KisSelectionActionsPanel Class Reference

#include <kis_selection_actions_panel.h>

Inheritance diagram for KisSelectionActionsPanel:

Classes
struct	Private

Public Member Functions
void	canvasWidgetChanged (KisCanvasWidgetBase *canvas)
void	draw (QPainter &painter)
bool	eventFilter (QObject *obj, QEvent *event) override
	KisSelectionActionsPanel ()=delete
	KisSelectionActionsPanel (KisViewManager *viewManager)
void	setEnabled (bool enabled)
void	setVisible (bool visible)
	~KisSelectionActionsPanel ()

Private Member Functions
void	drawActionBarBackground (QPainter &gc) const
bool	handleMove (QEvent *event, const QPoint &pos)
bool	handlePress (QEvent *event, const QPoint &pos, Qt::MouseButton button=Qt::LeftButton)
bool	handleRelease (QEvent *event, const QPoint &pos)
QPoint	initialDragHandlePosition () const
QPoint	mouseEventPos (const QMouseEvent *mouseEvent)
void	movePanelWidgets ()
	Moves all the widgets that are a part of the panel.
QPoint	tabletEventPos (const QTabletEvent *tabletEvent)
bool	touchEventPos (const QTouchEvent *touchEvent, QPoint &outPos)
constexpr QPoint	transformHandleCoords (QPoint pos)
QPoint	updateCanvasBoundaries (QPoint position, QWidget *canvasWidget) const

Private Attributes
QScopedPointer< Private >	d

Detailed Description

Definition at line 30 of file kis_selection_actions_panel.h.

Constructor & Destructor Documentation

KisSelectionActionsPanel() [1/2]

KisSelectionActionsPanel::KisSelectionActionsPanel ( )

delete

KisSelectionActionsPanel() [2/2]

KisSelectionActionsPanel::KisSelectionActionsPanel

(

KisViewManager *

viewManager

)

Definition at line 87 of file kis_selection_actions_panel.cpp.

    : d(new Private)
{
    d->m_viewManager = viewManager;
    d->m_selectionManager = viewManager->selectionManager();
 
    // Setup buttons...
    for (const ActionButtonData &buttonData : Private::buttonData()) {
        KisSelectionActionsPanelButton *button = new KisSelectionActionsPanelButton(buttonData.iconName, buttonData.tooltip, BUTTON_SIZE, viewManager->canvas());
        connect(button, &QAbstractButton::clicked, d->m_selectionManager, buttonData.slot);
        d->m_buttons.append(button);
    }
 
    d->m_handleWidget = new KisSelectionActionsPanelHandle(BUTTON_SIZE, viewManager->canvas());
}

References button(), BUTTON_SIZE, KisSelectionActionsPanel::Private::buttonData(), KisViewManager::canvas(), d, and KisViewManager::selectionManager().

~KisSelectionActionsPanel()

KisSelectionActionsPanel::~KisSelectionActionsPanel

(

)

Definition at line 103 of file kis_selection_actions_panel.cpp.

{
}

Member Function Documentation

canvasWidgetChanged()

void KisSelectionActionsPanel::canvasWidgetChanged

(

KisCanvasWidgetBase *

canvas

)

Definition at line 231 of file kis_selection_actions_panel.cpp.

{
 
    Q_FOREACH(QWidget* btn, d->m_buttons)  {
        btn->setParent(canvas->widget());
        btn->show();
    }
 
    d->m_handleWidget->setParent(canvas->widget());
    d->m_handleWidget->show();
}

References d, and KisAbstractCanvasWidget::widget().

draw()

void KisSelectionActionsPanel::draw

(

QPainter &

painter

)

Definition at line 107 of file kis_selection_actions_panel.cpp.

{
    KisSelectionSP selection = d->m_viewManager->selection();
 
    if (!selection || !d->m_enabled || !d->m_visible) {
        return;
    }
 
    drawActionBarBackground(painter);
    Q_FOREACH(KisSelectionActionsPanelButton* button, d->m_buttons){
        button->draw(painter);
    }
 
    d->m_handleWidget->draw(painter);
}

References button(), d, and drawActionBarBackground().

drawActionBarBackground()

void KisSelectionActionsPanel::drawActionBarBackground ( QPainter & gc ) const

private

Definition at line 293 of file kis_selection_actions_panel.cpp.

