实例介绍
【实例截图】
【核心代码】
#include "preview360.h" Preview360::Preview360(QWidget *parent) : QFrame(parent) { initVariable(); initSetupUi(); } Preview360::~Preview360() { freeMemory(); } void Preview360::paintEvent(QPaintEvent *) { QBitmap bitmap(this->size()); QPainter painter(&bitmap); painter.fillRect(bitmap.rect(), Qt::white); painter.setBrush(QColor(0, 0, 0)); painter.drawRoundedRect(QRect(0, 2, this->width(), this->height()-2), 5, 5); painter.drawRoundedRect(QRect(20, 0, 120-20, 2), 2, 2); setMask(bitmap); } void Preview360::mousePressEvent(QMouseEvent *e) { if (e->button() == Qt::LeftButton) { m_mouseSrcPos = e->pos(); if (m_mouseSrcPos.y() <= 40) { m_mouseMoveWindowFlag = true; } else { m_currentFgXpos = m_pLabelFgTotal->x(); m_mousePressFlag = true; } } else if (e->button() == Qt::RightButton) { if (getLabelMove()) { if (m_currentFgIndex > 0) { m_currentFgIndex--; moveCurrentPage(false); //右移 } } } } void Preview360::mouseReleaseEvent(QMouseEvent *e) { int xpos = 0; if (m_mousePressFlag) { if (getLabelMove()) { m_mouseDstPos = e->pos(); xpos = m_mouseDstPos.x() - m_mouseSrcPos.x(); if (xpos > 0)//右移 { if (xpos >= WINDOW_ONEBUTTON_WIDTH) { if (m_currentFgIndex > 0) { m_currentFgIndex--; moveCurrentPage(false); //右移 } else { moveCurrentPage(true); //左移 } } else { moveCurrentPage(true); //左移 } } else //左移 { if (xpos <= -WINDOW_ONEBUTTON_WIDTH) { if (m_currentFgIndex < WINDOW_PAGE_COUNT-1) { m_currentFgIndex ; moveCurrentPage(true); //左移 } else { moveCurrentPage(false); //右移 } } else { moveCurrentPage(false); //右移 } } m_mousePressFlag = false; } } else if (m_mouseMoveWindowFlag) { m_mouseMoveWindowFlag = false; } } void Preview360::mouseMoveEvent(QMouseEvent *e) { int x = 0; if (m_mousePressFlag) { if (getLabelMove()) { m_mouseDstPos = e->pos(); x = m_mouseDstPos.x() - m_mouseSrcPos.x(); setLabelMove(false); m_pLabelFgTotal->move(m_currentFgXpos x, WINDOW_START_Y); setLabelMove(true); } } else if (m_mouseMoveWindowFlag) { m_mouseDstPos = e->pos(); this->move(this->pos() m_mouseDstPos - m_mouseSrcPos); } } void Preview360::keyPressEvent(QKeyEvent *e) { if (getLabelMove()) { switch(e->key()) { case Qt::Key_Left: case Qt::Key_Up: if (m_currentFgIndex > 0) { m_currentFgIndex--; moveCurrentPage(false); //右移 } break; case Qt::Key_Right: case Qt::Key_Down: if (m_currentFgIndex < WINDOW_PAGE_COUNT-1) { m_currentFgIndex ; moveCurrentPage(true); //左移 } break; default: break; } } } bool Preview360::eventFilter(QObject *target, QEvent *event) { EButtonMouseState state = EButtonMouseNone; if (target == m_pButtonClose) { if (event->type() == QEvent::Enter) { state = EButtonMouseEnter; } else if (event->type() == QEvent::Leave) { state = EButtonMouseDefault; } else if (((QMouseEvent *)event)->button() == Qt::LeftButton) { if (event->type() == QEvent::MouseButtonPress) { state = EButtonMousePress; //若点击在关闭按钮上,不拖动图像 m_mousePressFlag = false; } else if (event->type() == QEvent::MouseButtonRelease) { state = EButtonMouseEnter; } } if (state != EButtonMouseNone) { setButtonIcon((QToolButton *)target, state); } } return QWidget::eventFilter(target, event); } void Preview360::slotLabelButtonPress(CLabel *label) { for (int i = 0; i < WINDOW_BUTTON_COUNT; i ) { if (label != m_pLabelBtnArray[i]) { m_pLabelBtnArray[i]->setMousePressFlag(false); } } } void Preview360::slotChangeCurrentPage(CLabel *label) { int index = 0; for (int i = 0; i < WINDOW_PAGE_COUNT; i ) { if (label == m_pLabelBtnArray[i]) { index = i; break; } } //移动的几种可能性,对于x坐标 //index=0, 将label移动到-680*0 //index=1, 将label移动到-680*1 //index=2, 将label移动到-680*2 //index=3, 将label移动到-680*3 //点击左边的按钮 右移 if (index < m_currentFgIndex) { while(index != m_currentFgIndex) { m_currentFgIndex--; moveCurrentPage(false); } } else if (index > m_currentFgIndex) //点击右边的按钮 左移 { while(index != m_currentFgIndex) { m_currentFgIndex ; moveCurrentPage(true); } } else { //... } } void Preview360::initSetupUi() { createFrame(); createWidget(); createEventFilter(); } void Preview360::initVariable() { m_mousePressFlag = false; m_mouseMoveWindowFlag = false; m_currentFgIndex = 0; m_currentFgXpos = 0; } void Preview360::createFrame() { this->setWindowTitle(tr("360安全卫士 