From 233f8f4d4397c12df7a164461fa7544b6377181e Mon Sep 17 00:00:00 2001
From: Juuxel <6596629+Juuxel@users.noreply.github.com>
Date: Sun, 19 Jan 2020 19:38:59 +0200
Subject: Add nine-patch background painters
---
.../cotton/gui/client/BackgroundPainter.java | 109 +++++++++++++++++++++
1 file changed, 109 insertions(+)
diff --git a/src/main/java/io/github/cottonmc/cotton/gui/client/BackgroundPainter.java b/src/main/java/io/github/cottonmc/cotton/gui/client/BackgroundPainter.java
index 8cf9d40..0cd7338 100644
--- a/src/main/java/io/github/cottonmc/cotton/gui/client/BackgroundPainter.java
+++ b/src/main/java/io/github/cottonmc/cotton/gui/client/BackgroundPainter.java
@@ -2,6 +2,7 @@ package io.github.cottonmc.cotton.gui.client;
import io.github.cottonmc.cotton.gui.widget.WItemSlot;
import io.github.cottonmc.cotton.gui.widget.WWidget;
+import net.minecraft.util.Identifier;
public interface BackgroundPainter {
/**
@@ -55,4 +56,112 @@ public interface BackgroundPainter {
ScreenDrawing.drawGuiPanel(left-8, top-8, panel.getWidth()+16, panel.getHeight()+16, shadowColor, panelColor, hilightColor, 0xFF000000);
};
}
+
+ /**
+ * Utility method to call {@link NinePatch#NinePatch(Identifier)}.
+ *
+ * @param texture the background painter texture
+ * @return a new nine-patch background painter
+ */
+ public static BackgroundPainter.NinePatch createNinePatch(Identifier texture) {
+ return new NinePatch(texture);
+ }
+
+ /**
+ * Utility method to call {@link NinePatch#NinePatch(Identifier)}
+ * and set the padding of the nine-patch painter.
+ *
+ * @param texture the background painter texture
+ * @param padding the padding of the painter
+ * @return a new nine-patch background painter
+ */
+ public static BackgroundPainter.NinePatch createNinePatch(Identifier texture, int padding) {
+ return new NinePatch(texture).setPadding(padding);
+ }
+
+ /**
+ * The nine-patch background painter paints rectangles using a nine-patch texture.
+ *
+ * <p>Nine-patch textures are separated into nine sections: four corners, four edges and a center part.
+ * The edges and the center are stretched to fill the area between the corners.
+ *
+ * <p>{@code NinePatch} painters have a customizable padding that can be applied.
+ * For example, a GUI panel for a container block might have a padding of 8 pixels, like {@link BackgroundPainter#VANILLA}.
+ * You can set the padding using {@link NinePatch#setPadding(int)}.
+ */
+ public static class NinePatch implements BackgroundPainter {
+ private final Identifier texture;
+ private final int cornerSize;
+ private final float cornerUv;
+ private int padding = 8;
+
+ /**
+ * Creates a nine-patch background painter with 4 px corners and a 0.25 cornerUv (corner fraction of whole texture).
+ *
+ * @param texture the texture ID
+ */
+ public NinePatch(Identifier texture) {
+ this(texture, 4, 0.25f);
+ }
+
+ /**
+ * Creates a nine-patch background painter.
+ *
+ * @param texture the texture ID
+ * @param cornerSize the size of the corners on the screen
+ * @param cornerUv the fraction of the corners of the whole texture
+ */
+ public NinePatch(Identifier texture, int cornerSize, float cornerUv) {
+ this.texture = texture;
+ this.cornerSize = cornerSize;
+ this.cornerUv = cornerUv;
+ }
+
+ public int getPadding() {
+ return padding;
+ }
+
+ public NinePatch setPadding(int padding) {
+ this.padding = padding;
+ return this;
+ }
+
+ public Identifier getTexture() {
+ return texture;
+ }
+
+ public int getCornerSize() {
+ return cornerSize;
+ }
+
+ public float getCornerUv() {
+ return cornerUv;
+ }
+
+ @Override
+ public void paintBackground(int left, int top, WWidget panel) {
+ int width = panel.getWidth() + 2 * padding;
+ int height = panel.getHeight() + 2 * padding;
+ left = left - padding;
+ top = top - padding;
+ int x1 = left + cornerSize;
+ int x2 = left + width - cornerSize;
+ int y1 = top + cornerSize;
+ int y2 = top + height - cornerSize;
+ float uv1 = cornerUv;
+ float uv2 = 1.0f - cornerUv;
+
+ ScreenDrawing.texturedRect(left, top, cornerSize, cornerSize, texture, 0, 0, uv1, uv1, 0xFF_FFFFFF);
+ ScreenDrawing.texturedRect(x2, top, cornerSize, cornerSize, texture, uv2, 0, 1, uv1, 0xFF_FFFFFF);
+ ScreenDrawing.texturedRect(left, y2, cornerSize, cornerSize, texture, 0, uv2, uv1, 1, 0xFF_FFFFFF);
+ ScreenDrawing.texturedRect(x2, y2, cornerSize, cornerSize, texture, uv2, uv2, 1, 1, 0xFF_FFFFFF);
+
+ ScreenDrawing.texturedRect(x1, top, width - 2 * cornerSize, cornerSize, texture, uv1, 0, uv2, uv1, 0xFF_FFFFFF);
+ ScreenDrawing.texturedRect(left, y1, cornerSize, height - 2 * cornerSize, texture, 0, uv1, uv1, uv2, 0xFF_FFFFFF);
+ ScreenDrawing.texturedRect(x1, y2, width - 2 * cornerSize, cornerSize, texture, uv1, uv2, uv2, 1, 0xFF_FFFFFF);
+ ScreenDrawing.texturedRect(x2, y1, cornerSize, height - 2 * cornerSize, texture, uv2, uv1, 1, uv2, 0xFF_FFFFFF);
+
+ ScreenDrawing.texturedRect(x1, y1, width - 2 * cornerSize, height - 2 * cornerSize, texture, uv1, uv1, uv2, uv2, 0xFF_FFFFFF);
+ }
+ }
}
--
cgit