Changeset df25521 in sasview for guitools

Timestamp:

Jun 9, 2008 3:50:54 PM (16 years ago)

Author:

Gervaise Alina <gervyh@…>

Branches:

master, ESS_GUI, ESS_GUI_Docs, ESS_GUI_batch_fitting, ESS_GUI_bumps_abstraction, ESS_GUI_iss1116, ESS_GUI_iss879, ESS_GUI_iss959, ESS_GUI_opencl, ESS_GUI_ordering, ESS_GUI_sync_sascalc, costrafo411, magnetic_scatt, release-4.1.1, release-4.1.2, release-4.2.2, release_4.0.1, ticket-1009, ticket-1094-headless, ticket-1242-2d-resolution, ticket-1243, ticket-1249, ticket885, unittest-saveload

Children:

06290c8

Parents:

105614c

Message:

dragging added

File:

• guitools/PlotPanel.py (modified) (7 diffs)

guitools/PlotPanel.py

@@ -13 +13 @@
 from pylab import  gca, gcf
 from plottables import Theory1D
+
+#from matplotlib.backend_bases import MouseEvent
 #from plottables import Data1D
 #TODO: make the plottables interactive
 
 DEBUG = False
+print "hello"
 
 from plottables import Graph
@@ -49 +52 @@
     #print"this is unit",unit
     return unit
-
 def _rescale(lo,hi,step,pt=None,bal=None,scale='linear'):
         """
@@ -133 +135 @@
         #self.Bind(EVT_FUNC_FIT, self.onFitRange)
         self.Bind(wx.EVT_CONTEXT_MENU, self.onContextMenu)
+        
         #self.Bind(EVT_PROPERTY, self._onEVT_FUNC_PROPERTY)
         # Define some constants
@@ -145 +148 @@
         self.prevYtrans ="y"
         self.canvas.mpl_connect('scroll_event',self.onWheel)
+        #taking care of dragging
+        self.canvas.mpl_connect('motion_notify_event',self.onMouseMotion)
+        self.canvas.mpl_connect('button_press_event',self.onLeftDown)
+        self.canvas.mpl_connect('button_release_event',self.onLeftUp)
+        #self.canvas.mpl_connect('key_press_event',self.onKeyPress)
+       
+        self.leftdown=False
+        self.leftup=False
+        self.mousemotion=False
+        
+        #self.canvas.Bind(wx.EVT_MOUSE_EVENTS,self.onTest)
         self.axes = [self.subplot]
          # new data for the fit 
@@ -160 +174 @@
         self.ErrBvalue=None
         self.Chivalue=None
-        
+        self.begDrag=False
+        #self.begDragI=False
+        self.xInit=None
+        self.yInit=None
+        self.xFinal=None
+        self.yFinal=None
+   
+    def onLeftDown(self,event): 
+        """ left button down and ready to drag"""
+        self.leftdown=True
+        ax = event.inaxes
+        if ax !=None:
+            x,y = event.x,event.y
+            self.xInit,self.yInit=ax.transAxes.inverse_xy_tup((x,y))
+        
+    def onLeftUp(self,event): 
+        """ Dragging is done """
+        
+        self.leftup=True
+        
+        if self.mousemotion==True:
+            ax = event.inaxes
+            if ax !=None:
+                x,y = event.x,event.y
+                self.xFinal,self.yFinal=ax.transAxes.inverse_xy_tup((x,y))
+                
+                #print "this is xFinal %f this is yFinal %f"%(self.xFinal, self.yFinal)
+                #print "this is xInit %f this is yInit %f"%(self.xInit, self.yInit)
+                #print "this is xdelta %f and ydelta %f"%(xdelta,ydelta)
+                xdelta = self.xFinal -self.xInit
+                ydelta = self.yFinal -self.yInit
+                
+                self.dragHelper(xdelta,ydelta)
+            
+    def onMouseMotion(self,event): 
+        if self.leftdown==True:
+            self.mousemotion=True 
+            
+    def dragHelper(self,xdelta,ydelta):
+        """ dragging occurs here"""
+       
+        # Event occurred inside a plotting area
+        for ax in self.axes:
+            lo,hi= ax.get_xlim()
+            #print "x lo %f and x hi %f"%(lo,hi)
+            newlo,newhi= lo- xdelta, hi- xdelta
+            if self.xscale=='log':
+                if newlo > 0:
+                    newlo= math.log10(newlo)
+                if newhi > 0:
+                    newhi= math.log10(newhi)
+            if self.xscale=='log':
+                ax.set_xlim(math.pow(10,newlo),math.pow(10,newhi))
+            else:
+                ax.set_xlim(newlo,newhi)
+            print "new lo %f and new hi %f"%(newlo,newhi)
+            
+            lo,hi= ax.get_ylim()
+            print "y lo %f and y hi %f"%(lo,hi)
+            newlo,newhi= lo- ydelta, hi- ydelta
+            if self.yscale=='log':
+                if newlo > 0:
+                    newlo= math.log10(newlo)
+                if newhi > 0:
+                    newhi= math.log10(newhi)
+            if  self.yscale=='log':
+                ax.set_ylim(math.pow(10,newlo),math.pow(10,newhi))
+            else:
+                ax.set_ylim(newlo,newhi)
+        self.canvas.draw_idle()
+        
+        
+   
     def resetFitView(self):
         """
@@ -174 +260 @@
         self.ErrBvalue=None
         self.Chivalue=None
-        
+    
     def onWheel(self, event):
         """
@@ -350 +436 @@
         self.figure.canvas.draw_idle()
         
-
-  
-  
         
     def onSaveImage(self, evt):