1.0.7 release features

* new widgets: IntegerField, DecimalField, Slider
* new validator: RegexValidator
* new Option Helpers: from gooey import options
* new option: placeholder

gooey/__init__.py

@@ -4,4 +4,5 @@ from gooey.python_bindings.gooey_parser import GooeyParser
 from gooey.gui.util.freeze import localResourcePath as local_resource_path
 from gooey.python_bindings import constants
 from gooey.gui.components.filtering.prefix_filter import PrefixTokenizers
+from gooey.gui.components.options import options
 __version__ = '1.0.6'

gooey/gui/components/filtering/prefix_filter.py

@@ -18,7 +18,9 @@ class PrefixTokenizers:
     def REGEX(cls, expression):
         return expression
 
-
+class OperatorType:
+    AND = 'AND'
+    OR = 'OR'
 
 class SearchOptions:
     def __init__(self,

gooey/gui/components/footer.py

@@ -18,7 +18,10 @@ class Footer(wx.Panel):
         self.buildSpec = buildSpec
 
         self.SetMinSize((30, 53))
-        self.SetDoubleBuffered(True)
+        # TODO: The was set to True for the timer addition
+        #       however, it leads to 'tearing' issues when resizing
+        #       the GUI in windows. Disabling until I can dig into it.
+        self.SetDoubleBuffered(False)
         # components
         self.cancel_button = None
         self.start_button = None

