forked from FOSSEE/Chemical-Simulator-GUI
/
Graphics.py
579 lines (500 loc) · 24.2 KB
/
Graphics.py
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from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
import PyQt5.QtGui as QtGui
import PyQt5.QtCore as QtCore
import PyQt5.QtWidgets as QtWidgets
from DockWidgets.DockWidget import *
from DockWidgets.DockWidgetMaterialStream import *
from DockWidgets.DockWidgetDistillationColumn import *
from DockWidgets.DockWidgetShortcutColumn import *
from DockWidgets.DockWidgetMixer import *
from DockWidgets.DockWidgetSplitter import *
from DockWidgets.DockWidgetFlash import *
from DockWidgets.DockWidgetCompoundSeparator import *
from DockWidgets.DockWidgetCompressorExpander import *
from Container import *
from Streams import *
from UnitOperations import *
from ComponentSelector import *
class Graphics(QDialog, QtWidgets.QGraphicsItem):
def __init__(self, unit_operations, graphicsView):
QDialog.__init__(self)
QtWidgets.QGraphicsItem.__init__(self)
self.scene = QGraphicsScene()
self.scene.setItemIndexMethod(QGraphicsScene.BspTreeIndex)
self.graphicsView = graphicsView
self.pos = None
self.unit_operations = unit_operations
def get_scene(self):
return self.scene
def get_component_selector(self):
return ComponentSelector(self)
def create_node_item(self,unit_operation, container):
return NodeItem(unit_operation, container, self.graphicsView)
def load_canvas(self, obj, container):
stm = ['MaterialStream','EngStm']
compounds = obj[-1]
obj.pop()
ComponentSelector.set_compounds(compounds)
for i in obj:
if(i in self.unit_operations):
pass
else:
self.unit_operations.append(i)
print(self.unit_operations)
new_box = self.create_node_item(i, container)
new_box.setPos(i.pos.toPoint().x(), i.pos.toPoint().y())
self.scene.addItem(new_box)
for i in obj:
if i.type == "MaterialStream":
print(eval(i.type))
elif i.type not in stm:
ip = i.input_stms
op = i.output_stms
for j in ip:
pointA = NodeItem.get_instances(j.name)
pointB = NodeItem.get_instances(i.name)
rect = pointA.output[0].boundingRect()
pointAA = QtCore.QPointF(rect.x() + rect.width()/2, rect.y() + rect.height()/2)
pointAA = pointA.output[0].mapToScene(pointAA)
rectB = pointB.input[0].boundingRect()
pointBB = QtCore.QPointF(rectB.x() + rectB.width()/2, rectB.y() + rectB.height()/2)
pointBB = pointB.input[0].mapToScene(pointBB)
self.new_line = NodeLine(pointAA, pointBB, 'in')
self.new_line.source = pointA.output[0]
self.new_line.target = pointB.input[0]
pointA.output[0].out_lines.append(self.new_line)
pointB.input[0].in_lines.append(self.new_line)
pointA.output[0].other_line = self.new_line
pointB.input[0].other_line = self.new_line
self.scene.addItem(self.new_line)
self.new_line.updatePath()
for k in op:
pointA = NodeItem.get_instances(i.name)
pointB = NodeItem.get_instances(k.name)
rect = pointA.output[0].boundingRect()
pointAA = QtCore.QPointF(rect.x() + rect.width()/2, rect.y() + rect.height()/2)
pointAA = pointA.output[0].mapToScene(pointAA)
rectB = pointB.input[0].boundingRect()
pointBB = QtCore.QPointF(rectB.x() + rectB.width()/2, rectB.y() + rectB.height()/2)
pointBB = pointB.input[0].mapToScene(pointBB)
self.new_line = NodeLine(pointAA, pointBB, 'out')
self.new_line.source = pointA.output[0]
self.new_line.target = pointB.input[0]
