Daniel Weschke
033cb92dc4
import vendor modules only once during import change text color for the method cad_wireframe in geometry_plot_pylab and add hide key
194 lines
6.3 KiB
Python
Executable File
194 lines
6.3 KiB
Python
Executable File
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""Example tui.
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:Date: 2020-01-12
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.. module:: tui
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:platform: *nix, Windows
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:synopsis: Example tui.
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.. moduleauthor:: Daniel Weschke <daniel.weschke@directbox.de>
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"""
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import curses
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import locale
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from pylib.data import seq
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from pylib.function import sine_wave, cosine_wave, hypotrochoid, to_str
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from pylib.tui import TUI
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locale.setlocale(locale.LC_ALL, '')
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CODE = locale.getpreferredencoding()
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def standard_text(window):
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window.text(
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"1 - Show test page\n" +
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"2 - Show Hypotrochoid example\n" +
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"h - Show help page\n" +
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"q - Exit", 1, 2)
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def help_text(window, tui, str_width_height):
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screen_height, screen_width = window.getmaxyx()
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last_screen_row = screen_height - 1
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tui.color_table() # print colors
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window.text("screen width and height", 1, last_screen_row-3)
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window.text("\u2502", 3, last_screen_row-2) # \u2502
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window.text("\u2502", 3, last_screen_row-1) # \u2193 v
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window.text("last pressed key as Unicode code point", len(str_width_height)+2, last_screen_row-2)
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window.text("\u2502", 1+len(str_width_height)+1, last_screen_row-1)
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num_reloads = "number of screen reloads\u256e"
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# screen_width-1-len(num_reloads.encode('utf-16'))//2
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window.text(num_reloads, screen_width-1-len(num_reloads), last_screen_row-1)
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def test_text(window):
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window.text("Test page", 1, 2)
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def full_text(window, t):
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#window.clear()
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screen_height, screen_width = window.getmaxyx()
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# Sine
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f = sine_wave(A=0.5, k=0.1, D=0.5)
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frame = to_str(f, x_0=0, x_1=1, h=screen_height-2, w=screen_width, t=t)
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# Turtle
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import drawille
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turtle = drawille.Turtle()
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for _ in range(36):
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turtle.right(10 + t)
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for _ in range(0, 36):
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turtle.right(10)
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turtle.forward(8)
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frame = turtle.frame()
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# size for forward 1: width 11+1, height 6
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# size for forward 2: width 23+1, height 12
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# size for forward 5: width 57+1, height 30
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# size for forward 6: width 69+1, height 36
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# size for forward 10: width 114+1, height 58
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# n 12*n 6*n
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# Hypotrochoid
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demo = 2
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c = drawille.Canvas()
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R = 20
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r = 6
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d = 30
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if demo == 1:
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r = int(t/50)%19+1
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x, y, theta = hypotrochoid(R, r, d)
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for i in seq(0, theta[1]*0.98, theta[1]/10000):
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c.set(x(i+t), y(i+t))
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a = R+d+1 # R-r+d+1
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frame = c.frame(min_x=-a, max_x=a, min_y=-a, max_y=a)
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if demo == 2:
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d = int(t)%21
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x, y, theta = hypotrochoid(R, r, d)
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for i in seq(0, theta[1]*0.98, theta[1]/5000):
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c.set(x(i+t), y(i+t))
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a = 2*R # R-r+d+1
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frame = c.frame(min_x=-a, max_x=a, min_y=-a, max_y=a)
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window.text(frame, padding_top=1, color_pair=10)
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window.text("R=%2s r=%2s d=%2s" % (R, r, d), 1, int(a/2)+2)
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def win_charts_line(window, f_list, x_0, x_1, w, t, color_pairs, densities):
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win_chart_line, _ = window.textbox(height=8, width=52, y=9, x=5, borders=True)
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# width 100 pixel / 2 pixels/column = 50 columns
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for f, color_pair, density in zip(f_list, color_pairs, densities):
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frame = to_str(f, x_0=x_0, x_1=x_1, h=6, w=w, t=t, density=density)
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win_chart_line.text(frame, color_pair=color_pair)
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def win_chart_histogram(window, f, x_0, x_1, w, t):
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newwin2, _ = window.textbox(height=4, width=52, y=9+8, x=5, borders=True)
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#frame2 = function_frame(f, x_0=x_0, x_1=x_1, h=2, w=w, t=t, char_set="histogram")
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frame2 = to_str(f, x_0=x_0, x_1=x_1, h=2, w=w, t=t, char_set="histogram")
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newwin2.text(frame2, color_pair=3)
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frame3 = to_str(f, x_0=x_0, x_1=x_1, h=2, w=w, t=t, density=0.5, char_set="histogram")
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newwin2.text(frame3, color_pair=4)
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def main(delay=1):
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"""
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no window change for mouse events and resize events.
