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css: support text-decoration-style

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The support is limited to underline single, double and wavy, which
is what pango has today.
This commit is contained in:
Paolo Borelli 2015-07-06 20:03:54 +02:00
parent 09273d91f3
commit 1eb1481bdf
6 changed files with 116 additions and 8 deletions
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54
gtk/gtkcssenumvalue.c
View File

@ -577,7 +577,8 @@ _gtk_css_text_decoration_line_value_new (GtkTextDecorationLine line)
return _gtk_css_value_ref (&text_decoration_line_values[line]);
}
GtkCssValue *_gtk_css_text_decoration_line_value_try_parse (GtkCssParser *parser)
GtkCssValue *
_gtk_css_text_decoration_line_value_try_parse (GtkCssParser *parser)
{
guint i;
@ -592,13 +593,62 @@ GtkCssValue *_gtk_css_text_decoration_line_value_try_parse (GtkCssParser *parser
return NULL;
}
GtkTextDecorationLine _gtk_css_text_decoration_line_value_get (const GtkCssValue *value)
GtkTextDecorationLine
_gtk_css_text_decoration_line_value_get (const GtkCssValue *value)
{
g_return_val_if_fail (value->class == &GTK_CSS_VALUE_TEXT_DECORATION_LINE, GTK_CSS_TEXT_DECORATION_LINE_NONE);
return value->value;
}
/* GtkTextDecorationStyle */
static const GtkCssValueClass GTK_CSS_VALUE_TEXT_DECORATION_STYLE = {
gtk_css_value_enum_free,
gtk_css_value_enum_compute,
gtk_css_value_enum_equal,
gtk_css_value_enum_transition,
gtk_css_value_enum_print
};
static GtkCssValue text_decoration_style_values[] = {
{ &GTK_CSS_VALUE_TEXT_DECORATION_STYLE, 1, GTK_CSS_TEXT_DECORATION_STYLE_SOLID, "solid" },
{ &GTK_CSS_VALUE_TEXT_DECORATION_STYLE, 1, GTK_CSS_TEXT_DECORATION_STYLE_DOUBLE, "double" },
{ &GTK_CSS_VALUE_TEXT_DECORATION_STYLE, 1, GTK_CSS_TEXT_DECORATION_STYLE_WAVY, "wavy" },
};
GtkCssValue *
_gtk_css_text_decoration_style_value_new (GtkTextDecorationStyle style)
{
g_return_val_if_fail (style < G_N_ELEMENTS (text_decoration_style_values), NULL);
return _gtk_css_value_ref (&text_decoration_style_values[style]);
}
GtkCssValue *
_gtk_css_text_decoration_style_value_try_parse (GtkCssParser *parser)
{
guint i;
g_return_val_if_fail (parser != NULL, NULL);
for (i = 0; i < G_N_ELEMENTS (text_decoration_style_values); i++)
{
if (_gtk_css_parser_try (parser, text_decoration_style_values[i].name, TRUE))
return _gtk_css_value_ref (&text_decoration_style_values[i]);
}
return NULL;
}
GtkTextDecorationStyle
_gtk_css_text_decoration_style_value_get (const GtkCssValue *value)
{
g_return_val_if_fail (value->class == &GTK_CSS_VALUE_TEXT_DECORATION_STYLE, GTK_CSS_TEXT_DECORATION_STYLE_SOLID);
return value->value;
}
/* GtkCssArea */
static const GtkCssValueClass GTK_CSS_VALUE_AREA = {

4
gtk/gtkcssenumvalueprivate.h
View File

@ -56,6 +56,10 @@ GtkCssValue * _gtk_css_text_decoration_line_value_new (GtkTextDeco
GtkCssValue * _gtk_css_text_decoration_line_value_try_parse (GtkCssParser *parser);
GtkTextDecorationLine _gtk_css_text_decoration_line_value_get (const GtkCssValue *value);
GtkCssValue * _gtk_css_text_decoration_style_value_new (GtkTextDecorationStyle style);
GtkCssValue * _gtk_css_text_decoration_style_value_try_parse (GtkCssParser *parser);
GtkTextDecorationStyle _gtk_css_text_decoration_style_value_get (const GtkCssValue *value);
GtkCssValue * _gtk_css_area_value_new (GtkCssArea area);
GtkCssValue * _gtk_css_area_value_try_parse (GtkCssParser *parser);
GtkCssArea _gtk_css_area_value_get (const GtkCssValue *value);

12
gtk/gtkcssshorthandpropertyimpl.c
View File

@ -836,12 +836,18 @@ parse_text_decoration (GtkCssShorthandProperty *shorthand,
if (values[0] == NULL)
return FALSE;
}
else if (values[1] == NULL)
else if (values[1] == NULL &&
(values[1] = _gtk_css_text_decoration_style_value_try_parse (parser)))
{
values[1] = _gtk_css_color_value_parse (parser);
if (values[1] == NULL)
return FALSE;
}
else if (values[2] == NULL)
{
values[2] = _gtk_css_color_value_parse (parser);
if (values[2] == NULL)
return FALSE;
}
else
{
/* We parsed and there's still stuff left?
@ -1202,7 +1208,7 @@ _gtk_css_shorthand_property_init_properties (void)
const char *transition_subproperties[] = { "transition-property", "transition-duration", "transition-delay", "transition-timing-function", NULL };
const char *animation_subproperties[] = { "animation-name", "animation-iteration-count", "animation-duration", "animation-delay",
"animation-timing-function", "animation-direction", "animation-fill-mode", NULL };
const char *text_decoration_subproperties[] = { "text-decoration-line", "text-decoration-color", NULL };
const char *text_decoration_subproperties[] = { "text-decoration-line", "text-decoration-style", "text-decoration-color", NULL };
const char **all_subproperties;