pointA.output[0].out_lines.append(self.new_line)
pointB.input[0].in_lines.append(self.new_line)
pointA.output[0].other_line = self.new_line
pointB.input[0].other_line = self.new_line
self.scene.addItem(self.new_line)
self.new_line.updatePath()
class NodeLine(QtWidgets.QGraphicsPathItem):
def __init__(self, pointA, pointB , socket):
super(NodeLine, self).__init__()
self._pointA = pointA
self._pointB = pointB
self.socket = socket
self._source = None
self._target = None
self.setZValue(-1)
self.setBrush(QtGui.QColor(0,70,70,120))
self.pen = QtGui.QPen()
self.pen.setStyle(QtCore.Qt.SolidLine)
self.pen.setWidth(2)
self.pen.setColor(QtGui.QColor(0,70,70,220))
self.setPen(self.pen)
def updatePath(self):
if (self._pointB.x() - self._pointA.x()) < 30:
path = QtGui.QPainterPath()
midptx = (self.pointA.x() + 13)
ctrl1_1 = QtCore.QPointF(self.pointA.x(), self.pointA.y())
ctrl2_1 = QtCore.QPointF(self.pointA.x(), self.pointA.y())
pt1 = QtCore.QPointF(midptx , self.pointA.y())
path.moveTo(pt1)
path.cubicTo(ctrl1_1, ctrl2_1, pt1)
if abs(self.pointB.x()-midptx) > 150:
ctrl1_2 = QtCore.QPointF(midptx, self.pointA.y())
ctrl2_2 = QtCore.QPointF(midptx, self.pointA.y())
pt2 = QtCore.QPointF(midptx , self.pointA.y()+100)
path.cubicTo(ctrl1_2, ctrl2_2, pt2)
path.moveTo(pt2)
ctrl1_3 = QtCore.QPointF(midptx, self.pointA.y()+100)
ctrl2_3 = QtCore.QPointF(midptx, self.pointA.y()+100)
pt3 = QtCore.QPointF(self.pointB.x()-13, self.pointA.y()+100)
path.cubicTo(ctrl1_3, ctrl2_3, pt3)
path.moveTo(pt3)
ctrl1_4 = QtCore.QPointF(self.pointB.x()-13, self.pointA.y()+100)
ctrl2_4 = QtCore.QPointF(self.pointB.x()-13, self.pointA.y()+100)
pt4 = QtCore.QPointF(self.pointB.x()-13, self.pointB.y())
path.cubicTo(ctrl1_4, ctrl2_4, pt4)
path.moveTo(pt4)
ctrl1_5 = QtCore.QPointF(self.pointB.x()-13, self.pointB.y())
ctrl2_5 = QtCore.QPointF(self.pointB.x()-13, self.pointB.y())
pt5 = QtCore.QPointF(self.pointB.x(), self.pointB.y())
path.cubicTo(ctrl1_5, ctrl2_5, pt5)
path.moveTo(pt5)
self.setPath(path)
return
else:
ctrl1_2 = QtCore.QPointF(midptx, self.pointA.y())
ctrl2_2 = QtCore.QPointF(midptx, self.pointA.y())
pt2 = QtCore.QPointF(midptx , max(self.pointB.y(), self.pointA.y())-(abs(self.pointA.y()-self.pointB.y())/2))
path.cubicTo(ctrl1_2, ctrl2_2, pt2)
path.moveTo(pt2)
ctrl1_3 = QtCore.QPointF(midptx, max(self.pointB.y(), self.pointA.y())-(abs(self.pointA.y()-self.pointB.y())/2))
ctrl2_3 = QtCore.QPointF(midptx, max(self.pointB.y(), self.pointA.y())-(abs(self.pointA.y()-self.pointB.y())/2))
pt3 = QtCore.QPointF(self.pointB.x()-13, max(self.pointB.y(), self.pointA.y())-(abs(self.pointA.y()-self.pointB.y())/2))
path.cubicTo(ctrl1_3, ctrl2_3, pt3)
path.moveTo(pt3)
ctrl1_4 = QtCore.QPointF(self.pointB.x()-13, max(self.pointB.y(), self.pointA.y())-(abs(self.pointA.y()-self.pointB.y())/2))
ctrl2_4 = QtCore.QPointF(self.pointB.x()-13, max(self.pointB.y(), self.pointA.y())-(abs(self.pointA.y()-self.pointB.y())/2))
pt4 = QtCore.QPointF(self.pointB.x()-13, self.pointB.y())
path.cubicTo(ctrl1_4, ctrl2_4, pt4)
path.moveTo(pt4)
ctrl1_5 = QtCore.QPointF(self.pointB.x()-13, self.pointB.y())
ctrl2_5 = QtCore.QPointF(self.pointB.x()-13, self.pointB.y())
pt5 = QtCore.QPointF(self.pointB.x(), self.pointB.y())
path.cubicTo(ctrl1_5, ctrl2_5, pt5)
path.moveTo(pt5)
