How to use nanogui - 10 common examples

#
# All rights reserved. Use of this source code is governed by a
# BSD-style license that can be found in the LICENSE.txt file.

import nanogui
import math
import gc

from nanogui import Screen, FormHelper

bvar = True
ivar = 12345678
dvar = math.pi
strvar = "A string"
enumvar = 1
colvar = nanogui.Color(.5, .5, .7, 1)


def make_accessors(name):
    def setter(value):
        globals()[name] = value

    def getter():
        return globals()[name]
    return setter, getter

nanogui.init()

use_gl_4_1 = False # Set to True to create an OpenGL 4.1 context.
if use_gl_4_1:
    # NanoGUI presents many options for you to utilize at your discretion.
    # See include/nanogui/screen.h for what all of the options are.

def keyboardEvent(self, key, scancode, action, modifiers):
        if super(TestApp, self).keyboardEvent(key, scancode,
                                              action, modifiers):
            return True
        if key == glfw.KEY_ESCAPE and action == glfw.PRESS:
            self.setVisible(False)
            return True
        return False

if __name__ == "__main__":
    nanogui.init()
    test = TestApp()
    test.drawAll()
    test.setVisible(True)
    nanogui.mainloop()
    del test
    gc.collect()
    nanogui.shutdown()

def keyboardEvent(self, key, scancode, action, modifiers):
        if super(TestApp, self).keyboardEvent(key, scancode,
                                              action, modifiers):
            return True
        if key == glfw.KEY_ESCAPE and action == glfw.PRESS:
            self.setVisible(False)
            return True
        return False

if __name__ == "__main__":
    nanogui.init()
    test = TestApp()
    test.drawAll()
    test.setVisible(True)
    nanogui.mainloop()
    del test
    gc.collect()
    nanogui.shutdown()

def cb2():
            self.setVisible(False)
        b.setCallback(cb2)

        self.performLayout()


if __name__ == "__main__":
    nanogui.init()
    test = TestApp()
    test.drawAll()
    test.setVisible(True)

    print("Launching detached mainloop")
    h = nanogui.mainloop(detach=test)

    print("Back in Python context")
    for i in range(10):
        print(i)
        time.sleep(1)
        if not nanogui.active():
            break

    h.join()
    nanogui.shutdown()

def keyboardEvent(self, key, scancode, action, modifiers):
        if super(TestApp, self).keyboardEvent(key, scancode,
                                              action, modifiers):
            return True
        if key == glfw.KEY_ESCAPE and action == glfw.PRESS:
            self.setVisible(False)
            return True
        return False

if __name__ == "__main__":
    nanogui.init()
    test = TestApp()
    test.drawAll()
    test.setVisible(True)
    nanogui.mainloop()
    del test
    gc.collect()
    nanogui.shutdown()

layout.setColAlignment(
            [Alignment.Maximum, Alignment.Fill])
        layout.setSpacing(0, 10)
        window.setLayout(layout)

        Label(window, "Floating point :", "sans-bold")
        floatBox = TextBox(window)
        floatBox.setEditable(True)
        floatBox.setFixedSize((100, 20))
        floatBox.setValue("50")
        floatBox.setUnits("GiB")
        floatBox.setDefaultValue("0.0")
        floatBox.setFontSize(16)
        floatBox.setFormat("[-]?[0-9]*\\.?[0-9]+")

        Label(window, "Positive integer :", "sans-bold")
        intBox = IntBox(window)
        intBox.setEditable(True)
        intBox.setFixedSize((100, 20))
        intBox.setValue(50)
        intBox.setUnits("Mhz")
        intBox.setDefaultValue("0")
        intBox.setFontSize(16)
        intBox.setFormat("[1-9][0-9]*")
        intBox.setSpinnable(True)
        intBox.setMinValue(1)
        intBox.setValueIncrement(2)

