forked from AuroraMiddleware/gtk
945 lines
24 KiB
C
945 lines
24 KiB
C
/* GTK - The GIMP Toolkit
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* gtkpapersize.c: Paper Size
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* Copyright (C) 2006, Red Hat, Inc.
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* Copyright © 2006, 2007 Christian Persch
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <string.h>
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#include <stdlib.h>
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#include <locale.h>
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#if defined(HAVE__NL_PAPER_HEIGHT) && defined(HAVE__NL_PAPER_WIDTH)
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#include <langinfo.h>
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#endif
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#include "gtkpapersize.h"
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#include "gtkprintutils.h"
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#include "gtkprintoperation.h" /* for GtkPrintError */
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#include "gtkintl.h"
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/* _gtk_load_custom_papers() only on Unix so far */
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#ifdef G_OS_UNIX
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#include "gtkcustompaperunixdialog.h"
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#endif
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#include "paper_names_offsets.c"
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/**
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* SECTION:gtkpapersize
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* @Short_description: Support for named paper sizes
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* @Title: GtkPaperSize
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* @See_also:#GtkPageSetup
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*
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* GtkPaperSize handles paper sizes. It uses the standard called
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* [PWG 5101.1-2002 PWG: Standard for Media Standardized Names](http://www.pwg.org/standards.html)
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* to name the paper sizes (and to get the data for the page sizes).
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* In addition to standard paper sizes, GtkPaperSize allows to
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* construct custom paper sizes with arbitrary dimensions.
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*
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* The #GtkPaperSize object stores not only the dimensions (width
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* and height) of a paper size and its name, it also provides
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* default [print margins][print-margins].
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*
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* Printing support has been added in GTK+ 2.10.
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*/
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struct _GtkPaperSize
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{
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const PaperInfo *info;
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/* If these are not set we fall back to info */
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gchar *name;
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gchar *display_name;
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gchar *ppd_name;
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gdouble width, height; /* Stored in mm */
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gboolean is_custom;
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};
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G_DEFINE_BOXED_TYPE (GtkPaperSize, gtk_paper_size,
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gtk_paper_size_copy,
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gtk_paper_size_free)
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static const PaperInfo *
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lookup_paper_info (const gchar *name)
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{
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int lower = 0;
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int upper = G_N_ELEMENTS (standard_names_offsets) - 1;
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int mid;
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int cmp;
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do
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{
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mid = (lower + upper) / 2;
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cmp = strcmp (name, paper_names + standard_names_offsets[mid].name);
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if (cmp < 0)
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upper = mid - 1;
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else if (cmp > 0)
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lower = mid + 1;
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else
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return &standard_names_offsets[mid];
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}
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while (lower <= upper);
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return NULL;
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}
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static gboolean
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parse_media_size (const gchar *size,
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gdouble *width_mm,
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gdouble *height_mm)
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{
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const char *p;
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char *e;
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double short_dim, long_dim;
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p = size;
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short_dim = g_ascii_strtod (p, &e);
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if (p == e || *e != 'x')
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return FALSE;
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p = e + 1; /* Skip x */
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long_dim = g_ascii_strtod (p, &e);
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if (p == e)
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return FALSE;
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p = e;
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if (strcmp (p, "in") == 0)
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{
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short_dim = short_dim * MM_PER_INCH;
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long_dim = long_dim * MM_PER_INCH;
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}
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else if (strcmp (p, "mm") != 0)
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return FALSE;
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if (width_mm)
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*width_mm = short_dim;
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if (height_mm)
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*height_mm = long_dim;
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return TRUE;
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}
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static gboolean
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parse_full_media_size_name (const gchar *full_name,
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gchar **name,
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gdouble *width_mm,
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gdouble *height_mm)
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{
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const char *p;
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const char *end_of_name;
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/* From the spec:
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media-size-self-describing-name =
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( class-in "_" size-name "_" short-dim "x" long-dim "in" ) |
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( class-mm "_" size-name "_" short-dim "x" long-dim "mm" )
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class-in = "custom" | "na" | "asme" | "roc" | "oe"
