X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f029f1d15b04dd70522008cdf105be87140fabc6..cde23b64b5194f0d71cf16c85ea33d28419c815f:/include/wx/window.h diff --git a/include/wx/window.h b/include/wx/window.h index 218e2ce79e..9218362735 100644 --- a/include/wx/window.h +++ b/include/wx/window.h @@ -87,7 +87,7 @@ class WXDLLIMPEXP_FWD_CORE wxAccessible; // ---------------------------------------------------------------------------- // struct containing all the visual attributes of a control -struct WXDLLEXPORT wxVisualAttributes +struct WXDLLIMPEXP_CORE wxVisualAttributes { // the font used for control label/text inside it wxFont font; @@ -118,25 +118,40 @@ enum wxWindowVariant // valid values for Show/HideWithEffect() enum wxShowEffect { - wxSHOW_EFFECT_ROLL, - wxSHOW_EFFECT_SLIDE, + wxSHOW_EFFECT_NONE, + wxSHOW_EFFECT_ROLL_TO_LEFT, + wxSHOW_EFFECT_ROLL_TO_RIGHT, + wxSHOW_EFFECT_ROLL_TO_TOP, + wxSHOW_EFFECT_ROLL_TO_BOTTOM, + wxSHOW_EFFECT_SLIDE_TO_LEFT, + wxSHOW_EFFECT_SLIDE_TO_RIGHT, + wxSHOW_EFFECT_SLIDE_TO_TOP, + wxSHOW_EFFECT_SLIDE_TO_BOTTOM, wxSHOW_EFFECT_BLEND, wxSHOW_EFFECT_EXPAND, wxSHOW_EFFECT_MAX }; +// flags for SendSizeEvent() +enum +{ + wxSEND_EVENT_POST = 1 +}; + // ---------------------------------------------------------------------------- // (pseudo)template list classes // ---------------------------------------------------------------------------- -WX_DECLARE_LIST_3(wxWindow, wxWindowBase, wxWindowList, wxWindowListNode, class WXDLLEXPORT); +WX_DECLARE_LIST_3(wxWindow, wxWindowBase, wxWindowList, wxWindowListNode, class WXDLLIMPEXP_CORE); // ---------------------------------------------------------------------------- // global variables // ---------------------------------------------------------------------------- -extern WXDLLEXPORT_DATA(wxWindowList) wxTopLevelWindows; -extern WXDLLIMPEXP_DATA_CORE(wxList) wxPendingDelete; +extern WXDLLIMPEXP_DATA_CORE(wxWindowList) wxTopLevelWindows; + +// declared here for compatibility only, main declaration is in wx/app.h +extern WXDLLIMPEXP_DATA_BASE(wxList) wxPendingDelete; // ---------------------------------------------------------------------------- // wxWindowBase is the base class for all GUI controls/widgets, this is the public @@ -149,7 +164,7 @@ extern WXDLLIMPEXP_DATA_CORE(wxList) wxPendingDelete; // temporarily switches event handlers). // ---------------------------------------------------------------------------- -class WXDLLEXPORT wxWindowBase : public wxEvtHandler +class WXDLLIMPEXP_CORE wxWindowBase : public wxEvtHandler { public: // creating the window @@ -159,15 +174,6 @@ public: // Create() wxWindowBase() ; - // pseudo ctor (can't be virtual, called from ctor) - bool CreateBase(wxWindowBase *parent, - wxWindowID winid, - const wxPoint& pos = wxDefaultPosition, - const wxSize& size = wxDefaultSize, - long style = 0, - const wxValidator& validator = wxDefaultValidator, - const wxString& name = wxPanelNameStr); - virtual ~wxWindowBase(); // deleting the window @@ -187,7 +193,7 @@ public: bool DestroyChildren(); // is the window being deleted? - bool IsBeingDeleted() const { return m_isBeingDeleted; } + bool IsBeingDeleted() const; // window attributes // ----------------- @@ -362,12 +368,8 @@ public: // get the size best suited for the window (in fact, minimal // acceptable size using which it will still look "nice" in // most situations) - wxSize GetBestSize() const - { - if (m_bestSizeCache.IsFullySpecified()) - return m_bestSizeCache; - return DoGetBestSize(); - } + wxSize GetBestSize() const; + void GetBestSize(int *w, int *h) const { wxSize s = GetBestSize(); @@ -390,7 +392,7 @@ public: // This function will merge the window's best size into the