ComboBox for cocoa

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@32109 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/cocoa/combobox.h

@@ -1,9 +1,9 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        wx/cocoa/combobox.h
 // Purpose:     wxComboBox class
-// Author:      David Elliott
+// Author:      Ryan Norton
 // Modified by:
-// Created:     2003/07/14
+// Created:     2005/02/16
 // RCS-ID:      $Id$
 // Copyright:   (c) 2003 David Elliott
 // Licence:     wxWindows licence
@@ -12,16 +12,36 @@
 #ifndef __WX_COCOA_COMBOBOX_H__
 #define __WX_COCOA_COMBOBOX_H__
 
-//#include "wx/cocoa/NSTableView.h"
+//Begin NSComboBox.h
+
+#include "wx/hashmap.h"
+#include "wx/cocoa/ObjcAssociate.h"
+
+DECLARE_WXCOCOA_OBJC_CLASS(NSComboBox);
+
+WX_DECLARE_OBJC_HASHMAP(NSComboBox);
+class wxCocoaNSComboBox
+{
+    WX_DECLARE_OBJC_INTERFACE_HASHMAP(NSComboBox)
+public:
+    void AssociateNSComboBox(WX_NSComboBox cocoaNSComboBox);
+    void DisassociateNSComboBox(WX_NSComboBox cocoaNSComboBox);
+    
+    virtual void doWxEvent(int nEvent) = 0;
+};
+
+//begin combobox.h
+
+#include "wx/dynarray.h"
 
 // ========================================================================
 // wxComboBox
 // ========================================================================
-class WXDLLEXPORT wxComboBox: public wxTextCtrl, public wxComboBoxBase //, protected wxCocoaNSTableView
+class WXDLLEXPORT wxComboBox : public wxTextCtrl, public wxComboBoxBase, protected wxCocoaNSComboBox
 {
     DECLARE_DYNAMIC_CLASS(wxComboBox)
     DECLARE_EVENT_TABLE()
-//    WX_DECLARE_COCOA_OWNER(NSComboBox,NSTextField,NSView)
+    WX_DECLARE_COCOA_OWNER(NSComboBox,NSTextField,NSView)
 // ------------------------------------------------------------------------
 // initialization
 // ------------------------------------------------------------------------
@@ -73,6 +93,9 @@ public:
 // Cocoa callbacks
 // ------------------------------------------------------------------------
 protected:
+    wxArrayPtrVoid m_Datas;
+    virtual void doWxEvent(int nEvent);
+
 // ------------------------------------------------------------------------
 // Implementation
 // ------------------------------------------------------------------------

src/cocoa/combobox.mm

@@ -1,9 +1,9 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        cocoa/combobox.mm
 // Purpose:     wxComboBox
-// Author:      David Elliott
+// Author:     	Ryan Norton
 // Modified by:
-// Created:     2003/07/14
+// Created:     2005/02/16
 // RCS-ID:      $Id$
 // Copyright:   (c) 2003 David Elliott
 // Licence:   	wxWidgets licence
@@ -11,8 +11,164 @@
 
 #include "wx/wxprec.h"
 
