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460 lines
13 KiB
460 lines
13 KiB
/*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <QtGui>
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#include <QtSvg>
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#include <QDrag>
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#include "UBGraphicsItemDelegate.h"
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#include "UBGraphicsDelegateFrame.h"
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#include "UBGraphicsScene.h"
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#include "UBGraphicsItemUndoCommand.h"
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#include "UBGraphicsItemTransformUndoCommand.h"
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#include "board/UBBoardController.h" // TODO UB 4.x clean that dependency
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#include "board/UBBoardView.h" // TODO UB 4.x clean that dependency
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#include "core/UBApplication.h"
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#include "core/UBApplicationController.h"
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#include "core/UBDisplayManager.h"
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#include "core/UBSettings.h"
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#include "core/UBPersistenceManager.h"
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#include "document/UBDocumentProxy.h"
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#include "UBGraphicsWidgetItem.h"
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#include "domain/UBAbstractWidget.h"
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#include "web/UBWebController.h"
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#include "frameworks/UBFileSystemUtils.h"
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#include "board/UBDrawingController.h"
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#include "core/memcheck.h"
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class UBGraphicsParaschoolEditorWidgetItem;
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UBGraphicsItemDelegate::UBGraphicsItemDelegate(QGraphicsItem* pDelegated, QObject * parent, bool respectRatio, bool canRotate)
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: QObject(parent)
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, mDelegated(pDelegated)
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, mDeleteButton(NULL)
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, mDuplicateButton(NULL)
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, mMenuButton(NULL)
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, mMenu(0)
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, mLockAction(0)
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, mShowOnDisplayAction(0)
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, mGotoContentSourceAction(0)
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, mFrame(0)
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, mFrameWidth(UBSettings::settings()->objectFrameWidth)
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, mAntiScaleRatio(1.0)
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, mCanRotate(canRotate)
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, mCanDuplicate(true)
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, mRespectRatio(respectRatio)
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, mMimeData(NULL)
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{
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// NOOP
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}
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void UBGraphicsItemDelegate::init()
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{
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mFrame = new UBGraphicsDelegateFrame(this, QRectF(0, 0, 0, 0), mFrameWidth, mRespectRatio);
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mFrame->hide();
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mFrame->setZValue(UBGraphicsScene::toolLayerStart + 1);
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mFrame->setFlag(QGraphicsItem::ItemIsSelectable, true);
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mDeleteButton = new DelegateButton(":/images/close.svg", mDelegated, mFrame);
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mButtons << mDeleteButton;
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connect(mDeleteButton, SIGNAL(clicked()), this, SLOT(remove()));
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if (canDuplicate()){
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mDuplicateButton = new DelegateButton(":/images/duplicate.svg", mDelegated, mFrame);
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connect(mDuplicateButton, SIGNAL(clicked(bool)), this, SLOT(duplicate()));
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mButtons << mDuplicateButton;
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}
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mMenuButton = new DelegateButton(":/images/menu.svg", mDelegated, mFrame);
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connect(mMenuButton, SIGNAL(clicked()), this, SLOT(showMenu()));
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mButtons << mMenuButton;
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buildButtons();
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foreach(DelegateButton* button, mButtons)
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{
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button->hide();
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button->setZValue(UBGraphicsScene::toolLayerStart + 2);
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button->setFlag(QGraphicsItem::ItemIsSelectable, true);
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}
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}
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UBGraphicsItemDelegate::~UBGraphicsItemDelegate()
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{
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// do not release mMimeData.
