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package com.github.lgooddatepicker.components;
import com.github.lgooddatepicker.optionalusertools.CalendarBorderProperties;
import com.privatejgoodies.forms.layout.ColumnSpec;
import com.privatejgoodies.forms.layout.ConstantSize;
import com.privatejgoodies.forms.layout.FormLayout;
import java.awt.Color;
import java.awt.Font;
import java.awt.font.TextAttribute;
import java.util.ArrayList;
import java.util.Locale;
import java.util.Map;
import javax.swing.JTextField;
import com.github.lgooddatepicker.zinternaltools.InternalUtilities;
import com.github.lgooddatepicker.zinternaltools.ExtraDateStrings;
import com.github.lgooddatepicker.zinternaltools.TranslationSource;
import javax.swing.border.Border;
import com.github.lgooddatepicker.optionalusertools.DateVetoPolicy;
import com.github.lgooddatepicker.optionalusertools.DateHighlightPolicy;
import com.github.lgooddatepicker.optionalusertools.DateInterval;
import com.github.lgooddatepicker.optionalusertools.PickerUtilities;
import com.github.lgooddatepicker.zinternaltools.DateVetoPolicyMinimumMaximumDate;
import com.github.lgooddatepicker.zinternaltools.InternalConstants;
import java.awt.Point;
import javax.swing.border.CompoundBorder;
import javax.swing.border.EmptyBorder;
import javax.swing.border.MatteBorder;
import java.time.DayOfWeek;
import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
import java.time.format.DateTimeFormatterBuilder;
import java.time.format.FormatStyle;
import java.time.temporal.WeekFields;
import java.util.HashMap;
import javax.swing.JButton;
import javax.swing.JLabel;
/**
* DatePickerSettings, This holds all the settings that can be customized for a DatePicker (or an
* independent CalendarPanel).
*
* A DatePickerSettings instance may be (optionally) created, customized, and passed to the date
* picker constructor. If no settings instance is supplied when a date picker is constructed, then a
* settings instance with default settings is automatically generated and used by the date picker
* class.
*
* Each and all of the setting fields are set to a default value when a DatePickerSettings object is
* constructed. This means that the programmer does not need to overwrite all (or any) of the
* available settings to use this class. They only need to change any particular settings that they
* wish to customize.
*/
public class DatePickerSettings {
/**
* DateArea, These enumerations represent areas of the components whose color can be changed.
* These values are used with the setColor() function, to set the color of various areas of the
* DatePicker or the CalendarPanel. The default color for each area is also defined here.
*
* Note: The text color of disabled (vetoed) dates in the calendar will always be grey (cannot
* be modified). This seems to be enforced by the swing setEnabled() function.
*/
public enum DateArea {
BackgroundClearLabel(new Color(240, 240, 240)),
BackgroundMonthAndYearMenuLabels(new Color(240, 240, 240)),
BackgroundMonthAndYearNavigationButtons(new JButton().getBackground()),
BackgroundOverallCalendarPanel(new Color(240, 240, 240)),
BackgroundTodayLabel(new Color(240, 240, 240)),
BackgroundTopLeftLabelAboveWeekNumbers(new Color(184, 207, 229)),
CalendarBackgroundNormalDates(Color.white),
CalendarBackgroundVetoedDates(Color.lightGray),
CalendarDefaultBackgroundHighlightedDates(Color.green),
CalendarDefaultTextHighlightedDates(Color.black),
CalendarTextNormalDates(Color.black),
CalendarTextWeekdays(Color.black),
CalendarTextWeekNumbers(Color.black),
TextClearLabel(new JLabel().getForeground()),
TextMonthAndYearMenuLabels(new JLabel().getForeground()),
TextMonthAndYearNavigationButtons(new JButton().getForeground()),
TextTodayLabel(new JLabel().getForeground()),
TextFieldBackgroundDisallowedEmptyDate(Color.pink),
TextFieldBackgroundInvalidDate(Color.white),
TextFieldBackgroundValidDate(Color.white),
TextFieldBackgroundVetoedDate(Color.white),
DatePickerTextInvalidDate(Color.red),
DatePickerTextValidDate(Color.black),
DatePickerTextVetoedDate(Color.black);
DateArea(Color defaultColor) {
this.defaultColor = defaultColor;
}
public Color defaultColor;
}
/**
* allowEmptyDates, This indicates whether or not empty dates are allowed in the date picker.
* Empty dates are also called "null dates". The default value is true, which allows empty
* dates. If empty dates are not allowed, but DatePickerSettings.initialDate is left set to
* null, then the initial date will be set to today's date.
*/
private boolean allowEmptyDates = true;
/**
* allowKeyboardEditing, This indicates whether or not keyboard editing is allowed for this date
* picker. If this is true, then dates can be entered into the date picker either by using the
* keyboard or the mouse. If this is false, then dates can only be selected by using the mouse.
* The default value is true. It is generally recommended to leave this setting as "true".
*
* Accessibility Impact: Disallowing the use of the keyboard, and requiring the use of the
* mouse, could impact the accessibility of your program for disabled persons.
*
* Note: This setting does not impact the automatic enforcement of valid or vetoed dates. To
* learn about the automatic date validation and enforcement for keyboard entered text, see the
* javadocs for the DatePicker class.
*/
private boolean allowKeyboardEditing = true;
/**
* borderCalendarPopup, This is the (outside) border for the calendar popup window. If this is
* null, a default border will be provided by the CustomPopup class. The default value is null.
*/
private Border borderCalendarPopup = null;
/**
* borderPropertiesList, This contains the list of border properties objects that specifies the
* colors and thicknesses of the borders in the CalendarPanel. By default, a default set of
* border properties is stored in the borderPropertiesList.
*
* Passing in "null" when setting this property will restore the default border properties. If
* you don't want the default border properties but wish to truly "clear" the border properties
* list, you could pass in an empty ArrayList.
*
* To modify the calendar borders (including individual border colors, thickness, or
* visibility), you can supply your own ArrayList of border properties. Border properties
* objects are applied in the order that they appear in the ArrayList. To learn how to set the
* CalendarBorderProperties objects, see the CalendarBorderProperties class javadocs.
*
* The default border properties have a one pixel blue border around the date labels, and two
* vertical light blue borders near the weekday labels (which match the color of the weekday
* labels). The outer top horizontal border and the outer left vertical border are invisible by
* default.
*
* The default border properties also include borders above and below the "week numbers" column
* which match the color of the week numbers labels. (However, these borders are only displayed
* when the week numbers are displayed.)
*
* Whenever the border properties list is applied, the borders are first "cleared" by setting
* all borders to the following settings: Invisible, and black color. This is true of both the
* default border properties and any programmer supplied border properties.
*
* Note: If weekNumbersDisplayed is set to false, then the borders located in the week number
* columns (Columns 1 and 2) will always be hidden.
*
* This variable will never be null.
*/
private ArrayList borderPropertiesList;
/**
* colorBackgroundWeekdayLabels, This is the calendar background color for the weekday labels.
* The default color is a medium sky blue.
*/
private Color colorBackgroundWeekdayLabels = new Color(184, 207, 229);
/**
* colorBackgroundWeekNumberLabels, This is the calendar background color for the week number
* labels. The default color is a medium sky blue.
*/
private Color colorBackgroundWeekNumberLabels = new Color(184, 207, 229);
/**
* colors, This hash map holds the current color settings for different areas of the DatePicker
* or CalendarPanel. These colors can be set with the setColor() function, or retrieved with the
* getColor() function. By default, this map is populated with a set of default colors. The
* default colors for each area are defined the "Area" enums.
*/
private HashMap colors;
/**
* enableMonthMenu, This determines whether the month popup menu is enabled or disabled. (Note:
* The month label is located in the header area of the calendar panel.) If this is true, then
* the month label will give a visual indication of any "mouse over" events, and the month menu
* will open when the month label is clicked. If this is false, then the month label will not
* indicate mouse over events, and the month menu can not be opened. The default value for this
* setting is true.
*
* Note: It is generally recommended to leave the month menu enabled. Disabling this menu can
* negatively impact calendar usability. When the month menu is disabled, the user may have to
* press the month navigation button many times to reach a desired month.
*/
private boolean enableMonthMenu = true;
/**
* enableYearMenu, This determines whether the year popup menu is enabled or disabled. (Note:
* The year label is located in the header area of the calendar panel.) If this is true, then
* the year label will give a visual indication of any "mouse over" events, and the year menu
* will open when the year label is clicked. If this is false, then the year label will not
* indicate mouse over events, and the year menu can not be opened. The default value for this
* setting is true.
*
* Note: It is generally recommended to leave the year menu enabled. Disabling this menu can
* negatively impact calendar usability. When the year menu is disabled, it may become difficult
* or effectively impossible for the user to navigate to years that are far into the past or the
* future.
*/
private boolean enableYearMenu = true;
/**
* firstDayOfWeek, This holds the day of the week that will be displayed in the far left column
* of the CalendarPanel, as the "first day of the week". The default value is generated using
* the locale of the settings instance.
*
* By default, If weekNumbersDisplayed is set to true, then the first day of the week will not
* match the setting. (weekNumbersDisplayed is false by default.) For additional details, see
* the javadocs for the following settings: "weekNumbersDisplayed", and
* "weekNumbersForceFirstDayOfWeekToMatch".
*/
private DayOfWeek firstDayOfWeek;
/**
* fontCalendarDateLabels, This is the text font for the dates in the calendar panel. The
* default font is the normal undecorated font, as provided by the JLabel component.
*/
private Font fontCalendarDateLabels;
/**
* fontCalendarWeekdayLabels, This is the text font for the weekdays in the calendar panel. The
* default font is the normal undecorated font, as provided by the JLabel component.
*/
private Font fontCalendarWeekdayLabels;
/**
* fontCalendarWeekNumberLabels, This is the text font for the week numbers (if they are
* displayed) in the calendar panel. The default font is the normal undecorated font, as
* provided by the JLabel component.
*/
private Font fontCalendarWeekNumberLabels;
/**
* fontClearButton, This is the text font for the clear button. The default font is the normal
* undecorated font, as provided by the JLabel component.
*/
private Font fontClearLabel;
/**
* fontInvalidDate, This is the text field text font for invalid dates. The default font is a
* normal undecorated font. (Note: The color for invalid dates defaults to Color.red. See also:
* setColor() and "DateArea.DatePickerTextInvalidDate".)
*/
private Font fontInvalidDate;
/**
* fontMonthAndYearMenuButtons, This is the text font for the month and year menu buttons. The
* default font is the normal undecorated font, as provided by the JLabel component.
*/
private Font fontMonthAndYearMenuLabels;
/**
* fontMonthAndYearNavigationButtons, This is the text font for the month and year navigation
* buttons. The default font is the normal undecorated font, as provided by the JLabel
* component.
*/
private Font fontMonthAndYearNavigationButtons;
/**
* fontTodayButton, This is the text font for the today button. The default font is the normal
* undecorated font, as provided by the JLabel component.
*/
private Font fontTodayLabel;
/**
* fontValidDate, This is the text field text font for valid dates. The default font is a normal
* undecorated font.
*/
private Font fontValidDate;
/**
* fontVetoedDate, This is the text field text font for vetoed dates. The default font crosses
* out the vetoed date. (Has a strikethrough font attribute.)
*/
private Font fontVetoedDate;
/**
* formatForDatesCommonEra, This holds the default format that is used to display or parse CE
* dates in the date picker. The default value is generated using the locale of the settings
* instance.