{
    const int cornerRadius = 4;
    QColor outlineColor = Qt::darkGray;
    const QColor bgColor = qApp->palette().window().color();
    QColor bgColorTrans = bgColor;
    bgColorTrans.setAlpha(80);
    const int outline_width = 4;
 
    //an outer 1px wide outline for contrast against the background
    QRectF contrastOutline(d->m_dragHandle->position - QPoint(outline_width + 1,outline_width + 1), QSize(d->m_actionBarWidth, BUTTON_SIZE) +QSize(outline_width + 1,outline_width + 1) * 2);
    QRectF midOutline(d->m_dragHandle->position - QPoint(outline_width,outline_width), QSize(d->m_actionBarWidth, BUTTON_SIZE) +QSize(outline_width,outline_width) * 2);
    //Add a bit of padding here for the icons
    QRectF centerBackground(d->m_dragHandle->position - QPoint(outline_width,outline_width) / 2, QSize(d->m_actionBarWidth - BUTTON_SIZE, BUTTON_SIZE) +QSize(outline_width,outline_width));
    QPainterPath bgPath;
    QPainterPath outlinePath;
    QPainterPath contrastOutlinePath;
 
    bgPath.addRoundedRect(centerBackground, cornerRadius, cornerRadius);
    outlinePath.addRoundedRect(midOutline, cornerRadius, cornerRadius);
    contrastOutlinePath.addRoundedRect(contrastOutline, cornerRadius, cornerRadius);
 
    painter.fillPath(contrastOutlinePath, bgColorTrans);
    painter.fillPath(outlinePath, outlineColor);
    painter.fillPath(bgPath, bgColor);
}

References BUTTON_SIZE, and d.

eventFilter()

bool KisSelectionActionsPanel::eventFilter ( QObject * obj, QEvent * event )

override

Definition at line 170 of file kis_selection_actions_panel.cpp.

{
    switch (event->type()) {
    case QEvent::MouseButtonPress: {
        const QMouseEvent *mouseEvent = static_cast<QMouseEvent *>(event);
        return handlePress(event, mouseEventPos(mouseEvent), mouseEvent->button());
    }
    case QEvent::TabletPress: {
        const QTabletEvent *tabletEvent = static_cast<QTabletEvent *>(event);
        return handlePress(event, tabletEventPos(tabletEvent));
    }
    case QEvent::TouchBegin: {
        const QTouchEvent *touchEvent = static_cast<QTouchEvent *>(event);
        QPoint pos;
        if (touchEventPos(touchEvent, pos)) {
            return handlePress(event, pos);
        }
        break;
    }
 
    case QEvent::MouseMove:
        if (d->m_pressed) {
            const QMouseEvent *mouseEvent = static_cast<QMouseEvent *>(event);
            return handleMove(event, mouseEventPos(mouseEvent));
        }
        break;
    case QEvent::TabletMove:
        if (d->m_pressed) {
            const QTabletEvent *tabletEvent = static_cast<QTabletEvent *>(event);
            return handleMove(event, tabletEventPos(tabletEvent));
        }
        break;
    case QEvent::TouchUpdate:
        if (d->m_pressed) {
            const QTouchEvent *touchEvent = static_cast<QTouchEvent *>(event);
            QPoint pos;
            if (touchEventPos(touchEvent, pos)) {
                return handleMove(event, pos);
            }
        }
        break;
 
    case QEvent::MouseButtonRelease:
    case QEvent::TabletRelease:
    case QEvent::TouchEnd:
    case QEvent::TouchCancel:
        if (d->m_pressed) {
            d->m_handleWidget->set_held(false);
            d->m_pressed = false;
            event->accept();
            return true;
        }
        break;
 
    default:
        break;
    }
    return false;
}

References d, handleMove(), handlePress(), mouseEventPos(), tabletEventPos(), and touchEventPos().

handleMove()

bool KisSelectionActionsPanel::handleMove ( QEvent * event, const QPoint & pos )

private

Definition at line 339 of file kis_selection_actions_panel.cpp.

