Don't define __STRICT_ANSI__, we should build both with and without it.

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

diff --git a/include/wx/window.h b/include/wx/window.h
index 1527a1e0de728fa81afd3133103054800e009500..199c4b7ef3d76b29220b7fd8ab05ef909609b648 100644 (file)
--- a/include/wx/window.h
+++ b/include/wx/window.h
@@ -4,7 +4,6 @@
 // Author:      Vadim Zeitlin
 // Modified by: Ron Lee
 // Created:     01/02/97
 // Author:      Vadim Zeitlin
 // Modified by: Ron Lee
 // Created:     01/02/97

-// RCS-ID:      $Id$

 // Copyright:   (c) Vadim Zeitlin
 // Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 // Copyright:   (c) Vadim Zeitlin
 // Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////


@@ -379,6 +378,13 @@ public:
             *h = s.y;
     }
 
             *h = s.y;
     }
 

+        // Determine the best size in the other direction if one of them is
+        // fixed. This is used with windows that can wrap their contents and
+        // returns input-independent best size for the others.
+    int GetBestHeight(int width) const;
+    int GetBestWidth(int height) const;
+
+

     void SetScrollHelper( wxScrollHelper *sh )   { m_scrollHelper = sh; }
     wxScrollHelper *GetScrollHelper()            { return m_scrollHelper; }
 
     void SetScrollHelper( wxScrollHelper *sh )   { m_scrollHelper = sh; }
     wxScrollHelper *GetScrollHelper()            { return m_scrollHelper; }
 


@@ -408,7 +414,7 @@ public:
     void Centre(int dir = wxBOTH) { DoCentre(dir); }
     void Center(int dir = wxBOTH) { DoCentre(dir); }
 
     void Centre(int dir = wxBOTH) { DoCentre(dir); }
     void Center(int dir = wxBOTH) { DoCentre(dir); }
 

-        // centre with respect to the the parent window
+        // centre with respect to the parent window

     void CentreOnParent(int dir = wxBOTH) { DoCentre(dir); }
     void CenterOnParent(int dir = wxBOTH) { CentreOnParent(dir); }
 
     void CentreOnParent(int dir = wxBOTH) { DoCentre(dir); }
     void CenterOnParent(int dir = wxBOTH) { CentreOnParent(dir); }
 


@@ -446,7 +452,7 @@ public:
 
 
         // Call these to override what GetBestSize() returns. This
 
 
         // Call these to override what GetBestSize() returns. This

-        // method is only virtual because it is overriden in wxTLW
+        // method is only virtual because it is overridden in wxTLW

         // as a different API for SetSizeHints().
     virtual void SetMinSize(const wxSize& minSize);
     virtual void SetMaxSize(const wxSize& maxSize);
         // as a different API for SetSizeHints().
     virtual void SetMinSize(const wxSize& minSize);
     virtual void SetMaxSize(const wxSize& maxSize);


@@ -480,7 +486,7 @@ public:
         // windows this is just the client area of the window, but for
         // some like scrolled windows it is more or less independent of
         // the screen window size.  You may override the DoXXXVirtual
         // windows this is just the client area of the window, but for
         // some like scrolled windows it is more or less independent of
         // the screen window size.  You may override the DoXXXVirtual

-        // methods below for classes where that is is the case.
+        // methods below for classes where that is the case.

 
     void SetVirtualSize( const wxSize &size ) { DoSetVirtualSize( size.x, size.y ); }
     void SetVirtualSize( int x, int y ) { DoSetVirtualSize( x, y ); }
 
     void SetVirtualSize( const wxSize &size ) { DoSetVirtualSize( size.x, size.y ); }
     void SetVirtualSize( int x, int y ) { DoSetVirtualSize( x, y ); }


@@ -514,6 +520,11 @@ public:
         return wxSize( wxMax( client.x, best.x ), wxMax( client.y, best.y ) );
     }
 
         return wxSize( wxMax( client.x, best.x ), wxMax( client.y, best.y ) );
     }
 

+    // returns the magnification of the content of this window
+    // eg 2.0 for a window on a retina screen
+    virtual double GetContentScaleFactor() const
+    { return 1.0; }
+    

     // return the size of the left/right and top/bottom borders in x and y
     // components of the result respectively
     virtual wxSize GetWindowBorderSize() const;
     // return the size of the left/right and top/bottom borders in x and y
     // components of the result respectively
     virtual wxSize GetWindowBorderSize() const;


@@ -525,12 +536,7 @@ public:
     // tells the item how much more space there is available in the opposite
     // direction (-1 if unknown).
     virtual bool
     // tells the item how much more space there is available in the opposite
     // direction (-1 if unknown).
     virtual bool

