openteachermaintainers team mailing list archive

[Marten de Vries <marten-de-vries@xxxxxxxxxxx>]

Hello,

I've added the earlier on IRC discussed tabbar at the bottom for lesson
mode switching to the prototype, see the attachement.

- Marten de Vries

import sys
from PyQt4 import QtCore, QtGui

class CloseButton(QtGui.QAbstractButton):
	def __init__(self, parent=None):
		super(self.__class__, self).__init__(parent)
		
		self.setFocusPolicy(QtCore.Qt.NoFocus)
		self.setCursor(QtCore.Qt.ArrowCursor)
		self.setToolTip(self.tr("Close Tab"))
		self.resize(self.sizeHint())

	def sizeHint(self):
		self.ensurePolished()
		width = self.style().pixelMetric(QtGui.QStyle.PM_TabCloseIndicatorWidth, None, self)
		height = self.style().pixelMetric(QtGui.QStyle.PM_TabCloseIndicatorHeight, None, self)
		return QtCore.QSize(width, height)

	def enterEvent(self, event):
		if self.isEnabled():
			self.update()
		super(self.__class__, self).enterEvent(event)

	def leaveEvent(self, event):
		if self.isEnabled():
			self.update()
		super(self.__class__, self).leaveEvent(event)

	def paintEvent(self, event):
		p = QtGui.QPainter(self)
		opt = QtGui.QStyleOption()
		opt.initFrom(self)
		opt.state = opt.state | QtGui.QStyle.State_AutoRaise
		if self.isEnabled() and self.underMouse() and not self.isChecked() and not self.isDown():
			opt.state = opt.state | QtGui.QStyle.State_Raised
		if self.isChecked():
			opt.state = opt.state | QtGui.QStyle.State_On
		if self.isDown():
			opt.state = opt.state | QtGui.QStyle.State_Sunken

		tb = self.parent()

		if tb.__class__ == QtGui.QTabBar:
			index = tb.currentIndex()
			position = self.style().styleHint(QtGui.QStyle.SH_TabBar_CloseButtonPosition, None, tb)

			if tb.tabButton(index, position) == self:
				opt.state = opt.state | QtGui.QStyle.State_Selected

		self.style().drawPrimitive(QtGui.QStyle.PE_IndicatorTabClose, opt, p, self)

class LessonTabWidget(QtGui.QTabWidget):
	def __init__(self, *args, **kwargs):
		super(self.__class__, self).__init__(*args, **kwargs)
		
		self.addTab(QtGui.QWidget(self), "Enter list")
		self.addTab(QtGui.QWidget(self), "Teach me!")
		
		self.setTabPosition(QtGui.QTabWidget.South)
		self.setDocumentMode(True)

class ExpandingButton(QtGui.QPushButton):
	def __init__(self, *args, **kwargs):
		super(self.__class__, self).__init__(*args, **kwargs)
		
		self.setSizePolicy(
			QtGui.QSizePolicy.Expanding,
			QtGui.QSizePolicy.Expanding
		)

class StartWidget(QtGui.QWidget):
	def __init__(self, parent=None):
		super(self.__class__, self).__init__(parent)

		createWordListButton = ExpandingButton("Create word list")
		createTextLessonButton = ExpandingButton("Create text lesson")
		createTopoLessonButton = ExpandingButton("Create topo lesson")
		createButton = ExpandingButton("Create ...")

		createLessonLayout = QtGui.QGridLayout()
		createLessonLayout.addWidget(createWordListButton, 0, 0)
		createLessonLayout.addWidget(createTextLessonButton, 0, 1)
		createLessonLayout.addWidget(createTopoLessonButton, 1, 0)
		createLessonLayout.addWidget(createButton, 1, 1)

		createLessonGroupBox = QtGui.QGroupBox("Create lesson:")
		createLessonGroupBox.setLayout(createLessonLayout)

		loadFromFileButton = ExpandingButton("Load from file")
		loadFromWrtsButton = ExpandingButton("Load from WRTS")
		verticalSpacer = QtGui.QSpacerItem(20, 40, QtGui.QSizePolicy.Minimum, QtGui.QSizePolicy.Expanding)

		loadLessonLayout = QtGui.QGridLayout()
		loadLessonLayout.addWidget(loadFromFileButton, 0, 0)
		loadLessonLayout.addWidget(loadFromWrtsButton, 0, 1)
		loadLessonLayout.addItem(verticalSpacer, 1, 0, 1, 2)

		loadLessonGroupBox = QtGui.QGroupBox("Load lesson:")
		loadLessonGroupBox.setLayout(loadLessonLayout)

		openLayout = QtGui.QVBoxLayout()
		openLayout.addWidget(createLessonGroupBox)
		openLayout.addWidget(loadLessonGroupBox)

		openWidget= QtGui.QWidget(self)
		openWidget.setLayout(openLayout)

		recentlyOpenedListView = QtGui.QListView()
		recentlyOpenedListView.setModel(QtGui.QStringListModel([
			"French (words)",
			"Europe (topo)",
			"Exam German (text)"
		], self))

		recentlyOpenedLayout = QtGui.QVBoxLayout()
		recentlyOpenedLayout.addWidget(recentlyOpenedListView)

		recentlyOpenedGridBox = QtGui.QGroupBox("Recently opened:")
		recentlyOpenedGridBox.setLayout(recentlyOpenedLayout)

		splitter = QtGui.QSplitter(self)
		splitter.addWidget(openWidget)
		splitter.addWidget(recentlyOpenedGridBox)

		layout = QtGui.QVBoxLayout(self)
		layout.addWidget(splitter)

		self.setLayout(layout)

class OpenTeacher(QtGui.QMainWindow):
	def __init__(self, parent=None):
		super(self.__class__, self).__init__(parent)

		self.resize(640, 480)

		self.indexes = []

		#tabWidget
		self.tabWidget = QtGui.QTabWidget(self)
		self.tabWidget.addTab(StartWidget(self), "+")
		self.tabWidget.setDocumentMode(True)

		self.setCentralWidget(self.tabWidget)

		self.addTab("French (words)")
		self.addTab("Europe (topo)")

		fileMenu = self.menuBar().addMenu("File")
		editMenu = self.menuBar().addMenu("Edit")
		helpMenu = self.menuBar().addMenu("Help")

		self.setWindowTitle("OpenTeacher 3.x")

	def addTab(self, text):
		position = self.tabWidget.count() -1 # because of +-button
		i = self.tabWidget.insertTab(position, LessonTabWidget(self), text)
		closeButton = CloseButton(self.tabWidget)
		self.indexes.append(closeButton)
		self.tabWidget.tabBar().setTabButton(i, QtGui.QTabBar.RightSide, closeButton)
		closeButton.clicked.connect(self.closeTab)

	def closeTab(self):
		closeButton = self.sender()
		i = self.indexes.index(closeButton) #always -1 because of +-button
		self.tabWidget.removeTab(i)
		del self.indexes[i]

if __name__ == "__main__":
	app = QtGui.QApplication(sys.argv)
	widget = OpenTeacher()
	widget.show()
	app.exec_()