bold attribute is back.
visibility of the cursor is not saved/loaded anymore. scrolling up/down is fixed. added RI and RIS sequences. fixed cursor drawing bug.
This commit is contained in:
Aurélien Aptel
parent
7cdaf130b1
commit
0f4dd5035e
2 changed files with 126 additions and 50 deletions
3
config.h
3
config.h
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@ -1,7 +1,8 @@
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#define SHELL "/bin/bash"
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#define TAB 8
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#define FONT "fixed"
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#define FONT "6x13"
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#define BOLDFONT FONT"bold"
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#define BORDER 3
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#define LINESPACE 0 /* additional pixel between each line */
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165
st.c
165
st.c
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@ -57,7 +57,6 @@ typedef Glyph* Line;
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typedef struct {
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Glyph attr; /* current char attributes */
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char hidden;
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int x;
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int y;
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} TCursor;
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@ -79,6 +78,7 @@ typedef struct {
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int col; /* nb col */
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Line* line; /* screen */
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TCursor c; /* cursor */
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char hidec;
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int top; /* top scroll limit */
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int bot; /* bottom scroll limit */
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int mode; /* terminal mode flags */
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@ -109,6 +109,7 @@ typedef struct {
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typedef struct {
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unsigned long col[LEN(colorname)];
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XFontStruct* font;
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XFontStruct* bfont;
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GC gc;
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} DC;
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@ -135,8 +136,11 @@ static void tnew(int, int);
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static void tnewline(void);
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static void tputc(char);
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static void tputs(char*, int);
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static void treset(void);
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static void tresize(int, int);
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static void tscroll(void);
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static void tscrollup(int);
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static void tscrolldown(int);
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static void tsetattr(int*, int);
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static void tsetchar(char);
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static void tsetscroll(int, int);
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@ -149,7 +153,6 @@ static void ttywrite(const char *, size_t);
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static unsigned long xgetcol(const char *);
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static void xclear(int, int, int, int);
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static void xcursor(int);
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static void xdrawc(int, int, Glyph);
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static void xinit(void);
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static void xscroll(void);
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@ -312,6 +315,18 @@ tcursor(int mode) {
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term.c = c, tmoveto(c.x, c.y);
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}
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void
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treset(void) {
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term.c.attr.mode = ATTR_NULL;
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term.c.attr.fg = DefaultFG;
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term.c.attr.bg = DefaultBG;
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term.c.x = term.c.y = 0;
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term.hidec = 0;
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term.top = 0, term.bot = term.row - 1;
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term.mode = MODE_WRAP;
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tclearregion(0, 0, term.col-1, term.row-1);
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}
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void
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tnew(int col, int row) { /* screen size */
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term.row = row, term.col = col;
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@ -323,17 +338,19 @@ tnew(int col, int row) { /* screen size */
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term.c.attr.fg = DefaultFG;
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term.c.attr.bg = DefaultBG;
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term.c.x = term.c.y = 0;
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term.c.hidden = 0;
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term.hidec = 0;
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/* allocate screen */
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term.line = calloc(term.row, sizeof(Line));
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for(row = 0 ; row < term.row; row++)
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term.line[row] = calloc(term.col, sizeof(Glyph));
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}
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/* TODO: Replace with scrollup/scolldown */
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void
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tscroll(void) {
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Line temp = term.line[term.top];
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int i;
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/* No dirty flag to set because of xscroll */
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/* X stuff _before_ the line swapping (results in wrong line index) */
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xscroll();
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for(i = term.top; i < term.bot; i++)
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@ -342,6 +359,41 @@ tscroll(void) {
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term.line[term.bot] = temp;
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}
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void
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tscrolldown (int n) {
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int i;
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Line temp;
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/* TODO: set dirty flag or scroll with some X func */
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LIMIT(n, 0, term.bot-term.top+1);
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for(i = 0; i < n; i++)
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memset(term.line[term.bot-i], 0, term.col*sizeof(Glyph));
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for(i = term.bot; i >= term.top+n; i--) {
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temp = term.line[i];
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term.line[i] = term.line[i-n];
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term.line[i-n] = temp;
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}
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}
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void
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tscrollup (int n) {
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int i;
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Line temp;
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LIMIT(n, 0, term.bot-term.top+1);
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/* TODO: set dirty flag or scroll with some X func */
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for(i = 0; i < n; i++)
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memset(term.line[term.top+i], 0, term.col*sizeof(Glyph));
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for(i = term.top; i <= term.bot-n; i++) {
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temp = term.line[i];
