qcustomplot滚轮事件
时间: 2023-10-28 22:06:05 浏览: 174
在QCustomPlot中,滚轮事件可以通过重写鼠标滚轮事件处理函数来实现。根据引用的代码,可以看到在MyCustomplot类中,鼠标滚轮事件的处理函数是mousePressEvent、mouseMoveEvent和mouseReleaseEvent。在这些函数中,可以通过event->delta()获取鼠标滚动的步长,根据步长的正负情况来判断滚轮的方向。根据引用的提示,event->delta()通常为-120或120的倍数,可以通过计算wheelSteps来考虑滚轮方向。
所以,要实现qcustomplot的滚轮事件,可以在MyCustomplot类中重写鼠标滚轮事件处理函数,根据event->delta()的值来判断滚轮方向,并进行相应的操作。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *2* [QT-QCustomplot实现左键拖动、右键框选、滚轮缩放与菜单选项](https://blog.csdn.net/amxld/article/details/110495482)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item style="max-width: 50%"]
- *3* [QCustomPlot中通过鼠标滚轮缩放图形使yAxis范围总是从零开始](https://blog.csdn.net/lhw19931201/article/details/103631644)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item style="max-width: 50%"]
[ .reference_list ]
阅读全文