*/
private DateTimeFormatter formatForDatesCommonEra;
/**
* formatForDatesBeforeCommonEra, This holds the default format that is used to display or parse
* BCE dates in the date picker. The default value is generated using the locale of the settings
* instance. A DateTimeFormatter can be created from a pattern string with the convenience
* function DateUtilities.createFormatterFromPatternString();
*
* Note: It is important to use the letter "u" (astronomical year) instead of "y" (year of era)
* when creating pattern strings for BCE dates. This is because the DatePicker uses ISO 8601,
* which specifies "Astronomical year numbering". (Additional details: The astronomical year
* "-1" and "1 BC" are not the same thing. Astronomical years are zero-based, and BC dates are
* one-based. Astronomical year "0", is the same year as "1 BC", and astronomical year "-1" is
* the same year as "2 BC", and so forth.)
*/
private DateTimeFormatter formatForDatesBeforeCommonEra;
/**
* formatTodayButton, This format is used to format today's date into a date string, which is
* displayed on the today button. The default value is generated using the locale of the
* settings instance.
*/
private DateTimeFormatter formatForTodayButton;
/**
* formatsForParsing, This holds a list of formats that are used to attempt to parse dates that
* are typed by the user. When parsing a date, these formats are tried in the order that they
* appear in this list. Note that the formatForDatesCommonEra and formatForDatesBeforeCommonEra
* are always tried (in that order) before any other parsing formats. The default values for the
* formatsForParsing are generated using the pickerLocale, using the enum constants in
* java.time.format.FormatStyle.
*/
private ArrayList formatsForParsing;
/**
* gapBeforeButtonPixels, This specifies the desired width for the gap between the date picker
* and the toggle calendar button (in pixels). The default value is null. If this is left at
* null, then the default value is three pixels.
*/
private Integer gapBeforeButtonPixels = null;
/**
* highlightPolicy, If a highlight policy is supplied, it will be used to determine which dates
* should be highlighted in the calendar panel. The highlight policy can also supply tooltip
* text for any highlighted dates. See the demo class for an example of constructing a highlight
* policy. By default, there is no highlight policy. (The default value is null.)
*/
private DateHighlightPolicy highlightPolicy = null;
/**
* isVisibleClearButton, This specifies if the named component should be displayed. Note that
* this setting will have no effect if empty dates are not allowed. If empty dates are not
* allowed, then the clear button will always be hidden.
*/
private boolean isVisibleClearButton = true;
/**
* isVisibleDateTextField, This specifies if the named component should be displayed.
*/
private boolean isVisibleDateTextField = true;
/**
* isVisibleMonthMenuButton, This specifies if the named component should be displayed.
*/
private boolean isVisibleMonthMenuButton = true;
/**
* isVisibleNextMonthButton, This specifies if the named component should be displayed.
*/
private boolean isVisibleNextMonthButton = true;
/**
* isVisibleNextYearButton, This specifies if the named component should be displayed.
*/
private boolean isVisibleNextYearButton = true;
/**
* isVisiblePreviousMonthButton, This specifies if the named component should be displayed.
*/
private boolean isVisiblePreviousMonthButton = true;
/**
* isVisiblePreviousYearButton, This specifies if the named component should be displayed.
*/
private boolean isVisiblePreviousYearButton = true;
/**
* isVisibleTodayButton, This specifies if the named component should be displayed.
*/
private boolean isVisibleTodayButton = true;
/**
* isVisibleYearMenuButton, This specifies if the named component should be displayed.
*/
private boolean isVisibleYearMenuButton = true;
/**
* locale, This holds the picker locale instance that indicates the user's language and culture.
* The locale is used in translating text and determining default behaviors, for the date picker
* and the calendar panel. The default values for many of the other settings depend on the
* locale. The locale can only be set in the settings constructor. The default value for the
* locale is supplied from Locale.getDefault(), from Java and from the operating system.
*/
private Locale locale;
/**
* parentCalendarPanel, This holds a reference to any parent -independent- calendar panel that
* is associated with these settings. This variable is only intended to be set from the calendar
* panel constructor.
*
* Note that for any single DatePickerSettings instance, only one of the parentDatePicker and
* parentCalendarPanel variables will ever contain a parent instance. The other variable will
* always be null. (A date picker settings instance can be used as the settings for a DatePicker
* or for an independent CalendarPanel, but not for both at the same time.)
*
* This will be null until the CalendarPanel is constructed (using this settings instance).
*/
private CalendarPanel parentCalendarPanel;
/**
* parentDatePicker, This holds a reference to any parent date picker that is associated with
* these settings. This variable is only intended to be set from the date picker constructor.
*
* Note that for any single DatePickerSettings instance, only one of the parentDatePicker and
* parentCalendarPanel variables will ever contain a parent instance. The other variable will
* always be null. (A date picker settings instance can be used as the settings for a DatePicker
* or for an independent CalendarPanel, but not for both at the same time.)
*
* This will be null until the DatePicker is constructed (using this settings instance).
*/
private DatePicker parentDatePicker;
/**
* sizeDatePanelMinimumHeight, This specifies the minimum height, in pixels, of the date label
* area. The date label area is the part of the calendar panel that holds (only) the date
* labels. The remainder of the calendar panel is automatically resized to encompass the date
* label area. The default value for this variable is (6 * 18). If the default value is
* modified, the programmer may also wish to adjust sizeDatePanelPixelsExtraHeight.
*/
private int sizeDatePanelMinimumHeight;
/**
* sizeDatePanelMinimumWidth, This specifies the minimum width, in pixels, of the date label
* area. The date label area is the part of the calendar panel that holds (only) the date
* labels. The remainder of the calendar panel is automatically resized to encompass the date
* label area. The default value for this variable is (7 * 30). If the default value is
* modified, the programmer may also wish to adjust sizeDatePanelPixelsExtraWidth.
*/
private int sizeDatePanelMinimumWidth;
/**
* sizeTextFieldMinimumWidth, This specifies the minimum width, in pixels, of the DatePicker
* text field. (The text field is located to the left of the date picker "popup calendar"
* button, and displays the currently selected date.)
*
* The default value for this setting is null. When this is set to null, a default width for the
* date picker text field will be automatically calculated and applied to fit "the largest
* possible date" (with a four digit year) that can be displayed with the current date picker
* settings. The settings that are used to calculate the default text field width include the
* locale (the language), the fontValidDate, and the formatForDatesCommonEra.
*
* See also: "sizeTextFieldMinimumWidthDefaultOverride".
*/
private Integer sizeTextFieldMinimumWidth = null;
/**
* sizeTextFieldMinimumWidthDefaultOverride, This specifies how the date picker should choose
* the appropriate minimum width for the date picker text field. (As described below.)
*
* If this is true, then the applied minimum width will be the largest of either the default, or
* any programmer supplied, minimum widths.
*
* If this is false, then any programmer supplied minimum width will always override the default
* minimum width. (Even if the programmer supplied width is too small to fit the dates that can
* be displayed in the DatePicker).
*
* The default value for this setting is true. This setting only has an effect if
* (sizeTextFieldMinimumWidth != null).
*
* See also: "sizeTextFieldMinimumWidth".
*/
private boolean sizeTextFieldMinimumWidthDefaultOverride = true;
/**
* translationArrayLongMonthNames, This holds an array of month names to use for the calendar
* panel header, as translated to the current language. It is not expected that this variable
* will need to be changed by the programmer. The default values are generated using the locale
* of the settings instance, by retrieving the translated text for the current language from the
* class called java.text.DateFormatSymbols. This array is indexed with January = 0. The
* Calendar class month name constants can also be used for indexing. (Calendar.JANUARY, etc).
*
* Expected array contents: This array will never contain null, and the array should always have
* a length of 12. Each element should always contain a string that is not null and not empty.
*/
private String[] translationArrayStandaloneLongMonthNames;
/**
* translationArrayShortMonthNames, This holds an array of short month names to use for the
* calendar panel header, as translated to the current language. It is not expected that this
* variable will need to be changed by the programmer. The default values are generated using
* the locale of the settings instance, by retrieving the translated text for the current
* language from the class called java.text.DateFormatSymbols. This array is indexed with
* January = 0. The Calendar class month name constants can also be used for indexing.
* (Calendar.JANUARY, etc).
*
* Expected array contents: This array will never contain null, and the array should always have
* a length of 12. Each element should always contain a string that is not null and not empty.
*/
private String[] translationArrayStandaloneShortMonthNames;
/**
* translationClear, This holds the text of the calendars "Clear" button, as translated to the
* current language. It is not expected that this variable will need to be changed by the
* programmer. If you wish to supply a new translation for the date picker, it would generally
* be better to add (or edit) your translation in the "TranslationResources.properties" file.
* The default value is generated using the locale of the settings instance, by retrieving the
* translated text for the current language from the properties file.
*/
private String translationClear;
/**
* translationToday, This holds the text of the calendars "Today" button, as translated to the
* current language. It is not expected that this variable will need to be changed by the
* programmer. If you wish to supply a new translation for the date picker, it would generally
* be better to add (or edit) your translation in the "TranslationResources.properties" file.
* The default value is generated from the locale of the settings instance, by retrieving the
* translated text for the current language from the properties file.
*/
private String translationToday;
/**
* vetoPolicy, If a veto policy is supplied, it will be used to determine which dates can and
* cannot be selected in the calendar panel. (Vetoed dates are also not accepted into the date
* picker text field). By default, there is no veto policy. (The default value is null.) See the
* DateVetoPolicy Javadocs for details regarding when a veto policy is enforced. See the demo
* class for an example of constructing a veto policy.
*/
private DateVetoPolicy vetoPolicy = null;
/**
* weekNumbersRules, This contains the week number rules that will be used to show the week
* numbers (the weeks of the year), whenever the week numbers are displayed on this calendar.
*
* The definitions for the first day of the week, and for the minimum number of days that
* constitutes the first week of the year, varies between locales. The Java time WeekFields
* class specifies those rules.
*
* If you set this setting to null, then the weekNumberRules will be set to match the
* DatePickerSettings locale. By default, the week number rules will match the
* DatePickerSettings locale.
*
* If you would like the week number rules to be the same for all calendars regardless of the
* locale, then you should consider setting the weekNumberRules to be one of these two commonly
* used rule sets: WeekFields.ISO or WeekFields.SUNDAY_START.
*/
private WeekFields weekNumberRules;
/**
* weekNumbersDisplayed, This specifies whether or not numbers for the "week of the year" should
* be displayed on the calendar panel. The week numbers will be shown if this is true, or they
* will not be shown if this is false. This is false by default.
*
* The week numbers are locale sensitive, because the definition of the first day of the week,
* and the definition for the minimum number of days in the first week of the year, varies
* between locales.
*
* By default, when "weekNumbersDisplayed" is true, the first day of the week used by the
* calendar will always match the weekNumberRules definition for first day of the week. This
* behavior can be changed by modifying the setting "weekNumbersForceFirstDayOfWeekToMatch".
*
* Note: When weekNumbersDisplayed is set to false, then the borders located in the week number
* columns (Columns 1 and 2) will always be set to be hidden.
*/
private boolean weekNumbersDisplayed = false;
/**
* weekNumbersWillOverrideFirstDayOfWeek, This setting determines how to resolve any conflict
* between the "weekNumberRules" setting and the "firstDayOfWeek" setting. Note: This setting
* only has an effect when "weekNumbersDisplayed" is true.
