GuiLabel backport

src/main/java/com/falsepattern/lib/compat/GuiLabel.java

@@ -0,0 +1,106 @@
+package com.falsepattern.lib.compat;
+
+import com.google.common.collect.Lists;
+import java.util.List;
+
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.FontRenderer;
+import net.minecraft.client.gui.Gui;
+import net.minecraft.client.renderer.OpenGlHelper;
+import net.minecraft.client.resources.I18n;
+import org.lwjgl.opengl.GL11;
+
+@SideOnly(Side.CLIENT)
+public class GuiLabel extends Gui
+{
+    protected int width;
+    protected int height;
+    public int x;
+    public int y;
+    private final List<String> labels;
+    public int id;
+    private boolean centered;
+    public boolean visible = true;
+    private final boolean labelBgEnabled;
+    private final int textColor;
+    private final int backColor;
+    private final int ulColor;
+    private final int brColor;
+    private final FontRenderer fontRenderer;
+    private final int border;
+
+    public GuiLabel(FontRenderer fontRendererObj, int p_i45540_2_, int p_i45540_3_, int p_i45540_4_, int p_i45540_5_, int p_i45540_6_, int p_i45540_7_)
+    {
+        this.fontRenderer = fontRendererObj;
+        this.id = p_i45540_2_;
+        this.x = p_i45540_3_;
+        this.y = p_i45540_4_;
+        this.width = p_i45540_5_;
+        this.height = p_i45540_6_;
+        this.labels = Lists.newArrayList();
+        this.centered = false;
+        this.labelBgEnabled = false;
+        this.textColor = p_i45540_7_;
+        this.backColor = -1;
+        this.ulColor = -1;
+        this.brColor = -1;
+        this.border = 0;
+    }
+
+    public void addLine(String p_175202_1_)
+    {
+        this.labels.add(I18n.format(p_175202_1_));
+    }
+
+    /**
+     * Sets the Label to be centered
+     */
+    public GuiLabel setCentered()
+    {
+        this.centered = true;
+        return this;
+    }
+
+    public void drawLabel(Minecraft mc, int mouseX, int mouseY)
+    {
+        if (this.visible)
+        {
+            GL11.glEnable(GL11.GL_BLEND);
+            OpenGlHelper.glBlendFunc(770, 771, 1, 0);
+            GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
+            this.drawLabelBackground(mc, mouseX, mouseY);
+            int i = this.y + this.height / 2 + this.border / 2;
+            int j = i - this.labels.size() * 10 / 2;
+
+            for (int k = 0; k < this.labels.size(); ++k)
+            {
+                if (this.centered)
+                {
+                    this.drawCenteredString(this.fontRenderer, this.labels.get(k), this.x + this.width / 2, j + k * 10, this.textColor);
+                }
+                else
+                {
+                    this.drawString(this.fontRenderer, this.labels.get(k), this.x, j + k * 10, this.textColor);
+                }
+            }
+        }
+    }
+
+    protected void drawLabelBackground(Minecraft mcIn, int mouseX, int mouseY)
+    {
+        if (this.labelBgEnabled)
+        {
+            int i = this.width + this.border * 2;
+            int j = this.height + this.border * 2;
+            int k = this.x - this.border;
+            int l = this.y - this.border;
+            drawRect(k, l, k + i, l + j, this.backColor);
+            this.drawHorizontalLine(k, k + i, l, this.ulColor);
+            this.drawHorizontalLine(k, k + i, l + j, this.brColor);
+            this.drawVerticalLine(k, l, l + j, this.ulColor);
+            this.drawVerticalLine(k + i, l, l + j, this.brColor);
+        }
+    }
+}