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-rw-r--r--src/st/croco/cr-fonts.c948
1 files changed, 948 insertions, 0 deletions
diff --git a/src/st/croco/cr-fonts.c b/src/st/croco/cr-fonts.c
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--- /dev/null
+++ b/src/st/croco/cr-fonts.c
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+/* -*- Mode: C; indent-tabs-mode:nil; c-basic-offset: 8-*- */
+
+/*
+ * This file is part of The Croco Library
+ *
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2.1 of
+ * the GNU Lesser General Public
+ * License as published by the Free Software Foundation.
+ *
+ * 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 Lesser 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
+ *
+ *See COPYRIGHTS file for copyright information
+ */
+
+#include "cr-fonts.h"
+#include <string.h>
+
+static enum CRStatus
+cr_font_family_to_string_real (CRFontFamily const * a_this,
+ gboolean a_walk_list, GString ** a_string)
+{
+ guchar const *name = NULL;
+ enum CRStatus result = CR_OK;
+
+ if (!*a_string) {
+ *a_string = g_string_new (NULL);
+ g_return_val_if_fail (*a_string,
+ CR_INSTANCIATION_FAILED_ERROR);
+ }
+
+ if (!a_this) {
+ g_string_append (*a_string, "NULL");
+ return CR_OK;
+ }
+
+ switch (a_this->type) {
+ case FONT_FAMILY_SANS_SERIF:
+ name = (guchar const *) "sans-serif";
+ break;
+
+ case FONT_FAMILY_SERIF:
+ name = (guchar const *) "sans-serif";
+ break;
+
+ case FONT_FAMILY_CURSIVE:
+ name = (guchar const *) "cursive";
+ break;
+
+ case FONT_FAMILY_FANTASY:
+ name = (guchar const *) "fantasy";
+ break;
+
+ case FONT_FAMILY_MONOSPACE:
+ name = (guchar const *) "monospace";
+ break;
+
+ case FONT_FAMILY_NON_GENERIC:
+ name = (guchar const *) a_this->name;
+ break;
+
+ default:
+ name = NULL;
+ break;
+ }
+
+ if (name) {
+ if (a_this->prev) {
+ g_string_append_printf (*a_string, ", %s", name);
+ } else {
+ g_string_append (*a_string, (const gchar *) name);
+ }
+ }
+ if (a_walk_list == TRUE && a_this->next) {
+ result = cr_font_family_to_string_real (a_this->next,
+ TRUE, a_string);
+ }
+ return result;
+}
+
+static const gchar *
+cr_predefined_absolute_font_size_to_string (enum CRPredefinedAbsoluteFontSize
+ a_code)
+{
+ gchar const *str = NULL;
+
+ switch (a_code) {
+ case FONT_SIZE_XX_SMALL:
+ str = "xx-small";
+ break;
+ case FONT_SIZE_X_SMALL:
+ str = "x-small";
+ break;
+ case FONT_SIZE_SMALL:
+ str = "small";
+ break;
+ case FONT_SIZE_MEDIUM:
+ str = "medium";
+ break;
+ case FONT_SIZE_LARGE:
+ str = "large";
+ break;
+ case FONT_SIZE_X_LARGE:
+ str = "x-large";
+ break;
+ case FONT_SIZE_XX_LARGE:
+ str = "xx-large";
+ break;
+ default:
+ str = "unknown absolute font size value";
+ }
+ return str;
+}
+
+static const gchar *
+cr_relative_font_size_to_string (enum CRRelativeFontSize a_code)
+{
+ gchar const *str = NULL;
+
+ switch (a_code) {
+ case FONT_SIZE_LARGER:
+ str = "larger";
+ break;
+ case FONT_SIZE_SMALLER:
+ str = "smaller";
+ break;
+ default:
+ str = "unknown relative font size value";
+ break;
+ }
+ return str;
+}
+
+/**
+ * cr_font_family_new:
+ * @a_type: the type of font family to create.
+ * @a_name: the name of the font family.
+ *
+ * create a font family.
+ *
+ * Returns the newly built font family.
