include/wx/gtk/window.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        window.h
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10
  11 #ifndef __GTKWINDOWH__
  12 #define __GTKWINDOWH__
  13
  14 #ifdef __GNUG__
  15     #pragma interface
  16 #endif
  17
  18 //-----------------------------------------------------------------------------
  19 // callback definition for inserting a window (internal)
  20 //-----------------------------------------------------------------------------
  21
  22 typedef void (*wxInsertChildFunction)( wxWindow*, wxWindow* );
  23
  24 //-----------------------------------------------------------------------------
  25 // wxWindow
  26 //-----------------------------------------------------------------------------
  27
  28 class wxWindow : public wxWindowBase
  29 {
  30     DECLARE_DYNAMIC_CLASS(wxWindow)
  31
  32 public:
  33     // creating the window
  34     // -------------------
  35     wxWindow();
  36     wxWindow(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 ~wxWindow();
  49
  50     // implement base class (pure) virtual methods
  51     // -------------------------------------------
  52     virtual bool Destroy();
  53
  54     virtual void Raise();
  55     virtual void Lower();
  56
  57     virtual bool Show( bool show = TRUE );
  58     virtual bool Enable( bool enable = TRUE );
  59
  60     virtual bool IsRetained() const;
  61
  62     virtual void SetFocus();
  63     virtual bool AcceptsFocus() const;
  64
  65     virtual bool Reparent( wxWindow *newParent );
  66
  67     virtual void WarpPointer(int x, int y);
  68     virtual void CaptureMouse();
  69     virtual void ReleaseMouse();
  70
  71     virtual void Refresh( bool eraseBackground = TRUE,
  72                           const wxRect *rect = (const wxRect *) NULL );
  73     virtual void Clear();
  74
  75     virtual bool SetBackgroundColour( const wxColour &colour );
  76     virtual bool SetForegroundColour( const wxColour &colour );
  77     virtual bool SetCursor( const wxCursor &cursor );
  78     virtual bool SetFont( const wxFont &font );
  79
  80     virtual int GetCharHeight() const;
  81     virtual int GetCharWidth() const;
  82     virtual void GetTextExtent(const wxString& string,
  83                                int *x, int *y,
  84                                int *descent = (int *) NULL,
  85                                int *externalLeading = (int *) NULL,
  86                                const wxFont *theFont = (const wxFont *) NULL)
  87                                const;
  88
  89     virtual bool DoPopupMenu( wxMenu *menu, int x, int y );
  90
  91     virtual void SetScrollbar( int orient, int pos, int thumbVisible,
  92                                int range, bool refresh = TRUE );
  93     virtual void SetScrollPos( int orient, int pos, bool refresh = TRUE );
  94     virtual int GetScrollPos( int orient ) const;
  95     virtual int GetScrollThumb( int orient ) const;
  96     virtual int GetScrollRange( int orient ) const;
  97     virtual void ScrollWindow( int dx, int dy,
  98                                const wxRect* rect = (wxRect *) NULL );
  99
 100 #if wxUSE_DRAG_AND_DROP
 101     virtual void SetDropTarget( wxDropTarget *dropTarget );
 102 #endif // wxUSE_DRAG_AND_DROP
 103
 104     // implementation
 105     // --------------
 106
 107     virtual WXWidget GetHandle() const { return m_widget; }
 108
 109     // also sets the global flag
 110     void SetScrolling(bool scroll);
 111
 112     bool HasScrolling() const { return m_hasScrolling; }
 113     bool IsScrolling() const { return m_isScrolling; }
 114
 115     /* I don't want users to override what's done in idle so everything that
 116        has to be done in idle time in order for wxGTK to work is done in
 117        OnInternalIdle */
 118     virtual void OnInternalIdle();
 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( wxWindow *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(wxWindow *child);
 131
 132     /* the methods below are required because many native widgets
 133        are composed of several subwidgets and setting a style for
 134        the widget means setting it for all subwidgets as well.
