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from PyQt5.QtCore import Qt
from PyQt5.QtGui import QKeySequence, QColor, QPixmap, QIcon
from PyQt5.QtWidgets import (QApplication, QWidget, QMenu, QListWidget,
QListWidgetItem, QAbstractItemView, QVBoxLayout, QAction, QColorDialog)
from defconQt import icons_db
from defconQt.glyphView import AddLayerDialog
class LayerSetList(QListWidget):
def __init__(self, parent=None, *args, **kwargs):
super().__init__(parent, *args, **kwargs)
app = QApplication.instance()
self._layerSet = app.currentFont().layers
self.setDragDropMode(QAbstractItemView.InternalMove)
model = self.model()
model.rowsMoved.connect(self._reordered)
self.itemChanged.connect(self._itemChanged)
self.setContextMenuPolicy(Qt.ActionsContextMenu)
action = QAction("Add Layer…", self)
action.setShortcuts(QKeySequence.New)
action.triggered.connect(self._addLayer)
self.addAction(action)
action = QAction("Change &Name", self)
action.setShortcuts(QKeySequence('n'))
action.triggered.connect(lambda : self.editItem(self.currentItem()))
self.addAction(action)
action = QAction("Change &Color", self)
action.setShortcuts(QKeySequence('c'))
action.triggered.connect(self._changeColor)
self.addAction(action)
action = QAction("Reset Color to &Default", self)
action.setShortcuts(QKeySequence('d'))
action.triggered.connect(self._resetColor)
self.addAction(action)
action = QAction("Delete", self)
action.setShortcuts(QKeySequence.Delete)
action.triggered.connect(self._deleteLayer)
self.addAction(action)
self._layerSet.addObserver(self, '_update', 'LayerSet.Changed')
self._update()
app.currentFontChanged.connect(self.updateFont)
def _update(self, *args):
index = self.currentRow()
self.clear()
for i, layer in enumerate(self._layerSet):
item = self._makeItem(layer)
self.addItem(item)
if i == index:
self.setCurrentItem(item)
def _makeItem(self, layer):
isDefault = layer is self._layerSet.defaultLayer
name = layer.name
color = layer.color
item = QListWidgetItem()
item.setText(name)
if color:
pixmap = QPixmap(100, 100)
# change color
pixmap.fill(QColor.fromRgbF(*color))
icon = QIcon(pixmap)
else:
icon = QIcon(":/resources/defaultColor.svg")
item.setIcon(icon)
if isDefault:
font = item.font()
font.setBold(True)
item.setFont(font)
item.setFlags(item.flags() | Qt.ItemIsEditable)
return item;
def _getCurrentLayer(self):
item = self.currentItem()
if not item:
return
name = item.text()
return self._layerSet[name] if name in self._layerSet else None
def _deleteLayer(self):
layer = self._getCurrentLayer()
if not layer:
return
if layer is self._layerSet.defaultLayer:
# because I think we can't handle a font without a default layer
# TODO: try this
return
del self._layerSet[layer.name];
def _reordered(self, *args):
# get a new layer order
newOrder = [self.item(index).text() for index in range(self.count())]
self._layerSet.layerOrder = newOrder
def _itemChanged(self, item):
index = self.indexFromItem(item).row()
layerName = self._layerSet.layerOrder[index]
self._layerSet[layerName].name = item.text()
def _addLayer(self):
newLayerName, ok = AddLayerDialog.getNewLayerName(self)
if ok:
# this should cause self._layerSetLayerAdded to be executed
self._layerSet.newLayer(newLayerName)
def _changeColor(self):
layer = self._getCurrentLayer()
if not layer:
return
startColor = layer.color and QColor.fromRgbF(*layer.color) or QColor('limegreen')
qcolor = QColorDialog.getColor(startColor, self, options=QColorDialog.ShowAlphaChannel)
if not qcolor.isValid():
# cancelled
return
layer.color = qcolor.getRgbF()
def _resetColor(self):
layer = self._getCurrentLayer()
if not layer:
return
layer.color = None
def updateFont(self):
if self._layerSet is not None:
self._layerSet.removeObserver(self, 'LayerSet.Changed')
currentFont = QApplication.instance().currentFont()
self._layerSet = currentFont.layers
self._layerSet.addObserver(self, '_update', 'LayerSet.Changed')
self._update()
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