284 lines
8.8 KiB
C++
284 lines
8.8 KiB
C++
#include "sui.h"
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sui::sui(QWidget *parent)
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: QWidget(parent),
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m_layout(new QVBoxLayout),
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m_widget(new QWidget),
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m_press(false),
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m_border_width(2),
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ori(NONE)
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{
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m_title = new sui_title(this);
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setObjectName(tr("m_widget"));
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m_layout->addWidget(m_title);
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m_title->setMouseTracking(true);
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m_layout->setContentsMargins(5, 5, 5, 5);
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m_layout->setSpacing(0);
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setWindowFlags(Qt::FramelessWindowHint);
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setAttribute(Qt::WA_TranslucentBackground);
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setMouseTracking(true);
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setBaseSize(1260, 800);
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resize(1260, 800);
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setLayout(m_layout);
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connect(m_title, SIGNAL(signals_close()), this, SLOT(close()));
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}
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sui::~sui()
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{
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}
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void sui::showEvent(QShowEvent *event)
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{
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this->setAttribute(Qt::WA_Mapped);
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QWidget::showEvent(event);
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QSize oldSize = this->size();
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resize(oldSize + QSize(10, 10));
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resize(oldSize);
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}
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void sui::paintEvent(QPaintEvent *event)
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{
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QStyleOption opt;
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opt.initFrom(this);
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QPainter painter(this);
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style()->drawPrimitive(QStyle::PE_Widget, &opt, &painter, this);
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painter.setRenderHint(QPainter::Antialiasing);
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painter.drawRoundedRect(this->rect(), 10, 10);
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QWidget::paintEvent(event);
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}
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void sui::region(const QPoint ¤tGlobalPoint)
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{
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// 获取窗体在屏幕上的位置区域，topLeft为坐上角点，rightButton为右下角点
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QRect rect = this->rect();
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// 将左上角的(0,0)转化为全局坐标
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QPoint topLeft = this->mapToGlobal(rect.topLeft());
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QPoint rightButton = this->mapToGlobal(rect.bottomRight());
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// 当前鼠标的坐标
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int x = currentGlobalPoint.x();
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int y = currentGlobalPoint.y();
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if (((topLeft.x() + m_border_width >= x) && (topLeft.x() <= x)) && ((topLeft.y() + m_border_width >= y) && (topLeft.y() <= y)))
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{
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// 左上角
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ori = LEFTTOP;
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// 设置光标形状
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this->setCursor(QCursor(Qt::SizeFDiagCursor));
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}
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else if (((x >= rightButton.x() - m_border_width) && (x <= rightButton.x())) && ((y >= rightButton.y() - m_border_width) && (y <= rightButton.y())))
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{
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// 右下角
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ori = RIGHTBOTTOM;
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this->setCursor(QCursor(Qt::SizeFDiagCursor));
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}
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else if (((x <= topLeft.x() + m_border_width) && (x >= topLeft.x())) && ((y >= rightButton.y() - m_border_width) && (y <= rightButton.y())))
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{
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// 左下角
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ori = LEFTBOTTOM;
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this->setCursor(QCursor(Qt::SizeBDiagCursor));
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}
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else if (((x <= rightButton.x()) && (x >= rightButton.x() - m_border_width)) && ((y >= topLeft.y()) && (y <= topLeft.y() + m_border_width)))
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{
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// 右上角
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ori = RIGHTTOP;
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this->setCursor(QCursor(Qt::SizeBDiagCursor));
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}
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else if ((x <= topLeft.x() + m_border_width) && (x >= topLeft.x()))
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{
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// 左边
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ori = LEFT;
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this->setCursor(QCursor(Qt::SizeHorCursor));
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}
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else if ((x <= rightButton.x()) && (x >= rightButton.x() - m_border_width))
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{
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// 右边
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ori = RIGHT;
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this->setCursor(QCursor(Qt::SizeHorCursor));
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}
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else if ((y >= topLeft.y()) && (y <= topLeft.y() + m_border_width))
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{
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// 上边
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ori = UP;
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this->setCursor(QCursor(Qt::SizeVerCursor));
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}
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else if ((y <= rightButton.y()) && (y >= rightButton.y() - m_border_width))
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{
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// 下边
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ori = DOWN;
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this->setCursor(QCursor(Qt::SizeVerCursor));
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}
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else
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{
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// 默认
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ori = NONE;
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this->setCursor(QCursor(Qt::ArrowCursor));
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}
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}
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void sui::mousePressEvent(QMouseEvent *event)
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{
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switch (event->button())
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{
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case Qt::LeftButton:
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m_press = true;
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if (ori != NONE)
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{
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// 返回当前抓取鼠标输入的窗口
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this->mouseGrabber();
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}
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else
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{
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m_point = event->globalPosition().toPoint() - this->frameGeometry().topLeft();
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// globalPos()鼠标位置，topLeft()窗口左上角的位置
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}
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break;
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case Qt::RightButton:
