![]() | ![]() | ![]() | GtkSourceView Reference Manual |
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GtkSourcePrintJob — Printing a GtkSourceBuffer.
#include <gtksourceview/gtksourceprintjob.h> struct GtkSourcePrintJob; GtkSourcePrintJob* gtk_source_print_job_new (GnomePrintConfig *config); GtkSourcePrintJob* gtk_source_print_job_new_with_buffer (GnomePrintConfig *config, GtkSourceBuffer *buffer); void gtk_source_print_job_set_config (GtkSourcePrintJob *job, GnomePrintConfig *config); GnomePrintConfig* gtk_source_print_job_get_config (GtkSourcePrintJob *job); void gtk_source_print_job_set_buffer (GtkSourcePrintJob *job, GtkSourceBuffer *buffer); GtkSourceBuffer* gtk_source_print_job_get_buffer (GtkSourcePrintJob *job); void gtk_source_print_job_setup_from_view (GtkSourcePrintJob *job, GtkSourceView *view); void gtk_source_print_job_set_tabs_width (GtkSourcePrintJob *job, guint tabs_width); guint gtk_source_print_job_get_tabs_width (GtkSourcePrintJob *job); void gtk_source_print_job_set_wrap_mode (GtkSourcePrintJob *job, GtkWrapMode wrap); GtkWrapMode gtk_source_print_job_get_wrap_mode (GtkSourcePrintJob *job); void gtk_source_print_job_set_highlight (GtkSourcePrintJob *job, gboolean highlight); gboolean gtk_source_print_job_get_highlight (GtkSourcePrintJob *job); void gtk_source_print_job_set_font (GtkSourcePrintJob *job, const gchar *font_name); gchar* gtk_source_print_job_get_font (GtkSourcePrintJob *job); void gtk_source_print_job_set_numbers_font (GtkSourcePrintJob *job, const gchar *font_name); gchar* gtk_source_print_job_get_numbers_font (GtkSourcePrintJob *job); void gtk_source_print_job_set_print_numbers (GtkSourcePrintJob *job, guint interval); guint gtk_source_print_job_get_print_numbers (GtkSourcePrintJob *job); void gtk_source_print_job_set_text_margins (GtkSourcePrintJob *job, gdouble top, gdouble bottom, gdouble left, gdouble right); void gtk_source_print_job_get_text_margins (GtkSourcePrintJob *job, gdouble *top, gdouble *bottom, gdouble *left, gdouble *right); GnomePrintJob* gtk_source_print_job_print (GtkSourcePrintJob *job); GnomePrintJob* gtk_source_print_job_print_range (GtkSourcePrintJob *job, const GtkTextIter *start, const GtkTextIter *end); gboolean gtk_source_print_job_print_range_async (GtkSourcePrintJob *job, const GtkTextIter *start, const GtkTextIter *end); void gtk_source_print_job_cancel (GtkSourcePrintJob *job); GnomePrintJob* gtk_source_print_job_get_print_job (GtkSourcePrintJob *job); guint gtk_source_print_job_get_page (GtkSourcePrintJob *job); guint gtk_source_print_job_get_page_count (GtkSourcePrintJob *job); GnomePrintContext* gtk_source_print_job_get_print_context (GtkSourcePrintJob *job); void gtk_source_print_job_set_print_header (GtkSourcePrintJob *job, gboolean setting); gboolean gtk_source_print_job_get_print_header (GtkSourcePrintJob *job); void gtk_source_print_job_set_print_footer (GtkSourcePrintJob *job, gboolean setting); gboolean gtk_source_print_job_get_print_footer (GtkSourcePrintJob *job); void gtk_source_print_job_set_header_footer_font (GtkSourcePrintJob *job, const gchar *font_name); gchar* gtk_source_print_job_get_header_footer_font (GtkSourcePrintJob *job); void gtk_source_print_job_set_header_format (GtkSourcePrintJob *job, const gchar *left, const gchar *center, const gchar *right, gboolean separator); void gtk_source_print_job_set_footer_format (GtkSourcePrintJob *job, const gchar *left, const gchar *center, const gchar *right, gboolean separator);
GObject +----GtkSourcePrintJob
"buffer" GtkSourceBuffer : Read / Write "config" GnomePrintConfig : Read / Write "font" gchararray : Read / Write "header-footer-font" gchararray : Read / Write "highlight" gboolean : Read / Write "numbers-font" gchararray : Read / Write "print-footer" gboolean : Read / Write "print-header" gboolean : Read / Write "print-numbers" guint : Read / Write "tabs-width" guint : Read / Write "wrap-mode" GtkWrapMode : Read / Write
"begin-page" void user_function (GtkSourcePrintJob *sourceprintjob, gpointer user_data); "finished" void user_function (GtkSourcePrintJob *sourceprintjob, gpointer user_data);
The GtkSourcePrintJob object is used to print the contents of a GtkSourceBuffer. You can set various configuration options to customize the printed output, and the result is obtained as a GnomePrintJob object, which you can then preview with gnome_print_job_preview_new() or print directly with gnome_print_job_print().
