st

fork of suckless's simple terminal
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commit 2f5ebe0a4d71aea0bb3aa0e500765a402e4a96f4
parent 476f93794acc36ea69dfd33551e311863c8afc9a
Author: Aurélien Aptel <aurelien.aptel@gmail.com>
Date:   Wed,  2 Jun 2010 16:01:30 +0200

rearranged code, resize fixed.

Diffstat:
Mst.c | 106+++++++++++++++++++++++++++++++++++++++++++------------------------------------
1 file changed, 58 insertions(+), 48 deletions(-)
diff --git a/st.c b/st.c
@@ -56,7 +56,7 @@ typedef struct {
 typedef Glyph* Line;
 
 typedef struct {
-    Glyph attr;  /* current char attributes */
+    Glyph attr;     /* current char attributes */
     int x;
     int y;
 } TCursor;
@@ -65,24 +65,24 @@ typedef struct {
 /* ESC '[' [[ [<priv>] <arg> [;]] <mode>] */
 typedef struct {
     char buf[ESC_BUF_SIZ]; /* raw string */
-    int len;               /* raw string length */
+    int len;               /* raw string length */
     char priv;
     int arg[ESC_ARG_SIZ];
-    int narg;              /* nb of args */
+    int narg;               /* nb of args */
     char mode;
 } CSIEscape;
 
 /* Internal representation of the screen */
 typedef struct {
-    int row;    /* nb row */  
-    int col;    /* nb col */
+    int row;    /* nb row */  
+    int col;    /* nb col */
     Line* line; /* screen */
-    TCursor c;  /* cursor */
+    TCursor c;    /* cursor */
     char hidec;
-    int top;    /* top    scroll limit */
-    int bot;    /* bottom scroll limit */
-    int mode;   /* terminal mode flags */
-    int esc;    /* escape state flags */
+    int top;    /* top      scroll limit */
+    int bot;    /* bottom scroll limit */
+    int mode;    /* terminal mode flags */
+    int esc;    /* escape state flags */
     char title[ESC_TITLE_SIZ];
     int titlelen;
 } Term;
@@ -93,8 +93,10 @@ typedef struct {
     Window win;
     Pixmap buf;
     int scr;
-    int w;  /* window width  */
-    int h;  /* window height */
+    int w;    /* window width     */
+    int h;    /* window height */
+    int bufw; /* pixmap width  */
+    int bufh; /* pixmap height */
     int ch; /* char height */
     int cw; /* char width  */
 } XWindow; 
@@ -216,7 +218,7 @@ execsh(void) {
 
 void
 xbell(void) { /* visual bell */
-    XRectangle r = { BORDER, BORDER, xw.w, xw.h };
+    XRectangle r = { BORDER, BORDER, xw.bufw, xw.bufh };
     XSetForeground(xw.dis, dc.gc, dc.col[BellCol]);
     XFillRectangles(xw.dis, xw.win, dc.gc, &r, 1);
     /* usleep(30000); */
@@ -367,7 +369,7 @@ tscrolldown (int n) {
 
     for(i = 0; i < n; i++)
         memset(term.line[term.bot-i], 0, term.col*sizeof(Glyph));
-       
+    
     for(i = term.bot; i >= term.top+n; i--) {
         temp = term.line[i];
         term.line[i] = term.line[i-n];
@@ -582,7 +584,7 @@ tsetattr(int *attr, int l) {
             term.c.attr.mode |= ATTR_REVERSE;    
             break;
         case 22: 
-            term.c.attr.mode &= ~ATTR_BOLD;  
+            term.c.attr.mode &= ~ATTR_BOLD;     
             break;
         case 24: 
             term.c.attr.mode &= ~ATTR_UNDERLINE;
@@ -665,7 +667,7 @@ csihandle(void) {
     case 'G': /* CHA -- Move to <col> */
     case '`': /* XXX: HPA -- same? */
         DEFAULT(escseq.arg[0], 1);
-         tmoveto(escseq.arg[0]-1, term.c.y);
+        tmoveto(escseq.arg[0]-1, term.c.y);
         break;
     case 'H': /* CUP -- Move to <row> <col> */
     case 'f': /* XXX: HVP -- same? */
@@ -1027,11 +1029,22 @@ xclear(int x1, int y1, int x2, int y2) {
 }
 
 void
+xhints(void)
+{
+    XClassHint chint = {TNAME, TNAME};
+    XWMHints wmhint     = {.flags = InputHint, .input = 1};
+    XSizeHints shint = { 
+        .flags = PSize | PResizeInc,
+        .height = xw.h, /* XXX: doesn't seem to work, see run() */
+        .width = xw.w,
+        .height_inc = xw.ch,
+        .width_inc = xw.cw,
+    };
+    XSetWMProperties(xw.dis, xw.win, NULL, NULL, NULL, 0, &shint, &wmhint, &chint);
+}
+
+void
 xinit(void) {
-    XClassHint chint;
-    XWMHints wmhint;
-    XSizeHints shint;
-    char *args[] = {NULL};
     int i;
 
