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display.c
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display.c
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/* $Id: display.c,v 1.71 2010/07/18 14:10:09 htrb Exp $ */
#include <signal.h>
#include "fm.h"
/* *INDENT-OFF* */
#ifdef USE_COLOR
#define EFFECT_ANCHOR_START effect_anchor_start()
#define EFFECT_ANCHOR_END effect_anchor_end()
#define EFFECT_IMAGE_START effect_image_start()
#define EFFECT_IMAGE_END effect_image_end()
#define EFFECT_FORM_START effect_form_start()
#define EFFECT_FORM_END effect_form_end()
#define EFFECT_ACTIVE_START effect_active_start()
#define EFFECT_ACTIVE_END effect_active_end()
#define EFFECT_VISITED_START effect_visited_start()
#define EFFECT_VISITED_END effect_visited_end()
#define EFFECT_MARK_START effect_mark_start()
#define EFFECT_MARK_END effect_mark_end()
/*-
* color:
* 0 black
* 1 red
* 2 green
* 3 yellow
* 4 blue
* 5 magenta
* 6 cyan
* 7 white
*/
#define EFFECT_ANCHOR_START_C setfcolor(anchor_color)
#define EFFECT_IMAGE_START_C setfcolor(image_color)
#define EFFECT_FORM_START_C setfcolor(form_color)
#define EFFECT_ACTIVE_START_C (setfcolor(active_color), underline())
#define EFFECT_VISITED_START_C setfcolor(visited_color)
#ifdef USE_BG_COLOR
#define EFFECT_MARK_START_C setbcolor(mark_color)
#else
#define EFFECT_MARK_START_C standout()
#endif
#define EFFECT_IMAGE_END_C setfcolor(basic_color)
#define EFFECT_ANCHOR_END_C setfcolor(basic_color)
#define EFFECT_FORM_END_C setfcolor(basic_color)
#define EFFECT_ACTIVE_END_C (setfcolor(basic_color), underlineend())
#define EFFECT_VISITED_END_C setfcolor(basic_color)
#ifdef USE_BG_COLOR
#define EFFECT_MARK_END_C setbcolor(bg_color)
#else
#define EFFECT_MARK_END_C standend()
#endif
#define EFFECT_ANCHOR_START_M underline()
#define EFFECT_ANCHOR_END_M underlineend()
#define EFFECT_IMAGE_START_M standout()
#define EFFECT_IMAGE_END_M standend()
#define EFFECT_FORM_START_M standout()
#define EFFECT_FORM_END_M standend()
#define EFFECT_ACTIVE_START_NC underline()
#define EFFECT_ACTIVE_END_NC underlineend()
#define EFFECT_ACTIVE_START_M bold()
#define EFFECT_ACTIVE_END_M boldend()
#define EFFECT_VISITED_START_M /**/
#define EFFECT_VISITED_END_M /**/
#define EFFECT_MARK_START_M standout()
#define EFFECT_MARK_END_M standend()
#define define_effect(name_start,name_end,color_start,color_end,mono_start,mono_end) \
static void name_start { if (useColor) { color_start; } else { mono_start; }}\
static void name_end { if (useColor) { color_end; } else { mono_end; }}
define_effect(EFFECT_ANCHOR_START, EFFECT_ANCHOR_END, EFFECT_ANCHOR_START_C,
EFFECT_ANCHOR_END_C, EFFECT_ANCHOR_START_M, EFFECT_ANCHOR_END_M)
define_effect(EFFECT_IMAGE_START, EFFECT_IMAGE_END, EFFECT_IMAGE_START_C,
EFFECT_IMAGE_END_C, EFFECT_IMAGE_START_M, EFFECT_IMAGE_END_M)
define_effect(EFFECT_FORM_START, EFFECT_FORM_END, EFFECT_FORM_START_C,
EFFECT_FORM_END_C, EFFECT_FORM_START_M, EFFECT_FORM_END_M)
