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()
  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     int diff = 1;
  83     if (m_selectedItem->type() == 8) {
  84         QGraphicsTextItem *t = static_cast<QGraphicsTextItem *>(m_selectedItem);
  85         if (t->textInteractionFlags() & Qt::TextEditorInteraction) {
  86             QGraphicsScene::keyPressEvent(keyEvent);
  87             return;
  88         }
  89     }
  90     if (keyEvent->modifiers() & Qt::ControlModifier) diff = 10;
  91     switch (keyEvent->key()) {
  92     case Qt::Key_Left:
  93         m_selectedItem->setPos(m_selectedItem->pos() - QPointF(diff, 0));
  94         emit itemMoved();
  95         break;
  96     case Qt::Key_Right:
  97         m_selectedItem->setPos(m_selectedItem->pos() + QPointF(diff, 0));
  98         emit itemMoved();
  99         break;
 100     case Qt::Key_Up:
 101         m_selectedItem->setPos(m_selectedItem->pos() - QPointF(0, diff));
 102         emit itemMoved();
 103         break;
 104     case Qt::Key_Down:
 105         m_selectedItem->setPos(m_selectedItem->pos() + QPointF(0, diff));
 106         emit itemMoved();
 107         break;
 108     case Qt::Key_Delete:
 109     case Qt::Key_Backspace:
 110         delete m_selectedItem;
 111         m_selectedItem = NULL;
 112         emit selectionChanged();
 113         break;
 114     default:
 115         QGraphicsScene::keyPressEvent(keyEvent);
 116     }
 117     emit actionFinished();
 118 }
 119
 120 void GraphicsSceneRectMove::mouseDoubleClickEvent(QGraphicsSceneMouseEvent* e)
 121 {
 122     QPointF p = e->scenePos();
 123     p += QPoint(-2, -2);
 124     m_resizeMode = NoResize;
 125     m_selectedItem = NULL;
 126
 127     // http://www.kdenlive.org/mantis/view.php?id=1035
 128     QList<QGraphicsItem*> i = items(QRectF(p , QSizeF(4, 4)).toRect());
 129     if (i.size() <= 0) return;
 130
 131     QGraphicsItem* g = i.at(0);
 132     if (g) {
 133         if (g->type() == 8) {
 134             QGraphicsTextItem *t = static_cast<QGraphicsTextItem *>(g);
 135             m_selectedItem = g;
 136             t->setTextInteractionFlags(Qt::TextEditorInteraction);
 137         } else emit doubleClickEvent();
 138     }
 139     QGraphicsScene::mouseDoubleClickEvent(e);
 140 }
 141
 142 void GraphicsSceneRectMove::mouseReleaseEvent(QGraphicsSceneMouseEvent *e)
 143 {
 144     if (m_tool == TITLE_RECTANGLE && m_selectedItem) setSelectedItem(m_selectedItem);
 145     QGraphicsScene::mouseReleaseEvent(e);
 146     emit actionFinished();
 147 }
 148
 149 void GraphicsSceneRectMove::mousePressEvent(QGraphicsSceneMouseEvent* e)
 150 {
 151     m_clickPoint = e->screenPos();
 152     QPointF p = e->scenePos();
 153     p += QPoint(-2, -2);
 154     m_resizeMode = NoResize;
 155     const QList <QGraphicsItem *> list = items(QRectF(p , QSizeF(4, 4)).toRect());
 156     QGraphicsItem *item = NULL;
 157     bool hasSelected = false;
 158
 159     if (m_tool == TITLE_SELECT) {
 160         foreach(QGraphicsItem *g, list) {
 161             kDebug() << " - - CHECKING ITEM Z:" << g->zValue() << ", TYPE: " << g->type();
 162             // check is there is a selected item in list
 163             if (g->zValue() > -1000 && g->isSelected()) {
 164                 hasSelected = true;
 165                 item = g;
 166                 break;
 167             }
 168         }
 169         if (item == NULL  || !(item->flags() & QGraphicsItem::ItemIsSelectable)) {
 170             if (m_selectedItem && m_selectedItem->type() == 8) {
 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() == 8) {
 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() == 3 || item->type() == 13 || item->type() == 7) {
 199                 QRectF r;
 200                 if (m_selectedItem->type() == 3)
 201                     r = ((QGraphicsRectItem*)m_selectedItem)->rect();
 202                 else
 203                     r = m_selectedItem->boundingRect();
 204                 /*
 205                  * The vertices of the rectangle (check for matrix
 206                  * transformation); to be replaced by QTransform::map()?
