X-Git-Url: http://git.nikiroo.be/?a=blobdiff_plain;f=src%2Fjexer%2FTList.java;h=38a994c8215bbba2a53e3c85d0b15bd46c099146;hb=738dd8c426dcc6ed2508d68b7985f68d66549889;hp=e069db7650ab8212e2517ce1f6888028c102d342;hpb=3649b9210ea425f398ba8c24f9509669cf72aa96;p=nikiroo-utils.git diff --git a/src/jexer/TList.java b/src/jexer/TList.java deleted file mode 100644 index e069db7..0000000 --- a/src/jexer/TList.java +++ /dev/null @@ -1,447 +0,0 @@ -/* - * 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 java.util.ArrayList; -import java.util.List; - -import jexer.bits.CellAttributes; -import jexer.event.TKeypressEvent; -import jexer.event.TMouseEvent; -import static jexer.TKeypress.*; - -/** - * TList shows a list of strings, and lets the user select one. - */ -public class TList extends TWidget { - - /** - * The list of strings to display. - */ - private List strings; - - /** - * Selected string. - */ - private int selectedString = -1; - - /** - * Get the selection index. - * - * @return -1 if nothing is selected, otherwise the index into the list - */ - public final int getSelectedIndex() { - return selectedString; - } - - /** - * Set the selected string index. - * - * @param index -1 to unselect, otherwise the index into the list - */ - public final void setSelectedIndex(final int index) { - selectedString = index; - } - - /** - * Get the selected string. - * - * @return the selected string, or null of nothing is selected yet - */ - public final String getSelected() { - if ((selectedString >= 0) && (selectedString <= strings.size() - 1)) { - return strings.get(selectedString); - } - return null; - } - - /** - * Set the new list of strings to display. - * - * @param list new list of strings - */ - public final void setList(final List list) { - strings.clear(); - strings.addAll(list); - reflow(); - } - - /** - * Vertical scrollbar. - */ - private TVScroller vScroller; - - /** - * Get the vertical scrollbar. This is used by subclasses. - * - * @return the vertical scrollbar - */ - public final TVScroller getVScroller() { - return vScroller; - } - - /** - * Horizontal scrollbar. - */ - private THScroller hScroller; - - /** - * Get the horizontal scrollbar. This is used by subclasses. - * - * @return the horizontal scrollbar - */ - public final THScroller getHScroller() { - return hScroller; - } - - /** - * Maximum width of a single line. - */ - private int maxLineWidth; - - /** - * The action to perform when the user selects an item (clicks or enter). - */ - private TAction enterAction = null; - - /** - * The action to perform when the user navigates with keyboard. - */ - private TAction moveAction = null; - - /** - * Perform user selection action. - */ - public void dispatchEnter() { - assert (selectedString >= 0); - assert (selectedString < strings.size()); - if (enterAction != null) { - enterAction.DO(); - } - } - - /** - * Perform list movement action. - */ - public void dispatchMove() { - assert (selectedString >= 0); - assert (selectedString < strings.size()); - if (moveAction != null) { - moveAction.DO(); - } - } - - /** - * Resize for a new width/height. - */ - public void reflow() { - - // Reset the lines - selectedString = -1; - maxLineWidth = 0; - - for (int i = 0; i < strings.size(); i++) { - String line = strings.get(i); - if (line.length() > maxLineWidth) { - maxLineWidth = line.length(); - } - } - - // Start at the top - if (vScroller == null) { - vScroller = new TVScroller(this, getWidth() - 1, 0, - getHeight() - 1); - } else { - vScroller.setX(getWidth() - 1); - vScroller.setHeight(getHeight() - 1); - } - vScroller.setBottomValue(strings.size() - getHeight() + 1); - vScroller.setTopValue(0); - vScroller.setValue(0); - if (vScroller.getBottomValue() < 0) { - vScroller.setBottomValue(0); - } - vScroller.setBigChange(getHeight() - 1); - - // Start at the left - if (hScroller == null) { - hScroller = new THScroller(this, 0, getHeight() - 1, - getWidth() - 1); - } else { - hScroller.setY(getHeight() - 1); - hScroller.setWidth(getWidth() - 1); - } - hScroller.setRightValue(maxLineWidth - getWidth() + 1); - hScroller.setLeftValue(0); - hScroller.setValue(0); - if (hScroller.getRightValue() < 0) { - hScroller.setRightValue(0); - } - hScroller.setBigChange(getWidth() - 1); - } - - /** - * Public constructor. - * - * @param parent parent widget - * @param strings list of strings to show - * @param x column relative to parent - * @param y row relative to parent - * @param width width of text area - * @param height height of text area - */ - public TList(final TWidget parent, final List strings, final int x, - final int y, final int width, final int height) { - - this(parent, strings, x, y, width, height, null); - } - - /** - * Public constructor. - * - * @param parent parent widget - * @param strings list of strings to show. This is allowed to be null - * and set later with setList() or by subclasses. - * @param x column relative to parent - * @param y row relative to parent - * @param width width of text area - * @param height height of text area - * @param enterAction action to perform when an item is selected - */ - public TList(final TWidget parent, final List strings, final int x, - final int y, final int width, final int height, - final TAction enterAction) { - - super(parent, x, y, width, height); - this.enterAction = enterAction; - this.strings = new ArrayList(); - if (strings != null) { - this.strings.addAll(strings); - } - reflow(); - } - - /** - * Public constructor. - * - * @param parent parent widget - * @param strings list of strings to show. This is allowed to be null - * and set later with setList() or by subclasses. - * @param x column relative to parent - * @param y row relative to parent - * @param width width of text area - * @param height height of text area - * @param enterAction action to perform when an item is selected - * @param moveAction action to perform when the user navigates to a new - * item with arrow/page keys - */ - public TList(final TWidget parent, final List strings, final int x, - final int y, final int width, final int height, - final TAction enterAction, final TAction moveAction) { - - super(parent, x, y, width, height); - this.enterAction = enterAction; - this.moveAction = moveAction; - this.strings = new ArrayList(); - if (strings != null) { - this.strings.addAll(strings); - } - reflow(); - } - - /** - * Draw the files list. - */ - @Override - public void draw() { - CellAttributes color = null; - int begin = vScroller.getValue(); - int topY = 0; - for (int i = begin; i < strings.size(); i++) { - String line = strings.get(i); - if (hScroller.getValue() < line.length()) { - line = line.substring(hScroller.getValue()); - } else { - line = ""; - } - if (i == selectedString) { - color = getTheme().getColor("tlist.selected"); - } else if (isAbsoluteActive()) { - color = getTheme().getColor("tlist"); - } else { - color = getTheme().getColor("tlist.inactive"); - } - String formatString = "%-" + Integer.toString(getWidth() - 1) + "s"; - getScreen().putStringXY(0, topY, String.format(formatString, line), - color); - topY++; - if (topY >= getHeight() - 1) { - break; - } - } - - if (isAbsoluteActive()) { - color = getTheme().getColor("tlist"); - } else { - color = getTheme().getColor("tlist.inactive"); - } - - // Pad the rest with blank lines - for (int i = topY; i < getHeight() - 1; i++) { - getScreen().hLineXY(0, i, getWidth() - 1, ' ', color); - } - } - - /** - * Handle mouse press events. - * - * @param mouse mouse button press event - */ - @Override - public void onMouseDown(final TMouseEvent mouse) { - if (mouse.isMouseWheelUp()) { - vScroller.decrement(); - return; - } - if (mouse.isMouseWheelDown()) { - vScroller.increment(); - return; - } - - if ((mouse.getX() < getWidth() - 1) - && (mouse.getY() < getHeight() - 1)) { - if (vScroller.getValue() + mouse.getY() < strings.size()) { - selectedString = vScroller.getValue() + mouse.getY(); - } - dispatchEnter(); - return; - } - - // Pass to children - super.onMouseDown(mouse); - } - - /** - * Handle keystrokes. - * - * @param keypress keystroke event - */ - @Override - public void onKeypress(final TKeypressEvent keypress) { - if (keypress.equals(kbLeft)) { - hScroller.decrement(); - } else if (keypress.equals(kbRight)) { - hScroller.increment(); - } else if (keypress.equals(kbUp)) { - if (strings.size() > 0) { - if (selectedString >= 0) { - if (selectedString > 0) { - if (selectedString - vScroller.getValue() == 0) { - vScroller.decrement(); - } - selectedString--; - } - } else { - selectedString = strings.size() - 1; - } - } - if (selectedString >= 0) { - dispatchMove(); - } - } else if (keypress.equals(kbDown)) { - if (strings.size() > 0) { - if (selectedString >= 0) { - if (selectedString < strings.size() - 1) { - selectedString++; - if (selectedString - vScroller.getValue() == getHeight() - 1) { - vScroller.increment(); - } - } - } else { - selectedString = 0; - } - } - if (selectedString >= 0) { - dispatchMove(); - } - } else if (keypress.equals(kbPgUp)) { - vScroller.bigDecrement(); - if (selectedString >= 0) { - selectedString -= getHeight() - 1; - if (selectedString < 0) { - selectedString = 0; - } - } - if (selectedString >= 0) { - dispatchMove(); - } - } else if (keypress.equals(kbPgDn)) { - vScroller.bigIncrement(); - if (selectedString >= 0) { - selectedString += getHeight() - 1; - if (selectedString > strings.size() - 1) { - selectedString = strings.size() - 1; - } - } - if (selectedString >= 0) { - dispatchMove(); - } - } else if (keypress.equals(kbHome)) { - vScroller.toTop(); - if (strings.size() > 0) { - selectedString = 0; - } - if (selectedString >= 0) { - dispatchMove(); - } - } else if (keypress.equals(kbEnd)) { - vScroller.toBottom(); - if (strings.size() > 0) { - selectedString = strings.size() - 1; - } - if (selectedString >= 0) { - dispatchMove(); - } - } else if (keypress.equals(kbTab)) { - getParent().switchWidget(true); - } else if (keypress.equals(kbShiftTab) || keypress.equals(kbBackTab)) { - getParent().switchWidget(false); - } else if (keypress.equals(kbEnter)) { - if (selectedString >= 0) { - dispatchEnter(); - } - } else { - // Pass other keys (tab etc.) on - super.onKeypress(keypress); - } - } - -}