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New Session class to contain the list of sources. Loading and Saving of

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session files in XML. Verified deletion of Nodes, Groups and Sources.
This commit is contained in:
brunoherbelin
2020-05-02 13:26:57 +02:00
parent bdb092dddb
commit cc03e7b7cd
33 changed files with 1033 additions and 377 deletions
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184
SessionVisitor.cpp
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@@ -4,10 +4,10 @@
#include "Scene.h"
#include "Primitives.h"
#include "Mesh.h"
#include "Source.h"
#include "ImageShader.h"
#include "ImageProcessingShader.h"
#include "MediaPlayer.h"
#include "GstToolkit.h"
#include <iostream>
@@ -15,31 +15,45 @@
using namespace tinyxml2;
SessionVisitor::SessionVisitor(tinyxml2::XMLDocument *doc, tinyxml2::XMLElement *root) : Visitor()
SessionVisitor::SessionVisitor(tinyxml2::XMLDocument *doc,
tinyxml2::XMLElement *root,
bool recursive) : Visitor(), xmlCurrent_(root), recursive_(recursive)
{
if (doc == nullptr)
xmlDoc_ = new XMLDocument;
else
xmlDoc_ = doc;
}
xmlCurrent_ = root;
tinyxml2::XMLElement *SessionVisitor::NodeToXML(Node &n, tinyxml2::XMLDocument *doc)
{
XMLElement *newelement = doc->NewElement("Node");
newelement->SetAttribute("visible", n.visible_);
XMLElement *scale = doc->NewElement("scale");
scale->InsertEndChild( XMLElementFromGLM(doc, n.scale_) );
newelement->InsertEndChild(scale);
XMLElement *translation = doc->NewElement("translation");
translation->InsertEndChild( XMLElementFromGLM(doc, n.translation_) );
newelement->InsertEndChild(translation);
XMLElement *rotation = doc->NewElement("rotation");
rotation->InsertEndChild( XMLElementFromGLM(doc, n.rotation_) );
newelement->InsertEndChild(rotation);
return newelement;
}
void SessionVisitor::visit(Node &n)
{
XMLElement *newelement = xmlDoc_->NewElement("Node");
newelement->SetAttribute("visible", n.visible_);
XMLElement *scale = XMLElementFromGLM(xmlDoc_, n.scale_);
newelement->InsertEndChild(scale);
XMLElement *translation = XMLElementFromGLM(xmlDoc_, n.translation_);
newelement->InsertEndChild(translation);
XMLElement *rotation = XMLElementFromGLM(xmlDoc_, n.rotation_);
newelement->InsertEndChild(rotation);
XMLElement *newelement = NodeToXML(n, xmlDoc_);
// insert into hierarchy
xmlCurrent_->InsertEndChild(newelement);
xmlCurrent_ = newelement; // parent for next visits
// parent for next visits
xmlCurrent_ = newelement;
}
void SessionVisitor::visit(Group &n)
@@ -47,12 +61,14 @@ void SessionVisitor::visit(Group &n)
// Node of a different type
xmlCurrent_->SetAttribute("type", "Group");
// loop over members of a group
XMLElement *group = xmlCurrent_;
for (NodeSet::iterator node = n.begin(); node != n.end(); node++) {
(*node)->accept(*this);
// revert to group as current
xmlCurrent_ = group;
if (recursive_) {
// loop over members of a group
XMLElement *group = xmlCurrent_;
for (NodeSet::iterator node = n.begin(); node != n.end(); node++) {
(*node)->accept(*this);
// revert to group as current
xmlCurrent_ = group;
}
}
}
@@ -62,12 +78,14 @@ void SessionVisitor::visit(Switch &n)
xmlCurrent_->SetAttribute("type", "Switch");
xmlCurrent_->SetAttribute("active", n.getIndexActiveChild());
// loop over members of the group