define_effect(EFFECT_MARK_START, EFFECT_MARK_END, EFFECT_MARK_START_C,
EFFECT_MARK_END_C, EFFECT_MARK_START_M, EFFECT_MARK_END_M)
/*****************/
static void
EFFECT_ACTIVE_START
{
if (useColor) {
if (useActiveColor) {
#ifdef __EMX__
if(!getenv("WINDOWID"))
setfcolor(active_color);
else
#endif
{
EFFECT_ACTIVE_START_C;
}
} else {
EFFECT_ACTIVE_START_NC;
}
} else {
EFFECT_ACTIVE_START_M;
}
}
static void
EFFECT_ACTIVE_END
{
if (useColor) {
if (useActiveColor) {
EFFECT_ACTIVE_END_C;
} else {
EFFECT_ACTIVE_END_NC;
}
} else {
EFFECT_ACTIVE_END_M;
}
}
static void
EFFECT_VISITED_START
{
if (useVisitedColor) {
if (useColor) {
EFFECT_VISITED_START_C;
} else {
EFFECT_VISITED_START_M;
}
}
}
static void
EFFECT_VISITED_END
{
if (useVisitedColor) {
if (useColor) {
EFFECT_VISITED_END_C;
} else {
EFFECT_VISITED_END_M;
}
}
}
#else /* not USE_COLOR */
#define EFFECT_ANCHOR_START underline()
#define EFFECT_ANCHOR_END underlineend()
#define EFFECT_IMAGE_START standout()
#define EFFECT_IMAGE_END standend()
#define EFFECT_FORM_START standout()
#define EFFECT_FORM_END standend()
#define EFFECT_ACTIVE_START bold()
#define EFFECT_ACTIVE_END boldend()
#define EFFECT_VISITED_START /**/
#define EFFECT_VISITED_END /**/
#define EFFECT_MARK_START standout()
#define EFFECT_MARK_END standend()
#endif /* not USE_COLOR */
/* *INDENT-ON* */
void
fmTerm(void)
{
if (fmInitialized) {
move(LASTLINE, 0);
clrtoeolx();
refresh();
#ifdef USE_IMAGE
if (activeImage)
loadImage(NULL, IMG_FLAG_STOP);
#endif
#ifdef USE_MOUSE
if (use_mouse)
mouse_end();
#endif /* USE_MOUSE */
reset_tty();
fmInitialized = FALSE;
}
}
/*
* Initialize routine.
*/
void
fmInit(void)
{
if (!fmInitialized) {
initscr();
term_raw();
term_noecho();
#ifdef USE_IMAGE
if (displayImage)
initImage();
#endif
}
fmInitialized = TRUE;
}
/*
* Display some lines.
*/
static Line *cline = NULL;
static int ccolumn = -1;
static int ulmode = 0, somode = 0, bomode = 0;
static int anch_mode = 0, emph_mode = 0, imag_mode = 0, form_mode = 0,
active_mode = 0, visited_mode = 0, mark_mode = 0, graph_mode = 0;
#ifdef USE_ANSI_COLOR
static Linecolor color_mode = 0;
#endif
#ifdef USE_BUFINFO
static Buffer *save_current_buf = NULL;
#endif
static char *delayed_msg = NULL;
static void drawAnchorCursor(Buffer *buf);
#define redrawBuffer(buf) redrawNLine(buf, LASTLINE)
static void redrawNLine(Buffer *buf, int n);
static Line *redrawLine(Buffer *buf, Line *l, int i);
#ifdef USE_IMAGE
static int image_touch = 0;
static int draw_image_flag = FALSE;
static Line *redrawLineImage(Buffer *buf, Line *l, int i);
#endif
static int redrawLineRegion(Buffer *buf, Line *l, int i, int bpos, int epos);
static void do_effects(Lineprop m);
#ifdef USE_ANSI_COLOR
static void do_color(Linecolor c);
#endif
static Str
make_lastline_link(Buffer *buf, char *title, char *url)
{
Str s = NULL, u;
#ifdef USE_M17N
Lineprop *pr;
#endif
ParsedURL pu;
char *p;
int l = COLS - 1, i;
if (title && *title) {
s = Strnew_m_charp("[", title, "]", NULL);
