1

#!/usr/bin/env python

     2

# -*- coding: utf-8 -*-

     3

     4

# This file is part of Beremiz, a Integrated Development Environment for

     5

# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.

     6

#

     7

# Copyright (C) 2012: Edouard TISSERANT and Laurent BESSARD

     8

#

     9

# See COPYING file for copyrights details.

    10

#

    11

# This program is free software; you can redistribute it and/or

    12

# modify it under the terms of the GNU General Public License

    13

# as published by the Free Software Foundation; either version 2

    14

# of the License, or (at your option) any later version.

    15

#

    16

# This program is distributed in the hope that it will be useful,

    17

# but WITHOUT ANY WARRANTY; without even the implied warranty of

    18

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    19

# GNU General Public License for more details.

    20

#

    21

# You should have received a copy of the GNU General Public License

    22

# along with this program; if not, write to the Free Software

    23

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

    24

    25

    26

from __future__ import absolute_import

    27

from types import TupleType

    28

import numpy

    29

    30

import wx

    31

import wx.lib.buttons

    32

    33

    34

# pylint: disable=wrong-import-position

    35

import matplotlib

    36

matplotlib.use('WX')   # noqa

    37

import matplotlib.pyplot

    38

    39

from editors.DebugViewer import DebugViewer

    40

from util.BitmapLibrary import GetBitmap

    41

    42

from controls.DebugVariablePanel.DebugVariableItem import DebugVariableItem

    43

from controls.DebugVariablePanel.DebugVariableTextViewer import DebugVariableTextViewer

    44

from controls.DebugVariablePanel.DebugVariableGraphicViewer import *

    45

    46

    47

MILLISECOND = 1000000        # Number of nanosecond in a millisecond

    48

SECOND = 1000 * MILLISECOND  # Number of nanosecond in a second

    49

MINUTE = 60 * SECOND         # Number of nanosecond in a minute

    50

HOUR = 60 * MINUTE           # Number of nanosecond in a hour

    51

DAY = 24 * HOUR              # Number of nanosecond in a day

    52

    53

# Scrollbar increment in pixel

    54

SCROLLBAR_UNIT = 10

    55

    56

    57

def compute_mask(x, y):

    58

    return [(xp if xp == yp else "*")

    59

            for xp, yp in zip(x, y)]

    60

    61

    62

def NextTick(variables):

    63

    next_tick = None

    64

    for _item, data in variables:

    65

        if len(data) == 0:

    66

            continue

    67

    68

        next_tick = (data[0][0]

    69

                     if next_tick is None

    70

                     else min(next_tick, data[0][0]))

    71

    72

    return next_tick

    73

    74

# -------------------------------------------------------------------------------

    75

#                    Debug Variable Graphic Panel Drop Target

    76

# -------------------------------------------------------------------------------

    77

    78

    79

class DebugVariableDropTarget(wx.TextDropTarget):

    80

    """

    81

    Class that implements a custom drop target class for Debug Variable Graphic

    82

    Panel

    83

    """

    84

    85

    def __init__(self, window):

    86

        """

    87

        Constructor

    88

        @param window: Reference to the Debug Variable Panel

    89

        """

    90

        wx.TextDropTarget.__init__(self)

    91

        self.ParentWindow = window

    92

    93

    def __del__(self):

    94

        """

    95

        Destructor

    96

        """

    97

        # Remove reference to Debug Variable Panel

    98

        self.ParentWindow = None

    99

   100

    def OnDragOver(self, x, y, d):

   101

        """

   102

        Function called when mouse is dragged over Drop Target

   103

        @param x: X coordinate of mouse pointer

   104

        @param y: Y coordinate of mouse pointer

   105

        @param d: Suggested default for return value

   106

        """

   107

        # Signal Debug Variable Panel to refresh highlight giving mouse position

   108

        self.ParentWindow.RefreshHighlight(x, y)

   109

        return wx.TextDropTarget.OnDragOver(self, x, y, d)

   110

   111

    def OnDropText(self, x, y, data):

   112

        """

   113

        Function called when mouse is released in Drop Target

   114

        @param x: X coordinate of mouse pointer

   115

        @param y: Y coordinate of mouse pointer

   116

        @param data: Text associated to drag'n drop

   117

        """

   118

        # Signal Debug Variable Panel to reset highlight

   119

        self.ParentWindow.ResetHighlight()

   120

   121

        message = None

   122

   123

        # Check that data is valid regarding DebugVariablePanel

   124

        try:

   125

            values = eval(data)

   126

            if not isinstance(values, TupleType):

   127

                raise ValueError

   128

        except Exception:

   129

            message = _("Invalid value \"%s\" for debug variable") % data

   130

            values = None

   131

   132

        # Display message if data is invalid

   133

        if message is not None:

   134

            wx.CallAfter(self.ShowMessage, message)

   135

   136

        # Data contain a reference to a variable to debug

   137

        elif values[1] == "debug":

   138

   139

            # Drag'n Drop is an internal is an internal move inside Debug

   140

            # Variable Panel

   141

            if len(values) > 2 and values[2] == "move":

   142

                self.ParentWindow.MoveValue(values[0])

   143

   144

            # Drag'n Drop was initiated by another control of Beremiz

   145

            else:

   146

                self.ParentWindow.InsertValue(values[0], force=True)

   147

   148

    def OnLeave(self):

   149

        """

   150

        Function called when mouse is leave Drop Target

   151

        """

   152

        # Signal Debug Variable Panel to reset highlight

   153

        self.ParentWindow.ResetHighlight()

   154

        return wx.TextDropTarget.OnLeave(self)

   155

   156

    def ShowMessage(self, message):

   157

        """

   158

        Show error message in Error Dialog

   159

        @param message: Error message to display

   160

        """

   161

        dialog = wx.MessageDialog(self.ParentWindow,

   162

                                  message,

   163

                                  _("Error"),

   164

                                  wx.OK | wx.ICON_ERROR)

   165

        dialog.ShowModal()

   166

        dialog.Destroy()

   167

   168

   169

class DebugVariablePanel(wx.Panel, DebugViewer):

   170

    """

   171

    Class that implements a Viewer that display variable values as a graphs

   172

    """

   173

   174

    def __init__(self, parent, producer, window):

   175

        """

   176

        Constructor

   177

        @param parent: Reference to the parent wx.Window

   178

        @param producer: Object receiving debug value and dispatching them to

   179

        consumers

   180

        @param window: Reference to Beremiz frame

   181

        """

   182

        wx.Panel.__init__(self, parent, style=wx.SP_3D | wx.TAB_TRAVERSAL)

   183

   184

        # List of values possible for graph range

   185

        # Format is [(time_in_plain_text, value_in_nanosecond),...]

   186

        self.RANGE_VALUES = [(_("%dms") % i, i * MILLISECOND) for i in (10, 20, 50, 100, 200, 500)] + \

   187

                            [(_("%ds") % i, i * SECOND) for i in (1, 2, 5, 10, 20, 30)] + \

   188

                            [(_("%dm") % i, i * MINUTE) for i in (1, 2, 5, 10, 20, 30)] + \

   189

                            [(_("%dh") % i, i * HOUR) for i in (1, 2, 3, 6, 12, 24)]

   190

   191

        # Save Reference to Beremiz frame

   192

        self.ParentWindow = window

   193

   194

        # Variable storing flag indicating that variable displayed in table

   195

        # received new value and then table need to be refreshed

   196

        self.HasNewData = False

   197

   198

        # Variable storing flag indicating that refresh has been forced, and

   199

        # that next time refresh is possible, it will be done even if no new

   200

        # data is available

   201

        self.Force = False

   202

   203

        self.SetBackgroundColour(wx.WHITE)

   204

   205

        main_sizer = wx.BoxSizer(wx.VERTICAL)

   206

   207

        self.Ticks = numpy.array([])  # List of tick received

   208

        self.StartTick = 0            # Tick starting range of data displayed

   209

        self.Fixed = False            # Flag that range of data is fixed

   210

        self.CursorTick = None        # Tick of cursor for displaying values

   211

   212

        self.DraggingAxesPanel = None

   213

        self.DraggingAxesBoundingBox = None

   214

        self.DraggingAxesMousePos = None

   215

        self.VetoScrollEvent = False

   216

   217

        self.VariableNameMask = []

   218

   219

        self.GraphicPanels = []

   220

   221

        graphics_button_sizer = wx.BoxSizer(wx.HORIZONTAL)

   222

        main_sizer.AddSizer(graphics_button_sizer, border=5, flag=wx.GROW | wx.ALL)

   223

   224

        range_label = wx.StaticText(self, label=_('Range:'))

   225

        graphics_button_sizer.AddWindow(range_label, flag=wx.ALIGN_CENTER_VERTICAL)

