# # Gramps - a GTK+/GNOME based genealogy program # # Copyright (C) 2000-2007 Donald N. Allingham # Copyright (C) 2002 Gary Shao # Copyright (C) 2007 Brian G. Matherly # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA # # $Id$ """ Provides base interface to text based documents. Specific document interfaces should be derived from the core classes. """ __author__ = "Donald N. Allingham" __revision__ = "$Revision$" #------------------------------------------------------------------------- # # standard python modules # #------------------------------------------------------------------------- import os from xml.sax.saxutils import escape def escxml(string): """ Escapes XML special characters. """ return escape(string, { '"' : '"' } ) #------------------------------------------------------------------------- # # GRAMPS modules # #------------------------------------------------------------------------- import Utils import FontScale import const #------------------------------------------------------------------------- # # set up logging # #------------------------------------------------------------------------- import logging log = logging.getLogger(".BaseDoc") #------------------------------------------------------------------------- # # SAX interface # #------------------------------------------------------------------------- try: from xml.sax import make_parser, handler, SAXParseException except ImportError: from _xmlplus.sax import make_parser, handler, SAXParseException #------------------------------------------------------------------------- # # constants # #------------------------------------------------------------------------- FONT_SANS_SERIF = 0 FONT_SERIF = 1 FONT_MONOSPACE = 2 #------------------------------------------------------------------------- # # Page orientation # #------------------------------------------------------------------------- PAPER_PORTRAIT = 0 PAPER_LANDSCAPE = 1 #------------------------------------------------------------------------- # # Paragraph alignment # #------------------------------------------------------------------------- PARA_ALIGN_CENTER = 0 PARA_ALIGN_LEFT = 1 PARA_ALIGN_RIGHT = 2 PARA_ALIGN_JUSTIFY = 3 #------------------------------------------------------------------------- # # Text vs. Graphics mode # #------------------------------------------------------------------------- TEXT_MODE = 0 GRAPHICS_MODE = 1 #------------------------------------------------------------------------- # # Line style # #------------------------------------------------------------------------- SOLID = 0 DASHED = 1 #------------------------------------------------------------------------- # # IndexMark types # #------------------------------------------------------------------------- INDEX_TYPE_ALP = 0 INDEX_TYPE_TOC = 1 #------------------------------------------------------------------------ # # cnv2color # #------------------------------------------------------------------------ def cnv2color(text): """ converts a hex value in the form of #XXXXXX into a tuple of integers representing the RGB values """ return (int(text[1:3], 16), int(text[3:5], 16), int(text[5:7], 16)) #------------------------------------------------------------------------ # # PaperSize # #------------------------------------------------------------------------ class PaperSize: """ Defines the dimensions of a sheet of paper. All dimensions are in centimeters. """ def __init__(self, name, height, width): """ Creates a new paper style with. @param name: name of the new style @param height: page height in centimeters @param width: page width in centimeters """ self.name = name self.height = height self.width = width def get_name(self): "Returns the name of the paper style" return self.name def get_height(self): "Returns the page height in cm" return self.height def set_height(self, height): "Sets the page height in cm" self.height = height def get_width(self): "Returns the page width in cm" return self.width def set_width(self, width): "Sets the page width in cm" self.width = width def get_height_inches(self): "Returns the page height in inches" return self.height / 2.54 def get_width_inches(self): "Returns the page width in inches" return self.width / 2.54 #------------------------------------------------------------------------ # # PaperStyle # #------------------------------------------------------------------------ class PaperStyle: """Define the various options for a sheet of paper. """ def __init__(self, size, orientation, lmargin=2.54, rmargin=2.54, tmargin=2.54, bmargin=2.54): """Create a new paper style. @param size: size of the new style @type size: PaperSize @param orientation: page orientation @type orientation: PAPER_PORTRAIT or PAPER_LANDSCAPE """ self.__orientation = orientation if orientation == PAPER_PORTRAIT: self.