+ */
+CRFontFamily *
+cr_font_family_new (enum CRFontFamilyType a_type, guchar * a_name)
+{
+ CRFontFamily *result = NULL;
+
+ result = g_try_malloc (sizeof (CRFontFamily));
+
+ if (!result) {
+ cr_utils_trace_info ("Out of memory");
+ return NULL;
+ }
+
+ memset (result, 0, sizeof (CRFontFamily));
+ result->type = a_type;
+
+ cr_font_family_set_name (result, a_name);
+
+ return result;
+}
+
+/**
+ * cr_font_family_to_string:
+ * @a_this: the current instance of #CRFontFamily.
+ * @a_walk_font_family_list: whether the serialize the entire list.
+ *
+ * Returns the seriliazed font family. The caller has to free it using
+ * g_free().
+ */
+guchar *
+cr_font_family_to_string (CRFontFamily const * a_this,
+ gboolean a_walk_font_family_list)
+{
+ enum CRStatus status = CR_OK;
+ guchar *result = NULL;
+ GString *stringue = NULL;
+
+ if (!a_this) {
+ result = (guchar *) g_strdup ("NULL");
+ g_return_val_if_fail (result, NULL);
+ return result;
+ }
+ status = cr_font_family_to_string_real (a_this,
+ a_walk_font_family_list,
+ &stringue);
+
+ if (status == CR_OK && stringue) {
+ result = (guchar *) g_string_free (stringue, FALSE);
+ stringue = NULL;
+
+ } else {
+ if (stringue) {
+ g_string_free (stringue, TRUE);
+ stringue = NULL;
+ }
+ }
+
+ return result;
+}
+
+/**
+ * cr_font_family_set_name:
+ * @a_this: the current instance of #CRFontFamily.
+ * @a_name: the new name
+ *
+ * Returns CR_OK upon successful completion, an error code otherwise.
+ */
+enum CRStatus
+cr_font_family_set_name (CRFontFamily * a_this, guchar * a_name)
+{
+ g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);
+
+ /*
+ *only non generic font families can have a name
+ */
+
+ if (a_this->type != FONT_FAMILY_NON_GENERIC) {
+ return CR_BAD_PARAM_ERROR;
+ }
+
+ if (a_this->name) {
+ g_free (a_this->name);
+ a_this->name = NULL;
+ }
+
+ a_this->name = a_name;
+ return CR_OK;
+}
+
+/**
+ * cr_font_family_append:
+ * @a_this: the current instance of #CRFontFamily.
+ * @a_family_to_append: the font family to append to the list
+ *
+ * Returns the new font family list.
+ */
+CRFontFamily *
+cr_font_family_append (CRFontFamily * a_this,
+ CRFontFamily * a_family_to_append)
+{
+ CRFontFamily *cur_ff = NULL;
+
+ g_return_val_if_fail (a_family_to_append, NULL);
+
+ if (!a_this)
+ return a_family_to_append;
+
+ for (cur_ff = a_this; cur_ff && cur_ff->next; cur_ff = cur_ff->next) ;
+
+ cur_ff->next = a_family_to_append;
+ a_family_to_append->prev = cur_ff;
+
+ return a_this;
+
+}
+
+/**
+ * cr_font_family_prepend:
+ * @a_this: the current instance #CRFontFamily.
+ * @a_family_to_prepend: the font family to prepend to the list.
+ *
+ * Returns the font family list.
+ */
+CRFontFamily *
+cr_font_family_prepend (CRFontFamily * a_this,
+ CRFontFamily * a_family_to_prepend)
+{
+ g_return_val_if_fail (a_this && a_family_to_prepend, NULL);
+
+ if (!a_this)
+ return a_family_to_prepend;
+
+ a_family_to_prepend->next = a_this;
+ a_this->prev = a_family_to_prepend;
+
+ return a_family_to_prepend;
+}
+
+/**
+ * cr_font_family_destroy:
+ * @a_this: the current instance of #CRFontFamily.
+ *
+ * Returns CR_OK upon successful completion, an error code otherwise.
