Visual.c

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#include <stdlib.h>
#include "errors.h"
#include "Graph.h"
#include "Binary.h"
#include "Colors.h"
#include "Scene.h"
 
#define CLUSTER_LENGTH 2
 
struct Visual {
    struct Graph *graph;
    struct Colors *colors;
    unsigned int modality;
    unsigned int scenes;
};
 
struct Visual *Visual_construct(unsigned int modality, struct Graph *graph, int *error)
{
    struct Visual *this = malloc(sizeof(struct Visual));
 
    if (0 == this) {
        *error = ERROR_NO_MEMORY;
        return 0;
    }
 
    this->graph = graph;
    this->modality = modality;
 
    unsigned int cluster[CLUSTER_LENGTH] = { 0, 0 };
 
    unsigned int clusterStart = Graph_readLastSource(this->graph, modality, error);
 
    if (*error) {
        return 0;
    }
 
    if (0 == clusterStart) {
 
        Graph_addCluster(this->graph, CLUSTER_LENGTH, cluster, error);
 
        if (*error) {
            return 0;
        }
 
        Graph_addEdge(graph, modality, cluster[0], error);
 
        if (*error) {
            return 0;
        }
 
    } else {
 
        Graph_readCluster(this->graph, clusterStart, CLUSTER_LENGTH, cluster, error);
 
        if (*error) {
            return 0;
        }
    }
 
    this->scenes = cluster[0];
 
    struct Binary *colorBinary = Binary_construct(cluster[1], graph, error);
 
    if (*error) {
        return 0;
    }
 
    this->colors = Colors_construct(cluster[1], colorBinary, graph, error);
 
    if (*error) {
        return 0;
    }
 
    Colors_initialize(this->colors, error);
 
    if (*error) {
        return 0;
    }
 
    return this;
}
 
struct Visual *Visual_destruct(struct Visual *this)
{
    if (0 != this) {
        Colors_destruct(this->colors);
        free(this);
    }
 
    return 0;
}
 
struct Scene Visual_addScene(struct Visual *this, int *error)
{
    unsigned int vertex = Graph_addVertex(this->graph, error);
 
    if (*error) {
        struct Scene scene = {0};
        return scene;
    }
 
    Graph_addEdge(this->graph, this->scenes, vertex, error);
 
    if (*error) {
        struct Scene scene = {0};
        return scene;
    }
 
    struct Scene scene = {
        .vertex = vertex, 
        .graph = this->graph,
        .colors = this->colors
    };
 
    return scene;
}