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tablet_capplet.py
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tablet_capplet.py
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############################################################################
##
## Copyright (C) 2007 Alexander Macdonald. All rights reserved.
##
## Modified by QB89Dragon 2009 for inclusion to pen tablet utility
##
## This program is free software; you can redistribute it and/or
## modify it under the terms of the GNU General Public License version 2
##
## Graphics Tablet Applet
##
############################################################################
import pygtk
pygtk.require('2.0')
import gtk
import gtk.glade
import gobject
import cairo
import subprocess
import math
def GetPressCurve(devicename):
command = ["xsetwacom", "get", devicename, "PressureCurve"]
output = subprocess.Popen(command, stdout=subprocess.PIPE).communicate()[0]
bits = output.strip().split()
return [float(x) for x in bits]
def SetPressCurve(devicename, points):
command = ["xsetwacom", "set", devicename, "PressureCurve", str(points[0]), str(points[1]), str(points[2]), str(points[3])]
output = subprocess.Popen(command)
def GetClickForce(devicename):
command = ["xsetwacom", "get", devicename, "Threshold"]
output = subprocess.Popen(command, stdout=subprocess.PIPE).communicate()[0]
return float(output.strip())
def SetClickForce(devicename, force):
command = ["xsetwacom", "set", devicename, "Threshold", str(force)]
output = subprocess.Popen(command)
def GetMode(devicename):
command = ["xsetwacom", "get", devicename, "Mode"]
output = subprocess.Popen(command, stdout=subprocess.PIPE).communicate()[0]
return output.strip()
def SetMode(devicename, m):
command = ["xsetwacom", "set", devicename, "Mode", str(m)]
output = subprocess.Popen(command)
class PressureCurveWidget(gtk.DrawingArea):
def __init__(self):
gtk.DrawingArea.__init__(self)
self.Points = [0,100,100,0]
self.Pressure = 0.0
self.Radius = 5.0
self.ControlPointStroke = 2.0
self.ControlPointDiameter = (self.Radius * 2) + self.ControlPointStroke
self.WindowSize = None
self.Scale = None
self.ClickForce = None
self.DeviceName = ""
self.DraggingCP1 = False
self.DraggingCP2 = False
self.DraggingCF = False
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)
self.connect("configure-event", self.ConfigureEvent)
self.connect("expose-event", self.ExposeEvent)
self.connect("motion-notify-event", self.MotionEvent)
self.connect("button-press-event", self.ButtonPress)
self.connect("button-release-event", self.ButtonRelease)
self.set_size_request(100,100)
def SetDevice(self, name):
self.DeviceName = name
self.ClickForce = GetClickForce(name)
if self.ClickForce:
self.ClickForce *= (100.0 / 19.0)
points = GetPressCurve(name)
if not points:
self.Points = None
else:
self.Points = [points[0], 100.0 - points[1], points[2], 100.0 - points[3]]
def Update(self):
if not isinstance(self.window, gtk.gdk.Window):
return
self.window.invalidate_region(self.window.get_clip_region(), True)
def ClampValue(self, v):
if v < 0.0:
return 0.0
elif v > 100.0:
return 100.0
else:
return v
def ConfigureEvent(self, widget, event):
