-
ZNodes
说明： qt中提供了QGphicsView，QGraphicsScene，QGraphicsItem，QGraphicsPixmapItem是QGraphicsItem的子类
分辨创建它们的实例：view，scene，item，然后通过各自的方法scene->addItem(item);view->setScene(scene);就可以达到类似下图的效果，想要进一步定制，则要继承QGraphicsItem或QGraphicsPixmapItem，然后重写paint()、boundingRect()等方法，此外如果还想要获取鼠标事件，重写mousePressEvent等事件就好了，注意，一旦重写了mousePressEvent方法，就以为了qt不会再自动处理item的任何press事件了，可以在你重写的mousePressEvent方法中最后添加QGraphicsItem::mousePressEvent(event);解决这个问题，就是说你获取到了鼠标事件，但是依然让qt处理这个鼠标事件。(QGphics View, QGraphics Scene, QGraphics Item and QGraphics PixmapItem are provided in qt. They are subclasses of QGraphics Item.
Resolve the instances of creating them: view, scene, item, and then use their respective methods scene - > addItem (item); view - > setScene (scene); you can achieve the effect similar to the figure below. If you want to further customize, you need to inherit QGraphics Item or QGraphics Pixmap Item, and then rewrite paint (), boundingRect () and other methods, and if you want to do so. If you want to get mouse events, rewrite events like mousePressEvent. Note that once you rewrite the mousePressEvent method, you think that QT will no longer automatically handle any press events of item. You can finally add QGraphics Item:: mousePressEvent (event) to your rewritten mousePressEvent method to solve this problem. That is, you get the mouse event, but still let QT handle the mouse event.)
- 2020-06-16 20:20:01下载
- 积分：1
-
rk3399硬件编解码demo及文档
rk3399硬件编解码demo及文档
- 2021-07-22 00:33:19下载
- 积分：1
-
see5-public
C5.0 决策树源码, 此算法要优于C4.5算法(C5.0 decision tree source, this algorithm is superior to C4.5 algorithm)
- 2020-11-10 19:49:46下载
- 积分：1
-
IR_SH79F32
说明： 中颖单片机SH79F32红外通讯实例IR_SH79F32(Ying SCM SH79F32 infrared communication in instances IR_SH79F32)
- 2010-04-16 12:25:33下载
- 积分：1
-
NiC_PFC
基于氮化镓的双BOOST电路，大功率UPS前置PFC电路(BOOST AND PFC)
- 2017-02-04 16:38:21下载
- 积分：1
-
T3T4
c8051f，t3产生方波，t4计数自动重载，在计数应用使用率比较高，简单代码，稍加修改即可将其加入自己的代码(c8051f060 T3 configuring as Mode1,T4 Auto-Reload Mode)
- 2010-06-05 17:09:41下载
- 积分：1
-
OutSort
常见的外部管理系统，文章写了一些常见的外部排序的算法及实现(Common external management system, the article written some of the common external sorting algorithm and implementation)
- 2011-06-24 22:41:44下载
- 积分：1
-
TCP
TCP VEGAS RENO TAHOE IN NS2
- 2014-11-28 16:34:19下载
- 积分：1
-
Keyboard-
MSP430上类似手机九宫格的英文输入控制(MSP430 keyboard on cellphone)
- 2014-03-04 20:58:52下载
- 积分：1
-
qt读取文本文件的内容
qt读取文本文件的内容，自己编写出来的话就表明QT基本入门了(how to use qt to read the txt)
- 2015-09-02 11:57:19下载
- 积分：1
