Split the pyqtgraph-support code initially developed as part of
the main taurus project to create the taurus_pyqtgraph independent
module (hosted in its own repo) that can be loaded as a plugin by
taurus.

This repo starts off from the code as it was in commit 50456cc in
the taurus repo and extracts the pyqtgraph-related code and adapts
the setup.py and metadata files.
The history up to 50456cc can still be checked from the taurus repo,
but we squashed it into this initial commit to make the
taurus_pyqtgraph repo lighter.

Bellow is a log dumped from the taurus repo listing only the commits
related to pyqtgraph using the following commands on a taurus repo:

```
git checkout 50456cc
git log -- lib/taurus/qt/qtgui/extra_pyqtgraph lib/taurus/qt/qtgui/tpg

```

commit 9a72b8504a0763f11f7a972188650cfb0483434c
Author: cpascual <cpascual@cells.es>
Date:   Mon Dec 11 16:10:31 2017 +0100

    Fix Y2 setting by CurvesAppearanceChooser

    The implementation of assigning the Y axis to each curve is buggy.
    It does not handle the case in which the corresponding property is in
    conflict. Fix it by allowing the "assign to Y* axis" buttons to be
    unchecked. Also simplify the logic in the setting of the axis.

commit 2d9b248187fe9db83274400b10c337b30edeabd3
Author: cpascual <cpascual@cells.es>
Date:   Mon Dec 11 09:44:36 2017 +0100

    Optimize the setting of Y axis when no axis is passed

    CurvesAppearanceChooser.setCurveYAxis can be skipped if no axis is
    given.
    Also, improve its docstring.

commit 1d6000d19de83ef8790aaff5f8cb8ae3aa4142fb
Author: cpascual <cpascual@cells.es>
Date:   Tue Dec 5 11:27:36 2017 +0100

    Refactor Y2ViewBox and document its public API

commit 739a8c7e2e8b755fcf461cf9e422f6ee3204fa88
Author: cpascual <cpascual@cells.es>
Date:   Tue Dec 5 11:26:11 2017 +0100

    PEP8

commit 77cadbea8478a3404dc47430f9e298fe8c09253b
Author: cpascual <cpascual@cells.es>
Date:   Tue Dec 5 10:44:20 2017 +0100

    First version of the pyqtgraph-based TaurusTrend

    First version. It already provides:

    - Model chooser tool
    - Force read tool
    - Save/retrieve config tool
    - Plot config tool
    - Y2 Axis tool
    - Time X axis
    - Legend tool

commit d68c605972105982ee6d81f13d8a7ea5bdd1e2f7
Author: cpascual <cpascual@cells.es>
Date:   Tue Dec 5 10:36:56 2017 +0100

    Handle adding/removing trendset curves to legend

    Handle adding and removing legend items for each of the curve items
    dynamically managed by a TaurusTrendSet.

    Also, force a read when setting model in order to ensure that the
    curves are created from the beginning.

commit 48adeceda2b7214e0a171198e105cce5d7d6d6c1
Author: cpascual <cpascual@cells.es>
Date:   Tue Dec 5 10:22:12 2017 +0100

    Remove unclear instructions

    Comment out 3 lines whose purpose is not clear (and marking them with
    TODOs).
    Also, document the updateModels method

commit 9e02e77c2366c39961b80c5ca28d0fb9f525d816
Author: cpascual <cpascual@cells.es>
Date:   Mon Dec 4 16:06:56 2017 +0100

    (minor )Improve the main function for testing

commit 5176c91e13863ca1ee08cb851df7bd03e993a4dc
Author: cpascual <cpascual@cells.es>
Date:   Fri Dec 1 04:14:07 2017 +0100

    Add model to TaurusTrendSet config properties

commit 8b8fb7eaea8d403499b4a1a3b7b851e4a05c0b70
Author: cpascual <cpascual@cells.es>
Date:   Fri Dec 1 03:00:22 2017 +0100

    Add TaurusModelChooserTool.updateModels method

commit c14d476d45b7cb30b0aa6fe8da7452d517718e3a
Author: cpascual <cpascual@cells.es>
Date:   Thu Nov 30 18:05:27 2017 +0100

    Register curves opts as a config property of TaurusTrendSet

commit 5809563c4faaecc860b8431fd5846245a52857db
Author: cpascual <cpascual@cells.es>
Date:   Thu Nov 30 14:09:24 2017 +0100

    rename Y2ViewBox.clearCurves --> clearItems

commit 348d20dd3faba4f7c7a9483f3dd95988611f7e48
Author: cpascual <cpascual@cells.es>
Date:   Thu Nov 30 13:54:46 2017 +0100

