git.sesse.net Git - kdenlive/blob - src/graphicsscenerectmove.cpp

   1 /***************************************************************************
   2  *   copyright (C) 2008 by Marco Gittler (g.marco@freenet.de)                                 *
   3  *   Copyright (C) 2008 by Jean-Baptiste Mardelle (jb@kdenlive.org)        *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
  19  ***************************************************************************/
  20
  21 #include "graphicsscenerectmove.h"
  22
  23 #include <KDebug>
  24 #include <QGraphicsSceneMouseEvent>
  25 #include <QGraphicsRectItem>
  26 #include <QGraphicsSvgItem>
  27 #include <QGraphicsView>
  28 #include <QCursor>
  29 #include <QTextCursor>
  30 #include <QList>
  31 #include <QKeyEvent>
  32 #include <QApplication>
  33 #include <QTextBlock>
  34
  35
  36 GraphicsSceneRectMove::GraphicsSceneRectMove(QObject *parent) :
  37     QGraphicsScene(parent),
  38     m_selectedItem(NULL),
  39     m_resizeMode(NoResize),
  40     m_tool(TITLE_RECTANGLE)
  41 {
  42     //grabMouse();
  43     m_zoom = 1.0;
  44     setBackgroundBrush(QBrush(Qt::transparent));
  45     m_fontSize = 0;
  46 }
  47
  48 void GraphicsSceneRectMove::setSelectedItem(QGraphicsItem *item)
  49 {
  50     clearSelection();
  51     m_selectedItem = item;
  52     item->setSelected(true);
  53     update();
  54 }
  55
  56 TITLETOOL GraphicsSceneRectMove::tool() const
  57 {
  58     return m_tool;
  59 }
  60
  61 void GraphicsSceneRectMove::setTool(TITLETOOL tool)
  62 {
  63     m_tool = tool;
  64     switch (m_tool) {
  65     case TITLE_RECTANGLE:
  66         setCursor(Qt::CrossCursor);
  67         break;
  68     case TITLE_TEXT:
  69         setCursor(Qt::IBeamCursor);
  70         break;
  71     default:
  72         setCursor(Qt::ArrowCursor);
  73     }
  74 }
  75
  76 void GraphicsSceneRectMove::keyPressEvent(QKeyEvent * keyEvent)
  77 {
  78     if (m_selectedItem == NULL || !(m_selectedItem->flags() & QGraphicsItem::ItemIsMovable)) {
  79         QGraphicsScene::keyPressEvent(keyEvent);
  80         return;
  81     }
  82     if (m_selectedItem->type() == QGraphicsTextItem::Type) {
  83         QGraphicsTextItem *t = static_cast<QGraphicsTextItem *>(m_selectedItem);
  84         if (t->textInteractionFlags() & Qt::TextEditorInteraction) {
  85             QGraphicsScene::keyPressEvent(keyEvent);
  86             return;
  87         }
  88     }
  89     int diff = 1;
  90     if (keyEvent->modifiers() & Qt::ControlModifier) diff = 10;
  91     switch (keyEvent->key()) {
  92     case Qt::Key_Left:
  93         foreach (QGraphicsItem *qgi, selectedItems()) { qgi->moveBy(-diff,0); }
  94         emit itemMoved();
  95         break;
  96     case Qt::Key_Right:
  97         foreach (QGraphicsItem *qgi, selectedItems()) { qgi->moveBy( diff,0); }
  98         emit itemMoved();
  99         break;
 100     case Qt::Key_Up:
 101         foreach (QGraphicsItem *qgi, selectedItems()) { qgi->moveBy(0,-diff); }
 102         emit itemMoved();
 103         break;
 104     case Qt::Key_Down:
 105         foreach (QGraphicsItem *qgi, selectedItems()) { qgi->moveBy(0, diff); }
 106         emit itemMoved();
 107         break;
 108     case Qt::Key_Delete:
 109     case Qt::Key_Backspace:
 110         foreach (QGraphicsItem *qgi, selectedItems()) {
 111             if (qgi->data(-1).toInt() == -1) continue;
 112             removeItem(qgi);
 113             delete qgi;
 114         }
 115         m_selectedItem = NULL;
 116         emit selectionChanged();
 117         break;
 118     default:
 119         QGraphicsScene::keyPressEvent(keyEvent);
 120     }
 121     emit actionFinished();
 122 }
 123
 124 void GraphicsSceneRectMove::mouseDoubleClickEvent(QGraphicsSceneMouseEvent* e)
 125 {
 126     QPointF p = e->scenePos();
 127     p += QPoint(-2, -2);
 128     m_resizeMode = NoResize;
 129     m_selectedItem = NULL;