新版特性")); this->resize(QSize(WINDOW_WIDTH, WINDOW_HEIGHT)); setWindowFlags(Qt::FramelessWindowHint); m_pLabelBg0 = new QLabel(this); m_pLabelBg0->setPixmap(QPixmap(":/images/bg_bottom.png")); m_pLabelBg0->setGeometry(QRect(0, 2, this->width(), this->height()-2)); m_pLabelBg1 = new QLabel(this); m_pLabelBg1->setPixmap(QPixmap(":/images/bg_top.png")); m_pLabelBg1->setGeometry(QRect(0, 0, this->width(), this->height())); } void Preview360::createWidget() { //将4张图片合成一张 QPixmap pixmap(QSize(this->width()*WINDOW_PAGE_COUNT, WINDOW_HEIGHT-2)); QPainter painter(&pixmap); for (int i = 0; i < WINDOW_PAGE_COUNT; i ) { painter.drawImage(QRect(WINDOW_WIDTH*i, 0, WINDOW_WIDTH, WINDOW_HEIGHT-2), QImage(tr(":/images/desktop_%1.jpg").arg(i))); } m_pLabelFgTotal = new QLabel(this); m_pLabelFgTotal->resize(pixmap.size()); m_pLabelFgTotal->setPixmap(pixmap); m_pLabelFgTotal->move(WINDOW_START_X, WINDOW_START_Y); QStringList nameList; nameList << tr("360安全桌面 ") << tr("木马防火墙 ") << tr("360保镖 ") << tr("电脑门诊 "); for (int i = 0; i < WINDOW_BUTTON_COUNT; i ) { CLabel *label = new CLabel(this); label = new CLabel(this); label->resize(QSize(155, 45)); label->setPixmap(QPixmap(tr(":/images/btn_%1.png").arg(i))); label->setText(nameList.at(i)); label->move(8 i*170, 319); connect(label, SIGNAL(signalLabelPress(CLabel*)), this, SLOT(slotLabelButtonPress(CLabel*)));; connect(label, SIGNAL(signalLabelPress(CLabel*)), this, SLOT(slotChangeCurrentPage(CLabel*))); m_pLabelBtnArray[i] = label; } m_pLabelBtnArray[0]->setMousePressFlag(true); m_pButtonClose = new QToolButton(this); m_pButtonClose->setFocusPolicy(Qt::NoFocus); m_pButtonClose->setStyleSheet("background:transparent;border:0px;"); setButtonIcon(m_pButtonClose, EButtonMouseDefault); m_pButtonClose->move(QPoint(this->width()-52, 1)); connect(m_pButtonClose, SIGNAL(clicked()), qApp, SLOT(quit())); //raise these widget m_pLabelBg1->raise(); m_pButtonClose->raise(); for (int i = 0; i < WINDOW_BUTTON_COUNT; i ) { m_pLabelBtnArray[i]->raise(); } } void Preview360::createEventFilter() { m_pButtonClose->installEventFilter(this); } void Preview360::setButtonIcon(QToolButton *btn, EButtonMouseState state) { QPixmap pixmap(":/images/btn_close.png"); int nWidth = pixmap.width()/4; int nHeight = pixmap.height(); btn->setIcon(QIcon(pixmap.copy(QRect(state * nWidth, 0, nWidth, nHeight)))); btn->setIconSize(QSize(nWidth, nHeight)); } void Preview360::changeCurrentButton() { for (int i = 0; i < WINDOW_BUTTON_COUNT; i ) { if (i != m_currentFgIndex) { m_pLabelBtnArray[i]->setMousePressFlag(false); } else { m_pLabelBtnArray[i]->setMousePressFlag(true); } } } inline void Preview360::setLabelMove(bool enable) { m_labelMoveFlag = enable; } inline bool Preview360::getLabelMove() { return m_labelMoveFlag; } void Preview360::moveCurrentPage(bool direction) { int currentXpos = 0;//当前label的x坐标 int destXpos = 0;//目标x坐标 //改变当前页面对应的按钮 changeCurrentButton(); //图片的几个分割点 //0-680, 680-1360, 1360-2040, 2040-2720 //真:向左移; 假:向右移 if (direction) { //左移的几种可能性,对于x坐标 //index=0, 将label移动到-680*0 //index=1, 将label移动到-680*1 //index=2, 将label移动到-680*2 //index=3, 将label移动到-680*3 setLabelMove(false); currentXpos = m_pLabelFgTotal->x(); destXpos = -WINDOW_WIDTH * m_currentFgIndex; while(currentXpos > destXpos) { m_pLabelFgTotal->move(currentXpos-WINDOW_PAGE_MOVE, WINDOW_START_Y); currentXpos = m_pLabelFgTotal->x(); qApp->processEvents(QEventLoop::AllEvents); } m_pLabelFgTotal->move(destXpos, WINDOW_START_Y); setLabelMove(true); } else { //右移的几种可能性,对于x坐标,与左移一致 //index=0, 将label移动到-680*0 //index=1, 将label移动到-680*1 //index=2, 将label移动到-680*2 //index=3, 将label移动到-680*3 setLabelMove(false); currentXpos = m_pLabelFgTotal->x(); destXpos = -WINDOW_WIDTH * m_currentFgIndex; while(currentXpos < destXpos) { m_pLabelFgTotal->move(currentXpos WINDOW_PAGE_MOVE, WINDOW_START_Y); currentXpos = m_pLabelFgTotal->x(); qApp->processEvents(QEventLoop::AllEvents); } m_pLabelFgTotal->move(destXpos, WINDOW_START_Y); setLabelMove(true); } } void Preview360::freeMemory() { for (int i = 0; i < WINDOW_PAGE_COUNT; i ) { delete m_pLabelBtnArray[i]; } delete m_pLabelFgTotal; delete m_pButtonClose; delete m_pLabelBg0; delete m_pLabelBg1; }
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