    Implement serialize_opts and deserialize_opts

    taursplotdataitem implements private funtions to (de)serialize curve
    opts dicts. Make them public as tpg.{de,}serialize_opts

commit 4990bd79702b27b0085a01e8569f2b029d36166f
Author: cpascual <cpascual@cells.es>
Date:   Thu Nov 30 13:48:40 2017 +0100

    Add TODO

commit 38a8e754d1165f4d8cdf435dc65b53c495a533bf
Author: cpascual <cpascual@cells.es>
Date:   Thu Nov 30 13:05:29 2017 +0100

    Do relative import

    Avoid circular import issue by using a relative import

commit 30c81cbb2954c732980c7e6d1c305f2d757f5bc4
Author: cpascual <cpascual@cells.es>
Date:   Thu Nov 30 12:21:41 2017 +0100

    Protect against exception in TaurusItemConfDlg

    TaurusItemConfDlg raises an exception and is not shown if the default
    tango host cannot be dicovered. Protect and mark the code as
    Tango-centric.

commit da65090782caa0378b3684465dadb0ce80774ef6
Author: cpascual <cpascual@cells.es>
Date:   Thu Nov 30 00:34:15 2017 +0100

    PEP8

commit 4f2b07ebf9b1dd742eb0bee3cacf2e396ce29c50
Author: cpascual <cpascual@cells.es>
Date:   Wed Nov 29 11:04:44 2017 +0100

    Refactor ForcedReadTool and TaurusTrendSet

    - Move timer from ForcedReadTool to each TaurusTrendSet, and task
      ForcedReadTool just with the setting of the period
    - Implement autoconnection beetween ForcedReadTool and TaurusTrendSet
    - Register period and autoconnect as config properties of the tool

commit 6360d064e64eec276681d520997662cd4576e036
Author: cpascual <cpascual@cells.es>
Date:   Mon Nov 27 09:06:51 2017 +0100

    Refactor container special methods

    tpg.TaurusTrendSet implements special methods to behave as a container.
    Fix a bug in the __len__ method and refactor __getitem__ and
    __contains__

commit 6b270171eed7bb40e93bae220ec16b107ff1b70a
Author: cpascual <cpascual@cells.es>
Date:   Mon Nov 27 08:57:17 2017 +0100

    Fix typo

commit 7f373bb151aee8a3ad525e39e331c6a1f2882e8d
Author: cpascual <cpascual@cells.es>
Date:   Fri Nov 24 16:11:23 2017 +0100

    PEP8

commit 53ad77d52a65305d2a695a0b8f2330c3151d6784
Author: cpascual <cpascual@cells.es>
Date:   Sun Nov 26 21:53:40 2017 +0100

    Add period config property to ForcedReadTool

commit fb14df202415caeac531d624916ad12b81d15a00
Author: cpascual <cpascual@cells.es>
Date:   Sat Nov 25 00:59:58 2017 +0100

    Add ForcedReadTool (first version)

    First version of ForcedReadTool. Still more work needed:

    - handle connection to existing trendsets (on attach to plot)
    - handle autoconnection of trensets when they are attached to a
      Plot with this tool attached
    - register config props

commit 7ca5b23bad46ed832e65ada38955afa0d592c129
Author: cpascual <cpascual@cells.es>
Date:   Wed Oct 25 10:45:04 2017 +0200

    Tidy-up tpg code

    - Refactor  taurusplotdataitem code to tidy it up
    - Refactor and document taurustrendset
    - Refactor some main section's demo code

commit 8b80280efaa70b461f21707c1809d260af14e597
Author: cpascual <cpascual@cells.es>
Date:   Wed Oct 25 10:18:15 2017 +0200

    Tidy-up curves model code

    Refactor and document some code of the curves model and the model
    chooser tool to tidy it up.

commit 4b955610d2195068288634866eedb790bba69f11
Author: cpascual <cpascual@cells.es>
Date:   Tue Oct 24 15:00:29 2017 +0200

    Remove "use indices" display

    The QModel for the curves uses "(use indices)" as a display value when
    the model is not set, but this is only valid for the X column. Replace
    by empty string.

commit 5fcaf6f3e0ba0f6200856ae03c0112284dfd09f0
Author: cpascual <cpascual@cells.es>
Date:   Tue Oct 24 08:28:52 2017 +0200

    Change order of imports

    Swap order of pyqtgreaph and taurus imports to avoid incompatible API
    error

commit 6f85592e236672165a525194162b1afa168547ff
Author: cpascual <cpascual@cells.es>
Date:   Mon Oct 23 16:07:35 2017 +0200