*
* 1) If this setting is true (Default): Whenever the week numbers are displayed, then the first
* day of the week that is displayed on the calendar will always match the currently set
* "weekNumberRules". This enforces a strict and consistent definition for the week numbers.
* Specifically, this guarantees that all seven dates in each calendar row will belong to a
* single week number. Note: The WeekNumberRules are an instance of the java.time.temporal
* "WeekFields" class. For more information about how week numbers are defined, see the
* WeekFields javadocs.
*
* 2) If this setting is false: The first day of the week that is displayed on the calendar will
* always match the "firstDayOfWeek" setting, and a more "flexible" definition of week numbers
* will be applied. Using a firstDayOfWeek that does not match the week number rules will cause
* each calendar row to contain dates that fall inside two different week numbers. (As defined
* by the weekNumberRules.) In this circumstance, the displayed week numbers will be determined
* by a "majority rules" system, which is defined below.
*
* The "majority rules" system: Under the majority rule system, the calendar will count the
* number of days in each row that belong to each week number. In a single row, four (or more)
* days will match one week number, and three (or less) days will match a different week number.
* The most commonly occurring week number will be displayed next to each row.
*
* To summarize: If your program needs to implement a strict week number definition, then it is
* recommended to leave this setting at its default value (of true). If it is more important to
* have a flexible first day of the week, then you could set this value to false. When this
* setting is false, the displayed week numbers will follow a "majority rules" system, and will
* not exactly match the week number rules.
*/
private boolean weekNumbersWillOverrideFirstDayOfWeek = true;
/**
* zSkipDrawIndependentCalendarPanelIfNeeded, This is used to temporarily skip the named
* function, until the setLocale() function is complete.
*/
private boolean zSkipDrawIndependentCalendarPanelIfNeeded = false;
/**
* Constructor with Default Locale, This constructs a date picker settings instance using the
* system default locale and language. The constructor populates all the settings with default
* values.
*/
public DatePickerSettings() {
this(Locale.getDefault());
}
/**
* Constructor with Custom Locale, This constructs a date picker settings instance using the
* supplied locale and language. The constructor populates all the settings with default values.
*/
public DatePickerSettings(Locale pickerLocale) {
// Add all the default colors to the colors map.
colors = new HashMap();
for (DateArea area : DateArea.values()) {
colors.put(area, area.defaultColor);
}
// Set the minimum height, minimum width, for the date panel.
sizeDatePanelMinimumWidth = (7 * 31);
sizeDatePanelMinimumHeight = (7 * 19);
// Generate the default fonts and text colors.
// The font object is immutable, so it's okay to sign the same font to multiple settings.
Font defaultLabelFont = new JLabel().getFont();
fontClearLabel = defaultLabelFont;
fontCalendarDateLabels = defaultLabelFont;
fontCalendarWeekdayLabels = defaultLabelFont;
fontCalendarWeekNumberLabels = defaultLabelFont;
fontMonthAndYearMenuLabels = defaultLabelFont;
fontTodayLabel = defaultLabelFont;
Font defaultButtonFont = new JButton().getFont();
fontMonthAndYearNavigationButtons = defaultButtonFont;
Font defaultTextFieldFont = new JTextField().getFont();
fontValidDate = defaultTextFieldFont;
fontInvalidDate = defaultTextFieldFont;
fontVetoedDate = defaultTextFieldFont;
Map attributes = fontVetoedDate.getAttributes();
attributes.put(TextAttribute.STRIKETHROUGH, TextAttribute.STRIKETHROUGH_ON);
fontVetoedDate = new Font(attributes);
// Set the default border properties.
// (Setting this to null will create and save, (and apply when needed) a default set of
// border properties. I don't think there would be any parent to apply them to when called
// from the DatePickerSettings constructor though.)
setBorderPropertiesList(null);
// Save the date picker locale.
// This will also change all settings that most directly depend on the locale.
setLocale(pickerLocale);
}
/**
* copySettings, This function creates and returns a deep copy of this DatePickerSettings
* instance. The new settings instance can be used with new DatePicker or CalendarPanel
* instances. Certain fields are not copied, which are listed below.
*
* These fields are not copied: parentDatePicker, parentCalendarPanel, borderCalendarPopup,
* vetoPolicy, and highlightPolicy. These fields are always set to their default value in the
* returned settings instance. (The default value for all of these fields is null.)
*
* If you would like to set any of the fields that are not copied, then you should set the
* desired fields after calling copySettings().
*/
public DatePickerSettings copySettings() {
DatePickerSettings result = new DatePickerSettings();
result.allowEmptyDates = this.allowEmptyDates;
result.allowKeyboardEditing = this.allowKeyboardEditing;
// "result.borderCalendarPopup" is left at its default value.
if (this.borderPropertiesList == null) {
result.borderPropertiesList = null;
} else {
result.borderPropertiesList
= new ArrayList(this.borderPropertiesList.size());
for (CalendarBorderProperties borderProperty : this.borderPropertiesList) {
result.borderPropertiesList.add(borderProperty.clone());
}
}
result.colorBackgroundWeekNumberLabels = this.colorBackgroundWeekNumberLabels;
result.colorBackgroundWeekdayLabels = this.colorBackgroundWeekdayLabels;
if (this.colors == null) {
result.colors = null;
} else {
// A shallow copy is okay here, because the map key and value are immutable types.
result.colors = new HashMap(this.colors);
}
result.firstDayOfWeek = this.firstDayOfWeek;
// The Font class is immutable.
result.fontClearLabel = this.fontClearLabel;
result.fontCalendarDateLabels = this.fontCalendarDateLabels;
result.fontCalendarWeekdayLabels = this.fontCalendarWeekdayLabels;
result.fontCalendarWeekNumberLabels = this.fontCalendarWeekNumberLabels;
result.fontInvalidDate = this.fontInvalidDate;
result.fontMonthAndYearMenuLabels = this.fontMonthAndYearMenuLabels;
result.fontMonthAndYearNavigationButtons = this.fontMonthAndYearNavigationButtons;
result.fontTodayLabel = this.fontTodayLabel;
result.fontValidDate = this.fontValidDate;
result.fontVetoedDate = this.fontVetoedDate;
// The DateTimeFormatter class is immutable.
result.formatForDatesBeforeCommonEra = this.formatForDatesBeforeCommonEra;
result.formatForDatesCommonEra = this.formatForDatesCommonEra;
result.formatForTodayButton = this.formatForTodayButton;
result.formatsForParsing = (this.formatsForParsing == null)
? null : (ArrayList) this.formatsForParsing.clone();
result.gapBeforeButtonPixels = this.gapBeforeButtonPixels;
// "result.highlightPolicy" is left at its default value.
result.isVisibleClearButton = this.isVisibleClearButton;
result.isVisibleDateTextField = this.isVisibleDateTextField;
result.isVisibleMonthMenuButton = this.isVisibleMonthMenuButton;
result.isVisibleNextMonthButton = this.isVisibleNextMonthButton;
result.isVisibleNextYearButton = this.isVisibleNextYearButton;
result.isVisiblePreviousMonthButton = this.isVisiblePreviousMonthButton;
result.isVisiblePreviousYearButton = this.isVisiblePreviousYearButton;
result.isVisibleTodayButton = this.isVisibleTodayButton;
result.isVisibleYearMenuButton = this.isVisibleYearMenuButton;
result.locale = (Locale) this.locale.clone();
// "result.parentCalendarPanel" is left at its default value.
// "result.parentDatePicker" is left at its default value.
result.sizeDatePanelMinimumHeight = this.sizeDatePanelMinimumHeight;
result.sizeDatePanelMinimumWidth = this.sizeDatePanelMinimumWidth;
result.sizeTextFieldMinimumWidth = this.sizeTextFieldMinimumWidth;
result.sizeTextFieldMinimumWidthDefaultOverride = this.sizeTextFieldMinimumWidthDefaultOverride;
// The translation arrays will never be null, and the String class is an immutable type.
result.translationArrayStandaloneLongMonthNames
= this.translationArrayStandaloneLongMonthNames.clone();
result.translationArrayStandaloneShortMonthNames
= this.translationArrayStandaloneShortMonthNames.clone();
result.translationClear = this.translationClear;
result.translationToday = this.translationToday;
// "result.vetoPolicy" is left at its default value.
// The WeekFields class is immutable.
result.weekNumberRules = this.weekNumberRules;
result.weekNumbersDisplayed = this.weekNumbersDisplayed;
result.weekNumbersWillOverrideFirstDayOfWeek = this.weekNumbersWillOverrideFirstDayOfWeek;
result.zSkipDrawIndependentCalendarPanelIfNeeded = false;
return result;
}
/**
* getAllowEmptyDates, Returns the value of this setting. See the "set" function for setting
* information.
*/
public boolean getAllowEmptyDates() {
return allowEmptyDates;
}
/**
* getAllowKeyboardEditing, Returns the value of this setting. See the "set" function for
* setting information.
*/
public boolean getAllowKeyboardEditing() {
return allowKeyboardEditing;
}
/**
* getBorderCalendarPopup, Returns the value of this setting. See the "set" function for setting
* information.
*/
public Border getBorderCalendarPopup() {
return borderCalendarPopup;
}
/**
* getBorderPropertiesList, Returns the value of this setting. See the "set" function for
* setting information.
*/
public ArrayList getBorderPropertiesList() {
return borderPropertiesList;
}
/**
* getColor, This returns the currently set color for the specified area.
*/
public Color getColor(DateArea area) {
return colors.get(area);
}
/**
* getColorBackgroundWeekNumberLabels, Returns the value of this setting. See the "set" function
* for setting information.
*/
public Color getColorBackgroundWeekNumberLabels() {
return colorBackgroundWeekNumberLabels;
}
/**
* getColorBackgroundWeekdayLabels, Returns the value of this setting. See the "set" function
* for setting information.
*/
public Color getColorBackgroundWeekdayLabels() {
return colorBackgroundWeekdayLabels;
}
/**
* getDateRangeLimits, This will return a DateInterval containing any current date range limits.
* If no date range limits have been set, then this will return an empty DateInterval. (Both
* dates in the DateInterval will be null). If only one side of the date range limits was set,
* then the other date in the DateInterval will be null.
*
* Technical Notes: This will return any date range limits that were specifically created by
* calling "setDateRangeLimits()". Date range limits are internally implemented using a
* DateVetoPolicy. (Specifically using the class "DateVetoPolicyMinimumMaximumDate".) If
* setDateRangeLimits was never called, or if (for any reason) the current veto policy is not an
* instance of "DateVetoPolicyMinimumMaximumDate", then this will return an empty DateInterval.
* For additional details, see setDateRangeLimits().
*/
public DateInterval getDateRangeLimits() {
DateVetoPolicy policy = getVetoPolicy();
if (policy instanceof DateVetoPolicyMinimumMaximumDate) {
return ((DateVetoPolicyMinimumMaximumDate) policy).getDateRangeLimits();
}
return new DateInterval();
}
/**
* getEnableMonthMenu, Returns the value of this setting. See the "set" function for setting
* information.
*/
public boolean getEnableMonthMenu() {
return enableMonthMenu;
}
/**
* getEnableYearMenu, Returns the value of this setting. See the "set" function for setting
* information.
*/
public boolean getEnableYearMenu() {
return enableYearMenu;
}
/**
* getFirstDayOfWeekDisplayedOnCalendar, Returns the first day of the week as it will be
* displayed on the calendar. Note that this setting may or may not match the first day of the
* week setting. See also: "weekNumbersDisplayed", and "weekNumbersForceFirstDayOfWeekToMatch".
