From 4b2db9a95d35f7315b53666e22fbb97c7e4a26c1 Mon Sep 17 00:00:00 2001
From: dismine <dismine@gmail.com>
Date: Sat, 11 Jan 2014 16:09:44 +0200
Subject: [PATCH] Save and restore transformation for each scene.

--HG--
branch : develop
---
 src/mainwindow.cpp                 | 50 ++++++++++++++++++------------
 src/mainwindow.h                   |  2 ++
 src/widgets/vmaingraphicsscene.cpp | 14 +++++++--
 src/widgets/vmaingraphicsscene.h   |  3 ++
 4 files changed, 47 insertions(+), 22 deletions(-)

diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 86215350f..90224e3ad 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -87,6 +87,10 @@ MainWindow::MainWindow(QWidget *parent)
     view = new VMainGraphicsView();
     ui->LayoutView->addWidget(view);
     view->setScene(currentScene);
+
+    sceneDraw->setTransform(view->transform());
+    sceneDetails->setTransform(view->transform());
+
     connect(view, &VMainGraphicsView::NewFactor, sceneDraw, &VMainGraphicsScene::SetFactor);
     QSizePolicy policy(QSizePolicy::Expanding, QSizePolicy::Expanding);
     policy.setHorizontalStretch(12);
@@ -880,24 +884,38 @@ void MainWindow::keyPressEvent ( QKeyEvent * event )
     QMainWindow::keyPressEvent ( event );
 }
 
+void MainWindow::SaveCurrentScene()
+{
+    /*Save transform*/
+    currentScene->setTransform(view->transform());
+    /*Save scroll bars value for previous scene.*/
+    QScrollBar *horScrollBar = view->horizontalScrollBar();
+    currentScene->setHorScrollBar(horScrollBar->value());
+    QScrollBar *verScrollBar = view->verticalScrollBar();
+    currentScene->setVerScrollBar(verScrollBar->value());
+}
+
+void MainWindow::RestoreCurrentScene()
+{
+    /*Set transform for current scene*/
+    view->setTransform(currentScene->transform());
+    /*Set value for current scene scroll bar.*/
+    QScrollBar *horScrollBar = view->horizontalScrollBar();
+    horScrollBar->setValue(currentScene->getHorScrollBar());
+    QScrollBar *verScrollBar = view->verticalScrollBar();
+    verScrollBar->setValue(currentScene->getVerScrollBar());
+}
+
 void MainWindow::ActionDraw(bool checked)
 {
     if (checked)
     {
         ui->actionDetails->setChecked(false);
-        /*Save scroll bars value for previous scene.*/
-        QScrollBar *horScrollBar = view->horizontalScrollBar();
-        currentScene->setHorScrollBar(horScrollBar->value());
-        QScrollBar *verScrollBar = view->verticalScrollBar();
-        currentScene->setVerScrollBar(verScrollBar->value());
+        SaveCurrentScene();
 
         currentScene = sceneDraw;
         view->setScene(currentScene);
-        /*Set value for current scene scroll bar.*/
-        horScrollBar = view->horizontalScrollBar();
-        horScrollBar->setValue(currentScene->getHorScrollBar());
-        verScrollBar = view->verticalScrollBar();
-        verScrollBar->setValue(currentScene->getVerScrollBar());
+        RestoreCurrentScene();
 
         mode = Draw::Calculation;
         comboBoxDraws->setEnabled(true);
@@ -918,19 +936,11 @@ void MainWindow::ActionDetails(bool checked)
     if (checked)
     {
         ui->actionDraw->setChecked(false);
-        /*Save scroll bars value for previous scene.*/
-        QScrollBar *horScrollBar = view->horizontalScrollBar();
-        currentScene->setHorScrollBar(horScrollBar->value());
-        QScrollBar *verScrollBar = view->verticalScrollBar();
-        currentScene->setVerScrollBar(verScrollBar->value());
+        SaveCurrentScene();
 
         currentScene = sceneDetails;
         view->setScene(sceneDetails);
-        /*Set value for current scene scroll bar.*/
-        horScrollBar = view->horizontalScrollBar();
-        horScrollBar->setValue(currentScene->getHorScrollBar());
-        verScrollBar = view->verticalScrollBar();
-        verScrollBar->setValue(currentScene->getVerScrollBar());
+        RestoreCurrentScene();
 
         currentDrawIndex = comboBoxDraws->currentIndex();//save current pattern peace
         comboBoxDraws->setCurrentIndex(comboBoxDraws->count()-1);
diff --git a/src/mainwindow.h b/src/mainwindow.h
index 875f1097c..04f775398 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -537,6 +537,8 @@ private:
      * @param enable
      */
     void               SetEnableTool(bool enable);
+    void               SaveCurrentScene();
+    void               RestoreCurrentScene();
     /**
      *
      */
diff --git a/src/widgets/vmaingraphicsscene.cpp b/src/widgets/vmaingraphicsscene.cpp
index 95c1a41b2..9bb9d9abd 100644
--- a/src/widgets/vmaingraphicsscene.cpp
+++ b/src/widgets/vmaingraphicsscene.cpp
@@ -31,10 +31,10 @@
 #include <QtWidgets>
 
 VMainGraphicsScene::VMainGraphicsScene()
-    :QGraphicsScene(), horScrollBar(0), verScrollBar(0), scaleFactor(1){}
+    :QGraphicsScene(), horScrollBar(0), verScrollBar(0), scaleFactor(1), _transform(QTransform()){}
 
 VMainGraphicsScene::VMainGraphicsScene(const QRectF & sceneRect, QObject * parent)
-    :QGraphicsScene ( sceneRect, parent ), horScrollBar(0), verScrollBar(0), scaleFactor(1){}
+    :QGraphicsScene ( sceneRect, parent ), horScrollBar(0), verScrollBar(0), scaleFactor(1), _transform(QTransform()){}
 
 void VMainGraphicsScene::mouseMoveEvent(QGraphicsSceneMouseEvent* event)
 {
@@ -48,6 +48,16 @@ void VMainGraphicsScene::mousePressEvent(QGraphicsSceneMouseEvent *event)
     QGraphicsScene::mousePressEvent(event);
 }
 
+QTransform VMainGraphicsScene::transform() const
+{
+    return _transform;
+}
+
+void VMainGraphicsScene::setTransform(const QTransform &transform)
+{
+    _transform = transform;
+}
+
 void VMainGraphicsScene::ChoosedItem(qint64 id, const Scene::Scenes &type)
 {
     emit ChoosedObject(id, type);
diff --git a/src/widgets/vmaingraphicsscene.h b/src/widgets/vmaingraphicsscene.h
index cee01c006..c0574caf9 100644
--- a/src/widgets/vmaingraphicsscene.h
+++ b/src/widgets/vmaingraphicsscene.h
@@ -69,6 +69,8 @@ public:
      * @param value
      */
     inline void   setVerScrollBar(const qint32 &value) {verScrollBar = value;}
+    QTransform    transform() const;
+    void          setTransform(const QTransform &transform);
 public slots:
     /**
      * @brief ChoosedItem
@@ -127,6 +129,7 @@ private:
      * @brief scaleFactor
      */
     qreal         scaleFactor;
+    QTransform    _transform;
 };
 
 #endif // VMAINGRAPHICSSCENE_H