toplevel.cpp

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

///////////////////////////////////////////////////////////////////////////////
// Name:        src/mac/classic/toplevel.cpp
// Purpose:     implements wxTopLevelWindow for Mac
// Author:      Stefan Csomor
// Modified by:
// Created:     24.09.01
// RCS-ID:      $Id: toplevel.cpp,v 1.11 2006/06/13 20:44:37 ABX Exp $
// Copyright:   (c) 2001-2004 Stefan Csomor
// License:     wxWindows licence
///////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#include "wx/toplevel.h"

#ifndef WX_PRECOMP
    #include "wx/app.h"
    #include "wx/frame.h"
    #include "wx/string.h"
    #include "wx/log.h"
    #include "wx/intl.h"
#endif //WX_PRECOMP

#include "wx/mac/uma.h"
#include "wx/mac/aga.h"
#include "wx/tooltip.h"
#include "wx/dnd.h"
#if wxUSE_SYSTEM_OPTIONS
    #include "wx/sysopt.h"
#endif

#include <ToolUtils.h>


#define wxMAC_DEBUG_REDRAW 0
#ifndef wxMAC_DEBUG_REDRAW
#define wxMAC_DEBUG_REDRAW 0
#endif

// ----------------------------------------------------------------------------
// globals
// ----------------------------------------------------------------------------

// list of all frames and modeless dialogs
wxWindowList       wxModelessWindows;

// double click testing
static   Point     gs_lastWhere;
static   long      gs_lastWhen = 0;


#if TARGET_CARBON
static pascal long wxShapedMacWindowDef(short varCode, WindowRef window, SInt16 message, SInt32 param);
#endif

// ============================================================================
// wxTopLevelWindowMac implementation
// ============================================================================

// ---------------------------------------------------------------------------
// Carbon Events
// ---------------------------------------------------------------------------

#if TARGET_CARBON

extern long wxMacTranslateKey(unsigned char key, unsigned char code) ;

static const EventTypeSpec eventList[] =
{
    { kEventClassTextInput, kEventTextInputUnicodeForKeyEvent } ,

    { kEventClassKeyboard, kEventRawKeyDown } ,
    { kEventClassKeyboard, kEventRawKeyRepeat } ,
    { kEventClassKeyboard, kEventRawKeyUp } ,
    { kEventClassKeyboard, kEventRawKeyModifiersChanged } ,

    { kEventClassWindow , kEventWindowShown } ,
    { kEventClassWindow , kEventWindowUpdate } ,
    { kEventClassWindow , kEventWindowActivated } ,
    { kEventClassWindow , kEventWindowDeactivated } ,
    { kEventClassWindow , kEventWindowBoundsChanging } ,
    { kEventClassWindow , kEventWindowBoundsChanged } ,
    { kEventClassWindow , kEventWindowClose } ,

    { kEventClassMouse , kEventMouseDown } ,
    { kEventClassMouse , kEventMouseUp } ,
    { kEventClassMouse , kEventMouseWheelMoved } ,
    { kEventClassMouse , kEventMouseMoved } ,
    { kEventClassMouse , kEventMouseDragged } ,

} ;

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

    wxWindow* focus = wxWindow::FindFocus() ;
    char charCode ;
    UInt32 keyCode ;
    UInt32 modifiers ;
    Point point ;

    EventRef rawEvent ;

    GetEventParameter( event , kEventParamTextInputSendKeyboardEvent ,typeEventRef,NULL,sizeof(rawEvent),NULL,&rawEvent ) ;

    GetEventParameter( rawEvent, kEventParamKeyMacCharCodes, typeChar, NULL,sizeof(char), NULL,&charCode );
    GetEventParameter( rawEvent, kEventParamKeyCode, typeUInt32, NULL,  sizeof(UInt32), NULL, &keyCode );
       GetEventParameter( rawEvent, kEventParamKeyModifiers, typeUInt32, NULL, sizeof(UInt32), NULL, &modifiers);
    GetEventParameter( rawEvent, kEventParamMouseLocation, typeQDPoint, NULL,
        sizeof( Point ), NULL, &point );

    switch ( GetEventKind( event ) )
    {
        case kEventTextInputUnicodeForKeyEvent :
            // this is only called when no default handler has jumped in, eg a wxControl on a floater window does not
            // get its own kEventTextInputUnicodeForKeyEvent, so we route back the
            wxControl* control = wxDynamicCast( focus , wxControl ) ;
            if ( control )
            {
                ControlHandle macControl = (ControlHandle) control->GetMacControl() ;
                if ( macControl )
                {
                    ::HandleControlKey( macControl , keyCode , charCode , modifiers ) ;
                    result = noErr ;
                }
            }
            /*
            // this may lead to double events sent to a window in case all handlers have skipped the key down event
            UInt32 when = EventTimeToTicks( GetEventTime( event ) ) ;
            UInt32 message = (keyCode << 8) + charCode;

            if ( (focus != NULL) && wxTheApp->MacSendKeyDownEvent(
                focus , message , modifiers , when , point.h , point.v ) )
            {
                result = noErr ;
            }
            */
            break ;
    }

    return result ;
}

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

    wxWindow* focus = wxWindow::FindFocus() ;
    char charCode ;
    UInt32 keyCode ;
    UInt32 modifiers ;
    Point point ;
    UInt32 when = EventTimeToTicks( GetEventTime( event ) ) ;

