CN103268185A - Text display method and text display device for e-book reader - Google Patents
Text display method and text display device for e-book reader Download PDFInfo
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- CN103268185A CN103268185A CN2013101513151A CN201310151315A CN103268185A CN 103268185 A CN103268185 A CN 103268185A CN 2013101513151 A CN2013101513151 A CN 2013101513151A CN 201310151315 A CN201310151315 A CN 201310151315A CN 103268185 A CN103268185 A CN 103268185A
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Abstract
The invention provides a text display method and a text display device for an e-book reader. The method includes: recording data about character widths of each character in a vector font library under different font sizes and display setting information of a text, dividing the data of the text into more than one data segment, pre-typesetting each data segment according to the display setting information, determining corresponding starting and ending positions of each display text page displayed on a display screen in the text, searching the starting and ending positions of data corresponding to one received display text page requiring display, reading out the data between the starting position and the ending position, converting the data between the starting position and the ending position into code data, searching corresponding character images from the vector font library according to the code data, and displaying the character images on the display screen according to the display setting information. The device uses the method for displaying texts of e-books. The text display method and the text display device are capable of achieving rapid paging during e-book reading and effectively avoiding content discontinuity or messy codes during paging.
Description
Technical field
The present invention relates to the text-processing field of e-book reading device, particularly, is a kind of text display method of E-book reader and the device of this method of use.
Background technology
Existing a lot of electronic equipments all have the e-book reading function as mobile phone, panel computer etc., and these electronic equipments are equipped with display screen to show the text of e-book, therefore can be called as E-book reader.
The memory stores of E-book reader has the text of e-book, these texts are normally through the text behind the coding, can not directly be read by people, E-book reader need become text-converted specific character usually and be presented on the display screen, and what people saw by display screen all is through the character after the code conversion.
Usually, the text data amount of e-book is bigger, is difficult to all show in a screen of display screen, therefore need be divided into multipage and show, shows a page data each time.In order to adapt to the display screen size of different E-book readers, can't have page break in the existing e-book text, but read the data of e-book text by E-book reader after, according to the size of display screen the data of text be carried out paging and demonstration.
But, because the display screen of distinct electronic apparatuses varies in size, and tend to change the setting of demonstration during people's reading electronic book, as adjust the font size size of the character of demonstration, change the degree of tilt of character, perhaps change the margin of text when display screen shows, page width etc., this all can cause the character quantity of each shown page of display screen to change.
Therefore, the display setting form that existing E-book reader sets in the time of all can reading according to people recomputates paging to the text of e-book, and calculates total page number, so that people's page turning.
Existing E-book reader normally calculates the shown total page number of e-book text in advance, and calculates the page number that the percent position of a certain data segment in whole e-book text estimated this data segment place.Jump page or leaf when a certain page number people, shown data are demonstration texts of the data segment correspondence that estimates by number percent.
Yet, the page number that estimates is often inconsistent with the real composing page number, content displayed is incorrect after causing people's page turning, it is discontinuous or repeating part is arranged or the problem of big section blank is arranged also can to cause people the e-book content finally to occur when continuous page turning forward, and when the text of the various codings of reading different language, occur mess code easily, influence people's reading.
Summary of the invention
The page number showed the text display method of accurate E-book reader when fundamental purpose of the present invention provided a kind of page turning.
Another object of the present invention provides a kind of textual display device that is convenient for people to the E-book reader of accurate page turning and easy-to-read e-book.
In order to realize above-mentioned fundamental purpose, E-book reader text display method provided by the invention comprises the data of the character duration of each character under different font sizes in the record vector font library, and the display setting information of recording text, the data of text are divided into data segment more than one section, according to display setting information each data segment is carried out pre-typesetting, determine in the start-stop position of each page demonstration text correspondence in text that display screen shows, search the start-stop position of data in text of the demonstration text correspondence of this page number according to the page number of the required demonstration that receives, coded data is read and converted to data between the start-stop position, from vector font library, search corresponding character picture according to coded data, according to display setting information character picture is presented on the display screen.