    Fix bug when applying merged properties

    When applyng merged properties, if the lWidth and sSize properties
    are in conflict they get wrongly set to -1 (instead of not being set
    at all as it would be expected). This is a bug in getShownProperties.
    Fix it

commit 605715abb4ff48a738f769141c3867c3f1f2dd36
Author: cpascual <cpascual@cells.es>
Date:   Mon Oct 23 15:05:55 2017 +0200

    Pass parent to tools in constructor

    Tools that are implemented as QActions need to have their parent set to
    the plotwidget in order for the menu entries to be visible.
    Pass the parent in the constructor

commit a692f0c2b40de39acc9d963ac0a7b159634926b3
Author: cpascual <cpascual@cells.es>
Date:   Mon Oct 23 09:43:52 2017 +0200

    Make local imports to avoid cyclic import errors

    Avoid top-level absolute imports of tpg modules to avoid cyclic import
    errors

commit 34863e9fbd75058d396618c0df3b974eaa5c1367
Author: cpascual <cpascual@cells.es>
Date:   Mon Oct 23 09:42:03 2017 +0200

    Refactor model chooser tools

    - Join all 3 model chooser tools (original image and XY) into one file
    - Document and refactor some tools to tidy up the code
    - Add WIP warnings

commit 75ddb0c9c8671e2b6a441e5cfc5e43ad206ab49f
Author: cpascual <cpascual@cells.es>
Date:   Fri Oct 20 15:38:09 2017 +0200

    (minor) PEP8

commit a7ee07f9b915605ad62bf391136f1e31085968da
Author: cpascual <cpascual@cells.es>
Date:   Fri Oct 20 15:14:50 2017 +0200

    Tidy-up and improve tools

    - Refactor and document the code of various tools to tidy it up.
    - Make curves proerties tool use semitransparent line color for the
      curve fill
    - simplify signature of various "attachToPlotItem" methods

commit 94ef090ef1d8ad1e1281cb0a2f22c34938743487
Author: cpascual <cpascual@cells.es>
Date:   Fri Oct 20 14:56:21 2017 +0200

    (minor) PEP8

commit cb7102fc5622c0d7cb26504951e4b49c3b9b9aa8
Author: cpascual <cpascual@cells.es>
Date:   Fri Oct 20 09:49:24 2017 +0200

    Tidy-up legendtool.py code

    Refactor and document the code to tidy it up

commit 9d1da4da4b1d880b950a50cfd3f343fccf446ed0
Author: cpascual <cpascual@cells.es>
Date:   Thu Oct 19 16:06:14 2017 +0200

    Add TaurusPlotMain and tidy-up plot.py code

    Add a main function to be used by launcher and document the code to
    tidy it up

commit 381fc6ab5fb1017a4c59fff3182fdfd33872292f
Author: cpascual <cpascual@cells.es>
Date:   Thu Oct 19 15:46:31 2017 +0200

    Tidy-up dateaxisitem.py code

    Refactor and document the code to tidy it up

commit 38383eb881941c688654c0af8dfc029559a236a0
Author: cpascual <cpascual@cells.es>
Date:   Thu Oct 19 11:46:42 2017 +0200

    Tidy-up taurustrendset code

    Refactor and document the code to tidy it up

commit 0cc845d8d6ec480c0cfed428a5194a03ff45e5ae
Author: cpascual <cpascual@cells.es>
Date:   Thu Oct 19 09:53:46 2017 +0200

    Rename XAutoPanAction -> XAutoPanTool and tidy-up it

    Rename, document and refactor to tidy-up the code a bit

commit a0f734e7cfc2f431b3b8084c8ae29020e1f4efdc
Author: cpascual <cpascual@cells.es>
Date:   Wed Oct 18 19:05:12 2017 +0200

    Rename tpg submodules

    Use shorter and all-lowercase names for the submodules of tpg

commit 5b8f5b3b87d2c07f54935605f7472baa5749d07e
Author: cpascual <cpascual@cells.es>
Date:   Wed Oct 18 18:49:47 2017 +0200

    Improve examples

    improve docs and code  of the examples

commit edc76c55f407ee4efcd3552962c637d1065cd13e
Author: oscarPrades <oprades@axt.email>
Date:   Thu Aug 10 12:04:59 2017 +0200

    Comment

commit e66b71942afe1b838f155b51f4fd98cff303cf6a
Author: oscarPrades <oprades@axt.email>
Date:   Thu Aug 10 11:58:50 2017 +0200

    Comment added

commit b3593da5e070eb40a28ed0fb707e6ec0be3bffef
Author: oscarPrades <oprades@axt.email>
Date:   Thu Aug 10 11:43:18 2017 +0200

