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1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/cocoa/combobox.mm
3 // Purpose: wxComboBox
4 // Author: Ryan Norton
5 // Modified by:
6 // Created: 2005/02/16
7 // RCS-ID: $Id$
8 // Copyright: (c) 2003 David Elliott
9 // Licence: wxWidgets licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 //
13 // Impl notes:
14 // There is no custom data source because doing so unnecessarily sacrifices
15 // some native autocompletion behavior (we would have to make our own -
16 // the SimpleComboBox sample does so in the developer folder that
17 // comes with OSX). One reason you might want this would be to have
18 // only one array or be able to display numbers returned by an NSNumber
19 // from the methods.
20 //
21 // One problem though is that wxCB_SORT isn't implemented...
22 //
23 // Also, not sure if it is correctly getting text field events since
24 // I'm using SetNSComboBox instead of SetNSTextField
25 //
26 // doWxEvent is really hackish... but since there's only one event...
27 //
28 // Ideas for future improvement - other notes:
29 // Combox w/o wxCB_DROPDOWN doesn't seem to be implementable
30 //wxCB_READONLY Same as wxCB_DROPDOWN but only the strings specified as the combobox choices can be selected, it is impossible to select (even from a program) a string which is not in the choices list.
31 //wxCB_SORT is possible with data source
32 //
33 // setIntercellSpacing:/setItemHeight: to autoadjust to number of inserted items?
34 //
35 /*
36 //example of autocompletion from SimpleComboBox Example
37 // ==========================================================
38 // Combo box data source methods
39 // ==========================================================
40
41 - (int)numberOfItemsInComboBox:(NSComboBox *)aComboBox {
42 return [genres count];
43 }
44 - (id)comboBox:(NSComboBox *)aComboBox objectValueForItemAtIndex:(int)index {
45 return [genres objectAtIndex:index];
46 }
47 - (unsigned int)comboBox:(NSComboBox *)aComboBox indexOfItemWithStringValue:(NSString *)string {
48 return [genres indexOfObject: string];
49 }
50
51 - (NSString *) firstGenreMatchingPrefix:(NSString *)prefix {
52 NSString *string = nil;
53 NSString *lowercasePrefix = [prefix lowercaseString];
54 NSEnumerator *stringEnum = [genres objectEnumerator];
55 while ((string = [stringEnum nextObject])) {
56 if ([[string lowercaseString] hasPrefix: lowercasePrefix]) return string;
57 }
58 return nil;
59 }
60
61 - (NSString *)comboBox:(NSComboBox *)aComboBox completedString:(NSString *)inputString {
62 // This method is received after each character typed by the user, because we have checked the "completes" flag for genreComboBox in IB.
63 // Given the inputString the user has typed, see if we can find a genre with the prefix, and return it as the suggested complete string.