gooey/gui/components/options/options.py

@@ -0,0 +1,300 @@
+from gooey.gui.components.filtering.prefix_filter import PrefixTokenizers
+
+
+
+def _include_layout_docs(f):
+    """
+    Combines the layout_options docsstring with the
+    wrapped function's doc string.
+    """
+    f.__doc__ = (f.__doc__ or '') + LayoutOptions.__doc__
+    return f
+
+
+def _include_chooser_msg_wildcard_docs(f):
+    """
+    Combines the basic Chooser options (wildard, message) docsstring
+    with the wrapped function's doc string.
+    """
+    _doc = """:param wildcard: Sets the wildcard, which can contain multiple file types, for 
+                     example: "BMP files (.bmp)|.bmp|GIF files (.gif)|.gif"
+    :param message:  Sets the message that will be displayed on the dialog.
+    """
+    f.__doc__ = (f.__doc__ or '') + _doc
+    return f
+
+def _include_choose_dir_file_docs(f):
+    """
+        Combines the basic Chooser options (wildard, message) docsstring
+        with the wrapped function's doc string.
+        """
+    _doc = """:param default_dir: The default directory selected when the dialog spawns 
+    :param default_file: The default filename used in the dialog
+    """
+    f.__doc__ = (f.__doc__ or '') + _doc
+    return f
+
+
+
+def LayoutOptions(label_color=None,
+                  label_bg_color=None,
+                  help_color=None,
+                  help_bg_color=None,
+                  error_color=None,
+                  error_bg_color=None,
+                  show_label=True,
+                  show_help=True,
+                  visible=True,
+                  full_width=False):
+    """
+    Layout Options:
+    ---------------
+
+    Color options can be passed either as a hex string ('#ff0000') or as
+    a collection of RGB values (e.g. `[255, 0, 0]` or `(255, 0, 0)`)
+
+    :param label_color:    The foreground color of the label text
+    :param label_bg_color: The background color of the label text.
+    :param help_color:     The foreground color of the help text.
+    :param help_bg_color:  The background color of the help text.
+    :param error_color:    The foreground color of the error text (when visible).
+    :param error_bg_color: The background color of the error text (when visible).
+    :param show_label:     Toggles whether or not to display the label text
+    :param show_help:      Toggles whether or not to display the help text
+    :param visible:        Hides the entire widget when False. Note: the widget
+                           is still present in the UI and will still send along any
+                           default values that have been provided in code. This option
+                           is here for when you want to hide certain advanced / dangerous
+                           inputs from your GUI users.
+    :param full_width:     This is a layout hint for this widget. When True the widget
+                           will fill the entire available space within a given row.
+                           Otherwise, it will be sized based on the column rules
+                           provided elsewhere.
+    """
+    return _clean(locals())
+
+
+@_include_layout_docs
+def TextField(validator=None, **layout_options):
+    return _clean(locals())
+
+
+@_include_layout_docs
+def PasswordField(validator=None, **layout_options):
+    return _clean(locals())
+
+
+@_include_layout_docs
+def IntegerField(validator=None, min=0, max=100, increment=1, **layout_options):
+    """
+    :param min: The minimum value allowed
+    :param max: The maximum value allowed
+    :param increment: The step size of the spinner
+    """
+    return _clean(locals())
+
+@_include_layout_docs
+def Slider(validator=None, min=0, max=100, increment=1, **layout_options):
+    """
+    :param min: The minimum value allowed
+    :param max: The maximum value allowed
+    :param increment: The step size of the slider
+    """
+    return _clean(locals())
+
+
+@_include_layout_docs
+def DecimalField(validator=None,
+                 min=0.0,
+                 max=1.0,
+                 increment=0.01,
+                 precision=2,
+                 **layout_options):
+    """
+    :param min: The minimum value allowed
+    :param max: The maximum value allowed
+    :param increment: The step size of the spinner
+    :param precision: The precision of the decimal (0-20)
+    """
+    return _clean(locals())
+
+
+@_include_layout_docs
+def TextArea(height=None, readonly=False, validator=None, **layout_options):
+    """
+    :param height:   The height of the TextArea.
+    :param readonly: Controls whether or not user's may modify the contents
+    """
+    return _clean(locals())
+
+
+@_include_layout_docs
+def RichTextConsole(**layout_options):
+    return _clean(locals())
+
+
+@_include_layout_docs
+def ListBox(height=None, **layout_options):
+    """
+    :param height: The height of the ListBox
+    """
+    return _clean(locals())
+
+# TODO: what are this guy's layout options..?
+def MutexGroup(initial_selection=None, title=None, **layout_options):
+    """
+    :param initial_selection: The index of the option which should be initially selected.
+    :param title:             Adds the supplied title above the RadioGroup options (when present)
+    """
+    return _clean(locals())
+
+
+@_include_layout_docs
+def Dropdown(**layout_options):
+    return _clean(locals())
+
+
+@_include_layout_docs
+def Counter(**layout_options):
+    return _clean(locals())
+
+
+@_include_layout_docs
+def CheckBox(**layout_options):
+    return _clean(locals())
+
+
+@_include_layout_docs
+def BlockCheckBox(checkbox_label=None, **layout_options):
+    return _clean(locals())
+
+
+@_include_layout_docs
+def FilterableDropdown(placeholder=None,
+                       empty_message=None,
+                       max_size=80,
+                       search_strategy=None,
+                       **layout_options):
+    """
+    :param placeholder:     Text to display when the user has provided no input
+    :param empty_message:   Text to display if the user's query doesn't match anything
+    :param max_size:        maximum height of the dropdown
+    :param search_strategy: see: PrefixSearchStrategy
+    """
+    return _clean(locals())
+
+
+def PrefixSearchStrategy(
+                   choice_tokenizer=PrefixTokenizers.WORDS,
+                   input_tokenizer=PrefixTokenizers.REGEX('\s'),
+                   ignore_case=True,
+                   operator='AND',
+                   index_suffix=False):
+    """
+    :param choice_tokenizer: See: PrefixTokenizers - sets the tokenization strategy
+                             for the `choices`
+    :param input_tokenizer:  See: PrefixTokenizers sets how the users's `input` get tokenized.
+    :param ignore_case:      Controls whether or not to honor case while searching
+    :param operator:         see: `OperatorType` - controls whether or not individual
+                             search tokens
+                             get `AND`ed or `OR`d together when evaluating a match.
+    :param index_suffix:     When enabled, generates a suffix-tree to enable efficient
+                             partial-matching against any of the tokens.
+    """
+    return {**_clean(locals()), 'type': 'PrefixFilter'}
+
+
+@_include_layout_docs
+@_include_choose_dir_file_docs
+@_include_chooser_msg_wildcard_docs
+def FileChooser(wildcard=None,
+                default_dir=None,
+                default_file=None,
+                message=None,
+                **layout_options):
+    return _clean(locals())
+
+
+@_include_layout_docs
+@_include_chooser_msg_wildcard_docs
+def DirectoryChooser(wildcard=None,
+                    default_path=None,
+                    message=None,
+                    **layout_options):
+    """
+    :param default_path: The default path selected when the dialog spawns
+    """
+    return _clean(locals())
+
+
+@_include_layout_docs
+@_include_choose_dir_file_docs
+@_include_chooser_msg_wildcard_docs
+def FileSaver(wildcard=None,
+              default_dir=None,
+              default_file=None,
+              message=None,
+              **layout_options):
+    return _clean(locals())
+
+
+@_include_layout_docs
+@_include_choose_dir_file_docs
+@_include_chooser_msg_wildcard_docs
+def MultiFileSaver(wildcard=None,
+              default_dir=None,
+              default_file=None,
+              message=None,
+              **layout_options):
+    return _clean(locals())
+
+
+def ExpressionValidator(test=None, message=None):
+    """
+    Creates the data for a basic expression validator.
+
+    Your test function can be made up of any valid Python expression.
+    It receives the variable user_input as an argument against which to
+    perform its validation. Note that all values coming from Gooey
+    are in the form of a string, so you'll have to cast as needed
+    in order to perform your validation.
+    """
+    return {**_clean(locals()), 'type': 'ExpressionValidator'}
+
+
+def RegexValidator(test=None, message=None):
+    """
+    Creates the data for a basic RegexValidator.
+
+    :param test:    the regex expression. This should be the expression
+                    directly (i.e. `test='\d+'`). Gooey will test
+                    that the user's input satisfies this expression.
+    :param message: The message to display if the input doesn't match
+                    the regex
+    """
+    return {**_clean(locals()), 'type': 'RegexValidator'}
+
+
+def ArgumentGroup(show_border=False,
+                  show_underline=True,
+                  label_color=None,
+                  columns=None,
+                  margin_top=None):
+    """
+    :param show_border:    When True a labeled border will surround all widgets added to this group.
+    :param show_underline: Controls whether or not to display the underline when using the default border style
+    :param label_color:    The foreground color for the group name
+    :param columns:        Controls the number of widgets on each row
+    :param margin_top:     specifies the top margin in pixels for this group
+    """
+    return _clean(locals())
+
+
+
+
+
+def _clean(options):
+    cleaned = {k: v for k, v in options.items()
+               if v is not None and k is not "layout_options"}
+    return {**options.get('layout_options', {}), **cleaned}
+

