/*
* Copyright (C) 2015-2018 Département de l'Instruction Publique (DIP-SEM)
*
* Copyright (C) 2013 Open Education Foundation
*
* Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
* l'Education Numérique en Afrique (GIP ENA)
*
* This file is part of OpenBoard.
*
* OpenBoard is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3 of the License,
* with a specific linking exception for the OpenSSL project's
* "OpenSSL" library (or with modified versions of it that use the
* same license as the "OpenSSL" library).
*
* OpenBoard is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with OpenBoard. If not, see <http://www.gnu.org/licenses/>.
*/
#include "UBGraphicsScene.h"
#include <QtGui>
#include <QtWebKit>
#include <QtSvg>
#include <QGraphicsView>
#include <QGraphicsVideoItem>
#include "frameworks/UBGeometryUtils.h"
#include "frameworks/UBPlatformUtils.h"
#include "core/UBApplication.h"
#include "core/UBSettings.h"
#include "core/UBApplicationController.h"
#include "core/UBDisplayManager.h"
#include "core/UBPersistenceManager.h"
#include "core/UBTextTools.h"
#include "gui/UBMagnifer.h"
#include "gui/UBMainWindow.h"
#include "gui/UBToolWidget.h"
#include "gui/UBResources.h"
#include "tools/UBGraphicsRuler.h"
#include "tools/UBGraphicsProtractor.h"
#include "tools/UBGraphicsCompass.h"
#include "tools/UBGraphicsTriangle.h"
#include "tools/UBGraphicsCurtainItem.h"
#include "tools/UBGraphicsCache.h"
#include "document/UBDocumentProxy.h"
#include "board/UBBoardController.h"
#include "board/UBDrawingController.h"
#include "board/UBBoardView.h"
#include "UBGraphicsItemUndoCommand.h"
#include "UBGraphicsItemGroupUndoCommand.h"
#include "UBGraphicsTextItemUndoCommand.h"
#include "UBGraphicsProxyWidget.h"
#include "UBGraphicsPixmapItem.h"
#include "UBGraphicsSvgItem.h"
#include "UBGraphicsPolygonItem.h"
#include "UBGraphicsMediaItem.h"
#include "UBGraphicsWidgetItem.h"
#include "UBGraphicsPDFItem.h"
#include "UBGraphicsTextItem.h"
#include "UBGraphicsStrokesGroup.h"
#include "UBSelectionFrame.h"
#include "UBGraphicsItemZLevelUndoCommand.h"
#include "domain/UBGraphicsGroupContainerItem.h"
#include "UBGraphicsStroke.h"
#include "core/memcheck.h"
#define DEFAULT_Z_VALUE 0.0
qreal UBZLayerController::errorNumber = -20000001.0;
UBZLayerController::UBZLayerController(QGraphicsScene *scene) :
mScene(scene)
{
scopeMap.insert(itemLayerType::NoLayer, ItemLayerTypeData( errorNumber, errorNumber));
scopeMap.insert(itemLayerType::BackgroundItem, ItemLayerTypeData(-1000000.0, -1000000.0 ));
// DEFAULT_Z_VALUE isn't used because it allows to easily identify new objects
scopeMap.insert(itemLayerType::ObjectItem, ItemLayerTypeData(-1000000.0, DEFAULT_Z_VALUE - 1.0));
scopeMap.insert(itemLayerType::DrawingItem, ItemLayerTypeData( DEFAULT_Z_VALUE + 1.0, 1000000.0 ));
scopeMap.insert(itemLayerType::ToolItem, ItemLayerTypeData( 1000000.0, 1000100.0 ));
scopeMap.insert(itemLayerType::CppTool, ItemLayerTypeData( 1000100.0, 1000200.0 ));
scopeMap.insert(itemLayerType::Curtain, ItemLayerTypeData( 1000200.0, 1001000.0 ));
scopeMap.insert(itemLayerType::Eraiser, ItemLayerTypeData( 1001000.0, 1001100.0 ));
scopeMap.insert(itemLayerType::Pointer, ItemLayerTypeData( 1001100.0, 1001200.0 ));
scopeMap.insert(itemLayerType::Cache, ItemLayerTypeData( 1001300.0, 1001400.0 ));
scopeMap.insert(itemLayerType::SelectedItem, ItemLayerTypeData( 1001000.0, 1001000.0 ));
scopeMap.insert(itemLayerType::SelectionFrame, ItemLayerTypeData( 1010000.0, 1010000.0 ));
}
qreal UBZLayerController::generateZLevel(itemLayerType::Enum key)
{
if (!scopeMap.contains(key)) {
qDebug() << "Number is out of layer scope";
return errorNumber;
}
qreal result = scopeMap.value(key).curValue;
qreal top = scopeMap.value(key).topLimit;
qreal incrementalStep = scopeMap.value(key).incStep;
result += incrementalStep;
if (result >= top) {
// If not only one variable presents in the scope, notify that values for scope are over
if (scopeMap.value(key).topLimit != scopeMap.value(key).bottomLimit) {
qDebug() << "new values are over for the scope" << key;
}
result = top - incrementalStep;
}
scopeMap[key].curValue = result;
return result;
}
qreal UBZLayerController::generateZLevel(QGraphicsItem *item)
{
qreal result = errorNumber;
itemLayerType::Enum type = static_cast<itemLayerType::Enum>(item->data(UBGraphicsItemData::itemLayerType).toInt());
if (validLayerType(type)) {
result = generateZLevel(type);
}
return result;
}
qreal UBZLayerController::changeZLevelTo(QGraphicsItem *item, moveDestination dest)
{
itemLayerType::Enum curItemLayerType = typeForData(item);
if (curItemLayerType == itemLayerType::NoLayer) {
qDebug() << "item's layer is out of the scope. Can't implement z-layer changing operation";
return errorNum();
}
//select only items wiht the same z-level as item's one and push it to sortedItems QMultiMap
QMultiMap<qreal, QGraphicsItem*> sortedItems;
if (mScene->items().count()) {
foreach (QGraphicsItem *tmpItem, mScene->items()) {
if (typeForData(tmpItem) == curItemLayerType) {
sortedItems.insert(tmpItem->data(UBGraphicsItemData::ItemOwnZValue).toReal(), tmpItem);
}
}
}
//If only one item itself - do nothing, return it's z-value
if (sortedItems.count() == 1 && sortedItems.values().first() == item) {
qDebug() << "only one item exists in layer. Have nothing to change";
return item->data(UBGraphicsItemData::ItemOwnZValue).toReal();
}
QMapIterator<qreal, QGraphicsItem*>iCurElement(sortedItems);
if (dest == up) {
qDebug() << "item data zvalue= " << item->data(UBGraphicsItemData::ItemOwnZValue).toReal();
if (iCurElement.findNext(item)) {
if (iCurElement.hasNext()) {
qreal nextZ = iCurElement.peekNext().value()->data(UBGraphicsItemData::ItemOwnZValue).toReal();
UBGraphicsItem::assignZValue(iCurElement.peekNext().value(), item->data(UBGraphicsItemData::ItemOwnZValue).toReal());
UBGraphicsItem::assignZValue(item, nextZ);
iCurElement.next();
while (iCurElement.hasNext() && iCurElement.peekNext().value()->data(UBGraphicsItemData::ItemOwnZValue).toReal() == nextZ) {
UBGraphicsItem::assignZValue(iCurElement.next().value(), nextZ);
}
}
}
} else if (dest == top) {
if (iCurElement.findNext(item)) {
if (iCurElement.hasNext()) {
UBGraphicsItem::assignZValue(item, generateZLevel(item));
}
}
} else if (dest == down) {
iCurElement.toBack();
if (iCurElement.findPrevious(item)) {
if (iCurElement.hasPrevious()) {
qreal nextZ = iCurElement.peekPrevious().value()->data(UBGraphicsItemData::ItemOwnZValue).toReal();
UBGraphicsItem::assignZValue(iCurElement.peekPrevious().value(), item->data(UBGraphicsItemData::ItemOwnZValue).toReal());
UBGraphicsItem::assignZValue(item, nextZ);
while (iCurElement.hasNext() && iCurElement.peekNext().value()->data(UBGraphicsItemData::ItemOwnZValue).toReal() == nextZ) {
UBGraphicsItem::assignZValue(iCurElement.next().value(), nextZ);
}
}
}
} else if (dest == bottom) {
iCurElement.toBack();
if (iCurElement.findPrevious(item)) {
if (iCurElement.hasPrevious()) {
qreal oldz = item->data(UBGraphicsItemData::ItemOwnZValue).toReal();
iCurElement.toFront();
qreal nextZ = iCurElement.next().value()->data(UBGraphicsItemData::ItemOwnZValue).toReal();
ItemLayerTypeData curItemLayerTypeData = scopeMap.value(curItemLayerType);
//if we have some free space between lowest graphics item and layer's bottom bound,
//insert element close to first element in layer
if (nextZ > curItemLayerTypeData.bottomLimit + curItemLayerTypeData.incStep) {
qreal result = nextZ - curItemLayerTypeData.incStep;
UBGraphicsItem::assignZValue(item, result);
} else {
UBGraphicsItem::assignZValue(item, nextZ);
bool doubleGap = false; //to detect if we can finish rundown since we can insert item to the free space
while (iCurElement.peekNext().value() != item) {
qreal curZ = iCurElement.value()->data(UBGraphicsItemData::ItemOwnZValue).toReal();
qreal curNextZ = iCurElement.peekNext().value()->data(UBGraphicsItemData::ItemOwnZValue).toReal();
if (curNextZ - curZ >= 2 * curItemLayerTypeData.incStep) {
UBGraphicsItem::assignZValue(iCurElement.value(), curZ + curItemLayerTypeData.incStep);
doubleGap = true;
break;
} else {
UBGraphicsItem::assignZValue(iCurElement.value(), curNextZ);
iCurElement.next();
}
}
if (!doubleGap) {
UBGraphicsItem::assignZValue(iCurElement.value(), oldz);
while (iCurElement.hasNext() && (iCurElement.peekNext().value()->data(UBGraphicsItemData::ItemOwnZValue).toReal() == oldz)) {
UBGraphicsItem::assignZValue(iCurElement.next().value(), oldz);
}
}
}
}
}
}
//clear selection of the item and then select it again to activate selectionChangeProcessing()
item->scene()->clearSelection();
item->setSelected(true);
foreach (QGraphicsItem *iitem, sortedItems.values()) {
if (iitem)
iitem != item ? qDebug() << "current value" << iitem->zValue() : qDebug() << "marked value" << QString::number(iitem->zValue(), 'f');
}
//Return new z value assigned to item
// experimental
item->setZValue(item->data(UBGraphicsItemData::ItemOwnZValue).toReal());
return item->data(UBGraphicsItemData::ItemOwnZValue).toReal();
}
itemLayerType::Enum UBZLayerController::typeForData(QGraphicsItem *item) const
{
itemLayerType::Enum result = static_cast<itemLayerType::Enum>(item->data(UBGraphicsItemData::itemLayerType).toInt());
if (!scopeMap.contains(result)) {
result = itemLayerType::NoLayer;
}
return result;
}
void UBZLayerController::setLayerType(QGraphicsItem *pItem, itemLayerType::Enum pNewType)
{
pItem->setData(UBGraphicsItemData::itemLayerType, QVariant(pNewType));
}
void UBZLayerController::shiftStoredZValue(QGraphicsItem *item, qreal zValue)
{
itemLayerType::Enum type = typeForData(item);
if (validLayerType(type)) {
ItemLayerTypeData typeData = scopeMap.value(type);
if (typeData.curValue < zValue) {
scopeMap[type].curValue = zValue;
}
}
}
/**
* @brief Returns true if the zLevel is not used by any item on the scene, or false if so.
