METHOD AND COMPUTER-READABLE MEDIUM FOR GENERATING A MULTIPLE COLUMN LAYOUT
TECHNICAL FIELD The embodiments of the invention relate generally to the field of document processing and, more specifically, to the field of multi-column layouts of document content
BACKGROUND OF THE INVENTION
Current desktop publishing and word processing application programs allow a user to create complex document layouts For instance, documents can be created that mclude text, graphics, tables, footnotes, endnotes, embedded objects, and a virtually endless array of other types of objects Document content can also be arranged in a manner to create visually appealing documents For instance, text can be wrapped around the various types of objects in a document to create an attractive layout Additionally, text can be formatted in multiple columns by laying out text and other document objects across multiple vertical columns Multi-column document layouts are easy to read and are commonly utilized in newspapers and magazines
Although previous desktop and word processing application programs are capable of creating documents with a multi-column layout, these previous applications are severely limited in their capabilities In particular, previous applications have allowed users to specify only the number of columns that should be utilized within the layout and the width of each of the columns The application program then renders the document content into the specified number of columns
More complex multi-column layouts have long been utilized within the newspaper and magazine industries For instance, a multi-column layout has been utilized wherem a heading, sub-heading, or lead-in spans multiple columns However, complex multi-column layouts such as these have been typically typeset by hand, which is a tedious and tune consuming process For complex multi-column layouts such as
these, current word processing and desktop publishing application programs require a user to manually define the page layout These programs may then format the content into the manually defined layout However, these programs cannot take the properties and constraints of the structural elements of a document and calculate the actual distribution of the content between pages and layout the content on each page automatically
It is with respect to these considerations and others that the various embodiments of the present invention have been made
BRIEF SUMMARY OF THE INVENTION In accordance with the present invention, the above and other problems are solved by a computer-implemented method and computer-readable medium for generating a multi-column layout Through the embodiments of the invention, complex multi-column layouts may be created, such as layouts that allow document content to span multiple columns
According to one aspect of the invention, a computer-implemented method is provided for generating a multi-column layout Accordmg to the method, a layout is defined for a portion of a document that defines the number of columns that should be utilized to layout the document content The layout also identifies one or more spans that should extend across two or more of the columns For instance, a layout may be defined that includes four columns A span may be defined for a headline that extends across all four of the columns, a span may be defined for a subheading that extends across three of the columns, and another span may be defined for a text lead-in that extends across only two of the columns
According to the embodiments of the mvention, each span area may be defined as being either a content defined span area or a height defined span area A content defined span area allows content to be laid out within the span until a defined point withm the content is reached In this manner, a particular span can be filled with content until the defined point is encountered This is useful for instance, for a headline or sub-heading A height defined span area allows content to be laid out
within the span until the content reaches a specified height In this manner, the height for a span may be defined and content may be laid out in the span until the height is reached This is useful, for instance, for a text lead-in
According to other aspects of the invention, content for each span area that is content defined is laid out until the specified point in the content is reached Content is laid out for each span area that is height defined until the specified height for the span is reached When all of the content and height defined spans have been laid out, any remaining content is laid out across all of the columns In particular, the remaining content may be column balanced across all of the columns
According to other embodiments of the invention, a layout manager is provided that is operative to provide content layout facilities for a client application, such as a word processmg application or desktop publishing application The layout manager is operative to receive from the client application the definition of a multi-column layout for content within a document The definition identifies the number of columns that should be utilized within the multi-column layout The definition also defines one or more spans that extend across two or more of the columns Each span is also defined as being content defined or height defined
The layout manager is further operative to receive from the client application the content to be laid out m each of the spans The layout manager lays out the content for each content defined span until the specified point in the content is reached The layout manager lays out the content for each height defined span until the specified height for the span is reached When all of the height and content defined spans have been laid out by the layout manager, any remaining content is laid out across all of the columns The remaining content may be column balanced by the layout manager When the layout manager has completed laying out the content in the defined multi-column layout, the layout results are returned to the client application for display
