image: Reorganize into several sub-modules

src/widgets/image/printing.rs

@@ -0,0 +1,49 @@
+// Copyright (c) 2023 Sophie Herold
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+use super::*;
+
+impl LpImage {
+    pub fn print_data(&self, scale: f64) -> Option<gdk::Texture> {
+        let orientation = self.metadata().orientation();
+
+        let render_options = tiling::RenderOptions {
+            scaling_filter: gsk::ScalingFilter::Trilinear,
+            background_color: None,
+            scale_factor: 1,
+        };
+
+        let snapshot = gtk::Snapshot::new();
+
+        self.snapshot_rotate_mirror(
+            &snapshot,
+            -orientation.rotation as f32,
+            orientation.mirrored,
+            scale,
+        );
+
+        self.imp()
+            .frame_buffer
+            .load()
+            .add_to_snapshot(&snapshot, scale, &render_options);
+
+        let node = snapshot.to_node()?;
+        let renderer = self.root()?.renderer();
+
+        Some(renderer.render_texture(&node, None))
+    }
+}