Check the image height when calulating the line height. This allows

[wxWidgets.git] / src / generic / helpext.cpp

diff --git a/src/generic/helpext.cpp b/src/generic/helpext.cpp
index 43b56b8b3529fd0fe21d7661c622ddd2dd9a5ff3..f6e3add7b5afc49dd8035357537d100ac733858e 100644 (file)
--- a/src/generic/helpext.cpp
+++ b/src/generic/helpext.cpp
@@ -1,27 +1,56 @@
-/*-*- c++ -*-********************************************************
- * helpext.cpp - an external help controller for wxWindows          *
- *                                                                  *
- * (C) 1999 by Karsten Ballüder (Ballueder@usa.net)                 *
- *                                                                  *
- * $Id$
- *******************************************************************/
+/////////////////////////////////////////////////////////////////////////////
+// Name:        helpext.cpp
+// Purpose:     an external help controller for wxWindows
+// Author:      Karsten Ballueder
+// Modified by:
+// Created:     04/01/98
+// RCS-ID:      $Id$
+// Copyright:   (c) Karsten Ballueder
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
 #ifdef __GNUG__
 #   pragma implementation "wxexthlp.h"
 #endif
 
-#include   "wx/setup.h"
-#include   "wx/helpbase.h"
-#include   "wx/generic/helpext.h"
-#include   "wx/string.h"
-#include   "wx/utils.h"
-#include   "wx/list.h"
-#include   <stdio.h>
-#include   <ctype.h>
-#include   <sys/stat.h>
-#include   <unistd.h>
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+#if wxUSE_HELP
+
+#ifndef WX_PRECOMP
+    #include "wx/setup.h"
+    #include "wx/string.h"
+    #include "wx/utils.h"
+    #include "wx/list.h"
+    #include "wx/intl.h"
+#endif
+
+#include "wx/helpbase.h"
+#include "wx/generic/helpext.h"
+
+#include <stdio.h>
+#include <ctype.h>
+#include <sys/stat.h>
+
+#if !defined(__WINDOWS__) && !defined(__OS2__)
+    #include   <unistd.h>
+#endif
+
+#ifdef __WXMSW__
+#include <windows.h>
+#endif
 
 IMPLEMENT_CLASS(wxExtHelpController, wxHTMLHelpControllerBase)
-   
+
+/// Name of environment variable to set help browser.
+#define   WXEXTHELP_ENVVAR_BROWSER   wxT("WX_HELPBROWSER")
+/// Is browser a netscape browser?
+#define   WXEXTHELP_ENVVAR_BROWSERISNETSCAPE wxT("WX_HELPBROWSER_NS")
+
 /**
    This class implements help via an external browser.
    It requires the name of a directory containing the documentation
@@ -33,18 +62,17 @@ wxExtHelpController::wxExtHelpController(void)
    m_BrowserName = WXEXTHELP_DEFAULTBROWSER;
    m_BrowserIsNetscape = WXEXTHELP_DEFAULTBROWSER_IS_NETSCAPE;
 
-   char *browser = getenv(WXEXTHELP_ENVVAR_BROWSER);
+   wxChar *browser = wxGetenv(WXEXTHELP_ENVVAR_BROWSER);
    if(browser)
    {
       m_BrowserName = browser;
-      browser = getenv(WXEXTHELP_ENVVAR_BROWSERISNETSCAPE);
-      m_BrowserIsNetscape = browser && (atoi(browser) != 0);
+      browser = wxGetenv(WXEXTHELP_ENVVAR_BROWSERISNETSCAPE);
+      m_BrowserIsNetscape = browser && (wxAtoi(browser) != 0);
    }
 }
 
 
-void
-wxExtHelpController::SetBrowser(wxString const & browsername, bool isNetscape)
+void wxExtHelpController::SetBrowser(wxString const & browsername, bool isNetscape)
 {
    m_BrowserName = browsername;
    m_BrowserIsNetscape = isNetscape;
@@ -57,34 +85,83 @@ void wxExtHelpController::SetViewer(const wxString& viewer, long flags)
 }
 
 bool
-wxExtHelpController::DisplayHelp(wxString const &relativeURL)
+wxExtHelpController::DisplayHelp(const wxString &relativeURL)
 {
    wxBusyCursor b; // display a busy cursor
+
+
+#if defined(__WXMSW__)
+   wxString url;
+   url << m_MapFile << '\\' << relativeURL.BeforeFirst('#');
+   bool bOk = (int)ShellExecute(NULL, wxT("open"), url.c_str(),
+                                NULL, NULL, SW_SHOWNORMAL ) > 32;
+   if ( !bOk )
+   {
+      wxLogSysError(_("Cannot open URL '%s'"), relativeURL.c_str());
+      return false;
+   }
+   else
+      return true;
+
+#elif  defined(__WXPM__)
+
+   wxString url;
+   url << m_MapFile << '\\' << relativeURL.BeforeFirst('#');
+//   will have to fix for OS/2, later.....DW
+//   bool bOk = (int)ShellExecute(NULL, "open", url,
+//                                NULL, NULL, SW_SHOWNORMAL ) > 32;
+//   if ( !bOk )
+//   {
+//      wxLogSysError(_("Cannot open URL '%s'"), relativeURL.c_str());
+//      return false;
+//   }
+//   else
+      return TRUE;
+
+#elif defined(__DOS__)
+
+   wxString command;
+   command = m_BrowserName;
+   command << wxT(" file://")
+           << m_MapFile << WXEXTHELP_SEPARATOR << relativeURL;
+   return wxExecute(command) != 0;
+
+#else // UNIX
    wxString command;
 
+#ifndef __EMX__
    if(m_BrowserIsNetscape) // try re-loading first
    {
       wxString lockfile;
       wxGetHomeDir(&lockfile);
-      lockfile << WXEXTHELP_SEPARATOR << _T(".netscape/lock");
+#ifdef __VMS__
+      lockfile << WXEXTHELP_SEPARATOR << wxT(".netscape]lock.");
+      struct stat statbuf;
+      if(stat(lockfile.fn_str(), &statbuf) == 0)
+#else
+      lockfile << WXEXTHELP_SEPARATOR << wxT(".netscape/lock");
       struct stat statbuf;
       if(lstat(lockfile.fn_str(), &statbuf) == 0)
       // cannot use wxFileExists, because it's a link pointing to a
       // non-existing location      if(wxFileExists(lockfile))
+#endif
       {
          long success;
-         command << m_BrowserName << _T(" -remote openURL(")
-                 << _T("file://") << m_MapFile
-                 << WXEXTHELP_SEPARATOR << relativeURL << _T(")"); 
+         command << m_BrowserName << wxT(" -remote openURL(")
+                 << wxT("file://") << m_MapFile
+                 << WXEXTHELP_SEPARATOR << relativeURL << wxT(")");
          success = wxExecute(command);
          if(success != 0 ) // returns PID on success
             return TRUE;
       }
    }
+#endif
    command = m_BrowserName;
-   command << _T(" file://")
-           << m_MapFile << WXEXTHELP_SEPARATOR << relativeURL; 
-   return wxExecute(command) != 0; 
+   command << wxT(" file://")
+           << m_MapFile << WXEXTHELP_SEPARATOR << relativeURL;
+   return wxExecute(command) != 0;
+#endif
 }
 
+#endif // wxUSE_HELP