By such scheme as seen, E-book reader is earlier to the data segmentation of text, and each segment data section is carried out pre-typesetting, thereby obtains each page demonstration text of showing at display screen in the start-stop position of e-book text.Show that when certain one page showed text, the page number that can show as required found the data in the corresponding text quickly and accurately, and the data-switching in the text is become coded data, and search the character picture demonstration.Because all data in the text are all passed through accurate paging and are set type, and can not occur the discontinuous phenomenon of mess code or content during people's page turning.
A preferred scheme is, the step of each segment data section being carried out pre-typesetting is: determine that according to display setting information the shown one page of display screen shows the line number of text, and calculate length that each row shows text, the data-switching of current data section is become coded data, obtain the character duration data of the corresponding character of each coded data, the character duration of character successively adds up, show text size greater than delegation or complete delegation set during for newline in the character that reads at the character duration that adds up, be expert to count to reach when one page shows the text line number and set complete one page, and record the start-stop position of each page.
This shows, calculate by the line number to each page, and the shown character of each row is calculated, can accurately calculate the quantity of the shown character of each page, and can accurately calculate in the start-stop position of each page demonstration text correspondence in the e-book text shown on the display screen.
Further scheme is, in the pre-typesetting step, when the not enough one page of current data section remaining data shows the data volume of text, the remaining data of current data section is incorporated into next data segment.
Like this, the remaining data of guaranteeing the not enough one page of each section can not be left in the basket or independently be arranged into one page, guarantees the accuracy that the page number is calculated.
Further scheme is, behind the display setting information change, according to the display setting information after the change each data segment is carried out pre-typesetting again, and records again the start-stop position of each page demonstration text correspondence in text behind the pre-typesetting.
As seen, for the change of display setting information each time, all the pre-typesetting that the e-book text is carried out is again handled, and guarantees behind the display setting information change that demonstration text and the page number shown on display screen are correct, avoids occurring the discontinuous problem of mess code or content.
For realizing another above-mentioned purpose, the textual display device of E-book reader provided by the invention comprises the character duration logging modle, the pre-typesetting module, pre-typesetting information is preserved module and display module, the character duration logging modle is used for the data of the character duration of record each character of vector font library under different font sizes, the pre-typesetting module is used for the display setting information of recording text, and the data of text are divided into data segment more than one section, according to display setting information each data segment is carried out pre-typesetting, determine in the start-stop position of each page demonstration text correspondence in text that display screen shows, pre-typesetting information is preserved module and is used for preserving pre-typesetting information to the local storage of E-book reader, display module is used for searching the data of demonstration text correspondence of this page number in the start-stop position of text according to the page number of the required demonstration that receives, coded data is read and converted to data between the start-stop position, from vector font library, search corresponding character picture according to coded data, according to display setting information character picture is presented on the display screen.
By such scheme as seen, E-book reader at first carries out pre-typesetting to text, determine the start-stop position of each page demonstration text correspondence in the e-book text that display screen is shown, during people's page turning, the page number that E-book reader only needs to show as required finds out corresponding text data and converts corresponding character to, shows that corresponding character picture gets final product.
Description of drawings
Fig. 1 is the structured flowchart of the textual display device embodiment of E-book reader of the present invention.
Fig. 2 is the process flow diagram of the text display method embodiment of E-book reader of the present invention.
Fig. 3 is the process flow diagram of record character duration among the text display method embodiment of E-book reader of the present invention.
Fig. 4 is to the process flow diagram of text pre-typesetting among the text display method embodiment of E-book reader of the present invention.
Fig. 5 calculates the process flow diagram that delegation shows the number of characters that text is shown among the text display method embodiment of E-book reader of the present invention.
Fig. 6 is the process flow diagram that the text display method embodiment Chinese version of E-book reader of the present invention shows.
The invention will be further described below in conjunction with drawings and Examples.