Printing can be done synchronously and asynchronously. Asynchronous methods are provided so you can give the user feedback about what's going on when printing long documents (see the "begin_page" and "finished" signals).
The task of a GtkSourcePrintJob is to produce a GnomePrintJob. What this means is that once you get the resulting GnomePrintJob, you might reuse the GtkSourcePrintJob to produce another output (with different configuration options for example) or just unreference it and forget about it. The lifetime of the produced object is independent of that of the producer.
Before printing you should at least set the GtkSourceBuffer you want to print (using gtk_source_print_job_set_buffer()). Besides that, you might configure word wrapping, font, whether to print hightlighted text as seen in the GtkSourceView, line numbers, basic headers and footers.
GtkSourcePrintJob can print basic headers and footers in each page. You can specify strftime() like strings for text on the left, right and center of the top and bottom of the page. You can also make GtkSourcePrintJob draw a separator line between the text document and the header and footer. And you can specify a different font (from that used for the text document).
Customization beyond that is possible, but you have to do the printing manually. To do that, you need to connect to the "begin_page" signal of the job and allocate some space in the page using gtk_source_print_job_set_text_margins(). Whenever GtkSourcePrintJob is about to print a new text page, the signal will be emitted. You can then get the GnomePrintContext being used with gtk_source_print_job_get_print_context() and use Gnome Print functions directly. The space you allocate is inside the document margins defined in the specified GnomePrintConfig, but outside all print area used by GtkSourcePrintJob itself.
A quick bootstrap code sequence to get you started using GtkSourcePrintJob is given below:
static GnomePrintJob * print_source_buffer_from_view (GtkSourceView *view, const gchar *title) { GtkSourcePrintJob *job; GnomePrintJob *print_job; /* create the job using default print configuration */ job = gtk_source_print_job_new (NULL); /* quickly setup the buffer, font and wrapping */ gtk_source_print_job_setup_from_view (job, view); /* print line numbers every 5 lines, using default font */ gtk_source_print_job_set_print_numbers (job, 5); /* print a header with the title centered */ gtk_source_print_job_set_header_footer_font (job, "Sans Regular 12.0"); gtk_source_print_job_set_header_format (job, NULL, title, NULL, TRUE); gtk_source_print_job_set_print_header (job, TRUE); /* print the page number in the page bottom */ gtk_source_print_job_set_footer_format (job, NULL, NULL, "Page N of Q", TRUE); gtk_source_print_job_set_print_footer (job, TRUE); /* print the whole buffer and return the result */ print_job = gtk_source_print_job_print (job); /* job is no longer needed */ g_object_unref (job); return print_job; }
GtkSourcePrintJob* gtk_source_print_job_new (GnomePrintConfig *config);
Creates a new print job object, initially setting the print configuration.
config : | an optional GnomePrintConfig object. |
Returns : | the new print job object. |
GtkSourcePrintJob* gtk_source_print_job_new_with_buffer (GnomePrintConfig *config, GtkSourceBuffer *buffer);
Creates a new print job to print buffer.
