File indexing completed on 2024-05-19 04:24:59

 /* This file is part of the KDE project
  * SPDX-FileCopyrightText: 2006, 2010 Thomas Zander <zander@kde.org>
  * SPDX-FileCopyrightText: 2011 Jan Hambrecht <jaham@gmx.net>
  *
  * SPDX-License-Identifier: LGPL-2.0-or-later
  */
 
 #include <QDebug>
 
 #include <QAction>
 
 #include "KoToolBase.h"
 #include "KoToolBase_p.h"
 #include "KoToolFactoryBase.h"
 #include "KoCanvasBase.h"
 #include "KoPointerEvent.h"
 #include "KoDocumentResourceManager.h"
 #include "KoCanvasResourceProvider.h"
 #include "KoViewConverter.h"
 #include "KoShapeController.h"
 #include "KoShapeControllerBase.h"
 #include "KoToolSelection.h"
 #include "KoCanvasController.h"
 #include "KoToolProxy.h"
 #include <kis_icon_utils.h>
 
 #include <klocalizedstring.h>
 #include <kactioncollection.h>
 #include <QWidget>
 #include <QFile>
 #include <QDomDocument>
 #include <QDomElement>
 #include <QApplication>
 
 KoToolBase::KoToolBase(KoCanvasBase *canvas)
     : d_ptr(new KoToolBasePrivate(this, canvas))
 {
     Q_D(KoToolBase);
     d->connectSignals();
 }
 
 KoToolBase::KoToolBase(KoToolBasePrivate &dd)
     : d_ptr(&dd)
 {
     Q_D(KoToolBase);
     d->connectSignals();
 }
 
 KoToolBase::~KoToolBase()
 {
     delete d_ptr;
 }
 
 
 bool KoToolBase::isActivated() const
 {
     Q_D(const KoToolBase);
     return d->isActivated;
 }
 
 KoPointerEvent *KoToolBase::lastDeliveredPointerEvent() const
 {
     Q_D(const KoToolBase);
 
     if (!d->canvas) return 0;
     if (!d->canvas->toolProxy()) return 0;
 
     return d->canvas->toolProxy()->lastDeliveredPointerEvent();
 }
 
 void KoToolBase::activate(const QSet<KoShape *> &shapes)
 {
     Q_UNUSED(shapes);
 
     Q_D(KoToolBase);
     d->isActivated = true;
 }
 
 void KoToolBase::deactivate()
 {
     Q_D(KoToolBase);
     d->isActivated = false;
 }
 
 void KoToolBase::canvasResourceChanged(int key, const QVariant & res)
 {
     Q_UNUSED(key);
     Q_UNUSED(res);
 }
 
 void KoToolBase::documentResourceChanged(int key, const QVariant &res)
 {
     Q_UNUSED(key);
     Q_UNUSED(res);
 }
 
 bool KoToolBase::wantsAutoScroll() const
 {
     return true;
 }
 
 void KoToolBase::mouseDoubleClickEvent(KoPointerEvent *event)
 {
     event->ignore();
 }
 
 void KoToolBase::mouseTripleClickEvent(KoPointerEvent *event)
 {
     event->ignore();
 }
 
 void KoToolBase::keyPressEvent(QKeyEvent *e)
 {
     e->ignore();
 }
 
 void KoToolBase::keyReleaseEvent(QKeyEvent *e)
 {
     e->ignore();
 }
 
 
 void KoToolBase::explicitUserStrokeEndRequest()
 {
 }
 
 QVariant KoToolBase::inputMethodQuery(Qt::InputMethodQuery query) const
 {
     Q_D(const KoToolBase);
     if (d->canvas->canvasWidget() == 0)
         return QVariant();
 
     switch (query) {
     case Qt::ImEnabled:
         return isInTextMode();
     case Qt::ImCursorRectangle:
         return QRect(d->canvas->canvasWidget()->width() / 2, 0, 1, d->canvas->canvasWidget()->height());
     case Qt::ImFont:
         return d->canvas->canvasWidget()->font();
     default:
         return QVariant();
     }
 }
 
 void KoToolBase::inputMethodEvent(QInputMethodEvent * event)
 {
     if (! event->commitString().isEmpty()) {
         QKeyEvent ke(QEvent::KeyPress, -1, QFlags<Qt::KeyboardModifier>(), event->commitString());
         keyPressEvent(&ke);
     }
     event->accept();
 }
 
 void KoToolBase::focusInEvent(QFocusEvent *event)
 {
     event->ignore();
 }
 
 void KoToolBase::focusOutEvent(QFocusEvent *event)
 {
     event->ignore();
 }
 
 void KoToolBase::customPressEvent(KoPointerEvent * event)
 {
     event->ignore();
 }
 
 void KoToolBase::customReleaseEvent(KoPointerEvent * event)
 {
     event->ignore();
 }
 
 void KoToolBase::customMoveEvent(KoPointerEvent * event)
 {
     event->ignore();
 }
 
 void KoToolBase::useCursor(const QCursor &cursor)
 {
     Q_D(KoToolBase);
     d->currentCursor = cursor;
     emit cursorChanged(d->currentCursor);
 }
 
 QList<QPointer<QWidget> > KoToolBase::optionWidgets()
 {
     Q_D(KoToolBase);
     if (!d->optionWidgetsCreated) {
         d->optionWidgets = createOptionWidgets();
         d->optionWidgetsCreated = true;
     }
     return d->optionWidgets;
 }
 
 QAction *KoToolBase::action(const QString &name) const
 {
     Q_D(const KoToolBase);
     if (d->canvas && d->canvas->canvasController() && d->canvas->canvasController()) {
         return d->canvas->canvasController()->actionCollection()->action(name);
     }
     return 0;
 }
 
 QWidget * KoToolBase::createOptionWidget()
 {
     return 0;
 }
 
 QList<QPointer<QWidget> >  KoToolBase::createOptionWidgets()
 {
     QList<QPointer<QWidget> > ow;
     if (QWidget *widget = createOptionWidget()) {
         if (widget->objectName().isEmpty()) {
             widget->setObjectName(toolId());
         }
         ow.append(widget);
     }
     return ow;
 }
 
 void KoToolBase::setFactory(KoToolFactoryBase *factory)
 {
     Q_D(KoToolBase);
     d->factory = factory;
 }
 
 KoToolFactoryBase* KoToolBase::factory() const
 {
     Q_D(const KoToolBase);
     return d->factory;
 }
 
 QString KoToolBase::toolId() const
 {
     Q_D(const KoToolBase);
     return d->factory ? d->factory->id() : 0;
 }
 
 QCursor KoToolBase::cursor() const
 {
     Q_D(const KoToolBase);
     return d->currentCursor;
 }
 
 void KoToolBase::deleteSelection()
 {
 }
 
 void KoToolBase::cut()
 {
     copy();
     deleteSelection();
 }
 
 KoCanvasBase * KoToolBase::canvas() const
 {
     Q_D(const KoToolBase);
     return d->canvas;
 }
 
 void KoToolBase::setStatusText(const QString &statusText)
 {
     emit statusTextChanged(statusText);
 }
 
 int KoToolBase::handleRadius() const
 {
     Q_D(const KoToolBase);
     if (d->canvas
             && d->canvas->resourceManager()
        )
     {
         return d->canvas->resourceManager()->handleRadius();
     }
     else {
         return 3;
     }
 }
 
 qreal KoToolBase::handleDocRadius() const
 {
     Q_D(const KoToolBase);
     const KoViewConverter * converter = d->canvas->viewConverter();
     const QPointF doc = converter->viewToDocument(QPointF(handleRadius(), handleRadius()));
     return qMax(doc.x(), doc.y());
 }
 
 int KoToolBase::decorationThickness() const
 {
     Q_D(const KoToolBase);
     if (d->canvas
             && d->canvas->resourceManager()
        )
     {
         return d->canvas->resourceManager()->decorationThickness();
     }
     else {
         return 1;
     }
 }
 
 int KoToolBase::grabSensitivity() const
 {
     Q_D(const KoToolBase);
     if(d->canvas->shapeController()->resourceManager())
     {
         return d->canvas->shapeController()->resourceManager()->grabSensitivity();
     } else {
         return 3;
     }
 }
 
