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更新代码

master
feiyangqingyun 2021-07-05 17:56:20 +08:00
parent 0b00d34587
commit b7647f0b44
7 changed files with 219 additions and 134 deletions
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157
framelesswidget/framelesswidget.cpp
View File

@ -9,15 +9,14 @@ FramelessWidget::FramelessWidget(QObject *parent) : QObject(parent)
resizeEnable = true;
widget = 0;
pressed = false;
pressedLeft = false;
pressedRight = false;
pressedTop = false;
pressedBottom = false;
pressedLeftTop = false;
pressedRightTop = false;
pressedLeftBottom = false;
pressedRightBottom = false;
mousePressed = false;
mousePoint = QPoint(0, 0);
mouseRect = QRect(0, 0, 0, 0);
for (int i = 0; i < 8; ++i) {
pressedArea << false;
pressedRect << QRect(0, 0, 0, 0);
}
//如果父类是窗体则直接设置
if (parent->isWidgetType()) {
@ -28,48 +27,62 @@ FramelessWidget::FramelessWidget(QObject *parent) : QObject(parent)
bool FramelessWidget::eventFilter(QObject *watched, QEvent *event)
{
if (widget != 0 && watched == widget) {
if (event->type() == QEvent::Resize) {
if (event->type() == QEvent::WindowStateChange) {
//解决mac系统上无边框最小化失效的BUG
#ifdef Q_OS_MACOS
if (widget->windowState() & Qt::WindowMinimized) {
isMin = true;
} else {
if (isMin) {
//设置无边框属性
widget->setWindowFlags(flags | Qt::FramelessWindowHint);
widget->setVisible(true);
isMin = false;
}
}
#endif
} else 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 = QRect(0, padding, padding, height - padding * 2);
//上侧描点区域
rectTop = QRect(padding, 0, width - padding * 2, padding);
pressedRect[0] = QRect(0, padding, padding, height - padding * 2);
//右侧描点区域
rectRight = QRect(width - padding, padding, padding, height - padding * 2);
pressedRect[1] = QRect(width - padding, padding, padding, height - padding * 2);
//上侧描点区域
pressedRect[2] = QRect(padding, 0, width - padding * 2, padding);
//下侧描点区域
rectBottom = QRect(padding, height - padding, width - padding * 2, padding);
pressedRect[3] = QRect(padding, height - padding, width - padding * 2, padding);
//左上角描点区域
rectLeftTop = QRect(0, 0, padding, padding);
pressedRect[4] = QRect(0, 0, padding, padding);
//右上角描点区域
rectRightTop = QRect(width - padding, 0, padding, padding);
pressedRect[5] = QRect(width - padding, 0, padding, padding);
//左下角描点区域
rectLeftBottom = QRect(0, height - padding, padding, padding);
pressedRect[6] = QRect(0, height - padding, padding, padding);
//右下角描点区域
rectRightBottom = QRect(width - padding, height - padding, padding, padding);
pressedRect[7] = QRect(width - padding, height - padding, padding, padding);
} else if (event->type() == QEvent::HoverMove) {
//设置对应鼠标形状,这个必须放在这里而不是下面,因为可以在鼠标没有按下的时候识别
QHoverEvent *hoverEvent = (QHoverEvent *)event;
QPoint point = hoverEvent->pos();
if (resizeEnable) {
if (rectLeft.contains(point)) {
if (pressedRect.at(0).contains(point)) {
widget->setCursor(Qt::SizeHorCursor);
} else if (rectRight.contains(point)) {
} else if (pressedRect.at(1).contains(point)) {
widget->setCursor(Qt::SizeHorCursor);
} else if (rectTop.contains(point)) {
} else if (pressedRect.at(2).contains(point)) {
widget->setCursor(Qt::SizeVerCursor);
} else if (rectBottom.contains(point)) {
} else if (pressedRect.at(3).contains(point)) {
widget->setCursor(Qt::SizeVerCursor);
} else if (rectLeftTop.contains(point)) {
} else if (pressedRect.at(4).contains(point)) {
widget->setCursor(Qt::SizeFDiagCursor);
} else if (rectRightTop.contains(point)) {
} else if (pressedRect.at(5).contains(point)) {
widget->setCursor(Qt::SizeBDiagCursor);
} else if (rectLeftBottom.contains(point)) {
} else if (pressedRect.at(6).contains(point)) {
widget->setCursor(Qt::SizeBDiagCursor);
} else if (rectRightBottom.contains(point)) {
} else if (pressedRect.at(7).contains(point)) {
widget->setCursor(Qt::SizeFDiagCursor);
} else {
widget->setCursor(Qt::ArrowCursor);
@ -77,32 +90,35 @@ bool FramelessWidget::eventFilter(QObject *watched, QEvent *event)
}
