Implement monitoring of file descriptors in wxMotif event loop.

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

diff --git a/interface/wx/combo.h b/interface/wx/combo.h
index 78a3dca7fc77038cb724bf3288502932ecee4ab0..af5381eed4b39d16fe4f03d02785c1f6e6c1be01 100644 (file)
--- a/interface/wx/combo.h
+++ b/interface/wx/combo.h
@@ -3,9 +3,23 @@
 // Purpose:     interface of wxComboCtrl and wxComboPopup
 // Author:      wxWidgets team
 // RCS-ID:      $Id$
 // Purpose:     interface of wxComboCtrl and wxComboPopup
 // Author:      wxWidgets team
 // RCS-ID:      $Id$

-// Licence:     wxWindows license
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

+//
+// New window styles for wxComboCtrlBase
+//
+enum
+{
+    // Double-clicking a read-only combo triggers call to popup's OnComboPopup.
+    // In wxOwnerDrawnComboBox, for instance, it cycles item.
+    wxCC_SPECIAL_DCLICK             = 0x0100,
+
+    // Dropbutton acts like standard push button.
+    wxCC_STD_BUTTON                 = 0x0200
+};
+
+

 /**
     @class wxComboPopup
 
 /**
     @class wxComboPopup
 


@@ -36,11 +50,42 @@ public:
     */
     virtual bool Create(wxWindow* parent) = 0;
 
     */
     virtual bool Create(wxWindow* parent) = 0;
 

+    /**
+        You only need to implement this member function if you create
+        your popup class in non-standard way. The default implementation can
+        handle both multiple-inherited popup control (as seen in wxComboCtrl
+        samples) and one allocated separately in heap.
+
+        If you do completely re-implement this function, make sure it calls
+        Destroy() for the popup control and also deletes @a this object
+        (usually as the last thing).
+    */
+    virtual void DestroyPopup();
+

     /**
         Utility function that hides the popup.
     */
     void Dismiss();
 
     /**
         Utility function that hides the popup.
     */
     void Dismiss();
 

+    /**
+        Implement to customize matching of value string to an item container
+        entry.
+        
+        @param item
+            String entered, usually by user or from SetValue() call.
+            
+        @param trueItem
+            When item matches an entry, but the entry's string representation
+            is not exactly the same (case mismatch, for example), then the
+            true item string should be written back to here, if it is not
+            a NULL pointer.
+
+        @remarks
+            Default implementation always return true and does not alter
+            trueItem.
+    */
+    virtual bool FindItem(const wxString& item, wxString* trueItem=NULL);
+

     /**
         The derived class may implement this to return adjusted size for the
         popup control, according to the variables given.
     /**
         The derived class may implement this to return adjusted size for the
         popup control, according to the variables given.


@@ -56,6 +101,11 @@ public:
     */
     virtual wxSize GetAdjustedSize(int minWidth, int prefHeight, int maxHeight);
 
     */
     virtual wxSize GetAdjustedSize(int minWidth, int prefHeight, int maxHeight);
 

+    /**
+        Returns pointer to the associated parent wxComboCtrl.
+    */
+    wxComboCtrl* GetComboCtrl() const;
+

     /**
         The derived class must implement this to return pointer to the
         associated control created in Create().
     /**
         The derived class must implement this to return pointer to the
         associated control created in Create().


@@ -81,7 +131,7 @@ public:
         Useful in conjunction with LazyCreate().
     */
     bool IsCreated() const;
         Useful in conjunction with LazyCreate().
     */
     bool IsCreated() const;

-
+    

     /**
         The derived class may implement this to return @true if it wants to
         delay call to Create() until the popup is shown for the first time. It
     /**
         The derived class may implement this to return @true if it wants to
         delay call to Create() until the popup is shown for the first time. It


@@ -131,11 +181,12 @@ public:
     */
     virtual void SetStringValue(const wxString& value);
 
     */
     virtual void SetStringValue(const wxString& value);
 

+protected:

     /**
     /**

-        Parent wxComboCtrl. This is parameter has been prepared before Init()
-        is called.
+        Parent wxComboCtrl. This member variable is prepared automatically
+        before Init() is called.

     */
     */

-    wxComboCtrl m_combo;
+    wxComboCtrl*    m_combo;

 };
 
 
 };
 
 


@@ -153,7 +204,7 @@ struct wxComboCtrlFeatures
         BitmapButton    = 0x0002, ///< Button may be replaced with bitmap.
         ButtonSpacing   = 0x0004, ///< Button can have spacing from the edge
                                   ///< of the control.
         BitmapButton    = 0x0002, ///< Button may be replaced with bitmap.
         ButtonSpacing   = 0x0004, ///< Button can have spacing from the edge
                                   ///< of the control.

