X-Git-Url: https://git.ctpug.org.za/?a=blobdiff_plain;f=naja%2Fwidgets%2Ftext.py;h=5dac4e622952b6f3407df7f95e622cf8db1498aa;hb=0993e2118ba01536d61f59a96985280429da20f9;hp=39178ed8777ee3e500276b95c975993721e681e2;hpb=18eaa15b16160df3dcd23dd2773603d1f2e179ce;p=naja.git diff --git a/naja/widgets/text.py b/naja/widgets/text.py index 39178ed..5dac4e6 100644 --- a/naja/widgets/text.py +++ b/naja/widgets/text.py @@ -1,22 +1,256 @@ -from naja.constants import FONT, FONT_SIZE -from naja.widgets.base import Widget +import pygame +import pygame.locals as pgl + +from naja.constants import FONT, FONT_SIZE, EIGHT_BIT_SCALE, PALETTE, KEYS from naja.resources import resources +from naja.resources.mutators import EIGHT_BIT, R180, blender +from naja.utils import convert_colour +from naja.widgets.base import Widget + + +MARKUP_MAP = { + 'NORTH': ('glyphs/arrow_up.png', None), + 'SOUTH': ('glyphs/arrow_down.png', None), + 'EAST': ('glyphs/arrow_right.png', None), + 'WEST': ('glyphs/arrow_left.png', None), + 'RETURN': ('glyphs/return.png', None), + 'HEALTH': ('glyphs/health.png', PALETTE.DARK_RED), + 'WINTOKEN': ('glyphs/win.png', PALETTE.DARK_OLIVE), + 'KEY': ('glyphs/key.png', None), + 'MSB': ('glyphs/msb.png', None), + 'RED': ('glyphs/key.png', PALETTE.ORANGE), + 'GREEN': ('glyphs/key.png', PALETTE.GREEN), + 'BLUE': ('glyphs/key.png', PALETTE.BLUE), + 'CLOCKWISE': ('glyphs/clockwise.png', None), + 'ANTICLOCKWISE': ('glyphs/anticlockwise.png', None), + 'SHIFT_LEFT': ('glyphs/shift_left.png', None), + 'SHIFT_RIGHT': ('glyphs/shift_right.png', None), + 'COUNTDOWN': ('glyphs/countdown_4.png', PALETTE.DARK_VIOLET), + + 'HEALTH_NOCOLOUR': ('glyphs/health.png', None), + 'WINTOKEN_NOCOLOUR': ('glyphs/win.png', None), +} + + +class Glyph(object): + def __init__(self, markup_text, glyph_keys, suffix=''): + self.markup_text = markup_text + self.glyph_keys = glyph_keys + self.text = ' ' * len(self.glyph_keys) + suffix class TextWidget(Widget): - def __init__(self, pos, text, size=None, fontname=None, fontsize=None, - colour=None): - super(TextWidget, self).__init__(pos, size) + + VIEW_PORT_DY = 50 + + def __init__(self, pos, text, fontname=None, fontsize=None, + colour=None, unselectable_colour=None, view_port=None, + centre=False, border=0, border_colour=PALETTE.GREY, + padding=2): + super(TextWidget, self).__init__(pos) self.text = text self.fontname = fontname or FONT - self.fontsize = fontsize or FONT_SIZE - self.colour = colour or (0, 0, 0) + self.fontsize = (fontsize or FONT_SIZE) // EIGHT_BIT_SCALE + self.colour = convert_colour(colour or PALETTE.BLACK) + if unselectable_colour is not None: + unselectable_colour = convert_colour(unselectable_colour) + self.unselectable_colour = unselectable_colour + self.view_port = ( + pygame.Rect((0, 0), view_port) if view_port is not None else None) + self.centre = centre + self.centre_pos = pos + self.border = border + self.border_colour = convert_colour(border_colour) + self.padding = padding + + def render_line(self, text): + colour = self.colour + if not self.is_selectable() and self.unselectable_colour is not None: + colour = self.unselectable_colour + text_surf = self.font.render(text, True, colour) + text_rect = text_surf.get_rect() + return pygame.transform.scale( + text_surf, (text_rect.width * EIGHT_BIT_SCALE, + text_rect.height * EIGHT_BIT_SCALE)) + + def render_border(self, surface): + if not self.border or not self.border_colour: + return + rect = surface.get_rect() + rect = rect.inflate(- self.border / 2, - self.border / 2) + pygame.draw.rect(surface, self.border_colour, rect, self.border) + + def update_size(self): + if self.view_port is not None: + self.size = self.view_port.size + else: + self.size = self.surface.get_rect().size + if self.centre: + self.pos = (self.centre_pos[0] - self.size[0] // 2, + self.centre_pos[1]) def prepare(self): self.font = resources.get_font(self.fontname, self.fontsize) - self.surface = self.font.render(self.text, True, self.colour) - self.size = self.surface.get_rect().size + self.surface = self.render_line(self.text) + self.render_border(self.surface) + self.update_size() + + def handle_event(self, ev): + if self.view_port is None: + return super(TextWidget, self).handle_event(ev) + if ev.type == pgl.KEYDOWN: + if ev.key in KEYS.DOWN: + self.view_port.move_ip(0, self.VIEW_PORT_DY) + if self.view_port.bottom > self.surface.get_rect().bottom: + self.view_port.bottom = self.surface.get_rect().bottom + return True + elif ev.key in KEYS.UP: + self.view_port.move_ip(0, -self.VIEW_PORT_DY) + if self.view_port.top < 0: + self.view_port.top = 0 + return True + return super(TextWidget, self).handle_event(ev) def draw(self, surface): - surface.blit(self.surface, self.rect) + if self.view_port is None: + rect = self.rect + area = None + else: + rect = self.pos + area = self.view_port + surface.blit(self.surface, rect, area) + if self.view_port is not None: + self.draw_arrows(surface) + + def draw_arrows(self, surface): + if self.view_port.top > 0: + up = resources.get_image('bits', 'arrow_on.png', + transforms=(EIGHT_BIT,)) + icon_size = up.get_rect().height + pos = (self.pos[0] + self.view_port.width - icon_size, self.pos[1]) + surface.blit(up, pos) + if self.view_port.bottom < self.surface.get_rect().bottom: + down = resources.get_image('bits', 'arrow_on.png', + transforms=(R180, EIGHT_BIT)) + icon_size = down.get_rect().height + pos = (self.pos[0] + self.view_port.width - icon_size, + self.pos[1] + self.view_port.height - icon_size) + surface.blit(down, pos) + + +class TextBoxWidget(TextWidget): + def __init__(self, *args, **kwargs): + self.bg_colour = convert_colour(kwargs.pop('bg_colour', + PALETTE.LIGHT_VIOLET)) + self.box_width = kwargs.pop('box_width', 0) + self.full_width = kwargs.pop('full_width', True) + kwargs.setdefault('padding', 4) + + super(TextBoxWidget, self).__init__(*args, **kwargs) + + def lines(self, image_map): + if self.box_width != 0: + return self._wrapped_lines(image_map) + else: + return self.text.splitlines() + + def _prepare_glyph(self, image_map, glyph, current_words, lines): + size = self.font.size(' '.join(current_words[:-1] + [''])) + x = size[0] * EIGHT_BIT_SCALE + self.padding + y = size[1] * lines * EIGHT_BIT_SCALE + self.padding + for glyph_key in glyph.glyph_keys: + image_name, colour = MARKUP_MAP[glyph_key] + if colour is None: + colour = self.colour + image = resources.get_image( + image_name, transforms=(EIGHT_BIT, blender(colour))) + image_map[(x, y)] = image + x += image.get_width() + + def _check_markup(self, word): + suffix = '' + if word[-1] in '.,': + suffix = word[-1] + word = word[:-1] + + if not word: + return None + if word[0] == '{' and word[-1] == '}': + subwords = word[1:-1].split(',') + if all(subword in MARKUP_MAP for subword in subwords): + return Glyph(word + suffix, subwords, suffix) + + return None + + def _wrapped_lines(self, image_map): + def words_fit(words): + words_line = ' '.join(words) + width = self.font.size(words_line)[0] * EIGHT_BIT_SCALE + if width < self.box_width: + return True + elif len(words) == 1: + Exception("Word %r too long for box." % (words[0],)) + return False + + line_count = 0 + for line in self.text.splitlines(): + line = line.strip() + if not line: + line_count += 1 + yield line + continue + current_words = [] + remaining_words = line.split() + while remaining_words: + word = remaining_words.pop(0) + glyph = self._check_markup(word) + if glyph is not None: + word = glyph.text + current_words.append(word) + if words_fit(current_words): + if glyph is not None: + self._prepare_glyph( + image_map, glyph, current_words, line_count) + else: + line_count += 1 + yield ' '.join(current_words[:-1]) + current_words = [] + if glyph is not None: + word = glyph.markup_text + remaining_words.insert(0, word) + if current_words and words_fit(current_words): + line_count += 1 + yield ' '.join(current_words) + + def prepare(self): + self.font = resources.get_font(self.fontname, self.fontsize) + image_map = {} + rendered_lines = [] + width, height = self.padding * 2, self.padding * 2 + for line in self.lines(image_map): + line_surface = self.render_line(line) + line_rect = line_surface.get_rect() + rendered_lines.append(line_surface) + width = max(width, line_rect.width + self.padding * 2) + height += line_rect.height + + if self.full_width: + width = max(width, self.box_width) + + self.surface = pygame.surface.Surface((width, height), + pygame.locals.SRCALPHA) + self.surface.fill(self.bg_colour) + self.update_size() + + x, y = self.padding, self.padding + for line_surface in rendered_lines: + if self.centre: + x = (width - line_surface.get_rect().width) / 2 + x += self.padding + self.surface.blit(line_surface, (x, y)) + y += line_surface.get_rect().height + for pos, img in image_map.items(): + self.surface.blit(img, pos) + + self.render_border(self.surface)