class Chapter(QtCore.QObject):
"""A Chapter"""
pageChanged = QtCore.pyqtSignal(Page, int)
def __init__(self, name=""):
super(Chapter, self).__init__()
self.name = name
self.book = None
self.root = SoSeparator()
self.root.setName("Chapter:root")
self.pagesSwitch = SoSwitch()
self.pagesSwitch.setName("Chapter:pages")
self.root.addChild(self.pagesSwitch)
self.__pages = nodeDict()
## ============================
self.setupGui()
def setupGui(self):
## self.widget has next, prev buttons, plus a QStackedWidget for holding per page controls
self.widget = ChangePageUI()
## the initial state
self.widget.previous.hide()
self.widget.next.hide()
connect(self.widget.next, "clicked(bool)", self.nextPage)
connect(self.widget.previous, "clicked(bool)", self.prevPage)
## ============================
self.notesStack = QtGui.QStackedWidget()
## ============================
def setBook(self, book):
self.book = book
@property
def pages(self):
"""The list of pages"""
return self.__pages
def createPage(self):
"""
Creates a new page and appends it to this chapter
"""
page = Page()
self.addPage(page)
return page
def addPage(self, page):
"""
Adds 'page' to this chapter. page can be a Page or a SoNode. Searches
page for a 'getGui' function, which should return a widget.
@param page: Page | SoNode
"""
## ============================
## page can be a Page or SoNode
root = getattr(page, "root", page)
self.pages[root] = page
self.pagesSwitch.addChild(root)
## ============================
guiLayout = QtGui.QVBoxLayout()
guiLayout.setMargin(0)
guiLayout.setSpacing(0)
widget = QtGui.QWidget()
widget.setObjectName("PageGui")
widget.setLayout(guiLayout)
self.widget.pageStack.addWidget(widget)
## ============================
notesLayout = QtGui.QVBoxLayout()
notesLayout.setMargin(0)
notesLayout.setSpacing(0)
widget = QtGui.QWidget()
widget.setObjectName("PageNotas")
widget.setLayout(notesLayout)
self.notesStack.addWidget(widget)
## ============================
## this sets self.pagesSwitch, self.widget.pageStack, self.notasStack
## only change the page if theres a book already
if self.book is not None:
self.whichPage = len(self.pagesSwitch) - 1
## ============================
guiLayout.addWidget(page.getGui())
notesLayout.addWidget(page.getNotes())
## ============================
if len(self.pagesSwitch) == 2:
self.widget.previous.show()
self.widget.next.show()
def getGui(self):
return self.widget
def getNotes(self):
return self.notesStack
def chapterSpecificIn(self):
"""code to be executed whenever the chapter is displayed
this is intended for global changes to the scenegraph that
are needed by this chapter
"""
pass
@property
def page(self):
"""the current page"""
if self.whichPage < 0:
return None
return self.pages[self.pagesSwitch[self.whichPage]]
def getWhichPage(self):
"""
Returns the index of the current page
"""
return self.pagesSwitch.whichChild.getValue()
def setWhichPage(self, n):
"""
Activates the n-th page
@param n:
"""
if len(self.pagesSwitch) > 0:
self.pagesSwitch.getChild(n)
self.pagesSwitch.whichChild = n
self.widget.pageStack.setCurrentIndex(n)
self.notesStack.setCurrentIndex(n)
self.pageChanged.emit(self.page, n)
whichPage = property(getWhichPage, setWhichPage)
def changePage(self, direction):
self.whichPage = (self.whichPage + direction) % len(self.pagesSwitch)
def nextPage(self):
self.changePage(1)
def prevPage(self):
self.changePage(-1)
class Chapter(QtCore.QObject):
"""A Chapter"""
pageChanged = QtCore.pyqtSignal(Page, int)
def __init__(self, name=""):
super(Chapter, self).__init__()
self.name = name
self.book = None
self.root = SoSeparator()
self.root.setName("Chapter:root")
self.pagesSwitch = SoSwitch()
self.pagesSwitch.setName("Chapter:pages")
self.root.addChild(self.pagesSwitch)
self.__pages = nodeDict()
## ============================
self.setupGui()
def setupGui(self):
## self.widget has next, prev buttons, plus a QStackedWidget for holding per page controls
self.widget = ChangePageUI()
## the initial state
self.widget.previous.hide()
self.widget.next.hide()
connect(self.widget.next, "clicked(bool)", self.nextPage)
connect(self.widget.previous, "clicked(bool)", self.prevPage)
## ============================
self.notesStack = QtGui.QStackedWidget()
## ============================
def setBook(self, book):
self.book = book
@property
def pages(self):
"""The list of pages"""
return self.__pages
def createPage(self):
"""
Creates a new page and appends it to this chapter
"""
page = Page()
self.addPage(page)
return page
def addPage(self, page):
"""
Adds 'page' to this chapter. page can be a Page or a SoNode. Searches
page for a 'getGui' function, which should return a widget.
@param page: Page | SoNode
"""
## ============================
## page can be a Page or SoNode
root = getattr(page, "root", page)
self.pages[root] = page
self.pagesSwitch.addChild(root)
## ============================
guiLayout = QtGui.QVBoxLayout()
guiLayout.setMargin(0)
guiLayout.setSpacing(0)
widget = QtGui.QWidget()
widget.setObjectName("PageGui")
widget.setLayout(guiLayout)
self.widget.pageStack.addWidget(widget)
## ============================
notesLayout = QtGui.QVBoxLayout()
notesLayout.setMargin(0)
notesLayout.setSpacing(0)
widget = QtGui.QWidget()
widget.setObjectName("PageNotas")
widget.setLayout(notesLayout)
self.notesStack.addWidget(widget)
## ============================
## this sets self.pagesSwitch, self.widget.pageStack, self.notasStack
## only change the page if theres a book already
if self.book is not None:
self.whichPage = len(self.pagesSwitch) - 1
## ============================
guiLayout.addWidget(page.getGui())
notesLayout.addWidget(page.getNotes())
## ============================
if len(self.pagesSwitch) == 2:
self.widget.previous.show()
self.widget.next.show()
def getGui(self):
return self.widget
def getNotes(self):
return self.notesStack
def chapterSpecificIn(self):
"""code to be executed whenever the chapter is displayed
this is intended for global changes to the scenegraph that
are needed by this chapter
"""
pass
@property
def page(self):
"""the current page"""
if self.whichPage < 0:
return None
return self.pages[self.pagesSwitch[self.whichPage]]
def getWhichPage(self):
"""
Returns the index of the current page
"""
return self.pagesSwitch.whichChild.getValue()
def setWhichPage(self, n):
"""
Activates the n-th page
@param n:
"""
if len(self.pagesSwitch) > 0:
self.pagesSwitch.getChild(n)
self.pagesSwitch.whichChild = n
self.widget.pageStack.setCurrentIndex(n)
self.notesStack.setCurrentIndex(n)
self.pageChanged.emit(self.page, n)
whichPage = property(getWhichPage, setWhichPage)
def changePage(self, direction):
self.whichPage = (self.whichPage + direction) % len(self.pagesSwitch)
def nextPage(self):
self.changePage(1)
def prevPage(self):
self.changePage(-1)
