static double
get_base_font_size (guint property_id,
GtkStyleProviderPrivate *provider,
GtkCssStyle *style,
GtkCssStyle *parent_style)
{
if (property_id == GTK_CSS_PROPERTY_FONT_SIZE)
{
if (parent_style)
return _gtk_css_number_value_get (gtk_css_style_get_value (parent_style, GTK_CSS_PROPERTY_FONT_SIZE), 100);
else
return _gtk_css_font_size_get_default (provider);
}
return _gtk_css_number_value_get (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_FONT_SIZE), 100);
}
static double
get_base_font_size (guint property_id,
GtkStyleProviderPrivate *provider,
GtkCssComputedValues *values,
GtkCssComputedValues *parent_values,
GtkCssDependencies *dependencies)
{
if (property_id == GTK_CSS_PROPERTY_FONT_SIZE)
{
*dependencies = GTK_CSS_DEPENDS_ON_PARENT;
if (parent_values)
return _gtk_css_number_value_get (_gtk_css_computed_values_get_value (parent_values, GTK_CSS_PROPERTY_FONT_SIZE), 100);
else
return _gtk_css_font_size_get_default (provider);
}
*dependencies = GTK_CSS_DEPENDS_ON_FONT_SIZE;
return _gtk_css_number_value_get (_gtk_css_computed_values_get_value (values, GTK_CSS_PROPERTY_FONT_SIZE), 100);
}
static GtkCssValue *
gtk_css_value_dimension_compute (GtkCssValue *number,
guint property_id,
GtkStyleProviderPrivate *provider,
GtkCssStyle *style,
GtkCssStyle *parent_style)
{
GtkBorderStyle border_style;
/* special case according to http://dev.w3.org/csswg/css-backgrounds/#the-border-width */
switch (property_id)
{
case GTK_CSS_PROPERTY_BORDER_TOP_WIDTH:
border_style = _gtk_css_border_style_value_get(gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_TOP_STYLE));
if (border_style == GTK_BORDER_STYLE_NONE || border_style == GTK_BORDER_STYLE_HIDDEN)
return gtk_css_dimension_value_new (0, GTK_CSS_NUMBER);
break;
case GTK_CSS_PROPERTY_BORDER_RIGHT_WIDTH:
border_style = _gtk_css_border_style_value_get(gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_RIGHT_STYLE));
if (border_style == GTK_BORDER_STYLE_NONE || border_style == GTK_BORDER_STYLE_HIDDEN)
return gtk_css_dimension_value_new (0, GTK_CSS_NUMBER);
break;
case GTK_CSS_PROPERTY_BORDER_BOTTOM_WIDTH:
border_style = _gtk_css_border_style_value_get(gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_BOTTOM_STYLE));
if (border_style == GTK_BORDER_STYLE_NONE || border_style == GTK_BORDER_STYLE_HIDDEN)
return gtk_css_dimension_value_new (0, GTK_CSS_NUMBER);
break;
case GTK_CSS_PROPERTY_BORDER_LEFT_WIDTH:
border_style = _gtk_css_border_style_value_get(gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BORDER_LEFT_STYLE));
if (border_style == GTK_BORDER_STYLE_NONE || border_style == GTK_BORDER_STYLE_HIDDEN)
return gtk_css_dimension_value_new (0, GTK_CSS_NUMBER);
break;
case GTK_CSS_PROPERTY_OUTLINE_WIDTH:
border_style = _gtk_css_border_style_value_get(gtk_css_style_get_value (style, GTK_CSS_PROPERTY_OUTLINE_STYLE));
if (border_style == GTK_BORDER_STYLE_NONE || border_style == GTK_BORDER_STYLE_HIDDEN)
return gtk_css_dimension_value_new (0, GTK_CSS_NUMBER);
break;
default:
break;
}
switch (number->unit)
{
default:
g_assert_not_reached();
/* fall through */
case GTK_CSS_PERCENT:
/* percentages for font sizes are computed, other percentages aren't */
if (property_id == GTK_CSS_PROPERTY_FONT_SIZE)
return gtk_css_dimension_value_new (number->value / 100.0 *
get_base_font_size (property_id, provider, style, parent_style),
GTK_CSS_PX);
case GTK_CSS_NUMBER:
case GTK_CSS_PX:
case GTK_CSS_DEG:
case GTK_CSS_S:
return _gtk_css_value_ref (number);
case GTK_CSS_PT:
return gtk_css_dimension_value_new (number->value * get_dpi (style) / 72.0,
GTK_CSS_PX);
case GTK_CSS_PC:
return gtk_css_dimension_value_new (number->value * get_dpi (style) / 72.0 * 12.0,
GTK_CSS_PX);
case GTK_CSS_IN:
return gtk_css_dimension_value_new (number->value * get_dpi (style),
GTK_CSS_PX);
case GTK_CSS_CM:
return gtk_css_dimension_value_new (number->value * get_dpi (style) * 0.39370078740157477,
GTK_CSS_PX);
case GTK_CSS_MM:
return gtk_css_dimension_value_new (number->value * get_dpi (style) * 0.039370078740157477,
GTK_CSS_PX);
case GTK_CSS_EM:
return gtk_css_dimension_value_new (number->value * get_dpi (style) / 72.0 *
get_base_font_size (property_id, provider, style, parent_style),
GTK_CSS_PX);
case GTK_CSS_EX:
/* for now we pretend ex is half of em */
return gtk_css_dimension_value_new (number->value * 0.5 * get_dpi (style) / 72.0 *
get_base_font_size (property_id, provider, style, parent_style),
GTK_CSS_PX);
case GTK_CSS_REM:
return gtk_css_dimension_value_new (number->value * get_dpi (style) / 72.0 *
_gtk_css_font_size_get_default (provider),
GTK_CSS_PX);
case GTK_CSS_RAD:
return gtk_css_dimension_value_new (number->value * 360.0 / (2 * G_PI),
GTK_CSS_DEG);
case GTK_CSS_GRAD:
return gtk_css_dimension_value_new (number->value * 360.0 / 400.0,
GTK_CSS_DEG);
case GTK_CSS_TURN:
return gtk_css_dimension_value_new (number->value * 360.0,
GTK_CSS_DEG);
case GTK_CSS_MS:
return gtk_css_dimension_value_new (number->value / 1000.0,
GTK_CSS_S);
}
}
