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Really ugly implementation of images in text regions

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This commit is contained in:
Kevin Lange 2017-01-10 20:13:48 +09:00
parent 949930b15c
commit dfdcb4b60a
1 changed files with 49 additions and 3 deletions
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52
userspace/py/lib/text_region.py
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@ -1,5 +1,9 @@
import unicodedata
from html.parser import HTMLParser
import math
import os
import cairo
import toaru_fonts
class TextUnit(object):
@ -7,7 +11,7 @@ class TextUnit(object):
self.string = string
self.unit_type = unit_type
self.font = font
self.width = font.width(self.string)
self.width = font.width(self.string) if font else 0
self.extra = {}
self.tag_group = None
@ -16,8 +20,9 @@ class TextUnit(object):
self.tag_group.append(self)
def set_font(self, font):
if self.unit_type == 4: return
self.font = font
self.width = font.width(self.string)
self.width = font.width(self.string) if font else 0
def set_extra(self, key, data):
self.extra[key] = data
@ -43,6 +48,7 @@ class TextRegion(object):
self.scroll = 0
self.ellipsis = ""
self.one_line = False
self.base_dir = ""
def set_alignment(self, align):
self.align = align
@ -73,6 +79,15 @@ class TextRegion(object):
current_width = 0
i += 1
continue
if unit.unit_type == 4:
if current_units:
self.lines.append(current_units)
i += 1
self.lines.append([unit])
current_units = []
current_width = 0
i += 1
continue
if current_width + unit.width > self.width:
if not current_units or self.one_line:
@ -239,6 +254,26 @@ class TextRegion(object):
elif tag == "h3":
self.font_stack.append(self.current_font)
self.current_font = toaru_fonts.Font(make_bold(self.current_font.font_number),16)
elif tag == "img":
target = None
for attr in attrs:
if attr[0] == "src":
target = attr[1]
if target and not target.startswith('/'):
target = tr.base_dir + target
if target and os.path.exists(target):
img = cairo.ImageSurface.create_from_png(target)
chop = math.ceil(img.get_height() / tr.line_height)
group = []
for i in range(chop):
u = TextUnit("",4,self.current_font)
u.set_extra('img',img)
u.set_extra('offset',i * tr.line_height)
if self.current_link:
u.set_extra('link',self.current_link)
u.set_tag_group(group)
u.width = img.get_width()
self.units.append(u)
else:
pass
@ -322,6 +357,8 @@ class TextRegion(object):
top_align = self.height - len(self.lines) * self.line_height
elif self.valign == 2: # middle
top_align = int((self.height - len(self.lines) * self.line_height) / 2)
su = context.get_cairo_surface() if 'get_cairo_surface' in dir(context) else None
cr = cairo.Context(su) if su else None
for line in self.lines[self.scroll:]:
if current_height > self.height:
break
@ -331,6 +368,15 @@ class TextRegion(object):
elif self.align == 2: # center
left_align = int((self.width - sum([u.width for u in line])) / 2)
for unit in line:
unit.font.write(context, self.x + left_align, self.y + current_height + top_align, unit.string)
if unit.unit_type == 4:
cr.save()
extra = 3
cr.translate(self.x + left_align, self.y + current_height + top_align)
cr.rectangle(0,-self.line_height+extra,unit.extra['img'].get_width(),self.line_height)
cr.set_source_surface(unit.extra['img'],0,-unit.extra['offset']-self.line_height+extra)
cr.fill()
cr.restore()
elif unit.font:
unit.font.write(context, self.x + left_align, self.y + current_height + top_align, unit.string)
left_align += unit.width
current_height += self.line_height