JP3863416B2 - Drawing apparatus and control method thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a drawing device such as a printer device or a display device, and more particularly to a drawing device that performs drawing processing of a character string that is underlined and a control method thereof .
[0002]
[Prior art]
In various printer apparatuses, it is generally possible to print an underline below a character string. At the time of printing the underline, conventionally, there is a different underline font for each font type of the character, and the font enlarged / reduced according to the size of the character is used. Further, when connecting the underline between adjacent characters, control for simply connecting the adjacent character is performed.
[0003]
By the way, in recent years, many kinds of editing software have been provided to users, and the user can freely set the character type (font type), character size, character modification, etc. by using these editing software, and freely Documents can be created in various formats. In particular, it is frequently performed to change the font type or change the character size in the same line. In addition, it is common to create a document in which Japanese characters and English characters are mixed in the same line.
[0004]
[Problems to be solved by the invention]
In conventional underline printing, underline connection is possible between the same font type, but when the font type is switched within the same line, or when the size of the character is changed, the underline between adjacent characters is displayed. There is a gap, or the underline position varies from character to character, making it impossible to connect the underline. Therefore, the underline is cut or shifted up and down, and there is a problem that a print result desired by the user cannot be obtained.
[0005]
The present invention has been made in view of such circumstances, and provides a drawing apparatus that can guarantee underline connection and obtain a drawing result desired by a user regardless of font type and character size. With the goal.
[0006]
Another object of the present invention is to provide a drawing apparatus that can perform underline drawing corresponding to an arbitrary font type.
[0007]
It is still another object of the present invention to provide a drawing apparatus that can perform underlined character drawing with good appearance when Japanese characters and English characters to be underlined are mixed.
[0008]
[Means for Solving the Problems]
The drawing apparatus according to claim 1 has information on a plurality of types of fonts, and draws a character string by underlining a predetermined position in a direction perpendicular to the direction of the character string . First storage means for storing information on a predetermined position of an underline for each font type set so that the underline of each character of the character string is continuous , and the font information and the predetermined value for each font type Second storage means for storing correction data for calculating the print position of the underlined character according to the relationship with the position, and correction data corresponding to a plurality of types of fonts forming the character string Is read out from the second storage means, the drawing position of the character string in the vertical direction is calculated based on the correction data, the character string is drawn at the calculated position, and the first storage means Stored information Zui characterized in that it comprises means for drawing an underline in the predetermined position, the by.
[0009]
In the drawing device according to claim 1, the drawing position of the underlined character string is calculated based on the information on the underline and the correction data for each font type according to the information on the phantom, and the position A character string is drawn on the line and an underline is drawn at a predetermined position. Since the drawing position of the character string is calculated based on different correction data for each font type, the underline is continuously drawn at the optimum position even when different font types exist in the same line.
[0010]
The drawing apparatus according to claim 2 is configured to determine whether or not the correction data relating to the font type of the character string to be drawn is stored in the second storage unit, and to perform the drawing when the correction data is not stored. The apparatus further comprises means for obtaining the correction data relating to the font type of the character string, and means for storing the obtained correction data in the second storage means.
[0011]
In the drawing apparatus according to the second aspect, when a font type for which correction data is not required is captured, correction data relating to the new font type is obtained. Therefore, it is possible to support underline drawing for an arbitrary font type.
[0012]
The drawing apparatus according to claim 3, wherein the means for obtaining the correction data obtains the length of a portion protruding downward from the predetermined position for each character information of the font type not stored, and obtains all the obtained characters An average value of lengths is calculated, and a process of calculating the average value as correction data is performed .
[0013]
In the drawing apparatus according to the third aspect, the correction data for calculating the optimum printing position is calculated by the above processing.
[0014]
The drawing apparatus according to claim 4 is characterized in that the correction data is different between Japanese characters and English characters of the same font type .
[0015]
In the drawing device according to the fourth aspect, even if the font type is the same, the correction data is different for Japanese characters and English characters. Therefore, an optimal underline can be drawn for each of Japanese characters and English characters.
[0016]
The drawing apparatus according to claim 5 further includes means for adjusting the drawing position of the Japanese character and the English character by using different drawing position adjustment values for the Japanese character and the English character .
[0017]
In the drawing apparatus according to the fifth aspect , each drawing position is adjusted by using different drawing position adjustment values for Japanese characters and English characters. Therefore, when Japanese characters and English characters that are underlined are mixed, a drawing result with good appearance can be obtained.