     xw.dis = XOpenDisplay(NULL);
@@ -1055,27 +1068,21 @@ xinit(void) {
     term.c.attr.bg = DefaultBG;
     term.c.attr.mode = ATTR_NULL;
     /* windows */
-    xw.h = term.row * xw.ch;
-    xw.w = term.col * xw.cw;
+    xw.h = term.row * xw.ch + 2*BORDER;
+    xw.w = term.col * xw.cw + 2*BORDER;
     xw.win = XCreateSimpleWindow(xw.dis, XRootWindow(xw.dis, xw.scr), 0, 0,
-            xw.w + 2*BORDER, xw.h + 2*BORDER, 0, 
+            xw.w, xw.h, 0, 
             dc.col[DefaultBG],
             dc.col[DefaultBG]);
-    xw.buf = XCreatePixmap(xw.dis, xw.win, xw.w, xw.h, XDefaultDepth(xw.dis, xw.scr));
+    xw.bufw = xw.w - 2*BORDER;
+    xw.bufh = xw.h - 2*BORDER;
+    xw.buf = XCreatePixmap(xw.dis, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dis, xw.scr));
     /* gc */
     dc.gc = XCreateGC(xw.dis, xw.win, 0, NULL);
     XMapWindow(xw.dis, xw.win);
-    /* wm stuff */
-    chint.res_name = TNAME, chint.res_class = TNAME;
-    wmhint.input = 1, wmhint.flags = InputHint;
-    shint.height_inc = xw.ch, shint.width_inc = xw.cw;
-    shint.height = xw.h + 2*BORDER, shint.width = xw.w + 2*BORDER;
-    shint.flags = PSize | PResizeInc;
-    XSetWMProperties(xw.dis, xw.win, NULL, NULL, &args[0], 0, &shint, &wmhint, &chint);
+    xhints();
     XStoreName(xw.dis, xw.win, TNAME);
-    XFillRectangle(xw.dis, xw.buf, dc.gc, 0, 0, xw.w, xw.h);
     XSync(xw.dis, 0);
-
 }
 
 void
@@ -1152,7 +1159,7 @@ draw_(int dummy) {
 
     if(!term.hidec)
         xcursor(CURSOR_DRAW);
-    XCopyArea(xw.dis, xw.buf, xw.win, dc.gc, 0, 0, xw.w, xw.h, BORDER, BORDER);
+    XCopyArea(xw.dis, xw.buf, xw.win, dc.gc, 0, 0, xw.bufw, xw.bufh, BORDER, BORDER);
     XFlush(xw.dis);
 }
 #endif
@@ -1181,7 +1188,7 @@ draw(int redraw_all) {
         xdraws(buf, base, ox, y, i);
     }
     xcursor(term.hidec ? CURSOR_HIDE : CURSOR_DRAW);
-    XCopyArea(xw.dis, xw.buf, xw.win, dc.gc, 0, 0, xw.w, xw.h, BORDER, BORDER);
+    XCopyArea(xw.dis, xw.buf, xw.win, dc.gc, 0, 0, xw.bufw, xw.bufh, BORDER, BORDER);
     XFlush(xw.dis);
 }
 
@@ -1209,7 +1216,7 @@ kpress(XEvent *ev) {
     int meta;
     int shift;
 
-    meta  = e->state & Mod1Mask;
+    meta = e->state & Mod1Mask;
     shift = e->state & ShiftMask;
     len = XLookupString(e, buf, sizeof(buf), &ksym, NULL);
 
@@ -1242,18 +1249,21 @@ kpress(XEvent *ev) {
 void
 resize(XEvent *e) {
     int col, row;
-    col = e->xconfigure.width / xw.cw;
-    row = e->xconfigure.height / xw.ch;
     
-    if(term.col != col || term.row != row) {
-        tresize(col, row);
-        ttyresize(col, row);
-        xw.w = e->xconfigure.width;
-        xw.h = e->xconfigure.height;
-        XFreePixmap(xw.dis, xw.buf);
-        xw.buf = XCreatePixmap(xw.dis, xw.win, xw.w, xw.h, XDefaultDepth(xw.dis, xw.scr));
-        draw(SCREEN_REDRAW);
-    }
+    if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h)
+        return;
+    
+    xw.w = e->xconfigure.width;
+    xw.h = e->xconfigure.height;
+    xw.bufw = xw.w - 2*BORDER;
+    xw.bufh = xw.h - 2*BORDER;
+    col = xw.bufw / xw.cw;
+    row = xw.bufh / xw.ch;
+    tresize(col, row);
+    ttyresize(col, row);
+    XFreePixmap(xw.dis, xw.buf);
+    xw.buf = XCreatePixmap(xw.dis, xw.win, xw.bufw, xw.bufh, XDefaultDepth(xw.dis, xw.scr));
+    draw(SCREEN_REDRAW);
 }
 
 void
@@ -1264,7 +1274,7 @@ run(void) {
 
     running = 1;
     XSelectInput(xw.dis, xw.win, ExposureMask | KeyPressMask | StructureNotifyMask);
-    XResizeWindow(xw.dis, xw.win, xw.w+2*BORDER, xw.h+2*BORDER); /* fix resize bug in wmii (?) */
+    XResizeWindow(xw.dis, xw.win, xw.w, xw.h); /* XXX: fix resize bug in wmii (?) */
 
     while(running) {
         FD_ZERO(&rfd);