 130
 131     // http://www.kdenlive.org/mantis/view.php?id=1035
 132     QList<QGraphicsItem*> i = items(QRectF(p , QSizeF(4, 4)).toRect());
 133     if (i.isEmpty()) return;
 134
 135     QGraphicsItem* g = i.first();
 136     if (g->type() == QGraphicsTextItem::Type) {
 137         m_selectedItem = g;
 138         QGraphicsTextItem *t = static_cast<QGraphicsTextItem *>(g);
 139         t->setTextInteractionFlags(Qt::TextEditorInteraction);
 140     } else emit doubleClickEvent();
 141     QGraphicsScene::mouseDoubleClickEvent(e);
 142 }
 143
 144 void GraphicsSceneRectMove::mouseReleaseEvent(QGraphicsSceneMouseEvent *e)
 145 {
 146     if (m_tool == TITLE_RECTANGLE && m_selectedItem) setSelectedItem(m_selectedItem);
 147     QGraphicsScene::mouseReleaseEvent(e);
 148     emit actionFinished();
 149 }
 150
 151 void GraphicsSceneRectMove::mousePressEvent(QGraphicsSceneMouseEvent* e)
 152 {
 153     m_clickPoint = e->screenPos();
 154     QPointF p = e->scenePos();
 155     p += QPoint(-2, -2);
 156     m_resizeMode = NoResize;
 157     const QList <QGraphicsItem *> list = items(QRectF(p , QSizeF(4, 4)).toRect());
 158     QGraphicsItem *item = NULL;
 159
 160     if (m_tool == TITLE_SELECT) {
 161         foreach(QGraphicsItem *g, list) {
 162             kDebug() << " - - CHECKING ITEM Z:" << g->zValue() << ", TYPE: " << g->type();
 163             // check is there is a selected item in list
 164             if (g->zValue() > -1000 && g->isSelected()) {
 165                 item = g;
 166                 break;
 167             }
 168         }
 169         if (item == NULL  || !(item->flags() & QGraphicsItem::ItemIsSelectable)) {
 170             if (m_selectedItem && m_selectedItem->type() == QGraphicsTextItem::Type) {
 171                 // disable text editing
 172                 QGraphicsTextItem *t = static_cast<QGraphicsTextItem *>(m_selectedItem);
 173                 t->textCursor().setPosition(0);
 174                 QTextBlock cur = t->textCursor().block();
 175                 t->setTextCursor(QTextCursor(cur));
 176                 t->setTextInteractionFlags(Qt::NoTextInteraction);
 177             }
 178             m_selectedItem = NULL;
 179             foreach(QGraphicsItem* g, list) {
 180                 if (g->zValue() > -1000) {
 181                     item = g;
 182                     break;
 183                 }
 184             }
 185         }
 186         if (item != NULL && item->flags() & QGraphicsItem::ItemIsMovable) {
 187             m_sceneClickPoint = e->scenePos();
 188             m_selectedItem = item;
 189             kDebug() << "/////////  ITEM TYPE: " << item->type();
 190             if (item->type() == QGraphicsTextItem::Type) {
 191                 QGraphicsTextItem *t = static_cast<QGraphicsTextItem *>(item);
 192                 if (t->textInteractionFlags() == Qt::TextEditorInteraction) {
 193                     QGraphicsScene::mousePressEvent(e);
 194                     return;
 195                 }
 196                 t->setTextInteractionFlags(Qt::NoTextInteraction);
 197                 setCursor(Qt::ClosedHandCursor);
 198             } else if (item->type() == QGraphicsRectItem::Type || item->type() == QGraphicsSvgItem::Type || item->type() == QGraphicsPixmapItem::Type) {
 199                 QRectF r1;
 200                 if (m_selectedItem->type() == QGraphicsRectItem::Type)
 201                     r1 = ((QGraphicsRectItem*)m_selectedItem)->rect().normalized();
 202                 else
 203                     r1 = m_selectedItem->boundingRect().normalized();
 204
 205                 QList<QGraphicsView*> viewlist = views();
 206                 QGraphicsView *view = NULL;
 207                 if (viewlist.size() > 0) view = viewlist[0];
 208                 if (view == NULL) return;
 209                 // Item mapped coordinates
