新增电池电量控件
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feiyangqingyun
386
battery/battery.cpp
Normal file
386
battery/battery.cpp
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#pragma execution_character_set("utf-8")
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#include "battery.h"
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#include "qpainter.h"
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#include "qtimer.h"
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#include "qdebug.h"
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Battery::Battery(QWidget *parent) : QWidget(parent)
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{
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minValue = 0;
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maxValue = 100;
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value = 0;
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alarmValue = 30;
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step = 0.5;
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borderRadius = 8;
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bgRadius = 5;
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headRadius = 3;
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borderColorStart = QColor(100, 100, 100);
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borderColorEnd = QColor(80, 80, 80);
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alarmColorStart = QColor(250, 118, 113);
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alarmColorEnd = QColor(204, 38, 38);
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normalColorStart = QColor(50, 205, 51);
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normalColorEnd = QColor(60, 179, 133);
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isForward = false;
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currentValue = 0;
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timer = new QTimer(this);
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timer->setInterval(10);
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connect(timer, SIGNAL(timeout()), this, SLOT(updateValue()));
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}
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Battery::~Battery()
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{
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if (timer->isActive()) {
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timer->stop();
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}
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}
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void Battery::paintEvent(QPaintEvent *)
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{
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//绘制准备工作,启用反锯齿
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QPainter painter(this);
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painter.setRenderHints(QPainter::Antialiasing | QPainter::TextAntialiasing);
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//绘制边框
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drawBorder(&painter);
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//绘制背景
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drawBg(&painter);
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//绘制头部
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drawHead(&painter);
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}
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void Battery::drawBorder(QPainter *painter)
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{
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painter->save();
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double headWidth = width() / 10;
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double batteryWidth = width() - headWidth;
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//绘制电池边框
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QPointF topLeft(5, 5);
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QPointF bottomRight(batteryWidth, height() - 5);
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batteryRect = QRectF(topLeft, bottomRight);
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painter->setPen(QPen(borderColorStart, 5));
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painter->setBrush(Qt::NoBrush);
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painter->drawRoundedRect(batteryRect, borderRadius, borderRadius);
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painter->restore();
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}
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void Battery::drawBg(QPainter *painter)
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{
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painter->save();
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QLinearGradient batteryGradient(QPointF(0, 0), QPointF(0, height()));
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if (currentValue <= alarmValue) {
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batteryGradient.setColorAt(0.0, alarmColorStart);
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batteryGradient.setColorAt(1.0, alarmColorEnd);
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} else {
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batteryGradient.setColorAt(0.0, normalColorStart);
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batteryGradient.setColorAt(1.0, normalColorEnd);
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}
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int margin = qMin(width(), height()) / 20;
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double unit = (batteryRect.width() - (margin * 2)) / 100;
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double width = currentValue * unit;
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QPointF topLeft(batteryRect.topLeft().x() + margin, batteryRect.topLeft().y() + margin);
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QPointF bottomRight(width + margin + 5, batteryRect.bottomRight().y() - margin);
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QRectF rect(topLeft, bottomRight);
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painter->setPen(Qt::NoPen);
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painter->setBrush(batteryGradient);
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painter->drawRoundedRect(rect, bgRadius, bgRadius);
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painter->restore();
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}
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void Battery::drawHead(QPainter *painter)
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{
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painter->save();
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QPointF headRectTopLeft(batteryRect.topRight().x(), height() / 3);
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QPointF headRectBottomRight(width(), height() - height() / 3);
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QRectF headRect(headRectTopLeft, headRectBottomRight);
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QLinearGradient headRectGradient(headRect.topLeft(), headRect.bottomLeft());
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headRectGradient.setColorAt(0.0, borderColorStart);
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headRectGradient.setColorAt(1.0, borderColorEnd);
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painter->setPen(Qt::NoPen);
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painter->setBrush(headRectGradient);
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painter->drawRoundedRect(headRect, headRadius, headRadius);
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painter->restore();
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}
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void Battery::updateValue()
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{
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if (isForward) {
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currentValue -= step;
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if (currentValue <= value) {
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timer->stop();
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}
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} else {
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currentValue += step;
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if (currentValue >= value) {
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timer->stop();
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}
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}
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this->update();
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}
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double Battery::getMinValue() const
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{
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return this->minValue;
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}
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double Battery::getMaxValue() const
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{
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return this->maxValue;
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}
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double Battery::getValue() const
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{
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return this->value;
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}
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double Battery::getAlarmValue() const
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{
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return this->alarmValue;
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}
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double Battery::getStep() const
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{
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return this->step;
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}
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int Battery::getBorderRadius() const
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{
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return this->borderRadius;
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}
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int Battery::getBgRadius() const
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{
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return this->bgRadius;
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}
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int Battery::getHeadRadius() const
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{
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return this->headRadius;
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}
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QColor Battery::getBorderColorStart() const
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{
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return this->borderColorStart;
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}
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QColor Battery::getBorderColorEnd() const
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{
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return this->borderColorEnd;
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}
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QColor Battery::getAlarmColorStart() const
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{
