新增控件

2019-10-10 14:06:42 +08:00
parent 315f102884
commit 959f4a972e
16 changed files with 986 additions and 0 deletions
--- a/framelesswidget/framelesswidget.cpp
+++ b/framelesswidget/framelesswidget.cpp
@@ -0,0 +1,191 @@
+#include "framelesswidget.h"
+#include "qevent.h"
+#include "qdebug.h"
+
+FramelessWidget::FramelessWidget(QObject *parent) : QObject(parent)
+{
+    padding = 8;
+    widget = 0;
+
+    pressed = false;
+    pressedLeft = false;
+    pressedRight = false;
+    pressedTop = false;
+    pressedBottom = false;
+    pressedLeftTop = false;
+    pressedRightTop = false;
+    pressedLeftBottom = false;
+    pressedRightBottom = false;
+
+    //如果父类是窗体则直接设置
+    if (parent->isWidgetType()) {
+        setWidget((QWidget *)parent);
+    }
+}
+
+bool FramelessWidget::eventFilter(QObject *watched, QEvent *event)
+{
+    if (widget != 0 && watched == widget) {
+        if (event->type() == QEvent::Resize) {
+            //重新计算八个描点的区域,描点区域的作用还有就是计算鼠标坐标是否在某一个区域内
+            int width = widget->width();
+            int height = widget->height();
+
+            //左侧描点区域
+            rectLeft = QRectF(0, padding, padding, height - padding * 2);
+            //上侧描点区域
+            rectTop = QRectF(padding, 0, width - padding * 2, padding);
+            //右侧描点区域
+            rectRight = QRectF(width - padding, padding, padding, height - padding * 2);
+            //下侧描点区域
+            rectBottom = QRectF(padding, height - padding, width - padding * 2, padding);
+
+            //左上角描点区域
+            rectLeftTop = QRectF(0, 0, padding, padding);
+            //右上角描点区域
+            rectRightTop = QRectF(width - padding, 0, padding, padding);
+            //左下角描点区域
+            rectLeftBottom = QRectF(0, height - padding, padding, padding);
+            //右下角描点区域
+            rectRightBottom = QRectF(width - padding, height - padding, padding, padding);
+        } else {
+            QMouseEvent *mouseEvent = (QMouseEvent *)event;
+            if (event->type() == QEvent::MouseButtonPress) {
+                //记住当前控件坐标和宽高以及鼠标按下的坐标
+                rectX = widget->x();
+                rectY = widget->y();
+                rectW = widget->width();
+                rectH = widget->height();
+                lastPos = mouseEvent->pos();
+
+                //判断按下的手柄的区域位置
+                if (rectLeft.contains(lastPos)) {
+                    pressedLeft = true;
+                } else if (rectRight.contains(lastPos)) {
+                    pressedRight = true;
+                } else if (rectTop.contains(lastPos)) {
+                    pressedTop = true;
+                } else if (rectBottom.contains(lastPos)) {
+                    pressedBottom = true;
+                } else if (rectLeftTop.contains(lastPos)) {
+                    pressedLeftTop = true;
+                } else if (rectRightTop.contains(lastPos)) {
+                    pressedRightTop = true;
+                } else if (rectLeftBottom.contains(lastPos)) {
+                    pressedLeftBottom = true;
+                } else if (rectRightBottom.contains(lastPos)) {
+                    pressedRightBottom = true;
+                } else {
+                    pressed = true;
+                }
+            } else if (event->type() == QEvent::MouseMove) {
+                //设置对应鼠标形状
+                QPoint point = mouseEvent->pos();
+                if (rectLeft.contains(point)) {
+                    widget->setCursor(Qt::SizeHorCursor);
+                } else if (rectRight.contains(point)) {
+                    widget->setCursor(Qt::SizeHorCursor);
+                } else if (rectTop.contains(point)) {
+                    widget->setCursor(Qt::SizeVerCursor);
+                } else if (rectBottom.contains(point)) {
+                    widget->setCursor(Qt::SizeVerCursor);
+                } else if (rectLeftTop.contains(point)) {
+                    widget->setCursor(Qt::SizeFDiagCursor);
+                } else if (rectRightTop.contains(point)) {
+                    widget->setCursor(Qt::SizeBDiagCursor);
+                } else if (rectLeftBottom.contains(point)) {
+                    widget->setCursor(Qt::SizeBDiagCursor);
+                } else if (rectRightBottom.contains(point)) {
+                    widget->setCursor(Qt::SizeFDiagCursor);
+                } else {
+                    widget->setCursor(Qt::ArrowCursor);
+                }
+
+                //根据当前鼠标位置,计算XY轴移动了多少
