/**
*** select_button()
*** Given (x,y) and uberbutton, returns pointer to referred button, or NULL
**/
button_info *select_button(button_info *ub,int x,int y)
{
int i;
int row;
int column;
button_info *b;
if (!(ub->flags&b_Container))
return ub;
x -= buttonXPad(ub) + buttonFrame(ub);
y -= buttonYPad(ub) + buttonFrame(ub);
if(x >= ub->c->width || x < 0 || y >= ub->c->height || y < 0)
return ub;
column = x * ub->c->num_columns / ub->c->width;
row = y * ub->c->num_rows / ub->c->height;
i = button_belongs_to(ub, column + row * ub->c->num_columns);
if (i == -1)
return ub;
b = ub->c->buttons[i];
return select_button(
b, x + ub->c->xpos - buttonXPos(b, i),
y + ub->c->ypos - buttonYPos(b, i));
}
/**
*** get_xy_button()
*** Function that returns the button that covers the given row/column in the
*** button matrix. Returns NULL if none.
**/
button_info *get_xy_button(button_info *ub, int row, int column)
{
int i;
if (!ub->flags.b_Container)
{
return NULL;
}
i = button_belongs_to(ub, column + row * ub->c->num_columns);
if (i == -1)
{
return NULL;
}
return ub->c->buttons[i];
}
