#define TM_PUTTY (0xFFFF)
+#define UPDATE_DELAY ((TICKSPERSEC+49)/50)/* ticks to defer window update */
+#define TBLINK_DELAY ((TICKSPERSEC*9+19)/20)/* ticks between text blinks*/
+#define CBLINK_DELAY (CURSORBLINK) /* ticks between cursor blinks */
+#define VBELL_DELAY (VBELL_TIMEOUT) /* visual bell timeout in ticks */
+
#define compatibility(x) \
if ( ((CL_##x)&term->compatibility_level) == 0 ) { \
term->termstate=TOPLEVEL; \
#define has_compat(x) ( ((CL_##x)&term->compatibility_level) != 0 )
+const char sco2ansicolour[] = { 0, 4, 2, 6, 1, 5, 3, 7 };
+
#define sel_nl_sz (sizeof(sel_nl)/sizeof(wchar_t))
const wchar_t sel_nl[] = SEL_NL;
* then we must look one space further to the left.
*/
#define UCSGET(a, x) \
- ( (x)>0 && ((a)[(x)] & (CHAR_MASK | CSET_MASK)) == UCSWIDE ? \
- (a)[(x)-1] : (a)[(x)] )
+ ( (x)>0 && (a)[(x)].chr == UCSWIDE ? (a)[(x)-1].chr : (a)[(x)].chr )
+
+/*
+ * Detect the various aliases of U+0020 SPACE.
+ */
+#define IS_SPACE_CHR(chr) \
+ ((chr) == 0x20 || (DIRECT_CHAR(chr) && ((chr) & 0xFF) == 0x20))
+
+/*
+ * Spot magic CSETs.
+ */
+#define CSET_OF(chr) (DIRECT_CHAR(chr)||DIRECT_FONT(chr) ? (chr)&CSET_MASK : 0)
/*
* Internal prototypes.
*/
-static unsigned long *resizeline(unsigned long *, int);
-static unsigned long *lineptr(Terminal *, int, int);
+static void resizeline(Terminal *, termline *, int);
+static termline *lineptr(Terminal *, int, int, int);
+static void unlineptr(termline *);
static void do_paint(Terminal *, Context, int);
static void erase_lots(Terminal *, int, int, int);
static void swap_screen(Terminal *, int, int, int);
static void scroll_display(Terminal *, int, int, int);
#endif /* OPTIMISE_SCROLL */
+static termline *newline(Terminal *term, int cols, int bce)
+{
+ termline *line;
+ int j;
+
+ line = snew(termline);
+ line->chars = snewn(cols, termchar);
+ for (j = 0; j < cols; j++)
+ line->chars[j] = (bce ? term->erase_char : term->basic_erase_char);
+ line->cols = line->size = cols;
+ line->lattr = LATTR_NORM;
+ line->temporary = FALSE;
+ line->cc_free = 0;
+
+ return line;
+}
+
+static void freeline(termline *line)
+{
+ if (line) {
+ sfree(line->chars);
+ sfree(line);
+ }
+}
+
+static void unlineptr(termline *line)
+{
+ if (line->temporary)
+ freeline(line);
+}
+
+/*
+ * Diagnostic function: verify that a termline has a correct
+ * combining character structure.
+ *
+ * XXX-REMOVE-BEFORE-RELEASE: This is a performance-intensive
+ * check. Although it's currently really useful for getting all the
+ * bugs out of the new cc stuff, it will want to be absent when we
+ * make a proper release.
+ */
+static void cc_check(termline *line)
+{
+ unsigned char *flags;
+ int i, j;
+
+ assert(line->size >= line->cols);
+
+ flags = snewn(line->size, unsigned char);
+
+ for (i = 0; i < line->size; i++)
+ flags[i] = (i < line->cols);
+
+ for (i = 0; i < line->cols; i++) {
+ j = i;
+ while (line->chars[j].cc_next) {
+ j += line->chars[j].cc_next;
+ assert(j >= line->cols && j < line->size);
+ assert(!flags[j]);
+ flags[j] = TRUE;
+ }
+ }
+
+ j = line->cc_free;
+ if (j) {
+ while (1) {
+ assert(j >= line->cols && j < line->size);
+ assert(!flags[j]);
+ flags[j] = TRUE;
+ if (line->chars[j].cc_next)
+ j += line->chars[j].cc_next;
+ else
+ break;
+ }
+ }
+
+ j = 0;
+ for (i = 0; i < line->size; i++)
+ j += (flags[i] != 0);
+
+ assert(j == line->size);
+
+ sfree(flags);
+}
+
+/*
+ * Add a combining character to a character cell.
+ */
+static void add_cc(termline *line, int col, unsigned long chr)
+{
+ int newcc;
+
+ assert(col >= 0 && col < line->cols);
+
+ /*
+ * Start by extending the cols array if the free list is empty.
+ */
+ if (!line->cc_free) {
+ int n = line->size;
+ line->size += 16 + (line->size - line->cols) / 2;
+ line->chars = sresize(line->chars, line->size, termchar);
+ line->cc_free = n;
+ while (n < line->size) {
+ if (n+1 < line->size)
+ line->chars[n].cc_next = 1;
+ else
+ line->chars[n].cc_next = 0;
+ n++;
+ }
+ }
+
+ /*
+ * Now walk the cc list of the cell in question.
+ */
+ while (line->chars[col].cc_next)
+ col += line->chars[col].cc_next;
+
+ /*
+ * `col' now points at the last cc currently in this cell; so
+ * we simply add another one.
+ */
+ newcc = line->cc_free;
+ if (line->chars[newcc].cc_next)
+ line->cc_free = newcc + line->chars[newcc].cc_next;
+ else
+ line->cc_free = 0;
+ line->chars[newcc].cc_next = 0;
+ line->chars[newcc].chr = chr;
+ line->chars[col].cc_next = newcc - col;
+
+ cc_check(line); /* XXX-REMOVE-BEFORE-RELEASE */
+}
+
+/*
+ * Clear the combining character list in a character cell.
+ */
+static void clear_cc(termline *line, int col)
+{
+ int oldfree, origcol = col;
+
+ assert(col >= 0 && col < line->cols);
+
+ if (!line->chars[col].cc_next)
+ return; /* nothing needs doing */
+
+ oldfree = line->cc_free;
+ line->cc_free = col + line->chars[col].cc_next;
+ while (line->chars[col].cc_next)
+ col += line->chars[col].cc_next;
+ if (oldfree)
+ line->chars[col].cc_next = oldfree - col;
+ else
+ line->chars[col].cc_next = 0;
+
+ line->chars[origcol].cc_next = 0;
+
+ cc_check(line); /* XXX-REMOVE-BEFORE-RELEASE */
+}
+
+/*
+ * Compare two character cells for equality. Special case required
+ * in do_paint() where we override what we expect the chr and attr
+ * fields to be.
+ */
+static int termchars_equal_override(termchar *a, termchar *b,
+ unsigned long bchr, unsigned long battr)
+{
+ /* FULL-TERMCHAR */
+ if (a->chr != bchr)
+ return FALSE;
+ if ((a->attr &~ DATTR_MASK) != (battr &~ DATTR_MASK))
+ return FALSE;
+ while (a->cc_next || b->cc_next) {
+ if (!a->cc_next || !b->cc_next)
+ return FALSE; /* one cc-list ends, other does not */
+ a += a->cc_next;
+ b += b->cc_next;
+ if (a->chr != b->chr)
+ return FALSE;
+ }
+ return TRUE;
+}
+
+static int termchars_equal(termchar *a, termchar *b)
+{
+ return termchars_equal_override(a, b, b->chr, b->attr);
+}
+
+/*
+ * Copy a character cell. (Requires a pointer to the destination
+ * termline, so as to access its free list.)
+ */
+static void copy_termchar(termline *destline, int x, termchar *src)
+{
+ clear_cc(destline, x);
+
+ destline->chars[x] = *src; /* copy everything except cc-list */
+ destline->chars[x].cc_next = 0; /* and make sure this is zero */
+
+ while (src->cc_next) {
+ src += src->cc_next;
+ add_cc(destline, x, src->chr);
+ }
+
+ cc_check(destline); /* XXX-REMOVE-BEFORE-RELEASE */
+}
+
+/*
+ * Move a character cell within its termline.
+ */
+static void move_termchar(termline *line, termchar *dest, termchar *src)
+{
+ /* First clear the cc list from the original char, just in case. */
+ clear_cc(line, dest - line->chars);
+
+ /* Move the character cell and adjust its cc_next. */
+ *dest = *src; /* copy everything except cc-list */
+ if (src->cc_next)
+ dest->cc_next = src->cc_next - (dest-src);
+
+ /* Ensure the original cell doesn't have a cc list. */
+ src->cc_next = 0;
+
+ cc_check(line); /* XXX-REMOVE-BEFORE-RELEASE */
+}
+
+/*
+ * Compress and decompress a termline into an RLE-based format for
+ * storing in scrollback. (Since scrollback almost never needs to
+ * be modified and exists in huge quantities, this is a sensible
+ * tradeoff, particularly since it allows us to continue adding
+ * features to the main termchar structure without proportionally
+ * bloating the terminal emulator's memory footprint unless those
+ * features are in constant use.)
+ */
+struct buf {
+ unsigned char *data;
+ int len, size;
+};
+static void add(struct buf *b, unsigned char c)
+{
+ if (b->len >= b->size) {
+ b->size = (b->len * 3 / 2) + 512;
+ b->data = sresize(b->data, b->size, unsigned char);
+ }
+ b->data[b->len++] = c;
+}
+static int get(struct buf *b)
+{
+ return b->data[b->len++];
+}
+static void makerle(struct buf *b, termline *ldata,
+ void (*makeliteral)(struct buf *b, termchar *c,
+ unsigned long *state))
+{
+ int hdrpos, hdrsize, n, prevlen, prevpos, thislen, thispos, prev2;
+ termchar *c = ldata->chars;
+ unsigned long state = 0, oldstate;
+
+ n = ldata->cols;
+
+ hdrpos = b->len;
+ hdrsize = 0;
+ add(b, 0);
+ prevlen = prevpos = 0;
+ prev2 = FALSE;
+
+ while (n-- > 0) {
+ thispos = b->len;
+ makeliteral(b, c++, &state);
+ thislen = b->len - thispos;
+ if (thislen == prevlen &&
+ !memcmp(b->data + prevpos, b->data + thispos, thislen)) {
+ /*
+ * This literal precisely matches the previous one.
+ * Turn it into a run if it's worthwhile.
+ *
+ * With one-byte literals, it costs us two bytes to
+ * encode a run, plus another byte to write the header
+ * to resume normal output; so a three-element run is
+ * neutral, and anything beyond that is unconditionally
+ * worthwhile. With two-byte literals or more, even a
+ * 2-run is a win.
+ */
+ if (thislen > 1 || prev2) {
+ int runpos, runlen;
+
+ /*
+ * It's worth encoding a run. Start at prevpos,
+ * unless hdrsize==0 in which case we can back up
+ * another one and start by overwriting hdrpos.
+ */
+
+ hdrsize--; /* remove the literal at prevpos */
+ if (prev2) {
+ assert(hdrsize > 0);
+ hdrsize--;
+ prevpos -= prevlen;/* and possibly another one */
+ }
+
+ if (hdrsize == 0) {
+ assert(prevpos == hdrpos + 1);
+ runpos = hdrpos;
+ b->len = prevpos+prevlen;
+ } else {
+ memmove(b->data + prevpos+1, b->data + prevpos, prevlen);
+ runpos = prevpos;
+ b->len = prevpos+prevlen+1;
+ /*
+ * Terminate the previous run of ordinary
+ * literals.
+ */
+ assert(hdrsize >= 1 && hdrsize <= 128);
+ b->data[hdrpos] = hdrsize - 1;
+ }
+
+ runlen = prev2 ? 3 : 2;
+
+ while (n > 0 && runlen < 129) {
+ int tmppos, tmplen;
+ tmppos = b->len;
+ oldstate = state;
+ makeliteral(b, c, &state);
+ tmplen = b->len - tmppos;
+ b->len = tmppos;
+ if (tmplen != thislen ||
+ memcmp(b->data + runpos+1, b->data + tmppos, tmplen)) {
+ state = oldstate;
+ break; /* run over */
+ }
+ n--, c++, runlen++;
+ }
+
+ assert(runlen >= 2 && runlen <= 129);
+ b->data[runpos] = runlen + 0x80 - 2;
+
+ hdrpos = b->len;
+ hdrsize = 0;
+ add(b, 0);
+ /* And ensure this run doesn't interfere with the next. */
+ prevlen = prevpos = 0;
+ prev2 = FALSE;
+
+ continue;
+ } else {
+ /*
+ * Just flag that the previous two literals were
+ * identical, in case we find a third identical one
+ * we want to turn into a run.
+ */
+ prev2 = TRUE;
+ prevlen = thislen;
+ prevpos = thispos;
+ }
+ } else {
+ prev2 = FALSE;
+ prevlen = thislen;
+ prevpos = thispos;
+ }
+
+ /*
+ * This character isn't (yet) part of a run. Add it to
+ * hdrsize.
+ */
+ hdrsize++;
+ if (hdrsize == 128) {
+ b->data[hdrpos] = hdrsize - 1;
+ hdrpos = b->len;
+ hdrsize = 0;
+ add(b, 0);
+ prevlen = prevpos = 0;
+ prev2 = FALSE;
+ }
+ }
+
+ /*
+ * Clean up.
+ */
+ if (hdrsize > 0) {
+ assert(hdrsize <= 128);
+ b->data[hdrpos] = hdrsize - 1;
+ } else {
+ b->len = hdrpos;
+ }
+}
+static void makeliteral_chr(struct buf *b, termchar *c, unsigned long *state)
+{
+ /*
+ * My encoding for characters is UTF-8-like, in that it stores
+ * 7-bit ASCII in one byte and uses high-bit-set bytes as
+ * introducers to indicate a longer sequence. However, it's
+ * unlike UTF-8 in that it doesn't need to be able to
+ * resynchronise, and therefore I don't want to waste two bits
+ * per byte on having recognisable continuation characters.
+ * Also I don't want to rule out the possibility that I may one
+ * day use values 0x80000000-0xFFFFFFFF for interesting
+ * purposes, so unlike UTF-8 I need a full 32-bit range.
+ * Accordingly, here is my encoding:
+ *
+ * 00000000-0000007F: 0xxxxxxx (but see below)
+ * 00000080-00003FFF: 10xxxxxx xxxxxxxx
+ * 00004000-001FFFFF: 110xxxxx xxxxxxxx xxxxxxxx
+ * 00200000-0FFFFFFF: 1110xxxx xxxxxxxx xxxxxxxx xxxxxxxx
+ * 10000000-FFFFFFFF: 11110ZZZ xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
+ *
+ * (`Z' is like `x' but is always going to be zero since the
+ * values I'm encoding don't go above 2^32. In principle the
+ * five-byte form of the encoding could extend to 2^35, and
+ * there could be six-, seven-, eight- and nine-byte forms as
+ * well to allow up to 64-bit values to be encoded. But that's
+ * completely unnecessary for these purposes!)
+ *
+ * The encoding as written above would be very simple, except
+ * that 7-bit ASCII can occur in several different ways in the
+ * terminal data; sometimes it crops up in the D800 page
+ * (CSET_ASCII) but at other times it's in the 0000 page (real
+ * Unicode). Therefore, this encoding is actually _stateful_:
+ * the one-byte encoding of 00-7F actually indicates `reuse the
+ * upper three bytes of the last character', and to encode an
+ * absolute value of 00-7F you need to use the two-byte form
+ * instead.
+ */
+ if ((c->chr & ~0x7F) == *state) {
+ add(b, (unsigned char)(c->chr & 0x7F));
+ } else if (c->chr < 0x4000) {
+ add(b, (unsigned char)(((c->chr >> 8) & 0x3F) | 0x80));
+ add(b, (unsigned char)(c->chr & 0xFF));
+ } else if (c->chr < 0x200000) {
+ add(b, (unsigned char)(((c->chr >> 16) & 0x1F) | 0xC0));
+ add(b, (unsigned char)((c->chr >> 8) & 0xFF));
+ add(b, (unsigned char)(c->chr & 0xFF));
+ } else if (c->chr < 0x10000000) {
+ add(b, (unsigned char)(((c->chr >> 24) & 0x0F) | 0xE0));
+ add(b, (unsigned char)((c->chr >> 16) & 0xFF));
+ add(b, (unsigned char)((c->chr >> 8) & 0xFF));
+ add(b, (unsigned char)(c->chr & 0xFF));
+ } else {
+ add(b, 0xF0);
+ add(b, (unsigned char)((c->chr >> 24) & 0xFF));
+ add(b, (unsigned char)((c->chr >> 16) & 0xFF));
+ add(b, (unsigned char)((c->chr >> 8) & 0xFF));
+ add(b, (unsigned char)(c->chr & 0xFF));
+ }
+ *state = c->chr & ~0xFF;
+}
+static void makeliteral_attr(struct buf *b, termchar *c, unsigned long *state)
+{
+ /*
+ * My encoding for attributes is 16-bit-granular and assumes
+ * that the top bit of the word is never required. I either
+ * store a two-byte value with the top bit clear (indicating
+ * just that value), or a four-byte value with the top bit set
+ * (indicating the same value with its top bit clear).
+ *
+ * However, first I permute the bits of the attribute value, so
+ * that the eight bits of colour (four in each of fg and bg)
+ * which are never non-zero unless xterm 256-colour mode is in
+ * use are placed higher up the word than everything else. This
+ * ensures that attribute values remain 16-bit _unless_ the
+ * user uses extended colour.
