+/***************************************************************************
+ * copyright (C) 2008 by Marco Gittler (g.marco@freenet.de) *
+ * Copyright (C) 2008 by Jean-Baptiste Mardelle (jb@kdenlive.org) *
+ * *
+ * This program 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; either version 2 of the License, or *
+ * (at your option) any later version. *
+ * *
+ * This program 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 this program; if not, write to the *
+ * Free Software Foundation, Inc., *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
+ ***************************************************************************/
+
+#include "graphicsscenerectmove.h"
#include <KDebug>
#include <QGraphicsSceneMouseEvent>
#include <QGraphicsSvgItem>
#include <QGraphicsView>
#include <QCursor>
+#include <QTextCursor>
#include <QList>
#include <QKeyEvent>
#include <QApplication>
+#include <QTextBlock>
-#include "graphicsscenerectmove.h"
-GraphicsSceneRectMove::GraphicsSceneRectMove(QObject *parent): QGraphicsScene(parent), m_selectedItem(NULL), resizeMode(NoResize), m_tool(TITLE_RECTANGLE) {
+GraphicsSceneRectMove::GraphicsSceneRectMove(QObject *parent) :
+ QGraphicsScene(parent),
+ m_selectedItem(NULL),
+ m_resizeMode(NoResize),
+ m_tool(TITLE_RECTANGLE)
+{
//grabMouse();
- zoom = 1.0;
- setBackgroundBrush(QBrush(QColor(0, 0, 0, 0)));
+ m_zoom = 1.0;
+ setBackgroundBrush(QBrush(Qt::transparent));
}
-void GraphicsSceneRectMove::setSelectedItem(QGraphicsItem *item) {
+void GraphicsSceneRectMove::setSelectedItem(QGraphicsItem *item)
+{
clearSelection();
m_selectedItem = item;
item->setSelected(true);
update();
}
-TITLETOOL GraphicsSceneRectMove::tool() {
+TITLETOOL GraphicsSceneRectMove::tool()
+{
return m_tool;
}
-void GraphicsSceneRectMove::setTool(TITLETOOL tool) {
+void GraphicsSceneRectMove::setTool(TITLETOOL tool)
+{
m_tool = tool;
switch (m_tool) {
case TITLE_RECTANGLE:
}
}
-//virtual
-void GraphicsSceneRectMove::keyPressEvent(QKeyEvent * keyEvent) {
+void GraphicsSceneRectMove::keyPressEvent(QKeyEvent * keyEvent)
+{
if (m_selectedItem == NULL) {
QGraphicsScene::keyPressEvent(keyEvent);
return;
}
int diff = 1;
+ if (m_selectedItem->type() == 8) {
+ QGraphicsTextItem *t = static_cast<QGraphicsTextItem *>(m_selectedItem);
+ if (t->textInteractionFlags() & Qt::TextEditorInteraction) {
+ QGraphicsScene::keyPressEvent(keyEvent);
+ return;
+ }
+ }
if (keyEvent->modifiers() & Qt::ControlModifier) diff = 10;
switch (keyEvent->key()) {
case Qt::Key_Left:
default:
QGraphicsScene::keyPressEvent(keyEvent);
}
+ emit actionFinished();
}
-//virtual
-void GraphicsSceneRectMove::mouseDoubleClickEvent(QGraphicsSceneMouseEvent* e) {
+void GraphicsSceneRectMove::mouseDoubleClickEvent(QGraphicsSceneMouseEvent* e)
+{
QPointF p = e->scenePos();
p += QPoint(-2, -2);
- resizeMode = NoResize;
+ m_resizeMode = NoResize;
m_selectedItem = NULL;
- QGraphicsItem* g = items(QRectF(p , QSizeF(4, 4)).toRect()).at(0);
+
+ // http://www.kdenlive.org/mantis/view.php?id=1035
+ QList<QGraphicsItem*> i = items(QRectF(p , QSizeF(4, 4)).toRect());
