Add canvas rotation using NumPad + KeyPad numbers

src/ctrl/KeyBinding.cpp

@@ -42,7 +42,7 @@ KeyBinding::KeyBinding(int aKeyCode, Qt::KeyboardModifiers aModifiers, int aSubK
     , mSubKeyCode(aSubKeyCode)
     , mModifiers()
 {
-    mModifiers = aModifiers & (Qt::ControlModifier | Qt::ShiftModifier | Qt::AltModifier | Qt::MetaModifier);
+	mModifiers = aModifiers & (Qt::ControlModifier | Qt::ShiftModifier | Qt::AltModifier | Qt::MetaModifier | Qt::KeypadModifier);
 }
 
 void KeyBinding::setSubKeyCode(int aSubKeyCode)
@@ -53,7 +53,12 @@ void KeyBinding::setSubKeyCode(int aSubKeyCode)
 bool KeyBinding::isValidBinding() const
 {
     return getKeyValidity(mKeyCode) &&
-            (mSubKeyCode == -1 || getKeyValidity(mSubKeyCode));
+			(mSubKeyCode == -1 || getKeyValidity(mSubKeyCode));
+}
+
+bool KeyBinding::hasKeypadModifier() const
+{
+	return mModifiers & Qt::KeypadModifier;
 }
 
 bool KeyBinding::hasControlModifier() const
@@ -97,6 +102,8 @@ QString KeyBinding::text() const
     if (hasShiftModifier()) t += "Shift + ";
     if (hasAltModifier()) t += "Alt + ";
 
+	if (hasKeypadModifier()) t += "Keypad + ";
+
     if (mKeyCode != -1)
     {
         t += QKeySequence(mKeyCode).toString();
@@ -148,6 +155,7 @@ void KeyBinding::setSerialValue(const QString& aValue)
     if (mod & 0x01) mModifiers |= Qt::ControlModifier;
     if (mod & 0x02) mModifiers |= Qt::ShiftModifier;
     if (mod & 0x04) mModifiers |= Qt::AltModifier;
+	if (mod & 0x06) mModifiers |= Qt::KeypadModifier;
     if (mod & 0x08) mModifiers |= Qt::MetaModifier;
 
     if (!isValidBinding())
@@ -164,6 +172,7 @@ QString KeyBinding::serialValue() const
     mod |= mModifiers.testFlag(Qt::ControlModifier) ? 0x01 : 0x00;
     mod |= mModifiers.testFlag(Qt::ShiftModifier) ? 0x02 : 0x00;
     mod |= mModifiers.testFlag(Qt::AltModifier) ? 0x04 : 0x00;
+	mod |= mModifiers.testFlag(Qt::KeypadModifier) ? 0x06 : 0x00;
     mod |= mModifiers.testFlag(Qt::MetaModifier) ? 0x08 : 0x00;
     return QString::number(mKeyCode) + "," + QString::number(mod) + "," + QString::number(mSubKeyCode);
 }

src/ctrl/KeyBinding.h

@@ -23,6 +23,7 @@ class KeyBinding
     int subKeyCode() const { return mSubKeyCode; }
     bool hasSubKeyCode() const { return mSubKeyCode != -1; }
     bool isValidBinding() const;
+	bool hasKeypadModifier() const;
     bool hasControlModifier() const;
     bool hasShiftModifier() const;
     bool hasAltModifier() const;

src/gui/KeyCommandMap.cpp

@@ -55,6 +55,12 @@ KeyCommandMap::KeyCommandMap(QWidget& aParent)
     addNewKey("RotateCanvas", view, tr("Rotate canvas"),
               ctrl::KeyBinding(Qt::Key_Space, Qt::ShiftModifier));
 
+	addNewKey("RotateCanvas15Clockwise", view, tr("Rotate canvas 15° clockwise"),
+			  ctrl::KeyBinding(Qt::Key_6, Qt::KeypadModifier));
+
+	addNewKey("RotateCanvas15AntiClockwise", view, tr("Rotate canvas 15° anti clockwise"),
+			  ctrl::KeyBinding(Qt::Key_4, Qt::KeypadModifier));
+
     addNewKey("ResetCanvasAngle", view, tr("Reset canvas angle"),
               ctrl::KeyBinding(Qt::Key_Space, Qt::NoModifier, Qt::Key_F1));
 

src/gui/MainDisplayWidget.cpp

@@ -97,6 +97,34 @@ MainDisplayWidget::MainDisplayWidget(ViaPoint& aViaPoint, QWidget* aParent)
             }
         }
 
+		// rotate canvas clockwise
+		{
+			auto key = mViaPoint.keyCommandMap()->get("RotateCanvas15Clockwise");
+			if (key)
+			{
+
+				key->invoker = [=]()
+				{
+					mCanvasMover.rotate(qDegreesToRadians(15.0f));
+					updateRender();
+				};
+			}
+		}
+
+		// rotate canvas anti-clockwise
+		{
+			auto key = mViaPoint.keyCommandMap()->get("RotateCanvas15AntiClockwise");
+			if (key)
+			{
+
+				key->invoker = [=]()
+				{
+					mCanvasMover.rotate(qDegreesToRadians(-15.0f));
+					updateRender();
+				};
+			}
+		}
+
         // reset canvas angle
         {
             auto key = mViaPoint.keyCommandMap()->get("ResetCanvasAngle");
@@ -161,7 +189,7 @@ void MainDisplayWidget::resetCamera()
         camera.setCenter(QVector2D(scrSize.width() * 0.5f, scrSize.height() * 0.5f));
         if (scrSize.width() > 0 && scrSize.height() > 0 && imgSize.width() > 0 && imgSize.height() > 0)
         {
-            auto scaleX = (float)scrSize.width() / imgSize.width();
+			auto scaleX = (float)scrSize.width() / imgSize.width();
             auto scaleY = (float)scrSize.height() / imgSize.height();
             auto minScale = scaleX < scaleY ? scaleX : scaleY;
             camera.setScale(minScale);
@@ -490,11 +518,11 @@ void MainDisplayWidget::onViewSettingChanged(const MainViewSetting& aSetting)
     }
     else if (mViewSetting.rotateViewACW)
     {
-        mCanvasMover.rotate((float)(-M_PI / 18.0));
+		mCanvasMover.rotate(qDegreesToRadians(-15.0f));
     }
     else if (mViewSetting.rotateViewCW)
     {
-        mCanvasMover.rotate((float)(M_PI / 18.0));
+		mCanvasMover.rotate(qDegreesToRadians(15.0f));
     }
 
