Gui for project

[jackhyde]

Hello everyone ,
I have already a working project and I need to create a gui .
The interface It should have more buttons, every button has to perform a function.
How should I proceed to create this ?
The program is complex has many headers and a single main.
Can you tell me some examples? thank you

[raven-worx]

@jackhyde said in Gui for project:

The interface It should have more buttons, every button has to perform a function.
How should I proceed to create this ?
Can you tell me some examples?

Yes, here you go.

You can either create the UI yourself or use the QtDesigner to create a GUI.
Take a look at Signals/Slots to trigger actions when they are pressed.

[jackhyde]

Thanks for the response.
I made a successful example. I press a button, the button changes, and I carry out a function (the structure of my code should be so)
writing this:
MAINWINDOWS.H

public slots :

    void push()
    {
     ....
    }

MAINWINDOWS.CPP

void MainWindow::on_pushButton_clicked()
{
    QPixmap pix(":/rover.png");
    QIcon icon(pix);
    ui->pushButton->setIcon(icon);
    ui->pushButton->setIconSize(QSize(200,200));
    push();
}

and simple main.

My problem is how integrate my code .....
The part of heartbeat must be a button

#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <unistd.h>
#include <stdlib.h>
#include <fcntl.h>
#include <time.h>
#include <unistd.h>
#include <termios.h>
#include <string.h>
#if (defined __QNX__) | (defined __QNXNTO__)
/* QNX specific headers */
#include <unix.h>
#else
/* Linux / MacOS POSIX timer headers */
#include <sys/time.h>
#include <time.h>
#include <arpa/inet.h>
#endif

/* This assumes you have the mavlink headers on your include path
or in the same folder as this source file */
#include "c_library_v1-master/common/mavlink.h"

#define BUFFER_LENGTH 2041 // minimum buffer size that can be used with qnx (I don't know why)

uint64_t microsSinceEpoch();

void pause_tasto();
int main(int argc, char* argv[])
{
       char help[] = "--help";
       char target_ip[100];
       float position[6] = {};
       int sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
       struct sockaddr_in gcAddr;
       struct sockaddr_in locAddr;
       //struct sockaddr_in fromAddr;
       uint8_t buf[BUFFER_LENGTH];
       ssize_t recsize;
       socklen_t fromlen;
       int bytes_sent;
       mavlink_message_t msg;
       uint16_t len;
       int i = 0;
       //int success = 0;
       unsigned int temp = 0;
       // Check if --help flag was used
       if ((argc == 2) && (strcmp(argv[1], help) == 0))
    {
             printf("\n");
             printf("\tUsage:\n\n");
             printf("\t");
             printf("%s", argv[0]);
             printf(" <ip address of QGroundControl>\n");
             printf("\tDefault for localhost: udp-server 127.0.0.1\n\n");
             exit(EXIT_FAILURE);

    }
       // Change the target ip if parameter was given
       strcpy(target_ip, "127.0.0.1");
       if (argc == 2)

    {
             strcpy(target_ip, argv[1]);
    }

       memset(&locAddr, 0, sizeof(locAddr));
       locAddr.sin_family = AF_INET;
       locAddr.sin_addr.s_addr = INADDR_ANY;
       locAddr.sin_port = htons(14551);
       /* Bind the socket to port 14551 - necessary to receive packets from qgroundcontrol */
       if (-1 == bind(sock,(struct sockaddr *)&locAddr, sizeof(struct sockaddr)))
    {
             perror("error bind failed");
             close(sock);
             exit(EXIT_FAILURE);
    }
       /* Attempt to make it non blocking */
       if (fcntl(sock, F_SETFL, O_NONBLOCK | FASYNC) < 0)
    {
             fprintf(stderr, "error setting nonblocking: %s\n", strerror(errno));
             close(sock);
             exit(EXIT_FAILURE);
    }

       memset(&gcAddr, 0, sizeof(gcAddr));
       gcAddr.sin_family = AF_INET;
       gcAddr.sin_addr.s_addr = inet_addr(target_ip);
       gcAddr.sin_port = htons(14550);