gooey/gui/components/options/validators.py

@@ -0,0 +1,201 @@
+import re
+from functools import wraps
+
+from gooey.gui.components.filtering.prefix_filter import OperatorType
+
+
+class SuperBool(object):
+    """
+    A boolean which keeps with it the rationale
+    for when it is false.
+    """
+    def __init__(self, value, rationale):
+        self.value = value
+        self.rationale = rationale
+
+    def __bool__(self):
+        return self.value
+
+    __nonzero__ = __bool__
+
+    def __str__(self):
+        return str(self.value)
+
+
+def lift(f):
+    """
+    Lifts a basic predicate to the SuperBool type
+    stealing the docstring as the rationale message.
+
+    This is largely just goofing around and experimenting
+    since it's a private internal API.
+    """
+    @wraps(f)
+    def inner(value):
+        result = f(value)
+        return SuperBool(result, f.__doc__) if not isinstance(result, SuperBool) else result
+    return inner
+
+
+@lift
+def is_tuple_or_list(value):
+    """Must be either a list or tuple"""
+    return isinstance(value, list) or isinstance(value, tuple)
+
+
+@lift
+def is_str(value):
+    """Must be of type `str`"""
+    return isinstance(value, str)
+
+@lift
+def is_str_or_coll(value):
+    """
+    Colors must be either a hex string or collection of RGB values.
+    e.g.
+        Hex string: #fff0ce
+        RGB Collection: [0, 255, 128] or (0, 255, 128)
+    """
+    return bool(is_str(value)) or bool(is_tuple_or_list(value))
+
+
+@lift
+def has_valid_channel_values(rgb_coll):
+    """Colors in an RGB collection must all be in the range 0-255"""
+    return all([is_0to255(c) and is_int(c) for c in rgb_coll])
+
+
+@lift
+def is_three_channeled(value):
+    """Missing channels! Colors in an RGB collection should be of the form [R,G,B] or (R,G,B)"""
+    return len(value) == 3
+
+@lift
+def is_hex_string(value: str):
+    """Invalid hexadecimal format. Expected: "#FFFFFF" """
+    return isinstance(value, str) and bool(re.match('^#[\dABCDEF]{6}$', value, flags=2))
+
+
+@lift
+def is_bool(value):
+    """Must be of type Boolean"""
+    return isinstance(value, bool)
+
+@lift
+def non_empty_string(value):
+    """Must be a non-empty non-blank string"""
+    return value and bool(value.strip())
+
+@lift
+def is_tokenization_operator(value):
+    """Operator must be a valid OperatorType i.e. one of: (AND, OR)"""
+    return value in (OperatorType.AND, OperatorType.OR)
+
+@lift
+def is_tokenizer(value):
+    """Tokenizers must be valid Regular expressions. see: options.PrefixTokenizers"""
+    return bool(non_empty_string(value))
+
+
+@lift
+def is_int(value):
+    """Invalid type. Expected `int`"""
+    return isinstance(value, int)
+
+@lift
+def is_0to255(value):
+    """RGB values must be in the range 0 - 255 (inclusive)"""
+    return 0 <= value <= 255
+
+
+def is_0to20(value):
+    """Precision values must be in the range 0 - 20 (inclusive)"""
+    return 0 <= value <= 20
+
+@lift
+def is_valid_color(value):
+    """Must be either a valid hex string or RGB list"""
+    if is_str(value):
+        return is_hex_string(value)
+    elif is_tuple_or_list(value):
+        return (is_tuple_or_list(value)
+                and is_three_channeled(value)
+                and has_valid_channel_values(value))
+    else:
+        return is_str_or_coll(value)
+
+
+validators = {
+    'label_color': is_valid_color,
+    'label_bg_color': is_valid_color,
+    'help_color': is_valid_color,
+    'help_bg_color': is_valid_color,
+    'error_color': is_valid_color,
+    'error_bg_color': is_valid_color,
+    'show_label': is_bool,
+    'show_help': is_bool,
+    'visible': is_bool,
+    'full_width': is_bool,
+    'height': is_int,
+    'readonly': is_bool,
+    'initial_selection': is_int,
+    'title': non_empty_string,
+    'checkbox_label': non_empty_string,
+    'placeholder': non_empty_string,
+    'empty_message': non_empty_string,
+    'max_size': is_int,
+    'choice_tokenizer': is_tokenizer,
+    'input_tokenizer': is_tokenizer,
+    'ignore_case': is_bool,
+    'operator': is_tokenization_operator,
+    'index_suffix': is_bool,
+    'wildcard': non_empty_string,
+    'default_dir': non_empty_string,
+    'default_file': non_empty_string,
+    'default_path': non_empty_string,
+    'message': non_empty_string,
+    'precision': is_0to20
+}
+
+
+
+def collect_errors(predicates, m):
+    return {
+        k:predicates[k](v).rationale
+        for k,v in m.items()
+        if k in predicates and not predicates[k](v)}
+
+
+def validate(pred, value):
+    result = pred(value)
+    if not result:
+        raise ValueError(result.rationale)
+
+
+
+if __name__ == '__main__':
+    # TODO: there should be tests
+    pass
+    # print(validateColor((1, 'ergerg', 1234)))
+    # print(validateColor(1234))
+    # print(validateColor(123.234))
+    # print(validateColor('123.234'))
+    # print(validateColor('FFFAAA'))
+    # print(validateColor('#FFFAAA'))
+    # print(validateColor([]))
+    # print(validateColor(()))
+    # print(validateColor((1, 2)))
+    # print(validateColor((1, 2, 1234)))
+    # print(is_lifted(lift(is_int)))
+    # print(is_lifted(is_int))
+    # print(OR(is_poop, is_int)('poop'))
+    # print(AND(is_poop, is_lower, is_lower)('pooP'))
+    # print(OR(is_poop, is_int))
+    # print(is_lifted(OR(is_poop, is_int)))
+    # print(validate(is_valid_color, [255, 255, 256]))
+    # print(is_valid_color('#fff000'))
+    # print(is_valid_color([255, 244, 256]))
+    # print(non_empty_string('asdf') and non_empty_string('asdf'))
+    # validate(is_valid_color, 1234)
+
+

gooey/gui/components/widgets/__init__.py

@@ -12,3 +12,5 @@ from .counter import Counter
 from .radio_group import RadioGroup
 from .choosers import *
 from .dropdown_filterable import FilterableDropdown
+from .numeric_fields import IntegerField, DecimalField
+from .slider import Slider

gooey/gui/components/widgets/bases.py

@@ -1,3 +1,4 @@
+import re
 from functools import reduce
 
 import wx
@@ -28,6 +29,9 @@ class BaseWidget(wx.Panel):
     def setValue(self, value):
         raise NotImplementedError
 
