diff --git a/LICENSE b/LICENSE new file mode 100644 --- /dev/null +++ b/LICENSE @@ -0,0 +1,339 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Lesser General Public License instead.) You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +this service if you wish), that you receive source code or can get it +if you want it, that you can change the software or use pieces of it +in new free programs; and that you know you can do these things. + + To protect your rights, we need to make restrictions that forbid +anyone to deny you these rights or to ask you to surrender the rights. +These restrictions translate to certain responsibilities for you if you +distribute copies of the software, or if you modify it. + + For example, if you distribute copies of such a program, whether +gratis or for a fee, you must give the recipients all the rights that +you have. You must make sure that they, too, receive or can get the +source code. And you must show them these terms so they know their +rights. + + We protect your rights with two steps: (1) copyright the software, and +(2) offer you this license which gives you legal permission to copy, +distribute and/or modify the software. + + Also, for each author's protection and ours, we want to make certain +that everyone understands that there is no warranty for this free +software. If the software is modified by someone else and passed on, we +want its recipients to know that what they have is not the original, so +that any problems introduced by others will not reflect on the original +authors' reputations. + + Finally, any free program is threatened constantly by software +patents. We wish to avoid the danger that redistributors of a free +program will individually obtain patent licenses, in effect making the +program proprietary. To prevent this, we have made it clear that any +patent must be licensed for everyone's free use or not licensed at all. + + The precise terms and conditions for copying, distribution and +modification follow. + + GNU GENERAL PUBLIC LICENSE + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + + 0. This License applies to any program or other work which contains +a notice placed by the copyright holder saying it may be distributed +under the terms of this General Public License. The "Program", below, +refers to any such program or work, and a "work based on the Program" +means either the Program or any derivative work under copyright law: +that is to say, a work containing the Program or a portion of it, +either verbatim or with modifications and/or translated into another +language. (Hereinafter, translation is included without limitation in +the term "modification".) Each licensee is addressed as "you". + +Activities other than copying, distribution and modification are not +covered by this License; they are outside its scope. The act of +running the Program is not restricted, and the output from the Program +is covered only if its contents constitute a work based on the +Program (independent of having been made by running the Program). +Whether that is true depends on what the Program does. + + 1. You may copy and distribute verbatim copies of the Program's +source code as you receive it, in any medium, provided that you +conspicuously and appropriately publish on each copy an appropriate +copyright notice and disclaimer of warranty; keep intact all the +notices that refer to this License and to the absence of any warranty; +and give any other recipients of the Program a copy of this License +along with the Program. + +You may charge a fee for the physical act of transferring a copy, and +you may at your option offer warranty protection in exchange for a fee. + + 2. You may modify your copy or copies of the Program or any portion +of it, thus forming a work based on the Program, and copy and +distribute such modifications or work under the terms of Section 1 +above, provided that you also meet all of these conditions: + + a) You must cause the modified files to carry prominent notices + stating that you changed the files and the date of any change. + + b) You must cause any work that you distribute or publish, that in + whole or in part contains or is derived from the Program or any + part thereof, to be licensed as a whole at no charge to all third + parties under the terms of this License. + + c) If the modified program normally reads commands interactively + when run, you must cause it, when started running for such + interactive use in the most ordinary way, to print or display an + announcement including an appropriate copyright notice and a + notice that there is no warranty (or else, saying that you provide + a warranty) and that users may redistribute the program under + these conditions, and telling the user how to view a copy of this + License. (Exception: if the Program itself is interactive but + does not normally print such an announcement, your work based on + the Program is not required to print an announcement.) + +These requirements apply to the modified work as a whole. If +identifiable sections of that work are not derived from the Program, +and can be reasonably considered independent and separate works in +themselves, then this License, and its terms, do not apply to those +sections when you distribute them as separate works. But when you +distribute the same sections as part of a whole which is a work based +on the Program, the distribution of the whole must be on the terms of +this License, whose permissions for other licensees extend to the +entire whole, and thus to each and every part regardless of who wrote it. + +Thus, it is not the intent of this section to claim rights or contest +your rights to work written entirely by you; rather, the intent is to +exercise the right to control the distribution of derivative or +collective works based on the Program. + +In