Worked on the linuxdeepin/dtkwidget repository to address UI reliability issues related to text wrapping and width calculations in DFloatingMessage and DToolTip components. Focused on refining how multi-line text with newlines is rendered, the developer used C++ and Qt to fix width calculation logic, ensuring that auto-wrapped content displays accurately without truncation or layout glitches. By stabilizing the sizing algorithms for these widgets, the changes reduced user-visible layout problems and minimized related bug reports. The work demonstrated attention to detail in widget development, resulting in more consistent tooltip and message rendering across the application’s user interface.