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org.vafada.swtcalendar.SWTDayChooser Maven / Gradle / Ivy
/*
* SWTDayChooser.java - A day chooser component for SWT
* Author: Mark Bryan Yu
* Modified by: Sergey Prigogin
* swtcalendar.sourceforge.net
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in the
* Software without restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so, subject to the
* following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies
* or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL SIMON TATHAM BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package org.vafada.swtcalendar;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.*;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.*;
import java.text.DateFormatSymbols;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.List;
import java.util.Locale;
/**
*
* This class was taken from swtcalendar.sourceforge.net as it is (see above).
* 3 minor chages in the source are marked with "SPARDAT-Change":
* close after mouse selection
* close after key selection
* set background color to COLOR_LIST_BACKGROUND instead of COLOR_WHITE
*
*/
public class SWTDayChooser extends Composite
implements MouseListener, FocusListener, TraverseListener, KeyListener {
/**
* Style constant for making Sundays red.
*/
public static final int RED_SUNDAY = 1 << 24; // == SWT.EMBEDDED
/**
* Style constant for making Saturdays red.
*/
public static final int RED_SATURDAY = 1 << 28; // == SWT.VIRTUAL
/**
* Style constant for making weekends red.
*/
public static final int RED_WEEKEND = RED_SATURDAY | RED_SUNDAY;
private Label[] dayTitles;
private DayControl[] days;
private int dayOffset;
private Color activeSelectionBackground;
private Color inactiveSelectionBackground;
private Color activeSelectionForeground;
private Color inactiveSelectionForeground;
private Color otherMonthColor;
private Calendar calendar;
private Calendar today;
private Locale locale;
private List listeners;
private int style;
/**
* SPARDAT-Change: remember if user did cancel or not
*/
private boolean canceled = true;
public boolean wasCanceled () {
return canceled;
}
public SWTDayChooser(Composite parent, int style) {
super(parent, style & ~RED_WEEKEND);
this.style = style;
listeners = new ArrayList(3);
/**
* SPARDAT-Change: use COLOR_LIST_BACKGROUND instead of COLOR_WHITE
*/
//setBackground(getDisplay().getSystemColor(SWT.COLOR_WHITE));
setBackground(getDisplay().getSystemColor(SWT.COLOR_LIST_BACKGROUND));
otherMonthColor = new Color(getDisplay(), 128, 128, 128);
activeSelectionBackground = getDisplay().getSystemColor(SWT.COLOR_LIST_SELECTION);
inactiveSelectionBackground = getDisplay().getSystemColor(SWT.COLOR_GRAY);
activeSelectionForeground = getDisplay().getSystemColor(SWT.COLOR_LIST_SELECTION_TEXT);
inactiveSelectionForeground = getForeground();
locale = Locale.getDefault();
GridLayout gridLayout = new GridLayout();
gridLayout.makeColumnsEqualWidth = true;
gridLayout.numColumns = 7;
gridLayout.marginHeight = 0;
gridLayout.marginWidth = 0;
gridLayout.horizontalSpacing = 0;
gridLayout.verticalSpacing = 0;
setLayout(gridLayout);
dayTitles = new Label[7];
for (int i = 0; i < dayTitles.length; i++) {
Label label = new Label(this, SWT.CENTER);
dayTitles[i] = label;
label.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL));
label.addMouseListener(this);
}
{
final Composite spacer = new Composite(this, SWT.NO_FOCUS);
spacer.setBackground(getBackground());
final GridData gridData = new GridData(GridData.FILL_HORIZONTAL);
gridData.heightHint = 2;
gridData.horizontalSpan = 7;
spacer.setLayoutData(gridData);
spacer.setLayout(new GridLayout());
spacer.addMouseListener(this);
}
{
final Label label = new Label(this, SWT.HORIZONTAL | SWT.SEPARATOR);
final GridData gridData = new GridData(GridData.FILL_HORIZONTAL);
gridData.horizontalSpan = 7;
label.setLayoutData(gridData);
}
days = new DayControl[42];
for (int i = 0; i < days.length; i++) {
DayControl day = new DayControl(this);
days[i] = day;
day.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
day.addMouseListener(this);
}
setTabList(new Control[0]);
setFont(parent.getFont());
init();
addMouseListener(this);
addFocusListener(this);
addTraverseListener(this);
addKeyListener(this);
addDisposeListener(new DisposeListener() {
public void widgetDisposed(DisposeEvent event) {
otherMonthColor.dispose();
}
});
}
protected void init() {
calendar = Calendar.getInstance(locale);
calendar.setLenient(true);
today = (Calendar) calendar.clone();
int firstDayOfWeek = calendar.getFirstDayOfWeek();
DateFormatSymbols dateFormatSymbols = new DateFormatSymbols(locale);
String[] dayNames = dateFormatSymbols.getShortWeekdays();
int minLength = Integer.MAX_VALUE;
for (int i = 0; i < dayNames.length; i++) {
int len = dayNames[i].length();
if (len > 0 && len < minLength) {
minLength = len;
}
}
if (minLength > 2) {
for (int i = 0; i < dayNames.length; i++) {
if (dayNames[i].length() > 0) {
//as suggested by yunjie liu, Because in Chinese the dayNames display as *** ,but only the third word are the keywords.