+ */
+ unsigned attr, colourbits;
+
+ attr = c->attr;
+
+ assert(ATTR_BGSHIFT > ATTR_FGSHIFT);
+
+ colourbits = (attr >> (ATTR_BGSHIFT + 4)) & 0xF;
+ colourbits <<= 4;
+ colourbits |= (attr >> (ATTR_FGSHIFT + 4)) & 0xF;
+
+ attr = (((attr >> (ATTR_BGSHIFT + 8)) << (ATTR_BGSHIFT + 4)) |
+ (attr & ((1 << (ATTR_BGSHIFT + 4))-1)));
+ attr = (((attr >> (ATTR_FGSHIFT + 8)) << (ATTR_FGSHIFT + 4)) |
+ (attr & ((1 << (ATTR_FGSHIFT + 4))-1)));
+
+ attr |= (colourbits << (32-9));
+
+ if (attr < 0x8000) {
+ add(b, (unsigned char)((attr >> 8) & 0xFF));
+ add(b, (unsigned char)(attr & 0xFF));
+ } else {
+ add(b, (unsigned char)(((attr >> 24) & 0x7F) | 0x80));
+ add(b, (unsigned char)((attr >> 16) & 0xFF));
+ add(b, (unsigned char)((attr >> 8) & 0xFF));
+ add(b, (unsigned char)(attr & 0xFF));
+ }
+}
+static void makeliteral_cc(struct buf *b, termchar *c, unsigned long *state)
+{
+ /*
+ * For combining characters, I just encode a bunch of ordinary
+ * chars using makeliteral_chr, and terminate with a \0
+ * character (which I know won't come up as a combining char
+ * itself).
+ *
+ * I don't use the stateful encoding in makeliteral_chr.
+ */
+ unsigned long zstate;
+ termchar z;
+
+ while (c->cc_next) {
+ c += c->cc_next;
+
+ assert(c->chr != 0);
+
+ zstate = 0;
+ makeliteral_chr(b, c, &zstate);
+ }
+
+ z.chr = 0;
+ zstate = 0;
+ makeliteral_chr(b, &z, &zstate);
+}
+
+static termline *decompressline(unsigned char *data, int *bytes_used);
+
+static unsigned char *compressline(termline *ldata)
+{
+ struct buf buffer = { NULL, 0, 0 }, *b = &buffer;
+
+ /*
+ * First, store the column count, 7 bits at a time, least
+ * significant `digit' first, with the high bit set on all but
+ * the last.
+ */
+ {
+ int n = ldata->cols;
+ while (n >= 128) {
+ add(b, (unsigned char)((n & 0x7F) | 0x80));
+ n >>= 7;
+ }
+ add(b, (unsigned char)(n));
+ }
+
+ /*
+ * Next store the lattrs; same principle.
+ */
+ {
+ int n = ldata->lattr;
+ while (n >= 128) {
+ add(b, (unsigned char)((n & 0x7F) | 0x80));
+ n >>= 7;
+ }
+ add(b, (unsigned char)(n));
+ }
+
+ /*
+ * Now we store a sequence of separate run-length encoded
+ * fragments, each containing exactly as many symbols as there
+ * are columns in the ldata.
+ *
+ * All of these have a common basic format:
+ *
+ * - a byte 00-7F indicates that X+1 literals follow it
+ * - a byte 80-FF indicates that a single literal follows it
+ * and expects to be repeated (X-0x80)+2 times.
+ *
+ * The format of the `literals' varies between the fragments.
+ */
+ makerle(b, ldata, makeliteral_chr);
+ makerle(b, ldata, makeliteral_attr);
+ makerle(b, ldata, makeliteral_cc);
+
+ /*
+ * Diagnostics: ensure that the compressed data really does
+ * decompress to the right thing.
+ *
+ * XXX-REMOVE-BEFORE-RELEASE: This is a bit performance-heavy
+ * to be leaving in production code.
+ */
+#ifndef CHECK_SB_COMPRESSION
+ {
+ int dused;
+ termline *dcl;
+ int i;
+
+#ifdef DIAGNOSTIC_SB_COMPRESSION
+ for (i = 0; i < b->len; i++) {
+ printf(" %02x ", b->data[i]);
+ }
+ printf("\n");
+#endif
+
+ dcl = decompressline(b->data, &dused);
+ assert(b->len == dused);
+ assert(ldata->cols == dcl->cols);
+ assert(ldata->lattr == dcl->lattr);
+ for (i = 0; i < ldata->cols; i++)
+ assert(termchars_equal(&ldata->chars[i], &dcl->chars[i]));
+
+#ifdef DIAGNOSTIC_SB_COMPRESSION
+ printf("%d cols (%d bytes) -> %d bytes (factor of %g)\n",
+ ldata->cols, 4 * ldata->cols, dused,
+ (double)dused / (4 * ldata->cols));
+#endif
+
+ freeline(dcl);
+ }
+#endif
+
+ /*
+ * Trim the allocated memory so we don't waste any, and return.
+ */
+ return sresize(b->data, b->len, unsigned char);
+}
+
+static void readrle(struct buf *b, termline *ldata,
+ void (*readliteral)(struct buf *b, termchar *c,
+ termline *ldata, unsigned long *state))
+{
+ int n = 0;
+ unsigned long state = 0;
+
+ while (n < ldata->cols) {
+ int hdr = get(b);
+
+ if (hdr >= 0x80) {
+ /* A run. */
+
+ int pos = b->len, count = hdr + 2 - 0x80;
+ while (count--) {
+ assert(n < ldata->cols);
+ b->len = pos;
+ readliteral(b, ldata->chars + n, ldata, &state);
+ n++;
+ }
+ } else {
+ /* Just a sequence of consecutive literals. */
+
+ int count = hdr + 1;
+ while (count--) {
+ assert(n < ldata->cols);
+ readliteral(b, ldata->chars + n, ldata, &state);
+ n++;
+ }
+ }
+ }
+
+ assert(n == ldata->cols);
+}
+static void readliteral_chr(struct buf *b, termchar *c, termline *ldata,
+ unsigned long *state)
+{
+ int byte;
+
+ /*
+ * 00000000-0000007F: 0xxxxxxx
+ * 00000080-00003FFF: 10xxxxxx xxxxxxxx
+ * 00004000-001FFFFF: 110xxxxx xxxxxxxx xxxxxxxx
+ * 00200000-0FFFFFFF: 1110xxxx xxxxxxxx xxxxxxxx xxxxxxxx
+ * 10000000-FFFFFFFF: 11110ZZZ xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx
+ */
+
+ byte = get(b);
+ if (byte < 0x80) {
+ c->chr = byte | *state;
+ } else if (byte < 0xC0) {
+ c->chr = (byte &~ 0xC0) << 8;
+ c->chr |= get(b);
+ } else if (byte < 0xE0) {
+ c->chr = (byte &~ 0xE0) << 16;
+ c->chr |= get(b) << 8;
+ c->chr |= get(b);
+ } else if (byte < 0xF0) {
+ c->chr = (byte &~ 0xF0) << 24;
+ c->chr |= get(b) << 16;
+ c->chr |= get(b) << 8;
+ c->chr |= get(b);
+ } else {
+ assert(byte == 0xF0);
+ c->chr = get(b) << 24;
+ c->chr |= get(b) << 16;
+ c->chr |= get(b) << 8;
+ c->chr |= get(b);
+ }
+ *state = c->chr & ~0xFF;
+}
+static void readliteral_attr(struct buf *b, termchar *c, termline *ldata,
+ unsigned long *state)
+{
+ unsigned val, attr, colourbits;
+
+ val = get(b) << 8;
+ val |= get(b);
+
+ if (val >= 0x8000) {
+ val &= ~0x8000;
+ val <<= 16;
+ val |= get(b) << 8;
+ val |= get(b);
+ }
+
+ colourbits = (val >> (32-9)) & 0xFF;
+ attr = (val & ((1<<(32-9))-1));
+
+ attr = (((attr >> (ATTR_FGSHIFT + 4)) << (ATTR_FGSHIFT + 8)) |
+ (attr & ((1 << (ATTR_FGSHIFT + 4))-1)));
+ attr = (((attr >> (ATTR_BGSHIFT + 4)) << (ATTR_BGSHIFT + 8)) |
+ (attr & ((1 << (ATTR_BGSHIFT + 4))-1)));
+
+ attr |= (colourbits >> 4) << (ATTR_BGSHIFT + 4);
+ attr |= (colourbits & 0xF) << (ATTR_FGSHIFT + 4);
+
+ c->attr = attr;
+}
+static void readliteral_cc(struct buf *b, termchar *c, termline *ldata,
+ unsigned long *state)
+{
+ termchar n;
+ unsigned long zstate;
+ int x = c - ldata->chars;
+
+ c->cc_next = 0;
+
+ while (1) {
+ zstate = 0;
+ readliteral_chr(b, &n, ldata, &zstate);
+ if (!n.chr)
+ break;
+ add_cc(ldata, x, n.chr);
+ }
+}
+
+static termline *decompressline(unsigned char *data, int *bytes_used)
+{
+ int ncols, byte, shift;
+ struct buf buffer, *b = &buffer;
+ termline *ldata;
+
+ b->data = data;
+ b->len = 0;
+
+ /*
+ * First read in the column count.
+ */
+ ncols = shift = 0;
+ do {
+ byte = get(b);
+ ncols |= (byte & 0x7F) << shift;
+ shift += 7;
+ } while (byte & 0x80);
+
+ /*
+ * Now create the output termline.
+ */
+ ldata = snew(termline);
+ ldata->chars = snewn(ncols, termchar);
+ ldata->cols = ldata->size = ncols;
+ ldata->temporary = TRUE;
+ ldata->cc_free = 0;
+
+ /*
+ * We must set all the cc pointers in ldata->chars to 0 right
+ * now, so that cc diagnostics that verify the integrity of the
+ * whole line will make sense while we're in the middle of
+ * building it up.
+ */
+ {
+ int i;
+ for (i = 0; i < ldata->cols; i++)
+ ldata->chars[i].cc_next = 0;
+ }
+
+ /*
+ * Now read in the lattr.
+ */
+ ldata->lattr = shift = 0;
+ do {
+ byte = get(b);
+ ldata->lattr |= (byte & 0x7F) << shift;
+ shift += 7;
+ } while (byte & 0x80);
+
+ /*
+ * Now we read in each of the RLE streams in turn.
+ */
+ readrle(b, ldata, readliteral_chr);
+ readrle(b, ldata, readliteral_attr);
+ readrle(b, ldata, readliteral_cc);
+
+ /* Return the number of bytes read, for diagnostic purposes. */
+ if (bytes_used)
+ *bytes_used = b->len;
+
+ return ldata;
+}
+
/*
* Resize a line to make it `cols' columns wide.
*/
-static unsigned long *resizeline(unsigned long *line, int cols)
+static void resizeline(Terminal *term, termline *line, int cols)
{
- int i, oldlen;
- unsigned long lineattrs;
+ int i, oldcols;
+
+ if (line->cols != cols) {
+
+ oldcols = line->cols;
- if (line[0] != (unsigned long)cols) {
/*
* This line is the wrong length, which probably means it
* hasn't been accessed since a resize. Resize it now.
+ *
+ * First, go through all the characters that will be thrown
+ * out in the resize (if we're shrinking the line) and
+ * return their cc lists to the cc free list.
*/
- oldlen = line[0];
- lineattrs = line[oldlen + 1];
- line = sresize(line, 2 + cols, TTYPE);
- line[0] = cols;
- for (i = oldlen; i < cols; i++)
- line[i + 1] = ERASE_CHAR;
- line[cols + 1] = lineattrs & LATTR_MODE;
- }
+ for (i = cols; i < oldcols; i++)
+ clear_cc(line, i);
- return line;
+ /*
+ * If we're shrinking the line, we now bodily move the
+ * entire cc section from where it started to where it now
+ * needs to be. (We have to do this before the resize, so
+ * that the data we're copying is still there. However, if
+ * we're expanding, we have to wait until _after_ the
+ * resize so that the space we're copying into is there.)
+ */
+ if (cols < oldcols)
+ memmove(line->chars + cols, line->chars + oldcols,
+ (line->size - line->cols) * TSIZE);
+
+ /*
+ * Now do the actual resize, leaving the _same_ amount of
+ * cc space as there was to begin with.
+ */
+ line->size += cols - oldcols;
+ line->chars = sresize(line->chars, line->size, TTYPE);
+ line->cols = cols;
+
+ /*
+ * If we're expanding the line, _now_ we move the cc
+ * section.
+ */
+ if (cols > oldcols)
+ memmove(line->chars + cols, line->chars + oldcols,
+ (line->size - line->cols) * TSIZE);
+
+ /*
+ * Go through what's left of the original line, and adjust
+ * the first cc_next pointer in each list. (All the
+ * subsequent ones are still valid because they are
+ * relative offsets within the cc block.) Also do the same
+ * to the head of the cc_free list.
+ */
+ for (i = 0; i < oldcols && i < cols; i++)
+ if (line->chars[i].cc_next)
+ line->chars[i].cc_next += cols - oldcols;
+ if (line->cc_free)
+ line->cc_free += cols - oldcols;
+
+ /*
+ * And finally fill in the new space with erase chars. (We
+ * don't have to worry about cc lists here, because we
+ * _know_ the erase char doesn't have one.)
+ */
+ for (i = oldcols; i < cols; i++)
+ line->chars[i] = term->basic_erase_char;
+
+ cc_check(line); /* XXX-REMOVE-BEFORE-RELEASE */
+ }
}
/*
* whether the y coordinate is non-negative or negative
* (respectively).
*/
-static unsigned long *lineptr(Terminal *term, int y, int lineno)
+static termline *lineptr(Terminal *term, int y, int lineno, int screen)
{
- unsigned long *line, *newline;
+ termline *line;
tree234 *whichtree;
int treeindex;
treeindex = y;
} else {
int altlines = 0;
+
+ assert(!screen);
+
if (term->cfg.erase_to_scrollback &&
term->alt_which && term->alt_screen) {
altlines = term->alt_sblines;
/* treeindex = y + count234(term->alt_screen); */
}
}
- line = index234(whichtree, treeindex);
+ if (whichtree == term->scrollback) {
+ unsigned char *cline = index234(whichtree, treeindex);
+ line = decompressline(cline, NULL);
+ } else {
+ line = index234(whichtree, treeindex);
+ }
/* We assume that we don't screw up and retrieve something out of range. */
assert(line != NULL);
- newline = resizeline(line, term->cols);
- if (newline != line) {
- delpos234(whichtree, treeindex);
- addpos234(whichtree, newline, treeindex);
- line = newline;
+ resizeline(term, line, term->cols);
+ /* FIXME: should we sort the compressed scrollback out here? */
+
+ return line;
+}
+
+#define lineptr(x) (lineptr)(term,x,__LINE__,FALSE)
+#define scrlineptr(x) (lineptr)(term,x,__LINE__,TRUE)
+
+static void term_schedule_tblink(Terminal *term);
+static void term_schedule_cblink(Terminal *term);
+
+static void term_timer(void *ctx, long now)
+{
+ Terminal *term = (Terminal *)ctx;
+ int update = FALSE;
+
+ if (term->tblink_pending && now - term->next_tblink >= 0) {
+ term->tblinker = !term->tblinker;
+ term->tblink_pending = FALSE;
+ term_schedule_tblink(term);
+ update = TRUE;
}
- return line + 1;
+ if (term->cblink_pending && now - term->next_cblink >= 0) {
+ term->cblinker = !term->cblinker;
+ term->cblink_pending = FALSE;
+ term_schedule_cblink(term);
+ update = TRUE;
+ }
+
+ if (term->in_vbell && now - term->vbell_end >= 0) {
+ term->in_vbell = FALSE;
+ update = TRUE;
+ }
+
+ if (update ||
+ (term->window_update_pending && now - term->next_update >= 0))
+ term_update(term);
}
-#define lineptr(x) lineptr(term,x,__LINE__)
+static void term_schedule_update(Terminal *term)
+{
+ if (!term->window_update_pending) {
+ term->window_update_pending = TRUE;
+ term->next_update = schedule_timer(UPDATE_DELAY, term_timer, term);
+ }
+}
+
+/*
+ * Call this whenever the terminal window state changes, to queue
+ * an update.
+ */
+static void seen_disp_event(Terminal *term)
+{
+ term->seen_disp_event = TRUE; /* for scrollback-reset-on-activity */
+ term_schedule_update(term);
+}
+
+/*
+ * Call when the terminal's blinking-text settings change, or when
+ * a text blink has just occurred.
+ */
+static void term_schedule_tblink(Terminal *term)
+{
+ if (term->blink_is_real) {
+ if (!term->tblink_pending)
+ term->next_tblink = schedule_timer(TBLINK_DELAY, term_timer, term);
+ term->tblink_pending = TRUE;
+ } else {
+ term->tblinker = 1; /* reset when not in use */
+ term->tblink_pending = FALSE;
+ }
+}
+
+/*
+ * Likewise with cursor blinks.
+ */
+static void term_schedule_cblink(Terminal *term)
+{
+ if (term->cfg.blink_cur && term->has_focus) {
+ if (!term->cblink_pending)
+ term->next_cblink = schedule_timer(CBLINK_DELAY, term_timer, term);
+ term->cblink_pending = TRUE;
+ } else {
+ term->cblinker = 1; /* reset when not in use */
+ term->cblink_pending = FALSE;
+ }
+}
+
+/*
+ * Call to reset cursor blinking on new output.
