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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:24:48 +0000 |
commit | cca66b9ec4e494c1d919bff0f71a820d8afab1fa (patch) | |
tree | 146f39ded1c938019e1ed42d30923c2ac9e86789 /src/ui/widget/unit-menu.cpp | |
parent | Initial commit. (diff) | |
download | inkscape-upstream.tar.xz inkscape-upstream.zip |
Adding upstream version 1.2.2.upstream/1.2.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/ui/widget/unit-menu.cpp | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/src/ui/widget/unit-menu.cpp b/src/ui/widget/unit-menu.cpp new file mode 100644 index 0000000..a0ae163 --- /dev/null +++ b/src/ui/widget/unit-menu.cpp @@ -0,0 +1,152 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Author: + * Bryce Harrington <bryce@bryceharrington.org> + * + * Copyright (C) 2004 Bryce Harrington + * + * Released under GNU GPL v2+, read the file 'COPYING' for more information. + */ + +#include <cmath> + +#include "unit-menu.h" + +using Inkscape::Util::unit_table; + +namespace Inkscape { +namespace UI { +namespace Widget { + +UnitMenu::UnitMenu() : _type(UNIT_TYPE_NONE) +{ + set_active(0); + add_events(Gdk::SCROLL_MASK | Gdk::SMOOTH_SCROLL_MASK); + signal_scroll_event().connect([](GdkEventScroll*){ return false; }); +} + +UnitMenu::~UnitMenu() = default; + +bool UnitMenu::setUnitType(UnitType unit_type) +{ + // Expand the unit widget with unit entries from the unit table + UnitTable::UnitMap m = unit_table.units(unit_type); + + for (auto & i : m) { + append(i.first); + } + _type = unit_type; + set_active_text(unit_table.primary(unit_type)); + + return true; +} + +bool UnitMenu::resetUnitType(UnitType unit_type) +{ + remove_all(); + + return setUnitType(unit_type); +} + +void UnitMenu::addUnit(Unit const& u) +{ + unit_table.addUnit(u, false); + append(u.abbr); +} + +Unit const * UnitMenu::getUnit() const +{ + if (get_active_text() == "") { + g_assert(_type != UNIT_TYPE_NONE); + return unit_table.getUnit(unit_table.primary(_type)); + } + return unit_table.getUnit(get_active_text()); +} + +bool UnitMenu::setUnit(Glib::ustring const & unit) +{ + // TODO: Determine if 'unit' is available in the dropdown. + // If not, return false + + set_active_text(unit); + return true; +} + +Glib::ustring UnitMenu::getUnitAbbr() const +{ + if (get_active_text() == "") { + return ""; + } + return getUnit()->abbr; +} + +UnitType UnitMenu::getUnitType() const +{ + return getUnit()->type; +} + +double UnitMenu::getUnitFactor() const +{ + return getUnit()->factor; +} + +int UnitMenu::getDefaultDigits() const +{ + return getUnit()->defaultDigits(); +} + +double UnitMenu::getDefaultStep() const +{ + int factor_digits = -1*int(log10(getUnit()->factor)); + return pow(10.0, factor_digits); +} + +double UnitMenu::getDefaultPage() const +{ + return 10 * getDefaultStep(); +} + +double UnitMenu::getConversion(Glib::ustring const &new_unit_abbr, Glib::ustring const &old_unit_abbr) const +{ + double old_factor = getUnit()->factor; + if (old_unit_abbr != "no_unit") { + old_factor = unit_table.getUnit(old_unit_abbr)->factor; + } + Unit const * new_unit = unit_table.getUnit(new_unit_abbr); + + // Catch the case of zero or negative unit factors (error!) + if (old_factor < 0.0000001 || + new_unit->factor < 0.0000001) { + // TODO: Should we assert here? + return 0.00; + } + + return old_factor / new_unit->factor; +} + +bool UnitMenu::isAbsolute() const +{ + return getUnitType() != UNIT_TYPE_DIMENSIONLESS; +} + +bool UnitMenu::isRadial() const +{ + return getUnitType() == UNIT_TYPE_RADIAL; +} + +bool UnitMenu::on_scroll_event(GdkEventScroll *event) { return false; } + +} // namespace Widget +} // namespace UI +} // 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 : |