Qt编写数据可视化大屏界面电子看板3-新建布局

#include "frmmodulecenter.h"
#include "ui_frmmodulecenter.h"
#include "quiwidget.h"

frmModuleCenter::frmModuleCenter(QWidget *parent) : QWidget(parent), ui(new Ui::frmModuleCenter)
{
    ui->setupUi(this);
    this->initForm();
}

frmModuleCenter::~frmModuleCenter()
{
    delete ui;
}

bool frmModuleCenter::eventFilter(QObject *watched, QEvent *event)
{
    if (watched == this) {
        if (event->type() == QEvent::MouseButtonPress) {
            if (qApp->mouseButtons() == Qt::RightButton) {
                menuMain->exec(QCursor::pos());
            }
        }
    }

    return QWidget::eventFilter(watched, event);
}

void frmModuleCenter::initForm()
{
    ui->labName->setText(App::Title);
    this->installEventFilter(this);

    //鼠标右键菜单
    menuMain = new QMenu(this);

    //从目录下找布局文件自动生成菜单
    menuLayout = menuMain->addMenu("布局方案");
    QDir dir(QUIHelper::appPath() + "/layout");
    QStringList files = dir.entryList(QStringList() << "*.ini");
    foreach (QString file, files) {
        QString name = file.split(".").first();
        menuLayout->addAction(name, this, SLOT(changeLayout()));
    }

    menuTheme = menuMain->addMenu("配色方案");
    menuTheme->addAction("紫色风格", this, SLOT(changeTheme()));
    menuTheme->addAction("蓝色风格", this, SLOT(changeTheme()));
    menuTheme->addAction("深蓝风格", this, SLOT(changeTheme()));
    menuTheme->addAction("黑色风格", this, SLOT(changeTheme()));
    menuTheme->addAction("自定义风格", this, SLOT(changeTheme()));
    menuMain->addSeparator();

    menuMain->addAction("新建布局", this, SLOT(doAction()));
    menuMain->addAction("恢复布局", this, SLOT(doAction()));
    menuMain->addAction("保存布局", this, SLOT(doAction()));
    menuMain->addAction("布局另存", this, SLOT(doAction()));
    menuMain->addSeparator();

    menuMain->addAction("截取屏幕", this, SLOT(doAction()));
    menuMain->addAction("退出系统", this, SLOT(doAction()));

    //设置菜单允许复选框+选中配置文件对应菜单
    actionLayout = menuLayout->actions();
    foreach (QAction *action, actionLayout) {
        action->setCheckable(true);
        action->setChecked(action->text() == App::Layout);
    }

    actionTheme = menuTheme->actions();
    foreach (QAction *action, actionTheme) {
        action->setCheckable(true);
        action->setChecked(action->text() == App::Theme);
    }
}

void frmModuleCenter::changeLayout()
{
    QAction *ac = (QAction *)sender();
    emit changeLayout(ac->text());
    foreach (QAction *action, actionLayout) {
        action->setChecked(action == ac);
    }
}

void frmModuleCenter::changeTheme()
{
    QAction *ac = (QAction *)sender();
    emit changeTheme(ac->text());
    foreach (QAction *action, actionTheme) {
        action->setChecked(action == ac);
    }
}

void frmModuleCenter::addLayout(const QString &layout, int type)
{
    if (!layout.isEmpty()) {
        //判断名称不能重复
        foreach (QAction *action, actionLayout) {
            if (action->text() == layout) {
                QUIHelper::showMessageBoxError("布局已经存在,请重新输入!", 3);
                return;
            }
        }

        //增加右键菜单中的布局子菜单
        QAction *action = menuLayout->addAction(layout, this, SLOT(changeLayout()));
        //取消原有所有选中
        foreach (QAction *action, actionLayout) {
            action->setChecked(false);
        }

        action->setCheckable(true);
        action->setChecked(true);
        actionLayout.append(action);
        emit saveLayout(layout, type);
    }
}

void frmModuleCenter::doAction()
{
    QAction *action = (QAction *)sender();
    QString text = action->text();

    if (text == "新建布局") {
        QString layout = QUIHelper::showInputBox("布局名称");
        addLayout(layout, 0);
    } else if (text == "恢复布局") {
        emit saveLayout("", 1);
    } else if (text == "保存布局") {
        if (QUIHelper::showMessageBoxQuestion("确定要保存吗?保存后不可恢复!") == QMessageBox::Yes) {
            emit saveLayout(App::Layout, 2);
            QUIHelper::showMessageBoxInfo("恭喜,保存当前布局成功!", 3);
        }
    } else if (text == "布局另存") {
        QString layout = QUIHelper::showInputBox("布局名称");
        addLayout(layout, 3);
    } else if (text == "截取屏幕") {
        QWidget *w = (QWidget *)this->parent();
        if (w == 0) {
            return;
        }

        QPixmap pix;
        int x = 0;
        int y = 0;
        int width = w->width() - 0;
        int height = w->height() - 0;

#if (QT_VERSION <= QT_VERSION_CHECK(5,0,0))
        pix = pix.grabWindow(w->winId(), x, y, width, height);
#else
        QScreen *pscreen = QApplication::primaryScreen();
        pix = pscreen->grabWindow(w->winId(), x, y, width, height);
#endif

        QString file = QString("%1/snap/%2_%3.png").arg(QUIHelper::appPath()).arg(App::Theme).arg(App::Layout);
        pix.save(file, "png");
    } else if (text == "退出系统") {
        emit closeAll();
    }
}