智能灯设置：代码修改，只显示修改部分
以下是修改后的代码：
switchform.h
#ifndef SWITCHFORM_H
#define SWITCHFORM_H
#include <QWidget>
#include <QTimer>
#include <QColor>
namespace Ui {
class SwitchForm;
}
class SwitchForm : public QWidget
{
Q_OBJECT
public:
explicit SwitchForm(QWidget *parent = nullptr);
signals:
void statusChanged(bool checked);
public slots:
void updateValue();
private:
void drawBackGround(QPainter *painter);
void drawSlider(QPainter *painter);
protected:
void paintEvent(QPaintEvent *ev);
void mousePressEvent(QMouseEvent *ev);
private:
int m_space; //滑块距离边界距离
int m_radius; //圆角角度
bool m_checked; //是否选中
bool m_showText; //是否显示文字
bool m_showCircle; //是否显示圆圈
bool m_animation; //是否使用动画
QColor m_bgColorOn; //打开时候的背景色
QColor m_bgColorOff; //关闭时候的背景色
QColor m_sliderColorOn; //打开时候滑块颜色
QColor m_sliderColorOff; //关闭时候滑块颜色
QColor m_textColor; //文字颜色
QString m_textOn; //打开时候的文字
QString m_textOff; //关闭时候的文字
QTimer *m_timer; //动画定时器
int m_step; //动画步长
int m_startX; //滑块开始X轴坐标
int m_endX; //滑块结束X轴坐标
public:
int space() const;
int radius() const;
bool checked() const;
bool showText() const;
bool showCircel() const;
bool animation() const;
QColor bgColorOn() const;
QColor bgColorOff() const;
QColor sliderColorOn() const;
QColor sliderColorOff() const;
QColor textColor() const;
QString textOn() const;
QString textOff() const;
int step() const;
int startX() const;
int endX() const;
public Q_SLOTS:
void setSpace(int space);
void setRadius(int radius);
void setChecked(bool checked);
void setShowText(bool show);
void setShowCircle(bool show);
void setAnimation(bool ok);
void setBgColorOn(const QColor &color);
void setBgColorOff(const QColor &color);
void setSliderColorOn(const QColor &color);
void setSliderColorOff(const QColor &color);
void setTextColor(const QColor &color);
void setTextOn(const QString &text);
void setTextOff(const QString &text);
public slots:
bool getstate();
};
bool getStatus();
#endif // SWITCHFORM_H
#ifndef LIGHTS_H
#define LIGHTS_H
#include <QWidget>
namespace Ui {
class Lights;
}
class Lights : public QWidget
{
Q_OBJECT
public:
explicit Lights(int userid,QWidget *parent = nullptr);
~Lights();
void lightsWidget();
bool flag=false;
void showEvent(QShowEvent *event); // 重写界面
void hideEvent(QHideEvent *event); // 隐藏界面
void loadLastStatus(); // 加载上次更改的状态
void saveLastStatus(); // 保存当前更改的状态
public slots:
bool switchButton_status(bool checked);
private:
Ui::Lights *ui;
int userid;
void closeEvent(QCloseEvent *event);
QString getLastBrightness(int userid);
QString getLastState(int userid);
void updateLastBrightness(int userid, QString state,QString brightness);
};
#endif // LIGHTS_H
#include "switchform.h"
#include "ui_switchform.h"
#include <QPainter>
SwitchForm::SwitchForm(QWidget *parent) :
QWidget(parent)
{
m_space = 2;
m_radius = 5;
m_checked = false;
m_showText = true;
m_showText = false;
m_animation = true;
m_bgColorOn = QColor(102, 205, 170);//设置按钮内部颜色
m_bgColorOff = QColor(190, 190, 190);
m_sliderColorOn = QColor(255, 255, 255);
m_sliderColorOff = QColor(255, 255, 255);
m_textColor = QColor(255, 255, 255);
m_textOn = "开启"//设置按钮中的文字
m_textOff = "关闭";
m_step = 0;
m_startX = 0;
m_endX = 0;
m_timer = new QTimer(this);
m_timer->setInterval(30);
connect(m_timer, SIGNAL(timeout()), this, SLOT(updateValue()));
}
void SwitchForm::drawBackGround(QPainter *painter)
{
painter->save();
painter->setPen(Qt::NoPen);
QColor bgColor = m_checked ? m_bgColorOn : m_bgColorOff;
if (isEnabled()) {
bgColor.setAlpha(150);
}
painter->setBrush(bgColor);
QRect rect(0, 0, width(), height());
int side = qMin(width(), height());
//左侧半圆
QPainterPath path1;
path1.addEllipse(rect.x(), rect.y(), side, side);
//右侧半圆
QPainterPath path2;
path2.addEllipse(rect.width() - side, rect.y(), side, side);
//中间的矩形
QPainterPath path3;
path3.addRect(rect.x() + side / 2, rect.y(), rect.width() - side, height());
QPainterPath path = path1 + path2 + path3;
painter->drawPath(path);
//绘制文本
//滑块半径
