QFD2/QFD/QFDWidget/CustomGrip.cpp

#include "CustomGrip.h"

#include <QMouseEvent>
#include <QSizeGrip>
#include <QDebug>

CustomGrip::CustomGrip(QWidget *parent, Qt::Edge positon, bool disableColor) : QWidget(parent)
{
    wi = new Widgets(this);

    switch (positon) {
    // SHOW TOP GRIP
    case Qt::TopEdge: {
        this->wi->top(this);
        setGeometry(0, 0, qobject_cast<QWidget *>(this->parent())->width(), 10);
        setMaximumHeight(10);

        // GRIPS
        QSizeGrip *topLeft  = new QSizeGrip(this->wi->m_topLeft);
        QSizeGrip *topRight = new QSizeGrip(this->wi->m_topRight);

        if (disableColor) {
            this->wi->m_topLeft->setStyleSheet("background: transparent");
            this->wi->m_topRight->setStyleSheet("background: transparent");
            this->wi->m_top->setStyleSheet("background: transparent");
        }

        wi->m_top->installEventFilter(this);
    } break;

    // SHOW BOTTOM GRIP
    case Qt::BottomEdge: {
        this->wi->bottom(this);
        setGeometry(0, qobject_cast<QWidget *>(this->parent())->height() - 10,
                    qobject_cast<QWidget *>(this->parent())->width(), 10);
        setMaximumHeight(10);

        // GRIPS
        QSizeGrip *bottom_left  = new QSizeGrip(this->wi->m_bottomLeft);
        QSizeGrip *bottom_right = new QSizeGrip(this->wi->m_bottomRight);

        if (disableColor) {
            this->wi->m_bottomLeft->setStyleSheet("background: transparent");
            this->wi->m_bottomRight->setStyleSheet("background: transparent");
            this->wi->m_bottom->setStyleSheet("background: transparent");
        }

        wi->m_bottom->installEventFilter(this);
    } break;

    // SHOW LEFT GRIP
    case Qt::LeftEdge: {
        this->wi->left(this);
        setGeometry(0, 10, 10, qobject_cast<QWidget *>(this->parent())->height());
        setMaximumWidth(10);

        if (disableColor) {
            this->wi->m_leftgrip->setStyleSheet("background: transparent");
        }
        wi->m_leftgrip->installEventFilter(this);
    } break;

    case Qt::RightEdge: {
        this->wi->right(this);
        setGeometry(qobject_cast<QWidget *>(this->parent())->width() - 10, 10, 10,
                    qobject_cast<QWidget *>(this->parent())->height());
        setMaximumWidth(10);

        if (disableColor) {
            this->wi->m_rightgrip->setStyleSheet("background: transparent");
        }
        wi->m_rightgrip->installEventFilter(this);
    } break;
    default:
        break;
    }
}

void CustomGrip::mouseReleaseEvent(QMouseEvent *event)
{
    Q_UNUSED(event)

    mousePos = QPoint();
}

void CustomGrip::resizeEvent(QResizeEvent *event)
{
    Q_UNUSED(event)

    if (this->wi->property("container_top").isValid()) {
        this->wi->m_containerTop->setGeometry(0, 0, this->width(), 10);
    } else if (this->wi->property("container_bottom").isValid()) {
        this->wi->m_containerBottom->setGeometry(0, 0, this->width(), 10);
    } else if (this->wi->property("leftgrip").isValid()) {
        this->wi->m_leftgrip->setGeometry(0, 0, 10, this->height() - 20);
    } else if (this->wi->property("rightgrip").isValid()) {
        this->wi->m_rightgrip->setGeometry(0, 0, 10, this->height() - 20);
    }
}

bool CustomGrip::eventFilter(QObject *watched, QEvent *event)
{
    if (watched != nullptr && event->type() == QEvent::MouseMove) {
        QMouseEvent *mouseEvent = static_cast<QMouseEvent *>(event);
        if (watched == this->wi->m_top) {  // RESIZE TOP
            QPoint delta    = mouseEvent->pos();
            QWidget *parent = qobject_cast<QWidget *>(this->parent());
            int height      = std::max(parent->minimumHeight(), parent->height() - delta.y());
            QRect geo       = parent->geometry();
            geo.setTop(geo.bottom() - height);
            parent->setGeometry(geo);
            event->accept();

