// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifndef __GTKWINDOWH__
-#define __GTKWINDOWH__
+#ifndef _WX_GTK_WINDOW_H_
+#define _WX_GTK_WINDOW_H_
-// helper structure that holds class that holds GtkIMContext object and
-// some additional data needed for key events processing
-struct wxGtkIMData;
+#include "wx/dynarray.h"
-//-----------------------------------------------------------------------------
-// callback definition for inserting a window (internal)
-//-----------------------------------------------------------------------------
+#ifdef __WXGTK3__
+ typedef struct _cairo cairo_t;
+ typedef struct _GtkStyleProvider GtkStyleProvider;
+ #define WXUNUSED_IN_GTK3(x)
+#else
+ #define WXUNUSED_IN_GTK3(x) x
+#endif
+
+typedef struct _GdkEventKey GdkEventKey;
+typedef struct _GtkIMContext GtkIMContext;
+
+WX_DEFINE_EXPORTED_ARRAY_PTR(GdkWindow *, wxArrayGdkWindows);
-class WXDLLIMPEXP_CORE wxWindowGTK;
-typedef void (*wxInsertChildFunction)( wxWindowGTK*, wxWindowGTK* );
+extern "C"
+{
+
+typedef void (*wxGTKCallback)();
+
+}
//-----------------------------------------------------------------------------
// wxWindowGTK
// implement base class (pure) virtual methods
// -------------------------------------------
- virtual void SetLabel(const wxString& WXUNUSED(label)) { }
- virtual wxString GetLabel() const { return wxEmptyString; }
-
- virtual bool Destroy();
-
virtual void Raise();
virtual void Lower();
virtual bool Show( bool show = true );
- virtual bool Enable( bool enable = true );
-
- virtual void SetWindowStyleFlag( long style );
virtual bool IsRetained() const;
virtual void SetFocus();
- virtual bool AcceptsFocus() const;
+
+ // hint from wx to native GTK+ tab traversal code
+ virtual void SetCanFocus(bool canFocus);
virtual bool Reparent( wxWindowBase *newParent );
virtual bool SetFont( const wxFont &font );
virtual bool SetBackgroundStyle(wxBackgroundStyle style) ;
+ virtual bool IsTransparentBackgroundSupported(wxString* reason = NULL) const;
virtual int GetCharHeight() const;
virtual int GetCharWidth() const;
- 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;
virtual void SetScrollbar( int orient, int pos, int thumbVisible,
int range, bool refresh = true );
virtual int GetScrollThumb( int orient ) const;
virtual int GetScrollRange( int orient ) const;
virtual void ScrollWindow( int dx, int dy,
- const wxRect* rect = (wxRect *) NULL );
+ const wxRect* rect = NULL );
virtual bool ScrollLines(int lines);
virtual bool ScrollPages(int pages);
virtual void AddChild( wxWindowBase *child );
virtual void RemoveChild( wxWindowBase *child );
+ virtual void SetLayoutDirection(wxLayoutDirection dir);
+ virtual wxLayoutDirection GetLayoutDirection() const;
+ virtual wxCoord AdjustForLayoutDirection(wxCoord x,
+ wxCoord width,
+ wxCoord widthTotal) const;
+
+ virtual bool DoIsExposed( int x, int y ) const;
+ virtual bool DoIsExposed( int x, int y, int w, int h ) const;
+
+ // currently wxGTK2-only
+ void SetDoubleBuffered(bool on);
+ virtual bool IsDoubleBuffered() const;
+
+ // SetLabel(), which does nothing in wxWindow
+ virtual void SetLabel(const wxString& label) { m_gtkLabel = label; }
+ virtual wxString GetLabel() const { return m_gtkLabel; }
+
// implementation
// --------------
virtual WXWidget GetHandle() const { return m_widget; }
- // I don't want users to override what's done in idle so everything that
- // has to be done in idle time in order for wxGTK to work is done in
- // OnInternalIdle
+ // many important things are done here, this function must be called
+ // regularly
virtual void OnInternalIdle();
- // Internal represention of Update()
- void GtkUpdate();
-
// For compatibility across platforms (not in event table)
void OnIdle(wxIdleEvent& WXUNUSED(event)) {}
- // wxGTK-specific: called recursively by Enable,
- // to give widgets an opportunity to correct their colours after they
- // have been changed by Enable
- virtual void OnParentEnable( bool WXUNUSED(enable) ) {}
-
// Used by all window classes in the widget creation process.
bool PreCreation( wxWindowGTK *parent, const wxPoint &pos, const wxSize &size );
void PostCreation();
- // Internal addition of child windows. differs from class
- // to class not by using virtual functions but by using
- // the m_insertCallback.
