Initial revision

1 files changed, 239 insertions, 0 deletions

diff --git a/xsettings/xsettings-common.c b/xsettings/xsettings-common.c
new file mode 100644
index 0000000..7529f97
--- /dev/null
+++ b/xsettings/xsettings-common.c
@@ -0,0 +1,239 @@
+#include "string.h"
+#include "stdlib.h"
+
+#include <X11/Xlib.h>
+#include <X11/Xmd.h>		/* For CARD32 */
+
+#include "xsettings-common.h"
+
+XSettingsSetting *
+xsettings_setting_copy (XSettingsSetting *setting)
+{
+  XSettingsSetting *result;
+  size_t str_len;
+  
+  result = malloc (sizeof *result);
+  if (!result)
+    return NULL;
+
+  str_len = strlen (setting->name);
+  result->name = malloc (str_len + 1);
+  if (!result->name)
+    goto err;
+
+  memcpy (result->name, setting->name, str_len + 1);
+
+  result->type = setting->type;
+
+  switch (setting->type)
+    {
+    case XSETTINGS_TYPE_INT:
+      result->data.v_int = setting->data.v_int;
+      break;
+    case XSETTINGS_TYPE_COLOR:
+      result->data.v_color = setting->data.v_color;
+      break;
+    case XSETTINGS_TYPE_STRING:
+      str_len = strlen (setting->data.v_string);
+      result->data.v_string = malloc (str_len + 1);
+      if (!result->data.v_string)
+	goto err;
+
+      memcpy (result->data.v_string, setting->data.v_string, str_len + 1);
+      break;
+    }
+
+  result->last_change_serial = setting->last_change_serial;
+
+  return result;
+
+ err:
+  if (result->name)
+    free (result->name);
+  free (result);
+  
+  return NULL;
+}
+
+XSettingsList *
+xsettings_list_copy (XSettingsList *list)
+{
+  XSettingsList *new = NULL;
+  XSettingsList *old_iter = list;
+  XSettingsList *new_iter = NULL;
+
+  while (old_iter)
+    {
+      XSettingsList *new_node;
+
+      new_node = malloc (sizeof *new_node);
+      if (!new_node)
+	goto error;
+
+      new_node->setting = xsettings_setting_copy (old_iter->setting);
+      if (!new_node->setting)
+	{
+	  free (new_node);
+	  goto error;
+	}
+
+      if (new_iter)
+	new_iter->next = new_node;
+      else
+	new = new_node;
+
+      new_iter = new_node;
+      
+      old_iter = old_iter->next;
+    }
+
+  return new;
+
+ error:
+  xsettings_list_free (new);
+  return NULL;
+}
+
+int
+xsettings_setting_equal (XSettingsSetting *setting_a,
+			 XSettingsSetting *setting_b)
+{
+  if (setting_a->type != setting_b->type)
+    return 0;
+
+  if (strcmp (setting_a->name, setting_b->name) != 0)
+    return 0;
+
+  switch (setting_a->type)
+    {
+    case XSETTINGS_TYPE_INT:
+      return setting_a->data.v_int == setting_b->data.v_int;
+    case XSETTINGS_TYPE_COLOR:
+      return (setting_a->data.v_color.red == setting_b->data.v_color.red &&
+	      setting_a->data.v_color.green == setting_b->data.v_color.green &&
+	      setting_a->data.v_color.blue == setting_b->data.v_color.blue &&
+	      setting_a->data.v_color.alpha == setting_b->data.v_color.alpha);
+    case XSETTINGS_TYPE_STRING:
+      return strcmp (setting_a->data.v_string, setting_b->data.v_string) == 0;
+    }
+
+  return 0;
+}
+
+void
+xsettings_setting_free (XSettingsSetting *setting)
+{
+  if (setting->type == XSETTINGS_TYPE_STRING)
+    free (setting->data.v_string);
+  
+  free (setting);
+}
+
+void
+xsettings_list_free (XSettingsList *list)
+{
+  while (list)
+    {
+      XSettingsList *next = list->next;
+
+      xsettings_setting_free (list->setting);
+      free (list);
+
+      list = next;
+    }
+}
+
+XSettingsResult
+xsettings_list_insert (XSettingsList    **list,
+		       XSettingsSetting  *setting)
+{
+  XSettingsList *node;
+  XSettingsList *iter;
+  XSettingsList *last = NULL;
+
+  node = malloc (sizeof *node);
+  if (!node)
+    return XSETTINGS_NO_MEM;
+  node->setting = setting;
+
+  iter = *list;
+  while (iter)
+    {
+      int cmp = strcmp (setting->name, iter->setting->name);
+
+      if (cmp < 0)
+	break;
+      else if (cmp == 0)
+	{
+	  free (node);
+	  return XSETTINGS_DUPLICATE_ENTRY;
+	}
+
+      last = iter;
+      iter = iter->next;
+    }
+  
+  if (last)
+    last->next = node;
+  else
+    *list = node;
+  
+  node->next = iter;
+  
+  return XSETTINGS_SUCCESS;
+}
+
+XSettingsResult
+xsettings_list_delete (XSettingsList **list,
+		       const char     *name)
+{
+  XSettingsList *iter;
+  XSettingsList *last = NULL;
+
+  iter = *list;
+  while (iter)
+    {
+      if (strcmp (name, iter->setting->name) == 0)
+	{
+	  if (last)
+	    last->next = iter->next;
+	  else
+	    *list = iter->next;
+  
+	  xsettings_setting_free (iter->setting);
+	  free (iter);
+
+	  return XSETTINGS_SUCCESS;
+	}
+
+      last = iter;
+      iter = iter->next;
+    }
+
+  return XSETTINGS_FAILED;
+}
+
+XSettingsSetting *
+xsettings_list_lookup (XSettingsList *list,
+		       const char    *name)
+{
+  XSettingsList *iter;
+
+  iter = list;
+  while (iter)
+    {
+      if (strcmp (name, iter->setting->name) == 0)
+	return iter->setting;
+
+      iter = iter->next;
+    }
+
+  return NULL;
+}
+
+char
+xsettings_byte_order (void)
+{
+  CARD32 myint = 0x01020304;
+  return (*(char *)&myint == 1) ? MSBFirst : LSBFirst;
+}