+ if (i.size() <= 0) return;
+
+ QGraphicsItem* g = i.at(0);
if (g) {
if (g->type() == 8) {
QGraphicsTextItem *t = static_cast<QGraphicsTextItem *>(g);
+ m_selectedItem = g;
t->setTextInteractionFlags(Qt::TextEditorInteraction);
- }
+ } else emit doubleClickEvent();
}
QGraphicsScene::mouseDoubleClickEvent(e);
}
-void GraphicsSceneRectMove::mouseReleaseEvent(QGraphicsSceneMouseEvent *e) {
+void GraphicsSceneRectMove::mouseReleaseEvent(QGraphicsSceneMouseEvent *e)
+{
if (m_tool == TITLE_RECTANGLE && m_selectedItem) setSelectedItem(m_selectedItem);
- emit actionFinished();
QGraphicsScene::mouseReleaseEvent(e);
+ emit actionFinished();
}
-void GraphicsSceneRectMove::mousePressEvent(QGraphicsSceneMouseEvent* e) {
+void GraphicsSceneRectMove::mousePressEvent(QGraphicsSceneMouseEvent* e)
+{
+ m_clickPoint = e->screenPos();
QPointF p = e->scenePos();
p += QPoint(-2, -2);
- resizeMode = NoResize;
- QList <QGraphicsItem *> list = items(QRectF(p , QSizeF(4, 4)).toRect());
+ m_resizeMode = NoResize;
+ const QList <QGraphicsItem *> list = items(QRectF(p , QSizeF(4, 4)).toRect());
QGraphicsItem *item = NULL;
bool hasSelected = false;
if (m_selectedItem && m_selectedItem->type() == 8) {
// disable text editing
QGraphicsTextItem *t = static_cast<QGraphicsTextItem *>(m_selectedItem);
+ t->textCursor().setPosition(0);
+ QTextBlock cur = t->textCursor().block();
+ t->setTextCursor(QTextCursor(cur));
t->setTextInteractionFlags(Qt::NoTextInteraction);
}
m_selectedItem = NULL;
}
}
if (item != NULL) {
- m_clickPoint = e->scenePos();
+ m_sceneClickPoint = e->scenePos();
m_selectedItem = item;
kDebug() << "///////// ITEM TYPE: " << item->type();
if (item->type() == 8) {
t->setTextInteractionFlags(Qt::NoTextInteraction);
setCursor(Qt::ClosedHandCursor);
} else if (item->type() == 3 || item->type() == 13 || item->type() == 7) {
- QRectF r = item->boundingRect();
- r.translate(item->scenePos());
- if ((r.toRect().topLeft() - e->scenePos().toPoint()).manhattanLength() < 6 / zoom) {
- resizeMode = TopLeft;
- } else if ((r.toRect().bottomLeft() - e->scenePos().toPoint()).manhattanLength() < 6 / zoom) {
- resizeMode = BottomLeft;
- } else if ((r.toRect().topRight() - e->scenePos().toPoint()).manhattanLength() < 6 / zoom) {
- resizeMode = TopRight;
- } else if ((r.toRect().bottomRight() - e->scenePos().toPoint()).manhattanLength() < 6 / zoom) {
- resizeMode = BottomRight;
- } else if (qAbs(r.toRect().left() - e->scenePos().toPoint().x()) < 3 / zoom) {
- resizeMode = Left;
- } else if (qAbs(r.toRect().right() - e->scenePos().toPoint().x()) < 3 / zoom) {
- resizeMode = Right;
- } else if (qAbs(r.toRect().top() - e->scenePos().toPoint().y()) < 3 / zoom) {
- resizeMode = Up;
- } else if (qAbs(r.toRect().bottom() - e->scenePos().toPoint().y()) < 3 / zoom) {
- resizeMode = Down;
- } else setCursor(Qt::ClosedHandCursor);
+ QRectF r;
+ if (m_selectedItem->type() == 3)
+ r = ((QGraphicsRectItem*)m_selectedItem)->rect();
+ else
+ r = m_selectedItem->boundingRect();
+ /*
+ * The vertices of the rectangle (check for matrix
+ * transformation); to be replaced by QTransform::map()?
