QPainterوQPenوQPixmapشرح ال

 QPixmap

 

تستخدم لوضع صورة داخل البرنامج والتعامل مع الصور

 

Create object of QPushButton:

 

                 pixmap = QPixmap('111.png').scaled(200, 200)

EX:

from PyQt5.QtGui import QPixmap
from PyQt5.QtWidgets import *
import sys

class UI(QDialog):
    def __init__(self):
        super().__init__()
        self.resize(200, 200)
        pixmap = QPixmap('111.png').scaled(200, 200)
        lbl = QLabel(self)
        lbl.setPixmap(pixmap)

app = QApplication(sys.argv)
window = UI()
window.show()
app.exec_()

 

 Functions:

 

copy()	Copies pixmap data from a QRect object
fromImage()	Converts QImage object into QPixmap
grabWidget()	Creates a pixmap from the given widget
grabWindow()	Create pixmap of data in a window
Load()	Loads an image file as pixmap
save()	Saves the QPixmap object as a file
toImage	Converts a QPixmap to QImage

 

EX:

import sys
from PyQt5.QtWidgets import *
from PyQt5.QtGui import QPixmap

class Example(QWidget):

    def __init__(self):
        super().__init__()

        self.im = QPixmap('112.png')
        self.label = QLabel()
        self.label.setPixmap(self.im)

        self.grid = QGridLayout()
        self.grid.addWidget(self.label,1,1)
        self.setLayout(self.grid)

        self.setGeometry(50,50,320,200)
        self.setWindowTitle("PyQT show image")
        self.show()

if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = Example()

ex.show()
    app.exec_()

 

QPen class

 

QPainter علشان يحدد شكل الخط وشكل الحواف للأشكال اللي بيتم رسمها بالQPainterيستخدم مع ال

 

Create object:

 

from PyQt5.QtGui import QPen

pen = QPen((

 

Functions:

 

pen.setWidth(int)	تحدد سمك الخط
pen.setColor(Qt.gray)	تحدد لون الخط
pen.setStyle(int)	تحدد شكل الخط من 0 إلي 5   Qt.NoPen 0 Qt.SolidLine 1 Qt.DashLine 2 Qt.DotLine 3 Qt.DashDotLine 4 Qt.DashDotDotLine 5
pen.setCapStyle(Qt.SquareCap)	تحدد شكل الطرف بتاع الخط(بداية ونهاية الخط)   Qt.FlatCap 0x00 Qt.SquareCap 0x10 Qt.RoundCap 0x20
pen.setJoinStyle(Qt.BevelJoin)	تحدد شكل الأركان أو الزوايا بتاعت الخط   Qt.MiterJoin 0x00 Qt.BevelJoin 0x40 Qt.RoundJoin 0x80 Qt.SvgMiterJoin 0x100
open.setBrush(QBrush(Qt.Dense1Pattern))	تحدد شكل ملئ الخط   Qt.NoBrush 0 Qt.SolidPattern 1 Qt.Dense1Pattern 2 Qt.Dense2Pattern 3 Qt.Dense3Pattern 4 Qt.Dense4Pattern 5 Qt.Dense5Pattern 6 Qt.Dense6Pattern 7 Qt.Dense7Pattern 8 Qt.HorPattern 9 Qt.VerPattern 10 Qt.CrossPattern 11 Qt.BDiagPattern 12 Qt.FDiagPattern 13 Qt.DiagCrossPattern 14 Qt.LinearGradientPattern 15 Qt.ConicalGradientPattern 17 Qt.RadialGradientPattern 16 Qt.TexturePattern 24

 

 

QPainter class

علي النافذة……تستخدم لرسم أشكال مثل المربع والخط والمستطيل

 

Create object:

 

from PyQt5.QtGui import QPainter

painter = QPainter((

 

Steps:

 

 

ونحط جواها كود الرسم كما يلي: def paintEvent(self, QPaintEvent):بنعمل دالة أسمها QPainterللإستخدام ال

def paintEvent(self, QPaintEvent):
    painter = QPainter(self)
    painter.setPen(QPen(Qt.green, 8, Qt.DashLine))
    painter.drawEllipse(10,10,300,300)  # draw circle on window