int sliderWidth = qMin(height(), width()) - m_space * 2 - 5;
if (m_checked){
QRect textRect(0, 0, width() - sliderWidth, height());
painter->setPen(QPen(m_textColor));
painter->drawText(textRect, Qt::AlignCenter, m_textOn);
} else {
QRect textRect(sliderWidth, 0, width() - sliderWidth, height());
painter->setPen(QPen(m_textColor));
painter->drawText(textRect, Qt::AlignCenter, m_textOff);
}
painter->restore();
}
void SwitchForm::drawSlider(QPainter *painter)
{
painter->save();
painter->setPen(Qt::NoPen);
QColor color = m_checked ? m_sliderColorOn : m_sliderColorOff;
painter->setBrush(QBrush(color));
int sliderWidth = qMin(width(), height()) - m_space * 2;
int sliderX = m_checked ? width() - sliderWidth - m_space : m_space; // 修改滑块的X轴坐标
QRect rect(sliderX, m_space, sliderWidth, sliderWidth);
painter->drawEllipse(rect);
painter->restore();
}
void SwitchForm::paintEvent(QPaintEvent *ev)
{
//启用反锯齿
QPainter painter(this);
painter.setRenderHints(QPainter::Antialiasing | QPainter::TextAntialiasing);
//绘制背景
drawBackGround(&painter);
//绘制滑块
drawSlider(&painter);
}
void SwitchForm::mousePressEvent(QMouseEvent *ev)
{
Q_UNUSED(ev)
setChecked(!m_checked);
emit statusChanged(m_checked);
// 计算步长
m_step = qAbs(m_endX - m_startX) / 10; // 修改步长的计算方式
// 判断是否使用动画
if (m_animation) {
m_timer->start();
} else {
m_startX = m_endX;
update();
}
}
void SwitchForm::updateValue()
{
if (m_checked) {
if (m_startX < m_endX) {
m_startX += m_step;
} else {
m_startX = m_endX;
m_timer->stop();
}
} else {
if (m_startX > m_endX) {
m_startX -= m_step;
} else {
m_startX = m_endX;
m_timer->stop();
}
}
update();
}
int SwitchForm::space() const
{
return m_space;
}
bool SwitchForm::checked() const
{
return m_checked;
}
bool SwitchForm::showText() const
{
return m_showText;
}
bool SwitchForm::showCircel() const
{
return m_showCircle;
}
bool SwitchForm::animation() const
{
return m_animation;
}
QColor SwitchForm::bgColorOn() const
{
return m_bgColorOn;
}
QColor SwitchForm::bgColorOff() const
{
return m_bgColorOff;
}
QColor SwitchForm::sliderColorOn() const
{
return m_sliderColorOn;
}
QColor SwitchForm::sliderColorOff() const
{
return m_sliderColorOff;
}
QColor SwitchForm::textColor() const
{
return m_textColor;
}
QString SwitchForm::textOn() const
{
return m_textOn;
}
QString SwitchForm::textOff() const
{
return m_textOff;
}
int SwitchForm::step() const
{
return m_step;
}
int SwitchForm::startX() const
{
return m_startX;
}
int SwitchForm::endX() const
{
return m_endX;
}
void SwitchForm::setSpace(int space)
{
if (m_space != space) {
m_space = space;
update();
}
}
void SwitchForm::setRadius(int radius)
{
if (m_radius != radius) {
m_radius = radius;
update();
}
}
void SwitchForm::setChecked(bool checked)
{
if (m_checked != checked) {
m_checked = checked;
update();
}
}
void SwitchForm::setShowText(bool show)
{
if (m_showText != show) {
m_showText = show;
update();
}
}
void SwitchForm::setShowCircle(bool show)
{
if (m_showCircle != show) {
m_showCircle = show;
update();
}
}
void SwitchForm::setAnimation(bool ok)
{
if (m_animation != ok) {
m_animation = ok;
update();
}
}
void SwitchForm::setBgColorOn(const QColor &color)
{
if (m_bgColorOn != color) {
m_bgColorOn = color;
update();
}
}
void SwitchForm::setBgColorOff(const QColor &color)
{
if (m_bgColorOff != color) {
m_bgColorOff = color;
update();
}
}
void SwitchForm::setSliderColorOn(const QColor &color)
{
if (m_sliderColorOn != color) {
m_sliderColorOn = color;
update();
}
}
void SwitchForm::setSliderColorOff(const QColor &color)
{
if (m_sliderColorOff != color) {
m_sliderColorOff = color;
update();
}
}
void SwitchForm::setTextColor(const QColor &color)
{
if (m_textColor != color) {
m_textColor = color;
update();
}
}
void SwitchForm::setTextOn(const QString &text)
{
if (m_textOn != text) {
m_textOn = text;
update();
}
}
void SwitchForm::setTextOff(const QString &text)
{
if (m_textOff != text) {
m_textOff = text;
update();
}
}
bool SwitchForm::getstate()
{
return m_checked;
}
#include "lights.h"