+ */
+ QPointF itemOrigin = item->scenePos();
+ QTransform transform = item->transform();
+ 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());
+ 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());
+ 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());
+ 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());
+ // The borders (using the transformed coordinates)
+ QGraphicsLineItem borderTop(topLeft.x(), topLeft.y(), topRight.x(), topRight.y());
+ QGraphicsLineItem borderRight(topRight.x(), topRight.y(), bottomRight.x(), bottomRight.y());
+ QGraphicsLineItem borderBottom(bottomRight.x(), bottomRight.y(), bottomLeft.x(), bottomLeft.y());
+ QGraphicsLineItem borderLeft(bottomLeft.x(), bottomLeft.y(), topLeft.x(), topLeft.y());
+ // The area interested by the mouse pointer
+ QPainterPath mouseArea;
+ mouseArea.addRect(e->scenePos().toPoint().x() - 4 / m_zoom, e->scenePos().toPoint().y() - 4 / m_zoom, 8 / m_zoom, 8 / m_zoom);
+ // Check for collisions between the mouse and the borders
+ if (borderLeft.collidesWithPath(mouseArea) && borderTop.collidesWithPath(mouseArea))
+ m_resizeMode = TopLeft;
+ else if (borderLeft.collidesWithPath(mouseArea) && borderBottom.collidesWithPath(mouseArea))
+ m_resizeMode = BottomLeft;
+ else if (borderRight.collidesWithPath(mouseArea) && borderTop.collidesWithPath(mouseArea))
+ m_resizeMode = TopRight;
+ else if (borderRight.collidesWithPath(mouseArea) && borderBottom.collidesWithPath(mouseArea))
+ m_resizeMode = BottomRight;
+ else if (borderLeft.collidesWithPath(mouseArea))
+ m_resizeMode = Left;
+ else if (borderRight.collidesWithPath(mouseArea))
+ m_resizeMode = Right;
+ else if (borderTop.collidesWithPath(mouseArea))
+ m_resizeMode = Up;
+ else if (borderBottom.collidesWithPath(mouseArea))
+ m_resizeMode = Down;
+ else
+ setCursor(Qt::ClosedHandCursor);
}
}
QGraphicsScene::mousePressEvent(e);
} else if (m_tool == TITLE_RECTANGLE) {
- m_clickPoint = e->scenePos();
+ m_sceneClickPoint = e->scenePos();
m_selectedItem = NULL;
} else if (m_tool == TITLE_TEXT) {
m_selectedItem = addText(QString());
QGraphicsScene::mousePressEvent(e);
}
- kDebug() << "////// MOUSE CLICK, RESIZE MODE: " << resizeMode;
+ kDebug() << "////// MOUSE CLICK, RESIZE MODE: " << m_resizeMode;
}
+void GraphicsSceneRectMove::clearTextSelection()
+{
+ if (m_selectedItem && m_selectedItem->type() == 8) {
+ // disable text editing
+ QGraphicsTextItem *t = static_cast<QGraphicsTextItem *>(m_selectedItem);
+ t->textCursor().setPosition(0);
+ QTextBlock cur = t->textCursor().block();
+ t->setTextCursor(QTextCursor(cur));
+ t->setTextInteractionFlags(Qt::NoTextInteraction);
+ }
+ m_selectedItem = NULL;
+ clearSelection();
+}
-//virtual
-void GraphicsSceneRectMove::mouseMoveEvent(QGraphicsSceneMouseEvent* e) {
-
+void GraphicsSceneRectMove::mouseMoveEvent(QGraphicsSceneMouseEvent* e)
+{
+ if ((e->screenPos() - m_clickPoint).manhattanLength() < QApplication::startDragDistance()) {
+ e->accept();
+ return;
+ }
if (m_selectedItem && e->buttons() & Qt::LeftButton) {
if (m_selectedItem->type() == 3 || m_selectedItem->type() == 13 || m_selectedItem->type() == 7) {
- QRectF newrect = m_selectedItem->boundingRect();
+ QRectF newrect;
+ if (m_selectedItem->type() == 3)
+ newrect = ((QGraphicsRectItem*)m_selectedItem)->rect();
+ else
+ newrect = m_selectedItem->boundingRect();
QPointF newpoint = e->scenePos();
- //newpoint -= m_selectedItem->scenePos();
- switch (resizeMode) {
+ /*
+ * The vertices of the rectangle (check for matrix
+ * transformation); to be replaced by QTransform::map()?
