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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: wx/gtk1/window.h
3 // Purpose:
4 // Author: Robert Roebling
5 // Id: $Id$
6 // Copyright: (c) 1998 Robert Roebling
7 // Licence: wxWindows licence
8 /////////////////////////////////////////////////////////////////////////////
9
10 #ifndef __GTKWINDOWH__
11 #define __GTKWINDOWH__
12
13 typedef struct _GtkTooltips GtkTooltips;
14 #ifdef HAVE_XIM
15 typedef struct _GdkIC GdkIC;
16 typedef struct _GdkICAttr GdkICAttr;
17 #endif
18
19 //-----------------------------------------------------------------------------
20 // callback definition for inserting a window (internal)
21 //-----------------------------------------------------------------------------
22
23 class WXDLLIMPEXP_FWD_CORE wxWindowGTK;
24 typedef void (*wxInsertChildFunction)( wxWindowGTK*, wxWindowGTK* );
25
26 //-----------------------------------------------------------------------------
27 // wxWindowGTK
28 //-----------------------------------------------------------------------------
29
30 class WXDLLIMPEXP_CORE wxWindowGTK : public wxWindowBase
31 {
32 public:
33 // creating the window
34 // -------------------
35 wxWindowGTK();
36 wxWindowGTK(wxWindow *parent,
37 wxWindowID id,
38 const wxPoint& pos = wxDefaultPosition,
39 const wxSize& size = wxDefaultSize,
40 long style = 0,
41 const wxString& name = wxPanelNameStr);
42 bool Create(wxWindow *parent,
43 wxWindowID id,
44 const wxPoint& pos = wxDefaultPosition,
45 const wxSize& size = wxDefaultSize,
46 long style = 0,
47 const wxString& name = wxPanelNameStr);
48 virtual ~wxWindowGTK();
49
50 // implement base class (pure) virtual methods
51 // -------------------------------------------
52
53 virtual void SetLabel(const wxString& WXUNUSED(label)) { }
54 virtual wxString GetLabel() const { return wxEmptyString; }
55
56 virtual bool Destroy();
57
58 virtual void Raise();
59 virtual void Lower();
60
61 virtual bool Show( bool show = true );
62 virtual void DoEnable( bool enable );
63
64 virtual void SetWindowStyleFlag( long style );
65
66 virtual bool IsRetained() const;
67
68 virtual void SetFocus();
69 virtual bool AcceptsFocus() const;
70
71 virtual bool Reparent( wxWindowBase *newParent );
72
73 virtual void WarpPointer(int x, int y);
74
75 virtual void Refresh( bool eraseBackground = true,
76 const wxRect *rect = (const wxRect *) NULL );
77 virtual void Update();
78 virtual void ClearBackground();
79
80 virtual bool SetBackgroundColour( const wxColour &colour );
81 virtual bool SetForegroundColour( const wxColour &colour );
82 virtual bool SetCursor( const wxCursor &cursor );
83 virtual bool SetFont( const wxFont &font );
84
85 virtual bool SetBackgroundStyle(wxBackgroundStyle style) ;
86
87 virtual int GetCharHeight() const;
88 virtual int GetCharWidth() const;
89
90 virtual void SetScrollbar( int orient, int pos, int thumbVisible,
91 int range, bool refresh = true );
92 virtual void SetScrollPos( int orient, int pos, bool refresh = true );
93 virtual int GetScrollPos( int orient ) const;
94 virtual int GetScrollThumb( int orient ) const;
95 virtual int GetScrollRange( int orient ) const;
96 virtual void ScrollWindow( int dx, int dy,
97 const wxRect* rect = NULL );
98
99 #if wxUSE_DRAG_AND_DROP
100 virtual void SetDropTarget( wxDropTarget *dropTarget );
101 #endif // wxUSE_DRAG_AND_DROP
102
103 virtual bool IsDoubleBuffered() const { return false; }
104
105 GdkWindow* GTKGetDrawingWindow() const;
106
107 // implementation
108 // --------------
109
110 virtual WXWidget GetHandle() const { return m_widget; }
111
112 // I don't want users to override what's done in idle so everything that
113 // has to be done in idle time in order for wxGTK to work is done in
114 // OnInternalIdle
115 virtual void OnInternalIdle();
116
117 // Internal representation of Update()
118 void GtkUpdate();
119
120 // For compatibility across platforms (not in event table)
121 void OnIdle(wxIdleEvent& WXUNUSED(event)) {}
122
123 // Used by all window classes in the widget creation process.
124 bool PreCreation( wxWindowGTK *parent, const wxPoint &pos, const wxSize &size );
125 void PostCreation();
126
127 // Internal addition of child windows. differs from class
128 // to class not by using virtual functions but by using
129 // the m_insertCallback.
130 void DoAddChild(wxWindowGTK *child);
131
132 // This methods sends wxPaintEvents to the window. It reads the
133 // update region, breaks it up into rects and sends an event
134 // for each rect. It is also responsible for background erase
135 // events and NC paint events. It is called from "draw" and
136 // "expose" handlers as well as from ::Update()
137 void GtkSendPaintEvents();
138
139 // The methods below are required because many native widgets
140 // are composed of several subwidgets and setting a style for
141 // the widget means setting it for all subwidgets as well.
142 // also, it is not clear which native widget is the top
143 // widget where (most of) the input goes. even tooltips have
144 // to be applied to all subwidgets.