Embodiment
E-book reader text display method of the present invention is applied in such as mobile phone, panel computer, e-book reading device etc. to have on the electronic equipment of e-book reading function, and these electronic equipments are provided with the E-book reader textual display device and become on the form that people can read and the display screen that is presented at E-book reader with the text-converted with e-book.
Referring to Fig. 1, E-book reader textual display device of the present invention has character duration logging modle 11, pre-typesetting module 12, pre-typesetting information preservation module 15 and display module 16, wherein is provided with in the pre-typesetting module 12 to show text computing module 13 and show text pre-typesetting module 14.
Character duration logging modle 11 is used for obtaining from vector font library the character duration data of each character under the specific font size.Vector font library is the character library of store character in the electronic equipment, it stores image, the data such as character duration under different font sizes of each character, and each character encoded, electronic equipment can be searched data such as the image, character duration of each character from vector font library.
Pre-typesetting module 12 is used for the text of e-book is carried out the pre-typesetting processing, the composing that the data of all texts of e-book are simulated just, determine under certain display setting information, what kind of typesetting format will be e-book will be presented on the display screen of E-book reader with, determine to be presented at the start-stop position of each page of demonstration text on the display screen of E-book reader thus, and each page shows the start-stop position of text correspondence in the text of e-book.Demonstration text as referred to herein refers to the text that shows at display screen, be the literal that directly can read of people, symbol etc., and the text of e-book refers to that E-book reader can the recognition data text, and normally various program codes can not be by people's direct reading.
The display setting information that the demonstration text computing module 13 of pre-typesetting module 12 is used for according to people's setting, as page width, margin, font size size, line-spacing etc., calculate and show the shown total line number of each page of text, show that text pre-typesetting module 14 is used for calculating the shown character number of each row, and the definite start-stop position of data in the text of e-book that shows the text of each page of text correspondence, thereby form pre-typesetting information.
Pre-typesetting information is preserved the local storage that module 15 is used for the pre-typesetting information that pre-typesetting module 12 forms is saved to E-book reader.Usually, each pre-typesetting information all is based on certain display setting information generation, for example based on specific font size, specific page size etc., if people change the font size size of character or change display setting information such as page size, may cause that all the shown character of each page changes, thereby need to set type again.Therefore, pre-typesetting module 12 need generate different pre-typesetting information at different display setting information, and pre-typesetting information is preserved the module 15 pre-typesetting information that each display setting information and its is corresponding and is saved in the storer relatedly.
Display module 16 receives outside information, as show the instruction of the demonstration text of a certain page number, and find out according to the information that receives whether corresponding pre-typesetting information is being arranged from the local storage of E-book reader under specific display setting information, if any corresponding pre-typesetting information, find out the data of the corresponding text of this page number, and the data of text are encoded, from vector font library, obtain the character picture of respective symbols then, the character picture that obtains in turn is presented on the display screen.Certainly, according to display setting information, can will be presented on the corresponding position of display screen such as information such as the current page number, total page numbers.
The flow process of the display packing work of E-book reader text is described below in conjunction with Fig. 2 to Fig. 6.Referring to Fig. 2, E-book reader is execution in step S1 at first, read the data of the text of e-book, be the readable data of read machine, execution in step S2 then, obtain the display setting information that the E-book reader user sets, as font size of the page size as shown in the display screen, margin, line-spacing, each character etc.Simultaneously, the character duration logging modle 11 of E-book reader need read in the character duration of each character under the font size of setting from vector font library.
Referring to Fig. 3, during the record character duration, at first be written into the data of vector font library, i.e. execution in step S11.In the present embodiment, use ten thousand country codes (UNICODE) that character is encoded, store the data of the character duration of each ten thousand state's code character under different font sizes in the vector font library.After being written into the data of vector font library, according to user's setting the font size of required inquiry is set, No. 14 fonts for example, and read first character, i.e. execution in step S12.
Then, execution in step S13 reads the data of the character duration of current character, and the data of character duration are written in the character duration file, i.e. execution in step S14.Then, execution in step S15, the character duration that judges whether characters all in the vector font library all reads and finishes, as does not have, and then execution in step S16 reads character late, and returns execution in step S13.All read as the data of the character duration of all characters in the vector font library and to have finished, execution in step S17 then, the character duration data of preserving all characters under the current font size.
