From 491d5848b4bd9a74f28a01bad8ba9b9d6fe8b0f7 Mon Sep 17 00:00:00 2001
From: Ronan Le Tiec <ronanletiec@gmail.com>
Date: Sat, 14 Nov 2020 10:55:57 +0100
Subject: [PATCH] Add mouse position functionality

---
 src/app/puzzle/vpmaingraphicsview.cpp |  6 ++++++
 src/app/puzzle/vpmaingraphicsview.h   |  8 ++++++++
 src/app/puzzle/vpmainwindow.cpp       | 24 +++++++++++++++++++++++-
 src/app/puzzle/vpmainwindow.h         | 17 +++++++++++++++--
 4 files changed, 52 insertions(+), 3 deletions(-)

diff --git a/src/app/puzzle/vpmaingraphicsview.cpp b/src/app/puzzle/vpmaingraphicsview.cpp
index a114a8ff0..1db306030 100644
--- a/src/app/puzzle/vpmaingraphicsview.cpp
+++ b/src/app/puzzle/vpmaingraphicsview.cpp
@@ -74,6 +74,12 @@ void VPMainGraphicsView::RefreshLayout()
     m_scene->update();
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+VMainGraphicsScene* VPMainGraphicsView::GetScene()
+{
+    return m_scene;
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 void VPMainGraphicsView::dragEnterEvent(QDragEnterEvent *event)
 {
diff --git a/src/app/puzzle/vpmaingraphicsview.h b/src/app/puzzle/vpmaingraphicsview.h
index 15709c520..fdea4efb6 100644
--- a/src/app/puzzle/vpmaingraphicsview.h
+++ b/src/app/puzzle/vpmaingraphicsview.h
@@ -48,6 +48,14 @@ public:
      */
     void RefreshLayout();
 
+
+    /**
+     * @brief GetScene Returns the scene of the view
+     * @return
+     */
+    VMainGraphicsScene* GetScene();
+
+
 protected:
     void dragEnterEvent(QDragEnterEvent *event) override;
     void dragMoveEvent(QDragMoveEvent *event) override;
diff --git a/src/app/puzzle/vpmainwindow.cpp b/src/app/puzzle/vpmainwindow.cpp
index 97740e8de..5633b3602 100644
--- a/src/app/puzzle/vpmainwindow.cpp
+++ b/src/app/puzzle/vpmainwindow.cpp
@@ -41,6 +41,7 @@
 #include "../vmisc/projectversion.h"
 #include "../ifc/xml/vlayoutconverter.h"
 #include "../ifc/exception/vexception.h"
+#include "../vwidgets/vmaingraphicsscene.h"
 #include "vpsheet.h"
 
 #include <QLoggingCategory>
@@ -480,11 +481,21 @@ void VPMainWindow::InitMainGraphics()
     m_graphicsView->RefreshLayout();
 
     connect(m_graphicsView, &VPMainGraphicsView::ScaleChanged, this, &VPMainWindow::on_ScaleChanged);
+    connect(m_graphicsView->GetScene(), &VMainGraphicsScene::mouseMove, this, &VPMainWindow::on_MouseMoved);
 }
 
 //---------------------------------------------------------------------------------------------------------------------
 void VPMainWindow::InitZoomToolBar()
 {
+    if (not m_doubleSpinBoxScale.isNull())
+    {
+        delete m_doubleSpinBoxScale;
+    }
+
+    if (m_mouseCoordinate != nullptr)
+    {
+        delete m_mouseCoordinate;
+    }
 
     // connect the zoom buttons and shortcuts to the slots
     QList<QKeySequence> zoomInShortcuts;
@@ -530,7 +541,6 @@ void VPMainWindow::InitZoomToolBar()
     m_mouseCoordinate = new QLabel(QString("0, 0 (%1)").arg(UnitsToStr(m_layout->GetUnit(), true)));
     ui->toolBarZoom->addWidget(m_mouseCoordinate);
     ui->toolBarZoom->addSeparator();
-
 }
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -1099,3 +1109,15 @@ void VPMainWindow::on_ScaleChanged(qreal scale)
         m_doubleSpinBoxScale->blockSignals(false);
     }
 }
+
+//---------------------------------------------------------------------------------------------------------------------
+void VPMainWindow::on_MouseMoved(const QPointF &scenePos)
+{
+    if (m_mouseCoordinate != nullptr)
+    {
+        m_mouseCoordinate->setText(QStringLiteral("%1, %2 (%3)")
+                                   .arg(static_cast<qint32>(FromPixel(scenePos.x(), m_layout->GetUnit())))
+                                   .arg(static_cast<qint32>(FromPixel(scenePos.y(), m_layout->GetUnit())))
+                                   .arg(UnitsToStr(m_layout->GetUnit(), true)));
+    }
+}
diff --git a/src/app/puzzle/vpmainwindow.h b/src/app/puzzle/vpmainwindow.h
index 5e74f3f1d..ce6d166bb 100644
--- a/src/app/puzzle/vpmainwindow.h
+++ b/src/app/puzzle/vpmainwindow.h
@@ -31,6 +31,7 @@
 #include <QMainWindow>
 #include <QMessageBox>
 #include <QDoubleSpinBox>
+#include <QPointer>
 
 #include "../vmisc/def.h"
 #include "vpcarrousel.h"
@@ -103,9 +104,16 @@ private:
     VPLayout *m_layout{nullptr};
     QList<VPPiece *>m_selectedPieces{QList<VPPiece *>()};
 
-    QLabel* m_mouseCoordinate{nullptr};
+    /**
+     * @brief spin box with the scale factor of the graphic view
+     */
     QPointer<QDoubleSpinBox> m_doubleSpinBoxScale{nullptr};
 
+    /**
+     * @brief mouseCoordinate pointer to label who show mouse coordinate.
+     */
+    QLabel* m_mouseCoordinate{nullptr};
+
     /**
      * @brief CreatePiece creates a piece from the given VLayoutPiece data
      * @param rawPiece the raw piece data
@@ -399,10 +407,15 @@ private slots:
     void on_PieceRotationChanged();
 
     /**
-     * @brief on_ScaleChanged
+     * @brief on_ScaleChanged When the scale of the graphic view is changed
      */
     void on_ScaleChanged(qreal scale);
 
+    /**
+     * @brief mouseMove save mouse position and show user.
+     * @param scenePos position mouse.
+     */
+    void on_MouseMoved(const QPointF &scenePos);
 };
 
 #endif // VPMAINWINDOW_H