* Rework PianoRoll paintEvent + some extras
* Split out PositionLine class to own file
* Refactor PianoRoll Q_PROPERTYs
* Reduce code by using Q_PROPERTY's MEMBER function and removing getter/setter functions
After looking at the getters and setters, they did nothing different than what direct
access would allow. Nothing outside of PianoRoll used the public functions as well.
Considering these factors we can reduce the number of functions by 2x the number of
Q_PROPERTIES, and go with direct access instead.
* Remove need for keyboard pixmaps
With the recent change to allow zooming vertically, aligning pixmaps is a PITA. Since
we have themes which can take brushes and colors, it would be simpler to take a solid
color or a gradient with some extra style properties to resize the keys and text colors.
While it will slightly be a downgrade from pixmaps since they can be anything really,
this will allow us to customize the piano roll further moving forward.
* Added the ability to update margins for TimeLineWidget and StepRecorderWidget
These take a X coordinate, which was hardcoded to WHITE_KEY_WIDTH, and never looked
back. Now we can adjust on the fly if we need to. Currently this just allows us to
shift the left margin to the style-defined white key width.
* Fix phantom pixmaps when PianoRoll not focused
* Update PositionLine class changes related to #5543
* src/gui/editors/SongEditor.cpp
* Gradient can be toggled and color can be changed.
* Made playback line (and tail) transparent to mouse clicks
* Gradient disappears when paused/stopped; tail length depends on zoom
* Fixes bug where gradient appears when a pattern is played; style corrections
* Cleaned up code
* Rename m_zoomLevels to s_zoomLevels
* Finalising code
* Make positionLine class independent of parent zooming model
* Edit a bug fix to make it more efficient
* Rename m_x and finalise positionLine code
* Rename m_x and finalise positionLine changes
* Rename X to playHeadPos
* New default behavior: Preserves offsets when moving clips, resizes in fixed increments.
* Adds shift + drag: Snaps move start position (like current behavior) or end position (new),
based on which is closest to the real position. When moving a selection,
the grabbed clip snaps into position and the rest move relative to it.
* Adds alt + drag: Allows fine adjustment of a clip's position or size,
as an alternative to ctrl + drag.
* Adds a Q dropdown in the song editor to allow finer or coarser snapping (8 bars to 1/16th bar)
* Adds a proportional snap toggle. When enabled, snapping size/Q adjusts based on zoom,
and a label appears showing the current snap size. This is disabled by default.
* Horizontal mouse-wheel zooming. Ensure zoom center is always on the current mouse position.
* Horizontal zoom using mouse wheel center on the mouse position. For the SongEditor too.
* Wheel center on the Automation editor too.
* play sampletracks from any song position
* take care of TCO length
* TCOs shouldn't be updated when SE window is resized
* take care of zooming level
* takes care on all song position changes and mute/solo tracks now
* playes the sample only within the buffer limits
* takes care of time signature changes
* some minor code improvements (zapashcanon)
* loopback one tick earlier
* minor code changes
* get rid off clicks by resize and scrolling song editor
* removes playhandle by remove TCO
* minor bugs on manipulating TCOs in Song Editor
* update on add sample by playing
* white spaces 1
* Fix missing scroll back on stop in Song Editor
* Fix missing scroll back on stop in Song Editor
* Avoid scrolling the Song Editor when scrolling is disabled.
* Handle the smooth scroll in scroll back
* Remove leading underscore from fonction parameters name
* Put back spaces around parameters (Removed by mistake)
