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Rendering speedups/fixes 

bzr-revno: 1046
This commit is contained in:
Jonathan Corwin 2010-09-20 19:11:00 +01:00
parent c2d0204862 827eb93c67
commit 906f33026a
7 changed files with 61 additions and 47 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

10
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"""
@ -274,7 +272,7 @@ body {
</script>
</head>
<body>
<img id="image" class="size" src="%s" />
<img id="image" class="size" %s />
<video id="video" class="size"></video>
%s
<div id="footer" class="footer"></div>
@ -301,10 +299,10 @@ 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'src="data:image/png;base64,%s"' % item.bg_image_bytes
else:
image = u''
image = u'style="display:none;"'
html = HTMLSRC % (build_background_css(item, width, height),
width, height,
build_alert_css(alert, width),

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 +55,7 @@ class Renderer(object):
self.frame = None
self.bg_frame = None
self.bg_image = None
self.bg_image_bytes = None
def set_theme(self, theme):
"""
@ -66,15 +68,12 @@ 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 +87,23 @@ 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 = QtWebKit.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
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()

26
openlp/core/ui/maindisplay.py
View File

@ -99,6 +99,7 @@ class MainDisplay(DisplayWidget):
self.alertTab = None
self.hide_mode = None
self.setWindowTitle(u'OpenLP Display')
self.setStyleSheet(u'border: 0px; margin: 0px; padding: 0px;')
self.setWindowFlags(QtCore.Qt.FramelessWindowHint |
QtCore.Qt.WindowStaysOnTopHint)
if self.isLive:
@ -116,12 +117,18 @@ class MainDisplay(DisplayWidget):
self.screen = self.screens.current
self.setVisible(False)
self.setGeometry(self.screen[u'size'])
self.scene = QtGui.QGraphicsScene()
self.setScene(self.scene)
self.webView = QtWebKit.QGraphicsWebView()
self.scene.addItem(self.webView)
self.webView.resize(self.screen[u'size'].width(),
self.screen[u'size'].height())
try:
self.webView = QtWebKit.QGraphicsWebView()
self.scene = QtGui.QGraphicsScene(self)
self.setScene(self.scene)
self.scene.addItem(self.webView)
self.webView.setGeometry(QtCore.QRectF(0, 0,
self.screen[u'size'].width(), self.screen[u'size'].height()))
except AttributeError:
# QGraphicsWebView a recent addition, so fall back to QWebView
self.webView = QtWebKit.QWebView(self)
self.webView.setGeometry(0, 0,
self.screen[u'size'].width(), self.screen[u'size'].height())
self.page = self.webView.page()
self.frame = self.page.mainFrame()
QtCore.QObject.connect(self.webView,
@ -306,6 +313,7 @@ class MainDisplay(DisplayWidget):
# We must have a service item to preview
if not hasattr(self, u'serviceItem'):
return
Receiver.send_message(u'openlp_process_events')
if self.isLive:
# Wait for the fade to finish before geting the preview.
# Important otherwise preview will have incorrect text if at all !
@ -318,6 +326,8 @@ class MainDisplay(DisplayWidget):
# Important otherwise first preview will miss the background !
while not self.loaded:
Receiver.send_message(u'openlp_process_events')
if self.isLive:
self.setVisible(True)
preview = QtGui.QImage(self.screen[u'size'].width(),
self.screen[u'size'].height(),
QtGui.QImage.Format_ARGB32_Premultiplied)
@ -326,8 +336,6 @@ class MainDisplay(DisplayWidget):
self.frame.render(painter)
painter.end()
# Make display show up if in single screen mode
if self.isLive:
self.setVisible(True)
return preview
def buildHtml(self, serviceItem):
@ -341,7 +349,9 @@ 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

12
openlp/core/ui/slidecontroller.py
View File

@ -637,9 +637,9 @@ class SlideController(QtGui.QWidget):
"""
if not self.serviceItem:
return
Receiver.send_message(u'%s_first' % self.serviceItem.name.lower(),
[self.serviceItem, self.isLive])
if self.serviceItem.is_command():
Receiver.send_message(u'%s_first' % self.serviceItem.name.lower(),
[self.serviceItem, self.isLive])
self.updatePreview()
else:
self.PreviewListWidget.selectRow(0)
@ -652,9 +652,9 @@ class SlideController(QtGui.QWidget):
index = int(message[0])
if not self.serviceItem:
return
Receiver.send_message(u'%s_slide' % self.serviceItem.name.lower(),
[self.serviceItem, self.isLive, index])
if self.serviceItem.is_command():
Receiver.send_message(u'%s_slide' % self.serviceItem.name.lower(),
[self.serviceItem, self.isLive, index])
self.updatePreview()
else:
self.PreviewListWidget.selectRow(index)
@ -769,9 +769,9 @@ class SlideController(QtGui.QWidget):
row = self.PreviewListWidget.currentRow()
self.selectedRow = 0
if row > -1 and row < self.PreviewListWidget.rowCount():
Receiver.send_message(u'%s_slide' % self.serviceItem.name.lower(),
[self.serviceItem, self.isLive, row])
if self.serviceItem.is_command() and self.isLive:
Receiver.send_message(u'%s_slide' % self.serviceItem.name.lower(),
[self.serviceItem, self.isLive, row])
self.updatePreview()
else:
frame, raw_html = self.serviceItem.get_rendered_frame(row)