 210                 QPolygon r = m_selectedItem->deviceTransform(view->viewportTransform()).map(r1).toPolygon();
 211                 QPainterPath top(r.point(0));
 212                 top.lineTo(r.point(1));
 213                 QPainterPath bottom(r.point(2));
 214                 bottom.lineTo(r.point(3));
 215                 QPainterPath left(r.point(0));
 216                 left.lineTo(r.point(3));
 217                 QPainterPath right(r.point(1));
 218                 right.lineTo(r.point(2));
 219
 220
 221                 // The area interested by the mouse pointer
 222                 QPoint viewPos = view->mapFromScene(e->scenePos());
 223                 QPainterPath mouseArea;
 224                 mouseArea.addRect(viewPos.x() - 4, viewPos.y() - 4, 8, 8);
 225
 226                 // Check for collisions between the mouse and the borders
 227                 if (mouseArea.contains(r.point(0))) m_resizeMode = TopLeft;
 228                 else if (mouseArea.contains(r.point(2))) m_resizeMode = BottomRight;
 229                 else if (mouseArea.contains(r.point(1))) m_resizeMode = TopRight;
 230                 else if (mouseArea.contains(r.point(3))) m_resizeMode = BottomLeft;
 231                 else if (top.intersects(mouseArea)) m_resizeMode = Up;
 232                 else if (bottom.intersects(mouseArea)) m_resizeMode = Down;
 233                 else if (right.intersects(mouseArea)) m_resizeMode = Right;
 234                 else if (left.intersects(mouseArea)) m_resizeMode = Left;
 235
 236                 else
 237                     setCursor(Qt::ClosedHandCursor);
 238             }
 239         }
 240         QGraphicsScene::mousePressEvent(e);
 241     } else if (m_tool == TITLE_RECTANGLE) {
 242         m_sceneClickPoint = e->scenePos();
 243         m_selectedItem = NULL;
 244     } else if (m_tool == TITLE_TEXT) {
 245         m_selectedItem = addText(QString());
 246         emit newText((QGraphicsTextItem *) m_selectedItem);
 247         m_selectedItem->setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
 248         ((QGraphicsTextItem *)m_selectedItem)->setTextInteractionFlags(Qt::TextEditorInteraction);
 249         m_selectedItem->setPos(e->scenePos() - QPointF(0, (int)(m_fontSize / 2)));
 250         QGraphicsScene::mousePressEvent(e);
 251     }
 252
 253     kDebug() << "//////  MOUSE CLICK, RESIZE MODE: " << m_resizeMode;
 254
 255 }
 256
 257 void GraphicsSceneRectMove::clearTextSelection()
 258 {
 259     if (m_selectedItem && m_selectedItem->type() == QGraphicsTextItem::Type) {
 260         // disable text editing
 261         QGraphicsTextItem *t = static_cast<QGraphicsTextItem *>(m_selectedItem);
 262         t->textCursor().setPosition(0);
 263         QTextBlock cur = t->textCursor().block();
 264         t->setTextCursor(QTextCursor(cur));
 265         t->setTextInteractionFlags(Qt::NoTextInteraction);
 266     }
 267     m_selectedItem = NULL;
 268     clearSelection();
 269 }
 270
 271 void GraphicsSceneRectMove::mouseMoveEvent(QGraphicsSceneMouseEvent* e)
 272 {
 273     if (e->buttons() != Qt::NoButton && (e->screenPos() - m_clickPoint).manhattanLength() < QApplication::startDragDistance()) {
 274         e->accept();
 275         return;
 276     }
 277     if (m_selectedItem && e->buttons() & Qt::LeftButton) {
 278         if (m_selectedItem->type() == QGraphicsRectItem::Type || m_selectedItem->type() == QGraphicsSvgItem::Type || m_selectedItem->type() == QGraphicsPixmapItem::Type) {
 279             QRectF newrect;
 280             if (m_selectedItem->type() == QGraphicsRectItem::Type)
 281                 newrect = ((QGraphicsRectItem*)m_selectedItem)->rect();
 282             else
 283                 newrect = m_selectedItem->boundingRect();
 284             QPointF newpoint = e->scenePos();
 285             /*
 286              * The vertices of the rectangle (check for matrix
 287              * transformation); to be replaced by QTransform::map()?
