85 lines
2.6 KiB
Rust
85 lines
2.6 KiB
Rust
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// Copyright (c) 2023 Sophie Herold
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program 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
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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// SPDX-License-Identifier: GPL-3.0-or-later
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use super::*;
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impl imp::LpImage {
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pub fn set_rotation(&self, rotation: f64) {
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let obj = self.obj();
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if rotation == obj.rotation() {
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return;
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}
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self.rotation.set(rotation);
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obj.notify_rotation();
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obj.queue_draw();
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}
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pub(super) fn set_mirrored(&self, mirrored: bool) {
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let obj = self.obj();
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if mirrored == obj.mirrored() {
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return;
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}
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self.mirrored.set(mirrored);
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obj.notify_mirrored();
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obj.queue_draw();
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}
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}
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impl LpImage {
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/// Set rotation and mirroring to the state would have after loading
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pub fn reset_rotation(&self) {
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let orientation = self.metadata().orientation();
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self.imp().rotation_target.set(-orientation.rotation);
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self.set_mirrored(orientation.mirrored);
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self.set_rotation(-orientation.rotation);
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}
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pub fn rotate_by(&self, angle: f64) {
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log::debug!("Rotate by {} degrees", angle);
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let target = &self.imp().rotation_target;
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target.set(target.get() + angle);
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let animation = self.rotation_animation();
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animation.set_value_from(self.rotation());
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animation.set_value_to(target.get());
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animation.play();
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if self.is_best_fit() {
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let animation = self.zoom_animation();
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animation.set_value_from(self.zoom());
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animation.set_value_to(self.zoom_level_best_fit_for_rotation(target.get()));
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animation.play();
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}
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}
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pub(super) fn rotation_animation(&self) -> &adw::TimedAnimation {
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self.imp().rotation_animation.get_or_init(|| {
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adw::TimedAnimation::builder()
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.duration(ROTATION_ANIMATION_DURATION)
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.widget(self)
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.target(&adw::PropertyAnimationTarget::new(self, "rotation"))
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.build()
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})
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}
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}
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