/*
* read the file into a list of lines.
*
* we use the buffered read functions to read a block at a time, and
* return us a pointer to a line within the block. The line we are
* pointed to is not null terminated. from this we do a line_new: this
* will make a copy of the text (since we want to re-use the buffer), and
* will null-terminate its copy.
*
* we also give each line a number, starting at one.
*/
void
file_readlines(FILEDATA fd)
{
LPSTR textp;
LPWSTR pwzText;
int cwch;
HANDLE fh;
FILEBUFFER fbuf;
int linelen;
int linenr = 1;
HCURSOR hcurs;
hcurs = SetCursor(LoadCursor(NULL, IDC_WAIT));
/* open the file */
fh = dir_openfile(fd->diritem);
if (fh == INVALID_HANDLE_VALUE) {
TRACE_ERROR(LoadRcString(IDS_ERR_OPENING_FILE), FALSE);
SetCursor(hcurs);
return;
}
/* initialise the file buffering */
fbuf = readfile_new(fh, &fd->fUnicode);
if (fbuf)
{
/* make an empty list for the files */
fd->lines = List_Create();
while ( (textp = readfile_next(fbuf, &linelen, &pwzText, &cwch)) != NULL) {
if (linelen>0) { /* readfile failure gives linelen==-1 */
line_new(textp, linelen, pwzText, cwch, linenr++, fd->lines);
} else {
line_new("!! <unreadable> !!", 20, NULL, 0, linenr++,fd->lines);
break;
}
}
/* close filehandle and free buffer */
readfile_delete(fbuf);
}
dir_closefile(fd->diritem, fh);
SetCursor(hcurs);
}
int main( int argc, char ** argv )
{
line_t * ptr;
int sz;
char * lines[3] = {
"goober",
"",
"Looks like a real line.\n"
};
for(int i=0; i < 3; i++)
{
ptr = line_new();
line_set(ptr , lines[i]);
sz = line_size( ptr );
printf("ptr size: %d\n", sz );
printf("ptr data: %s\n", line_get(ptr) );
printf("ends in newline: %s\n", line_has_newline( ptr ) ? "Yes" : "No" );
printf("null terminated: %s\n", line_null_terminated( ptr ) ? "Yes" : "No" );
line_free( ptr );
printf("line after free is null? %s\n", ptr == NULL ? "Yes" : "No" );
}
return 0;
}
bool buf_read(struct Buffer *buf, const char *name)
{
buf_clear(buf);
FILE *fp = fopen(name ?: buf->name, "r");
if (fp) {
char in[BUFSIZ];
while (fgets(in, BUFSIZ, fp) != NULL) {
struct Line *l = line_new(in, strlen(in) - 1);
buf_pushback(buf, l);
}
buf->line = buf->beg;
fclose(fp);
return true;
}
else {
struct Line *l = line_new(NULL, 0);
buf_pushback(buf, l);
buf->line = l;
}
return false;
}
static GObject * radare_gui_radget_information_constructor (GType type, guint n_construct_properties, GObjectConstructParam * construct_properties) {
GObject * obj;
RadareGUIRadgetInformationClass * klass;
GObjectClass * parent_class;
RadareGUIRadgetInformation * self;
klass = RADARE_GUI_RADGET_INFORMATION_CLASS (g_type_class_peek (RADARE_GUI_TYPE_RADGET_INFORMATION));
parent_class = G_OBJECT_CLASS (g_type_class_peek_parent (klass));
obj = parent_class->constructor (type, n_construct_properties, construct_properties);
self = RADARE_GUI_RADGET_INFORMATION (obj);
{
GtkVBox* _tmp0;
Line* _tmp2;
