forked from openlp/openlp
568 lines
27 KiB
Python
568 lines
27 KiB
Python
# -*- coding: utf-8 -*-
|
|
# vim: autoindent shiftwidth=4 expandtab textwidth=120 tabstop=4 softtabstop=4
|
|
|
|
###############################################################################
|
|
# OpenLP - Open Source Lyrics Projection #
|
|
# --------------------------------------------------------------------------- #
|
|
# Copyright (c) 2008-2015 OpenLP Developers #
|
|
# --------------------------------------------------------------------------- #
|
|
# This program is free software; you can redistribute it and/or modify it #
|
|
# under the terms of the GNU General Public License as published by the Free #
|
|
# Software Foundation; version 2 of the License. #
|
|
# #
|
|
# This program is distributed in the hope that it will be useful, but WITHOUT #
|
|
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or #
|
|
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for #
|
|
# more details. #
|
|
# #
|
|
# You should have received a copy of the GNU General Public License along #
|
|
# with this program; if not, write to the Free Software Foundation, Inc., 59 #
|
|
# Temple Place, Suite 330, Boston, MA 02111-1307 USA #
|
|
###############################################################################
|
|
|
|
|
|
from PyQt5 import QtGui, QtCore, QtWebKitWidgets
|
|
|
|
from openlp.core.common import Registry, RegistryProperties, OpenLPMixin, RegistryMixin, Settings
|
|
from openlp.core.lib import FormattingTags, ImageSource, ItemCapabilities, ScreenList, ServiceItem, expand_tags, \
|
|
build_lyrics_format_css, build_lyrics_outline_css
|
|
from openlp.core.common import ThemeLevel
|
|
from openlp.core.ui import MainDisplay
|
|
|
|
VERSE = 'The Lord said to {r}Noah{/r}: \n' \
|
|
'There\'s gonna be a {su}floody{/su}, {sb}floody{/sb}\n' \
|
|
'The Lord said to {g}Noah{/g}:\n' \
|
|
'There\'s gonna be a {st}floody{/st}, {it}floody{/it}\n' \
|
|
'Get those children out of the muddy, muddy \n' \
|
|
'{r}C{/r}{b}h{/b}{bl}i{/bl}{y}l{/y}{g}d{/g}{pk}' \
|
|
'r{/pk}{o}e{/o}{pp}n{/pp} of the Lord\n'
|
|
VERSE_FOR_LINE_COUNT = '\n'.join(map(str, range(100)))
|
|
FOOTER = ['Arky Arky (Unknown)', 'Public Domain', 'CCLI 123456']
|
|
|
|
|
|
class Renderer(OpenLPMixin, RegistryMixin, RegistryProperties):
|
|
"""
|
|
Class to pull all Renderer interactions into one place. The plugins will call helper methods to do the rendering but
|
|
this class will provide display defense code.
|
|
"""
|
|
|
|
def __init__(self):
|
|
"""
|
|
Initialise the renderer.
|
|
"""
|
|
super(Renderer, self).__init__(None)
|
|
# Need live behaviour if this is also working as a pseudo MainDisplay.
|
|
self.screens = ScreenList()
|
|
self.theme_level = ThemeLevel.Global
|
|
self.global_theme_name = ''
|
|
self.service_theme_name = ''
|
|
self.item_theme_name = ''
|
|
self.force_page = False
|
|
self._theme_dimensions = {}
|
|
self._calculate_default()
|
|
self.web = QtWebKitWidgets.QWebView()
|
|
self.web.setVisible(False)
|
|
self.web_frame = self.web.page().mainFrame()
|
|
Registry().register_function('theme_update_global', self.set_global_theme)
|
|
|
|
def bootstrap_initialise(self):
|
|
"""
|
|
Initialise functions
|
|
"""
|
|
self.display = MainDisplay(self)
|
|
self.display.setup()
|
|
|
|
def update_display(self):
|
|
"""
|
|
Updates the renderer's information about the current screen.
|
|
"""
|
|
self._calculate_default()
|
|
if self.display:
|
|
self.display.close()
|
|
self.display = MainDisplay(self)
|
|
self.display.setup()
|
|
self._theme_dimensions = {}
|
|
|
|
def update_theme(self, theme_name, old_theme_name=None, only_delete=False):
|
|
"""
|
|
This method updates the theme in ``_theme_dimensions`` when a theme has been edited or renamed.
|
|
|
|
:param theme_name: The current theme name.
|
|
:param old_theme_name: The old theme name. Has only to be passed, when the theme has been renamed.
