U Ñtœd’2ã@sRdZddlZddlmZddlmZdZGdd„deƒZdd „Ze d krNeƒdS) z Drawers for labels on plots. éN)Úwarn)ÚAbstractCairoDrawer)ÚCairoTextDrawercs„eZdZdZd\ZZZd\ZZd‡fdd„ Z dd d „Z dd d „Z ddd„Z dd„Z dd„Zedd„ƒZejdd„ƒZdd„Z‡ZS)rz†Class that draws text on a Cairo context. This class supports multi-line text unlike the original Cairo text drawing methods.©ÚleftÚcenterÚright)ÚtopÚbottomÚrcs$tƒ |d¡||_||_||_dS)zjConstructs a new instance that will draw the given C{text} on the given Cairo C{context}. )rrN)ÚsuperÚ__init__ÚtextÚhalignÚvalign)ÚselfÚcontextrrr©Ú __class__©úR/home/sam/Atlas/atlas_env/lib/python3.8/site-packages/igraph/drawing/cairo/text.pyr szCairoTextDrawer.__init__FcCsä|j}|j}| |j|j|j|¡}|s*dS| ¡dd…\}}}| |dd¡d}t|ƒ|} |j |j kr‚|j | ||} n,|j |j krª|j | |||d} n|} |D]$\} } } |  | | | ¡| | ¡q²| ¡dS)a`Draws the text in the current bounding box of the drawer. Since the class itself is an instance of L{AbstractCairoDrawer}, it has an attribute named C{bbox} which will be used as a bounding box. @param wrap: whether to allow re-wrapping of the text if it does not fit within the bounding box horizontally. Nérééç@)rÚbboxÚget_text_layoutrr ÚwidthÚ font_extentsÚ text_extentsÚlenrÚBOTTOMÚheightÚCENTERÚmove_toÚ show_textÚnew_path)rÚwrapÚctxrZ text_layoutÚ_Z font_descentÚ line_heightZybZ total_heightZdyÚref_xÚref_yÚlinerrrÚdraws"     zCairoTextDrawer.drawNc CsT|j}|dks|dkr"| ¡\}}| ¡d}|rJ|rJ|dkrJ| |¡}n|r`tdƒ| ¡}n| ¡}g}|j|jkrÆ|dkrŒ| ¡d}|D]2\} } } |  ||| d| || f¡||7}qnŠ|j|j kr"|dkrè| ¡d}||7}|D]*\} } } |  || | || f¡||7}qôn.|D](\} } } |  || || f¡||7}q&|S)a‹Calculates the layout of the current text. C{x} and C{y} denote the coordinates where the drawing should start. If they are both C{None}, the current position of the context will be used. Vertical alignment settings are not taken into account in this method as the text is not drawn within a box. @param x: The X coordinate of the reference point where the layout should start. @param y: The Y coordinate of the reference point where the layout should start. @param width: The width of the box in which the text will be fitted. It matters only when the text is right-aligned or centered. The text will overflow the box if any of the lines is longer than the box width and C{wrap} is C{False}. @param wrap: whether to allow re-wrapping of the text if it does not fit within the given width. @return: a list consisting of C{(x, y, line)} tuples where C{x} and C{y} refer to reference points on the Cairo canvas and C{line} refers to the corresponding text that should be plotted there. Nrrz,ignoring wrap=True as no width was specifiedr) rÚget_current_pointrÚ_iterlines_wrappedrÚ _iterlinesrr#rÚappendÚRIGHT) rÚxÚyrr'r(r*Z iterlinesÚresultr-Ú line_widthÚ x_bearingr)rrrrBs8           zCairoTextDrawer.get_text_layoutc CsD|j}| ||||¡D] \}}}| ||¡| |¡q| ¡dS)aÛDraws the text by setting up an appropriate path on the Cairo context and filling it. C{x} and C{y} denote the coordinates where the drawing should start. If they are both C{None}, the current position of the context will be used. Vertical alignment settings are not taken into account in this method as the text is not drawn within a box. @param x: The X coordinate of the reference point where the layout should start. @param y: The Y coordinate of the reference point where