src/generic/editlbox.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        editlbox.cpp
   3 // Purpose:     ListBox with editable items
   4 // Author:      Vaclav Slavik
   5 // RCS-ID:      $Id$
   6 // Copyright:   (c) Vaclav Slavik
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx/wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #ifdef __BORLANDC__
  14     #pragma hdrstop
  15 #endif
  16
  17 #if wxUSE_EDITABLELISTBOX
  18
  19 // for all others, include the necessary headers (this file is usually all you
  20 // need because it includes almost all "standard" wxWidgets headers)
  21 #ifndef WX_PRECOMP
  22     #include "wx/wx.h"
  23 #endif
  24
  25 #include "wx/editlbox.h"
  26 #include "wx/sizer.h"
  27 #include "wx/listctrl.h"
  28
  29 // ============================================================================
  30 // implementation
  31 // ============================================================================
  32
  33 const char wxEditableListBoxNameStr[] = "editableListBox";
  34
  35 static const char * eledit_xpm[] = {
  36 "16 16 3 1",
  37 "   c None",
  38 ".  c #000000",
  39 "+  c #00007F",
  40 "                ",
  41 "                ",
  42 "      .. ..     ",
  43 "        .       ",
  44 "        .       ",
  45 "  ++++  .  ++++ ",
  46 "     ++ . ++  ++",
  47 "  +++++ . ++++++",
  48 " ++  ++ . ++    ",
  49 " ++  ++ . ++  ++",
  50 "  +++++ .  ++++ ",
  51 "        .       ",
  52 "        .       ",
  53 "      .. ..     ",
  54 "                ",
  55 "                "};
  56
  57 static const char * elnew_xpm[] = {
  58 "16 16 5 1",
  59 "   c None",
  60 ".  c #7F7F7F",
  61 "+  c #FFFFFF",
  62 "@  c #FFFF00",
  63 "#  c #000000",
  64 "                ",
  65 "                ",
  66 " .  .+ .@       ",
  67 "  . .@.@# # #   ",
  68 "  @.@+....   #  ",
  69 " ... @@         ",
  70 "  @ . @.     #  ",
  71 " .# .@          ",
  72 "    .        #  ",
  73 "  #             ",
  74 "             #  ",
  75 "  #             ",
  76 "             #  ",
  77 "  # # # # # #   ",
  78 "                ",
  79 "                "};
  80
  81 static const char * eldel_xpm[] = {
  82 "16 16 3 1",
  83 "   c None",
  84 ".  c #7F0000",
  85 "+  c #FFFFFF",
  86 "                ",
  87 "                ",
  88 "                ",
  89 " ..+        ..+ ",
  90 " ....+     ..+  ",
  91 "  ....+   ..+   ",
  92 "    ...+ .+     ",
  93 "     .....+     ",
  94 "      ...+      ",
  95 "     .....+     ",
  96 "    ...+ ..+    ",
  97 "   ...+   ..+   ",
  98 "  ...+     .+   ",
  99 "  ...+      .+  ",
 100 "   .         .  ",
 101 "                "};
 102
 103 static const char * eldown_xpm[] = {
 104 "16 16 2 1",
 105 "   c None",
 106 ".  c #000000",
 107 "                ",
 108 "                ",
 109 "         ...    ",
 110 "        ...     ",
 111 "       ...      ",
 112 "       ...      ",
 113 "       ...      ",
 114 "       ...      ",
 115 "   ...........  ",
 116 "    .........   ",
 117 "     .......    ",
 118 "      .....     ",
 119 "       ...      ",
 120 "        .       ",
 121 "                ",
 122 "                "};
 123
 124 static const char * elup_xpm[] = {
 125 "16 16 2 1",
 126 "   c None",
 127 ".  c #000000",
 128 "                ",
 129 "        .       ",
 130 "       ...      ",
 131 "      .....     ",
 132 "     .......    ",
 133 "    .........   ",
 134 "   ...........  ",
 135 "       ...      ",
 136 "       ...      ",
 137 "       ...      ",
 138 "       ...      ",
 139 "      ...       ",
 140 "     ...        ",
 141 "                ",
 142 "                ",
 143 "                "};
 144
 145 // list control with auto-resizable column:
 146 class CleverListCtrl : public wxListCtrl
 147 {
