1016 lines
32 KiB
Plaintext
1016 lines
32 KiB
Plaintext
unit utslvclpage;
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interface
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uses utslvclauxiliary,utslvclbase,utslvclgdi;
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type tcustomtabsheet = class(TCustomControl) //控件页面
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{**
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@explan(说明)page控件页面 %%
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**}
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private
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FImageIndex;
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protected
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function RealSetText(s);override;
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begin
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inherited;
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p := parent;
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if ifstring(s) and p and (p is class(tcustompagecontrol)) then
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begin
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id := p.GetPageID(self(true));
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p.SetTabText(id,s);
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end
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end
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public
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function AdjustSize();override;
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begin
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class(tcontrol).AdjustSize();
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end
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function paint();override; //设计器模式下绘制网格
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begin
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drawdesigninggrid();
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end
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function DesigningMove();override;//移动
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begin
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return false;
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end
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function DesigningSizer();override;//调整大小
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begin
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return false;
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end
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function create(AOwner);override;
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begin
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inherited;
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WsDlgModalFrame := true; //p.exstyle := 0x101;
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Caption := "tab";
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Visible := false;
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end
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end
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type tcustomtabcontrol = class(TCustomControl)
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private
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fclocker;//锁
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FirstViewIndex; //第一个展示的序号
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FCurrentid; //当前
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FPrevid; //上一个
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[weakref]FOnSelChanged;
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[weakref]FOnSelChanging; //正在改变
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//FOnrclick;
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FTabPosition;
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FTabHeight;
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FTabItemswidth;
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FScrollBtnRect;
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Fprevrect;
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fnextrect;
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FTabRects;
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FClientarea;
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protected
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FTabItems; //
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function setselidx(id); //选择序号
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begin
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if FCurrentid= id then return ;
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if fclocker.locked then return ;
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lk := new tcountlocker(fclocker);
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if id>=0 and id<FTabItems.length() then
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begin
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if FCurrentid<>-1 and fOnSelChanging then
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begin
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e := new tuieventbase(0,FCurrentid,id,0); //m,w,l,h
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doonSelChanging(self(true),e);
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if e.skip then return ;
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end
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FPrevid := FCurrentid;
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FCurrentid := id;
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InsureIdxVisible(id);
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//InvalidateRect(nil,false);
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//DoControlAlign();
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DoControlAlign();
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if FOnSelChanged then
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begin
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doonSelChange(self(true),new tuieventbase(0,FPrevid,FCurrentid,0));
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end
