From a5aa8996da95d44709b80226ce812e9e26b3a7f6 Mon Sep 17 00:00:00 2001
From: Anatoly Mihalchenko <tolik@scand.com>
Date: Thu, 5 Apr 2012 17:19:42 +0300
Subject: [PATCH] SANKORE-80 Objects rotation

---
 src/core/UBSettings.cpp                |  3 +++
 src/core/UBSettings.h                  |  5 +++--
 src/domain/UBGraphicsDelegateFrame.cpp | 31 +++++++++++++++++++++++---
 src/domain/UBGraphicsDelegateFrame.h   |  7 +++++-
 src/domain/domain.pri                  |  6 +++--
 5 files changed, 44 insertions(+), 8 deletions(-)

diff --git a/src/core/UBSettings.cpp b/src/core/UBSettings.cpp
index afd08aa9..8e689a61 100644
--- a/src/core/UBSettings.cpp
+++ b/src/core/UBSettings.cpp
@@ -377,6 +377,8 @@ void UBSettings::init()
 
 	KeyboardLocale = new UBSetting(this, "Board", "StartupKeyboardLocale", 0);
     swapControlAndDisplayScreens = new UBSetting(this, "App", "SwapControlAndDisplayScreens", false);
+
+    angleTolerance = new UBSetting(this, "App", "AngleTolerance", 4);
 }
 
 
@@ -1139,3 +1141,4 @@ QString UBSettings::replaceWildcard(QString& path)
 
     return result;
 }
+
diff --git a/src/core/UBSettings.h b/src/core/UBSettings.h
index 4e8c9666..d9d4d80d 100644
--- a/src/core/UBSettings.h
+++ b/src/core/UBSettings.h
@@ -97,8 +97,7 @@ class UBSettings : public QObject
         void setCommunityPassword(const QString& password);
 
         void init();
-
-
+        
         //user directories
         static QString userDataDirectory();
         static QString userDocumentDirectory();
@@ -326,6 +325,8 @@ class UBSettings : public QObject
         UBSetting* KeyboardLocale;
         UBSetting* swapControlAndDisplayScreens;
 
+        UBSetting* angleTolerance;
+
     public slots:
 
         void setPenWidthIndex(int index);
diff --git a/src/domain/UBGraphicsDelegateFrame.cpp b/src/domain/UBGraphicsDelegateFrame.cpp
index ea90a676..8968d498 100644
--- a/src/domain/UBGraphicsDelegateFrame.cpp
+++ b/src/domain/UBGraphicsDelegateFrame.cpp
@@ -29,8 +29,6 @@
 
 #include "core/memcheck.h"
 
-qreal const UBGraphicsDelegateFrame::mAngleTolerance = 6;
-
 UBGraphicsDelegateFrame::UBGraphicsDelegateFrame(UBGraphicsItemDelegate* pDelegate, QRectF pRect, qreal pFrameWidth, bool respectRatio)
     : QGraphicsRectItem(), QObject(pDelegate)
     , mCurrentTool(None)
@@ -51,6 +49,8 @@ UBGraphicsDelegateFrame::UBGraphicsDelegateFrame(UBGraphicsItemDelegate* pDelega
     , mMirrorX(false)
     , mMirrorY(false)
 {
+    mAngleTolerance = UBSettings::settings()->angleTolerance->get().toReal();
+
     setFlag(QGraphicsItem::ItemSendsGeometryChanges, true);
 
     setAcceptedMouseButtons(Qt::LeftButton);
@@ -90,11 +90,14 @@ UBGraphicsDelegateFrame::UBGraphicsDelegateFrame(UBGraphicsItemDelegate* pDelega
     positionHandles();
 
     this->setAcceptHoverEvents(true);
+
+    angleWidget = new UBAngleWidget();
 }
 
 
 UBGraphicsDelegateFrame::~UBGraphicsDelegateFrame()
 {
+delete angleWidget;
     // NOOP
 }
 
