synchronize GTK2 minimum version in docs

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

diff --git a/interface/wx/window.h b/interface/wx/window.h
index 7228e0edcb394638b9bbe59531c899b1c590e60d..d98fb8b0abbd74dfc1389c8234640c703bbcdb2c 100644 (file)
--- a/interface/wx/window.h
+++ b/interface/wx/window.h
@@ -53,18 +53,21 @@ enum wxShowEffect
 
 
 /**
 
 
 /**

-   struct containing all the visual attributes of a control
+    Struct containing all the visual attributes of a control.

 */
 struct  wxVisualAttributes
 {
 */
 struct  wxVisualAttributes
 {

-    // the font used for control label/text inside it
+    /// The font used for control label/text inside it.

     wxFont font;
 
     wxFont font;
 

-    // the foreground colour
+    /// The foreground colour.

     wxColour colFg;
 
     wxColour colFg;
 

-    // the background colour, may be wxNullColour if the controls background
-    // colour is not solid
+    /**
+        The background colour.
+
+        May be wxNullColour if the controls background colour is not solid.
+     */

     wxColour colBg;
 };
 
     wxColour colBg;
 };
 


@@ -490,6 +493,23 @@ public:
         @see GetNextSibling()
     */
     wxWindow* GetPrevSibling() const;
         @see GetNextSibling()
     */
     wxWindow* GetPrevSibling() const;

+
+    /**
+        Check if the specified window is a descendant of this one.
+
+        Returns @true if the window is a descendant (i.e. a child or
+        grand-child or grand-grand-child or ...) of this one.
+
+        Notice that a window can never be a descendant of another one if they
+        are in different top level windows, i.e. a child of a wxDialog is not
+        considered to be a descendant of dialogs parent wxFrame.
+
+        @param win Any window, possible @NULL (@false is always returned then).
+
+        @since 2.9.4
+     */
+    bool IsDescendant(wxWindowBase* win) const;
+

     /**
         Reparents the window, i.e. the window will be removed from its
         current parent window (e.g. a non-standard toolbar in a wxFrame)
     /**
         Reparents the window, i.e. the window will be removed from its
         current parent window (e.g. a non-standard toolbar in a wxFrame)


@@ -717,7 +737,8 @@ public:
     /**
         @name Sizing functions
 
     /**
         @name Sizing functions
 

-        See also the protected functions DoGetBestSize() and SetInitialBestSize().
+        See also the protected functions DoGetBestSize() and
+        DoGetBestClientSize().

     */
     //@{
 
     */
     //@{
 


@@ -798,13 +819,32 @@ public:
         wxPanel), the size returned by this function will be the same as the size
         the window would have had after calling Fit().
 
         wxPanel), the size returned by this function will be the same as the size
         the window would have had after calling Fit().
 

-        Note that when you write your own widget you need to override the
-        DoGetBestSize() function instead of this (non-virtual!) function.
+        Override virtual DoGetBestSize() or, better, because it's usually more
+        convenient, DoGetBestClientSize() when writing your own custom window
+        class to change the value returned by this public non-virtual method.

 
         @see CacheBestSize(), @ref overview_windowsizing
     */
     wxSize GetBestSize() const;
 
 
         @see CacheBestSize(), @ref overview_windowsizing
     */
     wxSize GetBestSize() const;
 

+    /**
+        Returns the best height needed by this window if it had the given width.
+
+        @see DoGetBestClientHeight()
+
+        @since 2.9.4
+     */
+    int GetBestHeight(int width) const;
+
+    /**
+        Returns the best width needed by this window if it had the given height.
+
+        @see DoGetBestClientWidth()
+
+        @since 2.9.4
+     */
+    int GetBestWidth(int height) const;
+

     /**
         Returns the size of the window 'client area' in pixels.
 
     /**
         Returns the size of the window 'client area' in pixels.
 


@@ -1395,12 +1435,6 @@ public:
             A pointer to a integer value for the y coordinate. Pass the client
             coordinate in, and a screen coordinate will be passed out.
 
             A pointer to a integer value for the y coordinate. Pass the client
             coordinate in, and a screen coordinate will be passed out.
 

-        @beginWxPythonOnly
-        In place of a single overloaded method name, wxPython implements the following methods:
-            - ClientToScreen(point): Accepts and returns a wxPoint
-            - ClientToScreenXY(x, y): Returns a 2-tuple, (x, y)
-        @endWxPythonOnly
-

         @beginWxPerlOnly
         In wxPerl this method returns a 2-element list instead of
         modifying its parameters.
         @beginWxPerlOnly
         In wxPerl this method returns a 2-element list instead of
         modifying its parameters.


@@ -1755,11 +1789,57 @@ public:
         @c wxBG_STYLE_PAINT is a simpler and more efficient solution to the same
         problem.
 
         @c wxBG_STYLE_PAINT is a simpler and more efficient solution to the same
         problem.
 