//根据当前鼠标位置,计算XY轴移动了多少
int offsetX = point.x() - lastPos.x();
int offsetY = point.y() - lastPos.y();
int offsetX = point.x() - mousePoint.x();
int offsetY = point.y() - mousePoint.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 (moveEnable) {
if (pressed) {
widget->move(widget->x() + offsetX, widget->y() + offsetY);
}
if (moveEnable && mousePressed) {
widget->move(widget->x() + offsetX, widget->y() + offsetY);
}
if (resizeEnable) {
if (pressedLeft) {
int rectX = mouseRect.x();
int rectY = mouseRect.y();
int rectW = mouseRect.width();
int rectH = mouseRect.height();
if (pressedArea.at(0)) {
int resizeW = widget->width() - offsetX;
if (widget->minimumWidth() <= resizeW) {
widget->setGeometry(widget->x() + offsetX, rectY, resizeW, rectH);
}
} else if (pressedRight) {
} else if (pressedArea.at(1)) {
widget->setGeometry(rectX, rectY, rectW + offsetX, rectH);
} else if (pressedTop) {
} else if (pressedArea.at(2)) {
int resizeH = widget->height() - offsetY;
if (widget->minimumHeight() <= resizeH) {
widget->setGeometry(rectX, widget->y() + offsetY, rectW, resizeH);
}
} else if (pressedBottom) {
} else if (pressedArea.at(3)) {
widget->setGeometry(rectX, rectY, rectW, rectH + offsetY);
} else if (pressedLeftTop) {
} else if (pressedArea.at(4)) {
int resizeW = widget->width() - offsetX;
int resizeH = widget->height() - offsetY;
if (widget->minimumWidth() <= resizeW) {
@ -111,13 +127,13 @@ bool FramelessWidget::eventFilter(QObject *watched, QEvent *event)
if (widget->minimumHeight() <= resizeH) {
widget->setGeometry(widget->x(), widget->y() + offsetY, resizeW, resizeH);
}
} else if (pressedRightTop) {
} else if (pressedArea.at(5)) {
int resizeW = rectW + offsetX;
int resizeH = widget->height() - offsetY;
if (widget->minimumHeight() <= resizeH) {
widget->setGeometry(widget->x(), widget->y() + offsetY, resizeW, resizeH);
}
} else if (pressedLeftBottom) {
} else if (pressedArea.at(6)) {
int resizeW = widget->width() - offsetX;
int resizeH = rectH + offsetY;
if (widget->minimumWidth() <= resizeW) {
@ -126,55 +142,47 @@ bool FramelessWidget::eventFilter(QObject *watched, QEvent *event)
if (widget->minimumHeight() <= resizeH) {
widget->setGeometry(widget->x(), widget->y(), resizeW, resizeH);
}
} else if (pressedRightBottom) {
} else if (pressedArea.at(7)) {
int resizeW = rectW + offsetX;
int resizeH = rectH + offsetY;
widget->setGeometry(widget->x(), widget->y(), resizeW, resizeH);
}
}
} else 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
//记住鼠标按下的坐标+窗体区域
QMouseEvent *mouseEvent = (QMouseEvent *)event;
rectX = widget->x();
rectY = widget->y();
rectW = widget->width();
rectH = widget->height();
lastPos = mouseEvent->pos();
mousePoint = mouseEvent->pos();
mouseRect = widget->geometry();
//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;
if (pressedRect.at(0).contains(mousePoint)) {
pressedArea[0] = true;
} else if (pressedRect.at(1).contains(mousePoint)) {
pressedArea[1] = true;
} else if (pressedRect.at(2).contains(mousePoint)) {
pressedArea[2] = true;
} else if (pressedRect.at(3).contains(mousePoint)) {
pressedArea[3] = true;
} else if (pressedRect.at(4).contains(mousePoint)) {
pressedArea[4] = true;
} else if (pressedRect.at(5).contains(mousePoint)) {
pressedArea[5] = true;
} else if (pressedRect.at(6).contains(mousePoint)) {
pressedArea[6] = true;
} else if (pressedRect.at(7).contains(mousePoint)) {
pressedArea[7] = true;
} else {
pressed = true;
mousePressed = true;
}
} else if (event->type() == QEvent::MouseMove) {
//改成用HoverMove识别
} 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);
mousePressed = false;
for (int i = 0; i < 8; ++i) {
pressedArea[i] = false;
}
}
}
@ -206,5 +214,8 @@ void FramelessWidget::setWidget(QWidget *widget)
this->widget->installEventFilter(this);
//设置悬停为真,必须设置这个,不然当父窗体里边还有子窗体全部遮挡了识别不到MouseMove,需要识别HoverMove
this->widget->setAttribute(Qt::WA_Hover, true);
isMin = false;
flags = widget->windowFlags();
}
}