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end else
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if FTabItems.length()=0 then
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begin
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FPrevid := -1;
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FCurrentid := -1;
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end
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end
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function RemovePageTab(id);//移除sheet
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begin
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if not(id>=0) then return ;
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FTabItems.splice(id,1);
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if id = FCurrentid then
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begin
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if id = 0 then
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begin
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if FTabItems.length()=0 then
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begin
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FCurrentid := -1;
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FPrevid := -1;
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end
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end
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FCurrentid := -1;
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FPrevid := -1;
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cid := min(max(0,id-1),FTabItems.length()-1);
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if cid >=0 then
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begin
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return setselidx(cid);
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end else
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begin
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if FOnSelChanged then
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begin
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doonSelChange(self(true),new tuieventbase(0,-1,-1,0));
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end
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end
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end else
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if id<FCurrentid then
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begin
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FCurrentid--;
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end
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FPrevid := -1;
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DoControlAlign();
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//CalcTabs();
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//InvalidateRect(nil,false);
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end
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function CreateTableItem(cp);
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begin
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r := new tcustomtabitem();
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r.caption := cp;
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return r;
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end
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function CalcTabs(); //计算区域
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begin
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rec := getwndclientrect() ;//ClientRect; //区域
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fclosebtnrect := array();
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ft := font;
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if not ft then return ;
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fw := ft.width;
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if not fownerdraw then
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begin
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fh := ft.height;
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FTabHeight := fh+8;
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end
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FTabItemswidth := array();
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e := new tuieventbase(0,0,0,0);
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for i := 0 to FTabItems.length()-1 do
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begin
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pg := FTabItems[i];
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ta := pg.Caption;
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FTabItemswidth[i] := max(20, length(ta)*fw+10 );
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if fonmeasuretabwidth then
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begin
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e.wparam := i;
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CallMessgeFunction(fonmeasuretabwidth,self(true),e);
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if e.lparam>=0 then FTabItemswidth[i] := e.lparam;
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end
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end
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FMaxsize := sum(FTabItemswidth);
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FClientarea := rec;
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FScrollBtnRect := 0;
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Fprevrect := 0;
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fnextrect := 0;
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FTabRects := array();
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case FTabPosition of
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alLeft:
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begin
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if FTabItemswidth then
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begin
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FClientarea[0] :=rec[0]+FTabHeight;//FTabItemswidth[0];
