File indexing completed on 2024-05-12 15:56:52

 /* This file is part of the KDE project
  *
  * SPDX-FileCopyrightText: 2005-2010 Boudewijn Rempt <boud@valdyas.org>
  * SPDX-FileCopyrightText: 2006-2008 Thomas Zander <zander@kde.org>
  * SPDX-FileCopyrightText: 2006 Thorsten Zachmann <zachmann@kde.org>
  * SPDX-FileCopyrightText: 2008 Jan Hambrecht <jaham@gmx.net>
  *
  * SPDX-License-Identifier: LGPL-2.0-or-later
  */
 // flake
 #include "KoToolManager.h"
 #include "KoToolManager_p.h"
 #include "KoToolRegistry.h"
 #include "KoToolProxy.h"
 #include "KoToolProxy_p.h"
 #include "KoSelection.h"
 #include "KoCanvasController.h"
 #include "KoCanvasControllerWidget.h"
 #include "KoShape.h"
 #include "KoShapeLayer.h"
 #include "KoShapeRegistry.h"
 #include "KoShapeManager.h"
 #include "KoSelectedShapesProxy.h"
 #include "KoCanvasBase.h"
 #include "KoPointerEvent.h"
 #include "tools/KoZoomTool.h"
 #include "kis_action_registry.h"
 #include "KoToolFactoryBase.h"
 #include "kis_assert.h"
 
 #include <krita_container_utils.h>
 
 // Qt + kde
 #include <QWidget>
 #include <QEvent>
 #include <QWheelEvent>
 #include <QMouseEvent>
 #include <QPaintEvent>
 #include <QTabletEvent>
 #include <QVBoxLayout>
 #include <QStringList>
 #include <QApplication>
 #include <kactioncollection.h>
 #include <kactioncategory.h>
 #include <FlakeDebug.h>
 
 #include <QAction>
 #include <klocalizedstring.h>
 #include <QKeySequence>
 #include <QStack>
 #include <QLabel>
 #include <QGlobalStatic>
 
 Q_GLOBAL_STATIC(KoToolManager, s_instance)
 
 
 class CanvasData
 {
 public:
     CanvasData(KoCanvasController *cc, const KoInputDevice &id)
         : activeTool(0),
           canvas(cc),
           inputDevice(id),
           dummyToolWidget(0),
           dummyToolLabel(0)
     {
     }
 
     ~CanvasData()
     {
         // the dummy tool widget does not necessarily have a parent and we create it, so we delete it.
         delete dummyToolWidget;
     }
 
     void activateToolActions()
     {
         toolActions.clear();
         disabledGlobalActions.clear();
 
         KisKActionCollection *windowActionCollection = canvas->actionCollection();
 
         if (!windowActionCollection) {
             qWarning() << "We haven't got an action collection";
             return;
         }
 
         QStringList globalActions;
 
         QMap<QKeySequence, QStringList> shortcutMap;
 
 //        qDebug() << "................... activating tool" << activeToolId;
 
         Q_FOREACH(QAction *action, windowActionCollection->actions()) {
 
             if (action->property("tool_action").isValid()) {
                 QStringList tools = action->property("tool_action").toStringList();
 
                 if (KoToolRegistry::instance()->keys().contains(action->objectName())) {
                     //qDebug() << "This action needs to be enabled!";
                     action->setEnabled(true);
                     toolActions << action->objectName();
                 }
                 else {
                     if (tools.contains(activeToolId) || action->property("always_enabled").toBool()) {
                         //qDebug() << "\t\tenabling";
                         action->setEnabled(true);
                         toolActions << action->objectName();
                     }
                     else {
                         //qDebug() << "\t\tDISabling";
                         action->setDisabled(true);
                     }
                 }
             }
             else {
                 globalActions << action->objectName();
             }
 
             Q_FOREACH(QKeySequence keySequence, action->shortcuts()) {
                 // After loading a custom shortcut profile, shortcuts can be defined as an empty string, which is not an empty shortcut
                 if (keySequence.toString() != "") {
                     if (shortcutMap.contains(keySequence)) {
                         shortcutMap[keySequence].append(action->objectName());
                     }
                     else {
                         shortcutMap[keySequence] = QStringList() << action->objectName();
                     }
                 }
             }
         }
 
         // Make sure the tool's actions override the global actions that aren't associated with the tool.
         Q_FOREACH(const QKeySequence &k, shortcutMap.keys()) {
             if (shortcutMap[k].size() > 1) {
                 QStringList actions = shortcutMap[k];
                 //qDebug() << k << actions;
                 bool toolActionFound = false;
                 Q_FOREACH(const QString &action, actions) {
                     if (toolActions.contains(action)) {
                         toolActionFound = true;
                     }
                 }
                 Q_FOREACH(const QString &action, actions) {
                     if (toolActionFound && globalActions.contains(action)) {
                         //qDebug() << "\tdisabling global action" << action;
                         windowActionCollection->action(action)->setEnabled(false);
                         disabledGlobalActions << action;
                     }
                 }
                 //qDebug() << k << shortcutMap[k];
             }
         }
 
         windowActionCollection->readSettings(); // The shortcuts might have been configured in the meantime.
     }
 
     void deactivateToolActions()
     {
         if (!activeTool)
             return;
 
         //qDebug() << "............... deactivating previous tool because activating" << activeToolId;
 
         KisKActionCollection *windowActionCollection = canvas->actionCollection();
 
         Q_FOREACH(const QString &action, toolActions) {
             //qDebug() << "disabling" << action;
             windowActionCollection->action(action)->setDisabled(true);
         }
         Q_FOREACH(const QString &action, disabledGlobalActions) {
             //qDebug() << "enabling" << action;
             windowActionCollection->action(action)->setEnabled(true);
         }
     }
 
     KoToolBase *activeTool;     // active Tool
     QString activeToolId;   // the id of the active Tool
     QString activationShapeId; // the shape-type (KoShape::shapeId()) the activeTool 'belongs' to.
     QHash<QString, KoToolBase*> allTools; // all the tools that are created for this canvas.
     QList<KoToolBase*> mostRecentTools; // ordered unique list of tools starting from the most recently used, except for the active tool.
     KoCanvasController *const canvas;
     const KoInputDevice inputDevice;
     QWidget *dummyToolWidget;  // the widget shown in the toolDocker.
     QLabel *dummyToolLabel;
     QStringList toolActions;
     QStringList disabledGlobalActions;
 };
 
 
 // ******** KoToolManager **********
 KoToolManager::KoToolManager()
     : QObject(),
       d(new Private(this))
 {
     connect(QApplication::instance(), SIGNAL(focusChanged(QWidget*,QWidget*)),
             this, SLOT(movedFocus(QWidget*,QWidget*)));
 }
 
 KoToolManager::~KoToolManager()
 {
     delete d;
 }
 
 QList<KoToolAction*> KoToolManager::toolActionList() const
 {
     return d->toolActionList;
 }
 
 void KoToolManager::requestToolActivation(KoCanvasController * controller)
 {
     if (d->canvasses.contains(controller)) {
         d->switchTool(d->canvasses.value(controller).first()->activeToolId);
     }
 }
 
 KoInputDevice KoToolManager::currentInputDevice() const
 {
     return d->inputDevice;
 }
 
 void KoToolManager::registerToolActions(KisKActionCollection *ac, KoCanvasController *controller)
 {
     Q_ASSERT(controller);
     Q_ASSERT(ac);
 
     d->setup();
 
     if (!d->canvasses.contains(controller)) {
         return;
     }
 }
 
 void KoToolManager::addController(KoCanvasController *controller)
 {
     Q_ASSERT(controller);
     if (d->canvasses.contains(controller))
         return;
     d->setup();
     d->attachCanvas(controller);
     connect(controller->proxyObject, SIGNAL(destroyed(QObject*)), this, SLOT(attemptCanvasControllerRemoval(QObject*)));
     connect(controller->proxyObject, SIGNAL(canvasRemoved(KoCanvasController*)), this, SLOT(detachCanvas(KoCanvasController*)));
     connect(controller->proxyObject, SIGNAL(canvasSet(KoCanvasController*)), this, SLOT(attachCanvas(KoCanvasController*)));
 }
 
 void KoToolManager::removeCanvasController(KoCanvasController *controller)
 {
     Q_ASSERT(controller);
     disconnect(controller->proxyObject, SIGNAL(canvasRemoved(KoCanvasController*)), this, SLOT(detachCanvas(KoCanvasController*)));
     disconnect(controller->proxyObject, SIGNAL(canvasSet(KoCanvasController*)), this, SLOT(attachCanvas(KoCanvasController*)));
     d->detachCanvas(controller);
 }
 
 void KoToolManager::attemptCanvasControllerRemoval(QObject* controller)
 {
     KoCanvasControllerProxyObject* controllerActual = qobject_cast<KoCanvasControllerProxyObject*>(controller);
     if (controllerActual) {
         removeCanvasController(controllerActual->canvasController());
     }
 }
 
 void KoToolManager::switchToolRequested(const QString & id)
 {
     d->switchTool(id);
 }
 
 void KoToolManager::switchInputDeviceRequested(const KoInputDevice &id)
 {
     if (!d->canvasData) return;
     d->switchInputDevice(id);
 }
 
 void KoToolManager::switchBackRequested()
 {
     if (!d->canvasData) return;
     if (d->canvasData->mostRecentTools.isEmpty()) return;
     d->switchTool(d->canvasData->mostRecentTools.first()->toolId());
 }
 
 KoToolBase *KoToolManager::toolById(KoCanvasBase *canvas, const QString &id) const
 {
     Q_ASSERT(canvas);
     Q_FOREACH (KoCanvasController *controller, d->canvasses.keys()) {
         if (controller->canvas() == canvas)
             return d->canvasData->allTools.value(id);
     }
     return 0;
 }
 
 KoCanvasController *KoToolManager::activeCanvasController() const
 {
     if (! d->canvasData) return 0;
     return d->canvasData->canvas;
 }
 
 QString KoToolManager::preferredToolForSelection(const QList<KoShape*> &shapes)
 {
     QSet<QString> shapeTypes;
     Q_FOREACH (KoShape *shape, shapes) {
         shapeTypes << shape->shapeId();
     }
     //KritaUtils::makeContainerUnique(types);
 
     QString toolType = KoInteractionTool_ID;
     int prio = INT_MAX;
     Q_FOREACH (KoToolAction *helper, d->toolActionList) {
         if (helper->priority() >= prio)
             continue;
 
         bool toolWillWork = false;
         foreach (const QString &type, shapeTypes) {
             if (helper->toolFactory()->activationShapeId().split(',').contains(type)) {
                 toolWillWork = true;
                 break;
             }
         }
 
         if (toolWillWork) {
             toolType = helper->id();
             prio = helper->priority();
         }
     }
     return toolType;
 }
 
 void KoToolManager::initializeCurrentToolForCanvas()
 {
     KIS_ASSERT_RECOVER_RETURN(d->canvasData);
 
     // make a full reconnect cycle for the currently active tool
     d->disconnectActiveTool();
     d->connectActiveTool();
     d->postSwitchTool();
 }
 
 void KoToolManager::themeChanged()
 {
     for (const QList<CanvasData*> &canvasDataList : d->canvasses) {
         for (CanvasData *canvasData : canvasDataList) {
             for (KoToolBase *tool : canvasData->allTools) {
                 tool->updateOptionsWidgetIcons();
             }
         }
     }
 }
 
 KoToolManager* KoToolManager::instance()
 {
     return s_instance;
 }
 
 QString KoToolManager::activeToolId() const
 {
     if (!d->canvasData) return QString();
     return d->canvasData->activeToolId;
 }
 
 
 KoToolManager::Private *KoToolManager::priv()
 {
     return d;
 }
 
 
 /**** KoToolManager::Private ****/
 
 KoToolManager::Private::Private(KoToolManager *qq)
     : q(qq),
       canvasData(0),
       layerExplicitlyDisabled(false)
 {
 }
 
 KoToolManager::Private::~Private()
 {
     qDeleteAll(toolActionList);
 }
 
 // helper method.
 CanvasData *KoToolManager::Private::createCanvasData(KoCanvasController *controller, const KoInputDevice &device)
 {
     QHash<QString, KoToolBase*> toolsHash;
     Q_FOREACH (KoToolAction *toolAction, toolActionList) {
         KoToolBase* tool = createTool(controller, toolAction);
         if (tool) { // only if a real tool was created
             toolsHash.insert(tool->toolId(), tool);
         }
     }
 
     CanvasData *cd = new CanvasData(controller, device);
     cd->allTools = toolsHash;
     return cd;
 }
 
 KoToolBase *KoToolManager::Private::createTool(KoCanvasController *controller, KoToolAction *toolAction)
 {
     QHash<QString, KoToolBase*> origHash;
 
     if (canvasses.contains(controller)) {
         origHash = canvasses.value(controller).first()->allTools;
     }
 
     if (origHash.contains(toolAction->id())) {
         return origHash.value(toolAction->id());
     }
 
     debugFlake << "Creating tool" << toolAction->id() << ". Activated on:" << toolAction->visibilityCode() << ", prio:" << toolAction->priority();
 
     KoToolBase *tool = toolAction->toolFactory()->createTool(controller->canvas());
     if (tool) {
         tool->setFactory(toolAction->toolFactory());
         tool->setObjectName(toolAction->id());
     }
 
     KoZoomTool *zoomTool = dynamic_cast<KoZoomTool*>(tool);
     if (zoomTool) {
         zoomTool->setCanvasController(controller);
     }
 
     return tool;
 }
 
 void KoToolManager::Private::setup()
 {
     if (toolActionList.size() > 0)
         return;
 
     KoShapeRegistry::instance();
     KoToolRegistry *registry = KoToolRegistry::instance();
     Q_FOREACH (const QString & id, registry->keys()) {
         toolActionList.append(new KoToolAction(registry->value(id)));
     }
 }
 
 void KoToolManager::Private::connectActiveTool()
 {
     if (canvasData->activeTool) {
         connect(canvasData->activeTool, SIGNAL(cursorChanged(QCursor)),
                 q, SLOT(updateCursor(QCursor)));
         connect(canvasData->activeTool, SIGNAL(activateTool(QString)),
                 q, SLOT(switchToolRequested(QString)));
         connect(canvasData->activeTool, SIGNAL(statusTextChanged(QString)),
                 q, SIGNAL(changedStatusText(QString)));
     }
 
     // we expect the tool to emit a cursor on activation.
     updateCursor(Qt::ForbiddenCursor);
 }
 
 
 
 void KoToolManager::Private::disconnectActiveTool()
 {
     if (canvasData->activeTool) {
         canvasData->deactivateToolActions();
         // repaint the decorations before we deactivate the tool as it might deleted
         // data needed for the repaint
         emit q->aboutToChangeTool(canvasData->canvas);
         canvasData->activeTool->deactivate();
         disconnect(canvasData->activeTool, SIGNAL(cursorChanged(QCursor)),
                    q, SLOT(updateCursor(QCursor)));
         disconnect(canvasData->activeTool, SIGNAL(activateTool(QString)),
                    q, SLOT(switchToolRequested(QString)));
         disconnect(canvasData->activeTool, SIGNAL(statusTextChanged(QString)),
                    q, SIGNAL(changedStatusText(QString)));
     }
 
     // emit a empty status text to clear status text from last active tool
     emit q->changedStatusText(QString());
 }
 
 void KoToolManager::Private::switchTool(const QString &id)
 {
     if (!canvasData) return;
 
     canvasData->activeToolId = id;
     KoToolBase *tool = canvasData->allTools.value(id);
     if (! tool) {
         return;
     }
 
     canvasData->activationShapeId = tool->factory()->activationShapeId();
 
     if (canvasData->activeTool == tool && tool->toolId() != KoInteractionTool_ID)
         return;
 
     disconnectActiveTool();
     if (canvasData->activeTool) {
         canvasData->mostRecentTools.prepend(canvasData->activeTool);
     }
     canvasData->activeTool = tool;
     canvasData->mostRecentTools.removeOne(tool);
     connectActiveTool();
     postSwitchTool();
 }
 
 void KoToolManager::Private::postSwitchTool()
 {
 #ifndef NDEBUG
     int canvasCount = 1;
     Q_FOREACH (QList<CanvasData*> list, canvasses) {
         bool first = true;
         Q_FOREACH (CanvasData *data, list) {
             if (first) {
                 debugFlake << "Canvas" << canvasCount++;
             }
             debugFlake << "  +- Tool:" << data->activeToolId  << (data == canvasData ? " *" : "");
             first = false;
         }
     }
 #endif
     Q_ASSERT(canvasData);
     if (!canvasData) return;
 
     QSet<KoShape*> shapesToOperateOn;
     if (canvasData->activeTool
             && canvasData->activeTool->canvas()
             && canvasData->activeTool->canvas()->shapeManager()) {
         KoSelection *selection = canvasData->activeTool->canvas()->shapeManager()->selection();
         Q_ASSERT(selection);
 #if QT_VERSION >= QT_VERSION_CHECK(5,14,0)
         QList<KoShape *> shapesDelegatesList = selection->selectedEditableShapesAndDelegates();
         if (!shapesDelegatesList.isEmpty()) {
             shapesToOperateOn = QSet<KoShape*>(shapesDelegatesList.begin(),
                                                shapesDelegatesList.end());
         }
 #else
         shapesToOperateOn = QSet<KoShape*>::fromList(selection->selectedEditableShapesAndDelegates());
 #endif
     }
 
     if (canvasData->canvas->canvas()) {
         // Caller of postSwitchTool expect this to be called to update the selected tool
         updateToolForProxy();
         canvasData->activeTool->activate(shapesToOperateOn);
         KoCanvasBase *canvas = canvasData->canvas->canvas();
         canvas->updateInputMethodInfo();
     } else {
         canvasData->activeTool->activate(shapesToOperateOn);
     }
 
     QList<QPointer<QWidget> > optionWidgetList = canvasData->activeTool->optionWidgets();
     if (optionWidgetList.empty()) { // no option widget.
         QWidget *toolWidget;
         QString title = canvasData->activeTool->factory()->toolTip();
         toolWidget = canvasData->dummyToolWidget;
         if (toolWidget == 0) {
             toolWidget = new QWidget();
             toolWidget->setObjectName("DummyToolWidget");
             QVBoxLayout *layout = new QVBoxLayout(toolWidget);
             layout->setMargin(3);
             canvasData->dummyToolLabel = new QLabel(toolWidget);
             layout->addWidget(canvasData->dummyToolLabel);
             layout->addItem(new QSpacerItem(1, 1, QSizePolicy::Minimum, QSizePolicy::Expanding));
             canvasData->dummyToolWidget = toolWidget;
         }
         canvasData->dummyToolLabel->setText(i18n("Active tool: %1", title));
         optionWidgetList.append(toolWidget);
     }
 
     // Activate the actions for the currently active tool
     canvasData->activateToolActions();
 
     emit q->changedTool(canvasData->canvas);
 
     emit q->toolOptionWidgetsChanged(canvasData->canvas, optionWidgetList);
 }
 
 
 void KoToolManager::Private::switchCanvasData(CanvasData *cd)
 {
     Q_ASSERT(cd);
 
     KoCanvasBase *oldCanvas = 0;
     KoInputDevice oldInputDevice;
 
     if (canvasData) {
         oldCanvas = canvasData->canvas->canvas();
         oldInputDevice = canvasData->inputDevice;
 
         if (canvasData->activeTool) {
             disconnectActiveTool();
         }
 
         KoToolProxy *proxy = proxies.value(oldCanvas);
         Q_ASSERT(proxy);
         proxy->setActiveTool(0);
     }
 
     canvasData = cd;
     inputDevice = canvasData->inputDevice;
 
     if (canvasData->activeTool) {
         connectActiveTool();
         postSwitchTool();
     }
 
     if (oldInputDevice != canvasData->inputDevice) {
         emit q->inputDeviceChanged(canvasData->inputDevice);
     }
 
     if (oldCanvas != canvasData->canvas->canvas()) {
         emit q->changedCanvas(canvasData->canvas->canvas());
     }
 }
 
 void KoToolManager::Private::detachCanvas(KoCanvasController *controller)
 {
     Q_ASSERT(controller);
     // check if we are removing the active canvas controller
     if (canvasData && canvasData->canvas == controller) {
         KoCanvasController *newCanvas = 0;
         // try to find another canvas controller beside the one we are removing
         Q_FOREACH (KoCanvasController* canvas, canvasses.keys()) {
             if (canvas != controller) {
                 // yay found one
                 newCanvas = canvas;
                 break;
             }
         }
         if (newCanvas) {
             switchCanvasData(canvasses.value(newCanvas).first());
         } else {
             disconnectActiveTool();
             emit q->toolOptionWidgetsChanged(controller, QList<QPointer<QWidget> >());
             // as a last resort just set a blank one
             canvasData = 0;
         }
     }
 
     KoToolProxy *proxy = proxies.value(controller->canvas());
     if (proxy)
         proxy->setActiveTool(0);
 
     QList<KoToolBase *> tools;
     Q_FOREACH (CanvasData *canvasData, canvasses.value(controller)) {
         Q_FOREACH (KoToolBase *tool, canvasData->allTools) {
             if (! tools.contains(tool)) {
                 tools.append(tool);
             }
         }
         delete canvasData;
     }
     Q_FOREACH (KoToolBase *tool, tools) {
         delete tool;
     }
     canvasses.remove(controller);
     emit q->changedCanvas(canvasData ? canvasData->canvas->canvas() : 0);
 }
 
 void KoToolManager::Private::attachCanvas(KoCanvasController *controller)
 {
     Q_ASSERT(controller);
     CanvasData *cd = createCanvasData(controller, KoInputDevice::mouse());
 
     // switch to new canvas as the active one.
     switchCanvasData(cd);
 
     inputDevice = cd->inputDevice;
     QList<CanvasData*> canvasses_;
     canvasses_.append(cd);
     canvasses[controller] = canvasses_;
 
     KoToolProxy *tp = proxies[controller->canvas()];
     if (tp)
         tp->priv()->setCanvasController(controller);
 
     if (cd->activeTool == 0) {
         // no active tool, so we activate the highest priority main tool
         int highestPriority = INT_MAX;
         KoToolAction * helper = 0;
         Q_FOREACH (KoToolAction * th, toolActionList) {
             if (th->section() == ToolBoxSection::Main) {
                 if (th->priority() < highestPriority) {
                     highestPriority = qMin(highestPriority, th->priority());
                     helper = th;
                 }
             }
         }
         if (helper)
             switchTool(helper->id());
     }
 
     Connector *connector = new Connector(controller->canvas()->shapeManager());
     connect(connector, SIGNAL(selectionChanged(QList<KoShape*>)), q,
             SLOT(selectionChanged(QList<KoShape*>)));
     connect(controller->canvas()->selectedShapesProxy(),
             SIGNAL(currentLayerChanged(const KoShapeLayer*)),
             q, SLOT(currentLayerChanged(const KoShapeLayer*)));
 
     emit q->changedCanvas(canvasData ? canvasData->canvas->canvas() : 0);
 }
 
 void KoToolManager::Private::movedFocus(QWidget *from, QWidget *to)
 {
     Q_UNUSED(from);
     // no canvas anyway or no focus set anyway?
     if (!canvasData || to == 0) {
         return;
     }
 
     // Check if this app is about QWidget-based KoCanvasControllerWidget canvasses
     // XXX: Focus handling for non-qwidget based canvases!
     KoCanvasControllerWidget *canvasControllerWidget = dynamic_cast<KoCanvasControllerWidget*>(canvasData->canvas);
     if (!canvasControllerWidget) {
         return;
     }
 
     // canvasWidget is set as focusproxy for KoCanvasControllerWidget,
     // so all focus checks are to be done against canvasWidget objects
 
     // focus returned to current canvas?
     if (to == canvasData->canvas->canvas()->canvasWidget()) {
         // nothing to do
         return;
     }
 
     // if the 'to' is one of our canvasWidgets, then switch.
 
     // for code simplicity the current canvas will be checked again,
     // but would have been caught already in the lines above, so no issue
     KoCanvasController *newCanvas = 0;
     Q_FOREACH (KoCanvasController* canvas, canvasses.keys()) {
         if (canvas->canvas()->canvasWidget() == to) {
             newCanvas = canvas;
             break;
         }
     }
 
     // none of our canvasWidgets got focus?
     if (newCanvas == 0) {
         return;
     }
 
