From ca059e2083665676bcf846abde2a6c78351ac98f Mon Sep 17 00:00:00 2001
From: Giorgio Garasto <giorgio@garasto.me>
Date: Mon, 25 Jul 2022 07:48:04 +0200
Subject: [PATCH] feat: implement about me page

---
 res/assets/phrases.c | 137 +++++++++++++++++++++++++++++++++++++++++++
 res/assets/phrases.h |   2 +
 src/pages/about.c    |  56 +++++++++++++++++-
 src/pages/handler.h  |   2 +
 4 files changed, 196 insertions(+), 1 deletion(-)

diff --git a/res/assets/phrases.c b/res/assets/phrases.c
index 75dcc50..3520136 100644
--- a/res/assets/phrases.c
+++ b/res/assets/phrases.c
@@ -85,4 +85,141 @@ const unsigned char projects[] = {0x25, 0x27, 0x24, 0x1F,
 // Skills
 const unsigned char skills[] = {0x28, 0x20, 0x1E, 0x21, 0x21, 0x28};
 
+// About me - description
+const unsigned char about_me_description[67][20] = {
+    {0x22, 0x2E, 0x00, 0x23, 0x16, 0x22, 0x1A, 0x00, 0x1E, 0x28,
+     0x00, 0x1C, 0x1E, 0x24, 0x27, 0x1C, 0x1E, 0x24, 0x00, 0x00},
+    {0x1C, 0x16, 0x27, 0x16, 0x28, 0x29, 0x24, 0x00, 0x16, 0x23,
+     0x19, 0x00, 0x1E, 0x03, 0x22, 0x00, 0x0B, 0x0D, 0x00, 0x00},
+    {0x2E, 0x1A, 0x16, 0x27, 0x28, 0x00, 0x24, 0x21, 0x19, 0x08,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x1E, 0x00, 0x25, 0x2A, 0x29, 0x00, 0x22, 0x2E, 0x00, 0x1D,
+     0x16, 0x23, 0x19, 0x28, 0x00, 0x24, 0x23, 0x00, 0x00, 0x00},
+    {0x1D, 0x29, 0x22, 0x21, 0x00, 0x1B, 0x24, 0x27, 0x00, 0x29,
+     0x1D, 0x1A, 0x00, 0x1B, 0x1E, 0x27, 0x28, 0x29, 0x00, 0x00},
+    {0x29, 0x1E, 0x22, 0x1A, 0x00, 0x2C, 0x1D, 0x1A, 0x23, 0x00,
+     0x1E, 0x00, 0x2C, 0x16, 0x28, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x28, 0x1A, 0x2B, 0x1A, 0x23, 0x00, 0x2E, 0x1A, 0x16, 0x27,
+     0x28, 0x00, 0x24, 0x21, 0x19, 0x00, 0x29, 0x24, 0x00, 0x00},
+    {0x1D, 0x1A, 0x21, 0x25, 0x00, 0x22, 0x2E, 0x00, 0x1B, 0x16,
+     0x29, 0x1D, 0x1A, 0x27, 0x06, 0x00, 0x16, 0x23, 0x19, 0x00},
+    {0x1E, 0x03, 0x2B, 0x1A, 0x00, 0x23, 0x1A, 0x2B, 0x1A, 0x27,
+     0x00, 0x28, 0x29, 0x24, 0x25, 0x25, 0x1A, 0x19, 0x00, 0x00},
+    {0x25, 0x21, 0x16, 0x2E, 0x1E, 0x23, 0x1C, 0x00, 0x2C, 0x1E,
+     0x29, 0x1D, 0x00, 0x1E, 0x29, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x28, 0x1E, 0x23, 0x18, 0x1A, 0x00, 0x29, 0x1D, 0x1A, 0x23,
+     0x08, 0x00, 0x29, 0x1D, 0x1A, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x25, 0x16, 0x28, 0x28, 0x1E, 0x24, 0x23, 0x00, 0x1B, 0x24,
+     0x27, 0x00, 0x2C, 0x1A, 0x17, 0x00, 0x19, 0x1A, 0x2B, 0x00},
+    {0x1E, 0x23, 0x1B, 0x21, 0x2A, 0x1A, 0x23, 0x18, 0x1A, 0x19,