self.setPath(path)
return
path = QtGui.QPainterPath()
path.moveTo(self.pointA)
midptx = 0.5*(self.pointA.x() + self.pointB.x())
ctrl1_1 = QtCore.QPointF(self.pointA.x(), self.pointA.y())
ctrl2_1 = QtCore.QPointF(self.pointA.x(), self.pointA.y())
pt1 = QtCore.QPointF(midptx , self.pointA.y())
path.cubicTo(ctrl1_1, ctrl2_1, pt1)
path.moveTo(pt1)
ctrl1_2 = QtCore.QPointF(midptx, self.pointA.y())
ctrl2_2 = QtCore.QPointF(midptx, self.pointA.y())
pt2 = QtCore.QPointF(midptx , self.pointB.y())
path.cubicTo(ctrl1_2, ctrl2_2, pt2)
path.moveTo(pt2)
ctrl1_3 = QtCore.QPointF(midptx, self.pointB.y())
ctrl2_3 = QtCore.QPointF(midptx, self.pointB.y())
path.cubicTo(ctrl1_3, ctrl2_3, self.pointB)
path.moveTo(self.pointB)
self.setPath(path)
def paint(self, painter, option, widget):
painter.setPen(self.pen)
painter.drawPath(self.path())
@property
def pointA(self):
return self._pointA
@pointA.setter
def pointA(self, point):
self._pointA = point
self.updatePath()
@property
def pointB(self):
return self._pointB
@pointB.setter
def pointB(self, point):
self._pointB = point
self.updatePath()
@property
def source(self):
return self._source
@source.setter
def source(self, widget):
self._source = widget
@property
def target(self):
return self._target
@target.setter
def target(self, widget):
self._target = widget
def __delete__(self,instance):
del self._source
del self._target
del self._pointA
del self._pointB
class NodeSocket(QtWidgets.QGraphicsItem):
def __init__(self, rect, parent, socketType):
super(NodeSocket, self).__init__(parent)
self.rect = rect
self.type = socketType
self.parent=parent
self.setAcceptHoverEvents(True)
self.new_line=None
self.other_line=None
# Brush
self.brush = QtGui.QBrush()
self.brush.setStyle(QtCore.Qt.SolidPattern)
self.brush.setColor(QtGui.QColor(220,220,220,220))
# Pen
self.pen = QtGui.QPen()
self.pen.setStyle(QtCore.Qt.SolidLine)
self.pen.setWidth(1)
self.pen.setColor(QtGui.QColor(0,70,70,255))
# Lines
self.out_lines = []
self.in_lines = []
def shape(self):
path = QtGui.QPainterPath()
path.addEllipse(self.boundingRect())
return path
def boundingRect(self):
return QtCore.QRectF(self.rect)
def paint(self, painter, option, widget):
painter.setBrush(self.brush)
painter.setPen(self.pen)
painter.drawEllipse(self.rect)
def mousePressEvent(self, event):
cursor = QCursor( Qt.PointingHandCursor )
QApplication.instance().setOverrideCursor(cursor)
if self.type == 'op':
rect = self.boundingRect()
pointA = QtCore.QPointF(rect.x() + rect.width()/2, rect.y() + rect.height()/2)
pointA = self.mapToScene(pointA)
pointB = self.mapToScene(event.pos())
self.new_line = NodeLine(pointA, pointB ,'op')
self.out_lines.append(self.new_line)
self.scene().addItem(self.new_line)
elif self.type == 'in':
rect = self.boundingRect()
pointA = self.mapToScene(event.pos())
pointB = QtCore.QPointF(rect.x() + rect.width()/2, rect.y() + rect.height()/2)
pointB = self.mapToScene(pointB)
self.new_line = NodeLine(pointA, pointB, 'in')
self.in_lines.append(self.new_line)
self.scene().addItem(self.new_line)
else:
super(NodeSocket, self).mousePressEvent(event)
def mouseMoveEvent(self, event):
if self.type == 'op':
pointB = self.mapToScene(event.pos())
self.new_line.pointB = pointB
if self.other_line:
self.other_line.pointB=pointB
