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from PyQt4 import QtCore
from colors import Colors
from demoitem import DemoItem
from demoitemanimation import DemoItemAnimation
from demotextitem import DemoTextItem
from headingitem import HeadingItem
class MenuContentItem(DemoItem):
def __init__(self, el, scene=None, parent=None):
super(MenuContentItem, self).__init__(scene, parent)
self.name = str(el.attribute('name'))
self.heading = None
self.description1 = None
self.description2 = None
readme_dir = QtCore.QFileInfo(__file__).dir()
readme_dir.cdUp()
if str(el.tagName()) != 'demos':
readme_dir.cdUp()
readme_dir.cd(el.attribute('dirname'))
self.readmePath = readme_dir.absoluteFilePath('README')
def prepare(self):
if not self.prepared:
self.prepared= True
self.createContent()
def animationStopped(self, id):
if self.name == Colors.rootMenuName:
# Optimization hack.
return
if id == DemoItemAnimation.ANIM_OUT:
# Free up some memory
self.heading = None
self.description1 = None
self.description2 = None
self.prepared = False
def loadDescription(self, startPara, nrPara):
readme = QtCore.QFile(self.readmePath)
if not readme.open(QtCore.QFile.ReadOnly):
Colors.debug("- MenuContentItem.loadDescription: Could not load:", self.readmePath)
return ""
in_str = QtCore.QTextStream(readme)
# Skip a certain number of paragraphs.
while startPara:
if not in_str.readLine():
startPara -= 1
# Read in the number of wanted paragraphs.
result = ''
line = in_str.readLine()
while True:
result += line + " "
line = in_str.readLine()
if not line:
nrPara -= 1
line = "<br><br>" + in_str.readLine()
if nrPara == 0 or in_str.atEnd():
break
return Colors.contentColor + result
def createContent(self):
# Create the items.
self.heading = HeadingItem(self.name, self.scene(), self)
para1 = self.loadDescription(0, 1)
if not para1:
para1 = Colors.contentColor + "Could not load description. Ensure that the documentation for Qt is built."
bgcolor = Colors.sceneBg1.darker(200)
bgcolor.setAlpha(100)
self.description1 = DemoTextItem(para1, Colors.contentFont(),
Colors.heading, 500, self.scene(), self,
DemoTextItem.STATIC_TEXT)
self.description2 = DemoTextItem(self.loadDescription(1, 2),
Colors.contentFont(), Colors.heading, 250, self.scene(), self,
DemoTextItem.STATIC_TEXT)
# Place the items on screen.
self.heading.setPos(0, 3)
self.description1.setPos(0, self.heading.pos().y() + self.heading.boundingRect().height() + 10)
self.description2.setPos(0, self.description1.pos().y() + self.description1.boundingRect().height() + 15)
def boundingRect(self):
return QtCore.QRectF(0, 0, 500, 350)
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