@@ -372,7 +375,9 @@ void UBGraphicsDelegateFrame::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
         QLineF startLine(sceneBoundingRect().center(), event->lastScenePos());
             QLineF currentLine(sceneBoundingRect().center(), event->scenePos());
         mAngle += startLine.angleTo(currentLine);
-                if ((int)mAngle % 45 >= 45 - mAngleTolerance || (int)mAngle % 45 <= mAngleTolerance)
+
+        if ((int)mAngle % 45 >= 45 - mAngleTolerance 
+             || (int)mAngle % 45 <= mAngleTolerance)
         {
             mAngle = qRound(mAngle / 45) * 45;
             mAngleOffset += startLine.angleTo(currentLine);
@@ -382,6 +387,23 @@ void UBGraphicsDelegateFrame::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
                 mAngleOffset = 0;
             }
         }
+        else if ((int)mAngle % 30 >= 30 - mAngleTolerance
+                  || (int)mAngle % 30 <= mAngleTolerance)
+        {
+            mAngle = qRound(mAngle / 30) * 30;
+            mAngleOffset += startLine.angleTo(currentLine);
+            if ((int)mAngleOffset % 360 > mAngleTolerance && (int)mAngleOffset % 360 < 360 - mAngleTolerance)
+            {
+                mAngle += mAngleOffset;
+                mAngleOffset = 0;
+            }
+        }
+
+        if (!angleWidget->isVisible())
+            angleWidget->show();
+
+        angleWidget->setText(QString::number((int)mAngle % 360));
+        angleWidget->update();
 
     }
     else if (moving())
@@ -451,6 +473,9 @@ QTransform UBGraphicsDelegateFrame::buildTransform()
 
 void UBGraphicsDelegateFrame::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
 {
+    if (angleWidget->isVisible())
+        angleWidget->hide();
+
     updateResizeCursors();
 
     mDelegate->commitUndoStep();
diff --git a/src/domain/UBGraphicsDelegateFrame.h b/src/domain/UBGraphicsDelegateFrame.h
index 2cd1e0d1..11d451f1 100644
--- a/src/domain/UBGraphicsDelegateFrame.h
+++ b/src/domain/UBGraphicsDelegateFrame.h
@@ -18,6 +18,7 @@
 
 #include <QtGui>
 #include "core/UB.h"
+#include "domain/UBAngleWidget.h"
 
 class QGraphicsSceneMouseEvent;
 class UBGraphicsItemDelegate;
@@ -91,7 +92,8 @@ class UBGraphicsDelegateFrame: public QGraphicsRectItem, public QObject
         qreal mTranslateY;
         qreal mTotalTranslateX;
         qreal mTotalTranslateY;
-        static const qreal mAngleTolerance;
+        qreal mAngleTolerance;
+        QRect mAngleRect;
 
         QPointF mStartingPoint;
         QTransform mInitialTransform;
@@ -117,5 +119,8 @@ class UBGraphicsDelegateFrame: public QGraphicsRectItem, public QObject
         bool mResizing;
         bool mMirroredXAtStart;
         bool mMirroredYAtStart;
+
+        UBAngleWidget *angleWidget;
+
 };
 #endif /* UBGRAPHICSDELEGATEFRAME_H_ */
diff --git a/src/domain/domain.pri b/src/domain/domain.pri
index e3653576..a2d126ac 100644
--- a/src/domain/domain.pri
+++ b/src/domain/domain.pri
@@ -22,7 +22,8 @@ HEADERS      += src/domain/UBGraphicsScene.h \
     src/domain/UBGraphicsMediaItem.h \
     src/domain/UBGraphicsAudioItem.h \
     src/domain/UBGraphicsAudioItemDelegate.h \
-    src/domain/UBAbstractUndoCommand.h
+    src/domain/UBAbstractUndoCommand.h\
+    src/domain/UBAngleWidget.h
                 
 HEADERS      += src/domain/UBGraphicsItemDelegate.h \
 				src/domain/UBGraphicsVideoItemDelegate.h \
@@ -54,7 +55,8 @@ SOURCES      += src/domain/UBGraphicsScene.cpp \
     src/domain/UBGraphicsMediaItem.cpp \
     src/domain/UBGraphicsAudioItem.cpp \
     src/domain/UBGraphicsAudioItemDelegate.cpp \
-    src/domain/UBAbstractUndoCommand.cpp
+    src/domain/UBAbstractUndoCommand.cpp \
+    src/domain/UBAngleWidget.cpp
                 
 SOURCES      += src/domain/UBGraphicsItemDelegate.cpp \
 				src/domain/UBGraphicsVideoItemDelegate.cpp \