__size = PaperSize(size.get_name(), size.get_height(), size.get_width()) else: self.__size = PaperSize(size.get_name(), size.get_width(), size.get_height()) self.__lmargin = lmargin self.__rmargin = rmargin self.__tmargin = tmargin self.__bmargin = bmargin def get_size(self): """Return the size of the paper. @returns: object indicating the paper size @rtype: PaperSize """ return self.__size def get_orientation(self): """Return the orientation of the page. @returns: PAPER_PORTRIAT or PAPER_LANDSCAPE @rtype: int """ return self.__orientation def get_usable_width(self): """Return the width of the page area in centimeters. The value is the page width less the margins. """ return self.__size.get_width() - (self.__rmargin + self.__lmargin) def get_usable_height(self): """Return the height of the page area in centimeters. The value is the page height less the margins. """ return self.__size.get_height() - (self.__tmargin + self.__bmargin) def get_right_margin(self): """Return the right margin. @returns: Right margin in centimeters @rtype: float """ return self.__rmargin def get_left_margin(self): """Return the left margin. @returns: Left margin in centimeters @rtype: float """ return self.__lmargin def get_top_margin(self): """Return the top margin. @returns: Top margin in centimeters @rtype: float """ return self.__tmargin def get_bottom_margin(self): """Return the bottom margin. @returns: Bottom margin in centimeters @rtype: float """ return self.__bmargin #------------------------------------------------------------------------ # # FontStyle # #------------------------------------------------------------------------ class FontStyle: """ Defines a font style. Controls the font face, size, color, and attributes. In order to remain generic, the only font faces available are FONT_SERIF and FONT_SANS_SERIF. Document formatters should convert these to the appropriate fonts for the target format. The FontStyle represents the desired characteristics. There are no guarentees that the document format generator will be able implement all or any of the characteristics. """ def __init__(self, style=None): """ Creates a new FontStyle object, accepting the default values. @param style: if specified, initializes the FontStyle from the passed FontStyle instead of using the defaults. """ if style: self.face = style.face self.size = style.size self.italic = style.italic self.bold = style.bold self.color = style.color self.under = style.under else: self.face = FONT_SERIF self.size = 12 self.italic = 0 self.bold = 0 self.color = (0, 0, 0) self.under = 0 def set(self, face=None, size=None, italic=None, bold=None, underline=None, color=None): """ Sets font characteristics. @param face: font type face, either FONT_SERIF or FONT_SANS_SERIF @param size: type face size in points @param italic: True enables italics, False disables italics @param bold: True enables bold face, False disables bold face @param underline: True enables underline, False disables underline @param color: an RGB color representation in the form of three integers in the range of 0-255 represeting the red, green, and blue components of a color. """ if face != None: self.set_type_face(face) if size != None: self.set_size(size) if italic != None: self.set_italic(italic) if bold != None: self.set_bold(bold) if underline != None: self.set_underline(underline) if color != None: self.set_color(color) def set_italic(self, val): "0 disables italics, 1 enables italics" self.italic = val def get_italic(self): "1 indicates use italics" return self.italic def set_bold(self, val): "0 disables bold face, 1 enables bold face" self.bold = val def get_bold(self): "1 indicates use bold face" return self.bold def set_color(self, val): "sets the color using an RGB color tuple" self.color = val def get_color(self): "Returns an RGB color tuple" return self.color def set_size(self, val): "sets font size in points" self.size = val def get_size(self): "returns font size in points" return self.size def set_type_face(self, val): "sets the font face type" self.face = val def get_type_face(self): "returns the font face type" return self.face def set_underline(self, val): "1 enables underlining" self.under = val def get_underline(self): "1 indicates underlining" return self.under #------------------------------------------------------------------------ # # TableStyle # #------------------------------------------------------------------------ class TableStyle: """ Specifies the style or format of a table. The TableStyle contains the characteristics of table width (in percentage of the full width), the number of columns, and the width of each column as a percentage of the width of the table. """ def __init__(self, obj=None): """ Creates a new TableStyle object, with the values initialized to empty, with allocating space for up to 100 columns. @param obj: if not None, then the object created gets is attributes from the passed object instead of being initialized to empty. """ if obj: self.width = obj.width self.columns = obj.columns self.colwid = obj.colwid[:] else: self.width = 0 self.columns = 0 self.colwid = [ 0 ] * 100 def set_width(self, width): """ Sets the width of the table in terms of percent of the available width """ self.width = width def get_width(self): """ Returns the specified width as a percentage of the available space """ return self.width def set_columns(self, columns): """ Sets the number of columns. @param columns: number of columns that should be used. """ self.columns = columns def get_columns(self): """ Returns the number of columns """ return self.columns def set_column_widths(self, clist): """ Sets the width of all the columns at once, taking the percentages from the passed list. """ self.columns = len(clist) for i in range(self.columns): self.colwid[i] = clist[i] def set_column_width(self, index, width): """ Sets the width of a specified column to the specified width. @param index: column being set (index starts at 0) @param width: percentage of the table width assigned to the column """ self.colwid[index] = width def get_column_width(self, index): """ Returns the column width of the specified column as a percentage of the entire table width. @param index: column to return (index starts at 0) """ return self.colwid[index] #------------------------------------------------------------------------ # # TableCellStyle # #------------------------------------------------------------------------ class TableCellStyle: """ Defines the style of a particular table cell. Characteristics are: right border, left border, top border, bottom border, and padding. """ def __init__(self, obj=None): """ Creates a new TableCellStyle instance. @param obj: if not None, specifies that the values should be copied from the passed object instead of being initialized to empty. """ if obj: self.rborder = obj.rborder self.lborder = obj.lborder self.tborder = obj.tborder self.bborder = obj.bborder self.padding = obj.padding self.longlist = obj.longlist else: self.rborder = 0 self.lborder = 0 self.tborder = 0 self.bborder = 0 self.padding = 0 self.longlist = 0 def set_padding(self, val): "Returns the cell padding in centimeters" self.padding = val def set_right_border(self, val): """ Defines if a right border in used @param val: if True, a right border is used, if False, it is not """ self.rborder = val def set_left_border(self, val): """ Defines if a left border in used @param val: if True, a left border is used, if False, it is not """ self.lborder = val def set_top_border(self, val): """ Defines if a top border in used @param val: if True, a top border is used, if False, it is not """ self.tborder = val def set_bottom_border(self, val): """ Defines if a bottom border in used @param val: if 1, a bottom border is used, if 0, it is not """ self.bborder = val def set_longlist(self, val): self.longlist = val def get_padding(self): "Returns the cell padding in centimeters" return self.padding def get_right_border(self): "Returns 1 if a right border is requested" return self.rborder def get_left_border(self): "Returns 1 if a left border is requested" return self.lborder def get_top_border(self): "Returns 1 if a top border is requested" return self.tborder def get_bottom_border(self): "Returns 1 if a bottom border is requested" return self.bborder def get_longlist(self): return self.longlist #------------------------------------------------------------------------ # # ParagraphStyle # #------------------------------------------------------------------------ class ParagraphStyle: """ Defines the characteristics of a paragraph. The characteristics are: font (a FontStyle instance), right margin, left margin, first indent, top margin, bottom margin, alignment, level, top border, bottom border, right border, left border, padding, and background color. """ def __init__(self, source=None): """ @param source: if not None, then the ParagraphStyle is created using the values of the source instead of the default values. """ if source: self.font = FontStyle(source.font) self.rmargin = source.rmargin self.lmargin = source.lmargin self.first_indent = source.first_indent self.tmargin = source.tmargin self.bmargin = source.bmargin self.align = source.align self.level = source.level self.top_border = source.top_border self.bottom_border = source.bottom_border self.right_border = source.right_border self.left_border = source.left_border self.pad = source.pad self.bgcolor = source.bgcolor self.description = source.description self.tabs = source.tabs else: self.font = FontStyle() self.rmargin = 0 self.lmargin = 0 self.tmargin = 0 self.bmargin = 0 self.first_indent = 0 self.align = PARA_ALIGN_LEFT self.level = 0 self.top_border = 0 