42
framelesswidget/framelesswidget.h
View File

@ -27,32 +27,28 @@ protected:
bool eventFilter(QObject *watched, QEvent *event);
private:
int padding; //边距
bool moveEnable; //可移动
bool resizeEnable; //可拉伸
QWidget *widget; //无边框窗体
//边距+可移动+可拉伸
int padding;
bool moveEnable;
bool resizeEnable;
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
//无边框窗体
QWidget *widget;
int rectX, rectY, rectW, rectH; //窗体坐标+宽高
QPoint lastPos; //鼠标按下处坐标
//鼠标是否按下+按下坐标+按下时窗体区域
bool mousePressed;
QPoint mousePoint;
QRect mouseRect;
QRect rectLeft; //左侧区域
QRect rectRight; //右侧区域
QRect rectTop; //上侧区域
QRect rectBottom; //下侧区域
QRect rectLeftTop; //左上侧区域
QRect rectRightTop; //右上侧区域
QRect rectLeftBottom; //左下侧区域
QRect rectRightBottom; //右下侧区域
//鼠标是否按下某个区域+按下区域的大小
//依次为 左侧+右侧+上侧+下侧+左上侧+右上侧+左下侧+右下侧
QList<bool> pressedArea;
QList<QRect> pressedRect;
//记录是否最小化
bool isMin;
//存储窗体默认的属性
Qt::WindowFlags flags;
public Q_SLOTS:
//设置边距

114
framelesswidget/framelesswidget2.cpp
View File

@ -1,19 +1,28 @@
#include "framelesswidget2.h"
#include "qdatetime.h"
#include "qevent.h"
#include "qdebug.h"
#ifdef Q_OS_WIN
#include "windows.h"
#pragma comment (lib,"user32.lib")
#endif
#define TIMEMS qPrintable(QTime::currentTime().toString("HH:mm:ss zzz"))
FramelessWidget2::FramelessWidget2(QWidget *parent) : QWidget(parent)
{
padding = 5;
padding = 8;
moveEnable = true;
resizeEnable = true;
//安装事件过滤器识别拖动
this->installEventFilter(this);
}
bool FramelessWidget2::eventFilter(QObject *watched, QEvent *event)
{
if (watched == this) {
if (watched == this && moveEnable) {
static QPoint mousePoint;
static bool mousePressed = false;
@ -36,50 +45,91 @@ bool FramelessWidget2::eventFilter(QObject *watched, QEvent *event)
return QWidget::eventFilter(watched, event);
}
#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
bool FramelessWidget2::nativeEvent(const QByteArray &eventType, void *message, qintptr *result)
#else
bool FramelessWidget2::nativeEvent(const QByteArray &eventType, void *message, long *result)
#endif
{
if (eventType == "windows_generic_MSG") {
#ifdef Q_OS_WIN
MSG *msg = (MSG *)message;
switch (msg->message) {
case WM_NCHITTEST: {
QPoint pos = mapFromGlobal(QPoint(LOWORD(msg->lParam), HIWORD(msg->lParam)));
MSG *msg = static_cast<MSG *>(message);
//qDebug() << TIMEMS << "nativeEvent" << msg->wParam << msg->message;
//不同的消息类型和参数进行不同的处理
if (msg->message == WM_NCCALCSIZE) {
*result = 0;
return true;
} else if (msg->message == WM_NCHITTEST) {
//计算鼠标对应的屏幕坐标
long x = LOWORD(msg->lParam);
long y = HIWORD(msg->lParam);
QPoint pos = mapFromGlobal(QPoint(x, y));
//判断当前鼠标位置在哪个区域
bool left = pos.x() < padding;
bool right = pos.x() > width() - padding;
bool top = pos.y() < padding;
bool bottom = pos.y() > height() - padding;
if (left && top) {
*result = HTTOPLEFT;
} else if (left && bottom) {
*result = HTBOTTOMLEFT;
} else if (right && top) {
*result = HTTOPRIGHT;
} else if (right && bottom) {
*result = HTBOTTOMRIGHT;
} else if (left) {
*result = HTLEFT;
} else if (right) {
*result = HTRIGHT;
} else if (top) {
*result = HTTOP;
} else if (bottom) {
*result = HTBOTTOM;
} else {
return false;
}
return true;
}
break;
default:
break;
}
#endif
//鼠标移动到四个角,这个消息是当鼠标移动或者有鼠标键按下时候发出的
*result = 0;
if (resizeEnable) {
if (left && top) {
*result = HTTOPLEFT;
} else if (left && bottom) {
*result = HTBOTTOMLEFT;
} else if (right && top) {
*result = HTTOPRIGHT;
} else if (right && bottom) {
*result = HTBOTTOMRIGHT;
} else if (left) {
*result = HTLEFT;
} else if (right) {
*result = HTRIGHT;
} else if (top) {
*result = HTTOP;
} else if (bottom) {
*result = HTBOTTOM;
}
}
//先处理掉拉伸
if (0 != *result) {
return true;
}
}
#endif
} else if (eventType == "NSEvent") {
#ifdef Q_OS_MACOS
#endif
} else if (eventType == "xcb_generic_event_t") {
#ifdef Q_OS_LINUX
#endif
}
return false;
}
#if (QT_VERSION < QT_VERSION_CHECK(5,0,0))
#ifdef Q_OS_WIN
bool FramelessWidget2::winEvent(MSG *message, long *result)
{
return nativeEvent("windows_generic_MSG", message, result);
}
#endif
#endif
void FramelessWidget2::setPadding(int padding)
{
this->padding = padding;
}
void FramelessWidget2::setMoveEnable(bool moveEnable)
{
this->moveEnable = moveEnable;
}
void FramelessWidget2::setResizeEnable(bool resizeEnable)
{
this->resizeEnable = resizeEnable;
}