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if length(FTabItemswidth)>1 and (FMaxsize>(rec[3]-rec[1])) then
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begin
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FScrollBtnRect := array(rec[0],rec[3]-FTabHeight*2,rec[0]+FTabHeight,rec[3]);
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Fprevrect := array(rec[0],rec[3]-FTabHeight*2,rec[0]+FTabHeight,rec[3]-FTabHeight);
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Fnextrect := array(rec[0],rec[3]-FTabHeight,rec[0]+FTabHeight,rec[3]);
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end else
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begin
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FirstViewIndex := 0;
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end
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ybase := rec[1];
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for i,v in FTabItemswidth do
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begin
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if i>=FirstViewIndex then
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begin
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FTabRects[i] := array(rec[0],ybase,FTabHeight+rec[0],ybase+FTabItemswidth[i]-1);
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ybase+=FTabItemswidth[i];
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if xbase>(rec[3]-FTabHeight-FTabHeight) then break;
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end
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else FTabRects[i] := nil;
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end
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end
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end
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alRight:
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begin
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if FTabItemswidth then
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begin
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FClientarea[2] :=rec[2]-FTabHeight;
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if length(FTabItemswidth)>1 and (FMaxsize>(rec[3]-rec[1])) then
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begin
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FScrollBtnRect := array(rec[2]-FTabHeight,rec[3]-FTabHeight*2,rec[2],rec[3]);
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Fprevrect := array(rec[2]-FTabHeight,rec[3]-FTabHeight*2,rec[2],rec[3]-FTabHeight);
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Fnextrect := array(rec[2]-FTabHeight,rec[3]-FTabHeight,rec[2],rec[3]);
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end else
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FirstViewIndex := 0;
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ybase := rec[1];
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for i,v in FTabItemswidth do
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begin
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if i>=FirstViewIndex then
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begin
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FTabRects[i] := array(rec[2]-FTabHeight,ybase,rec[2],ybase+FTabItemswidth[i]-1);
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ybase+=FTabItemswidth[i];
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if xbase>(rec[3]-FTabHeight-FTabHeight) then break;
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end
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else FTabRects[i] := nil;
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end
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end
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end
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alTop:
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begin
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if FTabItemswidth then
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begin
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FClientarea[1] :=rec[1]+FTabHeight;
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if fclosebtn then
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begin
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cbt := max(0,integer((FTabHeight-16)/2));
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fclosebtnrect := array(rec[2]-18,cbt,rec[2]+2,cbt+16);
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rec[2]-=21;
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end
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if length(FTabItemswidth)>1 and (FMaxsize>(rec[2]-rec[0]-(fclosebtn?20:0))) then
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begin
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FScrollBtnRect := array(rec[2]-FTabHeight*2,rec[1],rec[2],rec[1]+FTabHeight);
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Fnextrect := array(rec[2]-FTabHeight,rec[1],rec[2],rec[1]+FTabHeight);
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Fprevrect := array(rec[2]-FTabHeight*2,rec[1],rec[2]-FTabHeight,rec[1]+FTabHeight);
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end else FirstViewIndex := 0;
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xbase := rec[0];
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for i,v in FTabItemswidth do
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begin
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if i>=FirstViewIndex then
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begin
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FTabRects[i] := array(xbase,rec[1],xbase+FTabItemswidth[i]-1,FTabHeight+rec[1]);
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xbase+=FTabItemswidth[i];
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if xbase>(rec[2]-FTabHeight-FTabHeight) then break;
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end else
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FTabRects[i] := nil;
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end
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end
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end
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alBottom:
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begin
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if FTabItemswidth then
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begin
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FClientarea[3] :=rec[3]-FTabHeight;
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if length(FTabItemswidth)>1 and (FMaxsize>(rec[2]-rec[0])) then
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begin
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FScrollBtnRect := array(rec[2]-FTabHeight*2,rec[3]-FTabHeight,rec[2],rec[3]);
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Fnextrect := array(rec[2]-FTabHeight,rec[3]-FTabHeight,rec[2],rec[3]);
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Fprevrect := array(rec[2]-FTabHeight*2,rec[3]-FTabHeight,rec[2]-FTabHeight,rec[3]);
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end else FirstViewIndex := 0;
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xbase := rec[0];
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for i,v in FTabItemswidth do
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begin
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if i>=FirstViewIndex then
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begin
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FTabRects[i] := array(xbase,rec[3]-FTabHeight,xbase+FTabItemswidth[i]-1,rec[3]);
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xbase+=FTabItemswidth[i];
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if xbase>(rec[2]-FTabHeight-FTabHeight) then break;
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end else
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FTabRects[i] := nil;
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end
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end
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end
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end
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end
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private
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function gettabsheetitem(idx); virtual;
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begin
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if idx>=0 and idx<ftabitems.length() then return FTabItems[idx];
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end
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function SetTabPosition(v);
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begin
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if FTabPosition=v then exit;
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if not(v in array(alTop,alBottom,alLeft,alRight)) then exit;
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FTabPosition := v;
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DoControlAlign();
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//InvalidateRect(nil,false);
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end
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function GetTabCount();
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begin
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return FTabItems.length();
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end
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function InsureIdxVisible(id); //确保可见
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begin
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if FScrollBtnRect and (not FTabRects[id]) then
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begin
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tl := (FTabItems.length()-1);
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if id>FirstViewIndex then
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begin
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while(not FTabRects[min(id+1,tl)]) do
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begin
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FirstViewIndex++;
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CalcTabs();
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end
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end else
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if id<FirstViewIndex then
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begin
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while(not FTabRects[min(max(0,id),tl)]) do
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begin
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FirstViewIndex--;
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CalcTabs();
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end
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end
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end
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end
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function PaintTabs();//绘制tab
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begin
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lk := new tcountlocker(fclocker);
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dc := Canvas;
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dc.font := font;
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ar := 0->(FTabItems.length()-1);
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if FTabRects[FCurrentid] then
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begin
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ar[FCurrentid] := -100;
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ar[length(ar)] := FCurrentid;
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end
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for ii,i in ar do
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begin
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rec := FTabRects[i];
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if rec then
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begin
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if fownerdraw and fondrawtab then
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begin
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e := new teventdrawtab(i,(FCurrentid=i),rec,dc);