*/
public DayOfWeek getFirstDayOfWeekDisplayedOnCalendar() {
if (weekNumbersDisplayed && weekNumbersWillOverrideFirstDayOfWeek
&& (weekNumberRules != null)) {
return weekNumberRules.getFirstDayOfWeek();
}
return firstDayOfWeek;
}
/**
* getFirstDayOfWeekSetting, Returns the value of of the setting for the first day of the week.
* Note that this setting may or may not match the first day of the week that is displayed on
* the calendar. See also: "weekNumbersDisplayed", and "weekNumbersForceFirstDayOfWeekToMatch".
*/
public DayOfWeek getFirstDayOfWeekSetting() {
return firstDayOfWeek;
}
/**
* getFontCalendarDateLabels, Returns the value of this setting. See the "set" function for
* setting information.
*/
public Font getFontCalendarDateLabels() {
return fontCalendarDateLabels;
}
/**
* getFontCalendarWeekNumberLabels, Returns the value of this setting. See the "set" function
* for setting information.
*/
public Font getFontCalendarWeekNumberLabels() {
return fontCalendarWeekNumberLabels;
}
/**
* getFontCalendarWeekdayLabels, Returns the value of this setting. See the "set" function for
* setting information.
*/
public Font getFontCalendarWeekdayLabels() {
return fontCalendarWeekdayLabels;
}
/**
* getFontClearLabel, Returns the value of this setting. See the "set" function for setting
* information.
*/
public Font getFontClearLabel() {
return fontClearLabel;
}
/**
* getFontInvalidDate, Returns the value of this setting. See the "set" function for setting
* information.
*/
public Font getFontInvalidDate() {
return fontInvalidDate;
}
/**
* getFontMonthAndYearMenuLabels, Returns the value of this setting. See the "set" function for
* setting information.
*/
public Font getFontMonthAndYearMenuLabels() {
return fontMonthAndYearMenuLabels;
}
/**
* getFontMonthAndYearNavigationButtons, Returns the value of this setting. See the "set"
* function for setting information.
*/
public Font getFontMonthAndYearNavigationButtons() {
return fontMonthAndYearNavigationButtons;
}
/**
* getFontTodayLabel, Returns the value of this setting. See the "set" function for setting
* information.
*/
public Font getFontTodayLabel() {
return fontTodayLabel;
}
/**
* getFontValidDate, Returns the value of this setting. See the "set" function for setting
* information.
*/
public Font getFontValidDate() {
return fontValidDate;
}
/**
* getFontVetoedDate, Returns the value of this setting. See the "set" function for setting
* information.
*/
public Font getFontVetoedDate() {
return fontVetoedDate;
}
/**
* getFormatForDatesBeforeCommonEra, Returns the value of this setting. See the "set" function
* for setting information.
*/
public DateTimeFormatter getFormatForDatesBeforeCommonEra() {
return formatForDatesBeforeCommonEra;
}
/**
* getFormatForDatesCommonEra, Returns the value of this setting. See the "set" function for
* setting information.
*/
public DateTimeFormatter getFormatForDatesCommonEra() {
return formatForDatesCommonEra;
}
/**
* getFormatForTodayButton, Returns the value of this setting. See the "set" function for
* setting information.
*/
public DateTimeFormatter getFormatForTodayButton() {
return formatForTodayButton;
}
/**
* getFormatsForParsing, Returns the value of this setting. See the "set" function for setting
* information.
*/
public ArrayList getFormatsForParsing() {
return formatsForParsing;
}
/**
* getGapBeforeButtonPixels, Returns the value of this setting. See the "set" function for
* setting information.
*/
public Integer getGapBeforeButtonPixels() {
return gapBeforeButtonPixels;
}
/**
* getHighlightPolicy, This returns the highlight policy or null.
*/
public DateHighlightPolicy getHighlightPolicy() {
return highlightPolicy;
}
/**
* getLocale, This returns locale setting of the date picker. The locale can only be set in the
* DatePickerSettings constructor.
*/
public Locale getLocale() {
return locale;
}
/**
* getParentCalendarPanel, Returns the calendar panel that is the parent of the settings, or
* null if no parent calendar panel has been set.
*/
public CalendarPanel getParentCalendarPanel() {
return parentCalendarPanel;
}
/**
* getParentDatePicker, Returns the date picker that is the parent of the settings, or null if
* no parent date picker has been set.
*/
public DatePicker getParentDatePicker() {
return parentDatePicker;
}
/**
* getSizeDatePanelMinimumHeight, Returns the value of this setting. See the "set" function for
* setting information.
*/
public int getSizeDatePanelMinimumHeight() {
return sizeDatePanelMinimumHeight;
}
/**
* getSizeDatePanelMinimumWidth, Returns the value of this setting. See the "set" function for
* setting information.
*/
public int getSizeDatePanelMinimumWidth() {
return sizeDatePanelMinimumWidth;
}
/**
* getSizeTextFieldMinimumWidth, Returns the value of this setting. See the "set" function for
* setting information.
*/
public Integer getSizeTextFieldMinimumWidth() {
return sizeTextFieldMinimumWidth;
}
/**
* getSizeTextFieldMinimumWidthDefaultOverride, Returns the value of this setting. See the "set"
* function for setting information.
*/
public boolean getSizeTextFieldMinimumWidthDefaultOverride() {
return sizeTextFieldMinimumWidthDefaultOverride;
}
/**
* getTranslationArrayStandaloneLongMonthNames, Returns the value of this setting. See the "set"
* function for setting information.
*/
public String[] getTranslationArrayStandaloneLongMonthNames() {
return translationArrayStandaloneLongMonthNames;
}
/**
* getTranslationArrayStandaloneShortMonthNames, Returns the value of this setting. See the
* "set" function for setting information.
*/
public String[] getTranslationArrayStandaloneShortMonthNames() {
return translationArrayStandaloneShortMonthNames;
}
/**
* getTranslationClear, Returns the value of this setting. See the "set" function for setting
* information.
*/
public String getTranslationClear() {
return translationClear;
}
/**
* getTranslationToday, Returns the value of this setting. See the "set" function for setting
* information.
*/
public String getTranslationToday() {
return translationToday;
}
/**
* getVetoPolicy, This returns the veto policy or null.
*/
public DateVetoPolicy getVetoPolicy() {
return vetoPolicy;
}
/**
* getVisibleClearButton, This returns the visibility state of the named component.
*/
public boolean getVisibleClearButton() {
return isVisibleClearButton;
}
/**
* getVisibleDateTextField, This returns the visibility state of the named component.
*/
public boolean getVisibleDateTextField() {
return isVisibleDateTextField;
}
/**
* getVisibleMonthMenuButton, This returns the visibility state of the named component.
*/
public boolean getVisibleMonthMenuButton() {
return isVisibleMonthMenuButton;
}
/**
* getVisibleNextMonthButton, This returns the visibility state of the named component.
*/
public boolean getVisibleNextMonthButton() {
return isVisibleNextMonthButton;
}
/**
* getVisibleNextYearButton, This returns the visibility state of the named component.
*/
public boolean getVisibleNextYearButton() {
return isVisibleNextYearButton;
}
/**
* getVisiblePreviousMonthButton, This returns the visibility state of the named component.
*/
public boolean getVisiblePreviousMonthButton() {
return isVisiblePreviousMonthButton;
}
/**
* getVisiblePreviousYearButton, This returns the visibility state of the named component.
*/
public boolean getVisiblePreviousYearButton() {
return isVisiblePreviousYearButton;
}
/**
* getVisibleTodayButton, This returns the visibility state of the named component.
*/
public boolean getVisibleTodayButton() {
return isVisibleTodayButton;
}
/**
* getVisibleYearMenuButton, This returns the visibility state of the named component.
*/
public boolean getVisibleYearMenuButton() {
return isVisibleYearMenuButton;
}
/**
* getWeekNumberRules, Returns the value of this setting. See the "set" function for setting
* information.
*/
public WeekFields getWeekNumberRules() {
return weekNumberRules;
}
/**
* getWeekNumbersDisplayed, Returns the value of this setting. See the "set" function for
* setting information.
*/
public boolean getWeekNumbersDisplayed() {
return weekNumbersDisplayed;
}
/**
* getWeekNumbersWillOverrideFirstDayOfWeek, Returns the value of this setting. See the "set"
* function for setting information.
*/
public boolean getWeekNumbersWillOverrideFirstDayOfWeek() {
return weekNumbersWillOverrideFirstDayOfWeek;
}
/**
* hasParent, This returns true if this settings instance has a parent, otherwise returns false.
* A settings instance will have a parent if the settings instance has already been used to
* construct a DatePicker, or to construct an independent CalendarPanel. Note that settings
* instances cannot be reused. They are only expected to ever have one parent.
*/
public boolean hasParent() {
boolean hasParentDatePicker = (parentDatePicker != null);
boolean hasParentCalendarPanel = (parentCalendarPanel != null);
return (hasParentDatePicker || hasParentCalendarPanel);
}
/**
* isDateAllowed, This checks to see if the specified date is allowed by any currently set veto
* policy, and allowed by the current setting of allowEmptyDates.
*
* If allowEmptyDates is false, and the specified date is null, then this returns false.
*
* If a veto policy exists, and the specified date is vetoed, then this returns false.
*
* If the date is not vetoed, or if empty dates are allowed and the date is null, then this
* returns true.
*/
public boolean isDateAllowed(LocalDate date) {
if (date == null) {
return allowEmptyDates;
}
return (!(InternalUtilities.isDateVetoed(vetoPolicy, date)));
}
/**
* setAllowEmptyDates, This sets whether or not empty dates (null dates) are allowed in the
* DatePicker or independent CalendarPanel. If this is true, then empty dates will be allowed.
* If this is false, then empty dates will not be allowed.
*
* If setting this function to false, it is recommended to call this function -before- setting a
* veto policy. This sequence will guarantee that the DatePicker.getDate() (or
* CalendarPanel.getSelectedDate()) functions will never return a null value, and will guarantee
* that the setAllowEmptyDates() function will not throw an exception.
*
* If the current date is null and you set allowEmptyDates to false, then this function will
* attempt to initialize the current date to today's date. This function will throw an exception
* if it fails to initialize a null date. An exception is only possible if a veto policy is set
* before calling this function, and the veto policy vetoes today's date.
*/
public void setAllowEmptyDates(boolean allowEmptyDates) {
this.allowEmptyDates = allowEmptyDates;
if (hasParent()) {
zApplyAllowEmptyDates();
}
}
/**
* setAllowKeyboardEditing, This sets whether or not keyboard editing is allowed for this date
* picker. If this is true, then dates can be entered into the date picker either by using the
* keyboard or the mouse. If this is false, then dates can only be selected by using the mouse.
* The default value is true. It is generally recommended to leave this setting as "true".
*
* Accessibility Impact: Disallowing the use of the keyboard, and requiring the use of the
* mouse, could impact the accessibility of your program for disabled persons.
*
* Note: This setting does not impact the automatic enforcement of valid or vetoed dates. To
* learn about the automatic date validation and enforcement for keyboard entered text, see the
* javadocs for the DatePicker class.
*/
public void setAllowKeyboardEditing(boolean allowKeyboardEditing) {
this.allowKeyboardEditing = allowKeyboardEditing;
zApplyAllowKeyboardEditing();
}
/**
* setBorderCalendarPopup, This sets the border for the calendar popup window. If this is null,
* a default border will be provided by the CustomPopup class. The default value is null. This
* function only applies if the parent of the settings is a DatePicker. (Not if the parent is an
* independent CalendarPanel.)
