static void sp_feComponentTransfer_children_modified(SPFeComponentTransfer *sp_componenttransfer)
{
if (sp_componenttransfer->renderer) {
bool set[4] = {false, false, false, false};
SPObject* node = sp_componenttransfer->children;
for(;node;node=node->next){
int i = 4;
SPFeFuncNode *funcNode = SP_FEFUNCNODE(node);
switch (funcNode->channel) {
case SPFeFuncNode::R:
i = 0;
break;
case SPFeFuncNode::G:
i = 1;
break;
case SPFeFuncNode::B:
i = 2;
break;
case SPFeFuncNode::A:
i = 3;
break;
}
if (i == 4) {
g_warning("Unrecognized channel for component transfer.");
break;
}
sp_componenttransfer->renderer->type[i] = ((SPFeFuncNode *) node)->type;
sp_componenttransfer->renderer->tableValues[i] = ((SPFeFuncNode *) node)->tableValues;
sp_componenttransfer->renderer->slope[i] = ((SPFeFuncNode *) node)->slope;
sp_componenttransfer->renderer->intercept[i] = ((SPFeFuncNode *) node)->intercept;
sp_componenttransfer->renderer->amplitude[i] = ((SPFeFuncNode *) node)->amplitude;
sp_componenttransfer->renderer->exponent[i] = ((SPFeFuncNode *) node)->exponent;
sp_componenttransfer->renderer->offset[i] = ((SPFeFuncNode *) node)->offset;
set[i] = true;
}
// Set any types not explicitly set to the identity transform
for(int i=0;i<4;i++) {
if (!set[i]) {
sp_componenttransfer->renderer->type[i] = Inkscape::Filters::COMPONENTTRANSFER_TYPE_IDENTITY;
}
}
}
}
/**
* * Receives update notifications.
* */
static void
sp_fefuncnode_update(SPObject *object, SPCtx *ctx, guint flags)
{
SPFeFuncNode *feFuncNode = SP_FEFUNCNODE(object);
(void)feFuncNode;
if (flags & SP_OBJECT_MODIFIED_FLAG) {
/* do something to trigger redisplay, updates? */
//TODO
//object->readAttr( "azimuth" );
//object->readAttr( "elevation" );
}
if (((SPObjectClass *) feFuncNode_parent_class)->update) {
((SPObjectClass *) feFuncNode_parent_class)->update(object, ctx, flags);
}
}
/**
* Writes its settings to an incoming repr object, if any.
*/
static Inkscape::XML::Node *
sp_fefuncnode_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags)
{
SPFeFuncNode *fefuncnode = SP_FEFUNCNODE(object);
if (!repr) {
repr = object->getRepr()->duplicate(doc);
}
(void)fefuncnode;
/*
TODO: I'm not sure what to do here...
if (fefuncnode->azimuth_set)
sp_repr_set_css_double(repr, "azimuth", fefuncnode->azimuth);
if (fefuncnode->elevation_set)
sp_repr_set_css_double(repr, "elevation", fefuncnode->elevation);*/
if (((SPObjectClass *) feFuncNode_parent_class)->write) {
((SPObjectClass *) feFuncNode_parent_class)->write(object, doc, repr, flags);
}
return repr;
}
/**
* Sets a specific value in the SPFeFuncNode.
*/
static void
sp_fefuncnode_set(SPObject *object, unsigned int key, gchar const *value)
{
SPFeFuncNode *feFuncNode = SP_FEFUNCNODE(object);
Inkscape::Filters::FilterComponentTransferType type;
double read_num;
switch(key) {
case SP_ATTR_TYPE:
type = sp_feComponenttransfer_read_type(value);
if(type != feFuncNode->type) {
feFuncNode->type = type;
object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
break;
case SP_ATTR_TABLEVALUES:
if (value) {
feFuncNode->tableValues = helperfns_read_vector(value);
object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
break;
case SP_ATTR_SLOPE:
read_num = value ? helperfns_read_number(value) : 1;
if (read_num != feFuncNode->slope) {
feFuncNode->slope = read_num;
object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
break;
case SP_ATTR_INTERCEPT:
read_num = value ? helperfns_read_number(value) : 0;
if (read_num != feFuncNode->intercept) {
feFuncNode->intercept = read_num;
object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
break;
case SP_ATTR_AMPLITUDE:
read_num = value ? helperfns_read_number(value) : 1;
if (read_num != feFuncNode->amplitude) {
feFuncNode->amplitude = read_num;
object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
break;
case SP_ATTR_EXPONENT:
read_num = value ? helperfns_read_number(value) : 1;
if (read_num != feFuncNode->exponent) {
feFuncNode->exponent = read_num;
object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
break;
case SP_ATTR_OFFSET:
read_num = value ? helperfns_read_number(value) : 0;
if (read_num != feFuncNode->offset) {
feFuncNode->offset = read_num;
object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
break;
default:
if (((SPObjectClass *) feFuncNode_parent_class)->set)
((SPObjectClass *) feFuncNode_parent_class)->set(object, key, value);
break;
}
}