    GetEventParameter( event, kEventParamKeyMacCharCodes, typeChar, NULL,sizeof(char), NULL,&charCode );
    GetEventParameter( event, kEventParamKeyCode, typeUInt32, NULL,  sizeof(UInt32), NULL, &keyCode );
       GetEventParameter(event, kEventParamKeyModifiers, typeUInt32, NULL, sizeof(UInt32), NULL, &modifiers);
    GetEventParameter( event, kEventParamMouseLocation, typeQDPoint, NULL,
        sizeof( Point ), NULL, &point );

    UInt32 message = (keyCode << 8) + charCode;
    switch( GetEventKind( event ) )
    {
        case kEventRawKeyRepeat :
        case kEventRawKeyDown :
            {
                WXEVENTREF formerEvent = wxTheApp->MacGetCurrentEvent() ;
                WXEVENTHANDLERCALLREF formerHandler = wxTheApp->MacGetCurrentEventHandlerCallRef() ;
                wxTheApp->MacSetCurrentEvent( event , handler ) ;
                if ( (focus != NULL) && wxTheApp->MacSendKeyDownEvent(
                    focus , message , modifiers , when , point.h , point.v ) )
                {
                    result = noErr ;
                }
                wxTheApp->MacSetCurrentEvent( formerEvent , formerHandler ) ;
            }
            break ;
        case kEventRawKeyUp :
            if ( (focus != NULL) && wxTheApp->MacSendKeyUpEvent(
                focus , message , modifiers , when , point.h , point.v ) )
            {
                result = noErr ;
            }
            break ;
        case kEventRawKeyModifiersChanged :
            {
                wxKeyEvent event(wxEVT_KEY_DOWN);

                event.m_shiftDown = modifiers & shiftKey;
                event.m_controlDown = modifiers & controlKey;
                event.m_altDown = modifiers & optionKey;
                event.m_metaDown = modifiers & cmdKey;

                event.m_x = point.h;
                event.m_y = point.v;
                event.SetTimestamp(when);
                wxWindow* focus = wxWindow::FindFocus() ;
                event.SetEventObject(focus);

                if ( focus && (modifiers ^ wxTheApp->s_lastModifiers ) & controlKey )
                {
                    event.m_keyCode = WXK_CONTROL ;
                    event.SetEventType( ( modifiers & controlKey ) ? wxEVT_KEY_DOWN : wxEVT_KEY_UP ) ;
                    focus->GetEventHandler()->ProcessEvent( event ) ;
                }
                if ( focus && (modifiers ^ wxTheApp->s_lastModifiers ) & shiftKey )
                {
                    event.m_keyCode = WXK_SHIFT ;
                    event.SetEventType( ( modifiers & shiftKey ) ? wxEVT_KEY_DOWN : wxEVT_KEY_UP ) ;
                    focus->GetEventHandler()->ProcessEvent( event ) ;
                }
                if ( focus && (modifiers ^ wxTheApp->s_lastModifiers ) & optionKey )
                {
                    event.m_keyCode = WXK_ALT ;
                    event.SetEventType( ( modifiers & optionKey ) ? wxEVT_KEY_DOWN : wxEVT_KEY_UP ) ;
                    focus->GetEventHandler()->ProcessEvent( event ) ;
                }
                if ( focus && (modifiers ^ wxTheApp->s_lastModifiers ) & cmdKey )
                {
                    event.m_keyCode = WXK_COMMAND ;
                    event.SetEventType( ( modifiers & cmdKey ) ? wxEVT_KEY_DOWN : wxEVT_KEY_UP ) ;
                    focus->GetEventHandler()->ProcessEvent( event ) ;
                }
                wxTheApp->s_lastModifiers = modifiers ;
            }
             break ;
    }

    return result ;
}

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

    wxTopLevelWindowMac* toplevelWindow = (wxTopLevelWindowMac*) data ;
    Point point ;
    UInt32 modifiers = 0;
    EventMouseButton button = 0 ;
    UInt32 click = 0 ;

