src/primitives.h

/*
 *  LDForge: LDraw parts authoring CAD
 *  Copyright (C) 2013 - 2016 Teemu Piippo
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#pragma once
#include "main.h"
#include "basics.h"
#include <QRegExp>
#include <QDialog>

class LDDocument;
class Ui_MakePrimUI;
class PrimitiveCategory;

struct Primitive
{
	QString				name;
	QString				title;
	PrimitiveCategory*	category;
};

class PrimitiveCategory : public QObject
{
	Q_OBJECT

public:
	enum RegexType
	{
		EFilenameRegex,
		ETitleRegex
	};

	struct RegexEntry
	{
		QRegExp		regex;
		RegexType	type;
	};

	QList<RegexEntry> regexes;
	QList<Primitive> prims;

	explicit PrimitiveCategory (QString name, QObject* parent = 0);
	bool isValidToInclude();
	QString name() const;

	static void loadCategories();
	static void populateCategories();

private:
	QString m_name;
};

//
// Worker object that scans the primitives folder for primitives and
// builds an index of them.
//
class PrimitiveScanner : public QObject
{
	Q_OBJECT

public:
	explicit			PrimitiveScanner (QObject* parent = 0);
	virtual				~PrimitiveScanner();
	static void			start();

public slots:
	void				work();

signals:
	void				starting (int num);
	void				workDone();
	void				update (int i);

private:
	QList<Primitive>	m_prims;
	QStringList			m_files;
	int					m_i;
	int					m_baselen;
};

extern QList<PrimitiveCategory*> g_PrimitiveCategories;

void LoadPrimitives();
PrimitiveScanner* ActivePrimitiveScanner();

enum PrimitiveType
{
	Circle,
	Cylinder,
	Disc,
	DiscNeg,
	Ring,
	Cone,
};

class PrimitivePrompt : public QDialog
{
	Q_OBJECT

public:
	explicit PrimitivePrompt (QWidget* parent = nullptr, Qt::WindowFlags f = 0);
	virtual ~PrimitivePrompt();
	Ui_MakePrimUI* ui;

public slots:
	void hiResToggled (bool on);
};

void MakeCircle (int segs, int divs, double radius, QList<QLineF>& lines);
LDDocument* GeneratePrimitive (PrimitiveType type, int segs, int divs, int num);

// Gets a primitive by the given specs. If the primitive cannot be found, it will
// be automatically generated.
LDDocument* GetPrimitive (PrimitiveType type, int segs, int divs, int num);

QString MakeRadialFileName (PrimitiveType type, int segs, int divs, int num);