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我正在使用python和Qt Designer来实现加载tiff图像并启用平移和缩放某些鼠标事件(滚轮缩放,按下滚轮 - 平移).

我正在研究一些可以处理图像等的选项和类,到目前为止我发现:

QGraphicsScene,QImage,QGraphicsView

我有三个班(只是测试)

1. 具有QGraphicsView元素的ViewerDemo:

       """description of class"""
       # Form implementation generated from reading ui file 'GraphicsViewdemo.ui'
       try:
       _fromUtf8 = QtCore.QString.fromUtf8
       except AttributeError:
           def _fromUtf8(s):
               return s
           class Ui_Dialog(object):
               def setupUi(self, Dialog):
                   Dialog.setObjectName(("Dialog"))
                   Dialog.resize(500, 500)
               self.graphicsView = QtGui.QGraphicsView(Dialog)
               self.graphicsView.setGeometry(QtCore.QRect(0, 0, 500, 500))
               self.graphicsView.setObjectName(("graphicsView"))
               self.retranslateUi(Dialog)
               QtCore.QMetaObject.connectSlotsByName(Dialog)
           def retranslateUi(self, Dialog):
               Dialog.setWindowTitle(QtGui.QApplication.translate("Dialog", "Dialog", None,
   QtGui.QApplication.UnicodeUTF8))
   

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2. MyForm类,即QDialog,我调用类ViewerDemo,加载Image,并将图像放入QGraphicsView

       import sys
       from ViewerDemo import *
       from PyQt4 import QtGui
       class MyForm(QtGui.QDialog):
           def __init__(self, …

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