1049 lines
34 KiB
Rust
1049 lines
34 KiB
Rust
// Copyright (c) 2024-2025 Sophie Herold
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// Copyright (c) 2025 Hubert Figuière
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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 std::cell::{Cell, OnceCell};
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use adw::gtk::graphene;
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use adw::prelude::*;
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use adw::subclass::prelude::*;
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use adw::{glib, gtk};
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use super::crop::{LpAspectRatio, LpEditCrop, LpOrientation};
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use crate::deps::*;
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use crate::widgets::LpImage;
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const MIN_SELECTION_SIZE: f32 = 80.;
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#[derive(Debug, Clone, Copy)]
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struct InResize {
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corner: Corner,
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initial_selection: graphene::Rect,
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}
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#[derive(Debug, Clone, Copy)]
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struct InMove {
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initial_selection: graphene::Rect,
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}
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#[derive(Debug, Clone, Copy)]
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enum Corner {
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TopLeft,
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Top,
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TopRight,
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Right,
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BottomRight,
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Bottom,
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BottomLeft,
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Left,
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}
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#[derive(Debug, Clone, Copy)]
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enum HEdge {
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Left,
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Right,
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}
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#[derive(Debug, Clone, Copy)]
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enum VEdge {
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Top,
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Bottom,
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}
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impl Corner {
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fn cursor_name(&self) -> &str {
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match self {
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Self::TopLeft => "nw-resize",
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Self::Top => "n-resize",
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Self::TopRight => "ne-resize",
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Self::Right => "e-resize",
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Self::BottomRight => "se-resize",
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Self::Bottom => "s-resize",
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Self::BottomLeft => "sw-resize",
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Self::Left => "w-resize",
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}
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}
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fn h_edge(&self) -> Option<HEdge> {
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match self {
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Self::TopLeft => Some(HEdge::Left),
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Self::Top => None,
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Self::TopRight => Some(HEdge::Right),
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Self::Right => Some(HEdge::Right),
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Self::BottomRight => Some(HEdge::Right),
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Self::Bottom => None,
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Self::BottomLeft => Some(HEdge::Left),
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Self::Left => Some(HEdge::Left),
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}
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}
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fn v_edge(&self) -> Option<VEdge> {
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match self {
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Self::TopLeft => Some(VEdge::Top),
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Self::Top => Some(VEdge::Top),
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Self::TopRight => Some(VEdge::Top),
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Self::Right => None,
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Self::BottomRight => Some(VEdge::Bottom),
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Self::Bottom => Some(VEdge::Bottom),
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Self::BottomLeft => Some(VEdge::Bottom),
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Self::Left => None,
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}
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}
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}
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impl LpAspectRatio {
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fn frac(&self) -> Option<(u32, u32)> {
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match self {
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Self::Free => None,
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Self::Original => None,
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Self::Square => Some((1, 1)),
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Self::R5to4 => Some((5, 4)),
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Self::R4to3 => Some((4, 3)),
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Self::R3to2 => Some((3, 2)),
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Self::R16to9 => Some((16, 9)),
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}
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}
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fn num(&self, crop: &LpEditCropSelection) -> Option<f32> {
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let (x, y) = if matches!(self, Self::Original) {
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let (width, height) = crop.image().image_size();
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let (width, height) = (width as u32, height as u32);
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if width > height {
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(width, height)
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} else {
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(height, width)
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}
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} else {
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self.frac()?
