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This commit is contained in:
feiyangqingyun
2021-07-05 17:56:40 +08:00
parent db7be43ae2
commit 64fb8ac301
7 changed files with 219 additions and 134 deletions
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157
framelesswidget/framelesswidget.cpp
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@@ -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();
}
}