Mercurial > MadButterfly
diff pyink/frameline.py @ 1153:5abf419d66e5
Refactory methods of state awared drawing to frameline_draw_state
| author | Thinker K.F. Li <thinker@codemud.net> |
|---|---|
| date | Mon, 27 Dec 2010 15:37:03 +0800 |
| parents | d333baa702a9 |
| children | 1c9ef65c74b2 |
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--- a/pyink/frameline.py Mon Dec 27 14:18:05 2010 +0800 +++ b/pyink/frameline.py Mon Dec 27 15:37:03 2010 +0800 @@ -271,162 +271,31 @@ pass pass -## Show frame status of a layer -# -# \section frameline_sigs Signals -# - 'frame-button-pree' for user press on a frame. -# - callback(widget, frame_idx, button) + +## \brief Drawing frameline according state of a frameline. # -# All methos that change state of the frameline, must call methods to update -# the screen. +# Thsi class calls methods of class frameline_draw to drawing frameline. But, +# this class is state awared. It according states of an instance to determines +# calling methods and arguments. This class decorates methods of +# frameline_draw class according states of an instance. # -class frameline(frameline_draw): - _sig_frame_but_press = None - +# This classs reading state of a frameline, but it does not change and control +# states. The deriving classes are responsible to change and control states. +# +class frameline_draw_state(frameline_draw): # tween types TWEEN_TYPE_NONE = 0 TWEEN_TYPE_MOVE = 1 TWEEN_TYPE_SHAPE = 2 - FRAME_BUT_PRESS = 'frame-button-press' - - def __new__(clz, *args): - fl_obj = frameline_draw.__new__(clz, *args) + def __init__(self, num_frames): + frameline_draw.__init__(self) - if not clz._sig_frame_but_press: - but_press = gobject.signal_new(frameline.FRAME_BUT_PRESS, - frameline._type, - gobject.SIGNAL_RUN_FIRST, - gobject.TYPE_NONE, - (gobject.TYPE_INT, - gobject.TYPE_INT)) - clz._sig_frame_but_press = but_press - pass - return fl_obj - - def __init__(self, num_frames=20): - self.connect('button-press-event', self._press_hdl) - self.connect('expose-event', self._fl_expose) - self.connect('motion-notify-event', self._motion_hdl) self._num_frames = num_frames self._keys = [] self._active_frame = -1 - self._last_hover = -1 # frame index of last hover self._drawing = False - pass - - def __len__(self): - return self._num_frames - - def _find_keyframe(self, idx): - key_indic = [key.idx for key in self._keys] - key_pos = key_indic.index(idx) - return key_pos - - def _find_keyframe_floor(self, frame_idx): - pos = 0 - keys = [key.idx for key in self._keys] - keys.append(frame_idx) - keys.sort() - keys.reverse() - pos = (len(keys) - 1) - keys.index(frame_idx) - 1 - return pos - - ## \brief Find the range a continous tween. - # - def _find_tween_range(self, key_pos): - key = self._keys[key_pos] - if not (key.left_tween or key.right_tween): - raise ValueError, 'the keyframe is not in a tween' - - # - # Initialize tween type and first_pos - # - if key.right_tween: - tween_type = key.right_tween_type - first_pos = key_pos - else: - # key.left_tween is True since the key is in a tween. - first_pos = key_pos -1 - key = self._keys[first_pos] - tween_type = key.right_tween_type - pass - - # - # Find first_pos - # - while first_pos and key.left_tween: - right_pos = first_pos - 1 - right_key = self._keys[right_pos] - if right_key.right_tween_type != tween_type: - break - first_pos = right_pos - key = right_key - pass - - # - # Find last_pos - # - max_pos = len(self._keys) - 1 - last_pos = key_pos - key = self._keys[last_pos] - while last_pos < max_pos and self._keys[last_pos].right_tween: - if key.right_tween_type != tween_type: - break - last_pos = last_pos + 1 - key = self._keys[last_pos] - pass - - return first_pos, last_pos - - def _press_hdl(self, widget, event): - frame = event.x / self._frame_width - but = event.button - self.emit(frameline.FRAME_BUT_PRESS, frame, but) - pass - - def hide_hover(self): - if self._active_frame != self._last_hover: - self._draw_normal_frame(self._last_hover) - pass pass - - def _motion_hdl(self, widget, event): - frame_idx = int(event.x / self._frame_width) - if self._last_hover != -1: - self._draw_frame(self._last_hover) - if self._last_hover == self._active_frame: - self._draw_active_frame() - pass - pass - - if frame_idx < self._num_frames and frame_idx >= 0: - self._draw_hover_frame(frame_idx) - if self._last_hover == self._active_frame: - self._draw_active_frame() - pass - self._last_hover = frame_idx - else: - self._last_hover = -1 - pass - pass - - def _fl_expose(self, widget, event): - win = self.window - x, y, w, h, depth = win.get_geometry() - if not hasattr(self, '_gc'): - self._gc = gtk.gdk.GC(win) - # - # register for button press event - # - emask = win.get_events() - emask = emask | gtk.gdk.BUTTON_PRESS_MASK | \ - gtk.gdk.POINTER_MOTION_MASK - win.set_events(emask) - self._drawing = True - pass - self.update() - pass def _draw_keyframe(self, frame_idx): # Only keyframes that is not right-side of NONE type tween should be @@ -557,6 +426,174 @@ return self._draw_hover(frame_idx) pass + + ## \brief Start future drawing actions + # + def start_drawing(self): + if not hasattr(self, '_gc'): + win = self.window + self._gc = gtk.gdk.GC(win) + # + # register for button press event + # + emask = win.get_events() + emask = emask | gtk.gdk.BUTTON_PRESS_MASK | \ + gtk.gdk.POINTER_MOTION_MASK + win.set_events(emask) + pass + self._drawing = True + pass + + ## \brief Stop any future drawing actions + # + # When doing massive udpate, to stop drawing the screen make + # application more effecient. The screen is updated by calling + # update() method after massive update and calliing start_drawing(). + # + def stop_drawing(self): + self._drawing = False + pass + pass + + +## Show frame status of a layer +# +# \section frameline_sigs Signals +# - 'frame-button-pree' for user press on a frame. +# - callback(widget, frame_idx, button) +# +# All methos that change state of the frameline, must call methods to update +# the screen. +# +class frameline(frameline_draw_state): + _sig_frame_but_press = None + + FRAME_BUT_PRESS = 'frame-button-press' + + def __new__(clz, *args): + fl_obj = frameline_draw_state.__new__(clz, *args) + + if not clz._sig_frame_but_press: + but_press = gobject.signal_new(frameline.FRAME_BUT_PRESS, + frameline._type, + gobject.SIGNAL_RUN_FIRST, + gobject.TYPE_NONE, + (gobject.TYPE_INT, + gobject.TYPE_INT)) + clz._sig_frame_but_press = but_press + pass + return fl_obj + + def __init__(self, num_frames=20): + frameline_draw_state.__init__(self, num_frames) + + self.connect('button-press-event', self._press_hdl) + self.connect('expose-event', self._fl_expose) + self.connect('motion-notify-event', self._motion_hdl) + self._last_hover = -1 # frame index of last hover + pass + + def __len__(self): + return self._num_frames + + def _find_keyframe(self, idx): + key_indic = [key.idx for key in self._keys] + key_pos = key_indic.index(idx) + return key_pos + + def _find_keyframe_floor(self, frame_idx): + pos = 0 + keys = [key.idx for key in self._keys] + keys.append(frame_idx) + keys.sort() + keys.reverse() + pos = (len(keys) - 1) - keys.index(frame_idx) - 1 + return pos + + ## \brief Find the range a continous tween. + # + def _find_tween_range(self, key_pos): + key = self._keys[key_pos] + if not (key.left_tween or key.right_tween): + raise ValueError, 'the keyframe is not in a tween' + + # + # Initialize tween type and first_pos + # + if key.right_tween: + tween_type = key.right_tween_type + first_pos = key_pos + else: + # key.left_tween is True since the key is in a tween. + first_pos = key_pos -1 + key = self._keys[first_pos] + tween_type = key.right_tween_type + pass + + # + # Find first_pos + # + while first_pos and key.left_tween: + right_pos = first_pos - 1 + right_key = self._keys[right_pos] + if right_key.right_tween_type != tween_type: + break + first_pos = right_pos + key = right_key + pass + + # + # Find last_pos + # + max_pos = len(self._keys) - 1 + last_pos = key_pos + key = self._keys[last_pos] + while last_pos < max_pos and self._keys[last_pos].right_tween: + if key.right_tween_type != tween_type: + break + last_pos = last_pos + 1 + key = self._keys[last_pos] + pass + + return first_pos, last_pos + + def _press_hdl(self, widget, event): + frame = event.x / self._frame_width + but = event.button + self.emit(frameline.FRAME_BUT_PRESS, frame, but) + pass + + def hide_hover(self): + if self._active_frame != self._last_hover: + self._draw_normal_frame(self._last_hover) + pass + pass + + def _motion_hdl(self, widget, event): + frame_idx = int(event.x / self._frame_width) + if self._last_hover != -1: + self._draw_frame(self._last_hover) + if self._last_hover == self._active_frame: + self._draw_active_frame() + pass + pass + + if frame_idx < self._num_frames and frame_idx >= 0: + self._draw_hover_frame(frame_idx) + if self._last_hover == self._active_frame: + self._draw_active_frame() + pass + self._last_hover = frame_idx + else: + self._last_hover = -1 + pass + pass + + def _fl_expose(self, widget, event): + win = self.window + self.start_drawing() + self.update() + pass def set_tween_type(self, frame_idx, tween_type): pos = self._find_keyframe(frame_idx) @@ -570,11 +607,6 @@ pass def update(self): - if not self._drawing: - return - - win = self.window - x, y, w, h, depth = win.get_geometry() self._draw_all_frames() self._draw_active_frame() pass @@ -643,7 +675,7 @@ ## Tween the key frame specified by an index and the key frame at right. # # \see http://www.entheosweb.com/Flash/shape_tween.asp - def tween(self, idx, tween_type=TWEEN_TYPE_NONE): + def tween(self, idx, tween_type=frameline_draw_state.TWEEN_TYPE_NONE): pos = self._find_keyframe(idx) key = self._keys[pos] @@ -722,7 +754,6 @@ def set_num_frames(self, num): self._num_frames = num - self._ pass def reset(self): @@ -730,22 +761,6 @@ self._active_frame = -1 self._draw_all_frames() pass - - ## \brief Start future drawing actions - # - def start_drawing(self): - self._drawing = True - pass - - ## \brief Stop any future drawing actions - # - # When doing massive udpate, to stop drawing the screen make - # application more effecient. The screen is updated by calling - # update() method after massive update and calliing start_drawing(). - # - def stop_drawing(self): - self._drawing = False - pass pass if __name__ == '__main__':