+ */
+static void term_reset_cblink(Terminal *term)
+{
+ seen_disp_event(term);
+ term->cblinker = 1;
+ term->cblink_pending = FALSE;
+ term_schedule_cblink(term);
+}
+
+/*
+ * Call to begin a visual bell.
+ */
+static void term_schedule_vbell(Terminal *term, int already_started,
+ long startpoint)
+{
+ long ticks_already_gone;
+
+ if (already_started)
+ ticks_already_gone = GETTICKCOUNT() - startpoint;
+ else
+ ticks_already_gone = 0;
+
+ if (ticks_already_gone < VBELL_DELAY) {
+ term->in_vbell = TRUE;
+ term->vbell_end = schedule_timer(VBELL_DELAY - ticks_already_gone,
+ term_timer, term);
+ } else {
+ term->in_vbell = FALSE;
+ }
+}
/*
* Set up power-on settings for the terminal.
term->alt_utf = term->utf = term->save_utf = 0;
term->utf_state = 0;
term->alt_sco_acs = term->sco_acs = term->save_sco_acs = 0;
- term->cset_attr[0] = term->cset_attr[1] = term->save_csattr = ATTR_ASCII;
+ term->cset_attr[0] = term->cset_attr[1] = term->save_csattr = CSET_ASCII;
term->rvideo = 0;
term->in_vbell = FALSE;
term->cursor_on = 1;
term->big_cursor = 0;
- term->save_attr = term->curr_attr = ATTR_DEFAULT;
+ term->default_attr = term->save_attr = term->curr_attr = ATTR_DEFAULT;
term->term_editing = term->term_echoing = FALSE;
term->app_cursor_keys = term->cfg.app_cursor;
term->app_keypad_keys = term->cfg.app_keypad;
term->use_bce = term->cfg.bce;
term->blink_is_real = term->cfg.blinktext;
- term->erase_char = ERASE_CHAR;
+ term->erase_char = term->basic_erase_char;
term->alt_which = 0;
term_print_finish(term);
{
swap_screen(term, 0, FALSE, FALSE);
erase_lots(term, FALSE, TRUE, TRUE);
}
+ term_schedule_tblink(term);
+ term_schedule_cblink(term);
}
/*
void term_update(Terminal *term)
{
Context ctx;
+
+ term->window_update_pending = FALSE;
+
ctx = get_ctx(term->frontend);
if (ctx) {
int need_sbar_update = term->seen_disp_event;
term->seen_disp_event = 0;
need_sbar_update = TRUE;
}
+
if (need_sbar_update)
update_sbar(term);
do_paint(term, ctx, TRUE);
*/
if (term->cfg.scroll_on_key) {
term->disptop = 0; /* return to main screen */
- term->seen_disp_event = 1;
+ seen_disp_event(term);
}
}
power_on(term);
if (term->ldisc) /* cause ldisc to notice changes */
ldisc_send(term->ldisc, NULL, 0, 0);
- fix_cpos;
term->disptop = 0;
deselect(term);
term_update(term);
}
+static void set_erase_char(Terminal *term)
+{
+ term->erase_char = term->basic_erase_char;
+ if (term->use_bce)
+ term->erase_char.attr = (term->curr_attr &
+ (ATTR_FGMASK | ATTR_BGMASK));
+}
+
/*
* When the user reconfigures us, we need to check the forbidden-
* alternate-screen config option, disable raw mouse mode if the
* default one. The full list is: Auto wrap mode, DEC Origin
* Mode, BCE, blinking text, character classes.
*/
- int reset_wrap, reset_decom, reset_bce, reset_blink, reset_charclass;
+ int reset_wrap, reset_decom, reset_bce, reset_tblink, reset_charclass;
int i;
reset_wrap = (term->cfg.wrap_mode != cfg->wrap_mode);
reset_decom = (term->cfg.dec_om != cfg->dec_om);
reset_bce = (term->cfg.bce != cfg->bce);
- reset_blink = (term->cfg.blinktext != cfg->blinktext);
+ reset_tblink = (term->cfg.blinktext != cfg->blinktext);
reset_charclass = 0;
for (i = 0; i < lenof(term->cfg.wordness); i++)
if (term->cfg.wordness[i] != cfg->wordness[i])
reset_charclass = 1;
+ /*
+ * If the bidi or shaping settings have changed, flush the bidi
+ * cache completely.
+ */
+ if (term->cfg.arabicshaping != cfg->arabicshaping ||
+ term->cfg.bidi != cfg->bidi) {
+ for (i = 0; i < term->bidi_cache_size; i++) {
+ sfree(term->pre_bidi_cache[i].chars);
+ sfree(term->post_bidi_cache[i].chars);
+ term->pre_bidi_cache[i].width = -1;
+ term->pre_bidi_cache[i].chars = NULL;
+ term->post_bidi_cache[i].width = -1;
+ term->post_bidi_cache[i].chars = NULL;
+ }
+ }
+
term->cfg = *cfg; /* STRUCTURE COPY */
if (reset_wrap)
term->alt_om = term->dec_om = term->cfg.dec_om;
if (reset_bce) {
term->use_bce = term->cfg.bce;
- if (term->use_bce)
- term->erase_char = (' ' | ATTR_ASCII |
- (term->curr_attr &
- (ATTR_FGMASK | ATTR_BGMASK)));
- else
- term->erase_char = ERASE_CHAR;
+ set_erase_char(term);
}
- if (reset_blink)
+ if (reset_tblink) {
term->blink_is_real = term->cfg.blinktext;
+ }
if (reset_charclass)
for (i = 0; i < 256; i++)
term->wordness[i] = term->cfg.wordness[i];
set_raw_mouse_mode(term->frontend, 0);
}
if (term->cfg.no_remote_charset) {
- term->cset_attr[0] = term->cset_attr[1] = ATTR_ASCII;
+ term->cset_attr[0] = term->cset_attr[1] = CSET_ASCII;
term->sco_acs = term->alt_sco_acs = 0;
term->utf = 0;
}
if (!*term->cfg.printer) {
term_print_finish(term);
}
+ term_schedule_tblink(term);
+ term_schedule_cblink(term);
}
/*
*/
void term_clrsb(Terminal *term)
{
- unsigned long *line;
+ termline *line;
term->disptop = 0;
while ((line = delpos234(term->scrollback, 0)) != NULL) {
- sfree(line);
+ sfree(line); /* this is compressed data, not a termline */
}
term->tempsblines = 0;
term->alt_sblines = 0;
term->logctx = NULL;
term->compatibility_level = TM_PUTTY;
strcpy(term->id_string, "\033[?6c");
- term->last_blink = term->last_tblink = 0;
+ term->cblink_pending = term->tblink_pending = FALSE;
term->paste_buffer = NULL;
term->paste_len = 0;
term->last_paste = 0;
term->seen_disp_event = FALSE;
term->xterm_mouse = term->mouse_is_down = FALSE;
term->reset_132 = FALSE;
- term->blinker = term->tblinker = 0;
+ term->cblinker = term->tblinker = 0;
term->has_focus = 1;
term->repeat_off = FALSE;
term->termstate = TOPLEVEL;
term->tempsblines = 0;
term->alt_sblines = 0;
term->disptop = 0;
- term->disptext = term->dispcurs = NULL;
+ term->disptext = NULL;
+ term->dispcursx = term->dispcursy = -1;
term->tabs = NULL;
deselect(term);
term->rows = term->cols = -1;
term->resize_fn = NULL;
term->resize_ctx = NULL;
term->in_term_out = FALSE;
+ term->ltemp = NULL;
+ term->ltemp_size = 0;
+ term->wcFrom = NULL;
+ term->wcTo = NULL;
+ term->wcFromTo_size = 0;
+
+ term->window_update_pending = FALSE;
+
+ term->bidi_cache_size = 0;
+ term->pre_bidi_cache = term->post_bidi_cache = NULL;
+
+ /* FULL-TERMCHAR */
+ term->basic_erase_char.chr = CSET_ASCII | ' ';
+ term->basic_erase_char.attr = ATTR_DEFAULT;
+ term->basic_erase_char.cc_next = 0;
+ term->erase_char = term->basic_erase_char;
return term;
}
void term_free(Terminal *term)
{
- unsigned long *line;
+ termline *line;
struct beeptime *beep;
+ int i;
while ((line = delpos234(term->scrollback, 0)) != NULL)
- sfree(line);
+ sfree(line); /* compressed data, not a termline */
freetree234(term->scrollback);
while ((line = delpos234(term->screen, 0)) != NULL)
- sfree(line);
+ freeline(line);
freetree234(term->screen);
while ((line = delpos234(term->alt_screen, 0)) != NULL)
- sfree(line);
+ freeline(line);
freetree234(term->alt_screen);
+ if (term->disptext) {
+ for (i = 0; i < term->rows; i++)
+ freeline(term->disptext[i]);
+ }
sfree(term->disptext);
while (term->beephead) {
beep = term->beephead;
printer_finish_job(term->print_job);
bufchain_clear(&term->printer_buf);
sfree(term->paste_buffer);
+ sfree(term->ltemp);
+ sfree(term->wcFrom);
+ sfree(term->wcTo);
+
+ for (i = 0; i < term->bidi_cache_size; i++) {
+ sfree(term->pre_bidi_cache[i].chars);
+ sfree(term->post_bidi_cache[i].chars);
+ }
+ sfree(term->pre_bidi_cache);
+ sfree(term->post_bidi_cache);
+
+ expire_timer_context(term);
+
sfree(term);
}
void term_size(Terminal *term, int newrows, int newcols, int newsavelines)
{
tree234 *newalt;
- unsigned long *newdisp, *line;
- int i, j;
+ termline **newdisp, *line;
+ int i, j, oldrows = term->rows;
int sblen;
int save_alt_which = term->alt_which;
assert(term->rows == count234(term->screen));
while (term->rows < newrows) {
if (term->tempsblines > 0) {
+ unsigned char *cline;
/* Insert a line from the scrollback at the top of the screen. */
assert(sblen >= term->tempsblines);
- line = delpos234(term->scrollback, --sblen);
+ cline = delpos234(term->scrollback, --sblen);
+ line = decompressline(cline, NULL);
+ sfree(cline);
+ line->temporary = FALSE; /* reconstituted line is now real */
term->tempsblines -= 1;
addpos234(term->screen, line, 0);
term->curs.y += 1;
term->savecurs.y += 1;
} else {
/* Add a new blank line at the bottom of the screen. */
- line = snewn(newcols + 2, TTYPE);
- line[0] = newcols;
- for (j = 0; j < newcols; j++)
- line[j + 1] = ERASE_CHAR;
- line[newcols + 1] = LATTR_NORM;
+ line = newline(term, newcols, FALSE);
addpos234(term->screen, line, count234(term->screen));
}
term->rows += 1;
} else {
/* push top row to scrollback */
line = delpos234(term->screen, 0);
- addpos234(term->scrollback, line, sblen++);
+ addpos234(term->scrollback, compressline(line), sblen++);
+ freeline(line);
term->tempsblines += 1;
term->curs.y -= 1;
term->savecurs.y -= 1;
term->disptop = 0;
/* Make a new displayed text buffer. */
- newdisp = snewn(newrows * (newcols + 1), TTYPE);
- for (i = 0; i < newrows * (newcols + 1); i++)
- newdisp[i] = ATTR_INVALID;
+ newdisp = snewn(newrows, termline *);
+ for (i = 0; i < newrows; i++) {
+ newdisp[i] = newline(term, newcols, FALSE);
+ for (j = 0; j < newcols; j++)
+ newdisp[i]->chars[j].attr = ATTR_INVALID;
+ }
+ if (term->disptext) {
+ for (i = 0; i < oldrows; i++)
+ freeline(term->disptext[i]);
+ }
sfree(term->disptext);
term->disptext = newdisp;
- term->dispcurs = NULL;
+ term->dispcursx = term->dispcursy = -1;
/* Make a new alternate screen. */
newalt = newtree234(NULL);
for (i = 0; i < newrows; i++) {
- line = snewn(newcols + 2, TTYPE);
- line[0] = newcols;
- for (j = 0; j < newcols; j++)
- line[j + 1] = term->erase_char;
- line[newcols + 1] = LATTR_NORM;
+ line = newline(term, newcols, TRUE);
addpos234(newalt, line, i);
}
if (term->alt_screen) {
while (NULL != (line = delpos234(term->alt_screen, 0)))
- sfree(line);
+ freeline(line);
freetree234(term->alt_screen);
}
term->alt_screen = newalt;
term->rows = newrows;
term->cols = newcols;
term->savelines = newsavelines;
- fix_cpos;
swap_screen(term, save_alt_which, FALSE, FALSE);
{
int i;
for (i = count234(screen) - 1; i >= 0; i--) {
- unsigned long *line = index234(screen, i);
+ termline *line = index234(screen, i);
int j;
- int cols = line[0];
- for (j = 0; j < cols; j++) {
- if (line[j + 1] != term->erase_char) break;
- }
- if (j != cols) break;
+ for (j = 0; j < line->cols; j++)
+ if (!termchars_equal(&line->chars[j], &term->erase_char))
+ break;
+ if (j != line->cols) break;
}
return i;
}
*/
erase_lots(term, FALSE, TRUE, TRUE);
}
-
- /*
- * This might not be possible if we're called during
- * initialisation.
- */
- if (term->screen)
- fix_cpos;
}
/*
* Scroll the screen. (`lines' is +ve for scrolling forward, -ve
* for backward.) `sb' is TRUE if the scrolling is permitted to
* affect the scrollback buffer.
- *
- * NB this function invalidates all pointers into lines of the
- * screen data structures. In particular, you MUST call fix_cpos
- * after calling scroll() and before doing anything else that
- * uses the cpos shortcut pointer.
*/
static void scroll(Terminal *term, int topline, int botline, int lines, int sb)
{
- unsigned long *line, *line2;
+ termline *line;
int i, seltop, olddisptop, shift;
if (topline != 0 || term->alt_which != 0)
if (lines < 0) {
while (lines < 0) {
line = delpos234(term->screen, botline);
- line = resizeline(line, term->cols);
+ resizeline(term, line, term->cols);
for (i = 0; i < term->cols; i++)
- line[i + 1] = term->erase_char;
- line[term->cols + 1] = 0;
+ copy_termchar(line, i, &term->erase_char);
+ line->lattr = LATTR_NORM;
addpos234(term->screen, line, topline);
if (term->selstart.y >= topline && term->selstart.y <= botline) {
} else {
while (lines > 0) {
line = delpos234(term->screen, topline);
+ cc_check(line); /* XXX-REMOVE-BEFORE-RELEASE */
if (sb && term->savelines > 0) {
int sblen = count234(term->scrollback);
/*
* We must add this line to the scrollback. We'll
- * remove a line from the top of the scrollback to
- * replace it, or allocate a new one if the
- * scrollback isn't full.
+ * remove a line from the top of the scrollback if
+ * the scrollback is full.
