resize a stripboard following the current layout, fixes #3090 #2998 and

#3084. The slow performance is still present but the extended area is not shortcircuited.

src/items/perfboard.cpp

@@ -40,9 +40,9 @@ along with Fritzing.  If not, see <http://www.gnu.org/licenses/>.
 
 static const int ConnectorIDJump = 1000;
 static const int MaxXDimension = 199;
-static const int MinXDimension = 5;
+static const int MinXDimension = 3;
 static const int MaxYDimension = 199;
-static const int MinYDimension = 5;
+static const int MinYDimension = 3;
 static const int WarningSize = 2000;
 
 static const QString OneHole("M%1,%2a%3,%3 0 1 %5 %4,0 %3,%3 0 1 %5 -%4,0z\n");
@@ -279,7 +279,7 @@ bool Perfboard::canEditPart() {
 	return false;
 }
 
-void Perfboard::changeBoardSize()
+bool Perfboard::boardSizeWarning()
 {
 	if (!m_gotWarning) {
 		int x = m_xEdit->text().toInt();
@@ -303,10 +303,17 @@ void Perfboard::changeBoardSize()
 				getXY(x, y, m_size);
 				m_xEdit->setText(QString::number(x));
 				m_yEdit->setText(QString::number(y));
-				return;
+				return true;
 			}
 		}
 	}
+	return false;
+}
+
+void Perfboard::changeBoardSize()
+{
+	if (boardSizeWarning())
+		return;
 
 	QString newSize = QString("%1.%2").arg(m_xEdit->text()).arg(m_yEdit->text());
 	m_propsMap.insert("size", newSize);

src/items/perfboard.h

@@ -66,6 +66,7 @@ protected slots:
 
 protected:
 	static bool getXY(int & x, int & y, const QString & s);
+	bool boardSizeWarning();
 
 protected:
 	static bool m_gotWarning;

src/items/stripboard.cpp

@@ -858,3 +858,39 @@ QStringList Stripboard::collectValues(const QString & family, const QString & pr
 
 	return values;
 }
+
+void Stripboard::changeBoardSize()
+{
+	if (boardSizeWarning())
+		return;
+
+	QString newSize = QString("%1.%2").arg(m_xEdit->text(), m_yEdit->text());
+	m_propsMap.insert("size", newSize);
+
+	//We have to create the "buses" (strip segments that are broken) for the strip board.
+	//We do not modify the previous buses. If we extend the board, we just break the strips based on
+	//the layout (vertical or horizontal strips). These buses properties are pased to the swap mechanism,
+	//which creates a new part and sets the new properties (the buses).
+	QString buses = prop("buses");
+	QString newBuses;
+	bool vertical = m_layout.compare(VerticalString) == 0;
+	QString hv = vertical ? "h" : "v";
+	int offsetX = vertical ? 1 : 0;
+	int offsetY = vertical ? 0 : 1;
+
+	for (int i = 0; i < m_xEdit->text().toInt() - offsetX; i++) {
+		for (int j = 0; j < m_yEdit->text().toInt() - offsetY; j++) {
+			if (i < (m_x - offsetX) && j < (m_y - offsetY))
+				continue; //Do not modify previous strips
+			QString newBus = QString("%1.%2%3 ").arg(i).arg(j).arg(hv);
+			newBuses += newBus;
+		}
+	}
+
+	m_propsMap.insert("buses", buses + newBuses);
+
+	InfoGraphicsView * infoGraphicsView = InfoGraphicsView::getInfoGraphicsView(this);
+	if (infoGraphicsView) {
+		infoGraphicsView->swap(family(), "size", m_propsMap, this);
+	}
+}

src/items/stripboard.h

@@ -88,6 +88,9 @@ class Stripboard : public Perfboard
 	void swapEntry(const QString & text);
 	QStringList collectValues(const QString & family, const QString & prop, QString & value);
 
+protected slots:
+	void changeBoardSize();
+
 protected:
 	void nextBus(QList<ConnectorItem *> & soFar);
 	QString getRowLabel();

src/sketch/sketchwidget.cpp

@@ -5356,14 +5356,14 @@ void SketchWidget::prepDeleteOtherProps(ItemBase * itemBase, long id, const QStr
 		QString buses = itemBase->prop("buses");
 		QString newBuses = propsMap.value("buses");
 		if (newBuses.isEmpty()) newBuses = buses;
-		if (!buses.isEmpty()) {
+		if (!newBuses.isEmpty()) {
 			new SetPropCommand(this, id, "buses", buses, newBuses, true, parentCommand);
 		}
 
 		QString layout = itemBase->prop("layout");
 		QString newLayout = propsMap.value("layout");
 		if (newLayout.isEmpty()) newLayout = layout;
-		if (!layout.isEmpty()) {
+		if (!newLayout.isEmpty()) {
 			new SetPropCommand(this, id, "layout", layout, newLayout, true, parentCommand);
 		}
 	}