class SnackInterface():
def __init__(self,
margin,
title,
message=None,
vendor_text=None,
args=None):
self.debug_mode = args is not None and args.debug
self.screen = SnackScreen()
# set usual colors
for i in colorsets["ROOT"], colorsets["ROOTTEXT"], colorsets[
"HELPLINE"], colorsets["EMPTYSCALE"]:
self.screen.setColor(i, "white", "blue") if not self.debug_mode else \
self.screen.setColor(i, "brightgreen", "black")
# remove silly default help text
self.screen.popHelpLine()
# write static messages
self.screen.drawRootText((self.screen.width - len(message)) // 2, 4,
message)
self.screen.drawRootText(-len(vendor_text) - 2, -2, vendor_text)
if self.debug_mode:
# write some static debug information
self.screen.drawRootText(1, 1, _("DEBUG MODE"))
self.screen.drawRootText(
2, 2, "screen {}×{}".format(self.screen.width,
self.screen.height))
self.screen.drawRootText(2, 3, "file {}".format(args.input))
self.window_width = self.screen.width - margin * 2
# assemble our progress bar
self.scale = Scale(self.window_width, 100)
self.spacer = Label("")
self.taskbox = Textbox(self.window_width - 2, 1, "")
self.messagebox = Textbox(self.window_width - 8, 1, " . . . ")
self.grid = Grid(1, 4)
self.grid.setField(self.scale, 0, 0)
self.grid.setField(self.spacer, 0, 1)
self.grid.setField(self.taskbox, 0, 2)
self.grid.setField(self.messagebox, 0, 3)
self.grid.place(1, 1)
self.screen.gridWrappedWindow(self.grid, title)
self.form = Form()
self.form.add(self.scale)
self.form.add(self.taskbox)
self.form.add(self.messagebox)
self.form.draw()
self.screen.refresh()
def update_task(self, percent, task, description):
self.taskbox.setText(description)
self.update(percent, "")
def update(self, percent, text=None):
progress = int(percent)
self.scale.set(progress)
self.form.draw()
self.screen.refresh()
if text is not None:
self.messagebox.setText(text)
self.form.draw()
self.screen.refresh()
def debug(self, message):
self.screen.popHelpLine()
self.screen.pushHelpLine("[DEBUG] {}".format(message))
self.screen.refresh()
def cleanup(self):
self.screen.popWindow()
self.screen.finish()