addition, mere aggregation of another work not based on the Program +with the Program (or with a work based on the Program) on a volume of +a storage or distribution medium does not bring the other work under +the scope of this License. + + 3. You may copy and distribute the Program (or a work based on it, +under Section 2) in object code or executable form under the terms of +Sections 1 and 2 above provided that you also do one of the following: + + a) Accompany it with the complete corresponding machine-readable + source code, which must be distributed under the terms of Sections + 1 and 2 above on a medium customarily used for software interchange; or, + + b) Accompany it with a written offer, valid for at least three + years, to give any third party, for a charge no more than your + cost of physically performing source distribution, a complete + machine-readable copy of the corresponding source code, to be + distributed under the terms of Sections 1 and 2 above on a medium + customarily used for software interchange; or, + + c) Accompany it with the information you received as to the offer + to distribute corresponding source code. (This alternative is + allowed only for noncommercial distribution and only if you + received the program in object code or executable form with such + an offer, in accord with Subsection b above.) + +The source code for a work means the preferred form of the work for +making modifications to it. For an executable work, complete source +code means all the source code for all modules it contains, plus any +associated interface definition files, plus the scripts used to +control compilation and installation of the executable. However, as a +special exception, the source code distributed need not include +anything that is normally distributed (in either source or binary +form) with the major components (compiler, kernel, and so on) of the +operating system on which the executable runs, unless that component +itself accompanies the executable. + +If distribution of executable or object code is made by offering +access to copy from a designated place, then offering equivalent +access to copy the source code from the same place counts as +distribution of the source code, even though third parties are not +compelled to copy the source along with the object code. + + 4. You may not copy, modify, sublicense, or distribute the Program +except as expressly provided under this License. Any attempt +otherwise to copy, modify, sublicense or distribute the Program is +void, and will automatically terminate your rights under this License. +However, parties who have received copies, or rights, from you under +this License will not have their licenses terminated so long as such +parties remain in full compliance. + + 5. You are not required to accept this License, since you have not +signed it. However, nothing else grants you permission to modify or +distribute the Program or its derivative works. These actions are +prohibited by law if you do not accept this License. Therefore, by +modifying or distributing the Program (or any work based on the +Program), you indicate your acceptance of this License to do so, and +all its terms and conditions for copying, distributing or modifying +the Program or works based on it. + + 6. Each time you redistribute the Program (or any work based on the +Program), the recipient automatically receives a license from the +original licensor to copy, distribute or modify the Program subject to +these terms and conditions. You may not impose any further +restrictions on the recipients' exercise of the rights granted herein. +You are not responsible for enforcing compliance by third parties to +this License. + + 7. If, as a consequence of a court judgment or allegation of patent +infringement or for any other reason (not limited to patent issues), +conditions are imposed on you (whether by court order, agreement or +otherwise) that contradict the conditions of this License, they do not +excuse you from the conditions of this License. If you cannot +distribute so as to satisfy simultaneously your obligations under this +License and any other pertinent obligations, then as a consequence you +may not distribute the Program at all. For example, if a patent +license would not permit royalty-free redistribution of the Program by +all those who receive copies directly or indirectly through you, then +the only way you could satisfy both it and this License would be to +refrain entirely from distribution of the Program. + +If any portion of this section is held invalid or unenforceable under +any particular circumstance, the balance of the section is intended to +apply and the section as a whole is intended to apply in other +circumstances. + +It is not the purpose of this section to induce you to infringe any +patents or other property right claims or to contest validity of any +such claims; this section has the sole purpose of protecting the +integrity of the free software distribution system, which is +implemented by public license practices. Many people have made +generous contributions to the wide range of software distributed +through that system in reliance on consistent application of that +system; it is up to the author/donor to decide if he or she is willing +to distribute software through any other system and a licensee cannot +impose that choice. + +This section is intended to make thoroughly clear what is believed to +be a consequence of the rest of this License. + + 8. If the distribution and/or use of the Program is restricted in +certain countries either by patents or by copyrighted interfaces, the +original copyright holder who places the Program under this License +may add an explicit geographical distribution limitation excluding +those countries, so that distribution is permitted only in or among +countries not