Adding gwt QR Code generator, and appspot configuration files.

[zxing.git] / zxing.appspot.com / generator / src / com / google / zxing / web / generator / client / GeneratorSource.java

diff --git a/zxing.appspot.com/generator/src/com/google/zxing/web/generator/client/GeneratorSource.java b/zxing.appspot.com/generator/src/com/google/zxing/web/generator/client/GeneratorSource.java
new file mode 100644 (file)
index 0000000..00a277d
--- /dev/null
+++ b/zxing.appspot.com/generator/src/com/google/zxing/web/generator/client/GeneratorSource.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2008 ZXing authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.zxing.web.generator.client;
+
+import com.google.gwt.user.client.ui.Grid;
+import com.google.gwt.user.client.ui.Widget;
+
+/**
+ * Base interface for any generator.
+ * 
+ * @author Yohann Coppel
+ */
+public interface GeneratorSource {
+  /**
+   * @return a GWT Grid object, containing the GUI.
+   */
+  public Grid getWidget();
+  /**
+   * @return the name of the generator to be used in the GUI.
+   */
+  public String getName();
+  /**
+   * @return the text to be encoded into the QR code.
+   * @throws GeneratorException if the input data contains errors.
+   */
+  public String getText() throws GeneratorException;
+  /**
+   * @param widget the widget that was last modified, and that we want to
+   *        validate the content.
+   * @throws GeneratorException if the widget contains errors.
+   */
+  public void validate(Widget widget) throws GeneratorException;
+  /**
+   * Called when the generator is selected in the list. Using this method,
+   * the generator should set the focus to the first widget it defines.
+   */
+  public void setFocus();
+}