Files
tubestation/modules/plugin/samples/default/os2/utils.cpp
mkaply@us.ibm.com a25158b839 OS/2 only
r=mkaply, a=blizzard
Default (npnul) plugin for OS/2
2001-02-14 00:17:52 +00:00

158 lines
4.2 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Mozilla Communicator client code.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
* IBM Corp.
*/
#define INCL_GPI
#include <os2.h>
#include <string.h>
#include "plugin.h"
#ifdef OLDCODE
// open the registry, create if necessary
HKEY openRegistry()
{
HKEY phkResult;
if(RegCreateKey(HKEY_CURRENT_USER, REGISTRY_PLACE, &phkResult) != ERROR_SUCCESS)
MessageBox(0, "Error creating Default Plugin registry key", "Default Plugin", MB_OK);
return phkResult;
}
// return TRUE if we've never seen this MIME type before
BOOL IsNewMimeType(PSZ mime)
{
HKEY hkey = openRegistry();
DWORD dwType, keysize = 512;
char keybuf[512];
if(RegQueryValueEx(hkey, mime, 0, &dwType, (LPBYTE) &keybuf, &keysize) == ERROR_SUCCESS)
{
// key exists, must have already been here...
return FALSE;
}
else
{
if(RegSetValueEx(hkey, mime, 0, REG_SZ, (LPBYTE) "(none)", 7) != ERROR_SUCCESS)
MessageBox(0, "Error adding MIME type value", "Default Plugin", MB_OK);
return TRUE;
}
}
#endif
// string length in pixels for the specific window (selected font)
static int getWindowStringLength(HWND hWnd, PSZ lpsz)
{
HPS hPS = WinGetPS(hWnd);
POINTL ptls[5];
GpiQueryTextBox(hPS, strlen(lpsz), lpsz, 5, ptls);
POINTL pt;
pt.x = ptls[TXTBOX_CONCAT].x;
pt.y = ptls[TXTBOX_TOPLEFT].y - ptls[TXTBOX_BOTTOMLEFT].y;
WinReleasePS(hPS);
return (int)pt.x;
}
/****************************************************************/
/* */
/* void SetDlgItemTextWrapped(HWND hWnd, int iID, PSZ szText) */
/* */
/* helper to wrap long lines in a static control, which do not */
/* wrap automatically if they do not have space characters */
/* */
/****************************************************************/
void SetDlgItemTextWrapped(HWND hWnd, int iID, PSZ szText)
{
HWND hWndStatic = WinWindowFromID(hWnd, iID);
if((szText == NULL) || (strlen(szText) == 0))
{
WinSetDlgItemText(hWnd, iID, "");
return;
}
RECTL rc;
WinQueryWindowRect(hWndStatic, &rc);
int iStaticLength = rc.xRight - rc.xLeft;
int iStringLength = getWindowStringLength(hWndStatic, szText);
if(iStringLength <= iStaticLength)
{
WinSetDlgItemText(hWnd, iID, szText);
return;
}
int iBreaks = iStringLength/iStaticLength;
if(iBreaks <= 0)
return;
char * pBuf = new char[iStringLength + iBreaks + 1];
if(pBuf == NULL)
return;
strcpy(pBuf, "");
int iStart = 0;
int iLines = 0;
for(int i = 0; i < iStringLength; i++)
{
char * sz = &szText[iStart];
int iIndex = i - iStart;
char ch = sz[iIndex + 1];
sz[iIndex + 1] = '\0';
int iLength = getWindowStringLength(hWndStatic, sz);
if(iLength < iStaticLength)
{
sz[iIndex + 1] = ch;
if(iLines == iBreaks)
{
strcat(pBuf, sz);
break;
}
continue;
}
sz[iIndex + 1] = ch; // restore zeroed element
i--; // go one step back
ch = sz[iIndex];
sz[iIndex] = '\0'; // terminate string one char shorter
strcat(pBuf, sz); // append the string
strcat(pBuf, " "); // append space character for successful wrapping
iStart += strlen(sz);// shift new start position
sz[iIndex] = ch; // restore zeroed element
iLines++; // count lines
}
WinSetDlgItemText(hWnd, iID, pBuf);
delete [] pBuf;
}