Initial commit

.gitignore

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+.project
+.classpath

MANIFEST.MF

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+Manifest-Version: 1.0
+Main-Class: cz.aiken.util.lwtt.Main
+Class-Path: lib/swing-layout-1.0.3.jar

Makefile

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+
+PREFIX = /usr/local
+SRCDIR = .
+BUILDLIBDIR = lib
+BUILDDIR = build
+
+JARFILE = lwtt.jar
+MANIFEST = MANIFEST.MF
+
+JAVAC = javac
+INSTALL = install
+
+CLASSPATH = $(BUILDLIBDIR)/swing-layout-1.0.3.jar
+
+JAVACFLAGS = -classpath $(CLASSPATH)
+
+PKGPATH = cz/aiken/util/lwtt
+SRCPATH = $(SRCDIR)/$(PKGPATH)
+PACKAGE = cz.aiken.util.lwtt
+
+
+all: $(JARFILE)
+
+$(JARFILE):
+	mkdir -p $(BUILDDIR)
+	javac $(JAVACFLAGS) -d $(BUILDDIR) $(SRCPATH)/*.java
+	jar cfm $(JARFILE) $(MANIFEST) -C $(BUILDDIR) $(PKGPATH)/ 
+
+clean:
+	rm -f $(JARFILE)
+	rm -rf $(BUILDDIR)
+
+distclean: clean
+
+.PHONY: all clean distclean
+
+.POSIX:
+
+
+

cz/aiken/util/lwtt/Main.java

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+/*
+ * Main.java - main LWTT class
+ *
+ * Copyright (c) 2006, 2007, 2008 Lukas Jelinek, http://www.aiken.cz
+ *
+ * ==========================================================================
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License Version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * ==========================================================================
+ */
+
+package cz.aiken.util.lwtt;
+
+import javax.swing.*;
+
+/**
+ * This class represents the application itself. It creates the main
+ * application frame and makes it visible.
+ * @author luk
+ */
+public class Main implements Runnable {
+
+    /**
+     * Main class constructor.
+     */
+    public Main() {
+
+    }
+
+    /**
+     * Creates the main frame and makes it visible. Then it hands control
+     * on the main application loop.
+     * 
+     * <I>This method may be called only by the event-dispatching thread.</I>
+     */
+    public void run() {
+        TaskFrame tf = new TaskFrame();
+        tf.setVisible(true);
+    } 
+
+    /**
+     * The main application method. It starts the application by
+     * scheduling the initialization for the event-dispatching thread.
+     * @param args the command line arguments (currently ignored)
+     */
+    public static void main(String[] args) {
+        SwingUtilities.invokeLater(new Main());                
+    }
+
+}

cz/aiken/util/lwtt/Task.java

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+/*
+ * Task.java - implementation of tracked task
+ *
+ * Copyright (c) 2006, 2007, 2008 Lukas Jelinek, http://www.aiken.cz
+ *
+ * ==========================================================================
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License Version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * ==========================================================================
+ */
+
+package cz.aiken.util.lwtt;
+
+import javax.swing.Timer;
+import java.awt.event.*;
+
+/**
+ * This class represents a tracked task.
+ * @author luk
+ */
+public class Task implements ActionListener, Comparable<Task> {
+    private int id;
+
+    private String name = "Unnamed task";
+    private long consumption = 0L;
+    private double price = 1;
+
+    private Timer timer = null;
+    /**
+     * period for updating time values [ms]
+     */
+    public static final int PERIOD = 10000;
+
+    /**
+     * time units per hour
+     */
+    public static final double UNITS_PER_HOUR = 3600000;
+
+    private ActionListener listener = null;
+
+    private static int nextId = 0;
+
+    /**
+     * Generates a new task identifier.
+     * @return new identifier
+     */
+    public static int getNewId() {
+        int id = nextId;
+        nextId++;
+        return id;
+    }
+
+    /**
+     * Creates a new instance of Task
+     */
+    public Task() {
+        id = getNewId();
+    }
+
+    /**
+     * Creates an instance for a task which has been already tracked.
+     * @param id task identifier
+     * @param name task name
+     * @param consumption up to now time consumption
+     * @param price price per hour
+     */
+    public Task(int id, String name, long consumption, double price) {
+        this.id = id;
+        this.name = name;
+        this.consumption = consumption;
+        this.price = price;
+
+        if (id >= nextId)
+            nextId = id + 1;
+    }
+
+    /**
+     * Sets the listener where action events should be passed to.
+     * @param al action listener
+     */
+    public void setActionListener(ActionListener al) {
+        listener = al;
+    }
+
+    /**
+     * Returns the task identifier.
+     * @return task identifier
+     */
+    public int getId() {
+        return id;
+    }
+
+    /**
+     * Returns the task name.
+     * @return task name
+     */
+    public String getName() {
+        return name;
+    }
+
+    /**
+     * Sets the task name.
+     * @param name new task name
+     */
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    /**
+     * Returns the current value of cumulative consumption [ms].
+     * @return current cumulative consumption
+     */
+    public long getConsumption() {
+        return consumption;
+    }
+
+    /**
+     * Sets the task cumulative time consumption [ms].
+     * @param consumption new time consumption value
+     */
+    public void setConsumption(long consumption) {
+        this.consumption = consumption;
+    }
+
+    /**
+     *  Sets the price per hour [currency unit].
+     *  Changing this parameter affects the current total price of the task.
+     * @param price new price value
+     */
+    public void setPrice(double price) {
+        this.price = price;
+    }
+
+    /**
+     * Returns the current price per hour [currency unit].
+     * @return current price value
+     */
+    public double getPrice() {
+        return price;
+    }
+
+    /**
+     *  Returns the total price of this task [currency unit].
+     * @return total price of this task
+     */
+    public double getTotalPrice() {
+        return ((double) consumption) / UNITS_PER_HOUR * price;
+    }
+
+    /**
+     * Converts the instance to the string representation. It contains
+     * the task name and consumption.
+     * @return string representation
+     */
+    @Override
+    public String toString() {
+        return name + "(" + Long.toString(consumption) + ")";
+    }
+
+    /**
+     * Starts tracking of this task.
+     */
+    public void start() {
+        if (timer != null)
+            return;
+
+        timer = new Timer(PERIOD, this);
+        timer.start();
+    }
+
+    /**
+     * Stops tracking of this task.
+     */
+    public void stop() {
+        if (timer == null)
+            return;
+
+        timer.stop();
+        timer = null;
+    }
+
+    /**
+     * Checks whether the task is running.
+     * @return <CODE>true</CODE> if running, <CODE>false</CODE> otherwise
+     */
+    public boolean isRunning() {
+        return timer != null;
+    }
+
+    /**
+     * Updates the time consumption value. Then it creates a new action event
+     * and passes it to the assigned listener (if any).
+     * @param e action event
+     */
+    public void actionPerformed(ActionEvent e) {
+        consumption += PERIOD;
+
+        ActionEvent e2 = new ActionEvent(this, id, "");
+
+        if (listener != null)
+            listener.actionPerformed(e2);
+    }
+
+    /**
+     * Compares this task to another one. The comparison result is based
+     * on task identifiers.
+     * @param t another task
+     * @return 1 if this class' id is greater then the given class' id,
+     * -1 if both ids are equal and 0 otherwise
+     */
+    public int compareTo(Task t) {
+        if (t == null)
+            throw new NullPointerException("cannot compare to null pointer");
+
+        if (id > t.getId())
+           return 1;
+        else if (id == t.getId())
+            return 0;
+        else
+            return -1;
+    }    
+
+}