|
|
Defaults to *None*.
|
|
:param only_delete: Only remove the given ``theme_name`` from the ``_theme_dimensions`` list. This can be
|
|
used when a theme is permanently deleted.
|
|
"""
|
|
if old_theme_name is not None and old_theme_name in self._theme_dimensions:
|
|
del self._theme_dimensions[old_theme_name]
|
|
if theme_name in self._theme_dimensions:
|
|
del self._theme_dimensions[theme_name]
|
|
if not only_delete and theme_name:
|
|
self._set_theme(theme_name)
|
|
|
|
def _set_theme(self, theme_name):
|
|
"""
|
|
Helper method to save theme names and theme data.
|
|
|
|
:param theme_name: The theme name
|
|
"""
|
|
self.log_debug("_set_theme with theme %s" % theme_name)
|
|
if theme_name not in self._theme_dimensions:
|
|
theme_data = self.theme_manager.get_theme_data(theme_name)
|
|
main_rect = self.get_main_rectangle(theme_data)
|
|
footer_rect = self.get_footer_rectangle(theme_data)
|
|
self._theme_dimensions[theme_name] = [theme_data, main_rect, footer_rect]
|
|
else:
|
|
theme_data, main_rect, footer_rect = self._theme_dimensions[theme_name]
|
|
# if No file do not update cache
|
|
if theme_data.background_filename:
|
|
self.image_manager.add_image(theme_data.background_filename,
|
|
ImageSource.Theme, QtGui.QColor(theme_data.background_border_color))
|
|
|
|
def pre_render(self, override_theme_data=None):
|
|
"""
|
|
Set up the theme to be used before rendering an item.
|
|
|
|
:param override_theme_data: The theme data should be passed, when we want to use our own theme data, regardless
|
|
of the theme level. This should for example be used in the theme manager. **Note**, this is **not** to
|
|
be mixed up with the ``set_item_theme`` method.
|
|
"""
|
|
# Just assume we use the global theme.
|
|
theme_to_use = self.global_theme_name
|
|
# The theme level is either set to Service or Item. Use the service theme if one is set. We also have to use the
|
|
# service theme, even when the theme level is set to Item, because the item does not necessarily have to have a
|
|
# theme.
|
|
if self.theme_level != ThemeLevel.Global:
|
|
# When the theme level is at Service and we actually have a service theme then use it.
|
|
if self.service_theme_name:
|
|
theme_to_use = self.service_theme_name
|
|
# If we have Item level and have an item theme then use it.
|
|
if self.theme_level == ThemeLevel.Song and self.item_theme_name:
|
|
theme_to_use = self.item_theme_name
|
|
if override_theme_data is None:
|
|
if theme_to_use not in self._theme_dimensions:
|
|
self._set_theme(theme_to_use)
|
|
theme_data, main_rect, footer_rect = self._theme_dimensions[theme_to_use]
|
|
else:
|
|
# Ignore everything and use own theme data.
|
|
theme_data = override_theme_data
|
|
main_rect = self.get_main_rectangle(override_theme_data)
|
|
footer_rect = self.get_footer_rectangle(override_theme_data)
|
|
self._set_text_rectangle(theme_data, main_rect, footer_rect)
|
|
return theme_data, self._rect, self._rect_footer
|
|
|
|
def set_theme_level(self, theme_level):
|
|
"""
|
|
Sets the theme level.
|
|
|
|
:param theme_level: The theme level to be used.
|
|
"""
|
|
self.theme_level = theme_level
|
|
|
|
def set_global_theme(self):
|
|
"""
|
|
Set the global-level theme name.
|
|
"""
|
|
global_theme_name = Settings().value('themes/global theme')
|
|
self._set_theme(global_theme_name)
|
|
self.global_theme_name = global_theme_name
|
|
|
|
def set_service_theme(self, service_theme_name):
|
|
"""
|
|
Set the service-level theme.
|
|
|
|
:param service_theme_name: The service level theme's name.
|
|
"""
|
|
self._set_theme(service_theme_name)
|
|
self.service_theme_name = service_theme_name
|
|
|
|
def set_item_theme(self, item_theme_name):
|
|
"""
|
|
Set the item-level theme. **Note**, this has to be done for each item we are rendering.
|
|
|
|
:param item_theme_name: The item theme's name.
