Start splitting into maven modules

2 files changed, 194 insertions, 0 deletions

diff --git a/base/src/main/java/bjc/utils/gui/awt/ExtensionFileFilter.java b/base/src/main/java/bjc/utils/gui/awt/ExtensionFileFilter.java
new file mode 100644
index 0000000..eb60ae2
--- /dev/null
+++ b/base/src/main/java/bjc/utils/gui/awt/ExtensionFileFilter.java
@@ -0,0 +1,50 @@
+package bjc.utils.gui.awt;
+
+import java.io.File;
+import java.io.FilenameFilter;
+import java.util.List;
+
+import bjc.utils.funcdata.FunctionalList;
+import bjc.utils.funcdata.IList;
+
+/**
+ * Filter a set of filenames by extension.
+ *
+ * Built for AWT
+ *
+ * @author ben
+ *
+ */
+public class ExtensionFileFilter implements FilenameFilter {
+	/**
+	 * The list of extensions to filter
+	 */
+	private final IList<String> extensions;
+
+	/**
+	 * Create a new filter only showing files with the specified extensions.
+	 *
+	 * @param exts
+	 *                The extensions to show in this filter.
+	 */
+	public ExtensionFileFilter(final List<String> exts) {
+		if (exts == null) throw new NullPointerException("Extensions must not be null");
+
+		extensions = new FunctionalList<>(exts);
+	}
+
+	/**
+	 * Create a new filter only showing files with the specified extensions.
+	 *
+	 * @param exts
+	 *                The extensions to show in this filter.
+	 */
+	public ExtensionFileFilter(final String... exts) {
+		extensions = new FunctionalList<>(exts);
+	}
+
+	@Override
+	public boolean accept(final File directory, final String name) {
+		return extensions.anyMatch(name::endsWith);
+	}
+}
\ No newline at end of file
diff --git a/base/src/main/java/bjc/utils/gui/awt/SimpleFileDialog.java b/base/src/main/java/bjc/utils/gui/awt/SimpleFileDialog.java
new file mode 100644
index 0000000..77a4a59
--- /dev/null
+++ b/base/src/main/java/bjc/utils/gui/awt/SimpleFileDialog.java
@@ -0,0 +1,144 @@
+package bjc.utils.gui.awt;
+
+import java.awt.FileDialog;
+import java.awt.Frame;
+import java.io.File;
+import java.io.FilenameFilter;
+
+import bjc.utils.gui.SimpleDialogs;
+
+/**
+ * A simple way to get the user to pick a file
+ *
+ * Built for AWT.
+ *
+ * @author ben
+ *
+ */
+public class SimpleFileDialog {
+	/**
+	 * Prompt the user to pick a file to open
+	 *
+	 * @param parent
+	 *                The parent of the file picker
+	 * @param title
+	 *                The title of the file picker
+	 * @return The file the user picked
+	 */
+	public static File getOpenFile(final Frame parent, final String title) {
+		return getOpenFile(parent, title, (String[]) null);
+	}
+
+	/**
+	 * Prompt the user to pick a file to open
+	 *
+	 * @param parent
+	 *                The parent of the file picker
+	 * @param title
+	 *                The title of the file picker
+	 * @param extensions
+	 *                The extensions to accept as valid
+	 * @return The file the user picked
+	 */
+	public static File getOpenFile(final Frame parent, final String title, final String... extensions) {
+		if (parent == null)
+			throw new NullPointerException("Parent must not be null");
+		else if (title == null) throw new NullPointerException("Title must not be null");
+
+		final FileDialog chooser = new FileDialog(parent, title, FileDialog.LOAD);
+
+		if (extensions != null) {
+			final FilenameFilter filter = new ExtensionFileFilter(extensions);
+			chooser.setFilenameFilter(filter);
+		}
+
+		chooser.setVisible(true);
+
+		while (chooser.getFile() == null) {
+			SimpleDialogs.showError(parent, "File I/O Error", "Please choose a file to open.");
+			chooser.setVisible(true);
+		}
+
+		return chooser.getFiles()[0];
+	}
+
+	/**
+	 * Prompt the user to pick a file to open
+	 *
+	 * @param parent
+	 *                The parent of the file picker
+	 * @param title
+	 *                The title of the file picker
+	 * @param extensions
+	 *                The extensions to accept as valid
+	 * @return The file the user picked
+	 */
+	public static File[] getOpenFiles(final Frame parent, final String title, final String... extensions) {
+		if (parent == null)
+			throw new NullPointerException("Parent must not be null");
+		else if (title == null) throw new NullPointerException("Title must not be null");
+
+		final FileDialog chooser = new FileDialog(parent, title, FileDialog.LOAD);
+
+		if (extensions != null) {
+			final FilenameFilter filter = new ExtensionFileFilter(extensions);
+			chooser.setFilenameFilter(filter);
+		}
+
+		chooser.setMultipleMode(true);
+		chooser.setVisible(true);
+
+		while (chooser.getFile() == null) {
+			SimpleDialogs.showError(parent, "File I/O Error", "Please choose a file to open.");
+			chooser.setVisible(true);
+		}
+
+		return chooser.getFiles();
+	}
+
+	/**
+	 * Prompt the user to pick a file to save
+	 *
+	 * @param parent
+	 *                The parent of the file picker
+	 * @param title
+	 *                The title of the file picker
+	 * @return The file the user picked
+	 */
+	public static File getSaveFile(final Frame parent, final String title) {
+		return getSaveFile(parent, title, (String[]) null);
+	}
+
+	/**
+	 * Prompt the user to pick a file to save
+	 *
+	 * @param parent
+	 *                The parent of the file picker
+	 * @param title
+	 *                The title of the file picker
+	 * @param extensions
+	 *                The extensions to accept as valid
+	 * @return The file the user picked
+	 */
+	public static File getSaveFile(final Frame parent, final String title, final String... extensions) {
+		if (parent == null)
+			throw new NullPointerException("Parent must not be null");
+		else if (title == null) throw new NullPointerException("Title must not be null");
+
+		final FileDialog chooser = new FileDialog(parent, title, FileDialog.SAVE);
+
+		if (extensions != null) {
+			final FilenameFilter filter = new ExtensionFileFilter(extensions);
+			chooser.setFilenameFilter(filter);
+		}
+
+		chooser.setVisible(true);
+
+		while (chooser.getFile() == null) {
+			SimpleDialogs.showError(parent, "File I/O Error", "Please choose a file to save to.");
+			chooser.setVisible(true);
+		}
+
+		return chooser.getFiles()[0];
+	}
+}