-        TextIndent      = 0x0008, ///< wxComboCtrl::SetTextIndent() can be used.
+        TextIndent      = 0x0008, ///< wxComboCtrl::SetMargins() can be used.

         PaintControl    = 0x0010, ///< Combo control itself can be custom painted.
         PaintWritable   = 0x0020, ///< A variable-width area in front of writable
                                   ///< combo control's textctrl can be custom
         PaintControl    = 0x0010, ///< Combo control itself can be custom painted.
         PaintWritable   = 0x0020, ///< A variable-width area in front of writable
                                   ///< combo control's textctrl can be custom


@@ -248,13 +299,13 @@ struct wxComboCtrlFeatures
         int m_value; // current item index
 
     private:
         int m_value; // current item index
 
     private:

-        DECLARE_EVENT_TABLE()
+        wxDECLARE_EVENT_TABLE();

     };
 
     };
 

-    BEGIN_EVENT_TABLE(wxListViewComboPopup, wxListView)
+    wxBEGIN_EVENT_TABLE(wxListViewComboPopup, wxListView)

         EVT_MOTION(wxListViewComboPopup::OnMouseMove)
         EVT_LEFT_UP(wxListViewComboPopup::OnMouseClick)
         EVT_MOTION(wxListViewComboPopup::OnMouseMove)
         EVT_LEFT_UP(wxListViewComboPopup::OnMouseClick)

-    END_EVENT_TABLE()
+    wxEND_EVENT_TABLE()

     @endcode
 
     Here's how you would create and populate it in a dialog constructor:
     @endcode
 
     Here's how you would create and populate it in a dialog constructor:


@@ -264,6 +315,7 @@ struct wxComboCtrlFeatures
 
     wxListViewComboPopup* popupCtrl = new wxListViewComboPopup();
 
 
     wxListViewComboPopup* popupCtrl = new wxListViewComboPopup();
 

+    // It is important to call SetPopupControl() as soon as possible

     comboCtrl->SetPopupControl(popupCtrl);
 
     // Populate using wxListView methods
     comboCtrl->SetPopupControl(popupCtrl);
 
     // Populate using wxListView methods


@@ -278,7 +330,7 @@ struct wxComboCtrlFeatures
     @style{wxCB_SORT}
            Sorts the entries in the list alphabetically.
     @style{wxTE_PROCESS_ENTER}
     @style{wxCB_SORT}
            Sorts the entries in the list alphabetically.
     @style{wxTE_PROCESS_ENTER}

-           The control will generate the event wxEVT_COMMAND_TEXT_ENTER
+           The control will generate the event @c wxEVT_TEXT_ENTER

            (otherwise pressing Enter key is either processed internally by the
            control or used for navigation between dialog controls). Windows
            only.
            (otherwise pressing Enter key is either processed internally by the
            control or used for navigation between dialog controls). Windows
            only.


@@ -291,22 +343,30 @@ struct wxComboCtrlFeatures
            Drop button will behave more like a standard push button.
     @endStyleTable
 
            Drop button will behave more like a standard push button.
     @endStyleTable
 

-    @beginEventTable{wxCommandEvent}
+    @beginEventEmissionTable{wxCommandEvent}

     @event{EVT_TEXT(id, func)}
     @event{EVT_TEXT(id, func)}

-           Process a wxEVT_COMMAND_TEXT_UPDATED event, when the text changes.
+           Process a @c wxEVT_TEXT event, when the text changes.

     @event{EVT_TEXT_ENTER(id, func)}
     @event{EVT_TEXT_ENTER(id, func)}

-           Process a wxEVT_COMMAND_TEXT_ENTER event, when RETURN is pressed in
+           Process a @c wxEVT_TEXT_ENTER event, when RETURN is pressed in

            the combo control.
            the combo control.

+    @event{EVT_COMBOBOX_DROPDOWN(id, func)}
+           Process a @c wxEVT_COMBOBOX_DROPDOWN event, which is generated
+           when the popup window is shown (drops down).
+    @event{EVT_COMBOBOX_CLOSEUP(id, func)}
+           Process a @c wxEVT_COMBOBOX_CLOSEUP event, which is generated
+           when the popup window of the combo control disappears (closes up).
+           You should avoid adding or deleting items in this event.