		/*****************/

		/* START COMMAND */

		/*****************/

		///////////////////////////////////////////////////////////
		/////////////////  HEARTBEAT      /////////////////////////
		///////////////////////////////////////////////////////////

		printf("\nHeartbeat");

		mavlink_msg_heartbeat_pack(5, 1, &msg, 2, 3, 1, 4, 3);
		len = mavlink_msg_to_send_buffer(buf, &msg);
		bytes_sent = sendto(sock, buf, len, 0, (struct sockaddr*)&gcAddr, sizeof(struct sockaddr_in));
		sleep(2);

		memset(buf, 0, BUFFER_LENGTH);
		recsize = recvfrom(sock, (void *)buf, BUFFER_LENGTH, 0, (struct sockaddr *)&gcAddr, &fromlen);
		if (recsize > 0)
		{
			// Something received - print out all bytes and parse packet
			mavlink_message_t msg;
			mavlink_status_t status;

			printf("Bytes Received: %d\nDatagram: ", (int)recsize);
			for (i = 0; i < recsize; ++i)
			{
				   temp = buf[i];
				   printf("%02x ", (unsigned char)temp);
				   if (mavlink_parse_char(MAVLINK_COMM_0, buf[i], &msg, &status))
				   {
						  // Packet received
						  printf("\nReceived packet: SYS: %d, COMP: %d, LEN: %d, MSG ID: %d\n", msg.sysid, msg.compid, msg.len, msg.msgid);
				   }
			}
			printf("\n");
		}
		memset(buf, 0, BUFFER_LENGTH);
		sleep(2); // Sleep 2 seconds


		///////////////////////////////////////////////////////////
		/////////////////  END HEART     /////////////////////////
		///////////////////////////////////////////////////////////
......
......
///////////////////////////////////////////////////////////
///////////////////   END /////////////////////////////////
///////////////////////////////////////////////////////////

pause_tasto();
}

void pause_tasto()
{
 printf("\n\nPremi un tasto\n");
 struct termios trm;
 memset(&trm, 0, sizeof(struct termios));
 cfmakeraw(&trm);
 struct termios old;
 tcgetattr(STDIN_FILENO, &old);
 tcsetattr(STDIN_FILENO, TCSAFLUSH, &trm);
 char buf;
 read(STDIN_FILENO, &buf, 1);
 tcsetattr(STDIN_FILENO, TCSAFLUSH, &old);
}

/* QNX timer version */

#if (defined __QNX__) | (defined __QNXNTO__)
uint64_t microsSinceEpoch()
{
      struct timespec time;
      uint64_t micros = 0;
      clock_gettime(CLOCK_REALTIME, &time);
      micros = (uint64_t)time.tv_sec * 1000000 + time.tv_nsec/1000;
      return micros;

}

#else
uint64_t microsSinceEpoch()
{
     struct timeval tv;
      uint64_t micros = 0;
      gettimeofday(&tv, NULL);
      micros =  ((uint64_t)tv.tv_sec) * 1000000 + tv.tv_usec;
      return micros;
}

#endif

[raven-worx]

@jackhyde
sorry, but you should start leaning the basics before going to for such a task, when i see this code.
You wont gain any benefits from letting others write your code. Even such big amount of code.

[jackhyde]

Hello ,
I posted the code (not completely) to make the idea of ​​what I should do.
I do not want that someone will write the code for me I would like to learn.
I began to see qt and doing simple little programs with buttons.
Those for the moment work ...
But I am in difficulty to integrate my code ...
I would like to put part of my code in different buttons but going to define functions in mainwindow.h and then recalling them in mainwindows.c (as I do for the buttons of the most simple programs) I can not ...
I apologize if it appeared that I wanted the code already written ... I just want advice or to know if you know of similar examples so that following them can learn.
The error are:

1. linker command failed with exit code 1
2. duplicate symbols for architecture
   thank you

[jackhyde]

the code works but now I have another problem :(
I have developed the code of ios I would need a well executable in Windows environment.
there is a way to do it from mac?
if I try to compile the same code in windows I mabiente this error
"Needs a compiler to Set build"
I followed some guide on the internet to fix it but did not succeeded.
you can advise me a way? thank you

[SGaist]

Hi,

No, you can't cross-compile from macOS to Windows.

Also, you already have thread about your compiler setup here.