*/
bool UBZLayerController::zLevelAvailable(qreal z)
{
foreach(QGraphicsItem* it, dynamic_cast<UBGraphicsScene*>(mScene)->getFastAccessItems()) {
if (it->zValue() == z)
return false;
}
return true;
}
UBGraphicsScene::UBGraphicsScene(UBDocumentProxy* parent, bool enableUndoRedoStack)
: UBCoreGraphicsScene(parent)
, mEraser(0)
, mPointer(0)
, mMarkerCircle(0)
, mPenCircle(0)
, mDocument(parent)
, mDarkBackground(false)
, mPageBackground(UBPageBackground::plain)
, mIsDesktopMode(false)
, mZoomFactor(1)
, mBackgroundObject(0)
, mPreviousWidth(0)
, mDistanceFromLastStrokePoint(0)
, mInputDeviceIsPressed(false)
, mArcPolygonItem(0)
, mRenderingContext(Screen)
, mCurrentStroke(0)
, mItemCount(0)
, mUndoRedoStackEnabled(enableUndoRedoStack)
, magniferControlViewWidget(0)
, magniferDisplayViewWidget(0)
, mZLayerController(new UBZLayerController(this))
, mpLastPolygon(NULL)
, mCurrentPolygon(0)
, mTempPolygon(NULL)
, mSelectionFrame(0)
{
UBCoreGraphicsScene::setObjectName("BoardScene");
setItemIndexMethod(BspTreeIndex);
setUuid(QUuid::createUuid());
setDocument(parent);
createEraiser();
createPointer();
createMarkerCircle();
createPenCircle();
if (UBApplication::applicationController)
{
setViewState(SceneViewState(1,
UBApplication::applicationController->initialHScroll(),
UBApplication::applicationController->initialVScroll()));
}
mBackgroundGridSize = UBSettings::settings()->crossSize;
// Just for debug. Do not delete please
// connect(this, SIGNAL(selectionChanged()), this, SLOT(selectionChangedProcessing()));
connect(UBApplication::undoStack.data(), SIGNAL(indexChanged(int)), this, SLOT(updateSelectionFrameWrapper(int)));
}
UBGraphicsScene::~UBGraphicsScene()
{
if (mCurrentStroke && mCurrentStroke->polygons().empty()){
delete mCurrentStroke;
mCurrentStroke = NULL;
}
if (mZLayerController)
delete mZLayerController;
}
void UBGraphicsScene::selectionChangedProcessing()
{
if (selectedItems().count()){
UBApplication::showMessage("ZValue is " + QString::number(selectedItems().first()->zValue(), 'f') + "own z value is "
+ QString::number(selectedItems().first()->data(UBGraphicsItemData::ItemOwnZValue).toReal(), 'f'));
}
}
void UBGraphicsScene::setLastCenter(QPointF center)
{
mViewState.setLastSceneCenter(center);
}
QPointF UBGraphicsScene::lastCenter()
{
return mViewState.lastSceneCenter();
}
bool UBGraphicsScene::inputDevicePress(const QPointF& scenePos, const qreal& pressure)
{
bool accepted = false;
if (mInputDeviceIsPressed) {
qWarning() << "scene received input device pressed, without input device release, muting event as input device move";
accepted = inputDeviceMove(scenePos, pressure);
}
else {
mInputDeviceIsPressed = true;
UBStylusTool::Enum currentTool = (UBStylusTool::Enum)UBDrawingController::drawingController()->stylusTool();
if (UBDrawingController::drawingController()->isDrawingTool()) {
// -----------------------------------------------------------------
// We fall here if we are using the Pen, the Marker or the Line tool
// -----------------------------------------------------------------
qreal width = 0;
// delete current stroke, if not assigned to any polygon
if (mCurrentStroke && mCurrentStroke->polygons().empty()){
delete mCurrentStroke;
mCurrentStroke = NULL;
}
// hide the marker preview circle
if (currentTool == UBStylusTool::Marker)
hideMarkerCircle();
// hide the pen preview circle
if (currentTool == UBStylusTool::Pen)
hidePenCircle();
// ---------------------------------------------------------------
// Create a new Stroke. A Stroke is a collection of QGraphicsLines
// ---------------------------------------------------------------
mCurrentStroke = new UBGraphicsStroke(this);
if (currentTool != UBStylusTool::Line){
// Handle the pressure
width = UBDrawingController::drawingController()->currentToolWidth() * pressure;
}
else{
// Ignore pressure for the line tool
width = UBDrawingController::drawingController()->currentToolWidth();
}
width /= UBApplication::boardController->systemScaleFactor();
width /= UBApplication::boardController->currentZoom();
mAddedItems.clear();
mRemovedItems.clear();
if (UBDrawingController::drawingController()->mActiveRuler)
UBDrawingController::drawingController()->mActiveRuler->StartLine(scenePos, width);
else {
moveTo(scenePos);
drawLineTo(scenePos, width, UBDrawingController::drawingController()->stylusTool() == UBStylusTool::Line);
mCurrentStroke->addPoint(scenePos, width);
}
accepted = true;
}
else if (currentTool == UBStylusTool::Eraser) {
mAddedItems.clear();
mRemovedItems.clear();
moveTo(scenePos);
qreal eraserWidth = UBSettings::settings()->currentEraserWidth();
eraserWidth /= UBApplication::boardController->systemScaleFactor();
eraserWidth /= UBApplication::boardController->currentZoom();
eraseLineTo(scenePos, eraserWidth);
drawEraser(scenePos, mInputDeviceIsPressed);
accepted = true;
}
else if (currentTool == UBStylusTool::Pointer) {
drawPointer(scenePos, true);
accepted = true;
}
}
if (mCurrentStroke && mCurrentStroke->polygons().empty()){
delete mCurrentStroke;
mCurrentStroke = NULL;
}
return accepted;
}
bool UBGraphicsScene::inputDeviceMove(const QPointF& scenePos, const qreal& pressure)
{
bool accepted = false;
UBDrawingController *dc = UBDrawingController::drawingController();
UBStylusTool::Enum currentTool = (UBStylusTool::Enum)dc->stylusTool();
QPointF position = QPointF(scenePos);
if (currentTool == UBStylusTool::Eraser)
{
drawEraser(position, mInputDeviceIsPressed);
accepted = true;
}
else if (currentTool == UBStylusTool::Marker) {
if (mInputDeviceIsPressed)
hideMarkerCircle();
else {
drawMarkerCircle(position);
accepted = true;
}
}
else if (currentTool == UBStylusTool::Pen) {
if (mInputDeviceIsPressed)
hidePenCircle();
else {
drawPenCircle(position);
accepted = true;
}
}
if (mInputDeviceIsPressed)
{
if (dc->isDrawingTool())
{
qreal width = 0;
if (currentTool != UBStylusTool::Line){
// Handle the pressure
width = dc->currentToolWidth() * qMax(pressure, 0.2);
}else{
// Ignore pressure for line tool
width = dc->currentToolWidth();
}
width /= UBApplication::boardController->systemScaleFactor();
width /= UBApplication::boardController->currentZoom();
if (currentTool == UBStylusTool::Line || dc->mActiveRuler)
{
if (UBDrawingController::drawingController()->stylusTool() != UBStylusTool::Marker)
if(NULL != mpLastPolygon && NULL != mCurrentStroke && mAddedItems.size() > 0){
UBCoreGraphicsScene::removeItemFromDeletion(mpLastPolygon);
mAddedItems.remove(mpLastPolygon);
mCurrentStroke->remove(mpLastPolygon);
if (mCurrentStroke->polygons().empty()){
delete mCurrentStroke;
mCurrentStroke = NULL;
}
removeItem(mpLastPolygon);
mPreviousPolygonItems.removeAll(mpLastPolygon);
}
// ------------------------------------------------------------------------
// Here we wanna make sure that the Line will 'grip' at i*45, i*90 degrees
// ------------------------------------------------------------------------
QLineF radius(mPreviousPoint, position);
qreal angle = radius.angle();
angle = qRound(angle / 45) * 45;
qreal radiusLength = radius.length();
QPointF newPosition(
mPreviousPoint.x() + radiusLength * cos((angle * PI) / 180),
mPreviousPoint.y() - radiusLength * sin((angle * PI) / 180));
QLineF chord(position, newPosition);
if (chord.length() < qMin((int)16, (int)(radiusLength / 20)))
position = newPosition;
}
if (!mCurrentStroke)
mCurrentStroke = new UBGraphicsStroke(this);
if(dc->mActiveRuler){
dc->mActiveRuler->DrawLine(position, width);
}
else if (currentTool == UBStylusTool::Line) {
drawLineTo(position, width, true);
}
else {
bool interpolate = false;
if ((currentTool == UBStylusTool::Pen && UBSettings::settings()->boardInterpolatePenStrokes->get().toBool())
|| (currentTool == UBStylusTool::Marker && UBSettings::settings()->boardInterpolateMarkerStrokes->get().toBool()))
{
interpolate = true;
}
// Don't draw segments smaller than a certain length. This can help with performance
// (less polygons to draw) but mostly with making the curve look smooth.
qreal antiScaleRatio = 1./(UBApplication::boardController->systemScaleFactor() * UBApplication::boardController->currentZoom());
qreal MIN_DISTANCE = 10*antiScaleRatio; // arbitrary. Move to settings if relevant.
