[PATCH 29/52] expo: Support setting the size and bounds of an object

[Simon Glass]

Add a function to allow the size of an object to be set independently
of its position.

Also add a function to permit the object's bounding box to be set
independently of its dimensions.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 boot/scene.c     | 29 +++++++++++++++++++++++++++++
 include/expo.h   | 24 ++++++++++++++++++++++++
 test/boot/expo.c | 11 +++++++++++
 3 files changed, 64 insertions(+)

diff --git a/boot/scene.c b/boot/scene.c
index 6142d2b736d..dd48589f378 100644
--- a/boot/scene.c
+++ b/boot/scene.c
@@ -236,6 +236,35 @@ int scene_obj_set_size(struct scene *scn, uint id, int w, int h)
 	return 0;
 }
 
+int scene_obj_set_width(struct scene *scn, uint id, int w)
+{
+	struct scene_obj *obj;
+
+	obj = scene_obj_find(scn, id, SCENEOBJT_NONE);
+	if (!obj)
+		return log_msg_ret("find", -ENOENT);
+	obj->bbox.x1 = obj->bbox.x0 + w;
+
+	return 0;
+}
+
+int scene_obj_set_bbox(struct scene *scn, uint id, int x0, int y0, int x1,
+		       int y1)
+{
+	struct scene_obj *obj;
+
+	obj = scene_obj_find(scn, id, SCENEOBJT_NONE);
+	if (!obj)
+		return log_msg_ret("find", -ENOENT);
+	obj->bbox.x0 = x0;
+	obj->bbox.y0 = y0;
+	obj->bbox.x1 = x1;
+	obj->bbox.y1 = y1;
+	obj->flags |= SCENEOF_SIZE_VALID;
+
+	return 0;
+}
+
 int scene_obj_set_hide(struct scene *scn, uint id, bool hide)
 {
 	int ret;
diff --git a/include/expo.h b/include/expo.h
index 6f0547a4b38..990cb3094ee 100644
--- a/include/expo.h
+++ b/include/expo.h
@@ -673,6 +673,30 @@ int scene_obj_set_pos(struct scene *scn, uint id, int x, int y);
  */
 int scene_obj_set_size(struct scene *scn, uint id, int w, int h);
 
+/**
+ * scene_obj_set_width() - Set the width of an object
+ *
+ * @scn: Scene to update
+ * @id: ID of object to update
+ * @w: width in pixels
+ * Returns: 0 if OK, -ENOENT if @id is invalid
+ */
+int scene_obj_set_width(struct scene *scn, uint id, int w);
+
+/**
+ * scene_obj_set_bbox() - Set the bounding box of an object
+ *
+ * @scn: Scene to update
+ * @id: ID of object to update
+ * @x0: x position, in pixels from left side
+ * @y0: y position, in pixels from top
+ * @x1: ending x position (right side)
+ * @y1: ending y position (botton side)
+ * Returns: 0 if OK, -ENOENT if @id is invalid
+ */
+int scene_obj_set_bbox(struct scene *scn, uint id, int x0, int y0, int x1,
+		       int y1);
+
 /**
  * scene_obj_set_hide() - Set whether an object is hidden
  *
diff --git a/test/boot/expo.c b/test/boot/expo.c
index 94c13e9b71f..2a430d3d482 100644
--- a/test/boot/expo.c
+++ b/test/boot/expo.c
@@ -584,6 +584,17 @@ static int expo_render_image(struct unit_test_state *uts)
 	ut_asserteq(50 + 160, obj->bbox.x1);
 	ut_asserteq(400 + 160, obj->bbox.y1);
 
+	scene_obj_set_width(scn, OBJ_MENU, 170);
+	ut_asserteq(50 + 170, obj->bbox.x1);
+	scene_obj_set_bbox(scn, OBJ_MENU, 60, 410, 50 + 160, 400 + 160);
+	ut_asserteq(60, obj->bbox.x0);
+	ut_asserteq(410, obj->bbox.y0);
+	ut_asserteq(50 + 160, obj->bbox.x1);
+	ut_asserteq(400 + 160, obj->bbox.y1);
+
+	/* reset back to normal */
+	scene_obj_set_bbox(scn, OBJ_MENU, 50, 400, 50 + 160, 400 + 160);
+
 	/* render it */
 	expo_set_scene_id(exp, SCENE1);
 	ut_assertok(expo_render(exp));
-- 
2.43.0