Changeset 1400 for toiletTweet

Timestamp:

Nov 15, 2006, 12:42:11 AM (16 years ago)

Author:

Sam Hocevar

Message:

• Kerning support. We used to have:

_
\ \ / / (_) _ _ _ _ _ _ _

\ V / | | / -_) |

| \ \ / | '_ \ / _ \ | '_| / _|

\_/ |_| \_| \_,_| /_\_\ | ./ \_/ |_| \|

|_|

Now we have:

_
\ \ / /(_) _ _ _ _ _ _ _

\ V / | |/ -_)|

|\ \ / | '_ \/ _ \| '_|/ _|

\_/ |_|\_| \_,_|/_\_\ | ./\_/|_| \|

|_|

Now we just need smushing.

Location:

toilet/trunk/src

Files:

• figlet.c (modified) (7 diffs)
• toilet.h (modified) (2 diffs)

toilet/trunk/src/figlet.c

@@ -44 +44 @@
         return -1;
 
+    cx->left = malloc(cx->height * sizeof(int));
+    cx->right = malloc(cx->height * sizeof(int));
+
     cx->feed = feed_figlet;
     cx->flush = flush_figlet;
@@ -53 +56 @@
 static int feed_figlet(context_t *cx, uint32_t ch, uint32_t attr)
 {
-    unsigned int c, w, h, x, y;
+    unsigned int c, w, h, x, y, overlap, mx;
 
     switch(ch)
@@ -84 +87 @@
     }
 
+    /* Compute how much the next character will overlap */
+    overlap = w;
+    for(y = 0; y < h; y++)
+    {
+        /* Compute how much spaces we can eat from the new glyph */
+        for(x = 0; x < overlap; x++)
+            if(cucul_get_char(cx->image, x, y + c * cx->height) != ' ')
+                break;
+
+        /* Compute how much spaces we can eat from the previous glyph */
+        for(mx = 0; x + mx < overlap && mx < cx->x; mx++)
+            if(cucul_get_char(cx->cv, cx->x - 1 - mx, cx->y + y) != ' ')
+                break;
+
+        if(x + mx < overlap)
+            overlap = x + mx;
+    }
+
     /* Check whether the current canvas is large enough */
-    if(cx->x + w > cx->w)
-        cx->w = cx->x + w < cx->term_width ? cx->x + w : cx->term_width;
+    if(cx->x + w - overlap > cx->w)
+        cx->w = cx->x + w - overlap < cx->term_width
+              ? cx->x + w - overlap : cx->term_width;
 
     if(cx->y + h > cx->h)
@@ -101 +123 @@
         uint32_t tmpch = cucul_get_char(cx->image, x, y + c * cx->height);
         //uint32_t tmpat = cucul_get_attr(cx->image, x, y + c * cx->height);
+        if(tmpch == ' ')
+            continue;
         /* FIXME: this could be changed to cucul_put_attr() when the
          * function is fixed in libcucul */
         //cucul_set_attr(cx->cv, tmpat);
-        cucul_put_char(cx->cv, cx->x + x, cx->y + y, tmpch);
+        cucul_put_char(cx->cv, cx->x + x - overlap, cx->y + y, tmpch);
         //cucul_put_attr(cx->cv, cx->x + x, cx->y + y, tmpat);
     }
 
     /* Advance cursor */
-    cx->x += w;
+    cx->x += w - overlap;
 
     return 0;
@@ -116 +140 @@
 static int flush_figlet(context_t *cx)
 {
+    unsigned int x, y;
+
     cx->torender = cx->cv;
     cucul_set_canvas_size(cx->torender, cx->w, cx->h);
+
+    /* FIXME: do this somewhere else, or record hardblank positions */
+    for(y = 0; y < cx->h; y++)
+        for(x = 0; x < cx->w; x++)
+            if(cucul_get_char(cx->torender, x, y) == 0xa0)
+            {
+                uint32_t attr = cucul_get_attr(cx->torender, x, y);
+                cucul_put_char(cx->torender, x, y, ' ');
+                cucul_put_attr(cx->torender, x, y, attr);
+            }
 
     cx->x = cx->y = 0;
@@ -128 +164 @@
 static int end_figlet(context_t *cx)
 {
+    free(cx->left);
+    free(cx->right);
     cucul_free_canvas(cx->image);
     free(cx->lookup);
@@ -270 +308 @@
             ch = cucul_get_char(cx->image, i, j);
 
-            /* TODO: Replace hardblanks with U+00A0 NO-BREAK SPACE */
+            /* Replace hardblanks with U+00A0 NO-BREAK SPACE */
             if(ch == cx->hardblank)
-                cucul_put_char(cx->image, i, j, ch = ' ');
-                //cucul_put_char(cx->image, i, j, ch = 0xa0);
+                cucul_put_char(cx->image, i, j, ch = 0xa0);
 
             if(oldch && ch != oldch)

toilet/trunk/src/toilet.h

@@ -33 +33 @@
     int (*end)(struct toilet_context *);
 
-    /* Used by the big driver */
-    cucul_font_t *f;
-    cucul_canvas_t *onechar;
-    unsigned char *buf;
-
     /* Used by the FIGlet driver */
     unsigned long int hardblank;
@@ -45 +40 @@
     unsigned int glyphs;
     cucul_canvas_t *image;
+    int *left, *right; /* Unused yet */
     unsigned int *lookup;