+ */
+ QPointF itemOrigin = m_selectedItem->scenePos();
+ QTransform transform = m_selectedItem->transform();
+ 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());
+ 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());
+ 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());
+ 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());
+ // Convert the mouse coordinates applying inverted transformation
+ QPointF newPointRelative = newpoint - itemOrigin;
+ 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());
+ /*
+ * Will check if the mouse is on the right of the limit lines with a
+ * determinant (it must be less than zero because the Y axis is
+ * inverted)
+ */
+ int determinantH, determinantV;
+ switch (m_resizeMode) {
case TopLeft:
- newrect.setBottomRight(newrect.bottomRight() + m_selectedItem->pos() - newpoint);
- m_selectedItem->setPos(newpoint);
+ determinantV = (bottomRight.x() - newpoint.x()) * (topRight.y() - newpoint.y()) - (bottomRight.y() - newpoint.y()) * (topRight.x() - newpoint.x());
+ determinantH = (bottomLeft.x() - newpoint.x()) * (bottomRight.y() - newpoint.y()) - (bottomLeft.y() - newpoint.y()) * (bottomRight.x() - newpoint.x());
+ if (determinantV < 0) {
+ if (determinantH < 0) {
+ // resizePoint is not working for some reason
+ 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())));
+ m_selectedItem->setPos(resizePoint + itemOrigin);
+ } else
+ m_resizeMode = BottomLeft;
+ } else {
+ if (determinantH < 0)
+ m_resizeMode = TopRight;
+ else
+ m_resizeMode = BottomRight;
+ }
break;
case BottomLeft:
- newrect.setBottomRight(QPointF(newrect.bottomRight().x() + m_selectedItem->pos().x() - newpoint.x(), newpoint.y() - m_selectedItem->pos().y()));
- m_selectedItem->setPos(QPointF(newpoint.x(), m_selectedItem->pos().y()));
+ determinantV = (bottomRight.x() - newpoint.x()) * (topRight.y() - newpoint.y()) - (bottomRight.y() - newpoint.y()) * (topRight.x() - newpoint.x());
+ determinantH = (topRight.x() - newpoint.x()) * (topLeft.y() - newpoint.y()) - (topRight.y() - newpoint.y()) * (topLeft.x() - newpoint.x());
+ if (determinantV < 0) {
+ if (determinantH < 0) {
+ newrect.setBottomRight(QPointF(newrect.width() - resizePoint.x(), resizePoint.y()));
+ 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()));
+ } else
+ m_resizeMode = TopLeft;
+ } else {
+ if (determinantH < 0)
+ m_resizeMode = BottomRight;
+ else
+ m_resizeMode = TopRight;
+ }
break;
case TopRight:
- newrect.setBottomRight(QPointF(newpoint.x() - m_selectedItem->pos().x(), newrect.bottom() + m_selectedItem->pos().y() - newpoint.y()));
- m_selectedItem->setPos(QPointF(m_selectedItem->pos().x(), newpoint.y()));
+ determinantV = (topLeft.x() - newpoint.x()) * (bottomLeft.y() - newpoint.y()) - (topLeft.y() - newpoint.y()) * (bottomLeft.x() - newpoint.x());
+ determinantH = (bottomLeft.x() - newpoint.x()) * (bottomRight.y() - newpoint.y()) - (bottomLeft.y() - newpoint.y()) * (bottomRight.x() - newpoint.x());
+ if (determinantV < 0) {
+ if (determinantH < 0) {
+ newrect.setBottomRight(QPointF(resizePoint.x(), newrect.bottom() - resizePoint.y()));
+ 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()));
+ } else
+ m_resizeMode = BottomRight;
