Changeset 0d1d0ea in mainline for uspace/lib/ui/src/paint.c

Timestamp:

2022-03-31T14:37:31Z (3 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

master, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

d68239a1

Parents:

7ca7215

git-author:

Jiri Svoboda <jiri@…> (2022-03-30 17:37:11)

git-committer:

Jiri Svoboda <jiri@…> (2022-03-31 14:37:31)

Message:

Routine to fill rectangle with character

Use it to simplify scrollbar rendering.

File:

• uspace/lib/ui/src/paint.c (modified) (1 diff)

uspace/lib/ui/src/paint.c

@@ -555 +555 @@
 }
 
+/** Fill rectangle with text character.
+ *
+ * @param resource UI resource
+ * @param rect Rectangle
+ * @param color Color
+ * @param gchar Character to fill with
+ * @return EOK on success or an error code
+ */
+errno_t ui_paint_text_rect(ui_resource_t *resource, gfx_rect_t *rect,
+    gfx_color_t *color, const char *gchar)
+{
+        gfx_coord2_t pos;
+        gfx_text_fmt_t fmt;
+        gfx_rect_t srect;
+        gfx_coord_t w, i;
+        char *buf;
+        size_t gcharsz;
+        errno_t rc;
+
+        gfx_rect_points_sort(rect, &srect);
+
+        gfx_text_fmt_init(&fmt);
+        fmt.font = resource->font;
+        fmt.color = color;
+        fmt.halign = gfx_halign_left;
+        fmt.valign = gfx_valign_top;
+
+        w = srect.p1.x - srect.p0.x;
+        if (w == 0)
+                return EOK;
+
+        gcharsz = str_size(gchar);
+
+        buf = malloc(w * gcharsz + 1);
+        if (buf == NULL)
+                return ENOMEM;
+
+        for (i = 0; i < w; i++)
+                str_cpy(buf + i * gcharsz, (w - i) * gcharsz + 1, gchar);
+        buf[w * gcharsz] = '\0';
+
+        pos.x = srect.p0.x;
+        for (pos.y = srect.p0.y; pos.y < srect.p1.y; pos.y++) {
+                rc = gfx_puttext(&pos, &fmt, buf);
+                if (rc != EOK)
+                        goto error;
+        }
+
+        free(buf);
+        return EOK;
+error:
+        free(buf);
+        return rc;
+}
+
 /** Initialize UI text formatting structure.
  *