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shapes demo: now only draw necessary size info, and calling that info by

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the right name.


git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@1409 7f0cb862-5218-0410-a997-914c9d46530a
This commit is contained in:
dcnieho 2012-11-19 02:46:34 +00:00
parent eec680a34b
commit 1759c0ef92
1 changed files with 84 additions and 37 deletions
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121
freeglut/freeglut/progs/demos/shapes/shapes.c
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@ -422,6 +422,17 @@ static GLboolean animateXRot = GL_FALSE;
static GLboolean useShader = GL_FALSE; static GLboolean useShader = GL_FALSE;
static GLboolean visNormals = GL_FALSE; static GLboolean visNormals = GL_FALSE;
/*
* Enum to tell drawSizeInfo what to draw for each object
*/
#define GEO_NO_SIZE 0
#define GEO_SIZE 1
#define GEO_SCALE 2
#define GEO_INNER_OUTER_RAD 4
#define GEO_RAD 8
#define GEO_BASE_HEIGHT 16
#define GEO_RAD_HEIGHT 32
/* /*
* These one-liners draw particular objects, fetching appropriate * These one-liners draw particular objects, fetching appropriate
* information from the above globals. They are just thin wrappers * information from the above globals. They are just thin wrappers
@ -527,24 +538,25 @@ typedef struct
const char * const name; const char * const name;
void (*solid) (void); void (*solid) (void);
void (*wire) (void); void (*wire) (void);
int drawSizeInfoFlag;
} entry; } entry;
#define ENTRY(e) {#e, drawSolid##e, drawWire##e} #define ENTRY(e,f) {#e, drawSolid##e, drawWire##e,f}
static const entry table [] = static const entry table [] =
{ {
ENTRY (Tetrahedron), ENTRY (Tetrahedron,GEO_NO_SIZE),
ENTRY (Cube), ENTRY (Cube,GEO_SIZE),
ENTRY (Octahedron), ENTRY (Octahedron,GEO_NO_SIZE),
ENTRY (Dodecahedron), ENTRY (Dodecahedron,GEO_NO_SIZE),
ENTRY (RhombicDodecahedron), ENTRY (RhombicDodecahedron,GEO_NO_SIZE),
ENTRY (Icosahedron), ENTRY (Icosahedron,GEO_NO_SIZE),
ENTRY (SierpinskiSponge), ENTRY (SierpinskiSponge,GEO_SCALE),
ENTRY (Teapot), ENTRY (Teapot,GEO_SIZE),
ENTRY (Torus), ENTRY (Torus,GEO_INNER_OUTER_RAD),
ENTRY (Sphere), ENTRY (Sphere,GEO_RAD),
ENTRY (Cone), ENTRY (Cone,GEO_BASE_HEIGHT),
ENTRY (Cylinder), ENTRY (Cylinder,GEO_RAD_HEIGHT),
ENTRY (Cuboctahedron) /* This one doesn't work when in shader mode and is then skipped */ ENTRY (Cuboctahedron,GEO_SIZE) /* This one doesn't work when in shader mode and is then skipped */
}; };
#undef ENTRY #undef ENTRY
@ -594,8 +606,61 @@ static void shapesPrintf (int row, int col, const char *fmt, ...)
glPopMatrix(); glPopMatrix();
} }
/* GLUT callback Handlers */ /* Print info about the about the current shape and render state on the screen */
static void DrawSizeInfo(int *row)
{
switch (table [function_index].drawSizeInfoFlag)
{
case GEO_NO_SIZE:
break;
case GEO_SIZE:
shapesPrintf ((*row)++, 1, "Size Up Down : %f", orad);
break;
case GEO_SCALE:
shapesPrintf ((*row)++, 1, "Scale Up Down : %f", orad);
break;
case GEO_INNER_OUTER_RAD:
shapesPrintf ((*row)++, 1, "Inner radius Left Right: %f", irad);
shapesPrintf ((*row)++, 1, "Outer radius Up Down : %f", orad);
break;
case GEO_RAD:
shapesPrintf ((*row)++, 1, "Radius Up Down : %f", orad);
break;
case GEO_BASE_HEIGHT:
shapesPrintf ((*row)++, 1, "Base Left Right: %f", irad);
shapesPrintf ((*row)++, 1, "Height Up Down : %f", orad);
break;
case GEO_RAD_HEIGHT:
shapesPrintf ((*row)++, 1, "Radius Left Right: %f", irad);
shapesPrintf ((*row)++, 1, "Height Up Down : %f", orad);
break;
}
}
static void drawInfo()
{
int row = 1;
shapesPrintf (row++, 1, "Shape PgUp PgDn: %s", table [function_index].name);
shapesPrintf (row++, 1, "Slices +-: %d Stacks <>: %d", slices, stacks);
shapesPrintf (row++, 1, "nSides +-: %d nRings <>: %d", slices, stacks);
shapesPrintf (row++, 1, "Depth (): %d", depth);
DrawSizeInfo(&row);
if (persProject)
shapesPrintf (row++, 1, "Perspective projection (p)");
else
shapesPrintf (row++, 1, "Orthographic projection (p)");
if (useShader)
shapesPrintf (row++, 1, "Using shader (s)");
else
shapesPrintf (row++, 1, "Using fixed function pipeline (s)");
if (animateXRot)
shapesPrintf (row++, 1, "2D rotation (r)");
else
shapesPrintf (row++, 1, "1D rotation (r)");
shapesPrintf (row++, 1, "visualizing normals: %i (n)",visNormals);
}
/* GLUT callback Handlers */
static void static void
resize(int width, int height) resize(int width, int height)
{ {
@ -695,30 +760,12 @@ static void display(void)
glColor3d(0.1,0.1,0.4); glColor3d(0.1,0.1,0.4);
} }
if( show_info ) { if( show_info )
shapesPrintf (1, 1, "Shape PgUp PgDn: %s", table [function_index].name); /* print info to screen */
shapesPrintf (2, 1, "Slices +-: %d Stacks <>: %d", slices, stacks); drawInfo();
shapesPrintf (3, 1, "nSides +-: %d nRings <>: %d", slices, stacks); else
shapesPrintf (4, 1, "Depth (): %d", depth);
shapesPrintf (5, 1, "Outer radius Up Down : %f", orad);
shapesPrintf (6, 1, "Inner radius Left Right: %f", irad);
if (persProject)
shapesPrintf (7, 1, "Perspective projection (p)");
else
shapesPrintf (7, 1, "Orthographic projection (p)");
if (useShader)
shapesPrintf (8, 1, "Using shader (s)");
else
shapesPrintf (8, 1, "Using fixed function pipeline (s)");
if (animateXRot)
shapesPrintf (9, 1, "2D rotation (r)");
else
shapesPrintf (9, 1, "1D rotation (r)");
shapesPrintf (10, 1, "visualizing normals: %i (n)",visNormals);
} else {
/* print to command line instead */ /* print to command line instead */
printf ( "Shape %d slides %d stacks %d\n", function_index, slices, stacks ) ; printf ( "Shape %d slides %d stacks %d\n", function_index, slices, stacks ) ;
}
glutSwapBuffers(); glutSwapBuffers();
} }