 148 public:
 149    CleverListCtrl(wxWindow *parent,
 150                   wxWindowID id = wxID_ANY,
 151                   const wxPoint &pos = wxDefaultPosition,
 152                   const wxSize &size = wxDefaultSize,
 153                   long style = wxLC_ICON,
 154                   const wxValidator& validator = wxDefaultValidator,
 155                   const wxString &name = wxListCtrlNameStr)
 156          : wxListCtrl(parent, id, pos, size, style, validator, name)
 157     {
 158         CreateColumns();
 159     }
 160
 161     void CreateColumns()
 162     {
 163         InsertColumn(0, wxT("item"));
 164         SizeColumns();
 165     }
 166
 167     void SizeColumns()
 168     {
 169          int w = GetSize().x;
 170 #ifdef __WXMSW__
 171          w -= wxSystemSettings::GetMetric(wxSYS_VSCROLL_X) + 6;
 172 #else
 173          w -= 2*wxSystemSettings::GetMetric(wxSYS_VSCROLL_X);
 174 #endif
 175          if (w < 0) w = 0;
 176          SetColumnWidth(0, w);
 177     }
 178
 179 private:
 180     DECLARE_EVENT_TABLE()
 181     void OnSize(wxSizeEvent& event)
 182     {
 183         SizeColumns();
 184         event.Skip();
 185     }
 186 };
 187
 188 BEGIN_EVENT_TABLE(CleverListCtrl, wxListCtrl)
 189    EVT_SIZE(CleverListCtrl::OnSize)
 190 END_EVENT_TABLE()
 191
 192
 193 // ----------------------------------------------------------------------------
 194 // wxEditableListBox
 195 // ----------------------------------------------------------------------------
 196
 197 IMPLEMENT_CLASS(wxEditableListBox, wxPanel)
 198
 199 // NB: generate the IDs at runtime to avoid conflict with XRCID values,
 200 //     they could cause XRCCTRL() failures in XRC-based dialogs
 201 const wxWindowIDRef wxID_ELB_DELETE = wxWindow::NewControlId();
 202 const wxWindowIDRef wxID_ELB_EDIT = wxWindow::NewControlId();
 203 const wxWindowIDRef wxID_ELB_NEW = wxWindow::NewControlId();
 204 const wxWindowIDRef wxID_ELB_UP = wxWindow::NewControlId();
 205 const wxWindowIDRef wxID_ELB_DOWN = wxWindow::NewControlId();
 206 const wxWindowIDRef wxID_ELB_LISTCTRL = wxWindow::NewControlId();
 207
 208 BEGIN_EVENT_TABLE(wxEditableListBox, wxPanel)
 209     EVT_LIST_ITEM_SELECTED(wxID_ELB_LISTCTRL, wxEditableListBox::OnItemSelected)
 210     EVT_LIST_END_LABEL_EDIT(wxID_ELB_LISTCTRL, wxEditableListBox::OnEndLabelEdit)
 211     EVT_BUTTON(wxID_ELB_NEW, wxEditableListBox::OnNewItem)
 212     EVT_BUTTON(wxID_ELB_UP, wxEditableListBox::OnUpItem)
 213     EVT_BUTTON(wxID_ELB_DOWN, wxEditableListBox::OnDownItem)
 214     EVT_BUTTON(wxID_ELB_EDIT, wxEditableListBox::OnEditItem)
 215     EVT_BUTTON(wxID_ELB_DELETE, wxEditableListBox::OnDelItem)
 216 END_EVENT_TABLE()
 217
 218 bool wxEditableListBox::Create(wxWindow *parent, wxWindowID id,
 219                           const wxString& label,
 220                           const wxPoint& pos, const wxSize& size,
 221                           long style,
 222                           const wxString& name)
 223 {
 224     if (!wxPanel::Create(parent, id, pos, size, wxTAB_TRAVERSAL, name))
 225         return false;
 226
 227     m_style = style;
 228
 229     wxSizer *sizer = new wxBoxSizer(wxVERTICAL);
 230
 231     wxPanel *subp = new wxPanel(this, wxID_ANY, wxDefaultPosition, wxDefaultSize,
 232                                 wxSUNKEN_BORDER | wxTAB_TRAVERSAL);
 233     wxSizer *subsizer = new wxBoxSizer(wxHORIZONTAL);
 234     subsizer->Add(new wxStaticText(subp, wxID_ANY, label), 1, wxALIGN_CENTRE_VERTICAL | wxLEFT, 4);
 235
 236 #ifdef __WXMSW__
 237     #define BTN_BORDER 4
 238     // FIXME - why is this needed? There's some reason why sunken border is
 239     //         ignored by sizers in wxMSW but not in wxGTK that I can't
 240     //         figure out...
