/////////////////////////////////////////////////////////////////////////////
// Name:        src/osx/cocoa/button.mm
// Purpose:     wxButton
// Author:      Stefan Csomor
// Modified by:
// Created:     1998-01-01
// RCS-ID:      $Id: button.cpp 54845 2008-07-30 14:52:41Z SC $
// Copyright:   (c) Stefan Csomor
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#include "wx/wxprec.h"

#include "wx/button.h"

#ifndef WX_PRECOMP
    #include "wx/panel.h"
    #include "wx/toplevel.h"
    #include "wx/dcclient.h"
#endif

#include "wx/stockitem.h"

#include "wx/osx/private.h"

wxSize wxButton::DoGetBestSize() const
{
    if ( GetId() == wxID_HELP )
        return wxSize( 20 , 20 ) ;

    wxSize sz = GetDefaultSize() ;

    switch (GetWindowVariant())
    {
        case wxWINDOW_VARIANT_NORMAL:
        case wxWINDOW_VARIANT_LARGE:
            sz.y = 23 ;
            break;

        case wxWINDOW_VARIANT_SMALL:
            sz.y = 17 ;
            break;

        case wxWINDOW_VARIANT_MINI:
            sz.y = 15 ;
            break;

        default:
            break;
    }

    wxRect r ;
        
    m_peer->GetBestRect(&r);

    if ( r.GetWidth() == 0 && r.GetHeight() == 0 )
    {
    }
    sz.x = r.GetWidth();
    sz.y = r.GetHeight();

    int wBtn = 96;
    
    if ((wBtn > sz.x) || ( GetWindowStyle() & wxBU_EXACTFIT))
        sz.x = wBtn;

#if wxOSX_USE_CARBON
    Rect    bestsize = { 0 , 0 , 0 , 0 } ;
    m_peer->GetBestRect( &bestsize ) ;

    int wBtn;
    if ( EmptyRect( &bestsize ) || ( GetWindowStyle() & wxBU_EXACTFIT) )
    {
        Point bounds;

        ControlFontStyleRec controlFont;
        OSStatus err = m_peer->GetData<ControlFontStyleRec>( kControlEntireControl, kControlFontStyleTag, &controlFont );
        verify_noerr( err );

        wxCFStringRef str( m_label,  GetFont().GetEncoding() );

#if wxOSX_USE_ATSU_TEXT
        SInt16 baseline;
        if ( m_font.MacGetThemeFontID() != kThemeCurrentPortFont )
        {
            err = GetThemeTextDimensions(
                (!m_label.empty() ? (CFStringRef)str : CFSTR(" ")),
                m_font.MacGetThemeFontID(), kThemeStateActive, false, &bounds, &baseline );
            verify_noerr( err );
        }
        else
#endif
        {
            wxClientDC dc(const_cast<wxButton*>(this));
            wxCoord width, height ;
            dc.GetTextExtent( m_label , &width, &height);
            bounds.h = width;
            bounds.v = height;
        }

        wBtn = bounds.h + sz.y;
    }
    else
    {
        wBtn = bestsize.right - bestsize.left ;
        // non 'normal' window variants don't return the correct height
        // sz.y = bestsize.bottom - bestsize.top ;
    }
    if ((wBtn > sz.x) || ( GetWindowStyle() & wxBU_EXACTFIT))
        sz.x = wBtn;
#endif

    return sz ;
}

wxSize wxButton::GetDefaultSize()
{
    int wBtn = 70 ;
    int hBtn = 20 ;

    return wxSize(wBtn, hBtn);
}

@implementation wxNSButton

- (id)initWithFrame:(NSRect)frame
{
    [super initWithFrame:frame];
    impl = NULL;
    [self setTarget: self];
    [self setAction: @selector(clickedAction:)];
    return self;
}

WXCOCOAIMPL_COMMON_IMPLEMENTATION

- (void) clickedAction: (id) sender
{
    if ( impl )
    {
        wxWindow* wxpeer = (wxWindow*) impl->GetWXPeer();
        if ( wxpeer )
            wxpeer->OSXHandleClicked(0);
    }
}

- (int) intValue
{
    switch ( [self state] )
    {
        case NSOnState:
            return 1;
        case NSMixedState:
            return 2;
        default:
            return 0;
    }
}

