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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Inkscape PaperSize
*
* Authors:
* Bob Jamison (2006)
* Martin Owens (2021)
*
* Copyright (C) 2021 AUTHORS
*
* Released under GNU GPL v2+, read the file 'COPYING' for more information.
*/
#include <glibmm/i18n.h>
#include "paper.h"
#include "pages-skeleton.h"
#include "io/resource.h"
namespace Inkscape {
/**
* Returns a list of page sizes.
*/
const std::vector<PaperSize>& PaperSize::getPageSizes()
{
// Static makes us only load pages once.
static std::vector<PaperSize> ret;
if (!ret.empty())
return ret;
char *path = Inkscape::IO::Resource::profile_path("pages.csv");
if (!g_file_test(path, G_FILE_TEST_EXISTS)) {
if (!g_file_set_contents(path, pages_skeleton, -1, nullptr)) {
g_warning("%s", _("Failed to create the page file."));
}
}
gchar *content = nullptr;
if (g_file_get_contents(path, &content, nullptr, nullptr)) {
gchar **lines = g_strsplit_set(content, "\n", 0);
for (int i = 0; lines && lines[i]; ++i) {
gchar **line = g_strsplit_set(lines[i], ",", 5);
if (!line[0] || !line[1] || !line[2] || !line[3] || line[0][0]=='#')
continue;
//name, width, height, unit
double width = g_ascii_strtod(line[1], nullptr);
double height = g_ascii_strtod(line[2], nullptr);
g_strstrip(line[0]);
g_strstrip(line[3]);
Glib::ustring name = line[0];
ret.push_back(PaperSize(name, width, height, Inkscape::Util::unit_table.getUnit(line[3])));
}
g_strfreev(lines);
g_free(content);
}
g_free(path);
return ret;
}
PaperSize::PaperSize()
: name("")
, width(0.0)
, height(0.0)
{
unit = Inkscape::Util::unit_table.getUnit("px");
}
PaperSize::PaperSize(std::string name, double width, double height, Inkscape::Util::Unit const *unit)
: name(std::move(name))
, width(width)
, height(height)
, unit(unit)
{}
std::string PaperSize::getDescription(bool landscape) const {
return toDescription(name, size[landscape], size[!landscape], unit);
}
std::string PaperSize::toDescription(std::string name, double x, double y, Inkscape::Util::Unit const *unit)
{
return name + " (" + formatNumber(x) + " x " + formatNumber(y) + " " + unit->abbr + ")";
}
std::string PaperSize::formatNumber(double val)
{
char buf[20];
snprintf(buf, 19, "%0.1f", val);
auto ret = std::string(buf);
// C++ doesn't provide a good number formatting control, so hack off trailing zeros.
if ((ret.length() > 2) && (ret.back() == '0')) {
ret = ret.substr(0, ret.length() - 2);
}
return ret;
}
void PaperSize::assign(const PaperSize &other)
{
name = other.name;
width = other.width;
height = other.height;
auto [smaller, larger] = std::minmax(width, height);
size = Geom::Point(smaller, larger);
unit = other.unit;
}
/**
* Returns a matching paper size, if possible.
*/
const PaperSize *PaperSize::findPaperSize(double width, double height, Inkscape::Util::Unit const *unit)
{
auto [smaller, larger] = std::minmax(width, height);
auto size = Geom::Point(smaller, larger);
auto px = Inkscape::Util::unit_table.getUnit("px");
for (auto&& page_size : Inkscape::PaperSize::getPageSizes()) {
auto cmp = Geom::Point(
unit->convert(size[0], page_size.unit),
unit->convert(size[1], page_size.unit)
);
// We want a half a pixel tollerance to catch floating point errors
auto tollerance = px->convert(0.5, page_size.unit);
if (Geom::are_near(page_size.size, cmp, tollerance)) {
return &page_size;
}
}
return nullptr;
}
} // namespace Inkscape
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
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