self.WindowSize = self.window.get_size()
self.Scale = ((self.WindowSize[0] - self.ControlPointDiameter)/ 100.0, (self.WindowSize[1] - self.ControlPointDiameter) / 100.0)
def MotionEvent(self, widget, event):
pos = event.get_coords()
pos = (pos[0] / self.Scale[0], pos[1] / self.Scale[1])
if not self.Points:
return
if self.DraggingCP1:
self.Points[0] = self.ClampValue(pos[0])
self.Points[1] = self.ClampValue(pos[1])
elif self.DraggingCP2:
self.Points[2] = self.ClampValue(pos[0])
self.Points[3] = self.ClampValue(pos[1])
elif self.DraggingCF:
self.ClickForce = int(self.ClampValue(pos[0]) / (100.0 / 19)) * (100.0 / 19)
def ButtonPress(self, widget, event):
if not self.Points:
return
if self.DraggingCP1 or self.DraggingCP2 or self.DraggingCF:
self.DragFinished()
else:
pos = event.get_coords()
pos = (pos[0] / self.Scale[0], pos[1] / self.Scale[1])
if (self.Points[0] - self.ControlPointDiameter) < pos[0] < (self.Points[0] + self.ControlPointDiameter):
if (self.Points[1] - self.ControlPointDiameter) < pos[1] < (self.Points[1] + self.ControlPointDiameter):
self.DraggingCP1 = True
return
if self.Points[2] - self.ControlPointDiameter < pos[0] < self.Points[2] + self.ControlPointDiameter:
if self.Points[3] - self.ControlPointDiameter < pos[1] < self.Points[3] + self.ControlPointDiameter:
self.DraggingCP2 = True
return
if self.ClickForce - self.ControlPointDiameter < pos[0] < self.ClickForce + self.ControlPointDiameter:
self.DraggingCF = True
return
def ButtonRelease(self, widget, event):
self.DragFinished()
def DragFinished(self):
if self.Points:
if self.DraggingCP1: # Update to new curve constraints
self.Points[3] = self.Points[0]
self.Points[2] = self.Points[1]
elif self.DraggingCP2:
self.Points[0] = self.Points[3]
self.Points[1] = self.Points[2]
print (int(self.Points[0]), int(100.5 - self.Points[1]), int(self.Points[2]), int(100.5 - self.Points[3]))
SetPressCurve(self.DeviceName, [int(self.Points[0]+.5), int(100.5 - self.Points[1]), int(self.Points[2]+.5), int(100.5 - self.Points[3])])
if self.ClickForce:
SetClickForce(self.DeviceName, int(self.ClickForce / (100.0 / 19.0)) + 1)
self.DraggingCP1 = self.DraggingCP2 = self.DraggingCF = False
def ExposeEvent(self, widget, event):
cr = widget.window.cairo_create()
cr.set_line_cap(cairo.LINE_CAP_ROUND);
cr.save()
cr.translate(self.ControlPointDiameter / 2.0, self.ControlPointDiameter / 2.0)
# Grid
cr.set_line_width(0.5)
cr.set_source_rgba(0.0, 0.0, 0.0, 0.25)
cr.save()
cr.scale(self.Scale[0], self.Scale[1])
cr.new_path()
for x in range(11):
cr.move_to(x * 10.0, 0.0)
cr.line_to(x * 10.0, 100.0)
for y in range(11):
cr.move_to(0.0, y * 10.0)
cr.line_to(100.0, y * 10.0)
cr.restore()
cr.stroke()
if self.Pressure:
# Linear Line
cr.set_line_width(1.0)
cr.save()
cr.scale(self.Scale[0], self.Scale[1])
cr.new_path()
cr.move_to(0.0, 100.0)
cr.line_to(100.0, 0.0)
cr.restore()
cr.stroke()
# Click Force
if self.ClickForce:
cr.set_line_width(1.0)
cr.set_source_rgba(1.0, 0.0, 0.0, 0.25)
cr.save()
cr.scale(self.Scale[0], self.Scale[1])
cr.new_path()
cr.move_to(self.ClickForce, 0.0)
cr.line_to(self.ClickForce, 100.0)
cr.restore()
cr.stroke()
if self.Points:
points = [0.0, 100.0, 100.0, 0.0]
else:
points = self.Points
