updating: “ https://github.com/Heydullsam/paste_pic.git“

1 全屏截图

设置图标
QSystemTrayIcon sysMenu.setIcon() .show()
QCursor::pos()定位鼠标位置
QRect确定矩形
QMenu.addAction添加小组件的功能menu->addAction("截图",this,SLOT(grapScreen()));可以直接使用槽函数
Qpainter.drawpixmap绘制，方便调用重写paintEvent

2 选区截图

实现了selectRectWidget类，通过重写鼠标事件实现部分区域的抓取
通过update()和drawRect实现选中框的更新
原窗口逻辑中加入resize，避免框选图片被强制拉长

3 实现截图的拖动功能

复用了之前DragFiler,加入了右键关闭功能
安装DragFilter

4 实现快捷键

引入第三方库QHotkey, 解决了没有主窗口无法触发截图快捷键的问题
+third_party文件目录，修改cmakelists target_link_libraries(paste_pic PRIVATE QHotkey) add_subdirectory(third_party/QHotkey)
通过QDialog QVBoxLayout QKeySequenceEdit收集快捷键输入

class SetHotkeyDialog : public QDialog {
    Q_OBJECT
public:
    SetHotkeyDialog(QWidget* parent = nullptr) : QDialog(parent) {
        setWindowTitle("设置快捷键");
        auto layout = new QVBoxLayout(this);
        keyEdit = new QKeySequenceEdit(this);
        auto btn = new QPushButton("确定", this);
        layout->addWidget(keyEdit);
        layout->addWidget(btn);
        connect(btn, &QPushButton::clicked, this, &QDialog::accept);
    }
    QKeySequence keySequence() const { return keyEdit->keySequence(); }
private:
    QKeySequenceEdit* keyEdit;
    
};

设置快捷键并调用

void SnipasteApp::setHotkey()
{
    SetHotkeyDialog dlg;
    if (dlg.exec() == QDialog::Accepted) {
        QKeySequence seq = dlg.keySequence();
        if (!seq.isEmpty()) {
            if (m_hotkey) {
                m_hotkey->setRegistered(false);
                delete m_hotkey;
            }
            m_hotkey = new QHotkey(seq, true, this); // true 表示立即注册
            connect(m_hotkey, &QHotkey::activated, this, &SnipasteApp::grapScreen);
        }
    }
}