    Rename package

commit f5380ac01e3670ae2edfbb4353e9fcac7a331abd
Author: oscarPrades <oprades@axt.email>
Date:   Thu Aug 10 11:38:51 2017 +0200

    General changes

    -Added __all__ in submodules.
    -Import public API members in __init__.py
    -Rename package extra_pyqtgraph to ptg

commit da5ed5c8b4a573b5a0bbcbf88fa3f84fa2d3a4a2
Author: oscarPrades <oprades@axt.email>
Date:   Wed Aug 9 12:45:40 2017 +0200

    PEP8

commit f71bfb79347c267384e9766ab78836642151f390
Author: oscarPrades <oprades@axt.email>
Date:   Wed Aug 9 12:45:09 2017 +0200

    Added Plot configuration title to dialog

commit 5a98c7ec7cc509c0d9176426dfacbdf277b1258f
Author: oscarPrades <oprades@axt.email>
Date:   Wed Aug 9 12:44:17 2017 +0200

    Method _initActions moved to class __init__

commit e80483e18778ab22f694b0a27afdafed1eb8383a
Author: oscarPrades <oprades@axt.email>
Date:   Wed Aug 9 12:43:15 2017 +0200

    Renamed class in oscmodetool.py

commit 1d295067e1de7541d6477ab6ea132969ac41e25d
Author: oscarPrades <oprades@axt.email>
Date:   Wed Aug 9 12:01:52 2017 +0200

    Bug fixed in TaurusPlotDataItem

    When we save the configuration from a curve (TaurusPlotDataItem)
    the curve backs to original state in some properties, for example
    width and style. Added a call to copy.copy() function for avoid
    this bug.
    Also PEP 8 checked.

commit 4f7e249008828f289aa197f920c728ee9299d015
Author: oscarPrades <oprades@axt.email>
Date:   Mon Aug 7 12:00:33 2017 +0200

    PEP8

commit 1542793397e82401656060947ed35445cdc46a72
Author: oscarPrades <oprades@axt.email>
Date:   Mon Aug 7 11:39:50 2017 +0200

    Added config property in PlotLegendTool.

    Now, the plotLegendTool class is also a BaseConfigurableClass.
    Save if the legend is active or not.
    In TaurusPlot:
    - Added the configDelegate for PlotLegendTool.
    - Now, we remove all the curves from widget and from legend when
    the configuration is restored, before adding the retrieve curves.
    This prevents a bug with autoResize from the legend.

commit 2ccf390f7adc2ad98e3c2155b427431c45c67d80
Author: oscarPrades <oprades@axt.email>
Date:   Mon Aug 7 11:38:31 2017 +0200

    Added documentation

commit 4a2432f13102aff8c9cb592e58c1f06dc72159fe
Author: oscarPrades <oprades@axt.email>
Date:   Mon Aug 7 10:43:11 2017 +0200

    Add coments, some bug fixed.

    Link X axis to Y2 axis correctly.
    Added fucntion to remove curves in Y2 axis before adding the
    curves restored from configuration file (avoid dups)

commit 70222befe688496acb4526ba23759a8b79f40e1e
Author: oscarPrades <oprades@axt.email>
Date:   Fri Aug 4 12:22:22 2017 +0200

    Remove TODO

commit 911152e4a3e46b0dd7542d583924ea1a383b17e2
Author: oscarPrades <oprades@axt.email>
Date:   Fri Aug 4 12:16:43 2017 +0200

    Added config property, viewBox state.

    Now the Y2ViewBox object save his state (bounds, view range,
    autorange, autopan,....).
    This way, when we restore the properties of widget, all the
    curves will be displayed in the correct prevoius state,
    indepently which be the Axis.

commit 0fc099648f00c3e53383e909336aaad824ec0ca3
Author: oscarPrades <oprades@axt.email>
Date:   Fri Aug 4 12:05:44 2017 +0200

    Code refactor.

commit a9b974b4059e08b294fd76e0fdc20aa24b2a65c6
Author: oscarPrades <oprades@axt.email>
Date:   Fri Aug 4 11:59:40 2017 +0200

    Add config property in Y2ViewBox class

    Add config property in Y2ViewBox class and delegate in TaurusPlot.
    Now, the Y2ViewBox can remember the curves associated to him self
    and the widget(TaurusPlot) can ask him for add each curve in
    the correct ViewBox (Axis in this case).
    Y2ViewBox has the property for save their curves, but is the
    widget, which has to decide how add this curves, having the
    info about the Y2 axis curves.

commit f43b79c1517d74a38888ae8ad021d4ccae603395
Author: oscarPrades <oprades@axt.email>
Date:   Wed Aug 2 11:09:48 2017 +0200

    Behaviour of Y2ViewBox class in CurveProperties.

