X-Git-Url: https://jasonwoof.com/gitweb/?a=blobdiff_plain;f=st.c;h=b7dfd559ab211369fa866304735910f225ae8170;hb=c084c06b402de4fe995734a2c89cae26ff7c9064;hp=741e6807763851c7693cbc77d55e1cfe34112e6a;hpb=6c0a1eff2fb2419b9bbfb545d0cf21a2e524efb2;p=st.git diff --git a/st.c b/st.c index 741e680..b7dfd55 100644 --- a/st.c +++ b/st.c @@ -24,6 +24,7 @@ #include #include #include +#include #if defined(__linux) #include @@ -163,7 +164,7 @@ typedef struct { int col; /* nb col */ Line* line; /* screen */ Line* alt; /* alternate screen */ - bool* dirty; /* dirtyness of lines */ + bool* dirty; /* dirtyness of lines */ TCursor c; /* cursor */ int top; /* top scroll limit */ int bot; /* bottom scroll limit */ @@ -171,6 +172,7 @@ typedef struct { int esc; /* escape state flags */ char title[ESC_TITLE_SIZ]; int titlelen; + bool *tabs; } Term; /* Purely graphic info */ @@ -178,15 +180,13 @@ typedef struct { Display* dpy; Colormap cmap; Window win; - Pixmap buf; + XdbeBackBuffer buf; Atom xembed; XIM xim; XIC xic; int scr; int w; /* window width */ int h; /* window height */ - int bufw; /* pixmap width */ - int bufh; /* pixmap height */ int ch; /* char height */ int cw; /* char width */ char state; /* focus, redraw, visible */ @@ -259,6 +259,7 @@ static void tsetattr(int*, int); static void tsetchar(char*); static void tsetscroll(int, int); static void tswapscreen(void); +static void tsetdirt(int, int); static void tfulldirt(void); static void ttynew(void); @@ -269,7 +270,7 @@ static void ttywrite(const char *, size_t); static void xdraws(char *, Glyph, int, int, int, int); static void xhints(void); static void xclear(int, int, int, int); -static void xcopy(int, int, int, int); +static void xcopy(); static void xdrawcursor(void); static void xinit(void); static void xloadcols(void); @@ -446,8 +447,8 @@ utf8size(char *s) { void selinit(void) { - sel.tclick1.tv_sec = 0; - sel.tclick1.tv_usec = 0; + memset(&sel.tclick1, 0, sizeof(sel.tclick1)); + memset(&sel.tclick2, 0, sizeof(sel.tclick2)); sel.mode = 0; sel.bx = -1; sel.clip = NULL; @@ -520,8 +521,7 @@ bpress(XEvent *e) { mousereport(e); else if(e->xbutton.button == Button1) { if(sel.bx != -1) - for(int i=sel.b.y; i<=sel.e.y; i++) - term.dirty[i] = 1; + tsetdirt(sel.b.y, sel.e.y); sel.mode = 1; sel.ex = sel.bx = X2COL(e->xbutton.x); sel.ey = sel.by = Y2ROW(e->xbutton.y); @@ -531,21 +531,28 @@ bpress(XEvent *e) { void selcopy(void) { char *str, *ptr; - int x, y, sz, sl, ls = 0; + int x, y, bufsize, is_selected = 0; if(sel.bx == -1) str = NULL; + else { - sz = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ; - ptr = str = malloc(sz); + bufsize = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ; + ptr = str = malloc(bufsize); + + /* append every set & selected glyph to the selection */ for(y = 0; y < term.row; y++) { - for(x = 0; x < term.col; x++) - if(term.line[y][x].state & GLYPH_SET && (ls = selected(x, y))) { - sl = utf8size(term.line[y][x].c); - memcpy(ptr, term.line[y][x].c, sl); - ptr += sl; + for(x = 0; x < term.col; x++) { + is_selected = selected(x, y); + if((term.line[y][x].state & GLYPH_SET) && is_selected) { + int size = utf8size(term.line[y][x].c); + memcpy(ptr, term.line[y][x].c, size); + ptr += size; } - if(ls && y < sel.e.y) + } + + /* \n at the end of every selected line except for the last one */ + if(is_selected && y < sel.e.y) *ptr++ = '\n'; } *ptr = 0; @@ -687,8 +694,7 @@ bmotion(XEvent *e) { if(oldey != sel.ey || oldex != sel.ex) { int starty = MIN(oldey, sel.ey); int endy = MAX(oldey, sel.ey); - for(int i = starty; i <= endy; i++) - term.dirty[i] = 1; + tsetdirt(starty, endy); draw(); } } @@ -813,14 +819,24 @@ ttyresize(int x, int y) { } void -tfulldirt(void) +tsetdirt(int top, int bot) { int i; - for(i = 0; i < term.row; i++) + + LIMIT(top, 0, term.row-1); + LIMIT(bot, 0, term.row-1); + + for(i = top; i <= bot; i++) term.dirty[i] = 1; } void +tfulldirt(void) +{ + tsetdirt(0, term.row-1); +} + +void tcursor(int mode) { static TCursor c; @@ -832,12 +848,16 @@ tcursor(int mode) { void treset(void) { + unsigned i; term.c = (TCursor){{ .mode = ATTR_NULL, .fg = DefaultFG, .bg = DefaultBG }, .x = 0, .y = 0, .state = CURSOR_DEFAULT}; - + + memset(term.tabs, 0, term.col * sizeof(*term.tabs)); + for (i = TAB; i < term.col; i += TAB) + term.tabs[i] = 1; term.top = 0, term.bot = term.row - 1; term.mode = MODE_WRAP; tclearregion(0, 0, term.col-1, term.row-1); @@ -850,12 +870,14 @@ tnew(int col, int row) { term.line = malloc(term.row * sizeof(Line)); term.alt = malloc(term.row * sizeof(Line)); term.dirty = malloc(term.row * sizeof(*term.dirty)); + term.tabs = malloc(term.col * sizeof(*term.tabs)); for(row = 0; row < term.row; row++) { term.line[row] = malloc(term.col * sizeof(Glyph)); term.alt [row] = malloc(term.col * sizeof(Glyph)); term.dirty[row] = 0; } + memset(term.tabs, 0, term.col * sizeof(*term.tabs)); /* setup screen */ treset(); } @@ -1181,6 +1203,18 @@ csihandle(void) { DEFAULT(escseq.arg[0], 1); tmoveto(0, term.c.y-escseq.arg[0]); break; + case 'g': /* TBC -- Tabulation clear */ + switch (escseq.arg[0]) { + case 0: /* clear current tab stop */ + term.tabs[term.c.x] = 0; + break; + case 3: /* clear all the tabs */ + memset(term.tabs, 0, term.col * sizeof(*term.tabs)); + break; + default: + goto unknown; + } + break; case 'G': /* CHA -- Move to */ case '`': /* XXX: HPA -- same? */ DEFAULT(escseq.arg[0], 1); @@ -1192,7 +1226,6 @@ csihandle(void) { DEFAULT(escseq.arg[1], 1); tmoveto(escseq.arg[1]-1, escseq.arg[0]-1); break; - /* XXX: (CSI n I) CHT -- Cursor Forward Tabulation tab stops */ case 'J': /* ED -- Clear screen */ sel.bx = -1; switch(escseq.arg[0]) { @@ -1407,8 +1440,11 @@ csireset(void) { void tputtab(void) { - int space = TAB - term.c.x % TAB; - tmoveto(term.c.x + space, term.c.y); + unsigned x; + + for (x = term.c.x + 1; x < term.col && !term.tabs[x]; ++x) + /* nothing */ ; + tmoveto(x, term.c.y); } void @@ -1469,6 +1505,10 @@ tputc(char *c) { tnewline(1); /* always go to first col */ term.esc = 0; break; + case 'H': /* HTS -- Horizontal tab stop */ + term.tabs[term.c.x] = 1; + term.esc = 0; + break; case 'M': /* RI -- Reverse index */ if(term.c.y == term.top) tscrolldown(term.top, 1); @@ -1573,6 +1613,7 @@ tresize(int col, int row) { term.line = realloc(term.line, row * sizeof(Line)); term.alt = realloc(term.alt, row * sizeof(Line)); term.dirty = realloc(term.dirty, row * sizeof(*term.dirty)); + term.tabs = realloc(term.tabs, col * sizeof(*term.tabs)); /* resize each row to new width, zero-pad if needed */ for(i = 0; i < minrow; i++) { @@ -1591,7 +1632,15 @@ tresize(int col, int row) { term.line[i] = calloc(col, sizeof(Glyph)); term.alt [i] = calloc(col, sizeof(Glyph)); } - + if (col > term.col) { + bool *bp = term.tabs + term.col; + + memset(bp, 0, sizeof(*term.tabs) * (col - term.col)); + while (--bp > term.tabs && !