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StockDialog.py
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StockDialog.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Created on 2022年12月12日
@site: https://pyqt.site , https://github.com/PyQt5
@description: QPainter绘制各种图形
"""
import sys
try:
from PyQt5.QtWidgets import QApplication, QWidget, qApp
from PyQt5.QtGui import QPainter, QFont, QColor, QPixmap
from PyQt5.QtCore import Qt, pyqtSignal, QPointF
from PyQt5.Qt import QPoint, QPolygon, QSplitter, QFrame, QGridLayout, QLabel,\
QComboBox, QSpinBox, QPalette, QStackedWidget, QVBoxLayout,\
QPushButton, QColorDialog, QPen,QLinearGradient, QConicalGradient,\
QRadialGradient, QBrush, QRect, QPainterPath, QFileDialog
except ImportError:
from PySide2.QtWidgets import QApplication, QWidget, qApp
from PySide2.QtGui import QPainter, QFont, QColor, QPixmap
from PySide2.QtCore import Qt, pyqtSignal, QPointF
from PySide2.Qt import QPoint, QPolygon, QSplitter, QFrame, QGridLayout, QLabel,\
QComboBox, QSpinBox, QPalette, QStackedWidget, QVBoxLayout,\
QPushButton, QColorDialog, QPen, QLinearGradient, QConicalGradient,\
QRadialGradient, QBrush, QRect , QPainterPath, QFileDialog
class StockDialog(QWidget):
def __init__(self, parent=None):
super(StockDialog, self).__init__(parent)
self.setWindowTitle("QPainter绘制各种图形")
mainSplitter = QSplitter(Qt.Horizontal)
mainSplitter.setOpaqueResize(True)
frame = QFrame(mainSplitter)
mainLayout = QGridLayout(frame)
mainLayout.setSpacing(6)
label1 = QLabel("形状：")
label2 = QLabel("画笔线宽：")
label3 = QLabel("画笔颜色：")
label4 = QLabel("画笔风格：")
label5 = QLabel("画笔顶端：")
label6 = QLabel("画笔连接点：")
label7 = QLabel("画刷风格：")
label8 = QLabel("画刷颜色：")
self.shapeComboBox = QComboBox()
self.shapeComboBox.addItem("Line", "Line")
self.shapeComboBox.addItem("Rectangle", "Rectangle")
self.shapeComboBox.addItem('Rounded Rectangle', 'Rounded Rectangle')
self.shapeComboBox.addItem('Ellipse', 'Ellipse')
self.shapeComboBox.addItem('Pie', 'Pie')
self.shapeComboBox.addItem('Chord', 'Chord')
self.shapeComboBox.addItem('Path', 'Path')
self.shapeComboBox.addItem('Polygon', 'Polygon')
self.shapeComboBox.addItem('Polyline', 'Polyline')
self.shapeComboBox.addItem('Arc', 'Arc')
self.shapeComboBox.addItem('Points', 'Points')
self.shapeComboBox.addItem('Text', 'Text')
self.shapeComboBox.addItem('Pixmap', 'Pixmap')
self.widthSpinBox = QSpinBox()
self.widthSpinBox.setRange(0, 20)
self.penColorFrame = QFrame()
self.penColorFrame.setAutoFillBackground(True)
self.penColorFrame.setPalette(QPalette(Qt.blue))
self.penColorPushButton = QPushButton("更改")
self.penStyleComboBox = QComboBox()
self.penStyleComboBox.addItem("Solid", Qt.SolidLine)
self.penStyleComboBox.addItem('Dash', Qt.DashLine)
self.penStyleComboBox.addItem('Dot', Qt.DotLine)
self.penStyleComboBox.addItem('Dash Dot', Qt.DashDotLine)
self.penStyleComboBox.addItem('Dash Dot Dot', Qt.DashDotDotLine)
self.penStyleComboBox.addItem('None', Qt.NoPen)
self.penCapComboBox = QComboBox()
self.penCapComboBox.addItem("Flat", Qt.FlatCap)
self.penCapComboBox.addItem('Square', Qt.SquareCap)
self.penCapComboBox.addItem('Round', Qt.RoundCap)
self.penJoinComboBox = QComboBox()
self.penJoinComboBox.addItem("Miter", Qt.MiterJoin)
self.penJoinComboBox.addItem('Bebel', Qt.BevelJoin)
self.penJoinComboBox.addItem('Round', Qt.RoundJoin)
self.brushStyleComboBox = QComboBox()
self.brushStyleComboBox.addItem("Linear Gradient", Qt.LinearGradientPattern)
self.brushStyleComboBox.addItem('Radial Gradient', Qt.RadialGradientPattern)
self.brushStyleComboBox.addItem('Conical Gradient', Qt.ConicalGradientPattern)