        Label(window, "Checkbox :", "sans-bold")

        cb = CheckBox(window, "Check me")
        cb.setFontSize(16)

layout = GridLayout(Orientation.Horizontal, 2,
                            Alignment.Middle, 15, 5)
        layout.setColAlignment(
            [Alignment.Maximum, Alignment.Fill])
        layout.setSpacing(0, 10)
        window.setLayout(layout)
        window.setPosition((425, 500))
        Label(window, "Combined: ");
        b = Button(window, "ColorWheel", entypo.ICON_500PX)
        Label(window, "Red: ")
        redIntBox = IntBox(window)
        redIntBox.setEditable(False)
        Label(window, "Green: ")
        greenIntBox = IntBox(window)
        greenIntBox.setEditable(False)
        Label(window, "Blue: ")
        blueIntBox = IntBox(window)
        blueIntBox.setEditable(False)
        Label(window, "Alpha: ")
        alphaIntBox = IntBox(window)

        def cp_fast_cb(color):
            b.setBackgroundColor(color)
            b.setTextColor(color.contrastingColor())
            red = int(color.r * 255.0)
            redIntBox.setValue(red)
            green = int(color.g * 255.0)
            greenIntBox.setValue(green)
            blue = int(color.b * 255.0)
            blueIntBox.setValue(blue)
            alpha = int(color.w * 255.0)
            alphaIntBox.setValue(alpha)

intBox.setValue(50)
        intBox.setUnits("Mhz")
        intBox.setDefaultValue("0")
        intBox.setFontSize(16)
        intBox.setFormat("[1-9][0-9]*")
        intBox.setSpinnable(True)
        intBox.setMinValue(1)
        intBox.setValueIncrement(2)

        Label(window, "Checkbox :", "sans-bold")

        cb = CheckBox(window, "Check me")
        cb.setFontSize(16)
        cb.setChecked(True)

        Label(window, "Combo box :", "sans-bold")
        cobo = ComboBox(window, ["Item 1", "Item 2", "Item 3"])
        cobo.setFontSize(16)
        cobo.setFixedSize((100, 20))

        Label(window, "Color picker :", "sans-bold");
        cp = ColorPicker(window, Color(255, 120, 0, 255));
        cp.setFixedSize((100, 20));

        def cp_final_cb(color):
            print(
                "ColorPicker Final Callback: [{0}, {1}, {2}, {3}]".format(color.r,
                                                                          color.g,
                                                                          color.b,
                                                                          color.w)
            )

layout.setColAlignment(
            [Alignment.Maximum, Alignment.Fill])
        layout.setSpacing(0, 10)
        window.setLayout(layout)

        Label(window, "Floating point :", "sans-bold")
        floatBox = TextBox(window)
        floatBox.setEditable(True)
        floatBox.setFixedSize((100, 20))
        floatBox.setValue("50")
        floatBox.setUnits("GiB")
        floatBox.setDefaultValue("0.0")
        floatBox.setFontSize(16)
        floatBox.setFormat("[-]?[0-9]*\\.?[0-9]+")

        Label(window, "Positive integer :", "sans-bold")
        intBox = IntBox(window)
        intBox.setEditable(True)
        intBox.setFixedSize((100, 20))
        intBox.setValue(50)
        intBox.setUnits("Mhz")
        intBox.setDefaultValue("0")
        intBox.setFontSize(16)
        intBox.setFormat("[1-9][0-9]*")
        intBox.setSpinnable(True)
        intBox.setMinValue(1)
        intBox.setValueIncrement(2)

        Label(window, "Checkbox :", "sans-bold")

        cb = CheckBox(window, "Check me")
        cb.setFontSize(16)

Label(window, "Toggle buttons", "sans-bold")
        b = Button(window, "Toggle me")
        b.setFlags(Button.Flags.ToggleButton)

        def change_cb(state):
            print("Toggle button state: %s" % str(state))
        b.setChangeCallback(change_cb)

        Label(window, "Radio buttons", "sans-bold")
        b = Button(window, "Radio button 1")
        b.setFlags(Button.Flags.RadioButton)
        b = Button(window, "Radio button 2")
        b.setFlags(Button.Flags.RadioButton)

        Label(window, "A tool palette", "sans-bold")
        tools = Widget(window)
        tools.setLayout(BoxLayout(Orientation.Horizontal,
                                  Alignment.Middle, 0, 6))

        ToolButton(tools, entypo.ICON_CLOUD)
        ToolButton(tools, entypo.ICON_CONTROLLER_FAST_FORWARD)
        ToolButton(tools, entypo.ICON_COMPASS)
        ToolButton(tools, entypo.ICON_INSTALL)

        Label(window, "Popup buttons", "sans-bold")
        popupBtn = PopupButton(window, "Popup", entypo.ICON_EXPORT)
        popup = popupBtn.popup()
        popup.setLayout(GroupLayout())
        Label(popup, "Arbitrary widgets can be placed here")
        CheckBox(popup, "A check box")
        # popup right