[0018]
The drawing apparatus control method according to claim 6 includes information on a plurality of types of fonts, and draws a character string by underlining a predetermined position in a direction perpendicular to the direction of the character string. In the control method, a first storage step for storing in the first storage means information on a predetermined position of the underline for each font type set so that the underline of each character of the character string of one line is continuous , and each font Second storage that stores correction data for calculating the print position of the underlined character in the second storage case, obtained for each type according to the relationship between the font information and the predetermined position. A process of reading correction data corresponding to a plurality of types of fonts of characters constituting a character string and a character string from the second storage unit, and calculating a drawing position of the character string in the vertical direction based on the correction data; , Put the string at the calculated position With demarcating, characterized in that it comprises a step for drawing an underline on the basis of the information stored in the first storing means to the predetermined position.
[0019]
In the control method of the drawing apparatus according to claim 6, the drawing position of the underlined character string is calculated based on the information on the underline and the correction data for each font type according to the information on the phantom, A character string is drawn at that position, and an underline is drawn at a predetermined position. Since the drawing position of the character string is calculated based on different correction data for each font type, the underline is continuously drawn at the optimum position even when different font types exist in the same line.
[0022]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings showing embodiments thereof. In the following, the drawing apparatus of the present invention will be described in detail by taking a printer apparatus that prints an underlined character string as an example. FIG. 1 is a block diagram showing the configuration of the printer apparatus of the present invention.
[0023]
The printer device 20 of the present invention includes a main control unit 1, a data receiving unit 2, a data analyzing unit 3, a character data developing unit 4, an underline developing unit 5, an image / graph developing unit 6, a printing unit 7, an operation unit 8, a display. Unit 9, ROM 10, RAM 11, storage unit 12, startup processing unit 13 and the like.
[0024]
The main control unit 1 is specifically composed of a CPU, and is connected to the hardware units as described above of the printer device 20 via the bus 14. The main control unit 1 controls them and is stored in the ROM 10. Various software functions are executed according to the computer program.
[0025]
The data receiving unit 2 receives print data from the host device 30, and the print data is sent to the data analysis unit 3. The data analysis unit 3 analyzes whether the received print data is character data or image / graph data. If the print data is character data, the print data is sent to the character data development unit 4, and the data If there is an underline instruction in the character data, the print data is further sent to the underline development unit 5. On the other hand, if it is image / graph data, the print data is sent to the image / graph development unit 6. Each character data development unit 4, underline development unit 5, and image / graph development unit 6 execute a predetermined development process and send the processing result to the printing unit 7. The printing unit 7 executes a printing process based on the input expansion process result and outputs the print result. The underline development process that is a characteristic part of the present invention will be described in detail later.
[0026]
The operation unit 8 receives an instruction input from the user from the outside. The display unit 9 displays the operation state of the printer device 20, print data, and the like. The ROM 10 stores various software programs necessary for the operation of the printer device 20 in advance. The RAM 11 is configured by SRAM, flash memory, or the like, and stores temporary data generated when software is executed.
[0027]
The storage unit 12 includes a correction data table 12a and a print information table 12b. The correction data table 12a stores correction data for calculating the optimum print position of the underlined character for each font type and for each Japanese character / English character. The correction data differs for each font type, and even for the same font type, Japanese characters and English characters are different. The print information table 12b stores underline information and print position adjustment values that differ between Japanese characters and English characters. The details of the correction data, the information regarding the underline, and the adjustment value of the print position will be described later.
[0028]
When a new font type is captured, the startup processing unit 13 obtains correction data for the font type. The procedure for obtaining the correction data will be described in detail later. Then, the startup processing unit 13 stores the obtained new correction data in the correction data table 12a.
[0029]
Here, the details of the correction data will be described. FIG. 2 is a diagram illustrating a print example of Japanese characters and English characters in a True Type font. As a feature of this True Type font, a character baseline (bold line in FIG. 2) is a character development origin, and is set slightly above the lower end of the character as shown in FIG. In raster fonts, the baseline and the bottom of the character are at the same position, so it is not a problem to expand the underline to match the baseline. However, in the case of True Type fonts, if an underline is drawn to match the baseline, the underline will be printed over the character.
[0030]
Therefore, in order to avoid such a situation when the underline print position is adjusted to a predetermined baseline, it is necessary to move the print position of the underlined character upward. Therefore, in the present invention, correction data calculated as follows is stored in advance.
