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More robust flip animation

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This commit is contained in:
Kovid Goyal 2010-12-16 09:57:00 -07:00
parent 9b7ebac28a
commit a6bebd5d75
2 changed files with 17 additions and 14 deletions
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25
src/calibre/gui2/viewer/documentview.py
View File

@ -648,7 +648,9 @@ class DocumentView(QWebView):
def load_path(self, path, pos=0.0):
if self.load_flip_direction is not None:
self.flipper.initialize(self.current_page_image())
self.flipper.initialize(self.current_page_image(),
self.load_flip_direction=='next')
self.load_flip_direction = None
self.initial_pos = pos
mt = getattr(path, 'mime_type', None)
if mt is None:
@ -711,11 +713,13 @@ class DocumentView(QWebView):
self.manager.scrolled(self.document.scroll_fraction)
self.turn_off_internal_scrollbars()
if self.load_flip_direction is not None:
self.flipper(self.current_page_image(),
duration=self.document.page_flip_duration,
forwards=self.load_flip_direction == 'next')
self.load_flip_direction = None
if self.flipper.isVisible():
if self.flipper.running:
self.flipper.setVisible(False)
else:
self.flipper(self.current_page_image(),
duration=self.document.page_flip_duration)
def turn_off_internal_scrollbars(self):
self.document.mainFrame().setScrollBarPolicy(Qt.Vertical, Qt.ScrollBarAlwaysOff)
@ -771,10 +775,11 @@ class DocumentView(QWebView):
upper_limit = 0
if upper_limit < opos:
if epf:
self.flipper.initialize(self.current_page_image())
self.flipper.initialize(self.current_page_image(),
forwards=False)
self.document.scroll_to(self.document.xpos, upper_limit)
if epf:
self.flipper(self.current_page_image(), forwards=False,
self.flipper(self.current_page_image(),
duration=self.document.page_flip_duration)
if self.manager is not None:
self.manager.scrolled(self.scroll_fraction)
@ -831,10 +836,8 @@ class DocumentView(QWebView):
return
#print 'Setting padding to:', lower_limit - max_y
self.document.set_bottom_padding(lower_limit - max_y)
before_img = None
if epf:
before_img = self.current_page_image()
self.flipper.initialize(before_img)
self.flipper.initialize(self.current_page_image())
#print 'Document height:', self.document.height
max_y = self.document.height - window_height
lower_limit = min(max_y, lower_limit)

6
src/calibre/gui2/viewer/flip.py
View File

@ -29,16 +29,16 @@ class SlideFlip(QWidget):
def running(self):
return self.animation.state() == self.animation.Running
def initialize(self, image):
def initialize(self, image, forwards=True):
self.flip_forwards = forwards
self.before_image = QPixmap.fromImage(image)
self.after_image = None
self.setGeometry(0, 0, image.width(), image.height())
self.setVisible(True)
def __call__(self, image, duration=0.5, forwards=True):
def __call__(self, image, duration=0.5):
if self.running:
return
self.flip_forwards = forwards
self.after_image = QPixmap.fromImage(image)
if self.flip_forwards: