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from ost import gui
from ost import gfx
import os
import ost
from PyQt5 import QtCore, QtWidgets, QtGui
from .immutable_preset_info_handler import ImmutablePresetInfoHandler
from .preset_info_handler import PresetInfoHandler
class PresetListModel(QtCore.QAbstractListModel):
IMMUTABLE_PRESET_PATH = os.path.join(ost.GetSharedDataPath(),"scene",
"presets.xml")
MUTABLE_PRESET_PATH = "user_presets.xml"
dataChanged = QtCore.pyqtSignal(int, int, name="dataChanged")
def __init__(self, parent=None, *args):
QtCore.QAbstractListModel.__init__(self, parent, *args)
self.data_ = list()
#Info Handler
self.immutable_infoh_=ImmutablePresetInfoHandler(PresetListModel.IMMUTABLE_PRESET_PATH)
data_loc=str(QtCore.QStandardPaths.writableLocation(QtCore.QStandardPaths.DataLocation))
mutable_path=os.path.join(str(data_loc), 'config',
PresetListModel.MUTABLE_PRESET_PATH)
qdir=QtCore.QDir(data_loc)
if not qdir.exists():
qdir.mkpath("config")
self.infoh_=PresetInfoHandler(mutable_path)
self.LoadPresetsFromInfo()
def AddItem(self, preset, row, editable, save):
if self.NameIsValid(preset.GetName()):
icon = self.GetIcon(preset)
self.insertRow(row, QtCore.QModelIndex())
self.data_[row] = [preset, icon, editable]
model_index = self.createIndex(row,0)
index = self.index(row)
end_index = self.createIndex(self.rowCount(),0)
if save:
self.AddPresetToInfo(preset)
self.dataChanged.emit(model_index, end_index)
return True
return False
def IsEditable(self, row):
return self.data_[row][2]
def RemoveItem(self, row):
if self.IsEditable(row):
name = self.data_[row][0].GetName()
self.removeRow(row, QtCore.QModelIndex())
model_index = self.createIndex(row,0)
self.infoh_.RemovePreset(name)
self.dataChanged.emit(model_index, model_index)
return True
return False
def AddPresetToInfo(self,preset):
self.infoh_.StorePreset(preset)
def LoadPresetsFromInfo(self):
if self.immutable_infoh_:
presets = self.immutable_infoh_.GetPresets()
for k, v in presets.items():
self.AddItem(v, self.GetLastRow(), False, False)
presets = self.infoh_.GetPresets()
for k, v in presets.items():
self.AddItem(v, self.GetLastRow(), True, False)
def GetPreset(self, model_index):
if model_index.isValid():
return self.data_[model_index.row()][0]
def GetLastRow(self):
return self.rowCount()
#Helper
def GetIcon(self, preset):
pixmap = QtGui.QPixmap(64, 64)
pixmap.fill(QtCore.Qt.transparent)
return QtGui.QIcon(pixmap)
def NameIsValid(self, string):
if len(string)==0:
return False
for values in self.data_:
if string == values[0].GetName():
return False
return True
#Overwritten Methods
def rowCount(self, parent=QtCore.QModelIndex()):
return len(self.data_)
def data(self, index, role):
if index.isValid() and index.row()< self.rowCount():
data = self.data_[index.row()]
if role == QtCore.Qt.DisplayRole:
return QtCore.QVariant(data[0].GetName())
elif role == QtCore.Qt.DecorationRole:
return QtCore.QVariant(data[1])
return QtCore.QVariant()
def setData(self, index, value, role):
if index.isValid():
row = index.row()
if not self.data_[row]:
self.data_[row] = list()
if role == QtCore.Qt.EditRole and self.NameIsValid(value.toString()):
old_name = str(self.data_[row][0].GetName())
new_name = value.toString()
self.data_[row][0].SetName(str(new_name))
self.infoh_.RenamePreset(old_name,str(new_name))
self.dataChanged.emit(index, index)
return True
elif role == QtCore.Qt.DisplayRole:
self.data_[row][0].SetName(value.toString())
elif role == QtCore.Qt.DecorationRole:
self.dat_[row][1] = value.toPyObject()
return False
def flags(self, index):
if index.isValid():
flags = QtCore.QAbstractItemModel.flags(self,index)
if self.IsEditable(index.row()):
return flags | QtCore.Qt.ItemIsEditable
else:
return flags
return QtCore.Qt.ItemIsEnabled
def insertRow(self, position, index):
self.beginInsertRows(index, position, position)
self.data_.insert(position,list())
self.endInsertRows()
return True
def removeRow(self, position, index):
self.beginRemoveRows(index, position, position)
del self.data_[position]
self.endRemoveRows()
return True
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