for (p = s->ptr; *p; p++) {
if (IS_CNTRL(*p) || IS_SPACE(*p))
*p = ' ';
}
if (url)
Strcat_charp(s, " ");
l -= get_Str_strwidth(s);
if (l <= 0)
return s;
}
if (!url)
return s;
parseURL2(url, &pu, baseURL(buf));
u = parsedURL2Str(&pu);
if (DecodeURL)
u = Strnew_charp(url_unquote_conv(u->ptr, buf->document_charset));
#ifdef USE_M17N
u = checkType(u, &pr, NULL);
#endif
if (l <= 4 || l >= get_Str_strwidth(u)) {
if (!s)
return u;
Strcat(s, u);
return s;
}
if (!s)
s = Strnew_size(COLS);
i = (l - 2) / 2;
#ifdef USE_M17N
while (i && pr[i] & PC_WCHAR2)
i--;
#endif
Strcat_charp_n(s, u->ptr, i);
Strcat_charp(s, "..");
i = get_Str_strwidth(u) - (COLS - 1 - get_Str_strwidth(s));
#ifdef USE_M17N
while (i < u->length && pr[i] & PC_WCHAR2)
i++;
#endif
Strcat_charp(s, &u->ptr[i]);
return s;
}
static Str
make_lastline_message(Buffer *buf)
{
Str msg, s = NULL;
int sl = 0;
if (displayLink) {
#ifdef USE_IMAGE
MapArea *a = retrieveCurrentMapArea(buf);
if (a)
s = make_lastline_link(buf, a->alt, a->url);
else
#endif
{
Anchor *a = retrieveCurrentAnchor(buf);
char *p = NULL;
if (a && a->title && *a->title)
p = a->title;
else {
Anchor *a_img = retrieveCurrentImg(buf);
if (a_img && a_img->title && *a_img->title)
p = a_img->title;
}
if (p || a)
s = make_lastline_link(buf, p, a ? a->url : NULL);
}
if (s) {
sl = get_Str_strwidth(s);
if (sl >= COLS - 3)
return s;
}
}
#ifdef USE_MOUSE
if (use_mouse && mouse_action.lastline_str)
msg = Strnew_charp(mouse_action.lastline_str);
else
#endif /* not USE_MOUSE */
msg = Strnew();
if (displayLineInfo && buf->currentLine != NULL && buf->lastLine != NULL) {
int cl = buf->currentLine->real_linenumber;
int ll = buf->lastLine->real_linenumber;
int r = (int)((double)cl * 100.0 / (double)(ll ? ll : 1) + 0.5);
Strcat(msg, Sprintf("%d/%d (%d%%)", cl, ll, r));
}
else
/* FIXME: gettextize? */
Strcat_charp(msg, "Viewing");
#ifdef USE_SSL
if (buf->ssl_certificate)
Strcat_charp(msg, "[SSL]");
#endif
Strcat_charp(msg, " <");
Strcat_charp(msg, buf->buffername);
if (s) {
int l = COLS - 3 - sl;
if (get_Str_strwidth(msg) > l) {
#ifdef USE_M17N
char *p;
for (p = msg->ptr; *p; p += get_mclen(p)) {
l -= get_mcwidth(p);
if (l < 0)
break;
}
l = p - msg->ptr;
#endif
Strtruncate(msg, l);
}
Strcat_charp(msg, "> ");
Strcat(msg, s);
}
else {
Strcat_charp(msg, ">");
}
return msg;
}
void
displayBuffer(Buffer *buf, int mode)
{
Str msg;
int ny = 0;
if (!buf)
return;
if (buf->topLine == NULL && readBufferCache(buf) == 0) { /* clear_buffer */
mode = B_FORCE_REDRAW;
}
if (buf->width == 0)
buf->width = INIT_BUFFER_WIDTH;
if (buf->height == 0)
buf->height = LASTLINE + 1;
if ((buf->width != INIT_BUFFER_WIDTH &&
(is_html_type(buf->type) || FoldLine))
|| buf->need_reshape) {
buf->need_reshape = TRUE;
reshapeBuffer(buf);
}
if (showLineNum) {
if (buf->lastLine && buf->lastLine->real_linenumber > 0)
buf->rootX = (int)(log(buf->lastLine->real_linenumber + 0.1)
/ log(10)) + 2;
if (buf->rootX < 5)
buf->rootX = 5;
if (buf->rootX > COLS)
