campo-sirio/xvaga/oswin32.cpp

#include "wxinc.h"
#include "wx/filename.h"
#include "wx/image.h"
#include "wx/paper.h"

#include "oswin32.h"
#include "aclapi.h"

#include "xvt_menu.h"
#include "xvt_help.h"

#define WIN32_LEAN_AND_MEAN
#define WIN32_EXTRA_LEAN
#define STRICT
#include <windows.h>
#include <winspool.h>
#include <shellapi.h>

bool OsWin32_CheckPrinterInfo(const void* data, unsigned int size)
{
	bool ok = data != NULL;
	if (ok)
	{
	  LPDEVMODE pdm = (LPDEVMODE)data;
	  const unsigned int s = pdm->dmSize + pdm->dmDriverExtra;
		ok = s > 0 && s == size;
	}
	return ok;
}

static void TestPaper(PDEVMODE dm)
{
  wxPrintPaperType* paper = wxThePrintPaperDatabase->FindPaperTypeByPlatformId(dm->dmPaperSize);
  if (paper == NULL)
  {
    dm->dmFields |= DM_PAPERSIZE;
    wxThePrintPaperDatabase->WXADDPAPER((wxPaperSize)dm->dmPaperSize /*wxPAPER_NONE*/, dm->dmPaperSize, 
                                        dm->dmFormName, dm->dmPaperWidth, dm->dmPaperLength);
  }
}

static void adjust_extra(WORD& w)
{
  if (w > 4096)
    w = 0;
}

void* OsWin32_ConvertFromNativePrinterInfo(void* hGlobal, unsigned int& nDataSize)
{
  void* buff = NULL;
  if (hGlobal != NULL)
  {
	  PDEVMODE dm = (PDEVMODE)::GlobalLock(hGlobal);
    adjust_extra(dm->dmDriverExtra);
	  nDataSize = dm->dmSize+dm->dmDriverExtra;
	  buff = new char[nDataSize]; 
    TestPaper(dm);
	  memcpy(buff, dm, nDataSize);
	  ::GlobalUnlock(hGlobal);
  }
	return buff;
}

void* OsWin32_ConvertToNativePrinterInfo(void* data, unsigned int nDataSize)
{
	HGLOBAL hGlobal = ::GlobalAlloc(GHND, nDataSize); // Alloco lo spazio necessario
  if (hGlobal != NULL)
  {
	  PDEVMODE dm = (PDEVMODE)::GlobalLock(hGlobal);  // Trasformo l'handle in puntatore
	  memcpy(dm, data, nDataSize);                    // Ricopio i dati della stampante
    adjust_extra(dm->dmDriverExtra);
    TestPaper(dm);                                  // Controllo il formato della carta 
	  ::GlobalUnlock(hGlobal);                        // Libero il lock sull'handle
  }
	return hGlobal;
}

struct XvtData
{
	char** families;
	long* sizes;
  short* scalable;
	int max_count;
	int cur_count;

	XvtData() {	memset(this, 0, sizeof(XvtData));	}
};

int CALLBACK FamilyEnumerator(
  const LOGFONT *plf,        // pointer to logical-font data
  const TEXTMETRIC *lpntme,  // pointer to physical-font data
  unsigned long FontType,    // type of font
  LPARAM lParam              // application-defined data
)
{
	XvtData* d = (XvtData*)lParam;
  int& n = d->cur_count;
  int i;
  for (i = n-1; i >= 0 && wxStricmp(d->families[i], plf->lfFaceName); i--);
  if (i < 0) // Controlla che il nome del font non ci sia gia'
	  d->families[n++] = _strdup(plf->lfFaceName);
	return n < d->max_count;
}

int CALLBACK SizeEnumerator(
  const LOGFONT *plf,        // pointer to logical-font data
  const TEXTMETRIC *lpntme,  // pointer to physical-font data
  unsigned long FontType,    // type of font
  LPARAM lParam              // application-defined data
)
{
	XvtData* d = (XvtData*)lParam;
  int& i = d->cur_count; 
	int size = (plf->lfHeight+5) / 10;
  if (size <= 0)
  {
    for (const char* n = plf->lfFaceName; *n; n++) 
      if (*n >= '1' && *n <= '9')
      {
        size = int(120.0 / atoi(n) + 0.5);
        break;
      }
    if (size <= 0)
      size = 12;
  }
	if (i == 0 || size > d->sizes[i-1])
	{
	  d->sizes[i] = size;
		if (lpntme->tmPitchAndFamily & TMPF_TRUETYPE)
			*d->scalable = TRUE;
	  i++;
	}
	return i < d->max_count;
}

