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
  22 #import <AppKit/NSControl.h>
  23 #import <AppKit/NSCell.h>
  24 #import <Foundation/NSException.h>
  25
  26 #include <math.h>
  27
  28 @interface wxNonControlNSControl : NSControl
  29 {
  30 }
  31
  32 - (void)drawRect: (NSRect)rect;
  33 @end // wxNonControlNSControl
  34
  35 @implementation wxNonControlNSControl : NSControl
  36 - (void)drawRect: (NSRect)rect
  37 {
  38     wxCocoaNSView *win = wxCocoaNSView::GetFromCocoa(self);
  39     if( !win || !win->Cocoa_drawRect(rect) )
  40         [super drawRect:rect];
  41 }
  42 @end // wxNonControlNSControl
  43
  44 IMPLEMENT_ABSTRACT_CLASS(wxControl, wxWindow)
  45 BEGIN_EVENT_TABLE(wxControl, wxControlBase)
  46 END_EVENT_TABLE()
  47 WX_IMPLEMENT_COCOA_OWNER(wxControl,NSControl,NSView,NSView)
  48
  49 bool wxControl::Create(wxWindow *parent, wxWindowID winid,
  50             const wxPoint& pos, const wxSize& size, long style,
  51             const wxValidator& validator, const wxString& name)
  52 {
  53     wxLogTrace(wxTRACE_COCOA,wxT("Creating control with id=%d"),winid);
  54     if(!CreateControl(parent,winid,pos,size,style,validator,name))
  55         return false;
  56     wxLogTrace(wxTRACE_COCOA,wxT("Created control with id=%d"),GetId());
  57     m_cocoaNSView = NULL;
  58     SetNSControl([[wxNonControlNSControl alloc] initWithFrame: MakeDefaultNSRect(size)]);
  59     // NOTE: YES we want to release this (to match the alloc).
  60     // DoAddChild(this) will retain us again since addSubView doesn't.
  61     [m_cocoaNSView release];
  62
  63     [GetNSControl() sizeToFit];
  64
  65     if(m_parent)
  66         m_parent->CocoaAddChild(this);
  67     SetInitialFrameRect(pos,size);
  68
  69     return true;
  70 }
  71
  72 wxControl::~wxControl()
  73 {
  74     DisassociateNSControl(GetNSControl());
  75 }
  76
  77 wxSize wxControl::DoGetBestSize() const
  78 {
  79     wxAutoNSAutoreleasePool pool;
  80     wxASSERT(GetNSControl());
  81     /* We can ask single-celled controls for their cell and get its size */
  82     NSCell *cell = nil;
  83 NS_DURING
  84     cell = [GetNSControl() cell];
  85 NS_HANDLER
  86     // TODO: if anything other than method not implemented, re-raise
  87 NS_ENDHANDLER
  88     if(cell)
  89     {
  90         NSSize cellSize = [cell cellSize];
  91         wxSize size((int)ceil(cellSize.width),(int)ceil(cellSize.height));
  92         wxLogTrace(wxTRACE_COCOA_Window_Size,wxT("wxControl=%p::DoGetBestSize()==(%d,%d) from NSCell"),this,size.x,size.y);
  93         return size;
  94     }
  95
  96     /* multi-celled control? size to fit, get the size, then set it back */
  97     NSRect storedRect = [m_cocoaNSView frame];
  98     bool didFit = false;
  99 NS_DURING
 100     [GetNSControl() sizeToFit];
 101     didFit = true;
 102 NS_HANDLER
 103     // TODO: if anything other than method not implemented, re-raise
 104 NS_ENDHANDLER
 105     if(didFit)
 106     {
 107         NSRect cocoaRect = [m_cocoaNSView frame];
 108         wxSize size((int)ceil(cocoaRect.size.width),(int)ceil(cocoaRect.size.height));
 109         [m_cocoaNSView setFrame: storedRect];
 110         wxLogTrace(wxTRACE_COCOA_Window_Size,wxT("wxControl=%p::DoGetBestSize()==(%d,%d) from sizeToFit"),this,size.x,size.y);
 111         return size;
 112     }
 113     // Cocoa can't tell us the size, probably not an NSControl.
 114     wxLogDebug(wxT("Class %s (or superclass still below wxControl) should implement DoGetBestSize()"),GetClassInfo()->GetClassName());
 115     return wxControlBase::DoGetBestSize();
 116 }
 117
 118 bool wxControl::ProcessCommand(wxCommandEvent& event)
 119 {
 120     return GetEventHandler()->ProcessEvent(event);
 121 }
 122
 123 void wxControl::CocoaSetEnabled(bool enable)
 124 {
 125     [GetNSControl() setEnabled: enable];
 126 }