 288              */
 289             QPointF itemOrigin = m_selectedItem->scenePos();
 290             QTransform transform = m_selectedItem->transform();
 291             QPointF topLeft(transform.m11() * newrect.toRect().left() + transform.m21() * newrect.toRect().top() + transform.m31() + itemOrigin.x(), transform.m22() * newrect.toRect().top() + transform.m12() * newrect.toRect().left() + transform.m32() + itemOrigin.y());
 292             QPointF bottomLeft(transform.m11() * newrect.toRect().left() + transform.m21() * newrect.toRect().bottom() + transform.m31() + itemOrigin.x(), transform.m22() * newrect.toRect().bottom() + transform.m12() * newrect.toRect().left() + transform.m32() + itemOrigin.y());
 293             QPointF topRight(transform.m11() * newrect.toRect().right() + transform.m21() * newrect.toRect().top() + transform.m31() + itemOrigin.x(), transform.m22() * newrect.toRect().top() + transform.m12() * newrect.toRect().right() + transform.m32() + itemOrigin.y());
 294             QPointF bottomRight(transform.m11() * newrect.toRect().right() + transform.m21() * newrect.toRect().bottom() + transform.m31() + itemOrigin.x(), transform.m22() * newrect.toRect().bottom() + transform.m12() * newrect.toRect().right() + transform.m32() + itemOrigin.y());
 295             // Convert the mouse coordinates applying inverted transformation
 296             QPointF newPointRelative = newpoint - itemOrigin;
 297             QPointF resizePoint(transform.inverted().m11() * newPointRelative.x() + transform.inverted().m21() * newPointRelative.y() + transform.inverted().m31(), transform.inverted().m22() * newPointRelative.y() + transform.inverted().m12() * newPointRelative.x() + transform.inverted().m32());
 298             /*
 299              * Will check if the mouse is on the right of the limit lines with a
 300              * determinant (it must be less than zero because the Y axis is
 301              * inverted)
 302              */
 303             int determinantH, determinantV;
 304             // Check whether to resize or to just move the item(s)
 305             switch (m_resizeMode) {
 306             case TopLeft:
 307                 determinantV = (bottomRight.x() - newpoint.x()) * (topRight.y() - newpoint.y()) - (bottomRight.y() - newpoint.y()) * (topRight.x() - newpoint.x());
 308                 determinantH = (bottomLeft.x() - newpoint.x()) * (bottomRight.y() - newpoint.y()) - (bottomLeft.y() - newpoint.y()) * (bottomRight.x() - newpoint.x());
 309                 if (determinantV < 0) {
 310                     if (determinantH < 0) {
 311                         // resizePoint is not working for some reason
 312                         newrect.setBottomRight(QPointF(newrect.width() - (transform.inverted().m11() * resizePoint.x() + transform.inverted().m21() * resizePoint.y() + transform.inverted().m31()), newrect.bottom() - (transform.inverted().m22() * resizePoint.y() + transform.inverted().m12() * resizePoint.x() + transform.inverted().m32())));
 313                         m_selectedItem->setPos(resizePoint + itemOrigin);
 314                     } else
 315                         m_resizeMode = BottomLeft;
 316                 } else {
 317                     if (determinantH < 0)
 318                         m_resizeMode = TopRight;
 319                     else
 320                         m_resizeMode = BottomRight;
 321                 }
 322                 break;
 323             case BottomLeft:
 324                 determinantV = (bottomRight.x() - newpoint.x()) * (topRight.y() - newpoint.y()) - (bottomRight.y() - newpoint.y()) * (topRight.x() - newpoint.x());
 325                 determinantH = (topRight.x() - newpoint.x()) * (topLeft.y() - newpoint.y()) - (topRight.y() - newpoint.y()) * (topLeft.x() - newpoint.x());
 326                 if (determinantV < 0) {
 327                     if (determinantH < 0) {
 328                         newrect.setBottomRight(QPointF(newrect.width() - resizePoint.x(), resizePoint.y()));
 329                         m_selectedItem->setPos(QPointF(transform.m11() * resizePoint.x() + transform.m21() *(newrect.bottom() - resizePoint.y()) + transform.m31() + itemOrigin.x(), transform.m22() *(newrect.bottom() - resizePoint.y()) + transform.m12() * resizePoint.x() + transform.m32() + itemOrigin.y()));
