static GtkBitmask *
gtk_css_transition_set_values (GtkStyleAnimation *animation,
GtkBitmask *changed,
gint64 for_time_us,
GtkCssComputedValues *values)
{
GtkCssTransition *transition = GTK_CSS_TRANSITION (animation);
GtkCssValue *value;
double progress;
if (transition->start_time >= for_time_us)
value = _gtk_css_value_ref (transition->start);
else if (transition->end_time <= for_time_us)
value = _gtk_css_value_ref (transition->end);
else
{
progress = (double) (for_time_us - transition->start_time) / (transition->end_time - transition->start_time);
progress = _gtk_css_ease_value_transform (transition->ease, progress);
value = _gtk_css_value_transition (transition->start,
transition->end,
progress);
if (value == NULL)
value = _gtk_css_value_ref (transition->end);
}
_gtk_css_computed_values_set_value (values, transition->property, value, NULL);
_gtk_css_value_unref (value);
return _gtk_bitmask_set (changed, transition->property, TRUE);
}
static GtkCssValue *
gtk_css_value_bg_size_transition (GtkCssValue *start,
GtkCssValue *end,
guint property_id,
double progress)
{
GtkCssValue *x, *y;
if (start->cover)
return end->cover ? _gtk_css_value_ref (end) : NULL;
if (start->contain)
return end->contain ? _gtk_css_value_ref (end) : NULL;
if ((start->x != NULL) ^ (end->x != NULL) ||
(start->y != NULL) ^ (end->y != NULL))
return NULL;
if (start->x)
{
x = _gtk_css_value_transition (start->x, end->x, property_id, progress);
if (x == NULL)
return NULL;
}
else
x = NULL;
if (start->y)
{
y = _gtk_css_value_transition (start->y, end->y, property_id, progress);
if (y == NULL)
{
_gtk_css_value_unref (x);
return NULL;
}
}
else
y = NULL;
return _gtk_css_bg_size_value_new (x, y);
}
static GtkCssImage *
gtk_css_image_radial_transition (GtkCssImage *start_image,
GtkCssImage *end_image,
guint property_id,
double progress)
{
GtkCssImageRadial *start, *end, *result;
guint i;
start = GTK_CSS_IMAGE_RADIAL (start_image);
if (end_image == NULL)
return GTK_CSS_IMAGE_CLASS (_gtk_css_image_radial_parent_class)->transition (start_image, end_image, property_id, progress);
if (!GTK_IS_CSS_IMAGE_RADIAL (end_image))
return GTK_CSS_IMAGE_CLASS (_gtk_css_image_radial_parent_class)->transition (start_image, end_image, property_id, progress);
end = GTK_CSS_IMAGE_RADIAL (end_image);
if (start->repeating != end->repeating ||
start->stops->len != end->stops->len ||
start->size != end->size ||
start->circle != end->circle)
return GTK_CSS_IMAGE_CLASS (_gtk_css_image_radial_parent_class)->transition (start_image, end_image, property_id, progress);
result = g_object_new (GTK_TYPE_CSS_IMAGE_RADIAL, NULL);
result->repeating = start->repeating;
result->circle = start->circle;
result->size = start->size;
result->position = _gtk_css_value_transition (start->position, end->position, property_id, progress);
if (result->position == NULL)
goto fail;
if (start->sizes[0] && end->sizes[0])
{
result->sizes[0] = _gtk_css_value_transition (start->sizes[0], end->sizes[0], property_id, progress);
if (result->sizes[0] == NULL)
goto fail;
}
else
result->sizes[0] = 0;
if (start->sizes[1] && end->sizes[1])
{
result->sizes[1] = _gtk_css_value_transition (start->sizes[1], end->sizes[1], property_id, progress);
if (result->sizes[1] == NULL)
goto fail;
}
else
result->sizes[1] = 0;
for (i = 0; i < start->stops->len; i++)
{
GtkCssImageRadialColorStop stop, *start_stop, *end_stop;
start_stop = &g_array_index (start->stops, GtkCssImageRadialColorStop, i);
end_stop = &g_array_index (end->stops, GtkCssImageRadialColorStop, i);
if ((start_stop->offset != NULL) != (end_stop->offset != NULL))
goto fail;
if (start_stop->offset == NULL)
{
stop.offset = NULL;
}
else
{
stop.offset = _gtk_css_value_transition (start_stop->offset,
end_stop->offset,
property_id,
progress);
if (stop.offset == NULL)
goto fail;
}
