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/*
* This file is part of the PulseView project.
*
* Copyright (C) 2013 Joel Holdsworth <joel@airwebreathe.org.uk>
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "colorbutton.hpp"
#include <cassert>
#include <QApplication>
#include <QColorDialog>
#include <QPainter>
namespace pv {
namespace widgets {
const int ColorButton::SwatchMargin = 7;
ColorButton::ColorButton(QWidget *parent) :
QPushButton("", parent),
popup_(nullptr)
{
connect(this, SIGNAL(clicked(bool)), this, SLOT(on_clicked(bool)));
}
ColorButton::ColorButton(int rows, int cols, QWidget *parent) :
QPushButton("", parent),
popup_(new ColorPopup(rows, cols, this))
{
connect(this, SIGNAL(clicked(bool)), this, SLOT(on_clicked(bool)));
connect(popup_, SIGNAL(selected(int, int)),
this, SLOT(on_selected(int, int)));
}
ColorPopup* ColorButton::popup()
{
return popup_;
}
const QColor& ColorButton::color() const
{
return cur_color_;
}
void ColorButton::set_color(QColor color)
{
cur_color_ = color;
if (popup_) {
const unsigned int rows = popup_->well_array().numRows();
const unsigned int cols = popup_->well_array().numCols();
for (unsigned int r = 0; r < rows; r++)
for (unsigned int c = 0; c < cols; c++)
if (popup_->well_array().cellBrush(r, c).color() == color) {
popup_->well_array().setSelected(r, c);
popup_->well_array().setCurrent(r, c);
return;
}
}
}
void ColorButton::set_palette(const QColor *const palette)
{
assert(palette);
assert(popup_);
const unsigned int rows = popup_->well_array().numRows();
const unsigned int cols = popup_->well_array().numCols();
for (unsigned int r = 0; r < rows; r++)
for (unsigned int c = 0; c < cols; c++)
popup_->well_array().setCellBrush(r, c, QBrush(palette[r * cols + c]));
}
void ColorButton::on_clicked(bool)
{
if (popup_) {
popup_->set_position(mapToGlobal(rect().center()), Popup::Bottom);
popup_->show();
} else {
QColorDialog dlg(this);
dlg.setOption(QColorDialog::ShowAlphaChannel);
dlg.setOption(QColorDialog::DontUseNativeDialog);
connect(&dlg, SIGNAL(colorSelected(const QColor)),
this, SLOT(on_color_selected(const QColor)));
dlg.setCurrentColor(cur_color_);
dlg.exec();
}
}
void ColorButton::on_selected(int row, int col)
{
assert(popup_);
cur_color_ = popup_->well_array().cellBrush(row, col).color();
selected(cur_color_);
}
void ColorButton::on_color_selected(const QColor& color)
{
cur_color_ = color;
selected(cur_color_);
}
void ColorButton::paintEvent(QPaintEvent *event)
{
QPushButton::paintEvent(event);
QPainter p(this);
const QRect r = rect().adjusted(SwatchMargin, SwatchMargin,
-SwatchMargin, -SwatchMargin);
p.setPen(QApplication::palette().color(QPalette::Dark));
p.setBrush(QBrush(cur_color_));
p.drawRect(r);
}
} // namespace widgets
} // namespace pv
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