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utilscmn.cpp
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2002-12-17
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/////////////////////////////////////////////////////////////////////////////
// Name: utilscmn.cpp
// Purpose: Miscellaneous utility functions and classes
// Author: Julian Smart
// Modified by:
// Created: 29/01/98
// RCS-ID: $Id: utilscmn.cpp,v 1.93.2.7 2002/12/16 23:08:31 RD Exp $
// Copyright: (c) 1998 Julian Smart
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#ifdef __GNUG__
#pragma implementation "utils.h"
#endif
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#ifndef WX_PRECOMP
#include "wx/defs.h"
#include "wx/string.h"
#include "wx/utils.h"
#include "wx/intl.h"
#include "wx/log.h"
#if wxUSE_GUI
#include "wx/app.h"
#include "wx/window.h"
#include "wx/frame.h"
#include "wx/menu.h"
#include "wx/msgdlg.h"
#include "wx/textdlg.h"
#include "wx/textctrl.h" // for wxTE_PASSWORD
#if wxUSE_ACCEL
#include "wx/menuitem.h"
#include "wx/accel.h"
#endif // wxUSE_ACCEL
#endif // wxUSE_GUI
#endif // WX_PRECOMP
#ifndef __WIN16__
#include "wx/process.h"
#include "wx/txtstrm.h"
#endif
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if !defined(__WATCOMC__)
#if !(defined(_MSC_VER) && (_MSC_VER > 800))
#include <errno.h>
#endif
#endif
#if wxUSE_GUI
#include "wx/colordlg.h"
#include "wx/fontdlg.h"
#include "wx/notebook.h"
#include "wx/frame.h"
#include "wx/statusbr.h"
#endif // wxUSE_GUI
#include <time.h>
#ifndef __MWERKS__
#include <sys/types.h>
#include <sys/stat.h>
#endif
#ifdef __SALFORDC__
#include <clib.h>
#endif
#ifdef __WXMSW__
#include "wx/msw/private.h"
#endif
// ----------------------------------------------------------------------------
// common data
// ----------------------------------------------------------------------------
#if WXWIN_COMPATIBILITY_2_2
const wxChar *wxInternalErrorStr = wxT("wxWindows Internal Error");
const wxChar *wxFatalErrorStr = wxT("wxWindows Fatal Error");
#endif // WXWIN_COMPATIBILITY_2_2
// ============================================================================
// implementation
// ============================================================================
wxChar *
copystring (const wxChar *s)
{
if (s == NULL) s = wxT("");
size_t len = wxStrlen (s) + 1;
wxChar *news = new wxChar[len];
memcpy (news, s, len * sizeof(wxChar)); // Should be the fastest
return news;
}
// Id generation
static long wxCurrentId = 100;
long
wxNewId (void)
{
return wxCurrentId++;
}
long
wxGetCurrentId(void) { return wxCurrentId; }
void
wxRegisterId (long id)
{
if (id >= wxCurrentId)
wxCurrentId = id + 1;
}
void
StringToFloat (const wxChar *s, float *number)
{
if (s && *s && number)
*number = (float) wxStrtod (s, (wxChar **) NULL);
}
void
StringToDouble (const wxChar *s, double *number)
{
if (s && *s && number)
*number = wxStrtod (s, (wxChar **) NULL);
}
wxChar *
FloatToString (float number, const wxChar *fmt)
{
static wxChar buf[256];
wxSprintf (buf, fmt, number);
return buf;
}
wxChar *
DoubleToString (double number, const wxChar *fmt)
{
static wxChar buf[256];
wxSprintf (buf, fmt, number);
return buf;
}
void
StringToInt (const wxChar *s, int *number)
{
if (s && *s && number)
*number = (int) wxStrtol (s, (wxChar **) NULL, 10);
}
void
StringToLong (const wxChar *s, long *number)
{
if (s && *s && number)
*number = wxStrtol (s, (wxChar **) NULL, 10);
}
wxChar *
IntToString (int number)
{
static wxChar buf[20];
wxSprintf (buf, wxT("%d"), number);
return buf;
}
wxChar *
LongToString (long number)
{
static wxChar buf[20];
wxSprintf (buf, wxT("%ld"), number);
return buf;
}
// Array used in DecToHex conversion routine.
