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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 "canvasmode_measurements.h"
#include <QApplication>
#include <QPainter>
#include <QPen>
#include "canvas.h"
#include "measurements.h"
#include "scribusdoc.h"
#include "scribusview.h"
#include "util_math.h"
MeasurementsMode::MeasurementsMode(ScribusView* view) : CanvasMode(view), m_start(0,0), m_current(0,0)
{
m_palette = new Measurements(m_view);
m_palette->startup();
m_palette->hide();
connect( m_palette, SIGNAL(paletteShown(bool)), this, SLOT(setActive(bool)));
m_active = false;
m_startDoc = FPoint(0,0);
m_currentDoc = FPoint(0,0);
}
void MeasurementsMode::enterEvent(QEvent *)
{
qApp->changeOverrideCursor(QCursor(Qt::CrossCursor));
}
void MeasurementsMode::leaveEvent(QEvent *)
{
qApp->changeOverrideCursor(QCursor(Qt::ArrowCursor));
}
void MeasurementsMode::setActive(bool active)
{
if (!active)
m_view->requestMode(modeNormal);
}
void MeasurementsMode::activate(bool)
{
m_palette->show();
}
void MeasurementsMode::deactivate(bool)
{
m_palette->hide();
}
void MeasurementsMode::drawControls(QPainter* p)
{
p->save();
p->setRenderHint(QPainter::Antialiasing);
p->setBrush(Qt::NoBrush);
p->setPen(QPen(Qt::black, 1.0, Qt::DotLine, Qt::FlatCap, Qt::MiterJoin));
p->drawLine(m_start, m_current);
p->restore();
}
void MeasurementsMode::mouseReleaseEvent(QMouseEvent *m)
{
if (m_active)
{
m->accept();
adjustPoint(m->globalPos());
}
m_active = false;
showValues();
}
void MeasurementsMode::mouseMoveEvent(QMouseEvent *m)
{
if (m_active)
{
m->accept();
adjustPoint(m->globalPos());
showValues();
}
else
{
FPoint mousePointDoc = m_canvas->globalToCanvas(m->globalPos());
m_canvas->displayCorrectedXYHUD(m->globalPos(), mousePointDoc.x(), mousePointDoc.y());
}
}
void MeasurementsMode::mousePressEvent(QMouseEvent *m)
{
m->accept();
m_active = true;
adjustPoint(m->globalPos());
m_start = m_current;
m_startDoc = m_currentDoc;
showValues();
}
void MeasurementsMode::adjustPoint(QPoint globalPoint)
{
QPoint point = globalPoint - (m_canvas->mapToParent(QPoint(0, 0)) + m_canvas->parentWidget()->mapToGlobal(QPoint(0, 0)));
m_canvas->update(QRect(m_start, m_current).normalized().adjusted(-1,-1,1,1));
m_current = point;
m_currentDoc = m_canvas->localToCanvas(m_current) - FPoint(m_doc->currentPage()->xOffset(),m_doc->currentPage()->yOffset());
}
void MeasurementsMode::showValues()
{
double dx = m_currentDoc.x() - m_startDoc.x();
double dy = m_currentDoc.y() - m_startDoc.y();
m_palette->setValues(m_startDoc.x(), m_startDoc.y(), m_currentDoc.x(), m_currentDoc.y(), -xy2Deg(dx, dy), sqrt(dx*dx + dy*dy));
m_canvas->update(QRect(m_start, m_current).normalized());
}
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