64 NSString *candidate = [self firstGenreMatchingPrefix: inputString];
65 return (candidate ? candidate : inputString);
66 }
67 */
68
69 // ============================================================================
70 // declarations
71 // ============================================================================
72
73 // ----------------------------------------------------------------------------
74 // headers
75 // ----------------------------------------------------------------------------
76
77 #include "wx/wxprec.h"
78
79 #if wxUSE_COMBOBOX
80
81 #include "wx/combobox.h"
82
83 #include "wx/cocoa/objc/objc_uniquifying.h"
84
85 #ifndef WX_PRECOMP
86 #include "wx/window.h"
87 #include "wx/log.h"
88 #include "wx/app.h"
89 #endif // WX_PRECOMP
90
91 #import <AppKit/NSComboBox.h>
92 #import <Foundation/NSNotification.h>
93 #import <Foundation/NSString.h>
94
95 // ----------------------------------------------------------------------------
96 // globals
97 // ----------------------------------------------------------------------------
98 WX_IMPLEMENT_OBJC_INTERFACE_HASHMAP(NSComboBox)
99
100 void wxCocoaNSComboBox::AssociateNSComboBox(WX_NSComboBox cocoaNSComboBox)
101 {
102 if(cocoaNSComboBox)
103 {
104 sm_cocoaHash.insert(wxCocoaNSComboBoxHash::value_type(cocoaNSComboBox,this));
105
106 [[NSNotificationCenter defaultCenter] addObserver:(id)cocoaNSComboBox selector:@selector(comboBoxSelectionDidChange:) name:@"NSComboBoxSelectionDidChangeNotification" object:cocoaNSComboBox];
107 [[NSNotificationCenter defaultCenter] addObserver:(id)cocoaNSComboBox selector:@selector(comboBoxSelectionDidChange:) name:@"NSComboBoxSelectionIsChangingNotification" object:cocoaNSComboBox];
108 [[NSNotificationCenter defaultCenter] addObserver:(id)cocoaNSComboBox selector:@selector(comboBoxSelectionDidChange:) name:@"NSComboBoxWillDismissNotification" object:cocoaNSComboBox];
109 [[NSNotificationCenter defaultCenter] addObserver:(id)cocoaNSComboBox selector:@selector(comboBoxSelectionDidChange:) name:@"NSComboBoxWillPopUpNotification" object:cocoaNSComboBox];
110 }
111 }
112
113 void wxCocoaNSComboBox::DisassociateNSComboBox(WX_NSComboBox cocoaNSComboBox)
114 {
115 if(cocoaNSComboBox)
116 {
117 sm_cocoaHash.erase(cocoaNSComboBox);
118 [[NSNotificationCenter defaultCenter] removeObserver:(id)cocoaNSComboBox name:@"NSComboBoxSelectionDidChangeNotification" object:cocoaNSComboBox];
119 [[NSNotificationCenter defaultCenter] removeObserver:(id)cocoaNSComboBox name:@"NSComboBoxSelectionIsChangingNotification" object:cocoaNSComboBox];
120 [[NSNotificationCenter defaultCenter] removeObserver:(id)cocoaNSComboBox name:@"NSComboBoxWillDismissNotification" object:cocoaNSComboBox];
121 [[NSNotificationCenter defaultCenter] removeObserver:(id)cocoaNSComboBox name:@"NSComboBoxWillPopUpNotification" object:cocoaNSComboBox];
122 }
123 }
124
125 // ============================================================================
126 // @class wxPoserNSComboBox
127 // ============================================================================
128 @interface wxPoserNSComboBox : NSComboBox
129 {
130 }
131
132 - (void)comboBoxSelectionDidChange:(NSNotification *)notification;
133 - (void)comboBoxSelectionIsChanging:(NSNotification *)notification;
134 - (void)comboBoxWillDismiss:(NSNotification *)notification;
135 - (void)comboBoxWillPopUp:(NSNotification *)notification;
136 @end // wxPoserNSComboBox
137 WX_DECLARE_GET_OBJC_CLASS(wxPoserNSComboBox,NSComboBox)
138
139 //WX_IMPLEMENT_POSER(wxPoserNSComboBox);
140 @implementation wxPoserNSComboBox : NSComboBox
141
142 - (void)comboBoxSelectionDidChange:(NSNotification *)notification
143 {
144 wxCocoaNSComboBox *win = wxCocoaNSComboBox::GetFromCocoa(self);
145 win->doWxEvent(wxEVT_COMMAND_COMBOBOX_SELECTED);
146 }
147
148 - (void)comboBoxSelectionIsChanging:(NSNotification *)notification
149 {
150 //...
151 }
152
153 - (void)comboBoxWillDismiss:(NSNotification *)notification
154 {
155 //...
156 }
157
158 - (void)comboBoxWillPopUp:(NSNotification *)notification
159 {
160 //...
