Changeset 6a87f28 in mainline for uspace/lib/gfxfont/src/font.c

Timestamp:

2021-02-25T16:48:13Z (3 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

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

Children:

bac8acab

Parents:

26853ebc

Message:

First attempt at printing text in text-mode via GFX

File:

• uspace/lib/gfxfont/src/font.c (modified) (2 diffs)

uspace/lib/gfxfont/src/font.c

@@ -180 +180 @@
 }
 
+/** Create dummy font for printing text in text mode.
+ *
+ * @param tface Typeface
+ * @param rfont Place to store pointer to new font
+ *
+ * @return EOK on success, EINVAL if parameters are invald,
+ *         ENOMEM if insufficient resources, EIO if graphic device connection
+ *         was lost
+ */
+errno_t gfx_font_create_textmode(gfx_typeface_t *tface, gfx_font_t **rfont)
+{
+        gfx_font_props_t props;
+        gfx_font_metrics_t metrics;
+
+        gfx_font_props_init(&props);
+        props.size = 1;
+        props.flags = gff_text_mode;
+
+        gfx_font_metrics_init(&metrics);
+        metrics.ascent = 0;
+        metrics.descent = 0;
+        metrics.leading = 1;
+
+        return gfx_font_create(tface, &props, &metrics, rfont);
+}
+
 /** Open font.
  *
@@ -229 +255 @@
 void gfx_font_get_metrics(gfx_font_t *font, gfx_font_metrics_t *metrics)
 {
-        *metrics = font->metrics;
+        if (font != NULL) {
+                *metrics = font->metrics;
+        } else {
+                metrics->ascent = 0;
+                metrics->descent = 0;
+                metrics->leading = 1;
+        }
 }