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Allow getting the printer's hard margins

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Adds a way to get the unprintable area of the printer. Bug #468989.
This commit is contained in:
Christian Persch 2008-02-06 23:58:47 +01:00
parent e81dacb8e3
commit efa90e4182
9 changed files with 59 additions and 34 deletions
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1
docs/reference/gtk/gtk-sections.txt
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@ -6864,6 +6864,7 @@ gtk_printer_has_details
gtk_printer_request_details
gtk_printer_get_capabilities
gtk_printer_get_default_page_size
gtk_printer_get_hard_margins
GtkPrinterFunc
gtk_enumerate_printers

1
gtk/gtk.symbols
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@ -2945,6 +2945,7 @@ gtk_printer_compare
gtk_printer_has_details
gtk_printer_request_details
gtk_printer_get_capabilities
gtk_printer_get_hard_margins
gtk_enumerate_printers
gtk_print_capabilities_get_type G_GNUC_CONST
#endif

3
gtk/gtkcustompaperunixdialog.c
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@ -802,7 +802,8 @@ set_margins_from_printer (GtkCustomPaperUnixDialog *dialog,
gdouble top, bottom, left, right;
top = bottom = left = right = 0;
_gtk_printer_get_hard_margins (printer, &top, &bottom, &left, &right);
if (!gtk_printer_get_hard_margins (printer, &top, &bottom, &left, &right))
return;
priv->non_user_change = TRUE;
unit_widget_set (priv->top_widget, _gtk_print_convert_to_mm (top, GTK_UNIT_POINTS));

14
gtk/gtkprintbackend.c
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@ -349,11 +349,11 @@ G_DEFINE_TYPE (GtkPrintBackend, gtk_print_backend, G_TYPE_OBJECT)
static void fallback_printer_request_details (GtkPrinter *printer);
static gboolean fallback_printer_mark_conflicts (GtkPrinter *printer,
GtkPrinterOptionSet *options);
static void fallback_printer_get_hard_margins (GtkPrinter *printer,
gdouble *top,
gdouble *bottom,
gdouble *left,
gdouble *right);
static gboolean fallback_printer_get_hard_margins (GtkPrinter *printer,
gdouble *top,
gdouble *bottom,
gdouble *left,
gdouble *right);
static GList * fallback_printer_list_papers (GtkPrinter *printer);
static GtkPageSetup * fallback_printer_get_default_page_size (GtkPrinter *printer);
static GtkPrintCapabilities fallback_printer_get_capabilities (GtkPrinter *printer);
@ -494,7 +494,7 @@ fallback_printer_mark_conflicts (GtkPrinter *printer,
return FALSE;
}
static void
static gboolean
fallback_printer_get_hard_margins (GtkPrinter *printer,
gdouble *top,
gdouble *bottom,
@ -505,6 +505,8 @@ fallback_printer_get_hard_margins (GtkPrinter *printer,
*bottom = 0;
*left = 0;
*right = 0;
return TRUE;
}
static GList *

10
gtk/gtkprintbackend.h
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@ -104,11 +104,11 @@ struct _GtkPrintBackendClass
GtkPageSetup *page_setup);
GList * (*printer_list_papers) (GtkPrinter *printer);
GtkPageSetup * (*printer_get_default_page_size) (GtkPrinter *printer);
void (*printer_get_hard_margins) (GtkPrinter *printer,
double *top,
double *bottom,
double *left,
double *right);
gboolean (*printer_get_hard_margins) (GtkPrinter *printer,
gdouble *top,
gdouble *bottom,
gdouble *left,
gdouble *right);
GtkPrintCapabilities (*printer_get_capabilities) (GtkPrinter *printer);
/* Signals */

5
gtk/gtkprinter-private.h
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@ -45,11 +45,6 @@ cairo_surface_t * _gtk_printer_create_cairo_surface (GtkPrinter
gdouble width,
gdouble height,
GIOChannel *cache_io);
void _gtk_printer_get_hard_margins (GtkPrinter *printer,
gdouble *top,
gdouble *bottom,
gdouble *left,
gdouble *right);
GHashTable * _gtk_printer_get_custom_widgets (GtkPrinter *printer);
/* GtkPrintJob private methods: */