19
framelesswidget/framelesswidget2.h
View File

@ -16,13 +16,32 @@ public:
protected:
bool eventFilter(QObject *watched, QEvent *event);
//拦截系统事件用于修复系统休眠后唤醒程序的BUG
#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
bool nativeEvent(const QByteArray &eventType, void *message, qintptr *result);
#else
bool nativeEvent(const QByteArray &eventType, void *message, long *result);
#endif
//Qt4的写法
#if (QT_VERSION < QT_VERSION_CHECK(5,0,0))
#ifdef Q_OS_WIN
bool winEvent(MSG *message, long *result);
#endif
#endif
private:
//边距+可移动+可拉伸
int padding;
bool moveEnable;
bool resizeEnable;
public:
//设置边距+可拖动+可拉伸
void setPadding(int padding);
void setMoveEnable(bool moveEnable);
void setResizeEnable(bool resizeEnable);
};
#endif // FRAMELESSWIDGET2_H

16
framelesswidget/frmframelesswidget.cpp
View File

@ -11,8 +11,8 @@ frmFramelessWidget::frmFramelessWidget(QWidget *parent) : QWidget(parent), ui(ne
{
ui->setupUi(this);
widget1 = 0;
widget2 = 0;
frameless = 0;
frameless2 = 0;
}
frmFramelessWidget::~frmFramelessWidget()
@ -74,6 +74,9 @@ void frmFramelessWidget::stateChanged1(int arg1)
if (frameless != 0) {
frameless->setMoveEnable(arg1 != 0);
}
if (frameless2 != 0) {
frameless2->setMoveEnable(arg1 != 0);
}
}
void frmFramelessWidget::stateChanged2(int arg1)
@ -81,14 +84,17 @@ void frmFramelessWidget::stateChanged2(int arg1)
if (frameless != 0) {
frameless->setResizeEnable(arg1 != 0);
}
if (frameless2 != 0) {
frameless2->setResizeEnable(arg1 != 0);
}
}
void frmFramelessWidget::on_pushButton_2_clicked()
{
if (widget2 == 0) {
widget2 = new FramelessWidget2;
this->initWidget(widget2);
if (frameless2 == 0) {
frameless2 = new FramelessWidget2;
this->initWidget(frameless2);
}
widget2->show();
frameless2->show();
}

2
framelesswidget/frmframelesswidget.h
View File

@ -23,8 +23,8 @@ protected:
private:
Ui::frmFramelessWidget *ui;
QWidget *widget1;
FramelessWidget2 *widget2;
FramelessWidget *frameless;
FramelessWidget2 *frameless2;
private slots:
void initWidget(QWidget *w);

3
framelesswidget/main.cpp
View File

@ -6,6 +6,9 @@
int main(int argc, char *argv[])
{
#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
QGuiApplication::setHighDpiScaleFactorRoundingPolicy(Qt::HighDpiScaleFactorRoundingPolicy::Floor);
#endif
QApplication a(argc, argv);
a.setFont(QFont("Microsoft Yahei", 9));