int FamilySorter(const void* p1,const void* p2)
{
	const char* s1 = *(const char**)p1;
	const char* s2 = *(const char**)p2;
	return wxStricmp(s1, s2);
}

int OsWin32_EnumerateFamilies(WXHDC hDC, char** families, int max_count)
{
	XvtData data;
	data.families = families;
	data.max_count = max_count;
	LOGFONT lf; memset(&lf, 0, sizeof(lf));
  lf.lfCharSet = DEFAULT_CHARSET;
  ::EnumFontFamiliesEx((HDC)hDC, &lf, FamilyEnumerator, (LPARAM)&data, 0);
	qsort(families, data.cur_count, sizeof(char*), FamilySorter);
	return data.cur_count;
}

int OsWin32_EnumerateSizes(WXHDC hDC, const char* name, long* sizes, short* scalable, int max_count)
{
	XvtData data;
	data.sizes = sizes;
	data.scalable = scalable;
	data.max_count = max_count;
	LOGFONT lf; memset(&lf, 0, sizeof(lf));
  lf.lfCharSet = DEFAULT_CHARSET;
	strcpy(lf.lfFaceName, name);
  ::EnumFontFamiliesEx((HDC)hDC, &lf, SizeEnumerator, (LPARAM)&data, 0);

	return data.cur_count;
}

void* OsWin32_GetPrinterInfo(int& size, const char* printer)
{
	char name[_MAX_PATH];

	size = 0;
	if (printer == NULL || *printer == '\0')
	{
		if (::GetProfileString("windows", "device", ",,,", name, sizeof(name)) == 0)
			return NULL;
		char* comma = strchr(name, ',');
		if (comma) *comma = '\0';
	}
	else
		strncpy(name, printer, sizeof(name));

	LPDEVMODE pdm = NULL;
	HANDLE hPrinter;
	if (::OpenPrinter(name, &hPrinter, NULL) != 0)
	{
		size = ::DocumentProperties(0, hPrinter, name, NULL, NULL, 0); // Determina dimensione DEVMODE
		if (size > 0)
		{
			pdm = (LPDEVMODE)new char[size]; // Alloca un DEVMODE sufficientemente capiente
      memset(pdm, 0, size);
			::DocumentProperties(0, hPrinter, name, pdm, NULL, DM_OUT_BUFFER); // Legge DEVMODE
		}
		else
			size = 0;
		::ClosePrinter(hPrinter);
	}
	return pdm;
}

void OsWin32_SetCaptionStyle(WXHWND handle, bool set)
{
	HWND hwnd = (HWND)handle;
	DWORD s = ::GetWindowLong(hwnd, GWL_STYLE);
	if (set)
	  s |= WS_CAPTION;
	else
	  s &= ~WS_CAPTION;
  s |= WS_CLIPSIBLINGS; // Forzatura necessaria da wx261
	::SetWindowLong(hwnd, GWL_STYLE, s);
}

///////////////////////////////////////////////////////////
// Drawing bitmaps
///////////////////////////////////////////////////////////

HBITMAP OsWin32_CreateBitmap(const wxImage& img, wxDC& dc)
{
  static wxPalette pal;

  HDC hDC = (HDC)dc.GetHDC();
  int nDepth = dc.GetDepth();

  // Altrimenti le stampanti in B/N perdono i toni di grigio
  if (nDepth == 1 && !OsWin32_IsWindowsServer())  
  {
    hDC = NULL;
    nDepth = 24;
  }
  
  if (nDepth == 8)
  {
    if (!pal.Ok())
    {
      unsigned char red[256], green[256], blue[256];
      PALETTEENTRY pe[256]; memset(pe, 0, sizeof(pe));
      UINT nEntries = ::GetSystemPaletteEntries(hDC, 0, 256, pe);
      for (UINT i = 0; i < nEntries; i++)
      {
        red[i]   = pe[i].peRed;
        green[i] = pe[i].peGreen;
        blue[i]  = pe[i].peBlue;
      }
      pal.Create(nEntries, red, green, blue);
    }
    dc.SetPalette(pal);
  }