        } else if (watched == this->wi->m_bottom) {  // RESIZE BOTTOM
            QPoint delta    = mouseEvent->pos();
            QWidget *parent = qobject_cast<QWidget *>(this->parent());
            int height      = std::max(parent->minimumHeight(), parent->height() + delta.y());
            parent->resize(parent->width(), height);
            event->accept();

        } else if (watched == this->wi->m_leftgrip) {  // RESIZE LEFT
            QPoint delta    = mouseEvent->pos();
            QWidget *parent = qobject_cast<QWidget *>(this->parent());
            int width       = std::max(parent->minimumWidth(), parent->width() - delta.x());
            QRect geo       = parent->geometry();
            geo.setLeft(geo.right() - width);
            parent->setGeometry(geo);
            event->accept();

        } else if (watched == this->wi->m_rightgrip) {  // RESIZE RIGHT
            QPoint delta    = mouseEvent->pos();
            QWidget *parent = qobject_cast<QWidget *>(this->parent());
            int width       = std::max(parent->minimumWidth(), parent->width() + delta.x());
            parent->resize(width, parent->height());
            event->accept();
        }
    }

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

////////////////////////////////////////////////////////////////////////////////////////////////
Widgets::Widgets(QObject *parent) : QObject(parent)
{
    m_containerTop = nullptr;
    m_topLayout    = nullptr;
    m_topLeft      = nullptr;
    m_top          = nullptr;
    m_topRight     = nullptr;

    m_containerBottom = nullptr;
    m_bottomLayout    = nullptr;
    m_bottomLeft      = nullptr;
    m_bottom          = nullptr;
    m_bottomRight     = nullptr;

    m_leftgrip  = nullptr;
    m_rightgrip = nullptr;
}

void Widgets::top(QWidget *form)
{
    if (form->objectName().isEmpty()) {
        form->setObjectName("Form");
    }

    this->setProperty("container_top", "container_top");
    this->m_containerTop = new QFrame(form);
    this->m_containerTop->setObjectName("container-top");
    this->m_containerTop->setGeometry(QRect(0, 0, 500, 10));
    this->m_containerTop->setMinimumSize(QSize(0, 10));
    this->m_containerTop->setMaximumSize(QSize(16777215, 10));
    this->m_containerTop->setFrameShape(QFrame::NoFrame);
    this->m_containerTop->setFrameShadow(QFrame::Raised);
    this->m_topLayout = new QHBoxLayout(this->m_containerTop);
    this->m_topLayout->setSpacing(0);
    this->m_topLayout->setObjectName("top-layout");
    this->m_topLayout->setContentsMargins(0, 0, 0, 0);
    this->m_topLeft = new QFrame(this->m_containerTop);
    this->m_topLeft->setObjectName("top-left");
    this->m_topLeft->setMinimumSize(QSize(10, 10));
    this->m_topLeft->setMaximumSize(QSize(10, 10));
    this->m_topLeft->setCursor(QCursor(Qt::SizeFDiagCursor));
    this->m_topLeft->setStyleSheet("background-color: rgb(33, 37, 43);");
    this->m_topLeft->setFrameShape(QFrame::NoFrame);
    this->m_topLeft->setFrameShadow(QFrame::Raised);
    this->m_topLayout->addWidget(this->m_topLeft);
    this->m_top = new QFrame(this->m_containerTop);
    this->m_top->setObjectName("top");
    this->m_top->setCursor(QCursor(Qt::SizeVerCursor));
    this->m_top->setStyleSheet("background-color: rgb(85, 255, 255);");
    this->m_top->setFrameShape(QFrame::NoFrame);
    this->m_top->setFrameShadow(QFrame::Raised);
    this->m_topLayout->addWidget(this->m_top);
    this->m_topRight = new QFrame(this->m_containerTop);
    this->m_topRight->setObjectName("top_right");
    this->m_topRight->setMinimumSize(QSize(10, 10));
    this->m_topRight->setMaximumSize(QSize(10, 10));
    this->m_topRight->setCursor(QCursor(Qt::SizeBDiagCursor));
    this->m_topRight->setStyleSheet("background-color: rgb(33, 37, 43);");
    this->m_topRight->setFrameShape(QFrame::NoFrame);
    this->m_topRight->setFrameShadow(QFrame::Raised);
    this->m_topLayout->addWidget(this->m_topRight);
}

