void
gtk_css_style_print (GtkCssStyle *style,
GString *string)
{
guint i;
g_return_if_fail (GTK_IS_CSS_STYLE (style));
g_return_if_fail (string != NULL);
for (i = 0; i < _gtk_css_style_property_get_n_properties (); i++)
{
GtkCssSection *section = gtk_css_style_get_section (style, i);
g_string_append (string, _gtk_style_property_get_name (GTK_STYLE_PROPERTY (_gtk_css_style_property_lookup_by_id (i))));
g_string_append (string, ": ");
_gtk_css_value_print (gtk_css_style_get_value (style, i), string);
g_string_append (string, ";");
if (section)
{
g_string_append (string, " /* ");
_gtk_css_section_print (section, string);
g_string_append (string, " */");
}
g_string_append (string, "\n");
}
}
/**
* _gtk_css_lookup_resolve:
* @lookup: the lookup
* @context: the context the values are resolved for
* @values: a new #GtkCssStyle to be filled with the new properties
*
* Resolves the current lookup into a styleproperties object. This is done
* by converting from the “winning declaration” to the “computed value”.
*
* XXX: This bypasses the notion of “specified value”. If this ever becomes
* an issue, go fix it.
**/
void
_gtk_css_lookup_resolve (GtkCssLookup *lookup,
GtkStyleProviderPrivate *provider,
GtkCssStaticStyle *style,
GtkCssStyle *parent_style)
{
guint i, n;
gtk_internal_return_if_fail (lookup != NULL);
gtk_internal_return_if_fail (GTK_IS_STYLE_PROVIDER_PRIVATE (provider));
gtk_internal_return_if_fail (GTK_IS_CSS_STATIC_STYLE (style));
gtk_internal_return_if_fail (parent_style == NULL || GTK_IS_CSS_STYLE (parent_style));
n = _gtk_css_style_property_get_n_properties ();
for (i = 0; i < n; i++)
{
if (lookup->values[i].value ||
_gtk_bitmask_get (lookup->missing, i))
gtk_css_static_style_compute_value (GTK_CSS_STATIC_STYLE (style),
provider,
parent_style,
i,
lookup->values[i].value,
lookup->values[i].section);
/* else not a relevant property */
}
}
gboolean
gtk_css_style_is_static (GtkCssStyle *style)
{
gtk_internal_return_val_if_fail (GTK_IS_CSS_STYLE (style), TRUE);
return GTK_CSS_STYLE_GET_CLASS (style)->is_static (style);
}
GtkCssSection *
gtk_css_style_get_section (GtkCssStyle *style,
guint id)
{
gtk_internal_return_val_if_fail (GTK_IS_CSS_STYLE (style), NULL);
return GTK_CSS_STYLE_GET_CLASS (style)->get_section (style, id);
}
GtkCssImage *
_gtk_css_image_compute (GtkCssImage *image,
guint property_id,
GtkStyleProviderPrivate *provider,
GtkCssStyle *style,
GtkCssStyle *parent_style)
{
GtkCssImageClass *klass;
g_return_val_if_fail (GTK_IS_CSS_IMAGE (image), NULL);
g_return_val_if_fail (GTK_IS_CSS_STYLE (style), NULL);
g_return_val_if_fail (parent_style == NULL || GTK_IS_CSS_STYLE (parent_style), NULL);
klass = GTK_CSS_IMAGE_GET_CLASS (image);
return klass->compute (image, property_id, provider, style, parent_style);
}
void
gtk_css_style_render_icon_surface (GtkCssStyle *style,
cairo_t *cr,
cairo_surface_t *surface,
double x,
double y)
{
const GtkCssValue *shadows;
cairo_matrix_t matrix, transform_matrix, saved_matrix;
GdkRectangle extents;
g_return_if_fail (GTK_IS_CSS_STYLE (style));
g_return_if_fail (cr != NULL);
g_return_if_fail (surface != NULL);
shadows = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_SHADOW);
if (!get_surface_extents (surface, &extents))
{
/* weird infinite surface, no special magic for you */
cairo_set_source_surface (cr, surface, x, y);
_gtk_css_shadows_value_paint_icon (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_SHADOW), cr);
cairo_paint (cr);
return;
}
cairo_get_matrix (cr, &saved_matrix);
cairo_translate (cr, x + extents.x, y + extents.y);
if (_gtk_css_transform_value_get_matrix (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_TRANSFORM), &transform_matrix))
{
cairo_pattern_t *pattern;
/* XXX: Implement -gtk-icon-transform-origin instead of hardcoding "50% 50%" here */
cairo_matrix_init_translate (&matrix, extents.width / 2, extents.height / 2);