static wxChar hexArray[] = wxT("0123456789ABCDEF");
// Convert 2-digit hex number to decimal
int wxHexToDec(const wxString& buf)
{
int firstDigit, secondDigit;
if (buf.GetChar(0) >= wxT('A'))
firstDigit = buf.GetChar(0) - wxT('A') + 10;
else
firstDigit = buf.GetChar(0) - wxT('0');
if (buf.GetChar(1) >= wxT('A'))
secondDigit = buf.GetChar(1) - wxT('A') + 10;
else
secondDigit = buf.GetChar(1) - wxT('0');
return (firstDigit & 0xF) * 16 + (secondDigit & 0xF );
}
// Convert decimal integer to 2-character hex string
void wxDecToHex(int dec, wxChar *buf)
{
int firstDigit = (int)(dec/16.0);
int secondDigit = (int)(dec - (firstDigit*16.0));
buf[0] = hexArray[firstDigit];
buf[1] = hexArray[secondDigit];
buf[2] = 0;
}
// Convert decimal integer to 2-character hex string
wxString wxDecToHex(int dec)
{
wxChar buf[3];
wxDecToHex(dec, buf);
return wxString(buf);
}
#if WXWIN_COMPATIBILITY_2
bool
StringMatch (const wxChar *str1, const wxChar *str2, bool subString, bool exact)
{
if (str1 == NULL || str2 == NULL)
return FALSE;
if (str1 == str2)
return TRUE;
if (subString)
{
int len1 = wxStrlen (str1);
int len2 = wxStrlen (str2);
int i;
// Search for str1 in str2
// Slow .... but acceptable for short strings
for (i = 0; i <= len2 - len1; i++)
{
if (wxStrnicmp (str1, str2 + i, len1) == 0)
return TRUE;
}
}
else if (exact)
{
if (wxStricmp (str1, str2) == 0)
return TRUE;
}
else
{
int len1 = wxStrlen (str1);
int len2 = wxStrlen (str2);
if (wxStrnicmp (str1, str2, wxMin (len1, len2)) == 0)
return TRUE;
}
return FALSE;
}
#endif
// Return the current date/time
// [volatile]
wxString wxNow()
{
time_t now = time((time_t *) NULL);
char *date = ctime(&now);
date[24] = '\0';
return wxString::FromAscii(date);
}
#if wxUSE_GUI
#if wxUSE_MENUS
// ----------------------------------------------------------------------------
// Menu accelerators related functions
// ----------------------------------------------------------------------------
wxChar *wxStripMenuCodes(const wxChar *in, wxChar *out)
{
wxString s = wxMenuItem::GetLabelFromText(in);
if ( out )
{
// go smash their buffer if it's not big enough - I love char * params
memcpy(out, s.c_str(), s.length() * sizeof(wxChar));
}
else
{
out = copystring(s);
}
return out;
}
wxString wxStripMenuCodes(const wxString& in)
{
wxString out;
size_t len = in.length();
out.reserve(len);
for ( size_t n = 0; n < len; n++ )
{
wxChar ch = in[n];
if ( ch == _T('&') )
{
// skip it, it is used to introduce the accel char (or to quote
// itself in which case it should still be skipped): note that it
// can't be the last character of the string
if ( ++n == len )
{
wxLogDebug(_T("Invalid menu string '%s'"), in.c_str());
}
else
{
// use the next char instead
ch = in[n];
}
}
else if ( ch == _T('\t') )
{
// everything after TAB is accel string, exit the loop
break;
}
out += ch;
}
return out;
}
#endif // wxUSE_MENUS
// ----------------------------------------------------------------------------
// Window search functions
// ----------------------------------------------------------------------------
/*
* If parent is non-NULL, look through children for a label or title
* matching the specified string. If NULL, look through all top-level windows.
