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Diffstat (limited to 'bin/reportlab/lib/codecharts.py')
| -rw-r--r-- | bin/reportlab/lib/codecharts.py | 365 |
1 files changed, 0 insertions, 365 deletions
diff --git a/bin/reportlab/lib/codecharts.py b/bin/reportlab/lib/codecharts.py deleted file mode 100644 index 3d8630364b8..00000000000 --- a/bin/reportlab/lib/codecharts.py +++ /dev/null @@ -1,365 +0,0 @@ -#Copyright ReportLab Europe Ltd. 2000-2004 -#see license.txt for license details -#history http://www.reportlab.co.uk/cgi-bin/viewcvs.cgi/public/reportlab/trunk/reportlab/lib/codecharts.py -#$Header $ -__version__=''' $Id ''' -__doc__="""Routines to print code page (character set) drawings. - -To be sure we can accurately represent characters in various encodings -and fonts, we need some routines to display all those characters. -These are defined herein. The idea is to include flowable, drawable -and graphic objects for single and multi-byte fonts. """ -import string -import codecs - -from reportlab.pdfgen.canvas import Canvas -from reportlab.platypus import Flowable -from reportlab.pdfbase import pdfmetrics, cidfonts -from reportlab.graphics.shapes import Drawing, Group, String, Circle, Rect -from reportlab.graphics.widgetbase import Widget -from reportlab.lib import colors - -adobe2codec = { - 'WinAnsiEncoding':'winansi', - 'MacRomanEncoding':'macroman', - 'MacExpert':'macexpert', - 'PDFDoc':'pdfdoc', - - } - -class CodeChartBase(Flowable): - """Basic bits of drawing furniture used by - single and multi-byte versions: ability to put letters - into boxes.""" - - def calcLayout(self): - "Work out x and y positions for drawing" - - - rows = self.codePoints * 1.0 / self.charsPerRow - if rows == int(rows): - self.rows = int(rows) - else: - self.rows = int(rows) + 1 - # size allows for a gray column of labels - self.width = self.boxSize * (1+self.charsPerRow) - self.height = self.boxSize * (1+self.rows) - - #handy lists - self.ylist = [] - for row in range(self.rows + 2): - self.ylist.append(row * self.boxSize) - self.xlist = [] - for col in range(self.charsPerRow + 2): - self.xlist.append(col * self.boxSize) - - def formatByte(self, byt): - if self.hex: - return '%02X' % byt - else: - return '%d' % byt - - def drawChars(self, charList): - """Fills boxes in order. None means skip a box. - Empty boxes at end get filled with gray""" - extraNeeded = (self.rows * self.charsPerRow - len(charList)) - for i in range(extraNeeded): - charList.append(None) - #charList.extend([None] * extraNeeded) - row = 0 - col = 0 - self.canv.setFont(self.fontName, self.boxSize * 0.75) - for ch in charList: # may be 2 bytes or 1 - if ch is None: - self.canv.setFillGray(0.9) - self.canv.rect((1+col) * self.boxSize, (self.rows - row - 1) * self.boxSize, - self.boxSize, self.boxSize, stroke=0, fill=1) - self.canv.setFillGray(0.0) - else: - try: - self.canv.drawCentredString( - (col+1.5) * self.boxSize, - (self.rows - row - 0.875) * self.boxSize, - ch, - ) - except: - self.canv.setFillGray(0.9) - self.canv.rect((1+col) * self.boxSize, (self.rows - row - 1) * self.boxSize, - self.boxSize, self.boxSize, stroke=0, fill=1) - self.canv.drawCentredString( - (col+1.5) * self.boxSize, - (self.rows - row - 0.875) * self.boxSize, - '?', - ) - self.canv.setFillGray(0.0) - col = col + 1 - if col == self.charsPerRow: - row = row + 1 - col = 0 - - def drawLabels(self, topLeft = ''): - """Writes little labels in the top row and first column""" - self.canv.setFillGray(0.8) - self.canv.rect(0, self.ylist[-2], self.width, self.boxSize, fill=1, stroke=0) - self.canv.rect(0, 0, self.boxSize, self.ylist[-2], fill=1, stroke=0) - self.canv.setFillGray(0.0) - - #label