*/
if (sblen == term->savelines) {
- sblen--, line2 = delpos234(term->scrollback, 0);
- } else {
- line2 = snewn(term->cols + 2, TTYPE);
- line2[0] = term->cols;
+ unsigned char *cline;
+
+ sblen--;
+ cline = delpos234(term->scrollback, 0);
+ sfree(cline);
+ } else
term->tempsblines += 1;
- }
- addpos234(term->scrollback, line, sblen);
- line = line2;
+
+ addpos234(term->scrollback, compressline(line), sblen);
+
+ /* now `line' itself can be reused as the bottom line */
/*
* If the user is currently looking at part of the
if (term->disptop > -term->savelines && term->disptop < 0)
term->disptop--;
}
- line = resizeline(line, term->cols);
+ resizeline(term, line, term->cols);
for (i = 0; i < term->cols; i++)
- line[i + 1] = term->erase_char;
- line[term->cols + 1] = LATTR_NORM;
+ copy_termchar(line, i, &term->erase_char);
+ line->lattr = LATTR_NORM;
addpos234(term->screen, line, botline);
/*
*/
seltop = sb ? -term->savelines : topline;
- if (term->selstart.y >= seltop &&
- term->selstart.y <= botline) {
- term->selstart.y--;
- if (term->selstart.y < seltop) {
- term->selstart.y = seltop;
- term->selstart.x = 0;
+ if (term->selstate != NO_SELECTION) {
+ if (term->selstart.y >= seltop &&
+ term->selstart.y <= botline) {
+ term->selstart.y--;
+ if (term->selstart.y < seltop) {
+ term->selstart.y = seltop;
+ term->selstart.x = 0;
+ }
}
- }
- if (term->selend.y >= seltop && term->selend.y <= botline) {
- term->selend.y--;
- if (term->selend.y < seltop) {
- term->selend.y = seltop;
- term->selend.x = 0;
+ if (term->selend.y >= seltop && term->selend.y <= botline) {
+ term->selend.y--;
+ if (term->selend.y < seltop) {
+ term->selend.y = seltop;
+ term->selend.x = 0;
+ }
}
- }
- if (term->selanchor.y >= seltop && term->selanchor.y <= botline) {
- term->selanchor.y--;
- if (term->selanchor.y < seltop) {
- term->selanchor.y = seltop;
- term->selanchor.x = 0;
+ if (term->selanchor.y >= seltop &&
+ term->selanchor.y <= botline) {
+ term->selanchor.y--;
+ if (term->selanchor.y < seltop) {
+ term->selanchor.y = seltop;
+ term->selanchor.x = 0;
+ }
}
}
*/
static void scroll_display(Terminal *term, int topline, int botline, int lines)
{
- unsigned long *start, *end;
- int distance, size, i;
+ int distance, nlines, i, j;
- start = term->disptext + topline * (term->cols + 1);
- end = term->disptext + (botline + 1) * (term->cols + 1);
- distance = (lines > 0 ? lines : -lines) * (term->cols + 1);
- size = end - start - distance;
+ distance = lines > 0 ? lines : -lines;
+ nlines = botline - topline + 1 - distance;
if (lines > 0) {
- memmove(start, start + distance, size * TSIZE);
- if (term->dispcurs >= start + distance &&
- term->dispcurs <= start + distance + size)
- term->dispcurs -= distance;
+ for (i = 0; i < nlines; i++)
+ for (j = 0; j < term->cols; j++)
+ copy_termchar(term->disptext[start+i], j,
+ term->disptext[start+i+distance]->chars+j);
+ if (term->dispcursy >= 0 &&
+ term->dispcursy >= topline + distance &&
+ term->dispcursy < topline + distance + nlines)
+ term->dispcursy -= distance;
for (i = 0; i < distance; i++)
- (start + size)[i] |= ATTR_INVALID;
+ for (j = 0; j < term->cols; j++)
+ term->disptext[start+nlines+i]->chars[j].attr |= ATTR_INVALID;
} else {
- memmove(start + distance, start, size * TSIZE);
- if (term->dispcurs >= start && term->dispcurs <= start + size)
- term->dispcurs += distance;
+ for (i = nlines; i-- ;)
+ for (j = 0; j < term->cols; j++)
+ copy_termchar(term->disptext[start+i+distance], j,
+ term->disptext[start+i]->chars+j);
+ if (term->dispcursy >= 0 &&
+ term->dispcursy >= topline &&
+ term->dispcursy < topline + nlines)
+ term->dispcursy += distance;
for (i = 0; i < distance; i++)
- start[i] |= ATTR_INVALID;
+ for (j = 0; j < term->cols; j++)
+ term->disptext[start+i]->chars[j].attr |= ATTR_INVALID;
}
save_scroll(term, topline, botline, lines);
}
y = term->rows - 1;
term->curs.x = x;
term->curs.y = y;
- fix_cpos;
term->wrapnext = FALSE;
}
term->wrapnext = FALSE;
term->cset_attr[term->cset] = term->save_csattr;
term->sco_acs = term->save_sco_acs;
- fix_cpos;
- if (term->use_bce)
- term->erase_char = (' ' | ATTR_ASCII |
- (term->curr_attr &
- (ATTR_FGMASK | ATTR_BGMASK)));
+ set_erase_char(term);
}
}
*/
static void check_boundary(Terminal *term, int x, int y)
{
- unsigned long *ldata;
+ termline *ldata;
/* Validate input coordinates, just in case. */
if (x == 0 || x > term->cols)
return;
- ldata = lineptr(y);
+ ldata = scrlineptr(y);
if (x == term->cols) {
- ldata[x] &= ~LATTR_WRAPPED2;
+ ldata->lattr &= ~LATTR_WRAPPED2;
} else {
- if ((ldata[x] & (CHAR_MASK | CSET_MASK)) == UCSWIDE) {
- ldata[x-1] = ldata[x] =
- (ldata[x-1] &~ (CHAR_MASK | CSET_MASK)) | ATTR_ASCII | ' ';
+ if (ldata->chars[x].chr == UCSWIDE) {
+ clear_cc(ldata, x-1);
+ clear_cc(ldata, x);
+ ldata->chars[x-1].chr = ' ' | CSET_ASCII;
+ ldata->chars[x] = ldata->chars[x-1];
}
}
}
}
if (scrolllines > 0)
scroll(term, 0, scrolllines - 1, scrolllines, TRUE);
- fix_cpos;
} else {
- unsigned long *ldata = lineptr(start.y);
+ termline *ldata = scrlineptr(start.y);
while (poslt(start, end)) {
if (start.x == term->cols) {
if (!erase_lattr)
- ldata[start.x] &= ~(LATTR_WRAPPED | LATTR_WRAPPED2);
+ ldata->lattr &= ~(LATTR_WRAPPED | LATTR_WRAPPED2);
else
- ldata[start.x] = LATTR_NORM;
+ ldata->lattr = LATTR_NORM;
} else {
- ldata[start.x] = term->erase_char;
+ copy_termchar(ldata, start.x, &term->erase_char);
+ }
+ if (incpos(start) && start.y < term->rows) {
+ ldata = scrlineptr(start.y);
}
- if (incpos(start) && start.y < term->rows)
- ldata = lineptr(start.y);
}
}
static void insch(Terminal *term, int n)
{
int dir = (n < 0 ? -1 : +1);
- int m;
+ int m, j;
pos cursplus;
- unsigned long *ldata;
+ termline *ldata;
n = (n < 0 ? -n : n);
if (n > term->cols - term->curs.x)
check_boundary(term, term->curs.x, term->curs.y);
if (dir < 0)
check_boundary(term, term->curs.x + n, term->curs.y);
- ldata = lineptr(term->curs.y);
+ ldata = scrlineptr(term->curs.y);
if (dir < 0) {
- memmove(ldata + term->curs.x, ldata + term->curs.x + n, m * TSIZE);
+ for (j = 0; j < m; j++)
+ move_termchar(ldata,
+ ldata->chars + term->curs.x + j,
+ ldata->chars + term->curs.x + j + n);
while (n--)
- ldata[term->curs.x + m++] = term->erase_char;
+ copy_termchar(ldata, term->curs.x + m++, &term->erase_char);
} else {
- memmove(ldata + term->curs.x + n, ldata + term->curs.x, m * TSIZE);
+ for (j = m; j-- ;)
+ move_termchar(ldata,
+ ldata->chars + term->curs.x + j + n,
+ ldata->chars + term->curs.x + j);
while (n--)
- ldata[term->curs.x + n] = term->erase_char;
+ copy_termchar(ldata, term->curs.x + n, &term->erase_char);
}
}
*/
static void toggle_mode(Terminal *term, int mode, int query, int state)
{
- unsigned long ticks;
-
if (query)
switch (mode) {
- case 1: /* application cursor keys */
+ case 1: /* DECCKM: application cursor keys */
term->app_cursor_keys = state;
break;
- case 2: /* VT52 mode */
+ case 2: /* DECANM: VT52 mode */
term->vt52_mode = !state;
if (term->vt52_mode) {
term->blink_is_real = FALSE;
} else {
term->blink_is_real = term->cfg.blinktext;
}
+ term_schedule_tblink(term);
break;
- case 3: /* 80/132 columns */
+ case 3: /* DECCOLM: 80/132 columns */
deselect(term);
if (!term->cfg.no_remote_resize)
request_resize(term->frontend, state ? 132 : 80, term->rows);
move(term, 0, 0, 0);
erase_lots(term, FALSE, TRUE, TRUE);
break;
- case 5: /* reverse video */
+ case 5: /* DECSCNM: reverse video */
/*
* Toggle reverse video. If we receive an OFF within the
* visual bell timeout period after an ON, we trigger an
* effective visual bell, so that ESC[?5hESC[?5l will
* always be an actually _visible_ visual bell.
*/
- ticks = GETTICKCOUNT();
- /* turn off a previous vbell to avoid inconsistencies */
- if (ticks - term->vbell_startpoint >= VBELL_TIMEOUT)
- term->in_vbell = FALSE;
- if (term->rvideo && !state && /* we're turning it off... */
- (ticks - term->rvbell_startpoint) < VBELL_TIMEOUT) {/*...soon*/
- /* If there's no vbell timeout already, or this one lasts
- * longer, replace vbell_timeout with ours. */
- if (!term->in_vbell ||
- (term->rvbell_startpoint - term->vbell_startpoint <
- VBELL_TIMEOUT))
- term->vbell_startpoint = term->rvbell_startpoint;
- term->in_vbell = TRUE; /* may clear rvideo but set in_vbell */
+ if (term->rvideo && !state) {
+ /* This is an OFF, so set up a vbell */
+ term_schedule_vbell(term, TRUE, term->rvbell_startpoint);
} else if (!term->rvideo && state) {
/* This is an ON, so we notice the time and save it. */
- term->rvbell_startpoint = ticks;
+ term->rvbell_startpoint = GETTICKCOUNT();
}
term->rvideo = state;
- term->seen_disp_event = TRUE;
- if (state)
- term_update(term);
+ seen_disp_event(term);
break;
- case 6: /* DEC origin mode */
+ case 6: /* DECOM: DEC origin mode */
term->dec_om = state;
break;
- case 7: /* auto wrap */
+ case 7: /* DECAWM: auto wrap */
term->wrap = state;
break;
- case 8: /* auto key repeat */
+ case 8: /* DECARM: auto key repeat */
term->repeat_off = !state;
break;
- case 10: /* set local edit mode */
+ case 10: /* DECEDM: set local edit mode */
term->term_editing = state;
if (term->ldisc) /* cause ldisc to notice changes */
ldisc_send(term->ldisc, NULL, 0, 0);
break;
- case 25: /* enable/disable cursor */
+ case 25: /* DECTCEM: enable/disable cursor */
compatibility2(OTHER, VT220);
term->cursor_on = state;
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
case 47: /* alternate screen */
compatibility(OTHER);
term->disptop = 0;
break;
case 1048: /* save/restore cursor */
- save_cursor(term, state);
- if (!state) term->seen_disp_event = TRUE;
+ if (!term->cfg.no_alt_screen)
+ save_cursor(term, state);
+ if (!state) seen_disp_event(term);
break;
case 1049: /* cursor & alternate screen */
- if (state)
+ if (state && !term->cfg.no_alt_screen)
save_cursor(term, state);
- if (!state) term->seen_disp_event = TRUE;
+ if (!state) seen_disp_event(term);
compatibility(OTHER);
deselect(term);
swap_screen(term, term->cfg.no_alt_screen ? 0 : state, TRUE, FALSE);
- if (!state)
+ if (!state && !term->cfg.no_alt_screen)
save_cursor(term, state);
term->disptop = 0;
break;
} else
switch (mode) {
- case 4: /* set insert mode */
+ case 4: /* IRM: set insert mode */
compatibility(VT102);
term->insert = state;
break;
- case 12: /* set echo mode */
+ case 12: /* SRM: set echo mode */
term->term_echoing = !state;
if (term->ldisc) /* cause ldisc to notice changes */
ldisc_send(term->ldisc, NULL, 0, 0);
break;
- case 20: /* Return sends ... */
+ case 20: /* LNM: Return sends ... */
term->cr_lf_return = state;
break;
- case 34: /* Make cursor BIG */
+ case 34: /* WYULCURM: Make cursor BIG */
compatibility2(OTHER, VT220);
term->big_cursor = !state;
}
* in-memory display. There's a big state machine in here to
* process escape sequences...
*/
-void term_out(Terminal *term)
+static void term_out(Terminal *term)
{
- int c, unget;
+ unsigned long c;
+ int unget;
unsigned char localbuf[256], *chars;
int nchars = 0;
/* UTF-8 must be stateless so we ignore iso2022. */
if (term->ucsdata->unitab_ctrl[c] != 0xFF)
c = term->ucsdata->unitab_ctrl[c];
- else c = ((unsigned char)c) | ATTR_ASCII;
+ else c = ((unsigned char)c) | CSET_ASCII;
break;
} else if ((c & 0xe0) == 0xc0) {
term->utf_size = term->utf_state = 1;
if (c == 0xFFFE || c == 0xFFFF)
c = UCSERR;
- /* Oops this is a 16bit implementation */
- if (c >= 0x10000)
- c = 0xFFFD;
break;
}
/* Are we in the nasty ACS mode? Note: no sco in utf mode. */
(c!='\033' && c!='\012' && c!='\015' && c!='\b'))
{
if (term->sco_acs == 2) c |= 0x80;
- c |= ATTR_SCOACS;
+ c |= CSET_SCOACS;
} else {
switch (term->cset_attr[term->cset]) {
/*
* range, make sure we use the same font as well as
* the same encoding.
*/
- case ATTR_LINEDRW:
+ case CSET_LINEDRW:
if (term->ucsdata->unitab_ctrl[c] != 0xFF)
c = term->ucsdata->unitab_ctrl[c];
else
- c = ((unsigned char) c) | ATTR_LINEDRW;
+ c = ((unsigned char) c) | CSET_LINEDRW;
break;
- case ATTR_GBCHR:
+ case CSET_GBCHR:
/* If UK-ASCII, make the '#' a LineDraw Pound */
if (c == '#') {
- c = '}' | ATTR_LINEDRW;
+ c = '}' | CSET_LINEDRW;
break;
}
- /*FALLTHROUGH*/ case ATTR_ASCII:
+ /*FALLTHROUGH*/ case CSET_ASCII:
if (term->ucsdata->unitab_ctrl[c] != 0xFF)
c = term->ucsdata->unitab_ctrl[c];
else
- c = ((unsigned char) c) | ATTR_ASCII;
+ c = ((unsigned char) c) | CSET_ASCII;
break;
- case ATTR_SCOACS:
- if (c>=' ') c = ((unsigned char)c) | ATTR_SCOACS;
+ case CSET_SCOACS:
+ if (c>=' ') c = ((unsigned char)c) | CSET_SCOACS;
break;
}
}
if (term->curs.x && !term->wrapnext)
term->curs.x--;
term->wrapnext = FALSE;
- fix_cpos;
- if (!term->cfg.no_dbackspace) /* destructive bksp might be disabled */
- *term->cpos = (' ' | term->curr_attr | ATTR_ASCII);
+ /* destructive backspace might be disabled */
+ if (!term->cfg.no_dbackspace) {
+ check_boundary(term, term->curs.x, term->curs.y);
+ check_boundary(term, term->curs.x+1, term->curs.y);
+ copy_termchar(scrlineptr(term->curs.y),
+ term->curs.x, &term->erase_char);
+ }
} else
/* Or normal C0 controls. */
- if ((c & -32) == 0 && term->termstate < DO_CTRLS) {
+ if ((c & ~0x1F) == 0 && term->termstate < DO_CTRLS) {
switch (c) {
- case '\005': /* terminal type query */
+ case '\005': /* ENQ: terminal type query */
/* Strictly speaking this is VT100 but a VT100 defaults to
* no response. Other terminals respond at their option.
