LMMS/lmms

Fix/Improve PianoRoll Knife Tool UI

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#7,814 创建于 2025年3月25日

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 (1 评论) (0 反应) (0 负责人)C++ (7,132 star) (961 fork)batch import
good first issuegui

描述

Currently the knife tool in the piano roll is hidden behind the tool menu, when it probably should reside along with the other modes buttons, such as draw/erase/select/pitch bending.

Also, it would probably be good to add a TextFloat which appears when the user enters the knife mode giving some simple tips/instructions, particularly that you can use Shift to automatically remove the cut ends of the notes.

I am mostly just making this issue as a reminder for me to come back and fix these things, but if anyone wants to tackle these, feel free!

贡献者指南

技术栈
cpp
领域
desktop
议题类型
feature
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1-3 hours
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
fresh
清晰度议题是否清楚说明期望改动、验收标准和下一步。
mostly clear
前置要求
C++QtLMMS codebase familiarity
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
70
研究方向
Investigate the piano roll UI code in the LMMS repository, likely in src/gui/ or similar. Locate where the tool menu and mode buttons (draw/erase/select/pitch bending) are defined. Add the knife tool button alongside these buttons. Then, add a TextFloat widget that appears when knife mode is activated, displaying tips about using Shift to remove cut ends. Review existing TextFloat implementations for patterns.