X-Git-Url: http://git.nikiroo.be/?a=blobdiff_plain;f=src%2Fjexer%2FTCalendar.java;fp=src%2Fjexer%2FTCalendar.java;h=c2005ccb60634279c8a3e5eb064cb59dc083ea04;hb=12b90437b5f22c2ae6e9b9b14c3b62b60f6143e5;hp=0000000000000000000000000000000000000000;hpb=b709b36e17eb8807819e51297bb398ef28ece52d;p=fanfix.git diff --git a/src/jexer/TCalendar.java b/src/jexer/TCalendar.java new file mode 100644 index 0000000..c2005cc --- /dev/null +++ b/src/jexer/TCalendar.java @@ -0,0 +1,324 @@ +/* + * Jexer - Java Text User Interface + * + * The MIT License (MIT) + * + * Copyright (C) 2019 Kevin Lamonte + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * @author Kevin Lamonte [kevin.lamonte@gmail.com] + * @version 1 + */ +package jexer; + +import java.util.Calendar; +import java.util.GregorianCalendar; + +import jexer.bits.CellAttributes; +import jexer.bits.GraphicsChars; +import jexer.bits.StringUtils; +import jexer.event.TKeypressEvent; +import jexer.event.TMouseEvent; +import static jexer.TKeypress.*; + +/** + * TCalendar is a date picker widget. + */ +public class TCalendar extends TWidget { + + // ------------------------------------------------------------------------ + // Variables -------------------------------------------------------------- + // ------------------------------------------------------------------------ + + /** + * The calendar being displayed. + */ + private GregorianCalendar displayCalendar = new GregorianCalendar(); + + /** + * The calendar with the selected day. + */ + private GregorianCalendar calendar = new GregorianCalendar(); + + /** + * The action to perform when the user changes the value of the calendar. + */ + private TAction updateAction = null; + + // ------------------------------------------------------------------------ + // Constructors ----------------------------------------------------------- + // ------------------------------------------------------------------------ + + /** + * Public constructor. + * + * @param parent parent widget + * @param x column relative to parent + * @param y row relative to parent + * @param updateAction action to call when the user changes the value of + * the calendar + */ + public TCalendar(final TWidget parent, final int x, final int y, + final TAction updateAction) { + + // Set parent and window + super(parent, x, y, 28, 8); + + this.updateAction = updateAction; + } + + // ------------------------------------------------------------------------ + // Event handlers --------------------------------------------------------- + // ------------------------------------------------------------------------ + + /** + * Returns true if the mouse is currently on the left arrow. + * + * @param mouse mouse event + * @return true if the mouse is currently on the left arrow + */ + private boolean mouseOnLeftArrow(final TMouseEvent mouse) { + if ((mouse.getY() == 0) + && (mouse.getX() == 1) + ) { + return true; + } + return false; + } + + /** + * Returns true if the mouse is currently on the right arrow. + * + * @param mouse mouse event + * @return true if the mouse is currently on the right arrow + */ + private boolean mouseOnRightArrow(final TMouseEvent mouse) { + if ((mouse.getY() == 0) + && (mouse.getX() == getWidth() - 2) + ) { + return true; + } + return false; + } + + /** + * Handle mouse down clicks. + * + * @param mouse mouse button down event + */ + @Override + public void onMouseDown(final TMouseEvent mouse) { + if ((mouseOnLeftArrow(mouse)) && (mouse.isMouse1())) { + displayCalendar.add(Calendar.MONTH, -1); + } else if ((mouseOnRightArrow(mouse)) && (mouse.isMouse1())) { + displayCalendar.add(Calendar.MONTH, 1); + } else if (mouse.isMouse1()) { + // Find the day this might correspond to, and set it. + int index = (mouse.getY() - 2) * 7 + (mouse.getX() / 4) + 1; + // System.err.println("index: " + index); + + int lastDayNumber = displayCalendar.getActualMaximum( + Calendar.DAY_OF_MONTH); + GregorianCalendar firstOfMonth = new GregorianCalendar(); + firstOfMonth.setTimeInMillis(displayCalendar.getTimeInMillis()); + firstOfMonth.set(Calendar.DAY_OF_MONTH, 1); + int dayOf1st = firstOfMonth.get(Calendar.DAY_OF_WEEK) - 1; + // System.err.println("dayOf1st: " + dayOf1st); + + int day = index - dayOf1st; + // System.err.println("day: " + day); + + if ((day < 1) || (day > lastDayNumber)) { + return; + } + calendar.setTimeInMillis(displayCalendar.getTimeInMillis()); + calendar.set(Calendar.DAY_OF_MONTH, day); + } + } + + /** + * Handle mouse double