Added Contributed Platforms.

- TargetPackage / TargetPlatform / TargetBoard are now interfaces
- Contributions installed are detected during init time
- Tools must be referenced through "path" property (automatically set
  by the IDE to the contributed tool path)

arduino-core/src/processing/app/debug/LegacyTargetPackage.java

@@ -0,0 +1,84 @@
+/*
+ TargetPackage - Represents a hardware package
+ Part of the Arduino project - http://www.arduino.cc/
+
+ Copyright (c) 2011 Cristian Maglie
+
+ This program 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 2 of the License, or
+ (at your option) any later version.
+
+ This program 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 this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+package processing.app.debug;
+
+import static processing.app.I18n._;
+import static processing.app.helpers.filefilters.OnlyDirs.ONLY_DIRS;
+
+import java.io.File;
+import java.util.Collection;
+import java.util.LinkedHashMap;
+import java.util.Map;
+
+import processing.app.I18n;
+
+public class LegacyTargetPackage implements TargetPackage {
+
+  private String id;
+  private Map<String, TargetPlatform> platforms;
+
+  public LegacyTargetPackage(String _id, File _folder) throws TargetPlatformException {
+    id = _id;
+    platforms = new LinkedHashMap<String, TargetPlatform>();
+
+    File[] folders = _folder.listFiles(ONLY_DIRS);
+    if (folders == null)
+      return;
+
+    for (File subFolder : folders) {
+      if (!subFolder.exists() || !subFolder.canRead())
+        continue;
+      String arch = subFolder.getName();
+      try {
+        TargetPlatform platform = new LegacyTargetPlatform(arch, subFolder, this);
+        platforms.put(arch, platform);
+      } catch (TargetPlatformException e) {
+        System.out.println(e.getMessage());
+      }
+    }
+
+    if (platforms.size() == 0) {
+      throw new TargetPlatformException(I18n
+          .format(_("No valid hardware definitions found in folder {0}."),
+                  _folder.getName()));
+    }
+  }
+
+  @Override
+  public Map<String, TargetPlatform> getPlatforms() {
+    return platforms;
+  }
+
+  @Override
+  public Collection<TargetPlatform> platforms() {
+    return platforms.values();
+  }
+
+  @Override
+  public TargetPlatform get(String platform) {
+    return platforms.get(platform);
+  }
+
+  @Override
+  public String getId() {
+    return id;
+  }
+}