+++ /dev/null
-/*
- * Jexer - Java Text User Interface
- *
- * License: LGPLv3 or later
- *
- * This module is licensed under the GNU Lesser General Public License
- * Version 3. Please see the file "COPYING" in this directory for more
- * information about the GNU Lesser General Public License Version 3.
- *
- * Copyright (C) 2015 Kevin Lamonte
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License
- * as published by the Free Software Foundation; either version 3 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this program; if not, see
- * http://www.gnu.org/licenses/, or write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- * @author Kevin Lamonte [kevin.lamonte@gmail.com]
- * @version 1
- */
-package jexer;
-
-import jexer.bits.CellAttributes;
-import jexer.bits.Color;
-import jexer.bits.GraphicsChars;
-import jexer.bits.MnemonicString;
-import jexer.event.TKeypressEvent;
-import jexer.event.TMouseEvent;
-import static jexer.TKeypress.*;
-
-/**
- * TButton implements a simple button. To make the button do something, pass
- * a TAction class to its constructor.
- *
- * @see TAction#DO()
- */
-public final class TButton extends TWidget {
-
- /**
- * The shortcut and button text.
- */
- private MnemonicString mnemonic;
-
- /**
- * Get the mnemonic string for this button.
- *
- * @return mnemonic string
- */
- public final MnemonicString getMnemonic() {
- return mnemonic;
- }
-
- /**
- * Remember mouse state.
- */
- private TMouseEvent mouse;
-
- /**
- * True when the button is being pressed and held down.
- */
- private boolean inButtonPress = false;
-
- /**
- * The action to perform when the button is clicked.
- */
- private TAction action;
-
- /**
- * Private constructor.
- *
- * @param parent parent widget
- * @param text label on the button
- * @param x column relative to parent
- * @param y row relative to parent
- */
- private TButton(final TWidget parent, final String text,
- final int x, final int y) {
-
- // Set parent and window
- super(parent);
-
- mnemonic = new MnemonicString(text);
-
- setX(x);
- setY(y);
- setHeight(2);
- setWidth(mnemonic.getRawLabel().length() + 3);
- }
-
- /**
- * Public constructor.
- *
- * @param parent parent widget
- * @param text label on the button
- * @param x column relative to parent
- * @param y row relative to parent
- * @param action to call when button is pressed
- */
- public TButton(final TWidget parent, final String text,
- final int x, final int y, final TAction action) {
-
- this(parent, text, x, y);
- this.action = action;
- }
-
- /**
- * Returns true if the mouse is currently on the button.
- *
- * @return if true the mouse is currently on the button
- */
- private boolean mouseOnButton() {
- int rightEdge = getWidth() - 1;
- if (inButtonPress) {
- rightEdge++;
- }
- if ((mouse != null)
- && (mouse.getY() == 0)
- && (mouse.getX() >= 0)
- && (mouse.getX() < rightEdge)
- ) {
- return true;
- }
- return false;
- }
-
- /**
- * Draw a button with a shadow.
- */
- @Override
- public void draw() {
- CellAttributes buttonColor;
- CellAttributes menuMnemonicColor;
- CellAttributes shadowColor = new CellAttributes();
- shadowColor.setTo(getWindow().getBackground());
- shadowColor.setForeColor(Color.BLACK);
- shadowColor.setBold(false);
-
- if (!isEnabled()) {
- buttonColor = getTheme().getColor("tbutton.disabled");
- menuMnemonicColor = getTheme().getColor("tbutton.disabled");
- } else if (isAbsoluteActive()) {
- buttonColor = getTheme().getColor("tbutton.active");
- menuMnemonicColor = getTheme().getColor("tbutton.mnemonic.highlighted");
- } else {
- buttonColor = getTheme().getColor("tbutton.inactive");
- menuMnemonicColor = getTheme().getColor("tbutton.mnemonic");
- }
-
- if (inButtonPress) {
- getScreen().putCharXY(1, 0, ' ', buttonColor);
- getScreen().putStringXY(2, 0, mnemonic.getRawLabel(), buttonColor);
- getScreen().putCharXY(getWidth() - 1, 0, ' ', buttonColor);
- } else {
- getScreen().putCharXY(0, 0, ' ', buttonColor);
- getScreen().putStringXY(1, 0, mnemonic.getRawLabel(), buttonColor);
- getScreen().putCharXY(getWidth() - 2, 0, ' ', buttonColor);
-
- getScreen().putCharXY(getWidth() - 1, 0,
- GraphicsChars.CP437[0xDC], shadowColor);
- getScreen().hLineXY(1, 1, getWidth() - 1,
- GraphicsChars.CP437[0xDF], shadowColor);
- }
- if (mnemonic.getShortcutIdx() >= 0) {
- if (inButtonPress) {
- getScreen().putCharXY(2 + mnemonic.getShortcutIdx(), 0,
- mnemonic.getShortcut(), menuMnemonicColor);
- } else {
- getScreen().putCharXY(1 + mnemonic.getShortcutIdx(), 0,
- mnemonic.getShortcut(), menuMnemonicColor);
- }
-
- }
- }
-
- /**
- * Handle mouse button presses.
- *
- * @param mouse mouse button event
- */
- @Override
- public void onMouseDown(final TMouseEvent mouse) {
- this.mouse = mouse;
-
- if ((mouseOnButton()) && (mouse.isMouse1())) {
- // Begin button press
- inButtonPress = true;
- }
- }
-
- /**
- * Handle mouse button releases.
- *
- * @param mouse mouse button release event
- */
- @Override
- public void onMouseUp(final TMouseEvent mouse) {
- this.mouse = mouse;
-
- if (inButtonPress && mouse.isMouse1()) {
- inButtonPress = false;
- // Dispatch the event
- if (action != null) {
- action.DO();
- }
- }
-
- }
-
- /**
- * Handle mouse movements.
- *
- * @param mouse mouse motion event
- */
- @Override
- public void onMouseMotion(final TMouseEvent mouse) {
- this.mouse = mouse;
-
- if (!mouseOnButton()) {
- inButtonPress = false;
- }
- }
-
- /**
- * Handle keystrokes.
- *
- * @param keypress keystroke event
- */
- @Override
- public void onKeypress(final TKeypressEvent keypress) {
- if (keypress.equals(kbEnter)
- || keypress.equals(kbSpace)
- ) {
- // Dispatch
- if (action != null) {
- action.DO();
- }
- return;
- }
-
- // Pass to parent for the things we don't care about.
- super.onKeypress(keypress);
- }
-
-}
git://git.nikiroo.be / nikiroo-utils.git / blobdiff