--- /dev/null
+/*
+ * lgl-xml.c
+ * Copyright (C) 2003-2010 Jim Evins <evins@snaught.com>.
+ *
+ * This file is part of libglabels.
+ *
+ * libglabels is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * libglabels 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with libglabels. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+
+#include "lgl-xml.h"
+
+#include <glib/gi18n.h>
+#include <glib.h>
+#include <string.h>
+
+#include "libglabels-private.h"
+
+
+/*========================================================*/
+/* Private macros and constants. */
+/*========================================================*/
+
+/*========================================================*/
+/* Private types. */
+/*========================================================*/
+
+/*========================================================*/
+/* Private globals. */
+/*========================================================*/
+
+static lglUnits default_units = LGL_UNITS_POINT;
+
+
+/****************************************************************************/
+
+/**
+ * lgl_xml_get_prop_string:
+ * @node: the libxml2 #xmlNodePtr of the node
+ * @property: the property name
+ * @default_val: a default value to return if property not found
+ *
+ * Return value of property as a string.
+ *
+ * Returns: the property as a pointer to a gchar string. This string should
+ * be freed with g_free().
+ *
+ */
+gchar *
+lgl_xml_get_prop_string (xmlNodePtr node,
+ const gchar *property,
+ const gchar *default_val)
+{
+ gchar *val;
+ xmlChar *string;
+
+ string = xmlGetProp (node, (xmlChar *)property);
+ if ( string != NULL )
+ {
+ val = g_strdup ((gchar *)string);
+ xmlFree (string);
+ return val;
+ }
+
+ if (default_val)
+ {
+ return g_strdup (default_val);
+ }
+
+ return NULL;
+}
+
+
+/**
+ * lgl_xml_get_prop_i18n_string:
+ * @node: the libxml2 #xmlNodePtr of the node
+ * @property: the property name
+ * @default_val: a default value to return if property not found
+ *
+ * Return value of a translatable property as a string.
+ *
+ * Returns: the property as a pointer to a gchar string. This string should
+ * be freed with g_free().
+ *
+ */
+gchar *
+lgl_xml_get_prop_i18n_string (xmlNodePtr node,
+ const gchar *property,
+ const gchar *default_val)
+{
+ gchar *_property;
+ gchar *val;
+ xmlChar *string;
+
+ _property = g_strdup_printf ("_%s", property);
+ string = xmlGetProp (node, (xmlChar *)_property);
+ g_free (_property);
+
+ if ( string != NULL )
+ {
+ val = g_strdup (gettext ((char *)string));
+ xmlFree (string);
+ return val;
+ }
+
+ string = xmlGetProp (node, (xmlChar *)property);
+ if ( string != NULL )
+ {
+ val = g_strdup ((gchar *)string);
+ xmlFree (string);
+ return val;
+ }
+
+ if (default_val)
+ {
+ return g_strdup (default_val);
+ }
+
+ return NULL;
+}
+
+
+/**
+ * lgl_xml_get_prop_double:
+ * @node: the libxml2 #xmlNodePtr of the node
+ * @property: the property name
+ * @default_val: a default value to return if property not found
+ *
+ * Return value of property as a double.
+ *
+ * Returns: the property as a double.
+ *
+ */
+gdouble
+lgl_xml_get_prop_double (xmlNodePtr node,
+ const gchar *property,
+ gdouble default_val)
+{
+ gdouble val;
+ xmlChar *string;
+
+ string = xmlGetProp (node, (xmlChar *)property);
+ if ( string != NULL )
+ {
+ val = g_strtod ((gchar *)string, NULL);
+ xmlFree (string);
+ return val;
+ }
+
+ return default_val;
+}
+
+
+/**
+ * lgl_xml_get_prop_boolean:
+ * @node: the libxml2 #xmlNodePtr of the node
+ * @property: the property name
+ * @default_val: a default value to return if property not found
+ *
+ * Return value of property as a boolean.
+ *
+ * Returns: the property as a boolean.
+ *
+ */
+gboolean
+lgl_xml_get_prop_boolean (xmlNodePtr node,
+ const gchar *property,
+ gboolean default_val)
+{
+ gboolean val;
+ xmlChar *string;
+
+ string = xmlGetProp (node, (xmlChar *)property);
+ if ( string != NULL )
+ {
+ val = !((xmlStrcasecmp (string, (xmlChar *)"false") == 0) ||
+ xmlStrEqual (string, (xmlChar *)"0"));;
+ xmlFree (string);
+ return val;
+ }
+
+ return default_val;
+}
+
+
+/**
+ * lgl_xml_get_prop_int:
+ * @node: the libxml2 #xmlNodePtr of the node
+ * @property: the property name
+ * @default_val: a default value to return if property not found
+ *
+ * Return value of property as an integer.
