148 lines
3.5 KiB
C++
148 lines
3.5 KiB
C++
/*
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Copyright 2016 - 2017 Benjamin Vedder benjamin@vedder.se
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This file is part of VESC Tool.
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VESC Tool is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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VESC Tool is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "displaypercentage.h"
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#include <QPainter>
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#include <QPaintEvent>
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#include <QFont>
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#include <cmath>
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DisplayPercentage::DisplayPercentage(QWidget *parent) : QWidget(parent)
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{
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mText = "";
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mIsDual = false;
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mValue = 0.0;
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}
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QString DisplayPercentage::text() const
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{
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return mText;
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}
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void DisplayPercentage::setText(const QString &text)
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{
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mText = text;
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update();
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}
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bool DisplayPercentage::isDual() const
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{
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return mIsDual;
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}
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void DisplayPercentage::setDual(bool hasNegative)
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{
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mIsDual = hasNegative;
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update();
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}
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double DisplayPercentage::value() const
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{
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return mValue;
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}
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void DisplayPercentage::setValue(double value)
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{
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mValue = value;
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update();
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}
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void DisplayPercentage::paintEvent(QPaintEvent *event)
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{
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QPainter painter(this);
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painter.setRenderHint(QPainter::Antialiasing);
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QColor c_bg = Qt::black;
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QColor c_hl = Qt::darkGreen;
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QColor c_vl = Qt::darkRed;
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QColor c_neg = Qt::red;
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QColor c_pos = Qt::green;
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QColor c_text = Qt::white;
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if (!isEnabled()) {
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int c = 80;
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c_bg = QColor(c, c, c);
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c = 120;
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c_hl = QColor(c, c, c);
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c = 120;
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c_vl = QColor(c, c, c);
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c = 120;
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c_neg = QColor(c, c, c);
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c = 180;
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c_pos = QColor(c, c, c);
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c = 180;
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c_text = QColor(c, c, c);
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}
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int w = width();
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int h = height();
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painter.fillRect(event->rect(), Qt::transparent);
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painter.setBrush(c_bg);
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painter.drawRoundedRect(event->rect(), 5.0, 5.0);
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if (mIsDual) {
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painter.fillRect(w / 2 - 1, 0, 2, h / 3, c_vl);
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}
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painter.fillRect(0, h / 3 - 1, w, 2, c_hl);
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QPen pen;
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QFont font;
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// Text
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pen.setColor(c_text);
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font.setFamily("Monospace");
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font.setBold(true);
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font.setPixelSize(2 * h / 3 - 2);
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painter.setPen(pen);
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painter.setFont(font);
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painter.drawText(QRect(0, h / 3 + 1, w - 2, 2 * h / 3 - 1), Qt::AlignCenter, mText);
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double valh = (double)h / 3.0 - 2.0;
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if (mIsDual) {
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double xsp = (double)w / 2.0 + 1.0;
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double xsm = (double)w / 2.0 - 1.0;
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double valw = (mValue / 100.0) * ((double)w / 2.0 - 2.0);
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if (fabs(valw) > 0.1) {
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if (valw >= 0.0) {
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painter.setBrush(c_pos);
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painter.drawRect(xsp, 0, valw, valh);
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} else {
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painter.setBrush(c_neg);
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painter.drawRect(xsm + valw, 1, -valw, valh);
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}
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}
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} else {
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if (mValue >= 0.0) {
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painter.setBrush(c_pos);
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painter.drawRect(0, 1, (w * mValue) / 100.0, valh);
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} else {
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painter.setBrush(c_neg);
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painter.drawRect(w + w * (mValue / 100.0), 1, w, valh);
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}
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}
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}
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