* Increased double buffer on x11 efficiency

* Fixed a bug on listbox that allowed Item 0 to be selected with the mouse
* Fixed a possible bug for TfpgTimer that possibly could allow
  timers to be skipped if timer(s) were destroyed during the callback

1 files changed, 17 insertions, 0 deletions

diff --git a/examples/gui/filegrid/filegrid.lpr b/examples/gui/filegrid/filegrid.lpr
index 70fc6e8b..f8cadada 100644
--- a/examples/gui/filegrid/filegrid.lpr
+++ b/examples/gui/filegrid/filegrid.lpr
@@ -7,6 +7,7 @@ uses
   cthreads,
   {$ENDIF}{$ENDIF}
   Classes,
+  SysUtils,
   fpgfx,
   gfxbase,
   gui_form,
@@ -15,6 +16,9 @@ uses
   gui_button;
 
 type
+
+  { TMainForm }
+
   TMainForm = class(TfpgForm)
   private
     FGrid: TfpgFileGrid;
@@ -22,6 +26,7 @@ type
     btnQuit: TfpgButton;
     procedure   chkShowHiddenChanged(Sender: TObject);
     procedure   btnQuitClicked(Sender: TObject);
+    procedure   GridDblClick(Sender: TObject; AButton: TMouseButton; AShift: TShiftState; const AMousePos: TPoint);
   public
     constructor Create(AOwner: TComponent); override;
   end;
@@ -40,6 +45,17 @@ begin
   Close;
 end;
 
+procedure TMainForm.GridDblClick(Sender: TObject; AButton: TMouseButton;
+  AShift: TShiftState; const AMousePos: TPoint);
+begin
+  if (FGrid.CurrentEntry.Attributes and faDirectory) = 0 then
+    Exit; //==>
+    
+  FGrid.FileList.ReadDirectory(FGrid.FileList.DirectoryName + FGrid.CurrentEntry.Name);
+  WindowTitle := FGrid.FileList.DirectoryName;
+  FGrid.Update;
+end;
+
 constructor TMainForm.Create(AOwner: TComponent);
 begin
   inherited Create(AOwner);
@@ -51,6 +67,7 @@ begin
   FGrid.FileList.ShowHidden := True;
   FGrid.FileList.ReadDirectory('');
   FGrid.Anchors := [anLeft, anTop, anBottom, anRight];
+  FGrid.OnDoubleClick := @GridDblClick;
   
   chkShowHidden := CreateCheckBox(self, 8, Height - 25, 'Show Hidden');
   chkShowHidden.Checked := True;