+ // Internal addition of child windows
void DoAddChild(wxWindowGTK *child);
- // This methods sends wxPaintEvents to the window. It reads the
- // update region, breaks it up into rects and sends an event
- // for each rect. It is also responsible for background erase
- // events and NC paint events. It is called from "draw" and
- // "expose" handlers as well as from ::Update()
- void GtkSendPaintEvents();
+ // This method sends wxPaintEvents to the window.
+ // It is also responsible for background erase events.
+#ifdef __WXGTK3__
+ void GTKSendPaintEvents(cairo_t* cr);
+#else
+ void GTKSendPaintEvents(const GdkRegion* region);
+#endif
// The methods below are required because many native widgets
// are composed of several subwidgets and setting a style for
// widget where (most of) the input goes. even tooltips have
// to be applied to all subwidgets.
virtual GtkWidget* GetConnectWidget();
- virtual bool IsOwnGtkWindow( GdkWindow *window );
void ConnectWidget( GtkWidget *widget );
+ // Called from several event handlers, if it returns true or false, the
+ // same value should be immediately returned by the handler without doing
+ // anything else. If it returns -1, the handler should continue as usual
+ int GTKCallbackCommonPrologue(struct _GdkEventAny *event) const;
+
+ // Simplified form of GTKCallbackCommonPrologue() which can be used from
+ // GTK callbacks without return value to check if the event should be
+ // ignored: if this returns true, the event shouldn't be handled
+ bool GTKShouldIgnoreEvent() const;
+
+
+ // override this if some events should never be consumed by wxWidgets but
+ // but have to be left for the native control
+ //
+ // base version just calls HandleWindowEvent()
+ virtual bool GTKProcessEvent(wxEvent& event) const;
+
+ // Map GTK widget direction of the given widget to/from wxLayoutDirection
+ static wxLayoutDirection GTKGetLayout(GtkWidget *widget);
+ static void GTKSetLayout(GtkWidget *widget, wxLayoutDirection dir);
+
+ // This is called when capture is taken from the window. It will
+ // fire off capture lost events.
+ void GTKReleaseMouseAndNotify();
+
+ GdkWindow* GTKGetDrawingWindow() const;
+
+ bool GTKHandleFocusIn();
+ bool GTKHandleFocusOut();
+ void GTKHandleFocusOutNoDeferring();
+ static void GTKHandleDeferredFocusOut();
+
+ // Called when m_widget becomes realized. Derived classes must call the
+ // base class method if they override it.
+ virtual void GTKHandleRealized();
+ void GTKHandleUnrealize();
+
+protected:
+ // for controls composed of multiple GTK widgets, return true to eliminate
+ // spurious focus events if the focus changes between GTK+ children within
+ // the same wxWindow
+ virtual bool GTKNeedsToFilterSameWindowFocus() const { return false; }
+
// Override GTKWidgetNeedsMnemonic and return true if your
- // needs to set its mnemonic widget, such as for a
+ // needs to set its mnemonic widget, such as for a
// GtkLabel for wxStaticText, then do the actual
// setting of the widget inside GTKWidgetDoSetMnemonic
virtual bool GTKWidgetNeedsMnemonic() const;
virtual void GTKWidgetDoSetMnemonic(GtkWidget* w);
+ // Get the GdkWindows making part of this window: usually there will be
+ // only one of them in which case it should be returned directly by this
+ // function. If there is more than one GdkWindow (can be the case for
+ // composite widgets), return NULL and fill in the provided array
+ //
+ // This is not pure virtual for backwards compatibility but almost
+ // certainly must be overridden in any wxControl-derived class!