22
gtk/gtkcssstylepropertyimpl.c
View File

@ -629,6 +629,18 @@ parse_text_decoration_line (GtkCssStyleProperty *property,
return value;
}
static GtkCssValue *
parse_text_decoration_style (GtkCssStyleProperty *property,
GtkCssParser *parser)
{
GtkCssValue *value = _gtk_css_text_decoration_style_value_try_parse (parser);
if (value == NULL)
_gtk_css_parser_error (parser, "unknown value for property");
return value;
}
static GtkCssValue *
box_shadow_value_parse (GtkCssStyleProperty *property,
GtkCssParser *parser)
@ -1114,6 +1126,16 @@ _gtk_css_style_property_init_properties (void)
NULL,
_gtk_css_color_value_new_current_color ());
gtk_css_style_property_register ("text-decoration-style",
GTK_CSS_PROPERTY_TEXT_DECORATION_STYLE,
G_TYPE_NONE,
GTK_STYLE_PROPERTY_INHERIT,
GTK_CSS_AFFECTS_TEXT | GTK_CSS_AFFECTS_TEXT_ATTRS,
parse_text_decoration_style,
NULL,
NULL,
_gtk_css_text_decoration_style_value_new (GTK_CSS_TEXT_DECORATION_STYLE_SOLID));
gtk_css_style_property_register ("text-shadow",
GTK_CSS_PROPERTY_TEXT_SHADOW,
G_TYPE_NONE,

7
gtk/gtkcsstypesprivate.h
View File

@ -148,6 +148,7 @@ enum { /*< skip >*/
GTK_CSS_PROPERTY_LETTER_SPACING,
GTK_CSS_PROPERTY_TEXT_DECORATION_LINE,
GTK_CSS_PROPERTY_TEXT_DECORATION_COLOR,
GTK_CSS_PROPERTY_TEXT_DECORATION_STYLE,
GTK_CSS_PROPERTY_TEXT_SHADOW,
GTK_CSS_PROPERTY_BOX_SHADOW,
GTK_CSS_PROPERTY_MARGIN_TOP,
@ -273,6 +274,12 @@ typedef enum /*< skip >*/ {
GTK_CSS_TEXT_DECORATION_LINE_LINE_THROUGH
} GtkTextDecorationLine;
typedef enum /*< skip >*/ {
GTK_CSS_TEXT_DECORATION_STYLE_SOLID,
GTK_CSS_TEXT_DECORATION_STYLE_DOUBLE,
GTK_CSS_TEXT_DECORATION_STYLE_WAVY
} GtkTextDecorationStyle;
/* for the order in arrays */
typedef enum /*< skip >*/ {
GTK_CSS_TOP,

25
gtk/gtkstylecontext.c
View File

@ -3148,6 +3148,23 @@ _gtk_style_context_get_icon_extents (GtkStyleContext *context,
extents->height += border.top + border.bottom;
}
static PangoUnderline
get_pango_underline_from_style (GtkTextDecorationStyle style)
{
switch (style)
{
case GTK_CSS_TEXT_DECORATION_STYLE_DOUBLE:
return PANGO_UNDERLINE_DOUBLE;
case GTK_CSS_TEXT_DECORATION_STYLE_WAVY:
return PANGO_UNDERLINE_ERROR;
case GTK_CSS_TEXT_DECORATION_STYLE_SOLID:
default:
return PANGO_UNDERLINE_SINGLE;
}
g_return_val_if_reached (PANGO_UNDERLINE_SINGLE);
}
static PangoAttrList *
add_pango_attr(PangoAttrList *attrs, PangoAttribute *attr)
{
@ -3164,27 +3181,29 @@ _gtk_style_context_get_pango_attributes (GtkStyleContext *context)
{
PangoAttrList *attrs = NULL;
GtkTextDecorationLine decoration_line;
GtkTextDecorationStyle decoration_style;
const GdkRGBA *color;
const GdkRGBA *decoration_color;
gint letter_spacing;
/* text-decoration */
decoration_line = _gtk_css_text_decoration_line_value_get (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_TEXT_DECORATION_LINE));
decoration_style = _gtk_css_text_decoration_style_value_get (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_TEXT_DECORATION_STYLE));
color = _gtk_css_rgba_value_get_rgba (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_COLOR));
decoration_color = _gtk_css_rgba_value_get_rgba (_gtk_style_context_peek_property (context, GTK_CSS_PROPERTY_TEXT_DECORATION_COLOR));
switch (decoration_line)
{
case GTK_CSS_TEXT_DECORATION_LINE_UNDERLINE:
attrs = add_pango_attr (attrs, pango_attr_underline_new (PANGO_UNDERLINE_SINGLE));
if (!gdk_rgba_equal(color, decoration_color))
attrs = add_pango_attr (attrs, pango_attr_underline_new (get_pango_underline_from_style (decoration_style)));
if (!gdk_rgba_equal (color, decoration_color))
attrs = add_pango_attr (attrs, pango_attr_underline_color_new (decoration_color->red * 65535. + 0.5,
decoration_color->green * 65535. + 0.5,
decoration_color->blue * 65535. + 0.5));
break;
case GTK_CSS_TEXT_DECORATION_LINE_LINE_THROUGH:
attrs = add_pango_attr (attrs, pango_attr_strikethrough_new (TRUE));
if (!gdk_rgba_equal(color, decoration_color))
if (!gdk_rgba_equal (color, decoration_color))
attrs = add_pango_attr (attrs, pango_attr_strikethrough_color_new (decoration_color->red * 65535. + 0.5,
decoration_color->green * 65535. + 0.5,
decoration_color->blue * 65535. + 0.5));