Make all mouse events save history

sleepyhead/Graphs/gGraph.cpp

@@ -761,6 +761,7 @@ void gGraph::mouseMoveEvent(QMouseEvent *event)
                     min_x = rmax_x - xx;
                 }
 
+                m_graphview->saveHistory();
                 m_graphview->SetXBounds(min_x, max_x, m_group, false);
                 doredraw = true;
             } else {
@@ -784,6 +785,7 @@ void gGraph::mouseMoveEvent(QMouseEvent *event)
                     min_x = rmax_x - xx;
                 }
 
+                m_graphview->saveHistory();
                 m_graphview->SetXBounds(min_x, max_x, m_group, false);
                 doredraw = true;
             }
@@ -889,6 +891,7 @@ void gGraph::mouseReleaseEvent(QMouseEvent *event)
                 } else {
                     if (a2 - a1 < zoom_hard_limit) { a2 = a1 + zoom_hard_limit; }
 
+                    m_graphview->saveHistory();
                     m_graphview->SetXBounds(a1, a2, m_group);
                 }
             } else {
@@ -906,7 +909,7 @@ void gGraph::mouseReleaseEvent(QMouseEvent *event)
                     qDebug() << "Foo2??";
                 } else  {
                     if (a2 - a1 < zoom_hard_limit) { a2 = a1 + zoom_hard_limit; }
-
+                    m_graphview->saveHistory();
                     m_graphview->SetXBounds(a1, a2, m_group);
                 }
             }
@@ -980,6 +983,7 @@ void gGraph::mouseReleaseEvent(QMouseEvent *event)
                 min_x = rmax_x - xx;
             }
 
+            m_graphview->saveHistory();
             m_graphview->SetXBounds(min_x, max_x, m_group);
             m_lastx23 = x;
         }
@@ -1116,6 +1120,9 @@ void gGraph::ZoomX(double mult, int origin_px)
         min = max - q;
     }
 
+    extern const int max_history;
+
+    m_graphview->saveHistory();
     m_graphview->SetXBounds(min, max, m_group);
     //updateSelectionTime(max-min);
 }

sleepyhead/Graphs/gGraphView.cpp

@@ -39,6 +39,7 @@
 extern MainWindow *mainwin;
 extern QLabel *qstatus2;
 
+
 gToolTip::gToolTip(gGraphView *graphview)
     : m_graphview(graphview)
 {
@@ -1573,13 +1574,7 @@ void gGraphView::mouseReleaseEvent(QMouseEvent *event)
     if (m_button_down) {
         m_button_down = false;
         m_metaselect = event->modifiers() & Qt::ShiftModifier;
-
+        saveHistory();
-        const int max_history = 20;
-
-        history.push_front(SelectionHistoryItem(m_minx, m_maxx));
-        if (history.size() > max_history) {
-            history.pop_back();
-        }
 
         if (m_metaselect) {
             m_point_released = event->pos();
@@ -1603,7 +1598,10 @@ void gGraphView::keyReleaseEvent(QKeyEvent *event)
         if (history.size() > 0) {
             SelectionHistoryItem h = history.takeFirst();
             SetXBounds(h.minx, h.maxx);
+
+            // could Forward push this to another list?
         } else {
+            ResetBounds();
 
         }
         return;
@@ -1731,9 +1729,10 @@ void gGraphView::wheelEvent(QWheelEvent *event)
                         // What to do when ctrl+wheel is used on the graph title ??
                     } else {
                         // send event to graph..
-                        if (!m_button_down)
+                        if (!m_button_down) {
                             m_graphs[i]->wheelEvent(event);
                         }
+                    }
                 } else if ((y >= py + h) && (y <= py + h + graphSpacer + 1)) {
                     // What to do when the wheel is used on the resize handle?
                 }
@@ -1812,6 +1811,7 @@ void gGraphView::wheelEvent(QWheelEvent *event)
                 g->min_x = g->max_x - xx;
             }
 
+            saveHistory();
             SetXBounds(g->min_x, g->max_x, group);
         }
     }
@@ -1891,6 +1891,7 @@ void gGraphView::keyPressEvent(QKeyEvent *event)
             g->max_x = g->rmin_x + xx;
         }
 
+        saveHistory();
         SetXBounds(g->min_x, g->max_x, group);
     } else if (event->key() == Qt::Key_Right) {
         double xx = g->max_x - g->min_x;
@@ -1906,6 +1907,7 @@ void gGraphView::keyPressEvent(QKeyEvent *event)
             g->min_x = g->rmax_x - xx;
         }
 
+        saveHistory();
         SetXBounds(g->min_x, g->max_x, group);
     } else if (event->key() == Qt::Key_Up) {
         float zoom = 0.75F;

sleepyhead/Graphs/gGraphView.h

@@ -269,6 +269,13 @@ class gGraphView
     inline void setPrintScaleX(float x) { print_scaleX = x; }
     inline void setPrintScaleY(float y) { print_scaleY = y; }
 
+    void saveHistory() {
+        history.push_front(SelectionHistoryItem(m_minx, m_maxx));
+        if (history.size() > max_history) {
+            history.pop_back();
+        }
+    }
+
     //! \brief Returns true if all Graph objects contain NO day data. ie, graph area is completely empty.
     bool isEmpty();
 
@@ -374,6 +381,8 @@ class gGraphView
     int strings_drawn_this_frame;
     int strings_cached_this_frame;
 
+    QList<SelectionHistoryItem> history;
+
   protected:
 
     //! \brief The heart of the drawing code
@@ -464,7 +473,7 @@ class gGraphView
 
     qint64 m_minx, m_maxx;
 
-    QList<SelectionHistoryItem> history;
+    QList<SelectionHistoryItem> fwd_history;
     float print_scaleX, print_scaleY;
 
     QPixmap previous_day_snapshot;

sleepyhead/Graphs/glcommon.h

@@ -56,6 +56,8 @@ const QColor COLOR_ALT_BG2 =
     COLOR_White;               // Alternating Background Color 2 (Event Flags)
 
 
+const int max_history = 50;
+
 #ifndef M_PI
 const double M_PI = 3.141592653589793;
 #endif