just added a comment

[wxWidgets.git] / src / cocoa / checkbox.mm

diff --git a/src/cocoa/checkbox.mm b/src/cocoa/checkbox.mm
index 04204304f11c7d3f63916a1ba5babd32b9341982..13ee14009c8362f256cfa43490eea272ef9631e5 100644 (file)
--- a/src/cocoa/checkbox.mm
+++ b/src/cocoa/checkbox.mm
@@ -6,10 +6,13 @@
 // Created:     2003/03/16
 // RCS-ID:      $Id: 
 // Copyright:   (c) 2003 David Elliott
-// Licence:    wxWindows license
+// Licence:    wxWidgets licence
 /////////////////////////////////////////////////////////////////////////////
 
 #include "wx/wxprec.h"
+
+#if wxUSE_CHECKBOX
+
 #ifndef WX_PRECOMP
     #include "wx/log.h"
     #include "wx/app.h"
@@ -42,6 +45,7 @@ bool wxCheckBox::Create(wxWindow *parent, wxWindowID winid,
     SetNSButton([[NSButton alloc] initWithFrame: MakeDefaultNSRect(size)]);
     [m_cocoaNSView release];
     [GetNSButton() setButtonType: NSSwitchButton];
+    [GetNSButton() setAllowsMixedState: Is3State()];
     [GetNSButton() setTitle:wxNSStringWithWxString(wxStripMenuCodes(label))];
     [GetNSControl() sizeToFit];
 
@@ -59,25 +63,82 @@ wxCheckBox::~wxCheckBox()
 
 void wxCheckBox::SetValue(bool value)
 {
-    if(value)
-        [GetNSButton() setState: NSOnState];
-    else
-        [GetNSButton() setState: NSOffState];
+    [GetNSButton() setState: value?NSOnState:NSOffState];
+}
+
+void wxCheckBox::DoSet3StateValue(wxCheckBoxState state)
+{
+    int cocoaState;
+    switch(state)
+    {
+    case wxCHK_UNCHECKED:
+        cocoaState = NSOffState;
+        break;
+    case wxCHK_CHECKED:
+        cocoaState = NSOnState;
+        break;
+    case wxCHK_UNDETERMINED:
+        // Base class would have already set state to wxCHK_UNCHECKED
+//        wxASSERT_MSG(Is3State(),"Use the wxCHK_3STATE style flag");
+        cocoaState = NSMixedState;
+        break;
+    default:
+        wxFAIL_MSG(wxT("Invalid state in wxCheckBox::DoSet3StateValue"));
+        return;
+    }
+    [GetNSButton() setState:cocoaState];
 }
 
 bool wxCheckBox::GetValue() const
 {
     int state = [GetNSButton() state];
-    wxASSERT(state!=NSMixedState);
-    return state==NSOnState;
+    wxASSERT_MSG(state!=NSMixedState || Is3State(),
+        wxT("NSMixedState returned from a 2-state checkbox"));
+    return state!=NSOffState;
+}
+
+wxCheckBoxState wxCheckBox::DoGet3StateValue() const
+{
+    switch([GetNSButton() state])
+    {
+    case NSOffState:
+        return wxCHK_UNCHECKED;
+    case NSOnState:
+        return wxCHK_CHECKED;
+    default:
+        wxFAIL_MSG(wxT("[NSButton -state] returned an invalid state!"));
+    case NSMixedState:
+        // Base class handles this assertion for us
+//        wxASSERT_MSG(Is3State(),wxT("NSMixedState returned from a 2-state checkbox"));
+        return wxCHK_UNDETERMINED;
+    }
 }
 
 void wxCheckBox::Cocoa_wxNSButtonAction(void)
 {
-    wxLogDebug("Checkbox");
+    wxLogTrace(wxTRACE_COCOA,wxT("Checkbox"));
+    // What we really want to do is override [NSCell -nextState] to return
+    // NSOnState in lieu of NSMixedState but this works (aside from the
+    // very slightly noticeable drawing of - and then a check) -DE
+
+    // Cocoa always allows a 3-state button to transition into
+    // the mixed/undetermined state by clicking, we don't
+    if ( !Is3rdStateAllowedForUser()
+         && [GetNSButton() state] == NSMixedState )
+    {
+        // Cocoa's sequence is on/off/mixed
+        // skip mixed, go right back to on
+        [GetNSButton() setState: NSOnState];
+    }
     wxCommandEvent event(wxEVT_COMMAND_CHECKBOX_CLICKED, GetId());
     InitCommandEvent(event); //    event.SetEventObject(this);
-    event.SetInt(GetValue());
+    event.SetInt(Get3StateValue());
     Command(event);
 }
 
+void wxCheckBox::SetLabel(const wxString& s)
+{
+    wxAutoNSAutoreleasePool pool;
+    [GetNSButton() setTitle:wxNSStringWithWxString(s)];
+}
+#endif