CMakeLua/Utilities/cmcurl-7.19.0/docs/examples/curlgtk.c

   1 /*****************************************************************************
   2  *                                  _   _ ____  _
   3  *  Project                     ___| | | |  _ \| |
   4  *                             / __| | | | |_) | |
   5  *                            | (__| |_| |  _ <| |___
   6  *                             \___|\___/|_| \_\_____|
   7  *
   8  * $Id: curlgtk.c,v 1.1.1.1 2008-09-23 16:32:05 hoffman Exp $
   9  */
  10 /* Copyright (c) 2000 David Odin (aka DindinX) for MandrakeSoft */
  11 /* an attempt to use the curl library in concert with a gtk-threaded application */
  12
  13 #include <stdio.h>
  14 #include <gtk/gtk.h>
  15
  16 #include <curl/curl.h>
  17 #include <curl/types.h> /* new for v7 */
  18 #include <curl/easy.h> /* new for v7 */
  19
  20 GtkWidget *Bar;
  21
  22 size_t my_write_func(void *ptr, size_t size, size_t nmemb, FILE *stream)
  23 {
  24   return fwrite(ptr, size, nmemb, stream);
  25 }
  26
  27 size_t my_read_func(void *ptr, size_t size, size_t nmemb, FILE *stream)
  28 {
  29   return fread(ptr, size, nmemb, stream);
  30 }
  31
  32 int my_progress_func(GtkWidget *bar,
  33                      double t, /* dltotal */
  34                      double d, /* dlnow */
  35                      double ultotal,
  36                      double ulnow)
  37 {
  38 /*  printf("%d / %d (%g %%)\n", d, t, d*100.0/t);*/
  39   gdk_threads_enter();
  40   gtk_progress_set_value(GTK_PROGRESS(bar), d*100.0/t);
  41   gdk_threads_leave();
  42   return 0;
  43 }
  44
  45 void *my_thread(void *ptr)
  46 {
  47   CURL *curl;
  48   CURLcode res;
  49   FILE *outfile;
  50   gchar *url = ptr;
  51
  52   curl = curl_easy_init();
  53   if(curl)
  54   {
  55     outfile = fopen("test.curl", "w");
  56
  57     curl_easy_setopt(curl, CURLOPT_URL, url);
  58     curl_easy_setopt(curl, CURLOPT_WRITEDATA, outfile);
  59     curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, my_write_func);
  60     curl_easy_setopt(curl, CURLOPT_READFUNCTION, my_read_func);
  61     curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 0L);
  62     curl_easy_setopt(curl, CURLOPT_PROGRESSFUNCTION, my_progress_func);
  63     curl_easy_setopt(curl, CURLOPT_PROGRESSDATA, Bar);
  64
  65     res = curl_easy_perform(curl);
  66
  67     fclose(outfile);
  68     /* always cleanup */
  69     curl_easy_cleanup(curl);
  70   }
  71
  72   return NULL;
  73 }
  74
  75 int main(int argc, char **argv)
  76 {
  77   GtkWidget *Window, *Frame, *Frame2;
  78   GtkAdjustment *adj;
  79
  80   /* Must initialize libcurl before any threads are started */
  81   curl_global_init(CURL_GLOBAL_ALL);
  82
  83   /* Init thread */
  84   g_thread_init(NULL);
  85
  86   gtk_init(&argc, &argv);
  87   Window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
  88   Frame = gtk_frame_new(NULL);
  89   gtk_frame_set_shadow_type(GTK_FRAME(Frame), GTK_SHADOW_OUT);
  90   gtk_container_add(GTK_CONTAINER(Window), Frame);
  91   Frame2 = gtk_frame_new(NULL);
  92   gtk_frame_set_shadow_type(GTK_FRAME(Frame2), GTK_SHADOW_IN);
  93   gtk_container_add(GTK_CONTAINER(Frame), Frame2);
  94   gtk_container_set_border_width(GTK_CONTAINER(Frame2), 5);
  95   adj = (GtkAdjustment*)gtk_adjustment_new(0, 0, 100, 0, 0, 0);
  96   Bar = gtk_progress_bar_new_with_adjustment(adj);
  97   gtk_container_add(GTK_CONTAINER(Frame2), Bar);
  98   gtk_widget_show_all(Window);
  99
 100   if (!g_thread_create(&my_thread, argv[1], FALSE, NULL) != 0)
 101     g_warning("can't create the thread");
 102
 103
 104   gdk_threads_enter();
 105   gtk_main();
 106   gdk_threads_leave();
 107   return 0;
 108 }
 109