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};
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let result = match crop.orientation() {
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LpOrientation::Landscape => x as f32 / y as f32,
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LpOrientation::Portrait => y as f32 / x as f32,
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};
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Some(result)
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}
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}
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trait RectExt: Into<graphene::Rect> {
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fn coordinates(self) -> (f32, f32, f32, f32) {
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let rect: graphene::Rect = self.into();
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(rect.x(), rect.y(), rect.width(), rect.height())
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}
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}
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impl RectExt for graphene::Rect {}
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mod imp {
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use super::*;
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use crate::widgets::LpImage;
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#[derive(Debug, Default, gtk::CompositeTemplate, glib::Properties)]
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#[properties(wrapper_type = super::LpEditCropSelection)]
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#[template(file = "crop_selection.ui")]
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pub struct LpEditCropSelection {
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#[template_child]
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pub(super) space_top: TemplateChild<adw::Bin>,
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#[template_child]
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pub(super) space_right: TemplateChild<adw::Bin>,
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#[template_child]
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pub(super) space_bottom: TemplateChild<adw::Bin>,
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#[template_child]
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pub(super) space_left: TemplateChild<adw::Bin>,
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#[template_child]
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pub(super) selection: TemplateChild<gtk::Grid>,
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#[template_child]
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handle_top_left: TemplateChild<adw::Bin>,
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#[template_child]
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handle_top: TemplateChild<adw::Bin>,
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#[template_child]
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handle_top_right: TemplateChild<adw::Bin>,
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#[template_child]
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handle_right: TemplateChild<adw::Bin>,
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#[template_child]
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handle_bottom_right: TemplateChild<adw::Bin>,
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#[template_child]
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handle_bottom: TemplateChild<adw::Bin>,
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#[template_child]
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handle_bottom_left: TemplateChild<adw::Bin>,
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#[template_child]
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handle_left: TemplateChild<adw::Bin>,
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#[template_child]
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apply_button: TemplateChild<gtk::Button>,
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#[template_child]
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selection_move: TemplateChild<gtk::GestureDrag>,
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#[template_child]
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selection_overlay: TemplateChild<gtk::Overlay>,
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/// Set while in drag gesture for changing crop area
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pub(super) selection_in_resize: Cell<Option<InResize>>,
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/// Set while in drag gesture for moving crop area
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pub(super) selection_in_move: Cell<Option<InMove>>,
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/// Set while resetting the crop area
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pub(super) selection_in_reset: Cell<bool>,
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// Animates changes between different fixed aspect ratios
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aspect_ratio_animation: OnceCell<adw::TimedAnimation>,
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#[property(get, set=Self::set_aspect_ratio, builder(LpAspectRatio::default()))]
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aspect_ratio: Cell<LpAspectRatio>,
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#[property(get, set=Self::set_orientation, builder(LpOrientation::default()))]
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orientation: Cell<LpOrientation>,
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/// Last selected crop area
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crop_area_image_coord: Cell<Option<(u32, u32, u32, u32)>>,
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#[property(get, set=Self::set_crop_x, explicit_notify)]
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crop_x: Cell<f32>,
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#[property(get, set=Self::set_crop_y, explicit_notify)]
