bool Calibrator::add_click(int x, int y)
{
// Double-click detection
if (threshold_doubleclick > 0 && clicked.num > 0) {
int i = clicked.num - 1;
while (i >= 0) {
if (abs(x - clicked.x[i]) <= threshold_doubleclick
&& abs(y - clicked.y[i]) <= threshold_doubleclick) {
if (verbose) {
printf("DEBUG: Not adding click %i (X=%i, Y=%i): within %i pixels of previous click\n",
clicked.num, x, y, threshold_doubleclick);
}
return false;
}
i--;
}
}
// Mis-click detection
if (threshold_misclick > 0 && clicked.num > 0) {
bool misclick = true;
switch (clicked.num) {
case 1:
// check that along one axis of first point
if (along_axis(x,clicked.x[UL],clicked.y[UL]) ||
along_axis(y,clicked.x[UL],clicked.y[UL]))
{
misclick = false;
} else if (verbose) {
printf("DEBUG: Mis-click detected, click %i (X=%i, Y=%i) not aligned with click 0 (X=%i, Y=%i) (threshold=%i)\n",
clicked.num, x, y, clicked.x[UL], clicked.y[UL], threshold_misclick);
}
break;
case 2:
// check that along other axis of first point than second point
if ((along_axis( y, clicked.x[UL], clicked.y[UL])
&& along_axis( clicked.x[UR], clicked.x[UL], clicked.y[UL]))
|| (along_axis( x, clicked.x[UL], clicked.y[UL])
&& along_axis( clicked.y[UR], clicked.x[UL], clicked.y[UL])))
{
misclick = false;
} else if (verbose) {
printf("DEBUG: Mis-click detected, click %i (X=%i, Y=%i) not aligned with click 0 (X=%i, Y=%i) or click 1 (X=%i, Y=%i) (threshold=%i)\n",
clicked.num, x, y, clicked.x[UL], clicked.y[UL], clicked.x[UR], clicked.y[UR], threshold_misclick);
}
break;
case 3:
// check that along both axis of second and third point
if ( ( along_axis( x, clicked.x[UR], clicked.y[UR])
&& along_axis( y, clicked.x[LL], clicked.y[LL]) )
||( along_axis( y, clicked.x[UR], clicked.y[UR])
&& along_axis( x, clicked.x[LL], clicked.y[LL]) ) )
{
misclick = false;
} else if (verbose) {
printf("DEBUG: Mis-click detected, click %i (X=%i, Y=%i) not aligned with click 1 (X=%i, Y=%i) or click 2 (X=%i, Y=%i) (threshold=%i)\n",
clicked.num, x, y, clicked.x[UR], clicked.y[UR], clicked.x[LL], clicked.y[LL], threshold_misclick);
}
}
if (misclick) {
reset();
return false;
}
}
clicked.x.push_back(x);
clicked.y.push_back(y);
clicked.num++;
if (verbose)
printf("DEBUG: Adding click %i (X=%i, Y=%i)\n", clicked.num-1, x, y);
return true;
}
/* add a click with the given coordinates */
gboolean
add_click (struct Calib *c,
int x,
int y)
{
/* Double-click detection */
if (c->threshold_doubleclick > 0 && c->num_clicks > 0)
{
int i = c->num_clicks-1;
while (i >= 0)
{
if (abs(x - c->clicked_x[i]) <= c->threshold_doubleclick &&
abs(y - c->clicked_y[i]) <= c->threshold_doubleclick)
{
return FALSE;
}
i--;
}
}
/* Mis-click detection */
if (c->threshold_misclick > 0 && c->num_clicks > 0)
{
gboolean misclick = TRUE;
if (c->num_clicks == 1)
{
/* check that along one axis of first point */
if (along_axis(c, x,c->clicked_x[0],c->clicked_y[0]) ||
along_axis(c, y,c->clicked_x[0],c->clicked_y[0]))
{
misclick = FALSE;
}
}
else if (c->num_clicks == 2)
{
