def insert_new_page_at(self, index, bg_source=None):
"""
Insert a new page at the given index.
Parameters:
index -- Index/site number that this page will have.
bg_source -- The bg_source for this page. None results in a blank page.
"""
if bg_source is None:
bg_source = Backgrounds.empty_background()
new_page = DocumentPage(self, index, bg_source)
if new_page.boundingRect().width() > self.max_width:
self.max_width = new_page.boundingRect().width()
self.pages.insert(index, new_page)
# Move all pages after this down to accommodate it.
for i in range(index + 1, len(self.pages)):
self.pages[i].page_number = i
self.pages[i].update_bounding_rect()
self.refresh_viewport_size()
def plain_bg(self):
""" Set the background to plain. """
parent = self.parentItem()
parent.bg_source = Backgrounds.empty_background(size=parent.bg_source.sizeF())
parent.background_is_dirty = True