cairo_matrix_multiply (&matrix, &transform_matrix, &matrix);
cairo_matrix_translate (&matrix, - extents.width / 2, - extents.height / 2);
if (cairo_matrix_invert (&matrix) != CAIRO_STATUS_SUCCESS)
{
g_assert_not_reached ();
}
cairo_matrix_translate (&matrix, extents.x, extents.y);
pattern = cairo_pattern_create_for_surface (surface);
cairo_pattern_set_matrix (pattern, &matrix);
cairo_set_source (cr, pattern);
cairo_pattern_destroy (pattern);
_gtk_css_shadows_value_paint_icon (shadows, cr);
cairo_paint (cr);
}
cairo_set_matrix (cr, &saved_matrix);
}
char *
gtk_css_style_to_string (GtkCssStyle *style)
{
GString *string;
g_return_val_if_fail (GTK_IS_CSS_STYLE (style), NULL);
string = g_string_new ("");
gtk_css_style_print (style, string);
return g_string_free (string, FALSE);
}
void
gtk_css_style_render_icon (GtkCssStyle *style,
cairo_t *cr,
double x,
double y,
double width,
double height,
GtkCssImageBuiltinType builtin_type)
{
const GtkCssValue *shadows;
cairo_matrix_t matrix, transform_matrix, saved_matrix;
GtkCssImage *image;
g_return_if_fail (GTK_IS_CSS_STYLE (style));
g_return_if_fail (cr != NULL);
image = _gtk_css_image_value_get_image (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_SOURCE));
if (image == NULL)
return;
cairo_get_matrix (cr, &saved_matrix);
shadows = gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_SHADOW);
cairo_translate (cr, x, y);
if (_gtk_css_transform_value_get_matrix (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_TRANSFORM), &transform_matrix))
{
/* XXX: Implement -gtk-icon-transform-origin instead of hardcoding "50% 50%" here */
cairo_matrix_init_translate (&matrix, width / 2, height / 2);
cairo_matrix_multiply (&matrix, &transform_matrix, &matrix);
cairo_matrix_translate (&matrix, - width / 2, - height / 2);
if (_gtk_css_shadows_value_is_none (shadows))
{
cairo_transform (cr, &matrix);
gtk_css_image_builtin_draw (image, cr, width, height, builtin_type);
}
else
{
cairo_push_group (cr);
cairo_transform (cr, &matrix);
gtk_css_image_builtin_draw (image, cr, width, height, builtin_type);
cairo_pop_group_to_source (cr);
_gtk_css_shadows_value_paint_icon (shadows, cr);
cairo_paint (cr);
}
}
cairo_set_matrix (cr, &saved_matrix);
}
GtkCssStyle *
gtk_css_animated_style_new (GtkCssStyle *base_style,
GtkCssStyle *parent_style,
gint64 timestamp,
GtkStyleProviderPrivate *provider,
GtkCssStyle *previous_style)
{
GtkCssAnimatedStyle *result;
GSList *animations;
gtk_internal_return_val_if_fail (GTK_IS_CSS_STYLE (base_style), NULL);
gtk_internal_return_val_if_fail (parent_style == NULL || GTK_IS_CSS_STYLE (parent_style), NULL);
gtk_internal_return_val_if_fail (GTK_IS_STYLE_PROVIDER (provider), NULL);
gtk_internal_return_val_if_fail (previous_style == NULL || GTK_IS_CSS_STYLE (previous_style), NULL);
if (timestamp == 0)
return g_object_ref (base_style);
animations = NULL;
if (previous_style != NULL)
animations = gtk_css_animated_style_create_css_transitions (animations, base_style, timestamp, previous_style);
animations = gtk_css_animated_style_create_css_animations (animations, base_style, parent_style, timestamp, provider, previous_style);
if (animations == NULL)
return g_object_ref (base_style);
result = g_object_new (GTK_TYPE_CSS_ANIMATED_STYLE, NULL);
result->style = g_object_ref (base_style);
result->current_time = timestamp;
result->animations = animations;
gtk_css_animated_style_apply_animations (result);
return GTK_CSS_STYLE (result);
}
/*
* gtk_css_style_print:
* @style: a #GtkCssStyle
* @string: the #GString to print to
* @indent: level of indentation to use
* @skip_initial: %TRUE to skip properties that have their initial value
*
* Print the @style to @string, in CSS format. Every property is printed
* on a line by itself, indented by @indent spaces. If @skip_initial is
* %TRUE, properties are only printed if their value in @style is different
* from the initial value of the property.
