···

       
379
       
379
       
 
       
        SVG node e.g. fill="red", font_size=20, text_anchor="middle". '''

     

       
380
       
380
       
 
       
    TAG_NAME = 'text'

     

       
381
       
381
       
 
       
    hasContent = True

     

       
382
       
382
       
-
       
    def __init__(self, text, fontSize, x, y, center=False, lineHeight=1,

     

       
383
       
383
       
-
       
                 **kwargs):

     

       
382
       
382
       
+
       
    def __init__(self, text, fontSize, x, y, center=False, valign=None,

     

       
383
       
383
       
+
       
                 lineHeight=1, **kwargs):

     

       
384
       
384
       
 
       
        singleLine = isinstance(text, str)

     

       
385
       
385
       
+
       
        if '\n' in text:

     

       
386
       
386
       
+
       
            text = text.splitlines()

     

       
387
       
387
       
+
       
            singleLine = False

     

       
385
       
388
       
 
       
        if not singleLine:

     

       
386
       
389
       
 
       
            text = tuple(text)

     

       
387
       
390
       
 
       
            numLines = len(text)

     

       
391
       
391
       
+
       
        else:

     

       
392
       
392
       
+
       
            numLines = 1

     

       
388
       
393
       
 
       
        centerOffset = 0

     

       
389
       
394
       
 
       
        emOffset = 0

     

       
390
       
395
       
 
       
        if center:

     

       
391
       
396
       
 
       
            if 'text_anchor' not in kwargs:

     

       
392
       
397
       
 
       
                kwargs['text_anchor'] = 'middle'

     

       
393
       
393
       
-
       
            if singleLine:

     

       
394
       
394
       
-
       
                centerOffset = fontSize*0.5*center

     

       
395
       
395
       
-
       
            else:

     

       
396
       
396
       
-
       
                emOffset = 0.4 - lineHeight * (numLines - 1) / 2

     

       
398
       
398
       
+
       
            if valign is None:

     

       
399
       
399
       
+
       
                if singleLine:

     

       
400
       
400
       
+
       
                    # Backwards compatible centering

     

       
401
       
401
       
+
       
                    centerOffset = fontSize*0.5*center

     

       
402
       
402
       
+
       
                else:

     

       
403
       
403
       
+
       
                    emOffset = 0.4 - lineHeight * (numLines - 1) / 2

     

       
404
       
404
       
+
       
        if valign == 'middle':

     

       
405
       
405
       
+
       
            emOffset = 0.4 - lineHeight * (numLines - 1) / 2

     

       
406
       
406
       
+
       
        elif valign == 'top':

     

       
407
       
407
       
+
       
            emOffset = 1

     

       
408
       
408
       
+
       
        elif valign == 'bottom':

     

       
409
       
409
       
+
       
            emOffset = -lineHeight * (numLines - 1)

     

       
397
       
410
       
 
       
        if centerOffset:

     

       
398
       
411
       
 
       
            try:

     

       
399
       
412
       
 
       
                fontSize = float(fontSize)

     

       
413
       
413
       
+
       
            except TypeError:

     

       
414
       
414
       
+
       
                pass

     

       
415
       
415
       
+
       
            else:

     

       
400
       
416
       
 
       
                translate = 'translate(0,{})'.format(centerOffset)

     

       
401
       
417
       
 
       
                if 'transform' in kwargs:

     

       
402
       
402
       
-
       
                    kwargs['transform'] = translate + ' ' + kwargs['transform']

     

       
418
       
418
       
+
       
                    kwargs['transform'] += ' ' + translate

     

       
403
       
419
       
 
       
                else:

     

       
404
       
420
       
 
       
                    kwargs['transform'] = translate

     

       
405
       
405
       
-
       
            except TypeError:

     

       
406
       
406
       
-
       
                pass

     

       
407
       
421
       
 
       
        super().__init__(x=x, y=-y, font_size=fontSize, **kwargs)

     

       
408
       
422
       
 
       
        if singleLine:

     

       
409
       
423
       
 
       
            self.escapedText = xml.escape(text)