+ virtual GdkWindow *GTKGetWindow(wxArrayGdkWindows& windows) const;
+
+ // Check if the given window makes part of this widget
+ bool GTKIsOwnWindow(GdkWindow *window) const;
+
+public:
// Returns the default context which usually is anti-aliased
- PangoContext *GtkGetPangoDefaultContext();
+ PangoContext *GTKGetPangoDefaultContext();
#if wxUSE_TOOLTIPS
- virtual void ApplyToolTip( GtkTooltips *tips, const wxChar *tip );
+ // applies tooltip to the widget (tip must be UTF-8 encoded)
+ virtual void GTKApplyToolTip(const char* tip);
#endif // wxUSE_TOOLTIPS
- // Call after modifing the value of m_hAdjust or m_vAdjust to bring the
- // scrolbar in sync (this does not generate any wx events)
- void GtkUpdateScrollbar(int orient);
-
- // Called from GTK signal handlers. it indicates that
- // the layouting functions have to be called later on
- // (i.e. in idle time, implemented in OnInternalIdle() ).
- void GtkUpdateSize() { m_sizeSet = false; }
+ // Called when a window should delay showing itself
+ // until idle time used in Reparent().
+ void GTKShowOnIdle() { m_showOnIdle = true; }
- // fix up the mouse event coords, used by wxListBox only so far
- virtual void FixUpMouseEvent(GtkWidget * WXUNUSED(widget),
- wxCoord& WXUNUSED(x),
- wxCoord& WXUNUSED(y)) { }
+ // This is called from the various OnInternalIdle methods
+ bool GTKShowFromOnIdle();
// is this window transparent for the mouse events (as wxStaticBox is)?
- virtual bool IsTransparentForMouse() const { return false; }
+ virtual bool GTKIsTransparentForMouse() const { return false; }
- // is this a radiobutton (used by radiobutton code itself only)?
- virtual bool IsRadioButton() const { return false; }
+ // Common scroll event handling code for wxWindow and wxScrollBar
+ wxEventType GTKGetScrollEventType(GtkRange* range);
// position and size of the window
int m_x, m_y;
int m_width, m_height;
- int m_oldClientWidth,m_oldClientHeight;
+ int m_clientWidth, m_clientHeight;
+ // Whether the client size variables above are known to be correct
+ // (because they have been validated by a size-allocate) and should
+ // be used to report client size
+ bool m_useCachedClientSize;
// see the docs in src/gtk/window.cpp
GtkWidget *m_widget; // mostly the widget seen by the rest of GTK
GtkWidget *m_wxwindow; // mostly the client area as per wxWidgets
+ // label for use with GetLabelSetLabel
+ wxString m_gtkLabel;
+
+ // return true if the window is of a standard (i.e. not wxWidgets') class
+ bool IsOfStandardClass() const { return m_wxwindow == NULL; }
+
// this widget will be queried for GTK's focus events
GtkWidget *m_focusWidget;
- wxGtkIMData *m_imData;
+ void GTKDisableFocusOutEvent();
+ void GTKEnableFocusOutEvent();
+
+
+ // Input method support
+
+ // The IM context used for generic, i.e. non-native, windows.
+ //
+ // It might be a good idea to avoid allocating it unless key events from
+ // this window are really needed but currently we do it unconditionally.
+ //
+ // For native widgets (i.e. those for which IsOfStandardClass() returns
+ // true) it is NULL.
+ GtkIMContext* m_imContext;
+
+ // Pointer to the event being currently processed by the IME or NULL if not
+ // inside key handling.
+ GdkEventKey* m_imKeyEvent;
+
+ // This method generalizes gtk_im_context_filter_keypress(): for the
+ // generic windows it does just that but it's overridden by the classes
+ // wrapping native widgets that use IM themselves and so provide specific
+ // methods for accessing it such gtk_entry_im_context_filter_keypress().
+ virtual int GTKIMFilterKeypress(GdkEventKey* event) const;
+
+ // This method must be called from the derived classes "insert-text" signal
+ // handlers to check if the text is not being inserted by the IM and, if
+ // this is the case, generate appropriate wxEVT_CHAR events for it.