Line* _tmp1;
Line* _tmp4;
Line* _tmp3;
_tmp0 = NULL;
#line 14 "info.vala"
self->priv->vb = (_tmp0 = g_object_ref_sink (((GtkVBox*) (gtk_vbox_new (FALSE, 2)))), (self->priv->vb == NULL ? NULL : (self->priv->vb = (g_object_unref (self->priv->vb), NULL))), _tmp0);
_tmp2 = NULL;
_tmp1 = NULL;
#line 15 "info.vala"
self->priv->file = (_tmp2 = line_name ((_tmp1 = g_object_ref_sink (line_new ())), "File", "/bin/ls"), (self->priv->file == NULL ? NULL : (self->priv->file = (g_object_unref (self->priv->file), NULL))), _tmp2);
(_tmp1 == NULL ? NULL : (_tmp1 = (g_object_unref (_tmp1), NULL)));
#line 16 "info.vala"
gtk_container_add (((GtkContainer*) (self->priv->vb)), ((GtkWidget*) (self->priv->file)));
_tmp4 = NULL;
_tmp3 = NULL;
#line 17 "info.vala"
self->priv->size = (_tmp4 = line_numeric ((_tmp3 = g_object_ref_sink (line_new ())), "Size", 38432), (self->priv->size == NULL ? NULL : (self->priv->size = (g_object_unref (self->priv->size), NULL))), _tmp4);
(_tmp3 == NULL ? NULL : (_tmp3 = (g_object_unref (_tmp3), NULL)));
#line 18 "info.vala"
gtk_container_add (((GtkContainer*) (self->priv->vb)), ((GtkWidget*) (self->priv->size)));
#line 19 "info.vala"
radare_gui_radget_refresh (((RadareGUIRadget*) (self)));
}
return obj;
}
bool
c_DiffusionCurve::calculate_shadow(const t_Real _t_begin,
const t_Real _t_end,
const e_DirectionType _direction,
const cv::Mat &_image,
t_CvPointSet &_shadow) const
{
_shadow.clear();
t_Real length = m_p_curve->GetLength(_t_begin, _t_end);
int n_segments = (std::max)(m_unit, length) / m_unit;
t_Real dt = (_t_end - _t_begin) / n_segments;
t_Point p_off_new = get_offset_point(_t_begin, _direction);
t_Point p_on_new = m_p_curve->GetPosition(_t_begin);
t_Point p_off_old, p_on_old;
for (t_Real t = _t_begin; t < _t_end; t += dt)
{
p_off_old = p_off_new;
p_on_old = p_on_new;
p_on_new = m_p_curve->GetPosition(t + dt);
p_off_new = get_offset_point(t + dt, _direction);
t_Line line_old(p_on_old, p_off_old);
t_Line line_new(p_on_new, p_off_new);
t_Intersector intersection(line_old, line_new);
/*!< if the two lines are not interstected */
if (1 != intersection.GetQuantity())
{
t_CvPointSet temp_sequence;
if (find_line_pixels(_image,
t_CvPoint(p_off_old.X(), p_off_old.Y()),
t_CvPoint(p_off_new.X(), p_off_new.Y()),
temp_sequence))
{
_shadow.insert(_shadow.end(), temp_sequence.begin(),
temp_sequence.end() - 1);
}
}
}
/*!< append the last point into the sequence */
_shadow.push_back(cv::Point(p_off_new.X(), p_off_new.Y()));
return _shadow.size();
}
static void screen_scroll_up(struct tsm_screen *con, unsigned int num)
{
unsigned int i, j, max;
int ret;
if (!num)
return;
max = con->margin_bottom + 1 - con->margin_top;
if (num > max)
num = max;
/* We cache lines on the stack to speed up the scrolling. However, if
* num is too big we might get overflows here so use recursion if num
* exceeds a hard-coded limit.