self.bottom_border = 0 self.right_border = 0 self.left_border = 0 self.pad = 0 self.bgcolor = (255, 255, 255) self.description = "" self.tabs = [] def set_description(self, text): """ Sets the desciption of the paragraph """ self.description = text def get_description(self): """ Returns the desciption of the paragraph """ return self.description def set(self, rmargin=None, lmargin=None, first_indent=None, tmargin=None, bmargin=None, align=None, tborder=None, bborder=None, rborder=None, lborder=None, pad=None, bgcolor=None, font=None): """ Allows the values of the object to be set. @param rmargin: right indent in centimeters @param lmargin: left indent in centimeters @param first_indent: first line indent in centimeters @param tmargin: space above paragraph in centimeters @param bmargin: space below paragraph in centimeters @param align: alignment type (PARA_ALIGN_LEFT, PARA_ALIGN_RIGHT, PARA_ALIGN_CENTER, or PARA_ALIGN_JUSTIFY) @param tborder: non zero indicates that a top border should be used @param bborder: non zero indicates that a bottom border should be used @param rborder: non zero indicates that a right border should be used @param lborder: non zero indicates that a left border should be used @param pad: padding in centimeters @param bgcolor: background color of the paragraph as an RGB tuple. @param font: FontStyle instance that defines the font """ if font != None: self.font = FontStyle(font) if pad != None: self.set_padding(pad) if tborder != None: self.set_top_border(tborder) if bborder != None: self.set_bottom_border(bborder) if rborder != None: self.set_right_border(rborder) if lborder != None: self.set_left_border(lborder) if bgcolor != None: self.set_background_color(bgcolor) if align != None: self.set_alignment(align) if rmargin != None: self.set_right_margin(rmargin) if lmargin != None: self.set_left_margin(lmargin) if first_indent != None: self.set_first_indent(first_indent) if tmargin != None: self.set_top_margin(tmargin) if bmargin != None: self.set_bottom_margin(bmargin) def set_header_level(self, level): """ Sets the header level for the paragraph. This is useful for numbered paragraphs. A value of 1 indicates a header level format of X, a value of two implies X.X, etc. A value of zero means no header level. """ self.level = level def get_header_level(self): "Returns the header level of the paragraph" return self.level def set_font(self, font): """ Sets the font style of the paragraph. @param font: FontStyle object containing the font definition to use. """ self.font = FontStyle(font) def get_font(self): "Returns the FontStyle of the paragraph" return self.font def set_padding(self, val): """ Sets the paragraph padding in centimeters @param val: floating point value indicating the padding in centimeters """ self.pad = val def get_padding(self): """Returns a the padding of the paragraph""" return self.pad def set_top_border(self, val): """ Sets the presence or absence of top border. @param val: True indicates a border should be used, False indicates no border. """ self.top_border = val def get_top_border(self): "Returns 1 if a top border is specified" return self.top_border def set_bottom_border(self, val): """ Sets the presence or absence of bottom border. @param val: True indicates a border should be used, False indicates no border. """ self.bottom_border = val def get_bottom_border(self): "Returns 1 if a bottom border is specified" return self.bottom_border def set_left_border(self, val): """ Sets the presence or absence of left border. @param val: True indicates a border should be used, False indicates no border. """ self.left_border = val def get_left_border(self): "Returns 1 if a left border is specified" return self.left_border def set_right_border(self, val): """ Sets the presence or absence of rigth border. @param val: True indicates a border should be used, False indicates no border. """ self.right_border = val def get_right_border(self): "Returns 1 if a right border is specified" return self.right_border def get_background_color(self): """ Returns a tuple indicating the RGB components of the background color """ return self.bgcolor def set_background_color(self, color): """ Sets the background color of the paragraph. @param color: tuple representing the RGB components of a color (0,0,0) to (255,255,255) """ self.bgcolor = color def set_alignment(self, align): """ Sets the paragraph alignment. @param align: PARA_ALIGN_LEFT, PARA_ALIGN_RIGHT, PARA_ALIGN_CENTER, or PARA_ALIGN_JUSTIFY """ self.align = align def get_alignment(self): "Returns the alignment of the paragraph" return self.align def get_alignment_text(self): """ Returns a text string representing the alginment, either 'left', 'right', 'center', or 'justify' """ if self.align == PARA_ALIGN_LEFT: return "left" elif self.align == PARA_ALIGN_CENTER: return "center" elif