DomElement DomElement::get_next_sibling_element() const
{
DomNode node = get_next_sibling();
while (!node.is_null() && !node.is_element())
node = node.get_next_sibling();
return node.to_element();
}
void TexturePacker::process_resource(Canvas &canvas, Resource &item_resource, std::vector<Subtexture> &packed_sub_textures, std::map<Texture, std::string> &generated_texture_filenames, int &generated_texture_index, const std::string &image_pathname )
{
// Found a sprite resource, lets modify its content!
Resource resource = item_resource;
// Iterate through all nodes, and remove all previous image tags
DomElement &element = resource.get_element();
DomNode cur = element.get_first_child();
while (!cur.is_null())
{
DomNode next = cur.get_next_sibling();
DomNode::NodeType nodeType = (DomNode::NodeType)cur.get_node_type();
// Only remove the <image> tag, as we want to keep the other sprite attributes
if (cur.get_node_name() == "image")
element.remove_child(cur);
cur = next;
}
// Add new image tag to resource DOM
std::vector<Subtexture>::size_type index, size;
size = packed_sub_textures.size();
for(index = 0; index < size; ++index)
{
Subtexture subtexture = packed_sub_textures[index];
// Try to find out if we already have created a texture-on-disk for this subtexture
std::string texture_filename;
Texture2D texture = subtexture.get_texture();
std::map<Texture, std::string>::iterator it;
it = generated_texture_filenames.find(texture);
if(it == generated_texture_filenames.end())
{
// Texture not found, generate a filename and dump texture to disk
texture_filename = string_format("texture%1.png", ++generated_texture_index);
PNGProvider::save(texture.get_pixeldata(canvas), image_pathname + texture_filename);
generated_texture_filenames[texture] = texture_filename;
}
else
{
// Previously dumped textures, lets reuse the filename
texture_filename = (*it).second;
}
// Add <grid> DOM element
DomElement new_grid_element = element.get_owner_document().create_element("grid");
new_grid_element.set_attribute("pos", string_format("%1,%2", subtexture.get_geometry().left + last_border_size, subtexture.get_geometry().top + last_border_size));
new_grid_element.set_attribute("size", string_format("%1,%2", subtexture.get_geometry().get_width()- last_border_size*2, subtexture.get_geometry().get_height()- last_border_size*2));
// Add <image> DOM element
DomElement new_image_element = element.get_owner_document().create_element("image");
new_image_element.set_attribute("file", texture_filename);
new_image_element.append_child(new_grid_element);
// Add <image> element under <sprite> element
element.append_child(new_image_element);
}
}
DomNode DomNode::named_item(const DomString &name) const
{
DomNode node = get_first_child();
while (node.is_null() == false)
{
if (node.get_node_name() == name) return node;
node = node.get_next_sibling();
}
return DomNode();
}
DomNodeList DomNode::get_child_nodes() const
{
DomNodeList list;
DomNode node = get_first_child();
while (!node.is_null())
{
list.add_item(node);
node = node.get_next_sibling();
}
return list;
}
DomElement DomDocument::get_document_element()
{
DomNode cur = get_first_child();
while (!cur.is_null())
{
if (cur.is_element())
return cur.to_element();
cur = cur.get_next_sibling();
}
return DomElement();
}
DomNode DomNode::named_item_ns(
const DomString &namespace_uri,
const DomString &local_name) const
{
DomNode node = get_first_child();
while (node.is_null() == false)
{
if (node.get_namespace_uri() == namespace_uri && node.get_local_name() == local_name)
return node;
node = node.get_next_sibling();
}
return DomNode();
}
std::string DomElement::get_text() const
{
std::string str;
if (has_child_nodes() == false)
return str;
DomNode cur = get_first_child();
while (!cur.is_null())
{
if (cur.is_text() || cur.is_cdata_section())
str.append(cur.get_node_value());
if (cur.is_element())
str.append(cur.to_element().get_text());
cur = cur.get_next_sibling();
}
return str;
}
ProgramObject ProgramObject::load(
GraphicContext &gc,
const std::string &resource_id,
const XMLResourceDocument &resources)
{
ProgramObject program_object(gc);
XMLResourceNode resource = resources.get_resource(resource_id);
DomNode node = resource.get_element().get_first_child();
while (!node.is_null())
{
if (node.is_element())
{
DomElement element = node.to_element();
if (element.get_tag_name() == "shader")
{