config : | an optional GnomePrintConfig. |
buffer : | the GtkSourceBuffer to print (might be NULL). |
Returns : | a new print job object. |
void gtk_source_print_job_set_config (GtkSourcePrintJob *job, GnomePrintConfig *config);
Sets the print configuration for the job. If you don't set a configuration object for the print job, when needed one will be created with gnome_print_config_default().
job : | a GtkSourcePrintJob. |
config : | a GnomePrintConfig object to get printing configuration from. |
GnomePrintConfig* gtk_source_print_job_get_config (GtkSourcePrintJob *job);
Gets the current GnomePrintConfig the print job will use. If not previously set, this will create a default configuration and return it. The returned object reference is owned by the print job.
job : | a GtkSourcePrintJob. |
Returns : | the GnomePrintConfig for the print job. |
void gtk_source_print_job_set_buffer (GtkSourcePrintJob *job, GtkSourceBuffer *buffer);
Sets the GtkSourceBuffer the print job will print. You need to specify a buffer to print, either by the use of this function or by creating the print job with gtk_source_print_job_new_with_buffer().
job : | a GtkSourcePrintJob. |
buffer : | a GtkSourceBuffer. |
GtkSourceBuffer* gtk_source_print_job_get_buffer (GtkSourcePrintJob *job);
Gets the GtkSourceBuffer the print job would print. The returned object reference (if non NULL) is owned by the job object and should not be unreferenced.
job : | a GtkSourcePrintJob. |
Returns : | the GtkSourceBuffer to print. |
void gtk_source_print_job_setup_from_view (GtkSourcePrintJob *job, GtkSourceView *view);
Convenience function to set several configuration options at once, so that the printed output matches view. The options set are buffer (if not set already), tabs width, highlighting, wrap mode and default font.
job : | a GtkSourcePrintJob. |
view : | a GtkSourceView to get configuration from. |
void gtk_source_print_job_set_tabs_width (GtkSourcePrintJob *job, guint tabs_width);
Sets the width (in equivalent spaces) of tabulations for the printed text. The width in printing units will be calculated as the width of a string containing tabs_width spaces of the default font. Tabulation stops are set for the full width of printed text.
job : | a GtkSourcePrintJob. |
tabs_width : | the number of equivalent spaces for a tabulation. |
guint gtk_source_print_job_get_tabs_width (GtkSourcePrintJob *job);
Determines the configured width (in equivalent spaces) of tabulations. The default value is 8.
job : | a GtkSourcePrintJob. |
Returns : | the width (in equivalent spaces) of a tabulation. |
void gtk_source_print_job_set_wrap_mode (GtkSourcePrintJob *job, GtkWrapMode wrap);
Sets the wrap mode for lines of text larger than the printable width. See GtkWrapMode for a definition of the possible values.
job : | a GtkSourcePrintJob. |
wrap : | the wrap mode. |
GtkWrapMode gtk_source_print_job_get_wrap_mode (GtkSourcePrintJob *job);
Determines the wrapping style for text lines wider than the printable width. The default is no wrapping.
job : | a GtkSourcePrintJob. |
Returns : | the current wrapping mode for the print job. |
void gtk_source_print_job_set_highlight (GtkSourcePrintJob *job, gboolean highlight);
Sets whether the printed text will be highlighted according to the buffer rules. Both color and font style are applied.
job : | a GtkSourcePrintJob. |
highlight : | TRUE if the printed text should be highlighted. |
gboolean gtk_source_print_job_get_highlight (GtkSourcePrintJob *job);
Determines if the job is configured to print the text highlighted with colors and font styles. Note that highlighting will happen only if the buffer to print has highlighting activated.
job : | a GtkSourcePrintJob. |
Returns : | TRUE if the printed output will be highlighted. |
void gtk_source_print_job_set_font (GtkSourcePrintJob *job, const gchar *font_name);
Sets the default font for the printed text. font_name should be a full font name GnomePrint can understand (e.g. "Monospace Regular 10.0").
job : | a GtkSourcePrintJob. |
font_name : | the name of the default font. |
gchar* gtk_source_print_job_get_font (GtkSourcePrintJob *job);
Determines the default font to be used for the printed text. The returned string is of the form "Fontfamily Style Size", for example "Monospace Regular 10.0". The returned value should be freed when no longer needed.