|
|
"""
|
|
self.log_debug("set_item_theme with theme %s" % item_theme_name)
|
|
self._set_theme(item_theme_name)
|
|
self.item_theme_name = item_theme_name
|
|
|
|
def generate_preview(self, theme_data, force_page=False):
|
|
"""
|
|
Generate a preview of a theme.
|
|
|
|
:param theme_data: The theme to generated a preview for.
|
|
:param force_page: Flag to tell message lines per page need to be generated.
|
|
"""
|
|
# save value for use in format_slide
|
|
self.force_page = force_page
|
|
# build a service item to generate preview
|
|
service_item = ServiceItem()
|
|
if self.force_page:
|
|
# make big page for theme edit dialog to get line count
|
|
service_item.add_from_text(VERSE_FOR_LINE_COUNT)
|
|
else:
|
|
service_item.add_from_text(VERSE)
|
|
service_item.raw_footer = FOOTER
|
|
# if No file do not update cache
|
|
if theme_data.background_filename:
|
|
self.image_manager.add_image(
|
|
theme_data.background_filename, ImageSource.Theme, QtGui.QColor(theme_data.background_border_color))
|
|
theme_data, main, footer = self.pre_render(theme_data)
|
|
service_item.theme_data = theme_data
|
|
service_item.main = main
|
|
service_item.footer = footer
|
|
service_item.render(True)
|
|
if not self.force_page:
|
|
self.display.build_html(service_item)
|
|
raw_html = service_item.get_rendered_frame(0)
|
|
self.display.text(raw_html, False)
|
|
preview = self.display.preview()
|
|
return preview
|
|
self.force_page = False
|
|
|
|
def format_slide(self, text, item):
|
|
"""
|
|
Calculate how much text can fit on a slide.
|
|
|
|
:param text: The words to go on the slides.
|
|
:param item: The :class:`~openlp.core.lib.serviceitem.ServiceItem` item object.
|
|
|
|
"""
|
|
self.log_debug('format slide')
|
|
# Add line endings after each line of text used for bibles.
|
|
line_end = '<br>'
|
|
if item.is_capable(ItemCapabilities.NoLineBreaks):
|
|
line_end = ' '
|
|
# Bibles
|
|
if item.is_capable(ItemCapabilities.CanWordSplit):
|
|
pages = self._paginate_slide_words(text.split('\n'), line_end)
|
|
# Songs and Custom
|
|
elif item.is_capable(ItemCapabilities.CanSoftBreak):
|
|
pages = []
|
|
if '[---]' in text:
|
|
# Remove two or more option slide breaks next to each other (causing infinite loop).
|
|
while '\n[---]\n[---]\n' in text:
|
|
text = text.replace('\n[---]\n[---]\n', '\n[---]\n')
|
|
while ' [---]' in text:
|
|
text = text.replace(' [---]', '[---]')
|
|
while '[---] ' in text:
|
|
text = text.replace('[---] ', '[---]')
|
|
count = 0
|
|
# only loop 5 times as there will never be more than 5 incorrect logical splits on a single slide.
|
|
while True and count < 5:
|
|
slides = text.split('\n[---]\n', 2)
|
|
# If there are (at least) two occurrences of [---] we use the first two slides (and neglect the last
|
|
# for now).
|
|
if len(slides) == 3:
|
|
html_text = expand_tags('\n'.join(slides[:2]))
|
|
# We check both slides to determine if the optional split is needed (there is only one optional
|
|
# split).
|
|
else:
|
|
html_text = expand_tags('\n'.join(slides))
|
|
html_text = html_text.replace('\n', '<br>')
|
|
if self._text_fits_on_slide(html_text):
|
|
# The first two optional slides fit (as a whole) on one slide. Replace the first occurrence
|
|
# of [---].
|
|
text = text.replace('\n[---]', '', 1)
|
|
else:
|
|
# The first optional slide fits, which means we have to render the first optional slide.
|
|
text_contains_split = '[---]' in text
|
|
if text_contains_split:
|
|
try:
|
|
text_to_render, text = text.split('\n[---]\n', 1)
|
|
except ValueError:
|
|
text_to_render = text.split('\n[---]\n')[0]
|
|
text = ''
|
|
text_to_render, raw_tags, html_tags = self._get_start_tags(text_to_render)
|
|
if text:
|
|
text = raw_tags + text
|
|
else:
|
|
text_to_render = text
|
|
text = ''
|
|
lines = text_to_render.strip('\n').split('\n')
|
|
slides = self._paginate_slide(lines, line_end)
|
|
if len(slides) > 1 and text:
|
|
# Add all slides apart from the last one the list.
|
|
pages.extend(slides[:-1])
|
|
if text_contains_split:
|
|
text = slides[-1] + '\n[---]\n' + text
|
|
else:
|
|
text = slides[-1] + '\n' + text
|
|
text = text.replace('<br>', '\n')
|
|
else:
|
|
pages.extend(slides)
|
|
if '[---]' not in text:
|
|
lines = text.strip('\n').split('\n')
|
|
pages.extend(self._paginate_slide(lines, line_end))
|
|
break
|
|
count += 1
|
|
else:
|
|
# Clean up line endings.
|
|
pages = self._paginate_slide(text.split('\n'), line_end)
|
|
else:
|
|
pages = self._paginate_slide(text.split('\n'), line_end)
|
|
new_pages = []
|
|
for page in pages:
|
|
while page.endswith('<br>'):
|
|
page = page[:-4]
|
|
new_pages.append(page)
|
|
return new_pages
|
|
|
|
def _calculate_default(self):
|
|
"""
|
|
Calculate the default dimensions of the screen.
|
|
"""
|
|
screen_size = self.screens.current['size']
|
|
self.width = screen_size.width()
|
|
self.height = screen_size.height()
|
|
self.screen_ratio = self.height / self.width
|
|
self.log_debug('_calculate default %s, %f' % (screen_size, self.screen_ratio))
|
|
# 90% is start of footer
|
|
self.footer_start = int(self.height * 0.90)
|
|
|
|
def get_main_rectangle(self, theme_data):
|
|
"""
|
|
Calculates the placement and size of the main rectangle.
|
|
|
|
:param theme_data: The theme information
|
|
"""
|
|
if not theme_data.font_main_override:
|
|
return QtCore.QRect(10, 0, self.width - 20, self.footer_start)
|
|
else:
|
|
return QtCore.QRect(theme_data.font_main_x, theme_data.font_main_y,
|
|
theme_data.font_main_width - 1, theme_data.font_main_height - 1)
|
|
|
|
def get_footer_rectangle(self, theme_data):
|
|
"""
|
|
Calculates the placement and size of the footer rectangle.
|
|
|
|
:param theme_data: The theme data.
|
|
"""
|
|
if not theme_data.font_footer_override:
|
|
return QtCore.QRect(10, self.footer_start, self.width - 20, self.height - self.footer_start)
|
|
else:
|
|
return QtCore.QRect(theme_data.font_footer_x,
|
|
theme_data.font_footer_y, theme_data.font_footer_width - 1,
|
|
theme_data.font_footer_height - 1)
|
|
|
|
def _set_text_rectangle(self, theme_data, rect_main, rect_footer):
|
|
"""
|
|
Sets the rectangle within which text should be rendered.
|
|
|
|
:param theme_data: The theme data.
|
|
:param rect_main: The main text block.
|
|
:param rect_footer: The footer text block.
|
|
"""
|
|
self.log_debug('_set_text_rectangle %s , %s' % (rect_main, rect_footer))
|
|
self._rect = rect_main
|
|
self._rect_footer = rect_footer
|
|
self.page_width = self._rect.width()
|
|
self.page_height = self._rect.height()
|
|
if theme_data.font_main_shadow:
|
|
self.page_width -= int(theme_data.font_main_shadow_size)
|
|
self.page_height -= int(theme_data.font_main_shadow_size)
|
|
# For the life of my I don't know why we have to completely kill the QWebView in order for the display to work
|
|
# properly, but we do. See bug #1041366 for an example of what happens if we take this out.
|
|
self.web = None
|
|
self.web = QtWebKitWidgets.QWebView()
|
|
self.web.setVisible(False)
|
|
self.web.resize(self.page_width, self.page_height)
|
|
self.web_frame = self.web.page().mainFrame()
|
|
# Adjust width and height to account for shadow. outline done in css.
|
|
html = """<!DOCTYPE html><html><head><script>
|
|
function show_text(newtext) {
|
|
var main = document.getElementById('main');
|
|
main.innerHTML = newtext;
|
|
// We need to be sure that the page is loaded, that is why we
|
|
// return the element's height (even though we do not use the
|
|
// returned value).
|
|
return main.offsetHeight;
|
|
}
|
|
</script><style>*{margin: 0; padding: 0; border: 0;}
|
|
#main {position: absolute; top: 0px; %s %s}</style></head><body>
|
|
<div id="main"></div></body></html>""" % \
|
|
(build_lyrics_format_css(theme_data, self.page_width, self.page_height),
|
|
build_lyrics_outline_css(theme_data))
|
|
self.web.setHtml(html)
|
|
self.empty_height = self.web_frame.contentsSize().height()
|
|
|
|
def _paginate_slide(self, lines, line_end):
|
|
"""
|
|
Figure out how much text can appear on a slide, using the current theme settings.