*
*/
wxWindow *
wxFindWindowByLabel (const wxString& title, wxWindow * parent)
{
return wxWindow::FindWindowByLabel( title, parent );
}
/*
* If parent is non-NULL, look through children for a name
* matching the specified string. If NULL, look through all top-level windows.
*
*/
wxWindow *
wxFindWindowByName (const wxString& name, wxWindow * parent)
{
return wxWindow::FindWindowByName( name, parent );
}
// Returns menu item id or -1 if none.
int
wxFindMenuItemId (wxFrame * frame, const wxString& menuString, const wxString& itemString)
{
#if wxUSE_MENUS
wxMenuBar *menuBar = frame->GetMenuBar ();
if ( menuBar )
return menuBar->FindMenuItem (menuString, itemString);
#endif // wxUSE_MENUS
return -1;
}
// Try to find the deepest child that contains 'pt'.
// We go backwards, to try to allow for controls that are spacially
// within other controls, but are still siblings (e.g. buttons within
// static boxes). Static boxes are likely to be created _before_ controls
// that sit inside them.
wxWindow* wxFindWindowAtPoint(wxWindow* win, const wxPoint& pt)
{
if (!win->IsShown())
return NULL;
// Hack for wxNotebook case: at least in wxGTK, all pages
// claim to be shown, so we must only deal with the selected one.
#if wxUSE_NOTEBOOK
if (win->IsKindOf(CLASSINFO(wxNotebook)))
{
wxNotebook* nb = (wxNotebook*) win;
int sel = nb->GetSelection();
if (sel >= 0)
{
wxWindow* child = nb->GetPage(sel);
wxWindow* foundWin = wxFindWindowAtPoint(child, pt);
if (foundWin)
return foundWin;
}
}
#endif
/* Doesn't work
// Frame case
else if (win->IsKindOf(CLASSINFO(wxFrame)))
{
// Pseudo-children that may not be mentioned in the child list
wxWindowList extraChildren;
wxFrame* frame = (wxFrame*) win;
if (frame->GetStatusBar())
extraChildren.Append(frame->GetStatusBar());
if (frame->GetToolBar())
extraChildren.Append(frame->GetToolBar());
wxNode* node = extraChildren.First();
while (node)
{
wxWindow* child = (wxWindow*) node->Data();
wxWindow* foundWin = wxFindWindowAtPoint(child, pt);
if (foundWin)
return foundWin;
node = node->Next();
}
}
*/
wxNode* node = win->GetChildren().Last();
while (node)
{
wxWindow* child = (wxWindow*) node->Data();
wxWindow* foundWin = wxFindWindowAtPoint(child, pt);
if (foundWin)
return foundWin;
node = node->Previous();
}
wxPoint pos = win->GetPosition();
wxSize sz = win->GetSize();
if (win->GetParent())
{
pos = win->GetParent()->ClientToScreen(pos);
}
wxRect rect(pos, sz);
if (rect.Inside(pt))
return win;
else
return NULL;
}
wxWindow* wxGenericFindWindowAtPoint(const wxPoint& pt)
{
// Go backwards through the list since windows
// on top are likely to have been appended most
// recently.
wxNode* node = wxTopLevelWindows.Last();
while (node)
{
wxWindow* win = (wxWindow*) node->Data();
wxWindow* found = wxFindWindowAtPoint(win, pt);
if (found)
return found;
node = node->Previous();
}
return NULL;
}
#endif // wxUSE_GUI
/*
On Fri, 21 Jul 1995, Paul Craven wrote:
> Is there a way to find the path of running program's executable? I can get
> my home directory, and the current directory, but I don't know how to get the
> executable directory.
>
The code below (warty as it is), does what you want on most Unix,
DOS, and Mac platforms (it's from the ALS Prolog main).
|| Ken Bowen Applied Logic Systems, Inc. PO Box 180,
||==== Voice: +1 (617)965-9191 Newton Centre,
|| FAX: +1 (617)965-1636 MA 02159 USA
Email: ken@als.com WWW: http://www.als.com
------------------------------------------------------------------------
*/
// This code is commented out but it may be integrated with wxWin at
// a later date, after testing. Thanks Ken!