void Widgets::bottom(QWidget *form)
{
    if (form->objectName().isEmpty()) {
        form->setObjectName("Form");
    }
    this->setProperty("container_bottom", "container_bottom");
    this->m_containerBottom = new QFrame(form);
    this->m_containerBottom->setObjectName("container_bottom");
    this->m_containerBottom->setGeometry(QRect(0, 0, 500, 10));
    this->m_containerBottom->setMinimumSize(QSize(0, 10));
    this->m_containerBottom->setMaximumSize(QSize(16777215, 10));
    this->m_containerBottom->setFrameShape(QFrame::NoFrame);
    this->m_containerBottom->setFrameShadow(QFrame::Raised);
    this->m_bottomLayout = new QHBoxLayout(this->m_containerBottom);
    this->m_bottomLayout->setSpacing(0);
    this->m_bottomLayout->setObjectName("bottom_layout");
    this->m_bottomLayout->setContentsMargins(0, 0, 0, 0);
    this->m_bottomLeft = new QFrame(this->m_containerBottom);
    this->m_bottomLeft->setObjectName("bottom_left");
    this->m_bottomLeft->setMinimumSize(QSize(10, 10));
    this->m_bottomLeft->setMaximumSize(QSize(10, 10));
    this->m_bottomLeft->setCursor(QCursor(Qt::SizeBDiagCursor));
    this->m_bottomLeft->setStyleSheet("background-color: rgb(33, 37, 43);");
    this->m_bottomLeft->setFrameShape(QFrame::NoFrame);
    this->m_bottomLeft->setFrameShadow(QFrame::Raised);
    this->m_bottomLayout->addWidget(this->m_bottomLeft);
    this->m_bottom = new QFrame(this->m_containerBottom);
    this->m_bottom->setObjectName("bottom");
    this->m_bottom->setCursor(QCursor(Qt::SizeVerCursor));
    this->m_bottom->setStyleSheet("background-color: rgb(85, 170, 0);");
    this->m_bottom->setFrameShape(QFrame::NoFrame);
    this->m_bottom->setFrameShadow(QFrame::Raised);
    this->m_bottomLayout->addWidget(this->m_bottom);
    this->m_bottomRight = new QFrame(this->m_containerBottom);
    this->m_bottomRight->setObjectName("bottom_right");
    this->m_bottomRight->setMinimumSize(QSize(10, 10));
    this->m_bottomRight->setMaximumSize(QSize(10, 10));
    this->m_bottomRight->setCursor(QCursor(Qt::SizeFDiagCursor));
    this->m_bottomRight->setStyleSheet("background-color: rgb(33, 37, 43);");
    this->m_bottomRight->setFrameShape(QFrame::NoFrame);
    this->m_bottomRight->setFrameShadow(QFrame::Raised);
    this->m_bottomLayout->addWidget(this->m_bottomRight);
}

void Widgets::left(QWidget *form)
{
    if (form->objectName().isEmpty()) {
        form->setObjectName("Form");
    }
    this->setProperty("leftgrip", "leftgrip");
    this->m_leftgrip = new QFrame(form);
    this->m_leftgrip->setObjectName("left");
    this->m_leftgrip->setGeometry(QRect(0, 10, 10, 480));
    this->m_leftgrip->setMinimumSize(QSize(10, 0));
    this->m_leftgrip->setCursor(QCursor(Qt::SizeHorCursor));
    this->m_leftgrip->setStyleSheet("background-color: rgb(255, 121, 198);");
    this->m_leftgrip->setFrameShape(QFrame::NoFrame);
    this->m_leftgrip->setFrameShadow(QFrame::Raised);
}

void Widgets::right(QWidget *form)
{
    if (form->objectName().isEmpty()) {
        form->setObjectName("Form");
    }
    this->setProperty("rightgrip", "rightgrip");
    form->resize(500, 500);
    this->m_rightgrip = new QFrame(form);
    this->m_rightgrip->setObjectName("right");
    this->m_rightgrip->setGeometry(QRect(0, 0, 10, 500));
    this->m_rightgrip->setMinimumSize(QSize(10, 0));
    this->m_rightgrip->setCursor(QCursor(Qt::SizeHorCursor));
    this->m_rightgrip->setStyleSheet("background-color: rgb(255, 0, 127);");
    this->m_rightgrip->setFrameShape(QFrame::NoFrame);
    this->m_rightgrip->setFrameShadow(QFrame::Raised);
}