elif self.type == 'in':
pointA = self.mapToScene(event.pos())
self.new_line.pointA = pointA
if self.other_line:
self.other_line.pointA=pointA
else:
super(NodeSocket, self).mouseMoveEvent(event)
def mouseReleaseEvent(self, event):
cursor = QCursor( Qt.ArrowCursor )
QApplication.instance().setOverrideCursor(cursor)
item = self.scene().itemAt(event.scenePos().toPoint(),QtGui.QTransform())
stm = ['MaterialStream','EngStm']
item.other_line=self.new_line
if (self.type == 'op') and (item.type == 'in'):
self.new_line.source = self
self.new_line.target = item
item.in_lines.append(self.new_line)
self.new_line.pointB = item.get_center()
if self.new_line.source.parent.obj.type not in stm:
self.new_line.source.parent.obj.add_connection(0,self.new_line.target.parent.obj)
if self.new_line.target.parent.obj.type not in stm:
self.new_line.target.parent.obj.add_connection(1,self.new_line.source.parent.obj) # Input stream if flag is 1
elif (self.type =='in') and (item.type == 'op'):
self.new_line.source = item
self.new_line.target = self
item.out_lines.append(self.new_line)
self.new_line.pointA = item.get_center()
if self.new_line.source.parent.obj.type not in stm:
self.new_line.source.parent.obj.add_connection(0,self.new_line.target.parent.obj)
if self.new_line.target.parent.obj.type not in stm:
self.new_line.target.parent.obj.add_connection(1,self.new_line.source.parent.obj)
else:
self.scene().removeItem(self.new_line)
if(self.new_line in self.in_lines):
self.in_lines.remove(self.new_line)
if(self.new_line in self.out_lines):
self.out_lines.remove(self.new_line)
del self.new_line
super(NodeSocket, self).mouseReleaseEvent(event)
try:
data = Container.get_last_list('Undo')
comp_selected = data[-1]
data.remove(comp_selected)
for i in range(len(data)):
if data[i].name == self.new_line.source.parent.obj.name:
data[i] = self.new_line.source.parent.obj
elif data[i].name == self.new_line.target.parent.obj.name:
data[i] = self.new_line.target.parent.obj
data.append(comp_selected)
Container.push('Undo', data)
except Exception as e:
print(e)
def get_center(self):
rect = self.boundingRect()
center = QtCore.QPointF(rect.x() + rect.width()/2, rect.y() + rect.height()/2)
center = self.mapToScene(center)
return center
def hoverEnterEvent(self, event):
cursor = QCursor( Qt.CrossCursor )
QApplication.instance().setOverrideCursor(cursor)
def hoverLeaveEvent(self, event):
cursor = QCursor( Qt.ArrowCursor )
QApplication.instance().setOverrideCursor(cursor)
# all created node items will be put inside this list
# it is used for recreating the node lines by returning the node item object based on unit operation object's name
lst = []
dock_widget_lst = []
stack = []
class NodeItem(QtWidgets.QGraphicsItem):
@staticmethod
def get_instances(namee):
for i in lst:
if i.name == namee:
return i
@staticmethod
def get_dock_widget():
return dock_widget_lst
def __init__(self,unit_operation, container, graphicsView):
l = ['Splitter','Mixer', 'DistillationColumn', 'Flash', 'CompoundSeparator', 'ShortcutColumn']
stm = ['MaterialStream', 'EnergyStream']
super(NodeItem, self).__init__()
self.obj = unit_operation
self.container = container
self.graphicsView = graphicsView
self.name = self.obj.name
self.type = self.obj.type
if (self.obj.modes_list):
default_tooltip = f"{self.name}\n\n"
