src/common/listctrlcmn.cpp

   1 ////////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/listctrlcmn.cpp
   3 // Purpose:     Common defines for wxListCtrl and wxListCtrl-based classes.
   4 // Author:      Kevin Ollivier
   5 // Created:     09/15/06
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) Kevin Ollivier
   8 // Licence:     wxWindows licence
   9 ////////////////////////////////////////////////////////////////////////////////
  10
  11 // =============================================================================
  12 // declarations
  13 // =============================================================================
  14
  15 // -----------------------------------------------------------------------------
  16 // headers
  17 // -----------------------------------------------------------------------------
  18
  19 // For compilers that support precompilation, includes "wx.h".
  20 #include "wx/wxprec.h"
  21
  22 #ifdef __BORLANDC__
  23     #pragma hdrstop
  24 #endif
  25
  26 #if wxUSE_LISTCTRL
  27
  28 #include "wx/listctrl.h"
  29
  30 #ifndef WX_PRECOMP
  31     #include "wx/dcclient.h"
  32 #endif
  33
  34 const char wxListCtrlNameStr[] = "listCtrl";
  35
  36 // ListCtrl events
  37 wxDEFINE_EVENT( wxEVT_LIST_BEGIN_DRAG, wxListEvent );
  38 wxDEFINE_EVENT( wxEVT_LIST_BEGIN_RDRAG, wxListEvent );
  39 wxDEFINE_EVENT( wxEVT_LIST_BEGIN_LABEL_EDIT, wxListEvent );
  40 wxDEFINE_EVENT( wxEVT_LIST_END_LABEL_EDIT, wxListEvent );
  41 wxDEFINE_EVENT( wxEVT_LIST_DELETE_ITEM, wxListEvent );
  42 wxDEFINE_EVENT( wxEVT_LIST_DELETE_ALL_ITEMS, wxListEvent );
  43 wxDEFINE_EVENT( wxEVT_LIST_ITEM_SELECTED, wxListEvent );
  44 wxDEFINE_EVENT( wxEVT_LIST_ITEM_DESELECTED, wxListEvent );
  45 wxDEFINE_EVENT( wxEVT_LIST_KEY_DOWN, wxListEvent );
  46 wxDEFINE_EVENT( wxEVT_LIST_INSERT_ITEM, wxListEvent );
  47 wxDEFINE_EVENT( wxEVT_LIST_COL_CLICK, wxListEvent );
  48 wxDEFINE_EVENT( wxEVT_LIST_COL_RIGHT_CLICK, wxListEvent );
  49 wxDEFINE_EVENT( wxEVT_LIST_COL_BEGIN_DRAG, wxListEvent );
  50 wxDEFINE_EVENT( wxEVT_LIST_COL_DRAGGING, wxListEvent );
  51 wxDEFINE_EVENT( wxEVT_LIST_COL_END_DRAG, wxListEvent );
  52 wxDEFINE_EVENT( wxEVT_LIST_ITEM_RIGHT_CLICK, wxListEvent );
  53 wxDEFINE_EVENT( wxEVT_LIST_ITEM_MIDDLE_CLICK, wxListEvent );
  54 wxDEFINE_EVENT( wxEVT_LIST_ITEM_ACTIVATED, wxListEvent );
  55 wxDEFINE_EVENT( wxEVT_LIST_ITEM_FOCUSED, wxListEvent );
  56 wxDEFINE_EVENT( wxEVT_LIST_CACHE_HINT, wxListEvent );
  57
  58 // -----------------------------------------------------------------------------
  59 // XTI
  60 // -----------------------------------------------------------------------------
  61
  62 wxDEFINE_FLAGS( wxListCtrlStyle )
  63 wxBEGIN_FLAGS( wxListCtrlStyle )
  64 // new style border flags, we put them first to
  65 // use them for streaming out
  66 wxFLAGS_MEMBER(wxBORDER_SIMPLE)
  67 wxFLAGS_MEMBER(wxBORDER_SUNKEN)
  68 wxFLAGS_MEMBER(wxBORDER_DOUBLE)
  69 wxFLAGS_MEMBER(wxBORDER_RAISED)
  70 wxFLAGS_MEMBER(wxBORDER_STATIC)
  71 wxFLAGS_MEMBER(wxBORDER_NONE)
  72
  73 // old style border flags
  74 wxFLAGS_MEMBER(wxSIMPLE_BORDER)
  75 wxFLAGS_MEMBER(wxSUNKEN_BORDER)
  76 wxFLAGS_MEMBER(wxDOUBLE_BORDER)
  77 wxFLAGS_MEMBER(wxRAISED_BORDER)
  78 wxFLAGS_MEMBER(wxSTATIC_BORDER)
  79 wxFLAGS_MEMBER(wxBORDER)
  80
  81 // standard window styles
  82 wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
  83 wxFLAGS_MEMBER(wxCLIP_CHILDREN)
