Call collect_data() regularly

[batteryviewer] / batteryviewer.c

diff --git a/batteryviewer.c b/batteryviewer.c
index 4b8b75401a48a000ccaeafc823747c7711dced2e..65d70091b118606d32376ebd92c7472b698dcbe6 100644 (file)
--- a/batteryviewer.c
+++ b/batteryviewer.c
@@ -1,27 +1,52 @@
 #include "chart.h"
 #include <gtk/gtk.h>
 
-static void activate(GtkApplication *app,
-                     gpointer user_data __attribute__((unused))) {
+struct State {
+  BVChart *voltage;
+  BVChart *current;
+};
+
+static gboolean collect_data(struct State *state __attribute__((unused))) {
+  return TRUE;
+}
+
+static void activate(GtkApplication *app, gpointer user_data) {
 
   GtkWidget *window = gtk_application_window_new(app);
-  gtk_window_set_title(GTK_WINDOW(window), "Window");
+  gtk_window_set_title(GTK_WINDOW(window), "BatteryViewer");
   gtk_window_set_default_size(GTK_WINDOW(window), 200, 200);
 
-  GtkWidget *chart = bv_chart_new();
-  gtk_container_add(GTK_CONTAINER(window), chart);
-  bv_chart_add_point(BV_CHART(chart), 0.0, 0.0);
-  bv_chart_add_point(BV_CHART(chart), 1.0, 1.0);
-  bv_chart_add_point(BV_CHART(chart), 3.0, 2.0);
+  GtkWidget *box = gtk_box_new(GTK_ORIENTATION_VERTICAL, 1);
+  gtk_container_add(GTK_CONTAINER(window), box);
+
+  struct State *state = (struct State *)user_data;
+  state->voltage = BV_CHART(bv_chart_new());
+  bv_chart_add_point(state->voltage, 0.0, 0.0);
+  bv_chart_add_point(state->voltage, 1.0, 1.0);
+  bv_chart_add_point(state->voltage, 3.0, 2.0);
+  gboolean expand = TRUE;
+  gboolean fill = TRUE;
+  guint padding = 0;
+  gtk_box_pack_start(GTK_BOX(box), GTK_WIDGET(state->voltage), expand, fill,
+                     padding);
+
+  state->current = BV_CHART(bv_chart_new());
+  bv_chart_add_point(state->current, 0.0, 1.0);
+  bv_chart_add_point(state->current, 1.0, 0.0);
+  gtk_box_pack_end(GTK_BOX(box), GTK_WIDGET(state->current), expand, fill,
+                   padding);
 
   gtk_widget_show_all(window);
+
+  g_timeout_add_seconds(1, (GSourceFunc)collect_data, user_data);
 }
 
 int main(int argc, char **argv) {
+  struct State state;
 
-  GtkApplication *app =
-      gtk_application_new("org.gtk.example", G_APPLICATION_DEFAULT_FLAGS);
-  g_signal_connect(app, "activate", G_CALLBACK(activate), NULL);
+  GtkApplication *app = gtk_application_new("com.scottworley.batteryviewer",
+                                            G_APPLICATION_DEFAULT_FLAGS);
+  g_signal_connect(app, "activate", G_CALLBACK(activate), &state);
   int status = g_application_run(G_APPLICATION(app), argc, argv);
   g_object_unref(app);