  const int nWidth = img.GetWidth();
  const int nHeight = img.GetHeight();
  
  int nBytesPerLine = 0;
  int nPadding = 0; 
  int nBitCount = 24;

  switch (nDepth)
  {
  case 32:      // Better if > Win98 :-) too
    nBitCount = 32;
    nBytesPerLine = nWidth*4;
    break;
  default:
    nBytesPerLine = nWidth*3;
    break;
  }
  const int nResto = nBytesPerLine % 4;
  if (nResto != 0)
  {
    nPadding = 4 - nResto;
    nBytesPerLine += nPadding;
  }

  const int nImageSize = nHeight*nBytesPerLine;

   // Create the DIB section
  unsigned char* pbits = (unsigned char*)calloc(nImageSize, 1);
  const size_t bi_size = sizeof(BITMAPINFOHEADER);
  BITMAPINFO* bi = (BITMAPINFO*)calloc(bi_size, 1);
  bi->bmiHeader.biSize = bi_size;
  bi->bmiHeader.biWidth = nWidth;
  bi->bmiHeader.biHeight = -nHeight;
  bi->bmiHeader.biCompression = BI_RGB;
  bi->bmiHeader.biPlanes = 1;
  bi->bmiHeader.biBitCount = nBitCount;
  bi->bmiHeader.biSizeImage = nImageSize;

  switch (nBitCount)
  {
  case 24:
    {
      unsigned char* d = img.GetData();
      unsigned char* p = pbits;
      for (int y = 0; y < nHeight; y++)
      {
        for (int x = 0; x < nWidth; x++)
        {
          *(p++) = *(d+2);
          *(p++) = *(d+1);
          *(p++) = *(d+0);
          d += 3;
        }
        for (int i = 0; i < nPadding; i++)
          *(p++) = 0;
      }
    }
    break;
  case 32:
    {
      unsigned char* d = img.GetData();
      unsigned char* p = pbits;
      for (int y = 0; y < nHeight; y++)
      {
        for (int x = 0; x < nWidth; x++)
        {
          *(p++) = *(d+2);
          *(p++) = *(d+1);
          *(p++) = *(d+0);
          *(p++) = 0;
          d += 3;
        }
      }
    }
    break;
  default:
    break;
  }

  HBITMAP hBitmap = ::CreateCompatibleBitmap(hDC, nWidth, nHeight);
  if (hBitmap)
  {
    HDC memdc = ::CreateCompatibleDC( hDC );
    HBITMAP hOldBitmap = (HBITMAP)::SelectObject( memdc, hBitmap);

    HPALETTE hOldPalette = NULL;
    if (nDepth == 8)
    {
      hOldPalette = ::SelectPalette(memdc, (HPALETTE)pal.GetHPALETTE(), FALSE);
      ::RealizePalette(memdc);
    }
    ::StretchDIBits( memdc, 0, 0, nWidth, nHeight, 0, 0, nWidth, nHeight, pbits, bi, DIB_RGB_COLORS, SRCCOPY);
  
    if (hOldBitmap)
      ::SelectObject(memdc, hOldBitmap);
    if (hOldPalette)
      ::SelectPalette(memdc, hOldPalette, FALSE);
    ::DeleteDC(memdc);

  }

  free(pbits);
  free(bi);

  return hBitmap;
}

bool OsWin32_DrawBitmap(HBITMAP hBMP, wxDC& dc, const wxRect& dst, const wxRect& src)
{
  static wxPalette pal;
  
  bool ok = hBMP != NULL;

  if (ok)
  {
    HDC hDC = (HDC)dc.GetHDC();
	  const int nTechno = ::GetDeviceCaps(hDC, TECHNOLOGY);

    HDC hMemDC = NULL;
    if (OsWin32_IsWindowsServer())
      hMemDC = ::CreateCompatibleDC(hDC);   // Per Terminal Server devo fare cosi'
    else
      hMemDC = ::CreateCompatibleDC(NULL);  // Per gli altri sistemi devo fare cosa'
    
