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TAChart: Add Notification method to TChartListbox.

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git-svn-id: trunk@46176 -
This commit is contained in:
wp 2014-09-11 07:12:58 +00:00
parent dfd57d9ec8
commit 85931626dd
1 changed files with 9 additions and 1 deletions
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10
components/tachart/tachartlistbox.pas
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@ -86,6 +86,7 @@ type
procedure ClickedItem(AIndex: Integer); virtual;
procedure ClickedSeriesIcon(AIndex: Integer); virtual;
function CreateLegendItems: TChartLegendItems;
procedure Notification(AComponent: TComponent; AOperation: TOperation); override;
procedure Populate;
public
@ -457,6 +458,13 @@ begin
end;
end;
procedure TChartListbox.Notification(AComponent: TComponent; AOperation: TOperation);
begin
if (AOperation = opRemove) and (AComponent = FChart) then
FChart := nil;
inherited Notification(AComponent, AOperation);
end;
procedure TChartListbox.Populate;
{ populates the listbox with all series contained in the chart. Use the event
OnPopulate if you don't omit special series from the listbox (RemoveSeries) }
@ -466,7 +474,7 @@ begin
Items.BeginUpdate;
try
Items.Clear;
if FChart = nil then exit;
if (FChart = nil) or (FChart.Series = nil) then exit;
FreeAndNil(FLegendItems);
FLegendItems := CreateLegendItems;
Chart.Legend.SortItemsByOrder(FLegendItems);