 207                  */
 208                 QPointF itemOrigin = item->scenePos();
 209                 QTransform transform = item->transform();
 210                 QPointF topLeft(transform.m11() * r.toRect().left() + transform.m21() * r.toRect().top() + transform.m31() + itemOrigin.x(), transform.m22() * r.toRect().top() + transform.m12() * r.toRect().left() + transform.m32() + itemOrigin.y());
 211                 QPointF bottomLeft(transform.m11() * r.toRect().left() + transform.m21() * r.toRect().bottom() + transform.m31() + itemOrigin.x(), transform.m22() * r.toRect().bottom() + transform.m12() * r.toRect().left() + transform.m32() + itemOrigin.y());
 212                 QPointF topRight(transform.m11() * r.toRect().right() + transform.m21() * r.toRect().top() + transform.m31() + itemOrigin.x(), transform.m22() * r.toRect().top() + transform.m12() * r.toRect().right() + transform.m32() + itemOrigin.y());
 213                 QPointF bottomRight(transform.m11() * r.toRect().right() + transform.m21() * r.toRect().bottom() + transform.m31() + itemOrigin.x(), transform.m22() * r.toRect().bottom() + transform.m12() * r.toRect().right() + transform.m32() + itemOrigin.y());
 214                 // The borders (using the transformed coordinates)
 215                 QGraphicsLineItem borderTop(topLeft.x(), topLeft.y(), topRight.x(), topRight.y());
 216                 QGraphicsLineItem borderRight(topRight.x(), topRight.y(), bottomRight.x(), bottomRight.y());
 217                 QGraphicsLineItem borderBottom(bottomRight.x(), bottomRight.y(), bottomLeft.x(), bottomLeft.y());
 218                 QGraphicsLineItem borderLeft(bottomLeft.x(), bottomLeft.y(), topLeft.x(), topLeft.y());
 219                 // The area interested by the mouse pointer
 220                 QPainterPath mouseArea;
 221                 mouseArea.addRect(e->scenePos().toPoint().x() - 4 / m_zoom, e->scenePos().toPoint().y() - 4 / m_zoom, 8 / m_zoom, 8 / m_zoom);
 222                 // Check for collisions between the mouse and the borders
 223                 if (borderLeft.collidesWithPath(mouseArea) && borderTop.collidesWithPath(mouseArea))
 224                     m_resizeMode = TopLeft;
 225                 else if (borderLeft.collidesWithPath(mouseArea) && borderBottom.collidesWithPath(mouseArea))
 226                     m_resizeMode = BottomLeft;
 227                 else if (borderRight.collidesWithPath(mouseArea) && borderTop.collidesWithPath(mouseArea))
 228                     m_resizeMode = TopRight;
 229                 else if (borderRight.collidesWithPath(mouseArea) && borderBottom.collidesWithPath(mouseArea))
 230                     m_resizeMode = BottomRight;
 231                 else if (borderLeft.collidesWithPath(mouseArea))
 232                     m_resizeMode = Left;
 233                 else if (borderRight.collidesWithPath(mouseArea))
 234                     m_resizeMode = Right;
 235                 else if (borderTop.collidesWithPath(mouseArea))
 236                     m_resizeMode = Up;
 237                 else if (borderBottom.collidesWithPath(mouseArea))
 238                     m_resizeMode = Down;
 239                 else
 240                     setCursor(Qt::ClosedHandCursor);
 241             }
 242         }
 243         QGraphicsScene::mousePressEvent(e);
 244     } else if (m_tool == TITLE_RECTANGLE) {
 245         m_sceneClickPoint = e->scenePos();
 246         m_selectedItem = NULL;
 247     } else if (m_tool == TITLE_TEXT) {
 248         m_selectedItem = addText(QString());
 249         emit newText((QGraphicsTextItem *) m_selectedItem);
 250         m_selectedItem->setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
 251         ((QGraphicsTextItem *)m_selectedItem)->setTextInteractionFlags(Qt::TextEditorInteraction);
 252         m_selectedItem->setPos(e->scenePos() - QPointF(0, (int)(m_fontSize/2)));
 253         QGraphicsScene::mousePressEvent(e);
 254     }
 255
 256     kDebug() << "//////  MOUSE CLICK, RESIZE MODE: " << m_resizeMode;
 257
 258 }
 259
 260 void GraphicsSceneRectMove::clearTextSelection()
 261 {
 262     if (m_selectedItem && m_selectedItem->type() == 8) {
 263         // disable text editing
 264         QGraphicsTextItem *t = static_cast<QGraphicsTextItem *>(m_selectedItem);
 265         t->textCursor().setPosition(0);