    BITMAP bmp; ::GetObject(hBMP, sizeof(bmp), &bmp);
	
    if (nTechno == DT_RASPRINTER) // Sto stampando!
	  {
      const size_t bi_size = sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD);
      BITMAPINFO* bi = (BITMAPINFO*)calloc(bi_size, 1); // Alloca ed azzera
      BITMAPINFOHEADER& bih = bi->bmiHeader;
	    bih.biSize = sizeof(bih);
	    GetDIBits(hMemDC, hBMP, 0, bmp.bmHeight, NULL, bi, DIB_RGB_COLORS);
      ok = bih.biSizeImage > 0;
	    if (ok)
	    {
  	    LPBYTE bits = new BYTE[bih.biSizeImage];
		    ::GetDIBits(hMemDC, hBMP, 0, src.height, bits, bi, DIB_RGB_COLORS);
		    ::StretchDIBits(hDC, dst.x, dst.y, dst.width, dst.height, src.x, src.y, src.width, src.height, 
										    bits, bi, DIB_RGB_COLORS, SRCCOPY);
		    delete bits;
	    }
      free(bi);
	  }
	  else
	  {
		  HGDIOBJ hOldBitmap = ::SelectObject(hMemDC, hBMP);
      ::SetStretchBltMode(hDC, HALFTONE);
      ::StretchBlt(hDC, dst.x, dst.y, dst.width, dst.height, 
                   hMemDC, src.x, src.y, src.width, src.height, SRCCOPY);
		  ::SelectObject(hMemDC, hOldBitmap);
	  }

    ::DeleteDC(hMemDC);
  }
  return ok;
}

void OsWin32_DrawDottedRect(WXHDC hDC, int left, int top, int right, int bottom)
{
  LOGBRUSH lBrush; 
  lBrush.lbHatch = 0; lBrush.lbStyle = BS_SOLID;
  lBrush.lbColor = ::GetTextColor((HDC)hDC); 
  HPEN hPen = ::ExtCreatePen(PS_COSMETIC|PS_ALTERNATE, 1, &lBrush, 0, NULL);
  HGDIOBJ hOldPen = ::SelectObject((HDC)hDC, hPen);
  HGDIOBJ hBrush = ::GetStockObject(HOLLOW_BRUSH);
  HGDIOBJ hOldBrush = ::SelectObject((HDC)hDC, hBrush);
  ::Rectangle((HDC)hDC, left, top, right, bottom);
  ::SelectObject((HDC)hDC, hOldBrush);
  ::SelectObject((HDC)hDC, hOldPen);
  ::DeleteObject(hPen);
}

void OsWin32_Beep(int severity)
{
  switch (severity)
  {
  case  1: ::MessageBeep(MB_ICONEXCLAMATION); break;
  case  2: ::MessageBeep(MB_ICONSTOP); break;
  default: ::MessageBeep(MB_OK); break;
  }
}

static wxString GetHelpDir()
{
  return "htmlhelp/";
}

static wxString FindHelpFile(const char* topic)
{
  wxString strTopic = topic;

  wxString strApp;
  wxFileName::SplitPath(wxTheApp->argv[0], NULL, &strApp, NULL);

  if (strTopic.IsEmpty())
  {
    strTopic = strApp;
    strTopic += "100a";
  }

  wxString str;
  for (int i = 0; i < 2; i++)
  {
    str = GetHelpDir();
    str += i == 0 ? strTopic.Left(2) : strApp.Left(2);
    str += "/";
    str += strTopic;
    str += ".html";
    if (wxFileExists(str))
      break;
  }
  return str;
}

int OsWin32_Help(WXHWND handle, const char* hlp, unsigned int cmd, const char* topic)
{
	HWND hwnd = (HWND)handle;

  wxString str;
	switch(cmd)
	{                     
	case M_HELP_ONCONTEXT:
    str = FindHelpFile(topic);
		break;
	default:
    str = GetHelpDir();
    str += "index.html";
		break;
	}
  if (!str.IsEmpty() && wxFileExists(str))
  {
		::ShellExecute(hwnd, "open", str, NULL, NULL, SW_SHOWDEFAULT); 
  	return true;
  }
  OsWin32_Beep(1);
	return false;
}

///////////////////////////////////////////////////////////
// Execute in window support
///////////////////////////////////////////////////////////

struct TFindWindowInfo
{ 
  HINSTANCE _instance;
  wxString _file;
  HWND _hwnd;
  