+    def setPlaceholder(self, value):
+        raise NotImplementedError
+
     def receiveChange(self, *args, **kwargs):
         raise NotImplementedError
 
@@ -75,6 +79,10 @@ class TextContainer(BaseWidget):
         # Checking for None instead of truthiness means False-evaluaded defaults can be used.
         if self._meta['default'] is not None:
             self.setValue(self._meta['default'])
+
+        if self._options.get('placeholder'):
+            self.setPlaceholder(self._options.get('placeholder'))
+
         self.onComponentInitialized()
 
     def onComponentInitialized(self):
@@ -153,9 +161,13 @@ class TextContainer(BaseWidget):
 
 
     def getValue(self):
+        regexFunc = lambda x: bool(re.match(userValidator, x))
+
         userValidator = getin(self._options, ['validator', 'test'], 'True')
         message = getin(self._options, ['validator', 'message'], '')
-        testFunc = eval('lambda user_input: bool(%s)' % userValidator)
+        testFunc = regexFunc \
+                   if getin(self._options, ['validator', 'type'], None) == 'RegexValidator'\
+                   else eval('lambda user_input: bool(%s)' % userValidator)
         satisfies = testFunc if self._meta['required'] else ifPresent(testFunc)
         value = self.getWidgetValue()
 
@@ -173,6 +185,10 @@ class TextContainer(BaseWidget):
     def setValue(self, value):
         self.widget.SetValue(value)
 
+    def setPlaceholder(self, value):
+        if getattr(self.widget, 'SetHint', None):
+            self.widget.SetHint(value)
+
     def setErrorString(self, message):
         self.error.SetLabel(message)
         self.error.Wrap(self.Size.width)
@@ -203,6 +219,9 @@ class BaseChooser(TextContainer):
     def setValue(self, value):
         self.widget.setValue(value)
 
+    def setPlaceholder(self, value):
+        self.widget.SetHint(value)
+
     def getWidgetValue(self):
         return self.widget.getValue()
 

gooey/gui/components/widgets/choosers.py

@@ -16,12 +16,10 @@ __ALL__ = [
 
 
 class FileChooser(BaseChooser):
-    # todo: allow wildcard from argparse
     widget_class = core.FileChooser
 
 
 class MultiFileChooser(BaseChooser):
-    # todo: allow wildcard from argparse
     widget_class = core.MultiFileChooser
 
     def formatOutput(self, metatdata, value):
@@ -29,17 +27,14 @@ class MultiFileChooser(BaseChooser):
 
 
 class FileSaver(BaseChooser):
-    # todo: allow wildcard
     widget_class = core.FileSaver
 
 
 class DirChooser(BaseChooser):
-    # todo: allow wildcard
     widget_class = core.DirChooser
 
 
 class MultiDirChooser(BaseChooser):
-    # todo: allow wildcard
     widget_class = core.MultiDirChooser
 
     def formatOutput(self, metadata, value):
@@ -47,7 +42,6 @@ class MultiDirChooser(BaseChooser):
 
 
 class DateChooser(BaseChooser):
-    # todo: allow wildcard
     widget_class = core.DateChooser
 
 

gooey/gui/components/widgets/core/chooser.py

@@ -22,7 +22,7 @@ class Chooser(wx.Panel):
 
     TODO: oh, young me. DRY != Good Abstraction
     TODO: this is another weird inheritance hierarchy that's hard
-          to follow. Why do subclasses rather into, not their parent
+          to follow. Why do subclasses reach into, not their parent
           class, but their _physical_ UI parent to grab the Gooey Options?
           All this could be simplified to make the data flow
           more apparent.
@@ -73,6 +73,9 @@ class Chooser(wx.Panel):
     def setValue(self, value):
         self.widget.setValue(value)
 
+    def SetHint(self, value):
+        self.widget.SetHint(value)
+
     def getValue(self):
         return self.widget.getValue()
 

gooey/gui/components/widgets/core/text_input.py

@@ -32,6 +32,9 @@ class TextInput(wx.Panel):
     def getValue(self):
         return self.widget.GetValue()
 
+    def SetHint(self, value):
+        self.widget.SetHint(value)
+
     def SetDropTarget(self, target):
         self.widget.SetDropTarget(target)
 

gooey/gui/components/widgets/numeric_fields.py

@@ -0,0 +1,50 @@
+import wx
+
+from gooey.gui import formatters
+from gooey.gui.components.widgets.bases import TextContainer
+
+
+class IntegerField(TextContainer):
+    """
+    An integer input field
+    """
+    widget_class = wx.SpinCtrl
+    def getWidget(self, *args, **options):
+        widget = self.widget_class(self,
+                             value='',
+                             min=self._options.get('min', 0),
+                             max=self._options.get('max', 100))
+        return widget
+
+    def getWidgetValue(self):
+        return self.widget.GetValue()
+
+    def setValue(self, value):
+        self.widget.SetValue(int(value))
+
+    def formatOutput(self, metatdata, value):
+        # casting to string so that the generic formatter
+        # doesn't treat 0 as false/None
+        return formatters.general(metatdata, str(value))
+
+
+class DecimalField(IntegerField):
+    """
+    A decimal input field
+    """
+    widget_class = wx.SpinCtrlDouble
+
+    def getWidget(self, *args, **options):
+        widget = self.widget_class(self,
+                             value='',
+                             min=self._options.get('min', 0),
+                             max=self._options.get('max', 100),
+                             inc=self._options.get('increment', 0.01))
+        widget.SetDigits(self._options.get('precision', widget.GetDigits()))
+        return widget
+
+
+    def setValue(self, value):
+        self.widget.SetValue(value)
+
+

