#!/usr/bin/env python
# -*- coding: utf-8 -*-
#This file is part of PLCOpenEditor, a library implementing an IEC 61131-3 editor
#based on the plcopen standard.
#
#Copyright (C) 2007: Edouard TISSERANT and Laurent BESSARD
#
#See COPYING file for copyrights details.
#
#This library is free software; you can redistribute it and/or
#modify it under the terms of the GNU General Public
#License as published by the Free Software Foundation; either
#version 2.1 of the License, or (at your option) any later version.
#
#This library is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
#General Public License for more details.
#
#You should have received a copy of the GNU General Public
#License along with this library; if not, write to the Free Software
#Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import numpy
import math
import wx
import wx.lib.plot as plot
import wx.lib.buttons
from graphics.GraphicCommons import DebugViewer, MODE_SELECTION, MODE_MOTION
from controls import EditorPanel
from utils.BitmapLibrary import GetBitmap
colours = ['blue', 'red', 'green', 'yellow', 'orange', 'purple', 'brown', 'cyan',
'pink', 'grey']
markers = ['circle', 'dot', 'square', 'triangle', 'triangle_down', 'cross', 'plus', 'circle']
#-------------------------------------------------------------------------------
# Debug Variable Graphic Viewer class
#-------------------------------------------------------------------------------
SECOND = 1000000000
MINUTE = 60 * SECOND
HOUR = 60 * MINUTE
ZOOM_VALUES = map(lambda x:("x %.1f" % x, x), [math.sqrt(2) ** i for i in xrange(8)])
RANGE_VALUES = map(lambda x: (str(x), x), [25 * 2 ** i for i in xrange(6)])
TIME_RANGE_VALUES = [("%ds" % i, i * SECOND) for i in (1, 2, 5, 10, 20, 30)] + \
[("%dm" % i, i * MINUTE) for i in (1, 2, 5, 10, 20, 30)] + \
[("%dh" % i, i * HOUR) for i in (1, 2, 3, 6, 12, 24)]
class GraphicViewer(EditorPanel, DebugViewer):
def _init_Editor(self, prnt):
self.Editor = wx.Panel(prnt)
main_sizer = wx.FlexGridSizer(cols=1, hgap=0, rows=2, vgap=0)
main_sizer.AddGrowableCol(0)
main_sizer.AddGrowableRow(0)
self.Canvas = plot.PlotCanvas(self.Editor, name='Canvas')
def _axisInterval(spec, lower, upper):
if spec == 'border':
if lower == upper:
return lower - 0.5, upper + 0.5
else:
border = (upper - lower) * 0.05
return lower - border, upper + border
else:
return plot.PlotCanvas._axisInterval(self.Canvas, spec, lower, upper)
self.Canvas._axisInterval = _axisInterval
self.Canvas.SetYSpec('border')
self.Canvas.canvas.Bind(wx.EVT_LEFT_DOWN, self.OnCanvasLeftDown)
self.Canvas.canvas.Bind(wx.EVT_LEFT_UP, self.OnCanvasLeftUp)
self.Canvas.canvas.Bind(wx.EVT_MIDDLE_DOWN, self.OnCanvasMiddleDown)
self.Canvas.canvas.Bind(wx.EVT_MIDDLE_UP, self.OnCanvasMiddleUp)
self.Canvas.canvas.Bind(wx.EVT_MOTION, self.OnCanvasMotion)
self.Canvas.canvas.Bind(wx.EVT_SIZE, self.OnCanvasResize)
main_sizer.AddWindow(self.Canvas, 0, border=0, flag=wx.GROW)
range_sizer = wx.FlexGridSizer(cols=10, hgap=5, rows=1, vgap=0)