   226

   227

        self.CanvasRange = wx.ComboBox(self, style=wx.CB_READONLY)

   228

        self.Bind(wx.EVT_COMBOBOX, self.OnRangeChanged, self.CanvasRange)

   229

        graphics_button_sizer.AddWindow(self.CanvasRange, 1,

   230

                                        border=5,

   231

                                        flag=wx.LEFT | wx.ALIGN_CENTER_VERTICAL)

   232

   233

        self.CanvasRange.Clear()

   234

        default_range_idx = 0

   235

        for idx, (text, _value) in enumerate(self.RANGE_VALUES):

   236

            self.CanvasRange.Append(text)

   237

            if _value == 1000000000:

   238

                default_range_idx = idx

   239

        self.CanvasRange.SetSelection(default_range_idx)

   240

   241

        for name, bitmap, help in [

   242

                ("CurrentButton",     "current",      _("Go to current value")),

   243

                ("ExportGraphButton", "export_graph", _("Export graph values to clipboard"))]:

   244

            button = wx.lib.buttons.GenBitmapButton(

   245

                self, bitmap=GetBitmap(bitmap),

   246

                size=wx.Size(28, 28), style=wx.NO_BORDER)

   247

            button.SetToolTipString(help)

   248

            setattr(self, name, button)

   249

            self.Bind(wx.EVT_BUTTON, getattr(self, "On" + name), button)

   250

            graphics_button_sizer.AddWindow(button, border=5, flag=wx.LEFT)

   251

   252

        self.CanvasPosition = wx.ScrollBar(

   253

            self, size=wx.Size(0, 16), style=wx.SB_HORIZONTAL)

   254

        self.CanvasPosition.Bind(wx.EVT_SCROLL_THUMBTRACK,

   255

                                 self.OnPositionChanging, self.CanvasPosition)

   256

        self.CanvasPosition.Bind(wx.EVT_SCROLL_LINEUP,

   257

                                 self.OnPositionChanging, self.CanvasPosition)

   258

        self.CanvasPosition.Bind(wx.EVT_SCROLL_LINEDOWN,

   259

                                 self.OnPositionChanging, self.CanvasPosition)

   260

        self.CanvasPosition.Bind(wx.EVT_SCROLL_PAGEUP,

   261

                                 self.OnPositionChanging, self.CanvasPosition)

   262

        self.CanvasPosition.Bind(wx.EVT_SCROLL_PAGEDOWN,

   263

                                 self.OnPositionChanging, self.CanvasPosition)

   264

        main_sizer.AddWindow(self.CanvasPosition, border=5, flag=wx.GROW | wx.LEFT | wx.RIGHT | wx.BOTTOM)

   265

   266

        self.TickSizer = wx.BoxSizer(wx.HORIZONTAL)

   267

        main_sizer.AddSizer(self.TickSizer, border=5, flag=wx.ALL | wx.GROW)

   268

   269

        self.TickLabel = wx.StaticText(self)

   270

        self.TickSizer.AddWindow(self.TickLabel, border=5, flag=wx.RIGHT)

   271

   272

        self.MaskLabel = wx.TextCtrl(self, style=wx.TE_READONLY | wx.TE_CENTER | wx.NO_BORDER)

   273

        self.TickSizer.AddWindow(self.MaskLabel, 1, border=5, flag=wx.RIGHT | wx.GROW)

   274

   275

        self.TickTimeLabel = wx.StaticText(self)

   276

        self.TickSizer.AddWindow(self.TickTimeLabel)

   277

   278

        self.GraphicsWindow = wx.ScrolledWindow(self, style=wx.HSCROLL | wx.VSCROLL)

   279

        self.GraphicsWindow.SetBackgroundColour(wx.WHITE)

   280

        self.GraphicsWindow.SetDropTarget(DebugVariableDropTarget(self))

   281

        self.GraphicsWindow.Bind(wx.EVT_ERASE_BACKGROUND, self.OnGraphicsWindowEraseBackground)

   282

        self.GraphicsWindow.Bind(wx.EVT_PAINT, self.OnGraphicsWindowPaint)

   283

        self.GraphicsWindow.Bind(wx.EVT_SIZE, self.OnGraphicsWindowResize)

   284

        self.GraphicsWindow.Bind(wx.EVT_MOUSEWHEEL, self.OnGraphicsWindowMouseWheel)

   285

   286

        main_sizer.AddWindow(self.GraphicsWindow, 1, flag=wx.GROW)

