improve new disobedience search code. --choosealpha is dead now

[disorder] / disobedience / progress.c

diff --git a/disobedience/progress.c b/disobedience/progress.c
new file mode 100644 (file)
index 0000000..8efeb8f
--- /dev/null
+++ b/disobedience/progress.c
@@ -0,0 +1,84 @@
+/*
+ * This file is part of DisOrder.
+ * Copyright (C) 2006, 2007 Richard Kettlewell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ */
+/** @file disobedience/progress.c
+ * @brief Progress bar support
+ */
+
+#include "disobedience.h"
+
+/** @brief State for progress windows */
+struct progress_window {
+  /** @brief The window */
+  GtkWidget *window;
+  /** @brief The bar */
+  GtkWidget *bar;
+};
+
+/** @brief Create a progress window */
+struct progress_window *progress_window_new(const char *title) {
+  struct progress_window *pw = xmalloc(sizeof *pw);
+
+  pw->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+  g_signal_connect(pw->window, "destroy",
+                  G_CALLBACK(gtk_widget_destroyed), &pw->window);
+  gtk_window_set_default_size(GTK_WINDOW(pw->window), 360, -1);
+  gtk_window_set_title(GTK_WINDOW(pw->window), title);
+  pw->bar = gtk_progress_bar_new();
+  gtk_container_add(GTK_CONTAINER(pw->window), pw->bar);
+  gtk_widget_show_all(pw->window);
+  return pw;
+}
+
+/** @brief Report current progress
+ * The window is automatically destroyed if @p progress >= @p limit.
+ * To cancel a window just call with both set to 0.
+ */
+void progress_window_progress(struct progress_window *pw,
+                             int progress,
+                             int limit) {
+  if(!pw)
+    return;
+  /* Maybe the user closed the window */
+  if(!pw->window)
+    return;
+  /* Clamp insane or inconvenient values */
+  if(limit <= 0)
+    progress = limit = 1;
+  if(progress < 0)
+    progress = 0;
+  /* Maybe we're done */
+  if(progress >= limit) {
+    gtk_widget_destroy(pw->window);
+    pw->window = pw->bar = 0;
+    return;
+  }
+  /* Display current progress */
+  gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(pw->bar),
+                                (double)progress / limit);
+}
+
+/*
+Local Variables:
+c-basic-offset:2
+comment-column:40
+fill-column:79
+indent-tabs-mode:nil
+End:
+*/