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class-mm = "custom" | "iso" | "jis" | "jpn" | "prc" | "om"
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size-name = ( lowalpha | digit ) *( lowalpha | digit | "-" )
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short-dim = dim
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long-dim = dim
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dim = integer-part [fraction-part] | "0" fraction-part
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integer-part = non-zero-digit *digit
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fraction-part = "." *digit non-zero-digit
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lowalpha = "a" | "b" | "c" | "d" | "e" | "f" | "g" | "h" | "i" |
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"j" | "k" | "l" | "m" | "n" | "o" | "p" | "q" | "r" |
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"s" | "t" | "u" | "v" | "w" | "x" | "y" | "z"
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non-zero-digit = "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9"
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digit = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9"
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*/
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p = strchr (full_name, '_');
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if (p == NULL)
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return FALSE;
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p++; /* Skip _ */
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p = strchr (p, '_');
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if (p == NULL)
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return FALSE;
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end_of_name = p;
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p++; /* Skip _ */
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if (!parse_media_size (p, width_mm, height_mm))
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return FALSE;
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if (name)
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*name = g_strndup (full_name, end_of_name - full_name);
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return TRUE;
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}
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static GtkPaperSize *
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gtk_paper_size_new_from_info (const PaperInfo *info)
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{
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GtkPaperSize *size;
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size = g_slice_new0 (GtkPaperSize);
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size->info = info;
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size->width = info->width;
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size->height = info->height;
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return size;
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}
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/**
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* gtk_paper_size_new:
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* @name: (allow-none): a paper size name, or %NULL
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*
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* Creates a new #GtkPaperSize object by parsing a
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* [PWG 5101.1-2002](ftp://ftp.pwg.org/pub/pwg/candidates/cs-pwgmsn10-20020226-5101.1.pdf)
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* paper name.
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*
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* If @name is %NULL, the default paper size is returned,
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* see gtk_paper_size_get_default().
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*
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* Return value: a new #GtkPaperSize, use gtk_paper_size_free()
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* to free it
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*
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* Since: 2.10
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*/
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GtkPaperSize *
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gtk_paper_size_new (const gchar *name)
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{
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GtkPaperSize *size;
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char *short_name;
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double width, height;
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const PaperInfo *info;
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if (name == NULL)
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name = gtk_paper_size_get_default ();
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if (parse_full_media_size_name (name, &short_name, &width, &height))
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{
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info = lookup_paper_info (short_name);
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if (info != NULL && info->width == width && info->height == height)
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{
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size = gtk_paper_size_new_from_info (info);
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g_free (short_name);
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}
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else
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{
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size = g_slice_new0 (GtkPaperSize);
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size->width = width;
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size->height = height;
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size->name = short_name;
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size->display_name = g_strdup (short_name);
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if (strncmp (short_name, "custom", 6) == 0)
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size->is_custom = TRUE;
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}
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}
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else
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{
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info = lookup_paper_info (name);
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if (info != NULL)
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size = gtk_paper_size_new_from_info (info);
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else
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{
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g_warning ("Unknown paper size %s\n", name);
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size = g_slice_new0 (GtkPaperSize);
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size->name = g_strdup (name);
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size->display_name = g_strdup (name);
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/* Default to A4 size */
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size->width = 210;
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size->height = 297;
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}
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}
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return size;
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}
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/**
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* gtk_paper_size_new_from_ppd:
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* @ppd_name: a PPD paper name
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* @ppd_display_name: the corresponding human-readable name
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* @width: the paper width, in points
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* @height: the paper height in points
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*
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* Creates a new #GtkPaperSize object by using
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* PPD information.
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*
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* If @ppd_name is not a recognized PPD paper name,
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* @ppd_display_name, @width and @height are used to
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* construct a custom #GtkPaperSize object.
