From 42d1711bfb7538720615315293501788125ee8e4 Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop@gmail.com>
Date: Sat, 19 Dec 2020 10:39:04 -0500
Subject: [PATCH] Set window icon.

---
 src-c/gui/jes_icon-32x32.h                    |  8 ------
 .../jes_icon-32x32.c => src/jes/gui/icon.d    |  7 +++--
 src/jes/gui/window.d                          | 27 +++++++++++++++++--
 src/jtk/window.d                              |  5 ++++
 4 files changed, 33 insertions(+), 14 deletions(-)
 delete mode 100644 src-c/gui/jes_icon-32x32.h
 rename src-c/gui/jes_icon-32x32.c => src/jes/gui/icon.d (99%)

diff --git a/src-c/gui/jes_icon-32x32.h b/src-c/gui/jes_icon-32x32.h
deleted file mode 100644
index c007213..0000000
--- a/src-c/gui/jes_icon-32x32.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef JES_ICON_32X32_H
-#define JES_ICON_32X32_H
-
-#include <stdint.h>
-
-extern const uint8_t jes_icon_32x32[];
-
-#endif
diff --git a/src-c/gui/jes_icon-32x32.c b/src/jes/gui/icon.d
similarity index 99%
rename from src-c/gui/jes_icon-32x32.c
rename to src/jes/gui/icon.d
index 1e1be75..1363083 100644
--- a/src-c/gui/jes_icon-32x32.c
+++ b/src/jes/gui/icon.d
@@ -1,8 +1,8 @@
-#include "jes_icon-32x32.h"
+module jes.gui.icon;
 
 /* GIMP RGB C-Source image dump (jes_icon-32x32.c) */
 
-const uint8_t jes_icon_32x32[] = {
+const string jes_icon_32x32 =
   "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
   "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
   "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
@@ -95,5 +95,4 @@ const uint8_t jes_icon_32x32[] = {
   "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
   "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
   "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
-  "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000",
-};
+  "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000";
diff --git a/src/jes/gui/window.d b/src/jes/gui/window.d
index 950a30b..1518a64 100644
--- a/src/jes/gui/window.d
+++ b/src/jes/gui/window.d
@@ -1,5 +1,6 @@
 module jes.gui.window;
 
+static import jes.gui.icon;
 static import jtk;
 import jes.gui.font;
 import jes.gui.gl;
@@ -28,7 +29,7 @@ class Window
 
     void resize(int width, int height)
     {
-        load_gl();
+        map_window();
         m_gl.resize(width, height);
         draw();
     }
@@ -42,11 +43,12 @@ class Window
         m_window.swap_buffers();
     }
 
-    private void load_gl()
+    private void map_window()
     {
         if (m_gl is null)
         {
             m_gl = new Gl();
+            set_window_icon();
         }
     }
 
@@ -54,4 +56,25 @@ class Window
     {
         return jtk_windows[jtk_window];
     }
+
+    private void set_window_icon()
+    {
+        const(ubyte) * in_icon = cast(const(ubyte) *)jes.gui.icon.jes_icon_32x32.ptr;
+        ubyte[] icon_bgra = new ubyte[32u * 32u * 4u];
+        ubyte * out_icon = icon_bgra.ptr;
+        for (uint row = 0u; row < 32u; row++)
+        {
+            for (uint col = 0u; col < 32u; col++)
+            {
+                ubyte r = *in_icon++;
+                ubyte g = *in_icon++;
+                ubyte b = *in_icon++;
+                *out_icon++ = b;
+                *out_icon++ = g;
+                *out_icon++ = r;
+                *out_icon++ = 0xFFu;
+            }
+        }
+        m_window.set_icon(icon_bgra.ptr, 32u, 32u);
+    }
 }
diff --git a/src/jtk/window.d b/src/jtk/window.d
index d689ec8..6cb0766 100644
--- a/src/jtk/window.d
+++ b/src/jtk/window.d
@@ -45,6 +45,11 @@ class Window
         }
     }
 
+    void set_icon(const ubyte * data, size_t width, size_t height)
+    {
+        jtk_window_set_icon(m_window, data, width, height);
+    }
+
     void set_title(string title)
     {
         jtk_window_set_title(m_window, title.toStringz());