draw: support for top margin

Signed-off-by: Julien Danjou <julien@danjou.info>

awesomerc.5.txt

@@ -55,6 +55,7 @@ List of awesome markup and their attribute:
 * margin
   - left: left margin in pixel
   - right: right margin in pixel
+  - top: top margin in pixel
 * text
   - align: text alignment
   - shadow: shadow color

common/draw.c

@@ -296,6 +296,8 @@ draw_markup_on_element(markup_parser_data_t *p, const char *elem,
               case A_TK_RIGHT:
                 data->margin.right = atoi(*values);
                 break;
+              case A_TK_TOP:
+                data->margin.top = atoi(*values);
               default:
                 break;
             }
@@ -419,7 +421,7 @@ draw_text(draw_context_t *ctx, font_t *font,
     /* + 1 is added for rounding, so that in any case of doubt we rather draw
      * the text 1px lower than too high which usually results in a better type
      * face */
-    y = area.y + (ctx->height - font->height + 1) / 2;
+    y = area.y + (ctx->height - font->height + 1) / 2 + pdata->margin.top;
 
     switch(pdata->align)
     {

common/draw.h

@@ -179,7 +179,7 @@ typedef struct
     alignment_t align;
     struct
     {
-        int left, right;
+        int left, right, top;
     } margin;
     bool has_bg_color;
     xcolor_t bg_color;