+ //
+ // Returns true if we did generate and process events corresponding to this
+ // text or false if we didn't handle it.
+ bool GTKOnInsertText(const char* text);
+
+ // This is just a helper of GTKOnInsertText() which is also used by GTK+
+ // "commit" signal handler.
+ bool GTKDoInsertTextFromIM(const char* text);
+
+
+ // indices for the arrays below
+ enum ScrollDir { ScrollDir_Horz, ScrollDir_Vert, ScrollDir_Max };
+
+ // horizontal/vertical scroll bar
+ GtkRange* m_scrollBar[ScrollDir_Max];
+
+ // horizontal/vertical scroll position
+ double m_scrollPos[ScrollDir_Max];
+
+ // return the scroll direction index corresponding to the given orientation
+ // (which is wxVERTICAL or wxHORIZONTAL)
+ static ScrollDir ScrollDirFromOrient(int orient)
+ {
+ return orient == wxVERTICAL ? ScrollDir_Vert : ScrollDir_Horz;
+ }
+
+ // return the orientation for the given scrolling direction
+ static int OrientFromScrollDir(ScrollDir dir)
+ {
+ return dir == ScrollDir_Horz ? wxHORIZONTAL : wxVERTICAL;
+ }
+
+ // find the direction of the given scrollbar (must be one of ours)
+ ScrollDir ScrollDirFromRange(GtkRange *range) const;
- // scrolling stuff
- GtkAdjustment *m_hAdjust,*m_vAdjust;
- float m_oldHorizontalPos;
- float m_oldVerticalPos;
+ // set the current cursor for all GdkWindows making part of this widget
+ // (see GTKGetWindow)
+ void GTKUpdateCursor(bool update_self = true, bool recurse = true);
// extra (wxGTK-specific) flags
- bool m_needParent:1; // ! wxFrame, wxDialog, wxNotebookPage ?
bool m_noExpose:1; // wxGLCanvas has its own redrawing
bool m_nativeSizeEvent:1; // wxGLCanvas sends wxSizeEvent upon "alloc_size"
- bool m_hasScrolling:1;
- bool m_hasVMT:1;
- bool m_sizeSet:1;
- bool m_resizing:1;
- bool m_acceptsFocus:1; // true if not static
- bool m_hasFocus:1; // true if == FindFocus()
bool m_isScrolling:1; // dragging scrollbar thumb?
bool m_clipPaintRegion:1; // true after ScrollWindow()
+ wxRegion m_nativeUpdateRegion; // not transformed for RTL
bool m_dirtyTabOrder:1; // tab order changed, GTK focus
// chain needs update
- bool m_needsStyleChange:1; // May not be able to change
- // background style until OnIdle
+ bool m_mouseButtonDown:1;
- // C++ has no virtual methods in the constrcutor of any class but we need
- // different methods of inserting a child window into a wxFrame,
- // wxMDIFrame, wxNotebook etc. this is the callback that will get used.
- wxInsertChildFunction m_insertCallback;
+ bool m_showOnIdle:1; // postpone showing the window until idle
protected:
// implement the base class pure virtuals
+ virtual void DoGetTextExtent(const wxString& string,
+ int *x, int *y,
+ int *descent = NULL,
+ int *externalLeading = NULL,
+ const wxFont *font = NULL) const;
virtual void DoClientToScreen( int *x, int *y ) const;
virtual void DoScreenToClient( int *x, int *y ) const;
virtual void DoGetPosition( int *x, int *y ) const;
int width, int height,
int sizeFlags = wxSIZE_AUTO);
virtual void DoSetClientSize(int width, int height);
+ virtual wxSize DoGetBorderSize() const;
virtual void DoMoveWindow(int x, int y, int width, int height);
+ virtual void DoEnable(bool enable);
#if wxUSE_MENUS_NATIVE
virtual bool DoPopupMenu( wxMenu *menu, int x, int y );
virtual void DoCaptureMouse();
virtual void DoReleaseMouse();
+ virtual void DoFreeze();
+ virtual void DoThaw();
+
+ void GTKFreezeWidget(GtkWidget *w);
+ void GTKThawWidget(GtkWidget *w);
+ void GTKDisconnect(void* instance);
+
#if wxUSE_TOOLTIPS
virtual void DoSetToolTip( wxToolTip *tip );
#endif // wxUSE_TOOLTIPS
- // common part of all ctors (not virtual because called from ctor)
- void Init();
+ // Create a GtkScrolledWindow containing the given widget (usually
+ // m_wxwindow but not necessarily) and assigns it to m_widget. Also shows
+ // the widget passed to it.