default_tooltip_dict = self.obj.param_getter(self.obj.modes_list[0])
for i, j in default_tooltip_dict.items():
if j is not None:
default_tooltip = default_tooltip + f" {i} : {j}\n"
self.setToolTip(default_tooltip)
self.nin = self.obj.no_of_inputs
self.nop = self.obj.no_of_outputs
if self.obj.type == 'Mixer':
text, ok = QInputDialog.getText(self.container.graphicsView, 'Mixer', 'Enter number of input:')
if ok and text:
self.nin = int(text)
self.obj.no_of_inputs = self.nin
self.obj.variables['NI']['value'] = self.nin
elif self.obj.type == 'Splitter':
text, ok = QInputDialog.getText(self.container.graphicsView, 'Splitter', 'Enter number of output:')
if ok and text:
self.nop = int(text)
self.obj.no_of_outputs = self.nop
self.obj.variables['No']['value'] = self.nop
elif self.obj.type == 'DistillationColumn':
text, ok = QInputDialog.getText(self.container.graphicsView, 'DistillationColumn', 'Enter number of input:')
if ok and text:
self.nin = int(text)
self.obj.no_of_inputs = self.nin
self.obj.variables['Ni']['value'] = self.nin
self.dock_widget = None
lst.append(self)
if self.obj.type in l:
self.dock_widget = eval("DockWidget"+self.obj.type)(self.obj.name,self.obj.type,self.obj,self.container)
elif self.obj.type in stm:
self.dock_widget = eval("DockWidget"+self.obj.type)(self.obj.name,self.obj.type,self.obj,self.container)
elif self.obj.type == "AdiabaticCompressor" or self.obj.type == "AdiabaticExpander":
self.dock_widget = eval("DockWidgetCompressorExpander")(self.obj.name,self.obj.type,self.obj,self.container)
else:
self.dock_widget = DockWidget(self.obj.name,self.obj.type,self.obj,self.container)
dock_widget_lst.append(self.dock_widget)
self.main_window= findMainWindow(self)
self.dock_widget.setFixedWidth(360)
self.dock_widget.setFixedHeight(640)
self.dock_widget.DockWidgetFeature(QDockWidget.AllDockWidgetFeatures)
self.main_window.addDockWidget(Qt.LeftDockWidgetArea, self.dock_widget)
self.dock_widget.hide()
self.pic=QtGui.QPixmap("Icons/"+self.type+".png")
self.rect = QtCore.QRect(0,0,self.pic.width(),self.pic.height())
self.text = QGraphicsTextItem(self)
f = QFont()
f.setPointSize(8)
self.text.setFont(f)
self.text.setDefaultTextColor(QtGui.QColor(0,70,70,220))
self.text.setParentItem(self)
self.text.setPos(self.rect.width()-(self.rect.width()*0.9), self.rect.height())
self.text.setPlainText(self.name)
self.setFlag(QtWidgets.QGraphicsPixmapItem.ItemIsMovable)
self.setFlag(QtWidgets.QGraphicsPixmapItem.ItemIsSelectable)
# Brush
self.brush = QtGui.QBrush()
self.brush.setStyle(QtCore.Qt.SolidPattern)
self.brush.setColor(QtGui.QColor(80,0,90,255))
# Pen
self.pen = QtGui.QPen()
self.pen.setStyle(QtCore.Qt.SolidLine)
self.pen.setWidth(1)
self.pen.setColor(QtGui.QColor(20,20,20,255))
self.sel_pen = QtGui.QPen()
self.sel_pen.setStyle(QtCore.Qt.SolidLine)
self.sel_pen.setWidth(1)
self.sel_pen.setColor(QtGui.QColor(220,220,220,255))
# initializing the node sockets
self.input , self.output = self.initialize_sockets(self.type)
def shape(self):
path = QtGui.QPainterPath()
path.addRect(self.boundingRect())
return path
def boundingRect(self):
return QtCore.QRectF(self.rect)
def paint(self, painter, option, widget):
if self.isSelected():
painter.setPen(self.sel_pen)
painter.drawRect(QtCore.QRectF(self.rect))
else:
