如何将QRect的值存储到列表

Question

我在PyQt4中使用PyQt4，在其中剪切图像。我需要QRect中所有的坐标值，如x1，y1，x2，y2。下面是用于剪切图像的鼠标事件的几个功能。

def mousePressEvent(self, QMouseEvent): 
    self.origin = QMouseEvent.pos()
    self.rubberband.setGeometry(QtCore.QRect(self.origin, QtCore.QSize()) )
    self.rubberband.show()

def mouseMoveEvent(self, QMouseEvent):
    self.x = int(QMouseEvent.x())
    self.y = int(QMouseEvent.y())
    text1 = str(self.x)
    text2 = str(self.y)
    print self.x,self.y
    QtGui.QToolTip.showText(QMouseEvent.pos() , "X: "+text1+" "+"Y: "+text2,self)
    if self.rubberband.isVisible():
        self.rubberband.setGeometry(QtCore.QRect(self.origin, QMouseEvent.pos()).normalized() & self.image.rect())

def cropImage(self,rect,QMouseEvent):
    self.image = self.image.copy(rect)
    self.pic.setPixmap(QtGui.QPixmap.fromImage(self.image))
    self.image.save(os.getcwd()+'/cropped.png')
    self.update()

def mouseReleaseEvent(self, QMouseEvent):
    if self.rubberband.isVisible():
        self.rubberband.hide()
        selected = []
        rect = self.rubberband.geometry()
        print rect
        self.cropImage(rect,QMouseEvent)

如果我打印rect，我得到的输出是

PyQt4.QtCore.QRect(51, 122, 131, 185)

我感兴趣的是将这些QRect值保存在list中以供进一步处理。

Answer 1

如果您有以下对象rect = QRect(x, y, w, h)，则可以使用以下函数获取每个项：

x = rect.x()
y = rect.y()
w = rect.width()
h = rect.height()

示例：

from PyQt4 import QtCore, QtGui
import sys

app = QtGui.QApplication(sys.argv)
rect = QtCore.QRect(51, 122, 131, 185)
x = rect.x()
y = rect.y()
w = rect.width()
h = rect.height()
print(x, y, w, h)
sys.exit(app.exec_())

Answer 2

使用getRect()方法的QRect

from PyQt5.QtCore import QRect

rect = QRect(51, 122, 131, 185)
print(rect.getRect())

打印(51, 122, 131, 185)