src/cocoa/control.mm

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/cocoa/control.mm
   3 // Purpose:     wxControl class
   4 // Author:      David Elliiott
   5 // Modified by:
   6 // Created:     2003/02/15
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2003 David Elliott
   9 // Licence:     wxWidgets licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #include "wx/control.h"
  15
  16 #ifndef WX_PRECOMP
  17     #include "wx/log.h"
  18 #endif
  19
  20 #include "wx/cocoa/autorelease.h"
  21 #include "wx/cocoa/string.h"
  22 #include "wx/cocoa/trackingrectmanager.h"
  23 #include "wx/cocoa/objc/objc_uniquifying.h"
  24 #include "wx/cocoa/objc/NSView.h"
  25
  26 #import <AppKit/NSControl.h>
  27 #import <AppKit/NSCell.h>
  28 #import <Foundation/NSException.h>
  29
  30 #include <math.h>
  31
  32 IMPLEMENT_ABSTRACT_CLASS(wxControl, wxWindow)
  33 BEGIN_EVENT_TABLE(wxControl, wxControlBase)
  34 END_EVENT_TABLE()
  35 WX_IMPLEMENT_COCOA_OWNER(wxControl,NSControl,NSView,NSView)
  36
  37 bool wxControl::Create(wxWindow *parent, wxWindowID winid,
  38             const wxPoint& pos, const wxSize& size, long style,
  39             const wxValidator& validator, const wxString& name)
  40 {
  41     wxLogTrace(wxTRACE_COCOA,wxT("Creating control with id=%d"),winid);
  42     if(!CreateControl(parent,winid,pos,size,style,validator,name))
  43         return false;
  44     wxLogTrace(wxTRACE_COCOA,wxT("Created control with id=%d"),GetId());
  45     m_cocoaNSView = NULL;
  46     SetNSControl([[WX_GET_OBJC_CLASS(WXNSView) alloc] initWithFrame: MakeDefaultNSRect(size)]);
  47     // NOTE: YES we want to release this (to match the alloc).
  48     // DoAddChild(this) will retain us again since addSubView doesn't.
  49     [m_cocoaNSView release];
  50
  51     if(m_parent)
  52         m_parent->CocoaAddChild(this);
  53     SetInitialFrameRect(pos,size);
  54
  55     // Controls should have a viewable-area tracking rect by default
  56     m_visibleTrackingRectManager = new wxCocoaTrackingRectManager(this);
  57
  58     return true;
  59 }
  60
  61 wxControl::~wxControl()
  62 {
  63     DisassociateNSControl(GetNSControl());
  64 }
  65
  66 wxSize wxControl::DoGetBestSize() const
  67 {
  68     wxAutoNSAutoreleasePool pool;
  69     wxASSERT(GetNSControl());
  70     /* We can ask single-celled controls for their cell and get its size */
  71     NSCell *cell = nil;
  72     if([GetNSControl() respondsToSelector:@selector(cell)])
  73         cell = [GetNSControl() cell];
  74     if(cell)
  75     {
  76         NSSize cellSize = [cell cellSize];
  77         wxSize size((int)ceil(cellSize.width),(int)ceil(cellSize.height));
  78         wxLogTrace(wxTRACE_COCOA_Window_Size,wxT("wxControl=%p::DoGetBestSize()==(%d,%d) from NSCell"),this,size.x,size.y);
  79         return size;
  80     }
  81
  82     /* multi-celled control? size to fit, get the size, then set it back */
  83     if([GetNSControl() respondsToSelector:@selector(sizeToFit)])
  84     {
  85         NSRect storedRect = [m_cocoaNSView frame];
  86         [GetNSControl() sizeToFit];
  87         NSRect cocoaRect = [m_cocoaNSView frame];
  88         wxSize size((int)ceil(cocoaRect.size.width),(int)ceil(cocoaRect.size.height));
  89         [m_cocoaNSView setFrame: storedRect];
  90         wxLogTrace(wxTRACE_COCOA_Window_Size,wxT("wxControl=%p::DoGetBestSize()==(%d,%d) from sizeToFit"),this,size.x,size.y);
  91         return size;
  92     }
  93     // Cocoa can't tell us the size, probably not an NSControl.
  94     wxLogDebug(wxT("Class %s (or superclass still below wxControl) should implement DoGetBestSize()"),GetClassInfo()->GetClassName());
  95     return wxControlBase::DoGetBestSize();
  96 }
  97
  98 bool wxControl::ProcessCommand(wxCommandEvent& event)
  99 {
 100     return GetEventHandler()->ProcessEvent(event);
 101 }
 102
 103 void wxControl::CocoaSetEnabled(bool enable)
 104 {
 105     if([GetNSControl() respondsToSelector:@selector(setEnabled:)])
 106         [GetNSControl() setEnabled: enable];
 107 }
 108
 109 /*static*/ void wxControl::CocoaSetLabelForObject(const wxString& label, struct objc_object *aView)
 110 {
 111     [aView setTitle:wxNSStringWithWxString(GetLabelText(label))];
 112 }
 113