+                QPoint pos = mouseEvent->pos();
+                int dx = pos.x() - lastPos.x();
+                int dy = pos.y() - lastPos.y();
+
+                //根据按下处的位置判断是否是移动控件还是拉伸控件
+                if (pressed) {
+                    widget->move(widget->x() + dx, widget->y() + dy);
+                } else if (pressedLeft) {
+                    int resizeW = widget->width() - dx;
+                    if (widget->minimumWidth() <= resizeW) {
+                        widget->setGeometry(widget->x() + dx, rectY, resizeW, rectH);
+                    }
+                } else if (pressedRight) {
+                    widget->setGeometry(rectX, rectY, rectW + dx, rectH);
+                } else if (pressedTop) {
+                    int resizeH = widget->height() - dy;
+                    if (widget->minimumHeight() <= resizeH) {
+                        widget->setGeometry(rectX, widget->y() + dy, rectW, resizeH);
+                    }
+                } else if (pressedBottom) {
+                    widget->setGeometry(rectX, rectY, rectW, rectH + dy);
+                } else if (pressedLeftTop) {
+                    int resizeW = widget->width() - dx;
+                    int resizeH = widget->height() - dy;
+                    if (widget->minimumWidth() <= resizeW) {
+                        widget->setGeometry(widget->x() + dx, widget->y(), resizeW, resizeH);
+                    }
+                    if (widget->minimumHeight() <= resizeH) {
+                        widget->setGeometry(widget->x(), widget->y() + dy, resizeW, resizeH);
+                    }
+                } else if (pressedRightTop) {
+                    int resizeW = rectW + dx;
+                    int resizeH = widget->height() - dy;
+                    if (widget->minimumHeight() <= resizeH) {
+                        widget->setGeometry(widget->x(), widget->y() + dy, resizeW, resizeH);
+                    }
+                } else if (pressedLeftBottom) {
+                    int resizeW = widget->width() - dx;
+                    int resizeH = rectH + dy;
+                    if (widget->minimumWidth() <= resizeW) {
+                        widget->setGeometry(widget->x() + dx, widget->y(), resizeW, resizeH);
+                    }
+                    if (widget->minimumHeight() <= resizeH) {
+                        widget->setGeometry(widget->x(), widget->y(), resizeW, resizeH);
+                    }
+                } else if (pressedRightBottom) {
+                    int resizeW = rectW + dx;
+                    int resizeH = rectH + dy;
+                    widget->setGeometry(widget->x(), widget->y(), resizeW, resizeH);
+                }
+            } else if (event->type() == QEvent::MouseButtonRelease) {
+                //恢复所有
+                pressed = false;
+                pressedLeft = false;
+                pressedRight = false;
+                pressedTop = false;
+                pressedBottom = false;
+                pressedLeftTop = false;
+                pressedRightTop = false;
+                pressedLeftBottom = false;
+                pressedRightBottom = false;
+                widget->setCursor(Qt::ArrowCursor);
+            }
+        }
+    }
+
+    return QObject::eventFilter(watched, event);
+}
+
+void FramelessWidget::setPadding(int padding)
+{
+    this->padding = padding;
+}
+
+void FramelessWidget::setWidget(QWidget *widget)
+{
+    if (this->widget == 0) {
+        this->widget = widget;
+        //设置鼠标追踪为真
+        this->widget->setMouseTracking(true);
+        //绑定事件过滤器
+        this->widget->installEventFilter(this);
+        //设置无边框属性
+        this->widget->setWindowFlags(Qt::FramelessWindowHint);
+        //this->widget->setWindowFlags(Qt::FramelessWindowHint | Qt::WindowSystemMenuHint | Qt::WindowMinMaxButtonsHint);
+    }
+}
--- a/framelesswidget/framelesswidget.h
+++ b/framelesswidget/framelesswidget.h
@@ -0,0 +1,66 @@
+#ifndef FRAMELESSWIDGET_H
+#define FRAMELESSWIDGET_H
+
+/**
+ * 无边框窗体类 作者:feiyangqingyun(QQ:517216493) 2019-10-03
+ * 1:可以指定需要无边框的widget
+ * 2:边框四周八个方位都可以自由拉伸
+ * 3:可设置对应位置的边距,以便识别更大区域
+ */
+
+#include <QWidget>
+
+#ifdef quc
+#if (QT_VERSION < QT_VERSION_CHECK(5,7,0))
+#include <QtDesigner/QDesignerExportWidget>
+#else
+#include <QtUiPlugin/QDesignerExportWidget>
+#endif
+
+class QDESIGNER_WIDGET_EXPORT FramelessWidget : public QObject
+#else
+class FramelessWidget : public QObject
+#endif
+
+{
+    Q_OBJECT
+public:
