当我在TVirtualStringTree.PaintOptions中使用toUseExplorerTheme时,它会像这样绘制选择：
请注意,选择从控件的左侧延伸到任何节点标题的最右侧范围的位置;选择的宽度都相同.
我希望它看起来像这个图像(someone else’s project,使用Virtual TreeView),其中选择仅涵盖节点标题的文本：
除非Virtual TreeView中有回归(我使用5.2.2),否则这一定是可能的,但我找不到合适的选项组合.
这是我的设置代码：
fTree := TVirtualStringTree.Create(Self);
fTree.Parent := Self;
fTree.Align := alClient;
fTree.OnGetText := TreeGetText;
fTree.OnInitNode := TreeInitNode;
fTree.OnInitChildren := TreeInitChildren;
fTree.OnChange := TreeSelectionChange;
fTree.RootNodeCount := 1;
fTree.DrawSelectionMode := smBlendedRectangle;
fTree.TreeOptions.PaintOptions := fTree.TreeOptions.PaintOptions
+ [toUseExplorerTheme];
fTree.TreeOptions.SelectionOptions := fTree.TreeOptions.SelectionOptions
+ [toMultiSelect];
解决方法
对不起,
that was my fault.我在
this issue建议的陈述应该是：
procedure DrawBackground(State: Integer);
begin
// if the full row selection is disabled or toGridExtensions is in the MiscOptions,draw the selection
// into the InnerRect,otherwise into the RowRect
if not (toFullRowSelect in FOptions.FSelectionOptions) or (toGridExtensions in FOptions.FMiscOptions) then
DrawThemeBackground(Theme,PaintInfo.Canvas.Handle,TVP_TREEITEM,State,InnerRect,nil)
else
DrawThemeBackground(Theme,RowRect,nil);
end;
这同样适用于下一个嵌套过程DrawThemedFocusRect.修复程序现在已提交到revision r587,因此请更新您的虚拟树视图.感谢@joachim的合作！