self.align == PARA_ALIGN_RIGHT: return "right" elif self.align == PARA_ALIGN_JUSTIFY: return "justify" return "unknown" def set_left_margin(self, value): "sets the left indent in centimeters" self.lmargin = value def set_right_margin(self, value): "sets the right indent in centimeters" self.rmargin = value def set_first_indent(self, value): "sets the first line indent in centimeters" self.first_indent = value def set_top_margin(self, value): "sets the space above paragraph in centimeters" self.tmargin = value def set_bottom_margin(self, value): "sets the space below paragraph in centimeters" self.bmargin = value def get_left_margin(self): "returns the left indent in centimeters" return self.lmargin def get_right_margin(self): "returns the right indent in centimeters" return self.rmargin def get_first_indent(self): "returns the first line indent in centimeters" return self.first_indent def get_top_margin(self): "returns the space above paragraph in centimeters" return self.tmargin def get_bottom_margin(self): "returns the space below paragraph in centimeters" return self.bmargin def set_tabs(self, tab_stops): assert(type(tab_stops) == type([])) self.tabs = tab_stops def get_tabs(self): return self.tabs #------------------------------------------------------------------------ # # StyleSheetList # #------------------------------------------------------------------------ class StyleSheetList: """ Interface into the user's defined style sheets. Each StyleSheetList has a predefined default style specified by the report. Additional styles are loaded from a specified XML file if it exists. """ def __init__(self, filename, defstyle): """ Creates a new StyleSheetList from the specified default style and any other styles that may be defined in the specified file. file - XML file that contains style definitions defstyle - default style """ defstyle.set_name('default') self.map = { "default" : defstyle } self.file = os.path.join(const.HOME_DIR, filename) self.parse() def delete_style_sheet(self, name): """ Removes a style from the list. Since each style must have a unique name, the name is used to delete the stylesheet. name - Name of the style to delete """ del self.map[name] def get_style_sheet_map(self): """ Returns the map of names to styles. """ return self.map def get_style_sheet(self, name): """ Returns the StyleSheet associated with the name name - name associated with the desired StyleSheet. """ return self.map[name] def get_style_names(self): "Returns a list of all the style names in the StyleSheetList" return self.map.keys() def set_style_sheet(self, name, style): """ Adds or replaces a StyleSheet in the StyleSheetList. The default style may not be replaced. name - name assocated with the StyleSheet to add or replace. style - definition of the StyleSheet """ style.set_name(name) if name != "default": self.map[name] = style def save(self): """ Saves the current StyleSheet definitions to the associated file. """ xml_file = open(self.file,"w") xml_file.write("\n") xml_file.write('\n') for name in self.map.keys(): if name == "default": continue sheet = self.map[name] xml_file.write('\n' % escxml(name)) for p_name in sheet.get_paragraph_style_names(): para = sheet.get_paragraph_style(p_name) xml_file.write('\n') xml_file.write('\n') xml_file.write('\n') xml_file.close() def parse(self): """ Loads the StyleSheets from the associated file, if it exists. """ try: if os.path.isfile(self.file): parser = make_parser() parser.setContentHandler(SheetParser(self)) the_file = open(self.file) parser.parse(the_file) the_file.close() except (IOError,OSError,SAXParseException): pass #------------------------------------------------------------------------ # # StyleSheet # #------------------------------------------------------------------------ class StyleSheet: """ A collection of named paragraph styles. """ def __init__(self, obj=None): """ Creates a new empty StyleSheet. @param obj: if not None, creates the StyleSheet from the values in obj, instead of creating an empty StyleSheet """ self.para_styles = {} self.draw_styles = {} self.table_styles = {} self.cell_styles = {} self.name = "" if obj != None: for style_name in obj.para_styles.keys(): style = obj.para_styles[style_name] self.para_styles[style_name] = ParagraphStyle(style) for style_name in obj.draw_styles.keys(): style = obj.draw_styles[style_name] self.draw_styles[style_name] = GraphicsStyle(style) for style_name in obj.table_styles.keys(): style = obj.table_styles[style_name] self.table_styles[style_name] = TableStyle(style) for style_name in obj.cell_styles.keys(): style = obj.cell_styles[style_name] self.cell_styles[style_name] = TableCellStyle(style) def set_name(self, name): """ Sets the name of the StyleSheet @param name: The name to be given to the StyleSheet """ self.name = name def get_name(self): """ Returns the name of the StyleSheet """ return self.name def clear(self): "Removes all styles from the StyleSheet" self.para_styles = {} self.draw_styles = {} self.table_styles = {} self.cell_styles = {} def add_paragraph_style(self, name, style): """ Adds a paragraph style to the style sheet. @param name: The name of the ParagraphStyle @param style: ParagraphStyle instance to be added. """ self.para_styles[name] = ParagraphStyle(style) def get_paragraph_style(self, name): """ Returns the ParagraphStyle associated with the name @param name: name of the ParagraphStyle that is wanted """ return ParagraphStyle(self.para_styles[name]) def get_paragraph_style_names(self): "Returns the the list of paragraph names in the StyleSheet" return self.para_styles.keys() def add_draw_style(self, name, style): """ Adds a draw style to the style sheet. @param name: The name of the GraphicsStyle @param style: GraphicsStyle instance to be added. """ self.draw_styles[name] = GraphicsStyle(style) def get_draw_style(self, name): """ Returns the GraphicsStyle associated with the name @param name: name of the GraphicsStyle that is wanted """ return GraphicsStyle(self.draw_styles[name]) def get_draw_style_names(self): "Returns the the list of draw style names in the StyleSheet" return self.draw_styles.keys() def add_table_style(self, name, style): """ Adds a table style to the style sheet. @param name: The name of the TableStyle @param style: TableStyle instance to be added. """ self.table_styles[name] = TableStyle(style) def get_table_style(self, name): """ Returns the TableStyle associated with the name @param name: name of the TableStyle that is wanted """ return TableStyle(self.table_styles[name]) def get_table_style_names(self): "Returns the the list of table style names in the StyleSheet" return self.table_styles.keys() def add_cell_style(self, name, style): """ Adds a cell style to the style sheet. @param name: The name of the TableCellStyle @param style: TableCellStyle instance to be added. """ self.cell_styles[name] = TableCellStyle(style) def get_cell_style(self, name): """ Returns the TableCellStyle associated with the name @param name: name of the TableCellStyle that is wanted """ return TableCellStyle(self.cell_styles[name]) def get_cell_style_names(self): "Returns the the list of cell style names in the StyleSheet" return self.cell_styles.keys() #------------------------------------------------------------------------- # # SheetParser # #------------------------------------------------------------------------- class SheetParser(handler.ContentHandler): """ SAX parsing class for the StyleSheetList XML file. """ def __init__(self, sheetlist): """ Creates a SheetParser class that populates the passed StyleSheetList class. sheetlist - StyleSheetList instance to be loaded from the file. """ handler.ContentHandler.__init__(self) self.sheetlist = sheetlist self.f = None self.p = None self.s = None self.sname = None self.pname = None def startElement(self, tag, attrs): """ Overridden class that handles the start of a XML element """ if tag == "sheet": self.s = StyleSheet(self.sheetlist.map["default"]) self.sname = attrs['name'] elif tag == "font": self.f = FontStyle() self.f.set_type_face(int(attrs['face'])) self.f.set_size(int(attrs['size'])) self.f.set_italic(int(attrs['italic'])) self.f.set_bold(int(attrs['bold'])) self.f.set_underline(int(attrs['underline'])) self.f.set_color(cnv2color(attrs['color'])) elif tag == "para": if attrs.has_key('description'): self.p.set_description(attrs['description']) self.p.set_right_margin(Utils.gfloat(attrs['rmargin'])) self.p.set_right_margin(Utils.gfloat(attrs['rmargin'])) self.p.set_left_margin(Utils.gfloat(attrs['lmargin'])) self.p.set_first_indent(Utils.gfloat(attrs['first'])) try: # This is needed to read older style files # lacking tmargin and bmargin self.p.set_top_margin(Utils.gfloat(attrs['tmargin'])) self.p.set_bottom_margin(Utils.gfloat(attrs['bmargin'])) except KeyError: pass self.p.set_padding(Utils.gfloat(attrs['pad'])) self.p.set_alignment(int(attrs['align'])) self.p.set_right_border(int(attrs['rborder'])) self.p.set_header_level(int(attrs['level'])) self.p.set_left_border(int(attrs['lborder'])) self.p.set_top_border(int(attrs['tborder'])) self.p.set_bottom_border(int(attrs['bborder'])) self.p.set_background_color(cnv2color(attrs['bgcolor'])) elif tag == "style": self.p = ParagraphStyle() self.pname = attrs['name'] def endElement(self, tag): "Overridden class that handles the start of a XML element" if tag == "style": self.p.set_font(self.f) self.s.add_paragraph_style(self.pname, self.p) elif tag == "sheet": self.sheetlist.set_style_sheet(self.sname, self.s) #------------------------------------------------------------------------ # # GraphicsStyle # #------------------------------------------------------------------------ class GraphicsStyle: """ Defines the properties of graphics objects, such as line width, color, fill, ect. """ def __init__(self, obj=None): """ Initialize the object with default values, unless a source object is specified. In that case, make a copy of the source object. """ if obj: self.para_name = obj.para_name self.shadow = obj.shadow self.shadow_space = obj.shadow_space self.color = obj.color self.fill_color = obj.fill_color self.lwidth = obj.lwidth self.lstyle = obj.lstyle else: self.para_name = "" self.shadow = 0 self.shadow_space = 0.2 self.lwidth = 0.5 self.color = (0, 0, 0) self.fill_color = (255, 255, 255) self.lstyle = SOLID def set_line_width(self, val): """ sets the line width """ self.lwidth = val def get_line_width(self): """ Returns the name of the StyleSheet """ return self.lwidth def get_line_style(self): return self.lstyle def set_line_style(self, val): self.lstyle = val def set_paragraph_style(self, val): self.para_name = val def set_shadow(self, val, space=0.2): self.shadow = val self.shadow_space = space def get_shadow_space(self): return self.shadow_space def set_color(self, val): self.color = val def set_fill_color(self, val): self.fill_color = val def get_paragraph_style(self): return self.para_name def get_shadow(self): return self.shadow def get_color(self): return self.color def get_fill_color(self): return self.fill_color #------------------------------------------------------------------------ # # IndexMark # #------------------------------------------------------------------------ class IndexMark: """ Defines a mark to be associated with text for indexing. """ def __init__(self, key="", itype=INDEX_TYPE_ALP, level=1): """ Initialize the object with default values, unless values are specified. """ self.key = key self.type = itype self.level = level #------------------------------------------------------------------------ # # BaseDoc # #------------------------------------------------------------------------ class BaseDoc: """ Base class for document generators. Different output formats, such as OpenOffice, AbiWord, and LaTeX are derived from this base class, providing a common interface to all document generators. """ def __init__(self, styles, paper_style, template): """ Creates a BaseDoc instance, which provides a document generation interface. This class should never be instantiated directly, but only through a derived class. @param styles: StyleSheet containing the styles used. @param paper_style: PaperStyle instance containing information about the paper. If set to None, then the document is not a page oriented document (e.g. HTML) @param template: Format template for document generators that are not page oriented. """ self.template = template self.paper = paper_style self._style_sheet = styles self._creator = "" self.print_req = 0 self.init_called = False self.type = "standard" def init(self): self.init_called = True def print_requested(self): self.print_req = 1 def set_creator(self, name): "Sets the owner name" self._creator = name def get_creator(self): "Returns the owner name" return self._creator def get_style_sheet(self): """ Returns the StyleSheet of the document. """ return StyleSheet(self._style_sheet) def set_style_sheet(self, style_sheet): """ Sets the StyleSheet of the document. @param style_sheet: The new style sheet for the document @type style_sheet: StyleSheet """ self._style_sheet = StyleSheet(style_sheet) def open(self, filename): """ Opens the document. @param filename: path name of the file to create """ raise NotImplementedError def close(self): "Closes the document" raise NotImplementedError #------------------------------------------------------------------------ # # TextDoc # #------------------------------------------------------------------------ class TextDoc: """ Abstract Interface for text document generators. Output formats for text reports must implment this interface to be used by the report system. """ def page_break(self): "Forces a page break, creating a new page" raise NotImplementedError def start_bold(self): raise NotImplementedError def end_bold(self): raise NotImplementedError def start_superscript(self): raise NotImplementedError def end_superscript(self): raise NotImplementedError def start_paragraph(self, style_name, leader=None): """ Starts a new paragraph, using the specified style name. @param style_name: name of the ParagraphStyle to use for the paragraph. @param leader: Leading text for a paragraph. Typically used for numbering. """ raise NotImplementedError def end_paragraph(self): "Ends the current parsgraph" raise NotImplementedError def start_table(self, name, style_name): """ Starts a new table. @param name: Unique name of the table. @param style_name: TableStyle to use for the new table """ raise NotImplementedError def end_table(self): "Ends the