkg_gifanim_dsgn"/>
+    <CompilerOptions>
+      <Version Value="11"/>
+      <PathDelim Value="\"/>
+      <SearchPaths>
+        <UnitOutputDirectory Value="lib\$(TargetCPU)-$(TargetOS)"/>
+      </SearchPaths>
+      <Linking>
+        <Debugging>
+          <DebugInfoType Value="dsDwarf2Set"/>
+        </Debugging>
+      </Linking>
+      <Other>
+        <CompilerMessages>
+          <MsgFileName Value=""/>
+        </CompilerMessages>
+        <CompilerPath Value="$(CompPath)"/>
+      </Other>
+    </CompilerOptions>
+    <License Value="GPL"/>
+    <Version Major="1" Minor="4"/>
+    <Files Count="1">
+      <Item1>
+        <Filename Value="gifanimdsgn.pas"/>
+        <HasRegisterProc Value="True"/>
+        <UnitName Value="GifAnimDsgn"/>
+      </Item1>
+    </Files>
+    <Type Value="DesignTime"/>
+    <RequiredPkgs Count="2">
+      <Item1>
+        <PackageName Value="IDEIntf"/>
+      </Item1>
+      <Item2>
+        <PackageName Value="pkg_gifanim"/>
+      </Item2>
+    </RequiredPkgs>
+    <UsageOptions>
+      <UnitPath Value="$(PkgOutDir)"/>
+    </UsageOptions>
+    <PublishOptions>
+      <Version Value="2"/>
+    </PublishOptions>
+  </Package>
+</CONFIG>
Index: pkg_gifanim_dsgn.pas
===================================================================
--- pkg_gifanim_dsgn.pas	(revision 0)
+++ pkg_gifanim_dsgn.pas	(revision 0)
@@ -0,0 +1,21 @@
+{ This file was automatically created by Lazarus. Do not edit!
+  This source is only used to compile and install the package.
+ }
+
+unit pkg_gifanim_dsgn;
+
+interface
+
+uses
+  GifAnimDsgn, LazarusPackageIntf;
+
+implementation
+
+procedure Register;
+begin
+  RegisterUnit('GifAnimDsgn', @GifAnimDsgn.Register);
+end;
+
+initialization
+  RegisterPackage('pkg_gifanim_dsgn', @Register);
+end.