The invention may be implemented as a computer process, a computing system or as an article of manufacture such as a computer program product or computer readable media The computer program product may be a computer storage media readable by a computer system and encoding a computer program of instructions
for executing a computer process The computer program product may also be a propagated signal on a earner readable by a computmg system and encodmg a computer program of instructions for executing a computer process
These and various other features, as well as advantages, which characterize the present mvention, will be apparent from a reading of the following detailed descnption and a review of the associated drawings
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
FIGURE 1 is a computer system architecture diagram illustrating a computer system utilized in and provided by the various embodiments of the invention,
FIGURE 2 is a software architecture diagram that illustrates aspects of several software components utilized in the embodiments of the mvention,
FIGURES 3 and 4 are screen diagrams illustrating several multi-column layouts provided by the embodiments of the mvention, and
FIGURES 5-6 are flow diagrams that illustrate an exemplary process for generating a multi-column layout according to the various embodiments of the invention
DETAILED DESCRIPTION OF THE INVENTION Referring now to the drawings, m which like numerals represent like elements, various aspects of the present mvention will be descnbed In particular, FIGURE 1 and the correspondmg discussion are intended to provide a bnef, general descnption of a suitable computing environment in which embodiments of the mvention may be implemented While the mvention will be descnbed in the general context of program modules that run on an operating system on a personal computer, those skilled in the art will recognize that the invention may also be implemented in combination with other types of computer systems and program modules
Generally, program modules include routines, programs, components, data structures, and other types of structures that perform particular tasks or implement particular abstract data types Moreover, those skilled in the art will appreciate that the
invention may be practiced with other computer system configurations, including handheld devices, multiprocessor systems, microprocessor-based or programmable consumer electronics, minicomputers, mainframe computers, and the like The invention may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network In a distributed computmg environment, program modules may be located in both local and remote memory storage devices
Referring now to FIGURE 1, an illustrative computer architecture for a computer 2 utilized in the various embodiments of the invention will be described The computer architecture shown m FIGURE 1 illustrates a conventional desktop or laptop computer, including a central processing unit 5 ("CPU"), a system memory 7, including a random access memory 9 ("RAM") and a read-only memory ("ROM") 11, and a system bus 12 that couples the memory to the CPU 5 A basic input/output system containing the basic routines that help to transfer information between elements within the computer, such as during startup, is stored in the ROM 11 The computer 2 further includes a mass storage device 14 for storing an operating system 16, application programs, and other program modules, which will be described in greater detail below
The mass storage device 14 is connected to the CPU 5 through a mass storage controller (not shown) connected to the bus 12 The mass storage device 14 and its associated computer-readable media provide non-volatile storage for the computer 2 Although the descnption of computer-readable media contained herein refers to a mass storage device, such as a hard disk or CD-ROM drive, it should be appreciated by those skilled in the art that computer-readable media can be any available media that can be accessed by the computer 2
By way of example, and not limitation, computer-readable media may compnse computer storage media and communication media Computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storage of information such as computer-readable instructions, data structures, program modules or other data Computer storage media includes, but is not limited to, RAM, ROM, EPROM, EEPROM, flash memory or other
solid state memory technology, CD-ROM, digital versatile disks ("DVD"), or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by the computer 2
According to various embodiments of the invention, the computer 2 may operate in a networked environment using logical connections to remote computers through a network 18, such as the Internet The computer 2 may connect to the network 18 through a network interface unit 20 connected to the bus 12 It should be appreciated that the network interface unit 20 may also be utilized to connect to other types of networks and remote computer systems The computer 2 may also mclude an input/output controller 22 for receiving and processing input from a number of other devices, including a keyboard, mouse, or electronic stylus (not shown m FIGURE 1) Similarly, an input/output controller 22 may provide output to a display screen, a printer, or other type of output device