if (locale.equals(Locale.CHINA)) {
if (dayNames[i].length() > 2) {
dayNames[i] = dayNames[i].substring(2, 3);
}
}else {
if (dayNames[i].length() > 0) {
dayNames[i] = dayNames[i].substring(0, 1);
}
}
}
}
}
int d = firstDayOfWeek;
for (int i = 0; i < dayTitles.length; i++) {
Label label = dayTitles[i];
label.setText(dayNames[d]);
label.setBackground(getBackground());
if (d == Calendar.SUNDAY && (style & RED_SUNDAY) != 0 ||
d == Calendar.SATURDAY && (style & RED_SATURDAY) != 0) {
label.setForeground(getDisplay().getSystemColor(SWT.COLOR_DARK_RED));
} else {
label.setForeground(getForeground());
}
d++;
if (d > dayTitles.length) {
d -= dayTitles.length;
}
}
drawDays();
}
protected void drawDays() {
calendar.get(Calendar.DAY_OF_YEAR); // Force calendar update
Calendar cal = (Calendar) calendar.clone();
int firstDayOfWeek = cal.getFirstDayOfWeek();
cal.set(Calendar.DAY_OF_MONTH, 1);
dayOffset = firstDayOfWeek - cal.get(Calendar.DAY_OF_WEEK);
if (dayOffset >= 0) {
dayOffset -= 7;
}
cal.add(Calendar.DAY_OF_MONTH, dayOffset);
Color foregroundColor = getForeground();
for (int i = 0; i < days.length; cal.add(Calendar.DAY_OF_MONTH, 1)) {
DayControl dayControl = days[i++];
dayControl.setText(Integer.toString(cal.get(Calendar.DAY_OF_MONTH)));
if (isSameDay(cal, today)) {
dayControl.setBorderColor(getDisplay().getSystemColor(SWT.COLOR_BLACK));
} else {
dayControl.setBorderColor(getBackground());
}
if (isSameMonth(cal, calendar)) {
int d = cal.get(Calendar.DAY_OF_WEEK);
if (d == Calendar.SUNDAY && (style & RED_SUNDAY) != 0 ||
d == Calendar.SATURDAY && (style & RED_SATURDAY) != 0) {
dayControl.setForeground(getDisplay().getSystemColor(SWT.COLOR_DARK_RED));
} else {
dayControl.setForeground(foregroundColor);
}
} else {
dayControl.setForeground(otherMonthColor);
}
if (isSameDay(cal, calendar)) {
dayControl.setBackground(getSelectionBackgroundColor());
dayControl.setForeground(getSelectionForegroundColor());
} else {
dayControl.setBackground(getBackground());
}
}
}
private static boolean isSameDay(Calendar cal1, Calendar cal2) {
return cal1.get(Calendar.DAY_OF_YEAR) == cal2.get(Calendar.DAY_OF_YEAR) &&
cal1.get(Calendar.YEAR) == cal2.get(Calendar.YEAR);
}
private static boolean isSameMonth(Calendar cal1, Calendar cal2) {
return cal1.get(Calendar.MONTH) == cal2.get(Calendar.MONTH) &&
cal1.get(Calendar.YEAR) == cal2.get(Calendar.YEAR);
}
public void setMonth(int month) {
calendar.set(Calendar.MONTH, month);
drawDays();
dateChanged();
}
public void setYear(int year) {
calendar.set(Calendar.YEAR, year);
drawDays();
dateChanged();
}
public void setCalendar(Calendar cal) {
calendar = (Calendar) cal.clone();
calendar.setLenient(true);
drawDays();
dateChanged();
}
/* (non-Javadoc)
* @see org.eclipse.swt.events.MouseListener#mouseDown(org.eclipse.swt.events.MouseEvent)
*/
public void mouseDown(MouseEvent event) {
if (event.button == 1) { // Left click
setFocus();
if (event.widget instanceof DayControl) {
int index = findDay(event.widget);
selectDay(index + 1 + dayOffset);
}
}
}
/* (non-Javadoc)
* @see org.eclipse.swt.events.MouseListener#mouseDoubleClick(org.eclipse.swt.events.MouseEvent)
*/
public void mouseDoubleClick(MouseEvent event) {
}
/* (non-Javadoc)
* @see org.eclipse.swt.events.MouseListener#mouseUp(org.eclipse.swt.events.MouseEvent)
