paramgl.h
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/*
* Copyright 1993-2013 NVIDIA Corporation. All rights reserved.
*
* Please refer to the NVIDIA end user license agreement (EULA) associated
* with this source code for terms and conditions that govern your use of
* this software. Any use, reproduction, disclosure, or distribution of
* this software and related documentation outside the terms of the EULA
* is strictly prohibited.
*
*/
/*
ParamListGL
- class derived from ParamList to do simple OpenGL rendering of a parameter list
sgg 8/2001
*/
#ifndef PARAMGL_H
#define PARAMGL_H
#if defined(__APPLE__) || defined(MACOSX)
#include <GLUT/glut.h>
#else
#include <GL/freeglut.h>
#endif
#include <string.h>
#include <param.h>
inline void beginWinCoords(void)
{
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glTranslatef(0.0, (GLfloat)(glutGet(GLUT_WINDOW_HEIGHT) - 1.0), 0.0);
glScalef(1.0, -1.0, 1.0);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(0, glutGet(GLUT_WINDOW_WIDTH), 0, glutGet(GLUT_WINDOW_HEIGHT), -1, 1);
glMatrixMode(GL_MODELVIEW);
}
inline void endWinCoords(void)
{
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
}
inline void glPrint(int x, int y, const char *s, void *font)
{
glRasterPos2f((GLfloat)x, (GLfloat)y);
int len = (int) strlen(s);
for (int i = 0; i < len; i++)
{
glutBitmapCharacter(font, s[i]);
}
}
inline void glPrintShadowed(int x, int y, const char *s, void *font, float *color)
{
glColor3f(0.0, 0.0, 0.0);
glPrint(x-1, y-1, s, font);
glColor3fv((GLfloat *) color);
glPrint(x, y, s, font);
}
class ParamListGL : public ParamList
{
public:
ParamListGL(const char *name = "") :
ParamList(name),
m_active(true),
m_text_color_selected(1.0, 1.0, 1.0),
m_text_color_unselected(0.75, 0.75, 0.75),
m_text_color_shadow(0.0, 0.0, 0.0),
m_bar_color_outer(0.25, 0.25, 0.25),
m_bar_color_inner(1.0, 1.0, 1.0)
{
m_font = (void *) GLUT_BITMAP_9_BY_15; // GLUT_BITMAP_8_BY_13;
m_font_h = 15;
m_bar_x = 260;
m_bar_w = 250;
m_bar_h = 10;
m_bar_offset = 5;
m_text_x = 5;
m_separation = 15;
m_value_x = 200;
m_start_x = 0;
m_start_y = 0;
}
void Render(int x, int y, bool shadow = false)
{
beginWinCoords();
m_start_x = x;
m_start_y = y;
for (std::vector<ParamBase *>::const_iterator p = m_params.begin(); p != m_params.end(); ++p)
{
if ((*p)->IsList())
{
ParamListGL *list = (ParamListGL *)(*p);
list->Render(x+10, y);
y += m_separation*list->GetSize();
}
else
{
if (p == m_current)
{
glColor3fv(&m_text_color_selected.r);
}
else
{
glColor3fv(&m_text_color_unselected.r);
}
if (shadow)
{
glPrintShadowed(x + m_text_x, y + m_font_h, (*p)->GetName().c_str(), m_font, (p == m_current) ? &m_text_color_selected.r : &m_text_color_unselected.r);
glPrintShadowed(x + m_value_x, y + m_font_h, (*p)->GetValueString().c_str(), m_font, (p == m_current) ? &m_text_color_selected.r : &m_text_color_unselected.r);
}
else
{
glPrint(x + m_text_x, y + m_font_h, (*p)->GetName().c_str(), m_font);
glPrint(x + m_value_x, y + m_font_h, (*p)->GetValueString().c_str(), m_font);
}
glColor3fv((GLfloat *) &m_bar_color_outer.r);
glBegin(GL_LINE_LOOP);