  84 wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
  85 wxFLAGS_MEMBER(wxWANTS_CHARS)
  86 wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
  87 wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
  88 wxFLAGS_MEMBER(wxVSCROLL)
  89 wxFLAGS_MEMBER(wxHSCROLL)
  90
  91 wxFLAGS_MEMBER(wxLC_LIST)
  92 wxFLAGS_MEMBER(wxLC_REPORT)
  93 wxFLAGS_MEMBER(wxLC_ICON)
  94 wxFLAGS_MEMBER(wxLC_SMALL_ICON)
  95 wxFLAGS_MEMBER(wxLC_ALIGN_TOP)
  96 wxFLAGS_MEMBER(wxLC_ALIGN_LEFT)
  97 wxFLAGS_MEMBER(wxLC_AUTOARRANGE)
  98 wxFLAGS_MEMBER(wxLC_USER_TEXT)
  99 wxFLAGS_MEMBER(wxLC_EDIT_LABELS)
 100 wxFLAGS_MEMBER(wxLC_NO_HEADER)
 101 wxFLAGS_MEMBER(wxLC_SINGLE_SEL)
 102 wxFLAGS_MEMBER(wxLC_SORT_ASCENDING)
 103 wxFLAGS_MEMBER(wxLC_SORT_DESCENDING)
 104 wxFLAGS_MEMBER(wxLC_VIRTUAL)
 105 wxEND_FLAGS( wxListCtrlStyle )
 106
 107 #if ((!defined(__WXMSW__) && !(defined(__WXMAC__) && wxOSX_USE_CARBON)) || defined(__WXUNIVERSAL__))
 108 wxIMPLEMENT_DYNAMIC_CLASS_XTI(wxListCtrl, wxGenericListCtrl, "wx/listctrl.h")
 109 #else
 110 wxIMPLEMENT_DYNAMIC_CLASS_XTI(wxListCtrl, wxControl, "wx/listctrl.h")
 111 #endif
 112
 113 wxBEGIN_PROPERTIES_TABLE(wxListCtrl)
 114 wxEVENT_PROPERTY( TextUpdated, wxEVT_TEXT, wxCommandEvent )
 115
 116 wxPROPERTY_FLAGS( WindowStyle, wxListCtrlStyle, long, SetWindowStyleFlag, \
 117                  GetWindowStyleFlag, wxEMPTY_PARAMETER_VALUE, 0 /*flags*/, \
 118                  wxT("Helpstring"), wxT("group")) // style
 119 wxEND_PROPERTIES_TABLE()
 120
 121 wxEMPTY_HANDLERS_TABLE(wxListCtrl)
 122
 123 wxCONSTRUCTOR_5( wxListCtrl, wxWindow*, Parent, wxWindowID, Id, \
 124                 wxPoint, Position, wxSize, Size, long, WindowStyle )
 125
 126 /*
 127  TODO : Expose more information of a list's layout etc. via appropriate objects
 128  (see NotebookPageInfo)
 129  */
 130
 131 IMPLEMENT_DYNAMIC_CLASS(wxListView, wxListCtrl)
 132 IMPLEMENT_DYNAMIC_CLASS(wxListItem, wxObject)
 133 IMPLEMENT_DYNAMIC_CLASS(wxListEvent, wxNotifyEvent)
 134
 135 // ----------------------------------------------------------------------------
 136 // wxListCtrlBase implementation
 137 // ----------------------------------------------------------------------------
 138
 139 long
 140 wxListCtrlBase::AppendColumn(const wxString& heading,
 141                              int format,
 142                              int width)
 143 {
 144     return InsertColumn(GetColumnCount(), heading, format, width);
 145 }
 146
 147 long
 148 wxListCtrlBase::InsertColumn(long col,
 149                              const wxString& heading,
 150                              int format,
 151                              int width)
 152 {
 153     wxListItem item;
 154     item.m_mask = wxLIST_MASK_TEXT | wxLIST_MASK_FORMAT;
 155     item.m_text = heading;
 156     if ( width >= 0
 157             || width == wxLIST_AUTOSIZE
 158                 || width == wxLIST_AUTOSIZE_USEHEADER )
 159     {
 160         item.m_mask |= wxLIST_MASK_WIDTH;
 161         item.m_width = width;
 162     }
 163     item.m_format = format;
 164
 165     return InsertColumn(col, item);
 166 }
 167
 168 long wxListCtrlBase::InsertColumn(long col, const wxListItem& info)
 169 {
 170     long rc = DoInsertColumn(col, info);
 171     if ( rc != -1 )
 172     {
 173         // As our best size calculation depends on the column headers,
 174         // invalidate the previously cached best size when a column is added.
