Update 2005-11-18

gtk/util.c

@@ -0,0 +1,121 @@
+/*
+  Copyright (c) 2005 Joshua Elsasser. All rights reserved.
+   
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+   
+   1. Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+   2. Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+   
+  THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS "AS IS" AND
+  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+  POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <stdarg.h>
+#include <gtk/gtk.h>
+
+#include "util.h"
+
+static void
+errcb(GtkWidget *widget, int resp, gpointer data);
+
+gboolean
+strbool(const char *str) {
+  switch(str[0]) {
+    case 'y':
+    case 'Y':
+    case '1':
+    case 'j':
+    case 'e':
+      return TRUE;
+    default:
+      if(0 == g_ascii_strcasecmp("on", str))
+        return TRUE;
+      break;
+  }
+
+  return FALSE;
+}
+
+GtkWidget *
+errmsg(GtkWidget *wind, const char *format, ...) {
+  GtkWidget *dialog;
+  va_list ap;
+
+  va_start(ap, format);
+  dialog = verrmsg(wind, NULL, NULL, format, ap);
+  va_end(ap);
+
+  return dialog;
+}
+
+GtkWidget *
+errmsg_full(GtkWidget *wind, errfunc_t func, void *data,
+            const char *format, ...) {
+  GtkWidget *dialog;
+  va_list ap;
+
+  va_start(ap, format);
+  dialog = verrmsg(wind, func, data, format, ap);
+  va_end(ap);
+
+  return dialog;
+}
+
+GtkWidget *
+verrmsg(GtkWidget *wind, errfunc_t func, void *data,
+        const char *format, va_list ap) {
+  GtkWidget *dialog;
+  char *msg;
+  GList *funcdata;
+
+  msg = g_strdup_vprintf(format, ap);
+
+  if(NULL == wind)
+    dialog = gtk_message_dialog_new(
+      NULL, 0, GTK_MESSAGE_ERROR, GTK_BUTTONS_OK, "%s", msg);
+  else
+    dialog = gtk_message_dialog_new(
+      GTK_WINDOW(wind), GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
+      GTK_MESSAGE_ERROR, GTK_BUTTONS_OK, "%s", msg);
+
+  if(NULL == func)
+    funcdata = NULL;
+  else
+    funcdata = g_list_append(g_list_append(NULL, func), data);
+  g_signal_connect(dialog, "response", G_CALLBACK(errcb), funcdata);
+  if(NULL != wind)
+    gtk_widget_show_all(dialog);
+  g_free(msg);
+
+  return dialog;
+}
+
+static void
+errcb(GtkWidget *widget, int resp SHUTUP, gpointer data) {
+  GList *funcdata;
+  errfunc_t func;
+
+  if(NULL != data) {
+    funcdata = g_list_first(data);
+    func = funcdata->data;
+    data = funcdata->next->data;
+    func(data);
+    g_list_free(funcdata);
+  }
+
+  gtk_widget_destroy(widget);
+}