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/*
For general Scribus (>=1.3.2) copyright and licensing information please refer
to the COPYING file provided with the program. Following this notice may exist
a copyright and/or license notice that predates the release of Scribus 1.3.2
for which a new license (GPL+exception) is in place.
*/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#include "canvasgesture_linemove.h"
//#include <QDebug>
#include <QMouseEvent>
#include <QPainter>
#include <QPen>
#include "canvas.h"
#include "pageitem_line.h"
#include "scribusdoc.h"
#include "scribusview.h"
#include "selection.h"
#include "util_math.h"
void LineMove::clear()
{
m_haveLineItem = false;
}
void LineMove::prepare(QPointF start, QPointF end)
{
m_haveLineItem = false;
setStartPoint(start);
setStartPoint(end);
}
void LineMove::prepare(PageItem_Line* line, bool useOriginAsEndpoint)
{
m_haveLineItem = (line != NULL);
if (!m_haveLineItem)
return;
m_useOriginAsEndpoint = useOriginAsEndpoint;
m_line = line;
setStartPoint(QPointF(m_line->xPos(), m_line->yPos()));
setEndPoint(QPointF(m_line->xPos() + m_line->width(), m_line->yPos()));
setRotation(m_line->rotation());
if (m_useOriginAsEndpoint)
{
QPointF tmp = startPoint();
setStartPoint(endPoint());
setEndPoint(tmp);
}
}
double LineMove::rotation() const
{
double rot = xy2Deg(m_bounds.width(), m_bounds.height());
if (rot < 0.0)
return 360 + rot;
else
return rot;
}
void LineMove::setRotation(double rot)
{
m_bounds.setSize(length() * QSizeF(cosd(rot), sind(rot)));
}
double LineMove::length() const
{
return qMax(0.01, distance(m_bounds.width(), m_bounds.height()));
}
void LineMove::setStartPoint(QPointF p)
{
m_bounds.setTopLeft(p);
}
void LineMove::setEndPoint(QPointF p)
{
m_bounds.setBottomRight(p);
}
void LineMove::activate(bool flag)
{
// qDebug() << "LineMove::activate" << flag << m_bounds;
}
void LineMove::deactivate(bool flag)
{
// qDebug() << "LineMove::deactivate" << flag;
m_haveLineItem = false;
}
void LineMove::drawControls(QPainter* p)
{
p->save();
p->scale(m_canvas->scale(), m_canvas->scale());
p->translate(-m_doc->minCanvasCoordinate.x(), -m_doc->minCanvasCoordinate.y());
p->setBrush(Qt::NoBrush);
p->setPen(QPen(Qt::black, 1.0 / m_canvas->scale(), Qt::DotLine, Qt::FlatCap, Qt::MiterJoin));
p->drawLine(m_bounds.topLeft(), m_bounds.bottomRight());
p->restore();
}
void LineMove::mousePressEvent(QMouseEvent *m)
{
PageItem_Line* line = m_doc->m_Selection->count() == 1 ? m_doc->m_Selection->itemAt(0)->asLine() : NULL;
if (line)
{
bool hitsOrigin = m_canvas->hitsCanvasPoint(m->globalPos(), line->xyPos());
prepare(line, hitsOrigin);
// now we also know the line's endpoint:
bool hitsEnd = m_canvas->hitsCanvasPoint(m->globalPos(), endPoint());
m_haveLineItem = hitsOrigin || hitsEnd;
}
else
{
FPoint point = m_canvas->globalToCanvas(m->globalPos());
setStartPoint(QPointF(point.x(), point.y()));
setEndPoint(QPointF(point.x(), point.y()));
m_haveLineItem = false;
}
if (m_haveLineItem)
{
adjustBounds(m, false);
m_initialBounds = m_bounds;
m->accept();
}
}
void LineMove::mouseMoveEvent(QMouseEvent *m)
{
adjustBounds(m);
if (m_haveLineItem)
{
doResize();
double angle = rotation();
if (angle > 0)
angle = 360 - angle;
m_canvas->displaySizeHUD(m->globalPos(), length(), fabs(angle), true);
}
m->accept();
m_canvas->repaint();
}
void LineMove::mouseReleaseEvent(QMouseEvent *m)
{
adjustBounds(m);
if (m_haveLineItem)
{
if (m_bounds != m_initialBounds)
doResize();
m_doc->setRedrawBounding(m_line);
m_view->resetMousePressed();
m_line->checkChanges();
m_line->update();
}
m->accept();
m_canvas->update();
// qDebug() << "LineMove::mouseRelease" << m_line->xPos() << "," << m_line->yPos() << "@" << m_line->rotation() << m_line->width() << "x" << m_line->height();
m_view->stopGesture();
}
void LineMove::doResize()
{
if (m_useOriginAsEndpoint)
{
m_line->setXYPos(m_bounds.right(), m_bounds.bottom());
double rot = rotation();
m_line->setRotation(rot < 180? rot + 180 : rot - 180);
}
else
{
m_line->setXYPos(m_bounds.x(), m_bounds.y());
m_line->setRotation(rotation());
}
m_line->setWidth(length());
m_line->setHeight(1.0);
m_line->updateClip();
// qDebug() << "LineMove::doresize" << m_line->xPos() << "," << m_line->yPos() << "@" << m_line->rotation() << m_line->width() << "x" << m_line->height();
}
void LineMove::adjustBounds(QMouseEvent *m, bool updateCanvas)
{
FPoint mousePointDoc = m_canvas->globalToCanvas(m->globalPos());
bool constrainRatio = ((m->modifiers() & Qt::ControlModifier) != Qt::NoModifier);
double newX = mousePointDoc.x();
double newY = mousePointDoc.y();
if (m_doc->useRaster)
{
newX = qRound(newX / m_doc->guidesSettings.minorGrid) * m_doc->guidesSettings.minorGrid;
newY = qRound(newY / m_doc->guidesSettings.minorGrid) * m_doc->guidesSettings.minorGrid;
}
//<<#8099
FPoint np2 = m_doc->ApplyGridF(FPoint(newX, newY));
double nx = np2.x();
double ny = np2.y();
m_doc->ApplyGuides(&nx, &ny);
newX = nx;
newY = ny;
//>>#8099
m_bounds.setBottomRight(QPointF(newX, newY));
//Constrain rotation angle, when the mouse is being dragged around for a new line
if (constrainRatio)
{
double newRot = rotation();
newRot = constrainAngle(newRot, m_doc->toolSettings.constrain);
setRotation(newRot);
}
if (updateCanvas)
{
m_view->updateCanvas(m_bounds.normalized().adjusted(-10, -10, 20, 20));
}
}
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