 330                     } else
 331                         m_resizeMode = TopLeft;
 332                 } else {
 333                     if (determinantH < 0)
 334                         m_resizeMode = BottomRight;
 335                     else
 336                         m_resizeMode = TopRight;
 337                 }
 338                 break;
 339             case TopRight:
 340                 determinantV = (topLeft.x() - newpoint.x()) * (bottomLeft.y() - newpoint.y()) - (topLeft.y() - newpoint.y()) * (bottomLeft.x() - newpoint.x());
 341                 determinantH = (bottomLeft.x() - newpoint.x()) * (bottomRight.y() - newpoint.y()) - (bottomLeft.y() - newpoint.y()) * (bottomRight.x() - newpoint.x());
 342                 if (determinantV < 0) {
 343                     if (determinantH < 0) {
 344                         newrect.setBottomRight(QPointF(resizePoint.x(), newrect.bottom() - resizePoint.y()));
 345                         m_selectedItem->setPos(QPointF(transform.m11() *(newrect.width() - resizePoint.x()) + transform.m21() * resizePoint.y() + transform.m31() + itemOrigin.x(), transform.m22() * resizePoint.y() + transform.m12() *(newrect.width() - resizePoint.x()) + transform.m32() + itemOrigin.y()));
 346                     } else
 347                         m_resizeMode = BottomRight;
 348                 } else {
 349                     if (determinantH < 0)
 350                         m_resizeMode = TopLeft;
 351                     else
 352                         m_resizeMode = BottomLeft;
 353                 }
 354                 break;
 355             case BottomRight:
 356                 determinantV = (topLeft.x() - newpoint.x()) * (bottomLeft.y() - newpoint.y()) - (topLeft.y() - newpoint.y()) * (bottomLeft.x() - newpoint.x());
 357                 determinantH = (topRight.x() - newpoint.x()) * (topLeft.y() - newpoint.y()) - (topRight.y() - newpoint.y()) * (topLeft.x() - newpoint.x());
 358                 if (determinantV < 0) {
 359                     if (determinantH < 0)
 360                         newrect.setBottomRight(resizePoint);
 361                     else
 362                         m_resizeMode = TopRight;
 363                 } else {
 364                     if (determinantH < 0)
 365                         m_resizeMode = BottomLeft;
 366                     else
 367                         m_resizeMode = TopLeft;
 368                 }
 369                 break;
 370             case Left:
 371                 determinantV = (bottomRight.x() - newpoint.x()) * (topRight.y() - newpoint.y()) - (bottomRight.y() - newpoint.y()) * (topRight.x() - newpoint.x());
 372                 if (determinantV < 0) {
 373                     newrect.setRight(newrect.width() - resizePoint.x());
 374                     m_selectedItem->setPos(QPointF(transform.m11() * resizePoint.x() + transform.m31() + itemOrigin.x(), transform.m12() * resizePoint.x() + transform.m32() + itemOrigin.y()));
 375                 } else
 376                     m_resizeMode = Right;
 377                 break;
 378             case Right:
 379                 determinantV = (topLeft.x() - newpoint.x()) * (bottomLeft.y() - newpoint.y()) - (topLeft.y() - newpoint.y()) * (bottomLeft.x() - newpoint.x());
 380                 if (determinantV < 0)
 381                     newrect.setRight(resizePoint.x());
 382                 else
 383                     m_resizeMode = Left;
 384                 break;
 385             case Up:
 386                 determinantH = (bottomLeft.x() - newpoint.x()) * (bottomRight.y() - newpoint.y()) - (bottomLeft.y() - newpoint.y()) * (bottomRight.x() - newpoint.x());
 387                 if (determinantH < 0) {
 388                     newrect.setBottom(newrect.bottom() - resizePoint.y());
 389                     m_selectedItem->setPos(QPointF(transform.m21() * resizePoint.y() + transform.m31() + itemOrigin.x(), transform.m22() * resizePoint.y() + transform.m32() + itemOrigin.y()));
 390                 } else
 391                     m_resizeMode = Down;