window's // minimum size, giving priority to the min size components, and // returns the results. - wxSize GetEffectiveMinSize() const; + virtual wxSize GetEffectiveMinSize() const; wxDEPRECATED( wxSize GetBestFittingSize() const ); // replaced by GetEffectiveMinSize wxDEPRECATED( wxSize GetAdjustedMinSize() const ); // replaced by GetEffectiveMinSize @@ -446,8 +448,14 @@ public: // Call these to override what GetBestSize() returns. This // method is only virtual because it is overriden in wxTLW // as a different API for SetSizeHints(). - virtual void SetMinSize(const wxSize& minSize) { m_minWidth = minSize.x; m_minHeight = minSize.y; } - virtual void SetMaxSize(const wxSize& maxSize) { m_maxWidth = maxSize.x; m_maxHeight = maxSize.y; } + virtual void SetMinSize(const wxSize& minSize); + virtual void SetMaxSize(const wxSize& maxSize); + + // Like Set*Size, but for client, not window, size + virtual void SetMinClientSize(const wxSize& size) + { SetMinSize(ClientToWindowSize(size)); } + virtual void SetMaxClientSize(const wxSize& size) + { SetMaxSize(ClientToWindowSize(size)); } // Override these methods to impose restrictions on min/max size. // The easier way is to call SetMinSize() and SetMaxSize() which @@ -455,6 +463,12 @@ public: virtual wxSize GetMinSize() const { return wxSize(m_minWidth, m_minHeight); } virtual wxSize GetMaxSize() const { return wxSize(m_maxWidth, m_maxHeight); } + // Like Get*Size, but for client, not window, size + virtual wxSize GetMinClientSize() const + { return WindowToClientSize(GetMinSize()); } + virtual wxSize GetMaxClientSize() const + { return WindowToClientSize(GetMaxSize()); } + // Get the min and max values one by one int GetMinWidth() const { return GetMinSize().x; } int GetMinHeight() const { return GetMinSize().y; } @@ -505,13 +519,40 @@ public: virtual wxSize GetWindowBorderSize() const; // wxSizer and friends use this to give a chance to a component to recalc - // its min size once one of the final size components is known. Override - // this function when that is useful (such as for wxStaticText which can + // its min size once one of the final size components is known. Override + // this function when that is useful (such as for wxStaticText which can // stretch over several lines). Parameter availableOtherDir - // tells the item how much more space there is available in the opposite + // 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; } + virtual bool + InformFirstDirection(int WXUNUSED(direction), + int WXUNUSED(size), + int WXUNUSED(availableOtherDir)) + { + return false; + } + + // sends a size event to the window using its current size -- this has an + // effect of refreshing the window layout + // + // by default the event is sent, i.e. processed immediately, but if flags + // value includes wxSEND_EVENT_POST then it's posted, i.e. only schedule + // for later processing + virtual void SendSizeEvent(int flags = 0); + + // this is a safe wrapper for GetParent()->SendSizeEvent(): it checks that + // we have a parent window and it's not in process of being deleted + // + // this is used by controls such as tool/status bars changes to which must + // also result in parent re-layout + void SendSizeEventToParent(int flags = 0); + + // this is a more readable synonym for SendSizeEvent(wxSEND_EVENT_POST) + void PostSizeEvent() { SendSizeEvent(wxSEND_EVENT_POST); } + + // this is the same as SendSizeEventToParent() but using PostSizeEvent() + void PostSizeEventToParent() { SendSizeEventToParent(wxSEND_EVENT_POST); } + // window state // ------------ @@ -526,27 +567,15 @@ public: // // timeout specifies how long the animation should take, in ms, the // default value of 0 means to use the