gooey/gui/components/widgets/options.py

@@ -1,74 +0,0 @@
-import pygtrie as trie
-from fuzzywuzzy import process
-
-class BasicDisplayOptions(object):
-    pass
-
-countries = ["Abkhazia -> Abkhazia", "Afghanistan",
-             "Albania", "Algeria", "Andorra", "Angola", "Antigua and Barbuda", "Argentina",
-             "Armenia", "Artsakh -> Artsakh", "Australia", "Austria", "Azerbaijan", "Bahamas, The",
-             "Bahrain", "Bangladesh", "Barbados", "Belarus", "Belgium", "Belize", "Benin", "Bhutan",
-             "Bolivia", "Bosnia and Herzegovina", "Botswana", "Brazil", "Brunei", "Bulgaria",
-             "Burkina Faso[j]", "Burma -> Myanmar", "Burundi", "Cambodia", "Cameroon", "Canada[k]",
-             "Cape Verde", "Central African Republic", "Chad", "Chile", "China",
-             "China, Republic of -> Taiwan", "Colombia", "Comoros",
-             "Congo, Democratic Republic of the[p]", "Congo, Republic of the",
-             "Cook Islands -> Cook Islands", "Costa Rica", "Croatia", "Cuba", "Cyprus",
-             "Czech Republic[r]", "Democratic People's Republic of Korea -> Korea, North",
-             "Democratic Republic of the Congo -> Congo, Democratic Republic of the", "Denmark",
-             "Djibouti", "Dominica", "Dominican Republic", "East Timor", "Ecuador", "Egypt",
-             "El Salvador", "Equatorial Guinea", "Eritrea", "Estonia", "Eswatini -> Swaziland",
-             "Ethiopia", "Fiji", "Finland", "France", "Gabon", "Gambia, The", "Georgia", "Germany",
-             "Ghana", "Greece", "Grenada", "Guatemala", "Guinea", "Guinea", "Guyana", "Haiti",
-             "Holy See -> Vatican City", "Honduras", "Hungary", "Iceland[v]", "India", "Indonesia",
-             "Iran", "Iraq", "Ireland", "Israel", "Italy", "Ivory Coast", "Jamaica", "Japan",
-             "Jordan", "Kazakhstan", "Kenya", "Kiribati", "Korea, North", "Korea, South",
-             "Kosovo -> Kosovo", "Kuwait", "Kyrgyzstan", "Laos", "Latvia", "Lebanon", "Lesotho",
-             "Liberia", "Libya", "Liechtenstein", "Lithuania", "Luxembourg", "Madagascar", "Malawi",
-             "Malaysia", "Maldives", "Mali", "Malta", "Marshall Islands", "Mauritania", "Mauritius",
-             "Mexico", "Micronesia", "Moldova", "Monaco", "Mongolia", "Montenegro", "Morocco",
-             "Mozambique", "Myanmar", "Nagorno", "Namibia", "Nauru", "Nepal", "Netherlands",
-             "New Zealand", "Nicaragua", "Niger", "Nigeria", "Niue -> Niue",
-             "Northern Cyprus -> Northern Cyprus", "North Korea -> Korea, North", "North Macedonia",
-             "Norway", "Oman", "Pakistan", "Palau", "Palestine", "Panama", "Papua New Guinea",
-             "Paraguay", "Peru", "Philippines", "Poland", "Portugal",
-             "Pridnestrovie -> Transnistria", "Qatar", "Republic of Korea -> Korea, South",
-             "Republic of the Congo -> Congo, Republic of the", "Romania", "Russia", "Rwanda",
-             "Sahrawi Arab Democratic Republic -> Sahrawi Arab Democratic Republic",
-             "Saint Kitts and Nevis", "Saint Lucia", "Saint Vincent and the Grenadines", "Samoa",
-             "San Marino", "São Tomé and Príncipe", "Saudi Arabia", "Senegal", "Serbia",
-             "Seychelles", "Sierra Leone", "Singapore", "Slovakia", "Slovenia", "Solomon Islands",
-             "Somalia", "Somaliland -> Somaliland", "South Africa", "South Korea -> Korea, South",
-             "South Ossetia -> South Ossetia", "South Sudan", "Spain", "Sri Lanka", "Sudan",
-             "Sudan, South -> South Sudan", "Suriname", "Swaziland", "Sweden", "Switzerland",
-             "Syria", "Taiwan (Republic of China) -> Taiwan", "Tajikistan", "Tanzania", "Thailand",
-             "The Bahamas -> Bahamas, The", "The Gambia -> Gambia, The", "Timor", "Togo", "Tonga",
-             "Transnistria -> Transnistria", "Trinidad and Tobago", "Tunisia", "Turkey",
-             "Turkmenistan", "Tuvalu", "Uganda", "Ukraine", "United Arab Emirates",
-             "United Kingdom", "United States", "Uruguay", "Uzbekistan", "Vanuatu", "Vatican City",
-             "Venezuela", "Vietnam", "Yemen", "Zambia", "Zimbabwe",
-             "↑ UN member states and observer states ↑", "", "↓ Other states ↓", "Abkhazia",
-             "Artsakh", "Cook Islands", "Kosovo", "Niue", "Northern Cyprus",
-             "Sahrawi Arab Democratic Republic", "Somaliland", "South Ossetia", "Taiwan",
-             "Transnistria", "↑ Other states ↑"]
-
-
-us_states = ["Alabama", "Alaska", "Arizona", "Arkansas", "California", "Colorado",
-                 "Connecticut", "Delaware", "Florida", "Georgia", "Hawaii", "Idaho", "Illinois",
-                 "Indiana", "Iowa", "Kansas", "Kentucky[E]", "Louisiana", "Maine", "Maryland",
-                 "Massachusetts", "Michigan", "Minnesota", "Mississippi", "Missouri", "Montana",
-                 "Nebraska", "Nevada", "New Hampshire", "New Jersey", "New Mexico", "New York",
-                 "North Carolina", "North Dakota", "Ohio", "Oklahoma", "Oregon", "Pennsylvania",
-                 "Rhode Island", "South Carolina", "South Dakota", "Tennessee", "Texas", "Utah",
-                 "Vermont", "Virginia", "Washington", "West Virginia", "Wisconsin", "Wyoming"]
-
-x = trie.Trie()
-output = {}
-for country in countries:
-    for i in country.split():
-        if not x.has_key(i):
-            x[i] = []
-        x[i].append(country)
-
-
-a = 10