     updateRender();

src/gui/MainDisplayWidget.h

@@ -6,6 +6,7 @@
 #include <QScopedPointer>
 #include <QTabBar>
 #include <QReadWriteLock>
+#include <QtMath>
 #include "util/LinkPointer.h"
 #include "gl/Global.h"
 #include "gl/Root.h"

src/gui/MainWindow.cpp

@@ -212,7 +212,7 @@ MainWindow::MainWindow(ctrl::System& aSystem, GUIResources& aResources, const Lo
         {
             dockWidget->setStyleSheet(QTextStream(&stylesheet).readAll());
         }
-        mTool = new ToolWidget(mViaPoint, mGUIResources, QSize(192, 136), dockWidget);
+		mTool = new ToolWidget(mViaPoint, mGUIResources, *mKeyCommandMap, QSize(192, 136), dockWidget);
         dockWidget->setWidget(mTool);
     }
 

src/gui/MainWindow.h

@@ -66,7 +66,7 @@ class MainWindow : public QMainWindow
     ctrl::System& mSystem;
     GUIResources& mGUIResources;
     ViaPoint mViaPoint;
-    QScopedPointer<KeyCommandMap> mKeyCommandMap;
+	QScopedPointer<KeyCommandMap> mKeyCommandMap;
     QScopedPointer<KeyCommandInvoker> mKeyCommandInvoker;
     MouseSetting mMouseSetting;
     MainMenuBar* mMainMenuBar;

src/gui/ToolWidget.cpp

@@ -5,11 +5,12 @@
 namespace gui
 {
 
-ToolWidget::ToolWidget(ViaPoint& aViaPoint, GUIResources& aResources,
-                       const QSize& aSizeHint, QWidget* aParent)
+ToolWidget::ToolWidget(ViaPoint& aViaPoint, GUIResources& aResources, KeyCommandMap &aKeyCommandMap,
+					   const QSize& aSizeHint, QWidget* aParent)
     : QWidget(aParent)
     , mViaPoint(aViaPoint)
     , mResources(aResources)
+	, mKeyCommandMap(aKeyCommandMap)
     , mSizeHint(aSizeHint)
     , mViewPanel()
     , mModePanel()
@@ -108,19 +109,24 @@ void ToolWidget::createViewPanel()
         this->viewSetting().cutImagesByTheFrame = aChecked;
         this->onViewSettingChanged(this->viewSetting());
     });
-    mViewPanel->addButton("rotateac", false, tr("Rotate the View Anticlockwise"), [=](bool)
+
+	QString _rotateViewAntiClockwiseText = this->mKeyCommandMap.get("RotateCanvas15AntiClockwise")->binding.text();
+	mViewPanel->addButton("rotateac", false, tr("Rotate the View Anticlockwise (%1").arg(_rotateViewAntiClockwiseText), [=](bool)
     {
         this->viewSetting().rotateViewACW = true;
         this->onViewSettingChanged(this->viewSetting());
         this->viewSetting().rotateViewACW = false;
     });
+
     mViewPanel->addButton("resetrot", false, tr("Reset Rotation of the View"), [=](bool)
     {
         this->viewSetting().resetRotateView = true;
         this->onViewSettingChanged(this->viewSetting());
         this->viewSetting().resetRotateView = false;
     });
-    mViewPanel->addButton("rotatecw", false, tr("Rotate the View Clockwise"), [=](bool)
+
+	QString _rotateViewClockwiseText = this->mKeyCommandMap.get("RotateCanvas15Clockwise")->binding.text();
+	mViewPanel->addButton("rotatecw", false, tr("Rotate the View Clockwise (%1)").arg(_rotateViewClockwiseText), [=](bool)
     {
         this->viewSetting().rotateViewCW = true;
         this->onViewSettingChanged(this->viewSetting());

src/gui/ToolWidget.h

@@ -25,7 +25,7 @@ class ToolWidget : public QWidget
 {
     Q_OBJECT
 public:
-    ToolWidget(ViaPoint& aViaPoint, GUIResources& aResources,
+	ToolWidget(ViaPoint& aViaPoint, GUIResources& aResources, KeyCommandMap& aKeyCommandMap,
                const QSize& aSizeHint, QWidget* aParent);
 
     void setDriver(ctrl::Driver* aDriver);
@@ -51,6 +51,7 @@ class ToolWidget : public QWidget
 
     ViaPoint& mViaPoint;
     GUIResources& mResources;
+	KeyCommandMap& mKeyCommandMap;
     const QSize mSizeHint;
     tool::ViewPanel* mViewPanel;
     tool::ModePanel* mModePanel;