self.brushStyleComboBox.addItem('Texture', Qt.TexturePattern)
self.brushStyleComboBox.addItem('Solid', Qt.SolidPattern)
self.brushStyleComboBox.addItem('Horizontal', Qt.HorPattern)
self.brushStyleComboBox.addItem('Vertical', Qt.VerPattern)
self.brushStyleComboBox.addItem('Cross', Qt.CrossPattern)
self.brushStyleComboBox.addItem('Backward Diagonal', Qt.BDiagPattern)
self.brushStyleComboBox.addItem('Forward Diagonal', Qt.FDiagPattern)
self.brushStyleComboBox.addItem('Diagonal Cross', Qt.DiagCrossPattern)
self.brushStyleComboBox.addItem('Dense 1', Qt.Dense1Pattern)
self.brushStyleComboBox.addItem('Dense 2', Qt.Dense2Pattern)
self.brushStyleComboBox.addItem('Dense 3', Qt.Dense3Pattern)
self.brushStyleComboBox.addItem('Dense 4', Qt.Dense4Pattern)
self.brushStyleComboBox.addItem('Dense 5', Qt.Dense5Pattern)
self.brushStyleComboBox.addItem('Dense 6', Qt.Dense6Pattern)
self.brushStyleComboBox.addItem('Dense 7', Qt.Dense7Pattern)
self.brushStyleComboBox.addItem('None', Qt.NoBrush)
self.brushColorFrame = QFrame()
self.brushColorFrame.setAutoFillBackground(True)
self.brushColorFrame.setPalette(QPalette(Qt.green))
self.brushColorPushButton = QPushButton("更改")
labelCol = 0
contentCol = 1
# 建立布局
mainLayout.addWidget(label1, 1, labelCol)
mainLayout.addWidget(self.shapeComboBox, 1, contentCol)
mainLayout.addWidget(label2, 2, labelCol)
mainLayout.addWidget(self.widthSpinBox, 2, contentCol)
mainLayout.addWidget(label3, 4, labelCol)
mainLayout.addWidget(self.penColorFrame, 4, contentCol)
mainLayout.addWidget(self.penColorPushButton, 4, 3)
mainLayout.addWidget(label4, 6, labelCol)
mainLayout.addWidget(self.penStyleComboBox, 6, contentCol)
mainLayout.addWidget(label5, 8, labelCol)
mainLayout.addWidget(self.penCapComboBox, 8, contentCol)
mainLayout.addWidget(label6, 10, labelCol)
mainLayout.addWidget(self.penJoinComboBox, 10, contentCol)
mainLayout.addWidget(label7, 12, labelCol)
mainLayout.addWidget(self.brushStyleComboBox, 12, contentCol)
mainLayout.addWidget(label8, 14, labelCol)
mainLayout.addWidget(self.brushColorFrame, 14, contentCol)
mainLayout.addWidget(self.brushColorPushButton, 14, 3)
mainSplitter1 = QSplitter(Qt.Horizontal)
mainSplitter1.setOpaqueResize(True)
stack1 = QStackedWidget()
stack1.setFrameStyle(QFrame.Panel | QFrame.Raised)
self.area = PaintArea()
stack1.addWidget(self.area)
frame1 = QFrame(mainSplitter1)
mainLayout1 = QVBoxLayout(frame1)
mainLayout1.setSpacing(6)
mainLayout1.addWidget(stack1)
layout = QGridLayout(self)
layout.addWidget(mainSplitter1, 0, 0)
layout.addWidget(mainSplitter, 0, 1)
self.setLayout(layout)
# 信号和槽函数
self.shapeComboBox.activated.connect(self.slotShape)
self.widthSpinBox.valueChanged.connect(self.slotPenWidth)
self.penColorPushButton.clicked.connect(self.slotPenColor)
self.penStyleComboBox.activated.connect(self.slotPenStyle)
self.penCapComboBox.activated.connect(self.slotPenCap)
self.penJoinComboBox.activated.connect(self.slotPenJoin)
self.brushStyleComboBox.activated.connect(self.slotBrush)
self.brushColorPushButton.clicked.connect(self.slotBrushColor)
self.slotShape(self.shapeComboBox.currentIndex())
self.slotPenWidth(self.widthSpinBox.value())
self.slotBrush(self.brushStyleComboBox.currentIndex())
def slotShape(self, value):
shape = self.area.Shape[value]
self.area.setShape(shape)
def slotPenWidth(self, value):
color = self.penColorFrame.palette().color(QPalette.Window)
style = Qt.PenStyle(self.penStyleComboBox.itemData(self.penStyleComboBox.currentIndex(), Qt.UserRole))
cap = Qt.PenCapStyle(self.penCapComboBox.itemData(self.penCapComboBox.currentIndex(), Qt.UserRole))