#if 0
/*--------------------------------------------------------------------*
| whereami is given a filename f in the form: whereami(argv[0])
| It returns the directory in which the executable file (containing
| this code [main.c] ) may be found. A dot will be returned to indicate
| the current directory.
*--------------------------------------------------------------------*/
static void
whereami(name)
char *name;
{
register char *cutoff = NULL; /* stifle -Wall */
register char *s;
register char *t;
int cc;
char ebuf[4096];
/*
* See if the file is accessible either through the current directory
* or through an absolute path.
*/
if (access(name, R_OK) == 0) {
/*-------------------------------------------------------------*
* The file was accessible without any other work. But the current
* working directory might change on us, so if it was accessible
* through the cwd, then we should get it for later accesses.
*-------------------------------------------------------------*/
t = imagedir;
if (!absolute_pathname(name)) {
#if defined(__DOS__) || defined(__WIN32__)
int drive;
char *newrbuf;
newrbuf = imagedir;
#ifndef __DJGPP__
if (*(name + 1) == ':') {
if (*name >= 'a' && *name <= 'z')
drive = (int) (*name - 'a' + 1);
else
drive = (int) (*name - 'A' + 1);
*newrbuf++ = *name;
*newrbuf++ = *(name + 1);
*newrbuf++ = DIR_SEPARATOR;
}
else {
drive = 0;
*newrbuf++ = DIR_SEPARATOR;
}
if (getcwd(newrbuf, drive) == 0) { /* } */
#else
if (getcwd(newrbuf, 1024) == 0) { /* } */
#endif
#else /* DOS */
#ifdef HAVE_GETWD
if (getwd(imagedir) == 0) { /* } */
#else /* !HAVE_GETWD */
if (getcwd(imagedir, 1024) == 0) {
#endif /* !HAVE_GETWD */
#endif /* DOS */
fatal_error(FE_GETCWD, 0);
}
for (; *t; t++) /* Set t to end of buffer */
;
if (*(t - 1) == DIR_SEPARATOR) /* leave slash if already
* last char
*/
cutoff = t - 1;
else {
cutoff = t; /* otherwise put one in */
*t++ = DIR_SEPARATOR;
}
}
#if (!defined(__MAC__) && !defined(__DJGPP__) && !defined(__GO32__) && !defined(__WIN32__))
else
(*t++ = DIR_SEPARATOR);
#endif
/*-------------------------------------------------------------*
* Copy the rest of the string and set the cutoff if it was not
* already set. If the first character of name is a slash, cutoff
* is not presently set but will be on the first iteration of the
* loop below.
*-------------------------------------------------------------*/
for ((*name == DIR_SEPARATOR ? (s = name+1) : (s = name));;) {
if (*s == DIR_SEPARATOR)
cutoff = t;
if (!(*t++ = *s++))
break;
}
}
else {
/*-------------------------------------------------------------*
* Get the path list from the environment. If the path list is
* inaccessible for any reason, leave with fatal error.
*-------------------------------------------------------------*/
#ifdef __MAC__
if ((s = getenv("Commands")) == (char *) 0)
#else
if ((s = getenv("PATH")) == (char *) 0)
#endif
fatal_error(FE_PATH, 0);
/*
* Copy path list into ebuf and set the source pointer to the
* beginning of this buffer.
*/
strcpy(ebuf, s);
s = ebuf;
for (;;) {
t = imagedir;
while (*s && *s != PATH_SEPARATOR)
*t++ = *s++;
if (t > imagedir && *(t - 1) == DIR_SEPARATOR)
; /* do nothing -- slash already is in place */
else
*t++ = DIR_SEPARATOR; /* put in the slash */
cutoff = t - 1; /* set cutoff */
strcpy(t, name);
if (access(imagedir, R_OK) == 0)
break;
if (*s)
s++; /* advance source pointer */
else
fatal_error(FE_INFND, 0);
}
}
/*-------------------------------------------------------------*
| At this point the full pathname should exist in imagedir and
| cutoff should be set to the final slash. We must now determine
| whether the file name is a symbolic link or not and chase it down
| if it is. Note that we reuse ebuf for getting the link.
