mirror of
https://github.com/f4exb/sdrangel.git
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677 lines
19 KiB
C++
677 lines
19 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2017 F4EXB //
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// written by Edouard Griffiths //
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// //
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// Same as ValueDial but handles optionally positive and negative numbers with //
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// sign display. //
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// //
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// This program 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 as version 3 of the License, or //
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// //
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// This program 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 V3 for more details. //
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// //
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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 <QPainter>
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#include <QMouseEvent>
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#include <QWheelEvent>
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#include <QKeyEvent>
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#include <QLocale>
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#include "gui/valuedialz.h"
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ValueDialZ::ValueDialZ(bool positiveOnly, QWidget* parent, ColorMapper colorMapper) :
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QWidget(parent),
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m_positiveOnly(positiveOnly),
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m_animationState(0),
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m_colorMapper(colorMapper)
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{
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setAutoFillBackground(false);
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setAttribute(Qt::WA_OpaquePaintEvent, true);
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setAttribute(Qt::WA_NoSystemBackground, true);
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setMouseTracking(true);
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setFocusPolicy(Qt::StrongFocus);
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m_background.setStart(0, 0);
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m_background.setFinalStop(0, 1);
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m_background.setCoordinateMode(QGradient::ObjectBoundingMode);
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ColorMapper::colormap::const_iterator cmit = m_colorMapper.getDialBackgroundColorMap().begin();
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ColorMapper::colormap::const_iterator cmitEnd = m_colorMapper.getDialBackgroundColorMap().end();
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for (; cmit != cmitEnd; ++ cmit) {
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m_background.setColorAt(cmit->first, cmit->second);
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}
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m_value = 0;
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m_valueNew = 0;
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m_valueMin = m_positiveOnly ? 0 : -2200000;
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m_valueMax = 2200000;
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m_numDigits = 7;
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m_numDecimalPoints = m_numDigits / 3;
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m_cursor = -1;
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m_digitWidth = 0;
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m_digitHeight = 0;
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m_hightlightedDigit = -1;
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m_text = formatText(m_value);
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m_cursorState = false;
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const QLocale & cLocale = QLocale::c();
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m_groupSeparator = cLocale.groupSeparator();
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connect(&m_animationTimer, SIGNAL(timeout()), this, SLOT(animate()));
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connect(&m_blinkTimer, SIGNAL(timeout()), this, SLOT(blink()));
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}
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void ValueDialZ::setFont(const QFont& font)
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{
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QWidget::setFont(font);
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QFontMetrics fm(font);
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m_digitWidth = fm.width('0');
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m_digitHeight = fm.ascent();
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if(m_digitWidth < m_digitHeight)
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m_digitWidth = m_digitHeight;
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setFixedWidth((m_numDigits + m_numDecimalPoints + (m_positiveOnly ? 0 : 1)) * m_digitWidth + 2);
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setFixedHeight(m_digitHeight * 2 + 2);
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}
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void ValueDialZ::setBold(bool bold)
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{
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QFont f = font();
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f.setBold(bold);
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setFont(f);
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}
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void ValueDialZ::setColorMapper(ColorMapper colorMapper)
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{
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m_colorMapper = colorMapper;
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ColorMapper::colormap::const_iterator cmit = m_colorMapper.getDialBackgroundColorMap().begin();
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ColorMapper::colormap::const_iterator cmitEnd = m_colorMapper.getDialBackgroundColorMap().end();
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for (; cmit != cmitEnd; ++ cmit) {
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m_background.setColorAt(cmit->first, cmit->second);
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}
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}
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void ValueDialZ::setValue(qint64 value)
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{
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m_valueNew = value;
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if(m_valueNew < m_valueMin) {
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m_valueNew = m_valueMin;
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}
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else if(m_valueNew > m_valueMax) {
