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authorAnselm R Garbe <garbeam@gmail.com>2008-03-24 13:33:32 +0000
committerAnselm R Garbe <garbeam@gmail.com>2008-03-24 13:33:32 +0000
commita6a216f28cbc49afaace269c2662382a351fda24 (patch)
tree2fc807155a2f7fc8d357e8fb3b1e80081b720b8b /dwm.c
parent2c2063bc751d2b0db815c26734f186e64f0b9c12 (diff)
downloaddwm-a6a216f28cbc49afaace269c2662382a351fda24.tar.gz
geom indicator and layout indicator is only displayed if there are several geoms/layouts
Diffstat (limited to 'dwm.c')
-rw-r--r--dwm.c22
1 files changed, 14 insertions, 8 deletions
diff --git a/dwm.c b/dwm.c
index 0e72c47..54d021f 100644
--- a/dwm.c
+++ b/dwm.c
@@ -517,9 +517,11 @@ drawbar(void) {
 	Client *c;
 
 	dc.x = 0;
-	dc.w = bgw;
-	drawtext(geom->symbol, dc.norm, False);
-	dc.x += bgw;
+	if(bgw > 0) {
+		dc.w = bgw;
+		drawtext(geom->symbol, dc.norm, False);
+		dc.x += bgw;
+	}
 	for(c = stack; c && !isvisible(c); c = c->snext);
 	for(i = 0; i < LENGTH(tags); i++) {
 		dc.w = textw(tags[i]);
@@ -533,9 +535,13 @@ drawbar(void) {
 		}
 		dc.x += dc.w;
 	}
-	dc.w = blw;
-	drawtext(lt->symbol, dc.norm, False);
-	x = dc.x + dc.w;
+	if(blw > 0) {
+		dc.w = blw;
+		drawtext(lt->symbol, dc.norm, False);
+		x = dc.x + dc.w;
+	}
+	else
+		x = dc.x;
 	dc.w = textw(stext);
 	dc.x = bw - dc.w;
 	if(dc.x < x) {
@@ -1502,12 +1508,12 @@ setup(void) {
 	lt = &layouts[0];
 
 	/* init bar */
-	for(blw = i = 0; i < LENGTH(layouts); i++) {
+	for(blw = i = 0; LENGTH(layouts) > 1 && i < LENGTH(layouts); i++) {
 		w = textw(layouts[i].symbol);
 		if(w > blw)
 			blw = w;
 	}
-	for(bgw = i = 0; i < LENGTH(geoms); i++) {
+	for(bgw = i = 0; LENGTH(geoms) > 1 && i < LENGTH(geoms); i++) {
 		w = textw(geoms[i].symbol);
 		if(w > bgw)
 			bgw = w;
.Reserved */ .highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */ .highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */ .highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */ .highlight .na { color: #336699 } /* Name.Attribute */ .highlight .nb { color: #003388 } /* Name.Builtin */ .highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */ .highlight .no { color: #003366; font-weight: bold } /* Name.Constant */ .highlight .nd { color: #555555 } /* Name.Decorator */ .highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */ .highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */ .highlight .nl { color: #336699; font-style: italic } /* Name.Label */ .highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */ .highlight .py { color: #336699; font-weight: bold } /* Name.Property */ .highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */ .highlight .nv { color: #336699 } /* Name.Variable */ .highlight .ow { color: #008800 } /* Operator.Word */ .highlight .w { color: #bbbbbb } /* Text.Whitespace */ .highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */ .highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */ .highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */ .highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */ .highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ .highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ .highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */ .highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ .highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ .highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ .highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
## compute the factorial of 5, and return the result in the exit code
#
# To run (from the subx directory):
#   $ ./subx translate apps/factorial.subx -o apps/factorial
#   $ ./subx run apps/factorial
# Expected result:
#   $ echo $?
#   120
#
# You can also run the automated test suite:
#   $ ./subx run apps/factorial test
# Expected output:
#   ........
# Every '.' indicates a passing test. Failing tests get a 'F'.

