init

components/rasterfont/__init__.py

@@ -0,0 +1,82 @@
+# coding=utf-8
+from esphome import core
+from esphome.components import display
+import esphome.config_validation as cv
+import esphome.codegen as cg
+from esphome.const import CONF_ID, CONF_GLYPHS, CONF_DATA
+from esphome.core import CORE, HexInt
+#from esphome.py_compat import sort_by_cmp
+
+DEPENDENCIES = ['display']
+MULTI_CONF = True
+
+Font = display.display_ns.class_('Font')
+Glyph = display.display_ns.class_('Glyph')
+
+
+def validate_data(value):
+    r = type(value)()
+    for k, v in value.items():
+        r[str(k)] = v
+    
+    return type(value)(sorted(r.items()))
+
+CONF_RAW_DATA_ID = 'raw_data_id'
+BIT0_DEFAULT = '0 '
+
+RASTERFONT_SCHEMA = cv.Schema({
+    cv.Required(CONF_ID): cv.declare_id(Font),
+    cv.Required(CONF_DATA): validate_data,
+    cv.Optional(CONF_GLYPHS): cv.string_strict,
+    cv.Optional('bit0', default=BIT0_DEFAULT): cv.string_strict,
+    cv.GenerateID(CONF_RAW_DATA_ID): cv.declare_id(cg.uint8),
+})
+
+CONFIG_SCHEMA = cv.All(RASTERFONT_SCHEMA)
+
+
+def string_to_int(s, bit0):
+    b = ''.join(map(lambda x: '0' if x in bit0 else '1', s+'0'*((8-len(s) % 8) % 8)))
+    r = [int(b[i:i+8], 2) for i in range(0, len(b), 8)]
+    return r
+
+def to_code(config):
+
+    glyph_args = {}
+    data = []
+    include_glyphs = config.get(CONF_GLYPHS, None)
+    bit0 = config.get('bit0')
+    for glyph, gconfig in config[CONF_DATA].items():
+        if include_glyphs and glyph not in include_glyphs: continue
+
+        height = 0
+        maxwidth = 0
+        offset_x = gconfig.get('offset_x', 0)
+        offset_y = gconfig.get('offset_y', 0)
+        
+        rows = gconfig.get('bitmap', [])
+        if isinstance(rows, str):
+            rows = rows.split('\n')
+            while rows[-1] == '': rows.pop()
+
+        for row in rows:
+            maxwidth = max(maxwidth, len(row))
+        width = gconfig.get('width', maxwidth)
+
+        glyph_data = []
+        for row in rows:
+            height += 1
+            glyph_data += string_to_int(row + '0'*(maxwidth-len(row)), bit0)
+
+        width8 = ((width + 7) // 8) * 8
+        glyph_args[str(glyph)] = (len(data), offset_x, offset_y, width, height)
+        data += glyph_data
+
+    rhs = [HexInt(x) for x in data]
+    prog_arr = cg.progmem_array(config[CONF_RAW_DATA_ID], rhs)
+
+    glyphs = []
+    for glyph in config[CONF_DATA].keys():
+        glyphs.append(Glyph(str(glyph), prog_arr, *glyph_args[str(glyph)]))
+
+    cg.new_Pvariable(config[CONF_ID], glyphs, 0, 0)