1 files changed, 208 insertions, 0 deletions
diff --git a/base/src/main/java/bjc/utils/gui/SimpleInternalDialogs.java b/base/src/main/java/bjc/utils/gui/SimpleInternalDialogs.java
new file mode 100644
index 0000000..5237557
--- /dev/null
+++ b/base/src/main/java/bjc/utils/gui/SimpleInternalDialogs.java
@@ -0,0 +1,208 @@
+package bjc.utils.gui;
+
+import java.awt.Component;
+import java.util.function.Function;
+import java.util.function.Predicate;
+
+import javax.swing.JOptionPane;
+
+/**
+ * Utility class for getting simple input from the user.
+ *
+ * Modified to work with JDesktopPanes
+ *
+ * @author ben
+ *
+ */
+public class SimpleInternalDialogs {
+	/**
+	 * Get a bounded integer from the user.
+	 *
+	 * @param parent
+	 *                The parent component for the dialogs.
+	 * @param title
+	 *                The title for the dialogs.
+	 * @param prompt
+	 *                The prompt to tell the user what to enter.
+	 * @param lowerBound
+	 *                The lower integer bound to accept.
+	 * @param upperBound
+	 *                The upper integer bound to accept.
+	 * @return A int within the specified bounds.
+	 */
+	public static int getBoundedInt(final Component parent, final String title, final String prompt,
+			final int lowerBound, final int upperBound) {
+		return getValue(parent, title, prompt, (strang) -> {
+			try {
+				final int value = Integer.parseInt(strang);
+
+				return value < upperBound && value > lowerBound;
+			} catch (final NumberFormatException nfex) {
+				// We don't care about the specifics of the
+				// exception, just
+				// that this value isn't good
+				return false;
+			}
+		}, Integer::parseInt);
+	}
+
+	/**
+	 * Get a integer from the user
+	 *
+	 * @param parent
+	 *                The parent component for dialogs.
+	 * @param title
+	 *                The title for dialogs.
+	 * @param prompt
+	 *                The prompt to tell the user what to enter.
+	 * @return A int.
+	 */
+	public static int getInt(final Component parent, final String title, final String prompt) {
+		return getValue(parent, title, prompt, strang -> {
+			try {
+				Integer.parseInt(strang);
+				return true;
+			} catch (final NumberFormatException nfex) {
+				// We don't care about this exception, just mark
+				// the value
+				// as not good
+				return false;
+			}
+		}, Integer::parseInt);
+	}
+
+	/**
+	 * Get a string from the user
+	 *
+	 * @param parent
+	 *                The parent component for dialogs.
+	 * @param title
+	 *                The title for the dialogs.
+	 * @param prompt
+	 *                The prompt to tell the user what to enter.
+	 * @return A string.
+	 */
+	public static String getString(final Component parent, final String title, final String prompt) {
+		if (parent == null)
+			throw new NullPointerException("Parent must not be null");
+		else if (title == null)
+			throw new NullPointerException("Title must not be null");
+		else if (prompt == null) throw new NullPointerException("Prompt must not be null");
+
+		return JOptionPane.showInternalInputDialog(parent, prompt, title, JOptionPane.QUESTION_MESSAGE);
+	}
+
+	/**
+	 * Get a value parsable from a string from the user.
+	 *
+	 * @param <E>
+	 *                The type of the value parsed from the string
+	 *
+	 * @param parent
+	 *                The parent component for dialogs.
+	 * @param title
+	 *                The title for dialogs.
+	 * @param prompt
+	 *                The prompt to tell the user what to enter.
+	 * @param validator
+	 *                A predicate to determine if a input is valid.
+	 * @param transformer
+	 *                The function to transform the string into a value.
+	 * @return The value parsed from a string.
+	 */
+	public static <E> E getValue(final Component parent, final String title, final String prompt,
+			final Predicate<String> validator, final Function<String, E> transformer) {
+		if (validator == null)
+			throw new NullPointerException("Validator must not be null");
+		else if (transformer == null) throw new NullPointerException("Transformer must not be null");
+
+		String strang = getString(parent, title, prompt);
+
+		while (!validator.test(strang)) {
+			showError(parent, "I/O Error", "Please enter a valid value");
+
+			strang = getString(parent, title, prompt);
+		}
+
+		return transformer.apply(strang);
+	}
+
+	/**
+	 * Get a whole number from the user.
+	 *
+	 * @param parent
+	 *                The parent component for dialogs.
+	 * @param title
+	 *                The title for dialogs.
+	 * @param prompt
+	 *                The prompt to tell the user what to enter.
+	 * @return A whole number.
+	 */
+	public static int getWhole(final Component parent, final String title, final String prompt) {
+		return getBoundedInt(parent, title, prompt, 0, Integer.MAX_VALUE);
+	}
+
+	/**
+	 * Ask the user a Yes/No question.
+	 *
+	 * @param parent
+	 *                The parent component for dialogs.
+	 * @param title
+	 *                The title for dialogs.
+	 * @param question
+	 *                The question to ask the user.
+	 * @return True if the user said yes, false otherwise.
+	 */
+	public static boolean getYesNo(final Component parent, final String title, final String question) {
+		if (parent == null)
+			throw new NullPointerException("Parent must not be null");
+		else if (title == null)
+			throw new NullPointerException("Title must not be null");
+		else if (question == null) throw new NullPointerException("Question must not be null");
+
+		final int result = JOptionPane.showInternalConfirmDialog(parent, question, title,
+				JOptionPane.YES_NO_OPTION);
+
+		return result == JOptionPane.YES_OPTION ? true : false;
+	}
+
+	/**
+	 * Show a error message to the user
+	 *
+	 * @param parent
+	 *                The parent component for dialogs.
+	 * @param title
+	 *                The title for dialogs.
+	 * @param message
+	 *                The error to show the user.
+	 */
+	public static void showError(final Component parent, final String title, final String message) {
+		if (parent == null)
+			throw new NullPointerException("Parent must not be null");
+		else if (title == null)
+			throw new NullPointerException("Title must not be null");
+		else if (message == null) throw new NullPointerException("Error message must not be null");
+
+		JOptionPane.showInternalMessageDialog(parent, message, title, JOptionPane.ERROR_MESSAGE);
+	}
+
+	/**
+	 * Show an informative message to the user
+	 *
+	 * @param parent
+	 *                The parent for this dialog
+	 * @param title
+	 *                Show the title for this dialog
+	 * @param message
+	 *                Show the message for this dialog
+	 */
+	public static void showMessage(final Component parent, final String title, final String message) {
+		if (parent == null)
+			throw new NullPointerException("Parent must not be null");
+		else if (title == null)
+			throw new NullPointerException("Title must not be null");
+		else if (message == null) throw new NullPointerException("Message must not be null");
+
+		JOptionPane.showInternalMessageDialog(parent, title, message, JOptionPane.INFORMATION_MESSAGE);
+	}
+}