{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import math\n",
    "import panel as pn\n",
    "pn.extension()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "The ``RangeSlider`` widget allows selecting a floating-point range using a slider with two handles.\n",
    "\n",
    "For more information about listening to widget events and laying out widgets refer to the [widgets user guide](../../user_guide/Widgets.ipynb). Alternatively you can learn how to build GUIs by declaring parameters independently of any specific widgets in the [param user guide](../../user_guide/Param.ipynb). To express interactivity entirely using Javascript without the need for a Python server take a look at the [links user guide](../../user_guide/Param.ipynb).\n",
    "\n",
    "#### Parameters:\n",
    "\n",
    "For layout and styling related parameters see the [customization user guide](../../user_guide/Customization.ipynb).\n",
    "\n",
    "##### Core\n",
    "\n",
    "* **``start``** (float): The range's lower bound\n",
    "* **``end``** (float): The range's upper bound\n",
    "* **``step``** (float): The interval between values\n",
    "* **``value``** (tuple): Tuple of upper and lower bounds of selected range\n",
    "* **``value_throttled``** (tuple): Tuple of upper and lower bounds of selected range throttled until mouseup\n",
    "\n",
    "##### Display\n",
    "\n",
    "* **``bar_color``** (color): Color of the slider bar as a hexadecimal RGB value\n",
    "* **``direction``** (str): Whether the slider should go from left to right ('ltr') or right to left ('rtl')\n",
    "* **``disabled``** (boolean): Whether the widget is editable\n",
    "* **``format``** (str, bokeh.models.TickFormatter): Formatter to apply to the slider value\n",
    "* **``name``** (str): The title of the widget\n",
    "* **``orientation``** (str): Whether the slider should be displayed in a 'horizontal' or 'vertical' orientation.\n",
    "* **``tooltips``** (boolean): Whether to display tooltips on the slider handle\n",
    "\n",
    "___"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "range_slider = pn.widgets.RangeSlider(\n",
    "    name='Range Slider', start=0, end=math.pi, value=(math.pi/4., math.pi/2.), step=0.01)\n",
    "\n",
    "range_slider"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "``RangeSlider.value`` returns a tuple of float values that can be read out and set like other widgets:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "range_slider.value"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "A custom format string or bokeh TickFormatter may be used to format the slider values:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "from bokeh.models.formatters import PrintfTickFormatter\n",
    "\n",
    "str_format = pn.widgets.RangeSlider(name='Distance', format='0.0a', start=100000, end=1000000)\n",
    "\n",
    "tick_format = pn.widgets.RangeSlider(name='Distance', format=PrintfTickFormatter(format='%.3f m'))\n",
    "\n",
    "pn.Column(str_format, tick_format)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### Controls\n",
    "\n",
    "The `RangeSlider` widget exposes a number of options which can be changed from both Python and Javascript. Try out the effect of these parameters interactively:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "pn.Row(range_slider.controls(jslink=True), range_slider)"
   ]
  }
 ],
 "metadata": {
  "language_info": {
   "name": "python",
   "pygments_lexer": "ipython3"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 4
}