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-rw-r--r--test/CubeView.cxx246
1 files changed, 127 insertions, 119 deletions
diff --git a/test/CubeView.cxx b/test/CubeView.cxx
index fda542aa0..f2890d569 100644
--- a/test/CubeView.cxx
+++ b/test/CubeView.cxx
@@ -1,7 +1,7 @@
//
// CubeView class implementation for the Fast Light Tool Kit (FLTK).
//
-// Copyright 1998-2010 by Bill Spitzak and others.
+// Copyright 1998-2021 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this
@@ -14,40 +14,45 @@
// https://www.fltk.org/bugs.php
//
+// Note to editor: the following code can and should be copied
+// to the fluid tutorial in 'documentation/src/fluid.dox'
+// *without* '#if HAVE_GL' preprocessor statements, leaving
+// only those parts where the condition is true.
+
+// [\code in documentation/src/fluid.dox]
#include "CubeView.h"
#include <math.h>
-
#if HAVE_GL
-CubeView::CubeView(int x,int y,int w,int h,const char *l)
- : Fl_Gl_Window(x,y,w,h,l)
+CubeView::CubeView(int x, int y, int w, int h, const char *l)
+ : Fl_Gl_Window(x, y, w, h, l)
#else
-CubeView::CubeView(int x,int y,int w,int h,const char *l)
- : Fl_Box(x,y,w,h,l)
+CubeView::CubeView(int x, int y, int w, int h, const char *l)
+ : Fl_Box(x, y, w, h, l)
#endif /* HAVE_GL */
{
- Fl::use_high_res_GL(1);
- vAng = 0.0;
- hAng=0.0;
- size=10.0;
- xshift=0.0;
- yshift=0.0;
-
- /* The cube definition. These are the vertices of a unit cube
- * centered on the origin.*/
-
- boxv0[0] = -0.5; boxv0[1] = -0.5; boxv0[2] = -0.5;
- boxv1[0] = 0.5; boxv1[1] = -0.5; boxv1[2] = -0.5;
- boxv2[0] = 0.5; boxv2[1] = 0.5; boxv2[2] = -0.5;
- boxv3[0] = -0.5; boxv3[1] = 0.5; boxv3[2] = -0.5;
- boxv4[0] = -0.5; boxv4[1] = -0.5; boxv4[2] = 0.5;
- boxv5[0] = 0.5; boxv5[1] = -0.5; boxv5[2] = 0.5;
- boxv6[0] = 0.5; boxv6[1] = 0.5; boxv6[2] = 0.5;
- boxv7[0] = -0.5; boxv7[1] = 0.5; boxv7[2] = 0.5;
+ Fl::use_high_res_GL(1);
+ vAng = 0.0;
+ hAng = 0.0;
+ size = 10.0;
+ xshift = 0.0;
+ yshift = 0.0;
+
+ /* The cube definition. These are the vertices of a unit cube
+ * centered on the origin.*/
+
+ boxv0[0] = -0.5; boxv0[1] = -0.5; boxv0[2] = -0.5;
+ boxv1[0] = 0.5; boxv1[1] = -0.5; boxv1[2] = -0.5;
+ boxv2[0] = 0.5; boxv2[1] = 0.5; boxv2[2] = -0.5;
+ boxv3[0] = -0.5; boxv3[1] = 0.5; boxv3[2] = -0.5;
+ boxv4[0] = -0.5; boxv4[1] = -0.5; boxv4[2] = 0.5;
+ boxv5[0] = 0.5; boxv5[1] = -0.5; boxv5[2] = 0.5;
+ boxv6[0] = 0.5; boxv6[1] = 0.5; boxv6[2] = 0.5;
+ boxv7[0] = -0.5; boxv7[1] = 0.5; boxv7[2] = 0.5;
#if !HAVE_GL
- label("OpenGL is required for this demo to operate.");
- align(FL_ALIGN_WRAP | FL_ALIGN_INSIDE);
+ label("OpenGL is required for this demo to operate.");
+ align(FL_ALIGN_WRAP | FL_ALIGN_INSIDE);
#endif /* !HAVE_GL */
}
@@ -55,105 +60,108 @@ CubeView::CubeView(int x,int y,int w,int h,const char *l)
void CubeView::drawCube() {
/* Draw a colored cube */
#define ALPHA 0.5
- glShadeModel(GL_FLAT);
-
- glBegin(GL_QUADS);
- glColor4f(0.0, 0.0, 1.0, ALPHA);
- glVertex3fv(boxv0);
- glVertex3fv(boxv1);
- glVertex3fv(boxv2);
- glVertex3fv(boxv3);
-
- glColor4f(1.0, 1.0, 0.0, ALPHA);
- glVertex3fv(boxv0);
- glVertex3fv(boxv4);
- glVertex3fv(boxv5);
- glVertex3fv(boxv1);
-
- glColor4f(0.0, 1.0, 1.0, ALPHA);
- glVertex3fv(boxv2);
- glVertex3fv(boxv6);
- glVertex3fv(boxv7);
- glVertex3fv(boxv3);
-
- glColor4f(1.0, 0.0, 0.0, ALPHA);
- glVertex3fv(boxv4);
- glVertex3fv(boxv5);
- glVertex3fv(boxv6);