qreal distance = QLineF(mPreviousPoint, scenePos).length();
mDistanceFromLastStrokePoint += distance;
if (mDistanceFromLastStrokePoint > MIN_DISTANCE) {
QList<QPair<QPointF, qreal> > newPoints = mCurrentStroke->addPoint(scenePos, width, interpolate);
if (newPoints.length() > 1)
drawCurve(newPoints);
mDistanceFromLastStrokePoint = 0;
}
if (interpolate) {
// Bezier curves aren't drawn all the way to the scenePos (they stop halfway between the previous and
// current scenePos), so we add a line from the last drawn position in the stroke and the
// scenePos, to make the drawing feel more responsive. This line is then deleted if a new segment is
// added to the stroke. (Or it is added to the stroke when we stop drawing)
if (mTempPolygon) {
removeItem(mTempPolygon);
mTempPolygon = NULL;
}
QPointF lastDrawnPoint = mCurrentStroke->points().last().first;
mTempPolygon = lineToPolygonItem(QLineF(lastDrawnPoint, scenePos), mPreviousWidth, width);
addItem(mTempPolygon);
}
}
}
else if (currentTool == UBStylusTool::Eraser)
{
qreal eraserWidth = UBSettings::settings()->currentEraserWidth();
eraserWidth /= UBApplication::boardController->systemScaleFactor();
eraserWidth /= UBApplication::boardController->currentZoom();
eraseLineTo(position, eraserWidth);
}
else if (currentTool == UBStylusTool::Pointer)
{
drawPointer(position);
}
accepted = true;
}
return accepted;
}
bool UBGraphicsScene::inputDeviceRelease()
{
bool accepted = false;
if (mPointer)
{
mPointer->hide();
accepted = true;
}
UBStylusTool::Enum currentTool = (UBStylusTool::Enum)UBDrawingController::drawingController()->stylusTool();
if (currentTool == UBStylusTool::Eraser)
redrawEraser(false);
UBDrawingController *dc = UBDrawingController::drawingController();
if (dc->isDrawingTool() || mDrawWithCompass)
{
if(mArcPolygonItem){
UBGraphicsStrokesGroup* pStrokes = new UBGraphicsStrokesGroup();
// Add the arc
mAddedItems.remove(mArcPolygonItem);
removeItem(mArcPolygonItem);
UBCoreGraphicsScene::removeItemFromDeletion(mArcPolygonItem);
mArcPolygonItem->setStrokesGroup(pStrokes);
pStrokes->addToGroup(mArcPolygonItem);
// Add the center cross
foreach(QGraphicsItem* item, mAddedItems){
mAddedItems.remove(item);
removeItem(item);
UBCoreGraphicsScene::removeItemFromDeletion(item);
UBGraphicsPolygonItem* pi = qgraphicsitem_cast<UBGraphicsPolygonItem*>(item);
if (pi)
pi->setStrokesGroup(pStrokes);
pStrokes->addToGroup(item);
}
mAddedItems.clear();
mAddedItems << pStrokes;
addItem(pStrokes);
mDrawWithCompass = false;
}
else if (mCurrentStroke){
if (mTempPolygon) {
UBGraphicsPolygonItem * poly = dynamic_cast<UBGraphicsPolygonItem*>(mTempPolygon->deepCopy());
removeItem(mTempPolygon);
mTempPolygon = NULL;
addPolygonItemToCurrentStroke(poly);
}
// replace the stroke by a simplified version of it
if ((currentTool == UBStylusTool::Pen && UBSettings::settings()->boardSimplifyPenStrokes->get().toBool())
|| (currentTool == UBStylusTool::Marker && UBSettings::settings()->boardSimplifyMarkerStrokes->get().toBool()))
{
simplifyCurrentStroke();
}
UBGraphicsStrokesGroup* pStrokes = new UBGraphicsStrokesGroup();
// Remove the strokes that were just drawn here and replace them by a stroke item
foreach(UBGraphicsPolygonItem* poly, mCurrentStroke->polygons()){
mPreviousPolygonItems.removeAll(poly);
removeItem(poly);
UBCoreGraphicsScene::removeItemFromDeletion(poly);
poly->setStrokesGroup(pStrokes);
pStrokes->addToGroup(poly);
}
// TODO LATER : Generate well pressure-interpolated polygons and create the line group with them
mAddedItems.clear();
mAddedItems << pStrokes;
addItem(pStrokes);
if (mCurrentStroke->polygons().empty()){
delete mCurrentStroke;
mCurrentStroke = 0;
}
mCurrentPolygon = 0;
}
}
if (mRemovedItems.size() > 0 || mAddedItems.size() > 0)
{
if (mUndoRedoStackEnabled) { //should be deleted after scene own undo stack implemented
UBGraphicsItemUndoCommand* udcmd = new UBGraphicsItemUndoCommand(this, mRemovedItems, mAddedItems); //deleted by the undoStack
if(UBApplication::undoStack)
UBApplication::undoStack->push(udcmd);
}
mRemovedItems.clear();
mAddedItems.clear();
accepted = true;
}
mInputDeviceIsPressed = false;
setDocumentUpdated();
if (mCurrentStroke && mCurrentStroke->polygons().empty()){
delete mCurrentStroke;
}
mCurrentStroke = NULL;
return accepted;
}
void UBGraphicsScene::drawEraser(const QPointF &pPoint, bool pressed)
{
if (mEraser) {
qreal eraserWidth = UBSettings::settings()->currentEraserWidth();
eraserWidth /= UBApplication::boardController->systemScaleFactor();
eraserWidth /= UBApplication::boardController->currentZoom();
qreal eraserRadius = eraserWidth / 2;
// TODO UB 4.x optimize - no need to do that every time we move it
mEraser->setRect(QRectF(pPoint.x() - eraserRadius, pPoint.y() - eraserRadius, eraserWidth, eraserWidth));
redrawEraser(pressed);
}
}
void UBGraphicsScene::redrawEraser(bool pressed)
{
if (mEraser) {
QPen pen = mEraser->pen();
if(pressed)
pen.setStyle(Qt::SolidLine);
else
pen.setStyle(Qt::DotLine);
mEraser->setPen(pen);
mEraser->show();
}
}
void UBGraphicsScene::hideEraser()
{
if (mEraser)
mEraser->hide();
}
void UBGraphicsScene::drawPointer(const QPointF &pPoint, bool isFirstDraw)
{
qreal pointerDiameter = UBSettings::pointerDiameter / UBApplication::boardController->currentZoom();
qreal pointerRadius = pointerDiameter / 2;
// TODO UB 4.x optimize - no need to do that every time we move it
if (mPointer) {
mPointer->setRect(QRectF(pPoint.x() - pointerRadius,
pPoint.y() - pointerRadius,
pointerDiameter,
pointerDiameter));
if(isFirstDraw) {
mPointer->show();
}
}
}
void UBGraphicsScene::drawMarkerCircle(const QPointF &pPoint)
{
if (mMarkerCircle) {
qreal markerDiameter = UBSettings::settings()->currentMarkerWidth();
markerDiameter /= UBApplication::boardController->systemScaleFactor();
markerDiameter /= UBApplication::boardController->currentZoom();
qreal markerRadius = markerDiameter/2;
mMarkerCircle->setRect(QRectF(pPoint.x() - markerRadius, pPoint.y() - markerRadius,
markerDiameter, markerDiameter));
mMarkerCircle->show();
}
}
void UBGraphicsScene::drawPenCircle(const QPointF &pPoint)
{
if (mPenCircle && UBSettings::settings()->showPenPreviewCircle->get().toBool() &&
UBSettings::settings()->currentPenWidth() >= UBSettings::settings()->penPreviewFromSize->get().toInt()) {
qreal penDiameter = UBSettings::settings()->currentPenWidth();
penDiameter /= UBApplication::boardController->systemScaleFactor();
penDiameter /= UBApplication::boardController->currentZoom();
qreal penRadius = penDiameter/2;
mPenCircle->setRect(QRectF(pPoint.x() - penRadius, pPoint.y() - penRadius,
penDiameter, penDiameter));
if (controlView())
if (controlView()->viewport())
controlView()->viewport()->setCursor(QCursor (Qt::BlankCursor));
mPenCircle->show();
}
else
{
if (controlView())
if (controlView()->viewport())
controlView()->viewport()->setCursor(UBResources::resources()->penCursor);
}
}
void UBGraphicsScene::hideMarkerCircle()
{
if (mMarkerCircle) {
mMarkerCircle->hide();
}
}
void UBGraphicsScene::hidePenCircle()
{
if (mPenCircle)
mPenCircle->hide();
}
// call this function when user release mouse button in Magnifier mode
void UBGraphicsScene::DisposeMagnifierQWidgets()
{
if(magniferControlViewWidget)
{
magniferControlViewWidget->hide();
magniferControlViewWidget->setParent(0);
delete magniferControlViewWidget;
magniferControlViewWidget = NULL;
}
if(magniferDisplayViewWidget)
{
magniferDisplayViewWidget->hide();
magniferDisplayViewWidget->setParent(0);
delete magniferDisplayViewWidget;
magniferDisplayViewWidget = NULL;
}
// some time have crash here on access to app (when call from destructor when close OpenBoard app)
// so i just add try/catch section here
try
{
UBApplication::app()->restoreOverrideCursor();
}
catch (...)
{
}
}
void UBGraphicsScene::moveTo(const QPointF &pPoint)
{
mPreviousPoint = pPoint;
mPreviousWidth = -1.0;
mPreviousPolygonItems.clear();
mArcPolygonItem = 0;
mDrawWithCompass = false;
}
void UBGraphicsScene::drawLineTo(const QPointF &pEndPoint, const qreal &pWidth, bool bLineStyle)
{
drawLineTo(pEndPoint, pWidth, pWidth, bLineStyle);
}
void UBGraphicsScene::drawLineTo(const QPointF &pEndPoint, const qreal &startWidth, const qreal &endWidth, bool bLineStyle)
{
if (mPreviousWidth == -1.0)
mPreviousWidth = startWidth;
qreal initialWidth = startWidth;
if (initialWidth == endWidth)
initialWidth = mPreviousWidth;
if (bLineStyle) {
QSetIterator<QGraphicsItem*> itItems(mAddedItems);
while (itItems.hasNext()) {
QGraphicsItem* item = itItems.next();
removeItem(item);
}
mAddedItems.clear();
}
UBGraphicsPolygonItem *polygonItem = lineToPolygonItem(QLineF(mPreviousPoint, pEndPoint), initialWidth, endWidth);
addPolygonItemToCurrentStroke(polygonItem);
if (!bLineStyle) {
mPreviousPoint = pEndPoint;
mPreviousWidth = endWidth;
}
}
void UBGraphicsScene::drawCurve(const QList<QPair<QPointF, qreal> >& points)
{
UBGraphicsPolygonItem* polygonItem = curveToPolygonItem(points);
addPolygonItemToCurrentStroke(polygonItem);
mPreviousPoint = points.last().first;
mPreviousWidth = points.last().second;
}
void UBGraphicsScene::drawCurve(const QList<QPointF>& points, qreal startWidth, qreal endWidth)
{
UBGraphicsPolygonItem* polygonItem = curveToPolygonItem(points, startWidth, endWidth);
addPolygonItemToCurrentStroke(polygonItem);
mPreviousWidth = endWidth;
mPreviousPoint = points.last();
}
void UBGraphicsScene::addPolygonItemToCurrentStroke(UBGraphicsPolygonItem* polygonItem)
{
if (!polygonItem->brush().isOpaque())
{
// -------------------------------------------------------------------------------------
// Here we substract the polygons that are overlapping in order to keep the transparency
// -------------------------------------------------------------------------------------
for (int i = 0; i < mPreviousPolygonItems.size(); i++)
{
UBGraphicsPolygonItem* previous = mPreviousPolygonItems.value(i);
polygonItem->subtract(previous);
}
}
mpLastPolygon = polygonItem;
mAddedItems.insert(polygonItem);
// Here we add the item to the scene
addItem(polygonItem);
if (!mCurrentStroke)
mCurrentStroke = new UBGraphicsStroke(this);
polygonItem->setStroke(mCurrentStroke);
mPreviousPolygonItems.append(polygonItem);
}
void UBGraphicsScene::eraseLineTo(const QPointF &pEndPoint, const qreal &pWidth)
{
const QLineF line(mPreviousPoint, pEndPoint);
mPreviousPoint = pEndPoint;
const QPolygonF eraserPolygon = UBGeometryUtils::lineToPolygon(line, pWidth);
const QRectF eraserBoundingRect = eraserPolygon.boundingRect();
QPainterPath eraserPath;
eraserPath.addPolygon(eraserPolygon);
// Get all the items that are intersecting with the eraser path
QList<QGraphicsItem*> collidItems = items(eraserBoundingRect, Qt::IntersectsItemBoundingRect);
QList<UBGraphicsPolygonItem*> intersectedItems;
typedef QList<QPolygonF> POLYGONSLIST;
QList<POLYGONSLIST> intersectedPolygons;
#pragma omp parallel for
for(int i=0; i<collidItems.size(); i++)
{
UBGraphicsPolygonItem *pi = qgraphicsitem_cast<UBGraphicsPolygonItem*>(collidItems[i]);
if(pi == NULL)
continue;
QPainterPath itemPainterPath;
itemPainterPath.addPolygon(pi->sceneTransform().map(pi->polygon()));
if (eraserPath.contains(itemPainterPath))
{
#pragma omp critical
{
// Compete remove item
intersectedItems << pi;
intersectedPolygons << QList<QPolygonF>();
}
}
else if (eraserPath.intersects(itemPainterPath))
{
itemPainterPath.setFillRule(Qt::WindingFill);
QPainterPath newPath = itemPainterPath.subtracted(eraserPath);
#pragma omp critical
{
intersectedItems << pi;
intersectedPolygons << newPath.simplified().toFillPolygons(pi->sceneTransform().inverted());
}
}
}
for(int i=0; i<intersectedItems.size(); i++)
{
// item who intersects with eraser
UBGraphicsPolygonItem *intersectedPolygonItem = intersectedItems[i];
if (!intersectedPolygons[i].empty())
{
// intersected polygons generated as QList<QPolygon> QPainterPath::toFillPolygons(),
// so each intersectedPolygonItem has one or couple of QPolygons who should be removed from it.