As mentioned briefly above, a number of program modules and data files may be stored in the mass storage device 14 and RAM 9 of the computer 2, including an operating system 16 suitable for controlling the operation of a networked personal computer, such as the WINDOWS XP operating system from MICROSOFT CORPORATION of Redmond, Washington. The mass storage device 14 and RAM 9 may also store one or more program modules In particular, the mass storage device 14 and the RAM 9 may store a word processing application program 10 As known to those skilled in the art, the word processing application program 10 is operative to provide functionality for creating and editing electronic documents, such as the document 24 According to one embodiment of the invention, the word processing application program 10 comprises the MICROSOFT WORD word processing application program from MICROSOFT CORPORATION It should be appreciated, however, that other word processing application programs from other manufacturers may be utilized to embody the various aspects of the present invention It should also be appreciated that other types of application programs that perform document layout functions may be utilized with the aspects of the present invention For instance, the
embodiments of the present invention may be utilized with desktop publishing programs, presentation programs, web browsers, and any other type of program that lays content out on a document page
In conjunction with the editing of a word processing document, the word processmg application program 10 provides functionality for allowing a user to create a multiple column layout In particular, a user may define a section of the document 24 or an appropriate sub-part of the document 24, such as a table, text box, footnote area, or other portion, as being formatted into multiple columns The word processmg application program 10 is then operative to format the portion of the document mto the multi-column format as requested The word processmg application program 10 may communicate with a layout manager 26 to assist m the formatting of the document 24 As will be descnbed m greater detail below, the layout manager 26 provides layout services to the word processmg application program 10, and to any other program executing on the computer 2 In particular, the layout manager 26 receives from a client application, such as the word processmg application program 10, a description of die multi-column layout and the content that should be laid out In response, the layout manager 26 generates the appropriate layout and returns the layout to the client appbcation for display Additional details regarding the operation of the layout manager 26 will be provided below with respect to FIGURES 2-6
Turning now to FIGURE 2, additional details will be provided regarding the interaction between a client appbcation, such as the word processmg application program 10, and the layout manager 26 As descnbed briefly above, the layout manager 26 provides document layout services to the application 10 In particular, the application 10 may communicate with the layout manager 26 to request the layout of portions of a document 24 stored in a backing store 34 In order to facilitate communication with the layout manager 26, the application 10 may implement one or more callback routines, illustrated in FIGURE 2 as callback code 32 Through the use of the callback code 32, the layout manager 26 may query the application program 10 for additional information necessary to layout various portions of the document
As will be described in greater detail below, the layout manager 26 provides facilities for laying out content m several complex multi-column formats The layout manager 26 provides these facilities m response to a request from the application program 10 to layout the content m a multi-column format The document manager 30 of the application program 10 may communicate with the layout manager 26 to request that content be laid out in a multi-column format The document manager 30 may provide a definition of the format to the layout manager 10 that descnbes the number of columns to be utilized in the multi-column format The document manager 30 may also identify to the layout manager 26 one or more spans to be included in the format Each span may extend across one or more of the columns
The document manager 30 may also define each span as bemg height defined or content defined A content defined span area allows content to be laid out within the span until a defined point within the content is reached A height defined span area allows content to be laid out within the span until the content reaches a specified height Additional details regarding height and content defined spans will be provided below with respect to FIGURES 3 and 4
The document manager 30 may also provide to the layout manager 26 the text and other content from the document that should be laid out into the multi-column format The document manager 30 may initially provide some of the content to the layout manager 26 The layout manager 26 may then request additional content from the callback code 32 as needed to layout the multi-column format The document manager 30 may also indicate to the layout manager 26 the style of the text to be laid out For instance, the document manager 30 may indicate the typestyle, size, and other information necessary to lay out the text to the layout manager 26
Once the layout manager 26 has laid out the content in the multi-column format m the manner described herein, the formatting result 36 is passed back to the document manager 30 In response to receiving the formatting result 36, the document manager 30 is operative to update the display tree 38 maintained by the application program 10 Based on the changes to the display tree 38, the application program 10 may update its rendered output 40 to display the formatting result to a user It should be
appreciated that the use of the display tree 38 is merely illustrative and that other methodologies may be utilized for updating the display of the formatting result Additional details regarding the operation of the application 10 and the layout manager 26 are provided below with respect to FIGURES 3-6
