彻底改版2.0

widget/movewidget/frmmovewidget.cpp

@@ -0,0 +1,41 @@
+#pragma execution_character_set("utf-8")
+
+#include "frmmovewidget.h"
+#include "ui_frmmovewidget.h"
+#include "qpushbutton.h"
+#include "qprogressbar.h"
+#include "movewidget.h"
+
+frmMoveWidget::frmMoveWidget(QWidget *parent) : QWidget(parent), ui(new Ui::frmMoveWidget)
+{
+    ui->setupUi(this);
+    this->initForm();
+}
+
+frmMoveWidget::~frmMoveWidget()
+{
+    delete ui;
+}
+
+void frmMoveWidget::initForm()
+{
+    QPushButton *btn1 = new QPushButton(this);
+    btn1->setGeometry(10, 10, 250, 25);
+    btn1->setText("按住我拖动(仅限左键拖动)");
+    MoveWidget *moveWidget1 = new MoveWidget(this);
+    moveWidget1->setWidget(btn1);
+
+    QPushButton *btn2 = new QPushButton(this);
+    btn2->setGeometry(10, 40, 250, 25);
+    btn2->setText("按住我拖动(支持右键拖动)");
+    MoveWidget *moveWidget2 = new MoveWidget(this);
+    moveWidget2->setWidget(btn2);
+    moveWidget2->setLeftButton(false);
+
+    QProgressBar *bar = new QProgressBar(this);
+    bar->setGeometry(10, 70, 250, 25);
+    bar->setRange(0, 0);
+    bar->setTextVisible(false);
+    MoveWidget *moveWidget3 = new MoveWidget(this);
+    moveWidget3->setWidget(bar);
+}

widget/movewidget/frmmovewidget.h

@@ -0,0 +1,25 @@
+#ifndef FRMMOVEWIDGET_H
+#define FRMMOVEWIDGET_H
+
+#include <QWidget>
+
+namespace Ui {
+class frmMoveWidget;
+}
+
+class frmMoveWidget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit frmMoveWidget(QWidget *parent = 0);
+    ~frmMoveWidget();
+
+private:
+    Ui::frmMoveWidget *ui;
+
+private slots:
+    void initForm();
+};
+
+#endif // FRMMOVEWIDGET_H

widget/movewidget/frmmovewidget.ui

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>frmMoveWidget</class>
+ <widget class="QWidget" name="frmMoveWidget">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>800</width>
+    <height>600</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

widget/movewidget/main.cpp

@@ -0,0 +1,31 @@
+#pragma execution_character_set("utf-8")
+
+#include "frmmovewidget.h"
+#include <QApplication>
+#include <QTextCodec>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    a.setFont(QFont("Microsoft Yahei", 9));
+
+#if (QT_VERSION < QT_VERSION_CHECK(5,0,0))
+#if _MSC_VER
+    QTextCodec *codec = QTextCodec::codecForName("gbk");
+#else
+    QTextCodec *codec = QTextCodec::codecForName("utf-8");
+#endif
+    QTextCodec::setCodecForLocale(codec);
+    QTextCodec::setCodecForCStrings(codec);
+    QTextCodec::setCodecForTr(codec);
+#else
+    QTextCodec *codec = QTextCodec::codecForName("utf-8");
+    QTextCodec::setCodecForLocale(codec);
+#endif
+
+    frmMoveWidget w;
+    w.setWindowTitle("通用移动类");
+    w.show();
+
+    return a.exec();
+}

