From 4d8dce0d8c12d9bc0faab10e3319578599410594 Mon Sep 17 00:00:00 2001
From: Arnaud Giersch <arnaud.giersch@univ-fcomte.fr>
Date: Thu, 9 Oct 2014 15:20:27 +0200
Subject: [PATCH] Add draw/fillTriangle.

---
 DrawingWindow.java | 54 +++++++++++++++++++++++++++++++++++++++++++---
 TODO               |  1 -
 2 files changed, 51 insertions(+), 4 deletions(-)

diff --git a/DrawingWindow.java b/DrawingWindow.java
index ad515ad..267aabf 100644
--- a/DrawingWindow.java
+++ b/DrawingWindow.java
@@ -296,6 +296,50 @@ public class DrawingWindow {
         panel.repaint(x - r, y - r, 2 * r + 1, 2 * r + 1);
     }
 
+    /**
+     * Dessine un triangle.
+     *
+     * Dessine un triangle défini par les coordonnées de ses sommets:
+     * (x1, y1), (x2, y2) et (x3, y3).  Utilise la couleur de dessin
+     * courante.
+     *
+     * @see #fillTriangle
+     * @see #setColor
+     */
+
+    public void drawTriangle(int x1, int y1, int x2, int y2, int x3, int y3) {
+        Polygon poly = new Polygon();
+        poly.addPoint(x1, y1);
+        poly.addPoint(x2, y2);
+        poly.addPoint(x3, y3);
+        synchronized (image) {
+            graphics.drawPolygon(poly);
+        }
+        panel.repaint(poly.getBounds());
+    }
+
+    /**
+     * Dessine un triangle plein.
+     *
+     * Dessine un triangle plein défini par les coordonnées de ses
+     * sommets: (x1, y1), (x2, y2) et (x3, y3).  Utilise la couleur de
+     * dessin courante.
+     *
+     * @see #drawTriangle
+     * @see #setColor
+     */
+    public void fillTriangle(int x1, int y1, int x2, int y2, int x3, int y3) {
+        Polygon poly = new Polygon();
+        poly.addPoint(x1, y1);
+        poly.addPoint(x2, y2);
+        poly.addPoint(x3, y3);
+        synchronized (image) {
+            graphics.drawPolygon(poly);
+            graphics.fillPolygon(poly);
+        }
+        panel.repaint(poly.getBounds());
+    }
+
     /**
      * Écrit du texte.
      *
@@ -450,12 +494,13 @@ public class DrawingWindow {
 
     // Sample tests
     public static void main(String[] args) {
-        DrawingWindow w = new DrawingWindow("Test!", 800, 600);
+        DrawingWindow w = new DrawingWindow("Test!", 400, 400);
 
         w.setColor("green");
-        for (int i = 0; i < 12 + 1; i++) {
+        for (int i = 0; i < 12; i++) {
             int p = 10 * i + 10;
-            w.drawLine(p, 0, p, 125);
+            w.drawLine(p, 0, p, 175);
+            w.drawLine(p + i, 0, p + i, 175);
         }
 
         w.setColor("black");
@@ -467,6 +512,9 @@ public class DrawingWindow {
 
             w.drawRect(p, 75, p + i, 75 + i);
             w.fillRect(p, 100, p + i, 100 + i);
+
+            w.drawTriangle(p, 125, p + i, 125 + i/2, p, 125 + i);
+            w.fillTriangle(p, 150, p + i, 150 + i/2, p, 150 + i);
         }
     }
 }
diff --git a/TODO b/TODO
index 056fbb0..d518fc7 100644
--- a/TODO
+++ b/TODO
@@ -1,4 +1,3 @@
-* Add draw/fillTriangle
 * Add set(Bg)Color with int
 * Add waitMousePress
 * Check if drawText can be improved (alignment)
-- 
2.20.1