code/tablet-capplet

   1 #!/usr/bin/env python
   2 ############################################################################
   3 ##
   4 ## Copyright (C), all rights reserved:
   5 ##      2007-2009 Alexander Macdonald
   6 ##      2008 Juho Vepsalainen
   7 ##      2009 Thomas Iorns <yobbobandana@yahoo.co.nz>
   8 ##
   9 ## This program is free software; you can redistribute it and/or
  10 ## modify it under the terms of the GNU General Public License version 2
  11 ##
  12 ## Graphics Tablet Applet
  13 ##
  14 ############################################################################
  15
  16 import pygtk
  17 pygtk.require('2.0')
  18 import gtk
  19 import gtk.glade
  20 import gobject
  21 import cairo
  22 import sys
  23 import os
  24 import subprocess
  25 import math
  26
  27 bool_options = [
  28     "TPCButton",
  29     ]
  30
  31 int_options = [
  32     "Mode",
  33     "ToolID",
  34     "ClickForce",
  35     ]
  36
  37 def xswGetDefault(devicename, propertyname, *args):
  38     ''' Get the default value for some option using xsetwacom.
  39     '''
  40     try:
  41         cmd = ['xsetwacom']
  42         cmd.extend(args)
  43         cmd.extend(['getdefault', devicename, propertyname])
  44         p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
  45         output = p.communicate()[0]
  46         return output.strip()
  47     except:
  48         return None
  49
  50 def xswGet(devicename, propertyname, *args):
  51     ''' Get the current value for some option using xsetwacom.
  52     '''
  53     try:
  54         cmd = ['xsetwacom']
  55         cmd.extend(args)
  56         cmd.extend(['get', devicename, propertyname])
  57         p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
  58         output = p.communicate()[0].strip()
  59         if not output:
  60             return None
  61         if propertyname in bool_options:
  62             return bool(int(output))
  63         elif propertyname in int_options:
  64             return int(output)
  65         return output
  66     except:
  67         return None
  68
  69 def xswSet(devicename, propertyname, value, *args):
  70     ''' Set an option using xsetwacom.
  71     '''
  72     try:
  73         if value is True:
  74             value = "on"
  75         elif value is False:
  76             value = "off"
  77         elif value is None:
  78             value = xswGetDefault(devicename, propertyname)
  79         cmd = ['xsetwacom']
  80         cmd.extend(args)
  81         cmd.extend(['set', devicename, propertyname, str(value)])
  82         p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
  83         output = p.communicate()[0]
  84         return output.strip()
  85     except:
  86         return None
  87
  88 def GetPressCurve(devicename):
  89     ''' Get the pressure curve of a device using xsetwacom
  90     '''
  91     try:
  92         output = subprocess.Popen(["xsetwacom", "-x", "get", devicename, "PressCurve"], stdout=subprocess.PIPE).communicate()[0]
  93         bits = output.split()
  94         if bits[1] == "\"PressCurve\"":
  95             return [float(x) for x in bits[2].strip("\"").split(",")]
  96     except:
  97         return None
  98
  99 def SetPressCurve(devicename, points):
 100     ''' Set the pressure curve of a device using xsetwacom
 101     '''
 102     try:
 103         output = subprocess.Popen(["xsetwacom", "set", devicename, "PressCurve", str(points[0]), str(points[1]), str(points[2]), str(points[3])])
 104     except:
 105         return None
 106
 107 def GetClickForce(devicename):
 108     ''' Get the ClickForce of a device using xsetwacom.
 109         Values are in the range 1 - 21.
 110     '''
 111     return xswGet(devicename, "ClickForce")
 112
 113 def SetClickForce(devicename, force):
 114     ''' Set the ClickForce of a device using xsetwacom.
 115         Values are in the range 1 - 21.
 116     '''
 117     if force == None:
 118         force = xswGetDefault(devicename, "ClickForce")
 119     elif force > 21:
 120         force = 21
 121     elif force < 1:
 122         force = 1
 123
 124     return xswSet(devicename, "ClickForce", force)
 125
 126 def GetMode(devicename):
 127     ''' Get the device Mode using xsetwacom.
 128     '''
 129     try:
 130         output = subprocess.Popen(["xsetwacom", "get", devicename, "Mode"], stdout=subprocess.PIPE).communicate()[0]
 131         return int(output.strip())
 132     except:
 133         return None
 134
 135 def SetMode(devicename, m):
 136     ''' Set the device Mode using xsetwacom.