 241 #else
 242     #define BTN_BORDER 0
 243 #endif
 244
 245     if ( m_style & wxEL_ALLOW_EDIT )
 246     {
 247         m_bEdit = new wxBitmapButton(subp, wxID_ELB_EDIT, wxBitmap(eledit_xpm));
 248         subsizer->Add(m_bEdit, 0, wxALIGN_CENTRE_VERTICAL | wxTOP | wxBOTTOM, BTN_BORDER);
 249     }
 250
 251     if ( m_style & wxEL_ALLOW_NEW )
 252     {
 253         m_bNew = new wxBitmapButton(subp, wxID_ELB_NEW, wxBitmap(elnew_xpm));
 254         subsizer->Add(m_bNew, 0, wxALIGN_CENTRE_VERTICAL | wxTOP | wxBOTTOM, BTN_BORDER);
 255     }
 256
 257     if ( m_style & wxEL_ALLOW_DELETE )
 258     {
 259         m_bDel = new wxBitmapButton(subp, wxID_ELB_DELETE, wxBitmap(eldel_xpm));
 260         subsizer->Add(m_bDel, 0, wxALIGN_CENTRE_VERTICAL | wxTOP | wxBOTTOM, BTN_BORDER);
 261     }
 262
 263     if (!(m_style & wxEL_NO_REORDER))
 264     {
 265         m_bUp = new wxBitmapButton(subp, wxID_ELB_UP, wxBitmap(elup_xpm));
 266         subsizer->Add(m_bUp, 0, wxALIGN_CENTRE_VERTICAL | wxTOP | wxBOTTOM, BTN_BORDER);
 267
 268         m_bDown = new wxBitmapButton(subp, wxID_ELB_DOWN, wxBitmap(eldown_xpm));
 269         subsizer->Add(m_bDown, 0, wxALIGN_CENTRE_VERTICAL | wxTOP | wxBOTTOM, BTN_BORDER);
 270     }
 271
 272 #if wxUSE_TOOLTIPS
 273     if ( m_bEdit ) m_bEdit->SetToolTip(_("Edit item"));
 274     if ( m_bNew ) m_bNew->SetToolTip(_("New item"));
 275     if ( m_bDel ) m_bDel->SetToolTip(_("Delete item"));
 276     if ( m_bUp ) m_bUp->SetToolTip(_("Move up"));
 277     if ( m_bDown ) m_bDown->SetToolTip(_("Move down"));
 278 #endif
 279
 280     subp->SetSizer(subsizer);
 281     subsizer->Fit(subp);
 282
 283     sizer->Add(subp, 0, wxEXPAND);
 284
 285     long st = wxLC_REPORT | wxLC_NO_HEADER | wxLC_SINGLE_SEL | wxSUNKEN_BORDER;
 286     if ( style & wxEL_ALLOW_EDIT )
 287          st |= wxLC_EDIT_LABELS;
 288     m_listCtrl = new CleverListCtrl(this, wxID_ELB_LISTCTRL,
 289                                     wxDefaultPosition, wxDefaultSize, st);
 290     wxArrayString empty_ar;
 291     SetStrings(empty_ar);
 292
 293     sizer->Add(m_listCtrl, 1, wxEXPAND);
 294
 295     SetSizer(sizer);
 296     Layout();
 297
 298     return true;
 299 }
 300
 301 void wxEditableListBox::SetStrings(const wxArrayString& strings)
 302 {
 303     m_listCtrl->DeleteAllItems();
 304     size_t i;
 305
 306     for (i = 0; i < strings.GetCount(); i++)
 307         m_listCtrl->InsertItem(i, strings[i]);
 308
 309     m_listCtrl->InsertItem(strings.GetCount(), wxEmptyString);
 310     m_listCtrl->SetItemState(0, wxLIST_STATE_SELECTED, wxLIST_STATE_SELECTED);
 311 }
 312
 313 void wxEditableListBox::GetStrings(wxArrayString& strings) const
 314 {
 315     strings.Clear();
 316
 317     for (int i = 0; i < m_listCtrl->GetItemCount()-1; i++)
 318         strings.Add(m_listCtrl->GetItemText(i));
 319 }
 320
 321 void wxEditableListBox::OnItemSelected(wxListEvent& event)
 322 {
 323     m_selection = event.GetIndex();
