javax.microedition.lcdui.DateField Maven / Gradle / Ivy
/*
* MicroEmulator
* Copyright (C) 2001 Bartek Teodorczyk
* Copyright (C) 2005 Andres Navarro
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package javax.microedition.lcdui;
import java.util.TimeZone;
import java.util.Calendar;
import java.util.Date;
public class DateField extends Item
{
public static final int DATE = 1;
public static final int TIME = 2;
public static final int DATE_TIME = 3;
Date date;
Date time;
String label;
int mode;
ChoiceGroup dateTime;
DateCanvas dateCanvas;
TimeCanvas timeCanvas;
static Command saveCommand = new Command("Save", Command.OK, 0);
static Command backCommand = new Command("Back", Command.BACK, 0);
CommandListener dateTimeListener = new CommandListener()
{
public void commandAction(Command c, Displayable d)
{
if (c == backCommand) {
getOwner().currentDisplay.setCurrent(owner);
} else if (c == saveCommand) {
Calendar from = Calendar.getInstance();
Calendar to = Calendar.getInstance();
to.setTime(new Date(0L));
if (d == dateCanvas) {
from.setTime(dateCanvas.getTime());
to.set(Calendar.DAY_OF_MONTH, from.get(Calendar.DAY_OF_MONTH));
to.set(Calendar.MONTH, from.get(Calendar.MONTH));
to.set(Calendar.YEAR, from.get(Calendar.YEAR));
date = to.getTime();
} else {
from.setTime(timeCanvas.getTime());
to.set(Calendar.HOUR_OF_DAY, from.get(Calendar.HOUR_OF_DAY));
to.set(Calendar.MINUTE, from.get(Calendar.MINUTE));
time = to.getTime();
}
updateDateTimeString();
getOwner().currentDisplay.setCurrent(owner);
}
}
};
public DateField(String label, int mode)
{
this(label, mode, null);
}
public DateField(String label, int mode, TimeZone timeZone)
{
// why not super(label)??
super(null);
this.label = label;
// TODO this is ignoring TimeZone!!
setInputMode(mode);
dateCanvas = new DateCanvas();
dateCanvas.addCommand(saveCommand);
dateCanvas.addCommand(backCommand);
dateCanvas.setCommandListener(dateTimeListener);
timeCanvas = new TimeCanvas();
timeCanvas.addCommand(saveCommand);
timeCanvas.addCommand(backCommand);
timeCanvas.setCommandListener(dateTimeListener);
}
public Date getDate()
{
return date;
}
public void setDate(Date date)
{
this.date = date;
// TODO change the Canvas!!
updateDateTimeString();
}
public int getInputMode()
{
return mode;
}
public void setInputMode(int mode)
{
if (mode < 1 || mode > 3) {
throw new IllegalArgumentException();
}
this.mode = mode;
// ChoiceGroup can't be IMPLICIT so we have to cheat
// a little DON'T TRY THIS AT HOME!!
//dateTime = new ChoiceGroup(label, Choice.IMPLICIT);
dateTime = new ChoiceGroup(label, Choice.EXCLUSIVE);
dateTime.choiceType = Choice.IMPLICIT;
if ((mode & DATE) != 0) {
dateTime.append("[date]", null);
}
if ((mode & TIME) != 0) {
dateTime.append("[time]", null);
}
}
boolean isFocusable()
{
return true;
}
int getHeight()
{
return super.getHeight() + dateTime.getHeight();
}
int paint(Graphics g)
{
super.paintContent(g);
g.translate(0, super.getHeight());
dateTime.paint(g);
g.translate(0, -super.getHeight());
return getHeight();
}
void setFocus(boolean state)
{
super.setFocus(state);
dateTime.setFocus(state);
}
boolean select()
{
dateTime.select();
if (dateTime.getSelectedIndex() == 0 && (mode & DATE) != 0) {
if (date != null) {
dateCanvas.setTime(date);
} else {
dateCanvas.setTime(new Date());
}
getOwner().currentDisplay.setCurrent(dateCanvas);
} else {
if (time != null) {
timeCanvas.setTime(time);
} else {
Calendar cal = Calendar.getInstance();
cal.set(Calendar.YEAR, 1970);
cal.set(Calendar.MONTH, Calendar.JANUARY);
cal.set(Calendar.DAY_OF_MONTH, 1);
cal.set(Calendar.HOUR_OF_DAY, 12);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.SECOND, 0);
timeCanvas.setTime(cal.getTime());
}
getOwner().currentDisplay.setCurrent(timeCanvas);
}
return true;
}
int traverse(int gameKeyCode, int top, int bottom, boolean action)
{
return dateTime.traverse(gameKeyCode, top, bottom, action);
}
private String formatDate() {
if (date == null)
return "[date]";
