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from PyQt6.QtWidgets import QGraphicsScene, QGraphicsView, QSizePolicy
from PyQt6 import uic, QtGui, QtCore
from PyQt6.QtCore import Qt, QRect, QEvent, QCoreApplication
import math
#https://forum.qt.io/topic/93327/how-can-i-use-qpainter-to-paint-on-qgraphicsview/5
#https://www.pythonguis.com/tutorials/pyqt6-bitmap-graphics/#qpainter
# to solve the fit problem: https://stackoverflow.com/questions/61886358/qgraphicsview-fitinview-not-working-as-expected
DaySelectedEvent = QEvent.registerEventType()
class CalQGraphicsView(QGraphicsView):
def __init__(self, scene):
super().__init__(None)
self.setScene(scene)
self.setMouseTracking(True) # Allow to keep track of mouse location in the scene
def resizeEvent(self, event):
self.fitInView(self.sceneRect(), Qt.AspectRatioMode.IgnoreAspectRatio)
class CalDrawerScene(QGraphicsScene):
def __init__(self, parent, env):
self.parent=parent
self.gridWidth=2
self.daysLabelBG="#dddddd"
self.eventsLabelBG="#36e364"
super().__init__(None)
self.showWeekends=True
self.daysRect=list()
self.eventsRect=list()
self.mouseOver=-1
self.env=env
self.calState=env.calState
self.daysNames=["Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday"]
self.pullState()
self.selection=self.today
def drawForeground(self, painter, rect):
origXF, origYF, widthF, heightF = rect.getRect()
origXI, origYI, widthI, heightI = (int(origXF),int(origYF),int(widthF),int(heightF))
self.defaultBrush=painter.brush()
self.daysRect.clear()
self.eventsRect.clear()
daysNamesH=self.drawDaysName(painter, origXI, origYI, widthI, heightI)
self.drawGrid(painter, origXI, origYI+daysNamesH, widthI, heightI-daysNamesH)
self.drawDaysLabel(painter)
self.drawEvents(painter)
def drawDaysName(self, painter, x, y, width, height):
# Init Pen
pen=QtGui.QPen()
pen.setWidth(self.gridWidth)
pen.setJoinStyle(Qt.PenJoinStyle.MiterJoin)
po=int(self.gridWidth/2) # Pen offset
painter.setPen(pen)
# Init Brush
painter.setBrush(Qt.BrushStyle.NoBrush)
# Setup dimensions
weekLength=7
font=painter.font()
metric=QtGui.QFontMetrics(font);
labelH=metric.boundingRect("".join(self.daysNames)).height()
margin=0
offsetY=int(labelH/2)+int(labelH/4)+margin
w=int((width-po*2)/weekLength)
h=int(labelH)
for i in range(0, 7):
labelW=metric.boundingRect(self.daysNames[i]).width()
offsetX=int(w/2-labelW/2)
# painter.drawText(x+offsetX+w*i,y+offsetY,self.daysNames[i])
painter.drawText(x+w*i,y,w,h,Qt.AlignmentFlag.AlignHCenter,self.daysNames[i])
rect=QRect(x+po+w*i,y+po,w,h) # Draw grid
painter.drawRect(rect)
return labelH
def drawGrid(self,painter, x, y, width, height):
# Init Pen
pen=QtGui.QPen()
pen.setWidth(self.gridWidth)
pen.setJoinStyle(Qt.PenJoinStyle.MiterJoin)
po=int(self.gridWidth/2) # Pen offset
painter.setPen(pen)
# Init Brush
brushHL=QtGui.QBrush()
brushHL.setColor(QtGui.QColor("#e5e5e5"))
brushHL.setStyle(Qt.BrushStyle.SolidPattern)
painter.setBrush(Qt.BrushStyle.NoBrush)
# Setup dimensions
weekLength=7
if not self.showWeekends:
weekLength=5
daysCount=weekLength*6
# brush=QtGui.QBrush()
# brush.setColor(QtGui.QColor("#0000FF"))
# brush.setStyle(Qt.BrushStyle.SolidPattern)
w=int((width-po*2)/weekLength)
h=int((height-po*2)/6)
row=0
col=0
self.daysRect.clear()
while row*weekLength+col<daysCount:
rect=QRect(x+po+w*col,y+po+row*h,w,h) # Draw grid
rectInside=QRect(rect.x()+po,rect.y()+po,rect.width()-po*2,rect.height()-po*2) # Area within grid (within stroke)
self.daysRect.append(rectInside) # Store this region for later drawing
# if col==0 and row == 0:
# painter.setBrush(brush)
# painter.setPen(Qt.PenStyle.NoPen)
# painter.drawRect(QRect(b.x(),b.y(),b.width(),b.height()))
# painter.setPen(self.gridPen)
# painter.setBrush(self.defaultBrush)
if row*weekLength+col == self.mouseOver:
painter.setBrush(brushHL)
painter.drawRect(rect)
painter.setBrush(Qt.BrushStyle.NoBrush)
else:
painter.drawRect(rect)
col+=1
if col==weekLength:
col=0
row+=1
def drawDaysLabel(self,painter):
# Init Pen
pen=QtGui.QPen()
pen.setWidth(self.gridWidth)
pen.setJoinStyle(Qt.PenJoinStyle.MiterJoin)
po=int(self.gridWidth/2) # Pen offset
# Init Brush
brush=QtGui.QBrush()
brush.setColor(QtGui.QColor(self.daysLabelBG))
brush.setStyle(Qt.BrushStyle.SolidPattern)
painter.setBrush(brush)
# Brush for today
brushToday=QtGui.QBrush()
brushToday.setColor(QtGui.QColor("#23a1fc"))
brushToday.setStyle(Qt.BrushStyle.SolidPattern)
# Init various things
days=self.calState.getMonthDays()
font=painter.font()
metric=QtGui.QFontMetrics(font);
labelH=metric.boundingRect("1234567890").height()
margin=0
offsetY=int(labelH/2)+int(labelH/4)+margin
today=self.calState.today()
# Draw labels
for i in range(0,len(self.daysRect)):
r=self.daysRect[i]
d=days[i]
dayLabel=str(d[2])
labelW=metric.boundingRect(dayLabel).width()
offsetX=int(r.width()/2-labelW/2)
painter.setPen(Qt.PenStyle.NoPen)
painter.drawRect(r.x(),r.y(),r.width(),labelH) # Remember r is within grid stroke
painter.setPen(pen)
# painter.drawText(r.x()+offsetX,r.y()+offsetY,dayLabel)
if d == today:
painter.setBrush(brushToday)
painter.setPen(Qt.PenStyle.NoPen)
painter.drawRect(r.x()+int(r.width()/4),r.y(),int(r.width()/2),labelH)
painter.setBrush(brush)
painter.setPen(pen)
painter.drawText(r,Qt.AlignmentFlag.AlignHCenter,dayLabel)
self.eventsRect.append(QRect(r.x(),r.y()+labelH+margin,r.width(),r.height()-(labelH+margin)))
def drawEvents(self,painter):
# Init Pen
pen=QtGui.QPen()
pen.setWidth(self.gridWidth)
pen.setJoinStyle(Qt.PenJoinStyle.MiterJoin)
po=int(self.gridWidth/2) # Pen offset
# Init Brush
brush=QtGui.QBrush()
brush.setColor(QtGui.QColor(self.eventsLabelBG))
brush.setStyle(Qt.BrushStyle.SolidPattern)
painter.setBrush(brush)
# Init various things
days=self.calState.getMonthDays()
font=painter.font()
metric=QtGui.QFontMetrics(font);
labelH=metric.height()
margin=0
colMark=5
colMarkPadding=2
offsetY=int(labelH/2)+int(labelH/4)+margin
offsetX=colMark+colMarkPadding
# Draw
po=int(self.gridWidth/2) # Pen offset
for i in range(0,len(self.eventsRect)):
r=self.eventsRect[i]
for e in self.events[i]:
painter.drawText(r.x()+po+offsetX,r.y(),r.width()-offsetX-po*2,r.height(),0,"event testddddddddddddd")
painter.setPen(Qt.PenStyle.NoPen)
painter.drawRect(r.x(),r.y(),colMark,labelH) # Remember r is within grid stroke
painter.setPen(pen)
def mouseMoveEvent(self, event):
"""
This is possible because of self.setMouseTracking(True) inside the view
"""
pos=event.scenePos()
x, y=(int(pos.x()),int(pos.y()))
self.mouseOver=-1
for i in range(0,len(self.daysRect)):
r=self.daysRect[i]
if r.contains(x,y):
self.mouseOver=i
self.update()
event.accept()
break
def mousePressEvent(self, event):
b=event.button()
if self.mouseOver>=0 and b==Qt.MouseButton.LeftButton:
event.accept()
self.selection=self.calState.getMonthDays()[self.mouseOver]
event = QEvent(DaySelectedEvent)
QCoreApplication.postEvent(self.parent, event)
def pullState(self):
self.monthDays=self.calState.getMonthDays()
self.today=self.calState.today()
self.events=list()
for yy, mm, dd, ww in self.monthDays:
self.events.append(self.env.listEventsOn(yy,mm,dd))
class CalDrawer():
def __init__(self, parent, layout, env):
self.env=env
self.gs=CalDrawerScene(parent, env)
self.gv=CalQGraphicsView(self.gs)
# Setup propertion
spLeft=QSizePolicy(QSizePolicy.Policy.Preferred,QSizePolicy.Policy.Preferred);
spLeft.setHorizontalStretch(3);
self.gv.setSizePolicy(spLeft);
# if jean:
# spLeft=QSizePolicy(QSizePolicy.Policy.Preferred,QSizePolicy.Policy.Preferred);
# spLeft.setHorizontalStretch(2);
# self.gv.setSizePolicy(spLeft);
# else:
# spLeft=QSizePolicy(QSizePolicy.Policy.Preferred,QSizePolicy.Policy.Preferred);
# spLeft.setHorizontalStretch(1);
# self.gv.setSizePolicy(spLeft);
layout.addWidget(self.gv)
def getSelection(self):
return self.gs.selection
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