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# -*- coding: UTF-8 -*-

from common import *
from editorui import *


class KPLayerList(QtGui.QWidget):
	def __init__(self):
		QtGui.QWidget.__init__(self)

		self.layout = QtGui.QVBoxLayout()
		self.layout.setSpacing(0)

		self.model = KP.map.layerModel

		self.listView = QtGui.QListView()
		self.listView.setModel(self.model)
		self.listView.selectionModel().currentRowChanged.connect(self.handleRowChanged)
		self.layout.addWidget(self.listView)

		self.toolbar = QtGui.QToolBar()
		self.layout.addWidget(self.toolbar)

		self.setupToolbar(self.toolbar)

		self.setLayout(self.layout)


	def setupToolbar(self, tb):
		tb.addAction(QtGui.QIcon(), 'Add', self.addLayer)
		tb.addAction(QtGui.QIcon(), 'Remove', self.removeLayer)
		tb.addAction(QtGui.QIcon(), 'Move Up', self.moveUp)
		tb.addAction(QtGui.QIcon(), 'Move Down', self.moveDown)


	def selectedLayerIndex(self):
		return self.listView.selectionModel().currentIndex().row()
	def selectedLayer(self):
		return KP.map.layers[self.listView.selectionModel().currentIndex().row()]

	selectedLayerChanged = QtCore.pyqtSignal(KPLayer)

	@QtCore.pyqtSlot(QtCore.QModelIndex, QtCore.QModelIndex)
	def handleRowChanged(self, current, previous):
		self.selectedLayerChanged.emit(KP.map.layers[current.row()])


	def addLayer(self):
		KP.map.appendLayer(KP.map.createNewLayer())

	def removeLayer(self):
		KP.map.removeLayer(self.selectedLayer())

	def moveUp(self):
		index = self.selectedLayerIndex()
		KP.map.moveLayer(index, index - 1)

	def moveDown(self):
		index = self.selectedLayerIndex()
		KP.map.moveLayer(index, index + 2)






class KPObjectSelector(QtGui.QWidget):
	def __init__(self):
		"""Initialises the widget. Remember to call setModel() on it with a KPGroupModel
		whenever the layer changes."""

		QtGui.QWidget.__init__(self)

		font = QtGui.QFont()
		font.setPixelSize(22)
		font.setBold(True)

		icon = QtGui.QIcon('icons/downArrow.png')

		self.sorterButton = QtGui.QToolButton()

		string = QtCore.QString(QtCore.QChar(0x25BE))
		string.append(' All Groups')

		self.sorterButton.setText(string)
		self.sorterButton.setFont(font)
		self.sorterButton.setPopupMode(2)
		self.sorterButton.setSizePolicy(QtGui.QSizePolicy.Expanding, QtGui.QSizePolicy.Expanding)

		self.sorterMenu = QtGui.QMenu()
		action = self.sorterMenu.addAction("test 1")
		self.sorterButton.setMenu(self.sorterMenu)


		self.layout = QtGui.QVBoxLayout()
		self.layout.setSpacing(0)

		self.toolbar = QtGui.QToolBar()
		self.toolbar.setFixedHeight(28)
		self.toolbar.addWidget(self.sorterButton)
		self.layout.addWidget(self.toolbar)

		self.listView = QtGui.QListView()
		self.listView.setFlow(QtGui.QListView.LeftToRight)
		self.listView.setLayoutMode(QtGui.QListView.SinglePass)
		self.listView.setMovement(QtGui.QListView.Static)
		self.listView.setResizeMode(QtGui.QListView.Adjust)
		self.listView.setWrapping(True)
		self.layout.addWidget(self.listView)

		self.setLayout(self.layout)


		# Borrowed the signals and junk from Reggie, figure we'll need em'
		self.listView.clicked.connect(self.handleObjReplace)
		self.sorterMenu.aboutToShow.connect(self.fixUpMenuSize)
		self.sorterMenu.triggered.connect(self.toggleTopLevel)


	def fixUpMenuSize(self):
		self.sorterMenu.setFixedWidth(self.sorterButton.width())
	

	def currentSelectedObject(self):
		"""Returns the currently selected object reference, for painting purposes."""

		index = self.currentIndex().row()
		object = self.model().groupItem().getItem(index)

		return object


	def setModel(self, model):
		"""Sets the model and the menu sorting list"""

		self.model = model
		self.listView.setModel(model)

		model.view = self.listView

		menuList = model.groupItem().getGroupList()

		string = QtCore.QString(QtCore.QChar(0x25BE))
		string.append(' All Groups')

		self.sorterButton.setText(string)
		self.sorterMenu.clear()

		for item in menuList:
			actionMan = self.sorterMenu.addAction(item[0])

			actionMan.setData((item[1], item[2]))

		# a Quick Fix
		self.listView.setRowHidden(0, True)


	def toggleTopLevel(self, action):
		"""Changes the top level group in the list view."""

		name = str(action.text()).strip()
		startRow = action.data().toPyObject()[0] + 1
		endRow = action.data().toPyObject()[1]

		for row in xrange(self.model.rowCount()):
			if (row < startRow) or (row > endRow):
				self.listView.setRowHidden(row, True)
			else:
				self.listView.setRowHidden(row, False)

		string = QtCore.QString(QtCore.QChar(0x25BE))
		string.append(' ' + name)

		self.sorterButton.setText(string)


	@QtCore.pyqtSlot(QtCore.QModelIndex, QtCore.QModelIndex)
	def currentChanged(self, current, previous):
		"""Throws a signal emitting the current object when changed"""
		i = current.row()
		object, depth = self.model.groupItem().getItem(i)

		self.objChanged.emit(i, object)


	def handleObjReplace(self, index):
		"""Throws a signal when the selected object is used as a replacement"""
		if QtGui.QApplication.keyboardModifiers() == QtCore.Qt.AltModifier:
			i = current.row()
			object, depth = self.model.groupItem().getItem(i)

			self.objReplaced.emit(i, object)

	objChanged = QtCore.pyqtSignal(int, KPTileObject)
	objReplaced = QtCore.pyqtSignal(int, KPTileObject)








class KPMainWindow(QtGui.QMainWindow):
	def __init__(self):
		QtGui.QMainWindow.__init__(self)

		self.scene = KPMapScene()

		self.editor = KPEditorWidget(self.scene)
		self.setCentralWidget(self.editor)

		self.setupMenuBar()

		self.setupDocks()


	def setupMenuBar(self):
		mb = self.menuBar()

		m = mb.addMenu('&File')
		# ...


	def setupDocks(self):
		self.layerList = KPLayerList()
		self.layerListDock = QtGui.QDockWidget('Layers')
		self.layerListDock.setWidget(self.layerList)

		self.layerList.selectedLayerChanged.connect(self.scene.setCurrentLayer)

		self.objectSelector = KPObjectSelector()
		self.updateObjectSelector()
		self.objectSelectorDock = QtGui.QDockWidget('Objects')
		self.objectSelectorDock.setWidget(self.objectSelector)


		self.addDockWidget(Qt.RightDockWidgetArea, self.layerListDock)
		self.addDockWidget(Qt.RightDockWidgetArea, self.objectSelectorDock)
	

	@QtCore.pyqtSlot()
	def updateObjectSelector(self):
		try:
			tileset = KPTileset.loadFromArc('/Users/Tempus/Dropbox/NEWERsmbw/Test3.arc')
		except IOError:
			tileset = KPTileset.loadFromArc('/home/me/Dropbox/NEWERsmbw/Test3.arc')
		self.objectSelector.setModel(tileset.getModel())