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CallMessgeFunction(fondrawtab,self(true),e);
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continue;
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end
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dc.pen.color := 13158600;//rgb(200,200,200);
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if FCurrentid=i then
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begin
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bc:= 0xc0b0a0;//rgb(100,192,250);//rgb(230,240,250);//rgb(200,200,200);
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end else bc := 16711422;//rgb(254,254,254);
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dc.brush.color := bc;
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dc.font.color := complementary_color(bc);///////////采用补色
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dc.draw("roundrect",array(rec[0:1],rec[2:3],array(2,2)));
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rec[1]+=2;
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it := FTabItems[i];
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if fTabPosition in array(alLeft,alRight) then
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begin
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dc.SaveDC();
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dc.trans(pi()/2,rec[0],rec[3]);
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dc.textout(it.Caption,array(4,3));
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//dc.drawtext(it.caption,array(0,0,rec[3]-rec[1],rec[2]-rec[0]),DT_CENTER .|DT_VCENTER);
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dc.RestoreDC();
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end else
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dc.drawtext(it.caption,rec,DT_CENTER .|DT_VCENTER);
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end
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end
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end
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function PaintScroll(); //绘制滚动
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begin
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dc := Canvas;
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if FScrollBtnRect then
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begin
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case FTabPosition of
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alTop,alBottom:
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begin
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rc1 := array(FScrollBtnRect[0:1]+1,(FScrollBtnRect[0]+FTabHeight-1,FScrollBtnRect[3]-1));
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dc.draw("framecontrol",rc1,DFC_SCROLL,DFCS_SCROLLLEFT);
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rc1 := array((FScrollBtnRect[0]+FTabHeight+1,FScrollBtnRect[1]+1),FScrollBtnRect[2:3]-1);
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dc.draw("framecontrol",rc1,DFC_SCROLL,DFCS_SCROLLRIGHT);
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end else
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begin
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rc1 := array(FScrollBtnRect[0:1]+1,(FScrollBtnRect[2]-1,FScrollBtnRect[3]-FTabHeight-1));
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dc.draw("framecontrol",rc1,DFC_SCROLL,DFCS_SCROLLUP);
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rc1 := array((FScrollBtnRect[0]+1,FScrollBtnRect[3]-FTabHeight+1),FScrollBtnRect[2:3]-1);
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dc.draw("framecontrol",rc1,DFC_SCROLL,DFCS_SCROLLDOWN);
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end
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end
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end
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if fclosebtnrect then
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begin
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dc.brush.color := 0x0000ff;
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dc.FillRect(fclosebtnrect);
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dc.pen.color := 0xf0f0f0;
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dc.moveto(fclosebtnrect[0:1]);
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dc.LineTo(fclosebtnrect[2:3]);
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dc.moveto(array(fclosebtnrect[2],fclosebtnrect[1]));
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dc.LineTo(array(fclosebtnrect[0],fclosebtnrect[3]));
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end
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end
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function ScrollPrev(); //滚动到下一个
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begin
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if FScrollBtnRect and FirstViewIndex>0 then
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begin
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FirstViewIndex-- ;
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DoControlAlign();//CalcTabs();
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//InvalidateRect(nil,false);
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end
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end
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function scrollnext(); //滚动到上一个
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begin
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if FScrollBtnRect and FirstViewIndex<FTabItems.length()-1 then
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begin
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rec := FTabRects[FTabItems.length()-1];
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case FTabPosition of
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alTop,alBottom:
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begin
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if rec and (rec[2]<Fprevrect[0]) then return ;
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end
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alLeft,alRight :
