1 /***************************************************************************
2 * copyright (C) 2008 by Marco Gittler (g.marco@freenet.de) *
3 * Copyright (C) 2008 by Jean-Baptiste Mardelle (jb@kdenlive.org) *
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. *
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. *
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 ***************************************************************************/
21 #include "graphicsscenerectmove.h"
24 #include <QGraphicsSceneMouseEvent>
25 #include <QGraphicsRectItem>
26 #include <QGraphicsSvgItem>
27 #include <QGraphicsView>
29 #include <QTextCursor>
32 #include <QApplication>
36 GraphicsSceneRectMove::GraphicsSceneRectMove(QObject *parent) :
37 QGraphicsScene(parent),
39 m_resizeMode(NoResize),
40 m_tool(TITLE_RECTANGLE)
44 setBackgroundBrush(QBrush(Qt::transparent));
48 void GraphicsSceneRectMove::setSelectedItem(QGraphicsItem *item)
51 m_selectedItem = item;
52 item->setSelected(true);
56 TITLETOOL GraphicsSceneRectMove::tool()
61 void GraphicsSceneRectMove::setTool(TITLETOOL tool)
66 setCursor(Qt::CrossCursor);
69 setCursor(Qt::IBeamCursor);
72 setCursor(Qt::ArrowCursor);
76 void GraphicsSceneRectMove::keyPressEvent(QKeyEvent * keyEvent)
78 if (m_selectedItem == NULL || !(m_selectedItem->flags() & QGraphicsItem::ItemIsMovable)) {
79 QGraphicsScene::keyPressEvent(keyEvent);
83 if (m_selectedItem->type() == 8) {
84 QGraphicsTextItem *t = static_cast<QGraphicsTextItem *>(m_selectedItem);
85 if (t->textInteractionFlags() & Qt::TextEditorInteraction) {
86 QGraphicsScene::keyPressEvent(keyEvent);
90 if (keyEvent->modifiers() & Qt::ControlModifier) diff = 10;
91 switch (keyEvent->key()) {
93 m_selectedItem->setPos(m_selectedItem->pos() - QPointF(diff, 0));
97 m_selectedItem->setPos(m_selectedItem->pos() + QPointF(diff, 0));
101 m_selectedItem->setPos(m_selectedItem->pos() - QPointF(0, diff));
105 m_selectedItem->setPos(m_selectedItem->pos() + QPointF(0, diff));
109 case Qt::Key_Backspace:
110 delete m_selectedItem;
111 m_selectedItem = NULL;
112 emit selectionChanged();
115 QGraphicsScene::keyPressEvent(keyEvent);
117 emit actionFinished();
120 void GraphicsSceneRectMove::mouseDoubleClickEvent(QGraphicsSceneMouseEvent* e)
122 QPointF p = e->scenePos();
124 m_resizeMode = NoResize;
125 m_selectedItem = NULL;
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;
131 QGraphicsItem* g = i.at(0);
133 if (g->type() == 8) {
134 QGraphicsTextItem *t = static_cast<QGraphicsTextItem *>(g);
136 t->setTextInteractionFlags(Qt::TextEditorInteraction);
137 } else emit doubleClickEvent();
139 QGraphicsScene::mouseDoubleClickEvent(e);
142 void GraphicsSceneRectMove::mouseReleaseEvent(QGraphicsSceneMouseEvent *e)
144 if (m_tool == TITLE_RECTANGLE && m_selectedItem) setSelectedItem(m_selectedItem);
145 QGraphicsScene::mouseReleaseEvent(e);
146 emit actionFinished();
149 void GraphicsSceneRectMove::mousePressEvent(QGraphicsSceneMouseEvent* e)
151 m_clickPoint = e->screenPos();
152 QPointF p = e->scenePos();
154 m_resizeMode = NoResize;
155 const QList <QGraphicsItem *> list = items(QRectF(p , QSizeF(4, 4)).toRect());
156 QGraphicsItem *item = NULL;
157 bool hasSelected = false;
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()) {
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);
178 m_selectedItem = NULL;
179 foreach(QGraphicsItem* g, list) {
180 if (g->zValue() > -1000) {
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);
196 t->setTextInteractionFlags(Qt::NoTextInteraction);
197 setCursor(Qt::ClosedHandCursor);
198 } else if (item->type() == 3 || item->type() == 13 || item->type() == 7) {
200 if (m_selectedItem->type() == 3)
201 r = ((QGraphicsRectItem*)m_selectedItem)->rect();
203 r = m_selectedItem->boundingRect();
205 * The vertices of the rectangle (check for matrix
206 * transformation); to be replaced by QTransform::map()?