job : | a GtkSourcePrintJob. |
Returns : | a newly allocated string with the name of the current text font. |
void gtk_source_print_job_set_numbers_font (GtkSourcePrintJob *job, const gchar *font_name);
Sets the font for printing line numbers on the left margin. If NULL is supplied, the default font (i.e. the one being used for the text) will be used instead.
job : | a GtkSourcePrintJob. |
font_name : | the full name of the font for line numbers, or NULL. |
gchar* gtk_source_print_job_get_numbers_font (GtkSourcePrintJob *job);
Determines the font to be used for the line numbers. The returned string is of the form "Fontfamily Style Size", for example "Monospace Regular 10.0". The returned value should be freed when no longer needed. This function might return NULL if a specific font for numbers has not been set.
job : | a GtkSourcePrintJob. |
Returns : | a newly allocated string with the name of the current line numbers font, or NULL. |
void gtk_source_print_job_set_print_numbers (GtkSourcePrintJob *job, guint interval);
Sets the interval for printed line numbers. If interval is 0 no numbers will be printed. If greater than 0, a number will be printed every interval lines (i.e. 1 will print all line numbers).
job : | a GtkSourcePrintJob. |
interval : | interval for printed line numbers. |
guint gtk_source_print_job_get_print_numbers (GtkSourcePrintJob *job);
Determines the interval used for line number printing. If the value is 0, no line numbers will be printed. The default value is 1 (i.e. numbers printed in all lines).
job : | a GtkSourcePrintJob. |
Returns : | the interval of printed line numbers. |
void gtk_source_print_job_set_text_margins (GtkSourcePrintJob *job, gdouble top, gdouble bottom, gdouble left, gdouble right);
Sets the four user margins for the print job. These margins are in addition to the document margins provided in the GnomePrintConfig and will not be used for headers, footers or line numbers (those are calculated separatedly). You can print in the space allocated by these margins by connecting to the "begin_page" signal. The space is around the printed text, and inside the margins specified in the GnomePrintConfig.
The margin numbers are given in device units. If any of the given values is less than 0, that particular margin is not altered by this function.
job : | a GtkSourcePrintJob. |
top : | the top user margin. |
bottom : | the bottom user margin. |
left : | the left user margin. |
right : | the right user margin. |
void gtk_source_print_job_get_text_margins (GtkSourcePrintJob *job, gdouble *top, gdouble *bottom, gdouble *left, gdouble *right);
Determine the user set margins for the job. This function retrieves the values previously set by gtk_source_print_job_set_text_margins(). The default for all four margins is 0. Any of the pointers can be NULL if you want to ignore that value.
job : | a GtkSourcePrintJob. |
top : | a pointer to a gdouble to return the top margin. |
bottom : | a pointer to a gdouble to return the bottom margin. |
left : | a pointer to a gdouble to return the left margin. |
right : | a pointer to a gdouble to return the right margin. |
GnomePrintJob* gtk_source_print_job_print (GtkSourcePrintJob *job);
Produces a GnomePrintJob with the printed document. The whole contents of the configured GtkSourceBuffer are printed. The returned job is already closed and ready to be previewed (using gnome_print_job_preview_new()) or printed directly. The caller of this function owns a reference to the returned object, so job can be destroyed and the output will still be valid, or the document can be printed again with different settings.
job : | a configured GtkSourcePrintJob. |
Returns : | a closed GnomePrintJob with the printed document, or NULL if printing could not be completed. |
GnomePrintJob* gtk_source_print_job_print_range (GtkSourcePrintJob *job, const GtkTextIter *start, const GtkTextIter *end);
Similar to gtk_source_print_job_print(), except you can specify a range of text to print. The passed GtkTextIter values might be out of order.
job : | a configured GtkSourcePrintJob. |
start : | the start of the region of text to print. |
end : | the end of the region of text to print. |
Returns : | a closed GnomePrintJob with the text from start to end printed, or NULL if job could not print. |
gboolean gtk_source_print_job_print_range_async (GtkSourcePrintJob *job, const GtkTextIter *start, const GtkTextIter *end);
Starts to print job asynchronously. This function will ready the job for printing and install an idle handler that will render one page at a time.