thus excluded. In such case, this License incorporates +the limitation as if written in the body of this License. + + 9. The Free Software Foundation may publish revised and/or new versions +of the General Public License from time to time. Such new versions will +be similar in spirit to the present version, but may differ in detail to +address new problems or concerns. + +Each version is given a distinguishing version number. If the Program +specifies a version number of this License which applies to it and "any +later version", you have the option of following the terms and conditions +either of that version or of any later version published by the Free +Software Foundation. If the Program does not specify a version number of +this License, you may choose any version ever published by the Free Software +Foundation. + + 10. If you wish to incorporate parts of the Program into other free +programs whose distribution conditions are different, write to the author +to ask for permission. For software which is copyrighted by the Free +Software Foundation, write to the Free Software Foundation; we sometimes +make exceptions for this. Our decision will be guided by the two goals +of preserving the free status of all derivatives of our free software and +of promoting the sharing and reuse of software generally. + + NO WARRANTY + + 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY +FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN +OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES +PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED +OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS +TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE +PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, +REPAIR OR CORRECTION. + + 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR +REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, +INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING +OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED +TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY +YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER +PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE +POSSIBILITY OF SUCH DAMAGES. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) year name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. diff --git a/README.md b/README.md new file mode 100644 --- /dev/null +++ b/README.md @@ -0,0 +1,84 @@ +# plot-gtk-ui + +An ambitious attempt to provide mathematica like dynamic plotting for free. + +## Installation + +### Linux + +The installation for gtk requires that +[gtk2hs-buildtools](https://hackage.haskell.org/package/gtk2hs-buildtools) +be installed, and the binary be in your $PATH. The below commands take +care of that, without permanently changing the $PATH. + +```bash +$ cabal update +$ cabal install gtk2hs-buildtools +$ env PATH="~/.cabal/bin:$PATH" cabal install plot-gtk-ui +``` + +### Windows + +* Install gtk2hs with instructions from + [here](http://projects.haskell.org/gtk2hs/download/#Windows). + +* Then use cabal to install `plot-gtk-ui`. + +```batch +cmd> cabal install plot-gtk-ui +``` + +## Usage + +Import `Graphics.Rendering.Plot.Gtk.UI` and follow the examples below. + +```haskell +import Graphics.UI.Gtk +import Graphics.Rendering.Plot.Gtk.UI + +main = do + initGUI + plotStatic sin (-pi, pi) + -- Plot sin(x) from -pi to pi + mainGUI +``` + +![sinx](screenshots/sinx.png) + +Another simple example. + +```haskell +import Graphics.UI.Gtk +import Graphics.Rendering.Plot.Gtk.UI + +main = do + initGUI + plotDynamic (\(x, a) -> sin(a * x)) ((-pi, pi), (0, 1)) + -- Plot sin(a * x), where 'x' ranges from -pi to + -- pi and 'a' ranges between 0 to 1 + mainGUI +``` + +![sinax](screenshots/sinax.png) + +## Errors + +The error messages might not be completely correct, as there is not a good way to diagnose what caused the error. + +Issues that cause errors: + +- Invalid ranges, e.g. X-Range = `(1, -1)` +- Automatic-determination of ranges resulting in unplottable ranges, e.g. `(0, 0)` + +If you land on the "grey screen of on plots" or any other incorrect error message, please raise an issue here. + +## Implementation + +The `plotStatic` and `plotDynamic` functions are implemented in a +type-safe manner using `fixed-vector`. + +It also allows one to write functions using appropriate tuples as in the +above examples. + +Plotting is done using the excellent [plot](https://github.com/amcphail/plot) +package. diff --git a/Setup.lhs b/Setup.lhs new file mode 100644 --- /dev/null +++ b/Setup.lhs @@ -0,0 +1,3 @@ +#! /usr/bin/env runhaskell +> import Distribution.Simple +> main = defaultMain diff --git a/lib/Graphics/Rendering/Plot/Gtk/UI.hs b/lib/Graphics/Rendering/Plot/Gtk/UI.hs new file mode 100644 --- /dev/null +++ b/lib/Graphics/Rendering/Plot/Gtk/UI.hs @@ -0,0 +1,96 @@ +----------------------------------------------------------------------------- +-- | +-- Module : Graphics.Rendering.Plot.Gtk.UI +-- Copyright : (c) Sumit Sahrawat +-- License : GPL-2 +-- +-- Maintainer : sumit.sahrawat.apm13@iitbhu.ac.in +-- Stability : provisional +-- Portability : portable +-- +-- Quick plotting for functions + dynamic plotting of functions +-- +-- 'plotStatic' can be used to plot functions of the form /f(x)=.../ +-- +-- 'plotDynamic' can be used to plot functions of the form /f(x, a, b) = +-- .../ where /a/ and /b/ are additional parameters. Sliders are +-- provided for manipulating the values of /a/ and /b/, and the plot is +-- animated in real-time. +-- +-------------------------------------------------------------------------------- +{-# LANGUAGE FlexibleContexts #-} +{-# LANGUAGE TypeFamilies #-} + +module Graphics.Rendering.Plot.Gtk.UI + ( plotStatic + , plotDynamic + ) where + +-------------------------------------------------------------------------------- +-- Standard Libraries + +import