 135        also, it is nor clear, which native widget is the top
 136        widget where (most of) the input goes. even tooltips have
 137        to be applied to all subwidgets. */
 138
 139     virtual GtkWidget* GetConnectWidget();
 140     virtual bool IsOwnGtkWindow( GdkWindow *window );
 141     void ConnectWidget( GtkWidget *widget );
 142
 143     /* creates a new widget style if none is there
 144        and sets m_widgetStyle to this value. */
 145     GtkStyle *GetWidgetStyle();
 146
 147     /* called by SetFont() and SetXXXColour etc */
 148     void SetWidgetStyle();
 149
 150     /* overridden in many GTK widgets */
 151     virtual void ApplyWidgetStyle();
 152
 153 #if wxUSE_TOOLTIPS
 154     virtual void ApplyToolTip( GtkTooltips *tips, const wxChar *tip );
 155 #endif // wxUSE_TOOLTIPS
 156
 157     // called from GTK signales handlers. it indicates that
 158     // the layouting functions have to be called later on
 159     // (i.e. in idle time, implemented in OnInternalIdle() ).
 160     void UpdateSize() { m_sizeSet = FALSE; }
 161
 162     // position and size of the window
 163     int                  m_x, m_y;
 164     int                  m_width, m_height;
 165
 166     /* see the docs in src/gtk/window.cpp */
 167     GtkWidget           *m_widget;
 168     GtkWidget           *m_wxwindow;
 169
 170     /* scrolling stuff */
 171     GtkAdjustment       *m_hAdjust,*m_vAdjust;
 172     float                m_oldHorizontalPos;
 173     float                m_oldVerticalPos;
 174
 175     // we need an extra XGC flag set to get exposed
 176     // events from overlapping children upon moving
 177     // them. this flag will be set in this GC and
 178     // the GC will be used in wxWindow::ScrollWindow().
 179     GdkGC               *m_scrollGC;
 180
 181     // extra (wxGTK-specific) flags
 182     bool                 m_needParent:1;    /* ! wxFrame, wxDialog, wxNotebookPage ?  */
 183     bool                 m_hasScrolling:1;
 184     bool                 m_isScrolling:1;
 185     bool                 m_hasVMT:1;
 186     bool                 m_sizeSet:1;
 187     bool                 m_resizing:1;
 188     bool                 m_isStaticBox:1;   /* faster than IS_KIND_OF */
 189     bool                 m_isRadioButton:1; /* faster than IS_KIND_OF */
 190     bool                 m_isFrame:1;       /* faster than IS_KIND_OF */
 191     bool                 m_acceptsFocus:1;  /* ! wxStaticBox etc.  */
 192
 193     // these are true if the style were set before the widget was realized
 194     // (typcally in the constructor) but the actual GTK style must not be set
 195     // before the widget has been "realized"
 196     bool                 m_delayedFont:1;
 197     bool                 m_delayedForegroundColour:1;
 198     bool                 m_delayedBackgroundColour:1;
 199     bool                 m_delayedCursor:1;
 200
 201     // the cursor is set in OnInternalIdle(). this fields holds
 202     // a reference to the cursor currently set in theGdk window
 203     // so that we don't have to set it more than once
 204     wxCursor             m_currentGdkCursor;
 205
 206     // contains GTK's widgets internal information about non-default widget
 207     // font and colours. we create one for each widget that gets any
 208     // non-default attribute set via SetFont() or SetForegroundColour() /
 209     // SetBackgroundColour().
 210     GtkStyle            *m_widgetStyle;
 211
 212     // C++ has no virtual methods in the constrcutor of any class but we need
 213     // different methods of inserting a child window into a wxFrame,
 214     // wxMDIFrame, wxNotebook etc. this is the callback that will get used.
 215     wxInsertChildFunction  m_insertCallback;
 216
 217     // implement the base class pure virtuals
 218     virtual void DoClientToScreen( int *x, int *y ) const;
 219     virtual void DoScreenToClient( int *x, int *y ) const;
 220     virtual void DoGetPosition( int *x, int *y ) const;
 221     virtual void DoGetSize( int *width, int *height ) const;
 222     virtual void DoGetClientSize( int *width, int *height ) const;
 223     virtual void DoSetSize(int x, int y,
 224                            int width, int height,
 225                            int sizeFlags = wxSIZE_AUTO);
 226     virtual void DoSetClientSize(int width, int height);
 227
 228 #if wxUSE_TOOLTIPS
 229     virtual void DoSetToolTip( wxToolTip *tip );
 230 #endif // wxUSE_TOOLTIPS
 231
 232     // common part of all ctors (can't be virtual because called from ctor)
 233     void Init();
 234
 235 private:
 236     DECLARE_NO_COPY_CLASS(wxWindow);
 237 };
 238
 239 #endif // __GTKWINDOWH__