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Util.h
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Util.h
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/*
* Util.h
*
* (c) 2013 Sofian Audry -- info(@)sofianaudry(.)com
*
* 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/>.
*/
#ifndef UTIL_H_
#define UTIL_H_
#if __APPLE__
#include <OpenGL/gl.h>
#else
#include <GL/gl.h>
#endif
#include "Shapes.h"
#include "MM.h"
#include "Paint.h"
#include <QString>
MM_BEGIN_NAMESPACE
/**
* @namespace Util Useful functions.
*/
namespace Util {
/// Calls glTexCoord2f() with the corrected texture coordinates.
void correctGlTexCoord(GLfloat x, GLfloat y);
/**
* Takes a point (intputPoint) on texture and outputs it as a GL vertex on output (outputPoint).
* Useful in texture mappings, where one often needs to call this function to project points from texture
* between glBegin(<GL_SHAPE>) and glEnd() calls.
*/
void setGlTexPoint(const Texture& texture, const QPointF& inputPoint, const QPointF& outputPoint);
float map_float(float value, float istart, float istop, float ostart, float ostop);
int map_int(int value, int istart, int istop, int ostart, int ostop);
Mesh* createMeshForTexture(Texture* texture, int frameWidth, int frameHeight);
Triangle* createTriangleForTexture(Texture* texture, int frameWidth, int frameHeight);
Ellipse* createEllipseForTexture(Texture* texture, int frameWidth, int frameHeight);
Quad* createQuadForColor(int frameWidth, int frameHeight);
Triangle* createTriangleForColor(int frameWidth, int frameHeight);
Ellipse* createEllipseForColor(int frameWidth, int frameHeight);
void drawControlsVertex(QPainter* painter, const QPointF& vertex, bool selected, bool locked, qreal radius = MM::VERTEX_SELECT_RADIUS, qreal strokeWidth = MM::VERTEX_SELECT_STROKE_WIDTH);
/**
* Checks if a file exists or not.
*/
bool fileExists(const QString& filename);
bool eraseFile(const QString& filename);
bool eraseSettings();
bool isNumeric(const QString& text);
} // end of namespace
MM_END_NAMESPACE
#endif /* UTIL_H_ */