range_sizer.AddGrowableCol(5)
range_sizer.AddGrowableRow(0)
main_sizer.AddSizer(range_sizer, 0, border=5, flag=wx.GROW|wx.ALL)
range_label = wx.StaticText(self.Editor, label=_('Range:'))
range_sizer.AddWindow(range_label, 0, border=0, flag=wx.ALIGN_CENTER_VERTICAL)
self.CanvasRange = wx.ComboBox(self.Editor,
size=wx.Size(100, 28), style=wx.CB_READONLY)
self.Bind(wx.EVT_COMBOBOX, self.OnRangeChanged, self.CanvasRange)
range_sizer.AddWindow(self.CanvasRange, 0, border=0, flag=wx.ALIGN_CENTER_VERTICAL)
zoom_label = wx.StaticText(self.Editor, label=_('Zoom:'))
range_sizer.AddWindow(zoom_label, 0, border=0, flag=wx.ALIGN_CENTER_VERTICAL)
self.CanvasZoom = wx.ComboBox(self.Editor,
size=wx.Size(70, 28), style=wx.CB_READONLY)
self.Bind(wx.EVT_COMBOBOX, self.OnZoomChanged, self.CanvasZoom)
range_sizer.AddWindow(self.CanvasZoom, 0, border=0, flag=wx.ALIGN_CENTER_VERTICAL)
position_label = wx.StaticText(self.Editor, label=_('Position:'))
range_sizer.AddWindow(position_label, 0, border=0, flag=wx.ALIGN_CENTER_VERTICAL)
self.CanvasPosition = wx.ScrollBar(self.Editor,
size=wx.Size(0, 16), style=wx.SB_HORIZONTAL)
self.CanvasPosition.SetScrollbar(0, 10, 100, 10)
self.CanvasPosition.Bind(wx.EVT_SCROLL_THUMBTRACK,
self.OnPositionChanging, self.CanvasPosition)
self.CanvasPosition.Bind(wx.EVT_SCROLL_LINEUP,
self.OnPositionChanging, self.CanvasPosition)
self.CanvasPosition.Bind(wx.EVT_SCROLL_LINEDOWN,
self.OnPositionChanging, self.CanvasPosition)
self.CanvasPosition.Bind(wx.EVT_SCROLL_PAGEUP,
self.OnPositionChanging, self.CanvasPosition)
self.CanvasPosition.Bind(wx.EVT_SCROLL_PAGEDOWN,
self.OnPositionChanging, self.CanvasPosition)
range_sizer.AddWindow(self.CanvasPosition, 0, border=5, flag=wx.GROW|wx.ALL)
self.ResetButton = wx.lib.buttons.GenBitmapButton(self.Editor,
bitmap=GetBitmap("reset"), size=wx.Size(28, 28), style=wx.NO_BORDER)
self.ResetButton.SetToolTipString(_("Clear the graph values"))
self.Bind(wx.EVT_BUTTON, self.OnResetButton, self.ResetButton)
range_sizer.AddWindow(self.ResetButton, 0, border=0, flag=0)
self.CurrentButton = wx.lib.buttons.GenBitmapButton(self.Editor,
bitmap=GetBitmap("current"), size=wx.Size(28, 28), style=wx.NO_BORDER)
self.CurrentButton.SetToolTipString(_("Go to current value"))
self.Bind(wx.EVT_BUTTON, self.OnCurrentButton, self.CurrentButton)
range_sizer.AddWindow(self.CurrentButton, 0, border=0, flag=0)
self.ResetZoomOffsetButton = wx.lib.buttons.GenBitmapButton(self.Editor,
bitmap=GetBitmap("fit"), size=wx.Size(28, 28), style=wx.NO_BORDER)
self.ResetZoomOffsetButton.SetToolTipString(_("Reset zoom and offset"))
self.Bind(wx.EVT_BUTTON, self.OnResetZoomOffsetButton,
self.ResetZoomOffsetButton)
range_sizer.AddWindow(self.ResetZoomOffsetButton, 0, border=0, flag=0)
self.ExportGraphButton = wx.lib.buttons.GenBitmapButton(self.Editor,
bitmap=GetBitmap("export_graph"), size=wx.Size(28, 28), style=wx.NO_BORDER)
self.ExportGraphButton.SetToolTipString(_("Export graph values to clipboard"))
