87 lines
4.0 KiB
Rust
87 lines
4.0 KiB
Rust
//! View menu commands that change the project (guides) or headless-relevant editor state (the
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//! region of interest).
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use effectcraft_project::Guide;
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use serde_json::{Value, json};
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use super::{CommandSpec, always, bad, comp_id, f_p, has_comp, str_p};
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use crate::{EngineError, Result, Session, cmd};
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fn has_guides(s: &Session) -> std::result::Result<(), String> {
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has_comp(s)?;
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if s.active_comp().is_some_and(|c| !c.guides.is_empty()) { Ok(()) } else { Err("the composition has no guides".into()) }
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}
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fn add_guide(s: &mut Session, p: &Value) -> Result<Value> {
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let cid = comp_id(s, p)?;
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let vertical = match str_p(p, "orientation").unwrap_or("vertical") {
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"vertical" | "v" => true,
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"horizontal" | "h" => false,
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o => return Err(bad("view.addGuide", format!("orientation must be vertical or horizontal, not `{o}`"))),
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};
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let comp = s.project.comp(cid).ok_or(EngineError::NoComp)?;
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let position = f_p(p, "position").unwrap_or(if vertical { comp.width as f64 / 2.0 } else { comp.height as f64 / 2.0 });
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let n = s.edit("Add Guide", None, |proj, _| {
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let c = proj.comp_mut(cid).ok_or(EngineError::NoComp)?;
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c.guides.push(Guide { vertical, position });
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Ok(c.guides.len())
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})?;
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Ok(json!({"guides": n}))
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}
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fn clear_guides(s: &mut Session, p: &Value) -> Result<Value> {
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let cid = comp_id(s, p)?;
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s.edit("Clear Guides", None, |proj, _| {
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proj.comp_mut(cid).ok_or(EngineError::NoComp)?.guides.clear();
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Ok(())
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})?;
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Ok(Value::Null)
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}
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fn export_guides(s: &mut Session, p: &Value) -> Result<Value> {
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let path = str_p(p, "path").ok_or_else(|| bad("view.exportGuides", "missing `path`"))?;
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let comp = s.project.comp(comp_id(s, p)?).ok_or(EngineError::NoComp)?;
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let doc = json!({"effectcraftGuides": 1, "width": comp.width, "height": comp.height, "guides": comp.guides});
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let text = serde_json::to_string_pretty(&doc).unwrap_or_default();
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s.services.write_file(path, text.as_bytes()).map_err(|e| EngineError::Other(format!("cannot write {path}: {e}")))?;
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Ok(json!({"path": path, "guides": comp.guides.len()}))
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}
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fn import_guides(s: &mut Session, p: &Value) -> Result<Value> {
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let path = str_p(p, "path").ok_or_else(|| bad("view.importGuides", "missing `path`"))?;
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let cid = comp_id(s, p)?;
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let bytes = s.services.read_file(path).map_err(|e| EngineError::Other(format!("cannot read {path}: {e}")))?;
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let doc: Value = serde_json::from_slice(&bytes).map_err(|e| bad("view.importGuides", format!("not a guides file: {e}")))?;
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let guides: Vec<Guide> = serde_json::from_value(doc.get("guides").cloned().unwrap_or(json!([]))).map_err(|e| bad("view.importGuides", e.to_string()))?;
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let n = guides.len();
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s.edit("Import Guides", None, |proj, _| {
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proj.comp_mut(cid).ok_or(EngineError::NoComp)?.guides.extend(guides);
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Ok(())
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})?;
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Ok(json!({"imported": n}))
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}
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fn region_of_interest(s: &mut Session, p: &Value) -> Result<Value> {
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s.state.region_of_interest = match p.get("rect") {
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Some(Value::Array(a)) if a.len() == 4 => {
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let r = [0, 1, 2, 3].map(|i| a[i].as_f64().unwrap_or(0.0));
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if r[2] <= 0.0 || r[3] <= 0.0 {
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return Err(bad("view.setRegionOfInterest", "width and height must be positive"));
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}
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Some(r)
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}
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_ => None,
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};
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Ok(json!(s.state.region_of_interest))
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}
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pub fn specs() -> Vec<CommandSpec> {
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vec![
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cmd!("view.addGuide", "Add Guide...", ["View"], None, "{orientation?: vertical|horizontal, position? (comp px)}", has_comp, add_guide),
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cmd!("view.clearGuides", "Clear Guides", ["View"], None, "{comp?}", has_guides, clear_guides),
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cmd!("view.importGuides", "Import Guides...", ["View"], None, "{path}", has_comp, import_guides),
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cmd!("view.exportGuides", "Export Guides...", ["View"], None, "{path}", has_guides, export_guides),
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cmd!("view.setRegionOfInterest", "Region of Interest", [], None, "{rect?: [x, y, w, h] | null}", always, region_of_interest),
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]
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}
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