+ } else {
+ if (determinantH < 0)
+ m_resizeMode = TopLeft;
+ else
+ m_resizeMode = BottomLeft;
+ }
break;
case BottomRight:
- newrect.setBottomRight(newpoint - m_selectedItem->pos());
+ determinantV = (topLeft.x() - newpoint.x()) * (bottomLeft.y() - newpoint.y()) - (topLeft.y() - newpoint.y()) * (bottomLeft.x() - newpoint.x());
+ determinantH = (topRight.x() - newpoint.x()) * (topLeft.y() - newpoint.y()) - (topRight.y() - newpoint.y()) * (topLeft.x() - newpoint.x());
+ if (determinantV < 0) {
+ if (determinantH < 0)
+ newrect.setBottomRight(resizePoint);
+ else
+ m_resizeMode = TopRight;
+ } else {
+ if (determinantH < 0)
+ m_resizeMode = BottomLeft;
+ else
+ m_resizeMode = TopLeft;
+ }
break;
case Left:
- newrect.setRight(m_selectedItem->pos().x() + newrect.width() - newpoint.x());
- m_selectedItem->setPos(QPointF(newpoint.x(), m_selectedItem->pos().y()));
+ determinantV = (bottomRight.x() - newpoint.x()) * (topRight.y() - newpoint.y()) - (bottomRight.y() - newpoint.y()) * (topRight.x() - newpoint.x());
+ if (determinantV < 0) {
+ newrect.setRight(newrect.width() - resizePoint.x());
+ m_selectedItem->setPos(QPointF(transform.m11() * resizePoint.x() + transform.m31() + itemOrigin.x(), transform.m12() * resizePoint.x() + transform.m32() + itemOrigin.y()));
+ } else
+ m_resizeMode = Right;
break;
case Right:
- newrect.setRight(newpoint.x() - m_selectedItem->pos().x());
+ determinantV = (topLeft.x() - newpoint.x()) * (bottomLeft.y() - newpoint.y()) - (topLeft.y() - newpoint.y()) * (bottomLeft.x() - newpoint.x());
+ if (determinantV < 0)
+ newrect.setRight(resizePoint.x());
+ else
+ m_resizeMode = Left;
break;
case Up:
- newrect.setBottom(m_selectedItem->pos().y() + newrect.bottom() - newpoint.y());
- m_selectedItem->setPos(QPointF(m_selectedItem->pos().x(), newpoint.y()));
+ determinantH = (bottomLeft.x() - newpoint.x()) * (bottomRight.y() - newpoint.y()) - (bottomLeft.y() - newpoint.y()) * (bottomRight.x() - newpoint.x());
+ if (determinantH < 0) {
+ newrect.setBottom(newrect.bottom() - resizePoint.y());
+ m_selectedItem->setPos(QPointF(transform.m21() * resizePoint.y() + transform.m31() + itemOrigin.x(), transform.m22() * resizePoint.y() + transform.m32() + itemOrigin.y()));
+ } else
+ m_resizeMode = Down;
break;
case Down:
- newrect.setBottom(newpoint.y() - m_selectedItem->pos().y());
+ determinantH = (topRight.x() - newpoint.x()) * (topLeft.y() - newpoint.y()) - (topRight.y() - newpoint.y()) * (topLeft.x() - newpoint.x());
+ if (determinantH < 0)
+ newrect.setBottom(resizePoint.y());
+ else
+ m_resizeMode = Up;
break;
default:
- QPointF diff = e->scenePos() - m_clickPoint;
- m_clickPoint = e->scenePos();
+ QPointF diff = e->scenePos() - m_sceneClickPoint;
+ m_sceneClickPoint = e->scenePos();
m_selectedItem->moveBy(diff.x(), diff.y());
break;
}
- if (m_selectedItem->type() == 3) {
+ if (m_selectedItem->type() == 3 && m_resizeMode != NoResize) {
QGraphicsRectItem *gi = (QGraphicsRectItem*)m_selectedItem;
gi->setRect(newrect);
}
QGraphicsScene::mouseMoveEvent(e);
return;
}
- QPointF diff = e->scenePos() - m_clickPoint;
- m_clickPoint = e->scenePos();
+ QPointF diff = e->scenePos() - m_sceneClickPoint;
+ m_sceneClickPoint = e->scenePos();