+ *
+ * Returns: the property as an integer.
+ *
+ */
+gint
+lgl_xml_get_prop_int (xmlNodePtr node,
+ const gchar *property,
+ gint default_val)
+{
+ gint val;
+ xmlChar *string;
+
+ string = xmlGetProp (node, (xmlChar *)property);
+ if ( string != NULL )
+ {
+ val = strtol ((char *)string, NULL, 0);
+ xmlFree (string);
+ return val;
+ }
+
+ return default_val;
+}
+
+
+/**
+ * lgl_xml_get_prop_uint:
+ * @node: the libxml2 #xmlNodePtr of the node
+ * @property: the property name
+ * @default_val: a default value to return if property not found
+ *
+ * Return value of property (usually formatted in hex) as an unsigned integer.
+ *
+ * Returns: the property as an unsigned integer.
+ *
+ */
+guint
+lgl_xml_get_prop_uint (xmlNodePtr node,
+ const gchar *property,
+ guint default_val)
+{
+ guint val;
+ xmlChar *string;
+
+ string = xmlGetProp (node, (xmlChar *)property);
+ if ( string != NULL )
+ {
+ val = strtoul ((char *)string, NULL, 0);
+ xmlFree (string);
+ return val;
+ }
+
+ return default_val;
+}
+
+
+/**
+ * lgl_xml_get_prop_length:
+ * @node: the libxml2 #xmlNodePtr of the node
+ * @property: the property name
+ * @default_val: a default value to return if property not found
+ *
+ * Return value of a length property as a double, converting to internal
+ * units (points). The property is expected to be formatted as a number
+ * followed by a units string. If there is no units string, the length
+ * is assumed to be in points. Valid units strings are "pt" for points,
+ * "in" for inches, "mm" for millimeters, "cm" for centimeters, and
+ * "pc" for picas.
+ *
+ * Returns: the length in points.
+ *
+ */
+gdouble
+lgl_xml_get_prop_length (xmlNodePtr node,
+ const gchar *property,
+ gdouble default_val)
+{
+ gdouble val;
+ xmlChar *string;
+ xmlChar *unit_id;
+ lglUnits units;
+
+ string = xmlGetProp (node, (xmlChar *)property);
+ if ( string != NULL )
+ {
+
+ val = g_strtod ((gchar *)string, (gchar **)&unit_id);
+
+ if (unit_id != string)
+ {
+ unit_id = (xmlChar *)g_strchug ((gchar *)unit_id);
+ units = lgl_units_from_id ((gchar *)unit_id);
+ if (units != LGL_UNITS_INVALID)
+ {
+ val *= lgl_units_get_points_per_unit (units);
+ }
+ else
+ {
+ g_message ("Line %ld, Node \"%s\", Property \"%s\": Unknown unit \"%s\", assuming points",
+ xmlGetLineNo (node), node->name, property, unit_id);
+ }
+ }
+ else
+ {
+ val = 0.0;
+ }
+
+ xmlFree (string);
+ return val;
+ }
+
+ return default_val;
+}
+
+
+/**
+ * lgl_xml_set_prop_string:
+ * @node: the libxml2 #xmlNodePtr of the node
+ * @property: the property name
+ * @val: the value to set
+ *
+ * Set a property from a string.
+ *
+ */
+void
+lgl_xml_set_prop_string (xmlNodePtr node,
+ const gchar *property,
+ const gchar *val)
+{
+ if (val != NULL)
+ {
+ xmlSetProp (node, (xmlChar *)property, (xmlChar *)val);
+ }
+}
+
+
+/**
+ * lgl_xml_set_prop_double:
+ * @node: the libxml2 #xmlNodePtr of the node
+ * @property: the property name
+ * @val: the value to set
+ *
+ * Set a property from a double.
+ *
+ */
+void
+lgl_xml_set_prop_double (xmlNodePtr node,
+ const gchar *property,
+ gdouble val)
+{
+ gchar *string, buffer[G_ASCII_DTOSTR_BUF_SIZE];
+
+ /* Guarantee "C" locale by use of g_ascii_formatd */
+ string = g_ascii_formatd (buffer, G_ASCII_DTOSTR_BUF_SIZE, "%g", val);
+
+ xmlSetProp (node, (xmlChar *)property, (xmlChar *)string);
+}
+
+
+/**
+ * lgl_xml_set_prop_boolean:
+ * @node: the libxml2 #xmlNodePtr of the node
+ * @property: the property name
+ * @val: the value to set
+ *
+ * Set a property from a boolean.