+     0x00, 0x17, 0x24, 0x29, 0x1D, 0x00, 0x22, 0x2E, 0x00, 0x00},
+    {0x2C, 0x24, 0x27, 0x20, 0x00, 0x16, 0x23, 0x19, 0x00, 0x28,
+     0x29, 0x2A, 0x19, 0x2E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x18, 0x1D, 0x24, 0x1E, 0x18, 0x1A, 0x28, 0x00, 0x16, 0x23,
+     0x19, 0x00, 0x17, 0x27, 0x24, 0x2A, 0x1C, 0x1D, 0x29, 0x00},
+    {0x22, 0x1A, 0x00, 0x29, 0x24, 0x00, 0x1C, 0x16, 0x1E, 0x23,
+     0x00, 0x16, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x28, 0x18, 0x1D, 0x24, 0x21, 0x16, 0x27, 0x28, 0x1D, 0x1E,
+     0x25, 0x00, 0x1B, 0x27, 0x24, 0x22, 0x00, 0x00, 0x00, 0x00},
+    {0x1C, 0x24, 0x24, 0x1C, 0x21, 0x1A, 0x00, 0x16, 0x23, 0x19,
+     0x00, 0x2A, 0x19, 0x16, 0x18, 0x1E, 0x29, 0x2E, 0x00, 0x00},
+    {0x29, 0x1D, 0x16, 0x29, 0x00, 0x1C, 0x16, 0x2B, 0x1A, 0x00,
+     0x22, 0x1A, 0x00, 0x29, 0x1D, 0x1A, 0x00, 0x00, 0x00, 0x00},
+    {0x18, 0x1D, 0x16, 0x23, 0x18, 0x1A, 0x00, 0x29, 0x24, 0x00,
+     0x24, 0x17, 0x29, 0x16, 0x1E, 0x23, 0x00, 0x29, 0x1D, 0x1A},
+    {0x22, 0x24, 0x17, 0x1E, 0x21, 0x1A, 0x00, 0x2C, 0x1A, 0x17,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x28, 0x25, 0x1A, 0x18, 0x1E, 0x16, 0x21, 0x1E, 0x28, 0x29,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x18, 0x1A, 0x27, 0x29, 0x1E, 0x1B, 0x1E, 0x18, 0x16, 0x29,
+     0x1E, 0x24, 0x23, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x16, 0x29, 0x00, 0x2C, 0x24, 0x27, 0x20, 0x06, 0x00, 0x1E,
+     0x00, 0x1C, 0x16, 0x1E, 0x23, 0x1A, 0x19, 0x00, 0x16, 0x00},
+    {0x2B, 0x16, 0x28, 0x29, 0x00, 0x1A, 0x2D, 0x25, 0x1A, 0x27,
+     0x1E, 0x1A, 0x23, 0x18, 0x1A, 0x00, 0x1E, 0x23, 0x00, 0x00},
+    {0x1B, 0x27, 0x24, 0x23, 0x29, 0x00, 0x1A, 0x23, 0x19, 0x00,
+     0x19, 0x1A, 0x2B, 0x00, 0x17, 0x2E, 0x00, 0x00, 0x00, 0x00},
+    {0x22, 0x1A, 0x16, 0x23, 0x28, 0x00, 0x24, 0x1B, 0x00, 0x21,
+     0x1E, 0x17, 0x28, 0x00, 0x16, 0x23, 0x19, 0x00, 0x00, 0x00},
+    {0x1B, 0x27, 0x16, 0x22, 0x1A, 0x2C, 0x24, 0x27, 0x20, 0x28,
+     0x00, 0x28, 0x2A, 0x18, 0x1D, 0x00, 0x16, 0x28, 0x00, 0x00},
+    {0x27, 0x1A, 0x16, 0x18, 0x29, 0x00, 0x16, 0x23, 0x19, 0x00,
+     0x16, 0x23, 0x1C, 0x2A, 0x21, 0x16, 0x27, 0x06, 0x00, 0x00},
+    {0x16, 0x28, 0x00, 0x2C, 0x1A, 0x21, 0x21, 0x00, 0x16, 0x28,
+     0x00, 0x2A, 0x28, 0x1E, 0x23, 0x1C, 0x00, 0x00, 0x00, 0x00},
+    {0x23, 0x16, 0x29, 0x1E, 0x2B, 0x1A, 0x00, 0x29, 0x1A, 0x18,
+     0x1D, 0x06, 0x00, 0x21, 0x1E, 0x20, 0x1A, 0x00, 0x00, 0x00},
