Java tutorial
/******************************************************************************* * Copyright (c) 2013 WPI-Suite * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: Team YOCO (You Only Compile Once) ******************************************************************************/ package com.tmathmeyer.sentinel.ui.views.month; import java.awt.Component; import java.awt.Dimension; import java.awt.Font; import java.awt.FontMetrics; import java.awt.GridLayout; import java.awt.Image; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import java.awt.event.MouseMotionListener; import java.io.IOException; import javax.imageio.ImageIO; import javax.swing.ImageIcon; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.border.EmptyBorder; import org.joda.time.DateTime; import com.tmathmeyer.sentinel.CalendarLogger; import com.tmathmeyer.sentinel.models.data.Commitment; import com.tmathmeyer.sentinel.models.data.Displayable; import com.tmathmeyer.sentinel.models.data.Event; import com.tmathmeyer.sentinel.ui.main.MainPanel; import com.tmathmeyer.sentinel.utils.Colors; /** * UI for displaying individual events/commitments in MonthDays. These are * collapsed into CollapsedMonthItem's when there is not enough space */ public class MonthItem extends JPanel { private static final long serialVersionUID = 1L; public static final String UNSTARTED_COMMITMENT_ICON = "/com/tmathmeyer/sentinel/img/commitment_unstarted.png"; public static final String COMMITMENT_IN_PROGRESS_ICON = "/com/tmathmeyer/sentinel/img/commitment_in_progress.png"; public static final String FINISHED_COMMITMENT = "/com/tmathmeyer/sentinel/img/commitment_complete.png"; private JLabel time = new JLabel(), name = new JLabel(), arrow = new JLabel(""); private JPanel categoryColor = new JPanel(); private DateTime currentTime; private Displayable mDisplayable; /** * Month Item constructor. When called without time, set time to current * time * * @param ndisp displayable to show on month item */ public MonthItem(Displayable ndisp, MonthDay parent) { this(ndisp, DateTime.now(), parent); } /** * MonthItem Constructor * * @param ndisp displayable to display * @param day time of month item */ public MonthItem(Displayable ndisp, DateTime day, final MonthDay parent) { currentTime = day; this.mDisplayable = ndisp; // Set up Month Item Layout setBackground(Colors.TABLE_BACKGROUND); setMaximumSize(new java.awt.Dimension(32767, 24)); setMinimumSize(new java.awt.Dimension(0, 0)); setLayout(new javax.swing.BoxLayout(this, javax.swing.BoxLayout.X_AXIS)); // Time label time.setFont(new java.awt.Font("DejaVu Sans", Font.BOLD, 12)); time.setBorder(javax.swing.BorderFactory.createEmptyBorder(1, 1, 1, 3)); // Name label name.putClientProperty("html.disable", true); name.setText(mDisplayable.getName() + " "); name.setFont(new java.awt.Font("DejaVu Sans", Font.PLAIN, 12)); name.setMinimumSize(new java.awt.Dimension(10, 15)); // Arrow label (for multi-day events) arrow.setFont(new java.awt.Font("DejaVu Sans", Font.BOLD, 12)); arrow.setBorder(javax.swing.BorderFactory.createEmptyBorder(0, 0, 0, 0)); arrow.setHorizontalAlignment(JLabel.CENTER); arrow.setVerticalAlignment(JLabel.CENTER); // Get the appropriate size for the arrow container based on the max // possible value FontMetrics arrowMetrics = getFontMetrics(arrow.getFont()); int width = arrowMetrics.stringWidth("\u2194"); int height = arrowMetrics.getHeight(); arrow.setPreferredSize(new Dimension(width, height)); arrow.setMaximumSize(new Dimension(width, height)); arrow.setMinimumSize(new Dimension(width, height)); // Box for category color and arrow label categoryColor.setLayout(new GridLayout(1, 1)); categoryColor.setPreferredSize(new Dimension(width + 3, height)); categoryColor.setMaximumSize(new Dimension(width + 3, height)); categoryColor.setMinimumSize(new Dimension(width + 3, height)); /** Display displayable based on whether it is an event or a commitment */ // If displayable is commitment, show commitment sign and name if (ndisp instanceof Commitment) { arrow.setForeground(Colors.COMMITMENT_NOT_STARTED); arrow.setText("\uFF01"); try { // Get the appropriate image based on the commitment's status // and put it on the label. Commitment castedDisp = (Commitment) ndisp; Image img = ImageIO.read(getClass().getResource(UNSTARTED_COMMITMENT_ICON)); if (Commitment.Status.IN_PROGRESS == castedDisp.getStatus()) { img = ImageIO.read(getClass().getResource(COMMITMENT_IN_PROGRESS_ICON)); } else if (Commitment.Status.COMPLETE == castedDisp.getStatus()) { img = ImageIO.read(getClass().getResource(FINISHED_COMMITMENT)); } arrow = new JLabel(new ImageIcon(img)); } catch (IOException ex) { CalendarLogger.LOGGER.severe(ex.toString()); } categoryColor.setBackground((Colors.TABLE_BACKGROUND)); categoryColor.setBorder(new EmptyBorder(0, 0, 0, 0)); time.setText(simpleTime(mDisplayable.getStart())); } else if (ndisp instanceof Event) // Else, show date, name, category, // and whether event is multiple day { categoryColor.setBackground(((Event) ndisp).getColor()); categoryColor.setBorder(new EmptyBorder(0, 0, 0, 0)); // Temporary variables for shorthand Event tmpEvent = ((Event) ndisp); DateTime eventStart = tmpEvent.getStart(); DateTime eventEnd = tmpEvent.getEnd(); if (isStartBeforeCurrent(day, eventStart) && isEndAfterCurrent(day, eventEnd)) { arrow.setText("\u2194");// the event goes before and after } else if ((isStartBeforeCurrent(day, eventStart))) { arrow.setText("\u2190"); } else if (isEndAfterCurrent(day, eventEnd)) { time.setText(simpleTime(mDisplayable.getStart())); arrow.setText("\u2192"); } else { time.setText(simpleTime(mDisplayable.getStart())); } } // Add elements to UI categoryColor.add(arrow); add(categoryColor); add(time); add(name); // Set up click listener addMouseListener(new MouseListener() { @Override public void mouseReleased(MouseEvent e) { parent.dispatchEvent(e); } @Override public void mousePressed(MouseEvent e) { parent.dispatchEvent(e); MainPanel.getInstance().setSelectedDay(currentTime); if (e.getClickCount() > 1) { MainPanel.getInstance().editSelectedDisplayable(mDisplayable); } else { MainPanel.getInstance().updateSelectedDisplayable(mDisplayable); } } @Override public void mouseExited(MouseEvent e) { parent.dispatchEvent(e); } @Override public void mouseEntered(MouseEvent e) { } @Override public void mouseClicked(MouseEvent e) { } }); addMouseMotionListener(new MouseMotionListener() { @Override public void mouseDragged(MouseEvent e) { parent.dispatchEvent(e); } @Override public void mouseMoved(MouseEvent e) { parent.dispatchEvent(e); } }); } /** * Generate small version of the time * * @param when * @return */ public String simpleTime(DateTime when) { String ret; boolean pm = when.getHourOfDay() >= 12; if (when.getHourOfDay() == 0) ret = "12"; else if (when.getHourOfDay() > 12) ret = Integer.toString(when.getHourOfDay() - 12); else ret = Integer.toString(when.getHourOfDay()); if (when.getMinuteOfHour() != 0) { ret += ":"; if (when.getMinuteOfHour() < 10) ret += "0"; ret += Integer.toString(when.getMinuteOfHour()); } if (pm) ret += "p"; return ret; } /** * Generate month item * * @param elt displayable to display * @param selected selected displayable by Main Panel * @param day current date * @return month item */ public static Component generateFrom(Displayable elt, Displayable selected, DateTime day, MonthDay parent) { MonthItem mi = new MonthItem(elt, day, parent); mi.setSelected(elt == selected); return mi; } /** * Get current displayable * * @return the selected displayable */ public Displayable getDisplayable() { return this.mDisplayable; } /** * Sets selected month item in month view * * @param selected whether this is a selected event */ public void setSelected(boolean selected) { if (selected) this.setBackground(Colors.SELECTED_BACKGROUND); else this.setBackground(Colors.TABLE_BACKGROUND); } /** * Check if start date of event is before the specified day * * @param currentDay day to compare event time with * @param eventStart event time * @return boolean determining whether the event start date is before * current day */ private boolean isStartBeforeCurrent(DateTime currentDay, DateTime eventStart) { if (eventStart.getYear() < currentDay.getYear())// if the year is less // than its always true return true; else if (eventStart.getYear() > currentDay.getYear()) return false; else if (eventStart.getDayOfYear() < currentDay.getDayOfYear())// year // is the // same, // so // only // day // matters return true; return false; } /** * Check if end date of event is after the specified day * * @param currentDay day to compare event time with * @param eventEnd event time * @return boolean determining whether the event end date is after current * day */ private boolean isEndAfterCurrent(DateTime currentDay, DateTime eventEnd) { if (eventEnd.getYear() > currentDay.getYear())// if the year is less // than its always true return true; else if (eventEnd.getYear() < currentDay.getYear()) return false; else if (eventEnd.getDayOfYear() > currentDay.getDayOfYear())// year is // the // same, so // only day // matters return true; return false; } }