From: Niki Roo <niki@nikiroo.be>
Date: Tue, 22 Dec 2020 13:28:34 +0000 (+0100)
Subject: New: SearchBar
X-Git-Url: http://git.nikiroo.be/?a=commitdiff_plain;h=7a55041dd8940f529ab47284ee722e286b2e47e6;p=nikiroo-utils.git

New: SearchBar
---

diff --git a/src/be/nikiroo/utils/ui/SearchBar.java b/src/be/nikiroo/utils/ui/SearchBar.java
new file mode 100644
index 0000000..ffbc78b
--- /dev/null
+++ b/src/be/nikiroo/utils/ui/SearchBar.java
@@ -0,0 +1,148 @@
+package be.nikiroo.utils.ui;
+
+import java.awt.BorderLayout;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.KeyAdapter;
+import java.awt.event.KeyEvent;
+import java.io.IOException;
+import java.io.InputStream;
+
+import javax.swing.ImageIcon;
+import javax.swing.JButton;
+import javax.swing.JTextField;
+import javax.swing.SwingUtilities;
+
+import be.nikiroo.utils.IOUtils;
+
+/**
+ * A generic search/filter bar.
+ * 
+ * @author niki
+ */
+public class SearchBar extends ListenerPanel {
+	static private final long serialVersionUID = 1L;
+	static private ImageIcon searchIcon;
+	static private ImageIcon clearIcon;
+
+	private JButton search;
+	private JTextField text;
+	private JButton clear;
+
+	private boolean realTime;
+
+	/**
+	 * Create a new {@link SearchBar}.
+	 */
+	public SearchBar() {
+		setLayout(new BorderLayout());
+
+		// TODO: make an option to change the default setting here:
+		// (can already be manually toggled by the user)
+		realTime = true;
+
+		if (searchIcon == null)
+			searchIcon = getIcon("search-16x16.png");
+		if (clearIcon == null)
+			clearIcon = getIcon("clear-16x16.png");
+
+		search = new JButton(searchIcon);
+		if (searchIcon == null) {
+			search.setText("[s]");
+		}
+		UIUtils.setButtonPressed(search, realTime);
+		search.addActionListener(new ActionListener() {
+			@Override
+			public void actionPerformed(ActionEvent e) {
+				realTime = !realTime;
+				UIUtils.setButtonPressed(search, realTime);
+				text.requestFocus();
+
+				if (realTime) {
+					fireActionPerformed(getText());
+				}
+			}
+		});
+
+		text = new JTextField();
+		text.addKeyListener(new KeyAdapter() {
+			@Override
+			public void keyTyped(final KeyEvent e) {
+				super.keyTyped(e);
+				SwingUtilities.invokeLater(new Runnable() {
+					@Override
+					public void run() {
+						boolean empty = (text.getText().isEmpty());
+						clear.setVisible(!empty);
+
+						if (realTime) {
+							fireActionPerformed(getText());
+						}
+					}
+				});
+			}
+		});
+		text.addActionListener(new ActionListener() {
+			@Override
+			public void actionPerformed(ActionEvent e) {
+				if (!realTime) {
+					fireActionPerformed(getText());
+				}
+			}
+		});
+
+		clear = new JButton(clearIcon);
+		if (clearIcon == null) {
+			clear.setText("(c)");
+		}
+		clear.setBackground(text.getBackground());
+		clear.setVisible(false);
+		clear.addActionListener(new ActionListener() {
+			@Override
+			public void actionPerformed(ActionEvent e) {
+				text.setText("");
+				clear.setVisible(false);
+				text.requestFocus();
+
+				fireActionPerformed(getText());
+			}
+		});
+
+		add(search, BorderLayout.WEST);
+		add(text, BorderLayout.CENTER);
+		add(clear, BorderLayout.EAST);
+	}
+
+	/**
+	 * Return the current text displayed by this {@link SearchBar}, or an empty
+	 * {@link String} if none.
+	 * 
+	 * @return the text, cannot be NULL
+	 */
+	public String getText() {
+		// Should usually not be NULL, but not impossible
+		String text = this.text.getText();
+		return text == null ? "" : text;
+	}
+
+	@Override
+	public void setEnabled(boolean enabled) {
+		search.setEnabled(enabled);
+		clear.setEnabled(enabled);
+		text.setEnabled(enabled);
+		super.setEnabled(enabled);
+	}
+
+	private ImageIcon getIcon(String name) {
+		InputStream in = IOUtils.openResource(SearchBar.class, name);
+		if (in != null) {
+			try {
+				return new ImageIcon(IOUtils.toByteArray(in));
+			} catch (IOException e) {
+				e.printStackTrace();
+			}
+		}
+
+		return null;
+	}
+}
diff --git a/src/be/nikiroo/utils/ui/clear-16x16.png b/src/be/nikiroo/utils/ui/clear-16x16.png
new file mode 100644
index 0000000..3ea2622
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diff --git a/src/be/nikiroo/utils/ui/search-16x16.png b/src/be/nikiroo/utils/ui/search-16x16.png
new file mode 100644
index 0000000..0164b31
Binary files /dev/null and b/src/be/nikiroo/utils/ui/search-16x16.png differ