some basic buttons

Author: ladyada

adafruit_button.py

@@ -0,0 +1,45 @@
+import displayio
+from adafruit_display_text.text_area import TextArea
+from adafruit_bitmap_font import bitmap_font
+from adafruit_display_shapes.rect import Rect
+from adafruit_display_shapes.roundrect import RoundRect
+
+class Button():
+    RECT = const(0)
+    ROUNDRECT = const(1)
+    def __init__(self, *, x, y, width, height, style=RECT,
+                 fill_color=None, outline_color=0x808080,
+                 label=None, label_font=None, label_color=0x808080):
+        self.x = x
+        self.y = y
+        self.width = width
+        self.height = height
+        self._font = label_font
+
+        self.group = displayio.Group()
+
+        if outline_color or fill_color:
+            self.body = Rect(x, y, width, height,
+                             fill=fill_color, outline=outline_color)
+            self.group.append(self.body)
+
+        if label:   # button with text label
+            if not label_font:
+                raise RuntimeError("Please provide label font")
+            dims = label_font.text_bounding_box(label)
+            if dims[2] >= width or dims[3] >= height:
+                raise RuntimeError("Button not large enough for label")
+            self.label = TextArea(label_font, text=label)
+            self.label.x = x + (width - dims[2])//2
+            self.label.y = y + (height - dims[3])
+            self.label.color = label_color
+            self.group.append(self.label)
+            print(dims)
+
+        """
+        #else: # ok just a bounding box
+            #self.bodyshape = displayio.Shape(width, height)
+            #self.group.append(self.bodyshape)
+        """
+    def contains(self, point):
+        return (self.x <= point[0] <= self.x+self.width) and (self.y <= point[1] <= self.y+self.height)