self.Bind(wx.EVT_BUTTON, self.OnExportGraphButtonClick,
self.ExportGraphButton)
range_sizer.AddWindow(self.ExportGraphButton, 0, border=0, flag=0)
self.Editor.SetSizer(main_sizer)
self.Editor.Bind(wx.EVT_MOUSEWHEEL, self.OnCanvasMouseWheel)
def __init__(self, parent, window, producer, instancepath = ""):
EditorPanel.__init__(self, parent, "", window, None)
DebugViewer.__init__(self, producer, True, False)
self.InstancePath = instancepath
self.RangeValues = None
self.CursorIdx = None
self.LastCursor = None
self.CurrentMousePos = None
self.CurrentMotionValue = None
self.Dragging = False
# Initialize Viewer mode to Selection mode
self.Mode = MODE_SELECTION
self.Datas = []
self.StartTick = 0
self.StartIdx = 0
self.EndIdx = 0
self.MinValue = None
self.MaxValue = None
self.YCenter = 0
self.CurrentZoom = 1.0
self.Fixed = False
self.Ticktime = self.DataProducer.GetTicktime()
self.RefreshCanvasRange()
for zoom_txt, zoom in ZOOM_VALUES:
self.CanvasZoom.Append(zoom_txt)
self.CanvasZoom.SetSelection(0)
self.AddDataConsumer(self.InstancePath.upper(), self)
def __del__(self):
DebugViewer.__del__(self)
self.RemoveDataConsumer(self)
def GetTitle(self):
if len(self.InstancePath) > 15:
return "..." + self.InstancePath[-12:]
return self.InstancePath
# Changes Viewer mode
def SetMode(self, mode):
if self.Mode != mode or mode == MODE_SELECTION:
if self.Mode == MODE_MOTION:
wx.CallAfter(self.Canvas.canvas.SetCursor, wx.NullCursor)
self.Mode = mode
if self.Mode == MODE_MOTION:
wx.CallAfter(self.Canvas.canvas.SetCursor, wx.StockCursor(wx.CURSOR_HAND))
def ResetView(self, register=False):
self.Datas = []
self.StartTick = 0
self.StartIdx = 0
self.EndIdx = 0
self.MinValue = None
self.MaxValue = None
self.CursorIdx = None
self.Fixed = False
self.Ticktime = self.DataProducer.GetTicktime()
if register:
self.AddDataConsumer(self.InstancePath.upper(), self)
self.ResetLastCursor()
self.RefreshCanvasRange()
self.RefreshView()
def RefreshNewData(self, *args, **kwargs):
self.RefreshView(*args, **kwargs)
DebugViewer.RefreshNewData(self)
def GetNearestData(self, tick, adjust):
ticks = numpy.array(zip(*self.Datas)[0])
new_cursor = numpy.argmin(abs(ticks - tick))
if adjust == -1 and ticks[new_cursor] > tick and new_cursor > 0:
new_cursor -= 1
elif adjust == 1 and ticks[new_cursor] < tick and new_cursor < len(self.Datas):
new_cursor += 1
return new_cursor
def GetBounds(self):
if self.StartIdx is None or self.EndIdx is None:
self.StartIdx = self.GetNearestData(self.StartTick, -1)
self.EndIdx = self.GetNearestData(self.StartTick + self.CurrentRange, 1)
def ResetBounds(self):
self.StartIdx = None
self.EndIdx = None
def RefreshCanvasRange(self):
if self.Ticktime == 0 and self.RangeValues != RANGE_VALUES:
self.RangeValues = RANGE_VALUES
self.CanvasRange.Clear()
for text, value in RANGE_VALUES:
self.CanvasRange.Append(text)
self.CanvasRange.SetStringSelection(RANGE_VALUES[0][0])
self.CurrentRange = RANGE_VALUES[0][1]