/* check that along other axis of first point than second point */
if ((along_axis(c, y,c->clicked_x[0],c->clicked_y[0]) &&
along_axis(c, c->clicked_x[1],c->clicked_x[0],c->clicked_y[0])) ||
(along_axis(c, x,c->clicked_x[0],c->clicked_y[0]) &&
along_axis(c, c->clicked_y[1],c->clicked_x[0],c->clicked_y[0])))
{
misclick = FALSE;
}
}
else if (c->num_clicks == 3)
{
/* check that along both axis of second and third point */
if ((along_axis(c, x,c->clicked_x[1],c->clicked_y[1]) &&
along_axis(c, y,c->clicked_x[2],c->clicked_y[2])) ||
(along_axis(c, y,c->clicked_x[1],c->clicked_y[1]) &&
along_axis(c, x,c->clicked_x[2],c->clicked_y[2])))
{
misclick = FALSE;
}
}
if (misclick)
{
reset(c);
return FALSE;
}
}
c->clicked_x[c->num_clicks] = x;
c->clicked_y[c->num_clicks] = y;
c->num_clicks++;
return TRUE;
}
bool Calibrator::add_click(int x, int y)
{
// Double-click detection
if (threshold_doubleclick > 0 && num_clicks > 0) {
int i = num_clicks-1;
while (i >= 0) {
if (abs(x - clicked_x[i]) <= threshold_doubleclick
&& abs(y - clicked_y[i]) <= threshold_doubleclick) {
if (verbose) {
printf("DEBUG: Not adding click %i (X=%i, Y=%i): within %i pixels of previous click\n",
num_clicks, x, y, threshold_doubleclick);
}
return false;
}
i--;
}
}
// Mis-click detection
if (threshold_misclick > 0 && num_clicks > 0) {
bool misclick = true;
if (num_clicks == 1) {
// check that along one axis of first point
if (along_axis(x,clicked_x[0],clicked_y[0]) ||
along_axis(y,clicked_x[0],clicked_y[0]))
misclick = false;
} else if (num_clicks == 2) {
// check that along other axis of first point than second point
if ((along_axis(y,clicked_x[0],clicked_y[0]) &&
along_axis(clicked_x[1],clicked_x[0],clicked_y[0])) ||
(along_axis(x,clicked_x[0],clicked_y[0]) &&
along_axis(clicked_y[1],clicked_x[0],clicked_y[0])))
misclick = false;
} else if (num_clicks == 3) {
// check that along both axis of second and third point
if ((along_axis(x,clicked_x[1],clicked_y[1]) &&
along_axis(y,clicked_x[2],clicked_y[2])) ||
(along_axis(y,clicked_x[1],clicked_y[1]) &&
along_axis(x,clicked_x[2],clicked_y[2])))
misclick = false;
}
if (misclick) {
if (verbose) {
if (num_clicks == 1)
printf("DEBUG: Mis-click detected, click %i (X=%i, Y=%i) not aligned with click 0 (X=%i, Y=%i) (threshold=%i)\n", num_clicks, x, y, clicked_x[0], clicked_y[0], threshold_misclick);
else if (num_clicks == 2)
printf("DEBUG: Mis-click detected, click %i (X=%i, Y=%i) not aligned with click 0 (X=%i, Y=%i) or click 1 (X=%i, Y=%i) (threshold=%i)\n", num_clicks, x, y, clicked_x[0], clicked_y[0], clicked_x[1], clicked_y[1], threshold_misclick);
else if (num_clicks == 3)
printf("DEBUG: Mis-click detected, click %i (X=%i, Y=%i) not aligned with click 1 (X=%i, Y=%i) or click 2 (X=%i, Y=%i) (threshold=%i)\n", num_clicks, x, y, clicked_x[1], clicked_y[1], clicked_x[2], clicked_y[2], threshold_misclick);
}
reset();
return false;
}
}
clicked_x[num_clicks] = x;
clicked_y[num_clicks] = y;
num_clicks++;
if (verbose)
printf("DEBUG: Adding click %i (X=%i, Y=%i)\n", num_clicks-1, x, y);
return true;
}