ya2/utils/cursor.py

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