/usr/include/CGAL/Qt/GraphicsViewIsoRectangleInput.h is in libcgal-qt5-dev 4.7-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 | // Copyright (c) 2008 GeometryFactory Sarl (France).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org).
// 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 3 of the License, or (at your option) any later version.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL$
// $Id$
//
//
// Author(s) : Andreas Fabri <Andreas.Fabri@geometryfactory.com>
// Laurent Rineau <Laurent.Rineau@geometryfactory.com>
#ifndef CGAL_QT_GRAPHICS_VIEW_ISO_RECTANGLE_INPUT_H
#define CGAL_QT_GRAPHICS_VIEW_ISO_RECTANGLE_INPUT_H
#include <QGraphicsView>
#include <QRectF>
#include <QPointF>
#include <QGraphicsItem>
#include <QGraphicsRectItem>
#include <QGraphicsScene>
#include <QGraphicsSceneMouseEvent>
#include <QPainter>
#include <QStyleOption>
#include <CGAL/Qt/Converter.h>
#include <CGAL/Qt/GraphicsViewInput.h>
#include <CGAL/array.h>
namespace CGAL {
namespace Qt {
template <typename K>
class GraphicsViewIsoRectangleInput : public GraphicsViewInput
{
public:
GraphicsViewIsoRectangleInput(QObject *parent, QGraphicsScene* s);
~GraphicsViewIsoRectangleInput();
protected:
virtual void mousePressEvent(QGraphicsSceneMouseEvent *event);
virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
virtual void keyPressEvent(QKeyEvent *event);
bool eventFilter(QObject *obj, QEvent *event);
private:
typedef typename K::Point_2 Point_2;
QPointF qp, qq, qr;
Point_2 p, q, r;
QGraphicsRectItem *rectItem;
QPointF rect_first_point;
QGraphicsScene *scene_;
Converter<K> convert;
};
template <typename K>
GraphicsViewIsoRectangleInput<K>::GraphicsViewIsoRectangleInput(QObject *parent, QGraphicsScene* s)
: GraphicsViewInput(parent), rectItem(new QGraphicsRectItem), scene_(s)
{
rectItem->setBrush(QBrush());
scene_->addItem(rectItem);
rectItem->hide();
rectItem->setZValue(10000);
}
template <typename K>
GraphicsViewIsoRectangleInput<K>::~GraphicsViewIsoRectangleInput()
{
delete rectItem;
}
template <typename K>
void
GraphicsViewIsoRectangleInput<K>::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
if(event->modifiers() & ::Qt::ShiftModifier){
return;
}
if(event->button() == ::Qt::LeftButton) {
if(rectItem->isVisible()) {
// we have clicked twice
Q_EMIT generate(CGAL::make_object(convert(rectItem->rect())));
rectItem->hide();
} else {
// we enter a first point
rect_first_point = event->scenePos();
rectItem->setRect(QRectF(rect_first_point, rect_first_point));
rectItem->show();
}
}
}
template <typename K>
void
GraphicsViewIsoRectangleInput<K>::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
{
// todo: only do this if no modifiers are pressed at the same time
if(rectItem->isVisible()) {
rectItem->setRect(QRectF(rect_first_point,
event->scenePos()));
}
}
template <typename K>
void
GraphicsViewIsoRectangleInput<K>::keyPressEvent ( QKeyEvent * event )
{
}
template <typename K>
bool
GraphicsViewIsoRectangleInput<K>::eventFilter(QObject *obj, QEvent *event)
{
if (event->type() == QEvent::GraphicsSceneMousePress) {
QGraphicsSceneMouseEvent *mouseEvent = static_cast<QGraphicsSceneMouseEvent *>(event);
mousePressEvent(mouseEvent);
return true;
} else if (event->type() == QEvent::GraphicsSceneMouseMove) {
QGraphicsSceneMouseEvent *mouseEvent = static_cast<QGraphicsSceneMouseEvent *>(event);
mouseMoveEvent(mouseEvent);
return true;
} else if (event->type() == QEvent::KeyPress) {
QKeyEvent *keyEvent = static_cast<QKeyEvent *>(event);
keyPressEvent(keyEvent);
return true;
} else{
// standard event processing
return QObject::eventFilter(obj, event);
}
}
} // namespace Qt
} // namespace CGAL
#endif // CGAL_QT_GRAPHICS_VIEW_ISO_RECTANGLE_INPUT_H
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