   287

   288

        self.GraphicsSizer = wx.BoxSizer(wx.VERTICAL)

   289

        self.GraphicsWindow.SetSizer(self.GraphicsSizer)

   290

   291

        DebugViewer.__init__(self, producer, True)

   292

   293

        self.SetSizer(main_sizer)

   294

        self.SetTickTime()

   295

   296

    def SetTickTime(self, ticktime=0):

   297

        """

   298

        Set Ticktime for calculate data range according to time range selected

   299

        @param ticktime: Ticktime to apply to range (default: 0)

   300

        """

   301

        # Save ticktime

   302

        self.Ticktime = ticktime

   303

   304

        # Set ticktime to millisecond if undefined

   305

        if self.Ticktime == 0:

   306

            self.Ticktime = MILLISECOND

   307

   308

        # Calculate range to apply to data

   309

        self.CurrentRange = self.RANGE_VALUES[

   310

            self.CanvasRange.GetSelection()][1] / self.Ticktime

   311

   312

    def SetDataProducer(self, producer):

   313

        """

   314

        Set Data Producer

   315

        @param producer: Data Producer

   316

        """

   317

        DebugViewer.SetDataProducer(self, producer)

   318

   319

        # Set ticktime if data producer is available

   320

        if self.DataProducer is not None:

   321

            self.SetTickTime(self.DataProducer.GetTicktime())

   322

   323

    def RefreshNewData(self):

   324

        """

   325

        Called to refresh Panel according to values received by variables

   326

        Can receive any parameters (not used here)

   327

        """

   328

        # Refresh graphs if new data is available or refresh is forced

   329

        if self.HasNewData or self.Force:

   330

            self.HasNewData = False

   331

            self.RefreshView()

   332

   333

        DebugViewer.RefreshNewData(self)

   334

   335

    def NewDataAvailable(self, ticks):

   336

        """

   337

        Called by DataProducer for each tick captured or by panel to refresh

   338

        graphs

   339

        @param tick: PLC tick captured

   340

        All other parameters are passed to refresh function

   341

        """

   342

        # If tick given

   343

        if ticks is not None:

   344

            tick = ticks[-1]

   345

   346

            # Save tick as start tick for range if data is still empty

   347

            if len(self.Ticks) == 0:

   348

                self.StartTick = ticks[0]

   349

   350

            # Add tick to list of ticks received

   351

            self.Ticks = numpy.append(self.Ticks, ticks)

   352

   353

            # Update start tick for range if range follow ticks received

   354

            if not self.Fixed or tick < self.StartTick + self.CurrentRange:

   355

                self.StartTick = max(self.StartTick, tick - self.CurrentRange)

   356

   357

            # Force refresh if graph is fixed because range of data received

   358

            # is too small to fill data range selected

   359

            if self.Fixed and \

   360

               self.Ticks[-1] - self.Ticks[0] < self.CurrentRange:

   361

                self.Force = True

   362

   363

            self.HasNewData = False

   364

            self.RefreshView()

   365

   366

        else:

   367

            DebugViewer.NewDataAvailable(self, ticks)

   368

   369

    def ForceRefresh(self):

   370

        """

   371

        Called to force refresh of graphs

   372

        """

   373

        self.Force = True

   374

        wx.CallAfter(self.NewDataAvailable, None)

   375

   376

    def SetCursorTick(self, cursor_tick):

   377

        """

   378

        Set Cursor for displaying values of items at a tick given

   379

        @param cursor_tick: Tick of cursor

   380

        """

   381

        # Save cursor tick

   382

        self.CursorTick = cursor_tick

   383

        self.Fixed = cursor_tick is not None

   384

        self.UpdateCursorTick()

   385

   386

    def MoveCursorTick(self, move):

   387

        if self.CursorTick is not None:

   388

            cursor_tick = max(self.Ticks[0],

   389

                              min(self.CursorTick + move, self.Ticks[-1]))

   390

            cursor_tick_idx = numpy.argmin(numpy.abs(self.Ticks - cursor_tick))

   391

            if self.Ticks[cursor_tick_idx] == self.CursorTick:

   392

                cursor_tick_idx = max(0,

   393

                                      min(cursor_tick_idx + abs(move) / move,

   394

                                          len(self.Ticks) - 1))

   395

            self.CursorTick = self.Ticks[cursor_tick_idx]