 266         QTextBlock cur = t->textCursor().block();
 267         t->setTextCursor(QTextCursor(cur));
 268         t->setTextInteractionFlags(Qt::NoTextInteraction);
 269     }
 270     m_selectedItem = NULL;
 271     clearSelection();
 272 }
 273
 274 void GraphicsSceneRectMove::mouseMoveEvent(QGraphicsSceneMouseEvent* e)
 275 {
 276     if ((e->screenPos() - m_clickPoint).manhattanLength() < QApplication::startDragDistance()) {
 277         e->accept();
 278         return;
 279     }
 280     if (m_selectedItem && e->buttons() & Qt::LeftButton) {
 281         if (m_selectedItem->type() == 3 || m_selectedItem->type() == 13 || m_selectedItem->type() == 7) {
 282             QRectF newrect;
 283             if (m_selectedItem->type() == 3)
 284                 newrect = ((QGraphicsRectItem*)m_selectedItem)->rect();
 285             else
 286                 newrect = m_selectedItem->boundingRect();
 287             QPointF newpoint = e->scenePos();
 288             /*
 289              * The vertices of the rectangle (check for matrix
 290              * transformation); to be replaced by QTransform::map()?
 291              */
 292             QPointF itemOrigin = m_selectedItem->scenePos();
 293             QTransform transform = m_selectedItem->transform();
 294             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());
 295             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());
 296             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());
 297             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());
 298             // Convert the mouse coordinates applying inverted transformation
 299             QPointF newPointRelative = newpoint - itemOrigin;
 300             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());
 301             /*
 302              * Will check if the mouse is on the right of the limit lines with a
 303              * determinant (it must be less than zero because the Y axis is
 304              * inverted)
 305              */
 306             int determinantH, determinantV;
 307             switch (m_resizeMode) {
 308             case TopLeft:
 309                 determinantV = (bottomRight.x() - newpoint.x()) * (topRight.y() - newpoint.y()) - (bottomRight.y() - newpoint.y()) * (topRight.x() - newpoint.x());
 310                 determinantH = (bottomLeft.x() - newpoint.x()) * (bottomRight.y() - newpoint.y()) - (bottomLeft.y() - newpoint.y()) * (bottomRight.x() - newpoint.x());
 311                 if (determinantV < 0) {
 312                     if (determinantH < 0) {
 313                         // resizePoint is not working for some reason
 314                         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())));
 315                         m_selectedItem->setPos(resizePoint + itemOrigin);
 316                     } else
 317                         m_resizeMode = BottomLeft;
 318                 } else {
 319                     if (determinantH < 0)
 320                         m_resizeMode = TopRight;
 321                     else
 322                         m_resizeMode = BottomRight;
 323                 }
 324                 break;
 325             case BottomLeft:
 326                 determinantV = (bottomRight.x() - newpoint.x()) * (topRight.y() - newpoint.y()) - (bottomRight.y() - newpoint.y()) * (topRight.x() - newpoint.x());
 327                 determinantH = (topRight.x() - newpoint.x()) * (topLeft.y() - newpoint.y()) - (topRight.y() - newpoint.y()) * (topLeft.x() - newpoint.x());
 328                 if (determinantV < 0) {
 329                     if (determinantH < 0) {
 330                         newrect.setBottomRight(QPointF(newrect.width() - resizePoint.x(), resizePoint.y()));
 331                         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()));
 332                     } else
 333                         m_resizeMode = TopLeft;
 334                 } else {
 335                     if (determinantH < 0)
 336                         m_resizeMode = BottomRight;
 337                     else
 338                         m_resizeMode = TopRight;
 339                 }
 340                 break;
 341             case TopRight:
 342                 determinantV = (topLeft.x() - newpoint.x()) * (bottomLeft.y() - newpoint.y()) - (topLeft.y() - newpoint.y()) * (bottomLeft.x() - newpoint.x());
