app.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/app.cpp
// Purpose:     wxApp
// Author:      Stefan Csomor
// Modified by:
// Created:     1998-01-01
// RCS-ID:      $Id: app.cpp,v 1.34 2006/08/31 19:30:49 ABX Exp $
// Copyright:   (c) Stefan Csomor
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#include "wx/app.h"

#ifndef WX_PRECOMP
    #include "wx/intl.h"
    #include "wx/log.h"
    #include "wx/utils.h"
    #include "wx/window.h"
    #include "wx/frame.h"
    #include "wx/dc.h"
    #include "wx/button.h"
    #include "wx/menu.h"
    #include "wx/pen.h"
    #include "wx/brush.h"
    #include "wx/palette.h"
    #include "wx/icon.h"
    #include "wx/cursor.h"
    #include "wx/dialog.h"
    #include "wx/msgdlg.h"
    #include "wx/textctrl.h"
    #include "wx/memory.h"
    #include "wx/gdicmn.h"
    #include "wx/module.h"
#endif

#include "wx/tooltip.h"
#include "wx/docview.h"
#include "wx/filename.h"

#include <string.h>

// mac

#ifndef __DARWIN__
    #if __option(profile)
        #include <profiler.h>
    #endif
#endif

#include "apprsrc.h"

#include "wx/mac/uma.h"
#include "wx/mac/macnotfy.h"

#ifdef __DARWIN__
#  include <CoreServices/CoreServices.h>
#  if defined(WXMAKINGDLL_CORE)
#    include <mach-o/dyld.h>
#  endif
#else
#  include <Sound.h>
#  include <Threads.h>
#  include <ToolUtils.h>
#  include <DiskInit.h>
#  include <Devices.h>
#endif

extern wxList wxPendingDelete;
extern wxList *wxWinMacWindowList;
extern wxList *wxWinMacControlList;
#if wxUSE_THREADS
extern size_t g_numberOfThreads;
#endif // wxUSE_THREADS

// statics for implementation

static bool s_inYield = false;

#if TARGET_CARBON
static bool s_inReceiveEvent = false ;
static EventTime sleepTime = kEventDurationNoWait ;
#else
static long sleepTime = 0 ;
#endif

IMPLEMENT_DYNAMIC_CLASS(wxApp, wxEvtHandler)
BEGIN_EVENT_TABLE(wxApp, wxEvtHandler)
    EVT_IDLE(wxApp::OnIdle)
    EVT_END_SESSION(wxApp::OnEndSession)
    EVT_QUERY_END_SESSION(wxApp::OnQueryEndSession)
END_EVENT_TABLE()

const short    kMacMinHeap = (29 * 1024) ;
// platform specific static variables

const short kwxMacMenuBarResource = 1 ;
const short kwxMacAppleMenuId = 1 ;

WXHRGN    wxApp::s_macCursorRgn = NULL;
wxWindow* wxApp::s_captureWindow = NULL ;
int       wxApp::s_lastMouseDown = 0 ;
long      wxApp::sm_lastMessageTime = 0;
long      wxApp::s_lastModifiers = 0 ;


bool      wxApp::s_macSupportPCMenuShortcuts = true ;
long      wxApp::s_macAboutMenuItemId = wxID_ABOUT ;
long      wxApp::s_macPreferencesMenuItemId = wxID_PREFERENCES ;
long      wxApp::s_macExitMenuItemId = wxID_EXIT ;
wxString  wxApp::s_macHelpMenuTitleName = wxT("&Help") ;

// Normally we're not a plugin
bool      wxApp::sm_isEmbedded = false;
//----------------------------------------------------------------------
// Core Apple Event Support
//----------------------------------------------------------------------

pascal OSErr AEHandleODoc( const AppleEvent *event , AppleEvent *reply , long refcon ) ;
pascal OSErr AEHandleOApp( const AppleEvent *event , AppleEvent *reply , long refcon ) ;
pascal OSErr AEHandlePDoc( const AppleEvent *event , AppleEvent *reply , long refcon ) ;
pascal OSErr AEHandleQuit( const AppleEvent *event , AppleEvent *reply , long refcon ) ;
pascal OSErr AEHandleRApp( const AppleEvent *event , AppleEvent *reply , long refcon ) ;

pascal OSErr AEHandleODoc( const AppleEvent *event , AppleEvent *reply , long WXUNUSED(refcon) )
{
    return wxTheApp->MacHandleAEODoc( (AppleEvent*) event , reply) ;
}

