1 files changed, 120 insertions, 0 deletions
diff --git a/api/src/main/java/me/shedaniel/rei/api/client/favorites/CompoundFavoriteRenderer.java b/api/src/main/java/me/shedaniel/rei/api/client/favorites/CompoundFavoriteRenderer.java
new file mode 100644
index 000000000..623c37606
--- /dev/null
+++ b/api/src/main/java/me/shedaniel/rei/api/client/favorites/CompoundFavoriteRenderer.java
@@ -0,0 +1,120 @@
+/*
+ * This file is licensed under the MIT License, part of Roughly Enough Items.
+ * Copyright (c) 2018, 2019, 2020 shedaniel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package me.shedaniel.rei.api.client.favorites;
+
+import com.mojang.blaze3d.vertex.PoseStack;
+import com.mojang.math.Vector4f;
+import me.shedaniel.clothconfig2.api.ScissorsHandler;
+import me.shedaniel.math.Rectangle;
+import me.shedaniel.rei.api.client.gui.AbstractRenderer;
+import me.shedaniel.rei.api.client.gui.Renderer;
+import me.shedaniel.rei.api.common.util.Animator;
+import net.minecraft.Util;
+
+import java.util.List;
+import java.util.function.IntFunction;
+import java.util.function.IntSupplier;
+
+public class CompoundFavoriteRenderer extends AbstractRenderer {
+    protected Animator offset = new Animator(0);
+    protected Rectangle scissorArea = new Rectangle();
+    protected long nextSwitch = -1;
+    protected IntFunction<Renderer> renderers;
+    protected int count;
+    protected boolean showcase;
+    protected IntSupplier supplier;
+    
+    /**
+     * Showcase
+     */
+    public CompoundFavoriteRenderer(List<Renderer> renderers) {
+        this(true, renderers, null);
+    }
+    
+    /**
+     * Non showcase
+     */
+    public CompoundFavoriteRenderer(List<Renderer> renderers, IntSupplier supplier) {
+        this(false, renderers, supplier);
+    }
+    
+    public CompoundFavoriteRenderer(boolean showcase, List<Renderer> renderers, IntSupplier supplier) {
+        this(showcase, renderers.size(), renderers::get, supplier);
+    }
+    
+    /**
+     * Showcase
+     */
+    public CompoundFavoriteRenderer(int count, IntFunction<Renderer> renderers) {
+        this(true, count, renderers, null);
+    }
+    
+    /**
+     * Non showcase
+     */
+    public CompoundFavoriteRenderer(int count, IntFunction<Renderer> renderers, IntSupplier supplier) {
+        this(false, count, renderers, supplier);
+    }
+    
+    public CompoundFavoriteRenderer(boolean showcase, int count, IntFunction<Renderer> renderers, IntSupplier supplier) {
+        this.count = count;
+        this.showcase = showcase;
+        this.renderers = renderers;
+        this.supplier = supplier;
+    }
+    
+    @Override
+    public void render(PoseStack matrices, Rectangle bounds, int mouseX, int mouseY, float delta) {
+        updateAnimator(delta);
+        Vector4f vector4f = new Vector4f(bounds.x, bounds.y, 0, 1.0F);
+        vector4f.transform(matrices.last().pose());
+        Vector4f vector4f2 = new Vector4f(bounds.getMaxX(), bounds.getMaxY(), 0, 1.0F);
+        vector4f2.transform(matrices.last().pose());
+        scissorArea.setBounds((int) vector4f.x(), (int) vector4f.y(), (int) vector4f2.x() - (int) vector4f.x(), (int) vector4f2.y() - (int) vector4f.y());
+        ScissorsHandler.INSTANCE.scissor(scissorArea);
+        matrices.pushPose();
+        matrices.translate(0, this.offset.floatValue() * -bounds.getHeight(), 0);
+        for (int i = 0; i < count; i++) {
+            renderers.apply(i).render(matrices, bounds, mouseX, mouseY, delta);
+            matrices.translate(0, bounds.height, 0);
+        }
+        matrices.popPose();
+        ScissorsHandler.INSTANCE.removeLastScissor();
+    }
+    
+    private void updateAnimator(float delta) {
+        offset.update(delta);
+        if (showcase) {
+            if (nextSwitch == -1) {
+                nextSwitch = Util.getMillis();
+            }
+            if (Util.getMillis() - nextSwitch > 1000) {
+                nextSwitch = Util.getMillis();
+                offset.setTo(((int) offset.target() + 1) % count, 500);
+            }
+        } else {
+            offset.setTo(supplier.getAsInt() % count, 500);
+        }
+    }
+}