- glVertex3fv(boxv7);
-
- glColor4f(1.0, 0.0, 1.0, ALPHA);
- glVertex3fv(boxv0);
- glVertex3fv(boxv3);
- glVertex3fv(boxv7);
- glVertex3fv(boxv4);
-
- glColor4f(0.0, 1.0, 0.0, ALPHA);
- glVertex3fv(boxv1);
- glVertex3fv(boxv5);
- glVertex3fv(boxv6);
- glVertex3fv(boxv2);
- glEnd();
-
- glColor3f(1.0, 1.0, 1.0);
- glBegin(GL_LINES);
- glVertex3fv(boxv0);
- glVertex3fv(boxv1);
-
- glVertex3fv(boxv1);
- glVertex3fv(boxv2);
-
- glVertex3fv(boxv2);
- glVertex3fv(boxv3);
-
- glVertex3fv(boxv3);
- glVertex3fv(boxv0);
-
- glVertex3fv(boxv4);
- glVertex3fv(boxv5);
-
- glVertex3fv(boxv5);
- glVertex3fv(boxv6);
-
- glVertex3fv(boxv6);
- glVertex3fv(boxv7);
-
- glVertex3fv(boxv7);
- glVertex3fv(boxv4);
-
- glVertex3fv(boxv0);
- glVertex3fv(boxv4);
-
- glVertex3fv(boxv1);
- glVertex3fv(boxv5);
-
- glVertex3fv(boxv2);
- glVertex3fv(boxv6);
-
- glVertex3fv(boxv3);
- glVertex3fv(boxv7);
- glEnd();
-}//drawCube
+ glShadeModel(GL_FLAT);
+
+ glBegin(GL_QUADS);
+ glColor4f(0.0, 0.0, 1.0, ALPHA);
+ glVertex3fv(boxv0);
+ glVertex3fv(boxv1);
+ glVertex3fv(boxv2);
+ glVertex3fv(boxv3);
+
+ glColor4f(1.0, 1.0, 0.0, ALPHA);
+ glVertex3fv(boxv0);
+ glVertex3fv(boxv4);
+ glVertex3fv(boxv5);
+ glVertex3fv(boxv1);
+
+ glColor4f(0.0, 1.0, 1.0, ALPHA);
+ glVertex3fv(boxv2);
+ glVertex3fv(boxv6);
+ glVertex3fv(boxv7);
+ glVertex3fv(boxv3);
+
+ glColor4f(1.0, 0.0, 0.0, ALPHA);
+ glVertex3fv(boxv4);
+ glVertex3fv(boxv5);
+ glVertex3fv(boxv6);
+ glVertex3fv(boxv7);
+
+ glColor4f(1.0, 0.0, 1.0, ALPHA);
+ glVertex3fv(boxv0);
+ glVertex3fv(boxv3);
+ glVertex3fv(boxv7);
+ glVertex3fv(boxv4);
+
+ glColor4f(0.0, 1.0, 0.0, ALPHA);
+ glVertex3fv(boxv1);
+ glVertex3fv(boxv5);
+ glVertex3fv(boxv6);
+ glVertex3fv(boxv2);
+ glEnd();
+
+ glColor3f(1.0, 1.0, 1.0);
+ glBegin(GL_LINES);
+ glVertex3fv(boxv0);
+ glVertex3fv(boxv1);
+
+ glVertex3fv(boxv1);
+ glVertex3fv(boxv2);
+
+ glVertex3fv(boxv2);
+ glVertex3fv(boxv3);
+
+ glVertex3fv(boxv3);
+ glVertex3fv(boxv0);
+
+ glVertex3fv(boxv4);
+ glVertex3fv(boxv5);
+
+ glVertex3fv(boxv5);
+ glVertex3fv(boxv6);
+
+ glVertex3fv(boxv6);
+ glVertex3fv(boxv7);
+
+ glVertex3fv(boxv7);
+ glVertex3fv(boxv4);
+
+ glVertex3fv(boxv0);
+ glVertex3fv(boxv4);
+
+ glVertex3fv(boxv1);
+ glVertex3fv(boxv5);
+
+ glVertex3fv(boxv2);
+ glVertex3fv(boxv6);
+
+ glVertex3fv(boxv3);
+ glVertex3fv(boxv7);
+ glEnd();
+} // drawCube
void CubeView::draw() {
- if (!valid()) {
- glLoadIdentity();
- glViewport(0,0,pixel_w(),pixel_h());
- glOrtho(-10,10,-10,10,-20050,10000);
- glEnable(GL_BLEND);
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
- }
+ if (!valid()) {
+ glLoadIdentity();
+ glViewport(0, 0, pixel_w(), pixel_h());
+ glOrtho(-10, 10, -10, 10, -20050, 10000);
+ glEnable(GL_BLEND);
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ }
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
- glPushMatrix();
+ glPushMatrix();
- glTranslatef((GLfloat) xshift, (GLfloat) yshift, 0);
- glRotatef((GLfloat) hAng,0,1,0); glRotatef((GLfloat) vAng,1,0,0);
- glScalef(float(size),float(size),float(size));
+ glTranslatef((GLfloat)xshift, (GLfloat)yshift, 0);
+ glRotatef((GLfloat)hAng, 0, 1, 0);
+ glRotatef((GLfloat)vAng, 1, 0, 0);
+ glScalef(float(size), float(size), float(size));
- drawCube();
+ drawCube();
- glPopMatrix();
+ glPopMatrix();
}
+// [\endcode in documentation/src/fluid.dox]
+
#endif /* HAVE_GL */
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