interface/bmpcbox.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        bmpcbox.h
   3 // Purpose:     interface of wxBitmapComboBox
   4 // Author:      wxWidgets team
   5 // RCS-ID:      $Id$
   6 // Licence:     wxWindows license
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 /**
  10     @class wxBitmapComboBox
  11     @wxheader{bmpcbox.h}
  12
  13     A combobox that displays bitmap in front of the list items.
  14     It currently only allows using bitmaps of one size, and resizes itself
  15     so that a bitmap can be shown next to the text field.
  16
  17     @remarks
  18     While wxBitmapComboBox contains the wxComboBox API, but it might not actually
  19     be derived from that class. In fact, if the platform does not have a native
  20     implementation, wxBitmapComboBox will inherit from wxOwnerDrawnComboBox.
  21     You can determine if the implementation is generic by checking whether
  22     @c wxGENERIC_BITMAPCOMBOBOX is defined.
  23
  24     @beginStyleTable
  25     @style{wxCB_READONLY}
  26            Creates a combobox without a text editor. On some platforms the
  27            control may appear very different when this style is used.
  28     @style{wxCB_SORT}
  29            Sorts the entries in the list alphabetically.
  30     @style{wxTE_PROCESS_ENTER}
  31            The control will generate the event wxEVT_COMMAND_TEXT_ENTER
  32            (otherwise pressing Enter key is either processed internally by the
  33            control or used for navigation between dialog controls).
  34            Windows only.
  35     @endStyleTable
  36
  37     @todo create wxCB_PROCESS_ENTER rather than reusing wxTE_PROCESS_ENTER!
  38
  39     @beginEventTable{wxCommandEvent}
  40     @event{EVT_COMBOBOX(id, func)}
  41            Process a wxEVT_COMMAND_COMBOBOX_SELECTED event, when an item on
  42            the list is selected.
  43     @event{EVT_TEXT(id, func)}
  44            Process a wxEVT_COMMAND_TEXT_UPDATED event, when the combobox text changes.
  45     @event{EVT_TEXT_ENTER(id, func)}
  46            Process a wxEVT_COMMAND_TEXT_ENTER event, when RETURN is pressed in
  47            the combobox.
  48     @endEventTable
  49
  50     @library{wxadv}
  51     @category{ctrl}
  52     <!-- @appearance{bitmapcombobox.png} -->
  53
  54     @see wxComboBox, wxChoice, wxOwnerDrawnComboBox, wxCommandEvent
  55 */
  56 class wxBitmapComboBox : public wxComboBox
  57 {
  58 public:
  59     /**
  60         Default ctor.
  61     */
  62     wxBitmapComboBox();
  63
  64     //@{
  65     /**
  66         Constructor, creating and showing a combobox.
  67
  68         @param parent
  69             Parent window. Must not be @NULL.
  70         @param id
  71             Window identifier. The value wxID_ANY indicates a default value.
  72         @param value
  73             Initial selection string. An empty string indicates no selection.
  74         @param pos
  75             Window position.
  76         @param size
  77             Window size. If wxDefaultSize is specified then the window is sized
  78             appropriately.
  79         @param n
  80             Number of strings with which to initialise the control.
  81         @param choices
  82             An array of strings with which to initialise the control.
  83         @param style
  84             Window style. See wxBitmapComboBox.
  85         @param validator
  86             Window validator.
  87         @param name
  88             Window name.
  89
  90         @see Create(), wxValidator
  91     */
  92     wxBitmapComboBox(wxWindow* parent, wxWindowID id,
  93                      const wxString& value = "",
  94                      const wxPoint& pos = wxDefaultPosition,
  95                      const wxSize& size = wxDefaultSize,
  96                      int n = 0,
  97                      const wxString choices[] = NULL,
  98                      long style = 0,
  99                      const wxValidator& validator = wxDefaultValidator,
 100                      const wxString& name = "comboBox");
 101     wxBitmapComboBox(wxWindow* parent, wxWindowID id,
 102                      const wxString& value,
 103                      const wxPoint& pos,
 104                      const wxSize& size,
 105                      const wxArrayString& choices,
 106                      long style = 0,
 107                      const wxValidator& validator = wxDefaultValidator,
 108                      const wxString& name = "comboBox");
 109     //@}
 110
 111     /**
 112         Destructor, destroying the combobox.
 113     */
 114     virtual ~wxBitmapComboBox();
 115
 116     /**
 117         Adds the item to the end of the combo box.
 118     */
 119     int Append(const wxString& item,
 120                const wxBitmap& bitmap = wxNullBitmap);
 121
 122     //@{
 123     /**
 124         Adds the item to the end of the combo box, associating the given, typed or
 125         untyped, client data pointer @a clientData with the item.
 126     */
 127     int Append(const wxString& item, const wxBitmap& bitmap,
 128                void* clientData);
 129     int Append(const wxString& item, const wxBitmap& bitmap,
 130                wxClientData* clientData);
 131     //@}
 132
 133     //@{
 134     /**
 135         Creates the combobox for two-step construction. Derived classes
 136         should call or replace this function. See wxBitmapComboBox()
 137         for further details.
 138     */
 139     bool Create(wxWindow* parent, wxWindowID id,
 140                 const wxString& value = "",
 141                 const wxPoint& pos = wxDefaultPosition,
 142                 const wxSize& size = wxDefaultSize,
 143                 int n, const wxString choices[],
 144                 long style = 0,
 145                 const wxValidator& validator = wxDefaultValidator,
 146                 const wxString& name = "comboBox");
 147     bool Create(wxWindow* parent, wxWindowID id,
 148                 const wxString& value,
 149                 const wxPoint& pos,
 150                 const wxSize& size,
 151                 const wxArrayString& choices,
 152                 long style = 0,
 153                 const wxValidator& validator = wxDefaultValidator,
 154                 const wxString& name = "comboBox");
 155     //@}
 156
 157     /**
 158         Returns size of bitmaps used in the list.
 159     */
 160     virtual wxSize GetBitmapSize() const;
 161
 162     /**
 163         Returns the bitmap of the item with the given index.
 164     */
 165     virtual wxBitmap GetItemBitmap(unsigned int n) const;
 166
 167     /**
 168         Inserts the item into the list before @a pos.
 169         Not valid for @c wxCB_SORT style, use Append() instead.
 170     */
 171     int Insert(const wxString& item, const wxBitmap& bitmap,
 172                unsigned int pos);
 173
 174     //@{
 175     /**
 176         Inserts the item into the list before pos, associating the given, typed or
 177         untyped, client data pointer with the item.
 178         Not valid for @c wxCB_SORT style, use Append() instead.
 179     */
 180
 181     int Insert(const wxString& item, const wxBitmap& bitmap,
 182                unsigned int pos,
 183                void* clientData);
 184     int Insert(const wxString& item, const wxBitmap& bitmap,
 185                unsigned int pos,
 186                wxClientData* clientData);
 187     //@}
 188
 189     /**
 190         Sets the bitmap for the given item.
 191     */
 192     virtual void SetItemBitmap(unsigned int n, const wxBitmap& bitmap);
 193 };
 194