|
|
|
|
**Note:** The smallest possible "unit" of text for a slide is one line. If the line is too long it will be cut
|
|
off when displayed.
|
|
|
|
:param lines: The text to be fitted on the slide split into lines.
|
|
:param line_end: The text added after each line. Either ``' '`` or ``'<br>``.
|
|
"""
|
|
formatted = []
|
|
previous_html = ''
|
|
previous_raw = ''
|
|
separator = '<br>'
|
|
html_lines = list(map(expand_tags, lines))
|
|
# Text too long so go to next page.
|
|
if not self._text_fits_on_slide(separator.join(html_lines)):
|
|
html_text, previous_raw = self._binary_chop(
|
|
formatted, previous_html, previous_raw, html_lines, lines, separator, '')
|
|
else:
|
|
previous_raw = separator.join(lines)
|
|
formatted.append(previous_raw)
|
|
return formatted
|
|
|
|
def _paginate_slide_words(self, lines, line_end):
|
|
"""
|
|
Figure out how much text can appear on a slide, using the current theme settings.
|
|
|
|
**Note:** The smallest possible "unit" of text for a slide is one word. If one line is too long it will be
|
|
processed word by word. This is sometimes need for **bible** verses.
|
|
|
|
:param lines: The text to be fitted on the slide split into lines.
|
|
:param line_end: The text added after each line. Either ``' '`` or ``'<br>``. This is needed for **bibles**.
|
|
"""
|
|
formatted = []
|
|
previous_html = ''
|
|
previous_raw = ''
|
|
for line in lines:
|
|
line = line.strip()
|
|
html_line = expand_tags(line)
|
|
# Text too long so go to next page.
|
|
if not self._text_fits_on_slide(previous_html + html_line):
|
|
# Check if there was a verse before the current one and append it, when it fits on the page.
|
|
if previous_html:
|
|
if self._text_fits_on_slide(previous_html):
|
|
formatted.append(previous_raw)
|
|
previous_html = ''
|
|
previous_raw = ''
|
|
# Now check if the current verse will fit, if it does not we have to start to process the verse
|
|
# word by word.
|
|
if self._text_fits_on_slide(html_line):
|
|
previous_html = html_line + line_end
|
|
previous_raw = line + line_end
|
|
continue
|
|
# Figure out how many words of the line will fit on screen as the line will not fit as a whole.
|
|
raw_words = self._words_split(line)
|
|
html_words = list(map(expand_tags, raw_words))
|
|
previous_html, previous_raw = \
|
|
self._binary_chop(formatted, previous_html, previous_raw, html_words, raw_words, ' ', line_end)
|
|
else:
|
|
previous_html += html_line + line_end
|
|
previous_raw += line + line_end
|
|
formatted.append(previous_raw)
|
|
return formatted
|
|
|
|
def _get_start_tags(self, raw_text):
|
|
"""
|
|
Tests the given text for not closed formatting tags and returns a tuple consisting of three unicode strings::
|
|
|
|
('{st}{r}Text text text{/r}{/st}', '{st}{r}', '<strong><span style="-webkit-text-fill-color:red">')
|
|
|
|
The first unicode string is the text, with correct closing tags. The second unicode string are OpenLP's opening
|
|
formatting tags and the third unicode string the html opening formatting tags.
|
|
|
|
:param raw_text: The text to test. The text must **not** contain html tags, only OpenLP formatting tags
|
|
are allowed::
|
|
{st}{r}Text text text
|
|
"""
|
|
raw_tags = []
|
|
html_tags = []
|
|
for tag in FormattingTags.get_html_tags():
|
|
if tag['start tag'] == '{br}':
|
|
continue
|
|
if raw_text.count(tag['start tag']) != raw_text.count(tag['end tag']):
|
|
raw_tags.append((raw_text.find(tag['start tag']), tag['start tag'], tag['end tag']))
|
|
html_tags.append((raw_text.find(tag['start tag']), tag['start html']))