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// the mMimeData is owned by QDrag since the setMimeData call as specified in the documentation
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}
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QVariant UBGraphicsItemDelegate::itemChange(QGraphicsItem::GraphicsItemChange change, const QVariant &value)
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{
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if ((change == QGraphicsItem::ItemSelectedHasChanged
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|| change == QGraphicsItem::ItemPositionHasChanged
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|| change == QGraphicsItem::ItemTransformHasChanged)
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&& mDelegated->scene())
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{
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mAntiScaleRatio = 1 / (UBApplication::boardController->systemScaleFactor() * UBApplication::boardController->currentZoom());
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if (mDelegated->isSelected())
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{
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QList<QGraphicsItem*> items = mDelegated->scene()->selectedItems();
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foreach(QGraphicsItem* item, items)
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{
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if (item != mDelegated)
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{
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item->setSelected(false);
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}
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}
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}
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positionHandles();
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}
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if (change == QGraphicsItem::ItemPositionHasChanged
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|| change == QGraphicsItem::ItemTransformHasChanged
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|| change == QGraphicsItem::ItemZValueHasChanged)
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{
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UBGraphicsScene* ubScene = qobject_cast<UBGraphicsScene*>(mDelegated->scene());
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if(ubScene)
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ubScene->setModified(true);
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}
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return value;
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}
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bool UBGraphicsItemDelegate::mousePressEvent(QGraphicsSceneMouseEvent *event)
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{
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if(NULL != mMimeData)
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{
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QDrag* mDrag = new QDrag(event->widget());
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mDrag->setMimeData(mMimeData);
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mDrag->start();
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}
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startUndoStep();
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if (!mDelegated->isSelected())
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{
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mDelegated->setSelected(true);
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UBGraphicsScene* scene = static_cast<UBGraphicsScene*>(mDelegated->scene());
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qDebug() << mDelegated->zValue();
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qDebug() << scene->currentObjectZIndex();
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if (mDelegated->zValue() < scene->currentObjectZIndex() && !isLocked())
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mDelegated->setZValue(scene->getNextObjectZIndex());
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positionHandles();
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return true;
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}
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else
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{
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return false;
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}
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}
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void UBGraphicsItemDelegate::setMimeData(QMimeData *mimeData)
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{
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mMimeData = mimeData;
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}
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bool UBGraphicsItemDelegate::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
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{
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if(isLocked())
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{
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event->accept();
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return true;
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}
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else
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return false;
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}
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bool UBGraphicsItemDelegate::weelEvent(QGraphicsSceneWheelEvent *event)
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{
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Q_UNUSED(event);
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if( mDelegated->isSelected() )
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{
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// event->accept();
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return true;
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}
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else
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{
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// event->ignore();
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return false;
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}
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}
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bool UBGraphicsItemDelegate::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
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{
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Q_UNUSED(event);
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commitUndoStep();
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return true;
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}
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void UBGraphicsItemDelegate::positionHandles()
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{
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if (mDelegated->isSelected())
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{
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if (mFrame && !mFrame->scene() && mDelegated->scene())
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{
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mDelegated->scene()->addItem(mFrame);
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}
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mFrame->setAntiScale(mAntiScaleRatio);
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mFrame->positionHandles();
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mFrame->show();
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QTransform tr;
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tr.scale(mAntiScaleRatio, mAntiScaleRatio);
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mDeleteButton->setTransform(tr);
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qreal x = mFrame->rect().left()- mDeleteButton->renderer()->viewBox().width() * mAntiScaleRatio / 2;
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qreal y = mFrame->rect().top() - mDeleteButton->renderer()->viewBox().height() * mAntiScaleRatio / 2;
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mDeleteButton->setPos(x, y);
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if (!mDeleteButton->scene())
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{
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mDeleteButton->setParentItem(mFrame);//update parent for the case the item has been previously removed from scene
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if (mDelegated->scene())
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mDelegated->scene()->addItem(mDeleteButton);
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}
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mDeleteButton->show();
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bool shownOnDisplay = mDelegated->data(UBGraphicsItemData::ItemLayerType).toInt() != UBItemLayerType::Control;
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showHide(shownOnDisplay);
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lock(isLocked());
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for(int i = 1 ; i < mButtons.length(); i++)
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{
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DelegateButton* button = mButtons[i];
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button->setTransform(tr);
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button->setPos(x + (i * 1.6 * mFrameWidth * mAntiScaleRatio), y);
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if (!button->scene())
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{
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button->setParentItem(mFrame);//update parent for the case the item has been previously removed from scene
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if (mDelegated->scene())
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mDelegated->scene()->addItem(button);
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}
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button->show();
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}
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}
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else
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{
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foreach(DelegateButton* button, mButtons)
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button->hide();
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mFrame->hide();
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}
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}
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void UBGraphicsItemDelegate::remove(bool canUndo)
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{
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QGraphicsScene* scene = mDelegated->scene();
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if (scene)
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{
