toolbar.cpp

很牛的GUI源码wxWidgets-2.8.0.zip 可在多种平台下运行.

/////////////////////////////////////////////////////////////////////////////
// Name:        src/mac/carbon/toolbar.cpp
// Purpose:     wxToolBar
// Author:      Stefan Csomor
// Modified by:
// Created:     04/01/98
// RCS-ID:      $Id: toolbar.cpp,v 1.116 2006/12/10 13:19:50 SC Exp $
// Copyright:   (c) Stefan Csomor
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#include "wx/wxprec.h"

#if wxUSE_TOOLBAR

#include "wx/toolbar.h"

#ifndef WX_PRECOMP
    #include "wx/wx.h"
#endif

#include "wx/app.h"
#include "wx/mac/uma.h"
#include "wx/geometry.h"


#ifdef __WXMAC_OSX__
const short kwxMacToolBarToolDefaultWidth = 16;
const short kwxMacToolBarToolDefaultHeight = 16;
const short kwxMacToolBarTopMargin = 4;
const short kwxMacToolBarLeftMargin =  4;
const short kwxMacToolBorder = 0;
const short kwxMacToolSpacing = 6;
#else
const short kwxMacToolBarToolDefaultWidth = 24;
const short kwxMacToolBarToolDefaultHeight = 22;
const short kwxMacToolBarTopMargin = 2;
const short kwxMacToolBarLeftMargin = 2;
const short kwxMacToolBorder = 4;
const short kwxMacToolSpacing = 0;
#endif


IMPLEMENT_DYNAMIC_CLASS(wxToolBar, wxControl)

BEGIN_EVENT_TABLE(wxToolBar, wxToolBarBase)
    EVT_PAINT( wxToolBar::OnPaint )
END_EVENT_TABLE()


#pragma mark -
#pragma mark Tool Implementation


// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------

// We have a dual implementation for each tool, ControlRef and HIToolbarItemRef

class wxToolBarTool : public wxToolBarToolBase
{
public:
    wxToolBarTool(
        wxToolBar *tbar,
        int id,
        const wxString& label,
        const wxBitmap& bmpNormal,
        const wxBitmap& bmpDisabled,
        wxItemKind kind,
        wxObject *clientData,
        const wxString& shortHelp,
        const wxString& longHelp );

    wxToolBarTool(wxToolBar *tbar, wxControl *control)
        : wxToolBarToolBase(tbar, control)
    {
        Init();
        if (control != NULL)
            SetControlHandle( (ControlRef) control->GetHandle() );
    }

    virtual ~wxToolBarTool()
    {
        ClearControl();
    }

    WXWidget GetControlHandle()
    {
        return (WXWidget) m_controlHandle;
    }

    void SetControlHandle( ControlRef handle )
    {
        m_controlHandle = handle;
    }

    void SetPosition( const wxPoint& position );

    void ClearControl()
    {
        m_control = NULL;
        if ( m_controlHandle )
        {
            if ( !IsControl() )
                DisposeControl( m_controlHandle );
            else
            {
                // the embedded control is not under the responsibility of the tool
            }
            m_controlHandle = NULL ;
        }

#if wxMAC_USE_NATIVE_TOOLBAR
        if ( m_toolbarItemRef )
        {
            CFIndex count = CFGetRetainCount( m_toolbarItemRef ) ;
            wxASSERT_MSG( count == 1 , wxT("Reference Count of native tool was not 1 in wxToolBarTool destructor") );
            wxTheApp->MacAddToAutorelease(m_toolbarItemRef);
            CFRelease(m_toolbarItemRef);
            m_toolbarItemRef = NULL;
        }
#endif
    }

    wxSize GetSize() const
    {
        wxSize curSize;

        if ( IsControl() )
        {
            curSize = GetControl()->GetSize();
        }
        else if ( IsButton() )
        {
            curSize = GetToolBar()->GetToolSize();
        }
        else
        {
            // separator size
            curSize = GetToolBar()->GetToolSize();
            if ( GetToolBar()->GetWindowStyleFlag() & wxTB_VERTICAL )
                curSize.y /= 4;
            else
                curSize.x /= 4;
        }

        return curSize;
    }

    wxPoint GetPosition() const
    {
        return wxPoint( m_x, m_y );
    }

    bool DoEnable( bool enable );

    void UpdateToggleImage( bool toggle );

#if wxMAC_USE_NATIVE_TOOLBAR
    void SetToolbarItemRef( HIToolbarItemRef ref )
    {
        if ( m_controlHandle )
            HideControl( m_controlHandle );
        if ( m_toolbarItemRef )
            CFRelease( m_toolbarItemRef );

        m_toolbarItemRef = ref;
        if ( m_toolbarItemRef )
        {
            HIToolbarItemSetHelpText(
                m_toolbarItemRef,
                wxMacCFStringHolder( GetShortHelp(), GetToolBar()->GetFont().GetEncoding() ),
                wxMacCFStringHolder( GetLongHelp(), GetToolBar()->GetFont().GetEncoding() ) );
        }
    }

    HIToolbarItemRef GetToolbarItemRef() const
    {
        return m_toolbarItemRef;
    }

    void SetIndex( CFIndex idx )
    {
        m_index = idx;
    }

    CFIndex GetIndex() const
    {
        return m_index;
    }
#endif

private:
    void Init()
    {
        m_controlHandle = NULL;

#if wxMAC_USE_NATIVE_TOOLBAR
        m_toolbarItemRef = NULL;
        m_index = -1;
#endif
    }

    ControlRef m_controlHandle;
    wxCoord     m_x;
    wxCoord     m_y;