glVertex2f((GLfloat)(x + m_bar_x) , (GLfloat)(y + m_bar_offset));
glVertex2f((GLfloat)(x + m_bar_x + m_bar_w), (GLfloat)(y + m_bar_offset));
glVertex2f((GLfloat)(x + m_bar_x + m_bar_w), (GLfloat)(y + m_bar_offset + m_bar_h));
glVertex2f((GLfloat)(x + m_bar_x) , (GLfloat)(y + m_bar_offset + m_bar_h));
glEnd();
glColor3fv((GLfloat *) &m_bar_color_inner.r);
glRectf((GLfloat)(x + m_bar_x), (GLfloat)(y + m_bar_offset + m_bar_h), (GLfloat)(x + m_bar_x + ((m_bar_w-1)*(*p)->GetPercentage())), (GLfloat)(y + m_bar_offset + 1));
y += m_separation;
}
}
endWinCoords();
}
bool Mouse(int x, int y, int button=GLUT_LEFT_BUTTON, int state=GLUT_DOWN)
{
if ((y < m_start_y) || (y > (int)(m_start_y + (m_separation * m_params.size()) - 1)))
{
m_active = false;
return false;
}
m_active = true;
int i = (y - m_start_y) / m_separation;
if ((button==GLUT_LEFT_BUTTON) && (state==GLUT_DOWN))
{
#if defined(__GNUC__) && (__GNUC__ < 3)
m_current = &m_params[i];
#else
// MJH: workaround since the version of vector::at used here is non-standard
for (m_current = m_params.begin(); m_current != m_params.end() && i > 0; m_current++, i--) ;
//m_current = (std::vector<ParamBase *>::const_iterator)&m_params.at(i);
#endif
if ((x > m_bar_x) && (x < m_bar_x + m_bar_w))
{
Motion(x, y);
}
}
return true;
}
bool Motion(int x, int y)
{
if ((y < m_start_y) || (y > m_start_y + (m_separation * (int)m_params.size()) - 1))
{
return false;
}
if (x < m_bar_x)
{
(*m_current)->SetPercentage(0.0);
return true;
}
if (x > m_bar_x + m_bar_w)
{
(*m_current)->SetPercentage(1.0);
return true;
}
(*m_current)->SetPercentage((x-m_bar_x) / (float) m_bar_w);
return true;
}
void Special(int key, int x, int y)
{
if (!m_active)
return;
switch (key)
{
case GLUT_KEY_DOWN:
Increment();
break;
case GLUT_KEY_UP:
Decrement();
break;
case GLUT_KEY_RIGHT:
GetCurrent()->Increment();
break;
case GLUT_KEY_LEFT:
GetCurrent()->Decrement();
break;
case GLUT_KEY_HOME:
GetCurrent()->Reset();
break;
case GLUT_KEY_END:
GetCurrent()->SetPercentage(1.0);
break;
}
glutPostRedisplay();
}
void SetFont(void *font, int height)
{
m_font = font;
m_font_h = height;
}
void SetSelectedColor(float r, float g, float b)
{
m_text_color_selected = Color(r, g, b);
}
void SetUnSelectedColor(float r, float g, float b)
{
m_text_color_unselected = Color(r, g, b);
}
void SetBarColorInner(float r, float g, float b)
{
m_bar_color_inner = Color(r, g, b);
}
void SetBarColorOuter(float r, float g, float b)
{
m_bar_color_outer = Color(r, g, b);
}
void SetActive(bool b)
{
m_active = b;
}
private:
void *m_font;
int m_font_h; // font height
int m_bar_x; // bar start x position
int m_bar_w; // bar width
int m_bar_h; // bar height
int m_text_x; // text start x position
int m_separation; // bar separation in y
int m_value_x; // value text x position
int m_bar_offset; // bar offset in y
int m_start_x, m_start_y;
bool m_active;
struct Color
{
Color(float _r, float _g, float _b)
{
r = _r;
g = _g;
b = _b;
}
float r, g, b;
};
Color m_text_color_selected;
Color m_text_color_unselected;
Color m_text_color_shadow;
Color m_bar_color_outer;
Color m_bar_color_inner;
};
#endif