 175         InvalidateBestSize();
 176     }
 177
 178     return rc;
 179 }
 180
 181 wxSize wxListCtrlBase::DoGetBestClientSize() const
 182 {
 183     // There is no obvious way to determine the best size in icon and list
 184     // modes so just don't do it for now.
 185     if ( !InReportView() )
 186         return wxControl::DoGetBestClientSize();
 187
 188     int totalWidth;
 189     wxClientDC dc(const_cast<wxListCtrlBase*>(this));
 190
 191     // In report mode, we use only the column headers, not items, to determine
 192     // the best width. The reason for this is that it's easier (we can't just
 193     // iterate over all items, especially not in a virtual control, so we'd
 194     // have to do something relatively complicated such as checking the size of
 195     // some items in the beginning and the end only) and also because the
 196     // columns are usually static while the list contents is dynamic so it
 197     // usually doesn't make much sense to adjust the control size to it anyhow.
 198     // And finally, scrollbars can always be used with the items while the
 199     // headers are just truncated if there is not enough place for them.
 200     const int columns = GetColumnCount();
 201     if ( HasFlag(wxLC_NO_HEADER) || !columns )
 202     {
 203         // Use some arbitrary width.
 204         totalWidth = 50*dc.GetCharWidth();
 205     }
 206     else // We do have columns, use them to determine the best width.
 207     {
 208         totalWidth = 0;
 209         for ( int col = 0; col < columns; col++ )
 210         {
 211             totalWidth += GetColumnWidth(col);
 212         }
 213     }
 214
 215     // Use some arbitrary height, there is no good way to determine it.
 216     return wxSize(totalWidth, 10*dc.GetCharHeight());
 217 }
 218
 219 void wxListCtrlBase::SetAlternateRowColour(const wxColour& colour)
 220 {
 221     wxASSERT(HasFlag(wxLC_VIRTUAL));
 222     m_alternateRowColour.SetBackgroundColour(colour);
 223 }
 224
 225 void wxListCtrlBase::EnableAlternateRowColours(bool enable)
 226 {
 227     if ( enable )
 228     {
 229         // This code is copied from wxDataViewMainWindow::OnPaint()
 230
 231         // Determine the alternate rows colour automatically from the
 232         // background colour.
 233         const wxColour bgColour = GetBackgroundColour();
 234
 235         // Depending on the background, alternate row color
 236         // will be 3% more dark or 50% brighter.
 237         int alpha = bgColour.GetRGB() > 0x808080 ? 97 : 150;
 238         SetAlternateRowColour(bgColour.ChangeLightness(alpha));
 239     }
 240     else // Disable striping by setting invalid alternative colour.
 241     {
 242         SetAlternateRowColour(wxColour());
 243     }
 244 }
 245
 246 wxListItemAttr *wxListCtrlBase::OnGetItemAttr(long item) const
 247 {
 248     return (m_alternateRowColour.GetBackgroundColour().IsOk() && (item % 2))
 249         ? wxConstCast(&m_alternateRowColour, wxListItemAttr)
 250         : NULL; // no attributes by default
 251 }
 252
 253 #endif // wxUSE_LISTCTRL