+ */
+enum CRStatus
+cr_font_family_destroy (CRFontFamily * a_this)
+{
+ CRFontFamily *cur_ff = NULL;
+
+ g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);
+
+ for (cur_ff = a_this; cur_ff && cur_ff->next; cur_ff = cur_ff->next) ;
+
+ for (; cur_ff; cur_ff = cur_ff->prev) {
+ if (a_this->name) {
+ g_free (a_this->name);
+ a_this->name = NULL;
+ }
+
+ if (cur_ff->next) {
+ g_free (cur_ff->next);
+
+ }
+
+ if (cur_ff->prev == NULL) {
+ g_free (a_this);
+ }
+ }
+
+ return CR_OK;
+}
+
+/***************************************************
+ *'font-size' manipulation functions definitions
+ ***************************************************/
+
+/**
+ * cr_font_size_new:
+ *
+ * Returns the newly created font size.
+ */
+CRFontSize *
+cr_font_size_new (void)
+{
+ CRFontSize *result = NULL;
+
+ result = g_try_malloc (sizeof (CRFontSize));
+ if (!result) {
+ cr_utils_trace_info ("Out of memory");
+ return NULL;
+ }
+ memset (result, 0, sizeof (CRFontSize));
+
+ return result;
+}
+
+/**
+ * cr_font_size_clear:
+ * @a_this: the current instance of #CRFontSize
+ *
+ * Returns CR_OK upon successful completion, an error code otherwise.
+ */
+enum CRStatus
+cr_font_size_clear (CRFontSize * a_this)
+{
+ g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR);
+
+ switch (a_this->type) {
+ case PREDEFINED_ABSOLUTE_FONT_SIZE:
+ case RELATIVE_FONT_SIZE:
+ case INHERITED_FONT_SIZE:
+ memset (a_this, 0, sizeof (CRFontSize));
+ break;
+
+ case ABSOLUTE_FONT_SIZE:
+ memset (a_this, 0, sizeof (CRFontSize));
+ break;
+
+ default:
+ return CR_UNKNOWN_TYPE_ERROR;
+ }
+
+ return CR_OK;
+}
+
+/**
+ * cr_font_size_copy:
+ * @a_dst: the destination #CRFontSize (where to copy to).
+ * @a_src: the source #CRFontSize (where to copy from).
+ *
+ * Returns CR_OK upon successful completion, an error code otherwise.
+ */
+enum CRStatus
+cr_font_size_copy (CRFontSize * a_dst, CRFontSize const * a_src)
+{
+ g_return_val_if_fail (a_dst && a_src, CR_BAD_PARAM_ERROR);
+
+ switch (a_src->type) {
+ case PREDEFINED_ABSOLUTE_FONT_SIZE:
+ case RELATIVE_FONT_SIZE:
+ case INHERITED_FONT_SIZE:
+ cr_font_size_clear (a_dst);
+ memcpy (a_dst, a_src, sizeof (CRFontSize));
+ break;
+
+ case ABSOLUTE_FONT_SIZE:
+ cr_font_size_clear (a_dst);
+ cr_num_copy (&a_dst->value.absolute,
+ &a_src->value.absolute);
+ a_dst->type = a_src->type;
+ break;
+
+ default:
+ return CR_UNKNOWN_TYPE_ERROR;
+ }
+ return CR_OK;
+}
+
+/**
+ * cr_font_size_set_predefined_absolute_font_size:
+ * @a_this: the current instance of #CRFontSize.
+ * @a_predefined: what to set.
+ *
+ * Returns CR_OK upon successful completion, an error code otherwise.
+ */
+enum CRStatus
+cr_font_size_set_predefined_absolute_font_size (CRFontSize *a_this,
+ enum CRPredefinedAbsoluteFontSize a_predefined)
+{
+ g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR) ;
+ g_return_val_if_fail (a_predefined >= FONT_SIZE_XX_SMALL
+ && a_predefined < NB_PREDEFINED_ABSOLUTE_FONT_SIZES,
+ CR_BAD_PARAM_ERROR) ;
+
+ a_this->type = PREDEFINED_ABSOLUTE_FONT_SIZE ;
+ a_this->value.predefined = a_predefined ;
+
+ return CR_OK ;
+}
+
+/**
+ * cr_font_size_set_relative_font_size:
+ * @a_this: the current instance of #CRFontSize
+ * @a_relative: the new relative font size
+ *
+ * Returns CR_OK upon successful completion, an error code otherwise.