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foreach(DelegateButton* button, mButtons)
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scene->removeItem(button);
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scene->removeItem(mFrame);
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scene->removeItem(mDelegated);
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if (canUndo)
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{
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UBGraphicsItemUndoCommand *uc = new UBGraphicsItemUndoCommand((UBGraphicsScene*) scene, mDelegated, 0);
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UBApplication::undoStack->push(uc);
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}
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}
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}
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bool UBGraphicsItemDelegate::isLocked()
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{
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return mDelegated->data(UBGraphicsItemData::ItemLocked).toBool();
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}
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void UBGraphicsItemDelegate::duplicate()
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{
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// TODO UB 4.x .. rewrite .. .this is absurde ... we know what we are duplicating
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UBApplication::boardController->copy();
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UBApplication::boardController->paste();
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}
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void UBGraphicsItemDelegate::lock(bool locked)
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{
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if (locked)
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{
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mDelegated->setData(UBGraphicsItemData::ItemLocked, QVariant(true));
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qDebug() << "item's data is called for locked" << mDelegated->data(UBGraphicsItemData::ItemLocked);
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}
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else
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{
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mDelegated->setData(UBGraphicsItemData::ItemLocked, QVariant(false));
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qDebug() << "item's data is called for unlocked" << mDelegated->data(UBGraphicsItemData::ItemLocked);
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}
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mDelegated->update();
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mFrame->positionHandles();
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}
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void UBGraphicsItemDelegate::showHide(bool show)
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{
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if (show)
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{
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mDelegated->setData(UBGraphicsItemData::ItemLayerType, QVariant(UBItemLayerType::Object));
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}
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else
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{
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mDelegated->setData(UBGraphicsItemData::ItemLayerType, QVariant(UBItemLayerType::Control));
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}
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mDelegated->update();
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emit showOnDisplayChanged(show);
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}
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void UBGraphicsItemDelegate::gotoContentSource(bool checked)
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{
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Q_UNUSED(checked)
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UBItem* item = dynamic_cast<UBItem*>(mDelegated);
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if(item && !item->sourceUrl().isEmpty())
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{
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UBApplication::applicationController->showInternet();
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UBApplication::webController->loadUrl(item->sourceUrl());
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}
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}
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void UBGraphicsItemDelegate::startUndoStep()
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{
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mPreviousPosition = mDelegated->pos();
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mPreviousTransform = mDelegated->transform();
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mPreviousZValue = mDelegated->zValue();
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UBResizableGraphicsItem* resizableItem = dynamic_cast<UBResizableGraphicsItem*>(mDelegated);
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if (resizableItem)
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mPreviousSize = resizableItem->size();
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else
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mPreviousSize = QSizeF();
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}
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void UBGraphicsItemDelegate::commitUndoStep()
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{
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UBResizableGraphicsItem* resizableItem = dynamic_cast<UBResizableGraphicsItem*>(mDelegated);
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if (mDelegated->pos() != mPreviousPosition
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|| mDelegated->transform() != mPreviousTransform
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|| mDelegated->zValue() != mPreviousZValue
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|| (resizableItem && resizableItem->size() != mPreviousSize))
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{
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UBGraphicsItemTransformUndoCommand *uc =
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new UBGraphicsItemTransformUndoCommand(mDelegated,
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mPreviousPosition,
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mPreviousTransform,
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mPreviousZValue,
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mPreviousSize);
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UBApplication::undoStack->push(uc);
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}
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}
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void UBGraphicsItemDelegate::decorateMenu(QMenu* menu)
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{
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mLockAction = menu->addAction(tr("Locked"), this, SLOT(lock(bool)));
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QIcon lockIcon;
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lockIcon.addPixmap(QPixmap(":/images/locked.svg"), QIcon::Normal, QIcon::On);
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lockIcon.addPixmap(QPixmap(":/images/unlocked.svg"), QIcon::Normal, QIcon::Off);
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mLockAction->setIcon(lockIcon);
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mLockAction->setCheckable(true);
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mShowOnDisplayAction = mMenu->addAction(tr("Visible on Extended Screen"), this, SLOT(showHide(bool)));
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mShowOnDisplayAction->setCheckable(true);
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QIcon showIcon;
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showIcon.addPixmap(QPixmap(":/images/eyeOpened.svg"), QIcon::Normal, QIcon::On);
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showIcon.addPixmap(QPixmap(":/images/eyeClosed.svg"), QIcon::Normal, QIcon::Off);
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mShowOnDisplayAction->setIcon(showIcon);
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mGotoContentSourceAction = menu->addAction(tr("Go to Content Source"), this, SLOT(gotoContentSource(bool)));
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QIcon sourceIcon;
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sourceIcon.addPixmap(QPixmap(":/images/toolbar/internet.png"), QIcon::Normal, QIcon::On);
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mGotoContentSourceAction->setIcon(sourceIcon);
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}
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void UBGraphicsItemDelegate::updateMenuActionState()
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{
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if (mLockAction)
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mLockAction->setChecked(isLocked());
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if (mShowOnDisplayAction)
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{
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bool isControl = mDelegated->data(UBGraphicsItemData::ItemLayerType) == UBItemLayerType::Control;
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mShowOnDisplayAction->setChecked(!isControl);
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}
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if (mGotoContentSourceAction)
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{
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UBItem* item = dynamic_cast<UBItem*>(mDelegated);
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mGotoContentSourceAction->setEnabled(item && !item->sourceUrl().isEmpty());
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}
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}
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void UBGraphicsItemDelegate::showMenu()
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{
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if (!mMenu)
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{
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mMenu = new QMenu(UBApplication::boardController->controlView());
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decorateMenu(mMenu);
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}
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updateMenuActionState();
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UBBoardView* cv = UBApplication::boardController->controlView();
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QRect pinPos = cv->mapFromScene(mMenuButton->sceneBoundingRect()).boundingRect();
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mMenu->exec(cv->mapToGlobal(pinPos.bottomRight()));
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}
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