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crop_y: Cell<f32>,
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#[property(get, set=Self::set_crop_width, explicit_notify)]
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crop_width: Cell<f32>,
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#[property(get, set=Self::set_crop_height, explicit_notify)]
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crop_height: Cell<f32>,
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}
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#[glib::object_subclass]
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impl ObjectSubclass for LpEditCropSelection {
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const NAME: &'static str = "LpEditCropSelection";
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type Type = super::LpEditCropSelection;
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type ParentType = gtk::Widget;
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fn class_init(klass: &mut Self::Class) {
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Self::bind_template(klass);
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klass.set_css_name("lpcrop");
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klass.install_property_action("edit-crop.aspect-ratio", "aspect_ratio");
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klass.install_property_action("edit-crop.orientation", "orientation");
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}
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fn instance_init(obj: &glib::subclass::InitializingObject<Self>) {
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obj.init_template();
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}
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}
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#[glib::derived_properties]
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impl ObjectImpl for LpEditCropSelection {
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fn constructed(&self) {
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self.parent_constructed();
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let obj = self.obj().to_owned();
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obj.set_direction(gtk::TextDirection::Ltr);
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self.selection.set_direction(gtk::TextDirection::Ltr);
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self.handle_bottom_left
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.set_direction(gtk::TextDirection::Ltr);
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self.handle_bottom_right
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.set_direction(gtk::TextDirection::Ltr);
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self.handle_top_left.set_direction(gtk::TextDirection::Ltr);
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self.handle_top_right.set_direction(gtk::TextDirection::Ltr);
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// List of widgets that are drag handles
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let drag_corners = std::collections::BTreeMap::from([
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(self.handle_top_left.clone(), Corner::TopLeft),
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(self.handle_top.clone(), Corner::Top),
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(self.handle_top_right.clone(), Corner::TopRight),
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(self.handle_right.clone(), Corner::Right),
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(self.handle_bottom_right.clone(), Corner::BottomRight),
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(self.handle_bottom.clone(), Corner::Bottom),
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(self.handle_bottom_left.clone(), Corner::BottomLeft),
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(self.handle_left.clone(), Corner::Left),
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]);
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// Set cursor style for each corner
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for (handle_widget, corner) in drag_corners.iter() {
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handle_widget.set_cursor_from_name(Some(corner.cursor_name()));
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}
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self.selection.set_cursor_from_name(Some("move"));
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self.apply_button.set_cursor_from_name(Some("default"));
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// Drag begin
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self.selection_move.connect_drag_begin(glib::clone!(
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#[weak]
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obj,
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move |gesture, _, _| {
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let imp = obj.imp();
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imp.aspect_ratio_animation().pause();
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let hovered_widget = gesture
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.start_point()
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.and_then(|(x, y)| obj.pick(x, y, gtk::PickFlags::DEFAULT));
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// Lookup if the start-point of the gesture is above a drag handle widget and
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// what corner it is
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if let Some(corner) = hovered_widget
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.as_ref()
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.and_then(|x| drag_corners.get(x).copied())
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{
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gesture.set_state(gtk::EventSequenceState::Claimed);
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let crop_area = imp.crop_area();