{
    QWidget *canvasWidget = d->m_viewManager->canvas();
    QPoint newPos = pos - d->m_dragHandle->dragOrigin;
    d->m_dragHandle->position = updateCanvasBoundaries(newPos, canvasWidget);
    movePanelWidgets();
    canvasWidget->update();
    event->accept();
    return true;
}

References d, movePanelWidgets(), and updateCanvasBoundaries().

handlePress()

bool KisSelectionActionsPanel::handlePress ( QEvent * event, const QPoint & pos, Qt::MouseButton button = Qt::LeftButton )

private

Definition at line 320 of file kis_selection_actions_panel.cpp.

{
    if (d->m_pressed) {
        event->accept();
        return true;
    }
 
    if (button == Qt::LeftButton) {
        d->m_pressed = true;
        d->m_dragHandle->dragOrigin = pos - d->m_dragHandle->position;
        d->m_handleWidget->set_held(true);
 
        event->accept();
        return true;
    }
 
    return false;
}

References button(), and d.

handleRelease()

bool KisSelectionActionsPanel::handleRelease ( QEvent * event, const QPoint & pos )

private

initialDragHandlePosition()

QPoint KisSelectionActionsPanel::initialDragHandlePosition ( ) const

private

Definition at line 273 of file kis_selection_actions_panel.cpp.

{
    KisSelectionSP selection = d->m_viewManager->selection();
    KisCanvasWidgetBase *canvas = dynamic_cast<KisCanvasWidgetBase*>(d->m_viewManager->canvas());
    KIS_ASSERT(selection);
    KIS_ASSERT(canvas);
 
    QRectF selectionBounds = selection->selectedRect();
    int selectionBottom = selectionBounds.bottom();
    QPointF selectionCenter = selectionBounds.center();
    QPointF bottomCenter(selectionCenter.x(), selectionBottom);
 
    QPointF widgetBottomCenter = canvas->coordinatesConverter()->imageToWidget(bottomCenter); // converts current selection's QPointF into canvasWidget's QPointF space
 
    widgetBottomCenter.setX(widgetBottomCenter.x() - (d->m_actionBarWidth / 2)); // centers toolbar midpoint with the selection center
    widgetBottomCenter.setY(widgetBottomCenter.y() + BUFFER_SPACE);
 
    return updateCanvasBoundaries(widgetBottomCenter.toPoint(), d->m_viewManager->canvas());
}

References BUFFER_SPACE, KisCanvasWidgetBase::coordinatesConverter(), d, KisCoordinatesConverter::imageToWidget(), KIS_ASSERT, KisSelection::selectedRect(), and updateCanvasBoundaries().

mouseEventPos()

QPoint KisSelectionActionsPanel::mouseEventPos ( const QMouseEvent * mouseEvent )

private

Definition at line 364 of file kis_selection_actions_panel.cpp.

{
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
    return transformHandleCoords(mouseEvent->position().toPoint());
#else
    return transformHandleCoords(mouseEvent->pos());
#endif
}

References transformHandleCoords().

movePanelWidgets()

void KisSelectionActionsPanel::movePanelWidgets ( )

private

Moves all the widgets that are a part of the panel.

Definition at line 350 of file kis_selection_actions_panel.cpp.

{
    d->m_handleWidget->move(d->m_dragHandle->position.x() + d->m_buttons.size() * BUTTON_SIZE, d->m_dragHandle->position.y());
    d->m_handleWidget->show();
 
    int i = 0;
    Q_FOREACH(KisSelectionActionsPanelButton *button, d->m_buttons) {
        int buttonPosition = i * BUTTON_SIZE;
        button->move(d->m_dragHandle->position.x() + buttonPosition, d->m_dragHandle->position.y());
        button->show();
        i++;
    }
}

References button(), BUTTON_SIZE, and d.

setEnabled()

void KisSelectionActionsPanel::setEnabled

(

bool

enabled

)

Definition at line 160 of file kis_selection_actions_panel.cpp.

{
    bool configurationChanged = enabled != d->m_enabled;
    d->m_enabled = enabled;
    if (configurationChanged) {
        // Reset visibility when configuration changes
        setVisible(d->m_visible);
    }
}

References d, and setVisible().

setVisible()

void KisSelectionActionsPanel::setVisible

(

bool

visible

)

Definition at line 123 of file kis_selection_actions_panel.cpp.