|
|
# Sort the lists, so that the tags which were opened first on the first slide (the text we are checking) will be
|
|
# opened first on the next slide as well.
|
|
raw_tags.sort(key=lambda tag: tag[0])
|
|
html_tags.sort(key=lambda tag: tag[0])
|
|
# Create a list with closing tags for the raw_text.
|
|
end_tags = []
|
|
start_tags = []
|
|
for tag in raw_tags:
|
|
start_tags.append(tag[1])
|
|
end_tags.append(tag[2])
|
|
end_tags.reverse()
|
|
# Remove the indexes.
|
|
html_tags = [tag[1] for tag in html_tags]
|
|
return raw_text + ''.join(end_tags), ''.join(start_tags), ''.join(html_tags)
|
|
|
|
def _binary_chop(self, formatted, previous_html, previous_raw, html_list, raw_list, separator, line_end):
|
|
"""
|
|
This implements the binary chop algorithm for faster rendering. This algorithm works line based (line by line)
|
|
and word based (word by word). It is assumed that this method is **only** called, when the lines/words to be
|
|
rendered do **not** fit as a whole.
|
|
|
|
:param formatted: The list to append any slides.
|
|
:param previous_html: The html text which is know to fit on a slide, but is not yet added to the list of
|
|
slides. (unicode string)
|
|
:param previous_raw: The raw text (with formatting tags) which is know to fit on a slide, but is not yet added
|
|
to the list of slides. (unicode string)
|
|
:param html_list: The elements which do not fit on a slide and needs to be processed using the binary chop.
|
|
The text contains html.
|
|
:param raw_list: The elements which do not fit on a slide and needs to be processed using the binary chop.
|
|
The elements can contain formatting tags.
|
|
:param separator: The separator for the elements. For lines this is ``'<br>'`` and for words this is ``' '``.
|
|
:param line_end: The text added after each "element line". Either ``' '`` or ``'<br>``. This is needed for
|
|
bibles.
|
|
"""
|
|
smallest_index = 0
|
|
highest_index = len(html_list) - 1
|
|
index = highest_index // 2
|
|
while True:
|
|
if not self._text_fits_on_slide(previous_html + separator.join(html_list[:index + 1]).strip()):
|
|
# We know that it does not fit, so change/calculate the new index and highest_index accordingly.
|
|
highest_index = index
|
|
index = index - (index - smallest_index) // 2
|
|
else:
|
|
smallest_index = index
|
|
index = index + (highest_index - index) // 2
|
|
# We found the number of words which will fit.
|
|
if smallest_index == index or highest_index == index:
|
|
index = smallest_index
|
|
text = previous_raw.rstrip('<br>') + separator.join(raw_list[:index + 1])
|
|
text, raw_tags, html_tags = self._get_start_tags(text)
|
|
formatted.append(text)
|
|
previous_html = ''
|
|
previous_raw = ''
|
|
# Stop here as the theme line count was requested.
|
|
if self.force_page:
|
|
Registry().execute('theme_line_count', index + 1)
|
|
break
|
|
else:
|
|
continue
|
|
# Check if the remaining elements fit on the slide.
|
|
if self._text_fits_on_slide(html_tags + separator.join(html_list[index + 1:]).strip()):
|
|
previous_html = html_tags + separator.join(html_list[index + 1:]).strip() + line_end
|
|
previous_raw = raw_tags + separator.join(raw_list[index + 1:]).strip() + line_end
|
|
break
|
|
else:
|
|
# The remaining elements do not fit, thus reset the indexes, create a new list and continue.
|
|
raw_list = raw_list[index + 1:]
|
|
raw_list[0] = raw_tags + raw_list[0]
|
|
html_list = html_list[index + 1:]
|
|
html_list[0] = html_tags + html_list[0]
|
|
smallest_index = 0
|
|
highest_index = len(html_list) - 1
|
|
index = highest_index // 2
|
|
return previous_html, previous_raw
|
|
|
|
def _text_fits_on_slide(self, text):
|
|
"""
|
|
Checks if the given ``text`` fits on a slide. If it does ``True`` is returned, otherwise ``False``.
|
|
|
|
:param text: The text to check. It may contain HTML tags.
|
|
"""
|
|
self.web_frame.evaluateJavaScript('show_text("%s")' % text.replace('\\', '\\\\').replace('\"', '\\\"'))
|
|
return self.web_frame.contentsSize().height() <= self.empty_height
|
|
|
|
def _words_split(self, line):
|
|
"""
|
|
Split the slide up by word so can wrap better
|
|
|
|
:param line: Line to be split
|
|
"""
|
|
# this parse we are to be wordy
|
|
line = line.replace('\n', ' ')
|
|
return line.split(' ')
|