added guiDeleteElement

2 files changed, 17 insertions, 1 deletions

diff --git a/gui.c b/gui.c
index 29a40564..a1dc3431 100644
--- a/gui.c
+++ b/gui.c
@@ -29,7 +29,7 @@ static uint16_t addNode(struct guiNode_t *newNode) {
 	return 1;
 }
 
-static void deleteNode(char *name) {
+static uint8_t deleteNode(char *name) {
 	struct guiNode_t *pointer, *pointer1;
 
 	if(firstGUI != NULL) {
@@ -53,7 +53,11 @@ static void deleteNode(char *name) {
 
 			}
 		}
+
+		return 1; // successful
 	}
+
+	return 0;	// not successful
 }
 
 void guiPrintNodes(BaseSequentialStream *chp) {
@@ -127,6 +131,10 @@ Thread *guiInit(uint16_t interval, tprio_t priority) {
 	return tp;
 }
 
+uint8_t guiDeleteElement(char *name) {
+	return deleteNode(name);
+}
+
 uint8_t guiDrawButton(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, char *str, uint16_t fontColor, uint16_t buttonColor, char *name, uint8_t *active, uint8_t *state) {
 	struct guiNode_t *newNode;
 
diff --git a/gui.h b/gui.h
index 5e08ac00..18251291 100644
--- a/gui.h
+++ b/gui.h
@@ -49,6 +49,14 @@ Thread *guiInit(uint16_t interval, tprio_t priority);
 void guiPrintNode(BaseSequentialStream *chp);
 
 /*
+ * Description: deletes a GUI element from the linked list
+ *
+ * param:		- name: name of the element (parameter of each guiDrawXXX function)
+ *
+ * return:		1 if successful, 0 otherwise
+ */
+uint8_t guiDeleteElement(char *name);
+/*
  * Description: draws a button on the screen and keeps it's state up to date
  *
  * param:		- x0, y0, x1, y1:	start and end coordinates of the button's rectangle