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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
Copyright (C) 2000 CodeFactory AB
Copyright (C) 2000 Jonas Borgstr\366m <jonas@codefactory.se>
Copyright (C) 2000 Anders Carlsson <andersca@codefactory.se>
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; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include <string.h>
#include <glib.h>
#include <gdk/gdk.h>
#include "css/cssvalue.h"
#include "layout/htmlstyle.h"
#include "util/htmlglobalatoms.h"
void
html_style_inherited_ref (HtmlStyleInherited *inherited)
{
inherited->refcount++;
}
void
html_style_inherited_unref (HtmlStyleInherited *inherited)
{
if (!inherited)
return;
inherited->refcount--;
if (inherited->refcount <= 0) {
if (inherited->font_spec)
html_font_specification_unref (inherited->font_spec);
if (inherited->color)
html_color_unref (inherited->color);
g_free (inherited);
}
}
void
html_style_set_style_inherited (HtmlStyle *style, HtmlStyleInherited *inherited)
{
if (style->inherited == inherited)
return;
if (style->inherited)
html_style_inherited_unref (style->inherited);
if (inherited) {
style->inherited = inherited;
html_style_inherited_ref (style->inherited);
}
}
HtmlStyleInherited *
html_style_inherited_new (void)
{
HtmlStyleInherited *result = g_new0 (HtmlStyleInherited, 1);
return result;
}
HtmlStyleInherited *
html_style_inherited_dup (HtmlStyleInherited *inherited)
{
HtmlStyleInherited *result = html_style_inherited_new ();
if (inherited)
memcpy (result, inherited, sizeof (HtmlStyleInherited));
result->refcount = 0;
/* FIXME: can font_spec be NULL here? */
if (result->font_spec)
html_font_specification_ref (result->font_spec);
if (inherited->color)
result->color = html_color_ref (inherited->color);
return result;
}
void
html_style_set_color (HtmlStyle *style, HtmlColor *color)
{
if (!html_color_equal (style->inherited->color, color)) {
if (style->inherited->refcount > 1)
html_style_set_style_inherited (style, html_style_inherited_dup (style->inherited));
if (style->inherited->color)
html_color_unref (style->inherited->color);
style->inherited->color = html_color_dup (color);
}
}
void
html_style_set_direction (HtmlStyle *style, HtmlDirectionType direction)
{
if (style->inherited->direction != direction) {
if (style->inherited->refcount > 1)
html_style_set_style_inherited (style, html_style_inherited_dup (style->inherited));
style->inherited->direction = direction;
}
}
void
html_style_set_bidi_level (HtmlStyle *style, int level)
{
if (style->inherited->bidi_level != level) {
if (style->inherited->refcount > 1)
html_style_set_style_inherited (style, html_style_inherited_dup (style->inherited));
style->inherited->bidi_level = level;
}
}
void
html_style_set_text_decoration (HtmlStyle *style, HtmlFontDecorationType decoration)
{
if (!(style->inherited->font_spec->decoration & decoration) ||
decoration == HTML_FONT_DECORATION_NONE) {
HtmlFontSpecification *spec = style->inherited->font_spec;
if (style->inherited->refcount > 1)
html_style_set_style_inherited (style, html_style_inherited_dup (style->inherited));
style->inherited->font_spec = html_font_specification_dup (spec);
html_font_specification_unref (spec);
if (decoration == HTML_FONT_DECORATION_NONE)
style->inherited->font_spec->decoration = decoration;
else
style->inherited->font_spec->decoration |= decoration;
}
}
void
html_style_set_font_variant (HtmlStyle *style, HtmlFontVariantType variant)
{
if ((style->inherited->font_spec->variant != variant)) {
HtmlFontSpecification *spec = style->inherited->font_spec;
if (style->inherited->refcount > 1)