#include "ui_lights.h"
#include "switchform.h"
#include "sqlite.h"
#include <QSqlQuery>
#include <QSqlDatabase>
#include <QSqlError>
#include <QCloseEvent>
#include <QDebug>
Lights::Lights(int userid,QWidget *parent) :
QWidget(parent),
ui(new Ui::Lights),
userid(userid)//保证userid无变化
{
ui->setupUi(this);
lightsWidget();
//连接开关组件的信号和自定义的槽函数
connect(ui->SwitchStatus,&SwitchForm::statusChanged,this,&Lights::switchButton_status);
// 连接完成按钮的clicked信号和自定义的槽函数
connect(ui->Finished, &QPushButton::clicked, this,[=]{
if(flag)
{
QString brighteness = QString::number(ui->ctrlform->getValue());
qDebug()<<brighteness<<userid;
updateSmartHomeStatus(userid,QString("智能灯"),QString("开启"),brighteness);
}else
{
qDebug() << "智能灯未打开！";
updateSmartHomeStatus(userid,QString("智能灯"),QString("关闭"),QString("0"));
}
});
// 加载上次更改的状态
loadLastStatus();
}
Lights::~Lights()
{
delete ui;
}
void Lights::lightsWidget()
{
setWindowTitle("智能灯设置");
//设置ui组件背景
setAutoFillBackground(true);
QPalette palette=this->palette();
QPixmap pixmap(":/user/image/image/light.jpg");
palette.setBrush(QPalette::Window, QBrush(pixmap));
setPalette(palette);
setFixedSize(600,400);
}
bool Lights::switchButton_status(bool checked)
{
qDebug()<<checked;
flag=checked;
return flag;
}
void Lights::showEvent(QShowEvent *event)
{
// 当页面显示时，加载上次更改的状态
loadLastStatus();
event->accept();
}
void Lights::hideEvent(QHideEvent *event)
{
saveLastStatus();
event->accept();
}
void Lights::closeEvent(QCloseEvent *event)
{
// 隐藏窗口而不是关闭
hide();
event->ignore();
}
void Lights::loadLastStatus()
{
qDebug()<<this->userid;
QString state = getLastState(this->userid);
QString brightness = getLastBrightness(this->userid);
qDebug()<<brightness;
if (state=="开启")
{
ui->SwitchStatus->setChecked(true);
ui->ctrlform->setValue(brightness.toInt());
}
else
{
ui->SwitchStatus->setChecked(false);
ui->ctrlform->setValue(0);
}
qDebug()<<brightness.toInt();
}
void Lights::saveLastStatus()
{
qDebug()<<this->userid;
QString state = QString(flag);
QString brightness = QString::number(ui->ctrlform->getValue());
updateLastBrightness(this->userid,state, brightness);
}
QString Lights::getLastBrightness(int userid)
{
Sqlite::sqlite_init();
QString queryStr = QString("SELECT value FROM Status WHERE uid = %1 AND device_name = '智能灯' ORDER BY sid DESC LIMIT 1").arg(userid);
qDebug()<<queryStr<<userid;
QSqlQuery query;
qDebug ()<<query.exec(queryStr);
if (query.exec(queryStr) && query.next())
{
return query.value(0).toString();
}
else
{
qDebug() << "得到上一次亮度错误: " << query.lastError().text();
return "";
}
}
void Lights::updateLastBrightness(int userid,QString state,QString brightness)
{
Sqlite::sqlite_init();
QString queryStr = QString("UPDATE Status SET value = %1 , device_state = %2 WHERE uid = %3 AND device_name = '智能灯'").arg(brightness).arg(state).arg(userid);
QSqlQuery query;
if (!query.exec(queryStr))
{
qDebug() << "更新亮度失败: " << query.lastError().text();
}
}
QString Lights::getLastState(int userid)
{
Sqlite::sqlite_init();
QString queryStr = QString("SELECT device_state FROM Status WHERE uid = %1 AND device_name = '智能灯' ORDER BY sid DESC LIMIT 1").arg(userid);
qDebug()<<queryStr<<userid;
QSqlQuery query;
qDebug ()<<query.exec(queryStr);
if (query.exec(queryStr) && query.next())
{
return query.value(0).toString();
}
else
{
qDebug() << "得到上一次状态错误: " << query.lastError().text();
return "";
}
}
-- 创建用户表
CREATE TABLE IF NOT EXISTS users (
uid INTEGER PRIMARY KEY AUTOINCREMENT,
username varchar(10),
passwd varchar(10)
);
-- 创建智能家居状态表
CREATE TABLE IF NOT EXISTS Status (
sid INTEGER PRIMARY KEY AUTOINCREMENT,
uid INTEGER ,
device_name varchar(10),
device_state varchar(10),
value varchar(10),
mode varchar(10),
FOREIGN KEY (uid) REFERENCES users (uid)
);
SELECT device_state FROM Status WHERE uid = 123 AND device_name = '智能灯';
SELECT device_state FROM Status WHERE uid = 123 AND device_name = '智能灯' ORDER BY sid DESC LIMIT 1
原文地址: http://www.cveoy.top/t/topic/fAXP 著作权归作者所有。请勿转载和采集!