[0031]
First, for each Japanese character of a certain font type (for example, Mincho), the length (number of dots) protruding downward from the baseline (distance A1 in the case of “Kan” in the example of FIG. 2) is captured. Since this length (number of dots) differs in each Japanese character, these lengths (number of dots) in all Japanese characters are acquired, and an average value thereof is calculated. Such a process is performed for a plurality of types of sizes (a plurality of points) to obtain a plurality of average values. A regression line is calculated based on the plurality of average values acquired. This regression line is correction data for Japanese characters of a certain font type (for example, Mincho). Similar processing is performed for the English character of the font type (for example, Mincho), and correction data (regression line) for the English character of the font type (for example, Mincho) is calculated.
[0032]
By performing the same processing for other font types (such as Gothic fonts), it is possible to calculate a plurality of correction data (regression lines) that differ for each font type and that differ between Japanese characters / English characters. A plurality of correction data (regression lines) calculated in this way are stored in advance in the correction data table 12a.
[0033]
By holding such a regression line, it is possible to calculate an optimum correction value (correction dot number) of the character printing position at an arbitrary size from the regression line. For example, when a regression line is calculated using an average value (4 dots) or the like when the size is 9 points, the optimum correction value (number of corrected dots) for a character having a size of 12 points from the regression line Can be calculated.
[0034]
Using such correction data (regression line), the underlined character string and the underline are printed as follows. The correction value (correction dot number) in Japanese characters and English characters is calculated using each regression line, and the coordinate value corrected by this correction value with respect to the specified coordinate value (☆ in FIG. 2) Each character is printed as a value, and an underline is printed at a designated coordinate value (☆ in FIG. 2). When printing an underlined character string between different font types, shift it by the correction value calculated by the regression line of each font type with respect to the specified coordinate value (☆ in Fig. 2). Since the characters of each font type are expanded, the designated coordinate value (☆ in FIG. 2) becomes the underline print position even between different font types, and the underline connection can be guaranteed.
[0035]
Next, the contents stored in the print information table 12b will be described. The information on the underline is information indicating a predetermined position for printing the underline, the type of the underline (straight line, broken line, wavy line, etc.), the number of dots necessary for each type, and the like. The information related to the underline is fixed information, and is the same information for each font type and Japanese character / English character.
[0036]
In the case of a character string in which Japanese characters and English characters are mixed in one line, when the underlined character string is printed simply using the correction data (regression line) for the Japanese characters and English characters, As shown in FIG. 2, since the protruding length from the base line is generally shorter than that of the Japanese character in English characters, when the designated coordinate value (☆ in FIG. 2) on the base line is printed as the development origin, FIG. As shown in a), the arrangement of characters becomes uneven on the upper side, and the appearance looks worse.
[0037]
To solve the problem such as this, using the following manner calculated sum characters, different adjustment values with a letter (number adjustment dot) performs fine adjustment of text printing position, FIG. 3 ( As shown in b), there is no unevenness of characters and the appearance of the printed result is improved. An average value of adjustment values (adjustment dot numbers) of Japanese characters in a plurality of font types is calculated, and the value is set as an adjustment value (adjustment dot number) of Japanese characters. Similarly, an average value of English character adjustment values (adjustment dot numbers) in a plurality of font types is calculated, and the value is used as an English character adjustment value (adjustment dot number). Such Japanese character adjustment values (adjustment dot numbers) and English character adjustment values (adjustment dot numbers) are stored in the print information table 12b.
[0038]
Next, the operation will be described. FIG. 4 is a flowchart showing an operation procedure of processing of the printer apparatus 20.
[0039]
First, a command is input from the host device 30 (step S1). Based on this command, the main control unit 1 determines whether a new font type is taken in (step S2). When a new font type is captured (S2: YES), the main control unit 1 activates the start-up processing unit 13 to perform calculation and storage processing of correction data (regression line) regarding the new font type ( Step S3). Details of this correction data (regression line) calculation / storage process will be described later with reference to a flowchart. When a new font type is not captured (S2: NO), that is, when correction data (regression line) for one or more font types to be captured is already stored in the correction data table 12a, this calculation / storage process Is not done.
[0040]
Then, print data is received from the host device 30 via the data receiving unit 2 (step S4). The received print data is analyzed by the data analysis unit 3 (step S5). The main control unit 1 determines whether or not the analyzed print data is character data (step S6). If it is not character data (S6: NO), that is, if it is image / graph data, the print data is sent to the image / graph development unit 6 to execute development processing (step S7).