buf->rootX = COLS;
}
else
buf->rootX = 0;
buf->COLS = COLS - buf->rootX;
if (nTab > 1
#ifdef USE_MOUSE
|| mouse_action.menu_str
#endif
) {
if (mode == B_FORCE_REDRAW || mode == B_REDRAW_IMAGE)
calcTabPos();
ny = LastTab->y + 2;
if (ny > LASTLINE)
ny = LASTLINE;
}
if (buf->rootY != ny || buf->LINES != LASTLINE - ny) {
buf->rootY = ny;
buf->LINES = LASTLINE - ny;
arrangeCursor(buf);
mode = B_REDRAW_IMAGE;
}
if (mode == B_FORCE_REDRAW || mode == B_SCROLL || mode == B_REDRAW_IMAGE ||
cline != buf->topLine || ccolumn != buf->currentColumn) {
#ifdef USE_RAW_SCROLL
if (
#ifdef USE_IMAGE
!(activeImage && displayImage && draw_image_flag) &&
#endif
mode == B_SCROLL && cline && buf->currentColumn == ccolumn) {
int n = buf->topLine->linenumber - cline->linenumber;
if (n > 0 && n < buf->LINES) {
move(LASTLINE, 0);
clrtoeolx();
refresh();
scroll(n);
}
else if (n < 0 && n > -buf->LINES) {
#if 0 /* defined(__CYGWIN__) */
move(LASTLINE + n + 1, 0);
clrtoeolx();
refresh();
#endif /* defined(__CYGWIN__) */
rscroll(-n);
}
redrawNLine(buf, n);
}
else
#endif
{
#ifdef USE_IMAGE
if (activeImage &&
(mode == B_REDRAW_IMAGE ||
cline != buf->topLine || ccolumn != buf->currentColumn)) {
if (draw_image_flag)
clear();
clearImage();
loadImage(buf, IMG_FLAG_STOP);
image_touch++;
draw_image_flag = FALSE;
}
#endif
redrawBuffer(buf);
}
cline = buf->topLine;
ccolumn = buf->currentColumn;
}
if (buf->topLine == NULL)
buf->topLine = buf->firstLine;
#ifdef USE_IMAGE
if (buf->need_reshape) {
displayBuffer(buf, B_FORCE_REDRAW);
return;
}
#endif
drawAnchorCursor(buf);
msg = make_lastline_message(buf);
if (buf->firstLine == NULL) {
/* FIXME: gettextize? */
Strcat_charp(msg, "\tNo Line");
}
if (delayed_msg != NULL) {
disp_message(delayed_msg, FALSE);
delayed_msg = NULL;
refresh();
}
standout();
message(msg->ptr, buf->cursorX + buf->rootX, buf->cursorY + buf->rootY);
standend();
term_title(conv_to_system(buf->buffername));
refresh();
#ifdef USE_IMAGE
if (activeImage && displayImage && buf->img) {
drawImage();
}
#endif
#ifdef USE_BUFINFO
if (buf != save_current_buf) {
saveBufferInfo();
save_current_buf = buf;
}
#endif
}
static void
drawAnchorCursor0(Buffer *buf, AnchorList *al, int hseq, int prevhseq,
int tline, int eline, int active)
{
int i, j;
Line *l;
Anchor *an;
l = buf->topLine;
for (j = 0; j < al->nanchor; j++) {
an = &al->anchors[j];
if (an->start.line < tline)
continue;
if (an->start.line >= eline)
return;
for (;; l = l->next) {
if (l == NULL)
return;
if (l->linenumber == an->start.line)
break;
}
if (hseq >= 0 && an->hseq == hseq) {
for (i = an->start.pos; i < an->end.pos; i++) {
if (l->propBuf[i] & (PE_IMAGE | PE_ANCHOR | PE_FORM)) {
if (active)
l->propBuf[i] |= PE_ACTIVE;
else
l->propBuf[i] &= ~PE_ACTIVE;
}
}
if (active)
redrawLineRegion(buf, l, l->linenumber - tline + buf->rootY,
an->start.pos, an->end.pos);
}
else if (prevhseq >= 0 && an->hseq == prevhseq) {
if (active)
redrawLineRegion(buf, l, l->linenumber - tline + buf->rootY,