+    {0x2C, 0x1A, 0x17, 0x00, 0x18, 0x24, 0x22, 0x25, 0x24, 0x23,
+     0x1A, 0x23, 0x29, 0x28, 0x00, 0x16, 0x23, 0x19, 0x00, 0x00},
+    {0x28, 0x1A, 0x27, 0x2B, 0x1E, 0x18, 0x1A, 0x00, 0x2C, 0x24,
+     0x27, 0x20, 0x1A, 0x27, 0x28, 0x08, 0x00, 0x24, 0x23, 0x00},
+    {0x29, 0x1D, 0x1A, 0x00, 0x17, 0x16, 0x18, 0x20, 0x00, 0x1A,
+     0x23, 0x19, 0x00, 0x28, 0x1E, 0x19, 0x1A, 0x06, 0x00, 0x1E},
+    {0x22, 0x16, 0x1E, 0x23, 0x21, 0x2E, 0x00, 0x2A, 0x28, 0x1A,
+     0x00, 0x23, 0x24, 0x19, 0x1A, 0x08, 0x1F, 0x28, 0x00, 0x00},
+    {0x16, 0x23, 0x19, 0x00, 0x1C, 0x24, 0x08, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x24, 0x2A, 0x29, 0x28, 0x1E, 0x19, 0x1A, 0x00, 0x29, 0x1D,
+     0x1A, 0x00, 0x2C, 0x24, 0x27, 0x20, 0x1E, 0x23, 0x1C, 0x00},
+    {0x2C, 0x24, 0x27, 0x21, 0x19, 0x06, 0x00, 0x1E, 0x00, 0x21,
+     0x1E, 0x20, 0x1A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x19, 0x1A, 0x2B, 0x24, 0x29, 0x1E, 0x23, 0x1C, 0x00, 0x22,
+     0x2E, 0x28, 0x1A, 0x21, 0x1B, 0x00, 0x29, 0x24, 0x00, 0x00},
+    {0x22, 0x2A, 0x28, 0x1E, 0x18, 0x08, 0x00, 0x1E, 0x00, 0x21,
+     0x24, 0x2B, 0x1A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x25, 0x21, 0x16, 0x2E, 0x1E, 0x23, 0x1C, 0x00, 0x1C, 0x2A,
+     0x1E, 0x29, 0x16, 0x27, 0x00, 0x16, 0x23, 0x19, 0x00, 0x00},
+    {0x28, 0x1E, 0x23, 0x1C, 0x1E, 0x23, 0x1C, 0x06, 0x00, 0x17,
+     0x2A, 0x29, 0x00, 0x1E, 0x00, 0x19, 0x24, 0x00, 0x00, 0x00},
+    {0x19, 0x16, 0x17, 0x17, 0x21, 0x1A, 0x00, 0x16, 0x21, 0x28,
+     0x24, 0x00, 0x2C, 0x1E, 0x29, 0x1D, 0x00, 0x00, 0x00, 0x00},
+    {0x25, 0x1E, 0x16, 0x23, 0x24, 0x00, 0x16, 0x23, 0x19, 0x00,
+     0x19, 0x27, 0x2A, 0x22, 0x28, 0x08, 0x00, 0x00, 0x00, 0x00},
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x27, 0x1E, 0x1C, 0x1D, 0x29, 0x00, 0x23, 0x24, 0x2C, 0x06,
+     0x00, 0x1E, 0x03, 0x22, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x2C, 0x24, 0x27, 0x20, 0x1E, 0x23, 0x1C, 0x00, 0x16, 0x28,
+     0x00, 0x16, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x1B, 0x27, 0x24, 0x23, 0x29, 0x1A, 0x23, 0x19, 0x00, 0x1A,
+     0x23, 0x1C, 0x1E, 0x23, 0x1A, 0x1A, 0x27, 0x00, 0x16, 0x29},
+    {0x1A, 0x22, 0x25, 0x16, 0x29, 0x1E, 0x18, 0x16, 0x06, 0x00,
+     0x16, 0x23, 0x00, 0x22, 0x1E, 0x29, 0x00, 0x00, 0x00, 0x00},
+    {0x28, 0x25, 0x1E, 0x23, 0x07, 0x24, 0x1B, 0x1B, 0x00, 0x18,
+     0x24, 0x22, 0x25, 0x16, 0x23, 0x2E, 0x00, 0x00, 0x00, 0x00},
+    {0x17, 0x16, 0x28, 0x1A, 0x19, 0x00, 0x1E, 0x23, 0x00, 0x17,
