Changeset 901b302 in mainline for uspace/app/gfxdemo/gfxdemo.c

Timestamp:

2022-11-18T19:45:24Z (17 months ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

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

Children:

f2d4a46

Parents:

a130983

Message:

Add text abbreviation screen to GFX Demo

File:

• uspace/app/gfxdemo/gfxdemo.c (modified) (3 diffs)

uspace/app/gfxdemo/gfxdemo.c

@@ -244 +244 @@
 
                 pos.x = w / 2;
-                pos.y = h - 1;
+                pos.y = h;
                 rc = gfx_puttext(&pos, &fmt, text);
                 if (rc != EOK) {
@@ -801 +801 @@
 }
 
+/** Run text abbreviation demo on a graphic context.
+ *
+ * @param gc Graphic context
+ * @param w Width
+ * @param h Height
+ */
+static errno_t demo_text_abbr(gfx_context_t *gc, gfx_coord_t w, gfx_coord_t h)
+{
+        gfx_color_t *color = NULL;
+        gfx_rect_t rect;
+        gfx_coord2_t pos;
+        gfx_text_fmt_t fmt;
+        int i;
+        errno_t rc;
+
+        if (quit)
+                return EOK;
+
+        rc = demo_begin(gc, w, h, "Text abbreviation");
+        if (rc != EOK)
+                goto error;
+
+        for (i = 0; i < 11; i++) {
+
+                rc = gfx_color_new_rgb_i16(0, 0, 0x8000, &color);
+                if (rc != EOK)
+                        goto error;
+
+                rc = gfx_set_color(gc, color);
+                if (rc != EOK)
+                        goto error;
+
+                rect.p0.x = w / 20;
+                rect.p0.y = (2 + 2 * i) * h / 25;
+                rect.p1.x = w - w / 20 - w * i / 12;
+                rect.p1.y = (3 + 2 * i) * h / 25;
+
+                rc = gfx_fill_rect(gc, &rect);
+                if (rc != EOK)
+                        goto error;
+
+                gfx_color_delete(color);
+
+                if (demo_is_text(w, h)) {
+                        rc = gfx_color_new_ega(0x1f, &color);
+                        if (rc != EOK)
+                                goto error;
+                } else {
+                        rc = gfx_color_new_rgb_i16(0xffff, 0xffff, 0xffff,
+                            &color);
+                        if (rc != EOK)
+                                goto error;
+                }
+
+                gfx_text_fmt_init(&fmt);
+                fmt.font = font;
+                fmt.color = color;
+                fmt.abbreviate = true;
+                fmt.width = rect.p1.x - rect.p0.x;
+
+                pos.x = rect.p0.x;
+                pos.y = rect.p0.y;
+                rc = gfx_puttext(&pos, &fmt,
+                    "The quick brow fox jumps over the lazy dog!");
+                if (rc != EOK) {
+                        printf("Error rendering text.\n");
+                        goto error;
+                }
+        }
+
+        for (i = 0; i < 10; i++) {
+                fibril_usleep(500 * 1000);
+                if (quit)
+                        break;
+        }
+
+        return EOK;
+error:
+        return rc;
+}
+
 /** Run clipping demo on a graphic context.
  *
@@ -933 +1014 @@
 
                 rc = demo_text(gc, w, h);
+                if (rc != EOK)
+                        goto error;
+
+                rc = demo_text_abbr(gc, w, h);
                 if (rc != EOK)
                         goto error;