+ */
+enum CRStatus
+cr_font_size_set_relative_font_size (CRFontSize *a_this,
+ enum CRRelativeFontSize a_relative)
+{
+ g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR) ;
+ g_return_val_if_fail (a_relative >= FONT_SIZE_LARGER
+ && a_relative < NB_RELATIVE_FONT_SIZE,
+ CR_BAD_PARAM_ERROR) ;
+
+ a_this->type = RELATIVE_FONT_SIZE ;
+ a_this->value.relative = a_relative ;
+ return CR_OK ;
+}
+
+/**
+ * cr_font_size_set_absolute_font_size:
+ * @a_this: the current instance of #CRFontSize
+ * @a_num_type: the type of number to set.
+ * @a_value: the actual value to set.
+ *
+ * Returns CR_OK upon successful completion, an error code otherwise.
+ */
+enum CRStatus
+cr_font_size_set_absolute_font_size (CRFontSize *a_this,
+ enum CRNumType a_num_type,
+ gdouble a_value)
+{
+ g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR) ;
+ g_return_val_if_fail (a_num_type >= NUM_AUTO
+ && a_num_type < NB_NUM_TYPE,
+ CR_BAD_PARAM_ERROR) ;
+
+ a_this->type = ABSOLUTE_FONT_SIZE ;
+ cr_num_set (&a_this->value.absolute,
+ a_value, a_num_type) ;
+ return CR_OK ;
+}
+
+/**
+ * cr_font_size_set_to_inherit:
+ * @a_this: the current instance of #CRFontSize
+ *
+ * Returns CR_OK upon successful completion, an error code otherwise.
+ */
+enum CRStatus
+cr_font_size_set_to_inherit (CRFontSize *a_this)
+{
+ g_return_val_if_fail (a_this, CR_BAD_PARAM_ERROR) ;
+
+ cr_font_size_clear (a_this) ;
+ a_this->type = INHERITED_FONT_SIZE ;
+
+ return CR_OK ;
+}
+
+/**
+ * cr_font_size_is_set_to_inherit:
+ * @a_this: the current instance of #CRFontSize.
+ *
+ * Returns TRUE if the current instance is set to 'inherit'.
+ */
+gboolean
+cr_font_size_is_set_to_inherit (CRFontSize const *a_this)
+{
+ g_return_val_if_fail (a_this, FALSE) ;
+
+ return a_this->type == INHERITED_FONT_SIZE ;
+}
+
+/**
+ * cr_font_size_to_string:
+ * @a_this: the current instance of #CRFontSize
+ *
+ * Returns the serialized form of #CRFontSize. The returned string
+ * has to bee freed using g_free().
+ */
+gchar *
+cr_font_size_to_string (CRFontSize const * a_this)
+{
+ gchar *str = NULL;
+
+ if (!a_this) {
+ str = g_strdup ("NULL");
+ g_return_val_if_fail (str, NULL);
+ return str;
+ }
+ switch (a_this->type) {
+ case PREDEFINED_ABSOLUTE_FONT_SIZE:
+ str = g_strdup (cr_predefined_absolute_font_size_to_string
+ (a_this->value.predefined));
+ break;
+ case ABSOLUTE_FONT_SIZE:
+ str = (gchar *) cr_num_to_string (&a_this->value.absolute);
+ break;
+ case RELATIVE_FONT_SIZE:
+ str = g_strdup (cr_relative_font_size_to_string
+ (a_this->value.relative));
+ break;
+ case INHERITED_FONT_SIZE:
+ str = g_strdup ("inherit");
+ break;
+ default:
+ break;
+ }
+ return str;
+}
+
+/**
+ * cr_font_size_get_smaller_predefined:
+ * @a_font_size: the font size to consider.
+ * @a_smaller_size: out parameter. The a smaller value than @a_font_size.