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*
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* Return value: a new #GtkPaperSize, use gtk_paper_size_free()
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* to free it
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*
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* Since: 2.10
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*/
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GtkPaperSize *
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gtk_paper_size_new_from_ppd (const gchar *ppd_name,
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const gchar *ppd_display_name,
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gdouble width,
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gdouble height)
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{
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char *name;
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const char *lookup_ppd_name;
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char *freeme;
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GtkPaperSize *size;
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int i;
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lookup_ppd_name = ppd_name;
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freeme = NULL;
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/* Strip out Traverse suffix in matching. */
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if (g_str_has_suffix (ppd_name, ".Transverse"))
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{
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lookup_ppd_name = freeme =
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g_strndup (ppd_name, strlen (ppd_name) - strlen (".Transverse"));
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}
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for (i = 0; i < G_N_ELEMENTS(standard_names_offsets); i++)
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{
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if (standard_names_offsets[i].ppd_name != -1 &&
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strcmp (paper_names + standard_names_offsets[i].ppd_name, lookup_ppd_name) == 0)
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{
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size = gtk_paper_size_new_from_info (&standard_names_offsets[i]);
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goto out;
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}
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}
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for (i = 0; i < G_N_ELEMENTS(extra_ppd_names_offsets); i++)
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{
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if (strcmp (paper_names + extra_ppd_names_offsets[i].ppd_name, lookup_ppd_name) == 0)
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{
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size = gtk_paper_size_new (paper_names + extra_ppd_names_offsets[i].standard_name);
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goto out;
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}
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}
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name = g_strconcat ("ppd_", ppd_name, NULL);
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size = gtk_paper_size_new_custom (name, ppd_display_name, width, height, GTK_UNIT_POINTS);
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g_free (name);
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out:
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if (size->info == NULL ||
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size->info->ppd_name == -1 ||
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strcmp (paper_names + size->info->ppd_name, ppd_name) != 0)
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size->ppd_name = g_strdup (ppd_name);
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g_free (freeme);
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return size;
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}
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/**
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* gtk_paper_size_new_custom:
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* @name: the paper name
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* @display_name: the human-readable name
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* @width: the paper width, in units of @unit
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* @height: the paper height, in units of @unit
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* @unit: the unit for @width and @height. not %GTK_UNIT_NONE.
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*
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* Creates a new #GtkPaperSize object with the
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* given parameters.
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*
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* Return value: a new #GtkPaperSize object, use gtk_paper_size_free()
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* to free it
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*
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* Since: 2.10
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*/
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GtkPaperSize *
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gtk_paper_size_new_custom (const gchar *name,
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const gchar *display_name,
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gdouble width,
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gdouble height,
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GtkUnit unit)
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{
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GtkPaperSize *size;
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g_return_val_if_fail (name != NULL, NULL);
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g_return_val_if_fail (unit != GTK_UNIT_NONE, NULL);
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size = g_slice_new0 (GtkPaperSize);
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size->name = g_strdup (name);
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size->display_name = g_strdup (display_name);
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size->is_custom = TRUE;
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size->width = _gtk_print_convert_to_mm (width, unit);
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size->height = _gtk_print_convert_to_mm (height, unit);
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return size;
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}
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||
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/**
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* gtk_paper_size_copy:
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* @other: a #GtkPaperSize
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*
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* Copies an existing #GtkPaperSize.
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*
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* Return value: a copy of @other
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*
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* Since: 2.10
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||
*/
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GtkPaperSize *
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gtk_paper_size_copy (GtkPaperSize *other)
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{
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GtkPaperSize *size;
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size = g_slice_new0 (GtkPaperSize);
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size->info = other->info;
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if (other->name)
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size->name = g_strdup (other->name);
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if (other->display_name)
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size->display_name = g_strdup (other->display_name);
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if (other->ppd_name)
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size->ppd_name = g_strdup (other->ppd_name);
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size->width = other->width;
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size->height = other->height;
|
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size->is_custom = other->is_custom;
|
||
|
||
return size;
|
||
}
|
||
|
||
/**
|
||
* gtk_paper_size_free:
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||
* @size: a #GtkPaperSize
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*
|
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* Free the given #GtkPaperSize object.