 324     if (!(m_style & wxEL_NO_REORDER))
 325     {
 326         m_bUp->Enable(m_selection != 0 && m_selection < m_listCtrl->GetItemCount()-1);
 327         m_bDown->Enable(m_selection < m_listCtrl->GetItemCount()-2);
 328     }
 329
 330     if (m_style & wxEL_ALLOW_EDIT)
 331         m_bEdit->Enable(m_selection < m_listCtrl->GetItemCount()-1);
 332     if (m_style & wxEL_ALLOW_DELETE)
 333         m_bDel->Enable(m_selection < m_listCtrl->GetItemCount()-1);
 334 }
 335
 336 void wxEditableListBox::OnNewItem(wxCommandEvent& WXUNUSED(event))
 337 {
 338     m_listCtrl->SetItemState(m_listCtrl->GetItemCount()-1,
 339                              wxLIST_STATE_SELECTED, wxLIST_STATE_SELECTED);
 340     m_listCtrl->EditLabel(m_selection);
 341 }
 342
 343 void wxEditableListBox::OnEndLabelEdit(wxListEvent& event)
 344 {
 345     if ( event.GetIndex() == m_listCtrl->GetItemCount()-1 &&
 346          !event.GetText().empty() )
 347     {
 348         // The user edited last (empty) line, i.e. added new entry. We have to
 349         // add new empty line here so that adding one more line is still
 350         // possible:
 351         m_listCtrl->InsertItem(m_listCtrl->GetItemCount(), wxEmptyString);
 352
 353         // Simulate a wxEVT_COMMAND_LIST_ITEM_SELECTED event for the new item,
 354         // so that the buttons are enabled/disabled properly
 355         wxListEvent selectionEvent(wxEVT_COMMAND_LIST_ITEM_SELECTED, m_listCtrl->GetId());
 356         selectionEvent.m_itemIndex = event.GetIndex();
 357         m_listCtrl->GetEventHandler()->ProcessEvent(selectionEvent);
 358     }
 359 }
 360
 361 void wxEditableListBox::OnDelItem(wxCommandEvent& WXUNUSED(event))
 362 {
 363     m_listCtrl->DeleteItem(m_selection);
 364     m_listCtrl->SetItemState(m_selection,
 365                              wxLIST_STATE_SELECTED, wxLIST_STATE_SELECTED);
 366 }
 367
 368 void wxEditableListBox::OnEditItem(wxCommandEvent& WXUNUSED(event))
 369 {
 370     m_listCtrl->EditLabel(m_selection);
 371 }
 372
 373 void wxEditableListBox::OnUpItem(wxCommandEvent& WXUNUSED(event))
 374 {
 375     wxString t1, t2;
 376
 377     t1 = m_listCtrl->GetItemText(m_selection - 1);
 378     t2 = m_listCtrl->GetItemText(m_selection);
 379     m_listCtrl->SetItemText(m_selection - 1, t2);
 380     m_listCtrl->SetItemText(m_selection, t1);
 381     m_listCtrl->SetItemState(m_selection - 1,
 382                              wxLIST_STATE_SELECTED, wxLIST_STATE_SELECTED);
 383 }
 384
 385 void wxEditableListBox::OnDownItem(wxCommandEvent& WXUNUSED(event))
 386 {
 387     wxString t1, t2;
 388
 389     t1 = m_listCtrl->GetItemText(m_selection + 1);
 390     t2 = m_listCtrl->GetItemText(m_selection);
 391     m_listCtrl->SetItemText(m_selection + 1, t2);
 392     m_listCtrl->SetItemText(m_selection, t1);
 393     m_listCtrl->SetItemState(m_selection + 1,
 394                              wxLIST_STATE_SELECTED, wxLIST_STATE_SELECTED);
 395 }
 396
 397 #endif // wxUSE_EDITABLELISTBOX