From ce213312003fdf9f67e2f5b72f2f6166dfb3d530 Mon Sep 17 00:00:00 2001
From: kriegerj <j.krieger@dkfz.de>
Date: Mon, 12 Oct 2015 17:05:15 +0200
Subject: [PATCH] tried to add a special pop-menu, when left
 ouse-double-lcicked (optional)

---
 jkqtplotter.cpp | 81 ++++++++++++++++++++++++++++++++++++++++++++-----
 jkqtplotter.h   | 23 ++++++++++++++
 2 files changed, 97 insertions(+), 7 deletions(-)

diff --git a/jkqtplotter.cpp b/jkqtplotter.cpp
index 272c63e854..f8c9ad2dba 100644
--- a/jkqtplotter.cpp
+++ b/jkqtplotter.cpp
@@ -60,6 +60,8 @@ JKQtPlotter::JKQtPlotter(QWidget *parent):
 
 void JKQtPlotter::init(bool datastore_internal, QWidget* parent, JKQTPdatastore* datast)
 {
+    leftDoubleClickAction=LeftDoubleClickDefault;
+    menuSpecialContextMenu=NULL;
     mouseContextX=0;
     mouseContextY=0;
     setParent(parent);
@@ -273,6 +275,8 @@ void JKQtPlotter::mouseMoveEvent ( QMouseEvent * event ) {
 
 void JKQtPlotter::mousePressEvent ( QMouseEvent * event ){
     if (event->button()==Qt::LeftButton) {
+        mouseLastClickX=event->x();
+        mouseLastClickY=event->y();
         if ( (mouseActionMode!=JKQtPlotter::NoMouseAction))
         {
             mouseDragRectXStart=plotter->p2x(event->x()/magnification);
@@ -284,6 +288,8 @@ void JKQtPlotter::mousePressEvent ( QMouseEvent * event ){
             if (mouseActionMode==JKQtPlotter::ClickEvents) emit userClickFinished(mouseDragRectXStart, mouseDragRectYStart, event->modifiers());
         }
     } else if (event->button()==Qt::RightButton) {
+        mouseLastClickX=event->x();
+        mouseLastClickY=event->y();
         if (rightMouseButtonAction==JKQtPlotter::RightMouseButtonZoom) {
             double xmin=plotter->p2x((long)round((double)plotter->get_iplotBorderLeft()-(double)plotter->get_plotWidth()/2.0));
             double xmax=plotter->p2x((long)round((double)plotter->get_iplotBorderLeft()+1.5*(double)plotter->get_plotWidth()));
@@ -305,12 +311,8 @@ void JKQtPlotter::mousePressEvent ( QMouseEvent * event ){
             //update();
             event->accept();
         } else if (rightMouseButtonAction==JKQtPlotter::RightMouseButtonContextMenu) {
-            mouseContextX=plotter->p2x(event->x()/magnification);
-            mouseContextY=plotter->p2y((event->y()-getPlotYOffset())/magnification);
-            contextMenu->close();
-            initContextMenu();
-            contextMenu->popup(event->globalPos());
-            emit contextMenuOpened(mouseContextX, mouseContextY, contextMenu);
+            openContextMenu(event->x(), event->y());
+
             event->accept();
         }
     }
@@ -324,6 +326,9 @@ void JKQtPlotter::mousePressEvent ( QMouseEvent * event ){
 }
 
 void JKQtPlotter::mouseReleaseEvent ( QMouseEvent * event ){
+    if ((event->flags()&Qt::MouseEventCreatedDoubleClick)==Qt::MouseEventCreatedDoubleClick) {
+        return;
+    }
     if (mouseDragingRectangle && event->button()==Qt::LeftButton) {
         mouseDragRectXEnd=plotter->p2x(event->x()/magnification);
         mouseDragRectYEnd=plotter->p2y((event->y()-getPlotYOffset())/magnification);
@@ -370,7 +375,19 @@ void JKQtPlotter::mouseDoubleClickEvent ( QMouseEvent * event ){
     if  ( (event->x()/magnification>=plotter->get_iplotBorderLeft()) && (event->x()/magnification<=plotter->get_plotWidth()+plotter->get_iplotBorderLeft())  &&
           ((event->y()-getPlotYOffset())/magnification>=plotter->get_iplotBorderTop()) && ((event->y()-getPlotYOffset())/magnification<=plotter->get_plotHeight()+plotter->get_iplotBorderTop()) ) {
 
-        if (rightMouseButtonAction==JKQtPlotter::RightMouseButtonZoom) {
+        mouseLastClickX=event->x();
+        mouseLastClickY=event->y();
+        if (event->button()==Qt::LeftButton) {
+            if (leftDoubleClickAction==LeftDoubleClickContextMenu) {
+                openContextMenu(event->x(), event->y());
+                event->accept();
+            } else if (leftDoubleClickAction==LeftDoubleClickSpecialContextMenu) {
+                openSpecialContextMenu(event->x(), event->y());
+                event->accept();
+            }
+        }
+
+        if (rightMouseButtonAction==JKQtPlotter::RightMouseButtonZoom && event->button()==Qt::RightButton) {
             double factor=4.0;
             if (event->button()==Qt::RightButton) factor=1;
             double xmin=plotter->p2x((long)round((double)event->x()/magnification-(double)plotter->get_plotWidth()/factor));
@@ -770,6 +787,15 @@ void JKQtPlotter::set_zoomByMouseRectangle(bool zomByrectangle) {
     else mouseActionMode=JKQtPlotter::NoMouseAction;
 }
 
