RetroZilla/modules/plugin/samples/default/os2/utils.cpp

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2015-10-21 05:03:22 +02:00
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla 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/MPL/
*
* 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 the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#define INCL_GPI
#define INCL_WIN
#include <os2.h>
#include <string.h>
#include "plugin.h"
// return TRUE if we've never seen this MIME type before
BOOL IsNewMimeType(PSZ mime)
{
ULONG keysize = 512;
char keybuf[512];
PrfQueryProfileString(HINI_USERPROFILE, OS2INI_PLACE, mime, "", keybuf, keysize);
if (keybuf[0] != '\0') {
return FALSE;
}
else
{
if (!(PrfWriteProfileString(HINI_USERPROFILE, OS2INI_PLACE, mime, "(none)")))
WinMessageBox(HWND_DESKTOP, HWND_DESKTOP, "Error adding MIME type value", "Default Plugin", 0, MB_OK);
return TRUE;
}
}
// 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 || !*szText)
{
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;
}