rename: LayoutItem -> LTItem, LayoutContainer -> LTContainer
git-svn-id: https://pdfminerr.googlecode.com/svn/trunk/pdfminer@203 1aa58f4a-7d42-0410-adbc-911cccaed67cpull/1/head
yusuke.shinyama.dummy
parent
c81142aa44
commit
609c6e1f5f
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@ -4,8 +4,7 @@ from pdfdevice import PDFDevice, PDFTextDevice
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from pdffont import PDFUnicodeNotDefined
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from pdftypes import LITERALS_DCT_DECODE
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from pdfcolor import LITERAL_DEVICE_GRAY, LITERAL_DEVICE_RGB
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from layout import LayoutContainer
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from layout import LTPage, LTText, LTLine, LTRect, LTPolygon
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from layout import LTContainer, LTPage, LTText, LTLine, LTRect, LTPolygon
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from layout import LTFigure, LTImage, LTChar, LTTextLine, LTTextBox, LTTextGroup
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from utils import apply_matrix_pt, mult_matrix
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from utils import enc, bbox2str, create_bmp
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@ -150,7 +149,7 @@ class TextConverter(PDFConverter):
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def render(item):
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if isinstance(item, LTText):
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self.write(item.text)
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elif isinstance(item, LayoutContainer):
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elif isinstance(item, LTContainer):
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for child in item:
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render(child)
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if isinstance(item, LTTextBox):
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@ -47,22 +47,24 @@ class LAParams(object):
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line_overlap=0.5,
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char_margin=3.0,
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line_margin=0.5,
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word_margin=0.1):
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word_margin=0.1,
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all_texts=False):
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self.writing_mode = writing_mode
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self.line_overlap = line_overlap
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self.char_margin = char_margin
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self.line_margin = line_margin
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self.word_margin = word_margin
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self.all_texts = all_texts
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return
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def __repr__(self):
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return ('<LAParams: writing_mode=%r, char_margin=%.1f, line_margin=%.1f, word_margin=%.1f>' %
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(self.writing_mode, self.char_margin, self.line_margin, self.word_margin))
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return ('<LAParams: writing_mode=%r, char_margin=%.1f, line_margin=%.1f, word_margin=%.1f all_texts=%r>' %
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(self.writing_mode, self.char_margin, self.line_margin, self.word_margin, self.all_texts))
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## LayoutItem
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## LTItem
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##
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class LayoutItem(object):
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class LTItem(object):
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def __init__(self, bbox):
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self.set_bbox(bbox)
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@ -84,90 +86,48 @@ class LayoutItem(object):
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return
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def is_hoverlap(self, obj):
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assert isinstance(obj, LayoutItem)
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assert isinstance(obj, LTItem)
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return obj.x0 <= self.x1 and self.x0 <= obj.x1
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def hdistance(self, obj):
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assert isinstance(obj, LayoutItem)
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assert isinstance(obj, LTItem)
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if self.is_hoverlap(obj):
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return 0
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else:
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return min(abs(self.x0-obj.x1), abs(self.x1-obj.x0))
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def hoverlap(self, obj):
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assert isinstance(obj, LayoutItem)
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assert isinstance(obj, LTItem)
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if self.is_hoverlap(obj):
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return min(abs(self.x0-obj.x1), abs(self.x1-obj.x0))
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else:
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return 0
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def is_voverlap(self, obj):
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assert isinstance(obj, LayoutItem)
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assert isinstance(obj, LTItem)
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return obj.y0 <= self.y1 and self.y0 <= obj.y1
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def vdistance(self, obj):
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assert isinstance(obj, LayoutItem)
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assert isinstance(obj, LTItem)
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if self.is_voverlap(obj):
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return 0
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else:
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return min(abs(self.y0-obj.y1), abs(self.y1-obj.y0))
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def voverlap(self, obj):
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assert isinstance(obj, LayoutItem)
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assert isinstance(obj, LTItem)
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if self.is_voverlap(obj):
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return min(abs(self.y0-obj.y1), abs(self.y1-obj.y0))
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else:
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return 0
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## LayoutContainer
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##
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class LayoutContainer(LayoutItem):
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def __init__(self, bbox, objs=None):
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LayoutItem.__init__(self, bbox)
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if objs:
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self.objs = objs[:]
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else:
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self.objs = []
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return
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def __repr__(self):
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return ('<container %s>' % bbox2str(self.bbox))
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def __iter__(self):
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return iter(self.objs)
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def __len__(self):
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return len(self.objs)
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def add(self, obj):
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self.objs.append(obj)
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return
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def merge(self, container):
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self.objs.extend(container.objs)
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return
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# fixate(): determines its boundery.
