With the Material Design icons, any other icons brought in through
the system icon theme will look inconsistent.
Also remove the KEEPASSXC_IGNORE_ICON_THEME environment variable
(which was introduced during development of the new icons to
disable the system icon theme and is thus no longer needed).
Fixes#475
Use nullptr instead of 0 or NULL to initialize a null pointer. In some
cases, readability was enhanced by replacing 0 with more meaningful
values according to the type of the pointer being initialized.
The arg() function of the QString class has a variable length argument
which allows to reduce the number of chained calls to the same function.
With proper formatting, readability is not affected.
Performing a dev build against the latest version of Qt failed
because of some deprecated members. They have been replaced
according to the Qt documentation.
Further, Q_OS_MACOS is now the only macro available to identify a
machine running macOS, the others are now deprecated.
See https://doc.qt.io/qt-5/qtglobal.html#Q_OS_OSX and
https://doc.qt.io/qt-5/qtglobal.html#Q_OS_MAC.
This enables coordinate system scaling for high-DPI
displays, which enforces correct proportions even
on small 4k displays. The icons are scaled up without
interpolation, which makes them crisp, but a bit
pixelated. A new scalable icon set will solve this
problem, but is not scope of this patch.
Resolves#548, #1381, #1710, #1888
In addition, this patch enforces the KeePassXC icon
theme for the KMessageBox close icon, since using
the system theme produces very ugly icons on some
Linux systems.
KeepassXC tries to load the theme icon first and then falls back to the internal icon unless the check is explicitely disabled. Remove the check from most icons
Fixes#756
