src/cocoa/listbox.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        cocoa/listbox.mm
   3 // Purpose:     wxListBox
   4 // Author:      David Elliott
   5 // Modified by:
   6 // Created:     2003/03/18
   7 // RCS-ID:      $Id:
   8 // Copyright:   (c) 2003 David Elliott
   9 // Licence:     wxWidgets licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #if wxUSE_LISTBOX
  15
  16 #ifndef WX_PRECOMP
  17     #include "wx/log.h"
  18     #include "wx/app.h"
  19     #include "wx/listbox.h"
  20 #endif //WX_PRECOMP
  21
  22 #include "wx/cocoa/string.h"
  23 #include "wx/cocoa/autorelease.h"
  24 #include "wx/cocoa/NSTableDataSource.h"
  25
  26 #import <Foundation/NSArray.h>
  27 #import <Foundation/NSEnumerator.h>
  28 #import <AppKit/NSTableView.h>
  29 #import <AppKit/NSTableColumn.h>
  30
  31 IMPLEMENT_DYNAMIC_CLASS(wxListBox, wxControl)
  32 BEGIN_EVENT_TABLE(wxListBox, wxListBoxBase)
  33 END_EVENT_TABLE()
  34 WX_IMPLEMENT_COCOA_OWNER(wxListBox,NSTableView,NSControl,NSView)
  35
  36 bool wxListBox::Create(wxWindow *parent, wxWindowID winid,
  37             const wxPoint& pos,
  38             const wxSize& size,
  39             const wxArrayString& choices,
  40             long style,
  41             const wxValidator& validator,
  42             const wxString& name)
  43 {
  44     wxCArrayString chs(choices);
  45
  46     return Create(parent, winid, pos, size, chs.GetCount(), chs.GetStrings(),
  47                   style, validator, name);
  48 }
  49
  50 bool wxListBox::Create(wxWindow *parent, wxWindowID winid,
  51             const wxPoint& pos,
  52             const wxSize& size,
  53             int n, const wxString choices[],
  54             long style,
  55             const wxValidator& validator,
  56             const wxString& name)
  57 {
  58 /*
  59 wxLB_SINGLE
  60 Single-selection list.
  61
  62 wxLB_MULTIPLE
  63 Multiple-selection list: the user can toggle multiple items on and off.
  64
  65 wxLB_EXTENDED
  66 Extended-selection list: the user can select multiple items using the SHIFT key and the mouse or special key combinations.
  67
  68 wxLB_HSCROLL
  69 Create horizontal scrollbar if contents are too wide (Windows only).
  70
  71 wxLB_ALWAYS_SB
  72 Always show a vertical scrollbar.
  73
  74 wxLB_NEEDED_SB
  75 Only create a vertical scrollbar if needed.
  76
  77 wxLB_SORT
  78 The listbox contents are sorted in alphabetical order.
  79 */
  80     wxAutoNSAutoreleasePool pool;
  81     if(!CreateControl(parent,winid,pos,size,style,validator,name))
  82         return false;
  83
  84     // Provide the data
  85     m_cocoaItems = [[NSMutableArray arrayWithCapacity:n] retain];
  86     for(int i=0; i < n; i++)
  87     {
  88         [m_cocoaItems addObject: wxNSStringWithWxString(choices[i])];
  89     }
  90     // Remove everything
  91     m_itemClientData.Clear();
  92     // Initialize n elements to NULL
  93     m_itemClientData.SetCount(n,NULL);
  94
  95     SetNSTableView([[NSTableView alloc] initWithFrame: MakeDefaultNSRect(size)]);
  96     [m_cocoaNSView release];
  97     [GetNSTableView() setHeaderView: nil];
  98
  99     // Set up the data source
 100     m_cocoaDataSource = [[wxCocoaNSTableDataSource alloc] init];
 101     [GetNSTableView() setDataSource:m_cocoaDataSource];
 102
 103     // Add the single column
 104     NSTableColumn *tableColumn = [[NSTableColumn alloc] initWithIdentifier:nil];
 105     [GetNSTableView() addTableColumn: tableColumn];
 106     [tableColumn release];
 107
 108     [GetNSTableView() sizeToFit];
 109     // Finish
 110     if(m_parent)
 111         m_parent->CocoaAddChild(this);
 112     // NSTableView does WEIRD things with sizes.  Wrapping it in an
 113     // NSScrollView seems to be the only reasonable solution.