-    InformFirstDirection(int WXUNUSED(direction),
-                         int WXUNUSED(size),
-                         int WXUNUSED(availableOtherDir))
-    {
-        return false;
-    }
+    InformFirstDirection(int direction, int size, int availableOtherDir);

 
     // sends a size event to the window using its current size -- this has an
     // effect of refreshing the window layout
 
     // sends a size event to the window using its current size -- this has an
     // effect of refreshing the window layout


@@ -553,6 +559,43 @@ public:
     // this is the same as SendSizeEventToParent() but using PostSizeEvent()
     void PostSizeEventToParent() { SendSizeEventToParent(wxSEND_EVENT_POST); }
 
     // this is the same as SendSizeEventToParent() but using PostSizeEvent()
     void PostSizeEventToParent() { SendSizeEventToParent(wxSEND_EVENT_POST); }
 

+    // These functions should be used before repositioning the children of
+    // this window to reduce flicker or, in MSW case, even avoid display
+    // corruption in some situations (so they're more than just optimization).
+    //
+    // EndRepositioningChildren() should be called if and only if
+    // BeginRepositioningChildren() returns true. To ensure that this is always
+    // done automatically, use ChildrenRepositioningGuard class below.
+    virtual bool BeginRepositioningChildren() { return false; }
+    virtual void EndRepositioningChildren() { }
+
+    // A simple helper which ensures that EndRepositioningChildren() is called
+    // from its dtor if and only if calling BeginRepositioningChildren() from
+    // the ctor returned true.
+    class ChildrenRepositioningGuard
+    {
+    public:
+        // Notice that window can be NULL here, for convenience. In this case
+        // this class simply doesn't do anything.
+        wxEXPLICIT ChildrenRepositioningGuard(wxWindowBase* win)
+            : m_win(win),
+              m_callEnd(win && win->BeginRepositioningChildren())
+        {
+        }
+
+        ~ChildrenRepositioningGuard()
+        {
+            if ( m_callEnd )
+                m_win->EndRepositioningChildren();
+        }
+
+    private:
+        wxWindowBase* const m_win;
+        const bool m_callEnd;
+
+        wxDECLARE_NO_COPY_CLASS(ChildrenRepositioningGuard);
+    };
+

 
     // window state
     // ------------
 
     // window state
     // ------------


@@ -628,9 +671,10 @@ public:
 
     bool HasExtraStyle(int exFlag) const { return (m_exStyle & exFlag) != 0; }
 
 
     bool HasExtraStyle(int exFlag) const { return (m_exStyle & exFlag) != 0; }
 

+#if WXWIN_COMPATIBILITY_2_8

         // make the window modal (all other windows unresponsive)
         // make the window modal (all other windows unresponsive)

-    virtual void MakeModal(bool modal = true);
-
+    wxDEPRECATED( virtual void MakeModal(bool modal = true) );
+#endif

 
     // (primitive) theming support
     // ---------------------------
 
     // (primitive) theming support
     // ---------------------------


@@ -679,8 +723,13 @@ public:
     virtual bool AcceptsFocusFromKeyboard() const { return AcceptsFocus(); }
 
 
     virtual bool AcceptsFocusFromKeyboard() const { return AcceptsFocus(); }
 
 

-        // this is mostly a helper for the various functions using it below
-    bool CanBeFocused() const { return IsShown() && IsEnabled(); }
+        // Can this window be focused right now, in its current state? This
+        // shouldn't be called at all if AcceptsFocus() returns false.
+        //
+        // It is a convenient helper for the various functions using it below
+        // but also a hook allowing to override the default logic for some rare
+        // cases (currently just wxRadioBox in wxMSW) when it's inappropriate.
+    virtual bool CanBeFocused() const { return IsShown() && IsEnabled(); }

 
         // can this window itself have focus?
     bool IsFocusable() const { return AcceptsFocus() && CanBeFocused(); }
 
         // can this window itself have focus?
     bool IsFocusable() const { return AcceptsFocus() && CanBeFocused(); }


@@ -744,8 +793,12 @@ public:
         // is this window a top level one?
     virtual bool IsTopLevel() const;
 
         // is this window a top level one?
     virtual bool IsTopLevel() const;
 

+        // is this window a child or grand child of this one (inside the same
+        // TLW)?
+    bool IsDescendant(wxWindowBase* win) const;
+

         // it doesn't really change parent, use Reparent() instead
         // it doesn't really change parent, use Reparent() instead

-    void SetParent( wxWindowBase *parent ) { m_parent = (wxWindow *)parent; }
+    void SetParent( wxWindowBase *parent );

         // change the real parent of this window, return true if the parent
         // was changed, false otherwise (error or newParent == oldParent)
     virtual bool Reparent( wxWindowBase *newParent );
         // change the real parent of this window, return true if the parent
         // was changed, false otherwise (error or newParent == oldParent)
     virtual bool Reparent( wxWindowBase *newParent );


@@ -1034,8 +1087,7 @@ public:
     wxColour GetForegroundColour() const;
 
         // Set/get the background style.
     wxColour GetForegroundColour() const;
 
         // Set/get the background style.