     // switch to canvasdata matching inputdevice used last with this app instance
     Q_FOREACH (CanvasData *data, canvasses.value(newCanvas)) {
         if (data->inputDevice == inputDevice) {
             switchCanvasData(data);
             return;
         }
     }
     // if no such inputDevice for this canvas, then simply fallback to first one
     switchCanvasData(canvasses.value(newCanvas).first());
 }
 
 void KoToolManager::Private::updateCursor(const QCursor &cursor)
 {
     Q_ASSERT(canvasData);
     Q_ASSERT(canvasData->canvas);
     Q_ASSERT(canvasData->canvas->canvas());
     canvasData->canvas->canvas()->setCursor(cursor);
 }
 
 void KoToolManager::Private::selectionChanged(const QList<KoShape*> &shapes)
 {
     QList<QString> types;
     Q_FOREACH (KoShape *shape, shapes) {
         QSet<KoShape*> delegates = shape->toolDelegates();
         if (delegates.isEmpty()) { // no delegates, just the orig shape
             delegates << shape;
         }
 
         foreach (KoShape *shape2, delegates) {
             Q_ASSERT(shape2);
             if (! types.contains(shape2->shapeId())) {
                 types.append(shape2->shapeId());
             }
         }
     }
 
     // check if there is still a shape selected the active tool can work on
     // there needs to be at least one shape for a tool without an activationShapeId
     // to work
     // if not change the current tool to the default tool
 
     const QStringList activationShapeIds = canvasData->activationShapeId.split(',');
 
     if (!(canvasData->activationShapeId.isNull() && shapes.size() > 0)
             && !activationShapeIds.contains("flake/always")
             && !activationShapeIds.contains("flake/edit")) {
 
         bool currentToolWorks = false;
         foreach (const QString &type, types) {
             if (activationShapeIds.contains(type)) {
                 currentToolWorks = true;
                 break;
             }
         }
         if (!currentToolWorks) {
             switchTool(KoInteractionTool_ID);
         }
     }
 
     emit q->toolCodesSelected(types);
 }
 
 void KoToolManager::Private::currentLayerChanged(const KoShapeLayer *layer)
 {
     emit q->currentLayerChanged(canvasData->canvas, layer);
     layerExplicitlyDisabled = layer && !layer->isShapeEditable();
     updateToolForProxy();
 
     debugFlake << "Layer changed to" << layer << "explicitly disabled:" << layerExplicitlyDisabled;
 }
 
 void KoToolManager::Private::updateToolForProxy()
 {
     KoToolProxy *proxy = proxies.value(canvasData->canvas->canvas());
     if(!proxy) return;
 
     bool canUseTool = !layerExplicitlyDisabled || canvasData->activationShapeId.endsWith(QLatin1String("/always"));
     proxy->setActiveTool(canUseTool ? canvasData->activeTool : 0);
 }
 
 void KoToolManager::Private::switchInputDevice(const KoInputDevice &device)
 {
     Q_ASSERT(canvasData);
     if (!canvasData) return;
     if (inputDevice == device) return;
     if (inputDevice.isMouse() && device.isMouse()) return;
     if (device.isMouse() && !inputDevice.isMouse()) {
         // we never switch back to mouse from a tablet input device, so the user can use the
         // mouse to edit the settings for a tool activated by a tablet. See bugs
         // https://bugs.kde.org/show_bug.cgi?id=283130 and https://bugs.kde.org/show_bug.cgi?id=285501.
         // We do continue to switch between tablet devices, thought.
         return;
     }
 
     QList<CanvasData*> items = canvasses[canvasData->canvas];
 
     // search for a canvasdata object for the current input device
     Q_FOREACH (CanvasData *cd, items) {
         if (cd->inputDevice == device) {
             switchCanvasData(cd);
 
             if (!canvasData->activeTool) {
                 switchTool(KoInteractionTool_ID);
             }
 
             return;
         }
     }
 
     // still here?  That means we need to create a new CanvasData instance with the current InputDevice.
     CanvasData *cd = createCanvasData(canvasData->canvas, device);
     // switch to new canvas as the active one.
     QString oldTool = canvasData->activeToolId;
 
     items.append(cd);
     canvasses[cd->canvas] = items;
 
     switchCanvasData(cd);
 
     switchTool(oldTool);
 }
 
 void KoToolManager::Private::registerToolProxy(KoToolProxy *proxy, KoCanvasBase *canvas)
 {
     proxies.insert(canvas, proxy);
     Q_FOREACH (KoCanvasController *controller, canvasses.keys()) {
         if (controller->canvas() == canvas) {
             proxy->priv()->setCanvasController(controller);
             break;
         }
     }
 }
 
 //have to include this because of Q_PRIVATE_SLOT
 #include "moc_KoToolManager.cpp"