Data.IORef (newIORef) + +-------------------------------------------------------------------------------- +-- Other Libraries + +import Data.Vector.Fixed (Dim, S, Vector, Z) +import qualified Data.Vector.Fixed as V +import Data.Vector.Fixed.Unboxed (Vec) + +-------------------------------------------------------------------------------- +-- Custom Modules + +import Paths_plot_gtk_ui (getDataFileName) +import Graphics.Rendering.Plot.Gtk.UI.PlotWindow +import Graphics.Rendering.Plot.Gtk.UI.Settings + +-------------------------------------------------------------------------------- + +defSet :: FigureSettings +defSet = defaultFigureSettings + +-------------------------------------------------------------------------------- + +-- | Quickly create AdjustmentSettings +argRange :: (Double, Double) -- ^ Lower and upper range + -> AdjustmentSettings +argRange (x, y) = aSetRange ((x + y) / 2) x y + +-------------------------------------------------------------------------------- + +-- | Plots functions of multiple arguments, provided all arguments +-- have specified ranges. +plot :: ([Double] -> Double -> Double) -- ^ Function + -> [(Double, Double)] -- ^ Ranges for all but the primary arg + -> FigureSettings -- ^ Should contain the primary range + -> IO () +plot func rangeTail fset = do + iofset <- newIORef fset + plotGlade <- getDataFileName "plot-window.glade" + plotWindow plotGlade iofset (map argRange rangeTail) func + +-------------------------------------------------------------------------------- + +-- | Plot functions that don't depend on extra parameters +plotStatic :: (Double -> Double) -- ^ Function to plot + -> (Double, Double) -- ^ Range for abscissa (horizontal axis) + -> IO () +plotStatic func r = + let f :: Vec (S Z) Double -> Double + f = func . V.head + in plotDynamic f ((V.convert . V.Only $ r) :: Vec (S Z) (Double, Double)) + +-------------------------------------------------------------------------------- + +-- | Plot functions that depend on extra parameters +plotDynamic :: (Vector u a, Vector v (a, a), + a ~ Double, Dim u ~ Dim v, Dim v ~ S n, V.Arity n) + => (u Double -> Double) + -> v (Double, Double) + -> IO () +plotDynamic func ranges = let (x:xs) = V.toList ranges + f zs z = func . V.fromList $ (z:zs) + in plot f xs defSet { xRange = Just x } + +-------------------------------------------------------------------------------- diff --git a/lib/Graphics/Rendering/Plot/Gtk/UI/Events.hs b/lib/Graphics/Rendering/Plot/Gtk/UI/Events.hs new file mode 100644 --- /dev/null +++ b/lib/Graphics/Rendering/Plot/Gtk/UI/Events.hs @@ -0,0 +1,224 @@ +----------------------------------------------------------------------------- +-- | +-- Module : Graphics.Rendering.Plot.Gtk.UI.Events +-- Copyright : (c) Sumit Sahrawat +-- License : GPL-2 +-- +-- Maintainer : sumit.sahrawat.apm13@iitbhu.ac.in +-- Stability : provisional +-- Portability : portable +-- +-- Attach event handlers for the plot window. +-- +-------------------------------------------------------------------------------- + +module Graphics.Rendering.Plot.Gtk.UI.Events (attachHandlers) where + +-------------------------------------------------------------------------------- +-- Standard Libraries + +import Data.Char (toLower) +import Data.IORef (IORef, modifyIORef, + readIORef) +import Data.Text (unpack) + +-------------------------------------------------------------------------------- +-- Other Libraries + +import Graphics.Rendering.Plot +import Graphics.UI.Gtk hiding (Circle, Color, + Cross) + +-------------------------------------------------------------------------------- +-- Custom Modules + +import Graphics.Rendering.Plot.Gtk.UI.Figure (figurePlot) +import Graphics.Rendering.Plot.Gtk.UI.Settings + +-------------------------------------------------------------------------------- + +attachHandlers :: (ComboBoxClass cbox) => + Builder + -> IORef FigureSettings + -> [Adjustment] + -> (DrawingArea -> IORef FigureSettings + -> [Adjustment] + -> IO ()) + -> ([Double] -> Double -> Double) + -> cbox + -> IO () +attachHandlers builder iofset adjs updateCanvas g combo = do + -- Canvas + canvas <- builderGetObject builder castToDrawingArea "Plotting Canvas" + let redraw = updateCanvas canvas iofset adjs + _ <- onExpose canvas $ \_ -> redraw >> return False + + -- Adjustments for parameter sliders + mapM_ (`onValueChanged` redraw) adjs + + -- Plot-Title Entry + titleEntry <- builderGetObject builder castToEntry "Plot Title Entry" + _ <- onEntryActivate titleEntry $ do + titleNew <- entryGetText titleEntry + modifyIORef iofset $ \f -> f { plotTitle = Just titleNew } + redraw + + -- Plot-Title Font Size + titleSize <- builderGetObject builder castToAdjustment "Title Font Size" + _ <- onValueChanged titleSize $ do + size <- adjustmentGetValue titleSize + modifyIORef iofset $ \f -> f { plotTitleSize = size } + redraw + + -- Subtitle Entry + subEntry <- builderGetObject builder castToEntry "Subtitle Entry" + _ <- onEntryActivate subEntry $ do + titleNew <- entryGetText subEntry + modifyIORef iofset $ \f -> f { subTitle = Just titleNew } + redraw + + -- Subtitle Font Size + subSize <- builderGetObject builder castToAdjustment "Subtitle Font Size" + _ <- onValueChanged subSize $ do + size <- adjustmentGetValue subSize + modifyIORef iofset $ \f -> f { subTitleSize = size } + redraw + + -- Show X-Axis CheckButton + showX <- builderGetObject builder castToCheckButton "X-Axis Check" + _ <- onToggled showX $ do + state <- toggleButtonGetActive showX + modifyIORef iofset + (\f -> f { showXAxis = state }) + redraw + + -- Show Y-Axis CheckButton + showY <- builderGetObject builder castToCheckButton "Y-Axis Check" + _ <- onToggled showY $ do + state <- toggleButtonGetActive showY + modifyIORef iofset + (\f -> f { showYAxis = state }) + redraw + + let adjustmentPairValues (a1, a2) = do v1 <- adjustmentGetValue a1 + v2 <- adjustmentGetValue