utils.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/utils.cpp
// Purpose:     Various utilities
// Author:      Stefan Csomor
// Modified by:
// Created:     1998-01-01
// RCS-ID:      $Id: utils.cpp,v 1.138 2006/12/10 13:18:35 SC Exp $
// Copyright:   (c) Stefan Csomor
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#include "wx/wxprec.h"

#include "wx/utils.h"

#ifndef WX_PRECOMP
    #include "wx/intl.h"
    #include "wx/app.h"
    #if wxUSE_GUI
        #include "wx/toplevel.h"
        #include "wx/font.h"
    #endif
#endif

#include "wx/apptrait.h"

#if wxUSE_GUI
    #include "wx/mac/uma.h"
#endif

#include <ctype.h>

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>

#include "MoreFilesX.h"

#ifndef __DARWIN__
    #include <Threads.h>
    #include <Sound.h>
#endif

#if wxUSE_GUI
#if TARGET_API_MAC_OSX
    #include <CoreServices/CoreServices.h>
#else
    #include <DriverServices.h>
    #include <Multiprocessing.h>
#endif

#ifdef __DARWIN__
    #include <Carbon/Carbon.h>
#else
    #include <ATSUnicode.h>
    #include <TextCommon.h>
    #include <TextEncodingConverter.h>
#endif
#endif // wxUSE_GUI

#include "wx/mac/private.h"

#if defined(__MWERKS__) && wxUSE_UNICODE
#if __MWERKS__ < 0x4100 || !defined(__DARWIN__)
    #include <wtime.h>
#endif
#endif

#if wxUSE_BASE

// our OS version is the same in non GUI and GUI cases
wxOperatingSystemId wxGetOsVersion(int *majorVsn, int *minorVsn)
{
    SInt32 theSystem;
    Gestalt(gestaltSystemVersion, &theSystem);

    if ( majorVsn != NULL )
        *majorVsn = (theSystem >> 8);

    if ( minorVsn != NULL )
        *minorVsn = (theSystem & 0xFF);

#if defined( __DARWIN__ )
    return wxOS_MAC_OSX_DARWIN;
#else
    return wxOS_MAC_OS;
#endif
}

// ----------------------------------------------------------------------------
// debugging support
// ----------------------------------------------------------------------------

#if defined(__WXDEBUG__) && defined(__WXMAC__) && !defined(__DARWIN__) && defined(__MWERKS__) && (__MWERKS__ >= 0x2400)

// MetroNub stuff doesn't seem to work in CodeWarrior 5.3 Carbon builds...

#ifndef __MetroNubUtils__
#include "MetroNubUtils.h"
#endif

#ifndef __GESTALT__
#include <Gestalt.h>
#endif

#if TARGET_API_MAC_CARBON

#include <CodeFragments.h>

extern "C" long CallUniversalProc(UniversalProcPtr theProcPtr, ProcInfoType procInfo, ...);

ProcPtr gCallUniversalProc_Proc = NULL;

#endif

static MetroNubUserEntryBlock*    gMetroNubEntry = NULL;

static long fRunOnce = false;


Boolean IsMetroNubInstalled()
{
    if (!fRunOnce)
    {
        long result, value;

        fRunOnce = true;
        gMetroNubEntry = NULL;

        if (Gestalt(gestaltSystemVersion, &value) == noErr && value < 0x1000)
        {
            // look for MetroNub's Gestalt selector
            if (Gestalt(kMetroNubUserSignature, &result) == noErr)
            {
#if TARGET_API_MAC_CARBON
                if (gCallUniversalProc_Proc == NULL)
                {
                    CFragConnectionID   connectionID;
                    Ptr                 mainAddress;
                    Str255              errorString;
                    ProcPtr             symbolAddress;
                    OSErr               err;
                    CFragSymbolClass    symbolClass;

                    symbolAddress = NULL;
                    err = GetSharedLibrary("\pInterfaceLib", kPowerPCCFragArch, kFindCFrag,
                                           &connectionID, &mainAddress, errorString);

                    if (err != noErr)
                    {
                        gCallUniversalProc_Proc = NULL;
                        goto end;
                    }

                    err = FindSymbol(connectionID, "\pCallUniversalProc",
                                    (Ptr *) &gCallUniversalProc_Proc, &symbolClass);

                    if (err != noErr)
                    {
                        gCallUniversalProc_Proc = NULL;
                        goto end;
                    }
                }
#endif

