Remove x.c dependency on term
The xinit function only needs to the rows/cols, so pass those in rather than accessing term directly. With a bit of arithmetic, we are able to avoid the need for term.row and term.col in x2col, y2row, and xdrawglyphfontspecs as well, completing the removal. Term is now fully internal to st.c. Signed-off-by: Devin J. Pohly <djpohly@gmail.com>
This commit is contained in:
Devin J. Pohly
parent
a5dc1b4697
commit
a3beb626d2
22
st.c
22
st.c
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@ -95,6 +95,26 @@ enum escape_state {
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ESC_DCS =128,
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};
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/* Internal representation of the screen */
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typedef struct {
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int row; /* nb row */
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int col; /* nb col */
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Line *line; /* screen */
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Line *alt; /* alternate screen */
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int *dirty; /* dirtyness of lines */
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TCursor c; /* cursor */
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int ocx; /* old cursor col */
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int ocy; /* old cursor row */
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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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int esc; /* escape state flags */
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char trantbl[4]; /* charset table translation */
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int charset; /* current charset */
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int icharset; /* selected charset for sequence */
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int *tabs;
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} Term;
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/* CSI Escape sequence structs */
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/* ESC '[' [[ [<priv>] <arg> [;]] <mode> [<mode>]] */
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typedef struct {
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@ -181,11 +201,11 @@ static char *base64dec(const char *);
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static ssize_t xwrite(int, const char *, size_t);
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/* Globals */
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Term term;
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int cmdfd;
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pid_t pid;
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int oldbutton = 3; /* button event on startup: 3 = release */
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static Term term;
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static Selection sel;
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static CSIEscape csiescseq;
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static STREscape strescseq;
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21
st.h
21
st.h
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@ -76,26 +76,6 @@ typedef struct {
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char state;
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} TCursor;
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/* Internal representation of the screen */
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typedef struct {
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int row; /* nb row */
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int col; /* nb col */
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Line *line; /* screen */
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Line *alt; /* alternate screen */
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int *dirty; /* dirtyness of lines */
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TCursor c; /* cursor */
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int ocx; /* old cursor col */
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int ocy; /* old cursor row */
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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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int esc; /* escape state flags */
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char trantbl[4]; /* charset table translation */
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int charset; /* current charset */
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int icharset; /* selected charset for sequence */
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int *tabs;
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} Term;
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/* Purely graphic info */
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typedef struct {
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int tw, th; /* tty width and height */
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@ -168,7 +148,6 @@ void *xrealloc(void *, size_t);
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char *xstrdup(char *);
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/* Globals */
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extern Term term;
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extern int cmdfd;
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extern pid_t pid;
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extern int oldbutton;
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35
x.c
35
x.c
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@ -130,7 +130,7 @@ static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int);
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static void xdrawglyph(Glyph, int, int);
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static void xclear(int, int, int, int);
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static int xgeommasktogravity(int);
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static void xinit(void);
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static void xinit(int, int);
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static void cresize(int, int);
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static void xresize(int, int);
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static int xloadfont(Font *, FcPattern *);
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@ -299,18 +299,16 @@ int
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x2col(int x)
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{
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x -= borderpx;
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x /= win.cw;
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return LIMIT(x, 0, term.col-1);
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LIMIT(x, 0, win.tw - 1);
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return x / win.cw;
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}
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int
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y2row(int y)
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{
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y -= borderpx;
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y /= win.ch;
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return LIMIT(y, 0, term.row-1);
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LIMIT(y, 0, win.th - 1);
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return y / win.ch;
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}
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void
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@ -984,7 +982,7 @@ xunloadfonts(void)
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}
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void
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xinit(void)
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xinit(int cols, int rows)
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{
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XGCValues gcvalues;
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Cursor cursor;
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@ -1009,8 +1007,8 @@ xinit(void)
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xloadcols();
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/* adjust fixed window geometry */
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win.w = 2 * borderpx + term.col * win.cw;
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win.h = 2 * borderpx + term.row * win.ch;
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win.w = 2 * borderpx + cols * win.cw;
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win.h = 2 * borderpx + rows * win.ch;
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if (xw.gm & XNegative)
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xw.l += DisplayWidth(xw.dpy, xw.scr) - win.w - 2;
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if (xw.gm & YNegative)
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@ -1042,7 +1040,7 @@ xinit(void)
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XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, win.w, win.h);
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/* font spec buffer */
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xw.specbuf = xmalloc(term.col * sizeof(GlyphFontSpec));
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xw.specbuf = xmalloc(cols * sizeof(GlyphFontSpec));
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/* Xft rendering context */
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xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap);
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@ -1337,15 +1335,16 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
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/* Intelligent cleaning up of the borders. */
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if (x == 0) {
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xclear(0, (y == 0)? 0 : winy, borderpx,
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winy + win.ch + ((y >= term.row-1)? win.h : 0));
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winy + win.ch +
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((winy + win.ch >= borderpx + win.th)? win.h : 0));
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}
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if (x + charlen >= term.col) {
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if (winx + width >= borderpx + win.tw) {
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xclear(winx + width, (y == 0)? 0 : winy, win.w,
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((y >= term.row-1)? win.h : (winy + win.ch)));
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((winy + win.ch >= borderpx + win.th)? win.h : (winy + win.ch)));
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}
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if (y == 0)
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xclear(winx, 0, winx + width, borderpx);
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if (y == term.row-1)
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if (winy + win.ch >= borderpx + win.th)
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xclear(winx, winy + win.ch, winx + width, win.h);
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/* Clean up the region we want to draw to. */
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@ -1930,8 +1929,10 @@ run:
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}
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setlocale(LC_CTYPE, "");
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XSetLocaleModifiers("");
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tnew(MAX(cols, 1), MAX(rows, 1));
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xinit();
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cols = MAX(cols, 1);
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rows = MAX(rows, 1);
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tnew(cols, rows);
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xinit(cols, rows);
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xsetenv();
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selinit();
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run();
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