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m_valueNew = m_valueMax;
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}
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if(m_valueNew < m_value) {
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m_animationState = 1;
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} else if(m_valueNew > m_value) {
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m_animationState = -1;
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} else {
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return;
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}
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m_animationTimer.start(20);
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m_textNew = formatText(m_valueNew);
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}
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void ValueDialZ::setValueRange(bool positiveOnly, uint numDigits, qint64 min, qint64 max)
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{
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m_positiveOnly = positiveOnly;
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m_numDigits = numDigits;
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m_numDecimalPoints = m_numDigits < 3 ? 0 : (m_numDigits%3) == 0 ? (m_numDigits/3)-1 : m_numDigits/3;
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setFixedWidth((m_numDigits + m_numDecimalPoints + (m_positiveOnly ? 0 : 1)) * m_digitWidth + 2);
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m_valueMin = positiveOnly ? (min < 0 ? 0 : min) : min;
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m_valueMax = positiveOnly ? (max < 0 ? 0 : max) : max;
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if(m_value < m_valueMin)
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{
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setValue(m_valueMin);
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}
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else if(m_value > m_valueMax)
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{
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setValue(m_valueMax);
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}
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else
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{
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m_text = formatText(0);
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m_textNew = m_text;
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m_value = 0;
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m_valueNew = m_value;
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update();
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}
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}
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quint64 ValueDialZ::findExponent(int digit)
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{
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quint64 e = 1;
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int d = (m_numDigits + m_numDecimalPoints + (m_positiveOnly ? 0 : 1)) - digit;
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d = d - (d / 4) - 1;
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for(int i = 0; i < d; i++)
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e *= 10;
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return e;
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}
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QChar ValueDialZ::digitNeigh(QChar c, bool dir)
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{
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if (c == QChar('+')) {
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return QChar('-');
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} else if (c == QChar('-')) {
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return QChar('+');
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}
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if(dir)
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{
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if(c == QChar('0')) {
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return QChar('9');
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} else {
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return QChar::fromLatin1(c.toLatin1() - 1);
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}
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}
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else
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{
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if(c == QChar('9')) {
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return QChar('0');
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} else {
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return QChar::fromLatin1(c.toLatin1() + 1);
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}
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}
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}
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QString ValueDialZ::formatText(qint64 value)
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{
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qDebug("ValueDialZ::formatText: value: %lld", value);
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QString str = QString("%1%2").arg(m_positiveOnly ? "" : value < 0 ? "-" : "+").arg(value < 0 ? -value : value, m_numDigits, 10, QChar('0'));
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for(int i = 0; i < m_numDecimalPoints; i++)
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{
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int ipoint = m_numDigits + (m_positiveOnly ? 0 : 1) - 3 - 3 * i;
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if (ipoint != 0) { // do not insert leading point
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str.insert(ipoint, m_groupSeparator);
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}
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}
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return str;
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}
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void ValueDialZ::paintEvent(QPaintEvent*)
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{
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QPainter painter(this);
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painter.setPen(Qt::black);
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painter.setBrush(m_background);
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painter.drawRect(0, 0, width() - 1, height() - 1);
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painter.setPen(m_colorMapper.getBoundaryColor());
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painter.setBrush(Qt::NoBrush);
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for (int i = 1; i < 1 + m_numDigits + m_numDecimalPoints; i++)
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{
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painter.setPen(m_colorMapper.getBoundaryColor());
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painter.drawLine(1 + i * m_digitWidth, 1, 1 + i * m_digitWidth, height() - 1);
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painter.setPen(m_colorMapper.getBoundaryAlphaColor());
