2a72808095
Fix a crash that occurred on the following steps: 1. Add an AFP track. 2. Open it, and move the waveform display to overlap the track label button. 3. Close the AFP window and open it again by clicking the track label. 4. Move the mouse pointer. The problem occurs because the code makes the implicit assumption that AudioFileProcessorWaveView::enterEvent (and hence QApplication::setOverrideCursor) is called before AudioFileProcessorWaveView::mouseMoveEvent. This is not the case when the waveform display is on top of the track label. In this case the AFP windows is opened with the mouse being immediately positioned over the wave form display. There is no enter event and move events are issues directly. This then leads to a crash in AudioFileProcessorWaveView::mouseMoveEvent when trying to determine the value for is_size_cursor because the override cursor is still null but is dereferenced directly without checking. Only adding a check would not solve the problem because in that case the cursor would not change to the hand cursor when being moved inside the waveform display. The solution is to remove all calls to the global methods setOverrideCursor and restoreOverrideCursor and to only set the cursor locally. This fix is based on a patch by gi0e5b06 which is committed under 8a10c52 in his repository but for which he never created a pull request.
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
- A Beat+Bassline-Editor for creating beats and basslines
- An easy-to-use Piano-Roll for editing patterns and melodies
- An FX mixer with unlimited FX 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 post to the LMMS developers mailinglist (lmms-devel@lists.sourceforge.net) and wait for replies! Maybe there are different ideas, improvements, hints or maybe your feature is not welcome/needed at the moment.