an->start.pos, an->end.pos);
}
}
}
static void
drawAnchorCursor(Buffer *buf)
{
Anchor *an;
int hseq, prevhseq;
int tline, eline;
if (!buf->firstLine || !buf->hmarklist)
return;
if (!buf->href && !buf->formitem)
return;
an = retrieveCurrentAnchor(buf);
if (!an)
an = retrieveCurrentMap(buf);
if (an)
hseq = an->hseq;
else
hseq = -1;
tline = buf->topLine->linenumber;
eline = tline + buf->LINES;
prevhseq = buf->hmarklist->prevhseq;
if (buf->href) {
drawAnchorCursor0(buf, buf->href, hseq, prevhseq, tline, eline, 1);
drawAnchorCursor0(buf, buf->href, hseq, -1, tline, eline, 0);
}
if (buf->formitem) {
drawAnchorCursor0(buf, buf->formitem, hseq, prevhseq, tline, eline, 1);
drawAnchorCursor0(buf, buf->formitem, hseq, -1, tline, eline, 0);
}
buf->hmarklist->prevhseq = hseq;
}
static void
redrawNLine(Buffer *buf, int n)
{
Line *l;
int i;
#ifdef USE_COLOR
if (useColor) {
EFFECT_ANCHOR_END_C;
#ifdef USE_BG_COLOR
setbcolor(bg_color);
#endif /* USE_BG_COLOR */
}
#endif /* USE_COLOR */
if (nTab > 1
#ifdef USE_MOUSE
|| mouse_action.menu_str
#endif
) {
TabBuffer *t;
int l;
move(0, 0);
#ifdef USE_MOUSE
if (mouse_action.menu_str)
addstr(mouse_action.menu_str);
#endif
clrtoeolx();
for (t = FirstTab; t; t = t->nextTab) {
move(t->y, t->x1);
if (t == CurrentTab)
bold();
addch('[');
l = t->x2 - t->x1 - 1 - get_strwidth(t->currentBuffer->buffername);
if (l < 0)
l = 0;
if (l / 2 > 0)
addnstr_sup(" ", l / 2);
if (t == CurrentTab)
EFFECT_ACTIVE_START;
addnstr(t->currentBuffer->buffername, t->x2 - t->x1 - l);
if (t == CurrentTab)
EFFECT_ACTIVE_END;
if ((l + 1) / 2 > 0)
addnstr_sup(" ", (l + 1) / 2);
move(t->y, t->x2);
addch(']');
if (t == CurrentTab)
boldend();
}
#if 0
move(0, COLS - 2);
addstr(" x");
#endif
move(LastTab->y + 1, 0);
for (i = 0; i < COLS; i++)
addch('~');
}
for (i = 0, l = buf->topLine; i < buf->LINES; i++, l = l->next) {
if (i >= buf->LINES - n || i < -n)
l = redrawLine(buf, l, i + buf->rootY);
if (l == NULL)
break;
}
if (n > 0) {
move(i + buf->rootY, 0);
clrtobotx();
}
#ifdef USE_IMAGE
if (!(activeImage && displayImage && buf->img))
return;
move(buf->cursorY + buf->rootY, buf->cursorX + buf->rootX);
for (i = 0, l = buf->topLine; i < buf->LINES && l; i++, l = l->next) {
if (i >= buf->LINES - n || i < -n)
redrawLineImage(buf, l, i + buf->rootY);
}
getAllImage(buf);
#endif
}
static Line *
redrawLine(Buffer *buf, Line *l, int i)
{
int j, pos, rcol, ncol, delta = 1;
int column = buf->currentColumn;
char *p;
Lineprop *pr;
#ifdef USE_ANSI_COLOR
Linecolor *pc;
#endif
#ifdef USE_COLOR
Anchor *a;
ParsedURL url;
int k, vpos = -1;
#endif
if (l == NULL) {
if (buf->pagerSource) {
l = getNextPage(buf, buf->LINES + buf->rootY - i);
if (l == NULL)
return NULL;
}
else
return NULL;
}
move(i, 0);
if (showLineNum) {
char tmp[16];
if (!buf->rootX) {
if (buf->lastLine->real_linenumber > 0)
buf->rootX = (int)(log(buf->lastLine->real_linenumber + 0.1)
/ log(10)) + 2;
if (buf->rootX < 5)
buf->rootX = 5;
if (buf->rootX > COLS)