161 }
162
163 @end // implementation wxPoserNSComboBox
164 WX_IMPLEMENT_GET_OBJC_CLASS(wxPoserNSComboBox,NSComboBox)
165
166 #include "wx/cocoa/autorelease.h"
167 #include "wx/cocoa/string.h"
168
169 #import <AppKit/NSComboBox.h>
170
171 IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl)
172 BEGIN_EVENT_TABLE(wxComboBox, wxControl)
173 END_EVENT_TABLE()
174 WX_IMPLEMENT_COCOA_OWNER(wxComboBox,NSComboBox,NSTextField,NSView)
175 WX_IMPLEMENT_COCOA_OWNER(wxComboBox,NSTextField,NSControl,NSView)
176
177 bool wxComboBox::Create(wxWindow *parent, wxWindowID winid,
178 const wxString& value,
179 const wxPoint& pos,
180 const wxSize& size,
181 const wxArrayString& choices,
182 long style,
183 const wxValidator& validator,
184 const wxString& name)
185 {
186 wxCArrayString chs(choices);
187
188 return Create(parent, winid, value, pos, size, chs.GetCount(),
189 chs.GetStrings(), style, validator, name);
190 }
191
192 bool wxComboBox::Create(wxWindow *parent, wxWindowID winid,
193 const wxString& value,
194 const wxPoint& pos,
195 const wxSize& size,
196 int n, const wxString choices[],
197 long style,
198 const wxValidator& validator,
199 const wxString& name)
200 {
201 wxAutoNSAutoreleasePool pool;
202 if(!CreateControl(parent,winid,pos,size,style,validator,name))
203 return false;
204
205 m_cocoaNSView = NULL;
206 SetNSComboBox([[WX_GET_OBJC_CLASS(wxPoserNSComboBox) alloc] initWithFrame:MakeDefaultNSRect(size)]);
207 [m_cocoaNSView release];
208 [GetNSTextField() setStringValue:wxNSStringWithWxString(value.c_str())];
209 [GetNSControl() sizeToFit];
210 if(m_parent)
211 m_parent->CocoaAddChild(this);
212 SetInitialFrameRect(pos,size);
213
214 wxComboBox::Append(n, choices);
215
216 [GetNSComboBox() setCompletes:true]; //autocomplete :)
217
218 return true;
219 }
220
221 wxComboBox::~wxComboBox()
222 {
223 DisassociateNSComboBox(GetNSComboBox());
224 }
225
226 void wxComboBox::doWxEvent(int nEvent)
227 {
228 wxCommandEvent event2(wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );
229 event2.SetInt(GetSelection());
230 event2.SetEventObject(this);
231 event2.SetString(GetStringSelection());
232 GetEventHandler()->ProcessEvent(event2);
233
234 // For consistency with MSW and GTK, also send a text updated event
235 // After all, the text is updated when a selection is made
236 wxCommandEvent TextEvent( wxEVT_COMMAND_TEXT_UPDATED, GetId() );
237 TextEvent.SetString( GetStringSelection() );
238 TextEvent.SetEventObject( this );
239 GetEventHandler()->ProcessEvent( TextEvent );
240 }
241
242
243 void wxComboBox::SetSelection(int nSelection)
244 {
245 [GetNSComboBox() selectItemAtIndex:nSelection];
246 }
247
248 wxString wxComboBox::GetStringSelection()
249 {
250 return wxStringWithNSString([GetNSComboBox() objectValueOfSelectedItem]);
251 }
252
253 void wxComboBox::DoClear()
254 {
255 [GetNSComboBox() removeAllItems];
256 m_Datas.Clear();
257 }
258
259 void wxComboBox::DoDeleteOneItem(unsigned int n)
260 {
261 [GetNSComboBox() removeItemAtIndex:n];
262 m_Datas.RemoveAt(n);
263 }
264
265 unsigned int wxComboBox::GetCount() const
266 {
267 return (unsigned int)[GetNSComboBox() numberOfItems];
268 }
269
270 wxString wxComboBox::GetString(unsigned int nIndex) const
271 {
272 return wxStringWithNSString([GetNSComboBox() itemObjectValueAtIndex:nIndex]);
273 }
274
275 void wxComboBox::SetString(unsigned int nIndex, const wxString& szString)
276 {
277 wxAutoNSAutoreleasePool pool;
278 //FIXME: There appears to be no "set item data" method - maybe
279 //an assignment would work?