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def fixate(self):
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if not self.width and self.objs:
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(bx0, by0, bx1, by1) = (INF, INF, -INF, -INF)
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for obj in self.objs:
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bx0 = min(bx0, obj.x0)
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by0 = min(by0, obj.y0)
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bx1 = max(bx1, obj.x1)
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by1 = max(by1, obj.y1)
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self.set_bbox((bx0, by0, bx1, by1))
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return
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## LTPolygon
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##
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class LTPolygon(LayoutItem):
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class LTPolygon(LTItem):
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def __init__(self, linewidth, pts):
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LayoutItem.__init__(self, get_bounds(pts))
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LTItem.__init__(self, get_bounds(pts))
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self.pts = pts
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self.linewidth = linewidth
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return
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@ -196,10 +156,10 @@ class LTRect(LTPolygon):
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## LTImage
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##
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class LTImage(LayoutItem):
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class LTImage(LTItem):
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def __init__(self, name, stream, bbox):
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LayoutItem.__init__(self, bbox)
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LTItem.__init__(self, bbox)
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self.name = name
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self.stream = stream
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self.srcsize = (stream.get_any(('W', 'Width')),
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@ -240,7 +200,7 @@ class LTAnon(LTText):
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## LTChar
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##
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class LTChar(LayoutItem, LTText):
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class LTChar(LTItem, LTText):
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debug = 0
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@ -275,7 +235,7 @@ class LTChar(LayoutItem, LTText):
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(_,_,_,_,tx,ty) = self.matrix
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ty += descent
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bbox = (tx, ty, tx+dx, ty+dy)
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LayoutItem.__init__(self, bbox)
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LTItem.__init__(self, bbox)
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return
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def __repr__(self):
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@ -297,30 +257,54 @@ class LTChar(LayoutItem, LTText):
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return 0 < a*d and b*c <= 0
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## LTFigure
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## LTContainer
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##
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class LTFigure(LayoutContainer):
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class LTContainer(LTItem):
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def __init__(self, name, bbox, matrix):
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(x,y,w,h) = bbox
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bbox = get_bounds( apply_matrix_pt(matrix, (p,q))
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for (p,q) in ((x,y), (x+w,y), (x,y+h), (x+w,y+h)) )
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self.name = name
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self.matrix = matrix
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LayoutContainer.__init__(self, bbox)
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def __init__(self, bbox, objs=None):
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LTItem.__init__(self, bbox)
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if objs:
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self.objs = objs[:]
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else:
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self.objs = []
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return
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def __repr__(self):
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return ('<figure %r bbox=%s matrix=%s>' %
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(self.name, bbox2str(self.bbox), matrix2str(self.matrix)))
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return ('<container %s>' % bbox2str(self.bbox))
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def __iter__(self):
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return iter(self.objs)
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def __len__(self):
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return len(self.objs)
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def add(self, obj):
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self.objs.append(obj)
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return
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def merge(self, container):
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self.objs.extend(container.objs)
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return
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# fixate(): determines its boundery.