    The TaurusPlot (widget) is the manager to create a Y2ViewBox and
    specify to a CurvePropertiesTool that can be used in the
    CurveAppearanceChooserDialog for swapping curves between main
    and Y2 axis.
    The TaurusPlot widget now is a bridge between the Y2ViewBox and
    the dialog.
    If the dialog doesn't recive any Y2ViewBox object, the groupBox
    that manages the Y1 and Y2 axis, will be disabled.

commit fcda28a55689670ea4609453d177b08480cc5c86
Author: oscarPrades <oprades@axt.email>
Date:   Wed Aug 2 11:08:35 2017 +0200

    Code refactor, documentation added.

commit 5ea46fee34b677df1f72ea3091adafcbcc5f3978
Author: oscarPrades <oprades@axt.email>
Date:   Tue Aug 1 11:57:07 2017 +0200

    Some changes

    - Change buttons Y1, Y2 to RadioButtons(UI)
    - Now, the changes in Y axis, will be applied when the user
    press button Apply.
    - Document classes and methods

commit d7182dfc282f9e1f7ac2067c6d16895ef55c09c5
Author: oscarPrades <oprades@axt.email>
Date:   Tue Aug 1 11:56:17 2017 +0200

    Code refactor

commit 3f308b57f888c2df7196d1b5136c48d6829bb61f
Author: oscarPrades <oprades@axt.email>
Date:   Thu Jul 27 11:12:26 2017 +0200

    PEP 8

commit ee211852b895cadd62ad71410d9a03c0555b28f5
Author: oscarPrades <oprades@axt.email>
Date:   Thu Jul 27 10:41:16 2017 +0200

    Fix bug with XYmodelChooser and axisYtool.

    In usage of both tools, modelchooser and axisY2, the curves
    dont be inserted correctly.
    Fix it:
    -Override method ViewBox.addItem in Y2ViewBox class.
    -In XYmodelchooser, delegates remove and add item to parent
    viewBox of each curve.

commit 70b3a74e29e81ced8de2d21adb6f624fda9239b5
Author: oscarPrades <oprades@axt.email>
Date:   Thu Jul 27 09:56:34 2017 +0200

    Checkable option for activate a legend

    Now the option for show and hide a legend within a plotwidget
    is checkable.

commit 4a712e5dd5e2a13ad7cc065ce2f705d45ad545b5
Author: oscarPrades <oprades@axt.email>
Date:   Wed Jul 26 12:56:47 2017 +0200

    Avoid insert duplicate curves when loading config

    Also implements TaurusPlotDataItem.getFullModelNames as
    a identifier of a curve in this form:
     (XfullmodelName, Yfullmodelname)

commit cb80ccee47f1921a236c0f1ca36dcf1855e45d41
Author: oscarPrades <oprades@axt.email>
Date:   Wed Jul 26 11:59:10 2017 +0200

    Add state config property

    (Re)store PlotWidget state (ranges, panning state, ...) via the ConfigProperty mechanism

commit bb087ead7e4be61f15f0ba7b2cebc8e5a3142a43
Author: oscarPrades <oprades@axt.email>
Date:   Wed Jul 26 11:54:05 2017 +0200

    PEP8

commit 06ac14eae6c748afbef30798a1d389b137082aef
Author: oscarPrades <oprades@axt.email>
Date:   Tue Jul 25 11:59:32 2017 +0200

    Reimplement TaurusPlot.{create,apply}Config to handle TaurusPlotDataItems.

    An special reimplementation is needed to guarantee that the curve configs are
    (re)stored.

commit 57de3e31c2461b0fa3ffd11434245c059e1a673d
Author: oscarPrades <oprades@axt.email>
Date:   Mon Jul 24 11:49:05 2017 +0200

    Generalize taurusXY model chooser. First step.

    The taurus XY model chooser is implemented with curves in mind,
    but can be generalized as a substitute of taurus model chooser.
    Do first steps towards generalization by removing references
    to curves.

commit 163817be765ac2a5fd417a1f4049bbe0c2b59470
Author: oscarPrades <oprades@axt.email>
Date:   Mon Jul 24 09:54:34 2017 +0200

    Add tool to show and hide legend from a plot

commit f005c5d189e266a10f3ac5c62a3cc99275bbf98a
Author: oscarPrades <oprades@axt.email>
Date:   Mon Jul 24 09:54:06 2017 +0200

    Code refactor

commit 312318cd62d93c0527ef185d009b5400a9a0e0eb
Author: oscarPrades <oprades@axt.email>
Date:   Fri Jul 21 11:57:46 2017 +0200

    Removed all Qt.QVariant from the code

commit 49861e7f5c2bc0070b062921457c5cd2505cc6a8
Author: oscarPrades <oprades@axt.email>
Date:   Fri Jul 21 11:05:59 2017 +0200

    Tool for taurus modelXY chooser.