* 128 seems to be a sane limit that should never be reached but should
* also be small enough so we do not get stack overflows. */
if (num > 128) {
screen_scroll_up(con, 128);
return screen_scroll_up(con, num - 128);
}
struct line *cache[num];
for (i = 0; i < num; ++i) {
ret = line_new(con, &cache[i], con->size_x);
if (!ret) {
link_to_scrollback(con,
con->lines[con->margin_top + i]);
} else {
cache[i] = con->lines[con->margin_top + i];
for (j = 0; j < con->size_x; ++j)
cell_init(con, &cache[i]->cells[j]);
}
}
if (num < max) {
memmove(&con->lines[con->margin_top],
&con->lines[con->margin_top + num],
(max - num) * sizeof(struct line*));
}
memcpy(&con->lines[con->margin_top + (max - num)],
cache, num * sizeof(struct line*));
}
fractal_line_struct *fractal_polyline_new ( gint steps,
gint random_x, gint random_y,
gint width, gint random_w,
gint seed, gdouble distribution,
gboolean if_cracks, gint cracks_depth, gint cracks_width,
gint cracks_branching_steps )
{
fractal_line_struct *f;
f = (fractal_line_struct *) x_malloc(sizeof(fractal_line_struct), "fractal_line_struct");
f->steps = steps;
f->random_x = random_x;
f->random_y = random_y;
f->seed = seed;
f->distribution = distribution;
f->width = width;
f->random_w = random_w;
f->if_cracks = if_cracks;
f->cracks_depth = cracks_depth;
f->cracks_width = cracks_width;
f->cracks_branching_steps = cracks_branching_steps;
f->polyline = line_new ((gint) pow(2.0,(gdouble) f->steps),width);
return f;
}
/* not very efficient but simple */
Line *
io_readline (FILE *f)
{
Line *l;
int c;
l = line_new();
while (!feof(f))
{
c = fgetc(f);
if (c == EOF || c == '\n')
break;
if (l->size >= l->max_size)
line_grow(l);
l->buf[l->size++] = c;
}
if (!l->size && feof(f))
{
line_free(l);
return NULL;
}
if (l->size)
line_compact(l);
else
{
free(l->buf);
l->buf = NULL;
}
return l;
}
SHL_EXPORT
int tsm_screen_resize(struct tsm_screen *con, unsigned int x,
unsigned int y)
{
struct line **cache;
unsigned int i, j, width, diff, start;
int ret;
bool *tab_ruler;
if (!con || !x || !y)
return -EINVAL;
if (con->size_x == x && con->size_y == y)
return 0;
/* First make sure the line buffer is big enough for our new screen.
* That is, allocate all new lines and make sure each line has enough
* cells to hold the new screen or the current screen. If we fail, we
* can safely return -ENOMEM and the buffer is still valid. We must
* allocate the new lines to at least the same size as the current
* lines. Otherwise, if this function fails in later turns, we will have
* invalid lines in the buffer. */
if (y > con->line_num) {
/* resize main buffer */
cache = realloc(con->main_lines, sizeof(struct line*) * y);
if (!cache)
return -ENOMEM;
if (con->lines == con->main_lines)
con->lines = cache;
con->main_lines = cache;
/* resize alt buffer */
cache = realloc(con->alt_lines, sizeof(struct line*) * y);
if (!cache)
return -ENOMEM;
if (con->lines == con->alt_lines)
con->lines = cache;
con->alt_lines = cache;
/* allocate new lines */
if (x > con->size_x)
width = x;
else
width = con->size_x;
while (con->line_num < y) {
ret = line_new(con, &con->main_lines[con->line_num],
width);
if (ret)
return ret;
ret = line_new(con, &con->alt_lines[con->line_num],
width);
if (ret) {
line_free(con->main_lines[con->line_num]);
return ret;
}
++con->line_num;
}
}
/* Resize all lines in the buffer if we increase screen width. This
* will guarantee that all lines are big enough so we can resize the
* buffer without reallocating them later. */
if (x > con->size_x) {
tab_ruler = realloc(con->tab_ruler, sizeof(bool) * x);
if (!tab_ruler)
return -ENOMEM;
con->tab_ruler = tab_ruler;
for (i = 0; i < con->line_num; ++i) {
ret = line_resize(con, con->main_lines[i], x);
if (ret)
return ret;
ret = line_resize(con, con->alt_lines[i], x);
if (ret)
return ret;
}
}
screen_inc_age(con);
/* clear expansion/padding area */
start = x;
if (x > con->size_x)
start = con->size_x;
for (j = 0; j < con->line_num; ++j) {
/* main-lines may go into SB, so clear all cells */
i = 0;
if (j < con->size_y)
i = start;
for ( ; i < con->main_lines[j]->size; ++i)
screen_cell_init(con, &con->main_lines[j]->cells[i]);
/* alt-lines never go into SB, only clear visible cells */
i = 0;
if (j < con->size_y)
i = con->size_x;
for ( ; i < x; ++i)
screen_cell_init(con, &con->alt_lines[j]->cells[i]);
}
/* xterm destroys margins on resize, so do we */
con->margin_top = 0;
con->margin_bottom = con->size_y - 1;
/* reset tabs */
for (i = 0; i < x; ++i) {
if (i % 8 == 0)
con->tab_ruler[i] = true;
else
con->tab_ruler[i] = false;
}
/* We need to adjust x-size first as screen_scroll_up() and friends may
* have to reallocate lines. The y-size is adjusted after them to avoid
* missing lines when shrinking y-size.
