Pileus Git - grits/blob - src/gis/wms_test.c

   1 #include <gtk/gtk.h>
   2 #include <gdk/gdkkeysyms.h>
   3
   4 #include "wms.h"
   5
   6 struct CacheState {
   7         GtkWidget *image;
   8         GtkWidget *status;
   9         GtkWidget *progress;
  10 };
  11
  12 void done_callback(WmsCacheNode *node, gpointer _state)
  13 {
  14         struct CacheState *state = _state;
  15         g_message("done_callback: %p->%p", node, node->data);
  16         gtk_image_set_from_pixbuf(GTK_IMAGE(state->image), node->data);
  17 }
  18
  19 void chunk_callback(gsize cur, gsize total, gpointer _state)
  20 {
  21         struct CacheState *state = _state;
  22         g_message("chunk_callback: %d/%d", cur, total);
  23
  24         if (state->progress == NULL) {
  25                 state->progress = gtk_progress_bar_new();
  26                 gtk_box_pack_end(GTK_BOX(state->status), state->progress, FALSE, FALSE, 0);
  27                 gtk_widget_show(state->progress);
  28         }
  29
  30         if (cur == total)
  31                 gtk_widget_destroy(state->progress);
  32         else
  33                 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(state->progress), (gdouble)cur/total);
  34 }
  35
  36 gboolean key_press_cb(GtkWidget *widget, GdkEventKey *event, gpointer user_data)
  37 {
  38         if (event->keyval == GDK_q)
  39                 gtk_main_quit();
  40         return TRUE;
  41 }
  42
  43 int main(int argc, char **argv)
  44 {
  45         gtk_init(&argc, &argv);
  46         g_thread_init(NULL);
  47
  48         GtkWidget *win        = gtk_window_new(GTK_WINDOW_TOPLEVEL);
  49         GtkWidget *vbox1      = gtk_vbox_new(FALSE, 0);
  50         GtkWidget *vbox2      = gtk_vbox_new(FALSE, 0);
  51         GtkWidget *status     = gtk_statusbar_new();
  52         GtkWidget *scroll     = gtk_scrolled_window_new(NULL, NULL);
  53         GtkWidget *bmng_image = gtk_image_new();
  54         GtkWidget *srtm_image = gtk_image_new();
  55         gtk_container_add(GTK_CONTAINER(win), vbox1);
  56         gtk_box_pack_start(GTK_BOX(vbox1), scroll, TRUE, TRUE, 0);
  57         gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(scroll), vbox2);
  58         gtk_box_pack_start(GTK_BOX(vbox2), bmng_image, TRUE, TRUE, 0);
  59         gtk_box_pack_start(GTK_BOX(vbox2), srtm_image, TRUE, TRUE, 0);
  60         gtk_box_pack_start(GTK_BOX(vbox1), status, FALSE, FALSE, 0);
  61         g_signal_connect(win, "key-press-event", G_CALLBACK(key_press_cb), NULL);
  62         g_signal_connect(win, "destroy", gtk_main_quit, NULL);
  63         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll),
  64                         GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
  65
  66         struct CacheState bmng_state = {bmng_image, status, NULL};
  67         struct CacheState srtm_state = {srtm_image, status, NULL};
  68
  69         gdouble res = 200, lon = -101.76, lat = 46.85;
  70
  71         WmsInfo *bmng_info = wms_info_new_for_bmng(bmng_pixbuf_loader, bmng_pixbuf_freeer);
  72         wms_info_fetch_cache(bmng_info, NULL, res, lat, lon, chunk_callback, done_callback, &bmng_state);
  73
  74         WmsInfo *srtm_info = wms_info_new_for_srtm(srtm_pixbuf_loader, srtm_pixbuf_freeer);
  75         wms_info_fetch_cache(srtm_info, NULL, res, lat, lon, chunk_callback, done_callback, &srtm_state);
  76
  77         gtk_widget_show_all(win);
  78         gtk_main();
  79
  80         wms_info_free(bmng_info);
  81         wms_info_free(srtm_info);
  82
  83         return 0;
  84 }