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char * | body-font-name | Read / Write |
GtkSourceBuffer * | buffer | Read / Write / Construct Only |
char * | footer-font-name | Read / Write |
char * | header-font-name | Read / Write |
gboolean | highlight-syntax | Read / Write |
char * | line-numbers-font-name | Read / Write |
int | n-pages | Read |
gboolean | print-footer | Read / Write |
gboolean | print-header | Read / Write |
guint | print-line-numbers | Read / Write |
guint | tab-width | Read / Write |
GtkWrapMode | wrap-mode | Read / Write |
The GtkSourcePrintCompositor object is used to compose a GtkSourceBuffer for printing. You can set various configuration options to customize the printed output. GtkSourcePrintCompositor is designed to be used with the high-level printing API of gtk+, i.e. GtkPrintOperation.
The margins specified in this object are the layout margins: they define the blank space bordering the printed area of the pages. They must not be confused with the "print margins", i.e. the parts of the page that the printer cannot print on, defined in the GtkPageSetup objects. If the specified layout margins are smaller than the "print margins", the latter ones are used as a fallback by the GtkSourcePrintCompositor object, so that the printed area is not clipped.
GtkSourcePrintCompositor *
gtk_source_print_compositor_new (GtkSourceBuffer *buffer
);
Creates a new print compositor that can be used to print buffer
.
Since: 2.2
GtkSourcePrintCompositor *
gtk_source_print_compositor_new_from_view
(GtkSourceView *view
);
Creates a new print compositor that can be used to print the buffer
associated with view
.
This constructor sets some configuration properties to make the
printed output match view
as much as possible. The properties set are
“tab-width”, “highlight-syntax”,
“wrap-mode”, “body-font-name” and
“print-line-numbers”.
Since: 2.2
GtkSourceBuffer *
gtk_source_print_compositor_get_buffer
(GtkSourcePrintCompositor *compositor
);
Gets the GtkSourceBuffer associated with the compositor. The returned object reference is owned by the compositor object and should not be unreferenced.
Since: 2.2
void gtk_source_print_compositor_set_tab_width (GtkSourcePrintCompositor *compositor
,guint width
);
Sets the width of tabulation in characters for printed text.
This function cannot be called anymore after the first call to the
gtk_source_print_compositor_paginate()
function.
Since: 2.2
guint
gtk_source_print_compositor_get_tab_width
(GtkSourcePrintCompositor *compositor
);
Returns the width of tabulation in characters for printed text.
Since: 2.2
void gtk_source_print_compositor_set_wrap_mode (GtkSourcePrintCompositor *compositor
,GtkWrapMode wrap_mode
);
Sets the line wrapping mode for the printed text.
This function cannot be called anymore after the first call to the
gtk_source_print_compositor_paginate()
function.
Since: 2.2
GtkWrapMode
gtk_source_print_compositor_get_wrap_mode
(GtkSourcePrintCompositor *compositor
);
Gets the line wrapping mode for the printed text.
Since: 2.2
void gtk_source_print_compositor_set_highlight_syntax (GtkSourcePrintCompositor *compositor
,gboolean highlight
);
Sets whether the printed text will be highlighted according to the buffer rules. Both color and font style are applied.
This function cannot be called anymore after the first call to the
gtk_source_print_compositor_paginate()
function.
Since: 2.2
gboolean
gtk_source_print_compositor_get_highlight_syntax
(GtkSourcePrintCompositor *compositor
);
Determines whether the printed text will be highlighted according to the buffer rules. Note that highlighting will happen only if the buffer to print has highlighting activated.
Since: 2.2
void gtk_source_print_compositor_set_print_line_numbers (GtkSourcePrintCompositor *compositor
,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).
Maximum accepted value for interval
is 100.
This function cannot be called anymore after the first call to the
gtk_source_print_compositor_paginate()
function.
Since: 2.2
guint
gtk_source_print_compositor_get_print_line_numbers
(GtkSourcePrintCompositor *compositor
);
Returns 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).
Since: 2.2
void gtk_source_print_compositor_set_body_font_name (GtkSourcePrintCompositor *compositor
,const gchar *font_name
);
Sets the default font for the printed text.
font_name
should be a
string representation of a font description Pango can understand.
(e.g. "Monospace 10"). See pango_font_description_from_string()
for a description of the format of the string representation.
This function cannot be called anymore after the first call to the
gtk_source_print_compositor_paginate()
function.
Since: 2.2
gchar *
gtk_source_print_compositor_get_body_font_name
(GtkSourcePrintCompositor *compositor
);
Returns the name of the font used to print the text body. The returned string
must be freed with g_free()
.
