[w3m-dev 03898] Re: table rendering

* table.c (check_relative_width): added
	(set_table_matrix): use check_relative_width
From: Akinori Ito <aito@fw.ipsj.or.jp>

ChangeLog

@@ -1,3 +1,9 @@
+2003-05-14  Akinori Ito <aito@fw.ipsj.or.jp>
+
+	* [w3m-dev 03898] Re: table rendering
+	* table.c (check_relative_width): added
+		(set_table_matrix): use check_relative_width
+
 2003-05-13  Hironori SAKAMOTO <hsaka@mth.biglobe.ne.jp>
 
 	* [w3m-dev 03896] html_quote in textarea in frame
@@ -7809,4 +7815,4 @@ a	* [w3m-dev 03276] compile error on EWS4800
 	* release-0-2-1
 	* import w3m-0.2.1
 
-$Id: ChangeLog,v 1.835 2003/05/12 16:33:16 ukai Exp $
+$Id: ChangeLog,v 1.836 2003/05/13 17:08:19 ukai Exp $

table.c

@@ -1,4 +1,4 @@
-/* $Id: table.c,v 1.40 2003/02/20 15:39:22 ukai Exp $ */
+/* $Id: table.c,v 1.41 2003/05/13 17:08:20 ukai Exp $ */
 /* 
  * HTML table
  */
@@ -3490,6 +3490,81 @@ set_table_matrix0(struct table *t, int maxwidth)
     }
 }
 
+void
+check_relative_width(struct table *t,int maxwidth)
+{
+    int i;
+    double rel_total = 0;
+    int size = t->maxcol+1;
+    double *rcolwidth = New_N(double,size);
+    struct table_cell *cell = &t->cell;
+    int n_leftcol = 0;
+
+    for (i = 0; i < size; i++)
+	rcolwidth[i] = 0;
+
+    for (i = 0; i < size; i++) {
+	if (t->fixed_width[i] < 0)
+	    rcolwidth[i] = -(double)t->fixed_width[i]/100.0;
+	else if (t->fixed_width[i] > 0)
+	    rcolwidth[i] = (double)t->fixed_width[i]/maxwidth;
+	else
+	    n_leftcol++;
+    }
+    for (i = 0; i <= cell->maxcell; i++) {
+	if (cell->fixed_width[i] < 0) {
+	    double w = -(double)cell->fixed_width[i]/100.0;
+	    double r;
+	    int j,k;
+	    int n_leftcell = 0;
+	    k = cell->col[i];
+	    r = 0.0;
+	    for (j = 1; j < cell->colspan[i]; j++) {
+		if (rcolwidth[j+k] > 0)
+		    r += rcolwidth[j+k];
+		else
+		    n_leftcell++;
+	    }
+	    if (w < r || (w == r && n_leftcell > 0)) {
+		cell->fixed_width[i] = -100*r;
+	    }
+	    else {
+		for (j = 1; j < cell->colspan[i]; j++) {
+		    if (rcolwidth[j+k] == 0)
+			 rcolwidth[j+k] = (w-r)/n_leftcell;
+		}
+	    }
+	}
+	else if (cell->fixed_width[i] > 0) {
+	    /* todo */
+	}
+    }
+    /* sanity check */
+    for (i = 0; i < size; i++)
+	rel_total += rcolwidth[i];
+
+    if ((n_leftcol == 0 && rel_total < 0.9) || 1.1 < rel_total) {
+	for (i = 0; i < size; i++) {
+	    rcolwidth[i] /= rel_total;
+	}
+	for (i = 0; i < size; i++) {
+	    if (t->fixed_width[i] < 0)
+		t->fixed_width[i] = -rcolwidth[i]*100;
+	}
+	for (i = 0; i <= cell->maxcell; i++) {
+	    if (cell->fixed_width[i] < 0) {
+		double r;
+		int j,k;
+		k = cell->col[i];
+		r = 0.0;
+		for (j = 1; j < cell->colspan[i]; j++)
+		    r += rcolwidth[j+k];
+		cell->fixed_width[i] = -r*100;
+	    }
+	}
+    }
+}
+
 void
 set_table_matrix(struct table *t, int width)
 {
@@ -3510,6 +3585,8 @@ set_table_matrix(struct table *t, int width)
 	v_set_val(t->vector, i, 0.);
     }
 
+    check_relative_width(t,width);
+
     for (i = 0; i < size; i++) {
 	if (t->fixed_width[i] > 0) {
 	    a = max(t->fixed_width[i], t->minimum_width[i]);