fix keyboard navigation in radio boxes containing hidden or disabled items
[wxWidgets.git] / include / wx / radiobox.h
1 ///////////////////////////////////////////////////////////////////////////////
2 // Name: wx/radiobox.h
3 // Purpose: wxRadioBox declaration
4 // Author: Vadim Zeitlin
5 // Modified by:
6 // Created: 10.09.00
7 // RCS-ID: $Id$
8 // Copyright: (c) Vadim Zeitlin
9 // Licence: wxWindows licence
10 ///////////////////////////////////////////////////////////////////////////////
11
12 #ifndef _WX_RADIOBOX_H_BASE_
13 #define _WX_RADIOBOX_H_BASE_
14
15 #if wxUSE_RADIOBOX
16
17 #include "wx/ctrlsub.h"
18
19 #if wxUSE_TOOLTIPS
20
21 #include "wx/dynarray.h"
22
23 class WXDLLIMPEXP_FWD_CORE wxToolTip;
24
25 WX_DEFINE_EXPORTED_ARRAY_PTR(wxToolTip *, wxToolTipArray);
26
27 #endif // wxUSE_TOOLTIPS
28
29 extern WXDLLIMPEXP_DATA_CORE(const char) wxRadioBoxNameStr[];
30
31 // ----------------------------------------------------------------------------
32 // wxRadioBoxBase is not a normal base class, but rather a mix-in because the
33 // real wxRadioBox derives from different classes on different platforms: for
34 // example, it is a wxStaticBox in wxUniv and wxMSW but not in other ports
35 // ----------------------------------------------------------------------------
36
37 class WXDLLIMPEXP_CORE wxRadioBoxBase : public wxItemContainerImmutable
38 {
39 public:
40 virtual ~wxRadioBoxBase();
41
42 // change/query the individual radio button state
43 virtual bool Enable(unsigned int n, bool enable = true) = 0;
44 virtual bool Show(unsigned int n, bool show = true) = 0;
45 virtual bool IsItemEnabled(unsigned int n) const = 0;
46 virtual bool IsItemShown(unsigned int n) const = 0;
47
48 // return number of columns/rows in this radiobox
49 unsigned int GetColumnCount() const { return m_numCols; }
50 unsigned int GetRowCount() const { return m_numRows; }
51
52 // return the next active (i.e. shown and not disabled) item above/below/to
53 // the left/right of the given one
54 int GetNextItem(int item, wxDirection dir, long style) const;
55
56 #if wxUSE_TOOLTIPS
57 // set the tooltip text for a radio item, empty string unsets any tooltip
58 void SetItemToolTip(unsigned int item, const wxString& text);
59
60 // get the individual items tooltip; returns NULL if none
61 wxToolTip *GetItemToolTip(unsigned int item) const
62 { return m_itemsTooltips ? (*m_itemsTooltips)[item] : NULL; }
63 #endif // wxUSE_TOOLTIPS
64
65 #if wxUSE_HELP
66 // set helptext for a particular item, pass an empty string to erase it
67 void SetItemHelpText(unsigned int n, const wxString& helpText);
68
69 // retrieve helptext for a particular item, empty string means no help text
70 wxString GetItemHelpText(unsigned int n) const;
71 #else // wxUSE_HELP
72 // just silently ignore the help text, it's better than requiring using
73 // conditional compilation in all code using this function
74 void SetItemHelpText(unsigned int WXUNUSED(n),
75 const wxString& WXUNUSED(helpText))
76 {
77 }
78 #endif // wxUSE_HELP
79
80 // returns the radio item at the given position or wxNOT_FOUND if none
81 // (currently implemented only under MSW and GTK)
82 virtual int GetItemFromPoint(const wxPoint& WXUNUSED(pt)) const
83 {
84 return wxNOT_FOUND;
85 }
86
87
88 protected:
89 wxRadioBoxBase()
90 {
91 m_numCols =
92 m_numRows =
93 m_majorDim = 0;
94
95 #if wxUSE_TOOLTIPS
96 m_itemsTooltips = NULL;
97 #endif // wxUSE_TOOLTIPS
98 }
99
100 virtual wxBorder GetDefaultBorder() const { return wxBORDER_NONE; }
101
102 // return the number of items in major direction (which depends on whether
103 // we have wxRA_SPECIFY_COLS or wxRA_SPECIFY_ROWS style)
104 unsigned int GetMajorDim() const { return m_majorDim; }
105
106 // sets m_majorDim and also updates m_numCols/Rows
107 //
108 // the style parameter should be the style of the radiobox itself
109 void SetMajorDim(unsigned int majorDim, long style);
110
111 #if wxUSE_TOOLTIPS
112 // called from SetItemToolTip() to really set the tooltip for the specified
113 // item in the box (or, if tooltip is NULL, to remove any existing one).
114 //
115 // NB: this function should really be pure virtual but to avoid breaking
116 // the build of the ports for which it's not implemented yet we provide
117 // an empty stub in the base class for now
118 virtual void DoSetItemToolTip(unsigned int item, wxToolTip *tooltip);
119
120 // returns true if we have any item tooltips
121 bool HasItemToolTips() const { return m_itemsTooltips != NULL; }
122 #endif // wxUSE_TOOLTIPS
123
124 #if wxUSE_HELP
125 // Retrieve help text for an item: this is a helper for the implementation
126 // of wxWindow::GetHelpTextAtPoint() in the real radiobox class
127 wxString DoGetHelpTextAtPoint(const wxWindow *derived,
128 const wxPoint& pt,
129 wxHelpEvent::Origin origin) const;
130 #endif // wxUSE_HELP
131
132 private:
133 // the number of elements in major dimension (i.e. number of columns if
134 // wxRA_SPECIFY_COLS or the number of rows if wxRA_SPECIFY_ROWS) and also
135 // the number of rows/columns calculated from it
136 unsigned int m_majorDim,
137 m_numCols,
138 m_numRows;
139
140 #if wxUSE_TOOLTIPS
141 // array of tooltips for the individual items
142 //
143 // this array is initially NULL and initialized on first use
144 wxToolTipArray *m_itemsTooltips;
145 #endif
146
147 #if wxUSE_HELP
148 // help text associated with a particular item or empty string if none
149 wxArrayString m_itemsHelpTexts;
150 #endif // wxUSE_HELP
151 };
152
153 #if defined(__WXUNIVERSAL__)
154 #include "wx/univ/radiobox.h"
155 #elif defined(__WXMSW__)
156 #include "wx/msw/radiobox.h"
157 #elif defined(__WXMOTIF__)
158 #include "wx/motif/radiobox.h"
159 #elif defined(__WXGTK20__)
160 #include "wx/gtk/radiobox.h"
161 #elif defined(__WXGTK__)
162 #include "wx/gtk1/radiobox.h"
163 #elif defined(__WXMAC__)
164 #include "wx/osx/radiobox.h"
165 #elif defined(__WXCOCOA__)
166 #include "wx/cocoa/radiobox.h"
167 #elif defined(__WXPM__)
168 #include "wx/os2/radiobox.h"
169 #elif defined(__WXPALMOS__)
170 #include "wx/palmos/radiobox.h"
171 #endif
172
173 #endif // wxUSE_RADIOBOX
174
175 #endif // _WX_RADIOBOX_H_BASE_