[0041]
If it is character data (S6: YES), the print data is sent to the character data expansion unit 4 to execute expansion processing (step S8). After the expansion process is completed (step S9: YES), the main control unit 1 determines whether or not the received print data (character data) is designated for underline printing (step S10). If underline printing is designated (S10: YES), the developed character data is sent to the underline development unit 5 to execute underline development processing (step S11). Details of the underline development processing will be described later using a flowchart. When underline printing is not designated (S10: NO), this underline development process is not performed.
[0042]
The data developed in this way is sent to the printing unit 7 from any one of the character data developing unit 4, the underline developing unit 5 or the image / graph developing unit 6, and a printing process based on the developed data is executed (step). S12).
[0043]
Then, the main control unit 1 determines whether or not the processing for all received print data has been completed (step S13). If the processing has not been completed (S13: NO), the operation processing from S5 is repeated. .
[0044]
Next, details of the underline development processing will be described. FIG. 5 is a flowchart showing the operation procedure of the underline development process, that is, the subroutine of step S11 in FIG.
[0045]
Correction data (regression line) for each font type and Japanese / English character in one underlined character is read from the correction data table 12a, and a correction value (correction) according to the size of the character based on the read regression line The number of dots is calculated (step S21). It is determined whether or not the process of S21 is completed for all characters designated to be underlined (step S22). If not completed (S22: NO), the process of S21 is repeated for the remaining characters.
[0046]
When the correction value calculation processing for all characters is completed (S22: YES), an average value of the calculated correction values is calculated (step S23). The calculated average correction value is added to the designated print coordinates, and the added value is obtained as a developed coordinate (step S24). From the obtained development coordinates, the adjustment development coordinates for Japanese characters and the adjustment development coordinates for English characters are obtained by considering the adjustment values for Japanese characters and the adjustment values for English characters stored in the print information table 12b, respectively. (Step S25). Then, the obtained adjusted development coordinates for Japanese characters and adjusted development coordinates for English characters are sent to the printing unit 7 together with information on the underline read from the print information table 12b (step S26).
[0047]
Next, details of the correction data (regression line) calculation / storage process will be described. FIG. 6 is a flowchart showing the operation procedure of the correction data (regression line) calculation / storage process, that is, the subroutine of step S3 in FIG.
[0048]
For a font type that is newly imported and whose correction data is not stored in the correction data table 12a, the length of the portion that protrudes downward from the baseline for a certain Japanese character from the information on the Japanese character of that font type. The size (number of dots) is obtained (step S31). It is determined whether or not the processing of S31 has been completed for all Japanese characters of the font type (step S32). If not completed (S32: NO), the process of S31 is repeated for the remaining Japanese characters. When the processing for all Japanese characters of that size is completed (S32: YES), the average value of the lengths (number of dots) for all the calculated Japanese characters is calculated (step S33).
[0049]
It is determined whether or not the above processing has been completed for a plurality of types of planned sizes (step S34). If the processing has not been completed (S34: NO), the remaining size of Japanese characters is S31. Repeat the process of ~ S33.
[0050]
Then, a regression line as correction data is calculated based on the acquired average values of a plurality of types of sizes (step S35). The calculated correction data (regression line) is stored in the correction data table 12a (step S36).
[0051]
It is determined whether or not the processing for the English characters in this font type has been completed (step S37). If the processing has not been completed (S37: NO), the processing of S31 to S36 is executed in exactly the same manner for the English characters. To do.
[0052]
It is determined whether or not there are other newly imported font types (step S38). If there are font types for which correction data (regression line) has not been registered (S38: YES), the remaining type is determined. The processes of S31 to S37 are repeated for the font type to be performed.
[0053]
As described above, correction data (regression line) can also be obtained and registered for newly imported font types. Such processing is performed for a font type for which it is determined that correction data (regression line) is not stored in the correction data table 12a when the printer device 20 is started up.
[0054]
In the above-described example, the regression line is stored as the correction data, and the correction value for the target character size is sequentially calculated from the regression line. However, depending on the size of each character, When the obtained correction value (average value of all characters) itself or a correction value corresponding to the size of each character calculated from the regression line once obtained is stored in the correction data table 12a as correction data. Even if it exists, this invention is applicable similarly.