for(int j = 0; j < intersectedPolygons[i].size(); j++)
{
// create small polygon from couple of polygons to replace particular erased polygon
UBGraphicsPolygonItem* polygonItem = new UBGraphicsPolygonItem(intersectedPolygons[i][j], intersectedPolygonItem->parentItem());
intersectedPolygonItem->copyItemParameters(polygonItem);
polygonItem->setNominalLine(false);
polygonItem->setStroke(intersectedPolygonItem->stroke());
polygonItem->setStrokesGroup(intersectedPolygonItem->strokesGroup());
intersectedPolygonItem->strokesGroup()->addToGroup(polygonItem);
mAddedItems << polygonItem;
}
}
//remove full polygon item for replace it by couple of polygons which creates the same stroke without a part intersects with eraser
mRemovedItems << intersectedPolygonItem;
QTransform t;
bool bApplyTransform = false;
if (intersectedPolygonItem->strokesGroup())
{
if (intersectedPolygonItem->strokesGroup()->parentItem())
{
bApplyTransform = true;
t = intersectedPolygonItem->sceneTransform();
}
intersectedPolygonItem->strokesGroup()->removeFromGroup(intersectedPolygonItem);
}
removeItem(intersectedPolygonItem);
if (bApplyTransform)
intersectedPolygonItem->setTransform(t);
}
if (!intersectedItems.empty())
setModified(true);
}
void UBGraphicsScene::drawArcTo(const QPointF& pCenterPoint, qreal pSpanAngle)
{
mDrawWithCompass = true;
if (mArcPolygonItem)
{
mAddedItems.remove(mArcPolygonItem);
removeItem(mArcPolygonItem);
mArcPolygonItem = 0;
}
qreal penWidth = UBSettings::settings()->currentPenWidth();
penWidth /= UBApplication::boardController->systemScaleFactor();
penWidth /= UBApplication::boardController->currentZoom();
mArcPolygonItem = arcToPolygonItem(QLineF(pCenterPoint, mPreviousPoint), pSpanAngle, penWidth);
mArcPolygonItem->setFillRule(Qt::WindingFill);
mArcPolygonItem->setStroke(mCurrentStroke);
mAddedItems.insert(mArcPolygonItem);
addItem(mArcPolygonItem);
setDocumentUpdated();
}
void UBGraphicsScene::setBackground(bool pIsDark, UBPageBackground pBackground)
{
bool needRepaint = false;
if (mDarkBackground != pIsDark)
{
mDarkBackground = pIsDark;
updateEraserColor();
updateMarkerCircleColor();
updatePenCircleColor();
recolorAllItems();
needRepaint = true;
setModified(true);
}
if (mPageBackground != pBackground)
{
mPageBackground = pBackground;
needRepaint = true;
setModified(true);
}
if (needRepaint)
{
foreach(QGraphicsView* view, views())
{
view->resetCachedContent();
}
}
}
void UBGraphicsScene::setBackgroundZoomFactor(qreal zoom)
{
mZoomFactor = zoom;
}
void UBGraphicsScene::setBackgroundGridSize(int pSize)
{
if (pSize > 0) {
mBackgroundGridSize = pSize;
setModified(true);
foreach(QGraphicsView* view, views())
view->resetCachedContent();
}
}
void UBGraphicsScene::setDrawingMode(bool bModeDesktop)
{
mIsDesktopMode = bModeDesktop;
}
void UBGraphicsScene::recolorAllItems()
{
QMap<QGraphicsView*, QGraphicsView::ViewportUpdateMode> previousUpdateModes;
foreach(QGraphicsView* view, views())
{
previousUpdateModes.insert(view, view->viewportUpdateMode());
view->setViewportUpdateMode(QGraphicsView::NoViewportUpdate);
}
bool currentIslight = isLightBackground();
foreach (QGraphicsItem *item, items()) {
if (item->type() == UBGraphicsStrokesGroup::Type) {
UBGraphicsStrokesGroup *curGroup = static_cast<UBGraphicsStrokesGroup*>(item);
QColor compareColor = curGroup->color(currentIslight ? UBGraphicsStrokesGroup::colorOnDarkBackground
: UBGraphicsStrokesGroup::colorOnLightBackground);
if (curGroup->color() == compareColor) {
QColor newColor = curGroup->color(!currentIslight ? UBGraphicsStrokesGroup::colorOnDarkBackground
: UBGraphicsStrokesGroup::colorOnLightBackground);
curGroup->setColor(newColor);
}
}
}
foreach(QGraphicsView* view, views())
{
view->setViewportUpdateMode(previousUpdateModes.value(view));
}
}
UBGraphicsPolygonItem* UBGraphicsScene::lineToPolygonItem(const QLineF &pLine, const qreal &pWidth)
{
UBGraphicsPolygonItem *polygonItem = new UBGraphicsPolygonItem(pLine, pWidth);
initPolygonItem(polygonItem);
return polygonItem;
}
UBGraphicsPolygonItem* UBGraphicsScene::lineToPolygonItem(const QLineF &pLine, const qreal &pStartWidth, const qreal &pEndWidth)
{
UBGraphicsPolygonItem *polygonItem = new UBGraphicsPolygonItem(pLine, pStartWidth, pEndWidth);
initPolygonItem(polygonItem);
return polygonItem;
}
void UBGraphicsScene::initPolygonItem(UBGraphicsPolygonItem* polygonItem)
{
QColor colorOnDarkBG;
QColor colorOnLightBG;
if (UBDrawingController::drawingController()->stylusTool() == UBStylusTool::Marker)
{
colorOnDarkBG = UBApplication::boardController->markerColorOnDarkBackground();
colorOnLightBG = UBApplication::boardController->markerColorOnLightBackground();
}
else // settings->stylusTool() == UBStylusTool::Pen + failsafe
{
colorOnDarkBG = UBApplication::boardController->penColorOnDarkBackground();
colorOnLightBG = UBApplication::boardController->penColorOnLightBackground();
}
if (mDarkBackground)
{
polygonItem->setColor(colorOnDarkBG);
}
else
{
polygonItem->setColor(colorOnLightBG);
}
//polygonItem->setColor(QColor(rand()%256, rand()%256, rand()%256, polygonItem->brush().color().alpha()));
polygonItem->setColorOnDarkBackground(colorOnDarkBG);
polygonItem->setColorOnLightBackground(colorOnLightBG);
polygonItem->setData(UBGraphicsItemData::ItemLayerType, QVariant(UBItemLayerType::Graphic));
}
UBGraphicsPolygonItem* UBGraphicsScene::arcToPolygonItem(const QLineF& pStartRadius, qreal pSpanAngle, qreal pWidth)
{
QPolygonF polygon = UBGeometryUtils::arcToPolygon(pStartRadius, pSpanAngle, pWidth);
return polygonToPolygonItem(polygon);
}
UBGraphicsPolygonItem* UBGraphicsScene::curveToPolygonItem(const QList<QPair<QPointF, qreal> >& points)
{
QPolygonF polygon = UBGeometryUtils::curveToPolygon(points, false, true);
return polygonToPolygonItem(polygon);
}
UBGraphicsPolygonItem* UBGraphicsScene::curveToPolygonItem(const QList<QPointF>& points, qreal startWidth, qreal endWidth)
{
QPolygonF polygon = UBGeometryUtils::curveToPolygon(points, startWidth, endWidth);
return polygonToPolygonItem(polygon);
}
void UBGraphicsScene::clearSelectionFrame()
{
if (mSelectionFrame) {
mSelectionFrame->setEnclosedItems(QList<QGraphicsItem*>());
}
}
UBBoardView *UBGraphicsScene::controlView()
{
UBBoardView *result = 0;
foreach (QGraphicsView *view, views()) {
if (view->objectName() == CONTROLVIEW_OBJ_NAME) {
result = static_cast<UBBoardView*>(view);
}
}
return result;
}
void UBGraphicsScene::notifyZChanged(QGraphicsItem *item, qreal zValue)
{
mZLayerController->shiftStoredZValue(item, zValue);
}
void UBGraphicsScene::updateSelectionFrame()
{
if (!mSelectionFrame) {
mSelectionFrame = new UBSelectionFrame();
addItem(mSelectionFrame);
}
QList<QGraphicsItem*> selItems = selectedItems();
switch (selItems.count()) {
case 0 : {
mSelectionFrame->setVisible(false);
mSelectionFrame->setEnclosedItems(selItems);
} break;
case 1: {
mSelectionFrame->setVisible(false);
mSelectionFrame->setEnclosedItems(QList<QGraphicsItem*>());
UBGraphicsItemDelegate *itemDelegate = UBGraphicsItem::Delegate(selItems.first());
itemDelegate->createControls();
selItems.first()->setVisible(true);
itemDelegate->showControls();
} break;
default: {
mSelectionFrame->setVisible(true);
mSelectionFrame->setEnclosedItems(selItems);
} break;
}
}
void UBGraphicsScene::updateSelectionFrameWrapper(int)
{
updateSelectionFrame();
}
UBGraphicsPolygonItem* UBGraphicsScene::polygonToPolygonItem(const QPolygonF pPolygon)
{
UBGraphicsPolygonItem *polygonItem = new UBGraphicsPolygonItem(pPolygon);
initPolygonItem(polygonItem);
return polygonItem;
}
void UBGraphicsScene::hideTool()
{
hideEraser();
hideMarkerCircle();
hidePenCircle();
}
void UBGraphicsScene::leaveEvent(QEvent * event)
{
Q_UNUSED(event);
hideTool();
}
UBGraphicsScene* UBGraphicsScene::sceneDeepCopy() const
{
UBGraphicsScene* copy = new UBGraphicsScene(this->document(), this->mUndoRedoStackEnabled);
copy->setBackground(this->isDarkBackground(), mPageBackground);
copy->setBackgroundGridSize(mBackgroundGridSize);
copy->setSceneRect(this->sceneRect());
if (this->mNominalSize.isValid())
copy->setNominalSize(this->mNominalSize);
QListIterator<QGraphicsItem*> itItems(this->mFastAccessItems);
QMap<UBGraphicsStroke*, UBGraphicsStroke*> groupClone;
while (itItems.hasNext())
{
QGraphicsItem* item = itItems.next();
QGraphicsItem* cloneItem = 0;
UBItem* ubItem = dynamic_cast<UBItem*>(item);
UBGraphicsStroke* stroke = dynamic_cast<UBGraphicsStroke*>(item);
UBGraphicsGroupContainerItem* group = dynamic_cast<UBGraphicsGroupContainerItem*>(item);
if(group){
UBGraphicsGroupContainerItem* groupCloned = group->deepCopyNoChildDuplication();
groupCloned->resetMatrix();
groupCloned->resetTransform();
groupCloned->setPos(0, 0);
bool locked = groupCloned->Delegate()->isLocked();
foreach(QGraphicsItem* eachItem ,group->childItems()){
QGraphicsItem* copiedChild = dynamic_cast<QGraphicsItem*>(dynamic_cast<UBItem*>(eachItem)->deepCopy());
copy->addItem(copiedChild);
groupCloned->addToGroup(copiedChild);
}
if (locked)
groupCloned->setData(UBGraphicsItemData::ItemLocked, QVariant(true));
copy->addItem(groupCloned);
groupCloned->setMatrix(group->matrix());
groupCloned->setTransform(QTransform::fromTranslate(group->pos().x(), group->pos().y()));
groupCloned->setTransform(group->transform(), true);
}
if (ubItem && !stroke && !group && item->isVisible())
cloneItem = dynamic_cast<QGraphicsItem*>(ubItem->deepCopy());
if (cloneItem)
{
copy->addItem(cloneItem);
if (isBackgroundObject(item))
copy->setAsBackgroundObject(cloneItem);
if (this->mTools.contains(item))
copy->mTools << cloneItem;
UBGraphicsPolygonItem* polygon = dynamic_cast<UBGraphicsPolygonItem*>(item);
if(polygon)
{
UBGraphicsStroke* stroke = dynamic_cast<UBGraphicsStroke*>(item->parentItem());
if (stroke)
{
UBGraphicsStroke* cloneStroke = groupClone.value(stroke);
if (!cloneStroke)
{
cloneStroke = stroke->deepCopy();
groupClone.insert(stroke, cloneStroke);
}
polygon->setStroke(cloneStroke);
}
}
}
}
// TODO UB 4.7 ... complete all members ?