*-------------------------------------------------------------*/
#ifdef HAVE_SYMLINK
while ((cc = readlink(imagedir, ebuf, 512)) != -1) {
ebuf[cc] = 0;
s = ebuf;
if (*s == DIR_SEPARATOR) {
t = imagedir;
}
else {
t = cutoff + 1;
}
for (;;) {
if (*s == DIR_SEPARATOR)
cutoff = t; /* mark the last slash seen */
if (!(*t++ = *s++)) /* copy the character */
break;
}
}
#endif /* HAVE_SYMLINK */
strcpy(imagename, cutoff + 1); /* keep the image name */
*(cutoff + 1) = 0; /* chop off the filename part */
}
#endif
#if wxUSE_GUI
// ----------------------------------------------------------------------------
// GUI helpers
// ----------------------------------------------------------------------------
/*
* N.B. these convenience functions must be separate from msgdlgg.cpp, textdlgg.cpp
* since otherwise the generic code may be pulled in unnecessarily.
*/
#if wxUSE_MSGDLG
int wxMessageBox(const wxString& message, const wxString& caption, long style,
wxWindow *parent, int WXUNUSED(x), int WXUNUSED(y) )
{
wxMessageDialog dialog(parent, message, caption, style);
int ans = dialog.ShowModal();
switch ( ans )
{
case wxID_OK:
return wxOK;
case wxID_YES:
return wxYES;
case wxID_NO:
return wxNO;
case wxID_CANCEL:
return wxCANCEL;
}
wxFAIL_MSG( _T("unexpected return code from wxMessageDialog") );
return wxCANCEL;
}
#endif // wxUSE_MSGDLG
#if wxUSE_TEXTDLG
wxString wxGetTextFromUser(const wxString& message, const wxString& caption,
const wxString& defaultValue, wxWindow *parent,
int x, int y, bool WXUNUSED(centre) )
{
wxString str;
wxTextEntryDialog dialog(parent, message, caption, defaultValue, wxOK|wxCANCEL, wxPoint(x, y));
if (dialog.ShowModal() == wxID_OK)
{
str = dialog.GetValue();
}
return str;
}
wxString wxGetPasswordFromUser(const wxString& message,
const wxString& caption,
const wxString& defaultValue,
wxWindow *parent)
{
wxString str;
wxTextEntryDialog dialog(parent, message, caption, defaultValue,
wxOK | wxCANCEL | wxTE_PASSWORD);
if ( dialog.ShowModal() == wxID_OK )
{
str = dialog.GetValue();
}
return str;
}
#endif // wxUSE_TEXTDLG
#if wxUSE_COLOURDLG
wxColour wxGetColourFromUser(wxWindow *parent, const wxColour& colInit)
{
wxColourData data;
data.SetChooseFull(TRUE);
if ( colInit.Ok() )
{
data.SetColour((wxColour &)colInit); // const_cast
}
wxColour colRet;
wxColourDialog dialog(parent, &data);
if ( dialog.ShowModal() == wxID_OK )
{
colRet = dialog.GetColourData().GetColour();
}
//else: leave it invalid
return colRet;
}
#endif // wxUSE_COLOURDLG
#if wxUSE_FONTDLG
wxFont wxGetFontFromUser(wxWindow *parent, const wxFont& fontInit)
{
wxFontData data;
if ( fontInit.Ok() )
{
data.SetInitialFont(fontInit);
}
wxFont fontRet;
wxFontDialog dialog(parent, data);
if ( dialog.ShowModal() == wxID_OK )
{
fontRet = dialog.GetFontData().GetChosenFont();
}
//else: leave it invalid
return fontRet;
}
#endif // wxUSE_FONTDLG
// ----------------------------------------------------------------------------
// missing C RTL functions (FIXME shouldn't be here at all)
// ----------------------------------------------------------------------------
#ifdef __MWERKS__
#if __MSL__ < 0x7000
char *strdup(const char *s)
{
return strcpy( (char*) malloc( strlen( s ) + 1 ) , s ) ;
}
#endif
int isascii( int c )
{
return ( c >= 0 && c < 128 ) ;
}
#endif // __MWERKS__
// ----------------------------------------------------------------------------
