form1.ui.h

单片机学习资料 适合初学者进行开发学习

/****************************************************************************
** ui.h extension file, included from the uic-generated form implementation.
**
** If you wish to add, delete or rename functions or slots use
** Qt Designer which will update this file, preserving your code. Create an
** init() function in place of a constructor, and a destroy() function in
** place of a destructor.
*****************************************************************************/
#include <qpainter.h>
#include <qpixmap.h>
#include <qtimer.h>
#include <qfile.h>
#include <qdatetime.h>
#include <qtextstream.h>
#include <qmessagebox.h>
#include "stdio.h"
#include "math.h"
static int g_x[330];
static int g_y[330];
static int timer;
static int g_run_leavel;
void Form1::init()
{
    int i;
    timer = startTimer(200);
    g_run_leavel = 0;
    for(i = -160; i<161; i++)
    {
	g_x[i+159] = i + 160;
	g_y[i+159] =50 - 40 * sin(3.14 * (i+1)/80);
	g_x[i+160] = i + 161;
	g_y[i+160] = 50 - 40 * sin(3.14 * (i+1)/80);
    }
}
void Form1::timerEvent(QTimerEvent *e)
{
    if(g_run_leavel == 0)
    {}
    else
    {
	rebuild();
	redraw();
    }
}
void Form1::rebuild()
{
    int i;
    g_y[325] = g_y[1];
    for(i=1; i<321; i++)
    {
	g_y[i] = g_y[i+1];
    }
    g_y[320] = g_y[325];
}
void Form1::redraw()
{
    int i; 
    int a,b,c,d;
    QPixmap pix(320,100);
    QPainter p(&pix);
    pix.fill(black);
    p.setPen(darkGreen);
    for(i=1; i<11; i++)
    {
	a = 0;
	b = i * 10 - 10;
	c = 320;
	d = b;
	p.drawLine(a,b,c,d);
    }
    for(i=1; i<33; i++)
    {
	a = i * 10 - 10;
	b = 0;
	c = a;
	d = 100;
	p.drawLine(a,b,c,d);
    }
    p.setPen(white);
    p.drawLine(0, 50, 320, 50);
    p.drawLine(317, 47, 320, 50);
    p.drawLine(317, 53, 320, 50);
    p.drawLine(160, 0, 160, 100);
    p.drawLine(157, 3, 160, 0);
    p.drawLine(163, 3, 160, 0);
    
    p.setPen(yellow);
    for(i=-160; i<160; i++)
    {
	p.drawLine(g_x[i+160], g_y[i+160], g_x[i+161], g_y[i+161]);
    }
    p.end();
    p.begin(pixmapLabel1);
    p.drawPixmap(0, 0, pix);
    p.end();
}
    
	    
void Form1::save()
{
    int i;
    QFile file("data.txt");
    QString line, tmp_str;
    QString file_msg;
    QString now;
    QString now_tmp;
    if(file.open(IO_ReadWrite))
    {
	QTextStream stream(&file);
	stream>>line;
	if(line.isEmpty())
	{
	    file_msg = "first to save data, done";
	}
	else
	{
	    file_msg = "add data, done";
	}
	QTime now_t = QTime::currentTime();
	now_tmp = now_tmp.setNum(now_t.hour());
	now.prepend(now_tmp);
	now.append(":");
	now_tmp = now_tmp.setNum(now_t.minute());
	now.append(now_tmp);
	now.append(":");
	now_tmp = now_tmp.setNum(now_t.second());
	now.append(now_tmp);
	
	line.append(0x0d);
	line.append(now);
	line.append("the data are:");
	line.append(0x0d);
	
	for(i=1; i<321; i++)
	{
	    tmp_str.setNum(g_x[i]);
	    line.append(tmp_str);
	    line.append(",");
	    tmp_str.setNum(g_y[i]);
	    line.append(tmp_str);
	    line.append(",");
	}
	stream<<line;
	file.close();
    }
    QMessageBox::warning(this, "message", file_msg);
}



void Form1::control()
{
    QString run_msg;
    if(g_run_leavel == 0)
    {
	g_run_leavel = 1;
	run_msg = "pause";
	start->setText(run_msg);
    }
    else
    {
	g_run_leavel = 0;
	run_msg = "start";
	start->setText(run_msg);
    }
}