 137     '''
 138     try:
 139         output = subprocess.Popen(["xsetwacom", "set", devicename, "Mode", str(m)])
 140         return int(output.strip())
 141     except:
 142         return None
 143
 144 class PressureCurveWidget(gtk.DrawingArea):
 145     ''' A widget for displaying and modifying the pressure curve (PressCurve)
 146         for a wacom-compatible drawing tablet. The curve may be
 147         modified by dragging the control point.
 148     '''
 149     def __init__(self):
 150
 151         gtk.DrawingArea.__init__(self)
 152
 153         self.Pressure = 0.0
 154         self.CP = None
 155         self.ClickForceLine = None
 156
 157         self.Radius = 5.0
 158         self.ControlPointStroke = 2.0
 159         self.ControlPointDiameter = (self.Radius * 2) + self.ControlPointStroke
 160         self.WindowSize = None
 161         self.Scale = None
 162
 163         self.DeviceName = ""
 164
 165         self.DraggingCP = False
 166         self.DraggingCF = False
 167
 168         self.set_events(gtk.gdk.POINTER_MOTION_MASK  | gtk.gdk.BUTTON_MOTION_MASK | gtk.gdk.BUTTON1_MOTION_MASK | gtk.gdk.BUTTON2_MOTION_MASK | gtk.gdk.BUTTON3_MOTION_MASK | gtk.gdk.BUTTON_PRESS_MASK | gtk.gdk.BUTTON_RELEASE_MASK)
 169
 170         self.connect("configure-event", self.ConfigureEvent)
 171         self.connect("expose-event", self.ExposeEvent)
 172         self.connect("motion-notify-event", self.MotionEvent)
 173         self.connect("button-press-event", self.ButtonPress)
 174         self.connect("button-release-event", self.ButtonRelease)
 175         self.set_size_request(100,100)
 176
 177     def GetPoints(self):
 178         ''' Return the control points as xsetwacom would like them.
 179         '''
 180         if not self.CP:
 181             return None
 182         points = []
 183         points.append(int(self.ClampValue(self.CP[0]) * 100.0))
 184         points.append(int(self.ClampValue(1.0 - self.CP[1]) * 100.0))
 185         points.append(100 - points[1])
 186         points.append(100 - points[0])
 187         return points
 188
 189     def SetDevice(self, name):
 190         ''' Change or refresh the current device.
 191         '''
 192         self.DeviceName = name
 193         cf = GetClickForce(name)
 194
 195         if cf == None:
 196             self.ClickForceLine = None
 197         else:
 198             self.ClickForceLine = self.ClampValue((cf - 1) / 20.0)
 199
 200         points = GetPressCurve(name)
 201         if points == None:
 202             self.CP = None
 203         else:
 204             self.CP = [points[0] / 100.0, 1.0 - (points[1] / 100.0)]
 205             self.Pressure = 0.0
 206
 207         self.Update()
 208
 209     def Update(self):
 210         self.queue_draw()
 211
 212     def ClampValue(self, v):
 213         ''' Make sure v is between 0.0 and 1.0 inclusive.
 214         '''
 215         if v < 0.0:
 216             return 0.0
 217         elif v > 1.0:
 218             return 1.0
 219         else:
 220             return v
 221
 222     def ConfigureEvent(self, widget, event):
 223         ''' Handle widget resize.
 224         '''
 225         self.WindowSize = self.window.get_size()
 226         xscale = self.WindowSize[0] - self.ControlPointDiameter
 227         yscale = self.WindowSize[1] - self.ControlPointDiameter
 228         self.Scale = (xscale, yscale)
 229
 230     def MotionEvent(self, widget, event):
 231         ''' Handle motion notify events.
 232         '''
 233         pos = event.get_coords()
 234         pos = (pos[0] / self.Scale[0], pos[1] / self.Scale[1])
 235
 236         if self.CP == None:
 237             return
 238
 239         if self.DraggingCP:
 240             self.CP[0] = self.ClampValue(pos[0])
 241             self.CP[1] = self.ClampValue(pos[1])
 242             self.Update()
 243
 244         elif self.DraggingCF:
 245             cf = int(pos[0] * 20)
 246             self.ClickForceLine = self.ClampValue(cf / 20.0)
 247
 248     def ButtonPress(self, widget, event):
 249         ''' Handle button press events.