|
||
*
|
||
* Since: 2.10
|
||
*/
|
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void
|
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gtk_paper_size_free (GtkPaperSize *size)
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{
|
||
g_free (size->name);
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g_free (size->display_name);
|
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g_free (size->ppd_name);
|
||
|
||
g_slice_free (GtkPaperSize, size);
|
||
}
|
||
|
||
/**
|
||
* gtk_paper_size_is_equal:
|
||
* @size1: a #GtkPaperSize object
|
||
* @size2: another #GtkPaperSize object
|
||
*
|
||
* Compares two #GtkPaperSize objects.
|
||
*
|
||
* Return value: %TRUE, if @size1 and @size2
|
||
* represent the same paper size
|
||
*
|
||
* Since: 2.10
|
||
*/
|
||
gboolean
|
||
gtk_paper_size_is_equal (GtkPaperSize *size1,
|
||
GtkPaperSize *size2)
|
||
{
|
||
if (size1->info != NULL && size2->info != NULL)
|
||
return size1->info == size2->info;
|
||
|
||
return strcmp (gtk_paper_size_get_name (size1),
|
||
gtk_paper_size_get_name (size2)) == 0;
|
||
}
|
||
|
||
/**
|
||
* gtk_paper_size_get_paper_sizes:
|
||
* @include_custom: whether to include custom paper sizes
|
||
* as defined in the page setup dialog
|
||
*
|
||
* Creates a list of known paper sizes.
|
||
*
|
||
* Return value: (element-type GtkPaperSize) (transfer full): a newly allocated list of newly
|
||
* allocated #GtkPaperSize objects
|
||
*
|
||
* Since: 2.12
|
||
*/
|
||
GList *
|
||
gtk_paper_size_get_paper_sizes (gboolean include_custom)
|
||
{
|
||
GList *list = NULL;
|
||
guint i;
|
||
/* _gtk_load_custom_papers() only on Unix so far */
|
||
#ifdef G_OS_UNIX
|
||
if (include_custom)
|
||
{
|
||
GList *page_setups, *l;
|
||
|
||
page_setups = _gtk_load_custom_papers ();
|
||
for (l = page_setups; l != NULL; l = l->next)
|
||
{
|
||
GtkPageSetup *setup = (GtkPageSetup *) l->data;
|
||
GtkPaperSize *size;
|
||
|
||
size = gtk_page_setup_get_paper_size (setup);
|
||
list = g_list_prepend (list, gtk_paper_size_copy (size));
|
||
}
|
||
|
||
g_list_free_full (page_setups, g_object_unref);
|
||
}
|
||
#endif
|
||
for (i = 0; i < G_N_ELEMENTS (standard_names_offsets); ++i)
|
||
{
|
||
GtkPaperSize *size;
|
||
|
||
size = gtk_paper_size_new_from_info (&standard_names_offsets[i]);
|
||
list = g_list_prepend (list, size);
|
||
}
|
||
|
||
return g_list_reverse (list);
|
||
}
|
||
|
||
|
||
/**
|
||
* gtk_paper_size_get_name:
|
||
* @size: a #GtkPaperSize object
|
||
*
|
||
* Gets the name of the #GtkPaperSize.
|
||
*
|
||
* Return value: the name of @size
|
||
*
|
||
* Since: 2.10
|
||
*/
|
||
const gchar *
|
||
gtk_paper_size_get_name (GtkPaperSize *size)
|
||
{
|
||
if (size->name)
|
||
return size->name;
|
||
g_assert (size->info != NULL);
|
||
return paper_names + size->info->name;
|
||
}
|
||
|
||
/**
|
||
* gtk_paper_size_get_display_name:
|
||
* @size: a #GtkPaperSize object
|
||
*
|
||
* Gets the human-readable name of the #GtkPaperSize.
