added multiple selections support to wxDirCtrl (closes #10830)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@60909 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/wx/dirctrl.h

@@ -25,6 +25,8 @@
            directory.
     @style{wxDIRCTRL_EDIT_LABELS}
            Allow the folder and file labels to be editable.
+    @style{wxDIRCTRL_MULTIPLE}
+           Allows multiple files and folders to be selected.
     @endStyleTable
 
     @library{wxbase}
@@ -118,6 +120,13 @@ public:
     */
     virtual wxString GetFilePath() const;
 
+    /**
+        Fills the array @a paths with the currently selected filepaths.
+
+        This function doesn't count a directory as a selection.
+    */
+    virtual void GetFilePaths(wxArrayString& paths) const;
+
     /**
         Returns the filter string.
     */
@@ -138,6 +147,11 @@ public:
     */
     virtual wxString GetPath() const;
 
+    /**
+        Fills the array @a paths with the selected directories and filenames.
+    */
+    virtual void GetPaths(wxArrayString& paths) const;
+
     /**
         Returns the root id for the tree control.
     */
@@ -185,5 +199,27 @@ public:
             control. If @false, they will not be displayed.
     */
     virtual void ShowHidden(bool show);
+
+    /**
+        Selects the given item.
+
+        In multiple selection controls, can be also used to deselect a
+        currently selected item if the value of @a select is false.
+        Existing selections are not changed. Only visible items can be
+        (de)selected, otherwise use ExpandPath().
+    */
+    virtual void SelectPath(const wxString& path, bool select = true);
+
+    /**
+        Selects only the specified paths, clearing any previous selection.
+
+        Only supported when wxDIRCTRL_MULTIPLE is set.
+    */
+    virtual void SelectPaths(const wxArrayString& paths);
+
+    /**
+        Removes the selection from all currently selected items.
+    */
+    virtual void UnselectAll();
 };