 250         '''
 251         if self.CP == None:
 252             return
 253
 254         if self.DraggingCP or self.DraggingCF:
 255             self.DragFinished()
 256         else:
 257             pos = event.get_coords()
 258             pos = (pos[0] / self.Scale[0], pos[1] / self.Scale[1])
 259
 260             dx = abs(pos[0] - self.CP[0]) * self.Scale[0]
 261             dy = abs(pos[1] - self.CP[1]) * self.Scale[1]
 262
 263             if dx < self.ControlPointDiameter and dy < self.ControlPointDiameter:
 264                 self.DraggingCP = True
 265                 return
 266
 267             if self.ClickForceLine == None:
 268                 return
 269
 270             dx = abs(pos[0] - self.ClickForceLine) * self.Scale[0]
 271
 272             if dx < self.ControlPointDiameter:
 273                 self.DraggingCF = True
 274                 return
 275
 276     def ButtonRelease(self, widget, event):
 277         ''' Handle button release events.
 278         '''
 279         self.DragFinished()
 280         self.Update()
 281
 282     def DragFinished(self):
 283         ''' Clean up after finished drag.
 284         '''
 285         self.DraggingCP = False
 286         self.DraggingCF = False
 287
 288         if self.ClickForceLine != None:
 289             SetClickForce(self.DeviceName, int(self.ClickForceLine * 20.0) + 1)
 290
 291         points = self.GetPoints()
 292         if points != None:
 293             SetPressCurve(self.DeviceName, points)
 294
 295     def DrawGrid(self, cr):
 296         ''' Draw a 10 by 10 grid.
 297         '''
 298         cr.set_line_width(0.5)
 299         cr.set_source_rgba(0.0, 0.0, 0.0, 0.25)
 300         cr.save()
 301         cr.scale(self.Scale[0], self.Scale[1])
 302         cr.new_path()
 303         for x in range(11):
 304             cr.move_to(x * 0.1, 0.0)
 305             cr.line_to(x * 0.1, 1.0)
 306         for y in range(11):
 307             cr.move_to(0.0, y * 0.1)
 308             cr.line_to(1.0, y * 0.1)
 309         cr.restore()
 310         cr.stroke()
 311
 312     def DrawLinear(self, cr):
 313         ''' Draw a line to indicate the default (linear) pressure curve.
 314         '''
 315         cr.set_line_width(1.0)
 316         cr.save()
 317         cr.scale(self.Scale[0], self.Scale[1])
 318         cr.new_path()
 319         cr.move_to(0.0, 1.0)
 320         cr.line_to(1.0, 0.0)
 321         cr.restore()
 322         cr.stroke()
 323
 324     def DrawClickForce(self, cr):
 325         ''' Draw a vertical line indicating the current click force.
 326         '''
 327         if self.ClickForceLine == None:
 328             return
 329         cr.set_line_width(1.0)
 330         cr.set_source_rgba(1.0, 0.0, 0.0, 0.25)
 331         cr.save()
 332         cr.scale(self.Scale[0], self.Scale[1])
 333         cr.new_path()
 334         cr.move_to(self.ClickForceLine, 0.0)
 335         cr.line_to(self.ClickForceLine, 1.0)
 336         cr.restore()
 337         cr.stroke()
 338
 339     def DrawPressure(self, cr, x0, y0, x1, y1, click=True):
 340         ''' Draw the current pressure.
 341         '''
 342         if not self.Pressure:
 343             return
 344         pmin = 0.0
 345         if self.ClickForceLine != None:
 346             pmin = self.ClickForceLine * 20 / 100.0
 347
 348         cr.save()
 349         cr.scale(self.Scale[0], self.Scale[1])
 350         cr.rectangle(0.0, 0.0, self.Pressure, 1.0)
 351         cr.clip()
 352         cr.new_path()
 353         if self.Pressure >= pmin:
 354             cr.set_source_rgba(114.0 / 255.0, 159.0 / 255.0, 207.0 / 255.0, 0.5)
 355         else:
 356             cr.set_source_rgba(207.0 / 255.0, 114.0 / 255.0, 114.0 / 255.0, 0.5)
 357         cr.move_to(0.0,1.0)
 358         cr.curve_to(x0, y0, x1, y1, 1.0, 0.0)
 359         cr.line_to(1.0, 1.0)
 360         cr.fill()
 361         cr.restore()
 362
 363     def DrawPressureCurve(self, cr, x0, y0, x1, y1):
 364         ''' Draw the active pressure curve.