buf->rootX = COLS;
buf->COLS = COLS - buf->rootX;
}
if (l->real_linenumber && !l->bpos)
sprintf(tmp, "%*ld:", buf->rootX - 1, l->real_linenumber);
else
sprintf(tmp, "%*s ", buf->rootX - 1, "");
addstr(tmp);
}
move(i, buf->rootX);
if (l->width < 0)
l->width = COLPOS(l, l->len);
if (l->len == 0 || l->width - 1 < column) {
clrtoeolx();
return l;
}
/* need_clrtoeol(); */
pos = columnPos(l, column);
p = &(l->lineBuf[pos]);
pr = &(l->propBuf[pos]);
#ifdef USE_ANSI_COLOR
if (useColor && l->colorBuf)
pc = &(l->colorBuf[pos]);
else
pc = NULL;
#endif
rcol = COLPOS(l, pos);
for (j = 0; rcol - column < buf->COLS && pos + j < l->len; j += delta) {
#ifdef USE_COLOR
if (useVisitedColor && vpos <= pos + j && !(pr[j] & PE_VISITED)) {
a = retrieveAnchor(buf->href, l->linenumber, pos + j);
if (a) {
parseURL2(a->url, &url, baseURL(buf));
if (getHashHist(URLHist, parsedURL2Str(&url)->ptr)) {
for (k = a->start.pos; k < a->end.pos; k++)
pr[k - pos] |= PE_VISITED;
}
vpos = a->end.pos;
}
}
#endif
#ifdef USE_M17N
delta = wtf_len((wc_uchar *) & p[j]);
#endif
ncol = COLPOS(l, pos + j + delta);
if (ncol - column > buf->COLS)
break;
#ifdef USE_ANSI_COLOR
if (pc)
do_color(pc[j]);
#endif
if (rcol < column) {
for (rcol = column; rcol < ncol; rcol++)
addChar(' ', 0);
continue;
}
if (p[j] == '\t') {
for (; rcol < ncol; rcol++)
addChar(' ', 0);
}
else {
#ifdef USE_M17N
addMChar(&p[j], pr[j], delta);
#else
addChar(p[j], pr[j]);
#endif
}
rcol = ncol;
}
if (somode) {
somode = FALSE;
standend();
}
if (ulmode) {
ulmode = FALSE;
underlineend();
}
if (bomode) {
bomode = FALSE;
boldend();
}
if (emph_mode) {
emph_mode = FALSE;
boldend();
}
if (anch_mode) {
anch_mode = FALSE;
EFFECT_ANCHOR_END;
}
if (imag_mode) {
imag_mode = FALSE;
EFFECT_IMAGE_END;
}
if (form_mode) {
form_mode = FALSE;
EFFECT_FORM_END;
}
if (visited_mode) {
visited_mode = FALSE;
EFFECT_VISITED_END;
}
if (active_mode) {
active_mode = FALSE;
EFFECT_ACTIVE_END;
}
if (mark_mode) {
mark_mode = FALSE;
EFFECT_MARK_END;
}
if (graph_mode) {
graph_mode = FALSE;
graphend();
}
#ifdef USE_ANSI_COLOR
if (color_mode)
do_color(0);
#endif
if (rcol - column < buf->COLS)
clrtoeolx();
return l;
}
#ifdef USE_IMAGE
static Line *
redrawLineImage(Buffer *buf, Line *l, int i)
{
int j, pos, rcol;
int column = buf->currentColumn;
Anchor *a;
int x, y, sx, sy, w, h;
if (l == NULL)
return NULL;
if (l->width < 0)
l->width = COLPOS(l, l->len);
if (l->len == 0 || l->width - 1 < column)
return l;
pos = columnPos(l, column);
rcol = COLPOS(l, pos);
for (j = 0; rcol - column < buf->COLS && pos + j < l->len; j++) {
if (rcol - column < 0) {
rcol = COLPOS(l, pos + j + 1);
continue;
}
a = retrieveAnchor(buf->img, l->linenumber, pos + j);
if (a && a->image && a->image->touch < image_touch) {
Image *image = a->image;
ImageCache *cache;
cache = image->cache = getImage(image, baseURL(buf),
buf->image_flag);
if (cache) {
if ((image->width < 0 && cache->width > 0) ||
(image->height < 0 && cache->height > 0)) {
image->width = cache->width;
