Qt模仿QQ聊天窗口界面（三）- 截图

简述

此篇在原来的基础上增加了QQ截图功能。在一个大佬的基础上进行了二次开发。
参考链接：Dharkael
相关博客：
Qt模仿QQ聊天窗口界面（一）
Qt模仿QQ聊天窗口界面（二）

效果图

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代码篇

//这里代码太多，我就不贴出来了，有需要的盆友
//可以加我QQ:雨田哥-工作号:3246214072
//放大镜部分代码
void AmplifierWidget::paintEvent(QPaintEvent *event)
{
    __super::paintEvent(event);
    QPainter painter(this);
    painter.setRenderHint(QPainter::SmoothPixmapTransform);
    //绘制放大镜图片
    painter.drawPixmap(6, 6, 120, 88, m_pixmap.scaled(120, 88));
    //绘制背景图
    painter.drawPixmap(0, 0, width(), height(), QPixmap(":/TalkWindowShell/Resources/screenImg/Magnifier.png"));
    painter.setPen(Qt::white);
    QFont font = painter.font();
    font.setPixelSize(12);
    painter.setFont(font);
    //绘制选择框大小
    painter.drawText(6, 98, 120, 16, Qt::AlignLeft, QString("%1x%2").arg(m_selection.width()).arg(m_selection.height()));
    
    QColor pixcolor = m_pixmap.toImage().pixel(m_pixmap.width() / 2, m_pixmap.height() / 2);
    //绘制中心RGB颜色
    painter.drawText(6, 112, 120, 16, Qt::AlignLeft, QString("rgb(%1,%2,%3)").arg(pixcolor.red()).arg(pixcolor.green()).arg(pixcolor.blue()));
}

void AmplifierWidget::setAmplifierWidgetPixmap(const QPixmap& pixmap, QRect selection)
{
    m_pixmap = pixmap;
    m_selection = selection;
    update();
}

//颜色选择部分代码
void QColorPicker::initControl()
{
    m_thickness = 1;
    m_curColor = "rgb(255, 0, 0)";

    ui.color1->setProperty("color",  "rgb(0, 0, 0)");
    ui.color2->setProperty("color",  "rgb(170, 0, 0)");
    ui.color3->setProperty("color",  "rgb(85, 170, 255)");
    ui.color4->setProperty("color",  "rgb(200, 200, 200)");
    ui.color5->setProperty("color",  "rgb(170, 0, 127)");
    ui.color6->setProperty("color",  "rgb(0, 85, 127)");
    ui.color7->setProperty("color",  "rgb(170, 170, 127)");
    ui.color8->setProperty("color",  "rgb(130, 149, 46)");
    ui.color9->setProperty("color",  "rgb(170, 0, 255)");
    ui.color10->setProperty("color", "rgb(255, 0, 0)");
    ui.color11->setProperty("color", "rgb(255, 170, 0)");
    ui.color12->setProperty("color", "rgb(255, 129, 19)");
    ui.color13->setProperty("color", "rgb(255, 170, 255)");
    ui.color14->setProperty("color", "rgb(157, 127, 157)");
    ui.color15->setProperty("color", "rgb(255, 85, 0)");
    ui.color16->setProperty("color", "rgb(85, 170, 127)");

    connect(ui.color1,  &QPushButton::clicked, this, &QColorPicker::onColorClicked);
    connect(ui.color2,  &QPushButton::clicked, this, &QColorPicker::onColorClicked);
    connect(ui.color3,  &QPushButton::clicked, this, &QColorPicker::onColorClicked);
    connect(ui.color4,  &QPushButton::clicked, this, &QColorPicker::onColorClicked);
    connect(ui.color5,  &QPushButton::clicked, this, &QColorPicker::onColorClicked);
    connect(ui.color6,  &QPushButton::clicked, this, &QColorPicker::onColorClicked);
    connect(ui.color7,  &QPushButton::clicked, this, &QColorPicker::onColorClicked);
    connect(ui.color8,  &QPushButton::clicked, this, &QColorPicker::onColorClicked);
    connect(ui.color9,  &QPushButton::clicked, this, &QColorPicker::onColorClicked);
    connect(ui.color10, &QPushButton::clicked, this, &QColorPicker::onColorClicked);
    connect(ui.color11, &QPushButton::clicked, this, &QColorPicker::onColorClicked);
    connect(ui.color12, &QPushButton::clicked, this, &QColorPicker::onColorClicked);
    connect(ui.color13, &QPushButton::clicked, this, &QColorPicker::onColorClicked);
    connect(ui.color14, &QPushButton::clicked, this, &QColorPicker::onColorClicked);
    connect(ui.color15, &QPushButton::clicked, this, &QColorPicker::onColorClicked);
    connect(ui.color16, &QPushButton::clicked, this, &QColorPicker::onColorClicked);

    QButtonGroup* btnGroup = new QButtonGroup(this);
    ui.minBtn->setChecked(true);
    btnGroup->addButton(ui.minBtn);
    btnGroup->addButton(ui.midBtn);
    btnGroup->addButton(ui.largeBtn);

    connect(ui.minBtn, &QPushButton::clicked, this, &QColorPicker::onThicknessClicked);
    connect(ui.midBtn, &QPushButton::clicked, this, &QColorPicker::onThicknessClicked);
    connect(ui.largeBtn, &QPushButton::clicked, this, &QColorPicker::onThicknessClicked);
}

void QColorPicker::onColorClicked()
{
    QString btnColor = sender()->property("color").toString();
    m_curColor = btnColor;
    ui.color->setStyleSheet(QString("QPushButton{border:none;background-color: %1;}").arg(btnColor));
}

void QColorPicker::onThicknessClicked()
{
    QString btnName = sender()->objectName();
    if (btnName == "minBtn")
    {
        m_thickness = 1;
    }
    else if (btnName == "midBtn")
    {
        m_thickness = 4;
    }
    else if (btnName == "largeBtn")
    {
        m_thickness = 8;
    }
}

QColor QColorPicker::drawColor()
{
    return QColor(ColorMap::colormap.value(m_curColor));
}

int QColorPicker::thickNess()
{
    return m_thickness;
}

void QColorPicker::paintEvent(QPaintEvent *event)
{
    __super::paintEvent(event);
    QStyleOption opt;
    opt.init(this);
    QPainter p(this);
    style()->drawPrimitive(QStyle::PE_Widget, &opt, &p, this);
}

后期规划

Qt模仿QQ聊天窗口界面（四）
1.增加聊天窗口气泡消息功能

工程文件

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