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comparison pyink/frameline.py @ 1193:0e3a65b7b00c

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Simplify extendScened()
author Thinker K.F. Li <thinker@codemud.net>
date Sun, 02 Jan 2011 18:26:30 +0800
parents bfd7d466a022
children 8c5492b096f1
comparison
equal deleted inserted replaced
1192:79a3f82edaac 1193:0e3a65b7b00c
788 # - If the index frame is in a tween, it returns the range of the tween. 788 # - If the index frame is in a tween, it returns the range of the tween.
789 # 789 #
790 # - If the indexed frame is a key frame with no right_tween, returns the 790 # - If the indexed frame is a key frame with no right_tween, returns the
791 # range that start and stop are both equivalent to idx. 791 # range that start and stop are both equivalent to idx.
792 # 792 #
793 # - If both earlier two are not meat, the previesou keyframe or tween is
794 # returned.
795 #
793 # - Otherwise, raise an exception. 796 # - Otherwise, raise an exception.
794 # 797 #
795 # \param idx is the index number of a frame. 798 # \param idx is the index number of a frame.
796 # \return A tuple of (start, stop, tween_type) 799 # \return A tuple of (start, stop, tween_type)
797 # 800 #
798 def get_frame_block(self, idx): 801 def get_frame_block_floor(self, idx):
799 pos = self._find_keyframe_floor(idx) 802 pos = self._find_keyframe_floor(idx)
800 if pos != -1: 803 if pos != -1:
801 key = self._keys[pos] 804 key = self._keys[pos]
802 if key.right_tween: 805 if key.right_tween:
803 next_key = self._keys[pos + 1] 806 next_key = self._keys[pos + 1]
804 return key.idx, next_key.idx, key.right_tween_type 807 return key.idx, next_key.idx, key.right_tween_type
805 elif key.idx == idx: 808 if key.left_tween:
806 return key.idx, key.idx, 0 809 prev_key = self._keys[pos - 1]
807 pass 810 return prev_key.idx, key.idx, prev_key.right_tween_type
811 return key.idx, key.idx, 0
808 raise ValueError, \ 812 raise ValueError, \
809 'the frame specified by idx is not in any tween or a key frame' 813 'the frame specified by idx is not in any tween or a key frame'
814
815 ## \brief Return the range of a block of consequence frames (tween).
816 #
817 # - If the index frame is in a tween, it returns the range of the tween.
818 #
819 # - If the indexed frame is a key frame with no right_tween, returns the
820 # range that start and stop are both equivalent to idx.
821 #
822 # - Otherwise, raise an exception.
823 #
824 # \param idx is the index number of a frame.
825 # \return A tuple of (start, stop, tween_type)
826 #
827 def get_frame_block(self, idx):
828 start, stop, tween_type = self.get_frame_block_floor(idx)
829 if stop < idx:
830 raise ValueError, \
831 'the frame specified by idx is not in any tween or a key frame'
832 return start, stop, tween_type
810 833
811 def get_frame_data(self, idx): 834 def get_frame_data(self, idx):
812 pos = self._find_keyframe(idx) 835 pos = self._find_keyframe(idx)
813 key = self._keys[pos] 836 key = self._keys[pos]
814 return key.ref 837 return key.ref