widget/movewidget/movewidget.cpp

@@ -0,0 +1,74 @@
+#include "movewidget.h"
+#include "qevent.h"
+#include "qdebug.h"
+
+MoveWidget::MoveWidget(QObject *parent) : QObject(parent)
+{
+    lastPoint = QPoint(0, 0);
+    pressed = false;
+    leftButton = true;
+    inControl = true;
+    widget = 0;
+}
+
+bool MoveWidget::eventFilter(QObject *watched, QEvent *event)
+{
+    if (widget != 0 && watched == widget) {
+        QMouseEvent *mouseEvent = (QMouseEvent *)event;
+        if (mouseEvent->type() == QEvent::MouseButtonPress) {
+            //如果限定了只能鼠标左键拖动则判断当前是否是鼠标左键
+            if (leftButton && mouseEvent->button() != Qt::LeftButton) {
+                return false;
+            }
+
+            //判断控件的区域是否包含了当前鼠标的坐标
+            if (widget->rect().contains(mouseEvent->pos())) {
+                lastPoint = mouseEvent->pos();
+                pressed = true;
+            }
+        } else if (mouseEvent->type() == QEvent::MouseMove && pressed) {
+            //计算坐标偏移值,调用move函数移动过去
+            int offsetX = mouseEvent->pos().x() - lastPoint.x();
+            int offsetY = mouseEvent->pos().y() - lastPoint.y();
+            int x = widget->x() + offsetX;
+            int y = widget->y() + offsetY;
+            if (inControl) {
+                //可以自行调整限定在容器中的范围,这里默认保留20个像素在里面
+                int offset = 20;
+                bool xyOut = (x + widget->width() < offset || y + widget->height() < offset);
+                bool whOut = false;
+                QWidget *w = (QWidget *)widget->parent();
+                if (w != 0) {
+                    whOut = (w->width() - x < offset || w->height() - y < offset);
+                }
+                if (xyOut || whOut) {
+                    return false;
+                }
+            }
+
+            widget->move(x, y);
+        } else if (mouseEvent->type() == QEvent::MouseButtonRelease && pressed) {
+            pressed = false;
+        }
+    }
+
+    return QObject::eventFilter(watched, event);
+}
+
+void MoveWidget::setLeftButton(bool leftButton)
+{
+    this->leftButton = leftButton;
+}
+
+void MoveWidget::setInControl(bool inControl)
+{
+    this->inControl = inControl;
+}
+
+void MoveWidget::setWidget(QWidget *widget)
+{
+    if (this->widget == 0) {
+        this->widget = widget;
+        this->widget->installEventFilter(this);
+    }
+}

widget/movewidget/movewidget.h

@@ -0,0 +1,43 @@
+#ifndef MOVEWIDGET_H
+#define MOVEWIDGET_H
+
+/**
+ * 通用控件移动类 作者:feiyangqingyun(QQ:517216493) 2019-09-28
+ * 1. 可以指定需要移动的widget。
+ * 2. 可设置是否限定鼠标左键拖动。
+ * 3. 支持任意widget控件。
+ */
+
+#include <QWidget>
+
+#ifdef quc
+class Q_DECL_EXPORT MoveWidget : public QObject
+#else
+class MoveWidget : public QObject
+#endif
+
+{
+    Q_OBJECT
+public:
+    explicit MoveWidget(QObject *parent = 0);
+
+protected:
+    bool eventFilter(QObject *watched, QEvent *event);
+
+private:
+    QPoint lastPoint;   //最后按下的坐标
+    bool pressed;       //鼠标是否按下
+    bool leftButton;    //限定鼠标左键
+    bool inControl;     //限定在容器内
+    QWidget *widget;    //移动的控件
+
+public Q_SLOTS:
+    //设置是否限定鼠标左键
+    void setLeftButton(bool leftButton);
+    //设置是否限定不能移出容器外面
+    void setInControl(bool inControl);
+    //设置要移动的控件
+    void setWidget(QWidget *widget);
+};
+
+#endif // MOVEWIDGET_H

widget/movewidget/movewidget.pro

@@ -0,0 +1,17 @@
+QT += core gui
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+greaterThan(QT_MAJOR_VERSION, 5): QT += core5compat
+
+TARGET      = movewidget
+TEMPLATE    = app
+DESTDIR     = $$PWD/../bin
+CONFIG      += warn_off
+
+SOURCES     += main.cpp
+SOURCES     += frmmovewidget.cpp
+SOURCES     += movewidget.cpp
+
+HEADERS     += frmmovewidget.h
+HEADERS     += movewidget.h
+
+FORMS       += frmmovewidget.ui