Adapt scissors to transform

2 files changed, 36 insertions, 0 deletions

diff --git a/api/src/main/java/me/shedaniel/rei/api/client/gui/widgets/CloseableScissors.java b/api/src/main/java/me/shedaniel/rei/api/client/gui/widgets/CloseableScissors.java
new file mode 100644
index 000000000..226c33ffc
--- /dev/null
+++ b/api/src/main/java/me/shedaniel/rei/api/client/gui/widgets/CloseableScissors.java
@@ -0,0 +1,12 @@
+package me.shedaniel.rei.api.client.gui.widgets;
+
+import org.jetbrains.annotations.ApiStatus;
+
+import java.io.Closeable;
+
+@ApiStatus.NonExtendable
+@ApiStatus.Experimental
+public interface CloseableScissors extends Closeable {
+    @Override
+    void close();
+}
diff --git a/api/src/main/java/me/shedaniel/rei/api/client/gui/widgets/Widget.java b/api/src/main/java/me/shedaniel/rei/api/client/gui/widgets/Widget.java
index 3c753e747..1c70c616d 100644
--- a/api/src/main/java/me/shedaniel/rei/api/client/gui/widgets/Widget.java
+++ b/api/src/main/java/me/shedaniel/rei/api/client/gui/widgets/Widget.java
@@ -26,6 +26,7 @@ package me.shedaniel.rei.api.client.gui.widgets;
 import com.mojang.blaze3d.vertex.PoseStack;
 import com.mojang.math.Matrix4f;
 import com.mojang.math.Vector4f;
+import me.shedaniel.clothconfig2.api.ScissorsHandler;
 import me.shedaniel.math.Point;
 import me.shedaniel.math.Rectangle;
 import me.shedaniel.math.impl.PointHelper;
@@ -35,7 +36,11 @@ import net.fabricmc.api.EnvType;
 import net.fabricmc.api.Environment;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.Font;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.Nullable;
 
+import java.io.Closeable;
+import java.io.IOException;
 import java.util.Stack;
 
 /**
@@ -115,4 +120,23 @@ public abstract class Widget extends AbstractContainerEventHandler implements ne
     public void render(PoseStack matrices, Rectangle bounds, int mouseX, int mouseY, float delta) {
         render(matrices, mouseX, mouseY, delta);
     }
+    
+    @ApiStatus.Experimental
+    public static CloseableScissors scissor(PoseStack matrices, Rectangle bounds) {
+        return scissor(matrices.last().pose(), bounds);
+    }
+    
+    @ApiStatus.Experimental
+    public static CloseableScissors scissor(Matrix4f matrix, Rectangle bounds) {
+        Vector4f vec1 = new Vector4f((float) bounds.x, (float) bounds.y, 0, 1);
+        vec1.transform(matrix);
+        Vector4f vec2 = new Vector4f((float) bounds.getMaxX(), (float) bounds.getMaxY(), 0, 1);
+        vec2.transform(matrix);
+        int x1 = Math.round(vec1.x());
+        int x2 = Math.round(vec2.x());
+        int y1 = Math.round(vec1.y());
+        int y2 = Math.round(vec2.y());
+        ScissorsHandler.INSTANCE.scissor(new Rectangle(Math.min(x1, x2), Math.min(y1, y2), Math.abs(x2 - x1), Math.abs(y2 - y1)));
+        return ScissorsHandler.INSTANCE::removeLastScissor;
+    }
 }