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"""
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tui = TUI(delay)
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initscr = tui.initscr
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try:
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tui.last_pressed_ch = 0 # getch() Note that the integer returned does not have to be in ASCII range: function keys, keypad keys and so on return numbers higher than 256.
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tui.last_pressed_mouse_ch = 0
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i = 1
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while True:
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tui.clear()
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screen_height, screen_width = initscr.getmaxyx()
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str_width_height = str(screen_width) + 'x' + str(screen_height) # width and height of the screen
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footer_left = [str_width_height, str(tui.last_pressed_ch)] # and last pressed key as char integer ( Unicode code point)
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i += 1 # number of screen reloads
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initscr.border("Python curses in action!", footer_left, str(i))
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if tui.last_pressed_ch == ord('1'):
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test_text(initscr)
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elif tui.last_pressed_ch == ord('2'):
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full_text(initscr, i)
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elif tui.last_pressed_ch == ord('h'):
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help_text(initscr, tui, str_width_height)
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elif tui.last_pressed_ch == ord('q'):
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break
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else:
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standard_text(initscr)
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x_0 = 0
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x_1 = 1 # TODO
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w = 50
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t = i/100
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# define function normed to the range of [0, 1]
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y_1 = sine_wave(A=.5, k=.1, D=.5)
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y_1_2 = sine_wave(A=.5, k=.1, f=1+1/3, phi=30, D=.5, degree=True)
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y_1_3 = sine_wave(A=.5, k=.1, f=1+2/3, phi=60, D=.5, degree=True)
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y_2 = cosine_wave(A=.5, k=.1, f=2, D=.5)
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win_charts_line(initscr, [y_1, y_1_2, y_1_3, y_2], x_0, x_1, w, t, [209, 215, 221, 227], [5, 5, 5, 5])
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#win_charts_line(initscr, [y_1, y_1_2, y_1_3, y_2], x_0, x_1, w, t, [10, 7, 7, 7], [5, 1, 1, 1])
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#y_2 = cosine_wave(A=0.5, k=0.2, f=2, D=0.5)
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#win_charts_line(initscr, [y_1, y_2], x_0, x_1, w, t, [10, 7], [5, 1])
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win_chart_histogram(initscr, y_1, x_0, x_1, w, t)
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# mouse event has occurred
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if tui.last_pressed_mouse_ch == curses.KEY_MOUSE:
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try:
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_, mx, my, _, _ = curses.getmouse()
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initscr.text("Mouse pos " + str(mx) + " " + str(my), 1, 6)
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initscr.text(initscr.instr(my, mx, 5), mx, my, color_pair=5)
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except curses.error:
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pass
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# std content
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# cursor position (last addstr is cursor position)
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if tui.cursor_visibility > 0:
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initscr.text("", 1, 6)
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tui.refresh() # update the screen
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tui.getch()
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except Exception as e:
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import traceback
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print('\n'.join(traceback.format_exception(*sys.exc_info())))
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finally:
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tui.end()
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if __name__ == '__main__':
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import sys
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if len(sys.argv) > 1:
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main(sys.argv[1])
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else:
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main()
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