Changeset 41 for trunk/Packages/Common/UListViewSort.pas

Timestamp:

May 8, 2019, 11:54:23 AM (5 years ago)

Author:

chronos

Message:

• Modified: Build under Lazarus 2.0.
• Modified: Used .lrj files instead of .lrt files.
• Modified: Removed TemplateGenerics package.

File:

• trunk/Packages/Common/UListViewSort.pas (modified) (16 diffs)

trunk/Packages/Common/UListViewSort.pas

@@ -9 +9 @@
 uses
   {$IFDEF Windows}Windows, CommCtrl, {$ENDIF}Classes, Graphics, ComCtrls, SysUtils,
-  Controls, DateUtils, Dialogs, SpecializedList, Forms, Grids, StdCtrls, ExtCtrls,
+  Controls, DateUtils, Dialogs, fgl, Forms, Grids, StdCtrls, ExtCtrls,
   LclIntf, LMessages, LclType, LResources;
 
@@ -52 +52 @@
     {$ENDIF}
   public
-    List: TListObject;
-    Source: TListObject;
+    List: TFPGObjectList<TObject>;
+    Source: TFPGObjectList<TObject>;
     constructor Create(AOwner: TComponent); override;
     destructor Destroy; override;
@@ -81 +81 @@
     FOnChange: TNotifyEvent;
     FStringGrid1: TStringGrid;
-    procedure DoOnKeyUp(Sender: TObject; var Key: Word; Shift: TShiftState);
-    procedure DoOnResize(Sender: TObject);
+    procedure GridDoOnKeyUp(Sender: TObject; var Key: Word; Shift: TShiftState);
+    procedure GridDoOnResize(Sender: TObject);
   public
     constructor Create(AOwner: TComponent); override;
@@ -98 +98 @@
   end;
 
+  { TListViewEx }
+
+  TListViewEx = class(TWinControl)
+  private
+    FFilter: TListViewFilter;
+    FListView: TListView;
+    FListViewSort: TListViewSort;
+    procedure ResizeHanlder;
+  public
+    constructor Create(TheOwner: TComponent); override;
+    destructor Destroy; override;
+  published
+    property ListView: TListView read FListView write FListView;
+    property ListViewSort: TListViewSort read FListViewSort write FListViewSort;
+    property Filter: TListViewFilter read FFilter write FFilter;
+    property Visible;
+  end;
+
 procedure Register;
 
@@ -105 +123 @@
 procedure Register;
 begin
-  RegisterComponents('Common', [TListViewSort, TListViewFilter]);
+  RegisterComponents('Common', [TListViewSort, TListViewFilter, TListViewEx]);
+end;
+
+{ TListViewEx }
+
+procedure TListViewEx.ResizeHanlder;
+begin
+end;
+
+constructor TListViewEx.Create(TheOwner: TComponent);
+begin
+  inherited Create(TheOwner);
+  Filter := TListViewFilter.Create(Self);
+  Filter.Parent := Self;
+  Filter.Align := alBottom;
+  ListView := TListView.Create(Self);
+  ListView.Parent := Self;
+  ListView.Align := alClient;
+  ListViewSort := TListViewSort.Create(Self);
+  ListViewSort.ListView := ListView;
+end;
+
+destructor TListViewEx.Destroy;
+begin
+  inherited Destroy;
 end;
 
 { TListViewFilter }
 
-procedure TListViewFilter.DoOnKeyUp(Sender: TObject; var Key: Word;
+procedure TListViewFilter.GridDoOnKeyUp(Sender: TObject; var Key: Word;
   Shift: TShiftState);
 begin
@@ -117 +159 @@
 end;
 
-procedure TListViewFilter.DoOnResize(Sender: TObject);
+procedure TListViewFilter.GridDoOnResize(Sender: TObject);
 begin
   FStringGrid1.DefaultRowHeight := FStringGrid1.Height;
@@ -135 +177 @@
   FStringGrid1.Options := [goFixedHorzLine, goFixedVertLine, goVertLine,
     goHorzLine, goRangeSelect, goEditing, goAlwaysShowEditor, goSmoothScroll];
-  FStringGrid1.OnKeyUp := DoOnKeyUp;
-  FStringGrid1.OnResize := DoOnResize;
+  FStringGrid1.OnKeyUp := GridDoOnKeyUp;
+  FStringGrid1.OnResize := GridDoOnResize;
 end;
 