#if wxMAC_USE_NATIVE_TOOLBAR
    HIToolbarItemRef m_toolbarItemRef;
    // position in its toolbar, -1 means not inserted
    CFIndex m_index;
#endif
};

static const EventTypeSpec eventList[] =
{
    { kEventClassControl, kEventControlHit },
#ifdef __WXMAC_OSX__
    { kEventClassControl, kEventControlHitTest },
#endif
};

static pascal OSStatus wxMacToolBarToolControlEventHandler( EventHandlerCallRef handler, EventRef event, void *data )
{
    OSStatus result = eventNotHandledErr;
    ControlRef controlRef;
    wxMacCarbonEvent cEvent( event );

    cEvent.GetParameter( kEventParamDirectObject, &controlRef );

    switch ( GetEventKind( event ) )
    {
        case kEventControlHit:
            {
                wxToolBarTool *tbartool = (wxToolBarTool*)data;
                wxToolBar *tbar = tbartool != NULL ? (wxToolBar*) (tbartool->GetToolBar()) : NULL;
                if ((tbartool != NULL) && tbartool->CanBeToggled())
                {
                    bool    shouldToggle;

#ifdef __WXMAC_OSX__
                    shouldToggle = !tbartool->IsToggled();
#else
                    shouldToggle = (GetControl32BitValue( (ControlRef)(tbartool->GetControlHandle()) ) != 0);
#endif

                    tbar->ToggleTool( tbartool->GetId(), shouldToggle );
                }

                if (tbartool != NULL)
                    tbar->OnLeftClick( tbartool->GetId(), tbartool->IsToggled() );
                result = noErr;
            }
            break;

#ifdef __WXMAC_OSX__
        case kEventControlHitTest:
            {
                HIPoint pt = cEvent.GetParameter<HIPoint>(kEventParamMouseLocation);
                HIRect rect;
                HIViewGetBounds( controlRef, &rect );

                ControlPartCode pc = kControlNoPart;
                if ( CGRectContainsPoint( rect, pt ) )
                    pc = kControlIconPart;
                cEvent.SetParameter( kEventParamControlPart, typeControlPartCode, pc );
                result = noErr;
            }
            break;
#endif

        default:
            break;
    }

    return result;
}

static pascal OSStatus wxMacToolBarToolEventHandler( EventHandlerCallRef handler, EventRef event, void *data )
{
    OSStatus result = eventNotHandledErr;

    switch ( GetEventClass( event ) )
    {
        case kEventClassControl:
            result = wxMacToolBarToolControlEventHandler( handler, event, data );
            break;

        default:
            break;
    }

    return result;
}

DEFINE_ONE_SHOT_HANDLER_GETTER( wxMacToolBarToolEventHandler )

#if wxMAC_USE_NATIVE_TOOLBAR

static const EventTypeSpec toolBarEventList[] =
{
    { kEventClassToolbarItem, kEventToolbarItemPerformAction },
};

static pascal OSStatus wxMacToolBarCommandEventHandler( EventHandlerCallRef handler, EventRef event, void *data )
{
    OSStatus result = eventNotHandledErr;

    switch ( GetEventKind( event ) )
    {
        case kEventToolbarItemPerformAction:
            {
                wxToolBarTool* tbartool = (wxToolBarTool*) data;
                if ( tbartool != NULL )
                {
                    wxToolBar *tbar = (wxToolBar*)(tbartool->GetToolBar());
                    int toolID = tbartool->GetId();

                    if ( tbartool->CanBeToggled() )
                    {
                        if ( tbar != NULL )
                            tbar->ToggleTool(toolID, !tbartool->IsToggled() );
                    }

                    if ( tbar != NULL )
                        tbar->OnLeftClick( toolID, tbartool->IsToggled() );
                    result = noErr;
                }
            }
            break;

        default:
            break;
    }

    return result;
}

static pascal OSStatus wxMacToolBarEventHandler( EventHandlerCallRef handler, EventRef event, void *data )
{
    OSStatus result = eventNotHandledErr;

    switch ( GetEventClass( event ) )
    {
        case kEventClassToolbarItem:
            result = wxMacToolBarCommandEventHandler( handler, event, data );
            break;

        default:
            break;
    }

    return result;
}

DEFINE_ONE_SHOT_HANDLER_GETTER( wxMacToolBarEventHandler )

#endif

bool wxToolBarTool::DoEnable( bool enable )
{
    if ( IsControl() )
    {
        GetControl()->Enable( enable );
    }
    else if ( IsButton() )
    {
#if wxMAC_USE_NATIVE_TOOLBAR
        if ( m_toolbarItemRef != NULL )
            HIToolbarItemSetEnabled( m_toolbarItemRef, enable );
#endif

        if ( m_controlHandle != NULL )
        {
#if TARGET_API_MAC_OSX
            if ( enable )
                EnableControl( m_controlHandle );
            else
                DisableControl( m_controlHandle );
#else
            if ( enable )
                ActivateControl( m_controlHandle );
            else
                DeactivateControl( m_controlHandle );
#endif
        }
    }

    return true;
}

void wxToolBarTool::SetPosition( const wxPoint& position )
{
    m_x = position.x;
    m_y = position.y;

    int mac_x = position.x;
    int mac_y = position.y;

    if ( IsButton() )
    {
        Rect contrlRect;
        GetControlBounds( m_controlHandle, &contrlRect );
        int former_mac_x = contrlRect.left;
        int former_mac_y = contrlRect.top;
        GetToolBar()->GetToolSize();

        if ( mac_x != former_mac_x || mac_y != former_mac_y )
        {
            UMAMoveControl( m_controlHandle, mac_x, mac_y );
        }
    }
    else if ( IsControl() )
    {
        // embedded native controls are moved by the OS
#if wxMAC_USE_NATIVE_TOOLBAR
        if ( ((wxToolBar*)GetToolBar())->MacWantsNativeToolbar() == false )
#endif
        {