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painter.drawLine(0 + i * m_digitWidth, 1, 0 + i * m_digitWidth, height() - 1);
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painter.drawLine(2 + i * m_digitWidth, 1, 2 + i * m_digitWidth, height() - 1);
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}
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painter.setPen(m_colorMapper.getBoundaryAlphaColor());
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painter.drawLine(1, 1, 1, height() - 1);
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painter.drawLine(width() - 2, 1, width() - 2, height() - 1);
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// dial borders
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painter.setPen(m_colorMapper.getDarkBorderColor());
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painter.drawLine(0, 0, width() - 2, 0);
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painter.drawLine(0, height() - 1, 0, 0);
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painter.setPen(m_colorMapper.getLightBorderColor());
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painter.drawLine(1, height() - 1, width() - 1, height() - 1);
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painter.drawLine(width() - 1, height() - 1, width() - 1, 0);
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if (m_hightlightedDigit >= 0)
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{
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painter.setPen(Qt::NoPen);
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painter.setBrush(m_colorMapper.getHighlightColor());
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painter.drawRect(2 + m_hightlightedDigit * m_digitWidth, 1, m_digitWidth - 1, height() - 1);
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}
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if (m_animationState == 0)
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{
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for (int i = 0; i < m_text.length(); i++)
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{
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painter.setClipRect(1 + i * m_digitWidth, 1, m_digitWidth, m_digitHeight * 2);
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painter.setPen(m_colorMapper.getSecondaryForegroundColor());
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painter.drawText(QRect(1 + i * m_digitWidth, m_digitHeight * 0.6, m_digitWidth, m_digitHeight), Qt::AlignCenter, m_text.mid(i, 1));
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if (m_text[i] != m_groupSeparator)
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{
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painter.setPen(m_colorMapper.getForegroundColor());
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painter.drawText(QRect(1 + i * m_digitWidth, m_digitHeight * -0.7, m_digitWidth, m_digitHeight), Qt::AlignCenter, digitNeigh(m_text[i], true));
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painter.drawText(QRect(1 + i * m_digitWidth, m_digitHeight * 1.9, m_digitWidth, m_digitHeight), Qt::AlignCenter, digitNeigh(m_text[i], false));
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}
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}
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painter.setClipping(false);
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if ((m_cursor >= 0) && (m_cursorState))
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{
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painter.setPen(Qt::NoPen);
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painter.setBrush(m_colorMapper.getSecondaryForegroundColor());
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painter.drawRect(4 + m_cursor * m_digitWidth, 1 + m_digitHeight * 1.5, m_digitWidth - 5, m_digitHeight / 6);
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}
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}
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else
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{
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for(int i = 0; i < m_text.length(); i++)
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{
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if (m_text[i] == m_textNew[i])
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{
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painter.setClipRect(1 + i * m_digitWidth, 1, m_digitWidth, m_digitHeight * 2);
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painter.setPen(m_colorMapper.getSecondaryForegroundColor());
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painter.drawText(QRect(1 + i * m_digitWidth, m_digitHeight * 0.6, m_digitWidth, m_digitHeight), Qt::AlignCenter, m_text.mid(i, 1));
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if (m_text[i] != m_groupSeparator)
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{
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painter.setPen(m_colorMapper.getForegroundColor());
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painter.drawText(QRect(1 + i * m_digitWidth, m_digitHeight * -0.7, m_digitWidth, m_digitHeight), Qt::AlignCenter, digitNeigh(m_text[i], true));
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painter.drawText(QRect(1 + i * m_digitWidth, m_digitHeight * 1.9, m_digitWidth, m_digitHeight), Qt::AlignCenter, digitNeigh(m_text[i], false));
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}
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}
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else
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{
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int h = m_digitHeight * 0.6 + m_digitHeight * m_animationState / 2.0;
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painter.setClipRect(1 + i * m_digitWidth, 1, m_digitWidth, m_digitHeight * 2);
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painter.setPen(m_colorMapper.getSecondaryForegroundColor());
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painter.drawText(QRect(1 + i * m_digitWidth, h, m_digitWidth, m_digitHeight), Qt::AlignCenter, m_text.mid(i, 1));
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if (m_text[i] != m_groupSeparator)
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{
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painter.setPen(m_colorMapper.getForegroundColor());
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painter.drawText(QRect(1 + i * m_digitWidth, h + m_digitHeight * -0.7, m_digitWidth, m_digitHeight), Qt::AlignCenter, digitNeigh(m_text[i], true));
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painter.drawText(QRect(1 + i * m_digitWidth, h + m_digitHeight * 1.9, m_digitWidth, m_digitHeight), Qt::AlignCenter, digitNeigh(m_text[i], false));
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}
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}
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}
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}
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}
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void ValueDialZ::mousePressEvent(QMouseEvent* event)
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{
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int i;
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i = (event->x() - 1) / m_digitWidth;