a2 + return (v1, v2) + -- X-Axis Range + xLower <- builderGetObject builder castToAdjustment "X-Lower" + xUpper <- builderGetObject builder castToAdjustment "X-Upper" + let updateX x = onValueChanged x $ do + (xl, xu) <- adjustmentPairValues (xLower, xUpper) + modifyIORef iofset $ \f -> f { xRange = Just (xl, xu) } + redraw + in mapM_ updateX [xLower, xUpper] + + -- X-Range Auto-determination CheckBox + xRangeEntries <- builderGetObject builder castToHBox "X-Range Entries" + autoXCheck <- builderGetObject builder castToCheckButton "X-Range Check" + _ <- onToggled autoXCheck $ do + state <- toggleButtonGetActive autoXCheck + if state + then error "Invalid xRange" + -- do modifyIORef iofset $ \f -> f { xRange = Nothing } + -- widgetHideAll xRangeEntries + else do lower <- builderGetObject builder castToAdjustment "X-Lower" + upper <- builderGetObject builder castToAdjustment "X-Upper" + (l, u) <- adjustmentPairValues (lower, upper) + widgetShowAll xRangeEntries + modifyIORef iofset $ \f -> f { xRange = Just (l, u) } + redraw + + -- Y-Axis Range + yLower <- builderGetObject builder castToAdjustment "Y-Lower" + yUpper <- builderGetObject builder castToAdjustment "Y-Upper" + let updateY y = onValueChanged y $ do + (yl, yu) <- adjustmentPairValues (yLower, yUpper) + modifyIORef iofset $ \f -> f { yRange = Just (yl, yu) } + redraw + in mapM_ updateY [yLower, yUpper] + + -- Y-Range Auto-determination CheckBox + yRangeEntries <- builderGetObject builder castToHBox "Y-Range Entries" + autoYCheck <- builderGetObject builder castToCheckButton "Y-Range Check" + _ <- onToggled autoYCheck $ do + state <- toggleButtonGetActive autoYCheck + if state + then do modifyIORef iofset $ \f -> f { yRange = Nothing } + widgetHideAll yRangeEntries + else do lower <- builderGetObject builder castToAdjustment "Y-Lower" + upper <- builderGetObject builder castToAdjustment "Y-Upper" + (l, u) <- adjustmentPairValues (lower, upper) + widgetShowAll yRangeEntries + modifyIORef iofset $ \f -> f { yRange = Just (l, u) } + redraw + + -- Sampling Rate + sampleRate <- builderGetObject builder castToAdjustment "Sampling Adj" + _ <- onValueChanged sampleRate $ do + rate <- adjustmentGetValue sampleRate + modifyIORef iofset $ \f -> f { samplingRate = rate } + redraw + + -- X-Label Entry + xLabelEntry <- builderGetObject builder castToEntry "X-Label Entry" + _ <- onEntryActivate xLabelEntry $ do + label' <- entryGetText xLabelEntry + modifyIORef iofset $ \f -> f { xLabel = Just label' } + redraw + + -- X-Label Size + xlSize <- builderGetObject builder castToAdjustment "X-Label Size" + _ <- onValueChanged xlSize $ do + size <- adjustmentGetValue xlSize + modifyIORef iofset $ \f -> f { xLabelSize = size } + redraw + + -- Y-Label Entry + yLabelEntry <- builderGetObject builder castToEntry "Y-Label Entry" + _ <- onEntryActivate yLabelEntry $ do + label' <- entryGetText yLabelEntry + modifyIORef iofset $ \f -> f { yLabel = Just label' } + redraw + + ylSize <- builderGetObject builder castToAdjustment "Y-Label Size" + _ <- onValueChanged ylSize $ do + size <- adjustmentGetValue ylSize + modifyIORef iofset $ \f -> f { yLabelSize = size } + redraw + + -- Export Filename extry + + -- Export Button + export <- builderGetObject builder castToButton "Export Button" + _ <- onClicked export $ do + fset <- readIORef iofset + comboText <- comboBoxGetActiveText combo + nameEntry <- builderGetObject builder castToEntry "File Entry" + nameText <- entryGetText nameEntry + + modifyIORef iofset $ \f -> f { fileName = nameText } + + figure <- figurePlot g iofset adjs + + let dimensions = exportSize fset + + parseType txt = case txt of + "PNG" -> PNG + "SVG" -> SVG + "PS" -> PS + "PDF" -> PDF + _ -> error "Invalid FileType!" + + filetype = parseType $ maybe (error "Invalid Type!") unpack comboText + + parseExt fileType = case fileType of + PNG -> "PNG" + SVG -> "SVG" + PS -> "PS" + PDF -> "PDF" + + filename = nameText ++ "." ++ map toLower (parseExt filetype) + writeFigure filetype filename dimensions figure + return () + +-------------------------------------------------------------------------------- diff --git a/lib/Graphics/Rendering/Plot/Gtk/UI/Figure.hs b/lib/Graphics/Rendering/Plot/Gtk/UI/Figure.hs new file mode 100644 --- /dev/null +++ b/lib/Graphics/Rendering/Plot/Gtk/UI/Figure.hs @@ -0,0 +1,119 @@ +----------------------------------------------------------------------------- +-- | +-- Module : Graphics.Rendering.Plot.Gtk.UI +-- Copyright : (c) Sumit Sahrawat +-- License : GPL-2 +-- +-- Maintainer : sumit.sahrawat.apm13@iitbhu.ac.in +-- Stability : provisional +-- Portability : portable +-- +-- Functions to build and make changes to 'Figure's +-- +-------------------------------------------------------------------------------- + +module Graphics.Rendering.Plot.Gtk.UI.Figure where + +-------------------------------------------------------------------------------- +-- Standard Libraries + +import Control.Monad (unless, when) +import Data.IORef (IORef, readIORef) +import Data.Maybe (fromJust, isJust) + +-------------------------------------------------------------------------------- +-- Other Libraries + +-- import Data.Colour.SRGB (sRGB24read) +import Graphics.Rendering.Plot +import Graphics.UI.Gtk (Adjustment, + adjustmentGetValue) +import Numeric.LinearAlgebra (linspace, mapVector) + +-------------------------------------------------------------------------------- +-- Custom Modules + +import Graphics.Rendering.Plot.Gtk.UI.Settings + +-------------------------------------------------------------------------------- + +updateFigureText :: (Text () -> Figure ()) + -> Maybe String -> Double -> Figure () +updateFigureText withSomething txt size = + case txt of + Nothing -> return () + Just str -> withSomething . unless (null str) $ do + setText str + setFontSize size + +-------------------------------------------------------------------------------- + +updateAxis :: AxisType -> Bool -> (AxisPosn, AxisSide) -> Maybe (Double, Double) + -> Scale -> Maybe String -> FontSize -> Plot () +updateAxis axis state location range scale label size = do + let (position, side) = location + + when state $ addAxis axis position + (when (isJust label) $ withAxisLabel $ do setText . fromJust $ label + setFontSize size) + + maybe (setRangeFromData axis side scale) + (uncurry (setRange axis side scale)) + range + +-------------------------------------------------------------------------------- + +figurePlot :: ([Double] -> Double -> Double) + -> IORef FigureSettings + -> [Adjustment] + -> IO (Figure ()) +figurePlot g iofset adjs = do + fset <- readIORef iofset + vars <- mapM adjustmentGetValue adjs + + let rate = samplingRate fset + range = fromJust $ xRange fset + samples = round $ (\(x, y) -> rate * (y - x)) range + domain = linspace samples range + func = g vars + stype = plotType fset + dset = [(stype, domain, mapVector func domain)] + return $ buildFigure dset fset + +-------------------------------------------------------------------------------- + +buildFigure :: Dataset a => a -> FigureSettings -> Figure () +buildFigure dset fset = do + withTextDefaults $ setFontFamily (fontFamily fset) + + let str = plotTitle fset + size = plotTitleSize fset + in updateFigureText withTitle str size + + let str = subTitle fset + size = subTitleSize fset + in updateFigureText withSubTitle str size + + setPlots 1 1 + withPlot (1, 1) $ do + setDataset dset + + -- X-Axis + let state = showXAxis fset + label = xLabel fset + size = xLabelSize fset + loc = xLocation fset + range = xRange fset + scale = plotScaleX fset + in updateAxis XAxis state loc range scale label size + + -- Y-Axis + let state = showYAxis fset + label = yLabel fset + size = yLabelSize fset + loc = yLocation fset + range = yRange fset + scale = plotScaleY fset + in updateAxis YAxis state loc range scale label size + +-------------------------------------------------------------------------------- diff --git a/lib/Graphics/Rendering/Plot/Gtk/UI/PlotWindow.hs b/lib/Graphics/Rendering/Plot/Gtk/UI/PlotWindow.hs new file mode 100644 --- /dev/null +++ b/lib/Graphics/Rendering/Plot/Gtk/UI/PlotWindow.hs @@ -0,0 +1,168 @@ +----------------------------------------------------------------------------- +-- | +-- Module : Graphics.Rendering.Plot.Gtk.UI +-- Copyright : (c) Sumit Sahrawat +-- License : GPL-2 +-- +-- Maintainer : sumit.sahrawat.apm13@iitbhu.ac.in +-- Stability : provisional +-- Portability : portable +-- +-- Functions related to the plot window +-- +-------------------------------------------------------------------------------- + +module Graphics.Rendering.Plot.Gtk.UI.PlotWindow where + +-------------------------------------------------------------------------------- +-- Standard Libraries + +import Control.Exception (SomeException (..), + catch) +import Control.Monad (when) +import Data.IORef (IORef, readIORef) +import Data.Maybe (fromJust, isJust, + isNothing) +import Data.Text (pack) + +-------------------------------------------------------------------------------- +-- Other Libraries + +import Graphics.Rendering.Plot +import Graphics.UI.Gtk + +-------------------------------------------------------------------------------- +-- Custom Modules + +import Graphics.Rendering.Plot.Gtk.UI.ErrorFig (errorFig) +import Graphics.Rendering.Plot.Gtk.UI.Events (attachHandlers) +import Graphics.Rendering.Plot.Gtk.UI.Figure (figurePlot) +import Graphics.Rendering.Plot.Gtk.UI.Settings + +-------------------------------------------------------------------------------- + +updateCanvas :: ([Double] -> Double -> Double) + -> DrawingArea + -> IORef FigureSettings + -> [Adjustment] + -> IO () +updateCanvas g canvas iofset adjs = do + s@(w, h) <- widgetGetSize canvas + drw <- widgetGetDrawWindow canvas + fig <- figurePlot g iofset adjs + + box <- regionRectangle $ Rectangle 0 0 w h + drawWindowBeginPaintRegion drw box + catch (renderWithDrawable drw (render fig s)) + (\(SomeException _) -> do + fset <- readIORef iofset + renderWithDrawable drw (errorFig fset s)) + drawWindowEndPaint drw + +-------------------------------------------------------------------------------- + +addSlidersToBox :: [AdjustmentSettings] -> VBox -> IO [Adjustment] +addSlidersToBox conf box = do + let newAdj (ASet a b c d e f) = adjustmentNew a b c d e f + newAdjList = mapM newAdj + newHScaleList = mapM hScaleNew + + adjs <- newAdjList conf + sliders <- newHScaleList adjs + mapM_ (`scaleSetValuePos` PosRight) sliders + mapM_ (`scaleSetDigits` 2) sliders + mapM_ (\x -> boxPackEnd box x PackNatural 0) sliders + return adjs + +-------------------------------------------------------------------------------- + +plotWindow :: String -> IORef FigureSettings -> [AdjustmentSettings] + -> ([Double] -> Double -> Double) -> IO () +plotWindow plotGlade iofset conf fun = do + builder <- builderNew + builderAddFromFile builder plotGlade + + plotBox <- builderGetObject builder castToVBox "Plot Region" + adjs <- addSlidersToBox conf plotBox + fset <- readIORef iofset + + let updateEntryText entryGlade txt = + when (isJust txt) $ do entry <- builderGetObject builder + castToEntry entryGlade + entrySetText entry $ fromJust txt + in do updateEntryText "Plot Title Entry" $ plotTitle fset + updateEntryText "Subtitle Entry" $ subTitle fset + updateEntryText "X-Label Entry" $ xLabel fset + updateEntryText "Y-Label Entry" $ yLabel fset + updateEntryText "File Entry" $ Just (fileName fset) + + let adjApplyValue adjGlade val = do + adj <- builderGetObject builder castToAdjustment adjGlade + adjustmentSetValue adj val + in do adjApplyValue "Title Font Size" $ plotTitleSize fset + adjApplyValue "Subtitle Font Size" $ subTitleSize fset + adjApplyValue "Sampling Adj" $ samplingRate fset + adjApplyValue "X-Label Size" $ xLabelSize fset + adjApplyValue "Y-Label Size" $ yLabelSize fset + + let checkApplyState checkGlade state = do + check <- builderGetObject builder castToCheckButton checkGlade + toggleButtonSetActive check state + in do checkApplyState "X-Axis Check" $ showXAxis fset + checkApplyState "Y-Axis Check" $ showYAxis fset + checkApplyState "Y-Range Check" $ isNothing . yRange $ fset + + when (isJust . yRange $ fset) $ do + let (l, u) = fromJust . yRange $ fset + lower <- builderGetObject builder castToAdjustment "Y-Lower" + upper <- builderGetObject builder castToAdjustment "Y-Upper" + adjustmentSetValue lower l + adjustmentSetValue upper u + + -- X-Axis Range + let range = xRange fset + in if isNothing range + then error "Invalid xRange" + else let (l, u) = fromJust range + in do lower <- builderGetObject builder castToAdjustment "X-Lower" + upper <- builderGetObject builder castToAdjustment "X-Upper" + adjustmentSetValue lower l + adjustmentSetValue upper u + + -- Export Size + let (w, h) = exportSize fset + in do widthAdj <- builderGetObject builder castToAdjustment "Export Width" + heightAdj <- builderGetObject builder castToAdjustment "Export Height" + adjustmentSetValue widthAdj $ fromIntegral w + adjustmentSetValue heightAdj $ fromIntegral h + + -- Export ComboBox + combo <- comboBoxNewText + _ <- mapM (\(x, y) -> comboBoxInsertText combo x $ pack y) + [(1, "PNG"), (2, "SVG"), (3, "PS"), (4, "PDF")] + comboBoxSetActive combo 0 + + comboArea <- builderGetObject builder castToHBox "File Name" + boxPackEndDefaults comboArea combo + + -- Attach Event Handlers + _ <- attachHandlers builder iofset adjs (updateCanvas fun) fun combo + + -- Show Widgets + window <- builderGetObject builder castToWindow "Plot Window" + widgetShowAll window + + -- Hide the useless checkButton for now + check <- builderGetObject builder castToCheckButton "X-Range Check" + widgetHide check + + -- Hide the entries if not required + let range = yRange fset + in when (isNothing range) $ do + entries <- builderGetObject builder castToHBox "Y-Range Entries" + widgetHideAll entries + + _ <- onDestroy window mainQuit + return () + +-------------------------------------------------------------------------------- diff --git a/lib/Graphics/Rendering/Plot/Gtk/UI/Settings.hs b/lib/Graphics/Rendering/Plot/Gtk/UI/Settings.hs new file mode 100644 --- /dev/null +++ b/lib/Graphics/Rendering/Plot/Gtk/UI/Settings.hs @@ -0,0 +1,96 @@ +----------------------------------------------------------------------------- +-- | +-- Module : Graphics.Rendering.Plot.Gtk.UI +-- Copyright : (c) Sumit Sahrawat +-- License : GPL-2 +-- +-- Maintainer : sumit.sahrawat.apm13@iitbhu.ac.in +-- Stability : provisional +-- Portability : portable +-- +-- Helper functions and data for the figures and sliders +-- +-------------------------------------------------------------------------------- +module Graphics.Rendering.Plot.Gtk.UI.Settings + ( FigureSettings (..) + , defaultFigureSettings + , AdjustmentSettings (..) + , aSetRange + ) where + +-------------------------------------------------------------------------------- +-- Datatypes used by plot package for configuration + +import Graphics.Rendering.Plot (AxisPosn (..), AxisSide (..), + Scale (..), SeriesType (..)) + +-------------------------------------------------------------------------------- + +data FigureSettings = FigureSettings { + fontFamily :: String + , plotTitle :: Maybe String + , plotTitleSize :: Double + , subTitle :: Maybe String + , subTitleSize :: Double + , xRange :: Maybe (Double, Double) + , yRange :: Maybe (Double, Double) + , samplingRate :: Double + , xLabel :: Maybe String + , xLabelSize :: Double + , yLabel :: Maybe String + , yLabelSize :: Double + , showXAxis :: Bool + , xLocation :: (AxisPosn, AxisSide) + , showYAxis :: Bool + , yLocation :: (AxisPosn, AxisSide) + , plotScaleX :: Scale + , plotScaleY :: Scale + , exportSize :: (Int, Int) + , fileName :: String + , plotType :: SeriesType + } + +-------------------------------------------------------------------------------- + +defaultFigureSettings :: FigureSettings +defaultFigureSettings = FigureSettings { + fontFamily = "Sans" + , plotTitle = Nothing + , plotTitleSize = 10 + , subTitle = Nothing + , subTitleSize = 10 + , xRange = Nothing + , yRange = Nothing + , samplingRate = 50 + , xLabel = Nothing + , xLabelSize = 10 + , yLabel = Nothing + , yLabelSize = 10 + , showXAxis = True + , xLocation = (Side Lower, Lower) + , showYAxis = True + , yLocation = (Side Lower, Lower) + , plotScaleX = Linear + , plotScaleY = Linear + , exportSize = (1000, 1000) + , fileName = "plot" + , plotType = Line + } + +-------------------------------------------------------------------------------- + +data AdjustmentSettings = ASet { + initVal :: Double + , minBound :: Double + , maxBound :: Double + , stepIncr :: Double + , pageIncr :: Double + , pageSize :: Double + } + +-------------------------------------------------------------------------------- + +aSetRange :: Double -> Double -> Double -> AdjustmentSettings +aSetRange x y z = ASet x y z 0.01 0.01 0.00 + +-------------------------------------------------------------------------------- diff --git a/plot-gtk-ui.cabal b/plot-gtk-ui.cabal new file mode 100644 --- /dev/null +++ b/plot-gtk-ui.cabal @@ -0,0 +1,49 @@ +Name: plot-gtk-ui +Version: 0.0.1.0 +License: GPL-2 +License-file: LICENSE +Author: Sumit Sahrawat +Maintainer: sumit.sahrawat.apm13@iitbhu.ac.in +Stability: experimental +Homepage: https://github.com/sumitsahrawat/plot-gtk-ui +Synopsis: A quick way to use Mathematica like Manipulation abilities +Description: + A pre-built ui for plotting based on plot. Quicker to use than + plot-gtk, but less configurable, and less versatile. + . + Only provides ability to plot mathematical functions. But, also + allows dynamic plotting functionality similar to Mathematica. + +Category: Math + +Tested-with: GHC==7.8.3 +Cabal-version: >=1.18 +Build-type: Simple + +Extra-source-files: README.md +Data-dir: ui +Data-files: plot-window.glade + +Library + Build-depends: base >=4.7 && <4.8 + , colour >=2.3 && <2.4 + , plot >=0.2 && <0.3 + , gtk >=0.13 && <0.14 + , cairo >=0.13 && <0.14 + , hmatrix >=0.16 && <0.17 + , text >=1.2 && <1.3 + , vector >=0.10.12.2 && <0.10.13.0 + , fixed-vector >=0.7.0.0 + hs-source-dirs: lib + exposed-modules: Graphics.Rendering.Plot.Gtk.UI + other-modules: Paths_plot_gtk_ui + , Graphics.Rendering.Plot.Gtk.UI.Events + , Graphics.Rendering.Plot.Gtk.UI.Figure + , Graphics.Rendering.Plot.Gtk.UI.Settings + , Graphics.Rendering.Plot.Gtk.UI.PlotWindow + ghc-options: -Wall + default-language: Haskell2010 + +source-repository head + type: git + location: https://github.com/sumitsahrawat/plot-gtk-ui.git diff --git a/ui/plot-window.glade b/ui/plot-window.glade new file mode 100644 --- /dev/null +++ b/ui/plot-window.glade @@ -0,0 +1,958 @@ + + + + + + 1 + 5120 + 1 + 50 + 200 + + + 1 + 5120 + 1 + 50 + 200 + + + 1 + 1000 + 1 + 0.050000000000000003 + 0.5 + + + 1 + 72 + 1 + 0.5 + 1 + + + 1 + 72 + 1 + 0.5 + 1 + + + 1 + 72 + 1 + 0.5 + 1 + + + -1.7976931348623157e+308 + 1.7976931348623157e+308 + 0.01 + 1 + + + -1.7976931348623157e+308 + 1.7976931348623157e+308 + 0.01 + 1 + + + 1 + 72 + 1 + 0.5 + 1 + + + -1.7976931348623157e+308 + 1.7976931348623157e+308 + 0.01 + 1 + + + -1.7976931348623157e+308 + 1.7976931348623157e+308 + 0.01 + 1 + + + False + 1 + Your Plot + + + True + False + + + True + False + 5 + + + True + False + 0 + in + + + 500 + 500 + True + False + GDK_EXPOSURE_MASK | GDK_STRUCTURE_MASK + + + + + True + True + end + 0 + + + + + True + True + 0 + + + + + True + False + + + False + True + 1 + + + + + True + True + never + automatic + + + True + False + none + + + 250 + True + False + 10 + + + True + False + 3 + 0 + in + + + True + False + 3 + 2 + + + True + True + ● + True + False + False + True + True + + + True + True + 0 + + + + + True + True + ● + 0.5 + False + False + True + True + Title Font Size + 1 + True + True + if-valid + + + True + True + 1 + + + + + + + True + False + <b>Plot Title</b> + True + + + + + False + True + 0 + + + + + True + False + 3 + 0 + in + + + True + False + 3 + 2 + + + True + True + ● + True + True + False + False + True + True + + + True + True + 0 + + + + + True + True + ● + 0.5 + False + False + True + True + Subtitle Font Size + 1 + True + True + if-valid + + + True + True + 1 + + + + + + + True + False + <b>Subtitle</b> + True + + + + + False + True + 1 + + + + + True + False + 3 + 0 + in + + + True + False + 3 + + + Show X-Axis + True + True + False + True + True + + + True + True + 0 + + + + + Show Y-Axis + True + True + False + True + True + + + True + True + 1 + + + + + + + True + False + <b>Axes</b> + True + + + + + False + True + 2 + + + + + True + False + 3 + 0 + in + + + True + False + 3 + + + Auto-Determine X-Range + True + True + False + True + + + True + True + 0 + + + + + True + False + 2 + True + + + True + True + ● + 0.25 + False + False + True + True + X-Lower + 2 + True + + + True + True + 0 + + + + + True + True + ● + 0.25 + False + False + True + True + X-Upper + 2 + True + + + True + True + 1 + + + + + True + True + 1 + + + + + + + True + False + <b>X-Range</b> + True + + + + + False + True + 3 + + + + + True + False + 3 + 0 + in + + + True + False + 2 + + + Auto-Determine Y-Range + True + True + False + True + + + True + True + 0 + + + + + True + False + 2 + True + + + True + True + ● + 0.25 + False + False + True + True + Y-Lower + 2 + True + + + True + True + 0 + + + + + True + True + ● + 0.25 + False + False + True + True + Y-Upper + 2 + True + + + True + True + 1 + + + + + True + True + 1 + + + + + + + True + False + <b>Y-Range</b> + True + + + + + False + True + 4 + + + + + True + False + 3 + 0 + in + + + True + False + 3 + + + True + True + ● + False + False + True + True + Sampling Adj + 1 + True + True + if-valid + + + True + True + 0 + + + + + + + True + False + <b>Sampling Rate</b> + True + + + + + False + True + 5 + + + + + True + False + 3 + 0 + in + + + True + False + + + True + False + + + True + False + 2 + 2 + + + True + True + ● + True + False + False + True + True + + + True + True + 0 + + + + + True + True + ● + 0.5 + False + False + True + True + X-Label Size + 1 + True + True + if-valid + + + True + True + 1 + + + + + True + True + -1 + + + + + True + False + X-Axis Label + True + + + True + True + 0 + + + + + True + True + 0 + + + + + True + False + + + True + False + 2 + 2 + + + True + True + ● + True + False + False + True + True + + + True + True + 0 + + + + + True + True + ● + 0.5 + False + False + True + True + Y-Label Size + 1 + True + True + if-valid + + + True + True + 1 + + + + + True + True + -1 + + + + + True + False + Y-Axis Label + + + True + True + 0 + + + + + True + True + 1 + + + + + + + True + False + <b>Labels</b> + True + + + + + False + True + 6 + + + + + True + False + 3 + 0 + in + + + True + False + 1 + + + True + False + 2 + + + True + False + Dimensions + + + True + True + 0 + + + + + True + False + 2 + True + + + True + True + ● + 0.25 + False + False + True + True + Export Width + True + if-valid + + + True + True + 0 + + + + + True + True + ● + 0.25 + False + False + True + True + Export Height + True + if-valid + + + True + True + 1 + + + + + True + True + 1 + + + + + True + True + 0 + + + + + True + False + + + True + False + File Name & Type + + + True + True + 0 + + + + + True + False + 1 + 2 + + + True + True + File Name + ● + True + False + False + True + True + + + True + True + 0 + + + + + + + + True + True + 1 + + + + + True + True + 1 + + + + + Export + True + True + True + + + True + True + 2 + + + + + + + True + False + <b>Export</b> + True + + + + + False + True + 7 + + + + + + + + + False + True + 2 + + + + + +