问题描述
我正在尝试加载图像我不知道如何使用 pkgutil.get_data() 加载图像，我更喜欢使用它，因为我不想有固定路径在我的代码中.
I am attempting to load in images I can't figure out how to load the images using pkgutil.get_data() which I would prefer to use since I don't want to have fixed paths in my code.
目前，我有这样的东西，只有在用完同一个文件夹时才有效.
Currently, I have something like this, which works only when running out of the same folder.
...
self.imagePixmap = QtGui.QPixmap("img/myImage.png")
...
问题是，如果您从其他文件夹运行脚本，路径就会混乱，您会收到此错误:
The issue then is, if you run the script from other folders the path is messed up and you get this error:
QPixmap::scaled: 像素图是一个空像素图
我想使用类似:pkutil.get_data("img", "myImage.png") 来加载图像，但是这提供了图像文件中的数据，其中 QPixmap() 想要其他类型的数据.
I would like to use something like: pkutil.get_data("img", "myImage.png") to load the images however this provides the data from the image file where QPixmap() wants other kinds of data.
我能看到的唯一解决方法"是使用他们在此处指定的部分内容:pkgutil.get_data并做这样的事情:
The only "workaround" I can see is to use part of what they specify here: pkgutil.get_data and do something like this:
self.myPath = os.path.dirname(sys.modules[__name__].__file__)
self.imagePixmap = QtGui.QPixmap(os.path.join(self.myPath,"img/myImage.png"))
这对我来说似乎很kludge.有没有更好的办法?
This just seems to much of a kludge to me. Is there a better way?
推荐答案
这是我最终发现的.我应该让 rtfm 更接近一点.无论如何，您可以使用 loadFromData() 方法从 QByteArray 获取数据并将其中数据的格式传递给它.
Here is what I ended up finding out. I should have rtfm a little closer. Anyway, you can use the loadFromData() method to get data from a QByteArray and pass it the format of the data therein.
self.imagePixmap = QtGui.QPixmap()
self.imagePixmap.loadFromData(get_data(__name__, "img/myImage.png"), 'png')
这是来自此处的信息链接:
bool QPixmap::loadFromData(const QByteArray &data, const char *format = Q_NULLPTR, Qt::ImageConversionFlags flags = Qt::AutoColor)
这是一个重载函数.
使用指定的格式和转换标志从二进制数据加载像素图.
Loads a pixmap from the binary data using the specified format and conversion flags.
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