 365         '''
 366         cr.set_line_width(2.0)
 367         cr.set_source_rgba(32.0 / 255.0, 74.0 / 255.0, 135.0 / 255.0, 1.0)
 368         cr.save()
 369         cr.scale(self.Scale[0], self.Scale[1])
 370         cr.new_path()
 371         cr.move_to(0.0, 1.0)
 372         cr.curve_to(x0, y0, x1, y1, 1.0, 0.0)
 373         cr.restore()
 374         cr.stroke()
 375
 376     def ExposeEvent(self, widget, event):
 377         ''' Draw the widget.
 378         '''
 379         cr = widget.window.cairo_create()
 380         cr.set_line_cap(cairo.LINE_CAP_ROUND);
 381
 382         cr.save()
 383         cr.translate(self.ControlPointDiameter / 2.0, self.ControlPointDiameter / 2.0)
 384
 385         self.DrawGrid(cr)
 386
 387         if self.Pressure == None:
 388             cr.restore()
 389             return
 390
 391         self.DrawLinear(cr)
 392
 393         x0 = 0.0
 394         y0 = 1.0
 395         x1 = 1.0
 396         y1 = 0.0
 397
 398         if self.CP:
 399             x0 = self.CP[0]
 400             y0 = self.CP[1]
 401             x1 = self.CP[1]
 402             y1 = self.CP[0]
 403
 404         self.DrawPressure(cr, x0, y0, x1, y1)
 405         self.DrawPressureCurve(cr, x0, y0, x1, y1)
 406
 407
 408         if self.CP == None:
 409             cr.restore()
 410             return
 411
 412         cr.set_line_width(2.0)
 413         cr.set_source_rgba(0.0, 0.0, 0.0, 0.5)
 414
 415         cr.save()
 416         cr.scale(self.Scale[0], self.Scale[1])
 417         cr.move_to(0.0, 1.0)
 418         cr.line_to(x0, y0)
 419         cr.restore()
 420
 421         cr.stroke()
 422
 423         # Control Points
 424         cr.set_line_width(2.0)
 425
 426         cr.save()
 427         cr.arc(x0 * self.Scale[0], y0 * self.Scale[1], self.Radius, 0.0, 2.0 * math.pi);
 428         cr.set_source_rgba(237.0 / 255.0, 212.0 / 255.0, 0.0, 0.5)
 429         cr.fill_preserve()
 430         cr.set_source_rgba(239.0 / 255.0, 41.0 / 255.0, 41.0 / 255.0, 1.0)
 431         cr.stroke()
 432         cr.restore()
 433
 434         cr.restore()
 435
 436 class DrawingTestWidget(gtk.DrawingArea):
 437     ''' A widget for testing the pressure sensitivity of an input device.
 438     '''
 439     def __init__(self):
 440
 441         gtk.DrawingArea.__init__(self)
 442
 443         self.Device = 0
 444         self.Radius = 5.0
 445         self.Drawing = False
 446         self.WindowSize = None
 447         self.Raster = None
 448         self.RasterCr = None
 449
 450         self.set_events(gtk.gdk.POINTER_MOTION_MASK  | gtk.gdk.BUTTON_MOTION_MASK | gtk.gdk.BUTTON1_MOTION_MASK | gtk.gdk.BUTTON2_MOTION_MASK | gtk.gdk.BUTTON3_MOTION_MASK | gtk.gdk.BUTTON_PRESS_MASK | gtk.gdk.BUTTON_RELEASE_MASK)
 451         self.set_extension_events(gtk.gdk.EXTENSION_EVENTS_ALL)
 452
 453         self.connect("configure-event", self.ConfigureEvent)
 454         self.connect("expose-event", self.ExposeEvent)
 455         self.connect("motion-notify-event", self.MotionEvent)
 456         self.connect("button-press-event", self.ButtonPress)
 457         self.connect("button-release-event", self.ButtonRelease)
 458         self.set_size_request(100,100)
 459
 460     def ConfigureEvent(self, widget, event):
 461         ''' Handle widget resize.
