1 files changed, 79 insertions, 0 deletions
diff --git a/circuitpython/shared-module/fontio/BuiltinFont.c b/circuitpython/shared-module/fontio/BuiltinFont.c
new file mode 100644
index 0000000..cb5b7f9
--- /dev/null
+++ b/circuitpython/shared-module/fontio/BuiltinFont.c
@@ -0,0 +1,79 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "shared-bindings/fontio/BuiltinFont.h"
+
+
+#include "shared-bindings/fontio/Glyph.h"
+
+#include "py/objnamedtuple.h"
+
+mp_obj_t common_hal_fontio_builtinfont_get_bitmap(const fontio_builtinfont_t *self) {
+    return MP_OBJ_FROM_PTR(self->bitmap);
+}
+
+mp_obj_t common_hal_fontio_builtinfont_get_bounding_box(const fontio_builtinfont_t *self) {
+    mp_obj_t *items = m_new(mp_obj_t, 2);
+    items[0] = MP_OBJ_NEW_SMALL_INT(self->width);
+    items[1] = MP_OBJ_NEW_SMALL_INT(self->height);
+    return mp_obj_new_tuple(2, items);
+}
+
+uint8_t fontio_builtinfont_get_glyph_index(const fontio_builtinfont_t *self, mp_uint_t codepoint) {
+    if (codepoint >= 0x20 && codepoint <= 0x7e) {
+        return codepoint - 0x20;
+    }
+    // Do a linear search of the mapping for unicode.
+    const byte *j = self->unicode_characters;
+    uint8_t k = 0;
+    while (j < self->unicode_characters + self->unicode_characters_len) {
+        unichar potential_c = utf8_get_char(j);
+        j = utf8_next_char(j);
+        if (codepoint == potential_c) {
+            return 0x7f - 0x20 + k;
+        }
+        k++;
+    }
+    return 0xff;
+}
+
+mp_obj_t common_hal_fontio_builtinfont_get_glyph(const fontio_builtinfont_t *self, mp_uint_t codepoint) {
+    uint8_t glyph_index = fontio_builtinfont_get_glyph_index(self, codepoint);
+    if (glyph_index == 0xff) {
+        return mp_const_none;
+    }
+    mp_obj_t field_values[8] = {
+        MP_OBJ_FROM_PTR(self->bitmap),
+        MP_OBJ_NEW_SMALL_INT(glyph_index),
+        MP_OBJ_NEW_SMALL_INT(self->width),
+        MP_OBJ_NEW_SMALL_INT(self->height),
+        MP_OBJ_NEW_SMALL_INT(0),
+        MP_OBJ_NEW_SMALL_INT(0),
+        MP_OBJ_NEW_SMALL_INT(self->width),
+        MP_OBJ_NEW_SMALL_INT(0)
+    };
+    return namedtuple_make_new((const mp_obj_type_t *)&fontio_glyph_type, 8, 0, field_values);
+}