[0055]
In the above-described example, the case of a printer device that prints an underlined character string has been described. However, the present invention can be similarly applied to a display device that displays an underlined character string. Is possible. That is, the display position of the character string is calculated based on the correction data obtained according to the font information of the display device, and the character string and the underline are displayed at the appropriate positions by displaying the character string at the calculated position. It can be displayed in relation. It is also possible to calculate correction data relating to a font type for which correction data for calculating an appropriate display position of a character string is not required.
[0056]
【The invention's effect】
As described above, the drawing apparatus of the present invention calculates the drawing position of the underlined character string based on the correction data corresponding to the font type and the character size, and draws the character string at that position. Since the underline is drawn at a predetermined position, it is possible to guarantee the continuity of the drawn underline even when different font types or characters of different sizes exist in the same line.
[0057]
In the drawing apparatus of the present invention, correction data is calculated and stored for a newly imported font type, and therefore any font type including a completely new font type to be developed in the future is stored. Underline drawing can be supported.
[0058]
In the drawing apparatus of the present invention, correction data is made different between Japanese characters and English characters even if the font type is the same, so that an optimal underline is drawn for each of the Japanese characters and English characters. be able to.
[0059]
Furthermore, in the drawing apparatus of the present invention, the drawing positions are adjusted using different drawing position adjustment values for Japanese characters and English characters, so that both underlined Japanese characters and English characters are mixed. In this case, it is possible to obtain a drawing result that has no irregularities on the upper side and has a good appearance.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a printer apparatus according to the present invention.
FIG. 2 is a diagram illustrating a print example of Japanese characters and English characters in a True Type font.
FIG. 3 is a diagram illustrating a print example of a character string in which Japanese characters and English characters are mixed.
FIG. 4 is a flowchart showing an operation procedure of processing of the printer apparatus of the present invention.
FIG. 5 is a flowchart showing an operation procedure of underline development processing;
FIG. 6 is a flowchart showing an operation procedure of correction data (regression line) calculation / storage processing;
[Explanation of symbols]
1 Main control unit 4 Character data development unit 5 Underline development unit 7 Printing unit 10 ROM
11 RAM
12 Storage Unit 12a Correction Data Table 12b Print Information Table 13 Startup Processing Unit 20 Printer Device 30 Host Device

Claims (6)

In a drawing apparatus that has information on multiple types of fonts and draws a character string by underlining a predetermined position in a direction perpendicular to the direction of the character string,
First storage means for storing information on a predetermined position of the underline for each font type set so that the underline of each character of the character string in one line is continuous ;
Second storage means for storing correction data for calculating the print position of the underlined character according to the relationship between the font information and the predetermined position for each font type;
Means for reading correction data corresponding to a plurality of fonts of characters constituting a character string from the second storage means, and calculating a drawing position of the character string in the vertical direction based on the correction data;
A drawing apparatus comprising: a means for drawing a character string at the calculated position, and a means for drawing an underline at the predetermined position based on information stored in the first storage means. Means for determining whether or not the correction data relating to the font type of the character string to be drawn is stored in the second storage means;
Means for obtaining the correction data relating to the font type of the character string to be drawn when not stored;
The drawing apparatus according to claim 1, further comprising means for storing the obtained correction data in the second storage means. The means for obtaining the correction data obtains the length of the portion protruding downward from the predetermined position for each character information of the font type that is not stored, and calculates the average length of all the obtained characters. The drawing apparatus according to claim 2, wherein a process of calculating the average value as correction data is performed. The drawing apparatus according to claim 1, wherein the correction data is different between Japanese characters and English characters of the same font type. The drawing apparatus according to claim 1, further comprising means for adjusting a drawing position of the Japanese character and the English character using different drawing position adjustment values for the Japanese character and the English character. . In a control method of a drawing apparatus that has information on a plurality of types of fonts and draws a character string by underlining a predetermined position in a direction perpendicular to the direction of the character string,
A first storing step of storing in the first storage means information on a predetermined position of the underline for each font type set so that the underline of each character of the character string of one line is continuous ;
For each font type, correction data for calculating the print position of the underlined character is obtained in accordance with the relationship between the font information and the predetermined position, and stored in the second storage means. 2 storage steps;
A step of reading correction data corresponding to a plurality of fonts of characters constituting a character string from the second storage means, and calculating a drawing position of the character string in the vertical direction based on the correction data;
And a step of drawing a character string at the calculated position and drawing an underline at the predetermined position based on information stored in the first storage means.

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