This function will not return immediatly, as only page rendering is done asynchronously. Text retrieval and paginating happens within this function. Also, if highlighting is enabled, the whole buffer needs to be highlighted first.
To get notification when the job has finished, you must connect to the "finished" signal. After this signal is emitted you can retrieve the resulting GnomePrintJob with gtk_source_print_job_get_print_job(). You may cancel the job with gtk_source_print_job_cancel().
job : | a configured GtkSourcePrintJob. |
start : | the start of the region of text to print. |
end : | the end of the region of text to print. |
Returns : | TRUE if the print started. |
void gtk_source_print_job_cancel (GtkSourcePrintJob *job);
Cancels an asynchronous printing operation. This will remove any pending print idle handler and unref the current GnomePrintJob.
Note that if you got a reference to the job's GnomePrintJob (using gtk_source_print_job_get_print_job()) it will not be destroyed (since you hold a reference to it), but it will not be closed either. If you wish to show or print the partially printed document you need to close it yourself.
This function has no effect when called from a non-asynchronous print operation.
job : | a GtkSourcePrintJob. |
GnomePrintJob* gtk_source_print_job_get_print_job (GtkSourcePrintJob *job);
Gets a reference to the GnomePrintJob which the job is printing or has recently finished printing. You need to unref the returned object.
You may call this function in the middle of an asynchronous printing operation, but the returned GnomePrintJob will not be closed until the last page is printed and the "finished" signal is emitted.
job : | a GtkSourcePrintJob. |
Returns : | a new reference to the job's GnomePrintJob, or NULL. |
guint gtk_source_print_job_get_page (GtkSourcePrintJob *job);
Determines the currently printing page number. This function is only valid while printing (either synchronously or asynchronously).
job : | a GtkSourcePrintJob. |
Returns : | the current page number. |
guint gtk_source_print_job_get_page_count (GtkSourcePrintJob *job);
Determines the total number of pages the job will print. The returned value is only meaninful after pagination has finished. In practice, for synchronous printing this means when "begin_page" is emitted, or after gtk_source_print_job_print_range_async() has returned.
job : | a GtkSourcePrintJob. |
Returns : | the number of pages of the printed job. |
GnomePrintContext* gtk_source_print_job_get_print_context (GtkSourcePrintJob *job);
Determines the GnomePrintContext of the current job. This function is only valid while printing. Normally you would use this function to print in the margins set by gtk_source_print_job_set_margins() in a handler for the "begin_page" signal.
job : | a printing GtkSourcePrintJob. |
Returns : | the current GnomePrintContext. The returned object is owned by job. |
void gtk_source_print_job_set_print_header (GtkSourcePrintJob *job, gboolean setting);
Sets whether you want to print a header in each page. The default header consists of three pieces of text and an optional line separator, configurable with gtk_source_print_job_set_header_format().
Note that by default the header format is unspecified, and if it's empty it will not be printed, regardless of this setting.
job : | a GtkSourcePrintJob. |
setting : | TRUE if you want the header to be printed. |
gboolean gtk_source_print_job_get_print_header (GtkSourcePrintJob *job);
Determines if a header is set to be printed for each page. A header will be printed if this function returns TRUE and some format strings have been specified with gtk_source_print_job_set_header_format().
job : | a GtkSourcePrintJob. |
Returns : | TRUE if the header is set to be printed. |
void gtk_source_print_job_set_print_footer (GtkSourcePrintJob *job, gboolean setting);
Sets whether you want to print a footer in each page. The default footer consists of three pieces of text and an optional line separator, configurable with gtk_source_print_job_set_footer_format().