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term.line[i] = term.line[i+n];
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term.line[i+n] = temp;
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}
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}
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void
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tnewline(void) {
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int y = term.c.y + 1;
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@ -420,17 +472,20 @@ tsetchar(char c) {
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void
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tclearregion(int x1, int y1, int x2, int y2) {
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int x, y;
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int y, temp;
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if(x1 > x2)
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temp = x1, x1 = x2, x2 = temp;
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if(y1 > y2)
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temp = y1, y1 = y2, y2 = temp;
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LIMIT(x1, 0, term.col-1);
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LIMIT(x2, 0, term.col-1);
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LIMIT(y1, 0, term.row-1);
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LIMIT(y2, 0, term.row-1);
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/* XXX: could be optimized */
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for(x = x1; x <= x2; x++)
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for(y = y1; y <= y2; y++)
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memset(&term.line[y][x], 0, sizeof(Glyph));
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memset(&term.line[y][x1], 0, sizeof(Glyph)*(x2-x1+1));
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xclear(x1, y1, x2, y2);
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}
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@ -542,9 +597,6 @@ tsetattr(int *attr, int l) {
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case 7:
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term.c.attr.mode |= ATTR_REVERSE;
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break;
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case 8:
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term.c.hidden = CURSOR_HIDE;
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break;
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case 22:
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term.c.attr.mode &= ~ATTR_BOLD;
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break;
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@ -565,6 +617,8 @@ tsetattr(int *attr, int l) {
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term.c.attr.fg = attr[i] - 30;
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else if(BETWEEN(attr[i], 40, 47))
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term.c.attr.bg = attr[i] - 40;
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else
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fprintf(stderr, "erresc: gfx attr %d unkown\n", attr[i]);
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break;
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}
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}
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@ -590,7 +644,7 @@ csihandle(void) {
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switch(escseq.mode) {
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default:
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unknown:
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printf("erresc: unknown sequence -- ");
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printf("erresc: unknown csi ");
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csidump();
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/* die(""); */
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break;
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@ -665,7 +719,14 @@ csihandle(void) {
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break;
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}
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break;
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case 'S': /* XXX: SU -- Scroll <n> line up (faked) */
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case 'S': /* SU -- Scroll <n> line up */
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DEFAULT(escseq.arg[0], 1);
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tscrollup(escseq.arg[0]);
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break;
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case 'T': /* SD -- Scroll <n> line down */
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DEFAULT(escseq.arg[0], 1);
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tscrolldown(escseq.arg[0]);
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break;
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case 'L': /* IL -- Insert <n> blank lines */
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DEFAULT(escseq.arg[0], 1);
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tinsertblankline(escseq.arg[0]);
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@ -682,7 +743,7 @@ csihandle(void) {
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case 12: /* att610 -- Stop blinking cursor (IGNORED) */
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break;
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case 25:
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term.c.hidden = 1;
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term.hidec = 1;
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break;
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case 1048: /* XXX: no alt. screen to erase/save */
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case 1049:
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@ -731,7 +792,7 @@ csihandle(void) {
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case 12: /* att610 -- Start blinking cursor (IGNORED) */
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break;
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case 25:
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term.c.hidden = 0;
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term.hidec = 0;
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break;
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case 1048:
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case 1049: /* XXX: no alt. screen to erase/save */
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@ -866,11 +927,15 @@ tputc(char c) {
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break;
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case 'M': /* RI -- Reverse index */
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if(term.c.y == term.top)
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tinsertblankline(1);
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tscrolldown(1);
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else
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tmoveto(term.c.x, term.c.y-1);
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term.esc = 0;
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break;
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case 'c': /* RIS -- Reset to inital state */
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treset();
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term.esc = 0;
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break;
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case '=': /* DECPAM */
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term.mode |= MODE_APPKEYPAD;
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term.esc = 0;
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@ -888,7 +953,7 @@ tputc(char c) {
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term.esc = 0;
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break;
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default:
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fprintf(stderr, "erresc: unknown sequence ESC %02X '%c'\n", c, isprint(c)?c:'.');
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fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n", c, isprint(c)?c:'.');
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term.esc = 0;
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}
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}
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@ -991,8 +1056,6 @@ xscroll(void) {
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void
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xinit(void) {
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XGCValues values;
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unsigned long valuemask;
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XClassHint chint;
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XWMHints wmhint;
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XSizeHints shint;