  TFindWindowInfo() : _instance(NULL), _hwnd(NULL) { }
};

static BOOL CALLBACK EnumWindowsProc(HWND hwnd, LPARAM lParam)
{
  TFindWindowInfo* w = (TFindWindowInfo*)lParam;

  if (w->_instance != NULL)
  {
    HINSTANCE inst = (HINSTANCE)::GetWindowLong(hwnd, GWL_HINSTANCE);
    if (inst == w->_instance)
    {         
      // Cerco di capire se e' la finetra principale dal fatto che
      // abbia la caption ed i bottoni di chiusura
      const DWORD dwWanted = WS_CAPTION | WS_SYSMENU;
      const DWORD style = ::GetWindowLong(hwnd, GWL_STYLE);
      if ((style & dwWanted) == dwWanted)  
      {
        w->_hwnd = hwnd;
        return FALSE;
      }
      return TRUE;  
    }  
  }

  if (!w->_file.IsEmpty())
  {
    char str[_MAX_PATH];
    if (::GetWindowText(hwnd, str, sizeof(str)))
    {
      wxString title = str;
      title.MakeUpper();
      if (title.Find(w->_file) >= 0)
      {
        w->_hwnd = hwnd;
        return FALSE;
      }
    }
  }

  return TRUE;
}

void OsWin32_PlaceProcessInWindow(unsigned int instance, const char* name, unsigned int parent)
{
  TFindWindowInfo w;
  w._instance = (HINSTANCE)instance;
  w._file = name;
  w._file.MakeUpper();

  for (int i = 0; w._hwnd == NULL && i < 20; i++)
  { 
    ::wxMilliSleep(500);
    ::EnumWindows(EnumWindowsProc, LPARAM(&w));
  }  

  if (w._hwnd != NULL)  // L'ho trovata!
  {                                                          
    RECT rct; ::GetClientRect((HWND)parent, &rct);
    ::SetParent(w._hwnd, (HWND)parent);
    const int fx = ::GetSystemMetrics(SM_CXFRAME);
    const int fy = ::GetSystemMetrics(SM_CYFRAME);
    int cy = ::GetSystemMetrics(SM_CYCAPTION)+GetSystemMetrics(SM_CYBORDER);
    if (::GetMenu(w._hwnd) != NULL) 
      cy += ::GetSystemMetrics(SM_CYMENU);
    ::SetWindowPos(w._hwnd, (HWND)parent, -fx, -fy-cy, rct.right+2*fx, rct.bottom+cy+2*fy, SWP_NOZORDER);
  }
}

static BOOL CALLBACK EnumCampoChildrenProc(HWND hwnd, LPARAM lParam)
{
  char str[_MAX_PATH];
  if (::GetWindowText(hwnd, str, sizeof(str)))
  {
    TFindWindowInfo* w = (TFindWindowInfo*)lParam;
    if (w->_file == str)
    {
      w->_hwnd = hwnd;
      return FALSE;
    }
  }
  return TRUE;
}

static BOOL CALLBACK EnumCampoWindowsProc(HWND hwnd, LPARAM lParam)
{
  char str[_MAX_PATH];
  if (::GetWindowText(hwnd, str, sizeof(str)))
  {
    const wxString title = str;
    if (title.StartsWith("Base - "))
    {
      ::EnumChildWindows(hwnd, EnumCampoChildrenProc, lParam);
      TFindWindowInfo* w = (TFindWindowInfo*)lParam;
      if (w->_hwnd != NULL)
        return FALSE;
    }
  }
  return TRUE;
}


unsigned int OsWin32_FindMenuContainer()
{
  TFindWindowInfo w;
  w._file = "__CAMPO_HOST_WINDOW__";
  ::EnumWindows(EnumCampoWindowsProc, LPARAM(&w));
  return (unsigned int)w._hwnd;
}

static BOOL CALLBACK CountChildrenProc(HWND hwnd, LPARAM lParam)
{
  LONG* n = (LONG*)lParam;
  (*n)++;
  return TRUE;
}

long OsWin32_GetChildrenCount(unsigned int parent)
{
  LONG n = 0;
  ::EnumChildWindows((HWND)parent, CountChildrenProc, (LPARAM)&n);
  return n;
}

static BOOL CALLBACK CloseChildrenProc(HWND hwnd, LPARAM lParam)
{
  ::PostMessage(hwnd, WM_CLOSE, 0, 0);
  return CountChildrenProc(hwnd, lParam);
}

long OsWin32_CloseChildren(unsigned int parent)
{
  LONG n = 0;
  ::EnumChildWindows((HWND)parent, CloseChildrenProc, (LPARAM)&n);
  return n;
}