 QRectF KoToolBase::handleGrabRect(const QPointF &position) const
 {
     Q_D(const KoToolBase);
     const KoViewConverter * converter = d->canvas->viewConverter();
     uint handleSize = 2*grabSensitivity();
     QRectF r = converter->viewToDocument(QRectF(0, 0, handleSize, handleSize));
     r.moveCenter(position);
     return r;
 }
 
 QRectF KoToolBase::handlePaintRect(const QPointF &position) const
 {
     Q_D(const KoToolBase);
     const KoViewConverter * converter = d->canvas->viewConverter();
     uint handleSize = 2*handleRadius();
     QRectF r = converter->viewToDocument(QRectF(0, 0, handleSize, handleSize));
     r.moveCenter(position);
     return r;
 }
 
 void KoToolBase::setTextMode(bool value)
 {
     Q_D(KoToolBase);
     d->isInTextMode = value;
     qApp->inputMethod()->update(Qt::ImEnabled);
     emit textModeChanged(d->isInTextMode);
 }
 
 bool KoToolBase::paste()
 {
     return false;
 }
 
 bool KoToolBase::selectAll()
 {
     return false;
 }
 
 void KoToolBase::deselect()
 {
 }
 
 void KoToolBase::copy() const
 {
 }
 
 void KoToolBase::dragMoveEvent(QDragMoveEvent *event, const QPointF &point)
 {
     Q_UNUSED(event);
     Q_UNUSED(point);
 }
 
 void KoToolBase::dragLeaveEvent(QDragLeaveEvent *event)
 {
     Q_UNUSED(event);
 }
 
 void KoToolBase::dropEvent(QDropEvent *event, const QPointF &point)
 {
     Q_UNUSED(event);
     Q_UNUSED(point);
 }
 
 bool KoToolBase::hasSelection()
 {
     KoToolSelection *sel = selection();
     return (sel && sel->hasSelection());
 }
 
 KoToolSelection *KoToolBase::selection()
 {
     return 0;
 }
 
 void KoToolBase::repaintDecorations()
 {
     Q_D(KoToolBase);
 
     QRectF dirtyRect = d->lastDecorationsRect;
     d->lastDecorationsRect = decorationsRect();
     dirtyRect |= d->lastDecorationsRect;
 
     if (!dirtyRect.isEmpty()) {
         canvas()->updateCanvas(dirtyRect);
     }
 }
 
 QRectF KoToolBase::decorationsRect() const
 {
     return QRectF();
 }
 
 bool KoToolBase::isInTextMode() const
 {
     Q_D(const KoToolBase);
     return d->isInTextMode;
 }
 
 void KoToolBase::requestUndoDuringStroke()
 {
     /**
      * Default implementation just cancels the stroke
      */
     requestStrokeCancellation();
 }
 
 
 void KoToolBase::requestRedoDuringStroke()
 {
 }
 
 void KoToolBase::requestStrokeCancellation()
 {
 }
 
 void KoToolBase::requestStrokeEnd()
 {
 }
 
 bool KoToolBase::maskSyntheticEvents() const
 {
     Q_D(const KoToolBase);
     return d->maskSyntheticEvents;
 }
 
 void KoToolBase::setMaskSyntheticEvents(bool value)
 {
     Q_D(KoToolBase);
     d->maskSyntheticEvents = value;
 }
 
 void KoToolBase::updateOptionsWidgetIcons()
 {
     Q_D(KoToolBase);
     if (d->optionWidgetsCreated) {
         QObjectList objects;
         Q_FOREACH (QPointer<QWidget> widget, d->optionWidgets) {
             objects.append(widget);
         }
         while (!objects.isEmpty()) {
             QObject* object = objects.takeFirst();
             objects.append(object->children());
             KisIconUtils::updateIconCommon(object);
         }
     }
 }