 343                 determinantH = (bottomLeft.x() - newpoint.x()) * (bottomRight.y() - newpoint.y()) - (bottomLeft.y() - newpoint.y()) * (bottomRight.x() - newpoint.x());
 344                 if (determinantV < 0) {
 345                     if (determinantH < 0) {
 346                         newrect.setBottomRight(QPointF(resizePoint.x(), newrect.bottom() - resizePoint.y()));
 347                         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()));
 348                     } else
 349                         m_resizeMode = BottomRight;
 350                 } else {
 351                     if (determinantH < 0)
 352                         m_resizeMode = TopLeft;
 353                     else
 354                         m_resizeMode = BottomLeft;
 355                 }
 356                 break;
 357             case BottomRight:
 358                 determinantV = (topLeft.x() - newpoint.x()) * (bottomLeft.y() - newpoint.y()) - (topLeft.y() - newpoint.y()) * (bottomLeft.x() - newpoint.x());
 359                 determinantH = (topRight.x() - newpoint.x()) * (topLeft.y() - newpoint.y()) - (topRight.y() - newpoint.y()) * (topLeft.x() - newpoint.x());
 360                 if (determinantV < 0) {
 361                     if (determinantH < 0)
 362                         newrect.setBottomRight(resizePoint);
 363                     else
 364                         m_resizeMode = TopRight;
 365                 } else {
 366                     if (determinantH < 0)
 367                         m_resizeMode = BottomLeft;
 368                     else
 369                         m_resizeMode = TopLeft;
 370                 }
 371                 break;
 372             case Left:
 373                 determinantV = (bottomRight.x() - newpoint.x()) * (topRight.y() - newpoint.y()) - (bottomRight.y() - newpoint.y()) * (topRight.x() - newpoint.x());
 374                 if (determinantV < 0) {
 375                     newrect.setRight(newrect.width() - resizePoint.x());
 376                     m_selectedItem->setPos(QPointF(transform.m11() * resizePoint.x() + transform.m31() + itemOrigin.x(), transform.m12() * resizePoint.x() + transform.m32() + itemOrigin.y()));
 377                 } else
 378                     m_resizeMode = Right;
 379                 break;
 380             case Right:
 381                 determinantV = (topLeft.x() - newpoint.x()) * (bottomLeft.y() - newpoint.y()) - (topLeft.y() - newpoint.y()) * (bottomLeft.x() - newpoint.x());
 382                 if (determinantV < 0)
 383                     newrect.setRight(resizePoint.x());
 384                 else
 385                     m_resizeMode = Left;
 386                 break;
 387             case Up:
 388                 determinantH = (bottomLeft.x() - newpoint.x()) * (bottomRight.y() - newpoint.y()) - (bottomLeft.y() - newpoint.y()) * (bottomRight.x() - newpoint.x());
 389                 if (determinantH < 0) {
 390                     newrect.setBottom(newrect.bottom() - resizePoint.y());
 391                     m_selectedItem->setPos(QPointF(transform.m21() * resizePoint.y() + transform.m31() + itemOrigin.x(), transform.m22() * resizePoint.y() + transform.m32() + itemOrigin.y()));
 392                 } else
 393                     m_resizeMode = Down;
 394                 break;
 395             case Down:
 396                 determinantH = (topRight.x() - newpoint.x()) * (topLeft.y() - newpoint.y()) - (topRight.y() - newpoint.y()) * (topLeft.x() - newpoint.x());
 397                 if (determinantH < 0)
 398                     newrect.setBottom(resizePoint.y());
 399                 else
 400                     m_resizeMode = Up;
 401                 break;
 402             default:
 403                 QPointF diff = e->scenePos() - m_sceneClickPoint;
 404                 m_sceneClickPoint = e->scenePos();
 405                 m_selectedItem->moveBy(diff.x(), diff.y());
 406                 break;
 407             }
 408             if (m_selectedItem->type() == 3 && m_resizeMode != NoResize) {
 409                 QGraphicsRectItem *gi = (QGraphicsRectItem*)m_selectedItem;
 410                 // Resize using aspect ratio
 411                 if (!m_selectedItem->data(0).isNull()) {
 412                     // we want to keep aspect ratio
