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74 lines
2.9 KiB
74 lines
2.9 KiB
3 years ago
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import typing
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import pygame
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from config import font, MESSAGE_HEIGHT, WIDTH, CHAT_SELECTOR_WIDTH, HEIGHT, WHITE, DARKER_BLUE, GREY
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from dataclasses import dataclass
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@dataclass
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class TextField:
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"""
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Field for message input
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"""
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value: str = ''
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width: int = WIDTH - CHAT_SELECTOR_WIDTH - 80
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height: int = MESSAGE_HEIGHT * 2
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top_left_corner: typing.Tuple[int, int] = (CHAT_SELECTOR_WIDTH, HEIGHT - MESSAGE_HEIGHT * 2)
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is_focused: bool = False
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placeholder: str = ''
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cursor_position: int = 0
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def render(self) -> pygame.Surface:
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"""
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Render the text field onto a pygame surface
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:return: a surface with the field
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"""
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surface = pygame.Surface((self.width, self.height))
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surface.fill(WHITE)
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padding = 5
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pygame.draw.rect(surface, DARKER_BLUE, (padding, padding, self.width - padding * 2, self.height - padding * 2))
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if not self.value and self.placeholder:
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placeholder_text: pygame.Surface = font.render(self.placeholder, True, GREY)
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surface.blit(
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placeholder_text,
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(
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(self.width - placeholder_text.get_width()) // 2,
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(self.height - placeholder_text.get_height()) // 2
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)
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)
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if self.value:
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message_text: pygame.Surface = font.render(self.value, True, WHITE)
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surface.blit(
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message_text,
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(
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(self.width - message_text.get_width()) // 2,
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(self.height - message_text.get_height()) // 2
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)
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)
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return surface
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def process_event(self, event: pygame.event.Event):
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"""
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Handle a typing event or a click (to focus)
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:param event: a pygame event
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"""
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# If we have a click, we should focus the field if the click was inside or unfocus if it was outside
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if event.type == pygame.MOUSEBUTTONUP:
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self.is_focused = self.top_left_corner[0] <= event.pos[0] < self.top_left_corner[0] + self.width \
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and self.top_left_corner[1] <= event.pos[1] < self.top_left_corner[1] + self.height
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print(self.is_focused)
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if self.is_focused and hasattr(event, 'key') and event.type == 768:
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if event.key == pygame.K_BACKSPACE:
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self.value = self.value[:-1]
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self.cursor_position -= 1
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elif event.key == pygame.K_LEFT:
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self.cursor_position -= 1
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elif event.key == pygame.K_RIGHT:
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self.cursor_position += 1
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elif event.unicode:
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self.value = self.value[:self.cursor_position] + event.unicode + self.value[self.cursor_position:]
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self.cursor_position += 1
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# print(self.is_focused, event.type, getattr(event, 'key', None), getattr(event, 'unicode', None), self.value)
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