X-Git-Url: http://git.nikiroo.be/?a=blobdiff_plain;ds=sidebyside;f=src%2Fjexer%2FTHScroller.java;h=a07bcd7a52b7636949e57948892d395cba41bcf9;hb=8a1cae77d279cc246a68109f6178b2bb05e7471f;hp=eb7256bcab8e8f181185e9e50c03453db9f9b6db;hpb=8582f35a3ffb8212463076217eb89278f42331d4;p=fanfix.git diff --git a/src/jexer/THScroller.java b/src/jexer/THScroller.java deleted file mode 100644 index eb7256b..0000000 --- a/src/jexer/THScroller.java +++ /dev/null @@ -1,327 +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 jexer.bits.CellAttributes; -import jexer.bits.GraphicsChars; -import jexer.event.TMouseEvent; - -/** - * THScroller implements a simple horizontal scroll bar. - */ -public final class THScroller extends TWidget { - - /** - * Value that corresponds to being on the left edge of the scroll bar. - */ - private int leftValue = 0; - - /** - * Get the value that corresponds to being on the left edge of the scroll - * bar. - * - * @return the scroll value - */ - public int getLeftValue() { - return leftValue; - } - - /** - * Set the value that corresponds to being on the left edge of the - * scroll bar. - * - * @param leftValue the new scroll value - */ - public void setLeftValue(final int leftValue) { - this.leftValue = leftValue; - } - - /** - * Value that corresponds to being on the right edge of the scroll bar. - */ - private int rightValue = 100; - - /** - * Get the value that corresponds to being on the right edge of the - * scroll bar. - * - * @return the scroll value - */ - public int getRightValue() { - return rightValue; - } - - /** - * Set the value that corresponds to being on the right edge of the - * scroll bar. - * - * @param rightValue the new scroll value - */ - public void setRightValue(final int rightValue) { - this.rightValue = rightValue; - } - - /** - * Current value of the scroll. - */ - private int value = 0; - - /** - * Get current value of the scroll. - * - * @return the scroll value - */ - public int getValue() { - return value; - } - - /** - * Set current value of the scroll. - * - * @param value the new scroll value - */ - public void setValue(final int value) { - this.value = value; - } - - /** - * The increment for clicking on an arrow. - */ - private int smallChange = 1; - - /** - * Set the increment for clicking on an arrow. - * - * @param smallChange the new increment value - */ - public void setSmallChange(final int smallChange) { - this.smallChange = smallChange; - } - - /** - * The increment for clicking in the bar between the box and an arrow. - */ - private int bigChange = 20; - - /** - * Set the increment for clicking in the bar between the box and an - * arrow. - * - * @param bigChange the new increment value - */ - public void setBigChange(final int bigChange) { - this.bigChange = bigChange; - } - - /** - * When true, the user is dragging the scroll box. - */ - private boolean inScroll = false; - - /** - * Public constructor. - * - * @param parent parent widget - * @param x column relative to parent - * @param y row relative to parent - * @param width height of scroll bar - */ - public THScroller(final TWidget parent, final int x, final int y, - final int width) { - - // Set parent and window - super(parent, x, y, width, 1); - } - - /** - * Compute the position of the scroll box (a.k.a. grip, thumb). - * - * @return Y position of the box, between 1 and width - 2 - */ - private int boxPosition() { - return (getWidth() - 3) * (value - leftValue) / (rightValue - leftValue) + 1; - } - - /** - * Draw a horizontal scroll bar. - */ - @Override - public void draw() { - CellAttributes arrowColor = getTheme().getColor("tscroller.arrows"); - CellAttributes barColor = getTheme().getColor("tscroller.bar"); - getScreen().putCharXY(0, 0, GraphicsChars.CP437[0x11], arrowColor); - getScreen().putCharXY(getWidth() - 1, 0, GraphicsChars.CP437[0x10], - arrowColor); - - // Place the box - if (rightValue > leftValue) { - getScreen().hLineXY(1, 0, getWidth() - 2, GraphicsChars.CP437[0xB1], - barColor); - getScreen().putCharXY(boxPosition(), 0, GraphicsChars.BOX, - arrowColor); - } else { - getScreen().hLineXY(1, 0, getWidth() - 2, GraphicsChars.HATCH, - barColor); - } - - } - - /** - * Perform a small step change left. - */ - public void decrement() { - if (leftValue == rightValue) { - return; - } - value -= smallChange; - if (value < leftValue) { - value = leftValue; - } - } - - /** - * Perform a small step change right. - */ - public void increment() { - if (leftValue == rightValue) { - return; - } - value += smallChange; - if (value > rightValue) { - value = rightValue; - } - } - - /** - * Handle mouse button releases. - * - * @param mouse mouse button release event - */ - @Override - public void onMouseUp(final TMouseEvent mouse) { - - if (inScroll) { - inScroll = false; - return; - } - - if (rightValue == leftValue) { - return; - } - - if ((mouse.getX() == 0) - && (mouse.getY() == 0) - ) { - // Clicked on the left arrow - decrement(); - return; - } - - if ((mouse.getY() == 0) - && (mouse.getX() == getWidth() - 1) - ) { - // Clicked on the right arrow - increment(); - return; - } - - if ((mouse.getY() == 0) - && (mouse.getX() > 0) - && (mouse.getX() < boxPosition()) - ) { - // Clicked between the left arrow and the box - value -= bigChange; - if (value < leftValue) { - value = leftValue; - } - return; - } - - if ((mouse.getY() == 0) - && (mouse.getX() > boxPosition()) - && (mouse.getX() < getWidth() - 1) - ) { - // Clicked between the box and the right arrow - value += bigChange; - if (value > rightValue) { - value = rightValue; - } - return; - } - } - - /** - * Handle mouse movement events. - * - * @param mouse mouse motion event - */ - @Override - public void onMouseMotion(final TMouseEvent mouse) { - - if (rightValue == leftValue) { - inScroll = false; - return; - } - - if ((mouse.isMouse1()) - && (inScroll) - && (mouse.getX() > 0) - && (mouse.getX() < getWidth() - 1) - ) { - // Recompute value based on new box position - value = (rightValue - leftValue) * (mouse.getX()) / (getWidth() - 3) + leftValue; - return; - } - inScroll = false; - } - - /** - * Handle mouse button press events. - * - * @param mouse mouse button press event - */ - @Override - public void onMouseDown(final TMouseEvent mouse) { - if (rightValue == leftValue) { - inScroll = false; - return; - } - - if ((mouse.getY() == 0) - && (mouse.getX() == boxPosition()) - ) { - inScroll = true; - return; - } - - } - -}