                {
                    MetroNubUserEntryBlock* block = (MetroNubUserEntryBlock *)result;

                    // make sure the version of the API is compatible
                    if (block->apiLowVersion <= kMetroNubUserAPIVersion &&
                        kMetroNubUserAPIVersion <= block->apiHiVersion)
                    {
                        // success!
                        gMetroNubEntry = block;
                    }
                }
            }
        }
    }

end:

#if TARGET_API_MAC_CARBON
    return (gMetroNubEntry != NULL && gCallUniversalProc_Proc != NULL);
#else
    return (gMetroNubEntry != NULL);
#endif
}

Boolean IsMWDebuggerRunning()
{
    if (IsMetroNubInstalled())
        return CallIsDebuggerRunningProc(gMetroNubEntry->isDebuggerRunning);

    return false;
}

Boolean AmIBeingMWDebugged()
{
    if (IsMetroNubInstalled())
        return CallAmIBeingDebuggedProc(gMetroNubEntry->amIBeingDebugged);

    return false;
}

extern bool WXDLLEXPORT wxIsDebuggerRunning()
{
    return IsMWDebuggerRunning() && AmIBeingMWDebugged();
}

#else

extern bool WXDLLEXPORT wxIsDebuggerRunning()
{
    return false;
}

#endif // defined(__WXMAC__) && !defined(__DARWIN__) && (__MWERKS__ >= 0x2400)


#ifndef __DARWIN__
// defined in unix/utilsunx.cpp for Mac OS X

// get full hostname (with domain name if possible)
bool wxGetFullHostName(wxChar *buf, int maxSize)
{
    return wxGetHostName(buf, maxSize);
}

// Get user ID e.g. jacs
bool wxGetUserId(wxChar *buf, int maxSize)
{
    return wxGetUserName( buf , maxSize );
}

const wxChar* wxGetHomeDir(wxString *pstr)
{
    *pstr = wxMacFindFolder( (short) kOnSystemDisk, kPreferencesFolderType, kDontCreateFolder );
    return pstr->c_str();
}

// Get hostname only (without domain name)
bool wxGetHostName(wxChar *buf, int maxSize)
{
    // Gets Chooser name of user by examining a System resource.
    buf[0] = 0;

    const short kComputerNameID = -16413;

    short oldResFile = CurResFile();
    UseResFile(0);
    StringHandle chooserName = (StringHandle)::GetString(kComputerNameID);
    UseResFile(oldResFile);

    if (chooserName && *chooserName)
    {
        HLock( (Handle) chooserName );
        wxString name = wxMacMakeStringFromPascal( *chooserName );
        HUnlock( (Handle) chooserName );
        ReleaseResource( (Handle) chooserName );
        wxStrncpy( buf , name , maxSize - 1 );
    }

    return true;
}

// Get user name e.g. Stefan Csomor
bool wxGetUserName(wxChar *buf, int maxSize)
{
    // Gets Chooser name of user by examining a System resource.
    buf[0] = 0;

    const short kChooserNameID = -16096;

    short oldResFile = CurResFile();
    UseResFile(0);
    StringHandle chooserName = (StringHandle)::GetString(kChooserNameID);
    UseResFile(oldResFile);

    if (chooserName && *chooserName)
    {
        HLock( (Handle) chooserName );
        wxString name = wxMacMakeStringFromPascal( *chooserName );
        HUnlock( (Handle) chooserName );
        ReleaseResource( (Handle) chooserName );
        wxStrncpy( buf , name , maxSize - 1 );
    }

    return true;
}

int wxKill(long pid, wxSignal sig , wxKillError *rc, int flags)
{
    // TODO
    return 0;
}

WXDLLEXPORT bool wxGetEnv(const wxString& var, wxString *value)
{
    // TODO : under classic there is no environement support, under X yes
    return false;
}