    This tool allows attach the model chooser dialog to
    PlotWidget and manage the operations for add, remove or modify
    the models within a taurus curve.

commit c8f0697503c3df45e96f6bd4cd2caa4ebb29373f
Author: oscarPrades <oprades@axt.email>
Date:   Fri Jul 21 11:03:19 2017 +0200

    Implement a dialog for choose a Taurus model.

    This dialog give the chance for choose a model in X axis
    and Y axis, both associated with a curve (TaurusPlotDataItem).

commit 7174d594f6f567109c4397a86acbe8c139d68ad4
Author: oscarPrades <oprades@axt.email>
Date:   Fri Jul 21 10:59:43 2017 +0200

    Added legend option and ModelChooser

    Added option to widget menu for show and hide the legend from
    the plot widget. This legend will be updated automatically with
    the curves added or removed from the widget.
    Also added to widget menu the calling for a modelChooserTool
    that allows choose a model for X and Y axis.

commit 034ed6cfa15897b59374794333bcaac8e1a6fc12
Author: oscarPrades <oprades@axt.email>
Date:   Fri Jul 21 10:58:15 2017 +0200

    Code refactor

commit dd9e299e4e0251029813ab939cc97b34fde873ab
Author: oscarPrades <oprades@axt.email>
Date:   Fri Jul 21 10:35:34 2017 +0200

    Example of use legend Item.

    This is an example of how to use a pyqtgraph.LegendItem in a
    pop up window outside for the main widget plot.

commit 4761089177d501e764b98130384593879f22d685
Author: oscarPrades <oprades@axt.email>
Date:   Fri Jul 14 12:43:57 2017 +0200

    Add save and restore properties options.

    Implements 2 QAction in widget's menu for save and/or retrieve
    properties from each TaurusPlotDataItem(curve) from the widget.

commit 2081665b0419127684a62312fec1809e33aa1c26
Author: oscarPrades <oprades@axt.email>
Date:   Fri Jul 14 11:29:14 2017 +0200

    PEP 8

commit 909e6aa94b2b14f0b7d8e11cd2f937b03275eb70
Author: oscarPrades <oprades@axt.email>
Date:   Fri Jul 14 11:19:52 2017 +0200

    Code refactor

    Now, curve items (taurus models) are adding or removing from
    their respective parents (usually from a pyqtgraph.ViewBox
    object)

commit 65dcc9f8a9ac5cfe16b01002fc5faef69fc8909e
Author: oscarPrades <oprades@axt.email>
Date:   Fri Jul 14 11:18:44 2017 +0200

    Code refactor

commit 61e7bff03c175cc6b4f649db1bdb6c21690710bf
Author: oscarPrades <oprades@axt.email>
Date:   Wed Jul 12 12:51:22 2017 +0200

    Plot widget involving pyqtgraph

    First approach to Plot widget based in a pyqtgraph
    implementation

commit 5e711502239b603a70f811883e8dde0f53fe3ae9
Author: oscarPrades <oprades@axt.email>
Date:   Wed Jul 12 12:50:06 2017 +0200

    Code refactor

commit 135a787fcba9314b3221470bf092eff4d7b3b694
Author: oscarPrades <oprades@axt.email>
Date:   Wed Jul 12 12:14:24 2017 +0200

    Code refactor

    Refactor some code and add 2 more properties to curve

commit a003e024310ef07323c84dd46025421a08192392
Author: oscarPrades <oprades@axt.email>
Date:   Tue Jul 11 11:24:42 2017 +0200

    Add save and restore options in TaurusPlotDataItem

    Save and restore curve properties and models contained in
    TaurusPlotDataItem.

commit f5d7b7496796c1173f2308f476d1d677f4b990f1
Author: oscarPrades <oprades@axt.email>
Date:   Tue Jul 4 11:38:42 2017 +0200

    Implement setXmodel

    Allows to user build a TaurusPlotDataItem setting a model for
    absissas values (X axis)

commit 2203180fd1ee49f79cd0e80a5fcfcf3eda1acf3a
Author: oscarPrades <oprades@axt.email>
Date:   Mon Jul 3 12:43:23 2017 +0200