* We need to carefully look for the functions that we call here as they
* have stronger invariants as when called normally. */
con->size_x = x;
if (con->cursor_x >= con->size_x)
move_cursor(con, con->size_x - 1, con->cursor_y);
/* scroll buffer if screen height shrinks */
if (y < con->size_y) {
diff = con->size_y - y;
screen_scroll_up(con, diff);
if (con->cursor_y > diff)
move_cursor(con, con->cursor_x, con->cursor_y - diff);
else
move_cursor(con, con->cursor_x, 0);
}
con->size_y = y;
con->margin_bottom = con->size_y - 1;
if (con->cursor_y >= con->size_y)
move_cursor(con, con->cursor_x, con->size_y - 1);
return 0;
}
static void screen_scroll_up(struct tsm_screen *con, unsigned int num)
{
unsigned int i, j, max, pos;
int ret;
if (!num)
return;
/* TODO: more sophisticated ageing */
con->age = con->age_cnt;
max = con->margin_bottom + 1 - con->margin_top;
if (num > max)
num = max;
/* We cache lines on the stack to speed up the scrolling. However, if
* num is too big we might get overflows here so use recursion if num
* exceeds a hard-coded limit.
* 128 seems to be a sane limit that should never be reached but should
* also be small enough so we do not get stack overflows. */
if (num > 128) {
screen_scroll_up(con, 128);
return screen_scroll_up(con, num - 128);
}
struct line *cache[num];
for (i = 0; i < num; ++i) {
pos = con->margin_top + i;
if (!(con->flags & TSM_SCREEN_ALTERNATE))
ret = line_new(con, &cache[i], con->size_x);
else
ret = -EAGAIN;
if (!ret) {
link_to_scrollback(con, con->lines[pos]);
} else {
cache[i] = con->lines[pos];
for (j = 0; j < con->size_x; ++j)
screen_cell_init(con, &cache[i]->cells[j]);
}
}
if (num < max) {
memmove(&con->lines[con->margin_top],
&con->lines[con->margin_top + num],
(max - num) * sizeof(struct line*));
}
memcpy(&con->lines[con->margin_top + (max - num)],
cache, num * sizeof(struct line*));
if (con->sel_active) {
if (!con->sel_start.line && con->sel_start.y >= 0) {
con->sel_start.y -= num;
if (con->sel_start.y < 0) {
con->sel_start.line = con->sb_last;
while (con->sel_start.line && ++con->sel_start.y < 0)
con->sel_start.line = con->sel_start.line->prev;
con->sel_start.y = SELECTION_TOP;
}
}
if (!con->sel_end.line && con->sel_end.y >= 0) {
con->sel_end.y -= num;
if (con->sel_end.y < 0) {
con->sel_end.line = con->sb_last;
while (con->sel_end.line && ++con->sel_end.y < 0)
con->sel_end.line = con->sel_end.line->prev;
con->sel_end.y = SELECTION_TOP;
}
}
}
}
int tsm_screen_resize(struct tsm_screen *con, unsigned int x,
unsigned int y)
{
struct line **cache;
unsigned int i, j, width, diff;
int ret;
bool *tab_ruler;
if (!con || !x || !y)
return -EINVAL;
if (con->size_x == x && con->size_y == y)
return 0;
/* First make sure the line buffer is big enough for our new screen.