return copy;
}
UBItem* UBGraphicsScene::deepCopy() const
{
return sceneDeepCopy();
}
void UBGraphicsScene::clearContent(clearCase pCase)
{
QSet<QGraphicsItem*> removedItems;
UBGraphicsItemUndoCommand::GroupDataTable groupsMap;
switch (pCase) {
case clearBackground :
if(mBackgroundObject){
removeItem(mBackgroundObject);
removedItems << mBackgroundObject;
}
break;
case clearItemsAndAnnotations :
case clearItems :
case clearAnnotations :
foreach(QGraphicsItem* item, items()) {
UBGraphicsGroupContainerItem *itemGroup = item->parentItem()
? qgraphicsitem_cast<UBGraphicsGroupContainerItem*>(item->parentItem())
: 0;
UBGraphicsItemDelegate *curDelegate = UBGraphicsItem::Delegate(item);
if (!curDelegate) {
continue;
}
bool isGroup = item->type() == UBGraphicsGroupContainerItem::Type;
bool isStrokesGroup = item->type() == UBGraphicsStrokesGroup::Type;
bool shouldDelete = false;
switch (static_cast<int>(pCase)) {
case clearAnnotations :
shouldDelete = isStrokesGroup;
break;
case clearItems :
shouldDelete = !isGroup && !isBackgroundObject(item) && !isStrokesGroup;
break;
case clearItemsAndAnnotations:
shouldDelete = !isGroup && !isBackgroundObject(item);
break;
}
if(shouldDelete) {
if (itemGroup) {
itemGroup->removeFromGroup(item);
groupsMap.insert(itemGroup, UBGraphicsItem::getOwnUuid(item));
if (itemGroup->childItems().count() == 1) {
groupsMap.insert(itemGroup, UBGraphicsItem::getOwnUuid(itemGroup->childItems().first()));
QGraphicsItem *lastItem = itemGroup->childItems().first();
bool isSelected = itemGroup->isSelected();
itemGroup->destroy(false);
lastItem->setSelected(isSelected);
}
itemGroup->Delegate()->update();
}
curDelegate->remove(false);
removedItems << item;
}
}
break;
}
// force refresh, QT is a bit lazy and take a lot of time (nb item ^2 ?) to trigger repaint
update(sceneRect());
if (mUndoRedoStackEnabled) { //should be deleted after scene own undo stack implemented
UBGraphicsItemUndoCommand* uc = new UBGraphicsItemUndoCommand(this, removedItems, QSet<QGraphicsItem*>(), groupsMap);
UBApplication::undoStack->push(uc);
}
if (pCase == clearBackground) {
mBackgroundObject = 0;
}
setDocumentUpdated();
}
UBGraphicsPixmapItem* UBGraphicsScene::addPixmap(const QPixmap& pPixmap, QGraphicsItem* replaceFor, const QPointF& pPos, qreal pScaleFactor, bool pUseAnimation, bool useProxyForDocumentPath)
{
UBGraphicsPixmapItem* pixmapItem = new UBGraphicsPixmapItem();
pixmapItem->setFlag(QGraphicsItem::ItemIsMovable, true);
pixmapItem->setFlag(QGraphicsItem::ItemIsSelectable, true);
pixmapItem->setPixmap(pPixmap);
QPointF half(pPixmap.width() * pScaleFactor / 2, pPixmap.height() * pScaleFactor / 2);
pixmapItem->setPos(pPos - half);
addItem(pixmapItem);
if (mUndoRedoStackEnabled) { //should be deleted after scene own undo stack implemented
UBGraphicsItemUndoCommand* uc = new UBGraphicsItemUndoCommand(this, replaceFor, pixmapItem);
UBApplication::undoStack->push(uc);
}
pixmapItem->setTransform(QTransform::fromScale(pScaleFactor, pScaleFactor), true);
if (pUseAnimation)
{
pixmapItem->setOpacity(0);
QPropertyAnimation *animation = new QPropertyAnimation(pixmapItem, "opacity");
animation->setDuration(1000);
animation->setStartValue(0.0);
animation->setEndValue(1.0);
animation->start();
}
pixmapItem->show();
setDocumentUpdated();
QString documentPath;
if(useProxyForDocumentPath)
documentPath = this->document()->persistencePath();
else
documentPath = UBApplication::boardController->selectedDocument()->persistencePath();
QString fileName = UBPersistenceManager::imageDirectory + "/" + pixmapItem->uuid().toString() + ".png";
QString path = documentPath + "/" + fileName;
if (!QFile::exists(path))
{
QDir dir;
dir.mkdir(documentPath + "/" + UBPersistenceManager::imageDirectory);
pixmapItem->pixmap().toImage().save(path, "PNG");
}
return pixmapItem;
}
void UBGraphicsScene::textUndoCommandAdded(UBGraphicsTextItem *textItem)
{
if (mUndoRedoStackEnabled) { //should be deleted after scene own undo stack implemented
UBGraphicsTextItemUndoCommand* uc = new UBGraphicsTextItemUndoCommand(textItem);
UBApplication::undoStack->push(uc);
}
}
UBGraphicsMediaItem* UBGraphicsScene::addMedia(const QUrl& pMediaFileUrl, bool shouldPlayAsap, const QPointF& pPos)
{
qDebug() << pMediaFileUrl.toLocalFile();
if (!QFile::exists(pMediaFileUrl.toLocalFile()))
if (!QFile::exists(pMediaFileUrl.toString()))
return NULL;
UBGraphicsMediaItem * mediaItem = UBGraphicsMediaItem::createMediaItem(pMediaFileUrl);
if(mediaItem)
connect(UBApplication::boardController, SIGNAL(activeSceneChanged()), mediaItem, SLOT(activeSceneChanged()));
mediaItem->setPos(pPos);
mediaItem->setFlag(QGraphicsItem::ItemIsMovable, true);
mediaItem->setFlag(QGraphicsItem::ItemIsSelectable, true);
addItem(mediaItem);
mediaItem->show();
if (mUndoRedoStackEnabled) { //should be deleted after scene own undo stack implemented
UBGraphicsItemUndoCommand* uc = new UBGraphicsItemUndoCommand(this, 0, mediaItem);
UBApplication::undoStack->push(uc);
}
if (shouldPlayAsap)
mediaItem->play();
setDocumentUpdated();
return mediaItem;
}
UBGraphicsMediaItem* UBGraphicsScene::addVideo(const QUrl& pVideoFileUrl, bool shouldPlayAsap, const QPointF& pPos)
{
return addMedia(pVideoFileUrl, shouldPlayAsap, pPos);
}
UBGraphicsMediaItem* UBGraphicsScene::addAudio(const QUrl& pAudioFileUrl, bool shouldPlayAsap, const QPointF& pPos)
{
return addMedia(pAudioFileUrl, shouldPlayAsap, pPos);
}
UBGraphicsWidgetItem* UBGraphicsScene::addWidget(const QUrl& pWidgetUrl, const QPointF& pPos)
{
int widgetType = UBGraphicsWidgetItem::widgetType(pWidgetUrl);
if(widgetType == UBWidgetType::Apple)
{
return addAppleWidget(pWidgetUrl, pPos);
}
else if(widgetType == UBWidgetType::W3C)
{
return addW3CWidget(pWidgetUrl, pPos);
}
else
{
qDebug() << "UBGraphicsScene::addWidget: Unknown widget Type";
return 0;
}
}
UBGraphicsAppleWidgetItem* UBGraphicsScene::addAppleWidget(const QUrl& pWidgetUrl, const QPointF& pPos)
{
UBGraphicsAppleWidgetItem *appleWidget = new UBGraphicsAppleWidgetItem(pWidgetUrl);
addGraphicsWidget(appleWidget, pPos);
return appleWidget;
}
UBGraphicsW3CWidgetItem* UBGraphicsScene::addW3CWidget(const QUrl& pWidgetUrl, const QPointF& pPos)
{
UBGraphicsW3CWidgetItem *w3CWidget = new UBGraphicsW3CWidgetItem(pWidgetUrl, 0);
addGraphicsWidget(w3CWidget, pPos);
return w3CWidget;
}
void UBGraphicsScene::addGraphicsWidget(UBGraphicsWidgetItem* graphicsWidget, const QPointF& pPos)
{
graphicsWidget->setFlag(QGraphicsItem::ItemIsSelectable, true);
addItem(graphicsWidget);
qreal ssf = 1 / UBApplication::boardController->systemScaleFactor();
graphicsWidget->setTransform(QTransform::fromScale(ssf, ssf), true);
graphicsWidget->setPos(QPointF(pPos.x() - graphicsWidget->boundingRect().width() / 2,
pPos.y() - graphicsWidget->boundingRect().height() / 2));
if (graphicsWidget->canBeContent())
{
graphicsWidget->loadMainHtml();
graphicsWidget->setSelected(true);
if (mUndoRedoStackEnabled) { //should be deleted after scene own undo stack implemented
UBGraphicsItemUndoCommand* uc = new UBGraphicsItemUndoCommand(this, 0, graphicsWidget);
UBApplication::undoStack->push(uc);
}
setDocumentUpdated();
}
else
{
UBApplication::boardController->moveGraphicsWidgetToControlView(graphicsWidget);
}
UBApplication::boardController->controlView()->setFocus();
}
UBGraphicsW3CWidgetItem* UBGraphicsScene::addOEmbed(const QUrl& pContentUrl, const QPointF& pPos)
{
QStringList widgetPaths = UBPersistenceManager::persistenceManager()->allWidgets(UBSettings::settings()->applicationApplicationsLibraryDirectory());
UBGraphicsW3CWidgetItem *widget = 0;
foreach(QString widgetPath, widgetPaths)
{
if (widgetPath.contains("VideoPicker"))
{
widget = addW3CWidget(QUrl::fromLocalFile(widgetPath), pPos);
if (widget)
{
widget->setPreference("oembedUrl", pContentUrl.toString());
setDocumentUpdated();
break;
}
}
}
return widget;
}
UBGraphicsGroupContainerItem *UBGraphicsScene::createGroup(QList<QGraphicsItem *> items)
{
UBGraphicsGroupContainerItem *groupItem = new UBGraphicsGroupContainerItem();
addItem(groupItem);
foreach (QGraphicsItem *item, items) {
if (item->type() == UBGraphicsGroupContainerItem::Type) {
QList<QGraphicsItem*> childItems = item->childItems();
UBGraphicsGroupContainerItem *currentGroup = dynamic_cast<UBGraphicsGroupContainerItem*>(item);
if (currentGroup) {
currentGroup->destroy();
}
foreach (QGraphicsItem *chItem, childItems) {
groupItem->addToGroup(chItem);
mFastAccessItems.removeAll(chItem);
}
} else {
groupItem->addToGroup(item);
mFastAccessItems.removeAll(item);
}
}
groupItem->setVisible(true);
groupItem->setFocus();
if (mUndoRedoStackEnabled) { //should be deleted after scene own undo stack implemented
UBGraphicsItemGroupUndoCommand* uc = new UBGraphicsItemGroupUndoCommand(this, groupItem);
UBApplication::undoStack->push(uc);
}
setDocumentUpdated();
return groupItem;
}
void UBGraphicsScene::addGroup(UBGraphicsGroupContainerItem *groupItem)
{
addItem(groupItem);
for (int i = 0; i < groupItem->childItems().count(); i++)
{
QGraphicsItem *it = qgraphicsitem_cast<QGraphicsItem *>(groupItem->childItems().at(i));
if (it)
{
mFastAccessItems.removeAll(it);
}
}
groupItem->setVisible(true);
groupItem->setFocus();
if (groupItem->uuid().isNull()) {
groupItem->setUuid(QUuid::createUuid());
}
if (mUndoRedoStackEnabled) { //should be deleted after scene own undo stack implemented
UBGraphicsItemUndoCommand* uc = new UBGraphicsItemUndoCommand(this, 0, groupItem);
UBApplication::undoStack->push(uc);
}
setDocumentUpdated();
}
UBGraphicsSvgItem* UBGraphicsScene::addSvg(const QUrl& pSvgFileUrl, const QPointF& pPos, const QByteArray pData)
{
QString path = pSvgFileUrl.toLocalFile();
UBGraphicsSvgItem *svgItem;
if (pData.isNull())
svgItem = new UBGraphicsSvgItem(path);
else
svgItem = new UBGraphicsSvgItem(pData);
svgItem->setFlag(QGraphicsItem::ItemIsMovable, true);
svgItem->setFlag(QGraphicsItem::ItemIsSelectable, true);
qreal sscale = 1 / UBApplication::boardController->systemScaleFactor();
svgItem->setTransform(QTransform::fromScale(sscale, sscale), true);
QPointF half(svgItem->boundingRect().width() / 2, svgItem->boundingRect().height() / 2);
svgItem->setPos(pPos - half);
svgItem->show();
