mirror of
https://invent.kde.org/graphics/okular
synced 2024-11-05 18:34:53 +00:00
110 lines
3.7 KiB
C++
110 lines
3.7 KiB
C++
/***************************************************************************
|
|
* Copyright (C) 2005 by Enrico Ros <eros.kde@email.it> *
|
|
* *
|
|
* 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. *
|
|
***************************************************************************/
|
|
|
|
#ifndef _OKULAR_ANNOTATIONTOOLS_H_
|
|
#define _OKULAR_ANNOTATIONTOOLS_H_
|
|
|
|
#include <qdom.h>
|
|
#include <qlinkedlist.h>
|
|
#include <qpainter.h>
|
|
#include <qpen.h>
|
|
#include <qrect.h>
|
|
|
|
#include "core/area.h"
|
|
|
|
class QMouseEvent;
|
|
class QTabletEvent;
|
|
class PageViewItem;
|
|
namespace Okular {
|
|
class Annotation;
|
|
class Page;
|
|
}
|
|
|
|
/**
|
|
* @short Engine: filter events to distill Annotations.
|
|
*/
|
|
class AnnotatorEngine
|
|
{
|
|
public:
|
|
AnnotatorEngine( const QDomElement & engineElement );
|
|
virtual ~AnnotatorEngine();
|
|
|
|
// enum definitions
|
|
enum EventType { Press, Move, Release };
|
|
enum Button { None, Left, Right };
|
|
|
|
// perform operations
|
|
virtual QRect event( EventType type, Button button, double nX, double nY, double xScale, double yScale, const Okular::Page * page ) = 0;
|
|
virtual void paint( QPainter * painter, double xScale, double yScale, const QRect & clipRect ) = 0;
|
|
virtual QList< Okular::Annotation* > end() = 0;
|
|
|
|
// query creation state
|
|
//PageViewItem * editingItem() const { return m_lockedItem; }
|
|
bool creationCompleted() const { return m_creationCompleted; }
|
|
|
|
void setItem( PageViewItem * item ) { m_item = item; }
|
|
|
|
static void decodeEvent( const QMouseEvent * mouseEvent, EventType * eventType, Button * button );
|
|
static void decodeEvent( const QTabletEvent * tabletEvent, EventType * eventType, Button * button );
|
|
|
|
virtual QCursor cursor() const;
|
|
|
|
protected:
|
|
PageViewItem * item() { return m_item; }
|
|
|
|
// common engine attributes (the element includes annotation desc)
|
|
QDomElement m_engineElement;
|
|
QDomElement m_annotElement;
|
|
QColor m_engineColor;
|
|
// other vars (remove this!)
|
|
bool m_creationCompleted;
|
|
|
|
private:
|
|
PageViewItem * m_item;
|
|
};
|
|
|
|
class SmoothPath
|
|
{
|
|
public:
|
|
SmoothPath( const QLinkedList<Okular::NormalizedPoint> &points, const QPen &pen, qreal opacity = 1.0, QPainter::CompositionMode compositionMode = QPainter::CompositionMode_SourceOver );
|
|
void paint( QPainter * painter, double xScale, double yScale ) const;
|
|
|
|
private:
|
|
const QLinkedList<Okular::NormalizedPoint> points;
|
|
const QPen pen;
|
|
const qreal opacity;
|
|
const QPainter::CompositionMode compositionMode;
|
|
};
|
|
|
|
/** @short SmoothPathEngine */
|
|
class SmoothPathEngine
|
|
: public AnnotatorEngine
|
|
{
|
|
public:
|
|
SmoothPathEngine( const QDomElement & engineElement );
|
|
|
|
QRect event( EventType type, Button button, double nX, double nY, double xScale, double yScale, const Okular::Page * /*page*/ ) override;
|
|
|
|
void paint( QPainter * painter, double xScale, double yScale, const QRect & /*clipRect*/ ) override;
|
|
|
|
// These are two alternative ways to get the resulting path. Don't call them both!
|
|
QList< Okular::Annotation* > end() override;
|
|
SmoothPath endSmoothPath();
|
|
|
|
private:
|
|
// data
|
|
QLinkedList<Okular::NormalizedPoint> points;
|
|
Okular::NormalizedRect totalRect;
|
|
Okular::NormalizedPoint lastPoint;
|
|
QPainter::CompositionMode compositionMode;
|
|
};
|
|
|
|
#endif
|
|
|
|
/* kate: replace-tabs on; indent-width 4; */
|