 462         '''
 463         self.WindowSize = self.window.get_size()
 464         self.Raster = self.window.cairo_create().get_target().create_similar(cairo.CONTENT_COLOR, self.WindowSize[0], self.WindowSize[1])
 465         self.RasterCr = cairo.Context(self.Raster)
 466         self.RasterCr.set_source_rgba(1.0, 1.0, 1.0, 1.0)
 467         self.RasterCr.rectangle(0.0, 0.0, self.WindowSize[0], self.WindowSize[1])
 468         self.RasterCr.fill()
 469
 470     def GetPressure(self):
 471         ''' Return the current device pressure.
 472         '''
 473         dev = gtk.gdk.devices_list()[self.Device]
 474         state = dev.get_state(self.window)
 475         return dev.get_axis(state[0], gtk.gdk.AXIS_PRESSURE)
 476
 477     def MotionEvent(self, widget, event):
 478         ''' Handle motion events.
 479         '''
 480         if self.Drawing:
 481             pos = event.get_coords()
 482             p = self.GetPressure()
 483             if p == None:
 484                 p = 0.0
 485             r =  p * 50 + 5
 486             self.RasterCr.set_line_width(2)
 487             self.RasterCr.set_source_rgba(p, 1.0, 0.0, 0.5)
 488             if p:
 489                 self.RasterCr.arc(pos[0], pos[1],r, 0.0, 2 * math.pi);
 490             else:
 491                 # draw something to indicate no pressure
 492                 self.RasterCr.move_to(pos[0] - 4, pos[1] - 4)
 493                 self.RasterCr.line_to(pos[0] + 4, pos[1] + 4)
 494                 self.RasterCr.move_to(pos[0] - 4, pos[1] + 4)
 495                 self.RasterCr.line_to(pos[0] + 4, pos[1] - 4)
 496
 497             self.RasterCr.fill_preserve()
 498             self.RasterCr.set_source_rgba(0.5, 0.2, p, 0.5)
 499             self.RasterCr.stroke()
 500             reg = gtk.gdk.Region()
 501             reg.union_with_rect((int(pos[0] - r - 2), int(pos[1] - r - 2), int(2 * (r + 2)), int(2 * (r + 2))))
 502             self.window.invalidate_region(reg, False)
 503
 504     def ButtonPress(self, widget, event):
 505         ''' Handle button press events.
 506         '''
 507         self.Drawing = True
 508
 509     def ButtonRelease(self, widget, event):
 510         ''' Handle button release events.
 511         '''
 512         self.Drawing = False
 513
 514     def ExposeEvent(self, widget, event):
 515         ''' Draw the widget.
 516         '''
 517         cr = widget.window.cairo_create()
 518         cr.set_source_surface(self.Raster, 0.0, 0.0)
 519         cr.paint()
 520         cr.set_line_width(2)
 521         cr.set_source_rgba(0.0, 0.0, 0.0, 0.25)
 522         cr.rectangle(0.0, 0.0, self.WindowSize[0], self.WindowSize[1])
 523         cr.stroke()
 524
 525 class GraphicsTabletApplet:
 526     ''' GUI for configuring wacom-compatible drawing tablets.
