Add extgstates to page resources

examples/simple.rs

@@ -101,15 +101,18 @@ fn main() {
     let xobject_id = doc.add_xobject(&svg);
 
     for i in 0..10 {
+
         let transform = XObjectTransform {
             rotate: Some(XObjectRotation {
                 angle_ccw_degrees: i as f32 * 36.0,
-                rotation_center_x: rotation_center_x.into_pt(300.0),
-                rotation_center_y: rotation_center_y.into_pt(300.0),
+                rotation_center_x: rotation_center_x,
+                rotation_center_y: rotation_center_y,
             }),
             translate_x: Some(Mm(i as f32 * 20.0 % 50.0).into()),
             translate_y: Some(Mm(i as f32 * 30.0).into()),
-            ..Default::default()
+            dpi: Some(300.0),
+            scale_x: None,
+            scale_y: None,
         };
 
         ops.extend_from_slice(&[

src/annotation.rs

@@ -14,26 +14,26 @@ pub struct PageAnnotation {
 pub struct LinkAnnotation {
     pub rect: Rect,
     pub border: BorderArray,
-    pub c: ColorArray,
-    pub a: Actions,
-    pub h: HighlightingMode,
+    pub color: ColorArray,
+    pub actions: Actions,
+    pub highlighting: HighlightingMode,
 }
 
 impl LinkAnnotation {
     /// Creates a new LinkAnnotation
     pub fn new(
         rect: Rect,
+        actions: Actions,
         border: Option<BorderArray>,
-        c: Option<ColorArray>,
-        a: Actions,
-        h: Option<HighlightingMode>,
+        color: Option<ColorArray>,
+        highlighting: Option<HighlightingMode>,
     ) -> Self {
         Self {
             rect,
             border: border.unwrap_or_default(),
-            c: c.unwrap_or_default(),
-            a,
-            h: h.unwrap_or_default(),
+            color: color.unwrap_or_default(),
+            actions,
+            highlighting: highlighting.unwrap_or_default(),
         }
     }
 }
@@ -44,6 +44,31 @@ pub enum BorderArray {
     Dashed([f32; 3], DashPhase),
 }
 
+impl BorderArray {
+    pub fn to_array(&self) -> Vec<f32> {
+        match self {
+            BorderArray::Solid(s) => s.to_vec(),
+            BorderArray::Dashed(s, dash_phase) => {
+                let mut s = s.to_vec();
+                s.push(dash_phase.phase);
+                s
+            },
+        }
+    }
+}
+
+/*
+
+    impl Into<Object> for DashPhase {
+        fn into(self) -> Object {
+            Object::Array(vec![
+                Object::Array(self.dash_array.into_iter().map(|x| Object::Real(x.into())).collect()),
+                Object::Real(self.phase.into()),
+            ])
+        }
+    }
+*/
+
 impl Default for BorderArray {
     fn default() -> Self {
         BorderArray::Solid([0.0, 0.0, 1.0])
@@ -86,13 +111,45 @@ pub enum Destination {
     },
 }
 
+/*
+    GoTo Go to a destination in the current document. “Go-To Actions” on page 654
+    GoToR (“Go-to remote”) Go to a destination in another document. “Remote Go-To Actions” on page 655
+    GoToE (“Go-to embedded”; PDF 1.6) Go to a destination in an embedded file. “Embedded Go-To Actions” on page 655
+    Launch Launch an application, usually to open a file. “Launch Actions” on page 659
+    Thread Begin reading an article thread. “Thread Actions” on page 661
+    URI Resolve a uniform resource identifier. “URI Actions” on page 662
+    Sound (PDF 1.2) Play a sound. “Sound Actions” on page 663
+    Movie (PDF 1.2) Play a movie. “Movie Actions” on page 664
+    Hide (PDF 1.2) Set an annotation’s Hidden flag. “Hide Actions” on page 665
+    Named (PDF 1.2) Execute an action predefined by the viewer application. “Named Actions” on page 666
+    SubmitForm (PDF 1.2) Send data to a uniform resource locator. “Submit-Form Actions” on page 703
+    ResetForm (PDF 1.2) Set fields to their default values. “Reset-Form Actions” on page 707
+    ImportData (PDF 1.2) Import field values from a file. “Import-Data Actions” on page 708
+    JavaScript (PDF 1.3) Execute a JavaScript script. “JavaScript Actions” on page 709
+    SetOCGState (PDF 1.5) Set the states of optional content groups. “Set-OCG-State Actions” on page 667
+    Rendition (PDF 1.5) Controls the playing of multimedia content. “Rendition Actions” on page 668
+    Trans (PDF 1.5) Updates the display of a document, using a transition dictionary. “Transition Actions” on page 670
+    GoTo3DView (PDF 1.6) Set the current view of a 3D annotation “Go-To-3D-View Actions” on page 670
+*/
 #[derive(Debug, PartialEq, Clone)]
 pub enum Actions {
     GoTo(Destination),
     URI(String),
 }
 
 impl Actions {
+
+    /// 8.5.3 Action Types: PDF supports the standard action types listed in Table 8.48. 
+    /// 
+    /// The following sections describe each of these types in detail. 
+    /// Plug-in extensions may add new action types.
+    pub fn get_action_type_id(&self) -> &'static str {
+        match self {
+            Actions::GoTo(_) => "GoTo",
+            Actions::URI(_) => "URI",
+        }
+    }
+
     pub fn go_to(destination: Destination) -> Self {
         Self::GoTo(destination)
     }
@@ -115,3 +172,15 @@ impl Default for HighlightingMode {
         HighlightingMode::Invert
     }
 }
+
+impl HighlightingMode {
+    pub fn get_id(&self) -> &'static str {
+        use self::HighlightingMode::*;
+        match self {
+            None => "N",
+            Invert => "I",
+            Outline => "O",
+            Push => "P",
+        }
+    }
+}