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imp.set_selection_in_resize(Some(InResize {
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corner,
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initial_selection: crop_area,
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}));
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} else if hovered_widget.is_some_and(|x| x == *imp.selection) {
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gesture.set_state(gtk::EventSequenceState::Claimed);
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let crop_area = imp.crop_area();
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imp.set_selection_in_move(Some(InMove {
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initial_selection: crop_area,
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}));
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} else {
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gesture.set_state(gtk::EventSequenceState::Denied);
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return;
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}
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}
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));
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// Drag moved
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self.selection_move.connect_drag_update(glib::clone!(
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#[weak]
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obj,
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move |_, x, y| {
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let imp = obj.imp();
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imp.aspect_ratio_animation().pause();
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if let Some(in_move) = imp.selection_in_move.get() {
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let moved_area = imp.moved_crop_area(&in_move, (x, y));
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imp.set_crop(moved_area);
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} else if let Some(drag) = imp.selection_in_resize.get() {
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let coord = (x, y);
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let new_area = if let Some(aspect_ratio) = imp.aspect_ratio() {
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let u =
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imp.new_crop_area_aspect_ratio(&drag, true, coord, aspect_ratio);
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let v =
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imp.new_crop_area_aspect_ratio(&drag, false, coord, aspect_ratio);
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if u.area() > v.area() {
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u
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} else {
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v
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}
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} else {
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imp.new_crop_area_aspect_free(&drag, coord)
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};
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imp.set_crop(new_area);
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}
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}
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));
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// Drag finished
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self.selection_move.connect_drag_end(glib::clone!(
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#[weak]
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obj,
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move |_, _, _| {
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obj.imp().set_selection_in_resize(None);
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obj.imp().set_selection_in_move(None);
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}
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));
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}
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fn dispose(&self) {
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let obj = self.obj();
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while let Some(child) = obj.last_child() {
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child.unparent();
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}
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}
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}
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impl WidgetImpl for LpEditCropSelection {
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fn size_allocate(&self, _width: i32, _height: i32, _baseline: i32) {
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let total_x = self.total_x() as f32;
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let total_y = self.total_y() as f32;
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let total_height = self.total_height();
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let total_width: i32 = self.total_width();
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let (x, y, width, height) = self.crop_area_widget_coord();
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self.crop_x.set(x);
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self.crop_y.set(y);
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self.crop_width.set(width);
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self.crop_height.set(height);
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// Selection area
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self.selection_overlay.allocate(
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width as i32,
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height as i32,
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-1,
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Some(
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gsk::Transform::new()
