Cargo.toml

@@ -7,26 +7,25 @@ default-run = "stiletto"
 
 [dependencies]
 log = "0.4"
-druid = { version = "0.7", features = ["im", "svg"] }
+druid = { version = "0.7.0", features = ["im", "svg"] }
 im = { version = "*" }
 serde = { version = "1.0", features = ["derive"] }
 serde_bare = "0.3.0"
 serde_json = "1.0"
-clap = "3.1"
+clap = "3.0.0-beta.2"
 
 [target.'cfg(target_os="linux")'.dependencies.gtk]
-version = "0.14"
+version = "0.9.2"
 features = ["v3_22"]
 
 [target.'cfg(target_os="linux")'.dependencies.gio]
-version = "0.14"
+version = "0.9.1"
 features = ["v2_56"]
 
 [target.'cfg(target_os="linux")'.dependencies.gdk]
-version = "0.14"
+version = "0.13.2"
 features = ["v3_22"]
 
 [patch.crates-io]
-#druid = { git = "https://github.com/jneem/druid", branch = "pointer", features = ["im", "svg"] }
-druid = { path= "../druid/druid/" }
+druid = { git = "https://github.com/jneem/druid", branch = "pointer", features = ["im", "svg"] }
 

src/bin/stlt_migrate.rs

@@ -14,39 +14,35 @@
 //  You should have received a copy of the GNU Affero General Public License
 //  along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
-use clap::{Arg, Command};
+use clap::{Arg, App};
 use stiletto::migration::open_stiletto_document;
 
 use std::fs::File;
 use std::path::PathBuf;
 
 fn main() {
-    let matches = Command::new("Stiletto Migration CLI")
+    let matches = App::new("Stiletto Migration CLI")
         .version("0.1.0")
         .author("Stiletto Authors")
         .about("Migrate a stlt file to the latest version")
-        .arg(
-            Arg::new("INPUT")
-                .help("Sets the input file to use")
-                .required(true)
-                .index(1),
-        )
-        .arg(
-            Arg::new("OUTPUT")
-                .help("Sets the output file to use")
-                .required(true)
-                .index(2),
-        )
+        .arg(Arg::new("INPUT")
+            .about("Sets the input file to use")
+            .required(true)
+            .index(1))
+        .arg(Arg::new("OUTPUT")
+            .about("Sets the output file to use")
+            .required(true)
+            .index(2))
         .get_matches();
 
-    let input_path = matches.value_of("INPUT").unwrap();
-    let output_path = matches.value_of("OUTPUT").unwrap();
+   let input_path = matches.value_of("INPUT").unwrap();
+   let output_path = matches.value_of("OUTPUT").unwrap();
 
-    let out_file = File::create(&output_path).expect("Cannot create output fle");
+   let out_file = File::create(&output_path).expect("Cannot create output fle");
 
-    let result = open_stiletto_document(&PathBuf::from(&input_path));
-    if let Ok(document) = result {
-        let snapshot = document.migrate_to_latest();
-        snapshot.to_writer(out_file);
-    }
+   let result = open_stiletto_document(&PathBuf::from(&input_path));
+   if let Ok(document) = result {
+       let snapshot = document.migrate_to_latest();
+       snapshot.to_writer(out_file);
+   }
 }

src/canvas.rs

@@ -27,6 +27,12 @@ pub struct Path {
     pub kurbo_path: druid::kurbo::BezPath,
 }
 
+#[derive(Serialize, Deserialize)]
+#[serde(remote = "druid::Color")]
+enum ColorDef {
+    Rgba32(u32),
+}
+
 struct Interval {
     start_pos: f64,
     end_pos: f64,
@@ -80,29 +86,11 @@ pub enum CanvasElement {
     Freehand {
         path: Path,
         thickness: f64,
-        #[serde(
-            serialize_with = "serialize_color",
-            deserialize_with = "deserialize_color"
-        )]
+        #[serde(with = "ColorDef")]
         stroke_color: druid::Color,
     },
 }
 