     @endEventTable
 
     @endEventTable
 

-    @library{wxbase}
+    @library{wxcore}

     @category{ctrl}
     @category{ctrl}

-    @appearance{comboctrl.png}
+    @appearance{comboctrl}

 
     @see wxComboBox, wxChoice, wxOwnerDrawnComboBox, wxComboPopup,
          wxCommandEvent
 */
 
     @see wxComboBox, wxChoice, wxOwnerDrawnComboBox, wxComboPopup,
          wxCommandEvent
 */

-class wxComboCtrl : public wxControl
+class wxComboCtrl : public wxControl,
+                    public wxTextEntry

 {
 public:
     /**
 {
 public:
     /**


@@ -325,9 +385,10 @@ public:
             Initial selection string. An empty string indicates no selection.
         @param pos
             Window position.
             Initial selection string. An empty string indicates no selection.
         @param pos
             Window position.

+            If ::wxDefaultPosition is specified then a default position is chosen.

         @param size
         @param size

-            Window size. If wxDefaultSize is specified then the window is sized
-            appropriately.
+            Window size. 
+            If ::wxDefaultSize is specified then the window is sized appropriately.

         @param style
             Window style. See wxComboCtrl.
         @param validator
         @param style
             Window style. See wxComboCtrl.
         @param validator


@@ -373,12 +434,52 @@ public:
     */
     virtual void Cut();
 
     */
     virtual void Cut();
 

+    /**
+        Dismisses the popup window.
+
+        Notice that calling this function will generate a
+        @c wxEVT_COMBOBOX_CLOSEUP event.
+
+        @since 2.9.2
+    */
+    virtual void Dismiss();
+
+

     /**
         Enables or disables popup animation, if any, depending on the value of
         the argument.
     */
     void EnablePopupAnimation(bool enable = true);
 
     /**
         Enables or disables popup animation, if any, depending on the value of
         the argument.
     */
     void EnablePopupAnimation(bool enable = true);
 

+    
+    /**
+       Returns true if given key combination should toggle the popup.
+    */
+    virtual bool IsKeyPopupToggle(const wxKeyEvent& event) const;
+
+
+    /**
+       Prepare background of combo control or an item in a dropdown list in a
+       way typical on platform. This includes painting the focus/disabled
+       background and setting the clipping region.
+
+       Unless you plan to paint your own focus indicator, you should always
+       call this in your wxComboPopup::PaintComboControl implementation.  In
+       addition, it sets pen and text colour to what looks good and proper
+       against the background.
+
+       flags: wxRendererNative flags:
+              wxCONTROL_ISSUBMENU: is drawing a list item instead of combo control
+              wxCONTROL_SELECTED: list item is selected
+              wxCONTROL_DISABLED: control/item is disabled
+    */
+    virtual void PrepareBackground( wxDC& dc, const wxRect& rect, int flags ) const;
+
+    /**
+       Returns true if focus indicator should be drawn in the control.
+    */
+    bool ShouldDrawFocus() const;
+

     /**
         Returns disabled button bitmap that has been set with
         SetButtonBitmaps().
     /**
         Returns disabled button bitmap that has been set with
         SetButtonBitmaps().


@@ -433,6 +534,15 @@ public:
     */
     static int GetFeatures();
 
     */
     static int GetFeatures();
 

+    /**
+        Returns the current hint string.
+
+        See SetHint() for more information about hints.
+
+        @since 2.9.1
+    */
+    virtual wxString GetHint() const;
+

     /**
         Returns the insertion point for the combo control's text field.
 
     /**
         Returns the insertion point for the combo control's text field.
 


@@ -446,6 +556,19 @@ public:
     */
     virtual long GetLastPosition() const;
 
     */
     virtual long GetLastPosition() const;
 

+    /**
+        Returns the margins used by the control. The @c x field of the returned
+        point is the horizontal margin and the @c y field is the vertical one.
+
+        @remarks If given margin cannot be accurately determined, its value
+                will be set to -1.
+
+        @see SetMargins()
+
+        @since 2.9.1
+    */
+    wxPoint GetMargins() const;
+

     /**
         Returns current popup interface that has been set with
         SetPopupControl().
     /**
         Returns current popup interface that has been set with
         SetPopupControl().


@@ -464,6 +587,8 @@ public:
 
     /**
         Returns actual indentation in pixels.
 
     /**
         Returns actual indentation in pixels.

+
+        @deprecated Use GetMargins() instead.

     */
     wxCoord GetTextIndent() const;
 
     */
     wxCoord GetTextIndent() const;
 


@@ -481,8 +606,14 @@ public:
 
     /**
         Dismisses the popup window.
 
     /**
         Dismisses the popup window.

+
+        @param generateEvent
+            Set this to @true in order to generate
+            @c wxEVT_COMBOBOX_CLOSEUP event.
+
+        @deprecated Use Dismiss() instead.