    GetEventParameter( event, kEventParamMouseLocation, typeQDPoint, NULL,
        sizeof( Point ), NULL, &point );
    GetEventParameter( event, kEventParamKeyModifiers, typeUInt32, NULL,
        sizeof( UInt32 ), NULL, &modifiers );
    GetEventParameter( event, kEventParamMouseButton, typeMouseButton, NULL,
        sizeof( EventMouseButton ), NULL, &button );
    GetEventParameter( event, kEventParamClickCount, typeUInt32, NULL,
        sizeof( UInt32 ), NULL, &click );

    if ( button == 0 || GetEventKind( event ) == kEventMouseUp )
        modifiers += btnState ;

    // temporary hack to support true two button mouse
    if ( button == kEventMouseButtonSecondary )
    {
        modifiers |= controlKey ;
    }
    WindowRef window ;
    short windowPart = ::FindWindow(point, &window);

    // either we really are active or we are capturing mouse events

    if ( (IsWindowActive(window) && windowPart == inContent) ||
        (wxTheApp->s_captureWindow && wxTheApp->s_captureWindow->MacGetTopLevelWindow() == toplevelWindow) )
    {
        switch ( GetEventKind( event ) )
        {
            case kEventMouseDown :
                toplevelWindow->MacFireMouseEvent( mouseDown , point.h , point.v , modifiers , EventTimeToTicks( GetEventTime( event ) ) ) ;
                result = noErr ;
                break ;
            case kEventMouseUp :
                toplevelWindow->MacFireMouseEvent( mouseUp , point.h , point.v , modifiers , EventTimeToTicks( GetEventTime( event ) ) ) ;
                result = noErr ;
                break ;
            case kEventMouseMoved :
                wxTheApp->MacHandleMouseMovedEvent( point.h , point.v , modifiers , EventTimeToTicks( GetEventTime( event ) ) ) ;
                result = noErr ;
                break ;
            case kEventMouseDragged :
                toplevelWindow->MacFireMouseEvent( nullEvent , point.h , point.v , modifiers , EventTimeToTicks( GetEventTime( event ) ) ) ;
                result = noErr ;
                break ;
            case kEventMouseWheelMoved :
                {
                    //bClearTooltip = false;
                    EventMouseWheelAxis axis = kEventMouseWheelAxisY;
                    SInt32 delta = 0;
                    Point mouseLoc = {0, 0};
                    if (::GetEventParameter(event, kEventParamMouseWheelAxis, typeMouseWheelAxis,
                                        NULL, sizeof(EventMouseWheelAxis), NULL, &axis) == noErr &&
                        ::GetEventParameter(event, kEventParamMouseWheelDelta, typeLongInteger,
                                        NULL, sizeof(SInt32), NULL, &delta) == noErr &&
                        ::GetEventParameter(event, kEventParamMouseLocation, typeQDPoint,
                                        NULL, sizeof(Point), NULL, &mouseLoc) == noErr)
                    {
                        wxMouseEvent wheelEvent(wxEVT_MOUSEWHEEL);

                        wheelEvent.m_x = mouseLoc.h;
                        wheelEvent.m_y = mouseLoc.v;

                        wheelEvent.m_wheelRotation = delta;
                        wheelEvent.m_wheelDelta = 1;
                        wheelEvent.m_linesPerAction = 1;

                        wxWindow* currentMouseWindow = NULL;
                        wxWindow::MacGetWindowFromPoint(wxPoint(mouseLoc.h, mouseLoc.v), &currentMouseWindow);

                        if (currentMouseWindow)
                        {
                            currentMouseWindow->GetEventHandler()->ProcessEvent(wheelEvent);
                            result = noErr;
                        }
                    }
                }
                break ;
            default :
                break ;
        }
    }

    return result ;


}
static pascal OSStatus WindowEventHandler( EventHandlerCallRef handler , EventRef event , void *data )
{
    OSStatus result = eventNotHandledErr ;
    OSStatus err = noErr ;

    UInt32        attributes;
    WindowRef windowRef ;
    wxTopLevelWindowMac* toplevelWindow = (wxTopLevelWindowMac*) data ;

    GetEventParameter( event, kEventParamDirectObject, typeWindowRef, NULL,
        sizeof( WindowRef ), NULL, &windowRef );

    switch( GetEventKind( event ) )
    {
        case kEventWindowUpdate :
            if ( !wxPendingDelete.Member(toplevelWindow) )
                toplevelWindow->MacUpdate( EventTimeToTicks( GetEventTime( event ) ) ) ;
            result = noErr ;
            break ;
        case kEventWindowActivated :
                toplevelWindow->MacActivate( EventTimeToTicks( GetEventTime( event ) ) , true) ;
            result = noErr ;
            break ;
        case kEventWindowDeactivated :
                toplevelWindow->MacActivate( EventTimeToTicks( GetEventTime( event ) ) , false) ;
            result = noErr ;
            break ;