-/* moebiusgears, Copyright (c) 2007-2008 Jamie Zawinski <jwz@jwz.org>
+/* moebiusgears, Copyright (c) 2007-2014 Jamie Zawinski <jwz@jwz.org>
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
"*count: 17 \n" \
"*showFPS: False \n" \
"*wireframe: False \n" \
+ "*suppressRotationAnimation: True\n" \
# define refresh_mgears 0
# define release_mgears 0
0.0, 0.0, 0.0,
0.0, 1.0, 0.0);
+# ifdef HAVE_MOBILE /* Keep it the same relative size when rotated. */
+ {
+ int o = (int) current_device_rotation();
+ if (o != 0 && o != 180 && o != -180)
+ glScalef (1/h, 1/h, 1/h);
+ }
+# endif
+
glClear(GL_COLOR_BUFFER_BIT);
}
-ENTRYPOINT Bool
-mgears_handle_event (ModeInfo *mi, XEvent *event)
+static void
+reset_mgears (ModeInfo *mi)
{
mgears_configuration *bp = &bps[MI_SCREEN(mi)];
+ int wire = MI_IS_WIREFRAME(mi);
+ int total_gears = MI_COUNT(mi);
+ double gears_per_turn;
+ double gear_r, tw, th, thick, slope;
+ int i, nubs, size;
- if (event->xany.type == ButtonPress &&
- event->xbutton.button == Button1)
- {
- bp->button_down_p = True;
- gltrackball_start (bp->trackball,
- event->xbutton.x, event->xbutton.y,
- MI_WIDTH (mi), MI_HEIGHT (mi));
- return True;
- }
- else if (event->xany.type == ButtonRelease &&
- event->xbutton.button == Button1)
- {
- bp->button_down_p = False;
- return True;
- }
- else if (event->xany.type == ButtonPress &&
- (event->xbutton.button == Button4 ||
- event->xbutton.button == Button5 ||
- event->xbutton.button == Button6 ||
- event->xbutton.button == Button7))
+ if (! (total_gears & 1))
+ total_gears++; /* must be odd or gears intersect */
+
+ /* Number of teeth must be odd if number of gears is odd, or teeth don't
+ mesh when the loop closes. And since number of gears must be odd...
+ */
+ if (! (teeth_arg & 1)) teeth_arg++;
+ if (teeth_arg < 7) teeth_arg = 7;
+
+ if (total_gears < 13) /* gear mesh angle is too steep with less */
+ total_gears = 13;
+
+ thick = 0.2;
+ nubs = (random() & 3) ? 0 : (random() % teeth_arg) / 2;
+
+ slope = 0;
+
+ /* Sloping gears are incompatible with "-roll" ... */
+ /* slope= -M_PI * 2 / total_gears; */
+
+ gears_per_turn = total_gears / 2.0;
+
+ bp->ring_r = 3;
+ gear_r = M_PI * bp->ring_r / gears_per_turn;
+ tw = 0;
+ th = gear_r * 2.5 / teeth_arg;
+
+ /* If the gears are small, use a lower density mesh. */
+ size = (gear_r > 0.60 ? INVOLUTE_HUGE :
+ gear_r > 0.32 ? INVOLUTE_LARGE :
+ gear_r > 0.13 ? INVOLUTE_MEDIUM :
+ INVOLUTE_SMALL);
+
+ /* If there are lots of teeth, use a lower density mesh. */
+ if (teeth_arg > 77)
+ size = INVOLUTE_SMALL;