Calendar cal = Calendar.getInstance();
cal.setTime(date);
int day = cal.get(Calendar.DAY_OF_MONTH);
int month = cal.get(Calendar.MONTH) + 1;
int year = cal.get(Calendar.YEAR);
return Integer.toString(day) + "-" + month + "-" + year;
}
private String formatTime() {
if (time == null)
return "[time]";
Calendar cal = Calendar.getInstance();
cal.setTime(time);
int hours = cal.get(Calendar.HOUR_OF_DAY);
int minutes = cal.get(Calendar.MINUTE);
return Integer.toString(hours) + ":" + (minutes < 10? "0" : "") + minutes;
}
void updateDateTimeString()
{
if ((mode & DATE) != 0) {
dateTime.set(0, formatDate(), null);
}
if ((mode & TIME) != 0) {
dateTime.set((((mode & DATE) != 0)? 1 : 0), formatTime(), null);
}
}
}
class DateCanvas extends Canvas {
Calendar cal;
private int month, day, year;
private int selected;
public DateCanvas() {
cal = Calendar.getInstance();
}
public Date getTime() {
cal.set(Calendar.YEAR, year);
cal.set(Calendar.MONTH, month);
cal.set(Calendar.DAY_OF_MONTH, day);
return cal.getTime();
}
public void setTime(Date time) {
this.cal.setTime(time);
year = cal.get(Calendar.YEAR);
month = cal.get(Calendar.MONTH);
day = cal.get(Calendar.DAY_OF_MONTH);
repaint();
}
public void paint(Graphics g) {
int w = this.getWidth();
int h = this.getHeight();
g.setColor(0xffffff);
g.fillRect(0, 0, w, h);
Font font = Font.getFont(Font.FACE_MONOSPACE, Font.STYLE_BOLD,
Font.SIZE_MEDIUM);
String dayStr = Integer.toString(day);
if (day < 10)
dayStr = "0" + dayStr;
String monthStr = Integer.toString(month+1);
if (month+1 < 10)
monthStr = "0" + monthStr;
String yearStr = Integer.toString(year);
String delimiterStr = "/";
int y = (h - font.getHeight()) >>> 1;
int dayW = font.stringWidth(dayStr);
int monthW = font.stringWidth(monthStr);
int yearW = font.stringWidth(yearStr);
int delimiterW = font.stringWidth(delimiterStr);
int stringWidth = dayW + monthW + yearW + (delimiterW << 1);
int offset = (w - stringWidth) >>> 1;
int dOff = offset;
int del1Off = dOff + dayW;
int mOff = del1Off + delimiterW;
int del2Off = mOff + monthW;
int yOff = del2Off + delimiterW;
g.setColor(0);
g.setFont(font);
// draw the delimiter
g.drawString(delimiterStr, del1Off, y, Graphics.LEFT | Graphics.TOP);
g.drawString(delimiterStr, del2Off, y, Graphics.LEFT | Graphics.TOP);
// draw the rectangles
// colors
int colorR, colorT;
if (selected == 0) {
colorR = 0x000000;
colorT = 0xffffff;
} else {
colorR = 0xffffff;
colorT = 0x000000;
}
g.setColor(colorR);
g.fillRect(dOff, y, dayW, font.getHeight());
g.setColor(colorT);
g.drawString(dayStr, dOff, y, Graphics.LEFT | Graphics.TOP);
if (selected == 1) {
colorR = 0x000000;
colorT = 0xffffff;
} else {
colorR = 0xffffff;
colorT = 0x000000;
}
g.setColor(colorR);
g.fillRect(mOff, y, monthW, font.getHeight());
g.setColor(colorT);
g.drawString(monthStr, mOff, y, Graphics.LEFT | Graphics.TOP);
if (selected == 2) {
colorR = 0x000000;
colorT = 0xffffff;
} else {
colorR = 0xffffff;
colorT = 0x000000;
}
g.setColor(colorR);
g.fillRect(yOff, y, yearW, font.getHeight());
g.setColor(colorT);
g.drawString(yearStr, yOff, y, Graphics.LEFT | Graphics.TOP);
}
public synchronized void keyPressed(int keycode) {
int k = getGameAction(keycode);
if (k == Canvas.LEFT && selected > 0) {
selected--;
repaint();
} else if (k == Canvas.RIGHT && selected < 2) {
selected++;
repaint();
} else if (k == Canvas.UP) {
Calendar cal = Calendar.getInstance();
switch (selected) {
case 0: // day
cal.set(Calendar.YEAR, year);
cal.set(Calendar.MONTH, month);
cal.set(Calendar.DAY_OF_MONTH, day);
cal.set(Calendar.HOUR_OF_DAY, 1);
cal.setTime(cal.getTime());
cal.add(Calendar.DAY_OF_MONTH, 1);
if(cal.get(Calendar.MONTH) == month)
day++;
else
day = 1;
break;
case 1: // month
if (month == Calendar.DECEMBER)
month = Calendar.JANUARY;
else
month++;
cal.set(Calendar.YEAR, year);
cal.set(Calendar.MONTH, month);
cal.set(Calendar.DAY_OF_MONTH, 28);
cal.set(Calendar.HOUR_OF_DAY, 1);
cal.setTime(cal.getTime());
cal.add(Calendar.DAY_OF_MONTH, 4);