gooey/gui/components/widgets/slider.py

@@ -0,0 +1,28 @@
+import wx
+
+from gooey.gui import formatters
+from gooey.gui.components.widgets.bases import TextContainer
+
+
+class Slider(TextContainer):
+    """
+    An integer input field
+    """
+    widget_class = wx.Slider
+    def getWidget(self, *args, **options):
+        widget = self.widget_class(self,
+                                   minValue=self._options.get('min', 0),
+                                   maxValue=self._options.get('max', 100),
+                                   style=wx.SL_MIN_MAX_LABELS | wx.SL_VALUE_LABEL)
+        return widget
+
+    def getWidgetValue(self):
+        return self.widget.GetValue()
+
+    def setValue(self, value):
+        self.widget.SetValue(value)
+
+    def formatOutput(self, metatdata, value):
+        return formatters.general(metatdata, str(value))
+
+

gooey/gui/components/widgets/textfield.py

@@ -1,9 +1,6 @@
-import wx
+from gooey.gui import formatters
 from gooey.gui.components.widgets.bases import TextContainer
-from gooey.gui import formatters, events
 from gooey.gui.components.widgets.core.text_input import TextInput
-from gooey.gui.pubsub import pub
-from gooey.util.functional import getin
 
 
 class TextField(TextContainer):
@@ -15,6 +12,9 @@ class TextField(TextContainer):
     def setValue(self, value):
         self.widget.setValue(str(value))
 
+    def setPlaceholder(self, value):
+        self.widget.SetHint(value)
+
     def formatOutput(self, metatdata, value):
         return formatters.general(metatdata, value)
 

gooey/python_bindings/argparse_to_json.py

@@ -19,7 +19,8 @@ from uuid import uuid4
 
 from gooey.python_bindings.gooey_parser import GooeyParser
 from gooey.util.functional import merge, getin, identity, assoc
-
+from gooey.gui.components.options.validators import validators
+from gooey.gui.components.options.validators import collect_errors
 
 VALID_WIDGETS = (
     'FileChooser',
@@ -38,7 +39,10 @@ VALID_WIDGETS = (
     'Textarea',
     'PasswordField',
     'Listbox',
-    'FilterableDropdown'
+    'FilterableDropdown',
+    'IntegerField',
+    'DecimalField',
+    'Slider'
 )
 
 
@@ -419,6 +423,7 @@ def action_to_json(action, widget, options):
 
     base = merge(item_default, {
         'validator': {
+            'type': 'ExpressionValidator',
             'test': validator,
             'message': error_msg
         },
@@ -428,6 +433,9 @@ def action_to_json(action, widget, options):
     if default == argparse.SUPPRESS:
         default = None
 
+    final_options = merge(base, options.get(action.dest) or {})
+    validate_gooey_options(action, widget, final_options)
+
     return {
         'id': action.option_strings[0] if action.option_strings else action.dest,
         'type': widget,
@@ -443,11 +451,33 @@ def action_to_json(action, widget, options):
             'default': default,
             'dest': action.dest,
         },
-        'options': merge(base, options.get(action.dest) or {})
+        'options': final_options
     }
 
 
+def validate_gooey_options(action, widget, options):
+    """Very basic field validation / sanity checking for
+    the time being.
+
+    Future plans are to assert against the options and actions together
+    to facilitate checking that certain options like `initial_selection` in
+    RadioGroups map to a value which actually exists (rather than exploding
+    at runtime with an unhelpful error)
 