*/
public void mouseUp(MouseEvent event) {
/**
* SPARDAT-Change: Close Shell after selection
*/
canceled = false;
getShell().close();
}
/* (non-Javadoc)
* @see org.eclipse.swt.events.FocusListener#focusGained(org.eclipse.swt.events.FocusEvent)
*/
public void focusGained(FocusEvent event) {
DayControl selectedDay = getSelectedDayControl();
selectedDay.setBackground(getSelectionBackgroundColor());
selectedDay.setForeground(getSelectionForegroundColor());
}
/* (non-Javadoc)
* @see org.eclipse.swt.events.FocusListener#focusLost(org.eclipse.swt.events.FocusEvent)
*/
public void focusLost(FocusEvent event) {
DayControl selectedDay = getSelectedDayControl();
selectedDay.setBackground(getSelectionBackgroundColor());
selectedDay.setForeground(getSelectionForegroundColor());
}
/* (non-Javadoc)
* @see org.eclipse.swt.events.TraverseListener#keyTraversed(org.eclipse.swt.events.TraverseEvent)
*/
public void keyTraversed(TraverseEvent event) {
switch (event.detail) {
case SWT.TRAVERSE_ARROW_PREVIOUS:
case SWT.TRAVERSE_ARROW_NEXT:
case SWT.TRAVERSE_PAGE_PREVIOUS:
case SWT.TRAVERSE_PAGE_NEXT:
event.doit = false;
break;
case SWT.TRAVERSE_TAB_NEXT:
case SWT.TRAVERSE_TAB_PREVIOUS:
event.doit = true;
}
}
/* (non-Javadoc)
* @see org.eclipse.swt.events.KeyListener#keyPressed(org.eclipse.swt.events.KeyEvent)
*/
public void keyPressed(KeyEvent event) {
switch (event.keyCode) {
case SWT.ARROW_LEFT:
selectDay(calendar.get(Calendar.DAY_OF_MONTH) - 1);
break;
case SWT.ARROW_RIGHT:
selectDay(calendar.get(Calendar.DAY_OF_MONTH) + 1);
break;
case SWT.ARROW_UP:
selectDay(calendar.get(Calendar.DAY_OF_MONTH) - 7);
break;
case SWT.ARROW_DOWN:
selectDay(calendar.get(Calendar.DAY_OF_MONTH) + 7);
break;
case SWT.PAGE_UP:
setMonth(calendar.get(Calendar.MONTH) - 1);
break;
case SWT.PAGE_DOWN:
setMonth(calendar.get(Calendar.MONTH) + 1);
break;
/**
* SPARDAT-Change: Close Shell after Return
*/
case SWT.CR:
canceled = false;
getShell().close();
break;
}
}
/* (non-Javadoc)
* @see org.eclipse.swt.events.KeyListener#keyReleased(org.eclipse.swt.events.KeyEvent)
*/
public void keyReleased(KeyEvent event) {
}
/**
* Finds position of a control in days array.
*
* @param dayControl a control to find.
* @return an index of dayControl in days array, or -1 if not found.
*/
private int findDay(Widget dayControl) {
for (int i = 0; i < days.length; i++) {
if (days[i] == dayControl) {
return i;
}
}
return -1;
}
private void selectDay(int day) {
calendar.get(Calendar.DAY_OF_YEAR); // Force calendar update
if (day >= calendar.getActualMinimum(Calendar.DAY_OF_MONTH) && day <= calendar.getActualMaximum(Calendar.DAY_OF_MONTH)) {
int dayOfWeek = calendar.get(Calendar.DAY_OF_WEEK);
// Stay on the same month.
DayControl selectedDay = getSelectedDayControl();
selectedDay.setBackground(getBackground());
if (dayOfWeek == Calendar.SUNDAY) {
selectedDay.setForeground(getDisplay().getSystemColor(SWT.COLOR_DARK_RED));
} else {
selectedDay.setForeground(getForeground());
}
calendar.set(Calendar.DAY_OF_MONTH, day);
selectedDay = getSelectedDayControl();
selectedDay.setBackground(getSelectionBackgroundColor());
selectedDay.setForeground(getSelectionForegroundColor());
} else {
// Move to a different month.
