192 lines
8.1 KiB
C++
192 lines
8.1 KiB
C++
|
#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);
|
|||
|
|
}
|
|||
|
|
}
|