current table" raise NotImplementedError def start_row(self): "Starts a new row on the current table" raise NotImplementedError def end_row(self): "Ends the current row on the current table" raise NotImplementedError def start_cell(self, style_name, span=1): """ Starts a new table cell, using the paragraph style specified. @param style_name: TableCellStyle to use for the cell @param span: number of columns to span """ raise NotImplementedError def end_cell(self): "Ends the current table cell" raise NotImplementedError def write_note(self, text, format, style_name): """ Writes the note's text and take care of paragraphs, depending on the format. @param text: text to write. @param format: format to use for writing. True for flowed text, 1 for preformatted text. """ raise NotImplementedError def write_text(self, text, mark=None): """ Writes the text in the current paragraph. Should only be used after a start_paragraph and before an end_paragraph. @param text: text to write. @param mark: IndexMark to use for indexing (if supported) """ raise NotImplementedError def add_media_object(self, name, align, w_cm, h_cm): """ Adds a photo of the specified width (in centimeters) @param name: filename of the image to add @param align: alignment of the image. Valid values are 'left', 'right', 'center', and 'single' @param w_cm: width in centimeters @param h_cm: height in centimeters """ raise NotImplementedError #------------------------------------------------------------------------ # # DrawDoc # #------------------------------------------------------------------------ class DrawDoc: """ Abstract Interface for graphical document generators. Output formats for graphical reports must implment this interface to be used by the report system. """ def start_page(self): raise NotImplementedError def end_page(self): raise NotImplementedError def get_usable_width(self): """ Returns the width of the text area in centimeters. The value is the page width less the margins. """ width = self.paper.get_size().get_width() right = self.paper.get_right_margin() left = self.paper.get_left_margin() return width - (right + left) def get_usable_height(self): """ Returns the height of the text area in centimeters. The value is the page height less the margins. """ height = self.paper.get_size().get_height() top = self.paper.get_top_margin() bottom = self.paper.get_bottom_margin() return height - (top + bottom) def string_width(self, fontstyle, text): "Determine the width need for text in given font" return FontScale.string_width(fontstyle, text) def draw_path(self, style, path): raise NotImplementedError def draw_box(self, style, text, x, y, w, h): raise NotImplementedError def draw_text(self, style, text, x1, y1): raise NotImplementedError def center_text(self, style, text, x1, y1): raise NotImplementedError def rotate_text(self, style, text, x, y, angle): raise NotImplementedError def draw_line(self, style, x1, y1, x2, y2): raise NotImplementedError #------------------------------------------------------------------------------- # # GVDoc # #------------------------------------------------------------------------------- class GVDoc: """ Abstract Interface for Graphviz document generators. Output formats for Graphviz reports must implment this interface to be used by the report system. """ def add_node(self, id, label, shape="box", fillcolor="white", url="", htmloutput=False): """ Add a node to this graph. Nodes can be different shapes like boxes and circles. @param id: A unique identification value for this node. Example: "p55" @type id: string @param label: The text to be displayed in the node. Example: "John Smith" @type label: string @param shape: The shape for the node. Examples: "box", "ellipse", "circle" @type shape: string @param fillcolor: The fill color for the node. Examples: "blue", "lightyellow" @type fillcolor: string @param url: A URL for the node. @type url: string @param htmloutput: Whether the label contains HTML. @type htmloutput: boolean @return: nothing """ raise NotImplementedError def add_link(self, id1, id2, style="", head="", tail="", comment=""): """ Add a link between two nodes. @param id1: The unique identifier of the starting node. Example: "p55" @type id1: string @param id2: The unique identifier of the ending node. Example: "p55" @type id2: string @param comment: A text string displayed at the end of the link line. Example: "person C is the son of person A and person B" @type comment: string @return: nothing """ raise NotImplementedError def start_subgraph(self,id): """ Start a subgraph in this graph. @param id: The unique identifier of the subgraph. Example: "p55" @type id1: string @return: nothing """ raise NotImplementedError def end_subgraph(self): """ End a subgraph that was previously started in this graph. @return: nothing """ raise NotImplementedError