 

Functions:

 

painter.drawEllipse(x,y,w,h)	تستخدم لرسم دائرة أو شكل بيضاوي
painter.drawArc(x,y,length,width, startAngle, spanAngle)		ترسم قوس
painter.drawLine(x1, y1, x2, y2)	ترسم خط بين نقطتين
begin()	تبدأ الرسم علي النافذة المرادة
drawText(x,y,’text’)	ترسم نص عند المقطة المعطاة

 

EX:

 

from PyQt5.QtWidgets import QApplication,QWidget
from PyQt5.QtCore import Qt, QPoint
from PyQt5.QtGui import )QPainterPath,QPolygon,QFont,QPainter,QPen,QPixmap,QBrush(
import sys

class window(QWidget):
    def __init__(self):
        super(window,self).__init__()

    def paintEvent(self, QPaintEvent):
        # ترسم دائرة محيط فقط
        # painter = QPainter(self)
        # painter.drawEllipse(10,10,300,300)

        # # ترسم دائرة مملوءة من الداخل بنمط Qt.SolidPattern
        # painter = QPainter(self)
        # painter.setBrush(QBrush(Qt.red, Qt.SolidPattern))
        # painter.drawEllipse(10, 10, 300, 300)

        # # ترسم دائرة مملوءة من الداخل بلون معينQt.CrossPattern
        # painter = QPainter(self)
        # painter.setBrush(QBrush(Qt.red, Qt.CrossPattern))
        # painter.drawEllipse(10, 10, 300, 300)

        # # ترسم قوس كجزء من دائرة
        # painter = QPainter(self)
        # painter.setPen(Qt.green)
        # painter.drawArc(100, 70, 300, 300, 0 * 16, 180 * 16)

        # # ترسم خط بين نقطتين
        # painter = QPainter(self)
        # painter.setPen(Qt.green)
        # painter.drawLine(0, 10, 200, 200)
        # # ترسم خط أفقي
        # painter = QPainter(self)
        # painter.setPen(Qt.blue)
        # painter.drawLine(400, 100, 100, 100)
        # # ترسم خط رأسي
        # painter = QPainter(self)
        # painter.setPen(Qt.blue)
        # painter.drawLine(100, 100, 100, 400)
        # # ترسم سهم
        # painter = QPainter(self)
        # painter.drawLine(400, 100, 100, 100)
        # painter.drawLine(150, 150, 100, 100)
        # painter.drawLine(150, 50, 100, 100)

        # # ترسم منحني
        # painter = QPainter(self)
        # path = QPainterPath()
        # path.moveTo(40, 40)
        # path.cubicTo(40, 40, 150, 250, 250, 40)
        # painter.drawPath(path)

        # # ترسم مثلث
        # painter = QPainter(self)
        # path = QPainterPath()
        # painter.setPen(Qt.blue)
        # painter.setBrush(Qt.blue) # fill the triangle
        # path.lineTo(160, 400)
        # path.lineTo(350, 100)
        # path.lineTo(10, 25)
        # painter.drawPath(path)

        # # draw polygon
        # painter = QPainter(self)
        # painter.setPen(QPen(Qt.black,  5, Qt.SolidLine))
        # painter.setBrush(QBrush(Qt.black, Qt.SolidPattern))
        # points = [QPoint(10,10),QPoint(10,100),QPoint(100,10),
        #     QPoint(100,100)]
        # poly = QPolygon(points)
        # painter.drawPolygon(poly)

        #  # ترسم صورة علي النافذة ومعها مستطيل
        # pixmap = QPixmap('download.png')
        # painter = QPainter(self)
        # painter.setPen(QPen(Qt.black,  5, Qt.SolidLine))
        # painter.drawRect(10,10,600,200)  # draw rectangular on window
        # painter.drawPixmap(self.rect(), pixmap)  # draw image on window

        # ترسم نص عند النقطة المعطاة
        painter = QPainter(self)
        painter.drawText(10,10,'welcome')

if __name__=='__main__':
    app = QApplication(sys.argv)
    wind = window()
    wind.show()
    app.exec()