+//
+// Impl notes:
+// There is no custom data source because doing so unneccesaraly sacrifices
+// some native autocompletion behavior (we would have to make our own - 
+// the SimpleComboBox sample does so in the developer folder that
+// comes with OSX).  One reason you might want this would be to have
+// only one array or be able to display numbers by returned an NSNumber
+// from the methods.
+//
+// One problem though is that wxCB_SORT isn't implemented...
+//
+// Also, not sure if it is correctly getting text field events since
+// I'm using SetNSComboBox instead of SetNSTextField
+//
+// doWxEvent is really hackish... but since there's only one event...
+//
+// Ideas for future improvement - other notes:
+// Combox w/o wxCB_DROPDOWN doesn't seem to be implementable 	
+//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.
+//wxCB_SORT 	is possible with data source
+//
+// setIntercellSpacing:/setItemHeight: to autoadjust to number of inserted items?
+//
+/*
+    //example of autocompletion from SimpleComboBox Example
+    // ==========================================================
+// Combo box data source methods
+// ==========================================================
+
+- (int)numberOfItemsInComboBox:(NSComboBox *)aComboBox {
+    return [genres count];
+}
+- (id)comboBox:(NSComboBox *)aComboBox objectValueForItemAtIndex:(int)index {
+    return [genres objectAtIndex:index];
+}
+- (unsigned int)comboBox:(NSComboBox *)aComboBox indexOfItemWithStringValue:(NSString *)string {
+    return [genres indexOfObject: string];
+}
+
+- (NSString *) firstGenreMatchingPrefix:(NSString *)prefix {
+    NSString *string = nil;
+    NSString *lowercasePrefix = [prefix lowercaseString];
+    NSEnumerator *stringEnum = [genres objectEnumerator];
+    while ((string = [stringEnum nextObject])) {
+	if ([[string lowercaseString] hasPrefix: lowercasePrefix]) return string;
+    }
+    return nil;
+}
+
+- (NSString *)comboBox:(NSComboBox *)aComboBox completedString:(NSString *)inputString {
+    // This method is received after each character typed by the user, because we have checked the "completes" flag for genreComboBox in IB.
+    // 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.
+    NSString *candidate = [self firstGenreMatchingPrefix: inputString];
+    return (candidate ? candidate : inputString);
+}
+*/
 #if wxUSE_COMBOBOX
 
+/////////////////////////////////////////////////////////////////////////////
+// Name:        cocoa/NSComboBox.mm
+// Purpose:     wxCocoaNSComboBox
+// Author:      Ryan Norton
+// Modified by:
+// Created:     2005/02/16
+// RCS-ID:      $Id: 
+// Copyright:   (c) 2003 David Elliott
+// Licence:     wxWidgets licence
+/////////////////////////////////////////////////////////////////////////////
+
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+#include "wx/wxprec.h"
+#ifndef WX_PRECOMP
+    #include "wx/window.h"
+#endif // WX_PRECOMP
+
+#include "wx/cocoa/ObjcPose.h"
+#include "wx/combobox.h"
+
+#import <AppKit/NSComboBox.h>
+#import <Foundation/NSNotification.h>
+#import <Foundation/NSString.h>
+
+// ----------------------------------------------------------------------------
+// globals
+// ----------------------------------------------------------------------------
+WX_IMPLEMENT_OBJC_INTERFACE_HASHMAP(NSComboBox)
+
+void wxCocoaNSComboBox::AssociateNSComboBox(WX_NSComboBox cocoaNSComboBox)
+{
+    if(cocoaNSComboBox)
+    {
+        sm_cocoaHash.insert(wxCocoaNSComboBoxHash::value_type(cocoaNSComboBox,this));
+        
+        [[NSNotificationCenter defaultCenter] addObserver:(id)cocoaNSComboBox selector:@selector(comboBoxSelectionDidChange:) name:@"NSComboBoxSelectionDidChangeNotification" object:cocoaNSComboBox];
+        [[NSNotificationCenter defaultCenter] addObserver:(id)cocoaNSComboBox selector:@selector(comboBoxSelectionDidChange:) name:@"NSComboBoxSelectionIsChangingNotification" object:cocoaNSComboBox];
+        [[NSNotificationCenter defaultCenter] addObserver:(id)cocoaNSComboBox selector:@selector(comboBoxSelectionDidChange:) name:@"NSComboBoxWillDismissNotification" object:cocoaNSComboBox];
+        [[NSNotificationCenter defaultCenter] addObserver:(id)cocoaNSComboBox selector:@selector(comboBoxSelectionDidChange:) name:@"NSComboBoxWillPopUpNotification" object:cocoaNSComboBox];
+    }
+}
+
+void wxCocoaNSComboBox::DisassociateNSComboBox(WX_NSComboBox cocoaNSComboBox)
+{
+    if(cocoaNSComboBox)
+    {
+        sm_cocoaHash.erase(cocoaNSComboBox);
+        [[NSNotificationCenter defaultCenter] removeObserver:(id)cocoaNSComboBox name:@"NSComboBoxSelectionDidChangeNotification" object:cocoaNSComboBox];
+        [[NSNotificationCenter defaultCenter] removeObserver:(id)cocoaNSComboBox name:@"NSComboBoxSelectionIsChangingNotification" object:cocoaNSComboBox];
+        [[NSNotificationCenter defaultCenter] removeObserver:(id)cocoaNSComboBox name:@"NSComboBoxWillDismissNotification" object:cocoaNSComboBox];
+        [[NSNotificationCenter defaultCenter] removeObserver:(id)cocoaNSComboBox name:@"NSComboBoxWillPopUpNotification" object:cocoaNSComboBox];
+    }
+}
+
+// ============================================================================
+// @class wxPoserNSComboBox
+// ============================================================================
+@interface wxPoserNSComboBox : NSComboBox
+{
+}
+
+- (void)comboBoxSelectionDidChange:(NSNotification *)notification;
+- (void)comboBoxSelectionIsChanging:(NSNotification *)notification;
+- (void)comboBoxWillDismiss:(NSNotification *)notification;
+- (void)comboBoxWillPopUp:(NSNotification *)notification;
+@end // wxPoserNSComboBox
+
+//WX_IMPLEMENT_POSER(wxPoserNSComboBox);
+@implementation wxPoserNSComboBox : NSComboBox
+
+- (void)comboBoxSelectionDidChange:(NSNotification *)notification
+{
+    wxCocoaNSComboBox *win = wxCocoaNSComboBox::GetFromCocoa(self);
+    win->doWxEvent(wxEVT_COMMAND_COMBOBOX_SELECTED);
+}
+
+- (void)comboBoxSelectionIsChanging:(NSNotification *)notification
+{
+    //...
+}
+
+- (void)comboBoxWillDismiss:(NSNotification *)notification
+{
+    //...
+}
+
+- (void)comboBoxWillPopUp:(NSNotification *)notification
+{
+    //...
+}
+
+@end // implementation wxPoserNSComboBox
+
 #include "wx/app.h"
 #include "wx/combobox.h"
 #include "wx/log.h"
@@ -25,7 +181,7 @@
 IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxTextCtrl)
 BEGIN_EVENT_TABLE(wxComboBox, wxTextCtrl)
 END_EVENT_TABLE()
-// WX_IMPLEMENT_COCOA_OWNER(wxComboBox,NSComboBox,NSTextField,NSView)
+WX_IMPLEMENT_COCOA_OWNER(wxComboBox,NSComboBox,NSTextField,NSView)
 