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.translate(&graphene::Point::new(x + total_x, y + total_y)),
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),
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);
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// Grayed out areas
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self.space_top.allocate(
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total_width,
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y as i32,
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-1,
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Some(gsk::Transform::new().translate(&graphene::Point::new(total_x, total_y))),
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);
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self.space_right.allocate(
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total_width - x as i32 - width as i32,
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height as i32,
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-1,
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Some(
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gsk::Transform::new()
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.translate(&graphene::Point::new(x + width + total_x, y + total_y)),
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),
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);
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self.space_bottom.allocate(
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total_width,
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total_height - y as i32 - height as i32,
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-1,
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Some(
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gsk::Transform::new()
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.translate(&graphene::Point::new(total_x, y + height + total_y)),
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),
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);
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self.space_left.allocate(
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x as i32,
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height as i32,
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-1,
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Some(gsk::Transform::new().translate(&graphene::Point::new(total_x, y + total_y))),
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);
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}
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}
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impl GridImpl for LpEditCropSelection {}
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impl LpEditCropSelection {
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/// Current crop area
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fn crop_area(&self) -> graphene::Rect {
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let obj = self.obj();
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graphene::Rect::new(
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obj.crop_x(),
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obj.crop_y(),
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obj.crop_width(),
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obj.crop_height(),
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)
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}
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fn new_crop_area(&self, resize: &InResize, (x, y): (f64, f64)) -> graphene::Rect {
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let (x_offset, width_offset) = match resize.corner.h_edge() {
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// Change the crop x position and reduce width accordingly
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Some(HEdge::Left) => (x, -x),
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// Just change the crop width
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Some(HEdge::Right) => (0., x),
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// Don't change
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None => (0., 0.),
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};
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let (y_offset, height_offset) = match resize.corner.v_edge() {
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Some(VEdge::Top) => (y, -y),
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Some(VEdge::Bottom) => (0., y),
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None => (0., 0.),
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};
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let mut x = resize.initial_selection.x() + x_offset as f32;
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let mut y = resize.initial_selection.y() + y_offset as f32;
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let mut width = resize.initial_selection.width() + width_offset as f32;
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let mut height = resize.initial_selection.height() + height_offset as f32;
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if width < 0. {
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if matches!(resize.corner.h_edge(), Some(HEdge::Left)) {
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x += width;
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}
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width = 0.;
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}
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if height < 0. {
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if matches!(resize.corner.v_edge(), Some(VEdge::Top)) {
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y += height;
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}
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height = 0.;
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}
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graphene::Rect::new(x, y, width, height)
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}