145 virtual GtkWidget* GetConnectWidget();
146 virtual bool IsOwnGtkWindow( GdkWindow *window );
147 void ConnectWidget( GtkWidget *widget );
148
149 #if wxUSE_TOOLTIPS
150 virtual void ApplyToolTip( GtkTooltips *tips, const wxChar *tip );
151 #endif // wxUSE_TOOLTIPS
152
153 // Call after modifing the value of m_hAdjust or m_vAdjust to bring the
154 // scrolbar in sync (this does not generate any wx events)
155 void GtkUpdateScrollbar(int orient);
156
157 // Called from GTK signal handlers. it indicates that
158 // the layout functions have to be called later on
159 // (i.e. in idle time, implemented in OnInternalIdle() ).
160 void GtkUpdateSize() { m_sizeSet = false; }
161
162 // fix up the mouse event coords, used by wxListBox only so far
163 virtual void FixUpMouseEvent(GtkWidget * WXUNUSED(widget),
164 wxCoord& WXUNUSED(x),
165 wxCoord& WXUNUSED(y)) { }
166
167 // is this window transparent for the mouse events (as wxStaticBox is)?
168 virtual bool IsTransparentForMouse() const { return false; }
169
170 // is this a radiobutton (used by radiobutton code itself only)?
171 virtual bool IsRadioButton() const { return false; }
172
173 // position and size of the window
174 int m_x, m_y;
175 int m_width, m_height;
176 int m_oldClientWidth,m_oldClientHeight;
177
178 // see the docs in src/gtk/window.cpp
179 GtkWidget *m_widget; // mostly the widget seen by the rest of GTK
180 GtkWidget *m_wxwindow; // mostly the client area as per wxWidgets
181
182 // this widget will be queried for GTK's focus events
183 GtkWidget *m_focusWidget;
184
185 #ifdef HAVE_XIM
186 // XIM support for wxWidgets
187 GdkIC *m_ic;
188 GdkICAttr *m_icattr;
189 #endif // HAVE_XIM
190
191 // The area to be cleared (and not just refreshed)
192 // We cannot make this distinction under GTK 2.0.
193 wxRegion m_clearRegion;
194
195 // scrolling stuff
196 GtkAdjustment *m_hAdjust,*m_vAdjust;
197 float m_oldHorizontalPos;
198 float m_oldVerticalPos;
199
200 // extra (wxGTK-specific) flags
201 bool m_needParent:1; // ! wxFrame, wxDialog, wxNotebookPage ?
202 bool m_noExpose:1; // wxGLCanvas has its own redrawing
203 bool m_nativeSizeEvent:1; // wxGLCanvas sends wxSizeEvent upon "alloc_size"
204 bool m_hasScrolling:1;
205 bool m_hasVMT:1;
206 bool m_sizeSet:1;
207 bool m_resizing:1;
208 bool m_acceptsFocus:1; // true if not static
209 bool m_hasFocus:1; // true if == FindFocus()
210 bool m_isScrolling:1; // dragging scrollbar thumb?
211 bool m_clipPaintRegion:1; // true after ScrollWindow()
212 bool m_needsStyleChange:1; // May not be able to change
213 // background style until OnIdle
214
215 // C++ has no virtual methods in the constrcutor of any class but we need
216 // different methods of inserting a child window into a wxFrame,
217 // wxMDIFrame, wxNotebook etc. this is the callback that will get used.
218 wxInsertChildFunction m_insertCallback;
219
220 // implement the base class pure virtuals
221 virtual void DoGetTextExtent(const wxString& string,
222 int *x, int *y,
223 int *descent = NULL,
224 int *externalLeading = NULL,
225 const wxFont *theFont = NULL) const;
226
227 #if wxUSE_MENUS_NATIVE
228 virtual bool DoPopupMenu( wxMenu *menu, int x, int y );
229 #endif // wxUSE_MENUS_NATIVE
230
231 virtual void DoClientToScreen( int *x, int *y ) const;
232 virtual void DoScreenToClient( int *x, int *y ) const;
233 virtual void DoGetPosition( int *x, int *y ) const;
234 virtual void DoGetSize( int *width, int *height ) const;
235 virtual void DoGetClientSize( int *width, int *height ) const;
236 virtual void DoSetSize(int x, int y,
237 int width, int height,
238 int sizeFlags = wxSIZE_AUTO);
239 virtual void DoSetClientSize(int width, int height);
240 virtual void DoMoveWindow(int x, int y, int width, int height);
241
242 virtual void DoCaptureMouse();
243 virtual void DoReleaseMouse();
244
245 #if wxUSE_TOOLTIPS
246 virtual void DoSetToolTip( wxToolTip *tip );
247 #endif // wxUSE_TOOLTIPS
248
249 protected:
250 // common part of all ctors (not virtual because called from ctor)
251 void Init();
252
253 // Called by ApplyWidgetStyle (which is called by SetFont() and
254 // SetXXXColour etc to apply style changed to native widgets) to create
255 // modified GTK style with non-standard attributes. If forceStyle=true,
256 // creates empty GtkRcStyle if there are no modifications, otherwise
257 // returns NULL in such case.
258 GtkRcStyle *CreateWidgetStyle(bool forceStyle = false);
259
260 // Overridden in many GTK widgets who have to handle subwidgets
261 virtual void ApplyWidgetStyle(bool forceStyle = false);
262
263 // helper function to ease native widgets wrapping, called by
264 // ApplyWidgetStyle -- override this, not ApplyWidgetStyle
265 virtual void DoApplyWidgetStyle(GtkRcStyle *style);
266
267 private:
268 DECLARE_DYNAMIC_CLASS(wxWindowGTK)
269 wxDECLARE_NO_COPY_CLASS(wxWindowGTK);
270 };
271
272 extern WXDLLIMPEXP_CORE wxWindow *wxFindFocusedChild(wxWindowGTK *win);
273
274 #endif // __GTKWINDOWH__