+ if (teeth_arg > 45 && size >= INVOLUTE_HUGE)
+ size = INVOLUTE_MEDIUM;
+
+ if (bp->gears)
{
- gltrackball_mousewheel (bp->trackball, event->xbutton.button, 10,
- !!event->xbutton.state);
- return True;
+ for (i = 0; i < bp->ngears; i++)
+ glDeleteLists (bp->gears[i].g.dlist, 1);
+ free (bp->gears);
+ bp->gears = 0;
}
- else if (event->xany.type == MotionNotify &&
- bp->button_down_p)
+
+ bp->ngears = total_gears;
+
+ bp->gears = (mogear *) calloc (bp->ngears, sizeof(*bp->gears));
+ for (i = 0; i < bp->ngears; i++)
{
- gltrackball_track (bp->trackball,
- event->xmotion.x, event->xmotion.y,
- MI_WIDTH (mi), MI_HEIGHT (mi));
- return True;
- }
+ mogear *mg = &bp->gears[i];
+ gear *g = &mg->g;
- return False;
-}
+ g->r = gear_r;
+ g->size = size;
+ g->nteeth = teeth_arg;
+ g->tooth_w = tw;
+ g->tooth_h = th;
+ g->tooth_slope = slope;
+ g->thickness = g->r * thick;
+ g->thickness2 = g->thickness * 0.1;
+ g->thickness3 = g->thickness;
+ g->inner_r = g->r * 0.80;
+ g->inner_r2 = g->r * 0.60;
+ g->inner_r3 = g->r * 0.55;
+ g->nubs = nubs;
+ mg->pos_th = (M_PI * 2 / gears_per_turn) * i;
+ mg->pos_thz = (M_PI / 2 / gears_per_turn) * i;
+
+ g->th = ((i & 1)
+ ? (M_PI * 2 / g->nteeth)
+ : 0);
+
+ /* Colorize
+ */
+ g->color[0] = 0.7 + frand(0.3);
+ g->color[1] = 0.7 + frand(0.3);
+ g->color[2] = 0.7 + frand(0.3);
+ g->color[3] = 1.0;
+
+ g->color2[0] = g->color[0] * 0.85;
+ g->color2[1] = g->color[1] * 0.85;
+ g->color2[2] = g->color[2] * 0.85;
+ g->color2[3] = g->color[3];
+
+ /* Now render the gear into its display list.
+ */
+ g->dlist = glGenLists (1);
+ if (! g->dlist)
+ {
+ check_gl_error ("glGenLists");
+ abort();
+ }
+ glNewList (g->dlist, GL_COMPILE);
+ g->polygons += draw_involute_gear (g, wire);
+ glEndList ();
+ }
+}
ENTRYPOINT void
{
mgears_configuration *bp;
int wire = MI_IS_WIREFRAME(mi);
- int i;
- if (!bps) {
- bps = (mgears_configuration *)
- calloc (MI_NUM_SCREENS(mi), sizeof (mgears_configuration));
- if (!bps) {
- fprintf(stderr, "%s: out of memory\n", progname);
- exit(1);
- }
- }
+ MI_INIT (mi, bps, NULL);
bp = &bps[MI_SCREEN(mi)];
do_wander ? wander_speed : 0,
False /* don't randomize */
);
- bp->trackball = gltrackball_init ();
+ bp->trackball = gltrackball_init (True);
}
- {
- int total_gears = MI_COUNT(mi);
- double gears_per_turn;
- double gear_r, tw, th, thick, slope;
- int nubs, size;
-
- if (! (total_gears & 1))
- total_gears++; /* must be odd or gears intersect */
-
- /* Number of teeth must be odd if number of gears is odd, or teeth don't
- mesh when the loop closes. And since number of gears must be odd...