elif self.RangeValues != TIME_RANGE_VALUES:
self.RangeValues = TIME_RANGE_VALUES
self.CanvasRange.Clear()
for text, value in TIME_RANGE_VALUES:
self.CanvasRange.Append(text)
self.CanvasRange.SetStringSelection(TIME_RANGE_VALUES[0][0])
self.CurrentRange = TIME_RANGE_VALUES[0][1] / self.Ticktime
def RefreshView(self, force=False):
self.Freeze()
if force or not self.Fixed or (len(self.Datas) > 0 and self.StartTick + self.CurrentRange > self.Datas[-1][0]):
if (self.MinValue is not None and
self.MaxValue is not None and
self.MinValue != self.MaxValue):
Yrange = float(self.MaxValue - self.MinValue) / self.CurrentZoom
else:
Yrange = 2. / self.CurrentZoom
if not force and not self.Fixed and len(self.Datas) > 0:
self.YCenter = max(self.Datas[-1][1] - Yrange / 2,
min(self.YCenter,
self.Datas[-1][1] + Yrange / 2))
var_name = self.InstancePath.split(".")[-1]
self.GetBounds()
self.VariableGraphic = plot.PolyLine(self.Datas[self.StartIdx:self.EndIdx + 1],
legend=var_name, colour=colours[0])
self.GraphicsObject = plot.PlotGraphics([self.VariableGraphic], _("%s Graphics") % var_name, _("Tick"), _("Values"))
self.Canvas.Draw(self.GraphicsObject,
xAxis=(self.StartTick, self.StartTick + self.CurrentRange),
yAxis=(self.YCenter - Yrange * 1.1 / 2., self.YCenter + Yrange * 1.1 / 2.))
# Reset and draw cursor
self.ResetLastCursor()
self.RefreshCursor()
self.RefreshScrollBar()
self.Thaw()
def GetInstancePath(self):
return self.InstancePath
def IsViewing(self, tagname):
return self.InstancePath == tagname
def NewValue(self, tick, value, forced=False):
value = {True:1., False:0.}.get(value, float(value))
self.Datas.append((float(tick), value))
if self.MinValue is None:
self.MinValue = value
else:
self.MinValue = min(self.MinValue, value)
if self.MaxValue is None:
self.MaxValue = value
else:
self.MaxValue = max(self.MaxValue, value)
if not self.Fixed or tick < self.StartTick + self.CurrentRange:
self.GetBounds()
while int(self.Datas[self.StartIdx][0]) < tick - self.CurrentRange:
self.StartIdx += 1
self.EndIdx += 1
self.StartTick = self.Datas[self.StartIdx][0]
self.NewDataAvailable()
def RefreshScrollBar(self):
if len(self.Datas) > 0:
self.GetBounds()
pos = int(self.Datas[self.StartIdx][0] - self.Datas[0][0])
range = int(self.Datas[-1][0] - self.Datas[0][0])
else:
pos = 0
range = 0
self.CanvasPosition.SetScrollbar(pos, self.CurrentRange, range, self.CurrentRange)
def RefreshRange(self):
if len(self.Datas) > 0:
if self.Fixed and self.Datas[-1][0] - self.Datas[0][0] < self.CurrentRange:
self.Fixed = False
self.ResetBounds()
if self.Fixed:
self.StartTick = min(self.StartTick, self.Datas[-1][0] - self.CurrentRange)
else:
self.StartTick = max(self.Datas[0][0], self.Datas[-1][0] - self.CurrentRange)
self.RefreshView(True)
def OnRangeChanged(self, event):
try:
if self.Ticktime == 0:
self.CurrentRange = self.RangeValues[self.CanvasRange.GetSelection()][1]
else:
self.CurrentRange = self.RangeValues[self.CanvasRange.GetSelection()][1] / self.Ticktime
