ya2/utils/cursor.py

   1 from panda3d.core import GraphicsWindow, WindowProperties
   2 from ya2.p3d.gui import P3dImg as Img
   3
   4
   5 class MouseCursorFacade:
   6
   7     def show(self):
   8         if not self.eng.cfg.dev_cfg.functional_test:
   9             return self.cursor_img.show()
  10
  11     def hide(self):
  12         return self.cursor_img.hide()
  13
  14
  15 class MouseCursor(MouseCursorFacade):
  16
  17     def __init__(self, filepath, scale, color, hotspot):
  18         MouseCursorFacade.__init__(self)
  19         if not filepath:
  20             return
  21         self.__set_std_cursor(False)
  22         self.cursor_img = Img(filepath, scale=scale, foreground=True)
  23         self.cursor_img.img.set_color(color)
  24         # if self.eng.cfg.dev_cfg.functional_test:
  25         #     self.cursor_img.hide()
  26         self.hotspot_dx = scale[0] * (1 - 2 * hotspot[0])
  27         self.hotspot_dy = scale[2] * (1 - 2 * hotspot[1])
  28         # self.eng.attach_obs(self.on_frame)
  29         # self.eng.attach_obs(self.on_frame_unpausable)
  30         self._tsk = taskMgr.add(self.__on_frame, 'on frame cursor')
  31
  32     @staticmethod
  33     def __set_std_cursor(show):
  34         props = WindowProperties()
  35         props.set_cursor_hidden(not show)
  36         if isinstance(base.win, GraphicsWindow):
  37             base.win.requestProperties(props)
  38
  39     # def show_standard(self): self.eng.lib.show_std_cursor()
  40
  41     # def hide_standard(self): self.eng.lib.hide_std_cursor()
  42
  43     # def cursor_top(self):
  44     #     self.cursor_img.reparent_to(self.cursor_img.parent)
  45
  46     def __on_frame(self, task):
  47         mwn = base.mouseWatcherNode
  48         if not mwn or not mwn.hasMouse():
  49             return task.again
  50         mouse = mwn.get_mouse_x(), mwn.get_mouse_y()
  51         h_x = mouse[0] * base.getAspectRatio() + self.hotspot_dx
  52         self.cursor_img.set_pos((h_x, mouse[1] - self.hotspot_dy))
  53         return task.again
  54
  55     # def on_frame(self):
  56     #     if not self.eng.pause.paused: self.__on_frame()
  57
  58     # def on_frame_unpausable(self):
  59     #     if self.eng.pause.paused: self.__on_frame()
  60
  61     def set_image(self, img):
  62         self.cursor_img.img.set_texture(loader.load_texture(img), 1)
  63
  64     def destroy(self):
  65         taskMgr.remove(self._tsk)
  66         self.cursor_img.destroy()