graphic fix

libs/graphic/graphic.cpp

@@ -186,6 +186,7 @@ Graphic::Graphic(QWidget * parent): QFrame(parent), canvas(0), line_x_min(this),
 	text_color = palette().color(QPalette::WindowText);
 	grid_pen   = QPen(palette().color(QPalette::Disabled, QPalette::WindowText), 0., Qt::DotLine);
 	graphics.append(GraphicType());
+	graphics.back().init();
 	curGraphic = 0;
 	selpen     = palette().color(QPalette::WindowText);
 	selpen.setStyle(Qt::DashLine);
@@ -207,6 +208,8 @@ Graphic::Graphic(QWidget * parent): QFrame(parent), canvas(0), line_x_min(this),
 
 
 Graphic::~Graphic() {
+	for (auto & g: graphics)
+		g.destroy();
 #ifdef NO_BUTTONS
 	delete buttons_menu;
 #endif
@@ -1260,6 +1263,7 @@ void Graphic::setCurrentGraphic(int arg) {
 
 void Graphic::setGraphicsCount(int count, bool update) {
 	if (count < 0) return;
+	bool changed = false;
 	while (graphics.size() < count) {
 		GraphicType gt(tr("y(x)"));
 		if (loaded_configs.size() > graphics.size())
@@ -1267,12 +1271,14 @@ void Graphic::setGraphicsCount(int count, bool update) {
 		else
 			gt.pen.setColor(QColor::fromHsv((graphics.size() * 55) % 360, 255, 255 - _G_QRAND_ % 115));
 		graphics.append(gt);
+		changed = true;
 	}
 	while (graphics.size() > count) {
-		delete graphics.back().pb;
+		graphics.back().destroy();
 		graphics.pop_back();
+		changed = true;
 	}
-	if (update) updateLegend();
+	if (update && changed) updateLegend();
 }
 
 #undef _G_QRAND_
@@ -1280,7 +1286,7 @@ void Graphic::setGraphicsCount(int count, bool update) {
 
 void Graphic::removeGraphic(int arg, bool update) {
 	if (arg < 0 || arg >= graphics.size()) return;
-	delete graphics[arg].pb;
+	graphics[arg].destroy();
 	graphics.remove(arg);
 	if (update) updateLegend();
 }
@@ -2418,24 +2424,24 @@ void Graphic::updateLegend(bool es) {
 			QLayoutItem * li = ui->layoutLegend->itemAtPosition(r, c);
 			if (!li) continue;
 			if (!li->widget()) continue;
-			while (li->widget()->actions().isEmpty())
-				li->widget()->removeAction(li->widget()->actions()[0]);
-			delete li->widget();
+			ui->layoutLegend->removeWidget(li->widget());
 		}
 	ui->layoutLegend->invalidate();
 	for (int i = 0; i < graphics.size(); i++) {
-		graphics[i].pb = new QCheckBox(graphics[i].name);
+		if (graphics[i].init()) {
+			QAction * act = new QAction(tr("Check all"), 0);
+			act->setCheckable(true);
+			act->setChecked(true);
+			graphics[i].pb->addAction(act);
+			connect(act, SIGNAL(triggered(bool)), this, SLOT(graphicAllVisibleChange(bool)));
+			connect(graphics[i].pb, SIGNAL(toggled(bool)), this, SLOT(graphicVisibleChange(bool)));
+			graphics[i].pb->setContextMenuPolicy(Qt::ActionsContextMenu);
+		}
 		graphics[i].pb->setIconSize(pix.size());
 		graphics[i].pb->setIcon(graphics[i].icon);
 		graphics[i].pb->setChecked(graphics[i].visible);
+		graphics[i].pb->setText(graphics[i].name);
 		graphics[i].pb->setProperty("graphic_num", i);
-		graphics[i].pb->setContextMenuPolicy(Qt::ActionsContextMenu);
-		QAction * act = new QAction(tr("Check all"), 0);
-		act->setCheckable(true);
-		act->setChecked(true);
-		graphics[i].pb->addAction(act);
-		connect(act, SIGNAL(triggered(bool)), this, SLOT(graphicAllVisibleChange(bool)));
-		connect(graphics[i].pb, SIGNAL(toggled(bool)), this, SLOT(graphicVisibleChange(bool)));
 		int cps = graphics[i].pb->sizeHint().width() + 4;
 		if (cps > ps) ps = cps;
 	}
@@ -2446,8 +2452,7 @@ void Graphic::updateLegend(bool es) {
 	ui->scrollLegend->hide();
 	for (int i = 0; i < graphics.size(); i++) {
 		ui->layoutLegend->addWidget(graphics[i].pb, row, col);
-		QCheckBox * check = graphics[i].pb;
-		check->show();
+		graphics[i].pb->show();
 		if (leg_sa->minimum_hei == 0) {
 			leg_sa->minimum_hei = ui->widgetLegend->sizeHint().height();
 		}

libs/graphic/graphic_conf.cpp

@@ -22,7 +22,6 @@ GraphicType::GraphicType(QString name_, QColor color, Qt::PenStyle style, double
 	name       = name_;
 	visible    = visible_;
 	pointWidth = 2.;
-	pb         = new QCheckBox(name);
 }
 
 
@@ -34,6 +33,20 @@ void GraphicType::removeData() {
 }
 
 
+bool GraphicType::init() {
+	if (pb) return false;
+	pb = new QCheckBox(name);
+	return true;
+}
+
+
+void GraphicType::destroy() {
+	if (!pb) return;
+	delete pb;
+	pb = nullptr;
+}
+
+
 // GraphicConf
 
 GraphicConf::GraphicConf(QVector<GraphicType> & graphics_, QWidget * parent): QDialog(parent), graphics(graphics_) {

libs/graphic/graphic_conf.h

@@ -40,6 +40,8 @@ struct QAD_GRAPHIC_EXPORT GraphicType {
 				double width       = 0.,
 				bool visible_      = true);
 	void removeData();
+	bool init();
+	void destroy();
 	//~GraphicType() {delete pb;}
 	QString name;
 	QPolygonF polyline;
@@ -54,7 +56,7 @@ struct QAD_GRAPHIC_EXPORT GraphicType {
 	double pointWidth;
 	double max_x;
 	double max_x_pause;
-	QCheckBox * pb;
+	QCheckBox * pb = nullptr;
 	QIcon icon;
 	bool visible;
 	QRectF cvrect;