*
abuf, d - abuf, 0);
}
break;
- case '\007':
+ case '\007': /* BEL: Bell */
{
struct beeptime *newbeep;
unsigned long ticks;
*/
if (!term->cfg.bellovl || !term->beep_overloaded) {
beep(term->frontend, term->cfg.beep);
+
if (term->cfg.beep == BELL_VISUAL) {
- term->in_vbell = TRUE;
- term->vbell_startpoint = ticks;
- term_update(term);
+ term_schedule_vbell(term, FALSE, 0);
}
}
- term->disptop = 0;
+ seen_disp_event(term);
}
break;
- case '\b':
+ case '\b': /* BS: Back space */
if (term->curs.x == 0 &&
(term->curs.y == 0 || term->wrap == 0))
/* do nothing */ ;
term->wrapnext = FALSE;
else
term->curs.x--;
- fix_cpos;
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case '\016':
+ case '\016': /* LS1: Locking-shift one */
compatibility(VT100);
term->cset = 1;
break;
- case '\017':
+ case '\017': /* LS0: Locking-shift zero */
compatibility(VT100);
term->cset = 0;
break;
- case '\033':
+ case '\033': /* ESC: Escape */
if (term->vt52_mode)
term->termstate = VT52_ESC;
else {
term->esc_query = FALSE;
}
break;
- case '\015':
+ case '\015': /* CR: Carriage return */
term->curs.x = 0;
term->wrapnext = FALSE;
- fix_cpos;
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
term->paste_hold = 0;
if (term->logctx)
logtraffic(term->logctx, (unsigned char) c, LGTYP_ASCII);
break;
- case '\014':
+ case '\014': /* FF: Form feed */
if (has_compat(SCOANSI)) {
move(term, 0, 0, 0);
erase_lots(term, FALSE, FALSE, TRUE);
term->disptop = 0;
term->wrapnext = FALSE;
- term->seen_disp_event = 1;
+ seen_disp_event(term);
break;
}
- case '\013':
+ case '\013': /* VT: Line tabulation */
compatibility(VT100);
- case '\012':
+ case '\012': /* LF: Line feed */
if (term->curs.y == term->marg_b)
scroll(term, term->marg_t, term->marg_b, 1, TRUE);
else if (term->curs.y < term->rows - 1)
term->curs.y++;
if (term->cfg.lfhascr)
term->curs.x = 0;
- fix_cpos;
term->wrapnext = FALSE;
- term->seen_disp_event = 1;
+ seen_disp_event(term);
term->paste_hold = 0;
if (term->logctx)
logtraffic(term->logctx, (unsigned char) c, LGTYP_ASCII);
break;
- case '\t':
+ case '\t': /* HT: Character tabulation */
{
pos old_curs = term->curs;
- unsigned long *ldata = lineptr(term->curs.y);
+ termline *ldata = scrlineptr(term->curs.y);
do {
term->curs.x++;
} while (term->curs.x < term->cols - 1 &&
!term->tabs[term->curs.x]);
- if ((ldata[term->cols] & LATTR_MODE) != LATTR_NORM) {
+ if ((ldata->lattr & LATTR_MODE) != LATTR_NORM) {
if (term->curs.x >= term->cols / 2)
term->curs.x = term->cols / 2 - 1;
} else {
term->curs.x = term->cols - 1;
}
- fix_cpos;
check_selection(term, old_curs, term->curs);
}
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
}
} else
case TOPLEVEL:
/* Only graphic characters get this far;
* ctrls are stripped above */
- if (term->wrapnext && term->wrap) {
- term->cpos[1] |= LATTR_WRAPPED;
- if (term->curs.y == term->marg_b)
- scroll(term, term->marg_t, term->marg_b, 1, TRUE);
- else if (term->curs.y < term->rows - 1)
- term->curs.y++;
- term->curs.x = 0;
- fix_cpos;
- term->wrapnext = FALSE;
- }
- if (term->insert)
- insch(term, 1);
- if (term->selstate != NO_SELECTION) {
- pos cursplus = term->curs;
- incpos(cursplus);
- check_selection(term, term->curs, cursplus);
- }
- if (((c & CSET_MASK) == ATTR_ASCII || (c & CSET_MASK) == 0) &&
- term->logctx)
- logtraffic(term->logctx, (unsigned char) c, LGTYP_ASCII);
{
+ termline *cline = scrlineptr(term->curs.y);
int width = 0;
if (DIRECT_CHAR(c))
width = 1;
if (!width)
width = wcwidth((wchar_t) c);
+
+ if (term->wrapnext && term->wrap && width > 0) {
+ cline->lattr |= LATTR_WRAPPED;
+ if (term->curs.y == term->marg_b)
+ scroll(term, term->marg_t, term->marg_b, 1, TRUE);
+ else if (term->curs.y < term->rows - 1)
+ term->curs.y++;
+ term->curs.x = 0;
+ term->wrapnext = FALSE;
+ cline = scrlineptr(term->curs.y);
+ }
+ if (term->insert && width > 0)
+ insch(term, width);
+ if (term->selstate != NO_SELECTION) {
+ pos cursplus = term->curs;
+ incpos(cursplus);
+ check_selection(term, term->curs, cursplus);
+ }
+ if (((c & CSET_MASK) == CSET_ASCII ||
+ (c & CSET_MASK) == 0) &&
+ term->logctx)
+ logtraffic(term->logctx, (unsigned char) c,
+ LGTYP_ASCII);
+
switch (width) {
case 2:
/*
check_boundary(term, term->curs.x, term->curs.y);
check_boundary(term, term->curs.x+2, term->curs.y);
if (term->curs.x == term->cols-1) {
- *term->cpos++ = ATTR_ASCII | ' ' | term->curr_attr;
- *term->cpos |= LATTR_WRAPPED | LATTR_WRAPPED2;
+ copy_termchar(cline, term->curs.x,
+ &term->erase_char);
+ cline->lattr |= LATTR_WRAPPED | LATTR_WRAPPED2;
if (term->curs.y == term->marg_b)
scroll(term, term->marg_t, term->marg_b,
1, TRUE);
else if (term->curs.y < term->rows - 1)
term->curs.y++;
term->curs.x = 0;
- fix_cpos;
+ cline = scrlineptr(term->curs.y);
/* Now we must check_boundary again, of course. */
check_boundary(term, term->curs.x, term->curs.y);
check_boundary(term, term->curs.x+2, term->curs.y);
}
- *term->cpos++ = c | term->curr_attr;
- *term->cpos++ = UCSWIDE | term->curr_attr;
+
+ /* FULL-TERMCHAR */
+ clear_cc(cline, term->curs.x);
+ cline->chars[term->curs.x].chr = c;
+ cline->chars[term->curs.x].attr = term->curr_attr;
+
term->curs.x++;
+
+ /* FULL-TERMCHAR */
+ clear_cc(cline, term->curs.x);
+ cline->chars[term->curs.x].chr = UCSWIDE;
+ cline->chars[term->curs.x].attr = term->curr_attr;
+
break;
case 1:
check_boundary(term, term->curs.x, term->curs.y);
check_boundary(term, term->curs.x+1, term->curs.y);
- *term->cpos++ = c | term->curr_attr;
+
+ /* FULL-TERMCHAR */
+ clear_cc(cline, term->curs.x);
+ cline->chars[term->curs.x].chr = c;
+ cline->chars[term->curs.x].attr = term->curr_attr;
+
break;
+ case 0:
+ if (term->curs.x > 0) {
+ int x = term->curs.x - 1;
+
+ /* If we're in wrapnext state, the character
+ * to combine with is _here_, not to our left. */
+ if (term->wrapnext)
+ x++;
+
+ /*
+ * If the previous character is
+ * UCSWIDE, back up another one.
+ */
+ if (cline->chars[x].chr == UCSWIDE) {
+ assert(x > 0);
+ x--;
+ }
+
+ add_cc(cline, x, c);
+ seen_disp_event(term);
+ }
+ continue;
default:
continue;
}
- }
- term->curs.x++;
- if (term->curs.x == term->cols) {
- term->cpos--;
- term->curs.x--;
- term->wrapnext = TRUE;
- if (term->wrap && term->vt52_mode) {
- term->cpos[1] |= LATTR_WRAPPED;
- if (term->curs.y == term->marg_b)
- scroll(term, term->marg_t, term->marg_b, 1, TRUE);
- else if (term->curs.y < term->rows - 1)
- term->curs.y++;
- term->curs.x = 0;
- fix_cpos;
- term->wrapnext = FALSE;
+ term->curs.x++;
+ if (term->curs.x == term->cols) {
+ term->curs.x--;
+ term->wrapnext = TRUE;
+ if (term->wrap && term->vt52_mode) {
+ cline->lattr |= LATTR_WRAPPED;
+ if (term->curs.y == term->marg_b)
+ scroll(term, term->marg_t, term->marg_b, 1, TRUE);
+ else if (term->curs.y < term->rows - 1)
+ term->curs.y++;
+ term->curs.x = 0;
+ term->wrapnext = FALSE;
+ }
}
+ seen_disp_event(term);
}
- term->seen_disp_event = 1;
break;
case OSC_MAYBE_ST:
}
term->termstate = TOPLEVEL;
switch (ANSI(c, term->esc_query)) {
- case '[': /* enter CSI mode */
+ case '[': /* enter CSI mode */
term->termstate = SEEN_CSI;
term->esc_nargs = 1;
term->esc_args[0] = ARG_DEFAULT;
term->esc_query = FALSE;
break;
- case ']': /* xterm escape sequences */
+ case ']': /* OSC: xterm escape sequences */
/* Compatibility is nasty here, xterm, linux, decterm yuk! */
compatibility(OTHER);
term->termstate = SEEN_OSC;
term->esc_args[0] = 0;
break;
- case '7': /* save cursor */
+ case '7': /* DECSC: save cursor */
compatibility(VT100);
save_cursor(term, TRUE);
break;
- case '8': /* restore cursor */
+ case '8': /* DECRC: restore cursor */
compatibility(VT100);
save_cursor(term, FALSE);
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case '=':
+ case '=': /* DECKPAM: Keypad application mode */
compatibility(VT100);
term->app_keypad_keys = TRUE;
break;
- case '>':
+ case '>': /* DECKPNM: Keypad numeric mode */
compatibility(VT100);
term->app_keypad_keys = FALSE;
break;
- case 'D': /* exactly equivalent to LF */
+ case 'D': /* IND: exactly equivalent to LF */
compatibility(VT100);
if (term->curs.y == term->marg_b)
scroll(term, term->marg_t, term->marg_b, 1, TRUE);
else if (term->curs.y < term->rows - 1)
term->curs.y++;
- fix_cpos;
term->wrapnext = FALSE;
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case 'E': /* exactly equivalent to CR-LF */
+ case 'E': /* NEL: exactly equivalent to CR-LF */
compatibility(VT100);
term->curs.x = 0;
if (term->curs.y == term->marg_b)
scroll(term, term->marg_t, term->marg_b, 1, TRUE);
else if (term->curs.y < term->rows - 1)
term->curs.y++;
- fix_cpos;
term->wrapnext = FALSE;
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case 'M': /* reverse index - backwards LF */
+ case 'M': /* RI: reverse index - backwards LF */
compatibility(VT100);
if (term->curs.y == term->marg_t)
scroll(term, term->marg_t, term->marg_b, -1, TRUE);
else if (term->curs.y > 0)
term->curs.y--;
- fix_cpos;
term->wrapnext = FALSE;
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case 'Z': /* terminal type query */
+ case 'Z': /* DECID: terminal type query */
compatibility(VT100);
if (term->ldisc)
ldisc_send(term->ldisc, term->id_string,
strlen(term->id_string), 0);
break;
- case 'c': /* restore power-on settings */
+ case 'c': /* RIS: restore power-on settings */
compatibility(VT100);
power_on(term);
if (term->ldisc) /* cause ldisc to notice changes */
request_resize(term->frontend, 80, term->rows);
term->reset_132 = 0;
}
- fix_cpos;
term->disptop = 0;
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case 'H': /* set a tab */
+ case 'H': /* HTS: set a tab */
compatibility(VT100);
term->tabs[term->curs.x] = TRUE;
break;
- case ANSI('8', '#'): /* ESC # 8 fills screen with Es :-) */
+ case ANSI('8', '#'): /* DECALN: fills screen with Es :-) */
compatibility(VT100);
{
- unsigned long *ldata;
+ termline *ldata;
int i, j;
pos scrtop, scrbot;
for (i = 0; i < term->rows; i++) {
- ldata = lineptr(i);
- for (j = 0; j < term->cols; j++)
- ldata[j] = ATTR_DEFAULT | 'E';
- ldata[term->cols] = 0;
+ ldata = scrlineptr(i);
+ for (j = 0; j < term->cols; j++) {
+ copy_termchar(ldata, j,
+ &term->basic_erase_char);
+ ldata->chars[j].chr = 'E';
+ }
+ ldata->lattr = LATTR_NORM;
}
term->disptop = 0;
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
scrtop.x = scrtop.y = 0;
scrbot.x = 0;
scrbot.y = term->rows;
case ANSI('6', '#'):
compatibility(VT100);
{
- unsigned long nlattr;
- unsigned long *ldata;
+ int nlattr;
+
switch (ANSI(c, term->esc_query)) {
- case ANSI('3', '#'):
+ case ANSI('3', '#'): /* DECDHL: 2*height, top */
nlattr = LATTR_TOP;
break;
- case ANSI('4', '#'):
+ case ANSI('4', '#'): /* DECDHL: 2*height, bottom */
nlattr = LATTR_BOT;
break;
- case ANSI('5', '#'):
+ case ANSI('5', '#'): /* DECSWL: normal */
nlattr = LATTR_NORM;
break;
- default: /* spiritually case ANSI('6', '#'): */
+ default: /* case ANSI('6', '#'): DECDWL: 2*width */
nlattr = LATTR_WIDE;
break;
}
- ldata = lineptr(term->curs.y);
- ldata[term->cols] &= ~LATTR_MODE;
- ldata[term->cols] |= nlattr;
+ scrlineptr(term->curs.y)->lattr = nlattr;
}
break;
-
+ /* GZD4: G0 designate 94-set */
case ANSI('A', '('):
compatibility(VT100);
if (!term->cfg.no_remote_charset)
- term->cset_attr[0] = ATTR_GBCHR;
+ term->cset_attr[0] = CSET_GBCHR;
break;
case ANSI('B', '('):
compatibility(VT100);
if (!term->cfg.no_remote_charset)
- term->cset_attr[0] = ATTR_ASCII;
+ term->cset_attr[0] = CSET_ASCII;
break;
case ANSI('0', '('):
compatibility(VT100);
if (!term->cfg.no_remote_charset)
- term->cset_attr[0] = ATTR_LINEDRW;
+ term->cset_attr[0] = CSET_LINEDRW;
break;
case ANSI('U', '('):
compatibility(OTHER);
if (!term->cfg.no_remote_charset)
- term->cset_attr[0] = ATTR_SCOACS;
+ term->cset_attr[0] = CSET_SCOACS;
break;
-
+ /* G1D4: G1-designate 94-set */
case ANSI('A', ')'):
compatibility(VT100);
if (!term->cfg.no_remote_charset)
- term->cset_attr[1] = ATTR_GBCHR;
+ term->cset_attr[1] = CSET_GBCHR;
break;
case ANSI('B', ')'):
compatibility(VT100);
if (!term->cfg.no_remote_charset)
- term->cset_attr[1] = ATTR_ASCII;
+ term->cset_attr[1] = CSET_ASCII;
break;
case ANSI('0', ')'):
compatibility(VT100);
if (!term->cfg.no_remote_charset)
- term->cset_attr[1] = ATTR_LINEDRW;
+ term->cset_attr[1] = CSET_LINEDRW;
break;
case ANSI('U', ')'):
compatibility(OTHER);
if (!term->cfg.no_remote_charset)
- term->cset_attr[1] = ATTR_SCOACS;
+ term->cset_attr[1] = CSET_SCOACS;
break;
-
+ /* DOCS: Designate other coding system */
case ANSI('8', '%'): /* Old Linux code */
case ANSI('G', '%'):
compatibility(OTHER);
term->termstate = SEEN_CSI;
} else
switch (ANSI(c, term->esc_query)) {
- case 'A': /* move up N lines */
+ case 'A': /* CUU: move up N lines */
move(term, term->curs.x,
term->curs.y - def(term->esc_args[0], 1), 1);
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case 'e': /* move down N lines */
+ case 'e': /* VPR: move down N lines */
compatibility(ANSI);
/* FALLTHROUGH */
- case 'B':
+ case 'B': /* CUD: Cursor down */
move(term, term->curs.x,
term->curs.y + def(term->esc_args[0], 1), 1);
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case ANSI('c', '>'): /* report xterm version */
+ case ANSI('c', '>'): /* DA: report xterm version */
compatibility(OTHER);
/* this reports xterm version 136 so that VIM can
use the drag messages from the mouse reporting */
if (term->ldisc)
ldisc_send(term->ldisc, "\033[>0;136;0c", 11, 0);
break;
- case 'a': /* move right N cols */
+ case 'a': /* HPR: move right N cols */
compatibility(ANSI);
/* FALLTHROUGH */
- case 'C':
+ case 'C': /* CUF: Cursor right */
move(term, term->curs.x + def(term->esc_args[0], 1),
term->curs.y, 1);
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case 'D': /* move left N cols */
+ case 'D': /* CUB: move left N cols */
move(term, term->curs.x - def(term->esc_args[0], 1),
term->curs.y, 1);
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case 'E': /* move down N lines and CR */
+ case 'E': /* CNL: move down N lines and CR */
compatibility(ANSI);
move(term, 0,
term->curs.y + def(term->esc_args[0], 1), 1);
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case 'F': /* move up N lines and CR */
+ case 'F': /* CPL: move up N lines and CR */
compatibility(ANSI);
move(term, 0,
term->curs.y - def(term->esc_args[0], 1), 1);
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case 'G':
- case '`': /* set horizontal posn */
+ case 'G': /* CHA */
+ case '`': /* HPA: set horizontal posn */
compatibility(ANSI);
move(term, def(term->esc_args[0], 1) - 1,
term->curs.y, 0);
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case 'd': /* set vertical posn */
+ case 'd': /* VPA: set vertical posn */
compatibility(ANSI);
move(term, term->curs.x,
((term->dec_om ? term->marg_t : 0) +
def(term->esc_args[0], 1) - 1),
(term->dec_om ? 2 : 0));
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case 'H':
- case 'f': /* set horz and vert posns at once */
+ case 'H': /* CUP */
+ case 'f': /* HVP: set horz and vert posns at once */
if (term->esc_nargs < 2)
term->esc_args[1] = ARG_DEFAULT;
move(term, def(term->esc_args[1], 1) - 1,
((term->dec_om ? term->marg_t : 0) +
def(term->esc_args[0], 1) - 1),
(term->dec_om ? 2 : 0));
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case 'J': /* erase screen or parts of it */
+ case 'J': /* ED: erase screen or parts of it */
{
unsigned int i = def(term->esc_args[0], 0) + 1;
if (i > 3)
erase_lots(term, FALSE, !!(i & 2), !!(i & 1));
}
term->disptop = 0;
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case 'K': /* erase line or parts of it */
+ case 'K': /* EL: erase line or parts of it */
{
unsigned int i = def(term->esc_args[0], 0) + 1;
if (i > 3)
i = 0;
erase_lots(term, TRUE, !!(i & 2), !!(i & 1));
}
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case 'L': /* insert lines */
+ case 'L': /* IL: insert lines */
compatibility(VT102);
if (term->curs.y <= term->marg_b)
scroll(term, term->curs.y, term->marg_b,
-def(term->esc_args[0], 1), FALSE);
- fix_cpos;
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case 'M': /* delete lines */
+ case 'M': /* DL: delete lines */
compatibility(VT102);
if (term->curs.y <= term->marg_b)
scroll(term, term->curs.y, term->marg_b,
def(term->esc_args[0], 1),
TRUE);
- fix_cpos;
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case '@': /* insert chars */
+ case '@': /* ICH: insert chars */
/* XXX VTTEST says this is vt220, vt510 manual says vt102 */
compatibility(VT102);
insch(term, def(term->esc_args[0], 1));
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case 'P': /* delete chars */
+ case 'P': /* DCH: delete chars */
compatibility(VT102);
insch(term, -def(term->esc_args[0], 1));
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case 'c': /* terminal type query */
+ case 'c': /* DA: terminal type query */
compatibility(VT100);
/* This is the response for a VT102 */
if (term->ldisc)
ldisc_send(term->ldisc, term->id_string,
strlen(term->id_string), 0);
break;
- case 'n': /* cursor position query */
+ case 'n': /* DSR: cursor position query */
if (term->ldisc) {
if (term->esc_args[0] == 6) {
char buf[32];
}
}
break;
- case 'h': /* toggle modes to high */
+ case 'h': /* SM: toggle modes to high */
case ANSI_QUE('h'):
compatibility(VT100);
{
term->esc_query, TRUE);
}
break;
- case 'i':
+ case 'i': /* MC: Media copy */
case ANSI_QUE('i'):
compatibility(VT100);
{
}
}
break;
- case 'l': /* toggle modes to low */
+ case 'l': /* RM: toggle modes to low */
case ANSI_QUE('l'):
compatibility(VT100);
{
term->esc_query, FALSE);
}
break;
- case 'g': /* clear tabs */
+ case 'g': /* TBC: clear tabs */
compatibility(VT100);
if (term->esc_nargs == 1) {
if (term->esc_args[0] == 0) {
}
}
break;
- case 'r': /* set scroll margins */
+ case 'r': /* DECSTBM: set scroll margins */
compatibility(VT100);
if (term->esc_nargs <= 2) {
int top, bot;
*/
term->curs.y = (term->dec_om ?