 392                 break;
 393             case Down:
 394                 determinantH = (topRight.x() - newpoint.x()) * (topLeft.y() - newpoint.y()) - (topRight.y() - newpoint.y()) * (topLeft.x() - newpoint.x());
 395                 if (determinantH < 0)
 396                     newrect.setBottom(resizePoint.y());
 397                 else
 398                     m_resizeMode = Up;
 399                 break;
 400             default:
 401                 QPointF diff = e->scenePos() - m_sceneClickPoint;
 402                 m_sceneClickPoint = e->scenePos();
 403                 foreach (QGraphicsItem *qgi, selectedItems()) { qgi->moveBy(diff.x(), diff.y()); }
 404                 break;
 405             }
 406             if (m_selectedItem->type() == QGraphicsRectItem::Type && m_resizeMode != NoResize) {
 407                 QGraphicsRectItem *gi = (QGraphicsRectItem*)m_selectedItem;
 408                 // Resize using aspect ratio
 409                 if (!m_selectedItem->data(0).isNull()) {
 410                     // we want to keep aspect ratio
 411                     double hRatio = (double) newrect.width() / m_selectedItem->data(0).toInt();
 412                     double vRatio = (double) newrect.height() / m_selectedItem->data(1).toInt();
 413                     if (hRatio < vRatio) newrect.setHeight(m_selectedItem->data(1).toInt() * hRatio);
 414                     else newrect.setWidth(m_selectedItem->data(0).toInt() * vRatio);
 415                 }
 416
 417                 gi->setRect(newrect);
 418             }
 419             /*else {
 420             qreal s;
 421             if (resizeMode == Left || resizeMode == Right ) s = m_selectedItem->boundingRect().width() / newrect.width();
 422             else s = m_selectedItem->boundingRect().height() / newrect.height();
 423             m_selectedItem->scale( 1 / s, 1 / s );
 424             kDebug()<<"/// SCALING SVG, RESIZE MODE: "<<resizeMode<<", RECT:"<<m_selectedItem->boundingRect();
 425             }*/
 426             //gi->setPos(m_selectedItem->scenePos());
 427             /*if (resizeMode == NoResize) {
 428                 QGraphicsScene::mouseMoveEvent(e);
 429                 return;
 430             }*/
 431         } else if (m_selectedItem->type() == QGraphicsTextItem::Type) {
 432             QGraphicsTextItem *t = static_cast<QGraphicsTextItem *>(m_selectedItem);
 433             if (t->textInteractionFlags() & Qt::TextEditorInteraction) {
 434                 QGraphicsScene::mouseMoveEvent(e);
 435                 return;
 436             }
 437             QPointF diff = e->scenePos() - m_sceneClickPoint;
 438             m_sceneClickPoint = e->scenePos();
 439             foreach (QGraphicsItem *qgi, selectedItems()) { qgi->moveBy(diff.x(), diff.y()); }
 440         }
 441         emit itemMoved();
 442     } else if (m_tool == TITLE_SELECT) {
 443         QList<QGraphicsView*> viewlist = views();
 444         QGraphicsView *view = NULL;
 445         if (viewlist.size() > 0) view = viewlist[0];
 446
 447         QPointF p = e->scenePos();
 448         p += QPoint(-2, -2);
 449         m_resizeMode = NoResize;
 450         bool itemFound = false;
 451         QList<QGraphicsItem *> list = items(QRectF(p , QSizeF(4, 4)).toRect());
 452         foreach(const QGraphicsItem* g, list) {
 453             if ((g->type() == QGraphicsSvgItem::Type || g->type() == QGraphicsPixmapItem::Type) && g->zValue() > -1000) {
 454                 // image or svg item
 455                 setCursor(Qt::OpenHandCursor);
 456                 break;
 457             } else if (g->type() == QGraphicsRectItem::Type && g->zValue() > -1000) {
 458                 if (view == NULL) continue;
 459                 QRectF r1 = ((const QGraphicsRectItem*)g)->rect().normalized();
 460                 itemFound = true;
 461
 462                 // Item mapped coordinates
 463                 QPolygon r = g->deviceTransform(view->viewportTransform()).map(r1).toPolygon();
 464                 QPainterPath top(r.point(0));
 465                 top.lineTo(r.point(1));
 466                 QPainterPath bottom(r.point(2));
 467                 bottom.lineTo(r.point(3));