Since: 2.2
void gtk_source_print_compositor_set_line_numbers_font_name (GtkSourcePrintCompositor *compositor
,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.
font_name
should be a
string representation of a font description Pango can understand.
(e.g. "Monospace 10"). See pango_font_description_from_string()
for a description of the format of the string representation.
This function cannot be called anymore after the first call to the
gtk_source_print_compositor_paginate()
function.
Since: 2.2
gchar *
gtk_source_print_compositor_get_line_numbers_font_name
(GtkSourcePrintCompositor *compositor
);
Returns the name of the font used to print line numbers on the left margin.
The returned string must be freed with g_free()
.
Since: 2.2
void gtk_source_print_compositor_set_header_font_name (GtkSourcePrintCompositor *compositor
,const gchar *font_name
);
Sets the font for printing the page header. If
NULL
is supplied, the default font (i.e. the one being used for the
text) will be used instead.
font_name
should be a
string representation of a font description Pango can understand.
(e.g. "Monospace 10"). See pango_font_description_from_string()
for a description of the format of the string representation.
This function cannot be called anymore after the first call to the
gtk_source_print_compositor_paginate()
function.
Since: 2.2
gchar *
gtk_source_print_compositor_get_header_font_name
(GtkSourcePrintCompositor *compositor
);
Returns the name of the font used to print the page header.
The returned string must be freed with g_free()
.
Since: 2.2
void gtk_source_print_compositor_set_footer_font_name (GtkSourcePrintCompositor *compositor
,const gchar *font_name
);
Sets the font for printing the page footer. If
NULL
is supplied, the default font (i.e. the one being used for the
text) will be used instead.
font_name
should be a
string representation of a font description Pango can understand.
(e.g. "Monospace 10"). See pango_font_description_from_string()
for a description of the format of the string representation.
This function cannot be called anymore after the first call to the
gtk_source_print_compositor_paginate()
function.
Since: 2.2
gchar *
gtk_source_print_compositor_get_footer_font_name
(GtkSourcePrintCompositor *compositor
);
Returns the name of the font used to print the page footer.
The returned string must be freed with g_free()
.
Since: 2.2
gdouble gtk_source_print_compositor_get_top_margin (GtkSourcePrintCompositor *compositor
,GtkUnit unit
);
Gets the top margin in units of unit
.
Since: 2.2
void gtk_source_print_compositor_set_top_margin (GtkSourcePrintCompositor *compositor
,gdouble margin
,GtkUnit unit
);
Sets the top margin used by compositor
.
Since: 2.2
gdouble gtk_source_print_compositor_get_bottom_margin (GtkSourcePrintCompositor *compositor
,GtkUnit unit
);
Gets the bottom margin in units of unit
.
Since: 2.2
void gtk_source_print_compositor_set_bottom_margin (GtkSourcePrintCompositor *compositor
,gdouble margin
,GtkUnit unit
);
Sets the bottom margin used by compositor
.
Since: 2.2
gdouble gtk_source_print_compositor_get_left_margin (GtkSourcePrintCompositor *compositor
,GtkUnit unit
);
Gets the left margin in units of unit
.
Since: 2.2
void gtk_source_print_compositor_set_left_margin (GtkSourcePrintCompositor *compositor
,gdouble margin
,GtkUnit unit
);
Sets the left margin used by compositor
.
Since: 2.2
gdouble gtk_source_print_compositor_get_right_margin (GtkSourcePrintCompositor *compositor
,GtkUnit unit
);
Gets the right margin in units of unit
.
Since: 2.2
void gtk_source_print_compositor_set_right_margin (GtkSourcePrintCompositor *compositor
,gdouble margin
,GtkUnit unit
);
Sets the right margin used by compositor
.
Since: 2.2
void gtk_source_print_compositor_set_print_header (GtkSourcePrintCompositor *compositor
,gboolean print
);
Sets whether you want to print a header in each page. The
header consists of three pieces of text and an optional line
separator, configurable with
gtk_source_print_compositor_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.
This function cannot be called anymore after the first call to the
gtk_source_print_compositor_paginate()
function.
Since: 2.2
gboolean
gtk_source_print_compositor_get_print_header
(GtkSourcePrintCompositor *compositor
);
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_compositor_set_header_format()
.
Since: 2.2
void gtk_source_print_compositor_set_print_footer (GtkSourcePrintCompositor *compositor
,gboolean print
);
Sets whether you want to print a footer in each page. The
footer consists of three pieces of text and an optional line
separator, configurable with
gtk_source_print_compositor_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.
This function cannot be called anymore after the first call to the
gtk_source_print_compositor_paginate()
function.