stop.color = _gtk_css_value_transition (start_stop->color,
end_stop->color,
property_id,
progress);
if (stop.color == NULL)
{
if (stop.offset)
_gtk_css_value_unref (stop.offset);
goto fail;
}
g_array_append_val (result->stops, stop);
}
return GTK_CSS_IMAGE (result);
fail:
g_object_unref (result);
return GTK_CSS_IMAGE_CLASS (_gtk_css_image_radial_parent_class)->transition (start_image, end_image, property_id, progress);
}
static GtkCssValue *
gtk_css_value_shadows_transition (GtkCssValue *start,
GtkCssValue *end,
guint property_id,
double progress)
{
guint i, len;
GtkCssValue **values;
/* catches the important case of 2 none values */
if (start == end)
return _gtk_css_value_ref (start);
if (start->len > end->len)
len = start->len;
else
len = end->len;
values = g_newa (GtkCssValue *, len);
for (i = 0; i < MIN (start->len, end->len); i++)
{
values[i] = _gtk_css_value_transition (start->values[i], end->values[i], property_id, progress);
if (values[i] == NULL)
{
while (i--)
_gtk_css_value_unref (values[i]);
return NULL;
}
}
if (start->len > end->len)
{
for (; i < len; i++)
{
GtkCssValue *fill = _gtk_css_shadow_value_new_for_transition (start->values[i]);
values[i] = _gtk_css_value_transition (start->values[i], fill, property_id, progress);
_gtk_css_value_unref (fill);
if (values[i] == NULL)
{
while (i--)
_gtk_css_value_unref (values[i]);
return NULL;
}
}
}
else
{
for (; i < len; i++)
{
GtkCssValue *fill = _gtk_css_shadow_value_new_for_transition (end->values[i]);
values[i] = _gtk_css_value_transition (fill, end->values[i], property_id, progress);
_gtk_css_value_unref (fill);
if (values[i] == NULL)
{
while (i--)
_gtk_css_value_unref (values[i]);
return NULL;
}
}
}
return gtk_css_shadows_value_new (values, len);
}
static GtkCssImage *
gtk_css_image_linear_transition (GtkCssImage *start_image,
GtkCssImage *end_image,
guint property_id,
double progress)
{
GtkCssImageLinear *start, *end, *result;
guint i;
start = GTK_CSS_IMAGE_LINEAR (start_image);
if (end_image == NULL)
return GTK_CSS_IMAGE_CLASS (_gtk_css_image_linear_parent_class)->transition (start_image, end_image, property_id, progress);
if (!GTK_IS_CSS_IMAGE_LINEAR (end_image))
return GTK_CSS_IMAGE_CLASS (_gtk_css_image_linear_parent_class)->transition (start_image, end_image, property_id, progress);
end = GTK_CSS_IMAGE_LINEAR (end_image);
if ((start->repeating != end->repeating)
|| (start->stops->len != end->stops->len))
return GTK_CSS_IMAGE_CLASS (_gtk_css_image_linear_parent_class)->transition (start_image, end_image, property_id, progress);
result = g_object_new (GTK_TYPE_CSS_IMAGE_LINEAR, NULL);
result->repeating = start->repeating;
if (start->side != end->side)
goto fail;
result->side = start->side;
if (result->side == 0)
result->angle = _gtk_css_value_transition (start->angle, end->angle, property_id, progress);
if (result->angle == NULL)
goto fail;
for (i = 0; i < start->stops->len; i++)
{
GtkCssImageLinearColorStop stop, *start_stop, *end_stop;
start_stop = &g_array_index (start->stops, GtkCssImageLinearColorStop, i);
end_stop = &g_array_index (end->stops, GtkCssImageLinearColorStop, i);
if ((start_stop->offset != NULL) != (end_stop->offset != NULL))
goto fail;
if (start_stop->offset == NULL)
{
stop.offset = NULL;
}
else
{
stop.offset = _gtk_css_value_transition (start_stop->offset,
end_stop->offset,
property_id,
progress);
if (stop.offset == NULL)
goto fail;
}
stop.color = _gtk_css_value_transition (start_stop->color,
end_stop->color,
property_id,
progress);
if (stop.color == NULL)
{
if (stop.offset)
_gtk_css_value_unref (stop.offset);
goto fail;
}
g_array_append_val (result->stops, stop);
}
return GTK_CSS_IMAGE (result);
fail:
g_object_unref (result);
return GTK_CSS_IMAGE_CLASS (_gtk_css_image_linear_parent_class)->transition (start_image, end_image, property_id, progress);
}