Referring now to FIGURE 3, a screen diagram illustrating one multi-column layout provided by the embodiments of the mvention will be described As shown m FIGURE 3, an exemplary multi-column layout 42A is provided that spans multiple columns In particular, the exemplary multi-column layout 42 spans the four columns 44A-44D The multi-column layout 42A shown in FIGURE 3 also mcludes several spans 46A-46C Each of the spans 46A-46C may be height or content defined For instance, the span 46A is content defined, thereby allowing a headline to be positioned at the top of all four columns 44A-44D The span 46B is also content defined, thereby allowing a sub-headmg to be shown that spans three columns 44A-44C The span 46C is height defined, thereby providing text that leads into the remainder of the content that is laid out mto the columns 44A-44D As shown in FIGURE 3, the remaining content may be laid out mto the columns 44A-44D This remaining content may also be column balanced thereby allowing the columns to end in approximately the same position even though they may be different heights
Turning now to FIGURE 4, a screen diagram illustrating another multi-column layout provided by the embodiments of the mvention will be described As shown m FIGURE 4, an exemplary mulu-polumn layout 42B is provided that spans two columns 44E and 44F In this example, only one span 46D has been defined that spans both of the columns 44E and 44F The span 46D has been defined as a height defined span In particular, a height 48 has been specified by the cbent application for the span 46D As will be described in detail below, the layout manager 26 will lay out content mto the span 46D until the content reaches the specified height 48 The layout manager 26 will then switch to rendering content mto the columns 44E and 44F As with the example described above with respect to FIGURE 3, the layout manager 26 may column balance the remaining content to ensure that the columns 44E and 44F end at
approximately the same location It should be appreciated that the font changes at the position where the layout switches from one column mto multiple columns
It should be appreciated that the multi-column layouts shown in FIGURES 3 and 4 are merely illustrative and that other combinations are possible utilizing the various embodiments of the present invention For instance, any number of columns may be utilized, unequal column widths may be specified, and other modifications may be made to the layouts known to those skilled in the art
Referring now to FIGURE 5, an illustrative routine 500 will be described illustrating a process for generating a multi-column layout It should be appreciated that although the embodiments of the mvention described herein are descnbed as being performed by the layout manager 26, the vanous aspects of the mvention may be utilized directly m application programs that perform page layout functions For instance, the embodiments of the mvention descnbed herein may be performed directly by the word processmg apphcation program 10
When readmg the discussion of the routines presented herein, it should be appreciated that the logical operations of vanous embodiments of the present mvention are implemented (1) as a sequence of computer implemented acts or program modules running on a computing system and/or (2) as interconnected machine logic circuits or circuit modules within the computing system The implementation is a matter of choice dependent on the performance requirements of the computing system implementing the mvention Accordingly, the logical operations illustrated in FIGURES 5-6, and making up the embodiments of the present mvention descnbed herein are referred to vanously as operations, structural devices, acts or modules It will be recognized by one skilled m the art that these operations, structural devices, acts and modules may be implemented in software, m firmware, m special purpose digital logic, and any combination thereof without deviating from the spuit and scope of the present invention as recited within me claims set forth herein
The routine 500 begins at operation 502 where the layout manager 26 receives from the client application a description of the basic properties of the multi-column layout The routine 500 then continues to operation 504, where the client
apphcation describes modifications to the basic number of columns In particular, the chent apphcation descnbes the spans that should be used in the multi-column layout For each span, the client application also indicates whether the span should be content or height defined If a span is content defined, the chent apphcation indicates the specific point m the content where rendering into the span should stop If a span is height defined, the client application indicates the specific height of the span The routine 500 then continues from operation 504 to operation 506
At operation 506, the chent apphcation indicates to the layout manager 26 any other parameters necessary to lay out the content For instance, a style for the content including the typeface and font size may be specified by the chent application The routine 500 then continues to operation 508 where the layout manager 26 begins laying out the content in the multi-column format beginning with the first span In particular, at operation 526, the layout manager 26 determines whether the current span is a content defined span If the current span is a content defined span, the routine 500 branches to operation 512 where the layout manager 26 lays out content in the current span until the span ends Once the span ends, the routine 500 continues to operation 514, where a determination is made as to whether any additional content defined spans exist If more content defined spans exist, the routine 500 branches back to operation 512, where the next content defined span is laid out If no additional content defined spans exist, the routine 500 continues to operation 516, described below