36
gtk/gtkprinter.c
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@ -956,7 +956,7 @@ gtk_printer_list_papers (GtkPrinter *printer)
*
* Return value: a newly allocated #GtkPageSetup with default page size of the printer.
*
* Since: 2.13
* Since: 2.14
*/
GtkPageSetup *
gtk_printer_get_default_page_size (GtkPrinter *printer)
@ -969,16 +969,34 @@ gtk_printer_get_default_page_size (GtkPrinter *printer)
return backend_class->printer_get_default_page_size (printer);
}
void
_gtk_printer_get_hard_margins (GtkPrinter *printer,
gdouble *top,
gdouble *bottom,
gdouble *left,
gdouble *right)
/**
* gtk_printer_get_hard_margins:
* @printer: a #GtkPrinter
* @top: a location to store the top margin in
* @bottom: a location to store the bottom margin in
* @left: a location to store the left margin in
* @right: a location to store the right margin in
*
* Retrieve the hard margins of @printer, i.e. the margins that define
* the area at the borders of the paper that the printer cannot print to.
*
* Note: This will not succeed unless the printer's details are available,
* see gtk_printer_has_details() and gtk_printer_request_details().
*
* Return value: %TRUE iff the hard margins were retrieved
*
* Since: 2.18
*/
gboolean
gtk_printer_get_hard_margins (GtkPrinter *printer,
gdouble *top,
gdouble *bottom,
gdouble *left,
gdouble *right)
{
GtkPrintBackendClass *backend_class = GTK_PRINT_BACKEND_GET_CLASS (printer->priv->backend);
backend_class->printer_get_hard_margins (printer, top, bottom, left, right);
return backend_class->printer_get_hard_margins (printer, top, bottom, left, right);
}
/**
@ -993,7 +1011,7 @@ _gtk_printer_get_hard_margins (GtkPrinter *printer,
*
* This will return 0 unless the printer's details are available, see
* gtk_printer_has_details() and gtk_printer_request_details().
* *
*
* Return value: the printer's capabilities
*
* Since: 2.12

5
gtk/gtkprinter.h
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@ -113,6 +113,11 @@ gint gtk_printer_compare (GtkPrinter *a,
gboolean gtk_printer_has_details (GtkPrinter *printer);
void gtk_printer_request_details (GtkPrinter *printer);
GtkPrintCapabilities gtk_printer_get_capabilities (GtkPrinter *printer);
gboolean gtk_printer_get_hard_margins (GtkPrinter *printer,
gdouble *top,
gdouble *bottom,
gdouble *left,
gdouble *right);
typedef gboolean (*GtkPrinterFunc) (GtkPrinter *printer,
gpointer data);

16
modules/printbackends/cups/gtkprintbackendcups.c
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@ -158,11 +158,11 @@ static GtkPageSetup * cups_printer_get_default_page_size (GtkPrinter
static void cups_printer_request_details (GtkPrinter *printer);
static gboolean cups_request_default_printer (GtkPrintBackendCups *print_backend);
static gboolean cups_request_ppd (GtkPrinter *printer);
static void cups_printer_get_hard_margins (GtkPrinter *printer,
double *top,
double *bottom,
double *left,
double *right);
static gboolean cups_printer_get_hard_margins (GtkPrinter *printer,
gdouble *top,
gdouble *bottom,
gdouble *left,
gdouble *right);
static GtkPrintCapabilities cups_printer_get_capabilities (GtkPrinter *printer);
static void set_option_from_settings (GtkPrinterOption *option,
GtkPrintSettings *setting);
@ -4428,7 +4428,7 @@ cups_printer_get_default_page_size (GtkPrinter *printer)
return create_page_setup (ppd_file, size);
}
static void
static gboolean
cups_printer_get_hard_margins (GtkPrinter *printer,
gdouble *top,
gdouble *bottom,
@ -4439,12 +4439,14 @@ cups_printer_get_hard_margins (GtkPrinter *printer,
ppd_file = gtk_printer_cups_get_ppd (GTK_PRINTER_CUPS (printer));
if (ppd_file == NULL)
return;
return FALSE;
*left = ppd_file->custom_margins[0];
*bottom = ppd_file->custom_margins[1];
*right = ppd_file->custom_margins[2];
*top = ppd_file->custom_margins[3];
return TRUE;
}
static GtkPrintCapabilities