Android: Improper size of window and crash with measure tool

[krticka]

Steps to reproduce

1. Try to measure length of object
2. Result is located in very small window, not readable
3. Move window to upper dock position and try to move window to different position.

Actual behaviour

Result of measuring is not readable, window is too small. Resize of window does not work. After move of window to upper dock position window is enlarges automatically, result is readable, but application accidentally crashes after move of window back above map field.

Expected behaviour

Readable result of measurement, resize of window is working, no crash on window move.

Configuration

Mapper Version: 0.6.6
Operating System: Android 6.0.1 (Samsung Galaxy Note 4)

[dg0yt]

It is a little bit more complicated, and probably outside of our source code.

• The measure widget is a "dock widget". It is initially "floating" (undocked), but it gets docked and resized when you move it to the top (or any other border). (I even contributed a change to Qt to have a titlebar at all, for closing and moving.) There shouldn't be a crash, though.
• The initial size should get some review.
• Basically, resizing does work as well, as it does on the desktop.
• One issue especially on Android devices is insufficient high-dpi support in the version Qt we are using at the moment (Qt 5.5.1). The tiny icons in the widget title bar are an outcome of this. Thus I won't look into this issue before I can make relases based on Qt 5.6 (Switch to Qt 5.6 #673). (I think I can release my local work in the next weeks.)

This issue reminds us of the fact that the Android port of Mapper is still very much a proof-of-concept.