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fn moved_crop_area(
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&self,
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shift: &InMove,
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(x_shift, y_shift): (f64, f64),
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) -> graphene::Rect {
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let (mut x, mut y, width, height) = shift.initial_selection.coordinates();
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x += x_shift as f32;
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y += y_shift as f32;
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if x < 0. {
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x = 0.;
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}
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if y < 0. {
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y = 0.;
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}
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if x + width > self.total_width() as f32 {
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x = self.total_width() as f32 - width;
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}
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if y + height > self.total_height() as f32 {
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y = self.total_height() as f32 - height;
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}
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graphene::Rect::new(x, y, width, height)
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}
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fn new_crop_area_aspect_free(
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&self,
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resize: &InResize,
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(x, y): (f64, f64),
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) -> graphene::Rect {
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let (mut x, mut y, mut width, mut height) =
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self.new_crop_area(resize, (x, y)).coordinates();
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|
|
if width < MIN_SELECTION_SIZE {
|
|
let x_diff = width - MIN_SELECTION_SIZE;
|
|
width = MIN_SELECTION_SIZE;
|
|
|
|
if matches!(resize.corner.h_edge(), Some(HEdge::Left)) {
|
|
x += x_diff;
|
|
}
|
|
}
|
|
|
|
if height < MIN_SELECTION_SIZE {
|
|
let y_diff = height - MIN_SELECTION_SIZE;
|
|
height = MIN_SELECTION_SIZE;
|
|
|
|
if matches!(resize.corner.v_edge(), Some(VEdge::Top)) {
|
|
y += y_diff;
|
|
}
|
|
}
|
|
|
|
if x < 0. {
|
|
width += x;
|
|
x = 0.;
|
|
}
|
|
|
|
if y < 0. {
|
|
height += y;
|
|
y = 0.;
|
|
}
|
|
|
|
if x + width > self.total_width() as f32 {
|
|
width = self.total_width() as f32 - x;
|
|
}
|
|
|
|
if y + height > self.total_height() as f32 {
|
|
height = self.total_height() as f32 - y;
|
|
}
|
|
|
|
graphene::Rect::new(x, y, width, height)
|
|
}
|
|
|
|
fn new_crop_area_aspect_ratio(
|
|
&self,
|
|
resize: &InResize,
|
|
vertical: bool,
|
|
(x, y): (f64, f64),
|
|
aspect_ratio: f32,
|
|
) -> graphene::Rect {
|
|
let new_area = self.new_crop_area(resize, (x, y));
|
|
|
|
let (mut x, mut y, mut width, mut height) = new_area.coordinates();
|
|
|
|
if vertical {
|
|
width = new_area.height() * aspect_ratio;
|
|
if matches!(resize.corner.h_edge(), Some(HEdge::Left)) {
|
|
x += new_area.width() - width;
|
|
}
|
|
} else {
|
|
height = new_area.width() / aspect_ratio;
|
|
if matches!(resize.corner.v_edge(), Some(VEdge::Top)) {
|
|
y += new_area.height() - height;
|
|
}
|
|
}
|
|
|
|
let mut rect = graphene::Rect::new(x, y, width, height);
|
|
|
|
self.rect_limit_top(&mut rect, aspect_ratio, resize.corner.v_edge());
|
|
self.rect_limit_left(&mut rect, aspect_ratio, resize.corner.h_edge());
|
|
self.rect_limit_bottom(&mut rect, aspect_ratio, resize.corner.h_edge());
|
|
self.rect_limit_right(&mut rect, aspect_ratio, resize.corner.v_edge());
|
|
|
|
self.rect_limit_minumum_size(&mut rect, aspect_ratio, resize.corner);
|
|
|
|
(x, y, width, height) = rect.coordinates();
|
|
graphene::Rect::new(x, y, width, height)
|
|
}
|
|
|
|
/// Ensure selection is not smaller than minimum size
|
|
fn rect_limit_minumum_size(
|
|
&self,
|
|
rect: &mut graphene::Rect,
|
|
aspect_ratio: f32,
|
|
corner: Corner,
|
|
) {
|
|
let (mut x, mut y, mut width, mut height) = rect.coordinates();
|
|
|
|
if width < MIN_SELECTION_SIZE {
|
|
let x_diff = width - MIN_SELECTION_SIZE;
|
|
width = MIN_SELECTION_SIZE;
|
|
let y_diff = height - MIN_SELECTION_SIZE / aspect_ratio;
|
|
height = MIN_SELECTION_SIZE / aspect_ratio;
|
|
|
|
if matches!(corner.v_edge(), Some(VEdge::Top)) {
|
|
y += y_diff;
|
|
}
|
|
if matches!(corner.h_edge(), Some(HEdge::Left)) {
|
|
x += x_diff;
|
|
}
|
|
}
|
|
|
|
if height < MIN_SELECTION_SIZE {
|
|
let x_diff = width - MIN_SELECTION_SIZE * aspect_ratio;
|
|
width = MIN_SELECTION_SIZE * aspect_ratio;
|
|
let y_diff = height - MIN_SELECTION_SIZE;
|
|
height = MIN_SELECTION_SIZE;
|
|
|
|
if matches!(corner.v_edge(), Some(VEdge::Top)) {
|
|
y += y_diff;
|
|
}
|
|
if matches!(corner.h_edge(), Some(HEdge::Left)) {
|
|
x += x_diff;
|
|
}
|
|
}
|
|
|
|
*rect = graphene::Rect::new(x, y, width, height);
|
|
}
|
|
|
|
/// Make sure Rect is inside image area by moving it if necessary
|
|
fn rect_make_contained(&self, rect: &mut graphene::Rect) {
|
|
let (mut x, mut y, width, height) = rect.coordinates();
|
|
|
|
if x + width > self.total_width() as f32 {
|
|
x = self.total_width() as f32 - width;
|
|
}
|
|
|
|
if y + height > self.total_height() as f32 {
|
|
y = self.total_height() as f32 - height;
|
|
}
|
|
|
|
*rect = graphene::Rect::new(x, y, width, height);
|
|
}
|
|
|
|
/// Limit Rect to not leave image area to the left
|
|
fn rect_limit_top(
|
|
&self,
|
|
rect: &mut graphene::Rect,
|
|
aspect_ratio: f32,
|
|
edge: Option<VEdge>,
|
|
) {
|
|
let (mut x, mut y, mut width, mut height) = rect.coordinates();
|
|
|
|
if x < 0. {
|
|
width += x;
|
|
x = 0.;
|
|
let old_height = height;
|
|
height = width / aspect_ratio;
|
|
if matches!(edge, Some(VEdge::Top)) {
|
|
y += old_height - height;