After step S2 is finished among Fig. 2, execution in step S3, whether the storer of judging E-book reader stores the pre-typesetting information under this display setting information, if any, execution in step S4 then, otherwise, execution in step S5, text to e-book carries out pre-typesetting, and pre-typesetting is carried out by pre-typesetting module 12.
Referring to Fig. 4, when the text of e-book is carried out pre-typesetting, execution in step S21 at first, the reading displayed set information comprises the data read with the character duration under the font size of current setting, and the text of e-book is divided into the multiple segment data section.For example, be that the length of 4Kb is divided text with each section, for the part of the not enough 4Kb of residue, also as independently one section.Certainly, if the length of text is then handled whole text less than 4Kb as the one piece of data section.
Then, each segment data section is carried out pre-typesetting, be about to the data coding of one piece of data section and convert ten thousand country codes, i.e. execution in step S22 to.Then, execution in step S23, calculating is under the display setting information of setting, the line number that one page can show in the shown demonstration text of display screen, this can obtain according to the pagewidth that show to arrange, page height, page back gauge and the line-spacing of each line data, the high computational of character up and down, and for example calculating and obtaining the demonstration text that each page can show is that N is capable.
Then, execution in step S24 calculates the character number that each row can show, idiographic flow as shown in Figure 5.At first, execution in step S41 reads the data after the one piece of data section converts ten thousand country codes to, and execution in step S42 calculates the character length W that shows that each row can show in the text then.For example, the pagewidth of each page is 600 pixels in the display setting information, and the left and right margins of each page are respectively 20 pixels, show that then the character length W that each row can show in the text is 560 pixels.
Then, execution in step S43, read current character, and execution in step S44, judge whether current character is newline, if execution in step S46 then, otherwise execution in step S48, from the character duration file, search the character duration data of current character, and with this row in other the character duration data of character add up.Among the step S48, show text at each row, a length numerical value X can be set, length number value X is set to 0 when each row beginning, after whenever reading the character duration data of a character, with the character duration data that read and the length numerical value X addition of this row, obtain reading the character length numerical value X of this row after the current character.
Behind the character duration data accumulation with current character, judge that whether the length numerical value X of current line is greater than the character length W that shows text delegation, in this way, execution in step S45 then, otherwise, represent this row more character of can also setting type down, then execution in step S50 points to character late, and execution in step S51, judge whether to arrive the end of ten thousand state's code datas, if do not arrive, then return execution in step S43, if arrive, execution in step S52 then judges that current data can not set type into complete delegation, represents the last remaining low volume data of this segment data section complete delegation that can not set type.
Among the step S49, if the length numerical value X of this row is greater than the character length W of delegation after calculating character duration with current character and adding up, represent that then this row sets type into complete delegation, execution in step S45, the previous character of pointed, and calculate the character number of this row, execution in step S46 then, the position of pointed current character, last execution in step S47 judges that current data can be arranged in complete delegation.
Among the step S44, be newline if judge current character, then directly execution in step S46, S47 judge that current data can set type into complete delegation.
Behind the step S24 of execution graph 4, E-book reader execution in step S25, judge according to the flow process of Fig. 5 whether character can set type into complete delegation, as setting type into complete delegation, execution in step S26 then, line number increases delegation, and execution in step S27, judge line number that the current page number adds up whether arrive one page show text total line number N that can show, in this way, then number of pages increases one page, and recording the shown start-stop position of demonstration text correspondence in the e-book text of this page number, i.e. execution in step S28 begins to calculate the reference position of next page number simultaneously, to the line number zero clearing, namely return execution in step S24.
Among the step S27, do not arrive the shown total line number N of demonstration text one page if judge the line number that adds up, then return execution in step S24.