// wxSafeYield and supporting functions
// ----------------------------------------------------------------------------
void wxEnableTopLevelWindows(bool enable)
{
wxWindowList::Node *node;
for ( node = wxTopLevelWindows.GetFirst(); node; node = node->GetNext() )
node->GetData()->Enable(enable);
}
wxWindowDisabler::wxWindowDisabler(wxWindow *winToSkip)
{
// remember the top level windows which were already disabled, so that we
// don't reenable them later
m_winDisabled = NULL;
wxWindowList::Node *node;
for ( node = wxTopLevelWindows.GetFirst(); node; node = node->GetNext() )
{
wxWindow *winTop = node->GetData();
if ( winTop == winToSkip )
continue;
if ( winTop->IsEnabled() )
{
winTop->Disable();
}
else
{
if ( !m_winDisabled )
{
m_winDisabled = new wxWindowList;
}
m_winDisabled->Append(winTop);
}
}
}
wxWindowDisabler::~wxWindowDisabler()
{
wxWindowList::Node *node;
for ( node = wxTopLevelWindows.GetFirst(); node; node = node->GetNext() )
{
wxWindow *winTop = node->GetData();
if ( !m_winDisabled || !m_winDisabled->Find(winTop) )
{
winTop->Enable();
}
//else: had been already disabled, don't reenable
}
delete m_winDisabled;
}
// Yield to other apps/messages and disable user input to all windows except
// the given one
bool wxSafeYield(wxWindow *win, bool onlyIfNeeded)
{
wxWindowDisabler wd(win);
bool rc;
if (onlyIfNeeded)
rc = wxYieldIfNeeded();
else
rc = wxYield();
return rc;
}
// ----------------------------------------------------------------------------
// misc functions
// ----------------------------------------------------------------------------
// Don't synthesize KeyUp events holding down a key and producing KeyDown
// events with autorepeat. On by default and always on in wxMSW. wxGTK version
// in utilsgtk.cpp.
#ifndef __WXGTK__
bool wxSetDetectableAutoRepeat( bool WXUNUSED(flag) )
{
return TRUE; // detectable auto-repeat is the only mode MSW supports
}
#endif // !wxGTK
#endif // wxUSE_GUI
const wxChar *wxGetInstallPrefix()
{
wxString prefix;
if ( wxGetEnv(wxT("WXPREFIX"), &prefix) )
return prefix.c_str();
#ifdef wxINSTALL_PREFIX
return wxT(wxINSTALL_PREFIX);
#else
return wxT("");
#endif
}
wxString wxGetDataDir()
{
wxString format = wxGetInstallPrefix();
format << wxFILE_SEP_PATH
<< wxT("share") << wxFILE_SEP_PATH
<< wxT("wx") << wxFILE_SEP_PATH
<< wxT("%i.%i");
wxString dir;
dir.Printf(format.c_str(), wxMAJOR_VERSION, wxMINOR_VERSION);
return dir;
}
// ----------------------------------------------------------------------------
// network and user id functions
// ----------------------------------------------------------------------------
// Get Full RFC822 style email address
bool wxGetEmailAddress(wxChar *address, int maxSize)
{
wxString email = wxGetEmailAddress();
if ( !email )
return FALSE;
wxStrncpy(address, email, maxSize - 1);
address[maxSize - 1] = wxT('\0');
return TRUE;
}
wxString wxGetEmailAddress()
{
wxString email;
wxString host = wxGetFullHostName();
if ( !!host )
{
wxString user = wxGetUserId();
if ( !!user )
{
email << user << wxT('@') << host;
}
}
return email;
}
wxString wxGetUserId()
{
static const int maxLoginLen = 256; // FIXME arbitrary number
wxString buf;
bool ok = wxGetUserId(buf.GetWriteBuf(maxLoginLen), maxLoginLen);
buf.UngetWriteBuf();
if ( !ok )
buf.Empty();
return buf;
}
wxString wxGetUserName()
{