280 [GetNSComboBox() removeItemAtIndex:nIndex];
281 [GetNSComboBox() insertItemWithObjectValue:wxNSStringWithWxString(szString) atIndex:nIndex];
282 }
283
284 int wxComboBox::FindString(const wxString& szItem, bool bCase) const
285 {
286 // FIXME: use wxItemContainerImmutable::FindString for bCase parameter
287 return [GetNSComboBox() indexOfItemWithObjectValue:wxNSStringWithWxString(szItem)];
288 }
289
290 int wxComboBox::GetSelection() const
291 {
292 return [GetNSComboBox() indexOfSelectedItem];
293 }
294
295 int wxComboBox::DoInsertItems(const wxArrayStringsAdapter& items,
296 unsigned int pos,
297 void **clientData,
298 wxClientDataType type)
299 {
300 wxAutoNSAutoreleasePool pool;
301 const unsigned int numITems = items.GetCount();
302 for ( unsigned int i = 0; i < numITems; ++i, ++pos )
303 {
304 [GetNSComboBox() insertItemWithObjectValue:wxNSStringWithWxString(items[i]) atIndex:(pos)];
305 m_Datas.Insert(NULL, pos);
306 AssignNewItemClientData(pos, clientData, i, type);
307 }
308 return pos - 1;
309 }
310
311 void wxComboBox::DoSetItemClientData(unsigned int nIndex, void* pData)
312 {
313 m_Datas[nIndex] = pData;
314 }
315
316 void* wxComboBox::DoGetItemClientData(unsigned int nIndex) const
317 {
318 return m_Datas[nIndex];
319 }
320
321 /////////////////////////////////////////////////////////////////////////////
322 // wxTextEntry virtual implementations:
323
324 void wxComboBox::WriteText(wxString const&)
325 {
326 }
327
328 wxString wxComboBox::GetValue() const
329 {
330 wxAutoNSAutoreleasePool pool;
331 return wxStringWithNSString([GetNSTextField() stringValue]);
332 }
333
334 void wxComboBox::Remove(long, long)
335 {
336 }
337
338 void wxComboBox::Cut()
339 {
340 }
341
342 void wxComboBox::Copy()
343 {
344 }
345
346 void wxComboBox::Paste()
347 {
348 }
349
350 void wxComboBox::Undo()
351 {
352 }
353
354 void wxComboBox::Redo()
355 {
356 }
357
358 bool wxComboBox::CanUndo() const
359 {
360 return false;
361 }
362
363 bool wxComboBox::CanRedo() const
364 {
365 return false;
366 }
367
368 void wxComboBox::SetInsertionPoint(long)
369 {
370 }
371
372 long wxComboBox::GetInsertionPoint() const
373 {
374 return 0;
375 }
376
377 wxTextPos wxComboBox::GetLastPosition() const
378 {
379 // working - returns the size of the wxString
380 return (long)(GetValue().Len());
381 }
382
383 void wxComboBox::SetSelection(long, long)
384 {
385 }
386
387 void wxComboBox::GetSelection(long*, long*) const
388 {
389 }
390
391 bool wxComboBox::IsEditable() const
392 {
393 return [GetNSTextField() isEditable];
394 }
395
396 void wxComboBox::SetEditable(bool editable)
397 {
398 // first ensure that the current value is stored (in case the user had not finished editing
399 // before SetEditable(FALSE) was called)
400 DoSetValue(GetValue(),1);
401
402 [GetNSTextField() setEditable: editable];
403
404 // forces the focus on the textctrl to be lost - while focus is still maintained
405 // after SetEditable(FALSE) the user may still edit the control
406 // (might not the best way to do this..)
407 [GetNSTextField() abortEditing];
408 }
409
410 #endif // wxUSE_COMBOBOX