calendar.set(Calendar.DAY_OF_MONTH, day);
drawDays();
}
dateChanged();
}
private DayControl getSelectedDayControl() {
return days[calendar.get(Calendar.DAY_OF_MONTH) - 1 - dayOffset];
}
private Color getSelectionBackgroundColor() {
return isFocusControl() ? activeSelectionBackground : inactiveSelectionBackground;
}
private Color getSelectionForegroundColor() {
return isFocusControl() ? activeSelectionForeground : inactiveSelectionForeground;
}
/* (non-Javadoc)
* @see org.eclipse.swt.widgets.Control#isFocusControl()
*/
public boolean isFocusControl() {
for (Control control = getDisplay().getFocusControl(); control != null; control = control.getParent()) {
if (control == this) {
return true;
}
}
return false;
}
public void addSWTCalendarListener(SWTCalendarListener listener) {
this.listeners.add(listener);
}
public void removeSWTCalendarListener(SWTCalendarListener listener) {
this.listeners.remove(listener);
}
private void dateChanged() {
if (!listeners.isEmpty()) {
SWTCalendarListener[] listenersArray = new SWTCalendarListener[listeners.size()];
listeners.toArray(listenersArray);
for (int i = 0; i < listenersArray.length; i++) {
Event event = new Event();
event.widget = this;
event.display = getDisplay();
event.time = (int) System.currentTimeMillis();
event.data = calendar.clone();
listenersArray[i].dateChanged(new SWTCalendarEvent(event));
}
}
}
public Calendar getCalendar() {
return (Calendar) calendar.clone();
}
public void setLocale(Locale locale) {
this.locale = locale;
init();
}
/* (non-Javadoc)
* @see org.eclipse.swt.widgets.Control#setFont(org.eclipse.swt.graphics.Font)
*/
public void setFont(Font font) {
super.setFont(font);
for (int i = 0; i < dayTitles.length; i++) {
dayTitles[i].setFont(font);
}
for (int i = 0; i < days.length; i++) {
days[i].setFont(font);
}
}
static private class DayControl extends Composite implements Listener {
private Composite filler;
private Label label;
public DayControl(Composite parent) {
super(parent, SWT.NO_FOCUS);
{
final GridLayout gridLayout = new GridLayout();
gridLayout.marginWidth = 1;
gridLayout.marginHeight = 1;
setLayout(gridLayout);
}
filler = new Composite(this, SWT.NO_FOCUS);
filler.setLayoutData(new GridData(GridData.FILL_BOTH));
{
final GridLayout gridLayout = new GridLayout();
gridLayout.marginWidth = 2;
gridLayout.marginHeight = 0;
filler.setLayout(gridLayout);
}
filler.addListener(SWT.MouseDown, this);
filler.addListener(SWT.MouseUp, this);
filler.addListener(SWT.MouseDoubleClick, this);
label = new DayLabel(filler, SWT.RIGHT | SWT.NO_FOCUS);
label.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_CENTER));
label.addListener(SWT.MouseDown, this);
label.addListener(SWT.MouseUp, this);
label.addListener(SWT.MouseDoubleClick, this);
setBorderColor(parent.getBackground());
setBackground(parent.getBackground());
setFont(parent.getFont());
}
public void setText(String text) {
label.setText(text);
}
public String getText() {
return label.getText();
}
/* (non-Javadoc)
* @see org.eclipse.swt.widgets.Control#setFont(org.eclipse.swt.graphics.Font)
*/
public void setFont(Font font) {
super.setFont(font);
filler.setFont(font);
label.setFont(font);
}
/* (non-Javadoc)
* @see org.eclipse.swt.widgets.Control#setBackground(org.eclipse.swt.graphics.Color)
*/
public void setBackground(Color color) {
filler.setBackground(color);
label.setBackground(color);
}
/* (non-Javadoc)
* @see org.eclipse.swt.widgets.Control#setForeground(org.eclipse.swt.graphics.Color)
*/
public void setForeground(Color color) {
label.setForeground(color);
}
public void setBorderColor(Color color) {
super.setBackground(color);
}
/* (non-Javadoc)
* @see org.eclipse.swt.widgets.Listener#handleEvent(org.eclipse.swt.widgets.Event)
*/
public void handleEvent(Event event) {
notifyListeners(event.type, event);
}
}
static private class DayLabel extends Label {
public DayLabel(Composite parent, int style) {
super(parent, style);
}
/* (non-Javadoc)
* @see org.eclipse.swt.widgets.Control#computeSize(int, int, boolean)
*/
public Point computeSize(int wHint, int hHint, boolean changed) {
if (wHint == SWT.DEFAULT) {
GC gc = new GC(this);
wHint = gc.textExtent("22").x; //$NON-NLS-1$
gc.dispose();
}
return super.computeSize(wHint, hHint, changed);
}
/* (non-Javadoc)
* @see org.eclipse.swt.widgets.Widget#checkSubclass()
*/
protected void checkSubclass() {
}
}
}