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if (m_positiveOnly)
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if ((m_text[i] == m_groupSeparator) || (m_text[i] == QChar('+')) || (m_text[i] == QChar('-')))
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{
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i++;
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if (i > m_numDigits + m_numDecimalPoints + (m_positiveOnly ? 0 : 1))
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{
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return;
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}
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}
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Qt::MouseButton mouseButton = event->button();
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if (mouseButton == Qt::RightButton) // ceil value at current digit
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{
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if(m_cursor >= 0)
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{
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m_cursor = -1;
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m_blinkTimer.stop();
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update();
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}
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qint64 e = findExponent(i);
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m_valueNew = (m_value / e) * e;
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setValue(m_valueNew);
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emit changed(m_valueNew);
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//qDebug("ValueDial::mousePressEvent: Qt::RightButton: i: %d e: %ll new: %ll", i, e, valueNew);
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}
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else if (mouseButton == Qt::LeftButton) // set cursor at current digit
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{
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m_cursor = i;
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m_cursorState = true;
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m_blinkTimer.start(400);
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update();
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}
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}
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void ValueDialZ::mouseMoveEvent(QMouseEvent* event)
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{
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int i;
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i = (event->x() - 1) / m_digitWidth;
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if(m_text[i] == m_groupSeparator)
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{
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i = -1;
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}
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if(i != m_hightlightedDigit)
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{
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m_hightlightedDigit = i;
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update();
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}
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}
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void ValueDialZ::wheelEvent(QWheelEvent* event)
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{
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int i;
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i = (event->x() - 1) / m_digitWidth;
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if (m_text[i] != m_groupSeparator)
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{
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m_hightlightedDigit = i;
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}
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else
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{
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return;
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}
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if (m_cursor >= 0)
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{
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m_cursor = -1;
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m_blinkTimer.stop();
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update();
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}
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if(m_animationState == 0)
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{
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if (!m_positiveOnly && (m_hightlightedDigit == 0))
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{
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m_valueNew = (-m_value < m_valueMin) ? m_valueMin : (-m_value > m_valueMax) ? m_valueMax : -m_value;
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}
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else
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{
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qint64 e = findExponent(m_hightlightedDigit);
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if(event->delta() < 0)
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{
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if (event->modifiers() & Qt::ShiftModifier) {
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e *= 5;
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} else if (event->modifiers() & Qt::ControlModifier) {
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e *= 2;
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}
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m_valueNew = (m_value - e < m_valueMin) ? m_valueMin : m_value - e;
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}
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else
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{
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if (event->modifiers() & Qt::ShiftModifier) {
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e *= 5;
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} else if (event->modifiers() & Qt::ControlModifier) {
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e *= 2;
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}
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m_valueNew = (m_value + e > m_valueMax) ? m_valueMax : m_value + e;
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}
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}
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setValue(m_valueNew);
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emit changed(m_valueNew);
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event->accept();
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}
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}
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void ValueDialZ::leaveEvent(QEvent*)
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{
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if(m_hightlightedDigit != -1) {
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m_hightlightedDigit = -1;
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update();