///////////////////////////////////////////////////////////
// Hardlock Support
///////////////////////////////////////////////////////////

#include "hlapi_c.h"

bool OsWin32_HL_Login(unsigned short address, const unsigned char* label, const unsigned char* password)
{
  int err = HL_LOGIN(address, LOCAL_DEVICE, (unsigned char*)label, (unsigned char*)password);
  return err == STATUS_OK;
}

bool OsWin32_HL_Logout() 
{
  HL_LOGOUT();
  return TRUE;
}

bool OsWin32_HL_Read(unsigned short reg, unsigned short* data) 
{
  int err = HL_READ(reg, data);
  return err == STATUS_OK;
}

bool OsWin32_HL_ReadBlock(unsigned char* data) 
{
  int err = HL_READBL(data);
  return err == STATUS_OK;
}

bool OsWin32_HL_Write(unsigned short reg, unsigned short data) 
{
  int err = HL_WRITE(reg, data);
  return err == STATUS_OK;
}

bool OsWin32_HL_Crypt(unsigned short* data) // Array di 4 words (8 bytes)
{
  int err = HL_CODE(data, 1);
  return err == STATUS_OK;
}

///////////////////////////////////////////////////////////
// Eutron Smartlink Support
///////////////////////////////////////////////////////////

#include "skeylink.h"

static KEY_NET _eutron_key;

bool OsWin32_SL_Crypt(unsigned short* data)
{
  _eutron_key.net_command = NET_KEY_ACCESS;
  _eutron_key.command = SCRAMBLING_MODE;
  memcpy(_eutron_key.data, data, 8);
  smartlink(&_eutron_key);
  if (_eutron_key.status == ST_OK)
    memcpy(data, _eutron_key.data, 8);
  return _eutron_key.status == ST_OK;
}

bool OsWin32_SL_Login(const unsigned char* label, const unsigned char* password)
{
  memset(&_eutron_key, 0, sizeof(KEY_NET));
  _eutron_key.net_command = NET_KEY_OPEN;
	_eutron_key.status = ST_HW_FAILURE; // Don't leave ST_OK = 0 here!
  memcpy(_eutron_key.label, label, strlen((const char*)label));  
  memcpy(_eutron_key.password, password, strlen((const char*)password));  

  smartlink(&_eutron_key);
  return _eutron_key.status == ST_OK;
}

bool OsWin32_SL_Logout()
{
  _eutron_key.net_command = NET_KEY_CLOSE;
  _eutron_key.command = 0;
  smartlink(&_eutron_key);
  return true;
}

bool OsWin32_SL_ReadBlock(unsigned short reg, unsigned short size, unsigned short* data)
{
  _eutron_key.net_command = NET_KEY_ACCESS;
  _eutron_key.command = BLOCK_READING_MODE;
  unsigned short* pointer = (unsigned short*)(&_eutron_key.data[0]);
  unsigned short* number  = (unsigned short*)(&_eutron_key.data[2]);
  *pointer = reg;
  *number = size;
  smartlink(&_eutron_key);
  bool ok = _eutron_key.status == ST_OK;
  if (ok)
    memcpy(data, &_eutron_key.data[4], size*sizeof(unsigned short));
  return ok;
}

bool OsWin32_SL_WriteBlock(unsigned short reg, unsigned short size, const unsigned short* data)
{
  _eutron_key.net_command = NET_KEY_ACCESS;
  _eutron_key.command = BLOCK_WRITING_MODE;
  unsigned short* pointer = (unsigned short*)(&_eutron_key.data[0]);
  unsigned short* number  = (unsigned short*)(&_eutron_key.data[2]);
  *pointer = reg;
  *number = size;
  memcpy(&_eutron_key.data[4], data, size*sizeof(unsigned short));
  smartlink(&_eutron_key);
  return _eutron_key.status == ST_OK;
}