|
||
*
|
||
* Return value: the human-readable name of @size
|
||
*
|
||
* Since: 2.10
|
||
*/
|
||
const gchar *
|
||
gtk_paper_size_get_display_name (GtkPaperSize *size)
|
||
{
|
||
const gchar *display_name;
|
||
|
||
if (size->display_name)
|
||
return size->display_name;
|
||
|
||
g_assert (size->info != NULL);
|
||
|
||
display_name = paper_names + size->info->display_name;
|
||
return g_dpgettext2 (GETTEXT_PACKAGE, "paper size", display_name);
|
||
}
|
||
|
||
/**
|
||
* gtk_paper_size_get_ppd_name:
|
||
* @size: a #GtkPaperSize object
|
||
*
|
||
* Gets the PPD name of the #GtkPaperSize, which
|
||
* may be %NULL.
|
||
*
|
||
* Return value: the PPD name of @size
|
||
*
|
||
* Since: 2.10
|
||
*/
|
||
const gchar *
|
||
gtk_paper_size_get_ppd_name (GtkPaperSize *size)
|
||
{
|
||
if (size->ppd_name)
|
||
return size->ppd_name;
|
||
if (size->info)
|
||
return paper_names + size->info->ppd_name;
|
||
return NULL;
|
||
}
|
||
|
||
/**
|
||
* gtk_paper_size_get_width:
|
||
* @size: a #GtkPaperSize object
|
||
* @unit: the unit for the return value, not %GTK_UNIT_NONE
|
||
*
|
||
* Gets the paper width of the #GtkPaperSize, in
|
||
* units of @unit.
|
||
*
|
||
* Return value: the paper width
|
||
*
|
||
* Since: 2.10
|
||
*/
|
||
gdouble
|
||
gtk_paper_size_get_width (GtkPaperSize *size,
|
||
GtkUnit unit)
|
||
{
|
||
return _gtk_print_convert_from_mm (size->width, unit);
|
||
}
|
||
|
||
/**
|
||
* gtk_paper_size_get_height:
|
||
* @size: a #GtkPaperSize object
|
||
* @unit: the unit for the return value, not %GTK_UNIT_NONE
|
||
*
|
||
* Gets the paper height of the #GtkPaperSize, in
|
||
* units of @unit.
|
||
*
|
||
* Return value: the paper height
|
||
*
|
||
* Since: 2.10
|
||
*/
|
||
gdouble
|
||
gtk_paper_size_get_height (GtkPaperSize *size,
|
||
GtkUnit unit)
|
||
{
|
||
return _gtk_print_convert_from_mm (size->height, unit);
|
||
}
|
||
|
||
/**
|
||
* gtk_paper_size_is_custom:
|
||
* @size: a #GtkPaperSize object
|
||
*
|
||
* Returns %TRUE if @size is not a standard paper size.
|
||
*
|
||
* Return value: whether @size is a custom paper size.
|
||
**/
|
||
gboolean
|
||
gtk_paper_size_is_custom (GtkPaperSize *size)
|
||
{
|
||
return size->is_custom;
|
||
}
|
||
|
||
/**
|
||
* gtk_paper_size_set_size:
|
||
* @size: a custom #GtkPaperSize object
|
||
* @width: the new width in units of @unit
|
||
* @height: the new height in units of @unit
|
||
* @unit: the unit for @width and @height
|
||
*
|
||
* Changes the dimensions of a @size to @width x @height.
|
||
*
|
||
* Since: 2.10
|
||
*/
|
||
void
|
||
gtk_paper_size_set_size (GtkPaperSize *size,
|
||
gdouble width,
|
||
gdouble height,
|
||
GtkUnit unit)
|
||
{
|
||
g_return_if_fail (size != NULL);
|
||
g_return_if_fail (size->is_custom);
|
||
|
||
size->width = _gtk_print_convert_to_mm (width, unit);
|
||
size->height = _gtk_print_convert_to_mm (height, unit);
|
||
}
|
||
|
||
#define NL_PAPER_GET(x) \
|
||
((union { char *string; unsigned int word; })nl_langinfo(x)).word
|
||
|
||
/**
|
||
* gtk_paper_size_get_default:
|
||
*
|
||
* Returns the name of the default paper size, which
|
||
* depends on the current locale.
