From eb976ad0cf689bdaaead088f18e75b8bd66bb1aa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=89milie=20Feral?= <emilie.feral@numworks.com>
Date: Tue, 3 Jan 2017 15:30:45 +0100
Subject: [PATCH] [apps/graph/values] Enable to delete row by row

Change-Id: I25b14091711af3d7afd64413839a2664fc98a051
---
 apps/graph/values/interval.cpp          | 8 ++++++++
 apps/graph/values/interval.h            | 1 +
 apps/graph/values/values_controller.cpp | 7 ++++++-
 3 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/apps/graph/values/interval.cpp b/apps/graph/values/interval.cpp
index c1804fb93..6cc588b29 100644
--- a/apps/graph/values/interval.cpp
+++ b/apps/graph/values/interval.cpp
@@ -16,6 +16,14 @@ int Interval::numberOfElements() {
   return m_numberOfElements;
 }
 
+void Interval::deleteElementAtIndex(int index) {
+  m_numberOfElements--;
+  for (int k = index; k < m_numberOfElements; k++) {
+    m_intervalBuffer[k] = m_intervalBuffer[k+1];
+  }
+  m_intervalBuffer[m_numberOfElements] = 0.0f;
+}
+
 float Interval::element(int i) {
   assert(i >= 0 && i < numberOfElements());
   computeElements();
diff --git a/apps/graph/values/interval.h b/apps/graph/values/interval.h
index 34455c069..69476714a 100644
--- a/apps/graph/values/interval.h
+++ b/apps/graph/values/interval.h
@@ -9,6 +9,7 @@ public:
   // Delete the implicit copy constructor: the object is heavy
   Interval(const Interval&) = delete;
   int numberOfElements();
+  void deleteElementAtIndex(int index);
   float element(int i);
   float start();
   float end();
diff --git a/apps/graph/values/values_controller.cpp b/apps/graph/values/values_controller.cpp
index ff03d4ad7..4ae13f643 100644
--- a/apps/graph/values/values_controller.cpp
+++ b/apps/graph/values/values_controller.cpp
@@ -56,7 +56,12 @@ bool ValuesController::handleEvent(Ion::Events::Event event) {
     headerViewController()->setSelectedButton(0);
     return true;
   }
-
+  if (event == Ion::Events::Clear && activeRow() > 0 &&
+      (activeRow() < numberOfRows()-1 || m_interval.numberOfElements() == Interval::k_maxNumberOfElements)) {
+    m_interval.deleteElementAtIndex(m_selectableTableView.selectedRow()-1);
+    m_selectableTableView.reloadData();
+    return true;
+  }
   if (event == Ion::Events::OK) {
     if (activeRow() == -1) {
       return headerViewController()->handleEvent(event);