default (system-dependent) value - // - // direction is only used with wxSHOW_EFFECT_ROLL and SLIDE values - virtual bool ShowWithEffect(wxShowEffect effect, - unsigned timeout = 0, - wxDirection dir = wxBOTTOM) + virtual bool ShowWithEffect(wxShowEffect WXUNUSED(effect), + unsigned WXUNUSED(timeout) = 0) { - wxUnusedVar(effect); - wxUnusedVar(timeout); - wxUnusedVar(dir); - return Show(); } - virtual bool HideWithEffect(wxShowEffect effect, - unsigned timeout = 0, - wxDirection dir = wxBOTTOM) + virtual bool HideWithEffect(wxShowEffect WXUNUSED(effect), + unsigned WXUNUSED(timeout) = 0) { - wxUnusedVar(effect); - wxUnusedVar(timeout); - wxUnusedVar(dir); - return Hide(); } @@ -580,7 +609,7 @@ public: virtual void SetWindowStyleFlag( long style ) { m_windowStyle = style; } virtual long GetWindowStyleFlag() const { return m_windowStyle; } - // just some (somewhat shorter) synonims + // just some (somewhat shorter) synonyms void SetWindowStyle( long style ) { SetWindowStyleFlag(style); } long GetWindowStyle() const { return GetWindowStyleFlag(); } @@ -753,7 +782,7 @@ public: // replace the event handler (allows to completely subclass the // window) - void SetEventHandler( wxEvtHandler *handler ) { m_eventHandler = handler; } + void SetEventHandler( wxEvtHandler *handler ); // push/pop event handler: allows to chain a custom event handler to // alreasy existing ones @@ -767,13 +796,51 @@ public: // be there) bool RemoveEventHandler(wxEvtHandler *handler); - // 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+ - // callback) when the exception wouldn't correctly propagate to - // wxEventLoop. + // Process an event by calling GetEventHandler()->ProcessEvent(): this + // is a straightforward replacement for ProcessEvent() itself which + // shouldn't be used directly with windows as it doesn't take into + // account any event handlers associated with the window + bool ProcessWindowEvent(wxEvent& event) + { return GetEventHandler()->ProcessEvent(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+ + // callback) when the exception wouldn't correctly propagate to + // wxEventLoop. bool HandleWindowEvent(wxEvent& event) const; + // disable wxEvtHandler double-linked list mechanism: + virtual void SetNextHandler(wxEvtHandler *handler); + virtual void SetPreviousHandler(wxEvtHandler *handler); + + + // Watcom doesn't allow reducing access with using access declaration, see + // #10749 +#ifndef __WATCOMC__ +protected: + + // NOTE: we change the access specifier of the following wxEvtHandler functions + // so that the user won't be able to call them directly. + // Calling wxWindow::ProcessEvent in fact only works when there are NO + // event handlers pushed on the window. + // To ensure correct operation, instead of wxWindow::ProcessEvent + // you must always call wxWindow::GetEventHandler()->ProcessEvent() + // or HandleWindowEvent(). + // The same holds for all other wxEvtHandler functions. + + using wxEvtHandler::ProcessEvent; +#if wxUSE_THREADS + using wxEvtHandler::ProcessThreadEvent; +#endif + using wxEvtHandler::SafelyProcessEvent; + using wxEvtHandler::ProcessPendingEvents; + using wxEvtHandler::AddPendingEvent; + using wxEvtHandler::QueueEvent; +#endif // __WATCOMC__ + +public: + // validators // ---------- @@ -819,16 +886,16 @@ public: // dialog units translations // ------------------------- - wxPoint ConvertPixelsToDialog( const wxPoint& pt ); - wxPoint ConvertDialogToPixels( const wxPoint& pt ); - wxSize ConvertPixelsToDialog( const wxSize& sz ) + wxPoint ConvertPixelsToDialog( const wxPoint& pt ) const; + wxPoint ConvertDialogToPixels( const wxPoint& pt ) const; + wxSize ConvertPixelsToDialog( const wxSize& sz ) const { wxPoint