def get_displayed_canvas(self, cursor_x=0, cursor_y=None):
"""Generates the displayed data for a canvas-based output device. The output of this function can be fed to the o.display_image function.
|Doesn't support partly-rendering entries yet."""
menu_text = self.get_displayed_text()
draw = luma_canvas(self.o.device)
d = draw.__enter__()
scrollbar_coordinates = self.get_scrollbar_top_bottom()
#Drawing scrollbar, if applicable
if scrollbar_coordinates == (0, 0):
#left offset is dynamic and depends on whether there's a scrollbar or not
left_offset = self.x_offset
else:
left_offset = self.x_scrollbar_offset
y1, y2 = scrollbar_coordinates
d.rectangle((1, y1, 2, y2), outline="white")
#Drawing cursor, if enabled
if cursor_y is not None:
c_x = cursor_x * self.charwidth
c_y = cursor_y * self.charheight
cursor_dims = (c_x - 1 + left_offset, c_y - 1,
c_x + self.charwidth + left_offset,
c_y + self.charheight)
d.rectangle(cursor_dims, outline="white")
#Drawing the text itself
#http://pillow.readthedocs.io/en/3.1.x/reference/ImageFont.html
font = ImageFont.truetype("ui/fonts/Fixedsys62.ttf", 16)
for i, line in enumerate(menu_text):
y = (i * self.charheight - 1) if i != 0 else 0
d.text((left_offset, y), line, fill="white", font=font)
image = draw.image
del d
del draw
return image
def get_displayed_canvas(self, cursor_x=0, cursor_y=None):
#This view doesn't have a cursor, instead, the entry that's currently active is in the display center
draw = luma_canvas(self.o.device)
d = draw.__enter__()
central_position = (10, 16)
font = ImageFont.truetype("ui/fonts/Fixedsys62.ttf", 32)
current_entry = self.el.contents[self.el.pointer]
d.text(central_position, current_entry[0], fill="white", font=font)
font = ImageFont.truetype("ui/fonts/Fixedsys62.ttf", 16)
if self.el.pointer != 0:
line = self.el.contents[self.el.pointer - 1][0]
d.text((2, 0), line, fill="white", font=font)
if self.el.pointer < len(self.el.contents) - 1:
line = self.el.contents[self.el.pointer + 1][0]
d.text((2, 48), line, fill="white", font=font)
image = draw.image
del d
del draw
return image