Update utslvclgrid.tsf

优化

funcext/tvclib/utslvclgrid.tsf

@@ -41,10 +41,6 @@ type TcustomGridCtl = class(tcustomscrollcontrol)  //
     begin
         InvalidateRect(nil,false);
     end
-    function UpDateScrollBar();
-    begin
-        DoControlAlign();
-    end
     public
     function IncPaintLock();
     begin
@@ -66,40 +62,22 @@ type TcustomGridCtl = class(tcustomscrollcontrol)  //
         end
         inherited;
     end
+    function UpDateScrollBar();
+    begin
+        DoControlAlign();
+    end
     function DoControlAlign();override;
     begin
-        UpDateFixed();
-        InitialScroll();        
-    end 
-    private 
-    function allwidth();
-    begin
-        //return (FxWidth-FXfiexed);
-        r := 0;
-        for i:= 0 to FColsWidths.length()-1 do 
+        if(IsUpDating())then
         begin
-            r+=FColsWidths[i];
-        end 
-        return r;
-    end 
-    function allheigth();
-    begin
-        //return FyHeight-FYfiexed;
-        if FVariableRows then 
+            FScroolChanged := true;
+        end else
         begin
-            r := 0;
-            for i:= 0 to FRowsHeight.length()-1 do 
-            begin
-                r+=FRowsHeight[i];
-            end 
-            return r;
-        end else 
-        begin
-            r :=  FRowHeight*FItemCount; 
-            return r;
-        end    
+            UpDateFixed();
+            pt := New TPAINTCOUNT(self);
+            InitialScroll();
+        end      
     end 
-    public
     function Create(AOwner);override; //构造
     begin
         inherited;        
@@ -127,6 +105,8 @@ type TcustomGridCtl = class(tcustomscrollcontrol)  //
         FColsWidths := new tnumindexarray();
         FRowsHeight := new tnumindexarray();
         FVariableRows := false;
+        ThumbTrack := true;
+        FScroolChanged := false;
     end 
     function GetItemRect(i);virtual;  //根据行号获得其区域
     begin
@@ -721,6 +701,14 @@ type TcustomGridCtl = class(tcustomscrollcontrol)  //
     @param(FixedRows)(integer) 固定的行数作为列标 %%
     **}   
     private
+    function allwidth();
+    begin
+        return FxWidth;
+    end 
+    function allheigth();
+    begin
+        return FyHeight; 
+    end 
     function DrawAllParts(cvs,part,merg,rec);
     begin
         bcvs := new TCanvsRgnClipAutoSave(cvs,rec);
@@ -854,7 +842,6 @@ type TcustomGridCtl = class(tcustomscrollcontrol)  //
             DoControlAlign();
         end
     end
-
     function UpDateFixed(); //更新固定宽度
     begin
         xfix := 0;
@@ -879,6 +866,7 @@ type TcustomGridCtl = class(tcustomscrollcontrol)  //
             end
         end else
         begin
+            FyHeight := FRowHeight*FItemCount;
             FYfiexed := FMarginTop+FFixedRows * FRowHeight;
         end
         FXfiexed := FMarginLeft+xfix;
@@ -906,7 +894,8 @@ type TcustomGridCtl = class(tcustomscrollcontrol)  //
             cursor := FC_NORMAL;
             FC_CURRENT := FC_NORMAL;
         end
-    end    
+    end   
+    FScroolChanged; 
     FMergers;
     FAutoScroll;
     //固定***********
@@ -943,6 +932,43 @@ type TcustomGridCtl = class(tcustomscrollcontrol)  //
     FCurrentSizeId;
     FCurrentSizePos;
 end
+
+
+
+type TCanvsRgnClipAutoSave=class()//canvas 裁剪
+    {**
+    @expan(说明) 裁剪canvas区域,销毁时还原 %%
+    **}
+    function Create(cvs,rec);
+    begin
+        {**
+        @explan(说明)构造裁剪对象 %%
+        @param(cvs)(tcustomcanvas) canvas 对象 %%
+        @param(rec)(array(左上右下))区域 %%
+        **}
+        if(cvs is class(tcustomcanvas))and cvs.HandleAllocated()and ifarray(rec)then
+        begin
+            FW32api := cvs._wapi;
+            FCvsHandle := cvs.Handle;
+            FCrg := FW32api.CreateRectRgn(rec[0],rec[1],rec[2],rec[3]);
+            FBKrg := FW32api.SelectClipRgn(FCvsHandle,FCrg); //裁剪区域	
+        end
+    end
+    function Destroy();
+    begin
+        if FW32api and FCvsHandle and FBKrg and FCrg then
+        begin
+            FW32api.SelectClipRgn(FCvsHandle,FBKrg); //恢复区域
+            FW32api.DeleteObject(FCrg); //销毁区域
+        end
+        FW32api := nil;
+    end
+    private
+    FBKrg;
+    FCrg;
+    FCvsHandle;
+    FW32api;
+end
 implementation
 type TPAINTCOUNT=class
     {**
@@ -953,12 +979,12 @@ type TPAINTCOUNT=class
         if v is class(TControl)then
         begin
             FPainter := v;
-            v.BeginUpDate();
+            v.IncPaintLock();
         end
     end
     function Destroy();
     begin
-        if FPainter then FPainter.EndUpDate();
+        if FPainter then FPainter.DecPaintLock();
         FPainter := nil;
     end
     FPainter;