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}
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}
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void ValueDialZ::keyPressEvent(QKeyEvent* value)
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{
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if(m_cursor >= 0)
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{
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if((value->key() == Qt::Key_Return) || (value->key() == Qt::Key_Enter) || (value->key() == Qt::Key_Escape))
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{
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m_cursor = -1;
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m_cursorState = false;
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m_blinkTimer.stop();
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update();
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return;
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}
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}
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if((m_cursor < 0) && (m_hightlightedDigit >= 0))
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{
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m_cursor = m_hightlightedDigit;
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if (m_text[m_cursor] == m_groupSeparator) {
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m_cursor++;
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}
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if(m_cursor >= m_numDigits + m_numDecimalPoints + (m_positiveOnly ? 0 : 1)) {
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return;
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}
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m_cursorState = true;
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m_blinkTimer.start(400);
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update();
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}
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if(m_cursor < 0) {
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return;
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}
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if ((value->key() == Qt::Key_Left) || (value->key() == Qt::Key_Backspace))
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{
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if(m_cursor > 0)
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{
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m_cursor--;
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if (m_text[m_cursor] == m_groupSeparator) {
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m_cursor--;
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}
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if (m_cursor < 0) {
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m_cursor++;
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}
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m_cursorState = true;
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update();
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return;
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}
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}
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else if(value->key() == Qt::Key_Right)
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{
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if(m_cursor < m_numDecimalPoints + m_numDigits)
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{
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m_cursor++;
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if (m_text[m_cursor] == m_groupSeparator) {
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|
m_cursor++;
|
|
}
|
|
|
|
if(m_cursor >= m_numDecimalPoints + m_numDigits + (m_positiveOnly ? 0 : 1)) {
|
|
m_cursor--;
|
|
}
|
|
|
|
m_cursorState = true;
|
|
update();
|
|
return;
|
|
}
|
|
}
|
|
else if(value->key() == Qt::Key_Up)
|
|
{
|
|
if (!m_positiveOnly && (m_cursor == 0))
|
|
{
|
|
if(m_animationState != 0) {
|
|
m_value = m_valueNew;
|
|
}
|
|
|
|
m_valueNew = (-m_value < m_valueMin) ? m_valueMin : (-m_value > m_valueMax) ? m_valueMax : -m_value;
|
|
}
|
|
else
|
|
{
|
|
qint64 e = findExponent(m_cursor);
|
|
|
|
if (value->modifiers() & Qt::ShiftModifier) {
|
|
e *= 5;
|
|
} else if (value->modifiers() & Qt::ControlModifier) {
|
|
e *= 2;
|
|
}
|
|
|
|
if(m_animationState != 0) {
|
|
m_value = m_valueNew;
|
|
}
|
|
|
|
m_valueNew = m_value + e > m_valueMax ? m_valueMax : m_value + e;
|
|
}
|
|
|
|
setValue(m_valueNew);
|
|
emit changed(m_valueNew);
|
|
}
|
|
else if(value->key() == Qt::Key_Down)
|
|
{
|
|
if (!m_positiveOnly && (m_cursor == 0))
|
|
{
|
|
if(m_animationState != 0) {
|
|
m_value = m_valueNew;
|
|
}
|
|
|
|
m_valueNew = (-m_value < m_valueMin) ? m_valueMin : (-m_value > m_valueMax) ? m_valueMax : -m_value;
|
|
}
|
|
else
|
|
{
|
|
qint64 e = findExponent(m_cursor);
|
|
|
|
if (value->modifiers() & Qt::ShiftModifier) {
|
|
e *= 5;
|
|
} else if (value->modifiers() & Qt::ControlModifier) {
|
|
e *= 2;
|
|
}
|
|
|
|
if(m_animationState != 0) {
|
|
m_value = m_valueNew;
|
|
}
|
|
|
|
m_valueNew = m_value - e < m_valueMin ? m_valueMin : m_value - e;
|
|
}
|
|
|
|
setValue(m_valueNew);
|
|
emit changed(m_valueNew);
|
|
}
|
|
|
|
if(value->text().length() != 1) {
|
|
return;
|
|
}
|
|
|
|
QChar c = value->text()[0];
|
|
|
|
if ((c == QChar('+')) && (m_cursor == 0) && (m_text[m_cursor] == QChar('-'))) // change sign to positive
|
|
{
|
|
setValue(-m_value);
|
|
emit changed(m_valueNew);
|
|
update();
|
|
}
|
|
else if ((c == QChar('-')) && (m_cursor == 0) && (m_text[m_cursor] == QChar('+'))) // change sign to negative
|
|
{
|
|
setValue(-m_value);
|
|
emit changed(m_valueNew);
|
|
update();
|
|
}
|
|
else if ((c >= QChar('0')) && (c <= QChar('9')) && (m_cursor > 0)) // digits
|
|
{
|
|
int d = c.toLatin1() - '0';
|
|
quint64 e = findExponent(m_cursor);
|
|
quint64 value = abs(m_value);
|
|
int sign = m_value < 0 ? -1 : 1;
|
|
quint64 v = (value / e) % 10;
|
|
|
|
if(m_animationState != 0) {
|
|
m_value = m_valueNew;
|
|
}
|
|
|
|
v = value - v * e;
|
|
v += d * e;
|
|
setValue(sign*v);
|
|
emit changed(m_valueNew);
|
|
m_cursor++;
|
|
|
|
if (m_text[m_cursor] == m_groupSeparator) {
|
|
m_cursor++;
|
|
}
|
|
|
|
if(m_cursor >= m_numDigits + m_numDecimalPoints + (m_positiveOnly ? 0 : 1))
|
|
{
|
|
m_cursor = -1;
|
|
m_blinkTimer.stop();
|
|
}
|
|
else
|
|
{
|
|
m_cursorState = true;
|
|
}
|
|
|
|
update();
|
|
}
|
|
}
|
|
|
|
void ValueDialZ::focusInEvent(QFocusEvent*)
|
|
{
|
|
if(m_cursor == -1) {
|
|
m_cursor = 0;
|
|
m_cursorState = true;
|
|
m_blinkTimer.start(400);
|
|
update();
|
|
}
|
|
}
|
|
|
|
void ValueDialZ::focusOutEvent(QFocusEvent*)
|
|
{
|
|
m_cursor = -1;
|
|
m_blinkTimer.stop();
|
|
update();
|
|
}
|
|
|
|
void ValueDialZ::animate()
|
|
{
|
|
update();
|
|
|
|
if(m_animationState > 0)
|
|
m_animationState++;
|
|
else if(m_animationState < 0)
|
|
m_animationState--;
|
|
else {
|
|
m_animationTimer.stop();
|
|
m_animationState = 0;
|
|
return;
|
|
}
|
|
|
|
if(abs(m_animationState) >= 4) {
|
|
m_animationState = 0;
|
|
m_animationTimer.stop();
|
|
m_value = m_valueNew;
|
|
m_text = m_textNew;
|
|
}
|
|
}
|
|
|
|
void ValueDialZ::blink()
|
|
{
|
|
if(m_cursor >= 0) {
|
|
m_cursorState = !m_cursorState;
|
|
update();
|
|
}
|
|
}
|