contrib/src/gizmos/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 #ifdef __GNUG__
  11     #pragma implementation "editlbox.h"
  12 #endif
  13
  14 // For compilers that support precompilation, includes "wx/wx.h".
  15 #include "wx/wxprec.h"
  16
  17 #ifdef __BORLANDC__
  18     #pragma hdrstop
  19 #endif
  20
  21 // for all others, include the necessary headers (this file is usually all you
  22 // need because it includes almost all "standard" wxWindows headers)
  23 #ifndef WX_PRECOMP
  24     #include "wx/wx.h"
  25 #endif
  26
  27 #include "wx/gizmos/editlbox.h"
  28 #include "wx/sizer.h"
  29 #include "wx/listctrl.h"
  30
  31
  32
  33
  34 // list control with auto-resizable column:
  35 class CleverListCtrl : public wxListCtrl
  36 {
  37 public:
  38    CleverListCtrl(wxWindow *parent,
  39                   wxWindowID id = -1,
  40                   const wxPoint &pos = wxDefaultPosition,
  41                   const wxSize &size = wxDefaultSize,
  42                   long style = wxLC_ICON,
  43                   const wxValidator& validator = wxDefaultValidator,
  44                   const wxString &name = "listctrl")
  45          : wxListCtrl(parent, id, pos, size, style, validator, name)
  46     {
  47         CreateColumns();
  48     }
  49
  50     void CreateColumns()
  51     {
  52         InsertColumn(0, _T("item"));
  53         SizeColumns();
  54     }
  55
  56     void SizeColumns()
  57     {
  58          int w = GetSize().x;
  59 #ifdef __WXMSW__
  60          w -= wxSystemSettings::GetMetric(wxSYS_VSCROLL_X) + 6;
  61 #else
  62          w -= 2*wxSystemSettings::GetMetric(wxSYS_VSCROLL_X);
  63 #endif
  64          SetColumnWidth(0, w);
  65     }
  66
  67 private:
  68     DECLARE_EVENT_TABLE()
  69     void OnSize(wxSizeEvent& event)
  70     {
  71         SizeColumns();
  72         event.Skip();
  73     }
  74 };
  75
  76 BEGIN_EVENT_TABLE(CleverListCtrl, wxListCtrl)
  77    EVT_SIZE(CleverListCtrl::OnSize)
  78 END_EVENT_TABLE()
  79
  80 #include "eldel.xpm"
  81 #include "eldown.xpm"
  82 #include "eledit.xpm"
  83 #include "elnew.xpm"
  84 #include "elup.xpm"
  85
  86 IMPLEMENT_CLASS(wxEditableListBox, wxPanel)
  87
  88 enum
  89 {
  90     // ID value doesn't matter, it won't propagate out of wxEditableListBox
  91     // instance
  92     wxID_ELB_DELETE = wxID_HIGHEST + 1,
  93     wxID_ELB_NEW,
  94     wxID_ELB_UP,
  95     wxID_ELB_DOWN,
  96     wxID_ELB_EDIT,
  97     wxID_ELD_LISTCTRL
  98 };
  99
 100 BEGIN_EVENT_TABLE(wxEditableListBox, wxPanel)
 101     EVT_LIST_ITEM_SELECTED(wxID_ELD_LISTCTRL, wxEditableListBox::OnItemSelected)
 102     EVT_LIST_END_LABEL_EDIT(wxID_ELD_LISTCTRL, wxEditableListBox::OnEndLabelEdit)
 103     EVT_BUTTON(wxID_ELB_NEW, wxEditableListBox::OnNewItem)
 104     EVT_BUTTON(wxID_ELB_UP, wxEditableListBox::OnUpItem)
 105     EVT_BUTTON(wxID_ELB_DOWN, wxEditableListBox::OnDownItem)
 106     EVT_BUTTON(wxID_ELB_EDIT, wxEditableListBox::OnEditItem)
 107     EVT_BUTTON(wxID_ELB_DELETE, wxEditableListBox::OnDelItem)
 108 END_EVENT_TABLE()
 109
 110 wxEditableListBox::wxEditableListBox(wxWindow *parent, wxWindowID id,
 111                           const wxString& label,
 112                           const wxPoint& pos, const wxSize& size,
 113                           long style,
 114                           const wxString& name)
 115    : wxPanel(parent, id, pos, size, wxTAB_TRAVERSAL, name)
 116 {
 117     m_style = style;
 118     m_bEdit = m_bNew = m_bDel = m_bUp = m_bDown = NULL;
 119
 120     wxSizer *sizer = new wxBoxSizer(wxVERTICAL);
 121
 122     wxPanel *subp = new wxPanel(this, -1, wxDefaultPosition, wxDefaultSize,
 123                                 wxSUNKEN_BORDER | wxTAB_TRAVERSAL);
 124     wxSizer *subsizer = new wxBoxSizer(wxHORIZONTAL);
 125     subsizer->Add(new wxStaticText(subp, -1, label), 1, wxALIGN_CENTRE_VERTICAL | wxLEFT, 4);
 126
 127 #ifdef __WXMSW__
 128     #define BTN_BORDER 4
 129     // FIXME - why is this needed? There's some reason why sunken border is
 130     //         ignored by sizers in wxMSW but not in wxGTK that I can't
 131     //         figure out...