# Pressure
cr.save()
cr.scale(self.Scale[0], self.Scale[1])
cr.rectangle(0.0, 0.0, self.Pressure * 100.0, 100.0)
cr.clip()
cr.new_path()
cr.set_source_rgba(114.0 / 255.0, 159.0 / 255.0, 207.0 / 255.0, 0.5)
cr.move_to(0.0,100.0)
cr.curve_to(points[0], points[1], points[2], points[3], 100.0, 0.0)
cr.line_to(100.0, 100.0)
cr.fill()
cr.restore()
# Pressure Curve
cr.set_line_width(2.0)
cr.set_source_rgba(32.0 / 255.0, 74.0 / 255.0, 135.0 / 255.0, 1.0)
cr.save()
cr.scale(self.Scale[0], self.Scale[1])
cr.new_path()
cr.move_to(0.0,100.0)
cr.curve_to(points[0], points[1], points[2], points[3], 100.0, 0.0)
cr.restore()
cr.stroke()
if self.Points:
# Control Lines
cr.set_line_width(2.0)
cr.set_source_rgba(0.0, 0.0, 0.0, 0.5)
cr.save()
cr.scale(self.Scale[0], self.Scale[1])
cr.move_to(0.0,100.0)
cr.line_to(self.Points[0], self.Points[1])
cr.move_to(100.0,0.0)
cr.line_to(self.Points[2], self.Points[3])
cr.restore()
cr.stroke()
# Control Points
cr.set_line_width(2.0)
cr.save()
cr.arc(self.Points[0] * self.Scale[0], self.Points[1] * self.Scale[1], self.Radius, 0.0, 2.0 * math.pi)
cr.set_source_rgba(237.0 / 255.0, 212.0 / 255.0, 0.0, 0.5)
cr.fill_preserve()
cr.set_source_rgba(239.0 / 255.0, 41.0 / 255.0, 41.0 / 255.0, 1.0)
cr.stroke()
cr.arc(self.Points[2] * self.Scale[0], self.Points[3] * self.Scale[1], self.Radius, 0.0, 2.0 * math.pi)
cr.set_source_rgba(237.0 / 255.0, 212.0 / 255.0, 0.0, 0.5)
cr.fill_preserve()
cr.set_source_rgba(239.0 / 255.0, 41.0 / 255.0, 41.0 / 255.0, 1.0)
cr.stroke()
cr.restore()
cr.restore()
class DrawingTestWidget(gtk.DrawingArea):
def __init__(self):
gtk.DrawingArea.__init__(self)
self.Device = 0
self.Radius = 5.0
self.Drawing = False
self.WindowSize = None
self.Raster = None
self.RasterCr = None
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)
self.connect("configure-event", self.ConfigureEvent)
self.connect("expose-event", self.ExposeEvent)
self.connect("motion-notify-event", self.MotionEvent)
self.connect("button-press-event", self.ButtonPress)
self.connect("button-release-event", self.ButtonRelease)
self.set_size_request(100,100)
def ConfigureEvent(self, widget, event):
self.WindowSize = self.window.get_size()
self.Raster = self.window.cairo_create().get_target().create_similar(cairo.CONTENT_COLOR, self.WindowSize[0], self.WindowSize[1])
self.RasterCr = cairo.Context(self.Raster)
self.RasterCr.set_source_rgba(1.0, 1.0, 1.0, 1.0)
self.RasterCr.rectangle(0.0, 0.0, self.WindowSize[0], self.WindowSize[1])
self.RasterCr.fill()
def GetPressure(self):
dev = gtk.gdk.devices_list()[self.Device]
state = dev.get_state(self.window)
return dev.get_axis(state[0], gtk.gdk.AXIS_PRESSURE)
def MotionEvent(self, widget, event):
if self.Drawing:
pos = event.get_coords()
p = self.GetPressure()
if not p:
p = 0.0
r = p * 50 + 5
self.RasterCr.set_line_width(2)
self.RasterCr.set_source_rgba(p, 1.0, 0.0, 0.5)
self.RasterCr.arc(pos[0], pos[1], r, 0.0, 2 * math.pi)
self.RasterCr.fill_preserve()
self.RasterCr.set_source_rgba(0.5, 0.2, p, 0.5)
self.RasterCr.stroke()
reg = gtk.gdk.Region()
reg.union_with_rect((int(pos[0] - r - 2), int(pos[1] - r - 2), int(2 * (r + 2)), int(2 * (r + 2))))
self.window.invalidate_region(reg, False)