-    virtual bool SetBackgroundStyle(wxBackgroundStyle style)
-        { m_backgroundStyle = style; return true; }
+    virtual bool SetBackgroundStyle(wxBackgroundStyle style);

     wxBackgroundStyle GetBackgroundStyle() const
         { return m_backgroundStyle; }
 
     wxBackgroundStyle GetBackgroundStyle() const
         { return m_backgroundStyle; }
 


@@ -1044,6 +1096,13 @@ public:
         // from a parent window
     virtual bool HasTransparentBackground() { return false; }
 
         // from a parent window
     virtual bool HasTransparentBackground() { return false; }
 

+        // Returns true if background transparency is supported for this
+        // window, i.e. if calling SetBackgroundStyle(wxBG_STYLE_TRANSPARENT)
+        // has a chance of succeeding. If reason argument is non-NULL, returns a
+        // user-readable explanation of why it isn't supported if the return
+        // value is false.
+    virtual bool IsTransparentBackgroundSupported(wxString* reason = NULL) const;
+

         // set/retrieve the font for the window (SetFont() returns true if the
         // font really changed)
     virtual bool SetFont(const wxFont& font) = 0;
         // set/retrieve the font for the window (SetFont() returns true if the
         // font really changed)
     virtual bool SetFont(const wxFont& font) = 0;


@@ -1162,11 +1221,7 @@ public:
     // ----------
 
         // can the window have the scrollbar in this orientation?
     // ----------
 
         // can the window have the scrollbar in this orientation?

-    bool CanScroll(int orient) const
-    {
-        return (m_windowStyle &
-                (orient == wxHORIZONTAL ? wxHSCROLL : wxVSCROLL)) != 0;
-    }
+    virtual bool CanScroll(int orient) const;

 
         // does the window have the scrollbar in this orientation?
     bool HasScrollbar(int orient) const;
 
         // does the window have the scrollbar in this orientation?
     bool HasScrollbar(int orient) const;


@@ -1259,6 +1314,15 @@ public:
         // get the associated tooltip or NULL if none
     wxToolTip* GetToolTip() const { return m_tooltip; }
     wxString GetToolTipText() const;
         // get the associated tooltip or NULL if none
     wxToolTip* GetToolTip() const { return m_tooltip; }
     wxString GetToolTipText() const;

+
+    // Use the same tool tip as the given one (which can be NULL to indicate
+    // that no tooltip should be used) for this window. This is currently only
+    // used by wxCompositeWindow::DoSetToolTip() implementation and is not part
+    // of the public wx API.
+    //
+    // Returns true if tip was valid and we copied it or false if it was NULL
+    // and we reset our own tooltip too.
+    bool CopyToolTip(wxToolTip *tip);

 #else // !wxUSE_TOOLTIPS
         // make it much easier to compile apps in an environment
         // that doesn't support tooltips, such as PocketPC
 #else // !wxUSE_TOOLTIPS
         // make it much easier to compile apps in an environment
         // that doesn't support tooltips, such as PocketPC


@@ -1427,6 +1491,15 @@ public:
     virtual wxWindow *GetMainWindowOfCompositeControl()
         { return (wxWindow*)this; }
 
     virtual wxWindow *GetMainWindowOfCompositeControl()
         { return (wxWindow*)this; }
 

+    // If this function returns true, keyboard navigation events shouldn't
+    // escape from it. A typical example of such "navigation domain" is a top
+    // level window because pressing TAB in one of them must not transfer focus
+    // to a different top level window. But it's not limited to them, e.g. MDI
+    // children frames are not top level windows (and their IsTopLevel()
+    // returns false) but still are self-contained navigation domains as well.
+    virtual bool IsTopNavigationDomain() const { return false; }
+
+

 protected:
     // helper for the derived class Create() methods: the first overload, with
     // validator parameter, should be used for child windows while the second
 protected:
     // helper for the derived class Create() methods: the first overload, with
     // validator parameter, should be used for child windows while the second


@@ -1480,11 +1553,6 @@ protected:
     // widgets state are necessary
     virtual void DoEnable(bool WXUNUSED(enable)) { }
 
     // widgets state are necessary
     virtual void DoEnable(bool WXUNUSED(enable)) { }
 