each row and column - self.canv.setFont('Helvetica-Oblique',0.375 * self.boxSize) - byt = 0 - for row in range(self.rows): - if self.rowLabels: - label = self.rowLabels[row] - else: # format start bytes as hex or decimal - label = self.formatByte(row * self.charsPerRow) - self.canv.drawCentredString(0.5 * self.boxSize, - (self.rows - row - 0.75) * self.boxSize, - label - ) - for col in range(self.charsPerRow): - self.canv.drawCentredString((col + 1.5) * self.boxSize, - (self.rows + 0.25) * self.boxSize, - self.formatByte(col) - ) - - if topLeft: - self.canv.setFont('Helvetica-BoldOblique',0.5 * self.boxSize) - self.canv.drawCentredString(0.5 * self.boxSize, - (self.rows + 0.25) * self.boxSize, - topLeft - ) - -class SingleByteEncodingChart(CodeChartBase): - def __init__(self, faceName='Helvetica', encodingName='WinAnsiEncoding', - charsPerRow=16, boxSize=14, hex=1): - self.codePoints = 256 - self.faceName = faceName - self.encodingName = encodingName - self.fontName = self.faceName + '-' + self.encodingName - self.charsPerRow = charsPerRow - self.boxSize = boxSize - self.hex = hex - self.rowLabels = None - pdfmetrics.registerFont(pdfmetrics.Font(self.fontName, - self.faceName, - self.encodingName) - ) - - self.calcLayout() - - - def draw(self): - self.drawLabels() - charList = [None] * 32 + map(chr, range(32, 256)) - - #we need to convert these to Unicode, since ReportLab - #2.0 can only draw in Unicode. - - encName = self.encodingName - #apply some common translations - encName = adobe2codec.get(encName, encName) - decoder = codecs.lookup(encName)[1] - def decodeFunc(txt): - if txt is None: - return None - else: - return decoder(txt, errors='replace')[0] - - charList = [decodeFunc(ch) for ch in charList] - - - - self.drawChars(charList) - self.canv.grid(self.xlist, self.ylist) - - -class KutenRowCodeChart(CodeChartBase): - """Formats one 'row' of the 94x94 space used in many Asian encodings.aliases - - These deliberately resemble the code charts in Ken Lunde's "Understanding - CJKV Information Processing", to enable manual checking. Due to the large - numbers of characters, we don't try to make one graphic with 10,000 characters, - but rather output a sequence of these.""" - #would be cleaner if both shared one base class whose job - #was to draw the boxes, but never mind... - def __init__(self, row, faceName, encodingName): - self.row = row - self.codePoints = 94 - self.boxSize = 18 - self.charsPerRow = 20 - self.rows = 5 - self.rowLabels = ['00','20','40','60','80'] - self.hex = 0 - self.faceName = faceName - self.encodingName = encodingName - - try: - # the dependent files might not be available - font = cidfonts.CIDFont(self.faceName, self.encodingName) - pdfmetrics.registerFont(font) - except: - # fall back to English and at least shwo we can draw the boxes - self.faceName = 'Helvetica' - self.encodingName = 'WinAnsiEncoding' - self.fontName = self.faceName + '-' + self.encodingName - self.calcLayout() - - def makeRow(self, row): - """Works out the character values for this kuten row""" - cells = [] - if string.find(self.encodingName, 'EUC') > -1: - # it is an EUC family encoding. - for col in range(1, 95): - ch = chr(row + 160) + chr(col+160) - cells.append(ch) -## elif string.find(self.encodingName, 'GB') > -1: -## # it is an EUC family encoding. -## for col in range(1, 95): -## ch = chr(row + 160) + chr(col+160) - else: - cells.append([None] * 94) - return cells - - def draw(self): - self.drawLabels(topLeft= 'R%d' % self.row) - - # work out which characters we need for the row - #assert string.find(self.encodingName, 'EUC') > -1, 'Only handles EUC encoding today, you gave me %s!' % self.encodingName - - # pad