* That is, allocate all new lines and make sure each line has enough
* cells to hold the new screen or the current screen. If we fail, we
* can safely return -ENOMEM and the buffer is still valid. We must
* allocate the new lines to at least the same size as the current
* lines. Otherwise, if this function fails in later turns, we will have
* invalid lines in the buffer. */
if (y > con->line_num) {
cache = realloc(con->lines, sizeof(struct line*) * y);
if (!cache)
return -ENOMEM;
con->lines = cache;
if (x > con->size_x)
width = x;
else
width = con->size_x;
while (con->line_num < y) {
ret = line_new(con, &cache[con->line_num], width);
if (ret)
return ret;
++con->line_num;
}
}
/* Resize all lines in the buffer if we increase screen width. This
* will guarantee that all lines are big enough so we can resize the
* buffer without reallocating them later. */
if (x > con->size_x) {
tab_ruler = realloc(con->tab_ruler, sizeof(bool) * x);
if (!tab_ruler)
return -ENOMEM;
con->tab_ruler = tab_ruler;
for (i = 0; i < con->line_num; ++i) {
ret = line_resize(con, con->lines[i], x);
if (ret)
return ret;
}
}
/* When resizing, we need to reset all the new cells, otherwise, the old
* data that was written there will reoccur on the screen.
* TODO: we overwrite way to much here; most of it should already be
* cleaned. Maybe it does more sense cleaning when _allocating_ or when
* _shrinking_, then we never clean twice (for performance reasons). */
for (j = 0; j < con->line_num; ++j) {
if (j >= con->size_y)
i = 0;
else
i = con->size_x;
if (x < con->lines[j]->size)
width = x;
else
width = con->lines[j]->size;
for (; i < width; ++i)
cell_init(con, &con->lines[j]->cells[i]);
}
/* xterm destroys margins on resize, so do we */
con->margin_top = 0;
con->margin_bottom = con->size_y - 1;
/* reset tabs */
for (i = 0; i < x; ++i) {
if (i % 8 == 0)
con->tab_ruler[i] = true;
else
con->tab_ruler[i] = false;
}
/* We need to adjust x-size first as screen_scroll_up() and friends may
* have to reallocate lines. The y-size is adjusted after them to avoid
* missing lines when shrinking y-size.
* We need to carefully look for the functions that we call here as they
* have stronger invariants as when called normally. */
con->size_x = x;
if (con->cursor_x >= con->size_x)
con->cursor_x = con->size_x - 1;
/* scroll buffer if screen height shrinks */
if (con->size_y != 0 && y < con->size_y) {
diff = con->size_y - y;
screen_scroll_up(con, diff);
if (con->cursor_y > diff)
con->cursor_y -= diff;
else
con->cursor_y = 0;
}
con->size_y = y;
con->margin_bottom = con->size_y - 1;
if (con->cursor_y >= con->size_y)
con->cursor_y = con->size_y - 1;
return 0;
}
/*
* Minimum Width
* The minimum width is the distance between the closest parallel lines
* between which all of the point are placed.
* To find the minimal width,
* we'll go through a sequence of pairs of parallel lines the hold all of the points between them.
* In each pair, one of the lines must coincide with a polygon edge.
* The other line will be the most distant line that still touches the polygon
* (There are at most n pairs).
* 1. For each pair, we'll find the distance between the two lines,
* and the width is the minimal distance.
* 2. We'll find the pairs in the following way:
* 3. The first pair will consist of two vertical lines that
* go thru the most left and the most right points.
* 4. Then, for each pair, (exactly like in the diameter)
* we rotate the two parallel lines in the angle that
* move one line to lie on a new edge.