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begin
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if rec and (rec[3]<Fprevrect[1]) then return ;
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end
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end ;
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FirstViewIndex++ ;
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//CalcTabs();
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//InvalidateRect(nil,false);
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DoControlAlign();
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end
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end
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public
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function FontChanged(o);override;
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begin
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DoControlAlign();
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inherited;
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end
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function GetClientRect();override;
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begin
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return getsheetrect();
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end
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function GetPreferredSize(w,h);override;
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begin
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ft := font;
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if not ft then return ;
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if not ownerdraw then
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begin
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FTabHeight := ft.height+7;
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end
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case FTabPosition of
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alLeft,alRight:
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begin
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w := FTabHeight;
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h := height;
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end
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alTop,alBottom:
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begin
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h := FTabHeight;
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w := width;
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end
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alNone:
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begin
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h := FTabHeight;
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w := width;
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end else
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begin
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h := height;
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w := width;
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end
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end
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end
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function hittabat(xy); //命中
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begin
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r := array();
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if (FScrollBtnRect and pointinrect(xy,FScrollBtnRect)) then
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begin
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r["idx"] := "scroll";
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return r;
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end
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if (fclosebtnrect and pointinrect(xy,fclosebtnrect)) then
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begin
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r["idx"] := "closebtn";
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return r;
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end
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for i,v in FTabRects do
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begin
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if v and pointinrect(xy,v) then
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begin
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r["idx"] := i;
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r["pos"] := array(xy[0]-v[0],xy[1]-v[1]);
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return r;
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end
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end
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return r;
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end
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function getsheetrect(); //获得sheet
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begin
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{**
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@explan(说明) 获得sheet可视区域 %%
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@return(array) array(左,上,右,下) %%
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**}
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if not FClientarea then CalcTabs();
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return FClientarea;
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end
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function DesigningClick();override;
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begin
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return true;
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end
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function create(aowner);
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begin
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inherited;
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FTabPosition := alTop;
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fclosebtn := false;
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FTabHeight := font.height+8;