 bool wxComboBox::Create(wxWindow *parent, wxWindowID winid,
             const wxString& value,
@@ -56,7 +212,7 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID winid,
         return false;
         
     m_cocoaNSView = NULL;
-    SetNSTextField([[NSComboBox alloc] initWithFrame:MakeDefaultNSRect(size)]);
+    SetNSComboBox([[wxPoserNSComboBox alloc] initWithFrame:MakeDefaultNSRect(size)]);
     [m_cocoaNSView release];
     [GetNSTextField() setStringValue:wxNSStringWithWxString(value.c_str())];
     [GetNSControl() sizeToFit];
@@ -64,80 +220,115 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID winid,
         m_parent->CocoaAddChild(this);
     SetInitialFrameRect(pos,size);
 
+    for(int i = 0; i < n; ++i)
+        wxComboBox::DoAppend(choices[i]);
+        
+    [GetNSComboBox() setCompletes:true]; //autocomplete :)
+    
     return true;
 }
 
 wxComboBox::~wxComboBox()
 {
+    DisassociateNSComboBox(GetNSComboBox());
 }
 
-void wxComboBox::SetSelection(int)
+void wxComboBox::doWxEvent(int nEvent)
 {
+    wxCommandEvent event2(wxEVT_COMMAND_COMBOBOX_SELECTED, GetId() );
+    event2.SetInt(GetSelection());
+    event2.SetEventObject(this);
+    event2.SetString(GetStringSelection());
+    GetEventHandler()->ProcessEvent(event2);
+
+    // For consistency with MSW and GTK, also send a text updated event
+    // After all, the text is updated when a selection is made
+    wxCommandEvent TextEvent( wxEVT_COMMAND_TEXT_UPDATED, GetId() );
+    TextEvent.SetString( GetStringSelection() );
+    TextEvent.SetEventObject( this );
+    GetEventHandler()->ProcessEvent( TextEvent );
+}
+
+
+void wxComboBox::SetSelection(int nSelection)
+{
+    [GetNSComboBox() selectItemAtIndex:nSelection];
 }
 
