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fix(cli): properly rewind / previous slide after reverse (#28)

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* fix(cli): properly rewind / previous slide after reverse

Closes #24

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
This commit is contained in:
Jérome Eertmans
2022-09-22 19:11:26 +02:00
committed by GitHub
parent 9900b3123e
commit 2457ca8a05
2 changed files with 17 additions and 11 deletions
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15
manim_slides/present.py
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@ -134,6 +134,13 @@ class Presentation:
self.current_cap.set(cv2.CAP_PROP_POS_FRAMES, 0)
def cancel_reverse(self):
"""Cancels any effet produced by a reversed slide."""
if self.reverse:
self.reverse = False
self.reversed_animation = -1
self.release_cap()
def reverse_current_slide(self):
"""Reverses current slide."""
self.reverse = True
@ -142,9 +149,7 @@ class Presentation:
def load_next_slide(self):
"""Loads next slide."""
if self.reverse:
self.reverse = False
self.reversed_animation = -1
self.release_cap()
self.cancel_reverse()
self.rewind_current_slide()
elif self.current_slide.is_last():
self.current_slide.terminated = True
@ -156,6 +161,7 @@ class Presentation:
def load_previous_slide(self):
"""Loads previous slide."""
self.cancel_reverse()
self.current_slide_index = max(0, self.current_slide_index - 1)
self.rewind_current_slide()
@ -425,7 +431,7 @@ class Display:
elif self.config.BACK.match(key):
if self.current_presentation.current_slide_index == 0:
if self.current_presentation_index == 0:
self.current_presentation.rewind_current_slide()
self.current_presentation.load_previous_slide()
else:
self.current_presentation_index -= 1
self.current_presentation.load_last_slide()
@ -437,6 +443,7 @@ class Display:
self.current_presentation.reverse_current_slide()
self.state = State.PLAYING
elif self.config.REWIND.match(key):
self.current_presentation.cancel_reverse()
self.current_presentation.rewind_current_slide()
self.state = State.PLAYING