*
* Returns: %TRUE is any properties have been printed
*/
gboolean
gtk_css_style_print (GtkCssStyle *style,
GString *string,
guint indent,
gboolean skip_initial)
{
guint i;
gboolean retval = FALSE;
g_return_val_if_fail (GTK_IS_CSS_STYLE (style), FALSE);
g_return_val_if_fail (string != NULL, FALSE);
for (i = 0; i < _gtk_css_style_property_get_n_properties (); i++)
{
GtkCssSection *section;
GtkCssStyleProperty *prop;
GtkCssValue *value;
const char *name;
section = gtk_css_style_get_section (style, i);
if (!section && skip_initial)
continue;
prop = _gtk_css_style_property_lookup_by_id (i);
name = _gtk_style_property_get_name (GTK_STYLE_PROPERTY (prop));
value = gtk_css_style_get_value (style, i);
g_string_append_printf (string, "%*s%s: ", indent, "", name);
_gtk_css_value_print (value, string);
g_string_append_c (string, ';');
if (section)
{
g_string_append (string, " /* ");
_gtk_css_section_print (section, string);
g_string_append (string, " */");
}
g_string_append_c (string, '\n');
retval = TRUE;
}
return retval;
}
GtkCssStyle *
gtk_css_animated_style_new_advance (GtkCssAnimatedStyle *source,
GtkCssStyle *base,
gint64 timestamp)
{
GtkCssAnimatedStyle *result;
GSList *l, *animations;
gtk_internal_return_val_if_fail (GTK_IS_CSS_ANIMATED_STYLE (source), NULL);
gtk_internal_return_val_if_fail (GTK_IS_CSS_STYLE (base), NULL);
if (timestamp == 0 || timestamp == source->current_time)
return g_object_ref (source->style);
gtk_internal_return_val_if_fail (timestamp > source->current_time, NULL);
animations = NULL;
for (l = source->animations; l; l = l->next)
{
GtkStyleAnimation *animation = l->data;
if (_gtk_style_animation_is_finished (animation))
continue;
animation = _gtk_style_animation_advance (animation, timestamp);
animations = g_slist_prepend (animations, animation);
}
animations = g_slist_reverse (animations);
if (animations == NULL)
return g_object_ref (source->style);
result = g_object_new (GTK_TYPE_CSS_ANIMATED_STYLE, NULL);
result->style = g_object_ref (base);
result->current_time = timestamp;
result->animations = animations;
gtk_css_animated_style_apply_animations (result);
return GTK_CSS_STYLE (result);
}
void
gtk_css_style_render_icon_get_extents (GtkCssStyle *style,
GdkRectangle *extents,
gint x,
gint y,
gint width,
gint height)
{
cairo_matrix_t transform_matrix, matrix;
GtkBorder border;
GdkRectangle rect;
g_return_if_fail (GTK_IS_CSS_STYLE (style));
g_return_if_fail (extents != NULL);
extents->x = x;
extents->y = y;
extents->width = width;
extents->height = height;
if (!_gtk_css_transform_value_get_matrix (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_TRANSFORM), &transform_matrix))
return;
cairo_matrix_init_translate (&matrix, x + width / 2.0, y + height / 2.0);
cairo_matrix_multiply (&matrix, &transform_matrix, &matrix);
/* need to round to full pixels */
rect.x = - (width + 1) / 2;
rect.y = - (height + 1) / 2;
rect.width = (width + 1) & ~1;
rect.height = (height + 1) & ~1;
gtk_cairo_rectangle_transform (extents, &rect, &matrix);
_gtk_css_shadows_value_get_extents (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_ICON_SHADOW), &border);
extents->x -= border.left;
extents->y -= border.top;
extents->width += border.left + border.right;
extents->height += border.top + border.bottom;
}