Since: 2.2
gboolean
gtk_source_print_compositor_get_print_footer
(GtkSourcePrintCompositor *compositor
);
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_compositor_set_footer_format()
.
Since: 2.2
void gtk_source_print_compositor_set_header_format (GtkSourcePrintCompositor *compositor
,gboolean separator
,const gchar *left
,const gchar *center
,const gchar *right
);
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.
A subset of strftime()
codes are accepted, see g_date_time_format()
for more details on the accepted format specifiers.
Additionally the following format specifiers are accepted:
#N: the page number
#Q: 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_compositor_set_print_header()
.
This function cannot be called anymore after the first call to the
gtk_source_print_compositor_paginate()
function.
compositor |
||
separator |
|
|
left |
a format string to print on the left of the header. |
[nullable] |
center |
a format string to print on the center of the header. |
[nullable] |
right |
a format string to print on the right of the header. |
[nullable] |
Since: 2.2
void gtk_source_print_compositor_set_footer_format (GtkSourcePrintCompositor *compositor
,gboolean separator
,const gchar *left
,const gchar *center
,const gchar *right
);
See gtk_source_print_compositor_set_header_format()
for more information
about the parameters.
compositor |
||
separator |
|
|
left |
a format string to print on the left of the footer. |
[nullable] |
center |
a format string to print on the center of the footer. |
[nullable] |
right |
a format string to print on the right of the footer. |
[nullable] |
Since: 2.2
gint
gtk_source_print_compositor_get_n_pages
(GtkSourcePrintCompositor *compositor
);
Returns the number of pages in the document or -1
if the
document has not been completely paginated.
the number of pages in the document or -1
if the
document has not been completely paginated.
Since: 2.2
gboolean gtk_source_print_compositor_paginate (GtkSourcePrintCompositor *compositor
,GtkPrintContext *context
);
Paginate the document associated with the compositor
.
In order to support non-blocking pagination, document is paginated in small chunks.
Each time gtk_source_print_compositor_paginate()
is invoked, a chunk of the document
is paginated. To paginate the entire document, gtk_source_print_compositor_paginate()
must be invoked multiple times.
It returns TRUE
if the document has been completely paginated, otherwise it returns FALSE
.
This method has been designed to be invoked in the handler of the “paginate” signal, as shown in the following example:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 |
// Signal handler for the GtkPrintOperation::paginate signal static gboolean paginate (GtkPrintOperation *operation, GtkPrintContext *context, gpointer user_data) { GtkSourcePrintCompositor *compositor; compositor = GTK_SOURCE_PRINT_COMPOSITOR (user_data); if (gtk_source_print_compositor_paginate (compositor, context)) { gint n_pages; n_pages = gtk_source_print_compositor_get_n_pages (compositor); gtk_print_operation_set_n_pages (operation, n_pages); return TRUE; } return FALSE; } |
If you don't need to do pagination in chunks, you can simply do it all in the “begin-print” handler, and set the number of pages from there, like in the following example:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 |
// Signal handler for the GtkPrintOperation::begin-print signal static void begin_print (GtkPrintOperation *operation, GtkPrintContext *context, gpointer user_data) { GtkSourcePrintCompositor *compositor; gint n_pages; compositor = GTK_SOURCE_PRINT_COMPOSITOR (user_data); while (!gtk_source_print_compositor_paginate (compositor, context)); n_pages = gtk_source_print_compositor_get_n_pages (compositor); gtk_print_operation_set_n_pages (operation, n_pages); } |
compositor |
||
context |
the GtkPrintContext whose parameters (e.g. paper size, print margins, etc.)
are used by the the |
Since: 2.2
gdouble
gtk_source_print_compositor_get_pagination_progress
(GtkSourcePrintCompositor *compositor
);
Returns the current fraction of the document pagination that has been completed.
Since: 2.2
void gtk_source_print_compositor_draw_page (GtkSourcePrintCompositor *compositor
,GtkPrintContext *context
,gint page_nr
);
Draw page page_nr
for printing on the the Cairo context encapsuled in context
.
This method has been designed to be called in the handler of the “draw_page” signal as shown in the following example:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 |
// Signal handler for the GtkPrintOperation::draw_page signal static void draw_page (GtkPrintOperation *operation, GtkPrintContext *context, gint page_nr, gpointer user_data) { GtkSourcePrintCompositor *compositor; compositor = GTK_SOURCE_PRINT_COMPOSITOR (user_data); gtk_source_print_compositor_draw_page (compositor, context, page_nr); } |
compositor |
||
context |
the GtkPrintContext encapsulating the context information that is required when drawing the page for printing. |
|
page_nr |
the number of the page to print. |
“body-font-name”
property “body-font-name” char *
Name of the font used for the text body.
