git.sesse.net Git - kdenlive/blob - src/onmonitoritems/onmonitorcornersitem.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2010 by Till Theato (root@ttill.de)                     *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
  18  ***************************************************************************/
  19
  20 #include "onmonitorcornersitem.h"
  21 #include "kdenlivesettings.h"
  22
  23 #include <QGraphicsSceneMouseEvent>
  24 #include <QPainter>
  25 #include <QStyleOptionGraphicsItem>
  26 #include <QCursor>
  27
  28 OnMonitorCornersItem::OnMonitorCornersItem(MonitorScene* scene, QGraphicsItem* parent) :
  29         AbstractOnMonitorItem(scene),
  30         QGraphicsPolygonItem(parent)
  31 {
  32     setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
  33
  34     QPen framepen(Qt::SolidLine);
  35     framepen.setColor(Qt::yellow);
  36     setPen(framepen);
  37     setBrush(Qt::transparent);
  38 }
  39
  40 cornersActions OnMonitorCornersItem::getMode(QPoint pos)
  41 {
  42     /*pos = mapFromScene(pos).toPoint();
  43     // Item mapped coordinates
  44     QPolygon pol(rect().normalized().toRect());
  45
  46     QPainterPath top(pol.point(0));
  47     top.lineTo(pol.point(1));
  48     QPainterPath bottom(pol.point(2));
  49     bottom.lineTo(pol.point(3));
  50     QPainterPath left(pol.point(0));
  51     left.lineTo(pol.point(3));
  52     QPainterPath right(pol.point(1));
  53     right.lineTo(pol.point(2));
  54
  55     QPainterPath mouseArea;
  56     mouseArea.addRect(pos.x() - 4, pos.y() - 4, 8, 8);
  57
  58     // Check for collisions between the mouse and the borders
  59     if (mouseArea.contains(pol.point(0)))
  60         return ResizeTopLeft;
  61     else if (mouseArea.contains(pol.point(2)))
  62         return ResizeBottomRight;
  63     else if (mouseArea.contains(pol.point(1)))
  64         return ResizeTopRight;
  65     else if (mouseArea.contains(pol.point(3)))
  66         return ResizeBottomLeft;
  67     else if (top.intersects(mouseArea))
  68         return ResizeTop;
  69     else if (bottom.intersects(mouseArea))
  70         return ResizeBottom;
  71     else if (right.intersects(mouseArea))
  72         return ResizeRight;
  73     else if (left.intersects(mouseArea))
  74         return ResizeLeft;
  75     else if (rect().normalized().contains(pos))
  76         return Move;
  77     else
  78         return NoAction;*/
  79     return NoAction;
  80 }
  81
  82 void OnMonitorCornersItem::slotMousePressed(QGraphicsSceneMouseEvent* event)
  83 {
  84     event->accept();
  85
  86     if (!isEnabled())
  87         return;
  88
  89     m_clickPoint = event->scenePos();
  90     m_mode = getMode(m_clickPoint.toPoint());
  91 }
  92
  93 void OnMonitorCornersItem::slotMouseMoved(QGraphicsSceneMouseEvent* event)
  94 {
  95     event->accept();
  96
  97     if (!isEnabled()) {
  98         emit requestCursor(QCursor(Qt::ArrowCursor));
  99         return;
 100     }
 101
 102     /*if (event->buttons() != Qt::NoButton && (event->screenPos() - m_screenClickPoint).manhattanLength() < QApplication::startDragDistance()) {
 103      *   event->accept();
 104      *   return;
 105     }*/
 106
 107     QPointF mousePos = event->scenePos();
 108
 109     if (event->buttons() & Qt::LeftButton) {
 110         m_clickPoint = mousePos;
 111         switch (m_mode) {
 112         case Corner1:
 113
 114             break;
 115         case Corner2:
 116
 117             break;
 118         case Corner3:
 119
 120             break;
 121         case Corner4:
 122
 123             break;
 124         default:
 125             break;
 126         }
 127     } else {
 128         switch (getMode(event->scenePos().toPoint())) {
 129         case NoAction:
 130             emit requestCursor(QCursor(Qt::ArrowCursor));
 131             break;
 132         default:
 133             emit requestCursor(QCursor(Qt::OpenHandCursor));
 134             break;
 135         }
 136     }
 137     if (m_modified && KdenliveSettings::monitorscene_directupdate()) {
 138         emit actionFinished();
 139         m_modified = false;
 140     }
 141 }
 142
 143 /*void OnMonitorRectItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
 144 {
 145     Q_UNUSED(widget);
 146
 147     painter->setPen(pen());
 148     painter->drawRect(option->rect);
 149
 150     if (isEnabled()) {
 151         double handleSize = 6 / painter->matrix().m11();
 152         double halfHandleSize = handleSize / 2;
 153         painter->fillRect(-halfHandleSize, -halfHandleSize, handleSize, handleSize, QColor(Qt::yellow));
 154         painter->fillRect(option->rect.width() - halfHandleSize, -halfHandleSize, handleSize, handleSize, QColor(Qt::yellow));
 155         painter->fillRect(option->rect.width() - halfHandleSize, option->rect.height() - halfHandleSize, handleSize, handleSize, QColor(Qt::yellow));
 156         painter->fillRect(-halfHandleSize, option->rect.height() - halfHandleSize, handleSize, handleSize, QColor(Qt::yellow));
 157     }
 158 }*/
 159
 160 #include "onmonitorcornersitem.moc"