From 709280e3c1510ea1e0c4780a9fe387d9d978dc8b Mon Sep 17 00:00:00 2001
From: Claveau Joshua <Joshua@qelectrotech.org>
Date: Mon, 20 Jul 2020 19:38:52 +0200
Subject: [PATCH] QetGraphicsTableItem : add dialog to inform user

When user edit the query of an existing table/s if the content to
display is bigger than the content who can be displayed by the table/s a
dialog is opened for inform user of the current situation.
---
 .../ViewItem/projectdbmodel.cpp               |  2 -
 .../ViewItem/qetgraphicstableitem.cpp         | 54 +++++++++++++++++++
 .../ViewItem/qetgraphicstableitem.h           |  1 +
 3 files changed, 55 insertions(+), 2 deletions(-)

diff --git a/sources/qetgraphicsitem/ViewItem/projectdbmodel.cpp b/sources/qetgraphicsitem/ViewItem/projectdbmodel.cpp
index fcfe08d86..7e4897f1d 100644
--- a/sources/qetgraphicsitem/ViewItem/projectdbmodel.cpp
+++ b/sources/qetgraphicsitem/ViewItem/projectdbmodel.cpp
@@ -309,8 +309,6 @@ void ProjectDBModel::dataBaseUpdated()
 	auto new_record = m_record;
 	m_record = original_record;
 	
-	//This a very special case, if this nomenclature model is added
-	//befor any element, column count return 0, so in this case we emit column inserted
 	if (new_record.size() != m_record.size())
 	{
 		emit beginResetModel();
diff --git a/sources/qetgraphicsitem/ViewItem/qetgraphicstableitem.cpp b/sources/qetgraphicsitem/ViewItem/qetgraphicstableitem.cpp
index 05c26aff0..9d76db2e6 100644
--- a/sources/qetgraphicsitem/ViewItem/qetgraphicstableitem.cpp
+++ b/sources/qetgraphicsitem/ViewItem/qetgraphicstableitem.cpp
@@ -61,6 +61,56 @@ void QetGraphicsTableItem::adjustTableToFolio(QetGraphicsTableItem *table, QMarg
 	table->setDisplayNRow(int(floor(available_height/min_row_height))); //Convert a double to int, but max_row_to_display is already rounded an integer so we assume everything is ok
 }
 
+/**
+ * @brief QetGraphicsTableItem::checkInsufficientRowsCount
+ * Check if the number of rows of @table + linked table is enough to display all
+ * content of the model, if not open a dialog to advise user what to do.
+ * @param table
+ */
+void QetGraphicsTableItem::checkInsufficientRowsCount(QetGraphicsTableItem *table)
+{
+	if (!table->diagram() || !table->model()) {
+		return;
+	}
+
+	auto first_table = table;
+	while (first_table->previousTable())
+		first_table = first_table->previousTable();
+
+	if (first_table->displayNRow() <= 0) //displayed rows is unlimited
+		return;
+
+	int count_ = first_table->displayNRow();
+	bool several_table = false;
+	while (first_table->nextTable())
+	{
+		several_table = true;
+		first_table = first_table->nextTable();
+		if (first_table->displayNRow() <= 0) { //displayed rows is unlimited
+			return;
+		} else {
+			count_ += first_table->displayNRow();
+			first_table->displayNRowOffset();
+		}
+	}
+
+	if (count_ < first_table->model()->rowCount())
+	{
+		QWidget *parent = first_table->diagram()->views().first() ? first_table->diagram()->views().first() : nullptr;
+
+		QString text;
+		if (several_table) {
+			text = tr("Les information à afficher sont supérieurs à la quantité maximal pouvant être affiché par les tableaux.\n"
+					  "Veuillez ajouter un nouveau tableau ou regler les tableaux existant afin d'afficher l'integralité des informations.");
+		} else {
+			text = tr("Les information à afficher sont supérieurs à la quantité maximal pouvant être affiché par le tableau.\n"
+					  "Veuillez ajouter un nouveau tableau ou regler le tableau existant afin d'afficher l'integralité des informations.");
+		}
+		QMessageBox::information(parent, tr("Limitation de tableau"), text);
+	}
+
+}
+
 /**
  * @brief QetGraphicsTableItem::QetGraphicsTableItem
  * Default constructor
@@ -601,6 +651,10 @@ QVariant QetGraphicsTableItem::itemChange(QGraphicsItem::GraphicsItemChange chan
 void QetGraphicsTableItem::modelReseted() {
 	dataChanged(m_model->index(0,0), m_model->index(0,0), QVector<int>());
 	setToMinimumHeight();
+
+	if (!previousTable()) { //this is the head table
+		checkInsufficientRowsCount(this);
+	}
 }
 
 /**
diff --git a/sources/qetgraphicsitem/ViewItem/qetgraphicstableitem.h b/sources/qetgraphicsitem/ViewItem/qetgraphicstableitem.h
index 9b1741ccb..90bb22215 100644
--- a/sources/qetgraphicsitem/ViewItem/qetgraphicstableitem.h
+++ b/sources/qetgraphicsitem/ViewItem/qetgraphicstableitem.h
@@ -48,6 +48,7 @@ class QetGraphicsTableItem : public QetGraphicsItem
 
 	public :
 		static void adjustTableToFolio(QetGraphicsTableItem *table, QMargins margins = QMargins(20,20,20,0));
+		static void checkInsufficientRowsCount(QetGraphicsTableItem *first_table);
 
     public:
         QetGraphicsTableItem(QGraphicsItem *parent= nullptr);