except ValueError, e:
self.CanvasRange.SetValue(str(self.CurrentRange))
wx.CallAfter(self.RefreshRange)
event.Skip()
def OnZoomChanged(self, event):
self.CurrentZoom = ZOOM_VALUES[self.CanvasZoom.GetSelection()][1]
wx.CallAfter(self.RefreshView, True)
event.Skip()
def OnPositionChanging(self, event):
if len(self.Datas) > 0:
self.ResetBounds()
self.StartTick = self.Datas[0][0] + event.GetPosition()
self.Fixed = True
self.NewDataAvailable(True)
event.Skip()
def OnResetButton(self, event):
self.Fixed = False
self.ResetView()
event.Skip()
def OnCurrentButton(self, event):
if len(self.Datas) > 0:
self.ResetBounds()
self.StartTick = max(self.Datas[0][0], self.Datas[-1][0] - self.CurrentRange)
self.Fixed = False
self.NewDataAvailable(True)
event.Skip()
def OnResetZoomOffsetButton(self, event):
if len(self.Datas) > 0:
self.YCenter = (self.MaxValue + self.MinValue) / 2
else:
self.YCenter = 0.0
self.CurrentZoom = 1.0
self.CanvasZoom.SetSelection(0)
wx.CallAfter(self.RefreshView, True)
event.Skip()
def OnExportGraphButtonClick(self, event):
data_copy = self.Datas[:]
text = "tick;%s;\n" % self.InstancePath
for tick, value in data_copy:
text += "%d;%.3f;\n" % (tick, value)
self.ParentWindow.SetCopyBuffer(text)
event.Skip()
def OnCanvasLeftDown(self, event):
self.Fixed = True
self.Canvas.canvas.CaptureMouse()
if len(self.Datas) > 0:
if self.Mode == MODE_SELECTION:
self.Dragging = True
pos = self.Canvas.PositionScreenToUser(event.GetPosition())
self.CursorIdx = self.GetNearestData(pos[0], -1)
self.RefreshCursor()
elif self.Mode == MODE_MOTION:
self.GetBounds()
self.CurrentMousePos = event.GetPosition()
self.CurrentMotionValue = self.Datas[self.StartIdx][0]
event.Skip()
def OnCanvasLeftUp(self, event):
self.Dragging = False
if self.Mode == MODE_MOTION:
self.CurrentMousePos = None
self.CurrentMotionValue = None
if self.Canvas.canvas.HasCapture():
self.Canvas.canvas.ReleaseMouse()
event.Skip()
def OnCanvasMiddleDown(self, event):
self.Fixed = True
self.Canvas.canvas.CaptureMouse()
if len(self.Datas) > 0:
self.GetBounds()
self.CurrentMousePos = event.GetPosition()
self.CurrentMotionValue = self.Datas[self.StartIdx][0]
event.Skip()
def OnCanvasMiddleUp(self, event):
self.CurrentMousePos = None
self.CurrentMotionValue = None
if self.Canvas.canvas.HasCapture():
self.Canvas.canvas.ReleaseMouse()
event.Skip()
def OnCanvasMotion(self, event):
if self.Mode == MODE_SELECTION and self.Dragging:
pos = self.Canvas.PositionScreenToUser(event.GetPosition())
graphics, xAxis, yAxis = self.Canvas.last_draw
self.CursorIdx = self.GetNearestData(max(xAxis[0], min(pos[0], xAxis[1])), -1)
self.RefreshCursor()
elif self.CurrentMousePos is not None and len(self.Datas) > 0:
oldpos = self.Canvas.PositionScreenToUser(self.CurrentMousePos)
newpos = self.Canvas.PositionScreenToUser(event.GetPosition())
self.CurrentMotionValue += oldpos[0] - newpos[0]
self.YCenter += oldpos[1] - newpos[1]
self.ResetBounds()