pt(ConvertPixelsToDialog(wxPoint(sz.x, sz.y))); return wxSize(pt.x, pt.y); } - wxSize ConvertDialogToPixels( const wxSize& sz ) + wxSize ConvertDialogToPixels( const wxSize& sz ) const { wxPoint pt(ConvertDialogToPixels(wxPoint(sz.x, sz.y))); @@ -876,16 +943,10 @@ public: virtual void ClearBackground(); // freeze the window: don't redraw it until it is thawed - void Freeze() { if ( !m_freezeCount++ ) DoFreeze(); } + void Freeze(); // thaw the window: redraw it after it had been frozen - void Thaw() - { - wxASSERT_MSG( m_freezeCount, "Thaw() without matching Freeze()" ); - - if ( !--m_freezeCount ) - DoThaw(); - } + void Thaw(); // return true if window had been frozen and not unthawed yet bool IsFrozen() const { return m_freezeCount != 0; } @@ -965,9 +1026,10 @@ public: wxColour GetForegroundColour() const; // Set/get the background style. - // Pass one of wxBG_STYLE_SYSTEM, wxBG_STYLE_COLOUR, wxBG_STYLE_CUSTOM - virtual bool SetBackgroundStyle(wxBackgroundStyle style) { m_backgroundStyle = style; return true; } - virtual wxBackgroundStyle GetBackgroundStyle() const { return m_backgroundStyle; } + virtual bool SetBackgroundStyle(wxBackgroundStyle style) + { m_backgroundStyle = style; return true; } + wxBackgroundStyle GetBackgroundStyle() const + { return m_backgroundStyle; } // returns true if the control has "transparent" areas such as a // wxStaticText and wxCheckBox and the background should be adapted @@ -1002,12 +1064,14 @@ public: // get the width/height/... of the text using current or specified // font - virtual void GetTextExtent(const wxString& string, - int *x, int *y, - int *descent = (int *) NULL, - int *externalLeading = (int *) NULL, - const wxFont *theFont = (const wxFont *) NULL) - const = 0; + void GetTextExtent(const wxString& string, + int *x, int *y, + int *descent = NULL, + int *externalLeading = NULL, + const wxFont *font = NULL) const + { + DoGetTextExtent(string, x, y, descent, externalLeading, font); + } wxSize GetTextExtent(const wxString& string) const { @@ -1088,13 +1152,16 @@ public: // scrollbars // ---------- - // does the window have the scrollbar for this orientation? - bool HasScrollbar(int orient) const + // can the window have the scrollbar in this orientation? + bool CanScroll(int orient) const { return (m_windowStyle & (orient == wxHORIZONTAL ? wxHSCROLL : wxVSCROLL)) != 0; } + // does the window have the scrollbar in this orientation? + bool HasScrollbar(int orient) const; + // configure the window scrollbars virtual void SetScrollbar( int orient, int pos, @@ -1108,7 +1175,7 @@ public: // scroll window to the specified position virtual void ScrollWindow( int dx, int dy, - const wxRect* rect = (wxRect *) NULL ) = 0; + const wxRect* rect = NULL ) = 0; // scrolls window by line/page: note that not all controls support this // @@ -1144,9 +1211,13 @@ public: #if wxUSE_HELP // associate this help text with this window void SetHelpText(const wxString& text); - // associate this help text with all windows with the same id as this - // one - void SetHelpTextForId(const wxString& text); + +#if WXWIN_COMPATIBILITY_2_8 + // Associate this help text with all windows with the same id as this one. + // Don't use this, do wxHelpProvider::Get()->AddHelp(id, text); + wxDEPRECATED( void SetHelpTextForId(const wxString& text) ); +#endif // WXWIN_COMPATIBILITY_2_8 + // get the help string associated with the given position in this window // // notice that pt may be invalid if event origin is keyboard or unknown @@ -1171,16 +1242,20 @@ public: #if wxUSE_TOOLTIPS // the easiest way to set a tooltip for a window is to use this method void SetToolTip( const wxString &tip ); - // attach a tooltip to the window + // attach a tooltip to the window, pointer can be NULL to remove + // existing tooltip void SetToolTip( wxToolTip *tip ) { DoSetToolTip(tip); } + // more readable synonym for SetToolTip(NULL) + void UnsetToolTip() { SetToolTip(NULL); } // get the associated tooltip or NULL if none wxToolTip* GetToolTip() const { return m_tooltip; } - wxString GetToolTipText() const ; -#else + wxString GetToolTipText() const; +#else // !wxUSE_TOOLTIPS // make it much easier to compile apps in an environment // that doesn't support tooltips, such as PocketPC - inline void SetToolTip( const wxString & WXUNUSED(tip) ) {} -#endif // wxUSE_TOOLTIPS + void SetToolTip(const wxString & WXUNUSED(tip)) { } + void UnsetToolTip() { } +#endif // wxUSE_TOOLTIPS/!wxUSE_TOOLTIPS // drag and drop // ------------- @@ -1189,6 +1264,16 @@ public: // NULL; it's owned by the window and will be deleted by it) virtual void SetDropTarget( wxDropTarget *dropTarget ) = 0; virtual wxDropTarget *GetDropTarget() const { return m_dropTarget; } + + // Accept files for dragging + virtual void DragAcceptFiles(bool accept) +#ifdef __WXMSW__ + // it does have common implementation but not for MSW which has its own + // native version of it + = 0 +#endif // __WXMSW__ + ; + #endif // wxUSE_DRAG_AND_DROP // constraints and sizers @@ -1326,10 +1411,34 @@ public: // used only by Windows virtual bool CanApplyThemeBorder() const { return true; } + // returns the main window of composite control; this is the window + // that FindFocus returns if the focus is in one of composite control's + // windows + virtual wxWindow *GetMainWindowOfCompositeControl() + { return (wxWindow*)this; } + protected: + // helper for the derived class Create() methods: the first overload, with + // validator parameter, should be used for child windows while the second + // one is used for top level ones + bool CreateBase(wxWindowBase *parent, + wxWindowID winid, + const wxPoint& pos = wxDefaultPosition, + const wxSize& size = wxDefaultSize, + long style = 0, + const wxValidator& validator = wxDefaultValidator, + const wxString& name = wxPanelNameStr); + + bool CreateBase(wxWindowBase *parent, + wxWindowID winid, + const wxPoint& pos, + const wxSize& size, + long style, + const wxString& name); + // event handling specific to wxWindow - virtual bool TryValidator(wxEvent& event); - virtual bool TryParent(wxEvent& event); + virtual bool TryBefore(wxEvent& event); + virtual bool TryAfter(wxEvent& event); enum WindowOrder { @@ -1351,15 +1460,10 @@ protected: void SatisfyConstraints(); #endif // wxUSE_CONSTRAINTS - // Send the wxWindowDestroyEvent + // Send the wxWindowDestroyEvent if not done yet and sets m_isBeingDeleted + // to true void SendDestroyEvent(); - // returns the main window of composite control; this is the window - // that FindFocus returns if the focus is in one of composite control's - // windows - virtual wxWindow *GetMainWindowOfCompositeControl() - { return (wxWindow*)this; } - // this method should be implemented to use operating system specific code // to really enable/disable the widget, it will only be called when we // really need to enable/disable window and so no additional checks on the @@ -1516,6 +1620,13 @@ protected: // overloaded Something()s in terms of DoSomething() which will be the // only one to be virtual. + // text extent + virtual void DoGetTextExtent(const wxString& string, + int *x, int *y, + int *descent = NULL, + int *externalLeading = NULL, + const wxFont *font = NULL) const = 0; + // coordinates translation virtual void DoClientToScreen( int *x, int *y ) const = 0; virtual void DoScreenToClient( int *x, int *y ) const = 0; @@ -1537,6 +1648,11 @@ protected: // same size as it would have