- */
- if (! (teeth_arg & 1)) teeth_arg++;
- if (teeth_arg < 7) teeth_arg = 7;
-
- if (total_gears < 13) /* gear mesh angle is too steep with less */
- total_gears = 13;
-
- thick = 0.2;
- nubs = (random() & 3) ? 0 : (random() % teeth_arg) / 2;
-
- slope = 0;
-
- /* Sloping gears are incompatible with "-roll" ... */
- /* slope= -M_PI * 2 / total_gears; */
-
- gears_per_turn = total_gears / 2.0;
-
- bp->ring_r = 3;
- gear_r = M_PI * bp->ring_r / gears_per_turn;
- tw = 0;
- th = gear_r * 2.5 / teeth_arg;
-
- /* If the gears are small, use a lower density mesh. */
- size = (gear_r > 0.32 ? INVOLUTE_LARGE :
- gear_r > 0.13 ? INVOLUTE_MEDIUM :
- INVOLUTE_SMALL);
-
- /* If there are lots of teeth, use a lower density mesh. */
- if (teeth_arg > 77)
- size = INVOLUTE_SMALL;
- if (teeth_arg > 45 && size == INVOLUTE_LARGE)
- size = INVOLUTE_MEDIUM;
-
- bp->ngears = total_gears;
- bp->gears = (mogear *) calloc (bp->ngears, sizeof(*bp->gears));
- for (i = 0; i < bp->ngears; i++)
- {
- mogear *mg = &bp->gears[i];
- gear *g = &mg->g;
-
- g->r = gear_r;
- g->size = size;
- g->nteeth = teeth_arg;
- g->tooth_w = tw;
- g->tooth_h = th;
- g->tooth_slope = slope;
- g->thickness = g->r * thick;
- g->thickness2 = g->thickness * 0.1;
- g->thickness3 = g->thickness;
- g->inner_r = g->r * 0.80;
- g->inner_r2 = g->r * 0.60;
- g->inner_r3 = g->r * 0.55;
- g->nubs = nubs;
- mg->pos_th = (M_PI * 2 / gears_per_turn) * i;
- mg->pos_thz = (M_PI / 2 / gears_per_turn) * i;
-
- g->th = ((i & 1)
- ? (M_PI * 2 / g->nteeth)
- : 0);
-
- /* Colorize
- */
- g->color[0] = 0.7 + frand(0.3);
- g->color[1] = 0.7 + frand(0.3);
- g->color[2] = 0.7 + frand(0.3);
- g->color[3] = 1.0;
-
- g->color2[0] = g->color[0] * 0.85;
- g->color2[1] = g->color[1] * 0.85;
- g->color2[2] = g->color[2] * 0.85;
- g->color2[3] = g->color[3];
-
- /* Now render the gear into its display list.
- */
- g->dlist = glGenLists (1);
- if (! g->dlist)
- {
- check_gl_error ("glGenLists");
- abort();
- }
-
- glNewList (g->dlist, GL_COMPILE);
- g->polygons += draw_involute_gear (g, wire);
- glEndList ();
- }
- }
+ reset_mgears (mi);
+}
+
+
+ENTRYPOINT Bool
+mgears_handle_event (ModeInfo *mi, XEvent *event)
+{
+ mgears_configuration *bp = &bps[MI_SCREEN(mi)];
+
+ if (gltrackball_event_handler (event, bp->trackball,
+ MI_WIDTH (mi), MI_HEIGHT (mi),
+ &bp->button_down_p))
+ return True;
+ else if (event->xany.type == KeyPress)
+ {
+ KeySym keysym;
+ char c = 0;
+ XLookupString (&event->xkey, &c, 1, &keysym, 0);
+ if (c == '+' || c == '=' ||
+ keysym == XK_Up || keysym == XK_Right || keysym == XK_Next)
+ {
+ MI_COUNT(mi) += 2;
+ reset_mgears (mi);
+ return True;
+ }
+ else if (c == '-' || c == '_' ||
+ keysym == XK_Down || keysym == XK_Left || keysym == XK_Prior)
+ {
+ if (MI_COUNT(mi) <= 13)
+ return False;
+ MI_COUNT(mi) -= 2;
+ reset_mgears (mi);
+ return True;
+ }
+ else if (screenhack_event_helper (MI_DISPLAY(mi), MI_WINDOW(mi), event))
+ goto DEF;
+ }
+ else if (screenhack_event_helper (MI_DISPLAY(mi), MI_WINDOW(mi), event))
+ {
+ DEF:
+ MI_COUNT(mi) = 13 + (2 * (random() % 10));
+ reset_mgears (mi);
+ return True;
+ }
+
+ return False;
}
(y - 0.5) * 4,
(z - 0.5) * 7);
- /* Do it twice because we don't track the device's orientation. */
- glRotatef( current_device_rotation(), 0, 0, 1);
gltrackball_rotate (bp->trackball);
- glRotatef(-current_device_rotation(), 0, 0, 1);
get_rotation (bp->rot, &x, &y, &z, !bp->button_down_p);
projects / xscreensaver / blobdiff