From a7338085ec52a5cdb297823886468f7b8bf4b8cb Mon Sep 17 00:00:00 2001
From: manison <manison@users.noreply.github.com>
Date: Thu, 28 Feb 2019 09:07:07 +0100
Subject: [PATCH 1/4] mbox: introduce lv_mbox_get_btnm API

---
 lv_objx/lv_mbox.c | 12 ++++++++++++
 lv_objx/lv_mbox.h |  8 ++++++++
 2 files changed, 20 insertions(+)

diff --git a/lv_objx/lv_mbox.c b/lv_objx/lv_mbox.c
index adaf4ad42..4fcdb5fc3 100644
--- a/lv_objx/lv_mbox.c
+++ b/lv_objx/lv_mbox.c
@@ -390,6 +390,18 @@ bool lv_mbox_get_recolor(const lv_obj_t * mbox)
 	return lv_btnm_get_recolor(ext->btnm);
 }
 
+/**
+ * Get message box button matrix
+ * @param mbox pointer to a message box object
+ * @return pointer to button matrix object
+ * @remarks return value will be NULL unless `lv_mbox_add_btns` has been already called
+ */
+lv_obj_t * lv_mbox_get_btnm(lv_obj_t * mbox)
+{
+    lv_mbox_ext_t * ext = lv_obj_get_ext_attr(mbox);
+    return ext->btnm;
+}
+
 
 /**********************
  *   STATIC FUNCTIONS
diff --git a/lv_objx/lv_mbox.h b/lv_objx/lv_mbox.h
index 9a25a76e3..2aa182b34 100644
--- a/lv_objx/lv_mbox.h
+++ b/lv_objx/lv_mbox.h
@@ -189,6 +189,14 @@ lv_style_t * lv_mbox_get_style(const lv_obj_t *mbox, lv_mbox_style_t type);
  */
 bool lv_mbox_get_recolor(const lv_obj_t * mbox);
 
+/**
+ * Get message box button matrix
+ * @param mbox pointer to a message box object
+ * @return pointer to button matrix object
+ * @remarks return value will be NULL unless `lv_mbox_add_btns` has been already called
+ */
+lv_obj_t * lv_mbox_get_btnm(lv_obj_t * mbox);
+
 /**********************
  *      MACROS
  **********************/

From 4a54b6e4faefc358abaf2471e586388767b4a95c Mon Sep 17 00:00:00 2001
From: manison <manison@users.noreply.github.com>
Date: Thu, 28 Feb 2019 09:08:53 +0100
Subject: [PATCH 2/4] fix argument documentation

---
 lv_objx/lv_mbox.c | 2 +-
 lv_objx/lv_mbox.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lv_objx/lv_mbox.c b/lv_objx/lv_mbox.c
index 4fcdb5fc3..9948714b2 100644
--- a/lv_objx/lv_mbox.c
+++ b/lv_objx/lv_mbox.c
@@ -377,7 +377,7 @@ lv_style_t * lv_mbox_get_style(const lv_obj_t * mbox, lv_mbox_style_t type)
 
 /**
  * Get whether recoloring is enabled
- * @param btnm pointer to button matrix object
+ * @param mbox pointer to a message box object
  * @return whether recoloring is enabled
  */
 bool lv_mbox_get_recolor(const lv_obj_t * mbox)
diff --git a/lv_objx/lv_mbox.h b/lv_objx/lv_mbox.h
index 2aa182b34..0526fae88 100644
--- a/lv_objx/lv_mbox.h
+++ b/lv_objx/lv_mbox.h
@@ -184,7 +184,7 @@ lv_style_t * lv_mbox_get_style(const lv_obj_t *mbox, lv_mbox_style_t type);
 
 /**
  * Get whether recoloring is enabled
- * @param btnm pointer to button matrix object
+ * @param mbox pointer to a message box object
  * @return whether recoloring is enabled
  */
 bool lv_mbox_get_recolor(const lv_obj_t * mbox);

From 4e9df1679e10eb167e8e95914678e4c2758075b5 Mon Sep 17 00:00:00 2001
From: manison <manison@users.noreply.github.com>
Date: Thu, 28 Feb 2019 09:09:58 +0100
Subject: [PATCH 3/4] fix formatting

---
 lv_objx/lv_mbox.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/lv_objx/lv_mbox.c b/lv_objx/lv_mbox.c
index 9948714b2..06f636d5e 100644
--- a/lv_objx/lv_mbox.c
+++ b/lv_objx/lv_mbox.c
@@ -382,12 +382,12 @@ lv_style_t * lv_mbox_get_style(const lv_obj_t * mbox, lv_mbox_style_t type)
  */
 bool lv_mbox_get_recolor(const lv_obj_t * mbox)
 {
-	lv_mbox_ext_t * ext = lv_obj_get_ext_attr(mbox);
+    lv_mbox_ext_t * ext = lv_obj_get_ext_attr(mbox);
 
-	if(!ext->btnm)
-		return false;
+    if(!ext->btnm)
+        return false;
 
-	return lv_btnm_get_recolor(ext->btnm);
+    return lv_btnm_get_recolor(ext->btnm);
 }
 
 /**

From 513a7e0a4e77052e220f1cdf312233c3463876b9 Mon Sep 17 00:00:00 2001
From: manison <manison@users.noreply.github.com>
Date: Thu, 28 Feb 2019 09:27:25 +0100
Subject: [PATCH 4/4] btnm: introduce lv_btnm_set_pressed API

---
 lv_objx/lv_btnm.c | 19 +++++++++++++++++++
 lv_objx/lv_btnm.h |  7 +++++++
 2 files changed, 26 insertions(+)

diff --git a/lv_objx/lv_btnm.c b/lv_objx/lv_btnm.c
index 78a8f5a04..1b750d909 100644
--- a/lv_objx/lv_btnm.c
+++ b/lv_objx/lv_btnm.c
@@ -303,6 +303,25 @@ void lv_btnm_set_action(lv_obj_t * btnm, lv_btnm_action_t action)
     ext->action = action;
 }
 
+/**
+ * Set the pressed button
+ * @param btnm pointer to button matrix object
+ * @param id index of the currently pressed button (`LV_BTNM_PR_NONE` to unpress)
+ */
+void lv_btnm_set_pressed(const lv_obj_t * btnm, uint16_t id)
+{
+    lv_btnm_ext_t * ext = lv_obj_get_ext_attr(btnm);
+
+    if (id >= ext->btn_cnt && id != LV_BTNM_PR_NONE)
+        return;
+
+    if (id == ext->btn_id_pr)
+        return;
+
+    ext->btn_id_pr = id;
+    lv_obj_invalidate(btnm);
+}
+
 /**
  * Enable or disable button toggling
  * @param btnm pointer to button matrix object
diff --git a/lv_objx/lv_btnm.h b/lv_objx/lv_btnm.h
index 36f3241d5..7eef895a5 100644
--- a/lv_objx/lv_btnm.h
+++ b/lv_objx/lv_btnm.h
@@ -141,6 +141,13 @@ void lv_btnm_set_ctrl_map(const lv_obj_t * btnm, const lv_btnm_ctrl_t * ctrl_map
  */
 void lv_btnm_set_action(lv_obj_t * btnm, lv_btnm_action_t action);
 
+/**
+ * Set the pressed button
+ * @param btnm pointer to button matrix object
+ * @param id index of the currently pressed button (`LV_BTNM_PR_NONE` to unpress)
+ */
+void lv_btnm_set_pressed(const lv_obj_t * btnm, uint16_t id);
+
 /**
  * Enable or disable button toggling
  * @param btnm pointer to button matrix object