mirror of
https://github.com/GTNewHorizons/Chisel.git
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tterrag1098
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113 lines
2.9 KiB
Java
113 lines
2.9 KiB
Java
package com.cricketcraft.chisel.client.gui;
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import net.minecraft.client.Minecraft;
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import net.minecraft.client.gui.Gui;
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import net.minecraft.client.renderer.Tessellator;
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import org.lwjgl.opengl.GL11;
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public class GuilScrolledBox extends GuiElement {
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public int offset = 0;
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int contentHeight = 0;
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int scrollingStart = -1;
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public GuilScrolledBox(int x, int y, int w, int h) {
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super(x, y, w, h);
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}
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int x0, x1;
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protected void overlayBackground(int start, int end, int color, int a1, int a2) {
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Tessellator tessellator = Tessellator.instance;
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float f = 32.0F;
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tessellator.startDrawingQuads();
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tessellator.setColorRGBA_I(color, a2);
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tessellator.addVertexWithUV(x0, end, 0.0D, 0.0D, end / f);
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tessellator.addVertexWithUV(x1, end, 0.0D, gui.width / f, end / f);
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tessellator.setColorRGBA_I(color, a1);
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tessellator.addVertexWithUV(x1, start, 0.0D, gui.width / f, start / f);
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tessellator.addVertexWithUV(x0, start, 0.0D, 0.0D, start / f);
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tessellator.draw();
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}
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@Override
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public GuiElement addChild(GuiElement e) {
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int childBottom = e.y + e.h - 18;
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if (childBottom > contentHeight)
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contentHeight = childBottom;
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return super.addChild(e);
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}
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@Override
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public void render() {
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GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
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Minecraft.getMinecraft().getTextureManager().bindTexture(Gui.optionsBackground);
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x0 = -gui.screenX;
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x1 = -gui.screenX + gui.width;
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overlayBackground(y, h, 0x202020, 0xff, 0xff);
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GL11.glPushMatrix();
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GL11.glTranslatef(0.0f, offset, 0.0f);
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super.render();
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GL11.glPopMatrix();
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GL11.glEnable(GL11.GL_BLEND);
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GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
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GL11.glDisable(GL11.GL_ALPHA_TEST);
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GL11.glShadeModel(GL11.GL_SMOOTH);
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GL11.glDisable(GL11.GL_TEXTURE_2D);
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overlayBackground(y, y + 8, 0x000000, 0xff, 0x00);
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overlayBackground(h - 8, h, 0x000000, 0x00, 0xff);
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GL11.glEnable(GL11.GL_TEXTURE_2D);
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GL11.glShadeModel(GL11.GL_FLAT);
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GL11.glEnable(GL11.GL_ALPHA_TEST);
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GL11.glDisable(GL11.GL_BLEND);
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Minecraft.getMinecraft().getTextureManager().bindTexture(Gui.optionsBackground);
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overlayBackground(-gui.screenY, y, 0x404040, 0xff, 0xff);
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overlayBackground(h, -gui.screenY + gui.height, 0x404040, 0xff, 0xff);
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}
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@Override
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public void mouseMove(InputMouseEvent ev) {
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if (scrollingStart != -1) {
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offset = ev.y - scrollingStart;
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if (offset > contentHeight)
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offset = contentHeight;
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if (offset < -contentHeight)
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offset = -contentHeight;
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}
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ev.y -= offset;
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super.mouseMove(ev);
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ev.y += offset;
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}
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@Override
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public void mouseDown(InputMouseEvent ev) {
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scrollingStart = ev.y - offset;
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if (ev.y >= y && ev.y < y + h) {
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ev.y -= offset;
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super.mouseDown(ev);
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ev.y += offset;
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}
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}
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@Override
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public void mouseUp(InputMouseEvent ev) {
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scrollingStart = -1;
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if (ev.y >= y && ev.y < y + h) {
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ev.y -= offset;
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super.mouseUp(ev);
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ev.y += offset;
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}
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}
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}
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