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Fix the support for 0x0 sized terminals (adb shell)

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This commit is contained in:
pancake 2014-09-24 03:17:43 +02:00
parent 0931f502ed
commit a18f7819d9
4 changed files with 47 additions and 14 deletions
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19
libr/cons/canvas.c
View File

@ -12,7 +12,7 @@ R_API void r_cons_canvas_free (RConsCanvas *c) {
R_API void r_cons_canvas_clear (RConsCanvas *c) {
int y;
if (c->b) {
if (c && c->b) {
memset (c->b, '\n', c->blen);
c->b[c->blen] = 0;
for (y = 0; y<c->h; y++)
@ -43,6 +43,7 @@ R_API RConsCanvas* r_cons_canvas_new (int w, int h) {
R_API int r_cons_canvas_gotoxy(RConsCanvas *c, int x, int y) {
int ret = R_TRUE;
if (!c) return 0;
x += c->sx;
y += c->sy;
if (x >= c->w) {
@ -85,7 +86,10 @@ static char *getrow (char *p, char **n) {
static char *prefixline(RConsCanvas *c, int *left) {
int x;
char *p = c->b + (c->y * c->w);
char *p;
if (!c)
return NULL;
p = c->b + (c->y * c->w);
for (x = 0; x<c->x; x++) {
if (p[x] == '\n')
p[x] = ' ';
@ -128,10 +132,11 @@ R_API void r_cons_canvas_write(RConsCanvas *c, const char *_s) {
R_API char *r_cons_canvas_to_string(RConsCanvas *c) {
int x, y, olen = 0;
char *o = malloc (c->w*(c->h+1));
char *b = c->b;
if (!o)
return NULL;
char *o, *b;
if (!c) return NULL;
b = c->b;
o = malloc (c->w*(c->h+1));
if (!o) return NULL;
for (y = 0; y<c->h; y++) {
for (x = 0; x<c->w; x++) {
int p = x + (y*c->w);
@ -156,7 +161,7 @@ R_API void r_cons_canvas_print(RConsCanvas *c) {
R_API int r_cons_canvas_resize(RConsCanvas *c, int w, int h) {
int blen = (w+1)*h;
char *b = NULL;
if (w < 0) return R_FALSE;
if (!c || w < 0) return R_FALSE;
b = realloc (c->b, blen+1);
if (!b) return R_FALSE;
c->blen = blen;

18
libr/cons/cons.c
View File

@ -579,6 +579,7 @@ R_API int r_cons_get_cursor(int *rows) {
return col;
}
// XXX: if this function returns <0 in rows or cols expect MAYHEM
R_API int r_cons_get_size(int *rows) {
#if EMSCRIPTEN
I.columns = 80;
@ -614,12 +615,25 @@ R_API int r_cons_get_size(int *rows) {
I.rows = 23;
}
#endif
if (rows)
*rows = I.rows;
#if SIMULATE_ADB_SHELL
I.rows = 0;
I.columns = 0;
#endif
#if SIMULATE_MAYHEM
// expect tons of crashes
I.rows = -1;
I.columns = -1;
#endif
if (I.rows<0)
I.rows = 0;
if (I.columns<0)
I.columns = 0;
if (I.force_columns) I.columns = I.force_columns;
if (I.force_rows) I.rows = I.force_rows;
if (I.fix_columns) I.columns += I.fix_columns;
if (I.fix_rows) I.rows += I.fix_rows;
if (rows)
*rows = I.rows;
I.rows = R_MAX (0, I.rows);
return R_MAX (0, I.columns);
}

9
libr/core/graph.c
View File

@ -46,6 +46,8 @@ static Edge edges[] = {
static void Node_print(RConsCanvas *can, Node *n, int cur) {
char title[128];
if (!can)
return;
n->w = r_str_bounds (n->text, &n->h);
n->w += 4;
n->h += 3;
@ -322,6 +324,9 @@ static void r_core_graph_refresh (RCore *core) {
char title[128];
int i, h, w = r_cons_get_size (&h);
r_cons_clear00 ();
if (!can) {
return;
}
r_cons_canvas_resize (can, w, h);
r_cons_canvas_clear (can);
@ -362,6 +367,10 @@ R_API int r_core_visual_graph(RCore *core, RAnalFunction *_fcn) {
}
w = r_cons_get_size (&h);
can = r_cons_canvas_new (w-1, h-1);
if (!can) {
eprintf ("Cannot create RCons.canvas context\n");
return R_FALSE;
}
n_nodes = bbNodes (core, fcn, &nodes);
if (!nodes) {

5
libr/core/visual.c
View File

@ -1393,6 +1393,11 @@ R_API int r_core_visual(RCore *core, const char *input) {
ut64 scrseek;
int wheel, flags, ch;
if (r_cons_get_size(&ch)<1 || ch<1) {
eprintf ("Cannot create Visual context. Use scr.fix_{columns|rows}\n");
return 0;
}
obs = core->blocksize;
//r_cons_set_cup (R_TRUE);