+     0x24, 0x28, 0x29, 0x24, 0x23, 0x00, 0x16, 0x23, 0x19, 0x00},
+    {0x22, 0x1E, 0x21, 0x16, 0x23, 0x00, 0x2C, 0x1E, 0x29, 0x1D,
+     0x00, 0x22, 0x24, 0x27, 0x1A, 0x00, 0x29, 0x1D, 0x16, 0x23},
+    {0x0A, 0x09, 0x09, 0x00, 0x1A, 0x22, 0x25, 0x21, 0x24, 0x2E,
+     0x1A, 0x1A, 0x28, 0x06, 0x00, 0x2C, 0x1D, 0x24, 0x28, 0x1A},
+    {0x1C, 0x24, 0x16, 0x21, 0x00, 0x1E, 0x28, 0x00, 0x29, 0x24,
+     0x00, 0x19, 0x1A, 0x28, 0x1E, 0x1C, 0x23, 0x00, 0x00, 0x00},
+    {0x16, 0x23, 0x19, 0x00, 0x19, 0x1A, 0x2B, 0x1A, 0x21, 0x24,
+     0x25, 0x00, 0x16, 0x1E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x28, 0x2E, 0x28, 0x29, 0x1A, 0x22, 0x28, 0x00, 0x29, 0x24,
+     0x00, 0x22, 0x24, 0x23, 0x1E, 0x29, 0x24, 0x27, 0x00, 0x00},
+    {0x1D, 0x2A, 0x22, 0x16, 0x23, 0x00, 0x1D, 0x1A, 0x16, 0x21,
+     0x29, 0x1D, 0x00, 0x29, 0x1D, 0x27, 0x24, 0x2A, 0x1C, 0x1D},
+    {0x2C, 0x1A, 0x16, 0x27, 0x16, 0x17, 0x21, 0x1A, 0x00, 0x28,
+     0x1A, 0x23, 0x28, 0x24, 0x27, 0x28, 0x08, 0x00, 0x00, 0x00},
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x1E, 0x00, 0x16, 0x21, 0x28, 0x24, 0x00, 0x1D, 0x16, 0x2B,
+     0x1A, 0x00, 0x16, 0x00, 0x17, 0x2A, 0x23, 0x18, 0x1D, 0x00},
+    {0x24, 0x1B, 0x00, 0x24, 0x25, 0x1A, 0x23, 0x00, 0x28, 0x24,
+     0x2A, 0x27, 0x18, 0x1A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
+    {0x25, 0x27, 0x24, 0x1F, 0x1A, 0x18, 0x29, 0x28, 0x06, 0x00,
+     0x2C, 0x1D, 0x1E, 0x18, 0x1D, 0x00, 0x2E, 0x24, 0x2A, 0x00},
+    {0x18, 0x16, 0x23, 0x00, 0x18, 0x1D, 0x1A, 0x18, 0x20, 0x00,
+     0x24, 0x2A, 0x29, 0x00, 0x1E, 0x23, 0x00, 0x29, 0x1D, 0x1A},
+    {0x25, 0x27, 0x24, 0x1F, 0x1A, 0x18, 0x29, 0x28, 0x00, 0x28,
+     0x1A, 0x18, 0x29, 0x1E, 0x24, 0x23, 0x08, 0x00, 0x00, 0x00}};
+
 #endif
diff --git a/res/assets/phrases.h b/res/assets/phrases.h
index 0079b58..fa3ebc1 100644
--- a/res/assets/phrases.h
+++ b/res/assets/phrases.h
@@ -28,4 +28,6 @@ extern const unsigned char contacts[8];
 extern const unsigned char projects[8];
 extern const unsigned char skills[6];
 
+extern const unsigned char about_me_description[67][20];
+
 #endif
diff --git a/src/pages/about.c b/src/pages/about.c
index 163a7d1..d9b237f 100644
--- a/src/pages/about.c
+++ b/src/pages/about.c
@@ -7,15 +7,69 @@
 #include "handler.h"
 #include <gbdk/platform.h>
 
+uint8_t about_me_current_row_index;
+
+void draw_about_me_description_chunk() {
+  for (uint8_t i = 0; i < DEVICE_SCREEN_HEIGHT - PAGE_HEADER_HEIGHT; ++i) {
+    set_bkg_tiles(0, i + PAGE_HEADER_HEIGHT, DEVICE_SCREEN_WIDTH, 1,