m_selectedItem->moveBy(diff.x(), diff.y());
}
emit itemMoved();
} else if (m_tool == TITLE_SELECT) {
-
QPointF p = e->scenePos();
p += QPoint(-2, -2);
- resizeMode = NoResize;
+ m_resizeMode = NoResize;
bool itemFound = false;
foreach(const QGraphicsItem* g, items(QRectF(p , QSizeF(4, 4)).toRect())) {
if ((g->type() == 13 || g->type() == 7) && g->zValue() > -1000) {
setCursor(Qt::OpenHandCursor);
break;
} else if (g->type() == 3 && g->zValue() > -1000) {
- QRectF r = g->boundingRect();
- r.translate(g->scenePos());
+ QRectF r = ((const QGraphicsRectItem*)g)->rect();
itemFound = true;
- if ((r.toRect().topLeft() - e->scenePos().toPoint()).manhattanLength() < 6 / zoom) {
- setCursor(QCursor(Qt::SizeFDiagCursor));
- } else if ((r.toRect().bottomLeft() - e->scenePos().toPoint()).manhattanLength() < 6 / zoom) {
- setCursor(QCursor(Qt::SizeBDiagCursor));
- } else if ((r.toRect().topRight() - e->scenePos().toPoint()).manhattanLength() < 6 / zoom) {
- setCursor(QCursor(Qt::SizeBDiagCursor));
- } else if ((r.toRect().bottomRight() - e->scenePos().toPoint()).manhattanLength() < 6 / zoom) {
- setCursor(QCursor(Qt::SizeFDiagCursor));
- } else if (qAbs(r.toRect().left() - e->scenePos().toPoint().x()) < 3 / zoom) {
- setCursor(Qt::SizeHorCursor);
- } else if (qAbs(r.toRect().right() - e->scenePos().toPoint().x()) < 3 / zoom) {
- setCursor(Qt::SizeHorCursor);
- } else if (qAbs(r.toRect().top() - e->scenePos().toPoint().y()) < 3 / zoom) {
- setCursor(Qt::SizeVerCursor);
- } else if (qAbs(r.toRect().bottom() - e->scenePos().toPoint().y()) < 3 / zoom) {
- setCursor(Qt::SizeVerCursor);
- } else setCursor(Qt::OpenHandCursor);
+ /*
+ * The vertices of the rectangle (check for matrix
+ * transformation); to be replaced by QTransform::map()?
+ */
+ QPointF itemOrigin = g->scenePos();
+ QTransform transform = g->transform();
+ 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());
+ 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());
+ 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());
+ 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());
+ // The borders (using the transformed coordinates)
+ QGraphicsLineItem borderTop(topLeft.x(), topLeft.y(), topRight.x(), topRight.y());
+ QGraphicsLineItem borderRight(topRight.x(), topRight.y(), bottomRight.x(), bottomRight.y());
+ QGraphicsLineItem borderBottom(bottomRight.x(), bottomRight.y(), bottomLeft.x(), bottomLeft.y());
+ QGraphicsLineItem borderLeft(bottomLeft.x(), bottomLeft.y(), topLeft.x(), topLeft.y());
+ // The area interested by the mouse pointer
+ QPainterPath mouseArea;
+ mouseArea.addRect(e->scenePos().toPoint().x() - 4 / m_zoom, e->scenePos().toPoint().y() - 4 / m_zoom, 8 / m_zoom, 8 / m_zoom);
+ // Check for collisions between the mouse and the borders
+ if ((borderLeft.collidesWithPath(mouseArea) && borderTop.collidesWithPath(mouseArea)) || (borderRight.collidesWithPath(mouseArea) && borderBottom.collidesWithPath(mouseArea)))
+ setResizeCursor(borderLeft.line().angle() - 45);
+ else if ((borderLeft.collidesWithPath(mouseArea) && borderBottom.collidesWithPath(mouseArea)) || (borderRight.collidesWithPath(mouseArea) && borderTop.collidesWithPath(mouseArea)))