Among the step S25, set type into the data of complete delegation if judge one piece of data Duan Zhongwei, the data of not setting type into complete one page are perhaps arranged, the data of then will not set type into one page merge in next data segment, be execution in step S29, execution in step S30 then judges whether to arrive the end of e-book text, in this way, execution in step S31, record is also preserved pre-typesetting information, otherwise returns execution in step S22, read down the one piece of data section, finish until the equal pre-typesetting of all data segments.
After pre-typesetting finishes, all data segments of e-book text all pass through pre-typesetting, namely under the display setting information of setting, each shown page of display screen shows that the text correspondence all is recorded in the start-stop position of e-book text, and is stored in the storer of E-book reader this locality by pre-typesetting information preservation module 15.At this moment, be finished step S6 among Fig. 2.
After e-book text pre-typesetting finished, execution in step S5 showed the corresponding text that shows according to pre-typesetting information at display screen, and idiographic flow as shown in Figure 6.At first, receive the page number of the required demonstration of user's setting, as show the 5th page, be execution in step S61, execution in step S62 then, judge whether this page number is effective, judge that namely whether the page number is the natural number more than 1, and whether less than total page number, as effectively, execution in step S63, the demonstration text that obtains this page number is the start-stop position in the corresponding data in the text of e-book, and with the data read between the start-stop position, the data that read is encoded, obtain corresponding ten thousand state's code datas, i.e. execution in step S64.
Then, from vector font library, find out the character picture of each character in corresponding ten thousand state's code datas, and according to the order of ten thousand state's code datas character picture is sequentially played up, set type, be i.e. execution in step S65.At last, the image after playing up is presented on the display screen, i.e. execution in step S66.Certainly, according to display setting information, the current page number, total page number etc. can be presented on the display screen in the lump.
In step S3, storage pre-typesetting information is arranged in the storer of judgement E-book reader, then directly call this pre-typesetting information, and execution in step S5.Behind the execution in step S5, E-book reader is judged the display setting information change, as font size change, line-spacing change, page size change etc., if any, then return step S3, judge whether storer stores the pre-typesetting information under the corresponding display setting information.
Because carrying out pre-typesetting to the e-book text, handles E-book reader, namely carry out pre-typesetting at the text to e-book under the different display setting information, can accurately calculate the shown start-stop position of data in the e-book text of each page demonstration text under different display setting information, and accurately read the data between the start-stop position, these data-switching are become ten thousand country codes and demonstration.As seen, the user can't change the start-stop position of each page correspondence in the pre-typesetting information when page turning, just can not cause also showing that content of text is discontinuous or the phenomenon of mess code occur, guarantees user's reading smoothness.
All are the situation descriptions that show that text shows from left to right continuously in above-described embodiment, the situation of laterally setting type namely is installed to be described, if show that text is that from top to down shows continuously, i.e. vertical composing, the character duration of character refers to the height of each character in the vector font library that then reads, and refers to the columns that calculates from left to right and calculate the shown line number of each page of display screen.
Certainly, the above embodiments only are preferred implementation of the present invention, during practical application, more change can also be arranged, and for example, the coding of the data of e-book text are not to use ten thousand country codes, but other codings; Perhaps, read the e-book text before, the coded system of e-book text is detected etc., such change also can realize purpose of the present invention.
It is emphasized that at last to the invention is not restricted to above-mentioned embodiment that the variations such as change of the change of each data segment, length, display setting information also should be included in the protection domain of claim of the present invention during as the data segmentation.
Claims (10)
1. the text display method of E-book reader is characterized in that: comprise
The data of the character duration of each character under different font sizes in the record vector font library;
The display setting information of recording text, and the data of text are divided into data segment more than one section, according to described display setting information each described data segment is carried out pre-typesetting, determine in the start-stop position of each page demonstration text correspondence in described text that display screen shows;
Search the start-stop position of data in described text of the demonstration text correspondence of this page number according to the page number of the required demonstration that receives, coded data is read and converted to data between the described start-stop position, from described vector font library, search corresponding character picture according to described coded data, according to described display setting information described character picture is presented on the described display screen.