 114     CocoaCreateNSScrollView();
 115     SetInitialFrameRect(pos,size);
 116
 117     // Set up extended/multiple selection flags
 118     if ((style & wxLB_EXTENDED) || (style & wxLB_MULTIPLE))
 119         //diff is that mult requires shift down for multi selection
 120         [GetNSTableView() setAllowsMultipleSelection:true];
 121
 122     [GetNSTableView() setAllowsColumnSelection:false];
 123
 124     return true;
 125 }
 126
 127 wxListBox::~wxListBox()
 128 {
 129     [GetNSTableView() setDataSource: nil];
 130     [m_cocoaDataSource release];
 131     [m_cocoaItems release];
 132     DisassociateNSTableView(GetNSTableView());
 133 }
 134
 135 int wxListBox::CocoaDataSource_numberOfRows()
 136 {
 137     return [m_cocoaItems count];
 138 }
 139
 140 struct objc_object* wxListBox::CocoaDataSource_objectForTableColumn(
 141         WX_NSTableColumn tableColumn, int rowIndex)
 142 {
 143     return [m_cocoaItems objectAtIndex:rowIndex];
 144 }
 145
 146 // pure virtuals from wxListBoxBase
 147 bool wxListBox::IsSelected(int n) const
 148 {
 149     return [GetNSTableView() isRowSelected: n];
 150 }
 151
 152 void wxListBox::DoSetSelection(int n, bool select)
 153 {
 154     if(select)
 155         [GetNSTableView() selectRow: n byExtendingSelection:NO];
 156     else
 157         [GetNSTableView() deselectRow: n];
 158 }
 159
 160 int wxListBox::GetSelections(wxArrayInt& aSelections) const
 161 {
 162     aSelections.Clear();
 163     NSEnumerator *enumerator = [GetNSTableView() selectedRowEnumerator];
 164     while(NSNumber *num = [enumerator nextObject])
 165     {
 166         aSelections.Add([num intValue]);
 167     }
 168     return [GetNSTableView() numberOfSelectedRows];
 169 }
 170
 171 void wxListBox::DoInsertItems(const wxArrayString& items, int pos)
 172 {
 173     wxAutoNSAutoreleasePool pool;
 174
 175     for(int i=int(items.GetCount())-1; i >= 0; i--)
 176     {
 177         [m_cocoaItems insertObject: wxNSStringWithWxString(items[i])
 178             atIndex: pos];
 179         m_itemClientData.Insert(NULL,pos);
 180     }
 181     [GetNSTableView() reloadData];
 182 }
 183
 184 void wxListBox::DoSetItems(const wxArrayString& items, void **clientData)
 185 {
 186     wxAutoNSAutoreleasePool pool;
 187
 188     // Remove everything
 189     [m_cocoaItems removeAllObjects];
 190     m_itemClientData.Clear();
 191     // Provide the data
 192     for(size_t i=0; i < items.GetCount(); i++)
 193     {
 194         [m_cocoaItems addObject: wxNSStringWithWxString(items[i])];
 195         m_itemClientData.Add(clientData[i]);
 196     }
 197     [GetNSTableView() reloadData];
 198 }
 199
 200 void wxListBox::DoSetFirstItem(int n)
 201 {
 202     [m_cocoaItems exchangeObjectAtIndex:0 withObjectAtIndex:n];
 203     void* pOld = m_itemClientData[n];
 204     m_itemClientData[n] = m_itemClientData[0];
 205     m_itemClientData[0] = pOld;
 206     [GetNSTableView() reloadData];
 207 }
 208
 209
 210 // pure virtuals from wxItemContainer
 211     // deleting items
 212 void wxListBox::Clear()
 213 {
 214     [m_cocoaItems removeAllObjects];
 215     m_itemClientData.Clear();
 216     [GetNSTableView() reloadData];
 217 }
 218
 219 void wxListBox::Delete(int n)
 220 {
 221     [m_cocoaItems removeObjectAtIndex:n];
 222     m_itemClientData.RemoveAt(n);
 223     [GetNSTableView() reloadData];
 224 }
 225
 226     // accessing strings
 227 int wxListBox::GetCount() const
 228 {
 229     return [m_cocoaItems count];
 230 }
 231
 232 wxString wxListBox::GetString(int n) const
 233 {
 234     return wxStringWithNSString([m_cocoaItems objectAtIndex:n]);
 235 }
 236
 237 void wxListBox::SetString(int n, const wxString& s)
 238 {
 239     wxAutoNSAutoreleasePool pool;
 240     [m_cocoaItems removeObjectAtIndex:n];
 241     [m_cocoaItems insertObject: wxNSStringWithWxString(s) atIndex: n];
 242     [GetNSTableView() reloadData];
 243 }
 244
 245 int wxListBox::FindString(const wxString& s) const
 246 {
 247     wxAutoNSAutoreleasePool pool;
 248     return [m_cocoaItems indexOfObject:wxNSStringWithWxString(s)];
 249 }
 250
 251     // selection
 252 int wxListBox::GetSelection() const
 253 {
 254     return [GetNSTableView() selectedRow];
 255 }
 256
 257 int wxListBox::DoAppend(const wxString& item)
 258 {
 259     wxAutoNSAutoreleasePool pool;
 260     [m_cocoaItems addObject:wxNSStringWithWxString(item)];
 261     [GetNSTableView() reloadData];
 262     m_itemClientData.Add(NULL);
 263     return [m_cocoaItems count];
 264 }
 265
 266 void wxListBox::DoSetItemClientData(int n, void* clientData)
 267 {
 268     m_itemClientData[n] = clientData;
 269 }
 270
 271 void* wxListBox::DoGetItemClientData(int n) const
 272 {
 273     return m_itemClientData[n];
 274 }
 275
 276 void wxListBox::DoSetItemClientObject(int n, wxClientData* clientData)
 277 {
 278     m_itemClientData[n] = (void*) clientData;
 279 }
 280
 281 wxClientData* wxListBox::DoGetItemClientObject(int n) const
 282 {
 283     return (wxClientData*) m_itemClientData[n];
 284 }
 285
 286 #endif