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Make the graph scalable by adjusting the painting code of the envelope so that it does not assume fixed widths and heights anymore. Remove the setting of a fixed size from the envelope graph and only set a minimum size. Make three scaling modes available which can be selected via a context menu in the graph: * "Dynamic": This modes corresponds to the rendering strategy of the previous implementation. Initially 80/182 of the available width is used as the maximum width per segment. This can be interpreted like a "zoomed" version of the absolute mode. If the needed space becomes larger than the full width though then it falls back to relative rendering. * "Absolute": Each of the five segments is assigned 1/5 of the available width. The envelopes will always fit but might appear small depending of the current settings. This is a good mode to compare envelopes though. * "Relative": If there is at least one non-zero segment then the whole width is always used to present the envelope. The default scaling mode is "Dynamic". ## Technical details The new painting code is more or less divided into two parts. The first part calculates `QPointF` instances for the different points. In the second part these points are then used to draw the lines and markers. This makes the actual rendering code much more straight forward, readable and maintainable. The interpolation between the line color of an inactive and an active envelope has also been restructured so that it is much more obvious that we are doing an interpolation in the first place. The colors at both ends of the interpolation are explicit now and can therefore be adjusted much easier. The actual color interpolation is done in the helper function `interpolateInRgb` which is provided by the new class `ColorHelper`. This class will later also be needed when the LFO graph is made scalable. The line is rendered as a polyline instead of single line segments. The drawing of the markers has been abstracted into a lambda (with some outside captures though) so that it can be easily adjusted if necessary. The markers are rendered as circles instead of rectangles because that looks much nicer especially when the widget is rendered at a larger size. The width of the lines and marker outlines is determined using the size of the widget so that it scales with the size. A `lerp` function has been added to `lmms_math.h`.
LMMS
What is LMMS?
LMMS is a free cross-platform alternative to commercial programs like FL Studio®, which allow you to produce music with your computer. This includes the creation of melodies and beats, the synthesis and mixing of sounds, and arranging of samples. You can have fun with your MIDI-keyboard and much more; all in a user-friendly and modern interface.
Homepage
Downloads/Releases
Developer Wiki
Artist & User Wiki/Documentation
Sound Demos
LMMS Sharing Platform Share your songs!
Features
- Song-Editor for composing songs
- Pattern-Editor for creating beats and patterns
- An easy-to-use Piano-Roll for editing patterns and melodies
- A Mixer with unlimited mixer channels and arbitrary number of effects
- Many powerful instrument and effect-plugins out of the box
- Full user-defined track-based automation and computer-controlled automation sources
- Compatible with many standards such as SoundFont2, VST(i), LADSPA, GUS Patches, and full MIDI support
- MIDI file importing and exporting
Building
See Compiling LMMS on our wiki for information on how to build LMMS.
Join LMMS-development
If you are interested in LMMS, its programming, artwork, testing, writing demo songs, (and improving this README...) or something like that, you're welcome to participate in the development of LMMS!
Information about what you can do and how can be found in the wiki.
Before coding a new big feature, please always file an issue for your idea and suggestions about your feature and about the intended implementation on GitHub, or ask in one of the tech channels on Discord and wait for replies! Maybe there are different ideas, improvements, or hints, or maybe your feature is not welcome/needed at the moment.