*/
public void setBorderCalendarPopup(Border borderCalendarPopup) {
this.borderCalendarPopup = borderCalendarPopup;
}
/**
* setBorderPropertiesList, This sets the list of border properties objects that specifies the
* colors and thicknesses of the borders in the CalendarPanel. By default, a default set of
* border properties is stored in the borderPropertiesList.
*
* Passing in "null" when setting this property will restore the default border properties. If
* you don't want the default border properties but wish to truly "clear" the border properties
* list, you could pass in an empty ArrayList.
*
* To modify the calendar borders (including individual border colors, thickness, or
* visibility), you can supply your own ArrayList of border properties. Border properties
* objects are applied in the order that they appear in the ArrayList. To learn how to set the
* CalendarBorderProperties objects, see the CalendarBorderProperties class javadocs.
*
* The default border properties have a one pixel blue border around the date labels, and two
* vertical light blue borders near the weekday labels (which match the color of the weekday
* labels). The outer top horizontal border and the outer left vertical border are invisible by
* default.
*
* The default border properties also include borders above and below the "week numbers" column
* which match the color of the week numbers labels. (However, these borders are only displayed
* when the week numbers are displayed.)
*
* Whenever the border properties list is applied, the borders are first "cleared" by setting
* all borders to the following settings: Invisible, and black color. This is true of both the
* default border properties and any programmer supplied border properties.
*
* Note: If weekNumbersDisplayed is set to false, then the borders located in the week number
* columns (Columns 1 and 2) will always be hidden.
*/
public void setBorderPropertiesList(ArrayList borderPropertiesList) {
if (borderPropertiesList == null) {
borderPropertiesList = zGetDefaultBorderPropertiesList();
}
this.borderPropertiesList = borderPropertiesList;
// This only needs to be applied to independent calendar panels.
// For the date picker, the setting is automatically applied from the calendar panel
// constructor each time the calendar panel is opened.
if (parentCalendarPanel != null) {
parentCalendarPanel.zApplyBorderPropertiesList();
}
}
/**
* setColor, This sets a color for the specified area. Setting an area to null will restore the
* default color for that area.
*/
public void setColor(DateArea area, Color color) {
// If null was supplied, then use the default color.
if (color == null) {
color = area.defaultColor;
}
// Save the color to the color map.
colors.put(area, color);
// Call any "updating functions" that are appropriate for the specified area.
switch (area) {
case BackgroundMonthAndYearMenuLabels:
case BackgroundTodayLabel:
case BackgroundClearLabel:
if (parentCalendarPanel != null) {
parentCalendarPanel.zSetAllLabelIndicatorColorsToDefaultState();
}
break;
default:
if (parentDatePicker != null) {
parentDatePicker.zDrawTextFieldIndicators();
}
zDrawIndependentCalendarPanelIfNeeded();
}
}
/**
* setColorBackgroundWeekNumberLabels, This sets the calendar background color for the week
* number labels. The default color is a medium sky blue.
*
* @param applyMatchingDefaultBorders This determines if this function will update the border
* label properties to show the appropriate default borders. The default border label settings
* are different, depending on the "colorBackgroundWeekNumberLabels". If you have not customized
* the border label properties, then it is recommended that you always set the
* "applyMatchingDefaultBorders" parameter to true. This will ensure that the calendar borders
* will always use the correct default settings. If you set this parameter to false, than the
* current border settings will not be changed by this function.
*/
public void setColorBackgroundWeekNumberLabels(Color colorBackgroundWeekNumberLabels,
boolean applyMatchingDefaultBorders) {
this.colorBackgroundWeekNumberLabels = colorBackgroundWeekNumberLabels;
if (applyMatchingDefaultBorders) {
setBorderPropertiesList(null);
}
zDrawIndependentCalendarPanelIfNeeded();
}
/**
* setColorBackgroundWeekdayLabels, This sets the calendar background color for the weekday
* labels. The default color is a medium sky blue.
*
* @param applyMatchingDefaultBorders This determines if this function will update the border
* label properties to show the appropriate default borders. The default border label settings
* are different, depending on the "colorBackgroundWeekdayLabels". If you have not customized
* the border label properties, then it is recommended that you always set the
* "applyMatchingDefaultBorders" parameter to true. This will ensure that the calendar borders
* will always use the correct default settings. If you set this parameter to false, than the
* current border settings will not be changed by this function.
*/
public void setColorBackgroundWeekdayLabels(Color colorBackgroundWeekdayLabels,
boolean applyMatchingDefaultBorders) {
this.colorBackgroundWeekdayLabels = colorBackgroundWeekdayLabels;
if (applyMatchingDefaultBorders) {
setBorderPropertiesList(null);
}
zDrawIndependentCalendarPanelIfNeeded();
}
/**
* setDateRangeLimits, This is a convenience function, for setting a DateVetoPolicy that will
* limit the allowed dates in the parent object to a specified minimum and maximum date value.
* Calling this function will always replace any existing DateVetoPolicy.
*
* If you only want to limit one side of the date range, then you can pass in "null" for the
* other date variable. If you pass in null for both values, then the current veto policy will
* be cleared.
*
* Important Note: The DatePicker or independent CalendarPanel associated with this settings
* instance is known as the "parent component". This function can only be called after the
* parent component is constructed with this settings instance. If this is called before the
* parent is constructed, then an exception will be thrown. For more details, see:
* "DatePickerSettings.setVetoPolicy()".
*
* Return value: It's possible to set a veto policy that vetoes the currently selected date.
* This function returns true if the selected date is allowed by the new veto policy and the
* other current settings, or false if the selected date is vetoed or disallowed. Setting a new
* veto policy does not modify the selected date. Is up to the programmer to resolve any
* potential conflict between a new veto policy, and the currently selected date.
*/
public boolean setDateRangeLimits(LocalDate firstAllowedDate, LocalDate lastAllowedDate) {
if (!hasParent()) {
throw new RuntimeException("DatePickerSettings.setDateRangeLimits(), "
+ "A date range limit can only be set after constructing the parent "
+ "DatePicker or the parent independent CalendarPanel. (The parent component "
+ "should be constructed using the DatePickerSettings instance where the "
+ "date range limits will be applied. The previous sentence is probably "
+ "simpler than it sounds.)");
}
if (firstAllowedDate == null && lastAllowedDate == null) {
return setVetoPolicy(null);
}
return setVetoPolicy(new DateVetoPolicyMinimumMaximumDate(
firstAllowedDate, lastAllowedDate));
}
/**
* setEnableMonthMenu, This sets the month popup menu to be enabled or disabled. (Note: The
* month label is located in the header area of the calendar panel.) If this is true, then the
* month label will give a visual indication of any "mouse over" events, and the month menu will
* open when the month label is clicked. If this is false, then the month label will not
* indicate mouse over events, and the month menu can not be opened. The default value for this
* setting is true.
*
* Note: It is generally recommended to leave the month menu enabled. Disabling this menu can
* negatively impact calendar usability. When the month menu is disabled, the user may have to
* press the month navigation button many times to reach a desired month.
*/
public void setEnableMonthMenu(boolean enableMonthMenu) {
this.enableMonthMenu = enableMonthMenu;
}
/**
* setEnableYearMenu, This sets the year popup menu to be enabled or disabled. (Note: The year
* label is located in the header area of the calendar panel.) If this is true, then the year
* label will give a visual indication of any "mouse over" events, and the year menu will open
* when the year label is clicked. If this is false, then the year label will not indicate mouse
* over events, and the year menu can not be opened. The default value for this setting is true.
*
* Note: It is generally recommended to leave the year menu enabled. Disabling this menu can
* negatively impact calendar usability. When the year menu is disabled, it may become difficult
* or effectively impossible for the user to navigate to years that are far into the past or the
* future.
*/
public void setEnableYearMenu(boolean enableYearMenu) {
this.enableYearMenu = enableYearMenu;
}
/**
* setFirstDayOfWeek, This sets the day of the week that will be displayed in the far left
* column of the CalendarPanel, as the "first day of the week". The default value is generated
* using the locale of the settings instance.
*
* By default, If weekNumbersDisplayed is set to true, then the first day of the week will not
* match the setting. (weekNumbersDisplayed is false by default.) For additional details, see
* the javadocs for the following settings: "weekNumbersDisplayed", and
* "weekNumbersForceFirstDayOfWeekToMatch".
*/
public void setFirstDayOfWeek(DayOfWeek firstDayOfWeek) {
this.firstDayOfWeek = firstDayOfWeek;
zDrawIndependentCalendarPanelIfNeeded();
}
/**
* setFontCalendarDateLabels, This sets the font for the date numbers in the calendar panel.
* (Technical note: The date numbers are in JLabel instances.)
*/
public void setFontCalendarDateLabels(Font fontCalendarDateLabels) {
this.fontCalendarDateLabels = fontCalendarDateLabels;
zDrawIndependentCalendarPanelIfNeeded();
}
/**
* setFontCalendarWeekNumberLabels, This sets the font for the week numbers in the calendar
* panel. (This color will only appear if the week numbers are enabled.)
*/
public void setFontCalendarWeekNumberLabels(Font fontCalendarWeekNumberLabels) {
this.fontCalendarWeekNumberLabels = fontCalendarWeekNumberLabels;
zDrawIndependentCalendarPanelIfNeeded();
}
/**
* setFontCalendarWeekdayLabels, This sets the font for the weekday labels in the calendar
* panel.
*/
public void setFontCalendarWeekdayLabels(Font fontCalendarWeekdayLabels) {
this.fontCalendarWeekdayLabels = fontCalendarWeekdayLabels;
zDrawIndependentCalendarPanelIfNeeded();
}
/**
* setFontClearLabel, This sets the font for the clear label, (this also acts as a "button"), in
* the calendar panel.
*/
public void setFontClearLabel(Font fontClearLabel) {
this.fontClearLabel = fontClearLabel;
zDrawIndependentCalendarPanelIfNeeded();
}
/**
* setFontInvalidDate, This sets the text field text font for invalid dates. The default font is
* a normal undecorated font. (Note: The color for invalid dates defaults to Color.red. See
* also: "colorTextInvalidDate".)
*/
public void setFontInvalidDate(Font fontInvalidDate) {
this.fontInvalidDate = fontInvalidDate;
}
/**
* setFontMonthAndYearMenuLabels, This sets the font for the (two) month and year menu labels
* (these also act as "buttons") in the calendar panel.
*/
public void setFontMonthAndYearMenuLabels(Font fontMonthAndYearMenuLabels) {
this.fontMonthAndYearMenuLabels = fontMonthAndYearMenuLabels;
zDrawIndependentCalendarPanelIfNeeded();
}
/**
* setFontMonthAndYearNavigationButtons, This sets the font for the (four) month any year
* navigation buttons in the calendar panel.
*/
public void setFontMonthAndYearNavigationButtons(Font fontMonthAndYearNavigationButtons) {
this.fontMonthAndYearNavigationButtons = fontMonthAndYearNavigationButtons;
zDrawIndependentCalendarPanelIfNeeded();
}
/**
* setFontTodayLabel, This sets the font for the today label, (this also acts as a "button"), in
* the calendar panel.
*/
public void setFontTodayLabel(Font fontTodayLabel) {
this.fontTodayLabel = fontTodayLabel;
zDrawIndependentCalendarPanelIfNeeded();
}
/**
* setFontValidDate, This sets the text field text font for valid dates. The default font is a
* normal undecorated font, as provided by JTextField.