painter.setPen(self.pen)
painter.drawPixmap(self.rect,self.pic)
def initialize_sockets(self,type):
if(self.type=="Flash" or self.type=="CompoundSeparator"):
input = [NodeSocket(QtCore.QRect(5,(self.rect.height()*x/(self.nin+1)-2),4,4), self, 'in') for x in range(1,self.nin+1) ]
output = [NodeSocket(QtCore.QRect(self.rect.width()-9,(self.rect.height()*x*1/(self.nop+1)),4,4), self, 'op') for x in range(1,self.nop+1)]
return input,output
elif(self.type=="AdiabaticCompressor" or self.type=="AdiabaticExpander" or self.type =="Mixer" or self.type =="Splitter" or self.type =="Valve" ):
input = [NodeSocket(QtCore.QRect(-2.5,(self.rect.height()*x/(self.nin+1))-2,4,4), self, 'in') for x in range(1,self.nin+1) ]
output = [NodeSocket(QtCore.QRect(self.rect.width()-2.5,(self.rect.height()*x/(self.nop+1))-2,4,4), self, 'op') for x in range(1,self.nop+1)]
return input,output
elif(self.type=="Cooler" or self.type=="Heater"):
input = [NodeSocket(QtCore.QRect(3.5,(self.rect.height()*x/(self.nin+1))-2,4,4), self, 'in') for x in range(1,self.nin+1) ]
output = [NodeSocket(QtCore.QRect(self.rect.width()-8.0,(self.rect.height()*x/(self.nop+1))-2,4,4), self, 'op') for x in range(1,self.nop+1)]
return input,output
elif(self.type=="Pump"):
input = [NodeSocket(QtCore.QRect(-2.5,(self.rect.height()*x/(self.nin+1))-7, 4,4), self, 'in') for x in range(1,self.nin+1) ]
output = [NodeSocket(QtCore.QRect(self.rect.width()-2.5,-1.5,4,4), self, 'op') for x in range(1,self.nop+1)]
return input,output
elif(self.type=="DistillationColumn" or self.type=="ShortcutColumn"):
input = [NodeSocket(QtCore.QRect(-2.5,(self.rect.height()*x/(self.nin+1)),5,5), self, 'in') for x in range(1,self.nin+1) ]
output = [NodeSocket(QtCore.QRect(self.rect.width()-5.5,(self.rect.height()*1.44*x/(self.nop+1))-55,5,5), self, 'op') for x in range(1,self.nop+1)]
return input,output
elif(self.type=="MaterialStream"):
input = [NodeSocket(QtCore.QRect(-2.5,(self.rect.height()*x/(self.nin+1)-2),4,4), self, 'in') for x in range(1,self.nin+1) ]
output = [NodeSocket(QtCore.QRect(self.rect.width()-2.5,(self.rect.height()*x/(self.nin+1)-2),4,4), self, 'op') for x in range(1,self.nop+1)]
return input,output
def mouseMoveEvent(self, event):
super(NodeItem, self).mouseMoveEvent(event)
for op in self.output:
for line in op.out_lines:
line.pointA = line.source.get_center()
line.pointB = line.target.get_center()
for ip in self.input:
for line in ip.in_lines:
line.pointA = line.source.get_center()
line.pointB = line.target.get_center()
self.pos = event.scenePos()
self.obj.set_pos(self.pos)
def mouseDoubleClickEvent(self, event):
self.graphicsView.setInteractive(False)
if len(stack):
stack[-1].hide()
self.dock_widget.show()
stack.append(self.dock_widget)
self.graphicsView.setInteractive(True)
def update_tooltip(self):
default_tooltip = f"{self.name}\n\n"
default_tooltip_dict = self.obj.param_getter(self.obj.modes_list[0])
for i, j in default_tooltip_dict.items():
if j is not None:
default_tooltip = default_tooltip + f" {i} : {j}\n"
self.setToolTip(default_tooltip)
def findMainWindow(self):
'''
Global function to find the (open) QMainWindow in application
'''
app = QApplication.instance()
for widget in app.topLevelWidgets():
if isinstance(widget, QMainWindow):
return widget
return None