# HG changeset patch
# User John W. Eaton <jwe@octave.org>
# Date 1425054252 18000
# Node ID 815db217f6f45077d88830ba7233ceebd2016594
# Parent  60fe3ef12bb0c1ea0a08b52ac9f0db4640286b3d
provide autoscale option for Qt plotting (bug #44307)

* Canvas.h, Canvas.cc (Canvas::autoAxes): New pure virtual function.
(Canvas::canvasAutoAxes): New function.
(autoscale_axes): New static function.
(Canvas::canvasMouseDoubleClickEvent, Canvas::canvasMousePressEvent):
Use it.
* Figure.h, Figure.cc (Figure::createFigureToolBarAndMenuBar):
Add autoscale button to window.
(Figure::autoAxes): New function.
* GLCanvas.h, GLCanvas.cc (GLCanvas::autoAxes): New function.

diff -r 60fe3ef12bb0 -r 815db217f6f4 libgui/graphics/Canvas.cc
--- a/libgui/graphics/Canvas.cc	Thu Feb 26 18:57:58 2015 -0600
+++ b/libgui/graphics/Canvas.cc	Fri Feb 27 11:24:12 2015 -0500
@@ -199,6 +199,44 @@
     }
 }
 
+static void
+autoscale_axes (axes::properties& ap)
+{
+  ap.clear_zoom_stack ();
+
+  ap.set_xlimmode ("auto");
+  ap.set_ylimmode ("auto");
+  ap.set_zlimmode ("auto");
+}
+
+void Canvas::canvasAutoAxes (const graphics_handle& handle)
+{
+  gh_manager::auto_lock lock;
+
+  graphics_object go = gh_manager::get_object (handle);
+
+  if (go.valid_object ())
+    {
+      figure::properties& fp = Utils::properties<figure> (go);
+
+      graphics_handle ah = fp.get_currentaxes ();
+
+      graphics_object ax = gh_manager::get_object (ah);
+
+      if (ax.valid_object ())
+        {
+          axes::properties& ap = Utils::properties<axes> (ax);
+
+          if (ap.handlevisibility_is ("on") && ap.is_visible ())
+            {
+              autoscale_axes (ap);
+
+              redraw (true);
+            }
+        }
+    }
+}
+
 void Canvas::canvasPaintEvent (void)
 {
   if (! m_redrawBlocked)
@@ -397,10 +435,7 @@
                   axes::properties& ap =
                     Utils::properties<axes> (axesObj);
 
-                  ap.clear_zoom_stack ();
-                  ap.set_xlimmode ("auto");
-                  ap.set_ylimmode ("auto");
-                  ap.set_zlimmode ("auto");
+                  autoscale_axes (ap);
                 }
             }
 
@@ -573,10 +608,7 @@
                           axes::properties& ap =
                             Utils::properties<axes> (axesObj);
 
-                          ap.clear_zoom_stack ();
-                          ap.set_xlimmode ("auto");
-                          ap.set_ylimmode ("auto");
-                          ap.set_zlimmode ("auto");
+                          autoscale_axes (ap);
                         }
                       break;
 
diff -r 60fe3ef12bb0 -r 815db217f6f4 libgui/graphics/Canvas.h
--- a/libgui/graphics/Canvas.h	Thu Feb 26 18:57:58 2015 -0600
+++ b/libgui/graphics/Canvas.h	Fri Feb 27 11:24:12 2015 -0500
@@ -67,6 +67,7 @@
 
   virtual void toggleAxes (const graphics_handle& handle) = 0;
   virtual void toggleGrid (const graphics_handle& handle) = 0;
+  virtual void autoAxes (const graphics_handle& handle) = 0;
 
 protected:
   virtual void draw (const graphics_handle& handle) = 0;
@@ -85,6 +86,7 @@
 
   void canvasToggleAxes (const graphics_handle& handle);
   void canvasToggleGrid (const graphics_handle& handle);
+  void canvasAutoAxes (const graphics_handle& handle);
   void canvasPaintEvent (void);
   void canvasMouseDoubleClickEvent (QMouseEvent* event);
   void canvasMouseMoveEvent (QMouseEvent* event);
diff -r 60fe3ef12bb0 -r 815db217f6f4 libgui/graphics/Figure.cc
--- a/libgui/graphics/Figure.cc	Thu Feb 26 18:57:58 2015 -0600
+++ b/libgui/graphics/Figure.cc	Fri Feb 27 11:24:12 2015 -0500
@@ -282,6 +282,10 @@
   connect (toggle_grid, SIGNAL (triggered (void)),
            this, SLOT (toggleGrid (void)));
 
+  QAction *auto_axes = m_figureToolBar->addAction ("Autoscale");
+  connect (auto_axes, SIGNAL (triggered (void)),
+           this, SLOT (autoAxes (void)));
+
   m_menuBar = new MenuBar (win);
   win->setMenuBar (m_menuBar);
 
@@ -860,4 +864,12 @@
     canvas->toggleGrid (m_handle);
 }
   
+void Figure::autoAxes (void)
+{
+  Canvas* canvas = m_container->canvas (m_handle);
+
+  if (canvas)
+    canvas->autoAxes (m_handle);
+}
+  
 }; // namespace QtHandles
diff -r 60fe3ef12bb0 -r 815db217f6f4 libgui/graphics/Figure.h
--- a/libgui/graphics/Figure.h	Thu Feb 26 18:57:58 2015 -0600
+++ b/libgui/graphics/Figure.h	Fri Feb 27 11:24:12 2015 -0500
@@ -123,6 +123,7 @@
   void updateContainer (void);
   void toggleAxes (void);
   void toggleGrid (void);
+  void autoAxes (void);
 
 signals:
   void asyncUpdate (void);
diff -r 60fe3ef12bb0 -r 815db217f6f4 libgui/graphics/GLCanvas.cc
--- a/libgui/graphics/GLCanvas.cc	Thu Feb 26 18:57:58 2015 -0600
+++ b/libgui/graphics/GLCanvas.cc	Fri Feb 27 11:24:12 2015 -0500
@@ -70,6 +70,11 @@
   canvasToggleGrid (gh);
 }
 
+void GLCanvas::autoAxes (const graphics_handle& gh)
+{
+  canvasAutoAxes (gh);
+}
+
 graphics_object GLCanvas::selectFromAxes (const graphics_object& ax,
                                           const QPoint& pt)
 {
diff -r 60fe3ef12bb0 -r 815db217f6f4 libgui/graphics/GLCanvas.h
--- a/libgui/graphics/GLCanvas.h	Thu Feb 26 18:57:58 2015 -0600
+++ b/libgui/graphics/GLCanvas.h	Fri Feb 27 11:24:12 2015 -0500
@@ -39,6 +39,7 @@
   void draw (const graphics_handle& handle);
   void toggleAxes (const graphics_handle& handle);
   void toggleGrid (const graphics_handle& handle);
+  void autoAxes (const graphics_handle& handle);
   void drawZoomBox (const QPoint& p1, const QPoint& p2);
   void resize (int /* x */, int /* y */,
                int /* width */, int /* height */) { }