Pipette and "On Preview Widgets" branch. See issue 227

The pipette part is already working quite nice but need to be finished. The widgets part needs more work...

rtgui/multilangmgr.cc

@@ -0,0 +1,188 @@
+/*
+ *  This file is part of RawTherapee.
+ *
+ *  Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
+ *
+ *  RawTherapee is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ * 
+ *  RawTherapee is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with RawTherapee.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <glib/gstdio.h>
+#include "multilangmgr.h"
+#include <cstring>
+#include "../rtengine/safegtk.h"
+#ifdef WIN32
+// Desired auto detect function is Vista+
+#define _WIN32_WINNT 0x0600
+#include <windows.h>
+#include <winnls.h>
+#undef _WIN32_WINNT
+#endif
+
+MultiLangMgr langMgr;
+
+Glib::ustring M (std::string key) { return langMgr.getStr (key); }
+
+// fb is fallback manager if the first could not be loaded
+bool MultiLangMgr::load (Glib::ustring fname, MultiLangMgr* fb) {
+    FILE *f = safe_g_fopen (fname, "rt");
+
+    fallBack = fb;
+
+    if (f==NULL)
+        return false;
+   
+    transTable.clear ();
+
+    char* buffer = new char[2048];
+    
+    while (fgets (buffer, 2048, f) != 0) {
+        // find separator
+        int seppos = 0;
+        while (buffer[seppos]!=0 && buffer[seppos]!=';')
+            seppos++;
+        // no separator found
+        if (buffer[seppos]==0) 
+            continue;
+        // cut the last \n and \r characters
+        int endpos = strlen(buffer)-1;
+        while (buffer[endpos]=='\n' || buffer[endpos]=='\r')
+            endpos--;
+        buffer[endpos+1] = 0;
+        // replace "\n" to '\n'
+        int j = 0;
+        for (int i=0; i<endpos+1; i++) 
+            if (i<endpos && buffer[i]=='\\' && buffer[i+1]=='n') {
+                buffer[j++] = '\n';
+                i++;
+            }
+            else
+                buffer[j++] = buffer[i];
+        buffer[j] = 0;
+        // cut to two parts
+        buffer[seppos] = 0;
+        transTable[buffer] = buffer + seppos + 1;
+    }
+    
+    fclose (f);
+    delete [] buffer;
+    return true;
+}
+
+bool MultiLangMgr::save (Glib::ustring fname) {
+
+    FILE *f = safe_g_fopen (fname, "wt");
+    
+    if (f==NULL)
+        return false;
+
+    std::map<std::string, Glib::ustring>::iterator r;
+    for (r=transTable.begin (); r!=transTable.end(); r++)
+        fprintf (f, "%s;%s\n", r->first.c_str(), safe_locale_from_utf8(r->second).c_str());
+
+    fclose (f);
+    return true;
+}
+        
+
+bool MultiLangMgr::isOSLanguageDetectSupported() {
+#ifdef WIN32
+    #ifdef __MINGW64_VERSION_MAJOR
+    // Only on Vista or above
+    return LOBYTE(LOWORD(GetVersion()))>=6;
+#else
+    return false;
+#endif
+#elif defined(__linux__) || defined(__APPLE__)
+    return true;
+#else
+    return false;
+#endif
+}
+
+
+// returns Language name mapped from the currently selected OS language
+Glib::ustring MultiLangMgr::getOSUserLanguage() {
+    Glib::ustring langName = Glib::ustring("default");
+
+    if (isOSLanguageDetectSupported()) {
+
+#ifdef WIN32
+// When using old versions of MINGW this is not defined
+#ifdef __MINGW64_VERSION_MAJOR
+        WCHAR langRFCU[64] = {0};
+        if (GetUserDefaultLocaleName(langRFCU,64)!=0 && lstrlenW(langRFCU)>=2) {
+            // convert UNICODE16 to GTK
+            char langRFC[64];
+            WideCharToMultiByte(CP_UTF8,0,langRFCU,-1,langRFC,64,0,0);
+            Glib::ustring localRFC=Glib::ustring(langRFC);
+
+            langName=TranslateRFC2Language(localRFC);
+        }
+#endif
+#elif defined(__linux__) || defined(__APPLE__)
+    langName = TranslateRFC2Language(std::setlocale(LC_CTYPE,""));
+#endif
+    }
+
+    return langName;
+}
+
+// Translates RFC standard language code to file name, e.g. "de-DE" to "Deutsch"
+Glib::ustring MultiLangMgr::TranslateRFC2Language(Glib::ustring rfcName) {
+    if (rfcName.length()<2) return Glib::ustring("default");
+
+    Glib::ustring major=rfcName.substr(0,2).lowercase();
+    Glib::ustring minor;
+    if (rfcName.length()>=5) {
+        minor=rfcName.substr(3,2).uppercase();
+    }
+
+    //printf("Lang: %s - %s\n",major.c_str(),minor.c_str());
+
+    if (major=="cs") return "Czech";
+    if (major=="ca") return "Catala";
+    if (major=="fr") return "Francais";
+    if (major=="de") return "Deutsch";
+    if (major=="sr") return "Serbian (Cyrilic Characters)";
+    if (major=="zh")
+        return (minor=="CN" || minor=="SG") ? "Chinese (Simplified)" : "Chinese (Traditional)";
+    if (major=="da") return "Dansk";
+    if (major=="es") return "Espanol";
+    if (major=="el") return "Greek";
+    if (major=="he") return "Hebrew";
+    if (major=="it") return "Italian";
+    if (major=="ja") return "Japanese";
+    if (major=="nl") return "Nederlands";
+    if (major=="nn" || major=="nb") return "Norsk BM";
+    if (major=="pl") return "Polish";
+    if (major=="pt") return "Portugues (Brasil)";
+    if (major=="ru") return "Russian";
+    if (major=="sk") return "Slovak";
+    if (major=="fi") return "Suomi";
+    if (major=="se") return "Swedish";
+    if (major=="tr") return "Turkish";
+
+    // Don't split en-US, en-GB, etc. since only default english is constantly updated
+    return "default";
+}
+
+Glib::ustring MultiLangMgr::getStr (std::string key) {
+
+    std::map<std::string, Glib::ustring>::iterator r = transTable.find (key);
+    if (r!=transTable.end()) 
+        return r->second;
+    else if (fallBack)
+        return fallBack->getStr (key);
+    else
+        return key;
+}