Assorted fixes from getting example code running.

src/tempe/font.py

@@ -41,7 +41,7 @@ def __init__(self, mod):
         self.height = mod.height
         self.baseline = mod.baseline
         self.monospaced = mod.monospaced
-        self.memory = len(mod._font) + len(mod._sparse)
+        #self.memory = len(mod._font) + len(mod._sparse)
 
     def measure(self, text):
         width = 0

src/tempe/shapes.py

@@ -17,6 +17,9 @@ def draw(self, buffer, x=0, y=0):
         # draw nothing
         pass
 
+    def draw_raster(self, raster):
+        self.draw(raster.fbuf, raster.x, raster.y)
+
     def update(self):
         if self.clip is None:
             self.clip = self._bounds()
@@ -87,7 +90,6 @@ def _bounds(self):
         return (min_x, min_y, max_x - min_x, max_y - min_y)
 
 
-
 class HLines(ColoredGeometry):
     """Render multiple colored horizontal line segments with line-width 1.
 
@@ -158,6 +160,7 @@ def _bounds(self):
         max_y = -0x7fff
         min_y = 0x7fff
         for geometry in self.geometry:
+            geometry = list(geometry)
             max_x = max(max_x, max(geometry[::2]))
             min_x = min(min_x, min(geometry[::2]))
             max_y = max(max_y, max(geometry[1::2]))
@@ -213,6 +216,20 @@ def draw(self, buffer, x=0, y=0):
             r = geometry[2]
             buffer.ellipse(px, py, r, r, color, self.fill)
 
+    def _bounds(self):
+        max_x = -0x7fff
+        min_x = 0x7fff
+        max_y = -0x7fff
+        min_y = 0x7fff
+        for geometry in self.geometry:
+            max_x = max(max_x, geometry[0] + abs(geometry[2]))
+            min_x = min(min_x, geometry[0] - abs(geometry[2]))
+            max_y = max(max_y, geometry[1] + abs(geometry[2]))
+            min_y = min(min_y, geometry[1] - abs(geometry[2]))
+
+        return (min_x - 1, min_y - 1, max_x - min_x + 2, max_y - min_y + 2)
+
+
 
 class Ellipses(FillableGeometry):
     """Render multiple ellipses.
@@ -227,3 +244,16 @@ def draw(self, buffer, x=0, y=0):
             rx = geometry[2]
             ry = geometry[3]
             buffer.ellipse(px, py, rx, ry, color, self.fill)
+
+    def _bounds(self):
+        max_x = -0x7fff
+        min_x = 0x7fff
+        max_y = -0x7fff
+        min_y = 0x7fff
+        for geometry in self.geometry:
+            max_x = max(max_x, geometry[0] + abs(geometry[2]))
+            min_x = min(min_x, geometry[0] - abs(geometry[2]))
+            max_y = max(max_y, geometry[1] + abs(geometry[3]))
+            min_y = min(min_y, geometry[1] - abs(geometry[3]))
+
+        return (min_x, min_y, max_x - min_x, max_y - min_y)

src/tempe/surface.py

@@ -26,7 +26,7 @@ def draw(self, raster):
                     clip = raster.clip(*object.clip)
                     if clip is None:
                         continue
-                object.draw(clip.fbuf, clip.x, clip.y)
+                object.draw_raster(clip)
 
     def refresh(self, display, working_buffer):
         for rect in self._damage:

src/tempe/text.py

@@ -1,7 +1,7 @@
 from array import array
 import framebuf
 
-from .font import BitmapFont, AlrightFont
+from .font import BitmapFont
 from .shapes import ColoredGeometry, BLIT_KEY_RGB565