X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/0e7f59ab29c1178495337e920c59e0e345628a6b..66c2bf7b1d9326fb650acfaae22ec50528cfbf7c:/include/wx/window.h diff --git a/include/wx/window.h b/include/wx/window.h index e4f15868b4..199c4b7ef3 100644 --- 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 -// RCS-ID: $Id$ // Copyright: (c) Vadim Zeitlin // Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// @@ -379,6 +378,13 @@ public: *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; } @@ -408,7 +414,7 @@ public: 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); } @@ -446,7 +452,7 @@ public: // 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); @@ -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 - // 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 ); } @@ -514,6 +520,11 @@ public: 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; @@ -525,12 +536,7 @@ public: // 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 @@ -553,6 +559,43 @@ public: // 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 // ------------ @@ -628,9 +671,10 @@ public: bool HasExtraStyle(int exFlag) const { return (m_exStyle & exFlag) != 0; } +#if WXWIN_COMPATIBILITY_2_8 // 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 // --------------------------- @@ -679,8 +723,13 @@ public: 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(); } @@ -744,8 +793,12 @@ public: // 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 - 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 ); @@ -803,6 +856,13 @@ public: bool ProcessWindowEvent(wxEvent& event) { return GetEventHandler()->ProcessEvent(event); } + // Call GetEventHandler()->ProcessEventLocally(): this should be used + // instead of calling ProcessEventLocally() directly on the window + // itself as this wouldn't take any pushed event handlers into account + // correctly + bool ProcessWindowEventLocally(wxEvent& event) + { return GetEventHandler()->ProcessEventLocally(event); } + // Process an event by calling GetEventHandler()->ProcessEvent() and // handling any exceptions thrown by event handlers. It's mostly useful // when processing wx events when called from C code (e.g. in GTK+ @@ -830,6 +890,7 @@ protected: // The same holds for all other wxEvtHandler functions. using wxEvtHandler::ProcessEvent; + using wxEvtHandler::ProcessEventLocally; #if wxUSE_THREADS using wxEvtHandler::ProcessThreadEvent; #endif @@ -1026,8 +1087,7 @@ public: 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; } @@ -1036,6 +1096,13 @@ public: // 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; @@ -1139,7 +1206,8 @@ public: // simply return the id of the selected item or wxID_NONE without // generating any events - int GetPopupMenuSelectionFromUser(wxMenu& menu, const wxPoint& pos) + int GetPopupMenuSelectionFromUser(wxMenu& menu, + const wxPoint& pos = wxDefaultPosition) { return DoGetPopupMenuSelectionFromUser(menu, pos.x, pos.y); } int GetPopupMenuSelectionFromUser(wxMenu& menu, int x, int y) { return DoGetPopupMenuSelectionFromUser(menu, x, y); } @@ -1153,11 +1221,7 @@ public: // ---------- // 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; @@ -1250,6 +1314,15 @@ public: // 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 @@ -1361,10 +1434,11 @@ public: // virtual function for implementing internal idle // behaviour - virtual void OnInternalIdle() {} + virtual void OnInternalIdle(); - // call internal idle recursively -// void ProcessInternalIdle() ; + // Send idle event to window and all subwindows + // Returns true if more idle time is requested. + virtual bool SendIdleEvents(wxIdleEvent& event); // get the handle of the window for the underlying window system: this // is only used for wxWin itself or for user code which wants to call @@ -1417,6 +1491,15 @@ public: 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 @@ -1470,11 +1553,6 @@ protected: // 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 @@ -1653,7 +1731,15 @@ protected: // (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, @@ -1671,8 +1757,9 @@ protected: // of the left and the right border in the x component of the returned size // and the sum of the heights of the top and bottom borders in the y one // - // NB: this is currently only implemented by wxMSW and wxUniv so far and - // simply asserts in the other ports + // NB: this is currently only implemented properly for wxMSW, wxGTK and + // wxUniv and doesn't behave correctly in the presence of scrollbars in + // the other ports virtual wxSize DoGetBorderSize() const; // move the window to the specified location and resize it: this is called @@ -1718,7 +1805,7 @@ protected: 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); @@ -1736,15 +1823,8 @@ private: // explicitly disabled with SetAutoLayout(false) void InternalOnSize(wxSizeEvent& event); - - // 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; + // base for dialog unit conversion, i.e. average character size + wxSize GetDlgUnitBase() const; // number of Freeze() calls minus the number of Thaw() calls: we're frozen @@ -1786,14 +1866,7 @@ inline void wxWindowBase::SetInitialBestSize(const wxSize& size) // ---------------------------------------------------------------------------- // 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 @@ -1823,9 +1896,6 @@ inline void wxWindowBase::SetInitialBestSize(const wxSize& size) #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"