the layout should start. @param width: The width of the box in which the text will be fitted. It matters only when the text is right-aligned or centered. The text will overflow the box if any of the lines is longer than the box width and C{wrap} is C{False}. @param wrap: whether to allow re-wrapping of the text if it does not fit within the given width. N)rrr$r%r&) rr4r5rr'r(r+r,r-rrrÚdraw_atƒs   zCairoTextDrawer.draw_atccs>|j}|j d¡D]&}| |¡\}}}}}}|||fVqdS)zµIterates over the label line by line and returns a tuple containing the folloing for each line: the line itself, the width of the line and the X-bearing of the line.Ú N)rÚ_textÚsplitr)rr(r-Úxbr)r7rrrr1szCairoTextDrawer._iterlinesccs(|j}|j d¡D]}| |¡\}}}}}}||krD|||fVqgdd}}} t d|¡D]ª} |  ¡\} } | | ¡d} | r’| | ¡d}nd}|| 7}||krà|ràd |¡|| dfV| g| }}| dk rÞ| | ¡n&|| 7}| | ¡| dk r| | ¡|} q`|rd |¡|dfVqdS)aÚIterates over the label line by line and returns a tuple containing the folloing for each line: the line itself, the width of the line and the X-bearing of the line. The difference between this method and L{_iterlines()} is that this method is allowed to re-wrap the line if necessary. @param width: The width of the box in which the text will be fitted. Lines will be wrapped if they are wider than this width. r:rz (\S+)(\s+)?ér N) rr;r<rÚreÚfinditerÚgroupsÚjoinr2)rrr(r-r=r)r7Ú current_lineZ current_widthZlast_sep_widthÚmatchÚwordÚsepZ word_widthZ sep_widthrrrr0¦s4         z"CairoTextDrawer._iterlines_wrappedcCs|jS)zReturns the text to be drawn.)r;)rrrrrÑszCairoTextDrawer.textcCs|dkrd|_n t|ƒ|_dS)zœSets the text that will be drawn. If C{text} is C{None}, it will be mapped to an empty string; otherwise, it will be converted to a string.Nr )r;Ústr)rrrrrrÖsc Cs¤|j d¡}t|ƒdkr&|j |j¡S|j |d¡\}}}}}}|j ¡d}|dd…D]6} |j | ¡\} } } } }} t|| ƒ}||7}|| 7}q\||||||fS)a~Returns the X-bearing, Y-bearing, width, height, X-advance and Y-advance of the text. For multi-line text, the X-bearing and Y-bearing correspond to the first line, while the X-advance is extracted from the last line. and the Y-advance is the sum of all the Y-advances. The width and height correspond to the entire bounding box of the text.r:rrrN)rr<r rrrÚmax) rÚlinesr8Z y_bearingrr"Z x_advanceZ y_advancer*r-r)ÚwZyarrrrás$   ù  zCairoTextDrawer.text_extents)r rr)F)NNNF)NNNF)Ú__name__Ú __module__Ú __qualname__Ú__doc__ÚLEFTr#r3ÚTOPr!r r.rr9r1r0ÚpropertyrÚsetterrÚ __classcell__rrrrr s  # A  +  rcs(ddl‰ddlm}ddlm}|ƒ}d}d\}}| |j||¡}| |¡‰tˆ|ƒ}ˆ  ddd¡ˆ  d¡ˆ  dd||¡ˆ  ¡ˆ  d d d ¡t d |d ƒD]$}ˆ |d¡ˆ ||¡ˆ ¡q t d |d ƒD]$}ˆ d|¡ˆ ||¡ˆ ¡qÒˆ  d d d ¡ˆ d ¡t d |d ƒD]&}ˆ |d¡ˆ ||¡ˆ ¡qt d |d ƒD]&}ˆ d|¡ˆ ||¡ˆ ¡qP‡‡fd d„} |j|j|jf} t| ƒD]†\}} ˆ |d d¡| dddƒˆ |d d¡| dddƒˆ  ddd¡| |_| |d d¡|j|d dd d| dddƒqžtdƒD]v\}} tdƒD]b\} } ˆ  ddd¡| |_| |_|d | d d |d d | d df|_| ¡| dddƒq>q.d|_|j|_tdƒD]\\}} ˆ |d d¡| dddƒˆ  ddd¡| |_|j|d dddd| dddƒq¼| d¡dS)z&Testing routine for L{CairoTextDrawer}rN)Ú find_cairo)Ú TextAlignmentz)The quick brown fox jumps over a lazy dog)iXièrg0@çà?éÈgè?édcs@ˆ ¡\}}ˆ |||d¡ˆ ||dddˆj¡ˆ ¡dS)z8Marks the current point on the canvas by the given colorrVr>rrN)r/Zset_source_rgbaÚarcÚpiÚfill)ÚredÚgreenÚbluer4r5©rÚmathrrÚ mark_point(s ztest..mark_pointé(éŒ)rr)r rr izŠJackdaws love my big sphinx of quartz. 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