     */
     */

-    virtual void HidePopup();
+    virtual void HidePopup(bool generateEvent=false);

 
     /**
         Returns @true if the popup is currently shown
 
     /**
         Returns @true if the popup is currently shown


@@ -517,6 +648,16 @@ public:
     */
     virtual void Paste();
 
     */
     virtual void Paste();
 

+    /**
+        Shows the popup portion of the combo control.
+
+        Notice that calling this function will generate a
+        @c wxEVT_COMBOBOX_DROPDOWN event.
+
+        @since 2.9.2
+    */
+    virtual void Popup();
+

     /**
         Removes the text between the two positions in the combo control text
         field.
     /**
         Removes the text between the two positions in the combo control text
         field.


@@ -586,6 +727,18 @@ public:
     */
     void SetCustomPaintWidth(int width);
 
     */
     void SetCustomPaintWidth(int width);
 

+    /**
+        Sets a hint shown in an empty unfocused combo control.
+
+        Notice that hints are known as <em>cue banners</em> under MSW or
+        <em>placeholder strings</em> under OS X.
+
+        @see wxTextEntry::SetHint()
+
+        @since 2.9.1
+    */
+    virtual bool SetHint(const wxString& hint);
+

     /**
         Sets the insertion point in the text field.
 
     /**
         Sets the insertion point in the text field.
 


@@ -599,6 +752,21 @@ public:
     */
     virtual void SetInsertionPointEnd();
 
     */
     virtual void SetInsertionPointEnd();
 

+    //@{
+    /**
+        Attempts to set the control margins. When margins are given as wxPoint,
+        x indicates the left and y the top margin. Use -1 to indicate that
+        an existing value should be used.
+
+        @return
+            @true if setting of all requested margins was successful.
+
+        @since 2.9.1
+    */
+    bool SetMargins(const wxPoint& pt);
+    bool SetMargins(wxCoord left, wxCoord top = -1);
+    //@}
+

     /**
         Set side of the control to which the popup will align itself. Valid
         values are @c wxLEFT, @c wxRIGHT and 0. The default value 0 means that
     /**
         Set side of the control to which the popup will align itself. Valid
         values are @c wxLEFT, @c wxRIGHT and 0. The default value 0 means that


@@ -664,10 +832,28 @@ public:
     */
     void SetText(const wxString& value);
 
     */
     void SetText(const wxString& value);
 

+    /**
+        Set a custom window style for the embedded wxTextCtrl. Usually you
+        will need to use this during two-step creation, just before Create().
+        For example:
+
+        @code
+            wxComboCtrl* comboCtrl = new wxComboCtrl();
+
+            // Let's make the text right-aligned
+            comboCtrl->SetTextCtrlStyle(wxTE_RIGHT);
+
+            comboCtrl->Create(parent, wxID_ANY, wxEmptyString);
+        @endcode
+    */
+    void SetTextCtrlStyle( int style );
+

     /**
         This will set the space in pixels between left edge of the control and
         the text, regardless whether control is read-only or not. Value -1 can
         be given to indicate platform default.
     /**
         This will set the space in pixels between left edge of the control and
         the text, regardless whether control is read-only or not. Value -1 can
         be given to indicate platform default.

+
+        @deprecated Use SetMargins() instead.

     */
     void SetTextIndent(int indent);
 
     */
     void SetTextIndent(int indent);
 


@@ -681,13 +867,15 @@ public:
     virtual void SetValue(const wxString& value);
 
     /**
     virtual void SetValue(const wxString& value);
 
     /**

-        Same as SetValue(), but also sends wxCommandEvent of type
-        wxEVT_COMMAND_TEXT_UPDATED if @a withEvent is @true.
-    */
-    void SetValueWithEvent(const wxString& value, bool withEvent = true);
+       Changes value of the control as if user had done it by selecting an
+       item from a combo box drop-down list.
+     */
+    void SetValueByUser(const wxString& value);

 
     /**
         Show the popup.
 
     /**
         Show the popup.

+
+        @deprecated Use Popup() instead.

     */
     virtual void ShowPopup();
 
     */
     virtual void ShowPopup();
 


@@ -723,7 +911,7 @@ protected:
     /**
         This member function is not normally called in application code.
         Instead, it can be implemented in a derived class to return default
     /**
         This member function is not normally called in application code.
         Instead, it can be implemented in a derived class to return default

-        wxComboPopup, incase @a popup is @NULL.
+        wxComboPopup, in case @a popup is @NULL.

 
         @note If you have implemented OnButtonClick() to do something else than
               show the popup, then DoSetPopupControl() must always set @a popup
 
         @note If you have implemented OnButtonClick() to do something else than
               show the popup, then DoSetPopupControl() must always set @a popup