+                  about_me_description[i + about_me_current_row_index]);
+  }
+}
+
+void handle_about_me_scroll_row_up() {
+  if (about_me_current_row_index == 0) {
+    return;
+  }
+  --about_me_current_row_index;
+  draw_about_me_description_chunk();
+}
+
+void handle_about_me_scroll_row_down() {
+  if (about_me_current_row_index == ARRAY_LEN(about_me_description) -
+                                        DEVICE_SCREEN_HEIGHT +
+                                        PAGE_HEADER_HEIGHT) {
+    return;
+  }
+  ++about_me_current_row_index;
+  draw_about_me_description_chunk();
+}
+
+void handle_about_me_scroll_page_down() {
+  about_me_current_row_index += DEVICE_SCREEN_HEIGHT - PAGE_HEADER_HEIGHT;
+  if (about_me_current_row_index > ARRAY_LEN(about_me_description) -
+                                       DEVICE_SCREEN_HEIGHT +
+                                       PAGE_HEADER_HEIGHT) {
+    about_me_current_row_index = ARRAY_LEN(about_me_description) -
+                                 DEVICE_SCREEN_HEIGHT + PAGE_HEADER_HEIGHT;
+  }
+  draw_about_me_description_chunk();
+}
+
 void about_setup() {
   set_bkg_tiles(1, 1, ARRAY_LEN(about_me), 1, about_me);
-  fillarea(0, 3, DEVICE_SCREEN_WIDTH, 1, 0x33);
+  fillarea(0, PAGE_HEADER_HEIGHT - 1, DEVICE_SCREEN_WIDTH, 1, 0x33);
+  about_me_current_row_index = 0;
+  draw_about_me_description_chunk();
 }
 
 void about_loop(uint8_t *current_loop_count, uint8_t keys) {
   if (keys & J_B) {
     set_page(HOME_MENU);
   }
+
+  // Allow scrolling by one row by pressing up or down
+  void (*about_me_scroll_row_up_handler)(void);
+  about_me_scroll_row_up_handler = &handle_about_me_scroll_row_up;
+  throttlekey(keys, J_UP, about_me_scroll_row_up_handler);
+
+  void (*about_me_scroll_row_down_handler)(void);
+  about_me_scroll_row_down_handler = &handle_about_me_scroll_row_down;
+  throttlekey(keys, J_DOWN, about_me_scroll_row_down_handler);
+
+  // Allow scrolling by one page by pressing A
+  void (*about_me_scroll_page_down_handler)(void);
+  about_me_scroll_page_down_handler = &handle_about_me_scroll_page_down;
+  throttlekey(keys, J_A, about_me_scroll_page_down_handler);
 }
 
 #endif
diff --git a/src/pages/handler.h b/src/pages/handler.h
index cc8a2ac..0b754ed 100644
--- a/src/pages/handler.h
+++ b/src/pages/handler.h
@@ -2,6 +2,8 @@
 #ifndef PAGES_HANDLER_H
 #define PAGES_HANDLER_H
 
+#define PAGE_HEADER_HEIGHT 4
+
 extern enum Page {
   HOME_HEADER,
   HOME_MENU,