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Harmonize wxDataViewCtrl::GetSelection() behaviour in all ports.

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wxDataViewCtrl::GetSelection() now always returns invalid item if more than
a single item is selected in a multi-selection control.

Also add HasSelection() and GetSelectedItemsCount() to allow checking if any
items are selected.

Updated the documentation, all ports and added a test for all these functions.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@68844 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2011-08-22 12:41:19 +00:00
parent c3ad4d4a45
commit fa93d732e2
16 changed files with 160 additions and 68 deletions
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10
include/wx/dataview.h
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@@ -663,7 +663,15 @@ public:
wxDataViewItem GetCurrentItem() const;
void SetCurrentItem(const wxDataViewItem& item);
virtual wxDataViewItem GetSelection() const = 0;
// Selection: both GetSelection() and GetSelections() can be used for the
// controls both with and without wxDV_MULTIPLE style. For single selection
// controls GetSelections() is not very useful however. And for multi
// selection controls GetSelection() returns an invalid item if more than
// one item is selected. Use GetSelectedItemsCount() or HasSelection() to
// check if any items are selected at all.
virtual int GetSelectedItemsCount() const = 0;
bool HasSelection() const { return GetSelectedItemsCount() != 0; }
wxDataViewItem GetSelection() const;
virtual int GetSelections( wxDataViewItemArray & sel ) const = 0;
virtual void SetSelections( const wxDataViewItemArray & sel ) = 0;
virtual void Select( const wxDataViewItem & item ) = 0;