As suggested by @luzpaz, this adds a tooltip to the f(x) icon of all
of the widgets that use it: QuantitySpinBox, UIntSpinBox, IntSpinBox,
DoubleSpinBox, and ExpLineEdit. These five classes are divided across
three files, and all five classes duplicate the same basic code. In the
existing code, no tooltip is shown if there is no expression. If there
is an expression, it (alone) is used as the tooltip.
This commit modifies that behavior to have explanatory text as the
tooltip when there is no expression, and when there is, to prepend a
short string to the beginning.
To reduce further code duplication, this is implemented by adding a new
function to ExpressionLabel allowing the text of the expression to be set.
It checks that text and if it's empty, uses a preset default string as the
tooltip. If there is expression text, it instead prepends another
bit of text to the front and sets the entire expression+prefix as the
tooltip.
TODO: In the future a lot of the preexisting code duplication could be
removed by making the ExpressionLabel class do more internal management
of the expression.
Thanks to @kisolre for the assistance tracking these down, and
suggesting the default text used.
SO's auto rotation has its own rotation logic that ends at fixed positions. This collides with the "to nearest" option whose aim is to rotate to the next sensible state taking into account from what position the rotation was started.
Thus the solution is to disable SO's auto rotation while the cube is rotated.
fixes bug 4495
- add missing edge faces
- implement a proper rotation recipe -> rotate towards the nearest possible state
- add preferences settings to turn off this new rotation behavior
- get rid of transparent cube faces to avoid wrong clicks, this way also remove the backfaces
- to make the edge faces fit, use triangles for the corners
- expose cube size setting to preferences dialog
- add new button to view backside
- get rid of bitmaps because as reported in https://forum.freecadweb.org/viewtopic.php?f=3&t=52118&start=20#p481781
the x y z labels are not scaled on HiDPI screens
moreover they are often "in they way" when you want to click on a corner and in principle they don't provide more info since we already have the CS with the axis labels
- also fix an arithmetic overflow compiler warning
- also rename 2 variables
By default (on platforms that support it, X11 and Windows currently) QT
applies compression for high frequency events (mouse move, touch, window
resizes) to keep things smooth even when handling the event takes a
while (e.g. to calculate snapping).
However, tablet pen move events (and mouse move events synthesised from
those, which is what FreeCAD uses) are not compressed by default (to
allow maximum precision when e.g. hand-drawing curves), leading to
unacceptable slowdowns using a tablet pen.
This commit enable compression for tablet events here to solve that and
make use of a tablet just as smooth as a mouse with FreeCAD.
This can (and likely will) lead to some movement events being dropped,
but since there is no freeform curve drawing tool, that should not be
problematic (and if it is ever added, it could still work without
compression if the mouse movement event handler is written to be fast
enough).