+ */
+void
+cr_font_size_get_smaller_predefined_font_size
+ (enum CRPredefinedAbsoluteFontSize a_font_size,
+ enum CRPredefinedAbsoluteFontSize *a_smaller_size)
+{
+ enum CRPredefinedAbsoluteFontSize result = FONT_SIZE_MEDIUM ;
+
+ g_return_if_fail (a_smaller_size) ;
+ g_return_if_fail (a_font_size < NB_PREDEFINED_ABSOLUTE_FONT_SIZES
+ && a_font_size >= FONT_SIZE_XX_SMALL) ;
+
+ switch (a_font_size) {
+ case FONT_SIZE_XX_SMALL:
+ result = FONT_SIZE_XX_SMALL ;
+ break ;
+ case FONT_SIZE_X_SMALL:
+ result = FONT_SIZE_XX_SMALL ;
+ break ;
+ case FONT_SIZE_SMALL:
+ result = FONT_SIZE_X_SMALL;
+ break ;
+ case FONT_SIZE_MEDIUM:
+ result = FONT_SIZE_SMALL;
+ break ;
+ case FONT_SIZE_LARGE:
+ result = FONT_SIZE_MEDIUM;
+ break ;
+ case FONT_SIZE_X_LARGE:
+ result = FONT_SIZE_LARGE;
+ break ;
+ case FONT_SIZE_XX_LARGE:
+ result = FONT_SIZE_XX_LARGE;
+ break ;
+ case FONT_SIZE_INHERIT:
+ cr_utils_trace_info ("can't return a smaller size for FONT_SIZE_INHERIT") ;
+ result = FONT_SIZE_MEDIUM ;
+ break ;
+ default:
+ cr_utils_trace_info ("Unknown FONT_SIZE") ;
+ result = FONT_SIZE_MEDIUM ;
+ break ;
+ }
+ *a_smaller_size = result ;
+}
+
+
+/**
+ * cr_font_size_get_larger_predefined_font_size:
+ * @a_font_size: the font size to consider.
+ * @a_larger_size: out parameter. the font size considered larger than
+ * @a_font_size.
+ *
+ */
+void
+cr_font_size_get_larger_predefined_font_size
+ (enum CRPredefinedAbsoluteFontSize a_font_size,
+ enum CRPredefinedAbsoluteFontSize *a_larger_size)
+{
+ enum CRPredefinedAbsoluteFontSize result = FONT_SIZE_MEDIUM ;
+
+ g_return_if_fail (a_larger_size) ;
+ g_return_if_fail (a_font_size >= FONT_SIZE_XX_SMALL
+ && a_font_size < NB_PREDEFINED_ABSOLUTE_FONT_SIZES) ;
+
+ switch (a_font_size) {
+ case FONT_SIZE_XX_SMALL:
+ result = FONT_SIZE_X_SMALL ;
+ break ;
+ case FONT_SIZE_X_SMALL:
+ result = FONT_SIZE_SMALL ;
+ break ;
+ case FONT_SIZE_SMALL:
+ result = FONT_SIZE_MEDIUM;
+ break ;
+ case FONT_SIZE_MEDIUM:
+ result = FONT_SIZE_LARGE;
+ break ;
+ case FONT_SIZE_LARGE:
+ result = FONT_SIZE_X_LARGE;
+ break ;
+ case FONT_SIZE_X_LARGE:
+ result = FONT_SIZE_XX_LARGE ;
+ break ;
+ case FONT_SIZE_XX_LARGE:
+ result = FONT_SIZE_XX_LARGE;
+ break ;
+ case FONT_SIZE_INHERIT:
+ cr_utils_trace_info ("can't return a bigger size for FONT_SIZE_INHERIT") ;
+ result = FONT_SIZE_MEDIUM ;
+ break ;
+ default:
+ cr_utils_trace_info ("Unknown FONT_SIZE") ;
+ result = FONT_SIZE_MEDIUM ;
+ break ;
+ }
+ *a_larger_size = result ;
+}
+
+/**
+ * cr_font_size_is_predefined_absolute_font_size:
+ * @a_font_size: the font size to consider.
+ *
+ * Returns TRUE if the instance is an predefined absolute font size, FALSE
+ * otherwise.
+ */
+gboolean
+cr_font_size_is_predefined_absolute_font_size
+ (enum CRPredefinedAbsoluteFontSize a_font_size)
+{
+ if (a_font_size >= FONT_SIZE_XX_SMALL
+ && a_font_size < NB_PREDEFINED_ABSOLUTE_FONT_SIZES) {
+ return TRUE ;
+ } else {
+ return FALSE ;
+ }
+}
+
+/**
+ * cr_font_size_adjust_to_string:
+ * @a_this: the instance of #CRFontSizeAdjust.