addItem(svgItem);
if (mUndoRedoStackEnabled) { //should be deleted after scene own undo stack implemented
UBGraphicsItemUndoCommand* uc = new UBGraphicsItemUndoCommand(this, 0, svgItem);
UBApplication::undoStack->push(uc);
}
setDocumentUpdated();
QString documentPath = UBApplication::boardController->selectedDocument()->persistencePath();
QString fileName = UBPersistenceManager::imageDirectory + "/" + svgItem->uuid().toString() + ".svg";
QString completePath = documentPath + "/" + fileName;
if (!QFile::exists(completePath))
{
QDir dir;
dir.mkdir(documentPath + "/" + UBPersistenceManager::imageDirectory);
QFile file(completePath);
if (!file.open(QIODevice::WriteOnly))
{
qWarning() << "cannot open file for writing embeded svg content " << completePath;
return NULL;
}
file.write(svgItem->fileData());
file.close();
}
return svgItem;
}
UBGraphicsTextItem* UBGraphicsScene::addText(const QString& pString, const QPointF& pTopLeft)
{
return addTextWithFont(pString, pTopLeft, UBSettings::settings()->fontPixelSize()
, UBSettings::settings()->fontFamily(), UBSettings::settings()->isBoldFont()
, UBSettings::settings()->isItalicFont());
}
UBGraphicsTextItem* UBGraphicsScene::addTextWithFont(const QString& pString, const QPointF& pTopLeft
, int pointSize, const QString& fontFamily, bool bold, bool italic)
{
UBGraphicsTextItem *textItem = new UBGraphicsTextItem();
textItem->setPlainText(pString);
QFont font = textItem->font();
if (fontFamily == "")
{
font = QFont(UBSettings::settings()->fontFamily());
}
else
{
font = QFont(fontFamily);
}
if (pointSize < 1)
{
font.setPixelSize(UBSettings::settings()->fontPixelSize());
}
else
{
font.setPointSize(pointSize);
}
font.setBold(bold);
font.setItalic(italic);
textItem->setFont(font);
QFontMetrics fi(font);
QRect br = fi.boundingRect(pString);
textItem->setTextWidth(qMax((qreal)br.width() + 50, (qreal)200));
textItem->setTextHeight(br.height());
addItem(textItem);
textItem->setPos(pTopLeft);
textItem->show();
if (mUndoRedoStackEnabled) { //should be deleted after scene own undo stack implemented
UBGraphicsItemUndoCommand* uc = new UBGraphicsItemUndoCommand(this, 0, textItem);
UBApplication::undoStack->push(uc);
}
connect(textItem, SIGNAL(textUndoCommandAdded(UBGraphicsTextItem *)), this, SLOT(textUndoCommandAdded(UBGraphicsTextItem *)));
textItem->setSelected(true);
textItem->setFocus();
setDocumentUpdated();
return textItem;
}
UBGraphicsTextItem *UBGraphicsScene::addTextHtml(const QString &pString, const QPointF& pTopLeft)
{
UBGraphicsTextItem *textItem = new UBGraphicsTextItem();
textItem->setPlainText("");
textItem->setHtml(UBTextTools::cleanHtml(pString));
addItem(textItem);
textItem->show();
if (mUndoRedoStackEnabled) { //should be deleted after scene own undo stack implemented
UBGraphicsItemUndoCommand* uc = new UBGraphicsItemUndoCommand(this, 0, textItem);
UBApplication::undoStack->push(uc);
}
connect(textItem, SIGNAL(textUndoCommandAdded(UBGraphicsTextItem *)), this, SLOT(textUndoCommandAdded(UBGraphicsTextItem *)));
textItem->setFocus();
setDocumentUpdated();
textItem->setPos(pTopLeft);
return textItem;
}
void UBGraphicsScene::addItem(QGraphicsItem* item)
{
UBCoreGraphicsScene::addItem(item);
// the default z value is already set. This is the case when a svg file is read
if(item->zValue() == DEFAULT_Z_VALUE
|| item->zValue() == UBZLayerController::errorNum()
|| !mZLayerController->zLevelAvailable(item->zValue()))
{
qreal zvalue = mZLayerController->generateZLevel(item);
UBGraphicsItem::assignZValue(item, zvalue);
}
else
notifyZChanged(item, item->zValue());
if (!mTools.contains(item))
++mItemCount;
mFastAccessItems << item;
}
void UBGraphicsScene::addItems(const QSet<QGraphicsItem*>& items)
{
foreach(QGraphicsItem* item, items) {
UBCoreGraphicsScene::addItem(item);
UBGraphicsItem::assignZValue(item, mZLayerController->generateZLevel(item));
}
mItemCount += items.size();
mFastAccessItems += items.toList();
}
void UBGraphicsScene::removeItem(QGraphicsItem* item)
{
item->setSelected(false);
UBCoreGraphicsScene::removeItem(item);
UBApplication::boardController->freezeW3CWidget(item, true);
if (!mTools.contains(item))
--mItemCount;
mFastAccessItems.removeAll(item);
/* delete the item if it is cache to allow its reinstanciation, because Cache implements design pattern Singleton. */
if (dynamic_cast<UBGraphicsCache*>(item))
UBCoreGraphicsScene::deleteItem(item);
}
void UBGraphicsScene::removeItems(const QSet<QGraphicsItem*>& items)
{
foreach(QGraphicsItem* item, items)
UBCoreGraphicsScene::removeItem(item);
mItemCount -= items.size();
foreach(QGraphicsItem* item, items)
mFastAccessItems.removeAll(item);
}
void UBGraphicsScene::deselectAllItems()
{
foreach(QGraphicsItem *gi, selectedItems ())
{
gi->clearFocus();
gi->setSelected(false);
// Hide selection frame
if (mSelectionFrame) {
mSelectionFrame->setEnclosedItems(QList<QGraphicsItem*>());
}
UBGraphicsTextItem* textItem = dynamic_cast<UBGraphicsTextItem*>(gi);
if(textItem)
textItem->activateTextEditor(false);
}
}
void UBGraphicsScene::deselectAllItemsExcept(QGraphicsItem* item)
{
foreach(QGraphicsItem* eachItem,selectedItems()){
if(eachItem != item){
eachItem->setSelected(false);
UBGraphicsTextItem* textItem = dynamic_cast<UBGraphicsTextItem*>(eachItem);
if(textItem)
textItem->activateTextEditor(false);
}
}
}
/**
* Return the bounding rectangle of all items on the page except for tools (ruler, compass,...)
*/
QRectF UBGraphicsScene::annotationsBoundingRect() const
{
QRectF boundingRect;
foreach (QGraphicsItem *item, items()) {
if (!mTools.contains(rootItem(item)))
boundingRect |= item->sceneBoundingRect();
}
return boundingRect;
}
bool UBGraphicsScene::isEmpty() const
{
return mItemCount == 0;
}
QGraphicsItem* UBGraphicsScene::setAsBackgroundObject(QGraphicsItem* item, bool pAdaptTransformation, bool pExpand)
{
if (mBackgroundObject)
{
removeItem(mBackgroundObject);
mBackgroundObject = 0;
}
if (item)
{
item->setFlag(QGraphicsItem::ItemIsSelectable, false);
item->setFlag(QGraphicsItem::ItemIsMovable, false);
item->setAcceptedMouseButtons(Qt::NoButton);
item->setData(UBGraphicsItemData::ItemLayerType, UBItemLayerType::FixedBackground);
if (pAdaptTransformation)
{
item = scaleToFitDocumentSize(item, true, 0, pExpand);
}
if (item->scene() != this)
addItem(item);
mZLayerController->setLayerType(item, itemLayerType::BackgroundItem);
UBGraphicsItem::assignZValue(item, mZLayerController->generateZLevel(item));
mBackgroundObject = item;
}
return item;
}
void UBGraphicsScene::unsetBackgroundObject()
{
if (!mBackgroundObject)
return;
mBackgroundObject->setFlag(QGraphicsItem::ItemIsSelectable, true);
mBackgroundObject->setFlag(QGraphicsItem::ItemIsMovable, true);
mBackgroundObject->setAcceptedMouseButtons(Qt::LeftButton);
// Item zLayer and Layer Type should be set by the caller of this function, as
// it may depend on the object type, where it was before, etc.
mBackgroundObject = 0;
}
QRectF UBGraphicsScene::normalizedSceneRect(qreal ratio)
{
QRectF normalizedRect(nominalSize().width() / -2, nominalSize().height() / -2,
nominalSize().width(), nominalSize().height());
foreach(QGraphicsItem* gi, mFastAccessItems)
{
if(gi && gi->isVisible() && !mTools.contains(gi))
{
normalizedRect = normalizedRect.united(gi->sceneBoundingRect());
}
}
if (ratio > 0.0)
{
qreal normalizedRectRatio = normalizedRect.width() / normalizedRect.height();
if (normalizedRectRatio > ratio)
{
//the normalized rect is too wide, we increase height
qreal newHeight = normalizedRect.width() / ratio;
qreal offset = (newHeight - normalizedRect.height()) / 2;
normalizedRect.setY(normalizedRect.y() - offset);
normalizedRect.setHeight(newHeight);
}
else if (normalizedRectRatio < ratio)
{
//the normalized rect is too high, we increase the width
qreal newWidth = normalizedRect.height() * ratio;
qreal offset = (newWidth - normalizedRect.width()) / 2;
normalizedRect.setX(normalizedRect.x() - offset);
normalizedRect.setWidth(newWidth);
}
}
return normalizedRect;
}
QGraphicsItem *UBGraphicsScene::itemForUuid(QUuid uuid)
{
QGraphicsItem *result = 0;
QString ui = uuid.toString();
//simple search before implementing container for fast access
foreach (QGraphicsItem *item, items()) {
if (UBGraphicsScene::getPersonalUuid(item) == uuid && !uuid.isNull()) {
result = item;
}
}
return result;
}
void UBGraphicsScene::setDocument(UBDocumentProxy* pDocument)
{
if (pDocument != mDocument)
{
if (mDocument)
{
setModified(true);
}
mDocument = pDocument;
setParent(pDocument);
}
}
QGraphicsItem* UBGraphicsScene::scaleToFitDocumentSize(QGraphicsItem* item, bool center, int margin, bool expand)
{
int maxWidth = mNominalSize.width() - (margin * 2);
int maxHeight = mNominalSize.height() - (margin * 2);
QRectF size = item->sceneBoundingRect();
if (expand || size.width() > maxWidth || size.height() > maxHeight)
{
qreal ratio = qMin(maxWidth / size.width(), maxHeight / size.height());
item->setTransform(QTransform::fromScale(ratio, ratio), true);
if(center)
{
item->setPos(item->sceneBoundingRect().width() / -2.0,
item->sceneBoundingRect().height() / -2.0);
}
}
return item;
}
void UBGraphicsScene::addRuler(QPointF center)
{
UBGraphicsRuler* ruler = new UBGraphicsRuler(); // mem : owned and destroyed by the scene
mTools << ruler;
QRectF rect = ruler->rect();
ruler->setRect(center.x() - rect.width()/2, center.y() - rect.height()/2, rect.width(), rect.height());
ruler->setData(UBGraphicsItemData::ItemLayerType, QVariant(UBItemLayerType::Tool));
addItem(ruler);
ruler->setVisible(true);
}
void UBGraphicsScene::addProtractor(QPointF center)
{
// Protractor
UBGraphicsProtractor* protractor = new UBGraphicsProtractor(); // mem : owned and destroyed by the scene
mTools << protractor;
protractor->setData(UBGraphicsItemData::ItemLayerType, QVariant(UBItemLayerType::Tool));
addItem(protractor);
QPointF itemSceneCenter = protractor->sceneBoundingRect().center();
protractor->moveBy(center.x() - itemSceneCenter.x(), center.y() - itemSceneCenter.y());
protractor->setVisible(true);
}
void UBGraphicsScene::addTriangle(QPointF center)
{
// Triangle
UBGraphicsTriangle* triangle = new UBGraphicsTriangle(); // mem : owned and destroyed by the scene
