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/***************************************************************************
* SelectionBorderItem.cpp - selection border within a SignalView
* -------------------
* begin : Sat Mar 11 2017
* copyright : (C) 2017 by Thomas Eschenbacher
* email : Thomas.Eschenbacher@gmx.de
***************************************************************************/
/***************************************************************************
* *
* 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 "libkwave/SignalManager.h"
#include "libkwave/String.h"
#include "libkwave/Utils.h"
#include "libgui/SelectionBorderItem.h"
#include "libgui/SignalView.h"
//***************************************************************************
Kwave::SelectionBorderItem::SelectionBorderItem(
Kwave::SignalView &view,
Kwave::SignalManager &signal_manager,
sample_index_t pos
)
:Kwave::ViewItem(view, signal_manager),
m_selection()
{
m_selection.set(
signal_manager.selection().first(),
signal_manager.selection().last()
);
m_selection.grep(pos);
}
//***************************************************************************
Kwave::SelectionBorderItem::~SelectionBorderItem()
{
}
//***************************************************************************
Kwave::ViewItem::Flags Kwave::SelectionBorderItem::flags() const
{
return Kwave::ViewItem::CanGrabAndMove;
}
//***************************************************************************
QString Kwave::SelectionBorderItem::toolTip(sample_index_t &ofs)
{
sample_index_t first = m_selection.left();
sample_index_t last = m_selection.right();
if (first == last) return QString(); // empty selection
sample_index_t d_left = (first < ofs) ? (ofs - first) : (first - ofs);
sample_index_t d_right = (last < ofs) ? (ofs - last) : (last - ofs);
QString which;
if (d_left <= d_right) {
which = i18n("Selection, left border");
ofs = first;
} else {
which = i18n("Selection, right border");
ofs = last;
}
QString hms = Kwave::ms2hms(m_view.samples2ms(ofs));
return _("%1\n%2\n%3").arg(which).arg(ofs).arg(hms);
}
//***************************************************************************
QCursor Kwave::SelectionBorderItem::mouseCursor() const
{
return Qt::SizeHorCursor;
}
//***************************************************************************
void Kwave::SelectionBorderItem::moveTo(const QPoint &mouse_pos)
{
const sample_index_t new_pos = m_view.offset() +
m_view.pixels2samples(mouse_pos.x());
m_selection.update(new_pos);
m_signal_manager.selectRange(m_selection.left(), m_selection.length());
}
//***************************************************************************
//***************************************************************************
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