+ *
+ * Returns the serialized form of #CRFontSizeAdjust
+ */
+gchar *
+cr_font_size_adjust_to_string (CRFontSizeAdjust const * a_this)
+{
+ gchar *str = NULL;
+
+ if (!a_this) {
+ str = g_strdup ("NULL");
+ g_return_val_if_fail (str, NULL);
+ return str;
+ }
+
+ switch (a_this->type) {
+ case FONT_SIZE_ADJUST_NONE:
+ str = g_strdup ("none");
+ break;
+ case FONT_SIZE_ADJUST_NUMBER:
+ if (a_this->num)
+ str = (gchar *) cr_num_to_string (a_this->num);
+ else
+ str = g_strdup ("unknown font-size-adjust property value"); /* Should raise an error no?*/
+ break;
+ case FONT_SIZE_ADJUST_INHERIT:
+ str = g_strdup ("inherit");
+ }
+ return str;
+}
+
+/**
+ * cr_font_style_to_string:
+ * @a_code: the current instance of #CRFontStyle .
+ *
+ * Returns the serialized #CRFontStyle. The caller must free the returned
+ * string using g_free().
+ */
+const gchar *
+cr_font_style_to_string (enum CRFontStyle a_code)
+{
+ gchar *str = NULL;
+
+ switch (a_code) {
+ case FONT_STYLE_NORMAL:
+ str = (gchar *) "normal";
+ break;
+ case FONT_STYLE_ITALIC:
+ str = (gchar *) "italic";
+ break;
+ case FONT_STYLE_OBLIQUE:
+ str = (gchar *) "oblique";
+ break;
+ case FONT_STYLE_INHERIT:
+ str = (gchar *) "inherit";
+ break;
+ default:
+ str = (gchar *) "unknown font style value";
+ break;
+ }
+ return str;
+}
+
+/**
+ * cr_font_variant_to_string:
+ * @a_code: the current instance of #CRFontVariant.
+ *
+ * Returns the serialized form of #CRFontVariant. The caller has
+ * to free the returned string using g_free().
+ */
+const gchar *
+cr_font_variant_to_string (enum CRFontVariant a_code)
+{
+ gchar *str = NULL;
+
+ switch (a_code) {
+ case FONT_VARIANT_NORMAL:
+ str = (gchar *) "normal";
+ break;
+ case FONT_VARIANT_SMALL_CAPS:
+ str = (gchar *) "small-caps";
+ break;
+ case FONT_VARIANT_INHERIT:
+ str = (gchar *) "inherit";
+ break;
+ }
+ return str;
+}
+
+/**
+ * cr_font_weight_get_bolder:
+ * @a_weight: the #CRFontWeight to consider.
+ *
+ * Returns a font weight bolder than @a_weight
+ */
+enum CRFontWeight
+cr_font_weight_get_bolder (enum CRFontWeight a_weight)
+{
+ if (a_weight == FONT_WEIGHT_INHERIT) {
+ cr_utils_trace_info ("can't return a bolder weight for FONT_WEIGHT_INHERIT") ;
+ return a_weight;
+ } else if (a_weight >= FONT_WEIGHT_900) {
+ return FONT_WEIGHT_900 ;
+ } else if (a_weight < FONT_WEIGHT_NORMAL) {
+ return FONT_WEIGHT_NORMAL ;
+ } else if (a_weight == FONT_WEIGHT_BOLDER
+ || a_weight == FONT_WEIGHT_LIGHTER) {
+ cr_utils_trace_info ("FONT_WEIGHT_BOLDER or FONT_WEIGHT_LIGHTER should not appear here") ;
+ return FONT_WEIGHT_NORMAL ;
+ } else {
+ return a_weight << 1 ;
+ }
+}
+
+/**
+ * cr_font_weight_to_string:
+ * @a_code: the font weight to consider.
+ *
+ * Returns the serialized form of #CRFontWeight.
