GUI stuff.

Almost finished with imports from version one.

1 files changed, 167 insertions, 0 deletions

diff --git a/BJC-Utils2/src/main/java/bjc/utils/gui/SimpleFileChooser.java b/BJC-Utils2/src/main/java/bjc/utils/gui/SimpleFileChooser.java
new file mode 100644
index 0000000..fd5492b
--- /dev/null
+++ b/BJC-Utils2/src/main/java/bjc/utils/gui/SimpleFileChooser.java
@@ -0,0 +1,167 @@
+package bjc.utils.gui;
+
+import java.awt.Component;
+import java.io.File;
+
+import javax.swing.JFileChooser;
+
+/**
+ * Utility class for easily prompting user for files.
+ * @author ben
+ *
+ */
+public class SimpleFileChooser {
+	private static File doOpenFile(Component par, String title,
+			JFileChooser files) {
+		files.setDialogTitle(title);
+
+		boolean success = false;
+
+		while (!success) {
+			try {
+				maybeDoOpenFile(par, files);
+				
+				success = true;
+			} catch (FileNotChosenException e) {
+				SimpleDialogs.showError(par, "I/O Error",
+						"Please pick a file to open");
+			}
+		}
+
+		return files.getSelectedFile();
+	}
+
+	private static File doSaveFile(Component par, String title,
+			JFileChooser files) {
+		files.setDialogTitle(title);
+
+		boolean success = false;
+
+		while (!success) {
+			try {
+				maybeDoSaveFile(par, files);
+				
+				return files.getSelectedFile();
+			} catch (FileNotChosenException e) {
+				SimpleDialogs.showError(par, "I/O Error",
+						"Please pick a file to save to");
+			}
+		}
+
+		return files.getSelectedFile();
+	}
+
+	private static void maybeDoSaveFile(Component par, JFileChooser files)
+			throws FileNotChosenException {
+		int res = files.showSaveDialog(par);
+
+		System.out.println("Result: " + res);
+		
+		if (res != JFileChooser.APPROVE_OPTION) {
+			throw new FileNotChosenException();
+		}
+	}
+
+	private static void maybeDoOpenFile(Component par, JFileChooser files)
+			throws FileNotChosenException {
+		int res = files.showSaveDialog(par);
+
+		if (res != JFileChooser.APPROVE_OPTION) {
+			throw new FileNotChosenException();
+		}
+	}
+
+	/**
+	 * Prompt the user with a "Open File..." dialog.
+	 * 		Keeps prompting them until they pick a file.
+	 * @param par The component to use as the parent for the dialog.
+	 * @param title The title of the dialog to prompt with.
+	 * @return The file the user has chosen.
+	 */
+	public static File getOpenFile(Component par, String title) {
+		JFileChooser files = new JFileChooser();
+
+		return doOpenFile(par, title, files);
+	}
+
+	/**
+	 * Prompt the user with a "Open File..." dialog.
+	 * 		Keeps prompting them until they pick a file.
+	 * @param par The component to use as the parent for the dialog.
+	 * @param title The title of the dialog to prompt with.
+	 * @param extensions The list of file extensions the file should have.
+	 * @return The file the user has chosen.
+	 */
+	public static File getOpenFile(Component par, String title,
+			String... extensions) {
+		JFileChooser files = new JFileChooser();
+		files.addChoosableFileFilter(new ExtensionFileFilter(extensions));
+
+		return doOpenFile(par, title, files);
+	}
+
+	/**
+	 * Prompt the user with a "Open File..." dialog.
+	 * @param par The component to use as the parent for the dialog.
+	 * @param title The title of the dialog to prompt with.
+	 * @return The file if the user chose one or null if they didn't.
+	 */
+	public static File maybeOpenFile(Component par, String title) {
+		JFileChooser files = new JFileChooser();
+		files.setDialogTitle(title);
+		
+		try {
+			maybeDoOpenFile(par, files);
+		} catch (FileNotChosenException e) {
+		}
+		
+		return files.getSelectedFile();
+	}
+	
+	/**
+	 * Prompt the user with a "Save File..." dialog.
+	 * @param par The component to use as the parent for the dialog.
+	 * @param title The title of the dialog to prompt with.
+	 * @return The file if the user chose one or null if they didn't.
+	 */
+	public static File maybeSaveFile(Component par, String title) {
+		JFileChooser files = new JFileChooser();
+		files.setDialogTitle(title);
+		
+		try {
+			maybeDoSaveFile(par, files);
+		} catch (FileNotChosenException e) {
+		}
+		
+		return files.getSelectedFile();
+	}
+	
+	/**
+	 * Prompt the user with a "Save File..." dialog.
+	 * 		
+	 * @param par The component to use as the parent for the dialog.
+	 * @param title The title of the dialog to prompt with.
+	 * @return The file the user chose.
+	 */
+	public static File getSaveFile(Component par, String title) {
+		JFileChooser files = new JFileChooser();
+
+		return doSaveFile(par, title, files);
+	}
+	
+	/**
+	 * Prompt the user with a "Save File..." dialog.
+	 * 		
+	 * @param par The component to use as the parent for the dialog.
+	 * @param title The title of the dialog to prompt with.
+	 * @param extensions The extensions of the files the user can choose.
+	 * @return The file the user chose.
+	 */
+	public static File getSaveFile(Component par, String title,
+			String... extensions) {
+		JFileChooser files = new JFileChooser();
+		files.addChoosableFileFilter(new ExtensionFileFilter(extensions));
+
+		return doSaveFile(par, title, files);
+	}
+}