- initial version

git-svn-id: http://moon:8086/svn/software/trunk/projects/RBM@14 b431acfa-c32f-4a4a-93f1-934dc6c82436
2014-09-24 17:21:29 +00:00
commit 470437eecb
1107 changed files with 428404 additions and 0 deletions
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+/*
+  ==============================================================================
+
+   This file is part of the JUCE library.
+   Copyright (c) 2013 - Raw Material Software Ltd.
+
+   Permission is granted to use this software under the terms of either:
+   a) the GPL v2 (or any later version)
+   b) the Affero GPL v3
+
+   Details of these licenses can be found at: www.gnu.org/licenses
+
+   JUCE 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.
+
+   ------------------------------------------------------------------------------
+
+   To release a closed-source product which uses JUCE, commercial licenses are
+   available: visit www.juce.com for more information.
+
+  ==============================================================================
+*/
+
+static bool exeIsAvailable (const char* const executable)
+{
+     ChildProcess child;
+     const bool ok = child.start ("which " + String (executable))
+                       && child.readAllProcessOutput().trim().isNotEmpty();
+
+     child.waitForProcessToFinish (60 * 1000);
+     return ok;
+}
+
+bool FileChooser::isPlatformDialogAvailable()
+{
+   #if JUCE_DISABLE_NATIVE_FILECHOOSERS
+    return false;
+   #else
+    static bool canUseNativeBox = exeIsAvailable ("zenity") || exeIsAvailable ("kdialog");
+    return canUseNativeBox;
+   #endif
+}
+
+static uint64 getTopWindowID() noexcept
+{
+    if (TopLevelWindow* top = TopLevelWindow::getActiveTopLevelWindow())
+        return (uint64) (pointer_sized_uint) top->getWindowHandle();
+
+    return 0;
+}
+
+static bool isKdeFullSession()
+{
+    return SystemStats::getEnvironmentVariable ("KDE_FULL_SESSION", String())
+             .equalsIgnoreCase ("true");
+}
+
+static void addKDialogArgs (StringArray& args, String& separator,
+                            const String& title, const File& file, const String& filters,
+                            bool isDirectory, bool isSave, bool selectMultipleFiles)
+{
+    args.add ("kdialog");
+
+    if (title.isNotEmpty())
+        args.add ("--title=" + title);
+
+    if (selectMultipleFiles)
+    {
+        separator = "\n";
+        args.add ("--multiple");
+        args.add ("--separate-output");
+        args.add ("--getopenfilename");
+    }
+    else
+    {
+        if (isSave)             args.add ("--getsavefilename");
+        else if (isDirectory)   args.add ("--getexistingdirectory");
+        else                    args.add ("--getopenfilename");
+    }
+
+    if (uint64 topWindowID = getTopWindowID())
+    {
+        args.add ("--attach");
+        args.add (String (topWindowID));
+    }
+
+    File startPath;
+
+    if (file.exists())
+    {
+        startPath = file;
+    }
+    else if (file.getParentDirectory().exists())
+    {
+        startPath = file.getParentDirectory();
+    }
+    else
+    {
+        startPath = File::getSpecialLocation (File::userHomeDirectory);
+
+        if (isSave)
+            startPath = startPath.getChildFile (file.getFileName());
+    }
+
+    args.add (startPath.getFullPathName());
+    args.add (filters.replaceCharacter (';', ' '));
+}
+
+static void addZenityArgs (StringArray& args, String& separator,
+                           const String& title, const File& file, const String& filters,
+                           bool isDirectory, bool isSave, bool selectMultipleFiles)
+{
+    args.add ("zenity");
+    args.add ("--file-selection");
+
+    if (title.isNotEmpty())
+        args.add ("--title=" + title);
+
+    if (selectMultipleFiles)
+    {
+        separator = ":";
+        args.add ("--multiple");
+        args.add ("--separator=" + separator);
+    }
+    else
+    {
+        if (isDirectory)  args.add ("--directory");
+        if (isSave)       args.add ("--save");
+    }
+
+    if (filters.isNotEmpty() && filters != "*" && filters != "*.*")
+    {
+        args.add ("--file-filter");
+        args.add (filters.replaceCharacter (';', ' '));
+
+        args.add ("--file-filter");
+        args.add ("All files | *");
+    }
+
+    if (file.isDirectory())
+        file.setAsCurrentWorkingDirectory();
+    else if (file.getParentDirectory().exists())
+        file.getParentDirectory().setAsCurrentWorkingDirectory();
+    else
+        File::getSpecialLocation (File::userHomeDirectory).setAsCurrentWorkingDirectory();
+
+    if (! file.getFileName().isEmpty())
+        args.add ("--filename=" + file.getFileName());
+
+    // supplying the window ID of the topmost window makes sure that Zenity pops up..
+    if (uint64 topWindowID = getTopWindowID())
+        setenv ("WINDOWID", String (topWindowID).toRawUTF8(), true);
+}
+
+void FileChooser::showPlatformDialog (Array<File>& results,
+                                      const String& title, const File& file, const String& filters,
+                                      bool isDirectory, bool /* selectsFiles */,
+                                      bool isSave, bool /* warnAboutOverwritingExistingFiles */,
+                                      bool selectMultipleFiles, FilePreviewComponent*)
+{
+    const File previousWorkingDirectory (File::getCurrentWorkingDirectory());
+
+    StringArray args;
+    String separator;
+
+    // use kdialog for KDE sessions or if zenity is missing
+    if (exeIsAvailable ("kdialog") && (isKdeFullSession() || ! exeIsAvailable ("zenity")))
+        addKDialogArgs (args, separator, title, file, filters, isDirectory, isSave, selectMultipleFiles);
+    else
+        addZenityArgs (args, separator, title, file, filters, isDirectory, isSave, selectMultipleFiles);
+
+    args.add ("2>/dev/null"); // (to avoid logging info ending up in the results)
+
+    ChildProcess child;
+
+    if (child.start (args, ChildProcess::wantStdOut))
+    {
+        const String result (child.readAllProcessOutput().trim());
+
+        if (result.isNotEmpty())
+        {
+            StringArray tokens;
+
+            if (selectMultipleFiles)
+                tokens.addTokens (result, separator, "\"");
+            else
+                tokens.add (result);
+
+            for (int i = 0; i < tokens.size(); ++i)
+                results.add (File::getCurrentWorkingDirectory().getChildFile (tokens[i]));
+        }
+
+        child.waitForProcessToFinish (60 * 1000);
+    }
+
+    previousWorkingDirectory.setAsCurrentWorkingDirectory();
+}