From da5b0fd5b34527ce29429bd46f99215e0e4476bd Mon Sep 17 00:00:00 2001
From: Oshgnacknak <osh@oshgnacknak.de>
Date: Sun, 5 Sep 2021 21:47:45 +0200
Subject: [PATCH] Add text capabilities to Drawable

---
 src/main/java/de/oshgnacknak/gruphi/Canvas.java   | 13 +++++++++++++
 src/main/java/de/oshgnacknak/gruphi/Drawable.java |  4 ++++
 2 files changed, 17 insertions(+)

diff --git a/src/main/java/de/oshgnacknak/gruphi/Canvas.java b/src/main/java/de/oshgnacknak/gruphi/Canvas.java
index 634b5f6..2c08aa8 100644
--- a/src/main/java/de/oshgnacknak/gruphi/Canvas.java
+++ b/src/main/java/de/oshgnacknak/gruphi/Canvas.java
@@ -75,6 +75,19 @@ public class Canvas extends JPanel {
                 r.run();
                 g.scale(1/scale, 1/scale);
             }
+
+            @Override
+            public void text(double x, double y, String text) {
+                FontMetrics metrics = g.getFontMetrics(g.getFont());
+                int d = metrics.getAscent();
+                g.drawString(text, round(x), round(y) + d);
+            }
+
+            @Override
+            public void textSize(int size) {
+                var f = g.getFont();
+                g.setFont(new Font(f.getName(), Font.PLAIN, size));
+            }
         });
     }
 
diff --git a/src/main/java/de/oshgnacknak/gruphi/Drawable.java b/src/main/java/de/oshgnacknak/gruphi/Drawable.java
index 628e793..64a3aa7 100644
--- a/src/main/java/de/oshgnacknak/gruphi/Drawable.java
+++ b/src/main/java/de/oshgnacknak/gruphi/Drawable.java
@@ -23,4 +23,8 @@ public interface Drawable {
     void translated(double x, double y, Runnable r);
 
     void scaled(double scale, Runnable r);
+
+    void text(double x, double y, String text);
+
+    void textSize(int size);
 }