标签:rtPreGeometry QT 自定义 拖动 void QMouseEvent int rtTempGeometry event
自己开发了一个傅里叶周期分析软件,可用于股票,基金,期货、外汇等数据的周期分析和趋势分析;关注微信公众号:QStockView
1.QT系统自带的边框就可以实现拖动改变大小的功能,但是有些场景要自定义程序系统的标题栏,要将系统自带的边框标题栏隐藏掉,设置为frameless形式,这时候就要自定义实现窗口边框的拖动改变大小;
实现思路
(1)将主窗口按照从上到下分为1、2、3,从左到右分为1、2、3,这样就变成了一个九宫格;鼠标在外层边缘区域时,鼠标自动变为双向箭头的形式,而且在各个区域的鼠标箭头方向也不一样。可以拖动边框改变大小,在其他区域时鼠标是正常的小箭头图标;
(2)根据鼠标在不同的区域是否按下,并且根据按下的相对位移重新计算窗口的大小,然后resize窗口的大小
2.实现步骤
头文件定义变量和函数
#ifndef FULIYEPERIOD_H #define FULIYEPERIOD_H #include <QtWidgets/QMainWindow> #include "ui_dftAnalyze.h" #include"NGraph.hpp" #include <QAxObject> #define FRAMESHAPE 10 enum { TOPLEFT = 11, TOP = 12, TOPRIGHT = 13, LEFT = 21, CENTER = 22, RIGHT = 23, BUTTOMLEFT = 31, BUTTOM = 32, BUTTOMRIGHT = 33 }; class FuliyePeriod : public QMainWindow { Q_OBJECT public: FuliyePeriod(QWidget *parent = 0); ~FuliyePeriod(); void mousePressEvent(QMouseEvent *event); void mouseReleaseEvent(QMouseEvent *event); void mouseDoubleClickEvent(QMouseEvent *event); void mouseMoveEvent(QMouseEvent *event); int CalCursorCol(QPoint pt); //个位计算鼠标X的在1,2,3哪个区域位置位置 int CalCursorPos(QPoint pt, int colPos); //用十位表示y在1,2,3哪个区域的位置 void setCursorShape(int CalPos); //设置鼠标对应位置11,12,13,21,22,23,31,32,33设置鼠标的形状 private: Ui::FlyAnalyze ui;int m_iCalCursorPos; bool m_bLeftPress; QRect m_rtPreGeometry; QPoint m_ptViewMousePos; }; #endif // FULIYEPERIOD_H
源文件实现函数
void FuliyePeriod::mousePressEvent(QMouseEvent * event) { QPoint pos2 = QCursor::pos(); pos2 = this->mapFromGlobal(QCursor().pos());//全局坐标转换为主窗口的相对坐标 m_iCalCursorPos = CalCursorPos(pos2, CalCursorCol(pos2)); if (event->button() == Qt::LeftButton /*&& Qt::WindowMaximized != windowState()*/) { if (m_iCalCursorPos != CENTER) { m_bLeftPress = true; } } m_rtPreGeometry = geometry(); m_ptViewMousePos = event->globalPos(); } void FuliyePeriod::mouseMoveEvent(QMouseEvent *event) { //窗体不是最大的话就改变鼠标的形状 QPoint pos2 = QCursor::pos(); pos2 = this->mapFromGlobal(QCursor().pos()); if (Qt::WindowMaximized != windowState()) { setCursorShape(CalCursorPos(pos2, CalCursorCol(pos2))); } //获取当前的点,这个点是全局的 QPoint ptCurrentPos = QCursor::pos(); //计算出移动的位置,当前点 - 鼠标左键按下的点 QPoint ptMoveSize = ptCurrentPos - m_ptViewMousePos; QRect rtTempGeometry = m_rtPreGeometry; if (m_bLeftPress) { switch (m_iCalCursorPos) { case TOPLEFT: rtTempGeometry.setTopLeft(m_rtPreGeometry.topLeft() + ptMoveSize); break; case TOP: rtTempGeometry.setTop(m_rtPreGeometry.top() + ptMoveSize.y()); break; case TOPRIGHT: rtTempGeometry.setTopRight(m_rtPreGeometry.topRight() + ptMoveSize); break; case LEFT: rtTempGeometry.setLeft(m_rtPreGeometry.left() + ptMoveSize.x()); break; case RIGHT: rtTempGeometry.setRight(m_rtPreGeometry.right() + ptMoveSize.x()); break; case BUTTOMLEFT: rtTempGeometry.setBottomLeft(m_rtPreGeometry.bottomLeft() + ptMoveSize); break; case BUTTOM: rtTempGeometry.setBottom(m_rtPreGeometry.bottom() + ptMoveSize.y()); break; case BUTTOMRIGHT: rtTempGeometry.setBottomRight(m_rtPreGeometry.bottomRight() + ptMoveSize); break; default: break; } //移动窗体,如果比最小窗体大,就移动 if (rtTempGeometry.width() >= 200 && rtTempGeometry.height() >= 300) setGeometry(rtTempGeometry); } } void FuliyePeriod::mouseReleaseEvent(QMouseEvent * event) { m_bLeftPress = false; QApplication::restoreOverrideCursor(); }
3.参考文献,修改了一些缺陷;
https://blog.csdn.net/weixin_40222745/article/details/82142333
#ifndef FULIYEPERIOD_H#define FULIYEPERIOD_H
#include <QtWidgets/QMainWindow>#include "ui_dftAnalyze.h"#include"NGraph.hpp"#include <QAxObject>
#define FRAMESHAPE 10 enum {TOPLEFT = 11,TOP = 12,TOPRIGHT = 13,LEFT = 21,CENTER = 22,RIGHT = 23,BUTTOMLEFT = 31,BUTTOM = 32,BUTTOMRIGHT = 33};
class FuliyePeriod : public QMainWindow{Q_OBJECT
public:FuliyePeriod(QWidget *parent = 0);~FuliyePeriod();//int dftAnalyzeStock(QString strCode);//void mousePressEvent(QMouseEvent *event);//void mouseReleaseEvent(QMouseEvent *event);//void mouseDoubleClickEvent(QMouseEvent *event);void mousePressEvent(QMouseEvent *event);void mouseReleaseEvent(QMouseEvent *event);void mouseDoubleClickEvent(QMouseEvent *event);void mouseMoveEvent(QMouseEvent *event);int CalCursorCol(QPoint pt); //个位计算鼠标X的在1,2,3哪个区域位置位置 int CalCursorPos(QPoint pt, int colPos); //用十位表示y在1,2,3哪个区域的位置void setCursorShape(int CalPos); //设置鼠标对应位置11,12,13,21,22,23,31,32,33设置鼠标的形状//void showEvent(QShowEvent *e);public slots:void dftAnalyzeStock();void InputExcelData();void SlotWaringDialog(int errorcode, QString strContent);private:Ui::FlyAnalyze ui;NGraph m_original;NGraph* m_graph = NULL;int m_topN = 5;QString m_strCode;QFrame m_lineVertival;QString m_defalutPath = "";bool m_leftMousePressed=false;QPoint m_StartPoint;int m_iCalCursorPos;bool m_bLeftPress;QRect m_rtPreGeometry;QPoint m_ptViewMousePos;};
#endif // FULIYEPERIOD_H
标签:rtPreGeometry,QT,自定义,拖动,void,QMouseEvent,int,rtTempGeometry,event 来源: https://www.cnblogs.com/bclshuai/p/16214529.html
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