-fn serialize_color<S>(c: &druid::Color, ser: S) -> Result<S::Ok, S::Error>
-where
-    S: Serializer,
-{
-    ser.serialize_u32(c.as_rgba_u32())
-}
-
-fn deserialize_color<'de, D>(de: D) -> Result<druid::Color, D::Error>
-where
-    D: Deserializer<'de>,
-{
-    let c = u32::deserialize(de)?;
-    Ok(druid::Color::from_rgba32_u32(c))
-}
-
 impl CanvasElement {
     pub fn bounding_box(&self) -> druid::Rect {
         match self {
@@ -205,16 +193,11 @@ impl Serialize for Path {
     {
         use druid::kurbo::PathEl;
 
-        serializer.collect_seq(
-            self.kurbo_path
-                .iter()
-                .filter_map(|path_el| match path_el {
-                    PathEl::MoveTo(pt) => Some(Into::<(f64, f64)>::into(pt)),
-                    PathEl::LineTo(pt) => Some(Into::<(f64, f64)>::into(pt)),
-                    _ => None,
-                })
-                .collect::<Vec<(f64, f64)>>(),
-        )
+        serializer.collect_seq(self.kurbo_path.iter().filter_map(|path_el| match path_el {
+            PathEl::MoveTo(pt) => Some(Into::<(f64, f64)>::into(pt)),
+            PathEl::LineTo(pt) => Some(Into::<(f64, f64)>::into(pt)),
+            _ => None,
+        }).collect::<Vec<(f64, f64)>>())
     }
 }
 

src/lib.rs

@@ -19,9 +19,9 @@ use std::vec::Vec;
 
 pub mod canvas;
 pub mod history;
-pub mod migration;
 pub mod tool;
 pub mod widget;
+pub mod migration;
 
 pub mod commands {
     use druid::Selector;

src/main.rs

@@ -24,20 +24,23 @@ use druid::widget::prelude::*;
 use druid::widget::{
     Align, Button, Controller, CrossAxisAlignment, Flex, List, SizedBox, WidgetExt,
 };
+use druid::gesture::DruidGestureRecognizer;
 use druid::{
     AppDelegate, AppLauncher, Color, Command, Data, DelegateCtx, Env, FileDialogOptions, FileSpec,
-    Handled, Lens, Target, WidgetId, WindowDesc,
+    Handled, Lens, PointerEventPolicy, Target, WidgetId, WindowDesc,
 };
 
 use im::Vector;
 
 use stiletto::tool::CanvasToolParams;
-use stiletto::widget::tool_ctx::CanvasToolCtx;
+use stiletto::widget::tool_ctx::{CanvasToolCtx};
 use stiletto::widget::{build_simple_tool_widget, CanvasState, CanvasToolIconState, CanvasWidget};
 use stiletto::DocumentSnapshot;
 
 pub fn main() {
-    let window = WindowDesc::new(build_ui())
+    let window = WindowDesc::new(build_ui)
+        .set_pointer_event_policy(PointerEventPolicy::UseMixedApi)
+        .set_gesture_recognizer(Box::new(DruidGestureRecognizer::new()))
         .window_size((1024.0, 1400.0))
         .title(|data: &StilettoState, _env: &Env| {
             let doc_name = if let Some(path) = &data.current_file_path {
@@ -77,7 +80,7 @@ pub fn main() {
         current_file_path: None,
     };
     AppLauncher::with_window(window)
-        .log_to_console()
+        .use_simple_logger()
         .delegate(Delegate)
         .launch(canvas_data)
         .expect("launch failed");
@@ -137,19 +140,17 @@ fn build_ui() -> impl Widget<StilettoState> {
                 ctx.submit_command(Command::new(CanvasWidget::SCROLL, 30.0, canvas_id));
             },
         ))
-        .with_child(
-            Button::new("Save").on_click(move |ctx, data: &mut StilettoState, _| {
-                if data.current_file_path.is_some() {
-                    ctx.submit_command(Command::new(commands::SAVE_FILE, (), Target::Auto));
-                } else {
-                    ctx.submit_command(Command::new(
-                        druid::commands::SHOW_SAVE_PANEL,
-                        save_dialog_options_clone.clone(),
-                        Target::Auto,
-                    ))
-                }
-            }),
-        )
+        .with_child(Button::new("Save").on_click(move |ctx, data: &mut StilettoState, _| {
+            if data.current_file_path.is_some() {
+                ctx.submit_command(Command::new(commands::SAVE_FILE, (), Target::Auto));
+            } else {
+                ctx.submit_command(Command::new(
+                    druid::commands::SHOW_SAVE_PANEL,
+                    save_dialog_options_clone.clone(),
+                    Target::Auto,
+                ))
+            }
+        }))
         .with_child(Button::new("Save As").on_click(move |ctx, _, _| {
             ctx.submit_command(Command::new(
                 druid::commands::SHOW_SAVE_PANEL,
@@ -276,7 +277,8 @@ impl AppDelegate<StilettoState> for Delegate {
 