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@ -1005,9 +1068,10 @@ xinit(void) {
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die("Can't open display\n");
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/* font */
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if(!(dc.font = XLoadQueryFont(xw.dis, FONT)))
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die("Can't load font %s\n", FONT);
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if(!(dc.font = XLoadQueryFont(xw.dis, FONT)) || !(dc.bfont = XLoadQueryFont(xw.dis, BOLDFONT)))
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die("Can't load font %s\n", dc.font ? BOLDFONT : FONT);
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/* XXX: Assuming same size for bold font */
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xw.cw = dc.font->max_bounds.rbearing - dc.font->min_bounds.lbearing;
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xw.ch = dc.font->ascent + dc.font->descent + LINESPACE;
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@ -1027,10 +1091,7 @@ xinit(void) {
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dc.col[DefaultBG],
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dc.col[DefaultBG]);
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/* gc */
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values.foreground = XWhitePixel(xw.dis, xw.scr);
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values.font = dc.font->fid;
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valuemask = GCForeground | GCFont;
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dc.gc = XCreateGC(xw.dis, xw.win, valuemask, &values);
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dc.gc = XCreateGC(xw.dis, xw.win, 0, NULL);
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XMapWindow(xw.dis, xw.win);
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/* wm stuff */
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chint.res_name = TNAME, chint.res_class = TNAME;
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@ -1061,28 +1122,13 @@ xdraws(char *s, Glyph base, int x, int y, int len) {
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for(i = 0; i < len; i++)
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s[i] = gfx[s[i]];
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XSetFont(xw.dis, dc.gc, base.mode & ATTR_BOLD ? dc.bfont->fid : dc.font->fid);
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XDrawImageString(xw.dis, xw.win, dc.gc, winx, winy, s, len);
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if(base.mode & ATTR_UNDERLINE)
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XDrawLine(xw.dis, xw.win, dc.gc, winx, winy+1, winx+width-1, winy+1);
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}
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void
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xdrawc(int x, int y, Glyph g) {
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XRectangle r = { x * xw.cw, y * xw.ch, xw.cw, xw.ch };
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unsigned long xfg, xbg;
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/* reverse video */
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if(g.mode & ATTR_REVERSE)
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xfg = dc.col[g.bg], xbg = dc.col[g.fg];
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else
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xfg = dc.col[g.fg], xbg = dc.col[g.bg];
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/* background */
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XSetBackground(xw.dis, dc.gc, xbg);
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XSetForeground(xw.dis, dc.gc, xfg);
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XDrawImageString(xw.dis, xw.win, dc.gc, r.x, r.y+dc.font->ascent, &g.c, 1);
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}
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void
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xcursor(int mode) {
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static int oldx = 0;
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@ -1094,24 +1140,54 @@ xcursor(int mode) {
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if(term.line[term.c.y][term.c.x].state & GLYPH_SET)
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g.c = term.line[term.c.y][term.c.x].c;
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/* remove the old cursor */
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if(term.line[oldy][oldx].state & GLYPH_SET)
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xdrawc(oldx, oldy, term.line[oldy][oldx]);
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xdraws(&term.line[oldy][oldx].c, term.line[oldy][oldx], oldx, oldy, 1);
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else
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xclear(oldx, oldy, oldx, oldy);
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/* draw the new one */
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if(mode == CURSOR_DRAW) {
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xdrawc(term.c.x, term.c.y, g);
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xdraws(&g.c, g, term.c.x, term.c.y, 1);
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oldx = term.c.x, oldy = term.c.y;
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}
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}
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#ifdef DEBUG
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/* basic drawing routines */
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void
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xdrawc(int x, int y, Glyph g) {
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XRectangle r = { x * xw.cw, y * xw.ch, xw.cw, xw.ch };
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XSetBackground(xw.dis, dc.gc, dc.col[g.bg]);
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XSetForeground(xw.dis, dc.gc, dc.col[g.fg]);
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XSetFont(xw.dis, dc.gc, g.mode & ATTR_BOLD ? dc.bfont->fid : dc.font->fid);
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XDrawImageString(xw.dis, xw.win, dc.gc, r.x, r.y+dc.font->ascent, &g.c, 1);
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}
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void
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draw_(int dummy) {
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int x, y;
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xclear(0, 0, term.col-1, term.row-1);
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for(y = 0; y < term.row; y++)
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for(x = 0; x < term.col; x++)
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if(term.line[y][x].state & GLYPH_SET)
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xdrawc(x, y, term.line[y][x]);
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if(!term.hidec)
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xcursor(CURSOR_DRAW);
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}
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#endif
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void
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draw(int redraw_all) {
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int i, x, y, ox;
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Glyph base, new;
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char buf[DRAW_BUF_SIZ];
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/* XXX: optimize with GLYPH_DIRTY hint */
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for(y = 0; y < term.row; y++) {
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base = term.line[y][0];
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i = ox = 0;
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@ -1129,8 +1205,7 @@ draw(int redraw_all) {
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}
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xdraws(buf, base, ox, y, i);
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}
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if(!term.c.hidden)
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xcursor(CURSOR_DRAW);
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xcursor(term.hidec ? CURSOR_HIDE : CURSOR_DRAW);
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}
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void
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@ -1179,7 +1254,7 @@ kpress(XEvent *ev) {
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break;
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case XK_Insert:
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if(shift)
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/* XXX: paste X clipboard */;
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draw(1), puts("draw!")/* XXX: paste X clipboard */;
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break;
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default:
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fprintf(stderr, "errkey: %d\n", (int)ksym);
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