include/wx/listbox.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/listbox.h
   3 // Purpose:     wxListBox class interface
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     22.10.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) wxWidgets team
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_LISTBOX_H_BASE_
  13 #define _WX_LISTBOX_H_BASE_
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 #include "wx/defs.h"
  20
  21 #if wxUSE_LISTBOX
  22
  23 #include "wx/ctrlsub.h"         // base class
  24
  25 // forward declarations are enough here
  26 class WXDLLIMPEXP_BASE wxArrayInt;
  27 class WXDLLIMPEXP_BASE wxArrayString;
  28
  29 // ----------------------------------------------------------------------------
  30 // global data
  31 // ----------------------------------------------------------------------------
  32
  33 extern WXDLLEXPORT_DATA(const wxChar) wxListBoxNameStr[];
  34
  35 // ----------------------------------------------------------------------------
  36 // wxListBox interface is defined by the class wxListBoxBase
  37 // ----------------------------------------------------------------------------
  38
  39 class WXDLLEXPORT wxListBoxBase : public wxControlWithItems
  40 {
  41 public:
  42     wxListBoxBase() { }
  43     virtual ~wxListBoxBase();
  44
  45     // all generic methods are in wxControlWithItems, except for the following
  46     // ones which are not yet implemented by wxChoice/wxComboBox
  47     void Insert(const wxString& item, unsigned int pos)
  48         { DoInsert(item, pos); }
  49     void Insert(const wxString& item, unsigned int pos, void *clientData)
  50         { DoInsert(item, pos); SetClientData(pos, clientData); }
  51     void Insert(const wxString& item, unsigned int pos, wxClientData *clientData)
  52         { DoInsert(item, pos); SetClientObject(pos, clientData); }
  53
  54     void InsertItems(unsigned int nItems, const wxString *items, unsigned int pos);
  55     void InsertItems(const wxArrayString& items, unsigned int pos)
  56         { DoInsertItems(items, pos); }
  57
  58     void Set(int n, const wxString* items, void **clientData = NULL);
  59     void Set(const wxArrayString& items, void **clientData = NULL)
  60         { DoSetItems(items, clientData); }
  61
  62     // multiple selection logic
  63     virtual bool IsSelected(int n) const = 0;
  64     virtual void SetSelection(int n) { DoSetSelection(n, true); }
  65     void SetSelection(int n, bool select) { DoSetSelection(n, select); }
  66     void Deselect(int n) { DoSetSelection(n, false); }
  67     void DeselectAll(int itemToLeaveSelected = -1);
  68
  69     virtual bool SetStringSelection(const wxString& s, bool select);
  70     virtual bool SetStringSelection(const wxString& s)
  71     {
  72         return SetStringSelection(s, true);
  73     }
  74
  75     // works for single as well as multiple selection listboxes (unlike
  76     // GetSelection which only works for listboxes with single selection)
  77     virtual int GetSelections(wxArrayInt& aSelections) const = 0;
  78
  79     // set the specified item at the first visible item or scroll to max
  80     // range.
  81     void SetFirstItem(int n) { DoSetFirstItem(n); }
  82     void SetFirstItem(const wxString& s);
  83
  84     // ensures that the given item is visible scrolling the listbox if
  85     // necessary
  86     virtual void EnsureVisible(int n);
  87
  88     // a combination of Append() and EnsureVisible(): appends the item to the
  89     // listbox and ensures that it is visible i.e. not scrolled out of view
  90     void AppendAndEnsureVisible(const wxString& s);
  91
  92     // return true if the listbox allows multiple selection
  93     bool HasMultipleSelection() const
  94     {
  95         return (m_windowStyle & wxLB_MULTIPLE) ||
  96                (m_windowStyle & wxLB_EXTENDED);
  97     }
  98
  99     // return true if this listbox is sorted
 100     bool IsSorted() const { return (m_windowStyle & wxLB_SORT) != 0; }
 101
 102     // emulate selecting or deselecting the item event.GetInt() (depending on
 103     // event.GetExtraLong())
 104     void Command(wxCommandEvent& event);
 105
 106     // compatibility - these functions are deprecated, use the new ones
 107     // instead
 108     bool Selected(int n) const { return IsSelected(n); }
 109
 110     // returns the item number at a point or wxNOT_FOUND
 111     int HitTest(const wxPoint& point) const { return DoListHitTest(point); }
 112
 113 protected:
 114     // NB: due to wxGTK implementation details, DoInsert() is implemented
 115     //     using DoInsertItems() and not the other way round
 116     virtual int DoInsert(const wxString& item, unsigned int pos)
 117         { InsertItems(1, &item, pos); return pos; }
 118
 119     // to be implemented in derived classes
 120     virtual void DoInsertItems(const wxArrayString& items, unsigned int pos) = 0;
 121     virtual void DoSetItems(const wxArrayString& items, void **clientData) = 0;
 122
 123     virtual void DoSetFirstItem(int n) = 0;
 124
 125     virtual void DoSetSelection(int n, bool select) = 0;
 126
 127     // there is already wxWindow::DoHitTest() so call this one differently
 128     virtual int DoListHitTest(const wxPoint& WXUNUSED(point)) const
 129         { return wxNOT_FOUND; }
 130
 131
 132     DECLARE_NO_COPY_CLASS(wxListBoxBase)
 133 };
 134
 135 // ----------------------------------------------------------------------------
 136 // include the platform-specific class declaration
 137 // ----------------------------------------------------------------------------
 138
 139 #if defined(__WXUNIVERSAL__)
 140     #include "wx/univ/listbox.h"
 141 #elif defined(__WXMSW__)
 142     #include "wx/msw/listbox.h"
 143 #elif defined(__WXMOTIF__)
 144     #include "wx/motif/listbox.h"
 145 #elif defined(__WXGTK20__)
 146     #include "wx/gtk/listbox.h"
 147 #elif defined(__WXGTK__)
 148   #include "wx/gtk1/listbox.h"
 149 #elif defined(__WXMAC__)
 150     #include "wx/mac/listbox.h"
 151 #elif defined(__WXPM__)
 152     #include "wx/os2/listbox.h"
 153 #elif defined(__WXCOCOA__)
 154     #include "wx/cocoa/listbox.h"
 155 #endif
 156
 157 #endif // wxUSE_LISTBOX
 158
 159 #endif
 160     // _WX_LISTBOX_H_BASE_