X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/4707b84cd074ff2ae9ada99579f864eb300f8774..7344108e8a129a3f9b4df5ab0f98a1713db03b89:/interface/wx/combo.h

diff --git a/interface/wx/combo.h b/interface/wx/combo.h
index ca1a7e441d..3531173f4b 100644
--- 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:      $Id$
-// 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
 
@@ -34,13 +48,44 @@ public:
 
         @return @true if the call succeeded, @false otherwise.
     */
-    virtual bool Create(wxWindow* parent);
+    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();
 
+    /**
+        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.
@@ -56,17 +101,22 @@ public:
     */
     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().
     */
-    virtual wxWindow* GetControl();
+    virtual wxWindow* GetControl() = 0;
 
     /**
         The derived class must implement this to return string representation
         of the value.
     */
-    virtual wxString GetStringValue() const;
+    virtual wxString GetStringValue() const = 0;
 
     /**
         The derived class must implement this to initialize its internal
@@ -81,7 +131,7 @@ public:
         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
@@ -131,11 +181,12 @@ public:
     */
     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.
-        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
@@ -248,13 +299,13 @@ struct wxComboCtrlFeatures
         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)
-    END_EVENT_TABLE()
+    wxEND_EVENT_TABLE()
     @endcode
 
     Here's how you would create and populate it in a dialog constructor:
@@ -264,6 +315,7 @@ struct wxComboCtrlFeatures
 
     wxListViewComboPopup* popupCtrl = new wxListViewComboPopup();
 
+    // It is important to call SetPopupControl() as soon as possible
     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}
-           The control will generate the event wxEVT_COMMAND_TEXT_ENTER
+           The control will generate the event @c wxEVT_COMMAND_TEXT_ENTER
            (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
 
-    @beginEventTable{wxCommandEvent}
+    @beginEventEmissionTable{wxCommandEvent}
     @event{EVT_TEXT(id, func)}
-           Process a wxEVT_COMMAND_TEXT_UPDATED event, when the text changes.
+           Process a @c wxEVT_COMMAND_TEXT_UPDATED event, when the text changes.
     @event{EVT_TEXT_ENTER(id, func)}
-           Process a wxEVT_COMMAND_TEXT_ENTER event, when RETURN is pressed in
+           Process a @c wxEVT_COMMAND_TEXT_ENTER event, when RETURN is pressed in
            the combo control.
+    @event{EVT_COMBOBOX_DROPDOWN(id, func)}
+           Process a @c wxEVT_COMMAND_COMBOBOX_DROPDOWN event, which is generated
+           when the popup window is shown (drops down).
+    @event{EVT_COMBOBOX_CLOSEUP(id, func)}
+           Process a @c wxEVT_COMMAND_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
 
     @library{wxbase}
     @category{ctrl}
-    <!-- @appearance{comboctrl.png} -->
+    @appearance{comboctrl.png}
 
     @see wxComboBox, wxChoice, wxOwnerDrawnComboBox, wxComboPopup,
          wxCommandEvent
 */
-class wxComboCtrl : public wxControl
+class wxComboCtrl : public wxControl,
+                    public wxTextEntry
 {
 public:
     /**
@@ -325,9 +385,10 @@ public:
             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
-            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
@@ -350,19 +411,6 @@ public:
     */
     virtual ~wxComboCtrl();
 
-    /**
-        This member function is not normally called in application code.
-        Instead, it can be implemented in a derived class to create a custom
-        popup animation.
-
-        The parameters are the same as those for DoShowPopup().
-
-        @return @true if animation finishes before the function returns,
-                @false otherwise. In the latter case you need to manually call
-                DoShowPopup() after the animation ends.
-    */
-    virtual bool AnimateShow(const wxRect& rect, int flags);
-
     /**
         Copies the selected text to the clipboard.
     */
@@ -387,36 +435,15 @@ public:
     virtual void Cut();
 
     /**
-        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.
-
-        @note If you have implemented OnButtonClick() to do something else than
-              show the popup, then DoSetPopupControl() must always set @a popup
-              to @NULL.
-    */
-    void DoSetPopupControl(wxComboPopup* popup);
+        Dismisses the popup window.
 