click. + * + * @param mouse mouse double click event + */ + @Override + public void onMouseDoubleClick(final TMouseEvent mouse) { + if (updateAction != null) { + updateAction.DO(this); + } + } + + /** + * Handle keystrokes. + * + * @param keypress keystroke event + */ + @Override + public void onKeypress(final TKeypressEvent keypress) { + int increment = 0; + + if (keypress.equals(kbUp)) { + increment = -7; + } else if (keypress.equals(kbDown)) { + increment = 7; + } else if (keypress.equals(kbLeft)) { + increment = -1; + } else if (keypress.equals(kbRight)) { + increment = 1; + } else if (keypress.equals(kbEnter)) { + if (updateAction != null) { + updateAction.DO(this); + } + return; + } else { + // Pass to parent for the things we don't care about. + super.onKeypress(keypress); + return; + } + + if (increment != 0) { + calendar.add(Calendar.DAY_OF_YEAR, increment); + + if ((displayCalendar.get(Calendar.MONTH) != calendar.get( + Calendar.MONTH)) + || (displayCalendar.get(Calendar.YEAR) != calendar.get( + Calendar.YEAR)) + ) { + if (increment < 0) { + displayCalendar.add(Calendar.MONTH, -1); + } else { + displayCalendar.add(Calendar.MONTH, 1); + } + } + } + + } + + // ------------------------------------------------------------------------ + // TWidget ---------------------------------------------------------------- + // ------------------------------------------------------------------------ + + /** + * Draw the combobox down arrow. + */ + @Override + public void draw() { + CellAttributes backgroundColor = getTheme().getColor( + "tcalendar.background"); + CellAttributes dayColor = getTheme().getColor( + "tcalendar.day"); + CellAttributes selectedDayColor = getTheme().getColor( + "tcalendar.day.selected"); + CellAttributes arrowColor = getTheme().getColor( + "tcalendar.arrow"); + CellAttributes titleColor = getTheme().getColor( + "tcalendar.title"); + + // Fill in the interior background + for (int i = 0; i < getHeight(); i++) { + hLineXY(0, i, getWidth(), ' ', backgroundColor); + } + + // Draw the title + String title = String.format("%tB %tY", displayCalendar, + displayCalendar); + // This particular title is always single-width (see format string + // above), but for completeness let's treat it the same as every + // other window title string. + int titleLeft = (getWidth() - StringUtils.width(title) - 2) / 2; + putCharXY(titleLeft, 0, ' ', titleColor); + putStringXY(titleLeft + 1, 0, title, titleColor); + putCharXY(titleLeft + StringUtils.width(title) + 1, 0, ' ', + titleColor); + + // Arrows + putCharXY(1, 0, GraphicsChars.LEFTARROW, arrowColor); + putCharXY(getWidth() - 2, 0, GraphicsChars.RIGHTARROW, + arrowColor); + + /* + * Now draw out the days. + */ + putStringXY(0, 1, " S M T W T F S ", dayColor); + int lastDayNumber = displayCalendar.getActualMaximum( + Calendar.DAY_OF_MONTH); + GregorianCalendar firstOfMonth = new GregorianCalendar(); + firstOfMonth.setTimeInMillis(displayCalendar.getTimeInMillis()); + firstOfMonth.set(Calendar.DAY_OF_MONTH, 1); + int dayOf1st = firstOfMonth.get(Calendar.DAY_OF_WEEK) - 1; + int dayColumn = dayOf1st * 4; + int row = 2; + + int dayOfMonth = 1; + while (dayOfMonth <= lastDayNumber) { + if (dayColumn == 4 * 7) { + dayColumn = 0; + row++; + } + if ((dayOfMonth == calendar.get(Calendar.DAY_OF_MONTH)) + && (displayCalendar.get(Calendar.MONTH) == calendar.get( + Calendar.MONTH)) + && (displayCalendar.get(Calendar.YEAR) == calendar.get( + Calendar.YEAR)) + ) { + putStringXY(dayColumn, row, + String.format(" %2d ", dayOfMonth), selectedDayColor); + } else { + putStringXY(dayColumn, row, + String.format(" %2d ", dayOfMonth), dayColor); + } + dayColumn += 4; + dayOfMonth++; + } + + } + + // ------------------------------------------------------------------------ + // TCalendar -------------------------------------------------------------- + // ------------------------------------------------------------------------ + + /** + * Get calendar value. + * + * @return the current calendar value (clone instance) + */ + public Calendar getValue() { + return (Calendar) calendar.clone(); + } + + /** + * Set calendar value. + * + * @param calendar the new value to use + */ + public final void setValue(final Calendar calendar) { + this.calendar.setTimeInMillis(calendar.getTimeInMillis()); + } + + /** + * Set calendar value. + * + * @param millis the millis to set to + */ + public final void setValue(final long millis) { + this.calendar.setTimeInMillis(millis); + } + +}