after a call to Fit() virtual wxSize DoGetBestSize() const; + // this method can be overridden instead of DoGetBestSize() if it computes + // the best size of the client area of the window only, excluding borders + // (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 // wants to change how SetSize() or Move() works - it is called by all // versions of these functions in the base class @@ -1551,6 +1667,14 @@ protected: int maxW, int maxH, int incW, int incH ); + // return the total size of the window borders, i.e. the sum of the widths + // 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 + virtual wxSize DoGetBorderSize() const; + // move the window to the specified location and resize it: this is called // from both DoSetSize() and DoSetClientSize() and would usually just // reposition this window except for composite controls which will want to @@ -1600,13 +1724,21 @@ private: void NotifyWindowOnEnableChange(bool enabled); #if wxUSE_MENUS - // temporary event handler used by GetPopupMenuSelectionFromUser() + // temporary event handlers used by GetPopupMenuSelectionFromUser() void InternalOnPopupMenu(wxCommandEvent& event); + void InternalOnPopupMenuUpdate(wxUpdateUIEvent& event); // implementation of the public GetPopupMenuSelectionFromUser() method int DoGetPopupMenuSelectionFromUser(wxMenu& menu, int x, int y); #endif // wxUSE_MENUS + // layout the window children when its size changes unless this was + // explicitly disabled with SetAutoLayout(false) + void InternalOnSize(wxSizeEvent& event); + + // 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; @@ -1623,7 +1755,7 @@ private: DECLARE_ABSTRACT_CLASS(wxWindowBase) - DECLARE_NO_COPY_CLASS(wxWindowBase) + wxDECLARE_NO_COPY_CLASS(wxWindowBase); DECLARE_EVENT_TABLE() }; @@ -1705,7 +1837,7 @@ inline void wxWindowBase::SetInitialBestSize(const wxSize& size) #else // !wxUniv #define wxWindowMac wxWindow #endif // wxUniv - #include "wx/mac/window.h" + #include "wx/osx/window.h" #elif defined(__WXCOCOA__) #ifdef __WXUNIVERSAL__ #define wxWindowNative wxWindowCocoa @@ -1739,7 +1871,7 @@ inline void wxWindowBase::SetInitialBestSize(const wxSize& size) inline wxWindow *wxWindowBase::GetGrandParent() const { - return m_parent ? m_parent->GetParent() : (wxWindow *)NULL; + return m_parent ? m_parent->GetParent() : NULL; } // ---------------------------------------------------------------------------- @@ -1748,16 +1880,16 @@ inline wxWindow *wxWindowBase::GetGrandParent() const // Find the wxWindow at the current mouse position, also returning the mouse // position. -extern WXDLLEXPORT wxWindow* wxFindWindowAtPointer(wxPoint& pt); +extern WXDLLIMPEXP_CORE wxWindow* wxFindWindowAtPointer(wxPoint& pt); // Get the current mouse position. -extern WXDLLEXPORT wxPoint wxGetMousePosition(); +extern WXDLLIMPEXP_CORE wxPoint wxGetMousePosition(); // get the currently active window of this application or NULL -extern WXDLLEXPORT wxWindow *wxGetActiveWindow(); +extern WXDLLIMPEXP_CORE wxWindow *wxGetActiveWindow(); // get the (first) top level parent window -WXDLLEXPORT wxWindow* wxGetTopLevelParent(wxWindow *win); +WXDLLIMPEXP_CORE wxWindow* wxGetTopLevelParent(wxWindow *win); #if WXWIN_COMPATIBILITY_2_6 // deprecated (doesn't start with 'wx' prefix), use wxWindow::NewControlId() @@ -1770,7 +1902,7 @@ WXDLLEXPORT wxWindow* wxGetTopLevelParent(wxWindow *win); // accessible object for windows // ---------------------------------------------------------------------------- -class WXDLLEXPORT wxWindowAccessible: public wxAccessible +class WXDLLIMPEXP_CORE wxWindowAccessible: public wxAccessible { public: wxWindowAccessible(wxWindow* win): wxAccessible(win) { if (win) win->SetAccessible(this); }