From d6e555f482e48ee5abfcb4f1a9f991af6f32a0d8 Mon Sep 17 00:00:00 2001
From: Roman Telezhynskyi <dismine@gmail.com>
Date: Sun, 27 Dec 2020 16:35:17 +0200
Subject: [PATCH] Reduce connectivity for VMainGraphicsView class.

Use a signal instead of direct read of a main window to trigger zoom fit best.
---
 src/app/valentina/mainwindow.cpp        | 1 +
 src/libs/vwidgets/vmaingraphicsview.cpp | 7 ++-----
 src/libs/vwidgets/vmaingraphicsview.h   | 1 +
 3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/src/app/valentina/mainwindow.cpp b/src/app/valentina/mainwindow.cpp
index 9677e92b3..40e8c89fd 100644
--- a/src/app/valentina/mainwindow.cpp
+++ b/src/app/valentina/mainwindow.cpp
@@ -503,6 +503,7 @@ void MainWindow::InitScenes()
 
     connect(ui->view, &VMainGraphicsView::MouseRelease, this, [this](){EndVisualization(true);});
     connect(ui->view, &VMainGraphicsView::ScaleChanged, this, &MainWindow::ScaleChanged);
+    connect(ui->view, &VMainGraphicsView::ZoomFitBestCurrent, this, [this](){ZoomFitBestCurrent();});
     QSizePolicy policy(QSizePolicy::Expanding, QSizePolicy::Expanding);
     policy.setHorizontalStretch(12);
     ui->view->setSizePolicy(policy);
diff --git a/src/libs/vwidgets/vmaingraphicsview.cpp b/src/libs/vwidgets/vmaingraphicsview.cpp
index 1e9a3c65a..480cdf400 100644
--- a/src/libs/vwidgets/vmaingraphicsview.cpp
+++ b/src/libs/vwidgets/vmaingraphicsview.cpp
@@ -55,7 +55,7 @@
 #include "vmaingraphicsscene.h"
 #include "vsimplecurve.h"
 #include "vcontrolpointspline.h"
-#include "../vmisc/vabstractvalapplication.h"
+#include "../vmisc/vabstractapplication.h"
 #include "../vmisc/vsettings.h"
 #include "vabstractmainwindow.h"
 #include "global.h"
@@ -645,10 +645,7 @@ void VMainGraphicsView::mouseDoubleClickEvent(QMouseEvent *event)
 {
     if (event->button() == Qt::LeftButton && qApp->Settings()->IsDoubleClickZoomFitBestCurrentPP())
     {
-        if (VAbstractMainWindow *window = qobject_cast<VAbstractMainWindow *>(qApp->getMainWindow()))
-        {
-            window->ZoomFitBestCurrent();
-        }
+        emit ZoomFitBestCurrent();
     }
 
     QGraphicsView::mouseDoubleClickEvent(event);
diff --git a/src/libs/vwidgets/vmaingraphicsview.h b/src/libs/vwidgets/vmaingraphicsview.h
index 09998a8ca..f6db798d2 100644
--- a/src/libs/vwidgets/vmaingraphicsview.h
+++ b/src/libs/vwidgets/vmaingraphicsview.h
@@ -149,6 +149,7 @@ signals:
     void     MouseRelease();
     void     itemClicked(QGraphicsItem *item);
     void     ScaleChanged(qreal scale);
+    void     ZoomFitBestCurrent();
 public slots:
     void     Zoom(qreal scale);
     void     ZoomIn();