 132 #else
 133     #define BTN_BORDER 0
 134 #endif
 135
 136     if ( m_style & wxEL_ALLOW_EDIT )
 137     {
 138         m_bEdit = new wxBitmapButton(subp, wxID_ELB_EDIT, wxBitmap(eledit_xpm));
 139         subsizer->Add(m_bEdit, 0, wxALIGN_CENTRE_VERTICAL | wxTOP | wxBOTTOM, BTN_BORDER);
 140     }
 141
 142     if ( m_style & wxEL_ALLOW_NEW )
 143     {
 144         m_bNew = new wxBitmapButton(subp, wxID_ELB_NEW, wxBitmap(elnew_xpm));
 145         subsizer->Add(m_bNew, 0, wxALIGN_CENTRE_VERTICAL | wxTOP | wxBOTTOM, BTN_BORDER);
 146     }
 147
 148     if ( m_style & wxEL_ALLOW_DELETE )
 149     {
 150         m_bDel = new wxBitmapButton(subp, wxID_ELB_DELETE, wxBitmap(eldel_xpm));
 151         subsizer->Add(m_bDel, 0, wxALIGN_CENTRE_VERTICAL | wxTOP | wxBOTTOM, BTN_BORDER);
 152     }
 153
 154     m_bUp = new wxBitmapButton(subp, wxID_ELB_UP, wxBitmap(elup_xpm));
 155     subsizer->Add(m_bUp, 0, wxALIGN_CENTRE_VERTICAL | wxTOP | wxBOTTOM, BTN_BORDER);
 156
 157     m_bDown = new wxBitmapButton(subp, wxID_ELB_DOWN, wxBitmap(eldown_xpm));
 158     subsizer->Add(m_bDown, 0, wxALIGN_CENTRE_VERTICAL | wxTOP | wxBOTTOM, BTN_BORDER);
 159
 160 #if wxUSE_TOOLTIPS
 161     if ( m_bEdit ) m_bEdit->SetToolTip(wxT("Edit item"));
 162     if ( m_bNew ) m_bNew->SetToolTip(wxT("New item"));
 163     if ( m_bDel ) m_bDel->SetToolTip(wxT("Delete item"));
 164     m_bUp->SetToolTip(wxT("Move up"));
 165     m_bDown->SetToolTip(wxT("Move down"));
 166 #endif
 167
 168     subp->SetAutoLayout(TRUE);
 169     subp->SetSizer(subsizer);
 170     subsizer->Fit(subp);
 171
 172     sizer->Add(subp, 0, wxEXPAND);
 173
 174     long st = wxLC_REPORT | wxLC_NO_HEADER | wxLC_SINGLE_SEL | wxSUNKEN_BORDER;
 175     if ( style & wxEL_ALLOW_EDIT )
 176          st |= wxLC_EDIT_LABELS;
 177     m_listCtrl = new CleverListCtrl(this, wxID_ELD_LISTCTRL,
 178                                     wxDefaultPosition, wxDefaultSize, st);
 179     wxArrayString empty_ar;
 180     SetStrings(empty_ar);
 181
 182     sizer->Add(m_listCtrl, 1, wxEXPAND);
 183
 184     SetAutoLayout(TRUE);
 185     SetSizer(sizer);
 186     Layout();
 187 }
 188
 189 void wxEditableListBox::SetStrings(const wxArrayString& strings)
 190 {
 191     m_listCtrl->DeleteAllItems();
 192     size_t i;
 193
 194     for (i = 0; i < strings.GetCount(); i++)
 195         m_listCtrl->InsertItem(i, strings[i]);
 196
 197     m_listCtrl->InsertItem(strings.GetCount(), _T(""));
 198     m_listCtrl->SetItemState(0, wxLIST_STATE_SELECTED, wxLIST_STATE_SELECTED);
 199 }
 200
 201 void wxEditableListBox::GetStrings(wxArrayString& strings)
 202 {
 203     strings.Clear();
 204