+    Additional problems with the current approach is that no feedback is given
+    as to WHERE the issue took place (in terms of stacktrace). Which means we should
+    probably explode in GooeyParser proper rather than trying to collect all the errors here.
+    It's not super ideal in that the user will need to run multiple times to
+    see all the issues, but, ultimately probably less annoying that trying to
+    debug which `gooey_option` key had an issue in a large program.
+
+    That said "better is the enemy of done." This is good enough for now. It'll be
+    a TODO: better validation 
+    """
+    errors = collect_errors(validators, options)
+    if errors:
+        from pprint import pformat
+        raise ValueError(str(action.dest) + str(pformat(errors)))
 
 
 def choose_cli_type(action):

gooey/tests/test_numeric_inputs.py

@@ -0,0 +1,89 @@
+import unittest
+from random import randint
+from unittest.mock import patch
+
+from tests.harness import instrumentGooey
+from gooey import GooeyParser
+from gooey.tests import *
+
+class TestNumbericInputs(unittest.TestCase):
+
+    def makeParser(self, **kwargs):
+        parser = GooeyParser(description='description')
+        parser.add_argument('--input', **kwargs)
+        return parser
+
+
+    def testDefault(self):
+        cases = [
+            [{'widget': 'IntegerField'}, 0],
+            [{'default': 0, 'widget': 'IntegerField'}, 0],
+            [{'default': 10, 'widget': 'IntegerField'}, 10],
+            [{'default': 76, 'widget': 'IntegerField'}, 76],
+            # note that WX caps the value
+            # unless explicitly widened via gooey_options
+            [{'default': 81234, 'widget': 'IntegerField'}, 100],
+            # here we set the max to something higher than
+            # the default and all works as expected.
+            # this is a TODO for validation
+            [{'default': 81234, 'widget': 'IntegerField', 'gooey_options': {'max': 99999}}, 81234],
+
+            [{'widget': 'DecimalField'}, 0],
+            [{'default': 0, 'widget': 'DecimalField'}, 0],
+            [{'default': 81234, 'widget': 'DecimalField'}, 100],
+            [{'default': 81234, 'widget': 'DecimalField', 'gooey_options': {'max': 99999}}, 81234],
+        ]
+        for inputs, expected in cases:
+            with self.subTest(inputs):
+                parser = self.makeParser(**inputs)
+                with instrumentGooey(parser) as (app, gooeyApp):
+                    input = gooeyApp.configs[0].reifiedWidgets[0]
+                    self.assertEqual(input.getValue()['rawValue'], expected)
+
+    def testGooeyOptions(self):
+        cases = [
+            {'widget': 'DecimalField', 'gooey_options': {'min': -100, 'max': 1234, 'increment': 1.240}},
+            {'widget': 'DecimalField', 'gooey_options': {'min': 1234, 'max': 3456, 'increment': 2.2}},
+            {'widget': 'IntegerField', 'gooey_options': {'min': -100, 'max': 1234}},
+            {'widget': 'IntegerField', 'gooey_options': {'min': 1234, 'max': 3456}}
+        ];
+        using = {
+            'min': lambda widget: widget.GetMin(),
+            'max': lambda widget: widget.GetMax(),
+            'increment': lambda widget: widget.GetIncrement(),
+
+        }
+        for case in cases:
+            with self.subTest(case):
+                parser = self.makeParser(**case)
+                with instrumentGooey(parser) as (app, gooeyApp):
+                    wxWidget = gooeyApp.configs[0].reifiedWidgets[0].widget
+                    for option, value in case['gooey_options'].items():
+                        self.assertEqual(using[option](wxWidget), value)
+
+
+    def testZerosAreReturned(self):
+        """
+        Originally the formatter was dropping '0' due to
+        it being interpreted as falsey
+        """
+        parser = self.makeParser(widget='IntegerField')
+        with instrumentGooey(parser) as (app, gooeyApp):
+            field = gooeyApp.configs[0].reifiedWidgets[0]
+            result = field.getValue()
+            self.assertEqual(result['rawValue'], 0)
+            self.assertIsNotNone(result['cmd'])
+
+    def testNoLossOfPrecision(self):
+        parser = self.makeParser(widget='DecimalField', default=12.23534, gooey_options={'precision': 20})
+        with instrumentGooey(parser) as (app, gooeyApp):
+            field = gooeyApp.configs[0].reifiedWidgets[0]
+            result = field.getValue()
+            self.assertEqual(result['rawValue'], 12.23534)
+            self.assertIsNotNone(result['cmd'])
+
+
+
+
+if __name__ == '__main__':
+    unittest.main()

gooey/tests/test_options.py

@@ -0,0 +1,54 @@
+import unittest
+
+from gooey.gui.components.options import options
+
+class TestPrefixFilter(unittest.TestCase):
+
+    def test_doc_schenanigans(self):
+        """Sanity check that my docstring wrappers all behave as expected"""
+        @options._include_layout_docs
+        def no_self_docstring():
+            pass
+
+        @options._include_layout_docs
+        def yes_self_docstring():
+            """sup"""
+            pass
+
+        # gets attached to functions even if they don't have a docstring
+        self.assertIn(options.LayoutOptions.__doc__, no_self_docstring.__doc__)
+        # gets attached to the *end* of existing doc strings
+        self.assertTrue(yes_self_docstring.__doc__.startswith('sup'))
+        self.assertIn(options.LayoutOptions.__doc__, yes_self_docstring.__doc__)
+
+
+    def test_clean_method(self):
+        """
+        _clean should drop any keys with None values
+        and flatten the layout_option kwargs to the root level
+        """
+        result = options._clean({'a': None, 'b': 123, 'c': 0})
+        self.assertEqual(result, {'b': 123, 'c': 0})
+
+        result = options._clean({'root_level': 123, 'layout_options': {
+            'nested': 'hello',
+            'another': 1234
+        }})
+        self.assertEqual(result, {'root_level': 123, 'nested': 'hello', 'another': 1234})
+
+    def test_only_provided_arguments_included(self):
+        """
+        More sanity checking that the internal use of locals()
+        does the Right Thing
+        """
+        option = options.LayoutOptions(label_color='#ffffff')
+        self.assertIn('label_color', option)
+
+        option = options.LayoutOptions()
+        self.assertNotIn('label_color', option)
+
+        option = options.TextField(label_color='#ffffff')
+        self.assertIn('label_color', option)
+
+        option = options.TextField()
+        self.assertNotIn('label_color', option)