html_style_set_style_inherited (style, html_style_inherited_dup (style->inherited));
style->inherited->font_spec = html_font_specification_dup (spec);
html_font_specification_unref (spec);
style->inherited->font_spec->variant = variant;
}
}
void
html_style_set_font_weight (HtmlStyle *style, HtmlFontWeightType weight)
{
if ((style->inherited->font_spec->weight != weight)) {
HtmlFontSpecification *spec = style->inherited->font_spec;
if (style->inherited->refcount > 1)
html_style_set_style_inherited (style, html_style_inherited_dup (style->inherited));
style->inherited->font_spec = html_font_specification_dup (spec);
html_font_specification_unref (spec);
style->inherited->font_spec->weight = weight;
}
}
void
html_style_set_font_weight_bolder (HtmlStyle *style)
{
if ((style->inherited->font_spec->weight != HTML_FONT_WEIGHT_900)) {
HtmlFontSpecification *spec = style->inherited->font_spec;
if (style->inherited->refcount > 1)
html_style_set_style_inherited (style, html_style_inherited_dup (style->inherited));
style->inherited->font_spec = html_font_specification_dup (spec);
html_font_specification_unref (spec);
style->inherited->font_spec->weight++;
}
}
void
html_style_set_font_weight_lighter (HtmlStyle *style)
{
if ((style->inherited->font_spec->weight != HTML_FONT_WEIGHT_100)) {
HtmlFontSpecification *spec = style->inherited->font_spec;
if (style->inherited->refcount > 1)
html_style_set_style_inherited (style, html_style_inherited_dup (style->inherited));
style->inherited->font_spec = html_font_specification_dup (spec);
html_font_specification_unref (spec);
style->inherited->font_spec->weight--;
}
}
void
html_style_set_font_style (HtmlStyle *style, HtmlFontStyleType font_style)
{
if ((style->inherited->font_spec->style != font_style)) {
HtmlFontSpecification *spec = style->inherited->font_spec;
if (style->inherited->refcount > 1)
html_style_set_style_inherited (style, html_style_inherited_dup (style->inherited));
style->inherited->font_spec = html_font_specification_dup (spec);
html_font_specification_unref (spec);
style->inherited->font_spec->style = font_style;
}
}
void
html_style_set_font_family (HtmlStyle *style, const gchar *family)
{
if (strcasecmp (style->inherited->font_spec->family, family) != 0) {
HtmlFontSpecification *spec = style->inherited->font_spec;
if (style->inherited->refcount > 1)
html_style_set_style_inherited (style, html_style_inherited_dup (style->inherited));
style->inherited->font_spec = html_font_specification_dup (spec);
html_font_specification_unref (spec);
g_free (style->inherited->font_spec->family);
style->inherited->font_spec->family = g_strdup (family);
}
}
void
html_style_set_font_stretch (HtmlStyle *style, HtmlFontStretchType type)
{
if ((style->inherited->font_spec->stretch != type)) {
HtmlFontSpecification *spec = style->inherited->font_spec;
if (style->inherited->refcount > 1)
html_style_set_style_inherited (style, html_style_inherited_dup (style->inherited));
style->inherited->font_spec = html_font_specification_dup (spec);
html_font_specification_unref (spec);
style->inherited->font_spec->stretch = type;
}
}
static gboolean
get_new_font_size (HtmlStyle *style, CssValue *val, HtmlFontSpecification *font_spec, gint *size)
{
gint old_size = font_spec ? font_spec->size : 0;
/* FIXME: Should probably be xdpi and ydpi */
static gdouble dpi = 0.0;
if (dpi == 0.0)
dpi = (((double) gdk_screen_width () * 25.4) /
((double) gdk_screen_width_mm ()));
/* "font-size: inherit" */
if (val->v.atom == HTML_ATOM_INHERIT) {
*size = old_size;
return TRUE;
}
switch (val->value_type) {
case CSS_PX:
*size = (gint) (72 * val->v.d / dpi);
return TRUE;
case CSS_PT:
*size = (gint) val->v.d;
return TRUE;