== code
#   instruction                     effective address                                                   register    displacement    immediate
# . op          subop               mod             rm32          base        index         scale       r32
# . 1-3 bytes   3 bits              2 bits          3 bits        3 bits      3 bits        2 bits      2 bits      0/1/2/4 bytes   0/1/2/4 bytes

Entry:  # run tests if necessary, compute `factorial(5)` if not
    # initialize heap
    # . Heap = new-segment(64KB)
    # . . push args
    68/push  Heap/imm32
    68/push  0x10000/imm32/64KB
    # . . call
    e8/call  new-segment/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               8/imm32           # add to ESP

    # . prolog
    89/copy                         3/mod/direct    5/rm32/EBP    .           .             .           4/r32/ESP   .               .                 # copy ESP to EBP
    # - if argc > 1 and argv[1] == "test", then return run_tests()
    # . argc > 1
    81          7/subop/compare     1/mod/*+disp8   5/rm32/EBP    .           .             .           .           0/disp8         1/imm32           # compare *EBP
    7e/jump-if-lesser-or-equal  $run-main/disp8
    # . argv[1] == "test"
    # . . push args
    68/push  "test"/imm32
    ff          6/subop/push        1/mod/*+disp8   5/rm32/EBP    .           .             .           .           8/disp8         .                 # push *(EBP+8)
    # . . call
    e8/call  kernel-string-equal?/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               8/imm32           # add to ESP
    # . check result
    3d/compare-EAX-and  1/imm32
    75/jump-if-not-equal  $run-main/disp8
    # . run-tests()
    e8/call  run-tests/disp32
    8b/copy                         0/mod/indirect  5/rm32/.disp32            .             .           0/r32/EAX   Num-test-failures/disp32          # copy *Num-test-failures to EAX
    eb/jump  $main:end/disp8  # where EAX will get copied to EBX
    # - otherwise return factorial(5)
$run-main:
    # . . push args
    68/push  5/imm32
    # . . call
    e8/call  factorial/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               4/imm32           # add to ESP
$main:end:
    # syscall(exit, EAX)
    89/copy                         3/mod/direct    3/rm32/EBX    .           .             .           0/r32/EAX   .               .                 # copy EAX to EBX
    b8/copy-to-EAX  1/imm32/exit
    cd/syscall  0x80/imm8

factorial:  # n : int -> int/EAX
    # . prolog
    55/push-EBP
    89/copy                         3/mod/direct    5/rm32/EBP    .           .             .           4/r32/ESP   .               .                 # copy ESP to EBP
    53/push-EBX
    # EAX = 1 (base case)
    b8/copy-to-EAX  1/imm32
    # if (n <= 1) return
    81          7/subop/compare     1/mod/*+disp8   5/rm32/EBP    .           .             .           .           8/disp8         1/imm32           # compare *(EBP+8)
    7e/jump-if-<=  $factorial:end/disp8
    # EBX = n-1
    8b/copy                         1/mod/*+disp8   5/rm32/EBP    .           .                         3/r32/EBX   8/disp8         .                 # copy *(EBP+8) to EBX
    81          5/subop/subtract    3/mod/direct    3/rm32/EBX    .           .             .           .           .               1/imm32           # subtract from EBX
    # EAX = factorial(n-1)
    # . . push args
    53/push-EBX
    # . . call
    e8/call  factorial/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               4/imm32           # add to ESP
    # return n * factorial(n-1)
    f7          4/subop/multiply    1/mod/*+disp8   5/rm32/EBP    .           .                                     8/disp8         .                 # multiply *(EBP+8) into EAX
    # TODO: check for overflow
$factorial:end:
    # . epilog
    5b/pop-to-EBX
    89/copy                         3/mod/direct    4/rm32/ESP    .           .             .           5/r32/EBP   .               .                 # copy EBP to ESP
    5d/pop-to-EBP
    c3/return

test-factorial:
    # factorial(5)
    # . . push args
    68/push  5/imm32
    # . . call
    e8/call  factorial/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               4/imm32           # add to ESP
    # check-ints-equal(EAX, 120, msg)
    # . . push args
    68/push  "F - test-factorial"/imm32
    68/push  0x78/imm32/expected-120
    50/push-EAX
    # . . call
    e8/call  check-ints-equal/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/ESP    .           .             .           .           .               0xc/imm32         # add to ESP
    # end
    c3/return

# . . vim:nowrap:textwidth=0