single repo

2026-01-01 13:33:51 -05:00
parent 8b56187ef1
commit bc8ae91eba
334 changed files with 124529 additions and 2 deletions
@@ -0,0 +1,57 @@
+#include "TextRenderer.h"
+
+namespace pico_ssd1306 {
+
+    void drawText(pico_ssd1306::SSD1306 *ssd1306, const unsigned char *font, const char *text, uint8_t anchor_x,
+                  uint8_t anchor_y, WriteMode mode, Rotation rotation) {
+        if(!ssd1306 || !font || !text) return;
+
+        uint8_t font_width = font[0];
+
+        uint16_t n = 0;
+        while (text[n] != '\0') {
+            switch (rotation) {
+                case Rotation::deg0:
+                    drawChar(ssd1306, font, text[n], anchor_x + (n * font_width), anchor_y, mode, rotation);
+                    break;
+                case Rotation::deg90:
+                    drawChar(ssd1306, font, text[n], anchor_x, anchor_y + (n * font_width), mode, rotation);
+                    break;
+            }
+
+            n++;
+        }
+    }
+
+    void drawChar(pico_ssd1306::SSD1306 *ssd1306, const unsigned char *font, char c, uint8_t anchor_x, uint8_t anchor_y,
+                  WriteMode mode, Rotation rotation) {
+        if(!ssd1306 || !font || c < 32) return;
+
+        uint8_t font_width = font[0];
+        uint8_t font_height = font[1];
+
+        uint16_t seek = (c - 32) * (font_width * font_height) / 8 + 2;
+
+        uint8_t b_seek = 0;
+
+        for (uint8_t x = 0; x < font_width; x++) {
+            for (uint8_t y = 0; y < font_height; y++) {
+                if (font[seek] >> b_seek & 0b00000001) {
+                    switch (rotation) {
+                        case Rotation::deg0:
+                            ssd1306->setPixel(x + anchor_x, y + anchor_y, mode);
+                            break;
+                        case Rotation::deg90:
+                            ssd1306->setPixel(-y + anchor_x + font_height, x + anchor_y, mode);
+                            break;
+                    }
+                }
+                b_seek++;
+                if (b_seek == 8) {
+                    b_seek = 0;
+                    seek++;
+                }
+            }
+        }
+    }
+}