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end
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function AfterConstruction();override;
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begin
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inherited;
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fclocker := new tcountkernel();
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color := 0xffffff;
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height := 200;
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width := 200;
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left := 10;
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top := 10;
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FirstViewIndex := 0;
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FCurrentid := -1;
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FPrevid := -1;
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FTabItems := new tnumindexarray();
|
|
end
|
|
Function SetCurSel(id); virtual; //设置当前序号
|
|
begin
|
|
if ifnumber(id) and id>=0 then
|
|
begin
|
|
iid := integer(id);
|
|
setselidx(iid);
|
|
end
|
|
end
|
|
function paint();override; //绘制
|
|
begin
|
|
PaintTabs();
|
|
PaintScroll();
|
|
end
|
|
function MouseUp(o,e);override;//鼠标弹起
|
|
begin
|
|
if e.skip then return ;
|
|
ps := e.pos();
|
|
mb := e.button();
|
|
//if mb=mbRight then return ;
|
|
if(mb=mbLeft) then
|
|
begin
|
|
if fclosebtn and fclosebtnrect and pointinrect(ps,fclosebtnrect) then
|
|
begin
|
|
if fonclosebtnclick then
|
|
begin
|
|
e := new tuieventbase(0,0,0,0);
|
|
CallMessgeFunction(fonclosebtnclick,self(true),e);
|
|
end
|
|
return ;
|
|
end
|
|
if FScrollBtnRect and pointinrect(ps,fnextrect) then
|
|
begin
|
|
return ScrollNext();
|
|
end
|
|
if FScrollBtnRect and pointinrect(ps,Fprevrect) then
|
|
begin
|
|
return scrollprev();
|
|
end
|
|
end
|
|
if not FTabRects then return ;
|
|
for i := 0 to length( FTabRects)-1 do
|
|
begin
|
|
v := FTabRects[i];
|
|
if v and pointinrect(ps,v) then
|
|
begin
|
|
setselidx(i);
|
|
if Onclick and (mb = mbLeft) then
|
|
begin
|
|
CallMessgeFunction(Onclick,o,e);
|
|
end else
|
|
if onrclick and (mb = mbRight) then
|
|
begin
|
|
CallMessgeFunction(onrclick,o,e);
|
|
end
|
|
return ;
|
|
end
|
|
//
|
|
end
|
|
end
|
|
function doonSelChange(o,e);virtual;
|
|
begin
|
|
CallMessgeFunction(FOnSelChanged,o,e);
|
|
end
|
|
function doonSelChanging(o,e);virtual;
|
|
begin
|
|
CallMessgeFunction(fOnSelChanging,o,e);
|
|
end
|
|
function TabRect(AIndex: Integer); //获取区域
|
|
begin
|
|
r := FTabRects[AIndex];
|
|
if r then return r;
|
|
return array(0,0,0,0);
|
|
end
|
|
function GetTabText(AIndex);//获得caption
|
|
begin
|
|
r := "";
|
|
if AIndex<FTabItems.length() and AIndex>0 then return FTabItems[AIndex].Caption;
|
|
return r;
|
|
end
|
|
function DoControlAlign();override;//调整位置
|
|
begin
|
|
CalcTabs();
|
|
InvalidateRect(nil,false);
|
|
end
|
|
function SetTabText(i,Value);
|
|
begin
|
|
{**
|
|
@explan(说明)修改tab标签文字 %%
|
|
@param(i)(integer)序号 %%;
|
|
@param(Value)(string)文本 %%;
|
|
**}
|
|
it := FTabItems[i];
|
|
if it and value<>it.caption then
|
|
begin
|
|
it.Caption := Value;
|
|
DoControlAlign();
|
|
//InvalidateRect(nil,false);
|
|
end
|
|
end
|
|
function SetTabIndex(AIndex,AIndexnew);
|
|
begin
|
|
{**
|
|
@explan(说明) 修改标签的次序 %%
|
|
@param(AIndex)(integer) 位置 %%
|
|
@param(AIndexnew)(integer) 新位置 %%
|
|
**}
|
|
if (AIndex<>AIndexnew) and (AIndex>=0) and
|
|
(AIndex<FTabItems.length()) and (AIndexnew>=0) and
|
|
(AIndexnew<FTabItems.length()) then
|
|
begin
|
|
FTabItems.swap(AIndex,AIndexnew);
|
|
if FCurrentid = AIndex then
|
|
begin
|
|
FCurrentid := AIndexnew;
|
|
end else
|
|
if FCurrentid = AIndexnew then
|
|
begin
|
|
FCurrentid := AIndex;
|
|
end
|
|
DoControlAlign();//CalcTabs();
|
|
//InvalidateRect(nil,false);
|
|
end
|
|
end
|
|
function Recycling();override;
|
|
begin
|
|
FOnSelChanged := nil;
|
|
FOnSelChanging := nil;
|
|
FTabItems.splice(0,nil);
|
|
inherited;
|
|
end
|
|
{**
|
|
@param(cursel)(integer) 当前选中序号 %%
|
|
@param(TabCount)(integer) page数量 %%
|
|
@param(OnSelChange)(function[tcustompagecontrol,tuieventbase]) 标签已经切换 %%
|
|
@param(OnSelChanging)(function[tcustompagecontrol,tuieventbase]) 标签正在切换 %%
|
|
@param(Onrclcik)(function[tcustompagecontrol,tuieventbase]) 右键点击 %%
|
|
**}
|
|
published
|
|
property cursel:lazyinteger read FCurrentid write SetCurSel;
|
|
property OnSelChanged:eventhandler read FOnSelChanged write FOnSelChanged;
|
|
property OnSelChanging:eventhandler read FOnSelChanging write FOnSelChanging;
|
|
property TabCount read GetTabCount;
|
|
property tabs:Strings read get_tabs write set_tabs;
|
|
property TabPosition:tabalign read FTabPosition write SetTabPosition;
|
|
property tabsheetitem:tcustomtabitem read gettabsheetitem;
|
|
property onmeasuretabwidth:eventhandler read fonmeasuretabwidth write fonmeasuretabwidth;
|
|
property ondrawtab:eventhandler read fondrawtab write fondrawtab;
|
|
property ownerdraw:bool read fownerdraw write fownerdraw;
|
|
property tabheight:lazyinteger read FTabHeight write settabheight;
|
|
property closebtn:bool read fclosebtn write setclosebtn;
|
|
property onclosebtnclick:eventhandler read fonclosebtnclick write fonclosebtnclick;
|
|
private
|
|
fownerdraw;
|
|
fclosebtn;
|
|
fclosebtnrect;
|
|
[weakref] fondrawtab;
|
|
[weakref] fonmeasuretabwidth;
|
|
[weakref] fonclosebtnclick;
|
|
private
|
|
function get_tabs();
|
|
begin
|
|
r := array();
|
|
for i := 0 to FTabItems.length()-1 do
|
|
begin
|
|
r[i] := FTabItems[i].Caption;
|
|
end
|
|
return r ;
|
|
end
|
|
function set_tabs(r);
|
|
begin
|
|
if not ifarray(r) then return ;
|
|
if not NoRecycled() then return ;
|
|
rs := array();
|
|
for i,v in r do
|
|
begin
|
|
if ifstring(v) then rs[length(rs)] := v;
|
|
end
|
|
ts := get_tabs();
|
|
if ts<>rs then
|
|
begin
|
|
FTabItems.splice(0,nil);
|
|
for i,v in rs do
|
|
begin
|
|
FTabItems.Push(CreateTableItem(v));
|
|
end
|
|
AdjustSize();
|
|
FPrevid := -1;
|
|
FCurrentid := -1;
|
|
if FTabItems.length()>0 then
|
|
begin
|
|
setselidx(0);
|
|
end
|
|
end
|
|
end
|
|
function setclosebtn(v);
|
|
begin
|
|
nv := v?true:false;
|
|
if nv<>fclosebtn then
|
|
begin
|
|
fclosebtn := nv;
|
|
DoControlAlign();
|
|