If, at operation 526, the layout manager 26 determines that the current span is not a content defined span, the routine 500 continues from operation 526 to operation 516 At operation 516, the layout manager 26 determines if any height defined spans exist If one or more height defined spans exist, the routine 500 branches to operation 524 At operation 524, the layout manager 26 fills the current span with content until the desired height is reached Once the desired height is reached, the routine 500 continues to operation 525, where a determination is made as to whether any additional height defined spans exist If more height defined spans exist, the routine 500 branches back to operation 524, where the next height defined span is laid
out If no additional content defined spans exist, the routine 500 continues to operation 518, described below
If, at operation 516, the layout manager 26 determines that no height defined spans exist, the routine 500 continues to operation 518 where the layout manager 26 lays out the remainmg content mto the columns In one embodiment, the layout manager 26 column balances the remaining content An illustrative routine 600 for column balancing the remainmg content is descnbed below with respect to FIGURE 6 From operation 518, the routine 500 continues to operation 520, where the formatting result is returned from the layout manager 26 to the client application for display The routine 500 then continues to operation 522, where it ends
At operation 524, a determination is made as to whether more spans remain to be laid out If additional spans remain to be laid out, the routine 500 branches to operation 510, where the next span is processed In particular, the next span is processed at operations 526, 512, 514, 516, 518, 520, and 524 m the manner descnbed above This process continues until no additional spans remain to be processed
It should be appreciated that the algorithm illustrated in FIGURE 5 lays out content defined spans pnor to laying out height defined spans This is a design choice based on the fact that many magazines and newspapers lay out text in this manner However, according to embodiments of the invention, height defined spans may be laid out pnor to content defined spans and the several types of spans may be intermingled
Refernng now to FIGURE 6, an illustrative routine 600 will be descnbed for column balancing the content in the specified columns The routine 600 begins at operation 602 where the layout manager 26 approximates the vertical size of the columns necessary to lay out the remainmg content In particular, the layout manager 26 approximates the vertical size of the columns necessary to lay out the remaining content in a manner that will allow the content in each column to end at approximately the same pomt
Once the layout manager 26 has approximated the size of the columns, the routine 600 continues to operation 604, where the layout manager 26 lays out the
remaining content into the approximately sized columns The routine 600 then continues to operation 606 where a determination is made as to whether the remaining content fit within the approximately sized columns If the remaining content did not fit, the routine 600 branches to operation 608 where the approximated size of the columns is mcreased slightly The routine 600 then continues to operation 611, where another determination is made as to whether the content fit If the content does not fit, the routine 600 branches back to operation 608, where the height of the columns is again mcreased If the content fits, the routine 600 continues to operation 610, discussed below
If, at operation 606, the layout manager 26 determines that the remaining content fit within the approximately sized columns, the routme 600 continues to operation 605, where the height of the shortest line is decreased The routme 600 then continues to operation 603, where a determination is made as to whether all of the content fits on the page If the content fits, the routine 600 then returns to operation 605, where the height of the shortest line is again decreased If the content does not fit, the routme 600 continues to operation 607, where the previous layout on which all of the content fit is utilized as the final layout From operation 607, the routme 600 continues to operation 610, where the content is laid out mto the approximately sized columns by the layout manager 26 The routine 600 then continues to operation 612, where it returns to operation 522, described above with respect to FIGURE 5
Based on the foregoing, it should be appreciated that the various embodiments of the invention include a method, system, apparatus, and computer-readable medium for generating a multi-column layout It should be also appreciated that the embodiments of the mvention described herein may also be utilized to provide a multi-column layout within other types of elements other than a page For instance, a multi-column layout may be generated within a section, text box, table cell, and footnotes
The above specification, examples and data provide a complete description of the manufacture and use of the composition of the invention Since many
embodiments of the mvention can be made without departmg from the spirit and scope of the mvention, the mvention resides in the claims hereinafter appended

We claim:
1. A computer-implemented method for generating a multiple column layout, the method comprising:
defining a layout for a portion of a document, the layout comprising at least two columns and at least two spans that extend across the at least two columns, wherein each span is defined as one of the following: content defined and height defined;
laying out a first portion of content from the document in each span that is defined as height defined until a specified height for the span is reached;
