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 #ifndef WX_PRECOMP
  15     #include "wx/control.h"
  16     #include "wx/log.h"
  17 #endif
  18
  19 #include "wx/cocoa/autorelease.h"
  20
  21 #import <AppKit/NSControl.h>
  22 #import <AppKit/NSCell.h>
  23 #import <Foundation/NSException.h>
  24
  25 #include <math.h>
  26
  27 @interface wxNonControlNSControl : NSControl
  28 {
  29 }
  30
  31 - (void)drawRect: (NSRect)rect;
  32 @end // wxNonControlNSControl
  33
  34 @implementation wxNonControlNSControl : NSControl
  35 - (void)drawRect: (NSRect)rect
  36 {
  37     wxCocoaNSView *win = wxCocoaNSView::GetFromCocoa(self);
  38     if( !win || !win->Cocoa_drawRect(rect) )
  39         [super drawRect:rect];
  40 }
  41 @end // wxNonControlNSControl
  42
  43 IMPLEMENT_ABSTRACT_CLASS(wxControl, wxWindow)
  44 BEGIN_EVENT_TABLE(wxControl, wxControlBase)
  45 END_EVENT_TABLE()
  46 WX_IMPLEMENT_COCOA_OWNER(wxControl,NSControl,NSView,NSView)
  47
  48 bool wxControl::Create(wxWindow *parent, wxWindowID winid,
  49             const wxPoint& pos, const wxSize& size, long style,
  50             const wxValidator& validator, const wxString& name)
  51 {
  52     wxLogTrace(wxTRACE_COCOA,wxT("Creating control with id=%d"),winid);
  53     if(!CreateControl(parent,winid,pos,size,style,validator,name))
  54         return false;
  55     wxLogTrace(wxTRACE_COCOA,wxT("Created control with id=%d"),GetId());
  56     m_cocoaNSView = NULL;
  57     SetNSControl([[wxNonControlNSControl alloc] initWithFrame: MakeDefaultNSRect(size)]);
  58     // NOTE: YES we want to release this (to match the alloc).
  59     // DoAddChild(this) will retain us again since addSubView doesn't.
  60     [m_cocoaNSView release];
  61
  62     [GetNSControl() sizeToFit];
  63
  64     if(m_parent)
  65         m_parent->CocoaAddChild(this);
  66     SetInitialFrameRect(pos,size);
  67
  68     return true;
  69 }
  70
  71 wxControl::~wxControl()
  72 {
  73     DisassociateNSControl(GetNSControl());
  74 }
  75
  76 wxSize wxControl::DoGetBestSize() const
  77 {
  78     wxAutoNSAutoreleasePool pool;
  79     wxASSERT(GetNSControl());
  80     /* We can ask single-celled controls for their cell and get its size */
  81     NSCell *cell = nil;
  82 NS_DURING
  83     cell = [GetNSControl() cell];
  84 NS_HANDLER
  85     // TODO: if anything other than method not implemented, re-raise
  86 NS_ENDHANDLER
  87     if(cell)
  88     {
  89         NSSize cellSize = [cell cellSize];
  90         wxSize size((int)ceil(cellSize.width),(int)ceil(cellSize.height));
  91         wxLogTrace(wxTRACE_COCOA_Window_Size,wxT("wxControl=%p::DoGetBestSize()==(%d,%d) from NSCell"),this,size.x,size.y);
  92         return size;
  93     }
  94
  95     /* multi-celled control? size to fit, get the size, then set it back */
  96     NSRect storedRect = [m_cocoaNSView frame];
  97     bool didFit = false;
  98 NS_DURING
  99     [GetNSControl() sizeToFit];
 100     didFit = true;
 101 NS_HANDLER
 102     // TODO: if anything other than method not implemented, re-raise
 103 NS_ENDHANDLER
 104     if(didFit)
 105     {
 106         NSRect cocoaRect = [m_cocoaNSView frame];
 107         wxSize size((int)ceil(cocoaRect.size.width),(int)ceil(cocoaRect.size.height));
 108         [m_cocoaNSView setFrame: storedRect];
 109         wxLogTrace(wxTRACE_COCOA_Window_Size,wxT("wxControl=%p::DoGetBestSize()==(%d,%d) from sizeToFit"),this,size.x,size.y);
 110         return size;
 111     }
 112     // Cocoa can't tell us the size, probably not an NSControl.
 113     wxLogDebug(wxT("Class %s (or superclass still below wxControl) should implement DoGetBestSize()"),GetClassInfo()->GetClassName());
 114     return wxControlBase::DoGetBestSize();
 115 }
 116
 117 bool wxControl::ProcessCommand(wxCommandEvent& event)
 118 {
 119     return GetEventHandler()->ProcessEvent(event);
 120 }
 121
 122 void wxControl::CocoaSetEnabled(bool enable)
 123 {
 124     [GetNSControl() setEnabled: enable];
 125 }