draw: remove margin markup, move to textbox widget

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

awesomerc.5.txt

@@ -49,10 +49,6 @@ List of *awesome* markup elements and their attributes:
   - image: path to a background image
   - align: background image alignment
   - resize: resize background image to text size
-* margin
-  - left: left margin in pixel
-  - right: right margin in pixel
-  - top: top margin in pixel
 * text
   - shadow: shadow color
   - shadow_offset: shadow color offset in pixel

common/tokenize.gperf

@@ -43,6 +43,7 @@ len
 line
 Lock
 machine
+margin
 maximized_horizontal
 maximized_vertical
 middle

draw.c

@@ -217,22 +217,6 @@ draw_markup_on_element(markup_parser_data_t *p, const char *elem,
                 break;
             }
         break;
-      case 'm': /* margin */
-        for (; *names; names++, values++)
-            switch(a_tokenize(*names, -1))
-            {
-              case A_TK_LEFT:
-                data->margin.left = atoi(*values);
-                break;
-              case A_TK_RIGHT:
-                data->margin.right = atoi(*values);
-                break;
-              case A_TK_TOP:
-                data->margin.top = atoi(*values);
-              default:
-                break;
-            }
-        break;
     }
 
     for(i = 0; i <= reqs_nbr; i++)
@@ -246,7 +230,7 @@ static bool
 draw_text_markup_expand(draw_parser_data_t *data,
                         const char *str, ssize_t slen)
 {
-    static char const * const elements[] = { "bg", "bg_margin", "text", "margin", NULL };
+    static char const * const elements[] = { "bg", "bg_margin", "text", NULL };
     markup_parser_data_t p =
     {
         .elements   = elements,
@@ -312,6 +296,7 @@ draw_context_init(draw_context_t *d, int phys_screen,
  * \param elip Ellipsize mode.
  * \param wrap Wrap mode.
  * \param align Text alignment.
+ * \param margin Margin to respect when drawing text.
  * \param area Area to draw to.
  * \param text Text to draw.
  * \param len Text to draw length.
@@ -320,7 +305,7 @@ draw_context_init(draw_context_t *d, int phys_screen,
  */
 void
 draw_text(draw_context_t *ctx, font_t *font, PangoEllipsizeMode ellip, PangoWrapMode wrap,
-          alignment_t align, area_t area, const char *text, ssize_t len,
+          alignment_t align, padding_t *margin, area_t area, const char *text, ssize_t len,
           draw_parser_data_t *pdata, area_t *ext)
 {
     int x, y;
@@ -369,19 +354,19 @@ draw_text(draw_context_t *ctx, font_t *font, PangoEllipsizeMode ellip, PangoWrap
     pango_layout_set_text(ctx->layout, pdata->text, pdata->len);
     pango_layout_set_width(ctx->layout,
                            pango_units_from_double(area.width
-                                                   - (pdata->margin.left
-                                                      + pdata->margin.right)));
-    pango_layout_set_height(ctx->layout, pango_units_from_double(area.height) - pdata->margin.top);
+                                                   - (margin->left
+                                                      + margin->right)));
+    pango_layout_set_height(ctx->layout, pango_units_from_double(area.height) - margin->top);
     pango_layout_set_ellipsize(ctx->layout, ellip);
     pango_layout_set_wrap(ctx->layout, wrap);
     pango_layout_set_attributes(ctx->layout, pdata->attr_list);
     pango_layout_set_font_description(ctx->layout, font->desc);
 
-    x = area.x + pdata->margin.left;
+    x = area.x + margin->left;
     /* + 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 - ext->height + 1) / 2 + pdata->margin.top;
+    y = area.y + (ctx->height - ext->height + 1) / 2 + margin->top;
 
     /* only honors alignment if enough space */
     if(ext->width < area.width)

draw.h

@@ -161,7 +161,6 @@ typedef struct
     PangoAttrList *attr_list;
     char *text;
     ssize_t len;
-    padding_t margin;
     struct
     {
         int top, left;
@@ -178,7 +177,7 @@ typedef struct
     } shadow;
 } draw_parser_data_t;
 