pascal OSErr AEHandleOApp( const AppleEvent *event , AppleEvent *reply , long WXUNUSED(refcon) )
{
    return wxTheApp->MacHandleAEOApp( (AppleEvent*) event , reply ) ;
}

pascal OSErr AEHandlePDoc( const AppleEvent *event , AppleEvent *reply , long WXUNUSED(refcon) )
{
    return wxTheApp->MacHandleAEPDoc( (AppleEvent*) event , reply ) ;
}

pascal OSErr AEHandleQuit( const AppleEvent *event , AppleEvent *reply , long WXUNUSED(refcon) )
{
    return wxTheApp->MacHandleAEQuit( (AppleEvent*) event , reply) ;
}

pascal OSErr AEHandleRApp( const AppleEvent *event , AppleEvent *reply , long WXUNUSED(refcon) )
{
    return wxTheApp->MacHandleAERApp( (AppleEvent*) event , reply) ;
}

// AEODoc Calls MacOpenFile on each of the files passed

short wxApp::MacHandleAEODoc(const WXEVENTREF event, WXEVENTREF WXUNUSED(reply))
{
    AEDescList docList;
    AEKeyword keywd;
    DescType returnedType;
    Size actualSize;
    long itemsInList;
    FSSpec theSpec;
    OSErr err;
    short i;
    err = AEGetParamDesc((AppleEvent *)event, keyDirectObject, typeAEList,&docList);
    if (err != noErr)
        return err;

    err = AECountItems(&docList, &itemsInList);
    if (err != noErr)
        return err;

    ProcessSerialNumber PSN ;
    PSN.highLongOfPSN = 0 ;
    PSN.lowLongOfPSN = kCurrentProcess ;
    SetFrontProcess( &PSN ) ;

    for (i = 1; i <= itemsInList; i++) {
        AEGetNthPtr(&docList, i, typeFSS, &keywd, &returnedType,
        (Ptr) & theSpec, sizeof(theSpec), &actualSize);
        wxString fName = wxMacFSSpec2MacFilename(&theSpec);
        MacOpenFile(fName);
    }
    return noErr;
}

// AEPDoc Calls MacPrintFile on each of the files passed

short wxApp::MacHandleAEPDoc(const WXEVENTREF event , WXEVENTREF WXUNUSED(reply))
{
    AEDescList docList;
    AEKeyword keywd;
    DescType returnedType;
    Size actualSize;
    long itemsInList;
    FSSpec theSpec;
    OSErr err;
    short i;
    err = AEGetParamDesc((AppleEvent *)event, keyDirectObject, typeAEList,&docList);
    if (err != noErr)
        return err;

    err = AECountItems(&docList, &itemsInList);
    if (err != noErr)
        return err;

    ProcessSerialNumber PSN ;
    PSN.highLongOfPSN = 0 ;
    PSN.lowLongOfPSN = kCurrentProcess ;
    SetFrontProcess( &PSN ) ;

    for (i = 1; i <= itemsInList; i++) {
        AEGetNthPtr(&docList, i, typeFSS, &keywd, &returnedType,
        (Ptr) & theSpec, sizeof(theSpec), &actualSize);
        wxString fName = wxMacFSSpec2MacFilename(&theSpec);
        MacPrintFile(fName);
    }
    return noErr;
}

// AEOApp calls MacNewFile

short wxApp::MacHandleAEOApp(const WXEVENTREF WXUNUSED(event) , WXEVENTREF WXUNUSED(reply))
{
    MacNewFile() ;
    return noErr ;
}

// AEQuit attempts to quit the application

short wxApp::MacHandleAEQuit(const WXEVENTREF WXUNUSED(event) , WXEVENTREF WXUNUSED(reply))
{
    wxWindow* win = GetTopWindow() ;
    if ( win )
    {
        wxCommandEvent exitEvent(wxEVT_COMMAND_MENU_SELECTED, s_macExitMenuItemId);
        if (!win->ProcessEvent(exitEvent))
            win->Close(true) ;
    }
    else
    {
        ExitMainLoop() ;
    }
    return noErr ;
}

// AEROApp calls MacReopenApp

short wxApp::MacHandleAERApp(const WXEVENTREF WXUNUSED(event) , WXEVENTREF WXUNUSED(reply))
{
    MacReopenApp() ;
    return noErr ;
}