self.StartTick = max(self.Datas[0][0], min(self.CurrentMotionValue, self.Datas[-1][0] - self.CurrentRange))
self.CurrentMousePos = event.GetPosition()
self.NewDataAvailable(True)
event.Skip()
def OnCanvasMouseWheel(self, event):
if self.CurrentMousePos is None:
rotation = event.GetWheelRotation() / event.GetWheelDelta()
if event.ShiftDown():
current = self.CanvasRange.GetSelection()
new = max(0, min(current - rotation, len(self.RangeValues) - 1))
if new != current:
if self.Ticktime == 0:
self.CurrentRange = self.RangeValues[new][1]
else:
self.CurrentRange = self.RangeValues[new][1] / self.Ticktime
self.CanvasRange.SetStringSelection(self.RangeValues[new][0])
wx.CallAfter(self.RefreshRange)
else:
current = self.CanvasZoom.GetSelection()
new = max(0, min(current + rotation, len(ZOOM_VALUES) - 1))
if new != current:
self.CurrentZoom = ZOOM_VALUES[new][1]
self.CanvasZoom.SetStringSelection(ZOOM_VALUES[new][0])
wx.CallAfter(self.RefreshView, True)
event.Skip()
def OnCanvasResize(self, event):
self.ResetLastCursor()
wx.CallAfter(self.RefreshCursor)
event.Skip()
## Reset the last cursor
def ResetLastCursor(self):
self.LastCursor = None
## Draw the cursor on graphic
# @param dc The draw canvas
# @param cursor The cursor parameters
def DrawCursor(self, dc, cursor, value):
if self.StartTick <= cursor <= self.StartTick + self.CurrentRange:
# Prepare temporary dc for drawing
width = self.Canvas._Buffer.GetWidth()
height = self.Canvas._Buffer.GetHeight()
tmp_Buffer = wx.EmptyBitmap(width, height)
dcs = wx.MemoryDC()
dcs.SelectObject(tmp_Buffer)
dcs.Clear()
dcs.BeginDrawing()
dcs.SetPen(wx.Pen(wx.RED))
dcs.SetBrush(wx.Brush(wx.RED, wx.SOLID))
dcs.SetFont(self.Canvas._getFont(self.Canvas._fontSizeAxis))
# Calculate clipping region
graphics, xAxis, yAxis = self.Canvas.last_draw
p1 = numpy.array([xAxis[0], yAxis[0]])
p2 = numpy.array([xAxis[1], yAxis[1]])
cx, cy, cwidth, cheight = self.Canvas._point2ClientCoord(p1, p2)
px, py = self.Canvas.PositionUserToScreen((float(cursor), 0.))
# Draw line cross drawing for diaplaying time cursor
dcs.DrawLine(px, cy + 1, px, cy + cheight - 1)
lines = ("X:%d\nY:%f" % (cursor, value)).splitlines()
wtext = 0
for line in lines:
w, h = dcs.GetTextExtent(line)
wtext = max(wtext, w)
offset = 0
for line in lines:
# Draw time cursor date
dcs.DrawText(line, min(px + 3, cx + cwidth - wtext), cy + 3 + offset)
w, h = dcs.GetTextExtent(line)
offset += h
dcs.EndDrawing()
#this will erase if called twice
dc.Blit(0, 0, width, height, dcs, 0, 0, wx.EQUIV) #(NOT src) XOR dst
## Refresh the variable cursor.
# @param dc The draw canvas
def RefreshCursor(self, dc=None):
if self:
if dc is None:
dc = wx.BufferedDC(wx.ClientDC(self.Canvas.canvas), self.Canvas._Buffer)
# Erase previous time cursor if drawn
if self.LastCursor is not None:
self.DrawCursor(dc, *self.LastCursor)
# Draw new time cursor
if self.CursorIdx is not None:
self.LastCursor = self.Datas[self.CursorIdx]
self.DrawCursor(dc, *self.LastCursor)