+ *
+ */
+void
+lgl_xml_set_prop_boolean (xmlNodePtr node,
+ const gchar *property,
+ gboolean val)
+{
+ xmlSetProp (node, (xmlChar *)property, (xmlChar *)(val ? "True" : "False"));
+}
+
+/**
+ * lgl_xml_set_prop_int:
+ * @node: the libxml2 #xmlNodePtr of the node
+ * @property: the property name
+ * @val: the value to set
+ *
+ * Set a property from an integer.
+ *
+ */
+void
+lgl_xml_set_prop_int (xmlNodePtr node,
+ const gchar *property,
+ gint val)
+{
+ gchar *string;
+
+ string = g_strdup_printf ("%d", val);
+ xmlSetProp (node, (xmlChar *)property, (xmlChar *)string);
+ g_free (string);
+}
+
+/**
+ * lgl_xml_set_prop_uint_hex:
+ * @node: the libxml2 #xmlNodePtr of the node
+ * @property: the property name
+ * @val: the value to set
+ *
+ * Set a property from an unsigned integer and format in hex.
+ *
+ */
+void
+lgl_xml_set_prop_uint_hex (xmlNodePtr node,
+ const gchar *property,
+ guint val)
+{
+ gchar *string;
+
+ string = g_strdup_printf ("0x%08x", val);
+ xmlSetProp (node, (xmlChar *)property, (xmlChar *)string);
+ g_free (string);
+}
+
+/**
+ * lgl_xml_set_prop_length:
+ * @node: the libxml2 #xmlNodePtr of the node
+ * @property: the property name
+ * @val: the length to set in internal units (points)
+ *
+ * Set a property from a length, performing any necessary conversion.
+ * Length properties are formatted as a number followed by a units string.
+ * The units of the formatted property is determined by the most recent call to
+ * lgl_xml_set_default_units().
+ *
+ */
+void
+lgl_xml_set_prop_length (xmlNodePtr node,
+ const gchar *property,
+ gdouble val)
+{
+ gchar *string, buffer[G_ASCII_DTOSTR_BUF_SIZE];
+ gchar *string_unit;
+
+ /* Convert to default units */
+ val *= lgl_units_get_units_per_point (default_units);
+
+ /* Guarantee "C" locale by use of g_ascii_formatd */
+ string = g_ascii_formatd (buffer, G_ASCII_DTOSTR_BUF_SIZE, "%g", val);
+
+ string_unit = g_strdup_printf ("%s%s", string, lgl_units_get_id (default_units));
+ xmlSetProp (node, (xmlChar *)property, (xmlChar *)string_unit);
+ g_free (string_unit);
+}
+
+/**
+ * lgl_xml_is_node
+ * @node: the libxml2 #xmlNodePtr of the node
+ * @name : the node name
+ *
+ * Test if a node name matches given name.
+ *
+ * Returns: TRUE if the name of the node matches. Otherwise FALSE.
+ *
+ */
+gboolean
+lgl_xml_is_node (xmlNodePtr node,
+ const gchar *name)
+{
+ return xmlStrEqual (node->name, (xmlChar *)name);
+}
+
+
+/**
+ * lgl_xml_get_node_content
+ * @node: the libxml2 #xmlNodePtr of the node
+ *
+ * Get the content of a node.
+ *
+ * Returns: the property as a pointer to a gchar string. This string should
+ * be freed with g_free().
+ */
+gchar *
+lgl_xml_get_node_content (xmlNodePtr node)
+{
+ xmlChar *xml_content;
+ gchar *g_content;
+
+ xml_content = xmlNodeGetContent (node);
+
+ if (xml_content != NULL)
+ {
+ g_content = g_strdup ((gchar *)xml_content);
+ xmlFree (xml_content);
+ return g_content;
+ }
+
+ return NULL;
+}
+
+
+/**
+ * lgl_xml_set_default_units:
+ * @units: default units selection (#lglUnits)
+ *
+ * Set the default units when formatting lengths. See
+ * lgl_xml_set_prop_length().
+ *
+ */
+void
+lgl_xml_set_default_units (lglUnits units)
+{
+ g_return_if_fail ((units >= LGL_UNITS_FIRST) && (units <= LGL_UNITS_LAST));
+
+ default_units = units;
+}
+
+
+
+/*
+ * Local Variables: -- emacs
+ * mode: C -- emacs
+ * c-basic-offset: 8 -- emacs
+ * tab-width: 8 -- emacs
+ * indent-tabs-mode: nil -- emacs
+ * End: -- emacs
+ */
projects / glabels / blobdiff