Sebastian Hartte
138 lines
4.0 KiB
Java
138 lines
4.0 KiB
Java
/*
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* This file is part of Applied Energistics 2.
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* Copyright (c) 2013 - 2014, AlgorithmX2, All rights reserved.
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*
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* Applied Energistics 2 is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Applied Energistics 2 is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Applied Energistics 2. If not, see <http://www.gnu.org/licenses/lgpl>.
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*/
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package appeng.client.gui.widgets;
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import com.mojang.blaze3d.systems.RenderSystem;
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import net.minecraft.client.gui.DrawableHelper;
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import net.minecraft.client.util.math.MatrixStack;
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import appeng.client.gui.AEBaseScreen;
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public class Scrollbar implements IScrollSource {
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private int displayX = 0;
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private int displayY = 0;
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private int width = 12;
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private int height = 16;
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private int pageSize = 1;
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private int maxScroll = 0;
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private int minScroll = 0;
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private int currentScroll = 0;
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private final DrawableHelper drawable = new DrawableHelper() {
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};
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public void draw(MatrixStack matrices, final AEBaseScreen<?> g) {
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g.bindTexture("minecraft", "gui/container/creative_inventory/tabs.png");
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RenderSystem.color4f(1.0f, 1.0f, 1.0f, 1.0f);
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drawable.setZOffset(g.getZOffset());
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if (this.getRange() == 0) {
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drawable.drawTexture(matrices, this.displayX, this.displayY, 232 + this.width, 0, this.width, 15);
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} else {
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final int offset = (this.currentScroll - this.minScroll) * (this.height - 15) / this.getRange();
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drawable.drawTexture(matrices, this.displayX, offset + this.displayY, 232, 0, this.width, 15);
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}
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}
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private int getRange() {
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return this.maxScroll - this.minScroll;
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}
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public int getLeft() {
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return this.displayX;
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}
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public Scrollbar setLeft(final int v) {
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this.displayX = v;
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return this;
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}
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public int getTop() {
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return this.displayY;
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}
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public Scrollbar setTop(final int v) {
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this.displayY = v;
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return this;
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}
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public int getWidth() {
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return this.width;
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}
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public Scrollbar setWidth(final int v) {
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this.width = v;
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return this;
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}
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public int getHeight() {
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return this.height;
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}
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public Scrollbar setHeight(final int v) {
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this.height = v;
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return this;
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}
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public void setRange(final int min, final int max, final int pageSize) {
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this.minScroll = min;
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this.maxScroll = max;
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this.pageSize = pageSize;
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if (this.minScroll > this.maxScroll) {
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this.maxScroll = this.minScroll;
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}
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this.applyRange();
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}
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private void applyRange() {
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this.currentScroll = Math.max(Math.min(this.currentScroll, this.maxScroll), this.minScroll);
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}
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@Override
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public int getCurrentScroll() {
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return this.currentScroll;
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}
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public void click(final double x, final double y) {
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if (this.getRange() == 0) {
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return;
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}
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if (x > this.displayX && x <= this.displayX + this.width) {
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if (y > this.displayY && y <= this.displayY + this.height) {
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this.currentScroll = (int) (y - this.displayY);
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this.currentScroll = this.minScroll + ((this.currentScroll * 2 * this.getRange() / this.height));
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this.currentScroll = (this.currentScroll + 1) >> 1;
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this.applyRange();
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}
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}
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}
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public void wheel(double delta) {
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delta = Math.max(Math.min(-delta, 1), -1);
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this.currentScroll += delta * this.pageSize;
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this.applyRange();
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}
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}
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