GLSLFileTreeElement.java

/*
 *     Copyright 2010 Jean-Paul Balabanian and Yngve Devik Hammersland
 *
 *     This file is part of glsl4idea.
 *
 *     Glsl4idea is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU Lesser General Public License as
 *     published by the Free Software Foundation, either version 3 of
 *     the License, or (at your option) any later version.
 *
 *     Glsl4idea is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU Lesser General Public License for more details.
 *
 *     You should have received a copy of the GNU General Public License
 *     along with glsl4idea.  If not, see <http://www.gnu.org/licenses/>.
 */

package glslplugin.structureview;

import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import glslplugin.lang.elements.GLSLTypedElement;
import glslplugin.lang.elements.declarations.*;

import java.util.ArrayList;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;

class GLSLFileTreeElement extends GLSLStructureViewTreeElement<PsiFile> {

    public GLSLFileTreeElement(PsiFile file) {
        super(file);
    }

    protected GLSLPresentation createPresentation(PsiFile file) {
        return GLSLPresentation.createFilePresentation(file.getName());
    }

    protected void createChildren(PsiFile file) {
        Set<GLSLTypeDefinition> definitions = new LinkedHashSet<GLSLTypeDefinition>();
        List<GLSLVariableDeclaration> variableDeclarations = new ArrayList<GLSLVariableDeclaration>();
        List<GLSLFunctionDeclaration> functions = new ArrayList<GLSLFunctionDeclaration>();

        PsiElement[] baseNodes = file.getChildren();
        for (PsiElement baseNode : baseNodes) {
            if (baseNode instanceof GLSLVariableDeclaration) {
                final GLSLVariableDeclaration declaration = (GLSLVariableDeclaration) baseNode;
                //TODO Check if this accounts for shortcomings of getTypeSpecifierNode() (probably not)
                final GLSLTypeSpecifier typeSpecifier = declaration.getTypeSpecifierNode();

                if (typeSpecifier != null) {
                    final GLSLTypedElement typedef = typeSpecifier.getTypeDefinition();
                    if (typedef != null) {
                        final GLSLTypeDefinition definition = (GLSLTypeDefinition) typedef;
                        definitions.add(definition);
                    }

                    if (declaration.getDeclarators().length > 0) {
                        variableDeclarations.add(declaration);
                    }
                }
            } else if (baseNode instanceof GLSLFunctionDeclaration) {
                functions.add((GLSLFunctionDeclaration) baseNode);
            }
        }

        for (GLSLTypeDefinition definition : definitions) {
            addChild(new GLSLStructTreeElement(definition));
        }

        for (GLSLVariableDeclaration declaration : variableDeclarations) {
            for (GLSLDeclarator declarator : declaration.getDeclarators()) {
                addChild(new GLSLDeclaratorTreeElement(declarator));
            }
        }

        for (GLSLFunctionDeclaration function : functions) {
            addChild(new GLSLFunctionTreeElement((GLSLFunctionDeclarationImpl) function));
        }
    }
}