{
    QWidget *canvasWidget = dynamic_cast<QWidget *>(d->m_viewManager->canvas());
    if (!canvasWidget) {
        return;
    }
 
    p_visible &= d->m_enabled;
 
    const bool VISIBILITY_CHANGED = d->m_visible != p_visible;
    if (!VISIBILITY_CHANGED) {
        return;
    }
 
    if (d->m_viewManager->selection() && p_visible) { // Now visible!
        d->m_handleWidget->installEventFilter(this);
 
        if (!d->m_dragHandle) {
            d->m_dragHandle.reset(new Private::DragHandle());
            d->m_dragHandle->position = initialDragHandlePosition();
            movePanelWidgets();
        }
    } else { // Now hidden!
        d->m_handleWidget->removeEventFilter(this);
 
        for (KisSelectionActionsPanelButton *button : d->m_buttons) {
            button->hide();
        }
        d->m_handleWidget->hide();
 
        d->m_pressed = false;
        d->m_dragHandle.reset();
    }
 
    d->m_visible = p_visible;
}

References button(), d, initialDragHandlePosition(), and movePanelWidgets().

tabletEventPos()

QPoint KisSelectionActionsPanel::tabletEventPos ( const QTabletEvent * tabletEvent )

private

Definition at line 373 of file kis_selection_actions_panel.cpp.

{
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
    return transformHandleCoords(tabletEvent->position().toPoint());
#else
    return transformHandleCoords(tabletEvent->pos());
#endif
}

References transformHandleCoords().

touchEventPos()

bool KisSelectionActionsPanel::touchEventPos ( const QTouchEvent * touchEvent, QPoint & outPos )

private

Definition at line 382 of file kis_selection_actions_panel.cpp.

{
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
    if (touchEvent->pointCount() < 1) {
        return false;
    } else {
        outPos = transformHandleCoords(touchEvent->points().first().position().toPoint());
        return true;
    }
#else
    const QList<QTouchEvent::TouchPoint> &touchPoints = touchEvent->touchPoints();
    if (touchPoints.isEmpty()) {
        return false;
    } else {
        outPos = transformHandleCoords(touchPoints.first().pos().toPoint());
        return true;
    }
#endif
}

References transformHandleCoords().

transformHandleCoords()

constexpr QPoint KisSelectionActionsPanel::transformHandleCoords ( QPoint pos )

constexprprivate

Definition at line 402 of file kis_selection_actions_panel.cpp.

                                                                           {
    return d->m_dragHandle->position + pos;
}

References d.

updateCanvasBoundaries()

QPoint KisSelectionActionsPanel::updateCanvasBoundaries ( QPoint position, QWidget * canvasWidget ) const

private

Definition at line 243 of file kis_selection_actions_panel.cpp.

{
    QRect canvasBounds = canvasWidget->rect();
 
    const int ACTION_BAR_WIDTH = d->m_actionBarWidth;
    const int ACTION_BAR_HEIGHT = BUTTON_SIZE;
 
    int pos_x_min = canvasBounds.left() + BUFFER_SPACE;
    int pos_x_max = canvasBounds.right() - ACTION_BAR_WIDTH - BUFFER_SPACE;
 
    int pos_y_min = canvasBounds.top() + BUFFER_SPACE;
    int pos_y_max = canvasBounds.bottom() - ACTION_BAR_HEIGHT - BUFFER_SPACE;
 
    //Ensure that max is always bigger than min
    //If the window is small enough max could be smaller than min
    if (pos_x_max < pos_x_min) {
        pos_x_max = pos_x_min;
    }
 
    //It is pretty implausible for it to happen vertically but better safe than sorry
    if (pos_y_max < pos_y_min) {
        pos_y_max = pos_y_min;
    }
 
    position.setX(qBound(pos_x_min, position.x(), pos_x_max));
    position.setY(qBound(pos_y_min, position.y(), pos_y_max));
 
    return position;
}

References BUFFER_SPACE, BUTTON_SIZE, and d.

Member Data Documentation

d

QScopedPointer<Private> KisSelectionActionsPanel::d

private

Definition at line 65 of file kis_selection_actions_panel.h.

---

The documentation for this class was generated from the following files:

• libs/ui/kis_selection_actions_panel.h
• libs/ui/kis_selection_actions_panel.cpp