+    explicit FramelessWidget(QObject *parent = 0);
+
+protected:
+    bool eventFilter(QObject *watched, QEvent *event);
+
+private:
+    int padding;                    //边距
+    QWidget *widget;                //无边框窗体
+
+    bool pressed;                   //鼠标按下
+    bool pressedLeft;               //鼠标按下左侧
+    bool pressedRight;              //鼠标按下右侧
+    bool pressedTop;                //鼠标按下上侧
+    bool pressedBottom;             //鼠标按下下侧
+    bool pressedLeftTop;            //鼠标按下左上侧
+    bool pressedRightTop;           //鼠标按下右上侧
+    bool pressedLeftBottom;         //鼠标按下左下侧
+    bool pressedRightBottom;        //鼠标按下右下侧
+
+    int rectX, rectY, rectW, rectH; //窗体坐标+宽高
+    QPoint lastPos;                 //鼠标按下处坐标
+
+    QRectF rectLeft;                //左侧区域
+    QRectF rectRight;               //右侧区域
+    QRectF rectTop;                 //上侧区域
+    QRectF rectBottom;              //下侧区域
+    QRectF rectLeftTop;             //左上侧区域
+    QRectF rectRightTop;            //右上侧区域
+    QRectF rectLeftBottom;          //左下侧区域
+    QRectF rectRightBottom;         //右下侧区域
+
+public Q_SLOTS:
+    //设置边距
+    void setPadding(int padding);
+    //设置要无边框的窗体
+    void setWidget(QWidget *widget);
+};
+
+#endif // FRAMELESSWIDGET_H
--- a/framelesswidget/framelesswidget.pro
+++ b/framelesswidget/framelesswidget.pro
@@ -0,0 +1,23 @@
+#-------------------------------------------------
+#
+# Project created by QtCreator 2019-10-03T10:55:58
+#
+#-------------------------------------------------
+
+QT       += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+TARGET      = framelesswidget
+TEMPLATE    = app
+DESTDIR     = $$PWD/../bin
+CONFIG      += warn_off
+
+SOURCES     += main.cpp
+SOURCES     += frmframelesswidget.cpp
+SOURCES     += framelesswidget.cpp
+
+HEADERS     += frmframelesswidget.h
+HEADERS     += framelesswidget.h
+
+FORMS       += frmframelesswidget.ui
--- a/framelesswidget/frmframelesswidget.cpp
+++ b/framelesswidget/frmframelesswidget.cpp
@@ -0,0 +1,38 @@
+#pragma execution_character_set("utf-8")
+
+#include "frmframelesswidget.h"
+#include "ui_frmframelesswidget.h"
+#include "qpushbutton.h"
+#include "framelesswidget.h"
+
+frmFramelessWidget::frmFramelessWidget(QWidget *parent) : QWidget(parent), ui(new Ui::frmFramelessWidget)
+{
+    ui->setupUi(this);
+}
+
+frmFramelessWidget::~frmFramelessWidget()
+{
+    delete ui;
+}
+
+void frmFramelessWidget::on_btnOpen_clicked()
+{
+    QWidget *w = new QWidget;
+    w->setAttribute(Qt::WA_DeleteOnClose);
+    w->setWindowTitle("自由拉伸无边框窗体");
+    w->resize(480, 320);
+
+    //设置下背景颜色区别看
+    QPalette palette = w->palette();
+    palette.setBrush(QPalette::Background, QColor(162, 121, 197));
+    w->setPalette(palette);
+
+    QPushButton *btn = new QPushButton(w);
+    connect(btn, SIGNAL(clicked(bool)), w, SLOT(close()));
+    btn->setGeometry(10, 10, 100, 25);
+    btn->setText("关闭");
+
+    FramelessWidget *f = new FramelessWidget(w);
+    f->setWidget(w);
+    w->show();
+}
--- a/framelesswidget/frmframelesswidget.h
+++ b/framelesswidget/frmframelesswidget.h
@@ -0,0 +1,26 @@
+#ifndef FRMFRAMELESSWIDGET_H
+#define FRMFRAMELESSWIDGET_H
+
+#include <QWidget>
+
+namespace Ui
+{
+    class frmFramelessWidget;
+}
+
+class frmFramelessWidget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit frmFramelessWidget(QWidget *parent = 0);
+    ~frmFramelessWidget();
+
+private:
+    Ui::frmFramelessWidget *ui;
+
+private slots:
+    void on_btnOpen_clicked();
+};
+
+#endif // FRMFRAMELESSWIDGET_H
--- a/framelesswidget/frmframelesswidget.ui
+++ b/framelesswidget/frmframelesswidget.ui
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>frmFramelessWidget</class>
+ <widget class="QWidget" name="frmFramelessWidget">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>500</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <widget class="QPushButton" name="btnOpen">
+   <property name="geometry">
+    <rect>
+     <x>10</x>
+     <y>10</y>
+     <width>181</width>
+     <height>23</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>弹窗无边框窗体</string>
+   </property>
+  </widget>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
--- a/framelesswidget/main.cpp
+++ b/framelesswidget/main.cpp
@@ -0,0 +1,31 @@
+#pragma execution_character_set("utf-8")
+
+#include "frmframelesswidget.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
+
+    frmFramelessWidget w;
+    w.setWindowTitle("无边框窗体类");
+    w.show();
+
+    return a.exec();
+}