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return this->alarmColorStart;
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}
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QColor Battery::getAlarmColorEnd() const
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{
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return this->alarmColorEnd;
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}
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QColor Battery::getNormalColorStart() const
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{
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return this->normalColorStart;
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}
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QColor Battery::getNormalColorEnd() const
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{
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return this->normalColorEnd;
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}
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QSize Battery::sizeHint() const
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{
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return QSize(150, 80);
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}
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QSize Battery::minimumSizeHint() const
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{
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return QSize(30, 10);
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}
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void Battery::setRange(double minValue, double maxValue)
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{
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//如果最小值大于或者等于最大值则不设置
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if (minValue >= maxValue) {
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return;
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}
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this->minValue = minValue;
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this->maxValue = maxValue;
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//如果目标值不在范围值内,则重新设置目标值
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//值小于最小值则取最小值,大于最大值则取最大值
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if (value < minValue) {
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setValue(minValue);
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} else if (value > maxValue) {
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setValue(maxValue);
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}
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this->update();
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}
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void Battery::setRange(int minValue, int maxValue)
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{
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setRange((double)minValue, (double)maxValue);
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}
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void Battery::setMinValue(double minValue)
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{
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setRange(minValue, maxValue);
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}
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void Battery::setMaxValue(double maxValue)
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{
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setRange(minValue, maxValue);
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}
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void Battery::setValue(double value)
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{
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//值和当前值一致则无需处理
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if (value == this->value) {
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return;
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}
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//值小于最小值则取最小值,大于最大值则取最大值
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if (value < minValue) {
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value = minValue;
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} else if (value > maxValue) {
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value = maxValue;
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}
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if (value > currentValue) {
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isForward = false;
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} else if (value < currentValue) {
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isForward = true;
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} else {
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return;
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}
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this->value = value;
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this->update();
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emit valueChanged(value);
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timer->start();
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}
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void Battery::setValue(int value)
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{
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setValue((double)value);
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}
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void Battery::setAlarmValue(double alarmValue)
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{
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if (this->alarmValue != alarmValue) {
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this->alarmValue = alarmValue;
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this->update();
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}
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}
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void Battery::setAlarmValue(int alarmValue)
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{
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setAlarmValue((double)alarmValue);
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}
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void Battery::setStep(double step)
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{
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if (this->step != step) {
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this->step = step;
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this->update();
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}
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}
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void Battery::setStep(int step)
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{
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setStep((double)step);
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}
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void Battery::setBorderRadius(int borderRadius)
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{
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if (this->borderRadius != borderRadius) {
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this->borderRadius = borderRadius;
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this->update();
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}
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}
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void Battery::setBgRadius(int bgRadius)
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{
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if (this->bgRadius != bgRadius) {
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this->bgRadius = bgRadius;
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this->update();
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}
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}
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void Battery::setHeadRadius(int headRadius)
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{
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if (this->headRadius != headRadius) {
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this->headRadius = headRadius;
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this->update();
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}
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}
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void Battery::setBorderColorStart(const QColor &borderColorStart)
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{
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if (this->borderColorStart != borderColorStart) {
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this->borderColorStart = borderColorStart;
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this->update();
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}
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}
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void Battery::setBorderColorEnd(const QColor &borderColorEnd)
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{
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if (this->borderColorEnd != borderColorEnd) {
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this->borderColorEnd = borderColorEnd;
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this->update();
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}
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}
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void Battery::setAlarmColorStart(const QColor &alarmColorStart)
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{
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if (this->alarmColorStart != alarmColorStart) {
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this->alarmColorStart = alarmColorStart;
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this->update();
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}
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}
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void Battery::setAlarmColorEnd(const QColor &alarmColorEnd)
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{
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if (this->alarmColorEnd != alarmColorEnd) {
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this->alarmColorEnd = alarmColorEnd;
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this->update();
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}
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}
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void Battery::setNormalColorStart(const QColor &normalColorStart)
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{
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if (this->normalColorStart != normalColorStart) {
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this->normalColorStart = normalColorStart;
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this->update();
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}
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}
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void Battery::setNormalColorEnd(const QColor &normalColorEnd)
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{
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if (this->normalColorEnd != normalColorEnd) {
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this->normalColorEnd = normalColorEnd;
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this->update();
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}
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}
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