gooey/tests/test_password.py

@@ -0,0 +1,32 @@
+import unittest
+
+from tests.harness import instrumentGooey
+from gooey import GooeyParser
+from gooey.tests import *
+
+class TestPasswordField(unittest.TestCase):
+
+    def makeParser(self, **kwargs):
+        parser = GooeyParser(description='description')
+        parser.add_argument('--widget', widget="PasswordField", **kwargs)
+        return parser
+
+
+    def testPlaceholder(self):
+        cases = [
+            [{}, ''],
+            [{'placeholder': 'Hello'}, 'Hello']
+        ]
+        for options, expected in cases:
+            parser = self.makeParser(gooey_options=options)
+            with instrumentGooey(parser) as (app, gooeyApp):
+                # because of how poorly designed the Gooey widgets are
+                # we have to reach down 3 levels in order to find the
+                # actual WX object we need to test.
+                widget = gooeyApp.configs[0].reifiedWidgets[0].widget
+                self.assertEqual(widget.widget.GetHint(), expected)
+
+
+
+if __name__ == '__main__':
+    unittest.main()

gooey/tests/test_slider.py

@@ -0,0 +1,51 @@
+import unittest
+from unittest.mock import patch
+
+from tests.harness import instrumentGooey
+from gooey import GooeyParser
+from gooey.tests import *
+
+class TestGooeySlider(unittest.TestCase):
+
+    def makeParser(self, **kwargs):
+        parser = GooeyParser(description='description')
+        parser.add_argument('--slider', widget="Slider", **kwargs)
+        return parser
+
+
+    def testSliderDefault(self):
+        cases = [
+            [{}, 0],
+            [{'default': 0}, 0],
+            [{'default': 10}, 10],
+            [{'default': 76}, 76],
+            # note that WX caps the value
+            # unless explicitly widened via gooey_options
+            [{'default': 81234}, 100],
+            # here we set the max to something higher than
+            # the default and all works as expected.
+            # this is a TODO for validation
+            [{'default': 81234, 'gooey_options': {'max': 99999}}, 81234],
+        ]
+        for inputs, expected in cases:
+            with self.subTest(inputs):
+                parser = self.makeParser(**inputs)
+                with instrumentGooey(parser) as (app, gooeyApp):
+                    slider = gooeyApp.configs[0].reifiedWidgets[0]
+                    self.assertEqual(slider.getValue()['rawValue'], expected)
+
+    def testZerosAreReturned(self):
+        """
+        Originally the formatter was dropping '0' due to
+        it being interpreted as falsey
+        """
+        parser = self.makeParser()
+        with instrumentGooey(parser) as (app, gooeyApp):
+            field = gooeyApp.configs[0].reifiedWidgets[0]
+            result = field.getValue()
+            self.assertEqual(result['rawValue'], 0)
+            self.assertIsNotNone(result['cmd'])
+
+
+if __name__ == '__main__':
+    unittest.main()

gooey/tests/test_textarea.py

@@ -0,0 +1,32 @@
+import unittest
+
+from tests.harness import instrumentGooey
+from gooey import GooeyParser
+from gooey.tests import *
+
+class TestTextarea(unittest.TestCase):
+
+    def makeParser(self, **kwargs):
+        parser = GooeyParser(description='description')
+        parser.add_argument('--widget', widget="Textarea", **kwargs)
+        return parser
+
+
+    def testPlaceholder(self):
+        cases = [
+            [{}, ''],
+            [{'placeholder': 'Hello'}, 'Hello']
+        ]
+        for options, expected in cases:
+            parser = self.makeParser(gooey_options=options)
+            with instrumentGooey(parser) as (app, gooeyApp):
+                # because of how poorly designed the Gooey widgets are
+                # we have to reach down 3 levels in order to find the
+                # actual WX object we need to test.
+                widget = gooeyApp.configs[0].reifiedWidgets[0]
+                self.assertEqual(widget.widget.GetHint(), expected)
+
+
+
+if __name__ == '__main__':
+    unittest.main()

gooey/tests/test_textfield.py

@@ -0,0 +1,32 @@
+import unittest
+
+from tests.harness import instrumentGooey
+from gooey import GooeyParser
+from gooey.tests import *
+
+class TestTextField(unittest.TestCase):
+
+    def makeParser(self, **kwargs):
+        parser = GooeyParser(description='description')
+        parser.add_argument('--widget', widget="TextField", **kwargs)
+        return parser
+
+
+    def testPlaceholder(self):
+        cases = [
+            [{}, ''],
+            [{'placeholder': 'Hello'}, 'Hello']
+        ]
+        for options, expected in cases:
+            parser = self.makeParser(gooey_options=options)
+            with instrumentGooey(parser) as (app, gooeyApp):
+                # because of how poorly designed the Gooey widgets are
+                # we have to reach down 3 levels in order to find the
+                # actual WX object we need to test.
+                widget = gooeyApp.configs[0].reifiedWidgets[0].widget
+                self.assertEqual(widget.widget.GetHint(), expected)
+
+
+
+if __name__ == '__main__':
+    unittest.main()

gooey/util/functional.py

@@ -72,7 +72,10 @@ def zipmap(keys, vals):
 
 def compact(coll):
     """Returns a new list with all falsy values removed"""
-    return list(filter(None, coll))
+    if isinstance(coll, dict):
+        return {k:v for k,v in coll.items() if v is not None}
+    else:
+        return list(filter(None, coll))
 
 
 def ifPresent(f):