end
|
|
end
|
|
function settabheight(h);
|
|
begin
|
|
if not NoRecycled() then return ;
|
|
if ownerdraw and ( h>=0) and FTabHeight<>h then
|
|
begin
|
|
FTabHeight := h;
|
|
AdjustSize();
|
|
end
|
|
end
|
|
end
|
|
type tcustompagecontrol = class(tcustomtabcontrol)
|
|
private
|
|
function gettabsheetitem(idx);override;
|
|
begin
|
|
if idx>=0 and idx<ftabitems.length() then return FTabItems[idx];
|
|
if isacceptsheettype(idx) then
|
|
begin
|
|
for i:= 0 to ftabitems.length()-1 do
|
|
begin
|
|
it := FTabItems[i];
|
|
if idx=it.PageSheet then return it;
|
|
end
|
|
end
|
|
end
|
|
function gettabesheet(idx);
|
|
begin
|
|
if idx>=0 and idx<ftabitems.length() then
|
|
begin
|
|
return FTabItems[idx].PageSheet;
|
|
end
|
|
end
|
|
function getactivetabsheet();
|
|
begin
|
|
id := cursel;
|
|
if id>=0 then return FTabItems[id].PageSheet;
|
|
end
|
|
|
|
function addtabitem(page);//添加sheet
|
|
begin
|
|
//if not(page is class(tcustomtabsheet)) then return -1;
|
|
for i := 0 to FTabItems.length()-1 do
|
|
begin
|
|
if FTabItems[i].PageSheet = page then return -1;
|
|
end
|
|
if page then
|
|
cp := page.Caption;
|
|
it := CreateTableItem(cp);
|
|
FTabItems.Push(it);
|
|
if FTabItems.length()>1 then
|
|
begin
|
|
if page then
|
|
begin
|
|
page.visible := false;
|
|
end
|
|
end
|
|
it.PageSheet := Page;
|
|
if cursel=-1 then
|
|
begin
|
|
setselidx(0);
|
|
end else
|
|
begin
|
|
if not (page is class(TWinControl)) then CalcTabs();
|
|
InvalidateRect(nil,false);
|
|
end
|
|
end
|
|
public
|
|
function GetPreferredSize(w,h);override;
|
|
begin
|
|
len := ftabitems.length();
|
|
if len<1 then
|
|
begin
|
|
w := width;
|
|
h := height;
|
|
return ;
|
|
end
|
|
w := 100;
|
|
h := 100;
|
|
for i:= 0 to len-1 do
|
|
begin
|
|
FTabItems[i].PageSheet.GetPreferredSize(wi,hi);
|
|
w := max(w,wi);
|
|
h := max(h,hi);
|
|
end
|
|
rc := ClientRect;
|
|
bc := BoundsRect;
|
|
dh := bc[3]-bc[1]-(rc[3]-rc[1]);
|
|
dw := bc[2]-bc[0]-(rc[2]-rc[0]);
|
|
w := w+dw;
|
|
h := h+dh;
|
|
end
|
|
function checknewchild(achild);override;//检查child
|
|
begin
|
|
r := inherited;
|
|
if isacceptsheettype( achild) then achild.Align := alNone;
|
|
return r;
|
|
end
|
|
function create(aowner);
|
|
begin
|
|
faccepttype := array();
|
|
inherited;
|
|
acceptsheettype(class(tcustomtabsheet));
|
|
end
|
|
function ControlAppended(AControl);override;
|
|
begin
|
|
if not isacceptsheettype(AControl) {not(AControl is class(tcustomtabsheet))} then return;
|
|
addtabitem(AControl);
|
|
end
|
|
function ControlDeleted(AControl);override;
|
|
begin
|
|
if not isacceptsheettype(AControl){ not(AControl is class(tcustomtabsheet))} then return;
|
|
id := GetPageID(AControl);
|
|
RemovePageTab(id);
|
|
//fcoolbands.deleteitem(AControl,true);
|
|
end
|
|
Function SetCurSel(id);override; //设置当前序号
|
|
begin
|
|
if isacceptsheettype(id) {id is class(tcustomtabsheet)} then
|
|
begin
|
|
return SetCurSel(GetPageID(id));
|
|
end
|
|
return inherited;
|
|
end
|
|
function GetPageID(page);//获得page序号
|
|
begin
|
|
{**
|
|
@explan(说明)获取page的序号 %%
|
|
**}
|
|
r := -1;
|
|
if isacceptsheettype(page) then
|
|
begin
|
|
for it := 0 to FTabItems.length()-1 do
|
|
begin
|
|
if FTabItems[it].PageSheet = page then
|
|
begin
|
|
return it;
|
|
end
|
|
end
|
|
end
|
|
return r;
|
|
end
|
|
function DoControlAlign();override;//调整位置
|
|
begin
|
|
inherited;
|
|
for i := 0 to FTabItems.length()-1 do
|
|
begin
|
|
pg := FTabItems[i].PageSheet;
|
|
if not pg then continue;
|
|
pg.Align := alNone;
|
|
curid := cursel;
|
|
if (pg is class(TWinControl)) and pg.WsPopUp then
|
|
begin
|
|
if i=curid then
|
|
begin
|
|
pg.show();
|
|
end
|
|
continue;
|
|
end
|
|
if i=curid then
|
|
begin
|
|
//pg.Visible := true;
|
|
rc := getsheetrect();
|
|
if not rc then return ;
|
|
pg.Visible := ((rc[3]>rc[1]) and (rc[2]>rc[0]));
|
|
rc[1]+=1;
|
|
if csDesigning in ComponentState then
|
|
begin
|
|
rc[0]+=2;
|
|
rc[2]-=2;
|
|
rc[3]-=2;
|
|
end
|
|
pg.SetBoundsrect(rc);
|
|
end else
|
|
begin
|
|
pg.Visible := false;
|
|
end
|
|
end
|
|
end
|
|
|
|
function Recycling();override;
|
|
begin
|
|
FOnSelChanged := nil;
|
|
FOnSelChanging := nil;
|
|
FTabItems.splice(0,nil);
|
|
inherited;
|
|
faccepttype := array();
|
|
end
|
|
function acceptsheettype(ty,del);
|
|
begin
|
|
idx := 0;
|
|
if ifstring(ty) and ty then
|
|
begin
|
|
ob := findclass(ty);
|
|
if ob then return acceptsheettype(ob,del);
|
|
return false;
|
|
end
|
|
if ty is class(tcontrol) then
|
|
begin
|
|
idx := inttostr(int64(ty));
|
|
end
|
|
if idx = 0 then return 0;
|
|
if del then
|
|
begin
|
|
reindex(faccepttype,array(idx:nil));
|
|
end else
|
|
begin
|
|
faccepttype[idx] := ty;
|
|
end
|
|
return true;
|
|
end
|
|
{**
|
|
@param(activetabsheet)(tcustomtabsheet) 当前选中的页面 %%
|
|
@param(tabsheet)(tcustomtabsheet) 通过下标获得页面 %%
|
|
**}
|
|
published
|
|
property activetabsheet:tcustomtabsheet read getactivetabsheet write SetCurSel;
|
|
property tabsheet read gettabesheet ;
|
|
private
|
|
tabs;
|
|
faccepttype;
|
|
private
|
|
function isacceptsheettype(c);
|
|
begin
|
|
for i,v in faccepttype do
|
|
begin
|
|
if c is v then return true;
|
|
end
|
|
end
|
|
end
|
|
implementation
|
|
type tcustomtabitem = class() //
|
|
{**
|
|
@explan(说明)tab控件标签对象 %%
|
|
**}
|
|
private
|
|
FCaption;
|
|
FVisible;
|
|
[weakref]FPageSheet;
|
|
function SetVisible(v);//设置可见
|
|
begin
|
|
nv := v?true:false;
|
|
if nv<>FVisible then
|
|
begin
|
|
FVisible := v;
|
|
end
|
|
end
|
|
function SetCaption(s);//设置标签
|
|
begin
|
|
if ifstring(s) and s<>FCaption then
|
|
begin
|
|
FCaption := s;
|
|
if PageSheet then PageSheet.Caption := s;
|
|
end
|
|
end
|
|
public
|
|
function Create();//构造
|
|
begin
|
|
FVisible:= true;
|
|
FCaption := "";
|
|
end
|
|
published
|
|
property Caption read FCaption write SetCaption;
|
|
property PageSheet read FPageSheet Write FPageSheet;
|
|
_tag;
|
|
end
|
|
type teventdrawtab = class(tuieventbase)
|
|
{**
|
|
@explan(说明)单元格绘制消息对象 %%
|
|
@param(idx)(integer) 序号 %%
|
|
@param(sel)(integer) 是否选中 %%
|
|
@param(rec)(array(左上右下)) 区域 %%
|
|
@param(canvas)(TCanvas) 画布 %%
|
|
**}
|
|
function create(id,s,rc,cvs);
|
|
begin
|
|
inherited create(0,0,0,0);
|
|
idx := id;
|
|
sel := s;
|
|
rec := rc;
|
|
canvas := cvs;
|
|
end
|
|
idx;
|
|
sel;
|
|
rec;
|
|
canvas;
|
|
end
|
|
initialization
|
|
|
|
end. |