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Speedups

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This commit is contained in:
Jonathan Corwin 2010-09-16 22:19:51 +01:00
parent 46e2eb155b
commit 2ad441e883
6 changed files with 37 additions and 31 deletions
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2
openlp/core/lib/__init__.py
View File

@ -220,6 +220,7 @@ def image_to_byte(image):
``image``
The image to converted.
"""
log.debug(u'image_to_byte')
byte_array = QtCore.QByteArray()
# use buffer to store pixmap into byteArray
buffie = QtCore.QBuffer(byte_array)
@ -249,6 +250,7 @@ def resize_image(image, width, height, background=QtCore.Qt.black):
The background colour defaults to black.
"""
log.debug(u'resize_image')
preview = QtGui.QImage(image)
if not preview.isNull():
# Only resize if different size

6
openlp/core/lib/htmlbuilder.py
View File

@ -27,8 +27,6 @@
import logging
from PyQt4 import QtWebKit
from openlp.core.lib import image_to_byte
log = logging.getLogger(__name__)
HTMLSRC = u"""
@ -301,8 +299,8 @@ def build_html(item, screen, alert, islive):
height = screen[u'size'].height()
theme = item.themedata
webkitvers = webkit_version()
if item.bg_frame:
image = u'data:image/png;base64,%s' % image_to_byte(item.bg_frame)
if item.bg_image_bytes:
image = u'data:image/png;base64,%s' % item.bg_image_bytes
else:
image = u''
html = HTMLSRC % (build_background_css(item, width, height),

51
openlp/core/lib/renderer.py
View File

@ -32,7 +32,8 @@ import logging
from PyQt4 import QtGui, QtCore, QtWebKit
from openlp.core.lib import resize_image, expand_tags, \
build_lyrics_format_css, build_lyrics_outline_css
build_lyrics_format_css, build_lyrics_outline_css, image_to_byte
log = logging.getLogger(__name__)
@ -54,6 +55,9 @@ class Renderer(object):
self.frame = None
self.bg_frame = None
self.bg_image = None
self.bg_image_bytes = None
self.web = QtWebKit.QWebView()
self.web.setVisible(False)
def set_theme(self, theme):
"""
@ -66,15 +70,12 @@ class Renderer(object):
self._theme = theme
self.bg_frame = None
self.bg_image = None
self.bg_image_bytes = None
self._bg_image_filename = None
self.theme_name = theme.theme_name
if theme.background_type == u'image':
if theme.background_filename:
self._bg_image_filename = unicode(theme.background_filename)
if self.frame:
self.bg_image = resize_image(self._bg_image_filename,
self.frame.width(),
self.frame.height())
def set_text_rectangle(self, rect_main, rect_footer):
"""
@ -88,7 +89,21 @@ class Renderer(object):
"""
log.debug(u'set_text_rectangle %s , %s' % (rect_main, rect_footer))
self._rect = rect_main
self._rect_footer = rect_footer
self._rect_footer = rect_footer
self.page_width = self._rect.width()
self.page_height = self._rect.height()
if self._theme.display_shadow:
self.page_width -= int(self._theme.display_shadow_size)
self.page_height -= int(self._theme.display_shadow_size)
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
self.page_shell = u'<html><head><style>' \
u'*{margin: 0; padding: 0; border: 0;} '\
u'#main {position:absolute; top:0px; %s %s}</style><body>' \
u'<div id="main">' % \
(build_lyrics_format_css(self._theme, self.page_width,
self.page_height), build_lyrics_outline_css(self._theme))
def set_frame_dest(self, frame_width, frame_height):
"""
@ -110,15 +125,18 @@ class Renderer(object):
self.frame.width(), self.frame.height())
if self._theme.background_type == u'image':
self.bg_frame = QtGui.QImage(self.frame.width(),
self.frame.height(), QtGui.QImage.Format_ARGB32_Premultiplied)
self.frame.height(),
QtGui.QImage.Format_ARGB32_Premultiplied)
painter = QtGui.QPainter()
painter.begin(self.bg_frame)
painter.fillRect(self.frame.rect(), QtCore.Qt.black)
if self.bg_image:
painter.drawImage(0, 0, self.bg_image)
painter.end()
self.bg_image_bytes = image_to_byte(self.bg_frame)
else:
self.bg_frame = None
self.bg_image_bytes = None
def format_slide(self, words, line_break):
"""
@ -139,29 +157,16 @@ class Renderer(object):
lines = verse.split(u'\n')
for line in lines:
text.append(line)
web = QtWebKit.QWebView()
web.resize(self._rect.width(), self._rect.height())
web.setVisible(False)
frame = web.page().mainFrame()
# Adjust width and height to account for shadow. outline done in css
width = self._rect.width() - int(self._theme.display_shadow_size)
height = self._rect.height() - int(self._theme.display_shadow_size)
shell = u'<html><head><style>#main {%s %s}</style><body>' \
u'<div id="main">' % \
(build_lyrics_format_css(self._theme, width, height),
build_lyrics_outline_css(self._theme))
formatted = []
html_text = u''
styled_text = u''
js_height = 'document.getElementById("main").scrollHeight'
for line in text:
styled_line = expand_tags(line) + line_end
styled_text += styled_line
html = shell + styled_text + u'</div></body></html>'
web.setHtml(html)
html = self.page_shell + styled_text + u'</div></body></html>'
self.web.setHtml(html)
# Text too long so go to next page
text_height = int(frame.evaluateJavaScript(js_height).toString())
if text_height > height:
if self.web_frame.contentsSize().height() > self.page_height:
formatted.append(html_text)
html_text = u''
styled_text = styled_line

1
openlp/core/lib/rendermanager.py
View File

@ -223,7 +223,6 @@ class RenderManager(object):
The words to go on the slides.
"""
log.debug(u'format slide')
self.build_text_rectangle(self.themedata)
return self.renderer.format_slide(words, line_break)
def calculate_default(self, screen):

6
openlp/core/lib/serviceitem.py
View File

@ -97,7 +97,7 @@ class ServiceItem(object):
self.themedata = None
self.main = None
self.footer = None
self.bg_frame = None
self.bg_image_bytes = None
def _new_item(self):
"""
@ -145,7 +145,7 @@ class ServiceItem(object):
"""
log.debug(u'Render called')
self._display_frames = []
self.bg_frame = None
self.bg_image_bytes = None
line_break = True
if self.is_capable(ItemCapabilities.NoLineBreaks):
line_break = False
@ -156,7 +156,7 @@ class ServiceItem(object):
theme = self.theme
self.main, self.footer = \
self.render_manager.set_override_theme(theme, useOverride)
self.bg_frame = self.render_manager.renderer.bg_frame
self.bg_image_bytes = self.render_manager.renderer.bg_image_bytes
self.themedata = self.render_manager.renderer._theme
for slide in self._raw_frames:
before = time.time()

2
openlp/core/ui/maindisplay.py
View File

@ -341,7 +341,9 @@ class MainDisplay(DisplayWidget):
self.serviceItem = serviceItem
html = build_html(self.serviceItem, self.screen, self.parent.alertTab,
self.isLive)
log.debug(u'buildHtml - pre setHtml')
self.webView.setHtml(html)
log.debug(u'buildHtml - post setHtml')
if serviceItem.foot_text and serviceItem.foot_text:
self.footer(serviceItem.foot_text)
# if was hidden keep it hidden