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fixed the scrolling bug and cleaned some stuff.

This commit is contained in:
Aurélien Aptel 2009-06-17 02:58:40 +02:00
parent d5f4554431
commit b8ffa1d7e9
1 changed files with 68 additions and 61 deletions
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43
st.c
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@ -37,7 +37,7 @@
enum { ATnone=0 , ATreverse=1 , ATunderline=2, ATbold=4 };
enum { CSup, CSdown, CSright, CSleft, CShide, CSdraw, CSwrap, CSsave, CSload };
enum { CRset=1, CRupdate=2 };
enum { TMwrap=1, TMinsert=2, TMaltcharset };
enum { TMwrap=1, TMinsert=2 };
enum { SCupdate, SCredraw };
typedef int Color;
@ -154,6 +154,7 @@ void xdrawc(int, int, Glyph);
void xinit(void);
void xscroll(void);
void cursor(int);
/* Globals */
DC dc;
@ -201,7 +202,6 @@ sigchld(int a) {
exit(EXIT_FAILURE);
}
void
ttynew(void) {
int m, s;
@ -328,21 +328,19 @@ void
tscroll(void) {
Line temp = term.line[term.top];
int i;
/* X stuff _before_ the line swapping (results in wrong line index) */
xscroll();
for(i = term.top; i < term.bot; i++)
term.line[i] = term.line[i+1];
memset(temp, 0, sizeof(Glyph) * term.col);
term.line[term.bot] = temp;
xscroll();
}
void
tnewline(void) {
int y = term.c.y + 1;
if(y > term.bot) {
if(y > term.bot)
tscroll(), y = term.bot;
}
tmoveto(0, y);
}
@ -476,6 +474,13 @@ tinsertblank(int n) {
tclearregion(src, term.c.y, dst, term.c.y);
}
void
tsetlinestate(int n, int state) {
int i;
for(i = 0; i < term.col; i++)
term.line[n][i].state |= state;
}
void
tinsertblankline (int n) {
int i;
@ -497,10 +502,11 @@ tinsertblankline (int n) {
term.line[i-n] = blank;
/* blank it */
memset(blank, 0, term.col * sizeof(Glyph));
tsetlinestate(i, CRupdate);
tsetlinestate(i-n, CRupdate);
}
}
void
tdeleteline(int n) {
int i;
@ -522,6 +528,8 @@ tdeleteline(int n) {
term.line[i+n] = blank;
/* blank it */
memset(blank, 0, term.col * sizeof(Glyph));
tsetlinestate(i, CRupdate);
tsetlinestate(i-n, CRupdate);
}
}
@ -588,7 +596,6 @@ tsetscroll(int t, int b) {
term.bot = b;
}
void
eschandle(void) {
switch(escseq.pre) {
@ -846,7 +853,6 @@ xgetcol(const char *s) {
return color.pixel;
}
void
xclear(int x1, int y1, int x2, int y2) {
XClearArea(xw.dis, xw.win,
@ -855,7 +861,6 @@ xclear(int x1, int y1, int x2, int y2) {
False);
}
void
xscroll(void) {
int srcy = (term.top+1) * xw.ch;
@ -867,9 +872,6 @@ xscroll(void) {
xclear(0, term.bot, term.col-1, term.bot);
}
void
xinit(void) {
XGCValues values;
@ -963,14 +965,15 @@ xcursor(int mode) {
/* remove the old cursor */
if(term.line[oldy][oldx].state & CRset)
xdrawc(oldx, oldy, term.line[oldy][oldx]);
else xclear(oldx, oldy, oldx, oldy); /* XXX: maybe a bug */
if(mode == CSdraw && !term.c.hidden) {
else
xclear(oldx, oldy, oldx, oldy);
/* draw the new one */
if(mode == CSdraw) {
xdrawc(term.c.x, term.c.y, g);
oldx = term.c.x, oldy = term.c.y;
}
}
void
draw(int redraw_all) {
int x, y;
@ -978,14 +981,18 @@ draw(int redraw_all) {
if(redraw_all)
XClearWindow(xw.dis, xw.win);
/* XXX: drawing could be optimised */
for(y = 0; y < term.row; y++) {
for(x = 0; x < term.col; x++) {
changed = term.line[y][x].state & CRupdate;
set = term.line[y][x].state & CRset;
if((changed && set) || (redraw_all && set)) {
if(redraw_all || changed) {
term.line[y][x].state &= ~CRupdate;
if(set)
xdrawc(x, y, term.line[y][x]);
else
xclear(x, y, x, y);
}
}
}