+ */
+const gchar *
+cr_font_weight_to_string (enum CRFontWeight a_code)
+{
+ gchar *str = NULL;
+
+ switch (a_code) {
+ case FONT_WEIGHT_NORMAL:
+ str = (gchar *) "normal";
+ break;
+ case FONT_WEIGHT_BOLD:
+ str = (gchar *) "bold";
+ break;
+ case FONT_WEIGHT_BOLDER:
+ str = (gchar *) "bolder";
+ break;
+ case FONT_WEIGHT_LIGHTER:
+ str = (gchar *) "lighter";
+ break;
+ case FONT_WEIGHT_100:
+ str = (gchar *) "100";
+ break;
+ case FONT_WEIGHT_200:
+ str = (gchar *) "200";
+ break;
+ case FONT_WEIGHT_300:
+ str = (gchar *) "300";
+ break;
+ case FONT_WEIGHT_400:
+ str = (gchar *) "400";
+ break;
+ case FONT_WEIGHT_500:
+ str = (gchar *) "500";
+ break;
+ case FONT_WEIGHT_600:
+ str = (gchar *) "600";
+ break;
+ case FONT_WEIGHT_700:
+ str = (gchar *) "700";
+ break;
+ case FONT_WEIGHT_800:
+ str = (gchar *) "800";
+ break;
+ case FONT_WEIGHT_900:
+ str = (gchar *) "900";
+ break;
+ case FONT_WEIGHT_INHERIT:
+ str = (gchar *) "inherit";
+ break;
+ default:
+ str = (gchar *) "unknown font-weight property value";
+ break;
+ }
+ return str;
+}
+
+/**
+ * cr_font_stretch_to_string:
+ * @a_code: the instance of #CRFontStretch to consider.
+ *
+ * Returns the serialized form of #CRFontStretch.
+ */
+const gchar *
+cr_font_stretch_to_string (enum CRFontStretch a_code)
+{
+ gchar *str = NULL;
+
+ switch (a_code) {
+ case FONT_STRETCH_NORMAL:
+ str = (gchar *) "normal";
+ break;
+ case FONT_STRETCH_WIDER:
+ str = (gchar *) "wider";
+ break;
+ case FONT_STRETCH_NARROWER:
+ str = (gchar *) "narrower";
+ break;
+ case FONT_STRETCH_ULTRA_CONDENSED:
+ str = (gchar *) "ultra-condensed";
+ break;
+ case FONT_STRETCH_EXTRA_CONDENSED:
+ str = (gchar *) "extra-condensed";
+ break;
+ case FONT_STRETCH_CONDENSED:
+ str = (gchar *) "condensed";
+ break;
+ case FONT_STRETCH_SEMI_CONDENSED:
+ str = (gchar *) "semi-condensed";
+ break;
+ case FONT_STRETCH_SEMI_EXPANDED:
+ str = (gchar *) "semi-expanded";
+ break;
+ case FONT_STRETCH_EXPANDED:
+ str = (gchar *) "expanded";
+ break;
+ case FONT_STRETCH_EXTRA_EXPANDED:
+ str = (gchar *) "extra-expaned";
+ break;
+ case FONT_STRETCH_ULTRA_EXPANDED:
+ str = (gchar *) "ultra-expanded";
+ break;
+ case FONT_STRETCH_INHERIT:
+ str = (gchar *) "inherit";
+ break;
+ }
+ return str;
+}
+
+/**
+ * cr_font_size_destroy:
+ * @a_font_size: the font size to destroy
+ *
+ */
+void
+cr_font_size_destroy (CRFontSize * a_font_size)
+{
+ g_return_if_fail (a_font_size);
+
+ g_free (a_font_size) ;
+}
+
+/*******************************************************
+ *'font-size-adjust' manipulation function definition
+ *******************************************************/
+
+/**
+ * cr_font_size_adjust_new:
+ *
+ * Returns a newly built instance of #CRFontSizeAdjust
+ */
+CRFontSizeAdjust *
+cr_font_size_adjust_new (void)
+{
+ CRFontSizeAdjust *result = NULL;
+
+ result = g_try_malloc (sizeof (CRFontSizeAdjust));
+ if (!result) {
+ cr_utils_trace_info ("Out of memory");
+ return NULL;
+ }
+ memset (result, 0, sizeof (CRFontSizeAdjust));
+
+ return result;
+}
+
+/**
+ * cr_font_size_adjust_destroy:
+ * @a_this: the current instance of #CRFontSizeAdjust.
+ *
+ */
+void
+cr_font_size_adjust_destroy (CRFontSizeAdjust * a_this)
+{
+ g_return_if_fail (a_this);
+
+ if (a_this->type == FONT_SIZE_ADJUST_NUMBER && a_this->num) {
+ cr_num_destroy (a_this->num);
+ a_this->num = NULL;
+ }
+}