|
|
}
|
|
}
|
|
|
|
*rect = graphene::Rect::new(x, y, width, height);
|
|
}
|
|
|
|
/// Limit Rect to not leave image area at to the left
|
|
fn rect_limit_left(
|
|
&self,
|
|
rect: &mut graphene::Rect,
|
|
aspect_ratio: f32,
|
|
edge: Option<HEdge>,
|
|
) {
|
|
let (mut x, mut y, mut width, mut height) = rect.coordinates();
|
|
|
|
if y < 0. {
|
|
height += y;
|
|
y = 0.;
|
|
let old_width = width;
|
|
width = height * aspect_ratio;
|
|
|
|
if matches!(edge, Some(HEdge::Left)) {
|
|
x += old_width - width;
|
|
}
|
|
|
|
*rect = graphene::Rect::new(x, y, width, height);
|
|
}
|
|
}
|
|
|
|
/// Limit Rect to not leave image area at the bottom
|
|
fn rect_limit_bottom(
|
|
&self,
|
|
rect: &mut graphene::Rect,
|
|
aspect_ratio: f32,
|
|
edge: Option<HEdge>,
|
|
) {
|
|
let (mut x, y, mut width, mut height) = rect.coordinates();
|
|
|
|
if y + height > self.total_height() as f32 {
|
|
let overshoot = y + height - self.total_height() as f32;
|
|
|
|
height -= overshoot;
|
|
let old_width = width;
|
|
width = height * aspect_ratio;
|
|
|
|
if matches!(edge, Some(HEdge::Left)) {
|
|
x += old_width - width;
|
|
}
|
|
|
|
*rect = graphene::Rect::new(x, y, width, height);
|
|
}
|
|
}
|
|
|
|
fn rect_limit_right(
|
|
&self,
|
|
rect: &mut graphene::Rect,
|
|
aspect_ratio: f32,
|
|
edge: Option<VEdge>,
|
|
) {
|
|
let (x, mut y, mut width, mut height) = rect.coordinates();
|
|
|
|
if x + width > self.total_width() as f32 {
|
|
let overshoot = x + width - self.total_width() as f32;
|
|
|
|
width -= overshoot;
|
|
let old_height = height;
|
|
height = width / aspect_ratio;
|
|
|
|
if matches!(edge, Some(VEdge::Top)) {
|
|
y += old_height - height;
|
|
}
|
|
|
|
*rect = graphene::Rect::new(x, y, width, height);
|
|
}
|
|
}
|
|
|
|
pub(super) fn aspect_ratio_changed(&self) {
|
|
let Some(aspect_ratio) = self.aspect_ratio() else {
|
|
return;
|
|
};
|
|
|
|
let obj = self.obj();
|
|
|
|
// Store current state as reference for animation
|
|
let current_area = self.crop_area();
|
|
let (_, y, _, height) = current_area.coordinates();
|
|
|
|
let width = current_area.height() * aspect_ratio;
|
|
let x = f32::max(0., current_area.x() + (current_area.width() - width) / 2.);
|
|
|
|
let mut new_area = graphene::Rect::new(x, y, width, height);
|
|
|
|
self.rect_limit_top(&mut new_area, aspect_ratio, Some(VEdge::Bottom));
|
|
self.rect_limit_left(&mut new_area, aspect_ratio, Some(HEdge::Right));
|
|
self.rect_limit_bottom(&mut new_area, aspect_ratio, Some(HEdge::Left));
|
|
self.rect_limit_right(&mut new_area, aspect_ratio, Some(VEdge::Top));
|
|
|
|
self.rect_limit_minumum_size(&mut new_area, aspect_ratio, Corner::BottomLeft);
|
|
|
|
self.rect_make_contained(&mut new_area);
|
|
|
|
self.aspect_ratio_animation()
|
|
.set_target(&adw::CallbackAnimationTarget::new(glib::clone!(
|
|
#[weak]
|
|
obj,
|
|
move |progress| {
|
|
let imp = obj.imp();
|
|
|
|
// Linear interpolate between old and target value
|
|
imp.set_crop(current_area.interpolate(&new_area, progress));
|
|
}
|
|
)));
|
|
|
|
self.aspect_ratio_animation().play();
|
|
}
|
|
|
|
/// Fixed aspect ratio of selection if set
|
|
fn aspect_ratio(&self) -> Option<f32> {
|
|
self.obj().aspect_ratio().num(&self.obj())
|
|
}
|
|
|
|
/// Set all coordinates of crop selection
|
|
fn set_crop(&self, rect: graphene::Rect) {
|
|
let rect = rect.round_extents();
|
|
|
|
self.set_crop_x(rect.x());
|
|
self.set_crop_y(rect.y());
|
|
self.set_crop_width(rect.width());
|
|
self.set_crop_height(rect.height());
|
|
}
|
|
|
|
/// Set x coordinate of crop selection rectangle origin
|
|
pub(super) fn set_crop_x(&self, x: f32) {
|
|
if x < 0. {
|
|
log::error!("Tried to set x coordinate to {x}");
|
|
return;
|
|
}
|
|
|
|
let obj = self.obj();
|
|
|
|
self.crop_x.set(x);
|
|
|
|
obj.notify_crop_x();
|
|
self.update_crop_area_image_coord();
|
|
|
|
self.update_apply_crop_visibility();
|
|
self.obj().queue_allocate();
|
|
}
|
|
|
|
/// Set y coordinate of crop selection rectangle origin
|
|
pub(super) fn set_crop_y(&self, y: f32) {
|
|
if y < 0. {
|
|
log::error!("Tried to set y coordinate to {y}");
|
|
return;
|
|
}
|
|
|
|
let obj = self.obj();
|
|
|
|
self.crop_y.set(y);
|
|
self.update_crop_area_image_coord();
|
|
|
|
obj.notify_crop_y();
|
|
self.update_apply_crop_visibility();
|
|
self.obj().queue_allocate();
|
|
}
|
|
|
|
/// Set width of crop selection rectangle
|
|
pub(super) fn set_crop_width(&self, width: f32) {
|
|
if width < 0. {
|
|
eprintln!("Tried to set width to {width}");
|
|
return;
|
|
}
|
|
|
|
self.crop_width.set(width);
|
|
self.update_crop_area_image_coord();
|
|
|
|
self.obj().notify_crop_width();
|
|
self.update_apply_crop_visibility();
|
|
self.obj().queue_allocate();
|
|
}
|
|
|
|
/// Set height of crop selection rectangle
|
|
pub(super) fn set_crop_height(&self, height: f32) {
|
|
if height < 0. {
|
|
eprintln!("Tried to set height to {height}");
|
|
return;
|
|
}
|
|
|
|
self.crop_height.set(height);
|
|
self.update_crop_area_image_coord();
|
|
|
|
self.obj().notify_crop_height();
|
|
self.update_apply_crop_visibility();
|
|
self.obj().queue_allocate();
|
|
}
|
|
|
|
fn update_crop_area_image_coord(&self) {
|
|
let crop_area_image_coord = self.crop_area_image_coord();
|
|
if self.is_in_user_change() {
|
|
log::trace!("Setting crop are in image coordinates to {crop_area_image_coord:?}");
|
|
self.crop_area_image_coord.replace(crop_area_image_coord);
|
|
}
|
|
}
|
|
|
|
fn total_x(&self) -> i32 {
|
|
self.image().image_rendering_x() as i32
|
|
}
|
|
|
|
fn total_y(&self) -> i32 {
|
|
self.image().image_rendering_y() as i32
|
|
}
|
|
|
|
pub(super) fn total_width(&self) -> i32 {
|
|
self.image().image_rendering_width() as i32
|
|
}
|
|
|
|
pub(super) fn total_height(&self) -> i32 {
|
|
self.image().image_rendering_height() as i32
|
|
}
|
|
|
|
pub(super) fn image(&self) -> LpImage {
|
|
let crop = self
|
|
.obj()
|
|
.ancestor(LpEditCrop::static_type())
|
|
.unwrap()
|
|
.downcast::<LpEditCrop>()
|
|
.unwrap();
|
|
crop.image()
|
|
}
|
|
|
|
pub(super) fn aspect_ratio_animation(&self) -> &adw::TimedAnimation {
|
|
self.aspect_ratio_animation.get_or_init(|| {
|
|
adw::TimedAnimation::builder()
|
|
.duration(200)
|
|
.value_from(0.)
|
|
.value_to(1.)