out by 1 to match Ken Lunde's tables - charList = [None] + self.makeRow(self.row) - self.drawChars(charList) - self.canv.grid(self.xlist, self.ylist) - - -class Big5CodeChart(CodeChartBase): - """Formats one 'row' of the 94x160 space used in Big 5 - - These deliberately resemble the code charts in Ken Lunde's "Understanding - CJKV Information Processing", to enable manual checking.""" - def __init__(self, row, faceName, encodingName): - self.row = row - self.codePoints = 160 - self.boxSize = 18 - self.charsPerRow = 16 - self.rows = 10 - self.hex = 1 - self.faceName = faceName - self.encodingName = encodingName - self.rowLabels = ['4','5','6','7','A','B','C','D','E','F'] - try: - # the dependent files might not be available - font = cidfonts.CIDFont(self.faceName, self.encodingName) - pdfmetrics.registerFont(font) - except: - # fall back to English and at least shwo we can draw the boxes - self.faceName = 'Helvetica' - self.encodingName = 'WinAnsiEncoding' - self.fontName = self.faceName + '-' + self.encodingName - self.calcLayout() - - def makeRow(self, row): - """Works out the character values for this Big5 row. - Rows start at 0xA1""" - cells = [] - if string.find(self.encodingName, 'B5') > -1: - # big 5, different row size - for y in [4,5,6,7,10,11,12,13,14,15]: - for x in range(16): - col = y*16+x - ch = chr(row) + chr(col) - cells.append(ch) - - else: - cells.append([None] * 160) - return cells - - def draw(self): - self.drawLabels(topLeft='%02X' % self.row) - - charList = self.makeRow(self.row) - self.drawChars(charList) - self.canv.grid(self.xlist, self.ylist) - - -def hBoxText(msg, canvas, x, y, fontName): - """Helper for stringwidth tests on Asian fonts. - - Registers font if needed. Then draws the string, - and a box around it derived from the stringWidth function""" - canvas.saveState() - try: - font = pdfmetrics.getFont(fontName) - except KeyError: - font = cidfonts.UnicodeCIDFont(fontName) - pdfmetrics.registerFont(font) - - canvas.setFillGray(0.8) - canvas.rect(x,y,pdfmetrics.stringWidth(msg, fontName, 16),16,stroke=0,fill=1) - canvas.setFillGray(0) - canvas.setFont(fontName, 16,16) - canvas.drawString(x,y,msg) - canvas.restoreState() - - -class CodeWidget(Widget): - """Block showing all the characters""" - def __init__(self): - self.x = 0 - self.y = 0 - self.width = 160 - self.height = 160 - - def draw(self): - dx = self.width / 16.0 - dy = self.height / 16.0 - g = Group() - g.add(Rect(self.x, self.y, self.width, self.height, - fillColor=None, strokeColor=colors.black)) - for x in range(16): - for y in range(16): - charValue = y * 16 + x - if charValue > 32: - s = String(self.x + x * dx, - self.y + (self.height - y*dy), chr(charValue)) - g.add(s) - return g - - - - - - -def test(): - c = Canvas('codecharts.pdf') - c.setFont('Helvetica-Bold', 24) - c.drawString(72, 750, 'Testing code page charts') - cc1 = SingleByteEncodingChart() - cc1.drawOn(c, 72, 500) - - cc2 = SingleByteEncodingChart(charsPerRow=32) - cc2.drawOn(c, 72, 300) - - cc3 = SingleByteEncodingChart(charsPerRow=25, hex=0) - cc3.drawOn(c, 72, 100) - -## c.showPage() -## -## c.setFont('Helvetica-Bold', 24) -## c.drawString(72, 750, 'Multi-byte Kuten code chart examples') -## KutenRowCodeChart(1, 'HeiseiMin-W3','EUC-H').drawOn(c, 72, 600) -## KutenRowCodeChart(16, 'HeiseiMin-W3','EUC-H').drawOn(c, 72, 450) -## KutenRowCodeChart(84, 'HeiseiMin-W3','EUC-H').drawOn(c, 72, 300) -## -## c.showPage() -## c.setFont('Helvetica-Bold', 24) -## c.drawString(72, 750, 'Big5 Code Chart Examples') -## #Big5CodeChart(0xA1, 'MSungStd-Light-Acro','ETenms-B5-H').drawOn(c, 72, 500) - - c.save() - print 'saved codecharts.pdf' - -if __name__=='__main__': - test() - - |