*
* Note: Changing the font for valid dates may also change the default minimum size for the date
* picker. This will not affect the minimum size if it has been overridden by the programmer.
*/
public void setFontValidDate(Font fontValidDate) {
this.fontValidDate = fontValidDate;
// The font for the valid date can change the default minimum size.
// So we recalculate and set the minimum size, if needed.
if (parentDatePicker != null) {
parentDatePicker.zSetAppropriateTextFieldMinimumWidth();
}
}
/**
* setFontVetoedDate, This sets the text field text font for vetoed dates. The default font
* crosses out the vetoed date. (Has a strikethrough font attribute.)
*/
public void setFontVetoedDate(Font fontVetoedDate) {
this.fontVetoedDate = fontVetoedDate;
}
/**
* setFormatForDatesBeforeCommonEra, This sets the format that is used to display or parse BCE
* dates in the date picker, from a DateTimeFormatter instance. The default value for the date
* format is generated using the locale of the settings instance.
*
* For most desired date formats, it would probably be easier to use the other "pattern string"
* version of this function. (which accepts a date pattern string instead of a DateTimeFormatter
* instance.)
*
* Note: It is important to use the letter "u" (astronomical year) instead of "y" (year of era)
* when creating pattern strings for BCE dates. This is because the DatePicker uses ISO 8601,
* which specifies "Astronomical year numbering". (Additional details: The astronomical year
* "-1" and "1 BC" are not the same thing. Astronomical years are zero-based, and BC dates are
* one-based. Astronomical year "0", is the same year as "1 BC", and astronomical year "-1" is
* the same year as "2 BC", and so forth.)
*
* The various codes for the date pattern string are described at this link:
* https://docs.oracle.com/javase/8/docs/api/java/time/format/DateTimeFormatter.html
*
* If the date picker has already been constructed, then calling this function will cause
* immediate validation of the text field text.
*/
public void setFormatForDatesBeforeCommonEra(DateTimeFormatter formatForDatesBeforeCommonEra) {
this.formatForDatesBeforeCommonEra = formatForDatesBeforeCommonEra;
if (parentDatePicker != null) {
parentDatePicker.setTextFieldToValidStateIfNeeded();
}
}
/**
* setFormatForDatesBeforeCommonEra, This sets the format that is used to display or parse BCE
* dates in the date picker, from a DateTimeFormatter pattern string. The default value for the
* date format is generated using the locale of the settings instance.
*
* Note: It is important to use the letter "u" (astronomical year) instead of "y" (year of era)
* when creating pattern strings for BCE dates. This is because the DatePicker uses ISO 8601,
* which specifies "Astronomical year numbering". (Additional details: The astronomical year
* "-1" and "1 BC" are not the same thing. Astronomical years are zero-based, and BC dates are
* one-based. Astronomical year "0", is the same year as "1 BC", and astronomical year "-1" is
* the same year as "2 BC", and so forth.)
*
* The various codes for the date pattern string are described at this link:
* https://docs.oracle.com/javase/8/docs/api/java/time/format/DateTimeFormatter.html
*
* If the date picker has already been constructed, then calling this function will cause
* immediate validation of the text field text.
*/
public void setFormatForDatesBeforeCommonEra(String patternString) {
DateTimeFormatter formatter
= PickerUtilities.createFormatterFromPatternString(patternString, getLocale());
setFormatForDatesBeforeCommonEra(formatter);
}
/**
* setFormatForDatesCommonEra, This sets the format that is used to display or parse CE dates in
* the date picker, from a DateTimeFormatter instance. The default value for the date format is
* generated using the locale of the settings instance.
*
* For most desired date formats, it would probably be easier to use the other "pattern string"
* version of this function. (which accepts a date pattern string instead of a DateTimeFormatter
* instance.)
*
* The various codes for the date pattern string are described at this link:
* https://docs.oracle.com/javase/8/docs/api/java/time/format/DateTimeFormatter.html
*
* If the date picker has already been constructed, then calling this function will cause
* immediate validation of the text field text.
*
* Note: Changing the format for CE dates may also change the default minimum width of the date
* picker text field.
*/
public void setFormatForDatesCommonEra(DateTimeFormatter formatForDatesCommonEra) {
this.formatForDatesCommonEra = formatForDatesCommonEra;
if (parentDatePicker != null) {
parentDatePicker.setTextFieldToValidStateIfNeeded();
}
// Changing the format for AD dates can change the default minimum width of the text field.
// So if needed, set the appropriate minimum width.
if (parentDatePicker != null) {
parentDatePicker.zSetAppropriateTextFieldMinimumWidth();
}
}
/**
* setFormatForDatesCommonEra, This sets the format that is used to display or parse CE dates in
* the date picker, from a DateTimeFormatter pattern string. The default value for the date
* format is generated using the locale of the settings instance.
*
* The various codes for the date pattern string are described at this link:
* https://docs.oracle.com/javase/8/docs/api/java/time/format/DateTimeFormatter.html
*
* If the date picker has already been constructed, then calling this function will cause
* immediate validation of the text field text.
*
* Note: Changing the format for CE dates may also change the default minimum width of the date
* picker text field.
*/
public void setFormatForDatesCommonEra(String patternString) {
DateTimeFormatter formatter
= PickerUtilities.createFormatterFromPatternString(patternString, getLocale());
setFormatForDatesCommonEra(formatter);
}
/**
* setFormatForTodayButton, This sets the format that is used to format today's date into a date
* string, which is displayed on the today button. The default value is generated using the
* locale of the settings instance.
*/
public void setFormatForTodayButton(DateTimeFormatter formatForTodayButton) {
this.formatForTodayButton = formatForTodayButton;
zDrawIndependentCalendarPanelIfNeeded();
}
/**
* setFormatsForParsing, This holds a list of formats that are used to attempt to parse dates
* that are typed by the user. When parsing a date, these formats are tried in the order that
* they appear in this list. Note that the formatForDatesCommonEra and
* formatForDatesBeforeCommonEra are always tried (in that order) before any other parsing
* formats. The default values for the formatsForParsing are generated using the pickerLocale,
* using the enum constants in java.time.format.FormatStyle.
*/
public void setFormatsForParsing(ArrayList formatsForParsing) {
this.formatsForParsing = formatsForParsing;
}
/**
* setGapBeforeButtonPixels, This specifies the desired width for the gap between the date
* picker and the toggle calendar button (in pixels). The default value is null. If this is left
* at null, then the default value is 3 pixels.
*/
public void setGapBeforeButtonPixels(Integer gapBeforeButtonPixels) {
this.gapBeforeButtonPixels = gapBeforeButtonPixels;
if (parentDatePicker != null) {
zApplyGapBeforeButtonPixels();
}
}
/**
* setHighlightPolicy,
*
* This sets a highlight policy for the parent DatePicker or parent independent CalendarPanel.
*
* If a highlight policy is supplied, it will be used to determine which dates should be
* highlighted in the calendar panel. The highlight policy can also supply tooltip text for any
* highlighted dates. See the demo class for an example of constructing a highlight policy. By
* default, there is no highlight policy. (The default value is null.)
*/
public void setHighlightPolicy(DateHighlightPolicy highlightPolicy) {
this.highlightPolicy = highlightPolicy;
zDrawIndependentCalendarPanelIfNeeded();
}
/**
* setLocale, This will set the locale for this DatePickerSettings instance, and will set all
* other settings that depend on the locale to their default values.
*
* Warning: Every setting whose default value depends on the locale, will be overwritten
* whenever this function is called.
*
* This is a list of all the settings which are overwritten by this function: locale,
* translationArrayStandaloneLongMonthNames, translationArrayStandaloneShortMonthNames,
* translationToday, translationClear, formatForTodayButton, formatForDatesCommonEra,
* formatForDatesBeforeCommonEra, formatsForParsing, firstDayOfWeek, weekNumberRules.
*
* For most applications, it is generally recommended to only set the locale from the
* DatePickerSettings constructor. If you use setLocale() to change the locale after
* construction, then you will overwrite any previously customized locale-specific settings.
*
* Passing in "null" will apply the default locale for the current Java Virtual Machine.
*/
public void setLocale(Locale locale) {
// Check for null, which indicates that we should use the default locale.
if (locale == null) {
locale = Locale.getDefault();
}
// Fix a problem where the Hindi locale is not recognized by language alone.
if ("hi".equals(locale.getLanguage()) && (locale.getCountry().isEmpty())) {
locale = new Locale("hi", "IN");
}
this.locale = locale;
// Do not redraw the calendar until this function is complete.
zSkipDrawIndependentCalendarPanelIfNeeded = true;
// Set the default week number rules.
WeekFields localeWeekFields = WeekFields.of(locale);
setWeekNumberRules(localeWeekFields);
// Set the default "today" and "clear" translations for the locale.
String todayTranslation = TranslationSource.getTranslation(locale, "today", "Today");
setTranslationToday(todayTranslation);
String clearTranslation = TranslationSource.getTranslation(locale, "clear", "Clear");
setTranslationClear(clearTranslation);
// Set the default standalone month names for the locale.
String[] standaloneLongMonthNames
= ExtraDateStrings.getDefaultStandaloneLongMonthNamesForLocale(locale);
setTranslationArrayStandaloneLongMonthNames(standaloneLongMonthNames);
String[] standaloneShortMonthNames
= ExtraDateStrings.getDefaultStandaloneShortMonthNamesForLocale(locale);
setTranslationArrayStandaloneShortMonthNames(standaloneShortMonthNames);
// Create default formatters for displaying the today button, and AD and BC dates, in
// the specified locale.
DateTimeFormatter formatForToday
= DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM).withLocale(locale);
setFormatForTodayButton(formatForToday);
DateTimeFormatter formatForDatesCE = InternalUtilities.generateDefaultFormatterCE(locale);
setFormatForDatesCommonEra(formatForDatesCE);
DateTimeFormatter formatForDatesBCE = InternalUtilities.generateDefaultFormatterBCE(locale);
setFormatForDatesBeforeCommonEra(formatForDatesBCE);
// Create an array of all the FormatStyle enum values, from short to long.
FormatStyle[] allFormatStyles = new FormatStyle[]{
FormatStyle.SHORT, FormatStyle.MEDIUM, FormatStyle.LONG, FormatStyle.FULL};
// Create a set of default parsing formatters for the specified locale.
ArrayList parsingFormats = new ArrayList();
DateTimeFormatter parseFormat;
for (int i = 0; i < allFormatStyles.length; ++i) {
parseFormat = new DateTimeFormatterBuilder().parseLenient().parseCaseInsensitive().
appendLocalized(allFormatStyles[i], null).toFormatter(locale);
parsingFormats.add(parseFormat);
}
// Get any common extra parsing formats for the specified locale, and append them to
// the list of parsingFormatters.
ArrayList extraFormatters
= ExtraDateStrings.getExtraParsingFormatsForLocale(locale);
parsingFormats.addAll(extraFormatters);
// Save the parsing formats.
setFormatsForParsing(parsingFormats);
// Initialize the first day of the week.
DayOfWeek firstDayOfWeekDefault = WeekFields.of(locale).getFirstDayOfWeek();
setFirstDayOfWeek(firstDayOfWeekDefault);
// Draw the calendar.
zSkipDrawIndependentCalendarPanelIfNeeded = false;
zDrawIndependentCalendarPanelIfNeeded();
// Update the parent date picker text field if needed.
zDrawDatePickerTextFieldIfNeeded();
}
/**
* setSizeDatePanelMinimumHeight, This sets the minimum height, in pixels, of the date label
* area. The date label area is the part of the calendar panel that holds (only) the date
* labels. The remainder of the calendar panel is automatically resized to encompass the date
* label area. The default value for this variable is (6 * 18). If the default value is
* modified, the programmer may also wish to adjust sizeDatePanelPixelsExtraHeight.