ShaderObject shader = ShaderObject::load(gc, element.get_attribute("name"), resources);
program_object.attach(shader);
}
else if (element.get_tag_name() == "bind-attribute")
{
program_object.bind_attribute_location(
StringHelp::text_to_int(element.get_attribute("index")),
element.get_attribute("name"));
}
}
node = node.get_next_sibling();
}
if (!resource.get_element().get_attribute("shader").empty())
{
ShaderObject shader = ShaderObject::load(gc, resource.get_element().get_attribute("shader"), resources);
program_object.attach(shader);
}
if (resource.get_element().get_attribute("link", "true") == "true")
if(!program_object.link())
throw Exception(string_format("Unable to link program object: %1", program_object.get_info_log()));
return program_object;
}
DomNode DomDocument::import_node(const DomNode &node, bool deep)
{
DomNode imported_node;
switch (node.get_node_type())
{
case NULL_NODE:
return imported_node;
case ELEMENT_NODE:
imported_node = create_element_ns(node.get_namespace_uri(), node.get_node_name());
break;
case ATTRIBUTE_NODE:
imported_node = create_attribute_ns(node.get_namespace_uri(), node.get_node_name());
imported_node.set_node_value(node.get_node_value());
break;
case TEXT_NODE:
imported_node = create_text_node(node.get_node_value());
break;
case CDATA_SECTION_NODE:
imported_node = create_cdata_section(node.get_node_value());
break;
case ENTITY_REFERENCE_NODE:
imported_node = create_entity_reference(node.get_node_name());
break;
case ENTITY_NODE:
return imported_node;
case PROCESSING_INSTRUCTION_NODE:
imported_node = create_processing_instruction(node.to_processing_instruction().get_target(), node.to_processing_instruction().get_data());
break;
case COMMENT_NODE:
imported_node = create_comment(node.get_node_value());
break;
case DOCUMENT_NODE:
imported_node = create_document_fragment();
break;
case DOCUMENT_TYPE_NODE:
return imported_node;
case DOCUMENT_FRAGMENT_NODE:
imported_node = create_document_fragment();
break;
case NOTATION_NODE:
return imported_node;
}
if (node.is_element())
{
DomElement import_element = imported_node.to_element();
DomNamedNodeMap node_attributes = node.get_attributes();
int size = node_attributes.get_length();
for (int index = 0; index < size; index++)
{
DomNode attr = node_attributes.item(index);
import_element.set_attribute_node_ns(import_node(attr, deep).to_attr());
}
}
if (deep)
{
DomNode cur = node.get_first_child();
while (!cur.is_null())
{
imported_node.append_child(import_node(cur, true));
cur = cur.get_next_sibling();
}
}
return imported_node;
}
XMLResourceNode XMLResourceDocument::create_resource(const std::string &resource_id, const std::string &type)
{
if (resource_exists(resource_id))
throw Exception(string_format("Resource %1 already exists", resource_id));
std::vector<std::string> path_elements = PathHelp::split_basepath(resource_id);
std::string name = PathHelp::get_filename(resource_id);
// Walk tree as deep as we can get:
DomNode parent = impl->document.get_document_element();
DomNode cur = parent.get_first_child();
auto path_it = path_elements.begin();
while (!cur.is_null() && path_it != path_elements.end())
{
if (cur.is_element() &&
cur.get_namespace_uri() == impl->ns_resources &&
cur.get_local_name() == "section")
{
DomElement element = cur.to_element();
std::string name = element.get_attribute_ns(impl->ns_resources, "name");
if (name == *path_it)
{
++path_it;
parent = cur;
cur = cur.get_first_child();
continue;
}
}
cur = cur.get_next_sibling();
}
// Create any missing parent nodes:
std::string prefix = parent.get_prefix();
while (path_it != path_elements.end())
{
DomElement section;
if (prefix.empty())
{
section = impl->document.create_element_ns( impl->ns_resources, (*path_it) );
}
else
{
section = impl->document.create_element_ns( impl->ns_resources,(prefix + ":" + *path_it));
}
parent.append_child(section);
parent = section;
++path_it;
}
// Create node:
DomElement resource_node;
if (prefix.empty())
{
resource_node = impl->document.create_element_ns( impl->ns_resources, (type));
}
else
{
resource_node = impl->document.create_element_ns( impl->ns_resources,(prefix + ":" + type));
}
resource_node.set_attribute_ns(
impl->ns_resources,
prefix.empty() ? "name" : (prefix + ":name"),
name);
parent.append_child(resource_node);
// Create resource:
impl->resources[resource_id] = XMLResourceNode(resource_node, *this);
return impl->resources[resource_id];
}