2. the text display method of E-book reader according to claim 1 is characterized in that:
The step of the described data segment of each section being carried out pre-typesetting is: determine that according to display setting information the shown one page of described display screen shows the line number of text, and calculate the length of the described demonstration text of each row; The data-switching of current data section is become described coded data, obtain the described character duration data of the corresponding character of each described coded data, the character duration of described character successively adds up, set complete delegation during for newline greater than the described demonstration text size of delegation or the character that reads at the described character duration that adds up, be expert to count to when reaching the described demonstration text of one page line number and set complete one page, and record the start-stop position of each page.
3. the text display method of E-book reader according to claim 2 is characterized in that:
In the described pre-typesetting step, when the not enough one page of current data section remaining data shows the data volume of text, the remaining data of current data section are incorporated into next data segment.
4. according to the text display method of each described E-book reader of claim 1 to 3, it is characterized in that:
Behind described display setting information change, according to the display setting information after the change each described data segment is carried out pre-typesetting again, and record again the start-stop position of each page demonstration text correspondence in described text behind the pre-typesetting.
5. according to the text display method of each described E-book reader of claim 1 to 3, it is characterized in that:
Behind the described data segment pre-typesetting of each section, each page shown the information of the start-stop position of correspondence in described text of text stores in the storer.
6. the text display method of E-book reader according to claim 4 is characterized in that:
Record again the start stop bit postpone of each page demonstration text correspondence in described text behind the pre-typesetting, the information that each page behind the pre-typesetting is again shown the start-stop position of text correspondence in described text with change after display setting information store in the storer relatedly.
7. the textual display device of E-book reader is characterized in that: comprise
The character duration logging modle, the data of the character duration of each character under different font sizes in the record vector font library;
The pre-typesetting module, the display setting information of recording text, and the data of text are divided into data segment more than one section, according to described display setting information each described data segment is carried out pre-typesetting, determine in the start-stop position of each page demonstration text correspondence in described text that display screen shows;
Display module, search the start-stop position of data in described text of the demonstration text correspondence of this page number according to the page number of the required demonstration that receives, coded data is read and converted to data between the described start-stop position, from described vector font library, search corresponding character picture according to described coded data, according to described display setting information described character picture is presented on the described display screen.
8. the textual display device of E-book reader according to claim 7 is characterized in that:
Described pre-typesetting module is provided with
Show the text computing module, determine that according to display setting information the shown one page of described display screen shows the line number of text, and calculate the length of the described demonstration text of each row;
Show text pre-typesetting module, the data-switching of current data section is become described coded data, obtain the described character duration data of the corresponding character of each described coded data, the character duration of described character successively adds up, set complete delegation during for newline greater than the described demonstration text size of delegation or the character that reads at the described character duration that adds up, be expert to count to when reaching the described demonstration text of one page line number and set complete one page, and record the start-stop position of each page.
9. according to the textual display device of claim 7 or 8 described E-book readers, it is characterized in that:
Also comprise pre-typesetting information preservation module, each page behind the pre-typesetting shown the information of the start-stop position of correspondence in described text of text stores in the storer.
10. the textual display device of E-book reader according to claim 9 is characterized in that:
Described pre-typesetting information is preserved the information of the start-stop position of correspondence in described text of each page demonstration text behind module stores comprises a plurality of display setting information and each described display setting information correspondence to the information in the storer the pre-typesetting.
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| CN107741839A (en) * | 2016-10-13 | 2018-02-27 | 腾讯科技（深圳）有限公司 | A kind of text display method and device based on text file reader |
| CN112100176A (en) * | 2020-09-03 | 2020-12-18 | 北京得到信息科技有限公司 | Electronic book reading progress calculation method and system |
| CN112882678A (en) * | 2021-03-15 | 2021-06-01 | 百度在线网络技术（北京）有限公司 | Image-text processing method, display method, device, equipment and storage medium |
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| CN112100176B (en) * | 2020-09-03 | 2024-01-19 | 北京得到信息科技有限公司 | E-book reading progress calculation method and system |
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