Comment 5 for bug 457218

Just a few more word to explain the changes I've made (according to the points mentioned at the top):

All the changes are related to the Advanced Selection Tool (I want to keep the Simple Selection Tool, because some older distros might not provide the library needed for the Advanced Selection Tool).

1) ability to enter the width, height, X and Y position of the selection manually into text fields

You can now open a popup when using the Advanced Selection Tool by hitting <Super> (Windows key) or using the right-click. There are some text fields to manipulate the geometry and the position of the current selection.

(close the popup by hitting <Super> again or right-click)

Additionally there is a new setting to configure an initial size and position of the selection in preferences.

2) ability to move and resize the selection rectangle with arrow keys or with mouse

cursor keys + alt = move selection
cursor keys + ctrl = resize selection

(This was already possible before)

3) always display the current dimension and position of the selection (the advanced selection tool doesn't display these informations)

The information is now shown in the zoom window.

4) always display the zoom window, it can be disabled, so it is not annoying

The zoom window will be displayed in the Advanced Selection Tool as well now (you can disable it via preferences). It hides automatically but can also be turned on/off via <space> key.

5) only take the screenshot when pressing a specified key (the simple selection tool immediately takes the screenshot upon releasing the mouse key, which is bad)

You can use <return> or double-click to take the screenshot.