+
+        Under wxGTK and wxOSX, you can use ::wxBG_STYLE_TRANSPARENT to obtain
+        full transparency of the window background. Note that wxGTK supports
+        this only since GTK 2.12 with a compositing manager enabled, call
+        IsTransparentBackgroundSupported() to check whether this is the case.
+
+        Also, on order for @c SetBackgroundStyle(wxBG_STYLE_TRANSPARENT) to
+        work, it must be called before Create(). If you're using your own
+        wxWindow-derived class you should write your code in the following way:
+        @code
+            class MyWidget : public wxWindow
+            {
+            public:
+                MyWidget(wxWindow* parent, ...)
+                    : wxWindow() // Use default ctor here!
+                {
+                    // Do this first:
+                    SetBackgroundStyle(wxBG_STYLE_TRANSPARENT);
+
+                    // And really create the window afterwards:
+                    Create(parent, ...);
+                }
+            };
+        @endcode
+

         @see SetBackgroundColour(), GetForegroundColour(),
         @see SetBackgroundColour(), GetForegroundColour(),

-             SetTransparent()
+             SetTransparent(), IsTransparentBackgroundSupported()

     */
     virtual bool SetBackgroundStyle(wxBackgroundStyle style);
 
     */
     virtual bool SetBackgroundStyle(wxBackgroundStyle style);
 

+    /**
+        Checks whether using transparent background might work.
+
+        If this function returns @false, calling SetBackgroundStyle() with
+        ::wxBG_STYLE_TRANSPARENT is not going to work. If it returns @true,
+        setting transparent style should normally succeed.
+
+        Notice that this function would typically be called on the parent of a
+        window you want to set transparent background style for as the window
+        for which this method is called must be fully created.
+
+        @param reason
+            If not @NULL, a reason message is provided if transparency is not
+            supported.
+
+        @return @true if background transparency is supported.
+
+        @since 2.9.4
+    */
+    virtual bool IsTransparentBackgroundSupported(wxString *reason = NULL) const;
+

     /**
         Sets the font for this window. This function should not be called for the
         parent window if you don't want its font to be inherited by its children,
     /**
         Sets the font for this window. This function should not be called for the
         parent window if you don't want its font to be inherited by its children,


@@ -3099,6 +3179,9 @@ public:
     */
     virtual bool IsDoubleBuffered() const;
 
     */
     virtual bool IsDoubleBuffered() const;
 

+    /**
+       Turn on or off double buffering of the window if the system supports it.
+    */

     void SetDoubleBuffered(bool on);
 
     /**
     void SetDoubleBuffered(bool on);
 
     /**


@@ -3123,17 +3206,6 @@ public:
     */
     virtual bool IsTopLevel() const;
 
     */
     virtual bool IsTopLevel() const;
 

-    /**
-        Disables all other windows in the application so that
-        the user can only interact with this window.
-
-        @param modal
-            If @true, this call disables all other windows in the application so that
-            the user can only interact with this window. If @false, the effect is
-            reversed.
-    */
-    virtual void MakeModal(bool modal = true);
-

     
     /**
         This virtual function is normally only used internally, but
     
     /**
         This virtual function is normally only used internally, but


@@ -3386,9 +3458,11 @@ protected:
     virtual void DoCentre(int direction);
 
     /**
     virtual void DoCentre(int direction);
 
     /**

-        Gets the size which best suits the window: for a control, it would be
-        the minimal size which doesn't truncate the control, for a panel - the
-        same size as it would have after a call to Fit().
+        Implementation of GetBestSize() that can be overridden.
+
+        Notice that it is usually more convenient to override
+        DoGetBestClientSize() rather than this method itself as you need to
+        explicitly account for the window borders size if you do the latter.

 
         The default implementation of this function is designed for use in container
         windows, such as wxPanel, and works something like this:
 
         The default implementation of this function is designed for use in container
         windows, such as wxPanel, and works something like this:


@@ -3406,11 +3480,65 @@ protected:
     */
     virtual wxSize DoGetBestSize() const;
 
     */
     virtual wxSize DoGetBestSize() const;
 

+    /**
+        Override this method to return the best size for a custom control.
+
+        A typical implementation of this method should compute the minimal size
+        needed to fully display the control contents taking into account the
+        current font size.
+
+        The default implementation simply returns ::wxDefaultSize and
+        GetBestSize() returns an arbitrary hardcoded size for the window, so
+        you must override it when implementing a custom window class.
+
+        @see @ref overview_windowsizing
+
+        @since 2.9.0
+     */
+    virtual wxSize DoGetBestClientSize() const;
+
+    /**
+        Override this method to implement height-for-width best size
+        calculation.
+
+        Return the height needed to fully display the control contents if its
+        width is fixed to the given value. Custom classes implementing
+        wrapping should override this method and return the height
+        corresponding to the number of lines needed to lay out the control
+        contents at this width.
+
+        Currently this method is not used by wxWidgets yet, however it is
+        planned that it will be used by the new sizer classes implementing
+        height-for-width layout strategy in the future.
+
+        Notice that implementing this method or even implementing both it and
+        DoGetBestClientWidth() doesn't replace overriding DoGetBestClientSize(),
+        i.e. you still need to implement the latter as well in order to provide
+        the best size when neither width nor height are constrained.
+
+        By default returns ::wxDefaultCoord meaning that the vertical component
+        of DoGetBestClientSize() return value should be used.
+
+        @since 2.9.4
+     */
+    virtual int DoGetBestClientHeight(int width) const;
+
+    /**
+        Override this method to implement width-for-height best size
+        calculation.
+
+        This method is exactly the same as DoGetBestClientHeight() except that
+        it determines the width assuming the height is fixed instead of vice
+        versa.
+
+        @since 2.9.4
+     */
+    virtual int DoGetBestClientWidth(int height) const;

 
     /**
         Sets the initial window size if none is given (i.e. at least one of the
         components of the size passed to ctor/Create() is wxDefaultCoord).
 
     /**
         Sets the initial window size if none is given (i.e. at least one of the
         components of the size passed to ctor/Create() is wxDefaultCoord).

-        @deprecated @todo provide deprecation description
+        @deprecated Use SetInitialSize() instead.

     */
     virtual void SetInitialBestSize(const wxSize& size);
 
     */
     virtual void SetInitialBestSize(const wxSize& size);