|
|
.easing(adw::Easing::EaseOutSine)
|
|
.widget(&*self.obj())
|
|
.target(&adw::CallbackAnimationTarget::new(|_| {}))
|
|
.build()
|
|
})
|
|
}
|
|
|
|
fn set_selection_in_resize(&self, in_resize: Option<InResize>) {
|
|
self.selection_in_resize.replace(in_resize);
|
|
self.update_apply_crop_visibility();
|
|
}
|
|
|
|
fn set_selection_in_move(&self, in_move: Option<InMove>) {
|
|
self.selection_in_move.replace(in_move);
|
|
self.update_apply_crop_visibility();
|
|
}
|
|
|
|
fn update_apply_crop_visibility(&self) {
|
|
let visibile = self.obj().is_cropped()
|
|
&& self.selection_in_resize.get().is_none()
|
|
&& self.selection_in_move.get().is_none();
|
|
|
|
// Don't use `set_visble` since it queues a resize
|
|
if visibile {
|
|
self.apply_button.set_opacity(1.);
|
|
self.apply_button.set_can_target(true);
|
|
self.apply_button.set_can_focus(true);
|
|
} else {
|
|
self.apply_button.set_opacity(0.);
|
|
self.apply_button.set_can_target(false);
|
|
self.apply_button.set_can_focus(false);
|
|
}
|
|
}
|
|
|
|
pub(super) fn crop_area_image_coord(&self) -> Option<(u32, u32, u32, u32)> {
|
|
let obj = self.obj();
|
|
|
|
if !obj.is_cropped() {
|
|
return None;
|
|
}
|
|
|
|
let image = self.image();
|
|
|
|
let (x1, y1) = image.widget_to_img_coord((
|
|
image.image_rendering_x() + obj.crop_x() as f64,
|
|
image.image_rendering_y() + obj.crop_y() as f64,
|
|
));
|
|
let (x2, y2) = image.widget_to_img_coord((
|
|
image.image_rendering_x() + obj.crop_x() as f64 + obj.crop_width() as f64,
|
|
image.image_rendering_y() + obj.crop_y() as f64 + obj.crop_height() as f64,
|
|
));
|
|
|
|
Some((
|
|
x1.round() as u32,
|
|
y1.round() as u32,
|
|
(x2 - x1).round() as u32,
|
|
(y2 - y1).round() as u32,
|
|
))
|
|
}
|
|
|
|
fn crop_area_widget_coord(&self) -> (f32, f32, f32, f32) {
|
|
let image = self.image();
|
|
|
|
let size = image.image_size();
|
|
let (x, y, w, h) =
|
|
self.crop_area_image_coord
|
|
.get()
|
|
.unwrap_or((0, 0, size.0 as u32, size.1 as u32));
|
|
let (x, y) = image.img_to_draw_coord((x as f64, y as f64));
|
|
let (w, h) = image.img_to_draw_coord((w as f64, h as f64));
|
|
|
|
(
|
|
x.round() as f32,
|
|
y.round() as f32,
|
|
w.round() as f32,
|
|
h.round() as f32,
|
|
)
|
|
}
|
|
|
|
fn set_aspect_ratio(&self, aspect_ratio: LpAspectRatio) {
|
|
self.aspect_ratio.replace(aspect_ratio);
|
|
self.aspect_ratio_changed();
|
|
}
|
|
|
|
fn set_orientation(&self, orientation: LpOrientation) {
|
|
self.orientation.replace(orientation);
|
|
self.aspect_ratio_changed();
|
|
}
|
|
|
|
fn is_in_user_change(&self) -> bool {
|
|
self.selection_in_resize.get().is_some()
|
|
|| self.selection_in_move.get().is_some()
|
|
|| self.selection_in_reset.get()
|
|
|| self.aspect_ratio_animation().state() == adw::AnimationState::Playing
|
|
}
|
|
|
|
pub(super) fn is_cropped(&self) -> bool {
|
|
let obj = self.obj();
|
|
|
|
let untouched: bool = obj.crop_x() == 0.
|
|
&& obj.crop_y() == 0.
|
|
&& obj.crop_width() as i32 == self.total_width()
|
|
&& obj.crop_height() as i32 == self.total_height();
|
|
!untouched
|
|
}
|
|
|
|
pub(super) fn reset(&self) {
|
|
let width = self.total_width() as f32;
|
|
let height = self.total_height() as f32;
|
|
|
|
self.set_crop(graphene::Rect::new(0., 0., width, height));
|
|
self.crop_area_image_coord.set(None);
|
|
}
|
|
}
|
|
}
|
|
|
|
glib::wrapper! {
|
|
pub struct LpEditCropSelection(ObjectSubclass<imp::LpEditCropSelection>)
|
|
@extends gtk::Widget;
|
|
}
|
|
|
|
impl LpEditCropSelection {
|
|
pub fn new() -> Self {
|
|
glib::Object::new()
|
|
}
|
|
|
|
pub fn reset(&self) {
|
|
self.imp().reset();
|
|
}
|
|
|
|
pub fn crop_area_image_coord(&self) -> Option<(u32, u32, u32, u32)> {
|
|
self.imp().crop_area_image_coord()
|
|
}
|
|
|
|
pub fn image(&self) -> LpImage {
|
|
self.imp().image()
|
|
}
|
|
|
|
pub fn is_cropped(&self) -> bool {
|
|
self.imp().is_cropped()
|
|
}
|
|
}
|