 wxString wxComboBox::GetStringSelection()
 {
-    return wxEmptyString;
+    return wxStringWithNSString([GetNSComboBox() objectValueOfSelectedItem]);
 }
 
 void wxComboBox::Clear()
 {
+    [GetNSComboBox() removeAllItems];
+    m_Datas.Clear();
 }
 
-void wxComboBox::Delete(int)
+void wxComboBox::Delete(int nIndex)
 {
+    [GetNSComboBox() removeItemAtIndex:nIndex];
+    m_Datas.RemoveAt(nIndex);
 }
 
 int wxComboBox::GetCount() const
 {
-    return 0;
+    return [GetNSComboBox() numberOfItems];
 }
 
-wxString wxComboBox::GetString(int) const
+wxString wxComboBox::GetString(int nIndex) const
+{	return wxStringWithNSString([GetNSComboBox() itemObjectValueAtIndex:nIndex]);	}
+
+void wxComboBox::SetString(int nIndex, const wxString& szString)
 {	
-    return wxEmptyString;
+    wxAutoNSAutoreleasePool pool;
+    //FIXME:  There appears to be no "set item data" method - maybe
+    //an assignment would work?
+    [GetNSComboBox() removeItemAtIndex:nIndex];
+    [GetNSComboBox() insertItemWithObjectValue:wxNSStringWithWxString(szString) atIndex:nIndex];    
 }
 
-void wxComboBox::SetString(int, const wxString&)
+int wxComboBox::FindString(const wxString& szItem) const
-{
+{	return [GetNSComboBox() indexOfItemWithObjectValue:wxNSStringWithWxString(szItem)];	}
-}
-
-int wxComboBox::FindString(const wxString&) const
-{
-    return wxNOT_FOUND;
-}
 
 int wxComboBox::GetSelection() const
+{	return [GetNSComboBox() indexOfSelectedItem];	}
+
+int wxComboBox::DoAppend(const wxString& szItem)
 {
-    return 0;
+    m_Datas.Add(NULL);
+    wxAutoNSAutoreleasePool pool;
+    [GetNSComboBox() addItemWithObjectValue:wxNSStringWithWxString(szItem)];
+    return [GetNSComboBox() numberOfItems];
 }
 
-int wxComboBox::DoAppend(const wxString&)
+int wxComboBox::DoInsert(const wxString& szItem, int nIndex)
 {
-    return 0;
+    m_Datas.Insert(NULL, nIndex);
+    wxAutoNSAutoreleasePool pool;
+    [GetNSComboBox() insertItemWithObjectValue:wxNSStringWithWxString(szItem) atIndex:nIndex];
+    return nIndex;
 }
 
-int wxComboBox::DoInsert(const wxString&, int)
+void wxComboBox::DoSetItemClientData(int nIndex, void* pData)
 {
-    return 0;
+    m_Datas[nIndex] = pData;
 }
 
-void wxComboBox::DoSetItemClientData(int, void*)
+void* wxComboBox::DoGetItemClientData(int nIndex) const
 {
+    return m_Datas[nIndex];
 }
 
-void* wxComboBox::DoGetItemClientData(int) const
+void wxComboBox::DoSetItemClientObject(int nIndex, wxClientData* pClientData)
 {
-    return NULL;
+    m_Datas[nIndex] = (void*) pClientData;
 }
 
-void wxComboBox::DoSetItemClientObject(int, wxClientData*)
+wxClientData* wxComboBox::DoGetItemClientObject(int nIndex) const
 {
-}
+    return (wxClientData*) m_Datas[nIndex];
-
-wxClientData* wxComboBox::DoGetItemClientObject(int) const
-{
-    return NULL;
 }
 
 #endif //wxUSE_COMBOBOX