inputbox.py

import pygame

pygame.init()

# Màu sắc
COLOR_INACTIVE = pygame.Color('lightskyblue3')
COLOR_ACTIVE = pygame.Color('dodgerblue2')
WHITE = pygame.Color('white')
BLACK = pygame.Color('black')

# Phông chữ
font_path = 'fonts/SVN-Determination Sans.otf'
font = pygame.font.Font(font_path, 15)


class InputBox():
    def __init__(self, x, y, w, h, text='', placeholder='Nhập ...'):
        self.rect = pygame.Rect(x, y, w, h)
        self.color = COLOR_INACTIVE
        self.text = text
        self.placeholder = placeholder
        self.txt_surface = font.render(self.text, True, WHITE)
        self.active = False

    def handle_event(self, event):
        if event.type == pygame.MOUSEBUTTONDOWN:
            if self.rect.collidepoint(event.pos):
                self.active = not self.active
            else:
                self.active = False
            self.color = COLOR_ACTIVE if self.active else COLOR_INACTIVE

        if event.type == pygame.KEYDOWN:
            if self.active:
                if event.key == pygame.K_BACKSPACE:
                    self.text = self.text[:-1]
                else:
                    self.text += event.unicode
                self.txt_surface = font.render(self.text, True, WHITE)

    def update(self):
        width = max(200, self.txt_surface.get_width() + 10)
        self.rect.w = width

    def draw(self, screen):
        if not self.text:
            txt_surface = font.render(self.placeholder, True, WHITE)
        else:
            txt_surface = self.txt_surface

        screen.blit(txt_surface, (self.rect.x + 5, self.rect.y + 5))
        pygame.draw.rect(screen, self.color, self.rect, 2)

    def get_text(self):
        return self.text

    def clear_text(self):
        self.text = ''
        self.txt_surface = font.render(self.text, True, BLACK)