+void JKQtPlotter::set_menuSpecialContextMenu(QMenu *menu)
+{
+    menuSpecialContextMenu=menu;
+    if (menuSpecialContextMenu) {
+        menuSpecialContextMenu->setParent(this);
+        menuSpecialContextMenu->close();
+    }
+}
+
 void JKQtPlotter::setMagnification(double m)
 {
     magnification=m;
@@ -813,6 +839,47 @@ void JKQtPlotter::setMousePositionLabel(const QString &text)
     if (displayCustomMousePosition) update();
 }
 
+void JKQtPlotter::openContextMenu()
+{
+    openContextMenu(mouseLastClickX, mouseLastClickY);
+}
+
+void JKQtPlotter::openContextMenu(int x, int y)
+{
+    //qDebug()<<"openContextMenu("<<x<<y<<contextMenu<<")";
+    mouseContextX=plotter->p2x(x/magnification);
+    mouseContextY=plotter->p2y((y-getPlotYOffset())/magnification);
+    contextMenu->close();
+    initContextMenu();
+    contextMenu->popup(mapToGlobal(QPoint(x,y)));
+    qDebug()<<" -> "<<mapToGlobal(QPoint(x,y))<<contextMenu->size()<<contextMenu->pos()<<contextMenu->parent();
+    emit contextMenuOpened(mouseContextX, mouseContextY, contextMenu);
+    //qDebug()<<"openContextMenu("<<x<<y<<contextMenu<<") ... DONE";
+}
+
+void JKQtPlotter::openSpecialContextMenu()
+{
+    openSpecialContextMenu(mouseLastClickX, mouseLastClickY);
+}
+
+void JKQtPlotter::openSpecialContextMenu(int x, int y)
+{
+    qDebug()<<"openSpecialContextMenu("<<x<<y<<menuSpecialContextMenu<<")";
+    if (menuSpecialContextMenu) {
+        for (int i=0; i<menuSpecialContextMenu->actions().size(); i++) {
+            qDebug()<<"  - "<<menuSpecialContextMenu->actions().at(i)->text();
+        }
+        mouseContextX=plotter->p2x(x/magnification);
+        mouseContextY=plotter->p2y((y-getPlotYOffset())/magnification);
+        menuSpecialContextMenu->close();
+        menuSpecialContextMenu->popup(mapToGlobal(QPoint(x,y)));
+        menuSpecialContextMenu->resize(menuSpecialContextMenu->sizeHint());
+        qDebug()<<" -> "<<mapToGlobal(QPoint(x,y))<<menuSpecialContextMenu->size()<<menuSpecialContextMenu->pos()<<menuSpecialContextMenu->parent();
+        emit contextMenuOpened(mouseContextX, mouseContextY, menuSpecialContextMenu);
+        qDebug()<<"openSpecialContextMenu("<<x<<y<<menuSpecialContextMenu<<") ... DONE";
+    }
+}
+
 
 void JKQtPlotter::set_doDrawing(bool enable)
 {
diff --git a/jkqtplotter.h b/jkqtplotter.h
index 66a7763dc2..3441a4d4a5 100644
--- a/jkqtplotter.h
+++ b/jkqtplotter.h
@@ -89,6 +89,14 @@ class LIB_EXPORT JKQtPlotter: public QWidget {
             RightMouseButtonContextMenu=2
         };
 
+        enum LeftDoubleClickAction {
+            LeftDoubleClickDefault,
+            LeftDoubleClickContextMenu,
+            LeftDoubleClickSpecialContextMenu,
+        };
+
+
+
 
         /** \brief class constructor
          */
@@ -199,11 +207,16 @@ class LIB_EXPORT JKQtPlotter: public QWidget {
 
         //GET_SET_MACRO(bool, zoomByDoubleAndRightMouseClick);
         JKQTPGET_SET_MACRO(RightMouseButtonAction, rightMouseButtonAction);
+        JKQTPGET_SET_MACRO(LeftDoubleClickAction, leftDoubleClickAction);
+        JKQTPGET_MACRO(QMenu*, menuSpecialContextMenu);
+        void set_menuSpecialContextMenu(QMenu* menu);
 
         JKQTPGET_SET_MACRO(bool, zoomByMouseWheel);
 
         JKQTPGetMacro(double, mouseContextX)
         JKQTPGetMacro(double, mouseContextY)
+        JKQTPGetMacro(int, mouseLastClickX)
+        JKQTPGetMacro(int, mouseLastClickY)
 
         inline JKQTPhorizontalAxis* getXAxis() { return plotter->getXAxis(); }
         inline JKQTPverticalAxis* getYAxis() { return plotter->getYAxis(); }
@@ -400,6 +413,10 @@ class LIB_EXPORT JKQtPlotter: public QWidget {
 
         void setMousePositionLabel(const QString& text);
 
+        void openContextMenu();
+        void openContextMenu(int x, int y);
+        void openSpecialContextMenu();
+        void openSpecialContextMenu(int x, int y);
     signals:
         /** \brief signal: emitted whenever the mouse moved over the plot */
         void plotMouseMove(double x, double y);
@@ -498,6 +515,10 @@ class LIB_EXPORT JKQtPlotter: public QWidget {
         /** \brief indicates whether zooming using the mouse-wheel is activated */
         bool zoomByMouseWheel;
 
+        /** \brief indicates the action to perform on a left mouse-button double-click */
+        LeftDoubleClickAction leftDoubleClickAction;
+        QMenu* menuSpecialContextMenu;
+
 
 
         /** \brief toolbar class used for user input */
@@ -597,6 +618,8 @@ class LIB_EXPORT JKQtPlotter: public QWidget {
         QMenu* contextMenu;
         double mouseContextX;
         double mouseContextY;
+        int mouseLastClickX;
+        int mouseLastClickY;
         QList<QMenu*> contextSubMenus;
         void initContextMenu();