基于Qt的车载GPS监控系统（5）温度设置

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基于Qt的车载GPS监控系统（5）温度设置

设置界面

这里写图片描述

界面的类构成

基类：SetDialog 实现子功能界面通用的共性元素，背景设置，系统标题，子功能名称，返回按钮。
派生类：AlarmDialog 实现温度上限，下限，当前值的显示与设置功能。

设置对话框头文件

#ifndef SETDIALOG_H#define SETDIALOG_H#include <QtGui>#include <QDebug>#include"dht9000.h"class SetDialog : public QDialog{    Q_OBJECTpublic:    SetDialog(QWidget *parent=0);protected:    QLineEdit * lineTitle;    struct st_sys_dev g_dev[1];    QToolButton *buttonSet;private:    QLabel *labelBg;};#endif // SETDIALOG_H

设置对话框实现文件

#include "setdialog.h"#include "dht9000.h"#include<QtGui>#include<QDebug>SetDialog::SetDialog( QWidget *parent)    : QDialog( parent){    load_dev(g_dev);    this->setWindowIcon(QPixmap( ":/images/1.png") );    this->setWindowTitle(tr("GP9001车载GPS监控系统"));    this->setMinimumSize(800,480);    this->setMaximumSize(800,480);    labelBg = new QLabel(this);    labelBg->setGeometry(QRect(0, 0, 800, 480));    labelBg->setPixmap(QPixmap(":/images/9001bg.jpg"));    labelBg->setScaledContents(true);    lineTitle = new QLineEdit(this);    //设置显示数字字体大小    QFont font = lineTitle->font();    font.setPointSize(font.pointSize() + 5);    lineTitle->setFont(font);    lineTitle->setText(tr("系统设置"));    lineTitle->setReadOnly(true);    lineTitle->setAlignment(Qt::AlignHCenter|Qt::AlignVCenter);    lineTitle->setGeometry(QRect(300, 90, 200, 35));    buttonSet = new QToolButton(this);    buttonSet->setGeometry(QRect(350, 360, 100, 100));    buttonSet->setText( tr( "保存/退出" ) );    buttonSet->setIcon( QPixmap( ":/images/5.png") );    buttonSet->setIconSize( QPixmap( ":/images/5.png").size() );    buttonSet->setAutoRaise( TRUE );    buttonSet->setToolButtonStyle( Qt::ToolButtonTextUnderIcon);    connect(buttonSet,SIGNAL(clicked()),this,SLOT(accept()));}

温度设置头文件

ifndef ALARMDIALOG_H#define ALARMDIALOG_H#include "setdialog.h"class AlarmDialog:public SetDialog{    Q_OBJECTpublic:    AlarmDialog(QWidget *parent = 0);public slots:    void saveDev();private:    QLabel *labTempUp;    QSpinBox *spinTempUp;    QSlider *slidTempUp;    QLabel *labTempLow;    QSpinBox *spinTempLow;    QSlider *slidTempLow;    QLabel *labHumiUp;    QSpinBox *spinHumiUp;    QSlider *slidHumiUp;};#endif // ALARMDIALOG_H

温度设置实现程序

#include"alarmdialog.h"AlarmDialog::AlarmDialog(QWidget *parent)    :SetDialog(parent){    this->lineTitle->setText(tr("温度设置"));    load_dev(g_dev);    //设置温度上限值    labTempUp = new QLabel(this);    labTempUp->setText(tr("设置温度上限值："));    labTempUp->setGeometry(QRect(200, 170, 100, 25));    spinTempUp = new QSpinBox(this);    spinTempUp->setRange(20,50);    spinTempUp->setGeometry(QRect(310, 170, 60, 25));    spinTempUp->setValue(g_dev->alarm_set.temp_upper);    slidTempUp = new QSlider(this);    slidTempUp->setRange(20,50);    slidTempUp->setOrientation(Qt::Horizontal);    slidTempUp->setGeometry(QRect(380, 170, 260, 25));    slidTempUp->setValue(g_dev->alarm_set.temp_upper);    connect(spinTempUp,SIGNAL(valueChanged(int)),slidTempUp,SLOT(setValue(int)));    connect(slidTempUp,SIGNAL(valueChanged(int)),spinTempUp,SLOT(setValue(int)));    //设置温度下限值    labTempLow = new QLabel(this);    labTempLow->setText(tr("设置温度下限值："));    labTempLow->setGeometry(QRect(200, 220, 100, 25));    spinTempLow = new QSpinBox(this);    spinTempLow->setRange(-30,15);    spinTempLow->setGeometry(QRect(310, 220, 60, 25));    spinTempLow->setValue(g_dev->alarm_set.temp_lower);    slidTempLow = new QSlider(this);    slidTempLow->setRange(-30,15);    slidTempLow->setOrientation(Qt::Horizontal);    slidTempLow->setGeometry(QRect(380, 220, 260, 25));    slidTempLow->setValue(g_dev->alarm_set.temp_lower);    connect(spinTempLow,SIGNAL(valueChanged(int)),slidTempLow,SLOT(setValue(int)));    connect(slidTempLow,SIGNAL(valueChanged(int)),spinTempLow,SLOT(setValue(int)));    //设置车厢温度    labHumiUp = new QLabel(this);    labHumiUp->setText(tr("设置车厢温度值："));    labHumiUp->setGeometry(QRect(200, 270, 100, 25));    spinHumiUp = new QSpinBox(this);    spinHumiUp->setRange(-30,20);    spinHumiUp->setGeometry(QRect(310, 270, 60, 25));    spinHumiUp->setValue(g_dev->alarm_set.temp);    slidHumiUp = new QSlider(this);    slidHumiUp->setRange(-30,20);    slidHumiUp->setOrientation(Qt::Horizontal);    slidHumiUp->setGeometry(QRect(380, 270, 260, 25));    slidHumiUp->setValue(g_dev->alarm_set.temp);    connect(spinHumiUp,SIGNAL(valueChanged(int)),slidHumiUp,SLOT(setValue(int)));    connect(slidHumiUp,SIGNAL(valueChanged(int)),spinHumiUp,SLOT(setValue(int)));    connect(this->buttonSet,SIGNAL(clicked()),this,SLOT(saveDev()));}void AlarmDialog::saveDev(){    g_dev->alarm_set.temp_upper = spinTempUp->value();    g_dev->alarm_set.temp_lower = spinTempLow->value();    g_dev->alarm_set.temp = spinHumiUp->value();    save_dev(g_dev);}

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