image->height = cache->height;
buf->need_reshape = TRUE;
}
x = (int)((rcol - column + buf->rootX) * pixel_per_char);
y = (int)(i * pixel_per_line);
sx = (int)((rcol - COLPOS(l, a->start.pos)) * pixel_per_char);
sy = (int)((l->linenumber - image->y) * pixel_per_line);
if (sx == 0 && x + image->xoffset >= 0)
x += image->xoffset;
else
sx -= image->xoffset;
if (sy == 0 && y + image->yoffset >= 0)
y += image->yoffset;
else
sy -= image->yoffset;
if (image->width > 0)
w = image->width - sx;
else
w = (int)(8 * pixel_per_char - sx);
if (image->height > 0)
h = image->height - sy;
else
h = (int)(pixel_per_line - sy);
if (w > (int)((buf->rootX + buf->COLS) * pixel_per_char - x))
w = (int)((buf->rootX + buf->COLS) * pixel_per_char - x);
if (h > (int)(LASTLINE * pixel_per_line - y))
h = (int)(LASTLINE * pixel_per_line - y);
addImage(cache, x, y, sx, sy, w, h);
image->touch = image_touch;
draw_image_flag = TRUE;
}
}
rcol = COLPOS(l, pos + j + 1);
}
return l;
}
#endif
static int
redrawLineRegion(Buffer *buf, Line *l, int i, int bpos, int epos)
{
int j, pos, rcol, ncol, delta = 1;
int column = buf->currentColumn;
char *p;
Lineprop *pr;
#ifdef USE_ANSI_COLOR
Linecolor *pc;
#endif
int bcol, ecol;
#ifdef USE_COLOR
Anchor *a;
ParsedURL url;
int k, vpos = -1;
#endif
if (l == NULL)
return 0;
pos = columnPos(l, column);
p = &(l->lineBuf[pos]);
pr = &(l->propBuf[pos]);
#ifdef USE_ANSI_COLOR
if (useColor && l->colorBuf)
pc = &(l->colorBuf[pos]);
else
pc = NULL;
#endif
rcol = COLPOS(l, pos);
bcol = bpos - pos;
ecol = epos - pos;
for (j = 0; rcol - column < buf->COLS && pos + j < l->len; j += delta) {
#ifdef USE_COLOR
if (useVisitedColor && vpos <= pos + j && !(pr[j] & PE_VISITED)) {
a = retrieveAnchor(buf->href, l->linenumber, pos + j);
if (a) {
parseURL2(a->url, &url, baseURL(buf));
if (getHashHist(URLHist, parsedURL2Str(&url)->ptr)) {
for (k = a->start.pos; k < a->end.pos; k++)
pr[k - pos] |= PE_VISITED;
}
vpos = a->end.pos;
}
}
#endif
#ifdef USE_M17N
delta = wtf_len((wc_uchar *) & p[j]);
#endif
ncol = COLPOS(l, pos + j + delta);
if (ncol - column > buf->COLS)
break;
#ifdef USE_ANSI_COLOR
if (pc)
do_color(pc[j]);
#endif
if (j >= bcol && j < ecol) {
if (rcol < column) {
move(i, buf->rootX);
for (rcol = column; rcol < ncol; rcol++)
addChar(' ', 0);
continue;
}
move(i, rcol - column + buf->rootX);
if (p[j] == '\t') {
for (; rcol < ncol; rcol++)
addChar(' ', 0);
}
else
#ifdef USE_M17N
addMChar(&p[j], pr[j], delta);
#else
addChar(p[j], pr[j]);
#endif
}
rcol = ncol;
}
if (somode) {
somode = FALSE;
standend();
}
if (ulmode) {
ulmode = FALSE;
underlineend();
}
if (bomode) {
bomode = FALSE;
boldend();
}
if (emph_mode) {
emph_mode = FALSE;
boldend();
}
if (anch_mode) {
anch_mode = FALSE;
EFFECT_ANCHOR_END;
}
if (imag_mode) {
imag_mode = FALSE;
EFFECT_IMAGE_END;
}
if (form_mode) {
form_mode = FALSE;
EFFECT_FORM_END;
}
if (visited_mode) {
visited_mode = FALSE;
EFFECT_VISITED_END;
}
if (active_mode) {
active_mode = FALSE;