|
||
*
|
||
* Return value: the name of the default paper size. The string
|
||
* is owned by GTK+ and should not be modified.
|
||
*
|
||
* Since: 2.10
|
||
*/
|
||
const gchar *
|
||
gtk_paper_size_get_default (void)
|
||
{
|
||
char *locale, *freeme = NULL;
|
||
const char *paper_size;
|
||
|
||
#if defined(HAVE__NL_PAPER_HEIGHT) && defined(HAVE__NL_PAPER_WIDTH)
|
||
{
|
||
int width = NL_PAPER_GET (_NL_PAPER_WIDTH);
|
||
int height = NL_PAPER_GET (_NL_PAPER_HEIGHT);
|
||
|
||
if (width == 210 && height == 297)
|
||
return GTK_PAPER_NAME_A4;
|
||
|
||
if (width == 216 && height == 279)
|
||
return GTK_PAPER_NAME_LETTER;
|
||
}
|
||
#endif
|
||
|
||
#ifdef G_OS_WIN32
|
||
freeme = locale = g_win32_getlocale ();
|
||
#elif defined(LC_PAPER)
|
||
locale = setlocale(LC_PAPER, NULL);
|
||
#else
|
||
locale = setlocale(LC_MESSAGES, NULL);
|
||
#endif
|
||
|
||
if (!locale)
|
||
return GTK_PAPER_NAME_A4;
|
||
|
||
/* CLDR 1.8.1
|
||
* http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/territory_language_information.html
|
||
*/
|
||
if (g_regex_match_simple("[^_.@]{2,3}_(BZ|CA|CL|CO|CR|GT|MX|NI|PA|PH|PR|SV|US|VE)",
|
||
locale, G_REGEX_ANCHORED, G_REGEX_MATCH_ANCHORED))
|
||
paper_size = GTK_PAPER_NAME_LETTER;
|
||
else
|
||
paper_size = GTK_PAPER_NAME_A4;
|
||
|
||
g_free (freeme);
|
||
return paper_size;
|
||
}
|
||
|
||
/* These get the default margins used for the paper size. Its
|
||
* larger than most printers margins, so that it will be within
|
||
* the imageble area on any printer.
|
||
*
|
||
* I’ve taken the actual values used from the OSX page setup dialog.
|
||
* I'm not sure exactly where they got these values for, but might
|
||
* correspond to this (from ghostscript docs):
|
||
*
|
||
* All DeskJets have 0.5 inches (1.27cm) of unprintable bottom margin,
|
||
* due to the mechanical arrangement used to grab the paper. Side margins
|
||
* are approximately 0.25 inches (0.64cm) for U.S. letter paper, and 0.15
|
||
* inches (0.38cm) for A4.
|
||
*/
|
||
|
||
/**
|
||
* gtk_paper_size_get_default_top_margin:
|
||
* @size: a #GtkPaperSize object
|
||
* @unit: the unit for the return value, not %GTK_UNIT_NONE
|
||
*
|
||
* Gets the default top margin for the #GtkPaperSize.
|
||
*
|
||
* Return value: the default top margin
|
||
*
|
||
* Since: 2.10
|
||
*/
|
||
gdouble
|
||
gtk_paper_size_get_default_top_margin (GtkPaperSize *size,
|
||
GtkUnit unit)
|
||
{
|
||
gdouble margin;
|
||
|
||
margin = _gtk_print_convert_to_mm (0.25, GTK_UNIT_INCH);
|
||
return _gtk_print_convert_from_mm (margin, unit);
|
||
}
|
||
|
||
/**
|
||
* gtk_paper_size_get_default_bottom_margin:
|
||
* @size: a #GtkPaperSize object
|
||
* @unit: the unit for the return value, not %GTK_UNIT_NONE
|
||
*
|
||
* Gets the default bottom margin for the #GtkPaperSize.
