+++ /dev/null
-/*
- * (LIBGLABELS) Template library for GLABELS
- *
- * xml.c: GLabels xml utilities module
- *
- * Copyright (C) 2003, 2004 Jim Evins <evins@snaught.com>.
- *
- * This file is part of the LIBGLABELS library.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library 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
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- * MA 02111-1307, USA
- */
-#include <config.h>
-
-#include "xml.h"
-
-#include <glib/gi18n.h>
-#include <glib/gstrfuncs.h>
-#include <glib/gmessages.h>
-#include <string.h>
-
-#include "libglabels-private.h"
-
-
-/*========================================================*/
-/* Private macros and constants. */
-/*========================================================*/
-
-#define POINTS_PER_POINT 1.0 /* internal units are points. */
-#define POINTS_PER_INCH 72.0
-#define POINTS_PER_MM 2.83464566929
-#define POINTS_PER_CM (10.0*POINTS_PER_MM)
-#define POINTS_PER_PICA (1.0/12.0)
-
-/*========================================================*/
-/* Private types. */
-/*========================================================*/
-
-typedef struct {
- xmlChar *name;
- gdouble points_per_unit;
-} UnitTableEntry;
-
-/*========================================================*/
-/* Private globals. */
-/*========================================================*/
-
-static UnitTableEntry unit_table[] = {
-
- /* These names are identical to the absolute length units supported in
- the CSS2 Specification (Section 4.3.2) */
-
- /* This table must be sorted exactly as the enumerations in lglUnitsType */
-
- /* [LGL_UNITS_POINT] */ {(xmlChar *)"pt", POINTS_PER_POINT},
- /* [LGL_UNITS_INCH] */ {(xmlChar *)"in", POINTS_PER_INCH},
- /* [LGL_UNITS_MM] */ {(xmlChar *)"mm", POINTS_PER_MM},
- /* [LGL_UNITS_CM] */ {(xmlChar *)"cm", POINTS_PER_CM},
- /* [LGL_UNITS_PICA] */ {(xmlChar *)"pc", POINTS_PER_PICA},
-
-};
-
-static lglUnitsType 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;
- gint i;
-
- string = xmlGetProp (node, (xmlChar *)property);
- if ( string != NULL ) {
-
- val = g_strtod ((gchar *)string, (gchar **)&unit);
-
- if (unit != string) {
- unit = (xmlChar *)g_strchug ((gchar *)unit);
- if (strlen ((char *)unit) > 0 ) {
- for (i=LGL_UNITS_FIRST; i<=LGL_UNITS_LAST; i++) {
- if (xmlStrcasecmp (unit, unit_table[i].name) == 0) {
- val *= unit_table[i].points_per_unit;
- break;
- }
- }
- if (i>LGL_UNITS_LAST) {
- g_message ("Line %ld, Node \"%s\", Property \"%s\": Unknown unit \"%s\", assuming points",
- xmlGetLineNo (node), node->name, property,
- unit);
- }
- }
- }
- 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 /= unit_table[default_units].points_per_unit;
-
- /* 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, unit_table[default_units].name);
- 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 (#lglUnitsType)
- *
- * Set the default units when formatting lengths. See
- * lgl_xml_set_prop_length().
- *
- */
-void
-lgl_xml_set_default_units (lglUnitsType units)
-{
- g_return_if_fail ((units >= LGL_UNITS_FIRST) && (units <= LGL_UNITS_LAST));
-
- default_units = units;
-}
-
-
projects / glabels / blobdiff