-    // called when the on-screen widget state changes and provides an
-    // an opportunity for the widget to update its visual state (colours,
-    // fonts, anything else) as necessary
-    virtual void OnEnabled(bool WXUNUSED(enabled)) { }
-

 
     // the window id - a number which uniquely identifies a window among
     // its siblings unless it is wxID_ANY
 
     // the window id - a number which uniquely identifies a window among
     // its siblings unless it is wxID_ANY


@@ -1663,7 +1731,15 @@ protected:
     // (GetBorderSize() will be used to add them)
     virtual wxSize DoGetBestClientSize() const { return wxDefaultSize; }
 
     // (GetBorderSize() will be used to add them)
     virtual wxSize DoGetBestClientSize() const { return wxDefaultSize; }
 

-    // this is the virtual function to be overriden in any derived class which
+    // These two methods can be overridden to implement intelligent
+    // width-for-height and/or height-for-width best size determination for the
+    // window. By default the fixed best size is used.
+    virtual int DoGetBestClientHeight(int WXUNUSED(width)) const
+        { return wxDefaultCoord; }
+    virtual int DoGetBestClientWidth(int WXUNUSED(height)) const
+        { return wxDefaultCoord; }
+
+    // this is the virtual function to be overridden in any derived class which

     // wants to change how SetSize() or Move() works - it is called by all
     // versions of these functions in the base class
     virtual void DoSetSize(int x, int y,
     // wants to change how SetSize() or Move() works - it is called by all
     // versions of these functions in the base class
     virtual void DoSetSize(int x, int y,


@@ -1729,7 +1805,7 @@ protected:
     static void NotifyCaptureLost();
 
 private:
     static void NotifyCaptureLost();
 
 private:

-    // recursively call our own and our children OnEnabled() when the
+    // recursively call our own and our children DoEnable() when the

     // enabled/disabled status changed because a parent window had been
     // enabled/disabled
     void NotifyWindowOnEnableChange(bool enabled);
     // enabled/disabled status changed because a parent window had been
     // enabled/disabled
     void NotifyWindowOnEnableChange(bool enabled);


@@ -1750,15 +1826,6 @@ private:
     // base for dialog unit conversion, i.e. average character size
     wxSize GetDlgUnitBase() const;
 
     // base for dialog unit conversion, i.e. average character size
     wxSize GetDlgUnitBase() const;
 

-    // the stack of windows which have captured the mouse
-    static struct WXDLLIMPEXP_FWD_CORE wxWindowNext *ms_winCaptureNext;
-
-    // the window that currently has mouse capture
-    static wxWindow *ms_winCaptureCurrent;
-
-    // indicates if execution is inside CaptureMouse/ReleaseMouse
-    static bool ms_winCaptureChanging;
-

 
     // number of Freeze() calls minus the number of Thaw() calls: we're frozen
     // (i.e. not being updated) if it is positive
 
     // number of Freeze() calls minus the number of Thaw() calls: we're frozen
     // (i.e. not being updated) if it is positive


@@ -1799,14 +1866,7 @@ inline void wxWindowBase::SetInitialBestSize(const wxSize& size)
 // ----------------------------------------------------------------------------
 
 // include the declaration of the platform-specific class
 // ----------------------------------------------------------------------------
 
 // include the declaration of the platform-specific class

-#if defined(__WXPALMOS__)
-    #ifdef __WXUNIVERSAL__
-        #define wxWindowNative wxWindowPalm
-    #else // !wxUniv
-        #define wxWindowPalm wxWindow
-    #endif // wxUniv/!wxUniv
-    #include "wx/palmos/window.h"
-#elif defined(__WXMSW__)
+#if defined(__WXMSW__)

     #ifdef __WXUNIVERSAL__
         #define wxWindowNative wxWindowMSW
     #else // !wxUniv
     #ifdef __WXUNIVERSAL__
         #define wxWindowNative wxWindowMSW
     #else // !wxUniv


@@ -1836,9 +1896,6 @@ inline void wxWindowBase::SetInitialBestSize(const wxSize& size)
         #define wxWindowX11 wxWindow
     #endif // wxUniv
     #include "wx/x11/window.h"
         #define wxWindowX11 wxWindow
     #endif // wxUniv
     #include "wx/x11/window.h"

-#elif defined(__WXMGL__)
-    #define wxWindowNative wxWindowMGL
-    #include "wx/mgl/window.h"

 #elif defined(__WXDFB__)
     #define wxWindowNative wxWindowDFB
     #include "wx/dfb/window.h"
 #elif defined(__WXDFB__)
     #define wxWindowNative wxWindowDFB
     #include "wx/dfb/window.h"