pygtk 拖放问题：文件到 GtkFileChooserButton

发布于 2024-12-29 19:24:11 字数 1300 浏览 1 评论 0原文

我的应用程序有一个 GtkFileChooserButton，您可以使用它来打开选择器小部件并选择单个文件..，然后对该文件执行操作。这有效。

我添加了拖拽将功能也放到按钮上。它可以工作，但是有问题。

简而言之，FileChooserButton 的第一个 dnd 会触发文件集信号，并且似乎已起作用， - 名称从“( None )”更改为文件名，然后如果您单击按钮，它会弹出一个选择器小部件，显示所选的正确文件； 但是，正如您从下面的调试输出中看到的那样，get_filename() 不会返回文件名！ 无论如何，这不是第一次。

第二次将文件拖到按钮上（无论是不同的文件还是同一个文件），一切顺利，get_filename() 返回文件的姓名。为什么？

这是当我将三个文件一次一个拖到按钮上时程序的调试输出：

[on_file-set] FileChooserButton.get_filename() output:
None

[on_file-set] FileChooserButton.get_filename() output:
'/home/ryran/Desktop/priv.txt'

[on_file-set] FileChooserButton.get_filename() output:
'/home/ryran/Desktop/kinamppost'

PS：当我这样做时，第一个和第二个 dnd 实际上是同一个文件。

如果您想查看完整的应用程序，请访问 http://github.com/ryran/pyrite，我很想发布代码，但实际上没有什么可发布的！我没有执行 Drag_dest_set() 因为 FileChooserButton 已经支持 dnd。所以我所做的就是为 FileChooserButton 的文件集信号定义一个 cb 。所以呃..就是这样：

def action_chooserbtn_file_set(self, widget):
    print "[on_file-set] FileChooserButton.get_filename() output:\n{!r}\n".format(widget.get_filename())

根据记录，我也尝试与定义drag_dest_set一起执行所有这些操作，但得到了相同的结果。

还有什么可说的呢？我开始认为这是一个错误。

原文

My app has a GtkFileChooserButton that you can use to open a chooser widget and pick a single file .. and then perform operations on that file. This works.

I've added drag & drop functionality to the button as well. It works, but it's buggy.

In short, the first dnd to the FileChooserButton triggers the file-set signal and appears to have worked, -- the name changes from "( None )" to the file's name and if you then click on the button, it pops up a chooser widget showing the proper file selected; HOWEVER, as you can see from the debug output below, get_filename() does not return the filename! Not the first time, anyway.

The second time we dnd a file onto the button (whether it's a different file or the same file again), all goes well and get_filename() returns the file's name. Why?

Here's the debug output from my program when I drag three files on to the button, one at a time:

[on_file-set] FileChooserButton.get_filename() output:
None

[on_file-set] FileChooserButton.get_filename() output:
'/home/ryran/Desktop/priv.txt'

[on_file-set] FileChooserButton.get_filename() output:
'/home/ryran/Desktop/kinamppost'

PS: When I did this, the 1st and 2nd dnd were actually the same file.

If you want to see the full app in action, it's at http://github.com/ryran/pyrite, and I'd love to post code, but there's not really anything to post!! I'm not doing drag_dest_set() because FileChooserButton already supports dnd. So ALL I'm doing is defining a cb for the FileChooserButton's file-set signal. So uhh.. here's that:

def action_chooserbtn_file_set(self, widget):
    print "[on_file-set] FileChooserButton.get_filename() output:\n{!r}\n".format(widget.get_filename())

For the record I also tried doing all this in concert with defining drag_dest_set, but came up with the same results.

What else to say? I'm starting to think this is a bug.

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