VC6 SDK doesn't define INVALID_FILE_ATTRIBUTES, do it ourselves

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

diff --git a/interface/wx/headerctrl.h b/interface/wx/headerctrl.h
index a5358665c1cd41c5adc39df1794dac5a9c283fdb..02eed62ee4da9ea26fe7718c38bbee3a6ea246da 100644 (file)
--- a/interface/wx/headerctrl.h
+++ b/interface/wx/headerctrl.h
@@ -14,13 +14,13 @@
     wxHeaderCtrl is the control containing the column headings which is usually
     used for display of tabular data.
 
     wxHeaderCtrl is the control containing the column headings which is usually
     used for display of tabular data.
 

-    It is used as part of wxGrid and (will be used in the near future) in
-    in wxDataViewCtrl and report view of wxListCtrl but can be also used
-    independently. In general this class is meant to be used as part of another
-    control which already stores the column information somewhere as it can't
-    be used directly: instead you need to inherit from it and implement the
-    GetColumn() method to provide column information. See wxHeaderCtrlSimple
-    for a concrete control class which can be used directly.
+    It is used as part of wxGrid, in generic version wxDataViewCtrl and report
+    view of wxListCtrl but can be also used independently. In general this
+    class is meant to be used as part of another control which already stores
+    the column information somewhere as it can't be used directly: instead you
+    need to inherit from it and implement the GetColumn() method to provide
+    column information. See wxHeaderCtrlSimple for a concrete control class
+    which can be used directly.

 
     In addition to labeling the columns, the control has the following
     features:
 
     In addition to labeling the columns, the control has the following
     features:


@@ -53,12 +53,17 @@
 
 
     @beginStyleTable
 
 
     @beginStyleTable

-    @style{wxHD_DRAGDROP}
+    @style{wxHD_ALLOW_REORDER}

         If this style is specified (it is by default), the user can reorder
         the control columns by dragging them.
         If this style is specified (it is by default), the user can reorder
         the control columns by dragging them.

+    @style{wxHD_ALLOW_HIDE}
+        If this style is specified, the control shows a popup menu allowing the
+        user to change the columns visibility on right mouse click. Notice that
+        the program can always hide or show the columns, this style only
+        affects the users capability to do it.

     @style{wxHD_DEFAULT_STYLE}
         Symbolic name for the default control style, currently equal to
     @style{wxHD_DEFAULT_STYLE}
         Symbolic name for the default control style, currently equal to

-        @c wxHD_DRAGDROP.
+        @c wxHD_ALLOW_REORDER.

     @endStyleTable
 
     @beginEventTable{wxHeaderCtrlEvent}
     @endStyleTable
 
     @beginEventTable{wxHeaderCtrlEvent}


@@ -97,7 +102,7 @@
         wxHeaderCtrlEvent::GetWidth().
     @event{EVT_HEADER_BEGIN_REORDER(id, func)}
         The user started to drag the column with the specified index (this
         wxHeaderCtrlEvent::GetWidth().
     @event{EVT_HEADER_BEGIN_REORDER(id, func)}
         The user started to drag the column with the specified index (this

-        can only happen for the controls with wxHD_DRAGDROP style).
+        can only happen for the controls with wxHD_ALLOW_REORDER style).

         This event can be vetoed to prevent the column from being reordered,
         otherwise the end reorder message will be generated later.
     @event{EVT_HEADER_END_REORDER(id, func)}
         This event can be vetoed to prevent the column from being reordered,
         otherwise the end reorder message will be generated later.
     @event{EVT_HEADER_END_REORDER(id, func)}


@@ -161,8 +166,8 @@ public:
             The control style, @c wxHD_DEFAULT_STYLE by default. Notice that
             the default style allows the user to reorder the columns by
             dragging them and you need to explicitly turn this feature off by
             The control style, @c wxHD_DEFAULT_STYLE by default. Notice that
             the default style allows the user to reorder the columns by
             dragging them and you need to explicitly turn this feature off by

-            using @code wxHD_DEFAULT_STYLE & ~wxHD_DRAGDROP @endcode if this is
-            undesirable.
+            using @code wxHD_DEFAULT_STYLE & ~wxHD_ALLOW_REORDER @endcode if
+            this is undesirable.

         @param name
             The name of the control.
      */
         @param name
             The name of the control.
      */


@@ -236,11 +241,11 @@ public:
     /**
         Return the array describing the columns display order.
 
     /**
         Return the array describing the columns display order.
 

-        For the controls without wxHD_DRAGDROP style the returned array will be
-        the same as was passed to SetColumnsOrder() previously or define the
-        default order (with n-th element being n) if it hadn't been called. But
-        for the controls with wxHD_DRAGDROP style, the columns can be also
-        reordered by user.
+        For the controls without wxHD_ALLOW_REORDER style the returned array
+        will be the same as was passed to SetColumnsOrder() previously or
+        define the default order (with n-th element being n) if it hadn't been
+        called. But for the controls with wxHD_ALLOW_REORDER style, the columns
+        can be also reordered by user.