term->marg_t : 0);
- fix_cpos;
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
}
}
break;
- case 'm': /* set graphics rendition */
+ case 'm': /* SGR: set graphics rendition */
{
/*
* A VT100 without the AVO only had one
for (i = 0; i < term->esc_nargs; i++) {
switch (def(term->esc_args[i], 0)) {
case 0: /* restore defaults */
- term->curr_attr = ATTR_DEFAULT;
+ term->curr_attr = term->default_attr;
break;
case 1: /* enable bold */
compatibility(VT100AVO);
compatibility(VT100AVO);
term->curr_attr |= ATTR_BLINK;
break;
+ case 6: /* SCO light bkgrd */
+ compatibility(SCOANSI);
+ term->blink_is_real = FALSE;
+ term->curr_attr |= ATTR_BLINK;
+ term_schedule_tblink(term);
+ break;
case 7: /* enable reverse video */
term->curr_attr |= ATTR_REVERSE;
break;
/* xterm-style bright foreground */
term->curr_attr &= ~ATTR_FGMASK;
term->curr_attr |=
- ((term->esc_args[i] - 90 + 16)
+ ((term->esc_args[i] - 90 + 8)
<< ATTR_FGSHIFT);
break;
case 39: /* default-foreground */
/* xterm-style bright background */
term->curr_attr &= ~ATTR_BGMASK;
term->curr_attr |=
- ((term->esc_args[i] - 100 + 16)
+ ((term->esc_args[i] - 100 + 8)
<< ATTR_BGSHIFT);
break;
case 49: /* default-background */
term->curr_attr &= ~ATTR_BGMASK;
term->curr_attr |= ATTR_DEFBG;
break;
+ case 38: /* xterm 256-colour mode */
+ if (i+2 < term->esc_nargs &&
+ term->esc_args[i+1] == 5) {
+ term->curr_attr &= ~ATTR_FGMASK;
+ term->curr_attr |=
+ ((term->esc_args[i+2] & 0xFF)
+ << ATTR_FGSHIFT);
+ i += 2;
+ }
+ break;
+ case 48: /* xterm 256-colour mode */
+ if (i+2 < term->esc_nargs &&
+ term->esc_args[i+1] == 5) {
+ term->curr_attr &= ~ATTR_BGMASK;
+ term->curr_attr |=
+ ((term->esc_args[i+2] & 0xFF)
+ << ATTR_BGSHIFT);
+ i += 2;
+ }
+ break;
}
}
- if (term->use_bce)
- term->erase_char = (' ' | ATTR_ASCII |
- (term->curr_attr &
- (ATTR_FGMASK |
- ATTR_BGMASK)));
+ set_erase_char(term);
}
break;
case 's': /* save cursor */
break;
case 'u': /* restore cursor */
save_cursor(term, FALSE);
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case 't': /* set page size - ie window height */
+ case 't': /* DECSLPP: set page size - ie window height */
/*
* VT340/VT420 sequence DECSLPP, DEC only allows values
* 24/25/36/48/72/144 other emulators (eg dtterm) use
}
}
break;
- case 'S':
+ case 'S': /* SU: Scroll up */
compatibility(SCOANSI);
scroll(term, term->marg_t, term->marg_b,
def(term->esc_args[0], 1), TRUE);
- fix_cpos;
term->wrapnext = FALSE;
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case 'T':
+ case 'T': /* SD: Scroll down */
compatibility(SCOANSI);
scroll(term, term->marg_t, term->marg_b,
-def(term->esc_args[0], 1), TRUE);
- fix_cpos;
term->wrapnext = FALSE;
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
break;
- case ANSI('|', '*'):
- /* VT420 sequence DECSNLS
+ case ANSI('|', '*'): /* DECSNLS */
+ /*
* Set number of lines on screen
- * VT420 uses VGA like hardware and can support any size in
- * reasonable range (24..49 AIUI) with no default specified.
+ * VT420 uses VGA like hardware and can
+ * support any size in reasonable range
+ * (24..49 AIUI) with no default specified.
*/
compatibility(VT420);
if (term->esc_nargs == 1 && term->esc_args[0] > 0) {
deselect(term);
}
break;
- case ANSI('|', '$'):
- /* VT340/VT420 sequence DECSCPP
+ case ANSI('|', '$'): /* DECSCPP */
+ /*
* Set number of columns per page
- * Docs imply range is only 80 or 132, but I'll allow any.
+ * Docs imply range is only 80 or 132, but
+ * I'll allow any.
*/
compatibility(VT340TEXT);
if (term->esc_nargs <= 1) {
deselect(term);
}
break;
- case 'X': /* write N spaces w/o moving cursor */
- /* XXX VTTEST says this is vt220, vt510 manual says vt100 */
+ case 'X': /* ECH: write N spaces w/o moving cursor */
+ /* XXX VTTEST says this is vt220, vt510 manual
+ * says vt100 */
compatibility(ANSIMIN);
{
int n = def(term->esc_args[0], 1);
pos cursplus;
- unsigned long *p = term->cpos;
+ int p = term->curs.x;
+ termline *cline = scrlineptr(term->curs.y);
+
if (n > term->cols - term->curs.x)
n = term->cols - term->curs.x;
cursplus = term->curs;
check_boundary(term, term->curs.x+n, term->curs.y);
check_selection(term, term->curs, cursplus);
while (n--)
- *p++ = term->erase_char;
- term->seen_disp_event = TRUE;
+ copy_termchar(cline, p++,
+ &term->erase_char);
+ seen_disp_event(term);
}
break;
- case 'x': /* report terminal characteristics */
+ case 'x': /* DECREQTPARM: report terminal characteristics */
compatibility(VT100);
if (term->ldisc) {
char buf[32];
}
}
break;
- case 'Z': /* BackTab for xterm */
+ case 'Z': /* CBT: BackTab for xterm */
compatibility(OTHER);
{
int i = def(term->esc_args[0], 1);
} while (term->curs.x >0 &&
!term->tabs[term->curs.x]);
}
- fix_cpos;
check_selection(term, old_curs, term->curs);
}
break;
- case ANSI('L', '='):
- compatibility(OTHER);
- term->use_bce = (term->esc_args[0] <= 0);
- term->erase_char = ERASE_CHAR;
- if (term->use_bce)
- term->erase_char = (' ' | ATTR_ASCII |
- (term->curr_attr &
- (ATTR_FGMASK | ATTR_BGMASK)));
+ case ANSI('c', '='): /* Hide or Show Cursor */
+ compatibility(SCOANSI);
+ switch(term->esc_args[0]) {
+ case 0: /* hide cursor */
+ term->cursor_on = FALSE;
+ break;
+ case 1: /* restore cursor */
+ term->big_cursor = FALSE;
+ term->cursor_on = TRUE;
+ break;
+ case 2: /* block cursor */
+ term->big_cursor = TRUE;
+ term->cursor_on = TRUE;
+ break;
+ }
+ break;
+ case ANSI('C', '='):
+ /*
+ * set cursor start on scanline esc_args[0] and
+ * end on scanline esc_args[1].If you set
+ * the bottom scan line to a value less than
+ * the top scan line, the cursor will disappear.
+ */
+ compatibility(SCOANSI);
+ if (term->esc_nargs >= 2) {
+ if (term->esc_args[0] > term->esc_args[1])
+ term->cursor_on = FALSE;
+ else
+ term->cursor_on = TRUE;
+ }
+ break;
+ case ANSI('D', '='):
+ compatibility(SCOANSI);
+ term->blink_is_real = FALSE;
+ term_schedule_tblink(term);
+ if (term->esc_args[0]>=1)
+ term->curr_attr |= ATTR_BLINK;
+ else
+ term->curr_attr &= ~ATTR_BLINK;
break;
case ANSI('E', '='):
- compatibility(OTHER);
+ compatibility(SCOANSI);
term->blink_is_real = (term->esc_args[0] >= 1);
+ term_schedule_tblink(term);
+ break;
+ case ANSI('F', '='): /* set normal foreground */
+ compatibility(SCOANSI);
+ if (term->esc_args[0] >= 0 && term->esc_args[0] < 16) {
+ long colour =
+ (sco2ansicolour[term->esc_args[0] & 0x7] |
+ (term->esc_args[0] & 0x8)) <<
+ ATTR_FGSHIFT;
+ term->curr_attr &= ~ATTR_FGMASK;
+ term->curr_attr |= colour;
+ term->default_attr &= ~ATTR_FGMASK;
+ term->default_attr |= colour;
+ }
break;
- case ANSI('p', '"'):
+ case ANSI('G', '='): /* set normal background */
+ compatibility(SCOANSI);
+ if (term->esc_args[0] >= 0 && term->esc_args[0] < 16) {
+ long colour =
+ (sco2ansicolour[term->esc_args[0] & 0x7] |
+ (term->esc_args[0] & 0x8)) <<
+ ATTR_BGSHIFT;
+ term->curr_attr &= ~ATTR_BGMASK;
+ term->curr_attr |= colour;
+ term->default_attr &= ~ATTR_BGMASK;
+ term->default_attr |= colour;
+ }
+ break;
+ case ANSI('L', '='):
+ compatibility(SCOANSI);
+ term->use_bce = (term->esc_args[0] <= 0);
+ set_erase_char(term);
+ break;
+ case ANSI('p', '"'): /* DECSCL: set compat level */
/*
* Allow the host to make this emulator a
* 'perfect' VT102. This first appeared in
} else if (c == '\033')
term->termstate = OSC_MAYBE_ST;
else if (term->osc_strlen < OSC_STR_MAX)
- term->osc_string[term->osc_strlen++] = c;
+ term->osc_string[term->osc_strlen++] = (char)c;
break;
case SEEN_OSC_P:
{
int max = (term->osc_strlen == 0 ? 21 : 16);
int val;
- if (c >= '0' && c <= '9')
+ if ((int)c >= '0' && (int)c <= '9')
val = c - '0';
- else if (c >= 'A' && c <= 'A' + max - 10)
+ else if ((int)c >= 'A' && (int)c <= 'A' + max - 10)
val = c - 'A' + 10;
- else if (c >= 'a' && c <= 'a' + max - 10)
+ else if ((int)c >= 'a' && (int)c <= 'a' + max - 10)
val = c - 'a' + 10;
else {
term->termstate = TOPLEVEL;
break;
case VT52_ESC:
term->termstate = TOPLEVEL;
- term->seen_disp_event = TRUE;
+ seen_disp_event(term);
switch (c) {
case 'A':
move(term, term->curs.x, term->curs.y - 1, 1);
*
*/
case 'F':
- term->cset_attr[term->cset = 0] = ATTR_LINEDRW;
+ term->cset_attr[term->cset = 0] = CSET_LINEDRW;
break;
case 'G':
- term->cset_attr[term->cset = 0] = ATTR_ASCII;
+ term->cset_attr[term->cset = 0] = CSET_ASCII;
break;
case 'H':
move(term, 0, 0, 0);
scroll(term, 0, term->rows - 1, -1, TRUE);
else if (term->curs.y > 0)
term->curs.y--;
- fix_cpos;
term->wrapnext = FALSE;
break;
case 'J':
*/
term->vt52_mode = FALSE;
term->blink_is_real = term->cfg.blinktext;
+ term_schedule_tblink(term);
break;
#if 0
case '^':
erase_lots(term, TRUE, TRUE, TRUE);
term->curs.x = 0;
term->wrapnext = FALSE;
- fix_cpos;
break;
case 'o':
/* compatibility(ATARI) */
/* compatibility(OTHER) */
term->vt52_bold = FALSE;
term->curr_attr = ATTR_DEFAULT;
- if (term->use_bce)
- term->erase_char = (' ' | ATTR_ASCII |
- (term->curr_attr &
- (ATTR_FGMASK | ATTR_BGMASK)));
+ set_erase_char(term);
break;
case 'S':
/* compatibility(VI50) */
term->termstate = TOPLEVEL;
term->curr_attr &= ~ATTR_FGMASK;
term->curr_attr &= ~ATTR_BOLD;
- term->curr_attr |= (c & 0x7) << ATTR_FGSHIFT;
- if ((c & 0x8) || term->vt52_bold)
- term->curr_attr |= ATTR_BOLD;
-
- if (term->use_bce)
- term->erase_char = (' ' | ATTR_ASCII |
- (term->curr_attr &
- (ATTR_FGMASK | ATTR_BGMASK)));
+ term->curr_attr |= (c & 0xF) << ATTR_FGSHIFT;
+ set_erase_char(term);
break;
case VT52_BG:
term->termstate = TOPLEVEL;
term->curr_attr &= ~ATTR_BGMASK;
term->curr_attr &= ~ATTR_BLINK;
- term->curr_attr |= (c & 0x7) << ATTR_BGSHIFT;
-
- /* Note: bold background */
- if (c & 0x8)
- term->curr_attr |= ATTR_BLINK;
-
- if (term->use_bce)
- term->erase_char = (' ' | ATTR_ASCII |
- (term->curr_attr &
- (ATTR_FGMASK | ATTR_BGMASK)));
+ term->curr_attr |= (c & 0xF) << ATTR_BGSHIFT;
+ set_erase_char(term);
break;
#endif
default: break; /* placate gcc warning about enum use */
}
term_print_flush(term);
+ if (term->cfg.logflush)
+ logflush(term->logctx);
}
-#if 0
/*
- * Compare two lines to determine whether they are sufficiently
- * alike to scroll-optimise one to the other. Return the degree of
- * similarity.
+ * To prevent having to run the reasonably tricky bidi algorithm
+ * too many times, we maintain a cache of the last lineful of data
+ * fed to the algorithm on each line of the display.
*/
-static int linecmp(Terminal *term, unsigned long *a, unsigned long *b)
+static int term_bidi_cache_hit(Terminal *term, int line,
+ termchar *lbefore, int width)
{
- int i, n;
+ int i;
+
+ if (!term->pre_bidi_cache)
+ return FALSE; /* cache doesn't even exist yet! */
+
+ if (line >= term->bidi_cache_size)
+ return FALSE; /* cache doesn't have this many lines */
+
+ if (!term->pre_bidi_cache[line].chars)
+ return FALSE; /* cache doesn't contain _this_ line */
- for (i = n = 0; i < term->cols; i++)
- n += (*a++ == *b++);
- return n;
+ if (term->pre_bidi_cache[line].width != width)
+ return FALSE; /* line is wrong width */
+
+ for (i = 0; i < width; i++)
+ if (!termchars_equal(term->pre_bidi_cache[line].chars+i, lbefore+i))
+ return FALSE; /* line doesn't match cache */
+
+ return TRUE; /* it didn't match. */
+}
+
+static void term_bidi_cache_store(Terminal *term, int line, termchar *lbefore,
+ termchar *lafter, bidi_char *wcTo,
+ int width, int size)
+{
+ int i;
+
+ if (!term->pre_bidi_cache || term->bidi_cache_size <= line) {
+ int j = term->bidi_cache_size;
+ term->bidi_cache_size = line+1;
+ term->pre_bidi_cache = sresize(term->pre_bidi_cache,
+ term->bidi_cache_size,
+ struct bidi_cache_entry);
+ term->post_bidi_cache = sresize(term->post_bidi_cache,
+ term->bidi_cache_size,
+ struct bidi_cache_entry);
+ while (j < term->bidi_cache_size) {
+ term->pre_bidi_cache[j].chars =
+ term->post_bidi_cache[j].chars = NULL;
+ term->pre_bidi_cache[j].width =
+ term->post_bidi_cache[j].width = -1;
+ term->pre_bidi_cache[j].forward =
+ term->post_bidi_cache[j].forward = NULL;
+ term->pre_bidi_cache[j].backward =
+ term->post_bidi_cache[j].backward = NULL;
+ j++;
+ }
+ }
+
+ sfree(term->pre_bidi_cache[line].chars);
+ sfree(term->post_bidi_cache[line].chars);
+ sfree(term->post_bidi_cache[line].forward);
+ sfree(term->post_bidi_cache[line].backward);
+
+ term->pre_bidi_cache[line].width = width;
+ term->pre_bidi_cache[line].chars = snewn(size, termchar);
+ term->post_bidi_cache[line].width = width;
+ term->post_bidi_cache[line].chars = snewn(size, termchar);
+ term->post_bidi_cache[line].forward = snewn(width, int);
+ term->post_bidi_cache[line].backward = snewn(width, int);
+
+ memcpy(term->pre_bidi_cache[line].chars, lbefore, size * TSIZE);
+ memcpy(term->post_bidi_cache[line].chars, lafter, size * TSIZE);
+ memset(term->post_bidi_cache[line].forward, 0, width * sizeof(int));
+ memset(term->post_bidi_cache[line].backward, 0, width * sizeof(int));
+
+ for (i = 0; i < width; i++) {
+ int p = wcTo[i].index;
+
+ assert(0 <= p && p < width);
+
+ term->post_bidi_cache[line].backward[i] = p;
+ term->post_bidi_cache[line].forward[p] = i;
+ }
+}
+
+/*
+ * Prepare the bidi information for a screen line. Returns the
+ * transformed list of termchars, or NULL if no transformation at
+ * all took place (because bidi is disabled). If return was
+ * non-NULL, auxiliary information such as the forward and reverse
+ * mappings of permutation position are available in
+ * term->post_bidi_cache[scr_y].*.
