lib/engine/gui/cursor.py

   1 from panda3d.core import GraphicsWindow, WindowProperties
   2 from lib.lib.gui import Img
   3 from lib.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     def hide(self): return self.cursor_img.hide()
  12
  13
  14 class MouseCursor(GameObject, MouseCursorFacade):
  15
  16     def __init__(self, filepath, scale, color, hotspot):
  17         GameObject.__init__(self)
  18         MouseCursorFacade.__init__(self)
  19         if not filepath: return
  20         self.__set_std_cursor(False)
  21         self.cursor_img = Img(filepath, scale=scale, foreground=True)
  22         self.cursor_img.img.set_color(color)
  23         #if self.eng.cfg.dev_cfg.functional_test:
  24         #    self.cursor_img.hide()
  25         self.hotspot_dx = scale[0] * (1 - 2 * hotspot[0])
  26         self.hotspot_dy = scale[2] * (1 - 2 * hotspot[1])
  27         #self.eng.attach_obs(self.on_frame)
  28         #self.eng.attach_obs(self.on_frame_unpausable)
  29         taskMgr.add(self.__on_frame, 'on frame cursor')
  30
  31     @staticmethod
  32     def __set_std_cursor(show):
  33         props = WindowProperties()
  34         props.set_cursor_hidden(not show)
  35         if isinstance(base.win, GraphicsWindow):
  36             base.win.requestProperties(props)
  37
  38     #def show_standard(self): self.eng.lib.show_std_cursor()
  39
  40     #def hide_standard(self): self.eng.lib.hide_std_cursor()
  41
  42     #def cursor_top(self):
  43     #    self.cursor_img.reparent_to(self.cursor_img.parent)
  44
  45     def __on_frame(self, task):
  46         mwn = base.mouseWatcherNode
  47         if not mwn: mouse = 0, 0
  48         elif not mwn.hasMouse(): mouse = 0, 0
  49         else: mouse = mwn.get_mouse_x(), mwn.get_mouse_y()
  50         if not mouse: return task.again
  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)