   396

            self.StartTick = max(

   397

                self.Ticks[numpy.argmin(

   398

                    numpy.abs(self.Ticks - self.CursorTick + self.CurrentRange))],

   399

                min(self.StartTick, self.CursorTick))

   400

            self.RefreshCanvasPosition()

   401

            self.UpdateCursorTick()

   402

   403

    def ResetCursorTick(self):

   404

        self.CursorTick = None

   405

        self.Fixed = False

   406

        self.UpdateCursorTick()

   407

   408

    def UpdateCursorTick(self):

   409

        for panel in self.GraphicPanels:

   410

            if isinstance(panel, DebugVariableGraphicViewer):

   411

                panel.SetCursorTick(self.CursorTick)

   412

        self.ForceRefresh()

   413

   414

    def StartDragNDrop(self, panel, item, x_mouse, y_mouse, x_mouse_start, y_mouse_start):

   415

        if len(panel.GetItems()) > 1:

   416

            self.DraggingAxesPanel = DebugVariableGraphicViewer(self.GraphicsWindow, self, [item], GRAPH_PARALLEL)

   417

            self.DraggingAxesPanel.SetCursorTick(self.CursorTick)

   418

            width, height = panel.GetSize()

   419

            self.DraggingAxesPanel.SetSize(wx.Size(width, height))

   420

            self.DraggingAxesPanel.ResetGraphics()

   421

            self.DraggingAxesPanel.SetPosition(wx.Point(0, -height))

   422

        else:

   423

            self.DraggingAxesPanel = panel

   424

        self.DraggingAxesBoundingBox = panel.GetAxesBoundingBox(parent_coordinate=True)

   425

        self.DraggingAxesMousePos = wx.Point(

   426

            x_mouse_start - self.DraggingAxesBoundingBox.x,

   427

            y_mouse_start - self.DraggingAxesBoundingBox.y)

   428

        self.MoveDragNDrop(x_mouse, y_mouse)

   429

   430

    def MoveDragNDrop(self, x_mouse, y_mouse):

   431

        self.DraggingAxesBoundingBox.x = x_mouse - self.DraggingAxesMousePos.x

   432

        self.DraggingAxesBoundingBox.y = y_mouse - self.DraggingAxesMousePos.y

   433

        self.RefreshHighlight(x_mouse, y_mouse)

   434

   435

    def RefreshHighlight(self, x_mouse, y_mouse):

   436

        for idx, panel in enumerate(self.GraphicPanels):

   437

            x, y = panel.GetPosition()

   438

            width, height = panel.GetSize()

   439

            rect = wx.Rect(x, y, width, height)

   440

            if rect.InsideXY(x_mouse, y_mouse) or \

   441

               idx == 0 and y_mouse < 0 or \

   442

               idx == len(self.GraphicPanels) - 1 and y_mouse > panel.GetPosition()[1]:

   443

                panel.RefreshHighlight(x_mouse - x, y_mouse - y)

   444

            else:

   445

                panel.SetHighlight(HIGHLIGHT_NONE)

   446

        if wx.Platform == "__WXMSW__":

   447

            self.RefreshView()

   448

        else:

   449

            self.ForceRefresh()

   450

   451

    def ResetHighlight(self):

   452

        for panel in self.GraphicPanels:

   453

            panel.SetHighlight(HIGHLIGHT_NONE)

   454

        if wx.Platform == "__WXMSW__":

   455

            self.RefreshView()

   456

        else:

   457

            self.ForceRefresh()

   458

   459

    def IsDragging(self):

   460

        return self.DraggingAxesPanel is not None

   461

   462

    def GetDraggingAxesClippingRegion(self, panel):

   463

        x, y = panel.GetPosition()

   464

        width, height = panel.GetSize()

   465

        bbox = wx.Rect(x, y, width, height)

   466

        bbox = bbox.Intersect(self.DraggingAxesBoundingBox)

   467

        bbox.x -= x

   468

        bbox.y -= y

   469

        return bbox

   470

   471

    def GetDraggingAxesPosition(self, panel):

   472

        x, y = panel.GetPosition()

   473

        return wx.Point(self.DraggingAxesBoundingBox.x - x,

   474

                        self.DraggingAxesBoundingBox.y - y)

   475

   476

    def StopDragNDrop(self, variable, x_mouse, y_mouse):

   477

        if self.DraggingAxesPanel not in self.GraphicPanels:

   478

            self.DraggingAxesPanel.Destroy()

   479

        self.DraggingAxesPanel = None