static const int maxUserNameLen = 1024; // FIXME arbitrary number
wxString buf;
bool ok = wxGetUserName(buf.GetWriteBuf(maxUserNameLen), maxUserNameLen);
buf.UngetWriteBuf();
if ( !ok )
buf.Empty();
return buf;
}
wxString wxGetHostName()
{
static const size_t hostnameSize = 257;
wxString buf;
bool ok = wxGetHostName(buf.GetWriteBuf(hostnameSize), hostnameSize);
buf.UngetWriteBuf();
if ( !ok )
buf.Empty();
return buf;
}
wxString wxGetFullHostName()
{
static const size_t hostnameSize = 257;
wxString buf;
bool ok = wxGetFullHostName(buf.GetWriteBuf(hostnameSize), hostnameSize);
buf.UngetWriteBuf();
if ( !ok )
buf.Empty();
return buf;
}
wxString wxGetHomeDir()
{
wxString home;
wxGetHomeDir(&home);
return home;
}
#if 0
wxString wxGetCurrentDir()
{
wxString dir;
size_t len = 1024;
bool ok;
do
{
ok = getcwd(dir.GetWriteBuf(len + 1), len) != NULL;
dir.UngetWriteBuf();
if ( !ok )
{
if ( errno != ERANGE )
{
wxLogSysError(_T("Failed to get current directory"));
return wxEmptyString;
}
else
{
// buffer was too small, retry with a larger one
len *= 2;
}
}
//else: ok
} while ( !ok );
return dir;
}
#endif // 0
// ----------------------------------------------------------------------------
// wxExecute
// ----------------------------------------------------------------------------
// wxDoExecuteWithCapture() helper: reads an entire stream into one array
//
// returns TRUE if ok, FALSE if error
static bool ReadAll(wxInputStream *is, wxArrayString& output)
{
wxCHECK_MSG( is, FALSE, _T("NULL stream in wxExecute()?") );
// the stream could be already at EOF or in wxSTREAM_BROKEN_PIPE state
is->Reset();
wxTextInputStream tis(*is);
bool cont = TRUE;
while ( cont )
{
wxString line = tis.ReadLine();
if ( is->Eof() )
break;
if ( !*is )
{
cont = FALSE;
}
else
{
output.Add(line);
}
}
return cont;
}
// this is a private function because it hasn't a clean interface: the first
// array is passed by reference, the second by pointer - instead we have 2
// public versions of wxExecute() below
static long wxDoExecuteWithCapture(const wxString& command,
wxArrayString& output,
wxArrayString* error)
{
#ifdef __WIN16__
wxFAIL_MSG("Sorry, this version of wxExecute not implemented on WIN16.");
return 0;
#else // !Win16
// create a wxProcess which will capture the output
wxProcess *process = new wxProcess;
process->Redirect();
long rc = wxExecute(command, wxEXEC_SYNC, process);
#if wxUSE_STREAMS
if ( rc != -1 )
{
if ( !ReadAll(process->GetInputStream(), output) )
rc = -1;
if ( error )
{
if ( !ReadAll(process->GetErrorStream(), *error) )
rc = -1;
}
}
#endif // wxUSE_STREAMS
delete process;
return rc;
#endif // IO redirection supoprted
}
long wxExecute(const wxString& command, wxArrayString& output)
{
return wxDoExecuteWithCapture(command, output, NULL);
}
long wxExecute(const wxString& command,
wxArrayString& output,
wxArrayString& error)
{
return wxDoExecuteWithCapture(command, output, &error);
}
// ----------------------------------------------------------------------------
// wxApp::Yield() wrappers for backwards compatibility
// ----------------------------------------------------------------------------
bool wxYield()
{
#if wxUSE_GUI
return wxTheApp && wxTheApp->Yield();
#else
return FALSE;
#endif
}
bool wxYieldIfNeeded()
{
#if wxUSE_GUI
return wxTheApp && wxTheApp->Yield(TRUE);
#else
return FALSE;
#endif
}