def ButtonPress(self, widget, event):
self.Drawing = True
def ButtonRelease(self, widget, event):
self.Drawing = False
def ExposeEvent(self, widget, event):
cr = widget.window.cairo_create()
cr.set_source_surface(self.Raster, 0.0, 0.0)
cr.paint()
cr.set_line_width(2)
cr.set_source_rgba(0.0, 0.0, 0.0, 0.25)
cr.rectangle(0.0, 0.0, self.WindowSize[0], self.WindowSize[1])
cr.stroke()
class GraphicsTabletApplet:
def __init__(self, window, wTree, Device):
self.Active = 0 # Control
self.InLoop = 0 # Flag
self.WidgetTree = wTree
self.MainWindow = window
self.DrawingTestFrame = self.WidgetTree.get_widget("drawingalignment")
self.PressureVBox = self.WidgetTree.get_widget("pressurevbox")
self.DeviceModeCombo = self.WidgetTree.get_widget("devicemodecombo")
self.XTilt = self.WidgetTree.get_widget("xtilt")
self.YTilt = self.WidgetTree.get_widget("ytilt")
self.Curve = PressureCurveWidget()
self.Curve.show()
self.PressureVBox.add(self.Curve)
self.DrawingArea = DrawingTestWidget()
self.DrawingArea.show()
self.DrawingTestFrame.add(self.DrawingArea)
devices = gtk.gdk.devices_list()
for i in range(0,len(devices)):
item = devices[i].name
if item in Device:
self.Device = i
self.DeviceMode = None
self.DeviceName = Device
self.DrawingArea.Device = self.Device
self.DeviceName = gtk.gdk.devices_list()[self.Device].name
self.Curve.SetDevice(self.DeviceName)
self.UpdateDeviceMode()
self.DeviceModeCombo.connect("changed", self.ModeChanged)
self.DrawingArea.set_extension_events(gtk.gdk.EXTENSION_EVENTS_ALL)
def Run(self):
self.Active = 1
self.InLoop = 1
self.DeviceName = gtk.gdk.devices_list()[self.Device].name
self.UpdateDeviceMode()
gobject.timeout_add(20, self.Update)
def Stop(self):
self.Active = 0
def GetPressure(self):
dev = gtk.gdk.devices_list()[self.Device]
if not isinstance(self.DrawingArea.window, gtk.gdk.Window):
return 0.0, 0.0
state = dev.get_state(self.DrawingArea.window)
return dev.get_axis(state[0], gtk.gdk.AXIS_PRESSURE)
def GetTilt(self):
dev = gtk.gdk.devices_list()[self.Device]
state = dev.get_state(self.MainWindow.window)
try:
x = float(dev.get_axis(state[0], gtk.gdk.AXIS_XTILT))
y = float(dev.get_axis(state[0], gtk.gdk.AXIS_YTILT))
return x, y
except:
return 0.0, 0.0
def ModeChanged(self, widget):
SetMode(self.DeviceName, widget.get_active_text())
def UpdateDeviceMode(self):
self.DeviceMode = GetMode(self.DeviceName)
if not self.DeviceMode:
self.DeviceModeCombo.set_sensitive(False)
else:
self.DeviceModeCombo.set_sensitive(True)
if self.DeviceMode == "Relative":
self.DeviceModeCombo.set_active(0)
elif self.DeviceMode == "Absolute":
self.DeviceModeCombo.set_active(1)
def DeviceSelected(self, widget):
self.Device = widget.get_active()
self.DrawingArea.Device = self.Device
self.DeviceName = gtk.gdk.devices_list()[self.Device].name
self.Curve.SetDevice(self.DeviceName)
self.UpdateDeviceMode()
def Update(self):
p = self.GetPressure()
if not p:
self.Curve.Pressure = None
self.Curve.Update()
else:
self.Curve.Pressure = p
self.Curve.Update()
t = self.GetTilt()
self.XTilt.set_adjustment(gtk.Adjustment(t[0], -1.0, 1.0))
self.YTilt.set_adjustment(gtk.Adjustment(t[1], -1.0, 1.0))
if self.Active:
return True
else:
self.InLoop = 0