 413                     double hRatio = (double) newrect.width() / m_selectedItem->data(0).toInt();
 414                     double vRatio = (double) newrect.height() / m_selectedItem->data(1).toInt();
 415                     if (hRatio < vRatio) newrect.setHeight(m_selectedItem->data(1).toInt() * hRatio);
 416                     else newrect.setWidth(m_selectedItem->data(0).toInt() * vRatio);
 417                 }
 418
 419                 gi->setRect(newrect);
 420             }
 421             /*else {
 422             qreal s;
 423             if (resizeMode == Left || resizeMode == Right ) s = m_selectedItem->boundingRect().width() / newrect.width();
 424             else s = m_selectedItem->boundingRect().height() / newrect.height();
 425             m_selectedItem->scale( 1 / s, 1 / s );
 426             kDebug()<<"/// SCALING SVG, RESIZE MODE: "<<resizeMode<<", RECT:"<<m_selectedItem->boundingRect();
 427             }*/
 428             //gi->setPos(m_selectedItem->scenePos());
 429             /*if (resizeMode == NoResize) {
 430                 QGraphicsScene::mouseMoveEvent(e);
 431                 return;
 432             }*/
 433         } else if (m_selectedItem->type() == 8) {
 434             QGraphicsTextItem *t = static_cast<QGraphicsTextItem *>(m_selectedItem);
 435             if (t->textInteractionFlags() & Qt::TextEditorInteraction) {
 436                 QGraphicsScene::mouseMoveEvent(e);
 437                 return;
 438             }
 439             QPointF diff = e->scenePos() - m_sceneClickPoint;
 440             m_sceneClickPoint = e->scenePos();
 441             m_selectedItem->moveBy(diff.x(), diff.y());
 442         }
 443         emit itemMoved();
 444     } else if (m_tool == TITLE_SELECT) {
 445         QPointF p = e->scenePos();
 446         p += QPoint(-2, -2);
 447         m_resizeMode = NoResize;
 448         bool itemFound = false;
 449         foreach(const QGraphicsItem* g, items(QRectF(p , QSizeF(4, 4)).toRect())) {
 450             if ((g->type() == 13 || g->type() == 7) && g->zValue() > -1000) {
 451                 // image or svg item
 452                 setCursor(Qt::OpenHandCursor);
 453                 break;
 454             } else if (g->type() == 3 && g->zValue() > -1000) {
 455                 QRectF r = ((const QGraphicsRectItem*)g)->rect();
 456                 itemFound = true;
 457                 /*
 458                  * The vertices of the rectangle (check for matrix
 459                  * transformation); to be replaced by QTransform::map()?
 460                  */
 461                 QPointF itemOrigin = g->scenePos();
 462                 QTransform transform = g->transform();
 463                 QPointF topLeft(transform.m11() * r.toRect().left() + transform.m21() * r.toRect().top() + transform.m31() + itemOrigin.x(), transform.m22() * r.toRect().top() + transform.m12() * r.toRect().left() + transform.m32() + itemOrigin.y());
 464                 QPointF bottomLeft(transform.m11() * r.toRect().left() + transform.m21() * r.toRect().bottom() + transform.m31() + itemOrigin.x(), transform.m22() * r.toRect().bottom() + transform.m12() * r.toRect().left() + transform.m32() + itemOrigin.y());
 465                 QPointF topRight(transform.m11() * r.toRect().right() + transform.m21() * r.toRect().top() + transform.m31() + itemOrigin.x(), transform.m22() * r.toRect().top() + transform.m12() * r.toRect().right() + transform.m32() + itemOrigin.y());
 466                 QPointF bottomRight(transform.m11() * r.toRect().right() + transform.m21() * r.toRect().bottom() + transform.m31() + itemOrigin.x(), transform.m22() * r.toRect().bottom() + transform.m12() * r.toRect().right() + transform.m32() + itemOrigin.y());
 467                 // The borders (using the transformed coordinates)
 468                 QGraphicsLineItem borderTop(topLeft.x(), topLeft.y(), topRight.x(), topRight.y());
 469                 QGraphicsLineItem borderRight(topRight.x(), topRight.y(), bottomRight.x(), bottomRight.y());
 470                 QGraphicsLineItem borderBottom(bottomRight.x(), bottomRight.y(), bottomLeft.x(), bottomLeft.y());
 471                 QGraphicsLineItem borderLeft(bottomLeft.x(), bottomLeft.y(), topLeft.x(), topLeft.y());
 472                 // The area interested by the mouse pointer