@@ -142 +184 @@
 var
   I: Integer;
+  R: TRect;
 begin
   with FStringGrid1 do begin
-    //Columns.Clear;
     while Columns.Count > ListView.Columns.Count do Columns.Delete(Columns.Count - 1);
     while Columns.Count < ListView.Columns.Count do Columns.Add;
     for I := 0 to ListView.Columns.Count - 1 do begin
       Columns[I].Width := ListView.Columns[I].Width;
+      if Selection.Left = I then begin
+        R := CellRect(I, 0);
+        Editor.Left := R.Left + 2;
+        Editor.Width := R.Width - 4;
+      end;
     end;
   end;
@@ -197 +244 @@
   if AMsg.Msg = WM_NOTIFY then
   begin
-    Code := PHDNotify(vMsgNotify.NMHdr)^.Hdr.Code;
+    Code := NMHDR(PHDNotify(vMsgNotify.NMHdr)^.Hdr).Code;
     case Code of
       HDN_ENDTRACKA, HDN_ENDTRACKW:
@@ -272 +319 @@
 end;
 
+var
+  ListViewSortCompare: TCompareEvent;
+
+function ListViewCompare(const Item1, Item2: TObject): Integer;
+begin
+  Result := ListViewSortCompare(Item1, Item2);
+end;
+
 procedure TListViewSort.Sort(Compare: TCompareEvent);
 begin
+  // TODO: Because TFLGObjectList compare handler is not class method,
+  // it is necessary to use simple function compare handler with local variable
+  ListViewSortCompare := Compare;
   if (List.Count > 0) then
-    List.Sort(Compare);
+    List.Sort(ListViewCompare);
 end;
 
@@ -338 +396 @@
 begin
   inherited;
-  List := TListObject.Create;
-  List.OwnsObjects := False;
+  List := TFPGObjectList<TObject>.Create;
+  List.FreeObjects := False;
 end;
 
@@ -353 +411 @@
   TP1: TPoint;
   XBias, YBias: Integer;
-  OldColor: TColor;
+  PenColor: TColor;
+  BrushColor: TColor;
   BiasTop, BiasLeft: Integer;
   Rect1: TRect;
@@ -365 +424 @@
   Item.Left := 0;
   GetCheckBias(XBias, YBias, BiasTop, BiasLeft, ListView);
-  OldColor := ListView.Canvas.Pen.Color;
+  PenColor := ListView.Canvas.Pen.Color;
+  BrushColor := ListView.Canvas.Brush.Color;
   //TP1 := Item.GetPosition;
   lRect := Item.DisplayRect(drBounds); // Windows 7 workaround
@@ -377 +437 @@
   ItemLeft := Item.Left;
   ItemLeft := 23; // Windows 7 workaround
-  
+
   Rect1.Left := ItemLeft - CheckWidth - BiasLeft + 1 + XBias;
   //ShowMessage(IntToStr(Tp1.Y) + ', ' + IntToStr(BiasTop) + ', ' + IntToStr(XBias));
@@ -408 +468 @@
   end;
   //ListView.Canvas.Brush.Color := ListView.Color;
-  ListView.Canvas.Brush.Color := clWindow;
-  ListView.Canvas.Pen.Color := OldColor;
+  ListView.Canvas.Brush.Color := BrushColor;
+  ListView.Canvas.Pen.Color := PenColor;
 end;
 
@@ -476 +536 @@
     FHeaderHandle := ListView_GetHeader(FListView.Handle);
     for I := 0 to FListView.Columns.Count - 1 do begin
+      {$push}{$warn 5057 off}
       FillChar(Item, SizeOf(THDItem), 0);
+      {$pop}
       Item.Mask := HDI_FORMAT;
       Header_GetItem(FHeaderHandle, I, Item);