    PEP8

commit 328afccc9b80107514cae1fcc4aeed45a0ed294a
Merge: df9511f2 f1cce853
Author: oscarPrades <oprades@axt.email>
Date:   Mon Jul 3 12:34:09 2017 +0200

    Merge remote-tracking branch 'cpascual/tep17' into tep17

    Solved conflicts in:
            lib/taurus/qt/qtgui/extra_pyqtgraph/curvesAppearanceChooserDlg.py

commit df9511f23eeef4f69bd9f8a1275d41f4e0e0fdfb
Author: oscarPrades <oprades@axt.email>
Date:   Mon Jul 3 12:07:53 2017 +0200

    Example, how to set label names to an AxisItem.
    Please enter the commit message for your changes. Lines starting

commit 64d5ab5b47eeb0366d84cf12c0171ff3ebdba60e
Author: oscarPrades <oprades@axt.email>
Date:   Fri Jun 30 11:57:41 2017 +0200

    Add tool testing in the main() function

    Integrate fixed-range scale tool within TaurusTrendSet.

commit 2b02aadab8678bc034dfa61a1756be29db344f0d
Author: oscarPrades <oprades@axt.email>
Date:   Fri Jun 30 11:55:19 2017 +0200

    Add UI to switch view modes

    Add fixed-range scale to ViewBox default menu for for switch
    between this mode and ViewBox default modes

commit c07ba010c972ec1d74b0819f344548dcb202fe4c
Author: oscarPrades <oprades@axt.email>
Date:   Thu Jun 29 13:09:02 2017 +0200

    Implement X fixed ranged tool

    Tool for fix the range of X axis (osciloscope mode).
    Works within attachToPlotItem behaviour.

commit 4eababed3275e3418e68e901aa2ecf597b56b612
Author: oscarPrades <oprades@axt.email>
Date:   Wed Jun 21 09:52:20 2017 +0200

    Fix bug with hideAxis from Y2ViewBox

commit 88129a57ff09762e8d832d7f1a5a42614813ca2e
Author: oscarPrades <oprades@axt.email>
Date:   Wed Jun 21 09:14:37 2017 +0200

    Approach of taurusTrendSet

    Solution for handle a set of curves from taurusTrend

commit 0e97bb54e1e149b6087ddf0710e37bf6f9202839
Author: oscarPrades <oprades@axt.email>
Date:   Wed Jun 21 09:10:20 2017 +0200

    Add compatibility with TaurusTrendSet

    Define _UImodifiable that allows to dialog display and/or change
    the properties of any curve that doesn't contain this attribute
    _UImodifiable

commit 6300e06266f9441718b30e49d33a1177bc2ce788
Author: oscarPrades <oprades@axt.email>
Date:   Wed Jun 21 09:06:36 2017 +0200

    Refactor

    Fix bug with autoResize viewBox and add changes to GUI

commit fd908f21dd1d0c6a1678a6d7bc71a84b03d65228
Author: oscarPrades <oprades@axt.email>
Date:   Thu Jun 1 11:49:00 2017 +0200

    Define name for each curve in TrendSet.

    Automatically defines a name for each curve created in TrendSet.
    This allows show the name curve when properties dialog is used.

commit ac9ecf53c7451c4539d940e68962af0d515be293
Author: oscarPrades <oprades@axt.email>
Date:   Thu Jun 1 11:45:22 2017 +0200

    Add autorange functionality.

    Calls PlotItem.autoRange when sets a model for update the view.

commit 298ad774146907c01fc5690750d0d8ef05c45ccf
Merge: becb068c e4da3330
Author: cpascual <cpascual@cells.es>
Date:   Mon May 29 14:50:22 2017 +0200

    Merge branch 'tep17' of https://github.com/oscarPrades/taurus into tep17

commit e4da3330d9bc4bd3261d2349ab647750c56506f9
Author: oscarPrades <oprades@axt.email>
Date:   Mon May 29 13:56:09 2017 +0200

    Fix exception on yBuffer resize

    Use pure nunmpy buffer for y values instead of Quantities

commit 8978816b38ad2b1d95ba4731858fec7f2540a649
Author: oscarPrades <oprades@axt.email>
Date:   Mon May 29 13:07:07 2017 +0200

    Add first implementation of Trends with pyqtggrah

    Provide the extra_pyqtgraph.TaurusTrendSet class.