join = Qt.PenJoinStyle(self.penJoinComboBox.itemData(self.penJoinComboBox.currentIndex(), Qt.UserRole))
self.area.setPen(QPen(color, value, style, cap, join))
def slotPenStyle(self, value):
self.slotPenWidth(value)
def slotPenCap(self, value):
self.slotPenWidth(value)
def slotPenJoin(self, value):
self.slotPenWidth(value)
def slotPenColor(self):
color = QColorDialog.getColor(Qt.blue)
self.penColorFrame.setPalette(QPalette(color))
self.area.setPen(QPen(color))
def slotBrushColor(self):
color = QColorDialog.getColor(Qt.blue)
self.brushColorFrame.setPalette(QPalette(color))
self.slotBrush(self.brushStyleComboBox.currentIndex())
def slotBrush(self, value):
color = self.brushColorFrame.palette().color(QPalette.Window)
style = Qt.BrushStyle(self.brushStyleComboBox.itemData(value, Qt.UserRole))
if (style == Qt.LinearGradientPattern):
linearGradient = QLinearGradient(0, 0, 400, 400)
linearGradient.setColorAt(0.0, Qt.white)
linearGradient.setColorAt(0.2, color)
linearGradient.setColorAt(1.0, Qt.black)
self.area.setBrush(linearGradient)
elif style == Qt.RadialGradientPattern:
radialGradient = QRadialGradient(200, 200, 80, 70, 70);
radialGradient.setColorAt(0.0, Qt.white)
radialGradient.setColorAt(0.2, Qt.green)
radialGradient.setColorAt(1.0, Qt.black)
self.area.setBrush(radialGradient)
elif (style == Qt.ConicalGradientPattern):
conicalGradient = QConicalGradient(200, 200, 30)
conicalGradient.setColorAt(0.0, Qt.white)
conicalGradient.setColorAt(0.2, color)
conicalGradient.setColorAt(1.0, Qt.black)
self.area.setBrush(conicalGradient)
elif (style == Qt.TexturePattern):
self.area.setBrush(QBrush(QPixmap("./Data/qt-logo.png")))
else:
self.area.setBrush(QBrush(color, style))
class PaintArea(QWidget):
def __init__(self):
super(PaintArea, self).__init__()
self.Shape = ["Line", "Rectangle", 'Rounded Rectangle', "Ellipse", "Pie", 'Chord',
"Path", "Polygon", "Polyline", "Arc", "Points", "Text", "Pixmap"]
self.setPalette(QPalette(Qt.white))
self.setAutoFillBackground(True)
self.setMinimumSize(500, 500)
self.pen = QPen()
self.brush = QBrush()
def setShape(self, s):
self.shape = s
self.update()
def setPen(self, p):
self.pen = p
self.update()
def setBrush(self, b):
self.brush = b
self.update()
def paintEvent(self, QPaintEvent):
p = QPainter(self)
p.setPen(self.pen)
p.setBrush(self.brush)
rect = QRect(50, 100, 300, 200)
points = [QPoint(150, 100), QPoint(300, 150), QPoint(350, 250), QPoint(100, 300)]
startAngle = 30 * 16
spanAngle = 120 * 16
if self.shape == "Line":
p.drawLine(rect.topLeft(), rect.bottomRight())
elif self.shape == "Rectangle":
p.drawRect(rect)
elif self.shape == 'Rounded Rectangle':
p.drawRoundedRect(rect, 25, 25, Qt.RelativeSize)
elif self.shape == "Ellipse":
p.drawEllipse(rect)
elif self.shape == "Polygon":
p.drawPolygon(QPolygon(points), Qt.WindingFill)
elif self.shape == "Polyline":
p.drawPolyline(QPolygon(points))
elif self.shape == "Points":
p.drawPoints(QPolygon(points))
elif self.shape == "Pie":
p.drawPie(rect, startAngle, spanAngle)
elif self.shape == "Arc":
p.drawArc(rect, startAngle, spanAngle)
elif self.shape == "Chord":
p.drawChord(rect, startAngle, spanAngle)
elif self.shape == "Path":
path = QPainterPath()
path.addRect(150, 150, 100, 100)
path.moveTo(100, 100)
path.cubicTo(300, 100, 200, 200, 300, 300)
path.cubicTo(100, 300, 200, 200, 100, 100)
p.drawPath(path)
elif self.shape == "Text":
p.drawText(rect, Qt.AlignCenter, "Hello Qt!")
elif self.shape == "Pixmap":
p.drawPixmap(150, 150, QPixmap("./Data/qt-logo.png"))
if __name__ == '__main__':
app = QApplication(sys.argv)
form = StockDialog()
form.show()
app.exec_()