///////////////////////////////////////////////////////////
// Ex-Golem utilities
///////////////////////////////////////////////////////////

static long GetRegistryString(HKEY key, const char* subkey, wxString& retstr)
{                                            
  HKEY hkey;
  long retval = ::RegOpenKey(key, subkey, &hkey);
  if (retval == ERROR_SUCCESS)
  {
    char retdata[_MAX_PATH];
    long datasize = sizeof(retdata);
    ::RegQueryValue(hkey, NULL, retdata, &datasize);
    ::RegCloseKey(hkey);
    retstr = retdata;
  }
  return retval;
}

wxString OsWin32_File2App(const char* filename)
{                               
  wxString app;

  if (*filename != '.')
  {
    char retdata[_MAX_PATH];
    HINSTANCE hinst = ::FindExecutable(filename, ".", retdata);
    DWORD* pinst = (DWORD*)hinst;
    UINT err = LOWORD(pinst);
    if (err > 32)
      app = retdata;
  }
    
  if (app.IsEmpty())
  {                         
    wxString ext;
    if (*filename == '.')
      ext = filename;
    else  
      wxSplitPath(filename, NULL, NULL, &ext);
    ext.MakeLower();  

    wxString key;
    if (GetRegistryString(HKEY_CLASSES_ROOT, ext, key) == ERROR_SUCCESS)
    {
      key << "\\shell\\open\\command";
      if (GetRegistryString(HKEY_CLASSES_ROOT, key, key) == ERROR_SUCCESS)
      {
        key.Replace("\"", " ");
        int pos = key.Find("%1");
        if (pos > 0)
          key.Truncate(pos);
        key.Trim(false); key.Trim(true);
        app = key;  
      }
    }      
  }  
  
  return app;
}

static bool IsInternetAddress(const char* filename)
{           
  wxString url(filename); url.MakeLower();
  if (url.StartsWith("http:") || url.StartsWith("ftp:"))
    return true;
  if (url.Find("www.") >= 0)
    return true;                                
  
  wxString ext; wxFileName::SplitPath(url, NULL, NULL, NULL, &ext);
  const char* const extensions[] = { "com","edu","gov","it","mil","net","org", NULL };
  for (int e = 0; extensions[e]; e++)
    if (ext == extensions[e])
      return true;
  
  return false;
}

unsigned int OsWin32_LoadIcon(const char* filename)
{
  unsigned int icon = 0;
  int icon_number = 0;

  wxString ext;
  if (*filename == '.' && strlen(filename) < _MAX_EXT)
    ext = filename;
  else                   
  {         
    if (IsInternetAddress(filename))
      ext = ".htm";  
    else
      wxFileName::SplitPath(filename, NULL, NULL, NULL, &ext);
  }  
  ext.MakeLower();

  wxString key;
  if (ext != ".exe")
  {              
    if (::GetRegistryString(HKEY_CLASSES_ROOT, ext, key) == ERROR_SUCCESS)
    {                     
      key << "\\DefaultIcon";                                     
      if (::GetRegistryString(HKEY_CLASSES_ROOT, key, key) == ERROR_SUCCESS)  // Windows 95 only
      {
        const int comma = key.find(',');
        if (comma > 0)
        {
          icon_number = atoi(key.Mid(comma+1));
          key.Truncate(comma);
        }
      }
      else
      {
        key = OsWin32_File2App(filename);
        if (key.IsEmpty())
          key = OsWin32_File2App(".htm");
      }  
    }
  }  
  else
    key = filename;
  
  // Toglie eventuali parametri sulla riga si comando
  const int ext_pos = key.Find(".exe");
  if (ext_pos > 0) 
    key.Truncate(ext_pos+4);
    
  HINSTANCE hInst = NULL;
  HICON hicon = ::ExtractIcon(hInst, key, icon_number);
  if (hicon == NULL && icon_number != 0) 
    hicon = ::ExtractIcon(hInst, key, 0);
  if (hicon != NULL)
  {
    DWORD dwicon = DWORD((DWORD*)hicon);
    icon = LOWORD(dwicon);
  }  
  
  return icon;  
}

// action = [ open, edit, print ];
bool OsWin32_GotoUrl(const char* url, const char* action)
{
  bool ok = false;