*bp) + /* nothing */ ; + for (bp += TAB; bp < term.tabs + col; bp += TAB) + *bp = 1; + } /* update terminal size */ term.col = col, term.row = row; /* make use of the LIMIT in tmoveto */ @@ -1604,32 +1653,8 @@ tresize(int col, int row) { void xresize(int col, int row) { - Pixmap newbuf; - int oldw, oldh; - - oldw = xw.bufw; - oldh = xw.bufh; - xw.bufw = MAX(1, col * xw.cw); - xw.bufh = MAX(1, row * xw.ch); - newbuf = XCreatePixmap(xw.dpy, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dpy, xw.scr)); - XCopyArea(xw.dpy, xw.buf, newbuf, dc.gc, 0, 0, xw.bufw, xw.bufh, 0, 0); - XFreePixmap(xw.dpy, xw.buf); - XSetForeground(xw.dpy, dc.gc, dc.col[DefaultBG]); - if(xw.bufw > oldw) - XFillRectangle(xw.dpy, newbuf, dc.gc, oldw, 0, - xw.bufw-oldw, MIN(xw.bufh, oldh)); - else if(xw.bufw < oldw && (BORDER > 0 || xw.w > xw.bufw)) - XClearArea(xw.dpy, xw.win, BORDER+xw.bufw, BORDER, - xw.w-xw.bufh-BORDER, BORDER+MIN(xw.bufh, oldh), - False); - if(xw.bufh > oldh) - XFillRectangle(xw.dpy, newbuf, dc.gc, 0, oldh, - xw.bufw, xw.bufh-oldh); - else if(xw.bufh < oldh && (BORDER > 0 || xw.h > xw.bufh)) - XClearArea(xw.dpy, xw.win, BORDER, BORDER+xw.bufh, - xw.w-2*BORDER, xw.h-xw.bufh-BORDER, - False); - xw.buf = newbuf; + xw.w = MAX(1, 2*BORDER + col * xw.cw); + xw.h = MAX(1, 2*BORDER + row * xw.ch); } void @@ -1678,7 +1703,7 @@ void xclear(int x1, int y1, int x2, int y2) { XSetForeground(xw.dpy, dc.gc, dc.col[IS_SET(MODE_REVERSE) ? DefaultFG : DefaultBG]); XFillRectangle(xw.dpy, xw.buf, dc.gc, - x1 * xw.cw, y1 * xw.ch, + BORDER + x1 * xw.cw, BORDER + y1 * xw.ch, (x2-x1+1) * xw.cw, (y2-y1+1) * xw.ch); } @@ -1764,10 +1789,8 @@ xinit(void) { xloadcols(); /* window - default size */ - xw.bufh = term.row * xw.ch; - xw.bufw = term.col * xw.cw; - xw.h = xw.bufh + 2*BORDER; - xw.w = xw.bufw + 2*BORDER; + xw.h = 2*BORDER + term.row * xw.ch; + xw.w = 2*BORDER + term.col * xw.cw; attrs.background_pixel = dc.col[DefaultBG]; attrs.border_pixel = dc.col[DefaultBG]; @@ -1785,7 +1808,7 @@ xinit(void) { CWBackPixel | CWBorderPixel | CWBitGravity | CWEventMask | CWColormap, &attrs); - xw.buf = XCreatePixmap(xw.dpy, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dpy, xw.scr)); + xw.buf = XdbeAllocateBackBufferName(xw.dpy, xw.win, XdbeCopied); /* input methods */ @@ -1814,7 +1837,7 @@ xinit(void) { void xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) { int fg = base.fg, bg = base.bg, temp; - int winx = x*xw.cw, winy = y*xw.ch + dc.font.ascent, width = charlen*xw.cw; + int winx = BORDER+x*xw.cw, winy = BORDER+y*xw.ch + dc.font.ascent, width = charlen*xw.cw; XFontSet fontset = dc.font.set; int i; @@ -1855,10 +1878,10 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) { /* copy buffer pixmap to screen pixmap */ void -xcopy(int x, int y, int cols, int rows) { - int src_x = x*xw.cw, src_y = y*xw.ch, src_w = cols*xw.cw, src_h = rows*xw.ch; - int dst_x = BORDER+src_x, dst_y = BORDER+src_y; - XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, src_x, src_y, src_w, src_h, dst_x, dst_y); +xcopy() { + XdbeSwapInfo swpinfo[1] = {{xw.win, XdbeCopied}}; + XdbeSwapBuffers(xw.dpy, swpinfo, 1); + } void @@ -1902,6 +1925,7 @@ xdrawcursor(void) { void draw() { drawregion(0, 0, term.col, term.row); + xcopy(); gettimeofday(&xw.lastdraw, NULL); } @@ -1943,7 +1967,6 @@ drawregion(int x1, int y1, int x2, int y2) { } if(ib > 0) xdraws(buf, base, ox, y, ic, ib); - xcopy(0, y, term.col, 1); } xdrawcursor(); } @@ -1952,13 +1975,10 @@ void expose(XEvent *ev) { XExposeEvent *e = &ev->xexpose; if(xw.state & WIN_REDRAW) { - if(!e->count) { + if(!e->count) xw.state &= ~WIN_REDRAW; - xcopy(0, 0, term.col, term.row); - } - } else - XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, e->x-BORDER, e->y-BORDER, - e->width, e->height, e->x, e->y); + } + xcopy(); } void