- (void) setIntValue: (int) v
{
    switch( v )
    {
        case 2:
            [self setState:NSMixedState];
            break;
        case 1:
            [self setState:NSOnState];
            break;
        default :
            [self setState:NSOffState];
            break;
    }
}

@end


wxWidgetImplType* wxWidgetImpl::CreateButton( wxWindowMac* wxpeer, 
                                    wxWindowMac* parent, 
                                    wxWindowID id, 
                                    const wxString& label,
                                    const wxPoint& pos, 
                                    const wxSize& size,
                                    long style, 
                                    long extraStyle) 
{
    NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
    wxNSButton* v = [[wxNSButton alloc] initWithFrame:r];
    
    if ( id == wxID_HELP )
    {
        [v setBezelStyle:NSHelpButtonBezelStyle];
    }
    else
    {
        [v setBezelStyle:NSRoundedBezelStyle];
    }
    
    [v setButtonType:NSMomentaryPushInButton];
    wxWidgetCocoaImpl* c = new wxWidgetCocoaImpl( wxpeer, v );
    [v setImplementation:c];
    return c;
/*
    OSStatus err;
    Rect bounds = wxMacGetBoundsForControl( wxpeer , pos , size ) ;
    wxMacControl* peer = new wxMacControl(wxpeer) ;
    if ( id == wxID_HELP )
    {
        ControlButtonContentInfo info ;
        info.contentType = kControlContentIconRef ;
        GetIconRef(kOnSystemDisk, kSystemIconsCreator, kHelpIcon, &info.u.iconRef);
        err = CreateRoundButtonControl(
            MAC_WXHWND(parent->MacGetTopLevelWindowRef()),
            &bounds, kControlRoundButtonNormalSize,
            &info, peer->GetControlRefAddr() );
    }
    else if ( label.Find('\n' ) == wxNOT_FOUND && label.Find('\r' ) == wxNOT_FOUND)
    {
        // Button height is static in Mac, can't be changed, so we need to force it here
        int maxHeight;
        switch (wxpeer->GetWindowVariant() ) 
        {
            case wxWINDOW_VARIANT_NORMAL:
            case wxWINDOW_VARIANT_LARGE:
                maxHeight = 20 ;
                break;
            case wxWINDOW_VARIANT_SMALL:
                maxHeight = 17;
            case wxWINDOW_VARIANT_MINI:
                maxHeight = 15;
            default:
                break;
        }
        bounds.bottom = bounds.top + maxHeight ;
        wxpeer->SetMaxSize( wxSize( wxpeer->GetMaxWidth() , maxHeight ));
        err = CreatePushButtonControl(
            MAC_WXHWND(parent->MacGetTopLevelWindowRef()),
            &bounds, CFSTR(""), peer->GetControlRefAddr() );
    }
    else
    {
        ControlButtonContentInfo info ;
        info.contentType = kControlNoContent ;
        err = CreateBevelButtonControl(
            MAC_WXHWND(parent->MacGetTopLevelWindowRef()) , &bounds, CFSTR(""),
            kControlBevelButtonLargeBevel, kControlBehaviorPushbutton,
            &info, 0, 0, 0, peer->GetControlRefAddr() );
    }
    verify_noerr( err );
    return peer;
    */
}

void wxWidgetCocoaImpl::SetDefaultButton( bool isDefault )
{ 
    if ( [m_osxView isKindOfClass:[NSButton class]] )
        [(NSButton*)m_osxView setKeyEquivalent: isDefault ? @"\r" : nil ];
}

void wxWidgetCocoaImpl::PerformClick() 
{
}

wxWidgetImplType* wxWidgetImpl::CreateDisclosureTriangle( wxWindowMac* wxpeer, 
                                    wxWindowMac* parent, 
                                    wxWindowID id, 
                                    const wxString& label,
                                    const wxPoint& pos, 
                                    const wxSize& size,
                                    long style, 
                                    long extraStyle) 
{
    NSRect r = wxOSXGetFrameForControl( wxpeer, pos , size ) ;
    wxNSButton* v = [[wxNSButton alloc] initWithFrame:r];
    [v setBezelStyle:NSDisclosureBezelStyle];
    [v setButtonType:NSOnOffButton];
    [v setTitle:wxCFStringRef( label).AsNSString()];
    [v setImagePosition:NSImageRight];
    wxWidgetCocoaImpl* c = new wxWidgetCocoaImpl( wxpeer, v );
    [v setImplementation:c];
    return c;
}