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def fixate(self):
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if not self.width and self.objs:
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(bx0, by0, bx1, by1) = (INF, INF, -INF, -INF)
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for obj in self.objs:
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bx0 = min(bx0, obj.x0)
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by0 = min(by0, obj.y0)
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bx1 = max(bx1, obj.x1)
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by1 = max(by1, obj.y1)
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self.set_bbox((bx0, by0, bx1, by1))
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return
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## LTTextLine
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##
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class LTTextLine(LayoutContainer):
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class LTTextLine(LTContainer):
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def __init__(self, objs):
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LayoutContainer.__init__(self, (0,0,0,0), objs)
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LTContainer.__init__(self, (0,0,0,0), objs)
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return
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def __repr__(self):
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@ -336,7 +320,7 @@ class LTTextLineHorizontal(LTTextLine):
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def __init__(self, objs, word_margin):
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LTTextLine.__init__(self, objs)
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LayoutContainer.fixate(self)
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LTContainer.fixate(self)
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objs = []
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x1 = INF
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for obj in csort(self.objs, key=lambda obj: obj.x0):
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@ -357,7 +341,7 @@ class LTTextLineVertical(LTTextLine):
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def __init__(self, objs, word_margin):
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LTTextLine.__init__(self, objs)
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LayoutContainer.fixate(self)
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LTContainer.fixate(self)
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objs = []
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y0 = -INF
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for obj in csort(self.objs, key=lambda obj: -obj.y1):
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@ -380,10 +364,10 @@ class LTTextLineVertical(LTTextLine):
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## A set of text objects that are grouped within
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## a certain rectangular area.
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##
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class LTTextBox(LayoutContainer):
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class LTTextBox(LTContainer):
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def __init__(self, objs):
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LayoutContainer.__init__(self, (0,0,0,0), objs)
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LTContainer.__init__(self, (0,0,0,0), objs)
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self.index = None
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return
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@ -410,12 +394,12 @@ class LTTextBoxVertical(LTTextBox):
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## LTTextGroup
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##
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class LTTextGroup(LayoutContainer):
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class LTTextGroup(LTContainer):
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def __init__(self, objs):
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assert objs
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LayoutContainer.__init__(self, (0,0,0,0), objs)
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LayoutContainer.fixate(self)
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LTContainer.__init__(self, (0,0,0,0), objs)
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LTContainer.fixate(self)
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return
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class LTTextGroupLRTB(LTTextGroup):
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@ -456,7 +440,7 @@ class Plane(object):
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# place(obj): place an object in a certain area.
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def place(self, obj):
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assert isinstance(obj, LayoutItem)
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assert isinstance(obj, LTItem)
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self.xobjs.append((obj.x0, obj))
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self.xobjs.append((obj.x1, obj))
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self.yobjs.append((obj.y0, obj))
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@ -566,12 +550,30 @@ def group_boxes(groupfunc, objs, distfunc, debug=0):
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return objs.pop()
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## LTFigure
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##
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class LTFigure(LTContainer):
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def __init__(self, name, bbox, matrix):
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(x,y,w,h) = bbox
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bbox = get_bounds( apply_matrix_pt(matrix, (p,q))
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for (p,q) in ((x,y), (x+w,y), (x,y+h), (x+w,y+h)) )
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self.name = name
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self.matrix = matrix
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LTContainer.__init__(self, bbox)
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return
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def __repr__(self):
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return ('<figure %r bbox=%s matrix=%s>' %
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(self.name, bbox2str(self.bbox), matrix2str(self.matrix)))
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## LTPage
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##
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class LTPage(LayoutContainer):
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class LTPage(LTContainer):
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def __init__(self, pageid, bbox, rotate=0):
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LayoutContainer.__init__(self, bbox)
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LTContainer.__init__(self, bbox)
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self.pageid = pageid
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self.rotate = rotate
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self.layout = None
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@ -582,7 +584,7 @@ class LTPage(LayoutContainer):
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def fixate(self, laparams):
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"""Perform the layout analysis."""
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LayoutContainer.fixate(self)
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LTContainer.fixate(self)
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(textobjs, otherobjs) = self.get_textobjs()
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if not laparams or not textobjs: return
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if laparams.writing_mode not in ('lr-tb', 'tb-rl'):
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