int daysInMonth = 28+(4-cal.get(Calendar.DAY_OF_MONTH));
if (day > daysInMonth)
day = daysInMonth;
break;
case 2: // year
// arbitrary limit
if (year < 5000) {
year++;
// here i simply use the fact that there
// were nor will be two lenient years in
// a row
if (day == 29 && month == Calendar.FEBRUARY)
day = 28;
}
break;
}
repaint();
} else if (k == Canvas.DOWN) {
Calendar cal = Calendar.getInstance();
switch (selected) {
case 0: // day
if(day > 1)
day--;
else {
cal.set(Calendar.YEAR, year);
cal.set(Calendar.MONTH, month);
cal.set(Calendar.DAY_OF_MONTH, 28);
cal.set(Calendar.HOUR_OF_DAY, 1);
cal.setTime(cal.getTime());
cal.add(Calendar.DAY_OF_MONTH, 4);
int daysInMonth = 28+(4-cal.get(Calendar.DAY_OF_MONTH));
day = daysInMonth;
}
break;
case 1: // month
if (month == Calendar.JANUARY)
month = Calendar.DECEMBER;
else
month--;
cal.set(Calendar.YEAR, year);
cal.set(Calendar.MONTH, month);
cal.set(Calendar.DAY_OF_MONTH, 28);
cal.set(Calendar.HOUR_OF_DAY, 1);
cal.setTime(cal.getTime());
cal.add(Calendar.DAY_OF_MONTH, 1);
int daysInMonth = 28+(4-cal.get(Calendar.DAY_OF_MONTH));
if (day > daysInMonth)
day = daysInMonth;
break;
case 2: // year
// arbitrary limit
if (year > 1000) {
year--;
// here i simply use the fact that there
// were nor will be two lenient years in
// a row
if (day == 29 && month == Calendar.FEBRUARY)
day = 28;
}
break;
}
repaint();
}
}
}
class TimeCanvas extends Canvas {
Calendar cal;
private int minutes, hours;
private int selected;
public TimeCanvas() {
cal = Calendar.getInstance();
}
public Date getTime() {
this.cal.set(Calendar.HOUR_OF_DAY, hours);
this.cal.set(Calendar.MINUTE, minutes);
return cal.getTime();
}
public void setTime(Date time) {
this.cal.setTime(time);
this.hours = cal.get(Calendar.HOUR_OF_DAY);
this.minutes = cal.get(Calendar.MINUTE);
repaint();
}
public void paint(Graphics g) {
int w = this.getWidth();
int h = this.getHeight();
g.setColor(0xffffff);
g.fillRect(0, 0, w, h);
Font font = Font.getFont(Font.FACE_MONOSPACE, Font.STYLE_BOLD,
Font.SIZE_MEDIUM);
String hoursStr = Integer.toString(hours);
if (hours < 10)
hoursStr = "0" + hoursStr;
String minutesStr = Integer.toString(minutes);
if (minutes < 10)
minutesStr = "0" + minutesStr;
String delimiterStr = " : ";
int y = (h - font.getHeight()) >>> 1;
int hoursW = font.stringWidth(hoursStr);
int minutesW = font.stringWidth(minutesStr);
int delimiterW = font.stringWidth(delimiterStr);
int stringWidth = hoursW + minutesW + delimiterW;
int offset = (w - stringWidth) >>> 1;
int hOff = offset;
int dOff = offset + hoursW;
int mOff = dOff + delimiterW;
g.setColor(0);
g.setFont(font);
// draw the delimiter
g.drawString(delimiterStr, dOff, y, Graphics.LEFT | Graphics.TOP);
// draw the rectangles
// colors
int colorR, colorT;
if (selected == 0) {
colorR = 0x000000;
colorT = 0xffffff;
} else {
colorR = 0xffffff;
colorT = 0x000000;
}
g.setColor(colorR);
g.fillRect(hOff, y, hoursW, font.getHeight());
g.setColor(colorT);
g.drawString(hoursStr, hOff, y, Graphics.LEFT | Graphics.TOP);
if (selected == 1) {
colorR = 0x000000;
colorT = 0xffffff;
} else {
colorR = 0xffffff;
colorT = 0x000000;
}
g.setColor(colorR);
g.fillRect(mOff, y, minutesW, font.getHeight());
g.setColor(colorT);
g.drawString(minutesStr, mOff, y, Graphics.LEFT | Graphics.TOP);
}
public synchronized void keyPressed(int keycode) {
int k = getGameAction(keycode);
if (k == Canvas.LEFT && selected > 0) {
selected--;
repaint();
} else if (k == Canvas.RIGHT && selected < 1) {
selected++;
repaint();
} else if (k == Canvas.UP) {
switch (selected) {
case 0: // hours
hours++;
if (hours > 23)
hours = 0;
break;
case 1: // minutes
minutes++;
if (minutes > 59)
minutes = 0;
break;
}
repaint();
} else if (k == Canvas.DOWN) {
switch (selected) {
case 0: // hours
hours--;
if (hours < 0)
hours = 23;
break;
case 1: // minutes
minutes--;
if (minutes < 0)
minutes = 59;
break;
}
repaint();
}
}
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