QT类的继承结构

QT类的继承结构

 

QT的类

     core

            数据集合

                      QString

            

            几何类

                                                 QPoint

                                                 QSize

                                                 QRectangle

                                   系统类

                                                 QColor 

                                                 QFont

                                                 QImage

                                                 QIcon

                                                 QCursor

                                                 QBitmap

                                                 ...   

     

       gui

                                          窗体类

                                                        |-框架窗体     QMainWindow(SDI/MDI)[菜单/工具条/状态条/带文档与视图]

                                                        |-对话框窗体QDialog[模式对话框/非模式]

                                          组件

                                                        显示组件

                                                        输入组件

                                                        按钮

                                                        容器

                                                        菜单

                                                        布局组件

                                                        高级数据组件

                                                               表格/树型

 

                      窗体类的结构                                                                       

                     QObject                       QPaintDevice

                       |------|-------|

                            QWidget

                              |

                      |--------------------|------------------|------------------------------------|

                     QMainWindow                                   QDialog            控件

               QObject:

                           非静态

                     connect

                     disconnect

                     静态

                     connect

                     disconnect

                     tr

                     维护子对象的关系

                     定时器事件

                    

                     析构器中发出信号：

                                   destroy.

                    

       QPaintDevice(所有可视化控件都是绘制设备)

                     可视化组件高度height() width();

                     屏幕分辨率等相关信息

       QWidget

                     常规属性                           

                                   几何属性:

                                   图标

                                   光标

                                   标题

              基本事件(绘制/鼠标事件/键盘事件)