XMLElement *group = xmlCurrent_;
for (NodeSet::iterator node = n.begin(); node != n.end(); node++) {
(*node)->accept(*this);
// revert to group as current
xmlCurrent_ = group;
if (recursive_) {
// loop over members of the group
XMLElement *group = xmlCurrent_;
for (NodeSet::iterator node = n.begin(); node != n.end(); node++) {
(*node)->accept(*this);
// revert to group as current
xmlCurrent_ = group;
}
}
}
@@ -89,15 +107,17 @@ void SessionVisitor::visit(Primitive &n)
// Node of a different type
xmlCurrent_->SetAttribute("type", "Primitive");
// go over members of a primitive
XMLElement *Primitive = xmlCurrent_;
if (recursive_) {
// go over members of a primitive
XMLElement *Primitive = xmlCurrent_;
xmlCurrent_ = xmlDoc_->NewElement("Shader");
n.shader()->accept(*this);
Primitive->InsertEndChild(xmlCurrent_);
xmlCurrent_ = xmlDoc_->NewElement("Shader");
n.shader()->accept(*this);
Primitive->InsertEndChild(xmlCurrent_);
// revert to primitive as current
xmlCurrent_ = Primitive;
// revert to primitive as current
xmlCurrent_ = Primitive;
}
}
@@ -137,16 +157,19 @@ void SessionVisitor::visit(MediaPlayer &n)
newelement->SetAttribute("play", n.isPlaying());
newelement->SetAttribute("loop", (int) n.loop());
newelement->SetAttribute("speed", n.playSpeed());
// TODO Segments
xmlCurrent_->InsertEndChild(newelement);
}
void SessionVisitor::visit(Shader &n)
{
// Shader of a simple type
xmlCurrent_->SetAttribute("type", "DefaultShader");
xmlCurrent_->SetAttribute("type", "Shader");
XMLElement *color = XMLElementFromGLM(xmlDoc_, n.color);
color->SetAttribute("type", "RGBA");
XMLElement *color = xmlDoc_->NewElement("color");
color->InsertEndChild( XMLElementFromGLM(xmlDoc_, n.color) );
xmlCurrent_->InsertEndChild(color);
XMLElement *blend = xmlDoc_->NewElement("blending");
@@ -160,10 +183,10 @@ void SessionVisitor::visit(ImageShader &n)
// Shader of a textured type
xmlCurrent_->SetAttribute("type", "ImageShader");
XMLElement *filter = xmlDoc_->NewElement("uniforms");
filter->SetAttribute("stipple", n.stipple);
filter->SetAttribute("mask", n.mask);
xmlCurrent_->InsertEndChild(filter);
XMLElement *uniforms = xmlDoc_->NewElement("uniforms");
uniforms->SetAttribute("stipple", n.stipple);
uniforms->SetAttribute("mask", n.mask);
xmlCurrent_->InsertEndChild(uniforms);
}
@@ -180,21 +203,21 @@ void SessionVisitor::visit(ImageProcessingShader &n)
filter->SetAttribute("threshold", n.threshold);
filter->SetAttribute("lumakey", n.lumakey);
filter->SetAttribute("nbColors", n.nbColors);
filter->SetAttribute("invertMode", n.invert);
filter->SetAttribute("invert", n.invert);
filter->SetAttribute("chromadelta", n.chromadelta);
filter->SetAttribute("filter", n.filterid);
filter->SetAttribute("filterid", n.filterid);
xmlCurrent_->InsertEndChild(filter);
XMLElement *gamma = XMLElementFromGLM(xmlDoc_, n.gamma);
gamma->SetAttribute("type", "gamma");
XMLElement *gamma = xmlDoc_->NewElement("gamma");
gamma->InsertEndChild( XMLElementFromGLM(xmlDoc_, n.gamma) );
xmlCurrent_->InsertEndChild(gamma);
XMLElement *levels = XMLElementFromGLM(xmlDoc_, n.levels);
levels->SetAttribute("type", "levels");
XMLElement *levels = xmlDoc_->NewElement("levels");
levels->InsertEndChild( XMLElementFromGLM(xmlDoc_, n.levels) );
xmlCurrent_->InsertEndChild(levels);
XMLElement *chromakey = XMLElementFromGLM(xmlDoc_, n.chromakey);