Accepted values are strings representing a font description Pango can understand.
(e.g. "Monospace 10"). See pango_font_description_from_string()
for a description of the format of the string representation.
The value of this property cannot be changed anymore after the first
call to the gtk_source_print_compositor_paginate()
function.
Owner: GtkSourcePrintCompositor
Flags: Read / Write
Default value: NULL
Since: 2.2
“buffer”
property“buffer” GtkSourceBuffer *
The GtkSourceBuffer object to print.
Owner: GtkSourcePrintCompositor
Flags: Read / Write / Construct Only
Since: 2.2
“footer-font-name”
property “footer-font-name” char *
Name of the font used to print page footer. If this property is unspecified, the text body font is used.
Accepted values are strings representing a font description Pango can understand.
(e.g. "Monospace 10"). See pango_font_description_from_string()
for a description of the format of the string representation.
The value of this property cannot be changed anymore after the first
call to the gtk_source_print_compositor_paginate()
function.
Owner: GtkSourcePrintCompositor
Flags: Read / Write
Default value: NULL
Since: 2.2
“header-font-name”
property “header-font-name” char *
Name of the font used to print page header. If this property is unspecified, the text body font is used.
Accepted values are strings representing a font description Pango can understand.
(e.g. "Monospace 10"). See pango_font_description_from_string()
for a description of the format of the string representation.
The value of this property cannot be changed anymore after the first
call to the gtk_source_print_compositor_paginate()
function.
Owner: GtkSourcePrintCompositor
Flags: Read / Write
Default value: NULL
Since: 2.2
“highlight-syntax”
property“highlight-syntax” gboolean
Whether to print the document with highlighted syntax.
The value of this property cannot be changed anymore after the first
call to the gtk_source_print_compositor_paginate()
function.
Owner: GtkSourcePrintCompositor
Flags: Read / Write
Default value: TRUE
Since: 2.2
“line-numbers-font-name”
property “line-numbers-font-name” char *
Name of the font used to print line numbers on the left margin. If this property is unspecified, the text body font is used.
Accepted values are strings representing a font description Pango can understand.
(e.g. "Monospace 10"). See pango_font_description_from_string()
for a description of the format of the string representation.
The value of this property cannot be changed anymore after the first
call to the gtk_source_print_compositor_paginate()
function.
Owner: GtkSourcePrintCompositor
Flags: Read / Write
Default value: NULL
Since: 2.2
“n-pages”
property “n-pages” int
The number of pages in the document or -1
if the
document has not been completely paginated.
Owner: GtkSourcePrintCompositor
Flags: Read
Allowed values: >= -1
Default value: -1
Since: 2.2
“print-footer”
property“print-footer” gboolean
Whether to print a footer in each page.
Note that by default the footer format is unspecified, and if it is unspecified the footer will not be printed, regardless of the value of this property.
The value of this property cannot be changed anymore after the first
call to the gtk_source_print_compositor_paginate()
function.
Owner: GtkSourcePrintCompositor
Flags: Read / Write
Default value: FALSE
Since: 2.2
“print-header”
property“print-header” gboolean
Whether to print a header in each page.
Note that by default the header format is unspecified, and if it is unspecified the header will not be printed, regardless of the value of this property.
The value of this property cannot be changed anymore after the first
call to the gtk_source_print_compositor_paginate()
function.
Owner: GtkSourcePrintCompositor
Flags: Read / Write
Default value: FALSE
Since: 2.2
“print-line-numbers”
property“print-line-numbers” guint
Interval of printed line numbers. If this property is set to 0 no numbers will be printed. If greater than 0, a number will be printed every "print-line-numbers" lines (i.e. 1 will print all line numbers).
The value of this property cannot be changed anymore after the first
call to the gtk_source_print_compositor_paginate()
function.
Owner: GtkSourcePrintCompositor
Flags: Read / Write
Allowed values: <= 100
Default value: 1
Since: 2.2
“tab-width”
property“tab-width” guint
Width of a tab character expressed in spaces.
The value of this property cannot be changed anymore after the first
call to the gtk_source_print_compositor_paginate()
function.
Owner: GtkSourcePrintCompositor
Flags: Read / Write
Allowed values: [1,32]
Default value: 8
Since: 2.2
“wrap-mode”
property“wrap-mode” GtkWrapMode
Whether to wrap lines never, at word boundaries, or at character boundaries.
The value of this property cannot be changed anymore after the first
call to the gtk_source_print_compositor_paginate()
function.
Owner: GtkSourcePrintCompositor
Flags: Read / Write
Default value: GTK_WRAP_NONE
Since: 2.2