mirror of
https://github.com/Febbweiss/mopidy-touchscreen.git
synced 2026-03-04 22:25:39 +00:00
117 lines
4.4 KiB
Python
117 lines
4.4 KiB
Python
import logging
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from .screen_objects import ScrollBar, ScreenObjectsManager, TouchAndTextItem
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from .touch_manager import TouchManager
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logger = logging.getLogger(__name__)
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class ListView():
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def __init__(self, pos, size, base_size, font):
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self.size = size
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self.pos = pos
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self.base_size = base_size
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self.screen_objects = ScreenObjectsManager()
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self.max_rows = self.size[1] / self.base_size
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self.current_item = 0
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self.font = font
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self.list_size = 0
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self.list = []
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self.scrollbar = False
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self.set_list([])
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self.selected = []
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# Sets the list for the lisview. It should be an iterable of strings
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def set_list(self, item_list):
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self.list = item_list
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self.list_size = len(item_list)
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if self.max_rows < self.list_size:
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self.scrollbar = True
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scroll_bar = ScrollBar(
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(self.pos[0] + self.size[0] - self.base_size, self.pos[1]),
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(self.base_size, self.size[1]), self.list_size, self.max_rows)
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self.screen_objects.set_touch_object("scrollbar", scroll_bar)
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else:
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self.scrollbar = False
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self.load_new_item_position(0)
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# Will load items currently displaying in item_pos
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def load_new_item_position(self, item_pos):
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self.current_item = item_pos
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if self.scrollbar:
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self.screen_objects.clear_touch(["scrollbar"])
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else:
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self.screen_objects.clear_touch(None)
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i = self.current_item
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z = 0
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if self.scrollbar:
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width = self.size[0] - self.base_size
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else:
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width = self.size[0]
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while i < self.list_size and z < self.max_rows:
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item = TouchAndTextItem(self.font, self.list[i], (
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self.pos[0], self.pos[1] + self.base_size * z),
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(width, -1))
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self.screen_objects.set_touch_object(str(i), item)
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i += 1
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z += 1
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def render(self, surface):
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self.screen_objects.render(surface)
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def touch_event(self, touch_event):
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if touch_event.type == TouchManager.click \
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or touch_event.type == TouchManager.long_click:
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objects = self.screen_objects.get_touch_objects_in_pos(
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touch_event.current_pos)
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if objects is not None:
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for key in objects:
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if key == "scrollbar":
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direction = self.screen_objects.get_touch_object(
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key).touch(touch_event.current_pos)
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if direction != 0:
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self.move_to(direction)
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else:
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return int(key)
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elif touch_event.type == TouchManager.swipe:
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if touch_event.direction == TouchManager.up:
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self.move_to(-1)
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elif touch_event.direction == TouchManager.down:
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self.move_to(1)
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# Scroll to direction
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# direction == 1 will scroll down
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# direction == -1 will scroll up
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def move_to(self, direction):
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if self.scrollbar:
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if direction == 1:
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self.current_item += self.max_rows
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if self.current_item + self.max_rows > self.list_size:
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self.current_item = self.list_size - self.max_rows
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self.load_new_item_position(self.current_item)
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self.screen_objects.get_touch_object("scrollbar").set_item(
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self.current_item)
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elif direction == -1:
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self.current_item -= self.max_rows
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if self.current_item < 0:
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self.current_item = 0
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self.load_new_item_position(self.current_item)
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self.screen_objects.get_touch_object("scrollbar").set_item(
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self.current_item)
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self.set_selected(self.selected)
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# Set selected items
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def set_selected(self, selected):
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for number in self.selected:
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try:
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self.screen_objects.get_touch_object(str(number)).set_active(
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False)
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except KeyError:
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pass
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for number in selected:
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try:
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self.screen_objects.get_touch_object(str(number)).set_active(
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True)
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except KeyError:
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pass
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self.selected = selected
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