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//this->setWindowState(Qt::WindowMinimized);
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break;
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default:
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QWidget::mousePressEvent(event);
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}
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}
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void sui::mouseMoveEvent(QMouseEvent *event)
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{
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QPoint globalPoint = event->globalPosition().toPoint();
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QRect rect = this->rect();
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QPoint topLeft = mapToGlobal(rect.topLeft());
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QPoint bottomRight = mapToGlobal(rect.bottomRight());
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if (this->windowState() != Qt::WindowMaximized)
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{
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// 没有按下左键时
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if (!m_press)
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{
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// 窗口大小的改变——判断鼠标位置，改变光标形状
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this->region(globalPoint);
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}
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else
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{
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if (ori != NONE)
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{
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QRect newRect(topLeft, bottomRight);
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switch (ori)
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{
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case LEFT:
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if (bottomRight.x() - globalPoint.x() <= this->minimumWidth())
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{
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// 小于界面的最小宽度时，设置为左上角横坐标为窗口x
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newRect.setLeft(topLeft.x());
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// 只改变左边界
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}
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else
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{
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newRect.setLeft(globalPoint.x());
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}
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break;
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case RIGHT:
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// 只能改变右边界
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newRect.setWidth(globalPoint.x() - topLeft.x());
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break;
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case UP:
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if (bottomRight.y() - globalPoint.y() <= this->minimumHeight())
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{
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newRect.setY(topLeft.y());
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}
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else
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{
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newRect.setY(globalPoint.y());
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}
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break;
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case DOWN:
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newRect.setHeight(globalPoint.y() - topLeft.y());
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break;
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case LEFTTOP:
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if (bottomRight.x() - globalPoint.x() <= this->minimumWidth())
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{
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newRect.setX(topLeft.x());
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}
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else
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{
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newRect.setX(globalPoint.x());
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}
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if (bottomRight.y() - globalPoint.y() <= this->minimumHeight())
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{
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newRect.setY(topLeft.y());
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}
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else
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{
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newRect.setY(globalPoint.y());
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}
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break;
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case RIGHTTOP:
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if (globalPoint.x() - topLeft.x() >= this->minimumWidth())
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{
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newRect.setWidth(globalPoint.x() - topLeft.x());
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}
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else
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{
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newRect.setWidth(bottomRight.x() - topLeft.x());
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}
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if (bottomRight.y() - globalPoint.y() >= this->minimumHeight())
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{
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newRect.setY(globalPoint.y());
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}
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else
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{
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newRect.setY(topLeft.y());
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}
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break;
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case LEFTBOTTOM:
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if (bottomRight.x() - globalPoint.x() >= this->minimumWidth())
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{
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newRect.setX(globalPoint.x());
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}
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else
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{
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newRect.setX(topLeft.x());
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}
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if (globalPoint.y() - topLeft.y() >= this->minimumHeight())
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{
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newRect.setHeight(globalPoint.y() - topLeft.y());
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}
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else
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{
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newRect.setHeight(bottomRight.y() - topLeft.y());
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}
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break;
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case RIGHTBOTTOM:
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newRect.setWidth(globalPoint.x() - topLeft.x());
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newRect.setHeight(globalPoint.y() - topLeft.y());
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break;
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default:
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break;
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}
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this->setGeometry(newRect);
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}
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else
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{
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// 移动窗口
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move(event->globalPosition().toPoint() - m_point);
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event->accept();
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}
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}
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}
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}
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// 鼠标释放事件
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void sui::mouseReleaseEvent(QMouseEvent *event)
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{
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if (event->button() == Qt::LeftButton)
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{
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m_press = false;
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if (ori != NONE)
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{
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// 释放鼠标抓取
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this->releaseMouse();
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this->setCursor(QCursor(Qt::ArrowCursor));
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ori = NONE;
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}
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}
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} |