      */
     wxArrayInt GetColumnsOrder() const;
 
      */
     wxArrayInt GetColumnsOrder() const;
 


@@ -268,6 +273,14 @@ public:
      */
     unsigned int GetColumnPos(unsigned int idx) const;
 
      */
     unsigned int GetColumnPos(unsigned int idx) const;
 

+    /**
+        Reset the columns order to the natural one.
+
+        After calling this function, the column with index @c idx appears at
+        position @c idx in the control.
+     */
+    void ResetColumnsOrder();
+

     /**
         Helper function to manipulate the array of column indices.
 
     /**
         Helper function to manipulate the array of column indices.
 


@@ -288,6 +301,50 @@ public:
                                        unsigned int idx,
                                        unsigned int pos);
 
                                        unsigned int idx,
                                        unsigned int pos);
 

+    /**
+        Show the popup menu allowing the user to show or hide the columns.
+
+        This functions shows the popup menu containing all columns with check
+        marks for the ones which are currently shown and allows the user to
+        check or uncheck them to toggle their visibility. It is called from the
+        default EVT_HEADER_RIGHT_CLICK handler for the controls which have
+        wxHD_ALLOW_HIDE style. And if the column has wxHD_ALLOW_REORDER style
+        as well, the menu also contains an item to customize the columns shown
+        using which results in ShowCustomizeDialog() being called, please see
+        its description for more details.
+
+        If a column was toggled, UpdateColumnVisibility() virtual function is
+        called so it must be implemented for the controls with wxHD_ALLOW_HIDE
+        style or if you call this function explicitly.
+
+        @param pt
+            The position of the menu, in the header window coordinates.
+        @param title
+            The title for the menu if not empty.
+        @return
+            @true if a column was shown or hidden or @false if nothing was
+            done, e.g. because the menu was cancelled.
+     */
+    int ShowColumnsMenu(const wxPoint& pt, const wxString& title = wxString());
+
+    /**
+        Show the column customization dialog.
+
+        This function displays a modal dialog containing the list of all
+        columns which the user can use to reorder them as well as show or hide
+        individual columns.
+
+        If the user accepts the changes done in the dialog, the virtual
+        methods UpdateColumnVisibility() and UpdateColumnsOrder() will be
+        called so they must be overridden in the derived class if this method
+        is ever called. Please notice that the user will be able to invoke it
+        interactively from the header popup menu if the control has both
+        wxHD_ALLOW_HIDE and wxHD_ALLOW_REORDER styles.
+
+        @see wxRearrangeDialog
+     */
+    bool ShowCustomizeDialog();
+

 protected:
     /**
         Method to be implemented by the derived classes to return the
 protected:
     /**
         Method to be implemented by the derived classes to return the


@@ -297,7 +354,51 @@ protected:
             The column index, between 0 and the value last passed to
             SetColumnCount().
      */
             The column index, between 0 and the value last passed to
             SetColumnCount().
      */

-    virtual wxHeaderColumnBase& GetColumn(unsigned int idx) = 0;
+    virtual const wxHeaderColumnBase& GetColumn(unsigned int idx) const = 0;
+
+    /**
+        Method called when the column visibility is changed by the user.
+
+        This method is called from ShowColumnsMenu() or ShowCustomizeDialog()
+        when the user interactively hides or shows a column. A typical
+        implementation will simply update the internally stored column state.
+        Notice that there is no need to call UpdateColumn() from this method as
+        it is already done by wxHeaderCtrl itself.
+
+        The base class version doesn't do anything and must be overridden if
+        this method is called.
+
+        @param idx
+            The index of the column whose visibility was toggled.
+        @param show
+            The new visibility value, @true if the column is now shown or
+            @false if it is not hidden.
+     */
+    virtual void UpdateColumnVisibility(unsigned int idx, bool show);
+
+    /**
+        Method called when the columns order is changed in the customization
+        dialog.
+
+        This method is only called from ShowCustomizeDialog() when the user
+        changes the order of columns. In particular it is @em not called if a
+        single column changes place because the user dragged it to the new
+        location, the EVT_HEADER_END_REORDER event handler should be used to
+        react to this.
+
+        A typical implementation in a derived class will update the display
+        order of the columns in the associated control, if any. Notice that
+        there is no need to call SetColumnsOrder() from it as wxHeaderCtrl does
+        it itself.
+
+        The base class version doesn't do anything and must be overridden if
+        this method is called.
+
+        @param order
+            The new column order. This array uses the same convention as
+            SetColumnsOrder().
+     */
+    virtual void UpdateColumnsOrder(const wxArrayInt& order);

 
     /**
         Method which may be implemented by the derived classes to allow double
 
     /**
         Method which may be implemented by the derived classes to allow double


@@ -325,7 +426,7 @@ protected:
             {
             public:
             protected:
             {
             public:
             protected:

-                virtual wxHeaderColumnBase& GetColumn(unsigned int idx)
+                virtual wxHeaderColumnBase& GetColumn(unsigned int idx) const

                 {
                     return m_cols[idx];
                 }
                 {
                     return m_cols[idx];
                 }