+ setResizeCursor(borderLeft.line().angle() + 45);
+ else if (borderLeft.collidesWithPath(mouseArea) || borderRight.collidesWithPath(mouseArea))
+ setResizeCursor(borderLeft.line().angle());
+ else if (borderTop.collidesWithPath(mouseArea) || borderBottom.collidesWithPath(mouseArea))
+ setResizeCursor(borderTop.line().angle());
+ else
+ setCursor(Qt::OpenHandCursor);
break;
}
if (!itemFound) setCursor(Qt::ArrowCursor);
}
QGraphicsScene::mouseMoveEvent(e);
} else if (m_tool == TITLE_RECTANGLE && e->buttons() & Qt::LeftButton) {
- if (m_selectedItem == NULL && (m_clickPoint.toPoint() - e->scenePos().toPoint()).manhattanLength() >= QApplication::startDragDistance()) {
+ if (m_selectedItem == NULL && (m_clickPoint - e->screenPos()).manhattanLength() >= QApplication::startDragDistance()) {
// create new rect item
- m_selectedItem = addRect(0, 0, e->scenePos().x() - m_clickPoint.x(), e->scenePos().y() - m_clickPoint.y());
+ m_selectedItem = addRect(0, 0, e->scenePos().x() - m_sceneClickPoint.x(), e->scenePos().y() - m_sceneClickPoint.y());
emit newRect((QGraphicsRectItem *) m_selectedItem);
m_selectedItem->setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
- m_selectedItem->setPos(m_clickPoint);
- resizeMode = BottomRight;
+ m_selectedItem->setPos(m_sceneClickPoint);
+ m_resizeMode = BottomRight;
QGraphicsScene::mouseMoveEvent(e);
}
}
}
-void GraphicsSceneRectMove::wheelEvent(QGraphicsSceneWheelEvent * wheelEvent) {
+void GraphicsSceneRectMove::wheelEvent(QGraphicsSceneWheelEvent * wheelEvent)
+{
QList<QGraphicsView*> viewlist = views();
//kDebug() << wheelEvent->delta() << " " << zoom;
- double scale = 1.0;
if (viewlist.size() > 0) {
if (wheelEvent->delta() < 0) emit sceneZoom(true);
else emit sceneZoom(false);
}
}
-void GraphicsSceneRectMove::setScale(double s) {
- if (zoom < 1.0 / 7.0 && s < 1.0) return;
- else if (zoom > 10.0 / 7.9 && s > 1.0) return;
+void GraphicsSceneRectMove::setScale(double s)
+{
+ if (m_zoom < 1.0 / 7.0 && s < 1.0) return;
+ else if (m_zoom > 10.0 / 7.9 && s > 1.0) return;
QList<QGraphicsView*> viewlist = views();
if (viewlist.size() > 0) {
viewlist[0]->scale(s, s);
- zoom = zoom * s;
+ m_zoom = m_zoom * s;
}
//kDebug()<<"////////// ZOOM: "<<zoom;
}
-void GraphicsSceneRectMove::setZoom(double s) {
+void GraphicsSceneRectMove::setZoom(double s)
+{
QList<QGraphicsView*> viewlist = views();
if (viewlist.size() > 0) {
viewlist[0]->resetTransform();
viewlist[0]->scale(s, s);
- zoom = s;
+ m_zoom = s;
}
//kDebug()<<"////////// ZOOM: "<<zoom;
}
-void GraphicsSceneRectMove::setCursor(QCursor c) {
- QList<QGraphicsView*> l = views();
+void GraphicsSceneRectMove::setCursor(QCursor c)
+{
+ const QList<QGraphicsView*> l = views();
foreach(QGraphicsView* v, l) {
v->setCursor(c);
}
}
+
+void GraphicsSceneRectMove::setResizeCursor(qreal angle)
+{
+ // % is not working...
+ while (angle < 0)
+ angle += 180;
+ while (angle >= 180)
+ angle -= 180;
+ if (angle > 157.5 || angle <= 22.5)
+ setCursor(Qt::SizeVerCursor);
+ else if (angle > 22.5 && angle <= 67.5)
+ setCursor(Qt::SizeFDiagCursor);
+ else if (angle > 67.5 && angle <= 112.5)
+ setCursor(Qt::SizeHorCursor);
+ else if (angle > 112.5 && angle <= 157.5)
+ setCursor(Qt::SizeBDiagCursor);
+}