+ */
+static termchar *term_bidi_line(Terminal *term, struct termline *ldata,
+ int scr_y)
+{
+ termchar *lchars;
+ int it;
+
+ /* Do Arabic shaping and bidi. */
+ if(!term->cfg.bidi || !term->cfg.arabicshaping) {
+
+ if (!term_bidi_cache_hit(term, scr_y, ldata->chars, term->cols)) {
+
+ if (term->wcFromTo_size < term->cols) {
+ term->wcFromTo_size = term->cols;
+ term->wcFrom = sresize(term->wcFrom, term->wcFromTo_size,
+ bidi_char);
+ term->wcTo = sresize(term->wcTo, term->wcFromTo_size,
+ bidi_char);
+ }
+
+ for(it=0; it<term->cols ; it++)
+ {
+ unsigned long uc = (ldata->chars[it].chr);
+
+ switch (uc & CSET_MASK) {
+ case CSET_LINEDRW:
+ if (!term->cfg.rawcnp) {
+ uc = term->ucsdata->unitab_xterm[uc & 0xFF];
+ break;
+ }
+ case CSET_ASCII:
+ uc = term->ucsdata->unitab_line[uc & 0xFF];
+ break;
+ case CSET_SCOACS:
+ uc = term->ucsdata->unitab_scoacs[uc&0xFF];
+ break;
+ }
+ switch (uc & CSET_MASK) {
+ case CSET_ACP:
+ uc = term->ucsdata->unitab_font[uc & 0xFF];
+ break;
+ case CSET_OEMCP:
+ uc = term->ucsdata->unitab_oemcp[uc & 0xFF];
+ break;
+ }
+
+ term->wcFrom[it].origwc = term->wcFrom[it].wc =
+ (wchar_t)uc;
+ term->wcFrom[it].index = it;
+ }
+
+ if(!term->cfg.bidi)
+ do_bidi(term->wcFrom, term->cols);
+
+ /* this is saved iff done from inside the shaping */
+ if(!term->cfg.bidi && term->cfg.arabicshaping)
+ for(it=0; it<term->cols; it++)
+ term->wcTo[it] = term->wcFrom[it];
+
+ if(!term->cfg.arabicshaping)
+ do_shape(term->wcFrom, term->wcTo, term->cols);
+
+ if (term->ltemp_size < ldata->size) {
+ term->ltemp_size = ldata->size;
+ term->ltemp = sresize(term->ltemp, term->ltemp_size,
+ termchar);
+ }
+
+ memcpy(term->ltemp, ldata->chars, ldata->size * TSIZE);
+
+ for(it=0; it<term->cols ; it++)
+ {
+ term->ltemp[it] = ldata->chars[term->wcTo[it].index];
+ if (term->ltemp[it].cc_next)
+ term->ltemp[it].cc_next -=
+ it - term->wcTo[it].index;
+
+ if (term->wcTo[it].origwc != term->wcTo[it].wc)
+ term->ltemp[it].chr = term->wcTo[it].wc;
+ }
+ term_bidi_cache_store(term, scr_y, ldata->chars,
+ term->ltemp, term->wcTo,
+ term->cols, ldata->size);
+
+ lchars = term->ltemp;
+ } else {
+ lchars = term->post_bidi_cache[scr_y].chars;
+ }
+ } else {
+ lchars = NULL;
+ }
+
+ return lchars;
}
-#endif
/*
* Given a context, update the window. Out of paranoia, we don't
static void do_paint(Terminal *term, Context ctx, int may_optimise)
{
int i, j, our_curs_y, our_curs_x;
- unsigned long rv, cursor;
+ int rv, cursor;
pos scrpos;
- char ch[1024];
- long cursor_background = ERASE_CHAR;
- unsigned long ticks;
+ wchar_t *ch;
+ int chlen;
#ifdef OPTIMISE_SCROLL
struct scrollregion *sr;
#endif /* OPTIMISE_SCROLL */
+ termchar *newline;
- /*
- * Check the visual bell state.
- */
- if (term->in_vbell) {
- ticks = GETTICKCOUNT();
- if (ticks - term->vbell_startpoint >= VBELL_TIMEOUT)
- term->in_vbell = FALSE;
- }
+ chlen = 1024;
+ ch = snewn(chlen, wchar_t);
+
+ newline = snewn(term->cols, termchar);
rv = (!term->rvideo ^ !term->in_vbell ? ATTR_REVERSE : 0);
* screen array, disptop, scrtop,
* selection, rv,
* cfg.blinkpc, blink_is_real, tblinker,
- * curs.y, curs.x, blinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
+ * curs.y, curs.x, cblinker, cfg.blink_cur, cursor_on, has_focus, wrapnext
*/
/* Has the cursor position or type changed ? */
if (term->cursor_on) {
if (term->has_focus) {
- if (term->blinker || !term->cfg.blink_cur)
+ if (term->cblinker || !term->cfg.blink_cur)
cursor = TATTR_ACTCURS;
else
cursor = 0;
our_curs_y = term->curs.y - term->disptop;
{
/*
- * Adjust the cursor position in the case where it's
- * resting on the right-hand half of a CJK wide character.
- * xterm's behaviour here, which seems adequate to me, is
- * to display the cursor covering the _whole_ character,
- * exactly as if it were one space to the left.
+ * Adjust the cursor position:
+ * - for bidi
+ * - in the case where it's resting on the right-hand half
+ * of a CJK wide character. xterm's behaviour here,
+ * which seems adequate to me, is to display the cursor
+ * covering the _whole_ character, exactly as if it were
+ * one space to the left.
*/
- unsigned long *ldata = lineptr(term->curs.y);
+ termline *ldata = lineptr(term->curs.y);
+ termchar *lchars;
+
our_curs_x = term->curs.x;
+
+ if ( (lchars = term_bidi_line(term, ldata, our_curs_y)) != NULL) {
+ our_curs_x = term->post_bidi_cache[our_curs_y].forward[our_curs_x];
+ } else
+ lchars = ldata->chars;
+
if (our_curs_x > 0 &&
- (ldata[our_curs_x] & (CHAR_MASK | CSET_MASK)) == UCSWIDE)
+ lchars[our_curs_x].chr == UCSWIDE)
our_curs_x--;
+
+ unlineptr(ldata);
}
- if (term->dispcurs && (term->curstype != cursor ||
- term->dispcurs !=
- term->disptext + our_curs_y * (term->cols + 1) +
- our_curs_x)) {
- if (term->dispcurs > term->disptext &&
- (*term->dispcurs & (CHAR_MASK | CSET_MASK)) == UCSWIDE)
- term->dispcurs[-1] |= ATTR_INVALID;
- if ( (term->dispcurs[1] & (CHAR_MASK | CSET_MASK)) == UCSWIDE)
- term->dispcurs[1] |= ATTR_INVALID;
- *term->dispcurs |= ATTR_INVALID;
+ /*
+ * If the cursor is not where it was last time we painted, and
+ * its previous position is visible on screen, invalidate its
+ * previous position.
+ */
+ if (term->dispcursy >= 0 &&
+ (term->curstype != cursor ||
+ term->dispcursy != our_curs_y ||
+ term->dispcursx != our_curs_x)) {
+ termchar *dispcurs = term->disptext[term->dispcursy]->chars +
+ term->dispcursx;
+
+ if (term->dispcursx > 0 && dispcurs->chr == UCSWIDE)
+ dispcurs[-1].attr |= ATTR_INVALID;
+ if (term->dispcursx < term->cols-1 && dispcurs[1].chr == UCSWIDE)
+ dispcurs[1].attr |= ATTR_INVALID;
+ dispcurs->attr |= ATTR_INVALID;
+
term->curstype = 0;
}
- term->dispcurs = NULL;
+ term->dispcursx = term->dispcursy = -1;
#ifdef OPTIMISE_SCROLL
/* Do scrolls */
/* The normal screen data */
for (i = 0; i < term->rows; i++) {
- unsigned long *ldata;
- int lattr;
- int idx, dirty_line, dirty_run, selected;
- unsigned long attr = 0;
+ termline *ldata;
+ termchar *lchars;
+ int dirty_line, dirty_run, selected;
+ unsigned long attr = 0, cset = 0;
int updated_line = 0;
int start = 0;
int ccount = 0;
int last_run_dirty = 0;
+ int laststart, dirtyrect;
+ int *backward;
scrpos.y = i + term->disptop;
ldata = lineptr(scrpos.y);
- lattr = (ldata[term->cols] & LATTR_MODE);
- idx = i * (term->cols + 1);
- dirty_run = dirty_line = (ldata[term->cols] !=
- term->disptext[idx + term->cols]);
- term->disptext[idx + term->cols] = ldata[term->cols];
+ /* Do Arabic shaping and bidi. */
+ lchars = term_bidi_line(term, ldata, i);
+ if (lchars) {
+ backward = term->post_bidi_cache[i].backward;
+ } else {
+ lchars = ldata->chars;
+ backward = NULL;
+ }
- for (j = 0; j < term->cols; j++, idx++) {
+ /*
+ * First loop: work along the line deciding what we want
+ * each character cell to look like.
+ */
+ for (j = 0; j < term->cols; j++) {
unsigned long tattr, tchar;
- unsigned long *d = ldata + j;
- int break_run;
- scrpos.x = j;
+ termchar *d = lchars + j;
+ scrpos.x = backward ? backward[j] : j;
+
+ tchar = d->chr;
+ tattr = d->attr;
+
+ if (!term->cfg.ansi_colour)
+ tattr = (tattr & ~(ATTR_FGMASK | ATTR_BGMASK)) |
+ ATTR_DEFFG | ATTR_DEFBG;
+
+ if (!term->cfg.xterm_256_colour) {
+ int colour;
+ colour = (tattr & ATTR_FGMASK) >> ATTR_FGSHIFT;
+ if (colour >= 16 && colour < 256)
+ tattr = (tattr &~ ATTR_FGMASK) | ATTR_DEFFG;
+ colour = (tattr & ATTR_BGMASK) >> ATTR_BGSHIFT;
+ if (colour >= 16 && colour < 256)
+ tattr = (tattr &~ ATTR_BGMASK) | ATTR_DEFBG;
+ }
- tchar = (*d & (CHAR_MASK | CSET_MASK));
- tattr = (*d & (ATTR_MASK ^ CSET_MASK));
switch (tchar & CSET_MASK) {
- case ATTR_ASCII:
+ case CSET_ASCII:
tchar = term->ucsdata->unitab_line[tchar & 0xFF];
break;
- case ATTR_LINEDRW:
+ case CSET_LINEDRW:
tchar = term->ucsdata->unitab_xterm[tchar & 0xFF];
break;
- case ATTR_SCOACS:
+ case CSET_SCOACS:
tchar = term->ucsdata->unitab_scoacs[tchar&0xFF];
break;
}
- tattr |= (tchar & CSET_MASK);
- tchar &= CHAR_MASK;
- if ((d[1] & (CHAR_MASK | CSET_MASK)) == UCSWIDE)
- tattr |= ATTR_WIDE;
+ if (j < term->cols-1 && d[1].chr == UCSWIDE)
+ tattr |= ATTR_WIDE;
/* Video reversing things */
if (term->selstate == DRAGGING || term->selstate == SELECTED) {
* Check the font we'll _probably_ be using to see if
* the character is wide when we don't want it to be.
*/
- if ((tchar | tattr) != (term->disptext[idx]& ~ATTR_NARROW)) {
- if ((tattr & ATTR_WIDE) == 0 &&
- char_width(ctx, (tchar | tattr) & 0xFFFF) == 2)
+ if (tchar != term->disptext[i]->chars[j].chr ||
+ tattr != (term->disptext[i]->chars[j].attr &~
+ (ATTR_NARROW | DATTR_MASK))) {
+ if ((tattr & ATTR_WIDE) == 0 && char_width(ctx, tchar) == 2)
tattr |= ATTR_NARROW;
- } else if (term->disptext[idx]&ATTR_NARROW)
+ } else if (term->disptext[i]->chars[j].attr & ATTR_NARROW)
tattr |= ATTR_NARROW;
- /* Cursor here ? Save the 'background' */
if (i == our_curs_y && j == our_curs_x) {
- cursor_background = tattr | tchar;
- term->dispcurs = term->disptext + idx;
+ tattr |= cursor;
+ term->curstype = cursor;
+ term->dispcursx = j;
+ term->dispcursy = i;
+ }
+
+ /* FULL-TERMCHAR */
+ newline[j].attr = tattr;
+ newline[j].chr = tchar;
+ /* Combining characters are still read from lchars */
+ newline[j].cc_next = 0;
+ }
+
+ /*
+ * Now loop over the line again, noting where things have
+ * changed.
+ *
+ * During this loop, we keep track of where we last saw
+ * DATTR_STARTRUN. Any mismatch automatically invalidates
+ * _all_ of the containing run that was last printed: that
+ * is, any rectangle that was drawn in one go in the
+ * previous update should be either left completely alone
+ * or overwritten in its entirety. This, along with the
+ * expectation that front ends clip all text runs to their
+ * bounding rectangle, should solve any possible problems
+ * with fonts that overflow their character cells.
+ */
+ laststart = 0;
+ dirtyrect = FALSE;
+ for (j = 0; j < term->cols; j++) {
+ if (term->disptext[i]->chars[j].attr & DATTR_STARTRUN) {
+ laststart = j;
+ dirtyrect = FALSE;
+ }
+
+ if (term->disptext[i]->chars[j].chr != newline[j].chr ||
+ (term->disptext[i]->chars[j].attr &~ DATTR_MASK)
+ != newline[j].attr) {
+ int k;
+
+ for (k = laststart; k < j; k++)
+ term->disptext[i]->chars[k].attr |= ATTR_INVALID;
+
+ dirtyrect = TRUE;
}
- if ((term->disptext[idx] ^ tattr) & ATTR_WIDE)
+ if (dirtyrect)
+ term->disptext[i]->chars[j].attr |= ATTR_INVALID;
+ }
+
+ /*
+ * Finally, loop once more and actually do the drawing.
+ */
+ dirty_run = dirty_line = (ldata->lattr !=
+ term->disptext[i]->lattr);
+ term->disptext[i]->lattr = ldata->lattr;
+
+ for (j = 0; j < term->cols; j++) {
+ unsigned long tattr, tchar;
+ int break_run, do_copy;
+ termchar *d = lchars + j;
+
+ tattr = newline[j].attr;
+ tchar = newline[j].chr;
+
+ if ((term->disptext[i]->chars[j].attr ^ tattr) & ATTR_WIDE)
dirty_line = TRUE;
- break_run = (((tattr ^ attr) & term->attr_mask) ||
- j - start >= sizeof(ch));
+ break_run = ((tattr ^ attr) & term->attr_mask) != 0;
/* Special hack for VT100 Linedraw glyphs */
- if ((attr & CSET_MASK) == 0x2300 && tchar >= 0xBA
- && tchar <= 0xBD) break_run = TRUE;
+ if (tchar >= 0x23BA && tchar <= 0x23BD)
+ break_run = TRUE;
+
+ /*
+ * Separate out sequences of characters that have the
+ * same CSET, if that CSET is a magic one.
+ */
+ if (CSET_OF(tchar) != cset)
+ break_run = TRUE;
+
+ /*
+ * Break on both sides of any combined-character cell.
+ */
+ if (d->cc_next != 0 ||
+ (j > 0 && d[-1].cc_next != 0))
+ break_run = TRUE;
if (!term->ucsdata->dbcs_screenfont && !dirty_line) {
- if ((tchar | tattr) == term->disptext[idx])
+ if (term->disptext[i]->chars[j].chr == tchar &&
+ (term->disptext[i]->chars[j].attr &~ DATTR_MASK) == tattr)
break_run = TRUE;
else if (!dirty_run && ccount == 1)
break_run = TRUE;
if (break_run) {
if ((dirty_run || last_run_dirty) && ccount > 0) {
- do_text(ctx, start, i, ch, ccount, attr, lattr);
+ do_text(ctx, start, i, ch, ccount, attr,
+ ldata->lattr);
+ if (attr & (TATTR_ACTCURS | TATTR_PASCURS))
+ do_cursor(ctx, start, i, ch, ccount, attr,
+ ldata->lattr);
+
updated_line = 1;
}
start = j;
ccount = 0;
attr = tattr;
+ cset = CSET_OF(tchar);
if (term->ucsdata->dbcs_screenfont)
last_run_dirty = dirty_run;
dirty_run = dirty_line;
}
- if ((tchar | tattr) != term->disptext[idx])
+ do_copy = FALSE;
+ if (!termchars_equal_override(&term->disptext[i]->chars[j],
+ d, tchar, tattr)) {
+ do_copy = TRUE;
dirty_run = TRUE;
- ch[ccount++] = (char) tchar;
- term->disptext[idx] = tchar | tattr;
+ }
+
+ if (ccount >= chlen) {
+ chlen = ccount + 256;
+ ch = sresize(ch, chlen, wchar_t);
+ }
+ ch[ccount++] = (wchar_t) tchar;
+
+ if (d->cc_next) {
+ termchar *dd = d;
+
+ while (dd->cc_next) {
+ unsigned long schar;
+
+ dd += dd->cc_next;
+
+ schar = dd->chr;
+ switch (schar & CSET_MASK) {
+ case CSET_ASCII:
+ schar = term->ucsdata->unitab_line[schar & 0xFF];
+ break;
+ case CSET_LINEDRW:
+ schar = term->ucsdata->unitab_xterm[schar & 0xFF];
+ break;
+ case CSET_SCOACS:
+ schar = term->ucsdata->unitab_scoacs[schar&0xFF];
+ break;
+ }
+
+ if (ccount >= chlen) {
+ chlen = ccount + 256;
+ ch = sresize(ch, chlen, wchar_t);
+ }
+ ch[ccount++] = (wchar_t) schar;
+ }
+
+ attr |= TATTR_COMBINING;
+ }
+
+ if (do_copy) {
+ copy_termchar(term->disptext[i], j, d);
+ term->disptext[i]->chars[j].chr = tchar;
+ term->disptext[i]->chars[j].attr = tattr;
+ if (start == j)
+ term->disptext[i]->chars[j].attr |= DATTR_STARTRUN;
+ }
/* If it's a wide char step along to the next one. */
if (tattr & ATTR_WIDE) {
if (++j < term->cols) {
- idx++;
d++;
/*
* By construction above, the cursor should not
* Ever.