laying out a second portion of the content from the document in each span that is defined as content defined until a specified point in the content is reached wherein the second portion of the content precedes in the document the first portion of the content;
determining whether any of the content has been laid out in all of the spans that are defined as one of the following: content defined and height defined; and
in response to determining that any of the content has been laid out in all of the spans that are defined as one of the following: content defined and height defined, laying out a remaining portion of the content across all of the columns, wherein laying out the remaining portion of the content across all of the columns comprises approximating a vertical size for the columns necessary to lay out the remaining content such that the remaining content in each column is apportioned among the columns according to the amount of each column not occupied by either the first portion of the content from the document that is defined as height defined and the second portion of the content from the document that is defined as content defined and such that the remaining content in each column ends at the same point, wherein the at
least two spans extended across the at least two columns are different widths with respect to each other, the vertical size of each of the at least two columns are different with respect to each other and the width of the at least two columns are different with respect to each other, wherein the content in each span is formatted different than the content in the remaining portion of the content across all of the columns, wherein approximating the vertical size for the columns comprises:
determining if the remaining content will fit within the approximated vertical size for the columns,
in response to determining that the remaining content does not fit within the approximated vertical size for the columns, increasing the approximated vertical size for the columns and repeating the determining if the remaining content will fit until the remaining content will fit within the approximated vertical size for the columns, and
in response to determining that the remaining content does fit within the approximated vertical size for the columns, decreasing the approximated vertical size for the columns, repeating the determining if the remaining content does fit until the remaining content does not fit within the approximated vertical size for the columns, and returning to a previous layout on which all of the content fit.
2. The method of Claim 1, wherein a client application defines the layout and the spans and wherein a layout manager lays out the content and returns a layout result to the client application.
3. A computer-readable storage medium having computer-executable instructions stored thereon which, when executed by a computer, will cause the computer to:
define a layout for a portion of a document, the layout comprising at least two columns and at least two spans of content that extend across the at least two columns, wherein each span is defined as one of the following: content defined and height defined;
lay out a first portion of content from the document in each span that is defined as height defined until a specified height for the span is reached;
lay out a second portion of the content from the document in each span that is defined as content defined until a specified point in the content is reached wherein the second portion of the content precedes in the document the first portion of the content;
determine whether any of the content has been laid out in all of the spans that are defined as one of the following: content defined and height defined; and
in response to determining that any of the content has been laid out in all of the spans that are defined as one of the following: content defined and height defined, to lay out a remaining portion of the content across all of the columns, wherein laying out the remaining portion of the content across all of the columns comprises approximating a vertical size for the columns necessary to lay out the remaining content such that the remaining content in each column is apportioned is apportioned among the columns according to the amount of each column not occupied by either the first portion of the content from the document that is defined as height defined and the second portion of the content from the document that is defined as content defined and such that the remaining content in each column ends at the same point, wherein the at least two spans extended across the at least two columns are different widths with respect to each other, the vertical size of each of the at least two columns are different with respect to each other and the width of the at least two columns are different with respect to each other, wherein the content in each span is formatted different than the content in the remaining portion of
the content across all of the columns, wherein approximating the vertical size for the columns comprises:
determine if the remaining content will fit within the approximated vertical size for the columns,
in response to determining that the remaining content does not fit within the approximated vertical size for the columns, increase the approximated vertical size for the columns and repeat the determining if the remaining content will fit until the remaining content will fit within the approximated vertical size for the columns, and
in response to determining that the remaining content does fit within the approximated vertical size for the columns, decrease the approximated vertical size for the columns, repeat the determining if the remaining content does fit until the remaining content does not fit within the approximated vertical size for the columns, and return to a previous layout on which all of the content fit.
