63 lines
2 KiB
Rust
63 lines
2 KiB
Rust
// SPDX-License-Identifier: GPL-3.0-or-later
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// src/ui/views/canvas.rs
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//
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// Render the center canvas area with the current document.
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use cosmic::iced::widget::image::FilterMethod;
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use cosmic::iced::{ContentFit, Length};
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use cosmic::widget::{container, text};
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use cosmic::Element;
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use super::image_viewer::Viewer;
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use crate::ui::model::{ToolMode, ViewMode};
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use crate::ui::{AppMessage, AppModel};
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use crate::application::DocumentManager;
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use crate::config::AppConfig;
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use crate::fl;
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/// Render the center canvas area with the current document.
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pub fn view<'a>(
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model: &'a AppModel,
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_manager: &'a DocumentManager,
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config: &'a AppConfig,
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) -> Element<'a, AppMessage> {
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if let Some(handle) = &model.current_image_handle {
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let content_fit = match model.view_mode {
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ViewMode::Fit => ContentFit::Contain,
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ViewMode::ActualSize | ViewMode::Custom => ContentFit::None,
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};
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let img_viewer = Viewer::new(handle)
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.with_state(model.scale, model.pan_x, model.pan_y)
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.on_state_change(|scale, offset_x, offset_y, canvas_size, image_size| {
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AppMessage::ViewerStateChanged {
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scale,
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offset_x,
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offset_y,
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canvas_size,
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image_size,
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}
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})
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.width(Length::Fill)
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.height(Length::Fill)
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.content_fit(content_fit)
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.filter_method(FilterMethod::Nearest)
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.min_scale(config.min_scale)
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.max_scale(config.max_scale)
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.scale_step(config.scale_step - 1.0)
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.disable_pan(model.tool_mode == ToolMode::Crop);
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// TODO: Add crop dialog when ToolMode::Crop
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// For now, just show the viewer
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container(img_viewer)
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.width(Length::Fill)
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.height(Length::Fill)
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.into()
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} else {
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container(text(fl!("no-document")))
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.width(Length::Fill)
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.height(Length::Fill)
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.center(Length::Fill)
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.into()
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}
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}
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