Note that by default the footer format is unspecified, and if it's empty it will not be printed, regardless of this setting.
job : | a GtkSourcePrintJob. |
setting : | TRUE if you want the footer to be printed. |
gboolean gtk_source_print_job_get_print_footer (GtkSourcePrintJob *job);
Determines if a footer is set to be printed for each page. A footer will be printed if this function returns TRUE and some format strings have been specified with gtk_source_print_job_set_footer_format().
job : | a GtkSourcePrintJob. |
Returns : | TRUE if the footer is set to be printed. |
void gtk_source_print_job_set_header_footer_font (GtkSourcePrintJob *job, const gchar *font_name);
Sets the font for printing headers and footers. If NULL is supplied, the default font (i.e. the one being used for the text) will be used instead.
job : | a GtkSourcePrintJob. |
font_name : | the full name of the font to be used in headers and footers, or NULL. |
gchar* gtk_source_print_job_get_header_footer_font (GtkSourcePrintJob *job);
Determines the font to be used for the header and footer. The returned string is of the form "Fontfamily Style Size", for example "Monospace Regular 10.0". The returned value should be freed when no longer needed. This function might return NULL if a specific font has not been set.
job : | a GtkSourcePrintJob. |
Returns : | a newly allocated string with the name of the current header and footer font, or NULL. |
void gtk_source_print_job_set_header_format (GtkSourcePrintJob *job, const gchar *left, const gchar *center, const gchar *right, gboolean separator);
Sets strftime like header format strings, to be printed on the left, center and right of the top of each page. The strings may include strftime(3) codes which will be expanded at print time. All strftime() codes are accepted, with the addition of N for the page number and Q for the page count.
separator specifies if a solid line should be drawn to separate the header from the document text.
If NULL is given for any of the three arguments, that particular string will not be printed. For the header to be printed, in addition to specifying format strings, you need to enable header printing with gtk_source_print_job_set_print_header().
job : | a GtkSourcePrintJob. |
left : | a format string to print on the left of the header. |
center : | a format string to print on the center of the header. |
right : | a format string to print on the right of the header. |
separator : | TRUE if you want a separator line to be printed. |
void gtk_source_print_job_set_footer_format (GtkSourcePrintJob *job, const gchar *left, const gchar *center, const gchar *right, gboolean separator);
Like gtk_source_print_job_set_header_format(), but for the footer.
job : | a GtkSourcePrintJob. |
left : | a format string to print on the left of the footer. |
center : | a format string to print on the center of the footer. |
right : | a format string to print on the right of the footer. |
separator : | TRUE if you want a separator line to be printed. |
"buffer" (GtkSourceBuffer : Read / Write) | GtkSourceBuffer object to print. |
"config" (GnomePrintConfig : Read / Write) | Configuration options for the print job. |
"font" (gchararray : Read / Write) | Font name to use for the document text. |
"header-footer-font" (gchararray : Read / Write) | Font name to use for the header and footer. |
"highlight" (gboolean : Read / Write) | Whether to print the document with highlighted syntax. |
"numbers-font" (gchararray : Read / Write) | Font name to use for the line numbers. |
"print-footer" (gboolean : Read / Write) | Whether to print a footer in each page. |
"print-header" (gboolean : Read / Write) | Whether to print a header in each page. |
"print-numbers" (guint : Read / Write) | Interval of printed line numbers (0 means no numbers). |
"tabs-width" (guint : Read / Write) | Width in equivalent space characters of tabs. |
"wrap-mode" (GtkWrapMode : Read / Write) | Word wrapping mode. |
void user_function (GtkSourcePrintJob *sourceprintjob, gpointer user_data);
Emitted whenever the sourceprintjob is about to print a new text page. You can connect to this signal to provide the user with feedback about the progress of printing, or to customize the printed page by for example, printing your own headers and footers.
sourceprintjob : | the object which received the signal. |
user_data : | user data set when the signal handler was connected. |
void user_function (GtkSourcePrintJob *sourceprintjob, gpointer user_data);
Emitted whenever an asynchronous print job has finished. You can connect to this signal to get notification when a job has finished printing. When it's emitted, the GnomePrintJob the sourceprintjob was producing has been closed and it can be either previewed or printed to the physical device.
sourceprintjob : | the object which received the signal. |
user_data : | user data set when the signal handler was connected. |
The reference documentation for GtkSourceBuffer. You might also want to check the Gnome Print library reference documentation.
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