From aa68958a772bebffe426255d3118d22565c9369c Mon Sep 17 00:00:00 2001
From: DaniTheSkunk <>
Date: Tue, 13 Dec 2022 04:01:33 +0000
Subject: [PATCH] added max width wrapping in NodeText

---
 com/danitheskunk/skunkworks/TestNode.java     |  9 +++-
 .../skunkworks/gfx/font/BaseFont.java         | 17 ++++++++
 .../skunkworks/gfx/font/FontTileset.java      |  2 +-
 .../skunkworks/gfx/font/IFont.java            |  2 +
 .../skunkworks/nodes/NodeText.java            | 42 ++++++++++++++++++-
 5 files changed, 68 insertions(+), 4 deletions(-)
 create mode 100644 com/danitheskunk/skunkworks/gfx/font/BaseFont.java

diff --git a/com/danitheskunk/skunkworks/TestNode.java b/com/danitheskunk/skunkworks/TestNode.java
index dcf3006..2e728c2 100644
--- a/com/danitheskunk/skunkworks/TestNode.java
+++ b/com/danitheskunk/skunkworks/TestNode.java
@@ -10,6 +10,7 @@ public class TestNode extends BaseGame {
 	private final ISample kick;
 	private final NodeSprite sprite;
 	private final NodeText text;
+	private final NodeText text2;
 	float[] axes;
 
 	public TestNode() {
@@ -17,12 +18,17 @@ public class TestNode extends BaseGame {
 
 		kick = loadSample("demoassets/kick.wav");
 		var font = window.loadFontTileset("fonts/ega-8x14.png");
-		text = new NodeText(font, "Hello World!");
+		var font2 = window.loadFontTTF("fonts/LiberationSans-Regular.ttf", 24.0f);
+		text = new NodeText(font, "Hello World! this is an extra long test meow meow nya nya! nyaaa!");
+		text2 = new NodeText(font2, "Hello World! this is an extra long test meow meow nya nya! nyaaa!");
+		text.setMaxSize(new Vec2i(100, 100));
+		text2.setMaxSize(new Vec2i(100, 100));
 		sprite = new NodeSprite();
 		sprite.setTexture(loadTexture("demoassets/card.png"));
 		sprite.setPos(new Vec2f(100, 100));
 		//rootNode.add(sprite);
 		rootNode.add(text);
+		rootNode.add(text2);
 		//doThing();
 
 	}
@@ -38,6 +44,7 @@ public class TestNode extends BaseGame {
 	@Override
 	protected void update(double delta) {
 		text.setPos(new Vec2f(640 + 640 * gamepad.getAxis(0), 360 + 360 * gamepad.getAxis(1)));
+		text2.setPos(new Vec2f(440 + 640 * gamepad.getAxis(0), 360 + 360 * gamepad.getAxis(1)));
 		if(gamepad.getButtonPressed(0)) {
 			playSample(kick);
 		}
diff --git a/com/danitheskunk/skunkworks/gfx/font/BaseFont.java b/com/danitheskunk/skunkworks/gfx/font/BaseFont.java
new file mode 100644
index 0000000..82b6b65
--- /dev/null
+++ b/com/danitheskunk/skunkworks/gfx/font/BaseFont.java
@@ -0,0 +1,17 @@
+package com.danitheskunk.skunkworks.gfx.font;
+
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+
+public abstract class BaseFont implements IFont {
+	@Override
+	public int getStringWidth(String str) {
+		//todo: figure out later
+		Charset charset = isCP437() ? StandardCharsets.ISO_8859_1 : StandardCharsets.UTF_8;
+		int width = 0;
+		for(var ch : str.getBytes(charset)) {
+			width += getXAdvance(ch);
+		}
+		return width;
+	}
+}
diff --git a/com/danitheskunk/skunkworks/gfx/font/FontTileset.java b/com/danitheskunk/skunkworks/gfx/font/FontTileset.java
index a2c2ee6..5535548 100644
--- a/com/danitheskunk/skunkworks/gfx/font/FontTileset.java
+++ b/com/danitheskunk/skunkworks/gfx/font/FontTileset.java
@@ -5,7 +5,7 @@ import com.danitheskunk.skunkworks.gfx.ITexture;
 
 import java.util.List;
 
-public class FontTileset implements IFont {
+public class FontTileset extends BaseFont {
 	private final Vec2i charSize;
 	private final List<ITexture> textures;
 
diff --git a/com/danitheskunk/skunkworks/gfx/font/IFont.java b/com/danitheskunk/skunkworks/gfx/font/IFont.java
index f1eb898..2ef7cd5 100644
--- a/com/danitheskunk/skunkworks/gfx/font/IFont.java
+++ b/com/danitheskunk/skunkworks/gfx/font/IFont.java
@@ -6,6 +6,8 @@ import com.danitheskunk.skunkworks.gfx.ITexture;
 public interface IFont {
 	int getLineHeight();
 
+	int getStringWidth(String str);
+
 	Vec2i getMonospaceSize();
 
 	Vec2i getOffset(int ch);
diff --git a/com/danitheskunk/skunkworks/nodes/NodeText.java b/com/danitheskunk/skunkworks/nodes/NodeText.java
index 832d457..0470749 100644
--- a/com/danitheskunk/skunkworks/nodes/NodeText.java
+++ b/com/danitheskunk/skunkworks/nodes/NodeText.java
@@ -1,27 +1,65 @@
 package com.danitheskunk.skunkworks.nodes;
 
+import com.danitheskunk.skunkworks.Vec2i;
 import com.danitheskunk.skunkworks.gfx.IRenderContext;
 import com.danitheskunk.skunkworks.gfx.font.IFont;
 
+import java.util.ArrayList;
+import java.util.List;
+
 public class NodeText extends Node {
 	private IFont font;
+	private List<String> lines;
+	private Vec2i maxSize;
 	private String text;
 
 	public NodeText(IFont font, String text) {
 		this.font = font;
-		this.text = text;
+		maxSize = Vec2i.ZERO;
+		lines = new ArrayList<>();
+		setText(text);
+	}
+
+	private void layoutText() {
+		lines.clear();
+		if(maxSize == Vec2i.ZERO) {
+			lines.add(text);
+			return;
+		}
+		var words = text.split(" ");
+		String currentLine = words[0];
+		for(int i = 1; i < words.length; ++i) {
+			String newLine = currentLine + " " + words[i];
+			if(font.getStringWidth(newLine) > maxSize.getX()) {
+				lines.add(currentLine);
+				currentLine = words[i];
+			} else {
+				currentLine = newLine;
+			}
+		}
+		lines.add(currentLine);
 	}
 
 	@Override
 	public void render(IRenderContext rc) {
-		rc.drawString(getAbsolutePos().toVec2i(), text, font);
+		Vec2i pos = getAbsolutePos().toVec2i();
+		for(var line : lines) {
+			rc.drawString(pos, line, font);
+			pos = Vec2i.add(pos, new Vec2i(0, font.getLineHeight()));
+		}
 	}
 
 	public void setFont(IFont font) {
 		this.font = font;
 	}
 
+	public void setMaxSize(Vec2i maxSize) {
+		this.maxSize = maxSize;
+		layoutText();
+	}
+
 	public void setText(String text) {
 		this.text = text;
+		layoutText();
 	}
 }