*/
public void setSizeDatePanelMinimumHeight(int sizeDatePanelMinimumHeight) {
this.sizeDatePanelMinimumHeight = sizeDatePanelMinimumHeight;
zDrawIndependentCalendarPanelIfNeeded();
}
/**
* setSizeDatePanelMinimumWidth, This sets the minimum width, in pixels, of the date label area.
* The date label area is the part of the calendar panel that holds (only) the date labels. The
* remainder of the calendar panel is automatically resized to encompass the date label area.
* The default value for this variable is (7 * 30). If the default value is modified, the
* programmer may also wish to adjust sizeDatePanelPixelsExtraWidth.
*/
public void setSizeDatePanelMinimumWidth(int sizeDatePanelMinimumWidth) {
this.sizeDatePanelMinimumWidth = sizeDatePanelMinimumWidth;
zDrawIndependentCalendarPanelIfNeeded();
}
/**
* setSizeTextFieldMinimumWidth, This sets the minimum width in pixels, of the DatePicker text
* field. (The text field is located to the left of the date picker "popup calendar" button, and
* displays the currently selected date.)
*
* The default value for this setting is null. When this is set to null, a default width for the
* date picker text field will be automatically calculated and applied to fit "the largest
* possible date" (with a four digit year) that can be displayed with the current date picker
* settings. The settings used to calculate the default text field width include the locale (the
* language), the fontValidDate, and the formatForDatesCommonEra.
*/
public void setSizeTextFieldMinimumWidth(Integer minimumWidthInPixels) {
this.sizeTextFieldMinimumWidth = minimumWidthInPixels;
if (parentDatePicker != null) {
parentDatePicker.zSetAppropriateTextFieldMinimumWidth();
}
}
/**
* setSizeTextFieldMinimumWidthDefaultOverride, This specifies how the date picker should choose
* the appropriate minimum width for the date picker text field. (As described below.)
*
* If this is true, then the applied minimum width will be the largest of either the default, or
* any programmer supplied, minimum widths.
*
* If this is false, then any programmer supplied minimum width will always override the default
* minimum width. (Even if the programmer supplied width is too small to fit the dates that can
* be displayed in the DatePicker).
*
* The default value for this setting is true. This setting only has an effect if
* (sizeTextFieldMinimumWidth != null).
*
* See also: "setSizeTextFieldMinimumWidth()".
*/
public void setSizeTextFieldMinimumWidthDefaultOverride(boolean defaultShouldOverrideIfNeeded) {
this.sizeTextFieldMinimumWidthDefaultOverride = defaultShouldOverrideIfNeeded;
if (parentDatePicker != null) {
parentDatePicker.zSetAppropriateTextFieldMinimumWidth();
}
}
/**
* setTranslationArrayStandaloneLongMonthNames, This sets an array of month names to use for the
* calendar panel header, as translated to the current language. It is not expected that this
* variable will need to be changed by the programmer. The default values are generated using
* the locale of the settings instance, by retrieving the translated text for the current
* language from the class called java.text.DateFormatSymbols. This array is indexed with
* January = 0. The Calendar class month name constants can also be used for indexing.
* (Calendar.JANUARY, etc). Setting this to null will restore the default values.
*
* Expected array contents: The array should always have a length of 12. Each element should
* always contain a string that is not null and not empty.
*/
public void setTranslationArrayStandaloneLongMonthNames(String[] newTranslationArray) {
if (newTranslationArray == null) {
String[] defaultLongMonthNames
= ExtraDateStrings.getDefaultStandaloneLongMonthNamesForLocale(locale);
this.translationArrayStandaloneLongMonthNames = defaultLongMonthNames;
} else {
this.translationArrayStandaloneLongMonthNames = newTranslationArray;
}
zDrawIndependentCalendarPanelIfNeeded();
}
/**
* setTranslationArrayStandaloneShortMonthNames, This sets an array of short month names to use
* for the calendar panel header, as translated to the current language. It is not expected that
* this variable will need to be changed by the programmer. The default values are generated
* using the locale of the settings instance, by retrieving the translated text for the current
* language from the class called java.text.DateFormatSymbols. This array is indexed with
* January = 0. The Calendar class month name constants can also be used for indexing.
* (Calendar.JANUARY, etc). Setting this to null will restore the default values.
*
* Expected array contents: The array should always have a length of 12. Each element should
* always contain a string that is not null and not empty.
*/
public void setTranslationArrayStandaloneShortMonthNames(String[] newTranslationArray) {
if (newTranslationArray == null) {
String[] defaultShortMonthNames
= ExtraDateStrings.getDefaultStandaloneShortMonthNamesForLocale(locale);
this.translationArrayStandaloneShortMonthNames = defaultShortMonthNames;
} else {
this.translationArrayStandaloneShortMonthNames = newTranslationArray;
}
zDrawIndependentCalendarPanelIfNeeded();
}
/**
* setTranslationClear, This sets the text of the calendars "Clear" button, as translated to the
* current language. It is not expected that this variable will need to be changed by the
* programmer. If you wish to supply a new translation for the date picker, it would generally
* be better to add (or edit) your translation in the "TranslationResources.properties" file.
* The default value is generated using the locale of the settings instance, by retrieving the
* translated text for the current language from the properties file.
*/
public void setTranslationClear(String translationClear) {
this.translationClear = translationClear;
zDrawIndependentCalendarPanelIfNeeded();
}
/**
* setTranslationToday, This sets the text of the calendars "Today" button, as translated to the
* current language. It is not expected that this variable will need to be changed by the
* programmer. If you wish to supply a new translation for the date picker, it would generally
* be better to add (or edit) your translation in the "TranslationResources.properties" file.
* The default value is generated from the locale of the settings instance, by retrieving the
* translated text for the current language from the properties file.
*/
public void setTranslationToday(String translationToday) {
this.translationToday = translationToday;
zDrawIndependentCalendarPanelIfNeeded();
}
/**
* setVetoPolicy,
*
* This sets a veto policy for the parent DatePicker or parent independent CalendarPanel.
*
* Important Note: The DatePicker or independent CalendarPanel associated with this settings
* instance is known as the "parent component". This function can only be called after the
* parent component is constructed with this settings instance. If this is called before the
* parent is constructed, then an exception will be thrown.
*
* When a veto policy is supplied, it will be used to determine which dates can or can not be
* selected in the calendar panel. (Vetoed dates are also not accepted into the date picker text
* field). See the demo class for an example of constructing a veto policy.
*
* By default, there is no veto policy. Setting this function to null will clear any veto policy
* that has been set.
*
* Return value: It's possible to set a veto policy that vetoes the currently selected date.
* This function returns true if the selected date is allowed by the new veto policy and the
* other current settings, or false if the selected date is vetoed or disallowed. Setting a new
* veto policy does not modify the selected date. Is up to the programmer to resolve any
* potential conflict between a new veto policy, and the currently selected date.
*/
public boolean setVetoPolicy(DateVetoPolicy vetoPolicy) {
if (!hasParent()) {
throw new RuntimeException("DatePickerSettings.setVetoPolicy(), "
+ "A veto policy can only be set after constructing the parent DatePicker or "
+ "the parent independent CalendarPanel. (The parent component should be "
+ "constructed using the DatePickerSettings instance where the veto policy "
+ "will be applied. The previous sentence is probably simpler than it sounds.)");
}
this.vetoPolicy = vetoPolicy;
// If the parent is an independent calendar panel, redraw the panel to show the new policy.
zDrawIndependentCalendarPanelIfNeeded();
// Return true if the selected date is allowed by the new policy, otherwise return false.
LocalDate parentDate = zGetParentSelectedDate();
return isDateAllowed(parentDate);
}
/**
* setVisibleDateTextField, This sets the visibility of the DatePicker text field. This can be
* used in conjunction with "setGapBeforeButtonPixels(0)" to create an instance of the date
* picker that only displays the toggle calendar button. One reason a developer might want to do
* this, is if they wished to provide their own component to display any selected date.
*/
public void setVisibleDateTextField(boolean isVisible) {
isVisibleDateTextField = isVisible;
if (parentDatePicker != null) {
parentDatePicker.zApplyVisibilityOfComponents();
}
}
/**
* setVisibleClearButton, This sets the visibility of the named component.
*/
public void setVisibleClearButton(boolean isVisible) {
isVisibleClearButton = isVisible;
zApplyIndependentCalendarPanelButtonVisibilityIfNeeded();
}
/**
* setVisibleMonthMenuButton, This sets the visibility of the named component.
*/
public void setVisibleMonthMenuButton(boolean isVisible) {
isVisibleMonthMenuButton = isVisible;
zApplyIndependentCalendarPanelButtonVisibilityIfNeeded();
}
/**
* setVisibleNextMonthButton, This sets the visibility of the named component.
*/
public void setVisibleNextMonthButton(boolean isVisible) {
isVisibleNextMonthButton = isVisible;
zApplyIndependentCalendarPanelButtonVisibilityIfNeeded();
}
/**
* setVisibleNextYearButton, This sets the visibility of the named component.
*/
public void setVisibleNextYearButton(boolean isVisible) {
isVisibleNextYearButton = isVisible;
zApplyIndependentCalendarPanelButtonVisibilityIfNeeded();
}
/**
* setVisiblePreviousMonthButton, This sets the visibility of the named component.
*/
public void setVisiblePreviousMonthButton(boolean isVisible) {
isVisiblePreviousMonthButton = isVisible;
zApplyIndependentCalendarPanelButtonVisibilityIfNeeded();
}
/**
* setVisiblePreviousYearButton, This sets the visibility of the named component.
*/
public void setVisiblePreviousYearButton(boolean isVisible) {
isVisiblePreviousYearButton = isVisible;
zApplyIndependentCalendarPanelButtonVisibilityIfNeeded();
}
/**
* setVisibleTodayButton, This sets the visibility of the named component.
*/
public void setVisibleTodayButton(boolean isVisible) {
isVisibleTodayButton = isVisible;
zApplyIndependentCalendarPanelButtonVisibilityIfNeeded();
}
/**
* setVisibleYearMenuButton, This sets the visibility of the named component.
*/
public void setVisibleYearMenuButton(boolean isVisible) {
isVisibleYearMenuButton = isVisible;
zApplyIndependentCalendarPanelButtonVisibilityIfNeeded();
}
/**
* setWeekNumberRules, This sets the week number rules that will be used to show the week
* numbers (the weeks of the year), whenever the week numbers are displayed on this calendar.
*
* The definitions for the first day of the week, and for the minimum number of days that
* constitutes the first week of the year, varies between locales. The Java time WeekFields
* class specifies those rules.
*
* If you set this setting to null, then the weekNumberRules will be set to match the
* DatePickerSettings locale. By default, the week number rules will match the
* DatePickerSettings locale.
*
* If you would like the week number rules to be the same for all calendars (regardless of the
* locale), then you should consider setting the weekNumberRules to one of these two widely used
* rule sets: WeekFields.ISO or WeekFields.SUNDAY_START.