-void draw_text(draw_context_t *, font_t *, PangoEllipsizeMode, PangoWrapMode, alignment_t, area_t, const char *, ssize_t len, draw_parser_data_t *, area_t *);
+void draw_text(draw_context_t *, font_t *, PangoEllipsizeMode, PangoWrapMode, alignment_t, padding_t *, area_t, const char *, ssize_t len, draw_parser_data_t *, area_t *);
 void draw_rectangle(draw_context_t *, area_t, float, bool, const xcolor_t *);
 void draw_rectangle_gradient(draw_context_t *, area_t, float, bool, vector_t,
                              const xcolor_t *, const xcolor_t *, const xcolor_t *);

lib/awful/widget.lua.in

@@ -194,6 +194,7 @@ local function tasklist_update(w, buttons, label, data)
         for i = len * 2 + 1, #clients * 2, 2 do
             w[i] = capi.widget({ type = "imagebox", align = "flex" })
             w[i + 1] = capi.widget({ type = "textbox", align = "flex" })
+            w[i + 1]:margin({ left = 2, right = 2 })
         end
     -- Remove widgets
     elseif len > #clients then
@@ -276,7 +277,7 @@ local function widget_tasklist_label_common(c, args)
     local floating_icon_align = args.floating_icon_align or theme.tasklist_floating_icon_align or "right"
     local font = args.font or theme.tasklist_font or theme.font or ""
     local bg = nil
-    local text = "<margin left=\"2\" right=\"2\"/><span font_desc='"..font.."'>"
+    local text = "<span font_desc='"..font.."'>"
     local name
     if client.floating.get(c) and floating_icon then
         text = text.."<bg image=\"" .. floating_icon .. "\" align=\"" .. floating_icon_align .. "\"/>"

lib/naughty.lua.in

@@ -308,7 +308,8 @@ function notify(args)
     local textbox = widget({ type = "textbox", align = "flex" })
     textbox:buttons({ button({ }, 1, run),
                       button({ }, 3, die) })
-    textbox.text = string.format('<margin right="'..config.margin..'" left="'..config.margin..'"/><span font_desc="%s"><b>%s</b>%s</span>', font, title, text)
+    textbox:margin({ right = config.margin, left = config.margin })
+    textbox.text = string.format('<span font_desc="%s"><b>%s</b>%s</span>', font, title, text)
     if hover_timeout then textbox.mouse_enter = hover_destroy end
 
     -- create iconbox

widgets/textbox.c

@@ -47,6 +47,8 @@ typedef struct
     } border;
     /** Text alignment */
     alignment_t align;
+    /** Margin */
+    padding_t margin;
 } textbox_data_t;
 
 static area_t
@@ -88,7 +90,7 @@ textbox_draw(widget_t *widget, draw_context_t *ctx, area_t geometry,
     if(d->border.width > 0)
         draw_rectangle(ctx, geometry, d->border.width, false, &d->border.color);
 
-    draw_text(ctx, globalconf.font, d->ellip, d->wrap, d->align,
+    draw_text(ctx, globalconf.font, d->ellip, d->wrap, d->align, &d->margin,
               geometry, d->text, d->len, &d->pdata, &d->extents);
 }
 
@@ -104,6 +106,21 @@ textbox_destructor(widget_t *w)
     p_delete(&d);
 }
 
+static int
+luaA_textbox_margin(lua_State *L)
+{
+    widget_t **widget = luaA_checkudata(L, 1, "widget");
+    textbox_data_t *d = (*widget)->data;
+
+    if(lua_gettop(L) == 2)
+    {
+        d->margin = luaA_getopt_padding(L, 3, &d->margin);
+        widget_invalidate_bywidget(*widget);
+    }
+
+    return luaA_pushpadding(L, &d->margin);
+}
+
 /** Textbox widget.
  * \param L The Lua VM state.
  * \param token The key token.
@@ -116,6 +133,7 @@ textbox_destructor(widget_t *w)
  * \lfield border_width The border width to draw around.
  * \lfield border_color The border color.
  * \lfield align Text alignment, left, center or right.
+ * \lfield margin Method to pass text margin: a table with top, left, right and bottom keys.
  */
 static int
 luaA_textbox_index(lua_State *L, awesome_token_t token)
@@ -125,6 +143,9 @@ luaA_textbox_index(lua_State *L, awesome_token_t token)
 
     switch(token)
     {
+      case A_TK_MARGIN:
+        lua_pushcfunction(L, luaA_textbox_margin);
+        return 1;
       case A_TK_ALIGN:
         lua_pushstring(L, draw_align_tostr(d->align));
         return 1;