-    /**
-        This member function is not normally called in application code.
-        Instead, it must be called in a derived class to make sure popup is
-        properly shown after a popup animation has finished (but only if
-        AnimateShow() did not finish the animation within its function scope).
+        Notice that calling this function will generate a
+        @c wxEVT_COMMAND_COMBOBOX_CLOSEUP event.
 
-        @param rect
-            Position to show the popup window at, in screen coordinates.
-        @param flags
-            Combination of any of the following:
-            @beginTable
-            @row2col{wxComboCtrl::ShowAbove,
-                     Popup is shown above the control instead of below.}
-            @row2col{wxComboCtrl::CanDeferShow,
-                     Showing the popup can be deferred to happen sometime after
-                     ShowPopup() has finished. In this case, AnimateShow() must
-                     return false.}
-            @endTable
+        @since 2.9.2
     */
-    virtual void DoShowPopup(const wxRect& rect, int flags);
+    virtual void Dismiss();
+
 
     /**
         Enables or disables popup animation, if any, depending on the value of
@@ -424,6 +451,35 @@ public:
     */
     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().
@@ -478,6 +534,15 @@ public:
     */
     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.
 
@@ -491,6 +556,19 @@ public:
     */
     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().
@@ -509,6 +587,8 @@ public:
 
     /**
         Returns actual indentation in pixels.
+
+        @deprecated Use GetMargins() instead.
     */
     wxCoord GetTextIndent() const;
 
@@ -526,8 +606,14 @@ public:
 
     /**
         Dismisses the popup window.
+
+        @param generateEvent
+            Set this to @true in order to generate
+            @c wxEVT_COMMAND_COMBOBOX_CLOSEUP event.
+
+        @deprecated Use Dismiss() instead.
     */
-    virtual void HidePopup();
+    virtual void HidePopup(bool generateEvent=false);
 
     /**
         Returns @true if the popup is currently shown
@@ -562,6 +648,16 @@ public:
     */
     virtual void Paste();
 
+    /**
+        Shows the popup portion of the combo control.
+
+        Notice that calling this function will generate a
+        @c wxEVT_COMMAND_COMBOBOX_DROPDOWN event.
+
+        @since 2.9.2
+    */
+    virtual void Popup();
+
     /**
         Removes the text between the two positions in the combo control text
         field.
@@ -631,6 +727,18 @@ public:
     */
     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.
 
@@ -644,6 +752,21 @@ public:
     */
     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
@@ -709,10 +832,28 @@ public:
     */
     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.
+
+        @deprecated Use SetMargins() instead.
     */
     void SetTextIndent(int indent);
 
@@ -726,13 +867,15 @@ public:
     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.
+
+        @deprecated Use Popup() instead.
     */
     virtual void ShowPopup();
 
@@ -749,5 +892,52 @@ public:
         will appear as if the focus has been lost from it.
     */
     void UseAltPopupWindow(bool enable = true);
+
+protected:
+
+    /**
+        This member function is not normally called in application code.
+        Instead, it can be implemented in a derived class to create a custom
+        popup animation.
+
+        The parameters are the same as those for DoShowPopup().
+
+        @return @true if animation finishes before the function returns,
+                @false otherwise. In the latter case you need to manually call
+                DoShowPopup() after the animation ends.
+    */
+    virtual bool AnimateShow(const wxRect& rect, int flags);
+
+    /**
+        This member function is not normally called in application code.
+        Instead, it can be implemented in a derived class to return default
+        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
+              to @NULL.
+    */
+    virtual void DoSetPopupControl(wxComboPopup* popup);
+
+    /**
+        This member function is not normally called in application code.
+        Instead, it must be called in a derived class to make sure popup is
+        properly shown after a popup animation has finished (but only if
+        AnimateShow() did not finish the animation within its function scope).
+
+        @param rect
+            Position to show the popup window at, in screen coordinates.
+        @param flags
+            Combination of any of the following:
+            @beginTable
+            @row2col{wxComboCtrl::ShowAbove,
+                     Popup is shown above the control instead of below.}
+            @row2col{wxComboCtrl::CanDeferShow,
+                     Showing the popup can be deferred to happen sometime after
+                     ShowPopup() has finished. In this case, AnimateShow() must
+                     return false.}
+            @endTable
+    */
+    virtual void DoShowPopup(const wxRect& rect, int flags);
 };