From d8b3b3c5e4441cecec98c06a36fc81570008c888 Mon Sep 17 00:00:00 2001
From: bculkin2442 <bjculkin@mix.wvu.edu>
Date: Tue, 26 Jan 2016 11:32:41 -0500
Subject: Updates to various things, and addition of a graph class.

---
 .../bjc/utils/gui/awt/ExtensionFileFilter.java     | 37 ++++++++++++++
 .../java/bjc/utils/gui/awt/SimpleFileDialog.java   | 58 ++++++++++++++++++++++
 2 files changed, 95 insertions(+)
 create mode 100644 BJC-Utils2/src/main/java/bjc/utils/gui/awt/ExtensionFileFilter.java
 create mode 100644 BJC-Utils2/src/main/java/bjc/utils/gui/awt/SimpleFileDialog.java

(limited to 'BJC-Utils2/src/main/java/bjc/utils/gui/awt')

diff --git a/BJC-Utils2/src/main/java/bjc/utils/gui/awt/ExtensionFileFilter.java b/BJC-Utils2/src/main/java/bjc/utils/gui/awt/ExtensionFileFilter.java
new file mode 100644
index 0000000..fb857eb
--- /dev/null
+++ b/BJC-Utils2/src/main/java/bjc/utils/gui/awt/ExtensionFileFilter.java
@@ -0,0 +1,37 @@
+package bjc.utils.gui.awt;
+
+import java.io.File;
+import java.io.FilenameFilter;
+import java.util.ArrayList;
+import java.util.List;
+
+import bjc.utils.funcdata.FunctionalList;
+
+public class ExtensionFileFilter implements FilenameFilter {
+	private FunctionalList<String> extensions;
+
+	/**
+	 * Create a new filter only showing files with the specified extensions.
+	 * @param exts The extensions to show in this filter.
+	 */
+	public ExtensionFileFilter(String... exts) {
+		extensions = new FunctionalList<>(new ArrayList<>(exts.length));
+
+		for (String ext : exts) {
+			extensions.add(ext);
+		}
+	}
+
+	/**
+	 * Create a new filter only showing files with the specified extensions.
+	 * @param exts The extensions to show in this filter.
+	 */
+	public ExtensionFileFilter(List<String> exts) {
+		extensions = new FunctionalList<>(exts);
+	}
+
+	@Override
+	public boolean accept(File dir, String name) {
+		return extensions.anyMatch(name::endsWith);
+	}
+}
\ No newline at end of file
diff --git a/BJC-Utils2/src/main/java/bjc/utils/gui/awt/SimpleFileDialog.java b/BJC-Utils2/src/main/java/bjc/utils/gui/awt/SimpleFileDialog.java
new file mode 100644
index 0000000..1d14903
--- /dev/null
+++ b/BJC-Utils2/src/main/java/bjc/utils/gui/awt/SimpleFileDialog.java
@@ -0,0 +1,58 @@
+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;
+
+public class SimpleFileDialog {
+	public static File getOpenFile(Frame par, String title,
+			String... extensions) {
+		FileDialog fd = new FileDialog(par, title, FileDialog.LOAD);
+
+		if (extensions != null) {
+			FilenameFilter filter = new ExtensionFileFilter(extensions);
+			fd.setFilenameFilter(filter);
+		}
+
+		fd.setVisible(true);
+
+		while (fd.getFile() == null) {
+			SimpleDialogs.showError(par, "File I/O Error",
+					"Please choose a file to open.");
+			fd.setVisible(true);
+		}
+
+		return fd.getFiles()[0];
+	}
+
+	public static File getOpenFile(Frame par, String title) {
+		return getOpenFile(par, title, (String[]) null);
+	}
+	
+	public static File getSaveFile(Frame par, String title,
+			String... extensions) {
+		FileDialog fd = new FileDialog(par, title, FileDialog.SAVE);
+
+		if (extensions != null) {
+			FilenameFilter filter = new ExtensionFileFilter(extensions);
+			fd.setFilenameFilter(filter);
+		}
+
+		fd.setVisible(true);
+
+		while (fd.getFile() == null) {
+			SimpleDialogs.showError(par, "File I/O Error",
+					"Please choose a file to save to.");
+			fd.setVisible(true);
+		}
+
+		return fd.getFiles()[0];
+	}
+
+	public static File getSaveFile(Frame par, String title) {
+		return getSaveFile(par, title, (String[]) null);
+	}
+}
-- 
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