From cfbf3675f0276f73d3d95cbbcc7bc8d54e00f550 Mon Sep 17 00:00:00 2001
From: true <trueserve@users.noreply.github.com>
Date: Sat, 4 Nov 2023 12:35:20 -0700
Subject: [PATCH] =?UTF-8?q?Added=20na=C3=AFve=20text=20border=20routine?=
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---
 src/main.cpp | 50 +++++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 45 insertions(+), 5 deletions(-)

diff --git a/src/main.cpp b/src/main.cpp
index b5e62c4..a683c2f 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -23,9 +23,10 @@ const char name[] = "Your Name";
 #define DISP_DC     	5
 
 #define TEXT_SIZE       5
+#define BORDER_COLOR    DARKGREY
 #define ROT_SIZE        70
 
-#define LETTER_SPACING  1898    // user-configurable
+#define LETTER_SPACING  1942    // user-configurable
 
 
 Arduino_DataBus *bus = new Arduino_RPiPicoSPI(DISP_DC, DISP_NSS, SPI0_SCK, SPI0_MOSI, SPI0_MISO, spi0);
@@ -76,19 +77,56 @@ void rotate_letter(uint8_t idx, int16_t rot, int16_t out_x, int16_t out_y, uint1
     uint16_t src_pxl;
     uint16_t bgcolor = CYAN;
 
+    uint8_t is_color;
+
     // clear the rotation buffer
     drot->fillScreen(CYAN);
 
     // print the letter to the center of the rotation buffer
-    drot->setCursor(0, TEXT_SIZE * 10);
+    drot->setCursor(1, (TEXT_SIZE * 10));
     drot->setTextColor(color);
     drot->print(name[idx]);
-    x_width = drot->getCursorX() - TEXT_SIZE;
+    x_width = drot->getCursorX() - TEXT_SIZE + 1;
 
-    // framebuffers
+    // framebuffer pointers
     src = drot->getFramebuffer();
     dst = dout->getFramebuffer();
 
+    // naive bordering
+    for (y = 0; y < ROT_SIZE; y++) {
+        is_color = 0;
+        for (x = 0; x < x_width; x++) {
+            if (is_color) {
+                if (src[x + (y * ROT_SIZE)] != color) {
+                    is_color = 0;
+                    src[x + (y * ROT_SIZE)] = BORDER_COLOR;
+                }
+            } else {
+                if (src[x + (y * ROT_SIZE)] == color) {
+                    is_color = 1;
+                    src[x + (y * ROT_SIZE) - 1] = BORDER_COLOR;
+                }
+            }
+        }
+    }
+
+    for (x = 0; x < x_width; x++) {
+        is_color = 0;
+        for (y = 0; y < ROT_SIZE; y++) {
+            if (is_color) {
+                if (src[x + (y * ROT_SIZE)] != color) {
+                    is_color = 0;
+                    src[x + (y * ROT_SIZE)] = BORDER_COLOR;
+                }
+            } else {
+                if (src[x + (y * ROT_SIZE)] == color) {
+                    is_color = 1;
+                    src[x + (y * ROT_SIZE) - ROT_SIZE] = BORDER_COLOR;
+                }
+            }
+        }
+    }
+
     // position
     start_x = out_x + 120;
     start_y = out_y + 120;
@@ -176,6 +214,7 @@ void bg_rainbow_circles(uint8_t saturation)
     // hsv.h %= 1536;
     // hsv2rgb_8b(hue, 255, 128, &rgb.r, &rgb.g, &rgb.b);
     // dout->fillScreen(dout->color565(rgb.r, rgb.g, rgb.b));
+    dout->fillScreen(BLACK);
 
     // draw some circles
     hue = hsv.h;
@@ -218,7 +257,8 @@ void loop()
 
     // rainbow circles program
     bg_rainbow_circles(200);
-    texthue_180degree();
+    // texthue_180degree();
+    rgb.r = rgb.g = rgb.b = 0;
 
     // small hue shift with larger saturation shifts circles
     // bg_huesatcycle_circles();