*/
public void setWeekNumberRules(WeekFields weekNumberRules) {
if (weekNumberRules == null) {
weekNumberRules = WeekFields.of(locale);
}
this.weekNumberRules = weekNumberRules;
zDrawIndependentCalendarPanelIfNeeded();
}
/**
* setWeekNumbersDisplayed, This specifies whether or not numbers for the "week of the year"
* should be displayed on the calendar panel. The week numbers will be shown if this is true, or
* they will not be shown if this is false. This is false by default.
*
* The week numbers are locale sensitive, because the definition of the first day of the week,
* and the definition for the minimum number of days in the first week of the year, varies
* between locales.
*
* By default, when "weekNumbersDisplayed" is true, the first day of the week used by the
* calendar will always match the weekNumberRules definition for first day of the week. This
* behavior can be changed by modifying the setting "weekNumbersForceFirstDayOfWeekToMatch".
*
* @param weekNumbersDisplayed This determines whether the week numbers should be displayed on
* the calendar. They will be shown if this is true, or not shown that this is false
*
* @param applyMatchingDefaultBorders This determines if this function will update the border
* label properties to show the appropriate default borders. The default border label settings
* are different, depending on "showWeekNumbers". If you have not customized the border label
* properties, then it is recommended that you always set the "applyMatchingDefaultBorders"
* parameter to true. This will ensure that the calendar borders will always use the correct
* default settings. If you set this parameter to false, than the current border settings will
* not be changed by this function.
*/
public void setWeekNumbersDisplayed(boolean weekNumbersDisplayed,
boolean applyMatchingDefaultBorders) {
this.weekNumbersDisplayed = weekNumbersDisplayed;
if (applyMatchingDefaultBorders) {
setBorderPropertiesList(null);
}
zDrawIndependentCalendarPanelIfNeeded();
}
/**
* setWeekNumbersWillOverrideFirstDayOfWeek, This setting determines how to resolve any conflict
* between the "weekNumberRules" setting and the "firstDayOfWeek" setting. Note: This setting
* only has an effect when "weekNumbersDisplayed" is true.
*
* 1) If this setting is true (Default): Whenever the week numbers are displayed, then the first
* day of the week that is displayed on the calendar will always match the currently set
* "weekNumberRules". This enforces a strict and consistent definition for the week numbers.
* Specifically, this guarantees that all seven dates in each calendar row will belong to a
* single week number. Note: The WeekNumberRules are an instance of the java.time.temporal
* "WeekFields" class. For more information about how week numbers are defined, see the
* WeekFields javadocs.
*
* 2) If this setting is false: The first day of the week that is displayed on the calendar will
* always match the "firstDayOfWeek" setting, and a more "flexible" definition of week numbers
* will be applied. Using a firstDayOfWeek that does not match the week number rules will cause
* each calendar row to contain dates that fall inside two different week numbers. (As defined
* by the weekNumberRules.) In this circumstance, the displayed week numbers will be determined
* by a "majority rules" system, which is defined below.
*
* The "majority rules" system: Under the majority rule system, the calendar will count the
* number of days in each row that belong to each week number. In a single row, four (or more)
* days will match one week number, and three (or less) days will match a different week number.
* The most commonly occurring week number will be displayed next to each row.
*
* To summarize: If your program needs to implement a strict week number definition, then it is
* recommended to leave this setting at its default value (of true). If it is more important to
* have a flexible first day of the week, then you could set this value to false. When this
* setting is false, the displayed week numbers will follow a "majority rules" system, and will
* not exactly match the week number rules.
*/
public void setWeekNumbersWillOverrideFirstDayOfWeek(
boolean weekNumbersWillOverrideFirstDayOfWeek) {
this.weekNumbersWillOverrideFirstDayOfWeek = weekNumbersWillOverrideFirstDayOfWeek;
zDrawIndependentCalendarPanelIfNeeded();
}
/**
* zApplyAllowEmptyDates, This applies the named setting to the parent component.
*
* Implementation Notes:
*
* This cannot throw an exception while the parent DatePicker or parent CalendarPanel is being
* constructed, because a veto policy cannot be set until after the parent component is
* constructed.
*/
void zApplyAllowEmptyDates() {
// If we don't have a parent, then there is nothing to do here. (So, we return.)
if (!hasParent()) {
return;
}
// Find out if we need to initialize a null date.
LocalDate selectedDate = zGetParentSelectedDate();
if ((!allowEmptyDates) && (selectedDate == null)) {
// We need to initialize the current date, so find out if today is vetoed.
LocalDate today = LocalDate.now();
if (InternalUtilities.isDateVetoed(vetoPolicy, today)) {
throw new RuntimeException("Exception in DatePickerSettings.zApplyAllowEmptyDates(), "
+ "Could not initialize a null date to today, because today is vetoed by "
+ "the veto policy. To prevent this exception, always call "
+ "setAllowEmptyDates() -before- setting a veto policy.");
}
// Initialize the current date.
zSetParentSelectedDate(today);
}
}
/**
* zApplyAllowKeyboardEditing, This applies the named setting to the parent component.
*/
void zApplyAllowKeyboardEditing() {
if (parentDatePicker == null) {
return;
}
// Set the editability of the date picker text field.
parentDatePicker.getComponentDateTextField().setEditable(allowKeyboardEditing);
// Set the text field border color based on whether the text field is editable.
Color textFieldBorderColor = (allowKeyboardEditing)
? InternalConstants.colorEditableTextFieldBorder
: InternalConstants.colorNotEditableTextFieldBorder;
parentDatePicker.getComponentDateTextField().setBorder(new CompoundBorder(
new MatteBorder(1, 1, 1, 1, textFieldBorderColor), new EmptyBorder(1, 3, 2, 2)));
}
/**
* zApplyGapBeforeButtonPixels, This applies the named setting to the parent component.
*/
void zApplyGapBeforeButtonPixels() {
int gapPixels = (gapBeforeButtonPixels == null) ? 3 : gapBeforeButtonPixels;
ConstantSize gapSizeObject = new ConstantSize(gapPixels, ConstantSize.PIXEL);
ColumnSpec columnSpec = ColumnSpec.createGap(gapSizeObject);
FormLayout layout = ((FormLayout) parentDatePicker.getLayout());
layout.setColumnSpec(2, columnSpec);
}
/**
* zApplyIndependentCalendarPanelButtonVisibilityIfNeeded, If needed, this will apply the
* visibility settings for buttons to the independent CalendarPanel. This function only has an
* effect if the parent of this settings instance is an independent CalendarPanel (and not a
* DatePicker).
*/
private void zApplyIndependentCalendarPanelButtonVisibilityIfNeeded() {
if (parentCalendarPanel != null) {
parentCalendarPanel.zApplyVisibilityOfButtons();
}
}
/**
* zDrawDatePickerTextFieldIfNeeded, If needed, this will redraw the parent date picker text
* field. This function only has an effect if the parent of this settings instance is a
* DatePicker.
*/
void zDrawDatePickerTextFieldIfNeeded() {
if (parentDatePicker != null) {
parentDatePicker.setTextFieldToValidStateIfNeeded();
}
}
/**
* zDrawIndependentCalendarPanelIfNeeded, If needed, this will redraw the independent
* CalendarPanel. This function only has an effect if the parent of this settings instance is an
* independent CalendarPanel (and not a DatePicker).
*/
private void zDrawIndependentCalendarPanelIfNeeded() {
if (zSkipDrawIndependentCalendarPanelIfNeeded) {
return;
}
if (parentCalendarPanel != null) {
parentCalendarPanel.drawCalendar();
}
}
/**
* zGetParentSelectedDate, Returns the currently selected date from the parent DatePicker or
* parent independent CalendarPanel (using whichever parent currently exists). If this settings
* instance does not have a parent, then this will return null. Note that any calling code
* should generally verify whether or not this settings instance has a parent, before calling
* this function.
*/
private LocalDate zGetParentSelectedDate() {
if (!hasParent()) {
return null;
}
boolean useDatePicker = (parentDatePicker != null);
return (useDatePicker) ? parentDatePicker.getDate() : parentCalendarPanel.getSelectedDate();
}
/**
* zGetDefaultBorderPropertiesList, This creates and returns a list of default border properties
* for the calendar. The default border properties will be slightly different depending on
* whether or not the week numbers are currently displayed in the calendar.
*
* Technical notes: This does not save the default border properties to the date picker settings
* class. This does not clear the existing borders. This does not apply the border properties
* list to the calendar. This does not set the upper left corner calendar label to be visible or
* invisible.
*/
private ArrayList zGetDefaultBorderPropertiesList() {
ArrayList results = new ArrayList();
Color defaultDateBoxBorderColor = new Color(99, 130, 191);
Color defaultWeekdayEndcapsBorderColor = colorBackgroundWeekdayLabels;
Color defaultWeekNumberEndcapsBorderColor = colorBackgroundWeekNumberLabels;
// Set the borders properties for the date box.
CalendarBorderProperties dateBoxBorderProperties = new CalendarBorderProperties(
new Point(3, 3), new Point(5, 5), defaultDateBoxBorderColor, 1);
results.add(dateBoxBorderProperties);
// Set the borders properties for the weekday label endcaps.
CalendarBorderProperties weekdayLabelBorderProperties = new CalendarBorderProperties(
new Point(3, 2), new Point(5, 2), defaultWeekdayEndcapsBorderColor, 1);
results.add(weekdayLabelBorderProperties);
// Set the border properties for borders above and below the week numbers.
// Note that the week number borders are only displayed when the week numbers are also
// displayed. (This is true of any borders located in columns 1 and 2.)
CalendarBorderProperties weekNumberBorderProperties = new CalendarBorderProperties(
new Point(2, 3), new Point(2, 5), defaultWeekNumberEndcapsBorderColor, 1);
results.add(weekNumberBorderProperties);
// Return the results.
return results;
}
/**
* zSetParentCalendarPanel, This sets the parent calendar panel for these settings. A settings
* instance may only be used for one picker component. If the setting instance already has a
* parent component, then an exception will be thrown.
*
* This is package private, and is only intended to be called from the CalendarPanel class.
*/
void zSetParentCalendarPanel(CalendarPanel parentCalendarPanel) {
if (hasParent()) {
throw new RuntimeException("DatePickerSettings.setParentCalendarPanel(), "
+ "A DatePickerSettings instance can only be used as the settings for "
+ "one parent object. (Settings instances cannot be reused for multiple "
+ "DatePickers, multiple independent CalendarPanels, or for combinations "
+ "of both. )");
}
this.parentCalendarPanel = parentCalendarPanel;
}
/**
* zSetParentDatePicker, This sets the parent date picker for these settings. This is only
* intended to be called from the constructor of the DatePicker class.
*/
void zSetParentDatePicker(DatePicker parentDatePicker) {
if (hasParent()) {
throw new RuntimeException("DatePickerSettings.setParentCalendarPanel(), "
+ "A DatePickerSettings instance can only be used as the settings for "
+ "one parent object. (Settings instances cannot be reused for multiple "
+ "DatePickers, multiple independent CalendarPanels, or for combinations "
+ "of both.)");
}
this.parentDatePicker = parentDatePicker;
}
/**
* zSetParentSelectedDate, Sets the currently selected date for the parent DatePicker or parent
* independent CalendarPanel (using whichever parent currently exists). If this settings
* instance does not have a parent, then this will not do anything. Note that any calling code
* should generally verify whether or not this settings instance has a parent, before calling
* this function.
*/
private void zSetParentSelectedDate(LocalDate dateValue) {
if (parentDatePicker != null) {
parentDatePicker.setDate(dateValue);
}
if (parentCalendarPanel != null) {
parentCalendarPanel.setSelectedDate(dateValue);
}
}
}