mTools << triangle;
triangle->setData(UBGraphicsItemData::ItemLayerType, QVariant(UBItemLayerType::Tool));
addItem(triangle);
QPointF itemSceneCenter = triangle->sceneBoundingRect().center();
triangle->moveBy(center.x() - itemSceneCenter.x(), center.y() - itemSceneCenter.y());
triangle->setVisible(true);
}
void UBGraphicsScene::addMagnifier(UBMagnifierParams params)
{
// can have only one magnifier at one time
if(magniferControlViewWidget) return;
QWidget *cContainer = (QWidget*)(UBApplication::boardController->controlContainer());
QGraphicsView *cView = (QGraphicsView*)UBApplication::boardController->controlView();
QGraphicsView *dView = (QGraphicsView*)UBApplication::boardController->displayView();
QPoint dvZeroPoint = dView->mapToGlobal(QPoint(0,0));
int cvW = cView->width();
int dvW = dView->width();
qreal wCoeff = (qreal)dvW / (qreal)cvW;
int cvH = cView->height();
int dvH = dView->height();
qreal hCoeff = (qreal)dvH / (qreal)cvH;
QPoint ccPoint(params.x,params.y);
QPoint globalPoint = cContainer->mapToGlobal(ccPoint);
QPoint cvPoint = cView->mapFromGlobal(globalPoint);
QPoint dvPoint( cvPoint.x() * wCoeff + dvZeroPoint.x(), cvPoint.y() * hCoeff + dvZeroPoint.y());
magniferControlViewWidget = new UBMagnifier((QWidget*)(UBApplication::boardController->controlContainer()), true);
magniferControlViewWidget->setGrabView((QGraphicsView*)UBApplication::boardController->controlView());
magniferControlViewWidget->setMoveView((QWidget*)(UBApplication::boardController->controlContainer()));
magniferControlViewWidget->setSize(params.sizePercentFromScene);
magniferControlViewWidget->setZoom(params.zoom);
magniferDisplayViewWidget = new UBMagnifier((QWidget*)(UBApplication::boardController->displayView()), false);
magniferDisplayViewWidget->setGrabView((QGraphicsView*)UBApplication::boardController->controlView());
magniferDisplayViewWidget->setMoveView((QGraphicsView*)UBApplication::boardController->displayView());
magniferDisplayViewWidget->setSize(params.sizePercentFromScene);
magniferDisplayViewWidget->setZoom(params.zoom);
magniferControlViewWidget->grabNMove(globalPoint, globalPoint, true);
magniferDisplayViewWidget->grabNMove(globalPoint, dvPoint, true);
magniferControlViewWidget->show();
magniferDisplayViewWidget->show();
connect(magniferControlViewWidget, SIGNAL(magnifierMoved_Signal(QPoint)), this, SLOT(moveMagnifier(QPoint)));
connect(magniferControlViewWidget, SIGNAL(magnifierClose_Signal()), this, SLOT(closeMagnifier()));
connect(magniferControlViewWidget, SIGNAL(magnifierZoomIn_Signal()), this, SLOT(zoomInMagnifier()));
connect(magniferControlViewWidget, SIGNAL(magnifierZoomOut_Signal()), this, SLOT(zoomOutMagnifier()));
connect(magniferControlViewWidget, SIGNAL(magnifierDrawingModeChange_Signal(int)), this, SLOT(changeMagnifierMode(int)));
connect(magniferControlViewWidget, SIGNAL(magnifierResized_Signal(qreal)), this, SLOT(resizedMagnifier(qreal)));
setModified(true);
}
void UBGraphicsScene::moveMagnifier()
{
if (magniferControlViewWidget)
{
QPoint magnifierPos = QPoint(magniferControlViewWidget->pos().x() + magniferControlViewWidget->size().width() / 2, magniferControlViewWidget->pos().y() + magniferControlViewWidget->size().height() / 2 );
moveMagnifier(magnifierPos, true);
setModified(true);
}
}
void UBGraphicsScene::moveMagnifier(QPoint newPos, bool forceGrab)
{
QWidget *cContainer = (QWidget*)(UBApplication::boardController->controlContainer());
QGraphicsView *cView = (QGraphicsView*)UBApplication::boardController->controlView();
QGraphicsView *dView = (QGraphicsView*)UBApplication::boardController->displayView();
QPoint dvZeroPoint = dView->mapToGlobal(QPoint(0,0));
int cvW = cView->width();
int dvW = dView->width();
qreal wCoeff = (qreal)dvW / (qreal)cvW;
int cvH = cView->height();
int dvH = dView->height();
qreal hCoeff = (qreal)dvH / (qreal)cvH;
QPoint globalPoint = cContainer->mapToGlobal(newPos);
QPoint cvPoint = cView->mapFromGlobal(globalPoint);
QPoint dvPoint( cvPoint.x() * wCoeff + dvZeroPoint.x(), cvPoint.y() * hCoeff + dvZeroPoint.y());
magniferControlViewWidget->grabNMove(globalPoint, globalPoint, forceGrab, false);
magniferDisplayViewWidget->grabNMove(globalPoint, dvPoint, forceGrab, true);
setModified(true);
}
void UBGraphicsScene::closeMagnifier()
{
DisposeMagnifierQWidgets();
setModified(true);
}
void UBGraphicsScene::zoomInMagnifier()
{
if(magniferControlViewWidget->params.zoom < 8)
{
magniferControlViewWidget->setZoom(magniferControlViewWidget->params.zoom + 0.5);
magniferDisplayViewWidget->setZoom(magniferDisplayViewWidget->params.zoom + 0.5);
}
}
void UBGraphicsScene::zoomOutMagnifier()
{
if(magniferControlViewWidget->params.zoom > 1)
{
magniferControlViewWidget->setZoom(magniferControlViewWidget->params.zoom - 0.5);
magniferDisplayViewWidget->setZoom(magniferDisplayViewWidget->params.zoom - 0.5);
setModified(true);
}
}
void UBGraphicsScene::changeMagnifierMode(int mode)
{
if(magniferControlViewWidget)
magniferControlViewWidget->setDrawingMode(mode);
}
void UBGraphicsScene::resizedMagnifier(qreal newPercent)
{
if(newPercent > 18 && newPercent < 50)
{
magniferControlViewWidget->setSize(newPercent);
magniferControlViewWidget->grabPoint();
magniferDisplayViewWidget->setSize(newPercent);
magniferDisplayViewWidget->grabPoint();
setModified(true);
}
}
void UBGraphicsScene::addCompass(QPointF center)
{
UBGraphicsCompass* compass = new UBGraphicsCompass(); // mem : owned and destroyed by the scene
mTools << compass;
addItem(compass);
QRectF rect = compass->rect();
compass->setRect(center.x() - rect.width() / 2, center.y() - rect.height() / 2, rect.width(), rect.height());
compass->setData(UBGraphicsItemData::ItemLayerType, QVariant(UBItemLayerType::Tool));
compass->setVisible(true);
}
void UBGraphicsScene::addCache()
{
UBGraphicsCache* cache = UBGraphicsCache::instance(this);
if (!items().contains(cache)) {
addItem(cache);
cache->setData(UBGraphicsItemData::ItemLayerType, QVariant(UBItemLayerType::Tool));
cache->setVisible(true);
cache->setSelected(true);
UBApplication::boardController->notifyCache(true);
UBApplication::boardController->notifyPageChanged();
}
}
void UBGraphicsScene::addMask(const QPointF ¢er)
{
UBGraphicsCurtainItem* curtain = new UBGraphicsCurtainItem(); // mem : owned and destroyed by the scene
mTools << curtain;
addItem(curtain);
QRectF rect = UBApplication::boardController->activeScene()->normalizedSceneRect();
rect.setRect(center.x() - rect.width()/4, center.y() - rect.height()/4, rect.width()/2 , rect.height()/2);
curtain->setRect(rect);
curtain->setVisible(true);
curtain->setSelected(true);
}
void UBGraphicsScene::setRenderingQuality(UBItem::RenderingQuality pRenderingQuality)
{
QListIterator<QGraphicsItem*> itItems(mFastAccessItems);
while (itItems.hasNext())
{
QGraphicsItem *gItem = itItems.next();
UBItem *ubItem = dynamic_cast<UBItem*>(gItem);
if (ubItem)
{
ubItem->setRenderingQuality(pRenderingQuality);
}
}
}
QList<QUrl> UBGraphicsScene::relativeDependencies() const
{
QList<QUrl> relativePathes;
QListIterator<QGraphicsItem*> itItems(mFastAccessItems);
while (itItems.hasNext())
{
QGraphicsItem* item = itItems.next();
UBGraphicsVideoItem *videoItem = qgraphicsitem_cast<UBGraphicsVideoItem*> (item);
if (videoItem){
QString completeFileName = QFileInfo(videoItem->mediaFileUrl().toLocalFile()).fileName();
QString path = UBPersistenceManager::videoDirectory + "/";
relativePathes << QUrl(path + completeFileName);
continue;
}
UBGraphicsAudioItem *audioItem = qgraphicsitem_cast<UBGraphicsAudioItem*> (item);
if (audioItem){
QString completeFileName = QFileInfo(audioItem->mediaFileUrl().toLocalFile()).fileName();
QString path = UBPersistenceManager::audioDirectory + "/";
relativePathes << QUrl(path + completeFileName);
continue;
}
UBGraphicsWidgetItem* widget = qgraphicsitem_cast<UBGraphicsWidgetItem*>(item);
if(widget){
QString widgetPath = UBPersistenceManager::widgetDirectory + "/" + widget->uuid().toString() + ".wgt";
QString screenshotPath = UBPersistenceManager::widgetDirectory + "/" + widget->uuid().toString().remove("{").remove("}") + ".png";
relativePathes << QUrl(widgetPath);
relativePathes << QUrl(screenshotPath);
continue;
}
UBGraphicsPixmapItem* pixmapItem = qgraphicsitem_cast<UBGraphicsPixmapItem*>(item);
if(pixmapItem){
relativePathes << QUrl(UBPersistenceManager::imageDirectory + "/" + pixmapItem->uuid().toString() + ".png");
continue;
}
UBGraphicsSvgItem* svgItem = qgraphicsitem_cast<UBGraphicsSvgItem*>(item);
if(svgItem){
relativePathes << QUrl(UBPersistenceManager::imageDirectory + "/" + svgItem->uuid().toString() + ".svg");
continue;
}
}
return relativePathes;
}
QSize UBGraphicsScene::nominalSize()
{
if (mDocument && !mNominalSize.isValid())
{
mNominalSize = mDocument->defaultDocumentSize();
}
return mNominalSize;
}
/**
* @brief Return the scene's boundary size, including any background item
*
* If no background item is present, this returns nominalSize()
*/
QSize UBGraphicsScene::sceneSize()
{
UBGraphicsPDFItem *pdfItem = qgraphicsitem_cast<UBGraphicsPDFItem*>(backgroundObject());
if (pdfItem) {
QRectF targetRect = pdfItem->sceneBoundingRect();
return targetRect.size().toSize();
}
else
return nominalSize();
}
void UBGraphicsScene::setNominalSize(const QSize& pSize)
{
if (nominalSize() != pSize)
{
mNominalSize = pSize;
if(mDocument)
mDocument->setDefaultDocumentSize(pSize);
}
}
void UBGraphicsScene::setNominalSize(int pWidth, int pHeight)
{
setNominalSize(QSize(pWidth, pHeight));
}
void UBGraphicsScene::setSelectedZLevel(QGraphicsItem * item)
{
item->setZValue(mZLayerController->generateZLevel(itemLayerType::SelectedItem));
}
void UBGraphicsScene::setOwnZlevel(QGraphicsItem *item)
{
item->setZValue(item->data(UBGraphicsItemData::ItemOwnZValue).toReal());
}
QUuid UBGraphicsScene::getPersonalUuid(QGraphicsItem *item)
{
QString idCandidate = item->data(UBGraphicsItemData::ItemUuid).toString();
return idCandidate == QUuid().toString() ? QUuid() : QUuid(idCandidate);
}
qreal UBGraphicsScene::changeZLevelTo(QGraphicsItem *item, UBZLayerController::moveDestination dest, bool addUndo)
{
qreal previousZVal = item->data(UBGraphicsItemData::ItemOwnZValue).toReal();