|
||
*
|
||
* Return value: the default bottom margin
|
||
*
|
||
* Since: 2.10
|
||
*/
|
||
gdouble
|
||
gtk_paper_size_get_default_bottom_margin (GtkPaperSize *size,
|
||
GtkUnit unit)
|
||
{
|
||
gdouble margin;
|
||
const gchar *name;
|
||
|
||
margin = _gtk_print_convert_to_mm (0.25, GTK_UNIT_INCH);
|
||
|
||
name = gtk_paper_size_get_name (size);
|
||
if (strcmp (name, "na_letter") == 0 ||
|
||
strcmp (name, "na_legal") == 0 ||
|
||
strcmp (name, "iso_a4") == 0)
|
||
margin = _gtk_print_convert_to_mm (0.56, GTK_UNIT_INCH);
|
||
|
||
return _gtk_print_convert_from_mm (margin, unit);
|
||
}
|
||
|
||
/**
|
||
* gtk_paper_size_get_default_left_margin:
|
||
* @size: a #GtkPaperSize object
|
||
* @unit: the unit for the return value, not %GTK_UNIT_NONE
|
||
*
|
||
* Gets the default left margin for the #GtkPaperSize.
|
||
*
|
||
* Return value: the default left margin
|
||
*
|
||
* Since: 2.10
|
||
*/
|
||
gdouble
|
||
gtk_paper_size_get_default_left_margin (GtkPaperSize *size,
|
||
GtkUnit unit)
|
||
{
|
||
gdouble margin;
|
||
|
||
margin = _gtk_print_convert_to_mm (0.25, GTK_UNIT_INCH);
|
||
return _gtk_print_convert_from_mm (margin, unit);
|
||
}
|
||
|
||
/**
|
||
* gtk_paper_size_get_default_right_margin:
|
||
* @size: a #GtkPaperSize object
|
||
* @unit: the unit for the return value, not %GTK_UNIT_NONE
|
||
*
|
||
* Gets the default right margin for the #GtkPaperSize.
|
||
*
|
||
* Return value: the default right margin
|
||
*
|
||
* Since: 2.10
|
||
*/
|
||
gdouble
|
||
gtk_paper_size_get_default_right_margin (GtkPaperSize *size,
|
||
GtkUnit unit)
|
||
{
|
||
gdouble margin;
|
||
|
||
margin = _gtk_print_convert_to_mm (0.25, GTK_UNIT_INCH);
|
||
return _gtk_print_convert_from_mm (margin, unit);
|
||
}
|
||
|
||
/**
|
||
* gtk_paper_size_new_from_key_file:
|
||
* @key_file: the #GKeyFile to retrieve the papersize from
|
||
* @group_name: the name ofthe group in the key file to read,
|
||
* or %NULL to read the first group
|
||
* @error: (allow-none): return location for an error, or %NULL
|
||
*
|
||
* Reads a paper size from the group @group_name in the key file
|
||
* @key_file.