case CSS_PERCENTAGE:
*size = (gint) (val->v.d * old_size / 100);
return TRUE;
case CSS_NUMBER:
*size = (gint) val->v.d;
return TRUE;
case CSS_EMS:
case CSS_EXS:
*size = (gint) (val->v.d * old_size);
return TRUE;
default:
return FALSE;
}
}
static void
html_style_set_font_size_common (HtmlStyle *style, gint size)
{
if ((style->inherited->font_spec->size != size)) {
HtmlFontSpecification *spec = style->inherited->font_spec;
if (style->inherited->refcount > 1)
html_style_set_style_inherited (style, html_style_inherited_dup (style->inherited));
style->inherited->font_spec = html_font_specification_dup (spec);
html_font_specification_unref (spec);
style->inherited->font_spec->size = size;
}
}
void
html_style_set_font_size_html (HtmlStyle *style, gint htmlsize)
{
gint size = html_font_description_html_size_to_pt (htmlsize);
html_style_set_font_size_common (style, size);
}
void
html_style_set_font_size (HtmlStyle *style, HtmlFontSpecification *font_spec, CssValue *val)
{
gint size;
/* FIXME: implement this: */
#if 0
if (val->v.atom == HTML_ATOM_INHERIT)
size = style->parent->inherited->font_spec->size;
#endif
if (!get_new_font_size (style, val, font_spec, &size))
return;
html_style_set_font_size_common (style, size);
}
void
html_style_set_line_height (HtmlStyle *style, HtmlFontSpecification *font_spec, CssValue *val)
{
gint size;
/* FIXME: implement this: */
#if 0
if (val->v.atom == HTML_ATOM_INHERIT)
size = style->parent->inherited->line_height;
#endif
if (!get_new_font_size (style, val, font_spec, &size))
return;
if ((style->inherited->line_height != size)) {
if (style->inherited->refcount > 1)
html_style_set_style_inherited (style, html_style_inherited_dup (style->inherited));
style->inherited->line_height = size;
}
}
void
html_style_set_cursor (HtmlStyle *style, HtmlCursorType cursor)
{
if (style->inherited->cursor != cursor) {
if (style->inherited->refcount > 1)
html_style_set_style_inherited (style, html_style_inherited_dup (style->inherited));
style->inherited->cursor = cursor;
}
}
void
html_style_set_border_spacing (HtmlStyle *style, gushort horiz, gushort vert)
{
if (style->inherited->border_spacing_horiz != horiz || style->inherited->border_spacing_vert != vert) {
if (style->inherited->refcount > 1)
html_style_set_style_inherited (style, html_style_inherited_dup (style->inherited));
style->inherited->border_spacing_horiz = horiz;
style->inherited->border_spacing_vert = vert;
}
}
void
html_style_set_caption_side (HtmlStyle *style, HtmlCaptionSideType type)
{
if (style->inherited->caption_side != type) {
if (style->inherited->refcount > 1)
html_style_set_style_inherited (style, html_style_inherited_dup (style->inherited));
style->inherited->caption_side = type;
}
}
void
html_style_set_text_align (HtmlStyle *style, HtmlTextAlignType type)
{
if (style->inherited->text_align != type) {
if (style->inherited->refcount > 1)
html_style_set_style_inherited (style, html_style_inherited_dup (style->inherited));
style->inherited->text_align = type;
}
}
void
html_style_set_white_space (HtmlStyle *style, HtmlWhiteSpaceType type)
{
if (style->inherited->white_space != type) {
if (style->inherited->refcount > 1)
html_style_set_style_inherited (style, html_style_inherited_dup (style->inherited));
style->inherited->white_space = type;
}
}
void
html_style_set_list_style_type (HtmlStyle *style, HtmlListStyleTypeType type)
{
if (style->inherited->list_style_type != type) {
if (style->inherited->refcount > 1)
html_style_set_style_inherited (style, html_style_inherited_dup (style->inherited));
style->inherited->list_style_type = type;
}
}
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