//----------------------------------------------------------------------
// Support Routines linking the Mac...File Calls to the Document Manager
//----------------------------------------------------------------------

void wxApp::MacOpenFile(const wxString & fileName )
{
    wxDocManager* dm = wxDocManager::GetDocumentManager() ;
    if ( dm )
        dm->CreateDocument(fileName , wxDOC_SILENT ) ;
}

void wxApp::MacPrintFile(const wxString & fileName )
{
    wxDocManager* dm = wxDocManager::GetDocumentManager() ;
    if ( dm )
    {
        wxDocument *doc = dm->CreateDocument(fileName , wxDOC_SILENT ) ;
        if ( doc )
        {
            wxView* view = doc->GetFirstView() ;
            if( view )
            {
                wxPrintout *printout = view->OnCreatePrintout();
                if (printout)
                {
                    wxPrinter printer;
                    printer.Print(view->GetFrame(), printout, true);
                    delete printout;
                }
            }
            if (doc->Close())
            {
                doc->DeleteAllViews();
                dm->RemoveDocument(doc) ;
            }
        }
    }
}

void wxApp::MacNewFile()
{
}

void wxApp::MacReopenApp()
{
    // eventually check for open docs, if none, call MacNewFile
}

//----------------------------------------------------------------------
// Carbon Event Handler
//----------------------------------------------------------------------

#if TARGET_CARBON

    static const EventTypeSpec eventList[] =
    {
        { kEventClassCommand, kEventProcessCommand } ,
        { kEventClassCommand, kEventCommandUpdateStatus } ,

        { kEventClassMenu, kEventMenuOpening },
        { kEventClassMenu, kEventMenuClosed },
        { kEventClassMenu, kEventMenuTargetItem },

        { kEventClassApplication , kEventAppActivated } ,
        { kEventClassApplication , kEventAppDeactivated } ,
        // handling the quit event is not recommended by apple
        // rather using the quit apple event - which we do

        { kEventClassAppleEvent , kEventAppleEvent } ,

        { kEventClassMouse , kEventMouseDown } ,
        { kEventClassMouse , kEventMouseMoved } ,
        { kEventClassMouse , kEventMouseUp } ,
        { kEventClassMouse , kEventMouseDragged } ,
        { 'WXMC' , 'WXMC' }
    } ;

static pascal OSStatus
MenuEventHandler( EventHandlerCallRef handler , EventRef event , void *data )
{
    wxMenuBar* mbar = wxMenuBar::MacGetInstalledMenuBar();

    if ( mbar )
    {
        wxFrame* win = mbar->GetFrame();
        if ( win )
        {

            // VZ: we could find the menu from its handle here by examining all
            //     the menus in the menu bar recursively but knowing that neither
            //     wxMSW nor wxGTK do it why bother...
#if 0
            MenuRef menuRef;

            GetEventParameter(event,
                              kEventParamDirectObject,
                              typeMenuRef, NULL,
                              sizeof(menuRef), NULL,
                              &menuRef);
#endif // 0

            wxEventType type=0;
            MenuCommand cmd=0;
            switch (GetEventKind(event))
            {
                case kEventMenuOpening:
                    type = wxEVT_MENU_OPEN;
                    break;
                case kEventMenuClosed:
                    type = wxEVT_MENU_CLOSE;
                    break;
                case kEventMenuTargetItem:
                    type = wxEVT_MENU_HIGHLIGHT;
                    GetEventParameter(event, kEventParamMenuCommand,
                                      typeMenuCommand, NULL,
                                      sizeof(cmd), NULL, &cmd);
                    if (cmd == 0) return eventNotHandledErr;
                    break;
                default:
                    wxFAIL_MSG(wxT("Unexpected menu event kind"));
                    break;
            }

            wxMenuEvent wxevent(type, cmd);
            wxevent.SetEventObject(win);

            (void)win->GetEventHandler()->ProcessEvent(wxevent);
        }
    }

    return eventNotHandledErr;
}

// due to the rather low-level event API of wxWidgets, we cannot use RunApplicationEventLoop
// but have to use ReceiveNextEvent dealing with events manually, therefore we also have
// to deal with clicks in the menu bar explicitly

pascal OSStatus wxMacWindowEventHandler( EventHandlerCallRef handler , EventRef event , void *data ) ;

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

    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 ;


    switch( GetEventKind(event) )
    {
        case kEventMouseDown :
        {
            WindowRef window ;

            short windowPart = ::FindWindow(point, &window);

            if ( windowPart == inMenuBar )
            {
                MenuSelect( point ) ;
                result = noErr ;
            }
        }
        break ;
        case kEventMouseDragged :