 473                 QPainterPath mouseArea;
 474                 mouseArea.addRect(e->scenePos().toPoint().x() - 4 / m_zoom, e->scenePos().toPoint().y() - 4 / m_zoom, 8 / m_zoom, 8 / m_zoom);
 475                 // Check for collisions between the mouse and the borders
 476                 if ((borderLeft.collidesWithPath(mouseArea) && borderTop.collidesWithPath(mouseArea)) || (borderRight.collidesWithPath(mouseArea) && borderBottom.collidesWithPath(mouseArea)))
 477                     setResizeCursor(borderLeft.line().angle() - 45);
 478                 else if ((borderLeft.collidesWithPath(mouseArea) && borderBottom.collidesWithPath(mouseArea)) || (borderRight.collidesWithPath(mouseArea) && borderTop.collidesWithPath(mouseArea)))
 479                     setResizeCursor(borderLeft.line().angle() + 45);
 480                 else if (borderLeft.collidesWithPath(mouseArea) || borderRight.collidesWithPath(mouseArea))
 481                     setResizeCursor(borderLeft.line().angle());
 482                 else if (borderTop.collidesWithPath(mouseArea) || borderBottom.collidesWithPath(mouseArea))
 483                     setResizeCursor(borderTop.line().angle());
 484                 else
 485                     setCursor(Qt::OpenHandCursor);
 486                 break;
 487             }
 488             if (!itemFound) setCursor(Qt::ArrowCursor);
 489         }
 490         QGraphicsScene::mouseMoveEvent(e);
 491     } else if (m_tool == TITLE_RECTANGLE && e->buttons() & Qt::LeftButton) {
 492         if (m_selectedItem == NULL) {
 493             // create new rect item
 494             QRectF r(0, 0, e->scenePos().x() - m_sceneClickPoint.x(), e->scenePos().y() - m_sceneClickPoint.y());
 495             r = r.normalized();
 496             m_selectedItem = addRect(QRectF(0, 0, r.width(), r.height()));
 497             emit newRect((QGraphicsRectItem *) m_selectedItem);
 498             m_selectedItem->setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
 499             m_selectedItem->setPos(m_sceneClickPoint);
 500             m_resizeMode = BottomRight;
 501             QGraphicsScene::mouseMoveEvent(e);
 502         }
 503     }
 504 }
 505
 506 void GraphicsSceneRectMove::wheelEvent(QGraphicsSceneWheelEvent * wheelEvent)
 507 {
 508     if (wheelEvent->modifiers() == Qt::ControlModifier) {
 509         QList<QGraphicsView*> viewlist = views();
 510         //kDebug() << wheelEvent->delta() << " " << zoom;
 511         if (viewlist.size() > 0) {
 512             if (wheelEvent->delta() > 0) emit sceneZoom(true);
 513             else emit sceneZoom(false);
 514         }
 515     } else wheelEvent->setAccepted(false);
 516 }
 517
 518 void GraphicsSceneRectMove::setScale(double s)
 519 {
 520     if (m_zoom < 1.0 / 7.0 && s < 1.0) return;
 521     else if (m_zoom > 10.0 / 7.9 && s > 1.0) return;
 522     QList<QGraphicsView*> viewlist = views();
 523     if (viewlist.size() > 0) {
 524         viewlist[0]->scale(s, s);
 525         m_zoom = m_zoom * s;
 526     }
 527     //kDebug()<<"//////////  ZOOM: "<<zoom;
 528 }
 529
 530 void GraphicsSceneRectMove::setZoom(double s)
 531 {
 532     QList<QGraphicsView*> viewlist = views();
 533     if (viewlist.size() > 0) {
 534         viewlist[0]->resetTransform();
 535         viewlist[0]->scale(s, s);
 536         m_zoom = s;
 537     }
 538
 539     //kDebug()<<"//////////  ZOOM: "<<zoom;
 540 }
 541
 542 void GraphicsSceneRectMove::setCursor(QCursor c)
 543 {
 544     const QList<QGraphicsView*> l = views();
 545     foreach(QGraphicsView* v, l) {
 546         v->setCursor(c);
 547     }
 548 }
 549
 550 void GraphicsSceneRectMove::setResizeCursor(qreal angle)
 551 {
 552     // % is not working...
 553     while (angle < 0)
 554         angle += 180;
 555     while (angle >= 180)
 556         angle -= 180;
 557     if (angle > 157.5 || angle <= 22.5)
 558         setCursor(Qt::SizeVerCursor);
 559     else if (angle > 22.5 && angle <= 67.5)
 560         setCursor(Qt::SizeFDiagCursor);
 561     else if (angle > 67.5 && angle <= 112.5)
 562         setCursor(Qt::SizeHorCursor);
 563     else if (angle > 112.5 && angle <= 157.5)
 564         setCursor(Qt::SizeBDiagCursor);
 565 }
 566
 567 void GraphicsSceneRectMove::slotUpdateFontSize(int s)
 568 {
 569         m_fontSize = s;
 570 }
 571
 572 #include "graphicsscenerectmove.moc"