157 lines
4.2 KiB
C++
157 lines
4.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#include <windows.h>
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#include <windowsx.h>
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#include "plugin.h"
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// open the registry, create if necessary
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HKEY openRegistry()
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{
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HKEY phkResult;
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if(RegCreateKey(HKEY_CURRENT_USER, REGISTRY_PLACE, &phkResult) != ERROR_SUCCESS)
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MessageBox(0, "Error creating Default Plugin registry key", "Default Plugin", MB_OK);
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return phkResult;
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}
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// return TRUE if we've never seen this MIME type before
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BOOL IsNewMimeType(LPSTR mime)
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{
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HKEY hkey = openRegistry();
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DWORD dwType, keysize = 512;
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char keybuf[512];
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if(RegQueryValueEx(hkey, mime, 0, &dwType, (LPBYTE) &keybuf, &keysize) == ERROR_SUCCESS)
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{
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// key exists, must have already been here...
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return FALSE;
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}
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else
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{
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if(RegSetValueEx(hkey, mime, 0, REG_SZ, (LPBYTE) "(none)", 7) != ERROR_SUCCESS)
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MessageBox(0, "Error adding MIME type value", "Default Plugin", MB_OK);
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return TRUE;
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}
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}
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// string length in pixels for the specific window (selected font)
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static int getWindowStringLength(HWND hWnd, LPSTR lpsz)
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{
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SIZE sz;
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HDC hDC = GetDC(hWnd);
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HFONT hWindowFont = GetWindowFont(hWnd);
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HFONT hFontOld = SelectFont(hDC, hWindowFont);
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GetTextExtentPoint32(hDC, lpsz, lstrlen(lpsz), &sz);
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POINT pt;
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pt.x = sz.cx;
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pt.y = sz.cy;
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LPtoDP(hDC, &pt, 1);
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SelectFont(hDC, hFontOld);
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ReleaseDC(hWnd, hDC);
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return (int)pt.x;
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}
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/****************************************************************/
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/* */
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/* void SetDlgItemTextWrapped(HWND hWnd, int iID, LPSTR szText) */
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/* */
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/* helper to wrap long lines in a static control, which do not */
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/* wrap automatically if they do not have space characters */
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/* */
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/****************************************************************/
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void SetDlgItemTextWrapped(HWND hWnd, int iID, LPSTR szText)
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{
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HWND hWndStatic = GetDlgItem(hWnd, iID);
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if((szText == NULL) || (lstrlen(szText) == 0))
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{
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SetDlgItemText(hWnd, iID, "");
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return;
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}
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RECT rc;
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GetClientRect(hWndStatic, &rc);
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int iStaticLength = rc.right - rc.left;
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int iStringLength = getWindowStringLength(hWndStatic, szText);
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if(iStringLength <= iStaticLength)
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{
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SetDlgItemText(hWnd, iID, szText);
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return;
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}
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int iBreaks = iStringLength/iStaticLength;
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if(iBreaks <= 0)
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return;
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char * pBuf = new char[iStringLength + iBreaks + 1];
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if(pBuf == NULL)
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return;
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lstrcpy(pBuf, "");
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int iStart = 0;
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int iLines = 0;
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for(int i = 0; i < iStringLength; i++)
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{
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char * sz = &szText[iStart];
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int iIndex = i - iStart;
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char ch = sz[iIndex + 1];
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sz[iIndex + 1] = '\0';
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int iLength = getWindowStringLength(hWndStatic, sz);
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if(iLength < iStaticLength)
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{
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sz[iIndex + 1] = ch;
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if(iLines == iBreaks)
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{
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lstrcat(pBuf, sz);
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break;
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}
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continue;
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}
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sz[iIndex + 1] = ch; // restore zeroed element
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i--; // go one step back
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ch = sz[iIndex];
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sz[iIndex] = '\0'; // terminate string one char shorter
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lstrcat(pBuf, sz); // append the string
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lstrcat(pBuf, " "); // append space character for successful wrapping
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iStart += lstrlen(sz);// shift new start position
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sz[iIndex] = ch; // restore zeroed element
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iLines++; // count lines
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}
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SetDlgItemText(hWnd, iID, pBuf);
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delete [] pBuf;
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}
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