// set the env var name to the given value, return true on success
WXDLLEXPORT bool wxSetEnv(const wxString& var, const wxChar *value)
{
    // TODO : under classic there is no environement support, under X yes
    return false;
}

// Execute a program in an Interactive Shell
bool wxShell(const wxString& command)
{
    // TODO
    return false;
}

// Shutdown or reboot the PC
bool wxShutdown(wxShutdownFlags wFlags)
{
    // TODO
    return false;
}

// Get free memory in bytes, or -1 if cannot determine amount (e.g. on UNIX)
wxMemorySize wxGetFreeMemory()
{
    return (wxMemorySize)FreeMem();
}

#ifndef __DARWIN__

void wxMicroSleep(unsigned long microseconds)
{
    AbsoluteTime wakeup = AddDurationToAbsolute( microseconds * durationMicrosecond , UpTime());
    MPDelayUntil( & wakeup);
}

void wxMilliSleep(unsigned long milliseconds)
{
    AbsoluteTime wakeup = AddDurationToAbsolute( milliseconds, UpTime());
    MPDelayUntil( & wakeup);
}

void wxSleep(int nSecs)
{
    wxMilliSleep(1000*nSecs);
}

#endif

// Consume all events until no more left
void wxFlushEvents()
{
}

#endif // !__DARWIN__

// Emit a beeeeeep
void wxBell()
{
#ifndef __LP64__
    SysBeep(30);
#endif
}


#endif // wxUSE_BASE

#if wxUSE_GUI

wxPortId wxGUIAppTraits::GetToolkitVersion(int *verMaj, int *verMin) const
{
    // We suppose that toolkit version is the same as OS version under Mac
    wxGetOsVersion(verMaj, verMin);

    return wxPORT_MAC;
}

// Reading and writing resources (eg WIN.INI, .Xdefaults)
#if wxUSE_RESOURCES
bool wxWriteResource(const wxString& section, const wxString& entry, const wxString& value, const wxString& file)
{
    // TODO
    return false;
}

bool wxWriteResource(const wxString& section, const wxString& entry, float value, const wxString& file)
{
    wxString buf;
    buf.Printf(wxT("%.4f"), value);

    return wxWriteResource(section, entry, buf, file);
}

bool wxWriteResource(const wxString& section, const wxString& entry, long value, const wxString& file)
{
    wxString buf;
    buf.Printf(wxT("%ld"), value);

    return wxWriteResource(section, entry, buf, file);
}

bool wxWriteResource(const wxString& section, const wxString& entry, int value, const wxString& file)
{
    wxString buf;
    buf.Printf(wxT("%d"), value);

    return wxWriteResource(section, entry, buf, file);
}

bool wxGetResource(const wxString& section, const wxString& entry, char **value, const wxString& file)
{
    // TODO
    return false;
}

bool wxGetResource(const wxString& section, const wxString& entry, float *value, const wxString& file)
{
    char *s = NULL;
    bool succ = wxGetResource(section, entry, (char **)&s, file);
    if (succ)
    {
        *value = (float)strtod(s, NULL);
        delete[] s;
    }

    return succ;
}

bool wxGetResource(const wxString& section, const wxString& entry, long *value, const wxString& file)
{
    char *s = NULL;
    bool succ = wxGetResource(section, entry, (char **)&s, file);
    if (succ)
    {
        *value = strtol(s, NULL, 10);
        delete[] s;
    }

    return succ;
}

bool wxGetResource(const wxString& section, const wxString& entry, int *value, const wxString& file)
{
    char *s = NULL;
    bool succ = wxGetResource(section, entry, (char **)&s, file);
    if (succ)
    {
        *value = (int)strtol(s, NULL, 10);
        delete[] s;
    }

    return succ;
}
#endif // wxUSE_RESOURCES

int gs_wxBusyCursorCount = 0;
extern wxCursor    gMacCurrentCursor;
wxCursor        gMacStoredActiveCursor;

// Set the cursor to the busy cursor for all windows
void wxBeginBusyCursor(const wxCursor *cursor)
{
    if (gs_wxBusyCursorCount++ == 0)
    {
        gMacStoredActiveCursor = gMacCurrentCursor;
        cursor->MacInstall();
    }
    //else: nothing to do, already set
}