Added experimental async clipboard format query

[wxWidgets.git] / include / wx / headerctrl.h

diff --git a/include/wx/headerctrl.h b/include/wx/headerctrl.h
index 1557f0fb64694034c5fa0ebdad05ff9b618278d7..a95d094cb3f400fa922f3d462a6614c239a066ae 100644 (file)
--- a/include/wx/headerctrl.h
+++ b/include/wx/headerctrl.h
@@ -30,10 +30,14 @@ class WXDLLIMPEXP_FWD_CORE wxHeaderCtrlEvent;
 enum
 {
     // allow column drag and drop
-    wxHD_DRAGDROP = 0x0001,
+    wxHD_ALLOW_REORDER = 0x0001,
+
+    // allow hiding (and showing back) the columns using the menu shown by
+    // right clicking the header
+    wxHD_ALLOW_HIDE = 0x0002,
 
     // style used by default when creating the control
-    wxHD_DEFAULT_STYLE = wxHD_DRAGDROP
+    wxHD_DEFAULT_STYLE = wxHD_ALLOW_REORDER
 };
 
 extern WXDLLIMPEXP_DATA_CORE(const char) wxHeaderCtrlNameStr[];
@@ -86,6 +90,10 @@ public:
         DoUpdate(idx);
     }
 
+
+    // columns order
+    // -------------
+
     // set the columns order: the array defines the column index which appears
     // the given position, it must have GetColumnCount() elements and contain
     // all indices exactly once
@@ -110,6 +118,28 @@ public:
                                        unsigned int pos);
 
 
+    // UI helpers
+    // ----------
+
+    // show the popup menu containing all columns with check marks for the ones
+    // which are currently shown and return true if something was done using it
+    // (in this case UpdateColumnVisibility() will have been called) or false
+    // if the menu was cancelled
+    //
+    // this is called from the default right click handler for the controls
+    // with wxHD_ALLOW_HIDE style
+    bool ShowColumnsMenu(const wxPoint& pt, const wxString& title = wxString());
+
+    // show the columns customization dialog and return true if something was
+    // changed using it (in which case UpdateColumnVisibility() and/or
+    // UpdateColumnsOrder() will have been called)
+    //
+    // this is called by the control itself from ShowColumnsMenu() (which in
+    // turn is only called by the control if wxHD_ALLOW_HIDE style was
+    // specified) and if the control has wxHD_ALLOW_REORDER style as well
+    bool ShowCustomizeDialog();
+
+
     // implementation only from now on
     // -------------------------------
 
@@ -124,7 +154,7 @@ public:
 protected:
     // this method must be implemented by the derived classes to return the
     // information for the given column
-    virtual wxHeaderColumn& GetColumn(unsigned int idx) = 0;
+    virtual const wxHeaderColumn& GetColumn(unsigned int idx) const = 0;
 
     // this method is called from the default EVT_HEADER_SEPARATOR_DCLICK
     // handler to update the fitting column width of the given column, it
@@ -135,11 +165,34 @@ protected:
         return false;
     }
 
+    // this method is called from ShowColumnsMenu() and must be overridden to
+    // update the internal column visibility (there is no need to call
+    // UpdateColumn() from here, this will be done internally)
+    virtual void UpdateColumnVisibility(unsigned int WXUNUSED(idx),
+                                        bool WXUNUSED(show))
+    {
+        wxFAIL_MSG( "must be overridden if called" );
+    }
+
+    // this method is called from ShowCustomizeDialog() to reorder all columns
+    // at once and should be implemented for controls using wxHD_ALLOW_REORDER
+    // style (there is no need to call SetColumnsOrder() from here, this is
+    // done by the control itself)
+    virtual void UpdateColumnsOrder(const wxArrayInt& WXUNUSED(order))
+    {
+        wxFAIL_MSG( "must be overridden if called" );
+    }
+
     // this method can be overridden in the derived classes to do something
     // (e.g. update/resize some internal data structures) before the number of
     // columns in the control changes
     virtual void OnColumnCountChanging(unsigned int WXUNUSED(count)) { }
 
+
+    // helper function for the derived classes: update the array of column
+    // indices after the number of columns changed
+    void DoResizeColumnIndices(wxArrayInt& colIndices, unsigned int count);
+
 private:
     // methods implementing our public API and defined in platform-specific
     // implementations
@@ -157,6 +210,7 @@ private:
 
     // event handlers
     void OnSeparatorDClick(wxHeaderCtrlEvent& event);
+    void OnRClick(wxHeaderCtrlEvent& event);
 
     DECLARE_EVENT_TABLE()
 };
@@ -257,7 +311,7 @@ public:
 
 protected:
     // implement/override base class methods
-    virtual wxHeaderColumn& GetColumn(unsigned int idx);
+    virtual const wxHeaderColumn& GetColumn(unsigned int idx) const;
     virtual bool UpdateColumnWidthToFit(unsigned int idx, int widthTitle);
 
     // and define another one to be overridden in the derived classes: it