*/
real_t convexhull_compute_min_width(line_t *width, polygon_t *chull)
{
int i;
real_t *ang, dist, value, rotate;
real_t da, db, alpha, beta, xmin, xmax;
dlink_t *ax, *ax_next;
dlink_t *bx, *bx_next;
dlink_t *x, *lx, *rx;
point_t *a, *b, *p, *q;
line_t *line;
assert(width);
assert(chull);
assert(polygon_get_count(chull) >= 3);
ang = (real_t *)malloc(polygon_get_count(chull) * sizeof(real_t));
assert(ang);
// Find the angle between verteces
i = 0;
ax = chull->head->prev;
bx = chull->tail->next;
do {
a = (point_t *)ax->object;
b = (point_t *)bx->object;
ang[i] = arctan2r(point_get_y(b) - point_get_y(a),
point_get_x(b) - point_get_x(a));
ang[i] = ang[i] > M_PI ? ang[i] - M_PI : ang[i];
ax->spare = (void *)&ang[i];
printf("(%lf,%lf) -> (%lf,%lf) < %lf deg\n",
point_get_x(a), point_get_y(a),
point_get_x(b), point_get_y(b),
ang[i] * 180 / M_PI);
i++;
ax = bx;
bx = bx->next;
} while (bx != chull->head);
printf("Initialized the angle between verteces\n");
// Find the most left and right point
lx = NULL;
rx = NULL;
for (x = chull->tail->next; x != chull->head; x = x->next) {
p = (point_t *)x->object;
if (lx == NULL || point_get_x(p) < xmin) {
lx = x;
xmin = point_get_x(p);
}
if (rx == NULL || point_get_x(p) > xmax) {
rx = x;
xmax = point_get_x(p);
}
}
printf("Founded the leftmost and rightmost points\n");
ax = lx;
bx = rx;
dist = 0.0;
p = NULL;
q = NULL;
rotate = M_PI_2; // pi / 2;
line = line_new();
do {
a = (point_t *)ax->object;
b = (point_t *)bx->object;
printf("(%lf,%lf) -> (%lf,%lf)\n",
point_get_x(a), point_get_y(a),
point_get_x(b), point_get_y(b));
value = get_distance_of_p2p(a, b);
if (p == NULL || q == NULL || value < dist) {
p = a;
q = b;
dist = value;
}
alpha = *((real_t *)ax->spare);
beta = *((real_t *)bx->spare);
printf("rotate: %lf, alpha: %lf, beta: %lf\n",
rotate * 180 / M_PI, alpha * 180 / M_PI, beta * 180 / M_PI);
/*
circle(((point_t *)a->object)->x, ((point_t *)a->object)->y, 10, 255, 0, 0);
circle(((point_t *)b->object)->x, ((point_t *)b->object)->y, 10, 255, 0, 0);
keyhit();
circle(((point_t *)a->object)->x, ((point_t *)a->object)->y, 10, 0, 0, 0);
circle(((point_t *)b->object)->x, ((point_t *)b->object)->y, 10, 0, 0, 0);
*/
// Make alpha and beta in the range of acute angle
if (alpha >= rotate) da = alpha - rotate;
else da = M_PI + alpha - rotate;
if (beta >= rotate) db = beta - rotate;
else db = M_PI + beta - rotate;
if (da < db) {
rotate = alpha;
if (ax->next == chull->head) ax_next = chull->tail->next;
else ax_next -= ax->next;
line_set_endpoints(line, a, (point_t *)ax_next->object);
value = distance_from_point_to_line(b, line);
if (p == NULL || q == NULL || value < dist) {
p = a;
q = b;
dist = value;
}
line_clear(line);
ax = ax_next;
} else {
rotate = beta;
if (bx->next == chull->head) bx_next = chull->tail->next;
else bx_next = bx->next;
line_set_endpoints(line, b, (point_t *)bx_next->object);
value = distance_from_point_to_line(a, line);
if (p == NULL || q == NULL || value < dist) {
p = b;
q = a;
dist = value;
}
line_clear(line);
bx = bx_next;
}
} while (!((ax == rx && bx == lx) || (bx == rx && ax == lx)));
for (x = chull->tail->next; x != chull->head; x = x->next)
x->spare = NULL;
line_set_endpoints(width, p, q);
//line_assign(width, p, q);
free(ang);
return dist;
}