 468                 QPainterPath left(r.point(0));
 469                 left.lineTo(r.point(3));
 470                 QPainterPath right(r.point(1));
 471                 right.lineTo(r.point(2));
 472
 473                 // The area interested by the mouse pointer
 474                 QPoint viewPos = view->mapFromScene(e->scenePos());
 475                 QPainterPath mouseArea;
 476                 mouseArea.addRect(viewPos.x() - 4, viewPos.y() - 4, 8, 8);
 477
 478                 // Check for collisions between the mouse and the borders
 479                 if (mouseArea.contains(r.point(0)) || mouseArea.contains(r.point(2))) setCursor(Qt::SizeFDiagCursor);
 480                 else if (mouseArea.contains(r.point(1)) || mouseArea.contains(r.point(3))) setCursor(Qt::SizeBDiagCursor);
 481                 else if (top.intersects(mouseArea) || bottom.intersects(mouseArea)) setCursor(Qt::SizeVerCursor);
 482                 else if (right.intersects(mouseArea) || left.intersects(mouseArea)) setCursor(Qt::SizeHorCursor);
 483                 else
 484                     setCursor(Qt::OpenHandCursor);
 485                 break;
 486             }
 487             if (!itemFound) setCursor(Qt::ArrowCursor);
 488         }
 489         QGraphicsScene::mouseMoveEvent(e);
 490     } else if (m_tool == TITLE_RECTANGLE && e->buttons() & Qt::LeftButton) {
 491         if (m_selectedItem == NULL) {
 492             // create new rect item
 493             QRectF r(0, 0, e->scenePos().x() - m_sceneClickPoint.x(), e->scenePos().y() - m_sceneClickPoint.y());
 494             r = r.normalized();
 495             m_selectedItem = addRect(QRectF(0, 0, r.width(), r.height()));
 496             emit newRect((QGraphicsRectItem *) m_selectedItem);
 497             m_selectedItem->setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
 498             m_selectedItem->setPos(m_sceneClickPoint);
 499             m_resizeMode = BottomRight;
 500             QGraphicsScene::mouseMoveEvent(e);
 501         }
 502     }
 503 }
 504
 505 void GraphicsSceneRectMove::wheelEvent(QGraphicsSceneWheelEvent * wheelEvent)
 506 {
 507     if (wheelEvent->modifiers() == Qt::ControlModifier) {
 508         QList<QGraphicsView*> viewlist = views();
 509         //kDebug() << wheelEvent->delta() << " " << zoom;
 510         if (viewlist.size() > 0) {
 511             if (wheelEvent->delta() > 0) emit sceneZoom(true);
 512             else emit sceneZoom(false);
 513         }
 514     } else wheelEvent->setAccepted(false);
 515 }
 516
 517 void GraphicsSceneRectMove::setScale(double s)
 518 {
 519     if (m_zoom < 1.0 / 7.0 && s < 1.0) return;
 520     else if (m_zoom > 10.0 / 7.9 && s > 1.0) return;
 521     QList<QGraphicsView*> viewlist = views();
 522     if (viewlist.size() > 0) {
 523         viewlist[0]->scale(s, s);
 524         m_zoom = m_zoom * s;
 525     }
 526     //kDebug()<<"//////////  ZOOM: "<<zoom;
 527 }
 528
 529 void GraphicsSceneRectMove::setZoom(double s)
 530 {
 531     QList<QGraphicsView*> viewlist = views();
 532     if (viewlist.size() > 0) {
 533         viewlist[0]->resetTransform();
 534         viewlist[0]->scale(s, s);
 535         m_zoom = s;
 536     }
 537
 538     //kDebug()<<"//////////  ZOOM: "<<zoom;
 539 }
 540
 541 void GraphicsSceneRectMove::setCursor(QCursor c)
 542 {
 543     const QList<QGraphicsView*> l = views();
 544     foreach(QGraphicsView* v, l) {
 545         v->setCursor(c);
 546     }
 547 }
 548
 549 void GraphicsSceneRectMove::setResizeCursor(qreal angle)
 550 {
 551     // % is not working...
 552     while (angle < 0)
 553         angle += 180;
 554     while (angle >= 180)
 555         angle -= 180;
 556     if (angle > 157.5 || angle <= 22.5)
 557         setCursor(Qt::SizeVerCursor);
 558     else if (angle > 22.5 && angle <= 67.5)
 559         setCursor(Qt::SizeFDiagCursor);
 560     else if (angle > 67.5 && angle <= 112.5)
 561         setCursor(Qt::SizeHorCursor);
 562     else if (angle > 112.5 && angle <= 157.5)
 563         setCursor(Qt::SizeBDiagCursor);
 564 }
 565
 566 void GraphicsSceneRectMove::slotUpdateFontSize(int s)
 567 {
 568     m_fontSize = s;
 569 }
 570
 571 #include "graphicsscenerectmove.moc"