    IMPORTANT: this is an still buggy proof of concept. See TODOs
    in the code

commit 4950773f3ee1c357ddbecd9d04c12877574de456
Author: oscarPrades <oprades@axt.email>
Date:   Mon May 29 12:59:25 2017 +0200

    Generalize Model Chooser Tool to support TrendSets

    TamurusÇModelChooserTool assumes that TaurusPlotDataItems are used.
    Make it more general by allowing the caller to specify the class.

commit af6f9e343c4a8ced233521eba67653480f186dd1
Author: oscarPrades <oprades@axt.email>
Date:   Mon May 29 12:58:38 2017 +0200

    (m) Remove debug print

commit 6b6e51aa7409d7b80257ebd6c025614174788842
Author: oscarPrades <oprades@axt.email>
Date:   Mon May 29 12:57:12 2017 +0200

    Support curves without name

    Avoid exception if name is not passed in the initialization kwargs

commit becb068c94c087457036e78023f2aecdf34e1024
Author: cpascual <cpascual@cells.es>
Date:   Thu May 18 14:53:42 2017 +0200

    Correct PEP8 issues

commit e545dd2fd9745c220c226384500eb4bf245e9673
Author: oscarPrades <oprades@axt.email>
Date:   Thu May 18 11:34:17 2017 +0200

    Implement first version of DateAxisItem

    DateAxisItem provides date-time support on pyqtgraph-based plots.

commit 4951bbf6e7d582f5f7f33bbf2302e9772390dce9
Author: oscarPrades <oprades@axt.email>
Date:   Thu May 18 11:31:08 2017 +0200

    Add TODO on TaurusPlotDataItem.setXModel

    TaurusPlotDataItem does not yet support X model. Leave a TODO

commit 234ac88dcc21ab9b5a0b37d5156b210472bc7ed8
Author: oscarPrades <oprades@axt.email>
Date:   Thu May 18 11:30:18 2017 +0200

    Add license header

commit 6ac185c84f7dc636640bfdd331a69714a798c3bd
Author: oscarPrades <oprades@axt.email>
Date:   Fri May 5 12:35:16 2017 +0200

    Implements Curve properties dialog.

    Implements a dialog that allows to change properties from curves.
    This dialog can be attached to plotItem or plotWidget via
    curvesPropertiesTool (Adds a new action in the menu called
    Plot configurations).
    Also implements another tool called axisYtool for move curves
    to left or right in the axis of a plotItem. axisYtool is used by
    properties dialog but can be used too without dialog.
    In curves properties dialog file, there is a wrapper
    (adapter controller), for map all pyqtgraph properties to
    curve generic properties and manage all pyqtgraph objects
    from properties dialog.

commit 2de08f1d091885c8b1987875137cb57de6f398e6
Author: oscarPrades <oprades@axt.email>
Date:   Wed Apr 5 12:49:24 2017 +0200

    Refactor TaurusModelChooser tool for image

    Make TaurusModelChooserToolImage attachable to a plot item.
    Delay ImageItem access till trigger
    Support auto creation of TaurusImageItem if none previously existing

commit 8e078cade76c09046079b0fb7e2766a0839c7a2f
Author: oscarPrades <oprades@axt.email>
Date:   Mon Apr 3 12:35:10 2017 +0200

    Implements model chooser for a TaurusImageItem

    Implements taurusmodelchooserToolImage that allows add a tool
    to TaurusImageItem for choose the model that will be displayed.
    Also changes the way to call a TaurusImageItem object.

commit 50fd84bf014b93f8261a095ded776e130c1b791e
Author: oscarPrades <oprades@axt.email>
Date:   Fri Mar 31 09:10:43 2017 +0200

    Fix bug in legend from plotItem

commit ece9a97e3b4d5efe58318727b1acd310ca7956d6
Author: oscarPrades <oprades@axt.email>
Date:   Thu Mar 30 09:35:13 2017 +0200

    Implements legend to TaurusModelChooserTool

    Add legend to plot item and changes automatically with the
    selection of models from ModelChooserTool

commit b01a4d2fe2621609635be24270c5f7f26167f2c8
Author: oscarPrades <oprades@axt.email>
Date:   Wed Mar 29 10:20:19 2017 +0200

    Implements taurus model chooser tool

    Add menu to pyqtgraph plots for display the TaurusModelChooser
    widget. Implements option to add and remove data from models of
    the Tango server.

commit 8dec4e3bd18b0b5f7d85d76d24a4588e56df1786
Author: oscarPrades <oprades@axt.email>
Date:   Fri Mar 24 10:25:01 2017 +0100

    Implements data and image plot with pyqtgraph.

    PyQwt5 is deprecated. Add a first proof of concept for a
    'Taurus-ified' extension based in pyqtgraph. Add plotting for data
    and 2D and 3D image data.