First cut - beautiful new font handling by PetteriAimonen

1 files changed, 77 insertions, 0 deletions

diff --git a/src/gdisp/mcufont/mf_font.c b/src/gdisp/mcufont/mf_font.c
new file mode 100644
index 00000000..698a3d8e
--- /dev/null
+++ b/src/gdisp/mcufont/mf_font.c
@@ -0,0 +1,77 @@
+#include "mf_font.h"
+#include <stdbool.h>
+
+/* This will be made into a list of included fonts using macro magic. */
+#define MF_INCLUDED_FONTS 0
+
+/* Included fonts begin here */
+#include MF_FONT_FILE_NAME
+/* Include fonts end here */
+
+uint8_t mf_render_character(const struct mf_font_s *font,
+                            int16_t x0, int16_t y0,
+                            mf_char character,
+                            mf_pixel_callback_t callback,
+                            void *state)
+{
+    uint8_t width;
+    width = font->render_character(font, x0, y0, character, callback, state);
+    
+    if (!width)
+    {
+        width = font->render_character(font, x0, y0, font->fallback_character,
+                                       callback, state);
+    }
+    
+    return width;
+}
+
+uint8_t mf_character_width(const struct mf_font_s *font,
+                           mf_char character)
+{
+    uint8_t width;
+    width = font->character_width(font, character);
+    
+    if (!width)
+    {
+        width = font->character_width(font, font->fallback_character);
+    }
+    
+    return width;
+}
+
+/* Avoids a dependency on libc */
+static bool strequals(const char *a, const char *b)
+{
+    while (*a)
+    {
+        if (*a++ != *b++)
+            return false;
+    }
+    return (!*b);
+}
+
+const struct mf_font_s *mf_find_font(const char *name)
+{
+    const struct mf_font_list_s *f;
+    f = MF_INCLUDED_FONTS;
+    
+    while (f)
+    {
+        if (strequals(f->font->full_name, name) ||
+            strequals(f->font->short_name, name))
+        {
+            return f->font;
+        }
+        
+        f = f->next;
+    }
+    
+    return 0;
+}
+
+const struct mf_font_list_s *mf_get_font_list()
+{
+    return MF_INCLUDED_FONTS;
+}
+