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))
233 else if (borderRight.collidesWithPath(mouseArea))
234 m_resizeMode = Right;
235 else if (borderTop.collidesWithPath(mouseArea))
237 else if (borderBottom.collidesWithPath(mouseArea))
240 setCursor(Qt::ClosedHandCursor);
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);
256 kDebug() << "////// MOUSE CLICK, RESIZE MODE: " << m_resizeMode;
260 void GraphicsSceneRectMove::clearTextSelection()
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);
270 m_selectedItem = NULL;
274 void GraphicsSceneRectMove::mouseMoveEvent(QGraphicsSceneMouseEvent* e)
276 if ((e->screenPos() - m_clickPoint).manhattanLength() < QApplication::startDragDistance()) {
280 if (m_selectedItem && e->buttons() & Qt::LeftButton) {
281 if (m_selectedItem->type() == 3 || m_selectedItem->type() == 13 || m_selectedItem->type() == 7) {
283 if (m_selectedItem->type() == 3)
284 newrect = ((QGraphicsRectItem*)m_selectedItem)->rect();
286 newrect = m_selectedItem->boundingRect();
287 QPointF newpoint = e->scenePos();
289 * The vertices of the rectangle (check for matrix
290 * transformation); to be replaced by QTransform::map()?
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());
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
306 int determinantH, determinantV;
307 switch (m_resizeMode) {
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);
317 m_resizeMode = BottomLeft;
319 if (determinantH < 0)
320 m_resizeMode = TopRight;
322 m_resizeMode = BottomRight;
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()));
333 m_resizeMode = TopLeft;
335 if (determinantH < 0)
336 m_resizeMode = BottomRight;
338 m_resizeMode = 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()));
349 m_resizeMode = BottomRight;
351 if (determinantH < 0)
352 m_resizeMode = TopLeft;
354 m_resizeMode = BottomLeft;
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);
364 m_resizeMode = TopRight;
366 if (determinantH < 0)
367 m_resizeMode = BottomLeft;
369 m_resizeMode = TopLeft;
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()));
378 m_resizeMode = 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());
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()));
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());
403 QPointF diff = e->scenePos() - m_sceneClickPoint;
404 m_sceneClickPoint = e->scenePos();
405 m_selectedItem->moveBy(diff.x(), diff.y());
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);
419 gi->setRect(newrect);
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();
428 //gi->setPos(m_selectedItem->scenePos());
429 /*if (resizeMode == NoResize) {
430 QGraphicsScene::mouseMoveEvent(e);
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);
439 QPointF diff = e->scenePos() - m_sceneClickPoint;
440 m_sceneClickPoint = e->scenePos();
441 m_selectedItem->moveBy(diff.x(), diff.y());
444 } else if (m_tool == TITLE_SELECT) {
445 QPointF p = e->scenePos();
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) {
452 setCursor(Qt::OpenHandCursor);
454 } else if (g->type() == 3 && g->zValue() > -1000) {
455 QRectF r = ((const QGraphicsRectItem*)g)->rect();
458 * The vertices of the rectangle (check for matrix
459 * transformation); to be replaced by QTransform::map()?
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());
485 setCursor(Qt::OpenHandCursor);
488 if (!itemFound) setCursor(Qt::ArrowCursor);
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());
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);
506 void GraphicsSceneRectMove::wheelEvent(QGraphicsSceneWheelEvent * wheelEvent)
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);
515 } else wheelEvent->setAccepted(false);
518 void GraphicsSceneRectMove::setScale(double s)
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);
527 //kDebug()<<"////////// ZOOM: "<<zoom;
530 void GraphicsSceneRectMove::setZoom(double s)
532 QList<QGraphicsView*> viewlist = views();
533 if (viewlist.size() > 0) {
534 viewlist[0]->resetTransform();
535 viewlist[0]->scale(s, s);
539 //kDebug()<<"////////// ZOOM: "<<zoom;
542 void GraphicsSceneRectMove::setCursor(QCursor c)
544 const QList<QGraphicsView*> l = views();
545 foreach(QGraphicsView* v, l) {
550 void GraphicsSceneRectMove::setResizeCursor(qreal angle)
552 // % is not working...
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);
567 void GraphicsSceneRectMove::slotUpdateFontSize(int s)
572 #include "graphicsscenerectmove.moc"