 205     for (int i = 0; i < m_listCtrl->GetItemCount()-1; i++)
 206         strings.Add(m_listCtrl->GetItemText(i));
 207 }
 208
 209 void wxEditableListBox::OnItemSelected(wxListEvent& event)
 210 {
 211     m_selection = event.GetIndex();
 212     m_bUp->Enable(m_selection != 0 && m_selection < m_listCtrl->GetItemCount()-1);
 213     m_bDown->Enable(m_selection < m_listCtrl->GetItemCount()-2);
 214     if (m_style & wxEL_ALLOW_EDIT)
 215         m_bEdit->Enable(m_selection < m_listCtrl->GetItemCount()-1);
 216     if (m_style & wxEL_ALLOW_DELETE)
 217         m_bDel->Enable(m_selection < m_listCtrl->GetItemCount()-1);
 218 }
 219
 220 void wxEditableListBox::OnNewItem(wxCommandEvent& event)
 221 {
 222     m_listCtrl->SetItemState(m_listCtrl->GetItemCount()-1,
 223                              wxLIST_STATE_SELECTED, wxLIST_STATE_SELECTED);
 224     m_listCtrl->EditLabel(m_selection);
 225 }
 226
 227 void wxEditableListBox::OnEndLabelEdit(wxListEvent& event)
 228 {
 229     if ( event.GetIndex() == m_listCtrl->GetItemCount()-1 &&
 230          !event.GetText().IsEmpty() )
 231     {
 232         // The user edited last (empty) line, i.e. added new entry. We have to
 233         // add new empty line here so that adding one more line is still
 234         // possible:
 235         m_listCtrl->InsertItem(m_listCtrl->GetItemCount(), _T(""));
 236     }
 237 }
 238
 239 void wxEditableListBox::OnDelItem(wxCommandEvent& event)
 240 {
 241     m_listCtrl->DeleteItem(m_selection);
 242     m_listCtrl->SetItemState(m_selection,
 243                              wxLIST_STATE_SELECTED, wxLIST_STATE_SELECTED);
 244 }
 245
 246 void wxEditableListBox::OnEditItem(wxCommandEvent& event)
 247 {
 248     m_listCtrl->EditLabel(m_selection);
 249 }
 250
 251 void wxEditableListBox::OnUpItem(wxCommandEvent& event)
 252 {
 253     wxString t1, t2;
 254
 255     t1 = m_listCtrl->GetItemText(m_selection - 1);
 256     t2 = m_listCtrl->GetItemText(m_selection);
 257     m_listCtrl->SetItemText(m_selection - 1, t2);
 258     m_listCtrl->SetItemText(m_selection, t1);
 259     m_listCtrl->SetItemState(m_selection - 1,
 260                              wxLIST_STATE_SELECTED, wxLIST_STATE_SELECTED);
 261 }
 262
 263 void wxEditableListBox::OnDownItem(wxCommandEvent& event)
 264 {
 265     wxString t1, t2;
 266
 267     t1 = m_listCtrl->GetItemText(m_selection + 1);
 268     t2 = m_listCtrl->GetItemText(m_selection);
 269     m_listCtrl->SetItemText(m_selection + 1, t2);
 270     m_listCtrl->SetItemText(m_selection, t1);
 271     m_listCtrl->SetItemState(m_selection + 1,
 272                              wxLIST_STATE_SELECTED, wxLIST_STATE_SELECTED);
 273 }