|
||
*
|
||
* Returns: a new #GtkPaperSize object with the restored
|
||
* paper size, or %NULL if an error occurred
|
||
*
|
||
* Since: 2.12
|
||
*/
|
||
GtkPaperSize *
|
||
gtk_paper_size_new_from_key_file (GKeyFile *key_file,
|
||
const gchar *group_name,
|
||
GError **error)
|
||
{
|
||
GtkPaperSize *paper_size = NULL;
|
||
gchar *name = NULL;
|
||
gchar *ppd_name = NULL;
|
||
gchar *display_name = NULL;
|
||
gchar *freeme = NULL;
|
||
gdouble width, height;
|
||
GError *err = NULL;
|
||
|
||
g_return_val_if_fail (key_file != NULL, NULL);
|
||
|
||
if (!group_name)
|
||
group_name = freeme = g_key_file_get_start_group (key_file);
|
||
if (!group_name || !g_key_file_has_group (key_file, group_name))
|
||
{
|
||
g_set_error_literal (error,
|
||
GTK_PRINT_ERROR,
|
||
GTK_PRINT_ERROR_INVALID_FILE,
|
||
_("Not a valid page setup file"));
|
||
goto out;
|
||
}
|
||
|
||
#define GET_DOUBLE(kf, group, name, v) \
|
||
v = g_key_file_get_double (kf, group, name, &err); \
|
||
if (err != NULL) \
|
||
{\
|
||
g_propagate_error (error, err);\
|
||
goto out;\
|
||
}
|
||
|
||
GET_DOUBLE (key_file, group_name, "Width", width);
|
||
GET_DOUBLE (key_file, group_name, "Height", height);
|
||
|
||
#undef GET_DOUBLE
|
||
|
||
name = g_key_file_get_string (key_file, group_name,
|
||
"Name", NULL);
|
||
ppd_name = g_key_file_get_string (key_file, group_name,
|
||
"PPDName", NULL);
|
||
display_name = g_key_file_get_string (key_file, group_name,
|
||
"DisplayName", NULL);
|
||
/* Fallback for old ~/.gtk-custom-paper entries */
|
||
if (!display_name)
|
||
display_name = g_strdup (name);
|
||
|
||
if (ppd_name != NULL)
|
||
paper_size = gtk_paper_size_new_from_ppd (ppd_name,
|
||
display_name,
|
||
_gtk_print_convert_from_mm (width, GTK_UNIT_POINTS),
|
||
_gtk_print_convert_from_mm (height, GTK_UNIT_POINTS));
|
||
else if (name != NULL)
|
||
paper_size = gtk_paper_size_new_custom (name, display_name,
|
||
width, height, GTK_UNIT_MM);
|
||
else
|
||
{
|
||
g_set_error_literal (error,
|
||
GTK_PRINT_ERROR,
|
||
GTK_PRINT_ERROR_INVALID_FILE,
|
||
_("Not a valid page setup file"));
|
||
goto out;
|
||
}
|
||
|
||
g_assert (paper_size != NULL);
|
||
|
||
out:
|
||
g_free (ppd_name);
|
||
g_free (name);
|
||
g_free (display_name);
|
||
g_free (freeme);
|
||
|
||
return paper_size;
|
||
}
|
||
|
||
/**
|
||
* gtk_paper_size_to_key_file:
|
||
* @size: a #GtkPaperSize
|
||
* @key_file: the #GKeyFile to save the paper size to
|
||
* @group_name: the group to add the settings to in @key_file
|
||
*
|
||
* This function adds the paper size from @size to @key_file.
|
||
*
|
||
* Since: 2.12
|
||
*/
|
||
void
|
||
gtk_paper_size_to_key_file (GtkPaperSize *size,
|
||
GKeyFile *key_file,
|
||
const gchar *group_name)
|
||
{
|
||
const char *name, *ppd_name, *display_name;
|
||
|
||
g_return_if_fail (size != NULL);
|
||
g_return_if_fail (key_file != NULL);
|
||
|
||
name = gtk_paper_size_get_name (size);
|
||
display_name = gtk_paper_size_get_display_name (size);
|
||
ppd_name = gtk_paper_size_get_ppd_name (size);
|
||
|
||
if (ppd_name != NULL)
|
||
g_key_file_set_string (key_file, group_name,
|
||
"PPDName", ppd_name);
|
||
else
|
||
g_key_file_set_string (key_file, group_name,
|
||
"Name", name);
|
||
|
||
if (display_name)
|
||
g_key_file_set_string (key_file, group_name,
|
||
"DisplayName", display_name);
|
||
|
||
g_key_file_set_double (key_file, group_name,
|
||
"Width", gtk_paper_size_get_width (size, GTK_UNIT_MM));
|
||
g_key_file_set_double (key_file, group_name,
|
||
"Height", gtk_paper_size_get_height (size, GTK_UNIT_MM));
|
||
}
|