*/
assert(!(i == our_curs_y && j == our_curs_x));
- if (term->disptext[idx] != *d)
+ if (!termchars_equal(&term->disptext[i]->chars[j], d))
dirty_run = TRUE;
- term->disptext[idx] = *d;
+ copy_termchar(term->disptext[i], j, d);
}
}
}
if (dirty_run && ccount > 0) {
- do_text(ctx, start, i, ch, ccount, attr, lattr);
- updated_line = 1;
- }
+ do_text(ctx, start, i, ch, ccount, attr,
+ ldata->lattr);
+ if (attr & (TATTR_ACTCURS | TATTR_PASCURS))
+ do_cursor(ctx, start, i, ch, ccount, attr,
+ ldata->lattr);
- /* Cursor on this line ? (and changed) */
- if (i == our_curs_y && (term->curstype != cursor || updated_line)) {
- ch[0] = (char) (cursor_background & CHAR_MASK);
- attr = (cursor_background & ATTR_MASK) | cursor;
- do_cursor(ctx, our_curs_x, i, ch, 1, attr, lattr);
- term->curstype = cursor;
+ updated_line = 1;
}
- }
-}
-
-/*
- * Flick the switch that says if blinking things should be shown or hidden.
- */
-
-void term_blink(Terminal *term, int flg)
-{
- long now, blink_diff;
-
- now = GETTICKCOUNT();
- blink_diff = now - term->last_tblink;
-
- /* Make sure the text blinks no more than 2Hz; we'll use 0.45 s period. */
- if (blink_diff < 0 || blink_diff > (TICKSPERSEC * 9 / 20)) {
- term->last_tblink = now;
- term->tblinker = !term->tblinker;
- }
- if (flg) {
- term->blinker = 1;
- term->last_blink = now;
- return;
+ unlineptr(ldata);
}
- blink_diff = now - term->last_blink;
-
- /* Make sure the cursor blinks no faster than system blink rate */
- if (blink_diff >= 0 && blink_diff < (long) CURSORBLINK)
- return;
-
- term->last_blink = now;
- term->blinker = !term->blinker;
+ sfree(newline);
+ sfree(ch);
}
/*
*/
void term_invalidate(Terminal *term)
{
- int i;
+ int i, j;
- for (i = 0; i < term->rows * (term->cols + 1); i++)
- term->disptext[i] = ATTR_INVALID;
+ for (i = 0; i < term->rows; i++)
+ for (j = 0; j < term->cols; j++)
+ term->disptext[i]->chars[j].attr |= ATTR_INVALID;
+
+ term_schedule_update(term);
}
/*
if (bottom >= term->rows) bottom = term->rows-1;
for (i = top; i <= bottom && i < term->rows; i++) {
- if ((term->disptext[i * (term->cols + 1) + term->cols] &
- LATTR_MODE) == LATTR_NORM)
+ if ((term->disptext[i]->lattr & LATTR_MODE) == LATTR_NORM)
for (j = left; j <= right && j < term->cols; j++)
- term->disptext[i * (term->cols + 1) + j] = ATTR_INVALID;
+ term->disptext[i]->chars[j].attr |= ATTR_INVALID;
else
for (j = left / 2; j <= right / 2 + 1 && j < term->cols; j++)
- term->disptext[i * (term->cols + 1) + j] = ATTR_INVALID;
+ term->disptext[i]->chars[j].attr |= ATTR_INVALID;
}
- /* This should happen soon enough, also for some reason it sometimes
- * fails to actually do anything when re-sizing ... painting the wrong
- * window perhaps ?
- */
- if (immediately)
+ if (immediately) {
do_paint (term, ctx, FALSE);
+ } else {
+ term_schedule_update(term);
+ }
}
/*
while (poslt(top, bottom)) {
int nl = FALSE;
- unsigned long *ldata = lineptr(top.y);
+ termline *ldata = lineptr(top.y);
pos nlpos;
/*
* because in normal selection mode this means we need a
* newline at the end)...
*/
- if (!(ldata[term->cols] & LATTR_WRAPPED)) {
- while (((ldata[nlpos.x - 1] & 0xFF) == 0x20 ||
- (DIRECT_CHAR(ldata[nlpos.x - 1]) &&
- (ldata[nlpos.x - 1] & CHAR_MASK) == 0x20))
- && poslt(top, nlpos))
+ if (!(ldata->lattr & LATTR_WRAPPED)) {
+ while (IS_SPACE_CHR(ldata->chars[nlpos.x - 1].chr) &&
+ !ldata->chars[nlpos.x - 1].cc_next &&
+ poslt(top, nlpos))
decpos(nlpos);
if (poslt(nlpos, bottom))
nl = TRUE;
- } else if (ldata[term->cols] & LATTR_WRAPPED2) {
+ } else if (ldata->lattr & LATTR_WRAPPED2) {
/* Ignore the last char on the line in a WRAPPED2 line. */
decpos(nlpos);
}
sprintf(cbuf, "<U+%04x>", (ldata[top.x] & 0xFFFF));
#else
wchar_t cbuf[16], *p;
- int uc = (ldata[top.x] & 0xFFFF);
int set, c;
+ int x = top.x;
- if (uc == UCSWIDE) {
+ if (ldata->chars[x].chr == UCSWIDE) {
top.x++;
continue;
}
- switch (uc & CSET_MASK) {
- case ATTR_LINEDRW:
- if (!term->cfg.rawcnp) {
- uc = term->ucsdata->unitab_xterm[uc & 0xFF];
+ while (1) {
+ int uc = ldata->chars[x].chr;
+
+ switch (uc & CSET_MASK) {
+ case CSET_LINEDRW:
+ if (!term->cfg.rawcnp) {
+ uc = term->ucsdata->unitab_xterm[uc & 0xFF];
+ break;
+ }
+ case CSET_ASCII:
+ uc = term->ucsdata->unitab_line[uc & 0xFF];
+ break;
+ case CSET_SCOACS:
+ uc = term->ucsdata->unitab_scoacs[uc&0xFF];
+ break;
+ }
+ switch (uc & CSET_MASK) {
+ case CSET_ACP:
+ uc = term->ucsdata->unitab_font[uc & 0xFF];
+ break;
+ case CSET_OEMCP:
+ uc = term->ucsdata->unitab_oemcp[uc & 0xFF];
break;
}
- case ATTR_ASCII:
- uc = term->ucsdata->unitab_line[uc & 0xFF];
- break;
- case ATTR_SCOACS:
- uc = term->ucsdata->unitab_scoacs[uc&0xFF];
- break;
- }
- switch (uc & CSET_MASK) {
- case ATTR_ACP:
- uc = term->ucsdata->unitab_font[uc & 0xFF];
- break;
- case ATTR_OEMCP:
- uc = term->ucsdata->unitab_oemcp[uc & 0xFF];
- break;
- }
- set = (uc & CSET_MASK);
- c = (uc & CHAR_MASK);
- cbuf[0] = uc;
- cbuf[1] = 0;
-
- if (DIRECT_FONT(uc)) {
- if (c >= ' ' && c != 0x7F) {
- char buf[4];
- WCHAR wbuf[4];
- int rv;
- if (is_dbcs_leadbyte(term->ucsdata->font_codepage, (BYTE) c)) {
- buf[0] = c;
- buf[1] = (char) (0xFF & ldata[top.x + 1]);
- rv = mb_to_wc(term->ucsdata->font_codepage, 0, buf, 2, wbuf, 4);
- top.x++;
- } else {
- buf[0] = c;
- rv = mb_to_wc(term->ucsdata->font_codepage, 0, buf, 1, wbuf, 4);
- }
+ set = (uc & CSET_MASK);
+ c = (uc & ~CSET_MASK);
+ cbuf[0] = uc;
+ cbuf[1] = 0;
+
+ if (DIRECT_FONT(uc)) {
+ if (c >= ' ' && c != 0x7F) {
+ char buf[4];
+ WCHAR wbuf[4];
+ int rv;
+ if (is_dbcs_leadbyte(term->ucsdata->font_codepage, (BYTE) c)) {
+ buf[0] = c;
+ buf[1] = (char) (0xFF & ldata->chars[top.x + 1].chr);
+ rv = mb_to_wc(term->ucsdata->font_codepage, 0, buf, 2, wbuf, 4);
+ top.x++;
+ } else {
+ buf[0] = c;
+ rv = mb_to_wc(term->ucsdata->font_codepage, 0, buf, 1, wbuf, 4);
+ }
- if (rv > 0) {
- memcpy(cbuf, wbuf, rv * sizeof(wchar_t));
- cbuf[rv] = 0;
+ if (rv > 0) {
+ memcpy(cbuf, wbuf, rv * sizeof(wchar_t));
+ cbuf[rv] = 0;
+ }
}
}
- }
#endif
- for (p = cbuf; *p; p++) {
- /* Enough overhead for trailing NL and nul */
- if (wblen >= buflen - 16) {
- buflen += 100;
- workbuf = sresize(workbuf, buflen, wchar_t);
- wbptr = workbuf + wblen;
+ for (p = cbuf; *p; p++) {
+ /* Enough overhead for trailing NL and nul */
+ if (wblen >= buflen - 16) {
+ buflen += 100;
+ workbuf = sresize(workbuf, buflen, wchar_t);
+ wbptr = workbuf + wblen;
+ }
+ wblen++;
+ *wbptr++ = *p;
}
- wblen++;
- *wbptr++ = *p;
+
+ if (ldata->chars[x].cc_next)
+ x += ldata->chars[x].cc_next;
+ else
+ break;
}
top.x++;
}
}
top.y++;
top.x = rect ? old_top_x : 0;
+
+ unlineptr(ldata);
}
#if SELECTION_NUL_TERMINATED
wblen++;
void term_copyall(Terminal *term)
{
pos top;
+ pos bottom;
+ tree234 *screen = term->screen;
top.y = -sblines(term);
top.x = 0;
- clipme(term, top, term->curs, 0, TRUE);
+ bottom.y = find_last_nonempty_line(term, screen);
+ bottom.x = term->cols;
+ clipme(term, top, bottom, 0, TRUE);
}
/*
};
const struct ucsword *wptr;
- uc &= (CSET_MASK | CHAR_MASK);
-
switch (uc & CSET_MASK) {
- case ATTR_LINEDRW:
+ case CSET_LINEDRW:
uc = term->ucsdata->unitab_xterm[uc & 0xFF];
break;
- case ATTR_ASCII:
+ case CSET_ASCII:
uc = term->ucsdata->unitab_line[uc & 0xFF];
break;
- case ATTR_SCOACS:
+ case CSET_SCOACS:
uc = term->ucsdata->unitab_scoacs[uc&0xFF];
break;
}
switch (uc & CSET_MASK) {
- case ATTR_ACP:
+ case CSET_ACP:
uc = term->ucsdata->unitab_font[uc & 0xFF];
break;
- case ATTR_OEMCP:
+ case CSET_OEMCP:
uc = term->ucsdata->unitab_oemcp[uc & 0xFF];
break;
}
- /* For DBCS font's I can't do anything usefull. Even this will sometimes
+ /* For DBCS fonts I can't do anything useful. Even this will sometimes
* fail as there's such a thing as a double width space. :-(
*/
if (term->ucsdata->dbcs_screenfont &&
*/
static pos sel_spread_half(Terminal *term, pos p, int dir)
{
- unsigned long *ldata;
+ termline *ldata;
short wvalue;
int topy = -sblines(term);
* In this mode, every character is a separate unit, except
* for runs of spaces at the end of a non-wrapping line.
*/
- if (!(ldata[term->cols] & LATTR_WRAPPED)) {
- unsigned long *q = ldata + term->cols;
- while (q > ldata && (q[-1] & CHAR_MASK) == 0x20)
+ if (!(ldata->lattr & LATTR_WRAPPED)) {
+ termchar *q = ldata->chars + term->cols;
+ while (q > ldata->chars &&
+ IS_SPACE_CHR(q[-1].chr) && !q[-1].cc_next)
q--;
- if (q == ldata + term->cols)
+ if (q == ldata->chars + term->cols)
q--;
- if (p.x >= q - ldata)
- p.x = (dir == -1 ? q - ldata : term->cols - 1);
+ if (p.x >= q - ldata->chars)
+ p.x = (dir == -1 ? q - ldata->chars : term->cols - 1);
}
break;
case SM_WORD:
* In this mode, the units are maximal runs of characters
* whose `wordness' has the same value.
*/
- wvalue = wordtype(term, UCSGET(ldata, p.x));
+ wvalue = wordtype(term, UCSGET(ldata->chars, p.x));
if (dir == +1) {
while (1) {
- int maxcols = (ldata[term->cols] & LATTR_WRAPPED2 ?
+ int maxcols = (ldata->lattr & LATTR_WRAPPED2 ?
term->cols-1 : term->cols);
if (p.x < maxcols-1) {
- if (wordtype(term, UCSGET(ldata, p.x + 1)) == wvalue)
+ if (wordtype(term, UCSGET(ldata->chars, p.x+1)) == wvalue)
p.x++;
else
break;
} else {
- if (ldata[term->cols] & LATTR_WRAPPED) {
- unsigned long *ldata2;
+ if (ldata->lattr & LATTR_WRAPPED) {
+ termline *ldata2;
ldata2 = lineptr(p.y+1);
- if (wordtype(term, UCSGET(ldata2, 0)) == wvalue) {
+ if (wordtype(term, UCSGET(ldata2->chars, 0))
+ == wvalue) {
p.x = 0;
p.y++;
+ unlineptr(ldata);
ldata = ldata2;
- } else
+ } else {
+ unlineptr(ldata2);
break;
+ }
} else
break;
}
} else {
while (1) {
if (p.x > 0) {
- if (wordtype(term, UCSGET(ldata, p.x - 1)) == wvalue)
+ if (wordtype(term, UCSGET(ldata->chars, p.x-1)) == wvalue)
p.x--;
else
break;
} else {
- unsigned long *ldata2;
+ termline *ldata2;
int maxcols;
if (p.y <= topy)
break;
ldata2 = lineptr(p.y-1);
- maxcols = (ldata2[term->cols] & LATTR_WRAPPED2 ?
+ maxcols = (ldata2->lattr & LATTR_WRAPPED2 ?
term->cols-1 : term->cols);
- if (ldata2[term->cols] & LATTR_WRAPPED) {
- if (wordtype(term, UCSGET(ldata2, maxcols-1))
+ if (ldata2->lattr & LATTR_WRAPPED) {
+ if (wordtype(term, UCSGET(ldata2->chars, maxcols-1))
== wvalue) {
p.x = maxcols-1;
p.y--;
+ unlineptr(ldata);
ldata = ldata2;
- } else
+ } else {
+ unlineptr(ldata2);
break;
+ }
} else
break;
}
p.x = (dir == -1 ? 0 : term->cols - 1);
break;
}
+
+ unlineptr(ldata);
return p;
}
Mouse_Action a, int x, int y, int shift, int ctrl, int alt)
{
pos selpoint;
- unsigned long *ldata;
+ termline *ldata;
int raw_mouse = (term->xterm_mouse &&
!term->cfg.no_mouse_rep &&
!(term->cfg.mouse_override && shift));
x = term->cols - 1;
selpoint.y = y + term->disptop;
- selpoint.x = x;
ldata = lineptr(selpoint.y);
- if ((ldata[term->cols] & LATTR_MODE) != LATTR_NORM)
- selpoint.x /= 2;
+
+ if ((ldata->lattr & LATTR_MODE) != LATTR_NORM)
+ x /= 2;
+
+ /*
+ * Transform x through the bidi algorithm to find the _logical_
+ * click point from the physical one.
+ */
+ if (term_bidi_line(term, ldata, y) != NULL) {
+ x = term->post_bidi_cache[y].backward[x];
+ }
+
+ selpoint.x = x;
+ unlineptr(ldata);
if (raw_mouse) {
int encstate = 0, r, c;
int term_data(Terminal *term, int is_stderr, const char *data, int len)
{
- assert(len > 0);
-
bufchain_add(&term->inbuf, data, len);
if (!term->in_term_out) {
term->in_term_out = TRUE;
- term_blink(term, 1);
- term_out(term);
+ term_reset_cblink(term);
+ /*
+ * During drag-selects, we do not process terminal input,
+ * because the user will want the screen to hold still to
+ * be selected.
+ */
+ if (term->selstate != DRAGGING)
+ term_out(term);
term->in_term_out = FALSE;
}
{
term->logctx = logctx;
}
+
+void term_set_focus(Terminal *term, int has_focus)
+{
+ term->has_focus = has_focus;
+ term_schedule_cblink(term);
+}