4. The computer-readable storage medium of Claim 3, wherein a client application defines the layout and the spans and wherein a layout manager lays out the content and returns a layout result to the client application.
5. A computer-implemented method for generating a multiple column layout, the method comprising:
providing a layout manager operative to receive from a client application the definition of a layout for content within a document, the layout comprising at least two columns and at least two spans that extend across the at least two columns, and wherein each span is defined by the client application as being one of the following: content defined and height defined, and to receive a request from the client application program to layout content from the document according to the definition; and wherein
the layout manager is further operative to:
lay out a first portion of the content from the document in each span that is defined as height defined until a specified height for the span is reached, to lay out a second portion of the content from the document in each span that is defined as content defined until a specified point in the content is reached, and to return the layout to the client application program wherein the second portion of the content precedes in the document the first portion of the content;
determine whether the any of the content has been laid out in all of the spans that have been defined by the client application program as being one of the following: content defined and height defined; and
in response to determining that any of the content has been laid out in all of the spans that are defined as one of the following: content defined and height defined, to lay out a remaining portion of the content across all of the columns, wherein laying out the remaining portion of the content across all of the columns comprises approximating a vertical size for the columns necessary to lay out the remaining content such that the remaining content in each column is apportioned is apportioned among the columns according to the amount of each column not occupied by either the first portion of the content from the document that is defined as height defined and the second portion of the content from the document that is defined as content defined and such that the remaining content in each column ends at the same point, , wherein the at least two spans extended across the at least two columns are different widths with respect to each other, the vertical size of each of the at least two columns are different with respect to each other and the width of the at least two columns are different with respect to each other, wherein the content in each span is formatted different than the content in the remaining portion of the content across all of the columns, wherein approximating the vertical size for the columns comprises:
determining if the remaining content will fit within the approximated vertical size for the columns,
in response to determining that the remaining content does not fit within the approximated vertical size for the columns, increasing the approximated vertical size for the columns and repeating the determining if the remaining content will fit until the remaining content will fit within the approximated vertical size for the columns, and
in response to determining that the remaining content does fit within the approximated vertical size for the columns, decreasing the approximated vertical size for the columns, repeating the determining if the remaining content does fit until the remaining content does not fit within the approximated vertical size for the columns, and returning to a previous layout on which all of the content fit.
6. The computer-implemented method of Claim 1, wherein defining the layout comprises defining the layout wherein the at least two spans are adjacent to one another.
7. The computer-implemented method of Claim 1, wherein defining the layout comprises defining the layout wherein each span that is defined as content defined is placed above each span that is defined as height defined.
8. The computer-implemented method of Claim 1, wherein defining the layout comprises defining the layout wherein the at least two columns are adjacent to one another.
9. The computer-implemented method of Claim 1, wherein defining the layout comprises defining the layout wherein the at least two spans are above the at least two columns.
10. The computer-readable storage medium of Claim 3, wherein causing the computer to define the layout comprises causing the computer to define the layout wherein the at least two spans are adjacent to one another.
11. The computer-readable storage medium of Claim 3, wherein causing the computer to define the layout comprises causing the computer to define the layout wherein each span that is defined as content defined is placed above each span that is defined as height defined.
12. The computer-readable storage medium of Claim 3, wherein causing the computer to define the layout comprises causing the computer to define the layout wherein the at least two columns are adjacent to one another.
13. The computer-readable storage medium of Claim 3, wherein causing the computer to define the layout comprises causing the computer to define the layout wherein the at least two spans are above the at least two columns.
14. The computer-implemented method of Claim 5, wherein providing the layout manager operative to receive from the client application the definition of the layout for content within the document, the layout comprising at least two columns and at least two spans comprises providing the layout manager operative to receive from the client application the definition of the layout for content within the document, the layout comprising at least two columns and at least two spans being adjacent to one another.