 527     '''
 528     def __init__(self, gladefile, statusicon):
 529
 530         self.WidgetTree = gtk.glade.XML(gladefile)
 531         self.StatusIcon = statusicon
 532
 533         self.MainWindow = self.WidgetTree.get_widget("MainWindow")
 534         self.DeviceCombo = self.WidgetTree.get_widget("DeviceCombo")
 535         self.ModeCombo = self.WidgetTree.get_widget("ModeCombo")
 536         self.XTilt = self.WidgetTree.get_widget("xtilt")
 537         self.YTilt = self.WidgetTree.get_widget("ytilt")
 538         self.Wheel = self.WidgetTree.get_widget("wheel")
 539         self.ToolID = self.WidgetTree.get_widget("ToolID")
 540         self.TPCRadioButton = self.WidgetTree.get_widget("tpcbutton")
 541         self.ClickForceScale = self.WidgetTree.get_widget("ClickForceScale")
 542         self.ClickForceFrame = self.WidgetTree.get_widget("ClickForceFrame")
 543         self.SideSwitchFrame = self.WidgetTree.get_widget("SideSwitchFrame")
 544         self.TiltFrame = self.WidgetTree.get_widget("TiltFrame")
 545         self.WheelFrame = self.WidgetTree.get_widget("WheelFrame")
 546
 547         self.Curve = PressureCurveWidget()
 548         self.Curve.show()
 549         self.WidgetTree.get_widget("PressureVBox").add(self.Curve)
 550
 551         self.DrawingArea = DrawingTestWidget()
 552         self.DrawingArea.show()
 553         self.WidgetTree.get_widget("DrawingAlignment").add(self.DrawingArea)
 554
 555         self.Device = 0
 556         self.DeviceMode = None
 557         self.DeviceName = None
 558
 559         self.DeviceCombo.connect("changed", self.DeviceSelected)
 560         self.ModeCombo.connect("changed", self.ModeChanged)
 561         self.ClickForceScale.connect("value-changed", self.ClickForceChanged)
 562         self.TPCRadioButton.connect("toggled", self.TPCButtonToggled)
 563
 564         self.DeviceList = gtk.ListStore(str)
 565         self.DeviceCell = gtk.CellRendererText()
 566         self.DeviceCombo.pack_start(self.DeviceCell, True)
 567         self.DeviceCombo.add_attribute(self.DeviceCell, 'text', 0)
 568         self.DeviceCombo.set_model(self.DeviceList)
 569
 570         self.ClickForce = None
 571         self.TPCButton = None
 572
 573     def Run(self):
 574         ''' Set up device list and start main window app.
 575         '''
 576         for d in gtk.gdk.devices_list():
 577             devicename = str(d.name)
 578             self.DeviceList.append([devicename])
 579             toolID = xswGet(devicename, "ToolID")
 580             if toolID >= 0: # valid wacom device
 581                 self.Device = max(len(self.DeviceList) - 1, 0)
 582             else:
 583                 pass
 584
 585         self.DeviceCombo.set_active(self.Device)
 586         self.DeviceName = gtk.gdk.devices_list()[self.Device].name
 587         self.UpdateChildren()
 588         gobject.idle_add(self.Update)
 589
 590         self.MainWindow.run()
 591         self.MainWindow.hide()
 592
 593     def GetPressure(self):
 594         ''' Return current device pressure.
 595         '''
 596         dev = gtk.gdk.devices_list()[self.Device]
 597         state = dev.get_state(self.DrawingArea.window)
 598         return dev.get_axis(state[0], gtk.gdk.AXIS_PRESSURE)
 599
 600     def GetTilt(self):
 601         ''' Return current device tilt as (xtilt, ytilt).
 602         '''
 603         dev = gtk.gdk.devices_list()[self.Device]
 604         state = dev.get_state(self.DrawingArea.window)
 605         try:
 606             x = float(dev.get_axis(state[0], gtk.gdk.AXIS_XTILT))
 607             y = float(dev.get_axis(state[0], gtk.gdk.AXIS_YTILT))
 608             if x != x or y != y:
 609                 return None
 610             else:
 611                 return (x, y)
 612         except:
 613             return None
 614
 615     def GetWheel(self):
 616         ''' Return current device wheel state.
 617         '''
 618         dev = gtk.gdk.devices_list()[self.Device]
 619         state = dev.get_state(self.DrawingArea.window)
 620         try:
 621             wheel = dev.get_axis(state[0], gtk.gdk.AXIS_WHEEL)
 622             if wheel != wheel:
 623                 return None
 624             else:
 625                 return wheel
 626         except:
 627             return None
 628
 629     def ModeChanged(self, widget):
 630         ''' Set changed mode using xsetwacom.
 631         '''
 632         xswSet(self.DeviceName, "Mode", widget.get_active())
 633
 634     def ClickForceChanged(self, widget):
 635         ''' Do callback for ClickForce slider "value-changed" event.
 636         '''
 637         cf = widget.get_value()
 638         self.Curve.ClickForceLine = (cf - 1) / 20.0
 639         SetClickForce(self.DeviceName, cf)
 640
 641     def TPCButtonToggled(self, widget):
 642         ''' Handle "toggled" event from the TPCButton radio button.
 643         '''
 644         if self.TPCButton == widget.get_active():
 645             return
 646         self.TPCButton = widget.get_active()
 647         xswSet(self.DeviceName, "TPCButton", self.TPCButton)
 648
 649     def UpdateDeviceMode(self):
 650         ''' Update the device mode combo box.