  // Sarebbe meglio un flag esplicito, ma per ora attendiamo solo le stampe
  if (action && strcmp(action, "print") == 0)
  {
    SHELLEXECUTEINFO sei; memset(&sei, 0, sizeof(sei));
    sei.cbSize = sizeof(sei);
    sei.fMask = SEE_MASK_NOCLOSEPROCESS | SEE_MASK_FLAG_DDEWAIT;
    sei.lpVerb = action;
    sei.lpFile = url;
    sei.nShow = SW_SHOWNORMAL;
    if (::ShellExecuteEx(&sei))
    {
      if (sei.hProcess != NULL)
      {
        ::WaitForSingleObject(sei.hProcess, 0);
        ::CloseHandle(sei.hProcess);
      }
      ok = true;
    }
  }
  else
  {
    HINSTANCE hinst = ::ShellExecute(NULL, action, url, NULL, NULL, SW_SHOWNORMAL);
    DWORD winst = DWORD((DWORD*)hinst); // Tutto 'sto giro per evitare un warning
    ok = UINT(winst) > 32; 
  }
  return ok;
}

void OsWin32_SpoolNewLine(unsigned int hdc)
{
  char output[4];
  output[0] = 1;    // Lunghezza: byte basso
  output[1] = 0;    // Lunghezza: byte alto
  output[2] = '\n'; // A capo
  output[3] = 0;    // Shwarzenegger
  ::Escape((HDC)hdc, PASSTHROUGH, 0, output, NULL );
}

bool OsWin32_IsGenericTextOnly(void* data)
{
  LPDEVMODE pdm = (LPDEVMODE)data;

  if (pdm->dmYResolution == 6) // Win 9x only
    return true; 

  if (strstr((const char*)pdm->dmDeviceName, "eneric") != NULL)
    return true;

  return false;
}
 

#ifdef SPEECH_API

#include "\Programmi\Microsoft Speech SDK 5.1\Include\sapi.h"

static ISpVoice* m_pVoice = NULL;

bool OsWin32_InitializeSpeech()
{
  if (m_pVoice == NULL)
    CoCreateInstance(CLSID_SpVoice, NULL, CLSCTX_ALL, IID_ISpVoice, (void **)&m_pVoice);
  return m_pVoice != NULL;
}

void OsWin32_DeinitializeSpeech()
{
  if (m_pVoice != NULL)
  {
    m_pVoice->WaitUntilDone(1000);
    m_pVoice->Release();
    m_pVoice = NULL;
  }
}

bool OsWin32_Speak(const char* text, bool async)
{
  if (m_pVoice != NULL)
  {
    WCHAR str[1204];
    MultiByteToWideChar(CP_ACP, 0, text, -1, str, strlen(text)+1);
    if (async)
      m_pVoice->Speak(str, SPF_ASYNC | SPF_PURGEBEFORESPEAK, NULL);
    else
      m_pVoice->Speak(str, SPF_PURGEBEFORESPEAK, NULL);
    return true;
  }
  return false;
}

#endif

typedef BOOL (PASCAL *pfnProcessIdToSessionId)(DWORD dwProcessId,DWORD* pSessionId);

int OsWin32_GetSessionId()
{
  DWORD session = 0;

#if _MSC_VER >= 1300
  //modifiche del 1/2/08 per poter gestire le licenze con win2000/2003/2008 server edition
  ::ProcessIdToSessionId(GetCurrentProcessId(), &session);
#else
  //modifiche del 5/4/04 per poter gestire le licenze con win2000/2003 server edition
  HMODULE kernel = GetModuleHandle("kernel32.dll");
  if (kernel != NULL)
  {
    pfnProcessIdToSessionId fn = (pfnProcessIdToSessionId)GetProcAddress(kernel, "ProcessIdToSessionId");
    if (fn != NULL)
      fn(GetCurrentProcessId(), &session);
  }
#endif
  return (int)session;
}

//definito il valore della variabile intera SM_REMOTESESSION 
// che non esiste per WINVER < 0x500
#ifndef SM_REMOTESESSION
#define SM_REMOTESESSION 0x1000
#endif

bool OsWin32_IsWindowsServer()
{
  return ::GetSystemMetrics(SM_REMOTESESSION) != 0;
}

void OsWin32_NumberFormat(char* str, int size)
{
  char buf[80];
  ::GetNumberFormat(LOCALE_USER_DEFAULT, 0, str, NULL, buf, sizeof(buf));
  wxStrncpy(str, buf, size);
}