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#include <stdlib.h>
#include <gtk/gtk.h>
#include <gdk/gdk.h>
#include <pthread.h>
#include <glib.h>
#include <windows.h>


pthread_t TimerThread;
int TimerThreadRun;

struct WidgetStruct
{
GtkWidget   *MainWindow,
            *WindowVbox,
            *StartButton,
            *Textbox,
            *Progressbar;

};

static void *ThreadFunction(struct WidgetStruct *Widgets)
{
    unsigned char Counter = 0;
    unsigned int ProgressValue = 0;
    char Buffer[20] = "";

    while(TimerThreadRun)
    {
        sprintf(Buffer,"%d",Counter);
        gdk_threads_enter();

        gtk_entry_set_text(Widgets->Textbox, Buffer);
        gtk_progress_bar_set_text(Widgets->Progressbar, Buffer);
        gtk_progress_set_value(GTK_PROGRESS(Widgets->Progressbar), ProgressValue);

        gdk_threads_leave();
        Counter++;

        if(Counter==0) //bei überlauf von Counter, ProgressValue++
            ProgressValue++;
            if(ProgressValue>100)
                ProgressValue=0;

        printf("%d\n",Counter);
        Sleep(50);
    }

   return NULL;
}

void cbStartButton(GtkWidget *Button, struct WidgetStruct *Widgets)
{
    if(!TimerThreadRun)
    {
      if(pthread_create( &TimerThread, NULL, &ThreadFunction, Widgets ) != 0)
        {
        printf("Konnte Thread nicht erzeugen\n");
        return EXIT_FAILURE;
        }
        else
        {
        TimerThreadRun = 1;
        printf("SendThread Erzeugt!\n");
        }
    }
    else
    {
        TimerThreadRun = 0;
    }
}

///////////////////////////////////////////////////////

int main(int argc, char** argv)
{


    struct WidgetStruct MainWidgets;

    g_thread_init (NULL);
    gdk_threads_init ();
    gdk_threads_enter ();

    gtk_init(&argc, &argv);

    ////////MainWindow//////////
    MainWidgets.MainWindow = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    MainWidgets.WindowVbox = gtk_vbox_new(FALSE,0);
    gtk_container_add(GTK_CONTAINER(MainWidgets.MainWindow), MainWidgets.WindowVbox);

    MainWidgets.Textbox = gtk_entry_new();
    gtk_box_pack_start(GTK_BOX(MainWidgets.WindowVbox), MainWidgets.Textbox,FALSE,FALSE,0);

    MainWidgets.Progressbar = gtk_progress_bar_new();
    gtk_box_pack_start(GTK_BOX(MainWidgets.WindowVbox), MainWidgets.Progressbar,FALSE,FALSE,0);

    MainWidgets.StartButton = gtk_button_new_with_label("Start");
    gtk_box_pack_end(GTK_BOX(MainWidgets.WindowVbox), MainWidgets.StartButton,FALSE,FALSE,0);

    gtk_widget_show_all(MainWidgets.MainWindow);

    ///////Signals Connecting/////////////////
    g_signal_connect(MainWidgets.MainWindow, "destroy", G_CALLBACK(gtk_main_quit), NULL);

    g_signal_connect(MainWidgets.StartButton, "clicked", G_CALLBACK(cbStartButton), &MainWidgets);

    gtk_main();
    gdk_threads_leave ();

    return 0;
}