qreal res = mZLayerController->changeZLevelTo(item, dest);
if(addUndo){
UBGraphicsItemZLevelUndoCommand* uc = new UBGraphicsItemZLevelUndoCommand(this, item, previousZVal, dest);
UBApplication::undoStack->push(uc);
}
return res;
}
QGraphicsItem* UBGraphicsScene::rootItem(QGraphicsItem* item) const
{
QGraphicsItem* root = item;
while (root->parentItem())
{
root = root->parentItem();
}
return root;
}
void UBGraphicsScene::drawItems (QPainter * painter, int numItems,
QGraphicsItem * items[], const QStyleOptionGraphicsItem options[], QWidget * widget)
{
if (mRenderingContext == NonScreen || mRenderingContext == PdfExport)
{
int count = 0;
QGraphicsItem** itemsFiltered = new QGraphicsItem*[numItems];
QStyleOptionGraphicsItem *optionsFiltered = new QStyleOptionGraphicsItem[numItems];
for (int i = 0; i < numItems; i++)
{
if (!mTools.contains(rootItem(items[i])))
{
bool isPdfItem = qgraphicsitem_cast<UBGraphicsPDFItem*> (items[i]) != NULL;
if(!isPdfItem || mRenderingContext == NonScreen)
{
itemsFiltered[count] = items[i];
optionsFiltered[count] = options[i];
count++;
}
}
}
QGraphicsScene::drawItems(painter, count, itemsFiltered, optionsFiltered, widget);
delete[] optionsFiltered;
delete[] itemsFiltered;
}
else if (mRenderingContext == Podcast)
{
int count = 0;
QGraphicsItem** itemsFiltered = new QGraphicsItem*[numItems];
QStyleOptionGraphicsItem *optionsFiltered = new QStyleOptionGraphicsItem[numItems];
for (int i = 0; i < numItems; i++)
{
bool ok;
int itemLayerType = items[i]->data(UBGraphicsItemData::ItemLayerType).toInt(&ok);
if (ok && (itemLayerType >= UBItemLayerType::FixedBackground && itemLayerType <= UBItemLayerType::Tool))
{
itemsFiltered[count] = items[i];
optionsFiltered[count] = options[i];
count++;
}
}
QGraphicsScene::drawItems(painter, count, itemsFiltered, optionsFiltered, widget);
delete[] optionsFiltered;
delete[] itemsFiltered;
}
else
{
QGraphicsScene::drawItems(painter, numItems, items, options, widget);
}
}
void UBGraphicsScene::drawBackground(QPainter *painter, const QRectF &rect)
{
if (mIsDesktopMode)
{
QGraphicsScene::drawBackground (painter, rect);
return;
}
bool darkBackground = isDarkBackground ();
if (darkBackground)
{
painter->fillRect (rect, QBrush (QColor (Qt::black)));
}
else
{
painter->fillRect (rect, QBrush (QColor (Qt::white)));
}
if (mZoomFactor > 0.5)
{
QColor bgCrossColor;
if (darkBackground)
bgCrossColor = QColor(UBSettings::settings()->boardCrossColorDarkBackground->get().toString());
else
bgCrossColor = QColor(UBSettings::settings()->boardCrossColorLightBackground->get().toString());
if (mZoomFactor < 0.7)
{
int alpha = 255 * mZoomFactor / 2;
bgCrossColor.setAlpha (alpha); // fade the crossing on small zooms
}
painter->setPen (bgCrossColor);
if (mPageBackground == UBPageBackground::crossed)
{
qreal firstY = ((int) (rect.y () / backgroundGridSize())) * backgroundGridSize();
for (qreal yPos = firstY; yPos < rect.y () + rect.height (); yPos += backgroundGridSize())
{
painter->drawLine (rect.x (), yPos, rect.x () + rect.width (), yPos);
}
qreal firstX = ((int) (rect.x () / backgroundGridSize())) * backgroundGridSize();
for (qreal xPos = firstX; xPos < rect.x () + rect.width (); xPos += backgroundGridSize())
{
painter->drawLine (xPos, rect.y (), xPos, rect.y () + rect.height ());
}
}
else if (mPageBackground == UBPageBackground::ruled)
{
qreal firstY = ((int) (rect.y () / backgroundGridSize())) * backgroundGridSize();
for (qreal yPos = firstY; yPos < rect.y () + rect.height (); yPos += backgroundGridSize())
{
painter->drawLine (rect.x (), yPos, rect.x () + rect.width (), yPos);
}
}
}
}
void UBGraphicsScene::keyReleaseEvent(QKeyEvent * keyEvent)
{
QList<QGraphicsItem*> si = selectedItems();
if(keyEvent->matches(QKeySequence::SelectAll)){
QListIterator<QGraphicsItem*> itItems(this->mFastAccessItems);
while (itItems.hasNext())
itItems.next()->setSelected(true);
keyEvent->accept();
return;
}
if ((si.size() > 0) && (keyEvent->isAccepted()))
{
#ifdef Q_OS_MAC
if (keyEvent->key() == Qt::Key_Backspace)
#else
if (keyEvent->matches(QKeySequence::Delete))
#endif
{
QVector<UBGraphicsItem*> ubItemsToRemove;
QVector<QGraphicsItem*> itemToRemove;
bool bRemoveOk = true;
foreach(QGraphicsItem* item, si)
{
switch (item->type())
{
case UBGraphicsWidgetItem::Type:
{
UBGraphicsW3CWidgetItem *wc3_widget = dynamic_cast<UBGraphicsW3CWidgetItem*>(item);
if (0 != wc3_widget)
if (!wc3_widget->hasFocus())
ubItemsToRemove << wc3_widget;
break;
}
case UBGraphicsTextItem::Type:
{
UBGraphicsTextItem *text_item = dynamic_cast<UBGraphicsTextItem*>(item);
if (0 != text_item){
if (!text_item->hasFocus())
ubItemsToRemove << text_item;
else
bRemoveOk = false;
}
break;
}
case UBGraphicsGroupContainerItem::Type:
{
UBGraphicsGroupContainerItem* group_item = dynamic_cast<UBGraphicsGroupContainerItem*>(item);
if(NULL != group_item){
if(!hasTextItemWithFocus(group_item))
ubItemsToRemove << group_item;
else
bRemoveOk = false;
}
break;
}
default:
{
UBGraphicsItem *ubgi = dynamic_cast<UBGraphicsItem*>(item);
if (0 != ubgi)
ubItemsToRemove << ubgi;
else
itemToRemove << item;
}
}
}
if(bRemoveOk){
foreach(UBGraphicsItem* pUBItem, ubItemsToRemove){
pUBItem->remove();
}
foreach(QGraphicsItem* pItem, itemToRemove){
UBCoreGraphicsScene::removeItem(pItem);
}
}
}
keyEvent->accept();
}
QGraphicsScene::keyReleaseEvent(keyEvent);
}
bool UBGraphicsScene::hasTextItemWithFocus(UBGraphicsGroupContainerItem *item){
bool bHasFocus = false;
foreach(QGraphicsItem* pItem, item->childItems()){
UBGraphicsTextItem *text_item = dynamic_cast<UBGraphicsTextItem*>(pItem);
if (NULL != text_item){
if(text_item->hasFocus()){
bHasFocus = true;
break;
}
}
}
return bHasFocus;
}
void UBGraphicsScene::simplifyCurrentStroke()
{
if (!mCurrentStroke)
return;
UBGraphicsStroke* simplerStroke = mCurrentStroke->simplify();
if (!simplerStroke)
return;
foreach(UBGraphicsPolygonItem* poly, mCurrentStroke->polygons()){
mPreviousPolygonItems.removeAll(poly);
removeItem(poly);
}
mCurrentStroke = simplerStroke;
foreach(UBGraphicsPolygonItem* poly, mCurrentStroke->polygons()) {
addItem(poly);
mPreviousPolygonItems.append(poly);
}
}
void UBGraphicsScene::setDocumentUpdated()
{
if (document())
document()->setMetaData(UBSettings::documentUpdatedAt
, UBStringUtils::toUtcIsoDateTime(QDateTime::currentDateTime()));
}
void UBGraphicsScene::createEraiser()
{
if (UBSettings::settings()->showEraserPreviewCircle->get().toBool()) {
mEraser = new QGraphicsEllipseItem(); // mem : owned and destroyed by the scene
mEraser->setRect(QRect(0, 0, 0, 0));
mEraser->setVisible(false);
updateEraserColor();
mEraser->setData(UBGraphicsItemData::ItemLayerType, QVariant(UBItemLayerType::Control));
mEraser->setData(UBGraphicsItemData::itemLayerType, QVariant(itemLayerType::Eraiser)); //Necessary to set if we want z value to be assigned correctly
mTools << mEraser;
addItem(mEraser);
}
}
void UBGraphicsScene::createPointer()
{
mPointer = new QGraphicsEllipseItem(); // mem : owned and destroyed by the scene
mPointer->setRect(QRect(0, 0, 20, 20));
mPointer->setVisible(false);
mPointer->setPen(Qt::NoPen);
mPointer->setBrush(QBrush(QColor(255, 0, 0, 186)));
mPointer->setData(UBGraphicsItemData::ItemLayerType, QVariant(UBItemLayerType::Tool));
mPointer->setData(UBGraphicsItemData::itemLayerType, QVariant(itemLayerType::Pointer)); //Necessary to set if we want z value to be assigned correctly
mTools << mPointer;
addItem(mPointer);
}
void UBGraphicsScene::createMarkerCircle()
{
if (UBSettings::settings()->showMarkerPreviewCircle->get().toBool()) {
mMarkerCircle = new QGraphicsEllipseItem();
mMarkerCircle->setRect(QRect(0, 0, 0, 0));
mMarkerCircle->setVisible(false);
mMarkerCircle->setPen(Qt::DotLine);
updateMarkerCircleColor();
mMarkerCircle->setData(UBGraphicsItemData::ItemLayerType, QVariant(UBItemLayerType::Control));
mMarkerCircle->setData(UBGraphicsItemData::itemLayerType, QVariant(itemLayerType::Eraiser));
mTools << mMarkerCircle;
addItem(mMarkerCircle);
}
}
void UBGraphicsScene::createPenCircle()
{
if (UBSettings::settings()->showPenPreviewCircle->get().toBool()) {
mPenCircle = new QGraphicsEllipseItem();
mPenCircle->setRect(QRect(0, 0, 0, 0));
mPenCircle->setVisible(false);
mPenCircle->setPen(Qt::DotLine);
updatePenCircleColor();
mPenCircle->setData(UBGraphicsItemData::ItemLayerType, QVariant(UBItemLayerType::Control));
mPenCircle->setData(UBGraphicsItemData::itemLayerType, QVariant(itemLayerType::Eraiser));
mTools << mPenCircle;
addItem(mPenCircle);
}
}
void UBGraphicsScene::updateEraserColor()
{
if (!mEraser)
return;
if (mDarkBackground) {
mEraser->setBrush(UBSettings::eraserBrushDarkBackground);
mEraser->setPen(UBSettings::eraserPenDarkBackground);
}
else {
mEraser->setBrush(UBSettings::eraserBrushLightBackground);
mEraser->setPen(UBSettings::eraserPenLightBackground);
}
}
void UBGraphicsScene::updateMarkerCircleColor()
{
if (!mMarkerCircle)
return;
QPen mcPen = mMarkerCircle->pen();
if (mDarkBackground) {
mcPen.setColor(UBSettings::markerCirclePenColorDarkBackground);
mMarkerCircle->setBrush(UBSettings::markerCircleBrushColorDarkBackground);
}
else {
mcPen.setColor(UBSettings::markerCirclePenColorLightBackground);
mMarkerCircle->setBrush(UBSettings::markerCircleBrushColorLightBackground);
}
mcPen.setStyle(Qt::DotLine);
mMarkerCircle->setPen(mcPen);
}
void UBGraphicsScene::updatePenCircleColor()
{
if (!mPenCircle)
return;
QPen mcPen = mPenCircle->pen();
if (mDarkBackground) {
mcPen.setColor(UBSettings::penCirclePenColorDarkBackground);
mPenCircle->setBrush(UBSettings::penCircleBrushColorDarkBackground);
}
else {
mcPen.setColor(UBSettings::penCirclePenColorLightBackground);
mPenCircle->setBrush(UBSettings::penCircleBrushColorLightBackground);
}
mcPen.setStyle(Qt::DotLine);
mPenCircle->setPen(mcPen);
}
void UBGraphicsScene::setToolCursor(int tool)
{
if (tool == (int)UBStylusTool::Selector ||
tool == (int)UBStylusTool::Text ||
tool == (int)UBStylusTool::Play) {
deselectAllItems();
hideMarkerCircle();
hidePenCircle();
}
if (mCurrentStroke && mCurrentStroke->polygons().empty()){
delete mCurrentStroke;
mCurrentStroke = NULL;
}
}
void UBGraphicsScene::initStroke()
{
mCurrentStroke = new UBGraphicsStroke(this);
}