chromakey->SetAttribute("type", "chromakey");
XMLElement *chromakey = xmlDoc_->NewElement("chromakey");
chromakey->InsertEndChild( XMLElementFromGLM(xmlDoc_, n.chromakey) );
xmlCurrent_->InsertEndChild(chromakey);
}
@@ -204,8 +227,8 @@ void SessionVisitor::visit(LineStrip &n)
// Node of a different type
xmlCurrent_->SetAttribute("type", "LineStrip");
XMLElement *color = XMLElementFromGLM(xmlDoc_, n.getColor());
color->SetAttribute("type", "RGBA");
XMLElement *color = xmlDoc_->NewElement("color");
color->InsertEndChild( XMLElementFromGLM(xmlDoc_, n.getColor()) );
xmlCurrent_->InsertEndChild(color);
std::vector<glm::vec3> points = n.getPoints();
@@ -229,8 +252,8 @@ void SessionVisitor::visit(LineCircle &n)
// Node of a different type
xmlCurrent_->SetAttribute("type", "LineCircle");
XMLElement *color = XMLElementFromGLM(xmlDoc_, n.getColor());
color->SetAttribute("type", "RGBA");
XMLElement *color = xmlDoc_->NewElement("color");
color->InsertEndChild( XMLElementFromGLM(xmlDoc_, n.getColor()) );
xmlCurrent_->InsertEndChild(color);
}
@@ -250,30 +273,63 @@ void SessionVisitor::visit(Mesh &n)
xmlCurrent_->InsertEndChild(tex);
}
void SessionVisitor::visit(Frame &n)
{
// Node of a different type
xmlCurrent_->SetAttribute("type", "Frame");
XMLElement *color = xmlDoc_->NewElement("color");
color->InsertEndChild( XMLElementFromGLM(xmlDoc_, n.color) );
xmlCurrent_->InsertEndChild(color);
}
void SessionVisitor::visit(Scene &n)
{
std::string s = "Capture time " + GstToolkit::date_time_string();
XMLComment *pComment = xmlDoc_->NewComment(s.c_str());
xmlDoc_->InsertEndChild(pComment);
XMLElement *xmlRoot = xmlDoc_->NewElement("Scene");
xmlDoc_->InsertEndChild(xmlRoot);
// start recursive traverse from root node
recursive_ = true;
xmlCurrent_ = xmlRoot;
n.root()->accept(*this);
}
void SessionVisitor::save(std::string filename)
void SessionVisitor::visit (Source& s)
{
XMLDeclaration *pDec = xmlDoc_->NewDeclaration();
xmlDoc_->InsertFirstChild(pDec);
XMLElement *sourceNode = xmlDoc_->NewElement( "Source" );
sourceNode->SetAttribute("name", s.name().c_str() );
std::string s = "Save time " + GstToolkit::date_time_string();
XMLComment *pComment = xmlDoc_->NewComment(s.c_str());
xmlDoc_->InsertEndChild(pComment);
// insert into hierarchy
xmlCurrent_->InsertEndChild(sourceNode);
// save session
XMLError eResult = xmlDoc_->SaveFile(filename.c_str());
XMLCheckResult(eResult);
xmlCurrent_ = xmlDoc_->NewElement( "Mixing" );
sourceNode->InsertEndChild(xmlCurrent_);
s.node(View::MIXING)->accept(*this);
xmlCurrent_ = xmlDoc_->NewElement( "Geometry" );
sourceNode->InsertEndChild(xmlCurrent_);
s.node(View::GEOMETRY)->accept(*this);
xmlCurrent_ = xmlDoc_->NewElement( "Blending" );
sourceNode->InsertEndChild(xmlCurrent_);
s.blendingShader()->accept(*this);
xmlCurrent_ = xmlDoc_->NewElement( "ImageProcessing" );
sourceNode->InsertEndChild(xmlCurrent_);
s.processingShader()->accept(*this);
xmlCurrent_ = sourceNode; // parent for next visits (other subtypes of Source)
}
void SessionVisitor::visit (MediaSource& s)
{
xmlCurrent_->SetAttribute("type", "MediaSource");
XMLElement *uri = xmlDoc_->NewElement("uri");
xmlCurrent_->InsertEndChild(uri);
XMLText *text = xmlDoc_->NewText( s.uri().c_str() );
uri->InsertEndChild( text );
s.mediaplayer()->accept(*this);
}