+ //
+ // Can be only called if we have either wxHSCROLL or wxVSCROLL in our
+ // style.
+ void GTKCreateScrolledWindowWith(GtkWidget* view);
+
+ virtual void DoMoveInTabOrder(wxWindow *win, WindowOrder move);
+ virtual bool DoNavigateIn(int flags);
- virtual void DoMoveInTabOrder(wxWindow *win, MoveKind move);
// Copies m_children tab order to GTK focus chain:
void RealizeTabOrder();
+#ifndef __WXGTK3__
// Called by ApplyWidgetStyle (which is called by SetFont() and
// SetXXXColour etc to apply style changed to native widgets) to create
- // modified GTK style with non-standard attributes. If forceStyle=true,
- // creates empty GtkRcStyle if there are no modifications, otherwise
- // returns NULL in such case.
- GtkRcStyle *CreateWidgetStyle(bool forceStyle = false);
+ // modified GTK style with non-standard attributes.
+ GtkRcStyle* GTKCreateWidgetStyle();
+#endif
- // Overridden in many GTK widgets who have to handle subwidgets
- virtual void ApplyWidgetStyle(bool forceStyle = false);
+ void GTKApplyWidgetStyle(bool forceStyle = false);
// helper function to ease native widgets wrapping, called by
// ApplyWidgetStyle -- override this, not ApplyWidgetStyle
virtual void DoApplyWidgetStyle(GtkRcStyle *style);
+ void GTKApplyStyle(GtkWidget* widget, GtkRcStyle* style);
+
// sets the border of a given GtkScrolledWindow from a wx style
- static void GtkScrolledWindowSetBorder(GtkWidget* w, int style);
+ static void GTKScrolledWindowSetBorder(GtkWidget* w, int style);
-protected:
- // GtkAdjustment to be used by Scroll{Lines,Pages}
- void SetVScrollAdjustment(GtkAdjustment* adj);
+ // Connect the given function to the specified signal on m_widget.
+ //
+ // This is just a wrapper for g_signal_connect() and returns the handler id
+ // just as it does.
+ unsigned long GTKConnectWidget(const char *signal, wxGTKCallback callback);
+
+ void ConstrainSize();
private:
+ void Init();
+
+ // return true if this window must have a non-NULL parent, false if it can
+ // be created without parent (normally only top level windows but in wxGTK
+ // there is also the exception of wxMenuBar)
+ virtual bool GTKNeedsParent() const { return !IsTopLevel(); }
+
+ enum ScrollUnit { ScrollUnit_Line, ScrollUnit_Page, ScrollUnit_Max };
+
+ // common part of ScrollLines() and ScrollPages() and could be used, in the
+ // future, for horizontal scrolling as well
+ //
+ // return true if we scrolled, false otherwise (on error or simply if we
+ // are already at the end)
+ bool DoScrollByUnits(ScrollDir dir, ScrollUnit unit, int units);
+ virtual void AddChildGTK(wxWindowGTK* child);
+
+#ifdef __WXGTK3__
+ // paint context is stashed here so wxPaintDC can use it
+ cairo_t* m_paintContext;
+ // style provider for "background-image"
+ GtkStyleProvider* m_styleProvider;
+
+public:
+ cairo_t* GTKPaintContext() const
+ {
+ return m_paintContext;
+ }
+#endif
+
DECLARE_DYNAMIC_CLASS(wxWindowGTK)
- DECLARE_NO_COPY_CLASS(wxWindowGTK)
+ wxDECLARE_NO_COPY_CLASS(wxWindowGTK);
};
-extern WXDLLIMPEXP_CORE wxWindow *wxFindFocusedChild(wxWindowGTK *win);
-
-#endif // __GTKWINDOWH__
+#endif // _WX_GTK_WINDOW_H_
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