 651         '''
 652         self.DeviceMode = xswGet(self.DeviceName, "Mode")
 653         if self.DeviceMode == None:
 654             self.ModeCombo.set_sensitive(False)
 655         else:
 656             self.ModeCombo.set_sensitive(True)
 657             self.ModeCombo.set_active(self.DeviceMode)
 658
 659     def UpdateClickForce(self):
 660         ''' Update the click force slider.
 661         '''
 662         self.ClickForce = GetClickForce(self.DeviceName)
 663         if self.ClickForce == None:
 664             self.ClickForceFrame.hide()
 665         else:
 666             self.ClickForceFrame.show()
 667             self.ClickForceScale.set_value(self.ClickForce)
 668
 669     def UpdateTPCButton(self):
 670         ''' Update the TPCButton radio button group.
 671         '''
 672         self.TPCButton = xswGet(self.DeviceName, "TPCButton")
 673
 674         if self.TPCButton == None:
 675             self.SideSwitchFrame.hide()
 676             return
 677
 678         self.SideSwitchFrame.show()
 679         self.TPCButton = bool(self.TPCButton)
 680
 681         if self.TPCButton == self.TPCRadioButton.get_active():
 682             return
 683
 684         if self.TPCButton:
 685             self.TPCRadioButton.set_active(True)
 686             return
 687
 688         for button in self.TPCRadioButton.get_group():
 689             if button != TPCRadioButton:  # there's only one other
 690                 button.set_active(True)
 691                 return
 692
 693     def UpdateChildren(self):
 694         ''' Update the child widgets to reflect current settings.
 695         '''
 696         self.UpdateDeviceMode()
 697         self.UpdateClickForce()
 698         self.UpdateTPCButton()
 699
 700     def DeviceSelected(self, widget):
 701         ''' Update the various parts of the applet for a new device.
 702         '''
 703         self.Device = widget.get_active()
 704         self.DrawingArea.Device = self.Device
 705         self.DeviceName = gtk.gdk.devices_list()[self.Device].name
 706         self.Curve.SetDevice(self.DeviceName)
 707         self.UpdateChildren()
 708
 709     def Update(self):
 710         p = self.GetPressure()
 711
 712         if p == None:
 713             self.Curve.Pressure = None
 714             self.Curve.Update()
 715         else:
 716             self.Curve.Pressure = p
 717             self.Curve.Update()
 718
 719         t = self.GetTilt()
 720
 721         if t == None:
 722             self.TiltFrame.hide()
 723         else:
 724             self.TiltFrame.show()
 725             self.XTilt.set_adjustment(gtk.Adjustment(t[0], -1.0, 1.0))
 726             self.YTilt.set_adjustment(gtk.Adjustment(t[1], -1.0, 1.0))
 727
 728         w = self.GetWheel()
 729
 730         if w == None:
 731             self.WheelFrame.hide()
 732         else:
 733             self.WheelFrame.show()
 734             self.Wheel.set_adjustment(gtk.Adjustment(w, -1.0, 1.0))
 735
 736         id = xswGet(self.DeviceName, "ToolID")
 737
 738         if id == None:
 739             id = ""
 740
 741         self.ToolID.set_label(str(id))
 742
 743         return True
 744
 745 ################################################################################
 746
 747
 748 if __name__ == '__main__':
 749
 750     import optparse
 751     parser = optparse.OptionParser()
 752     parser.add_option("-l", "--local", action="store_true", dest="runlocal",
 753         default=False, help="Run from current directory.")
 754     parser.add_option("-f", "--file", dest="filename",
 755         help="write config to FILE", metavar="FILE")
 756     parser.add_option("-s", "--set", action="store_true", dest="setandexit",
 757         default=False, help="set options and exit (don't run GUI)")
 758     parser.add_option("-g", "--get", action="store_true", dest="getandexit",
 759         default=False, help="get options and exit (don't run GUI)")
 760     (options, args) = parser.parse_args()
 761
 762     if options.runlocal:
 763         statusicon = gtk.status_icon_new_from_file("./tabletconfig.svg")
 764         gladefile = "./tabletconfig.glade"
 765     else:
 766         statusicon = gtk.status_icon_new_from_file("/usr/share/icons/tabletconfig.svg")
 767         gladefile = "/usr/share/tablet-apps/tabletconfig.glade"
 768
 769     a = GraphicsTabletApplet(gladefile, statusicon)
 770     a.Run()
 771