             let res_file = File::create(&path_buf);
             if let Ok(f) = res_file {
-                let write_res = data.canvas.get_document_snapshot().to_writer(f);
+                let write_res =
+                    data.canvas.get_document_snapshot().to_writer(f);
                 if write_res.is_err() {
                     warn!("Error while saving: {:?}", write_res.err());
                 } else {

src/migration.rs

@@ -47,9 +47,7 @@ impl StilettoDocument {
 
     pub fn migrate_to_next(self) -> StilettoDocument {
         match self {
-            StilettoDocument::DocumentSnapshot0_1(snapshot) => {
-                StilettoDocument::DocumentSnapshot0_2(snapshot)
-            }
+            StilettoDocument::DocumentSnapshot0_1(snapshot) =>  StilettoDocument::DocumentSnapshot0_2(snapshot) ,
             StilettoDocument::DocumentSnapshot0_2(_) => self,
         }
     }
@@ -62,11 +60,12 @@ impl StilettoDocument {
         assert!(matches!(self, StilettoDocument::DocumentSnapshot0_2(_)));
         match self {
             StilettoDocument::DocumentSnapshot0_2(snapshot) => snapshot,
-            _ => panic!("Wrong Document Snapshot Version"),
+            _ => panic!("Wrong Document Snapshot Version")
         }
     }
 }
 
+
 impl fmt::Display for MigrationError {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match &self {
@@ -75,11 +74,10 @@ impl fmt::Display for MigrationError {
             MigrationError::IoError(e) => e.fmt(f),
             MigrationError::UnexpectedVersion(major, minor, e_major, e_minor) => {
                 write!(
-                    f,
-                    "Unexpected version ({}, {}): was expecting ({}, {})",
+                    f, "Unexpected version ({}, {}): was expecting ({}, {})",
                     major, minor, e_major, e_minor
                 )
-            }
+            },
         }
     }
 }
@@ -116,12 +114,12 @@ impl From<serde_bare::Error> for MigrationError {
 fn open_0_1(path: &PathBuf) -> Result<StilettoDocument, MigrationError> {
     let f = File::open(path)?;
     let document_snapshot: DocumentSnapshot = serde_json::from_reader(f)?;
-    if document_snapshot.format_version_major != 0 || document_snapshot.format_version_minor != 1 {
+    if document_snapshot.format_version_major != 0 ||
+        document_snapshot.format_version_minor != 1 {
         Err(MigrationError::UnexpectedVersion(
             document_snapshot.format_version_major,
             document_snapshot.format_version_minor,
-            0,
-            1,
+            0, 1
         ))
     } else {
         Ok(StilettoDocument::DocumentSnapshot0_1(document_snapshot))
@@ -141,3 +139,4 @@ pub fn open_stiletto_document(path: &PathBuf) -> Result<StilettoDocument, Migrat
 
     open_0_2(path)
 }
+

src/tool.rs

@@ -16,7 +16,7 @@
 
 use druid::{Color, Data};
 
-#[derive(Clone, Data, Debug)]
+#[derive(Clone, Data)]
 pub enum CanvasToolParams {
     Pen { thickness: f64, color: Color },
     Eraser,

src/widget/canvas.rs

@@ -16,17 +16,18 @@
 
 use im::Vector;
 
-use super::tool_ctx::CanvasToolCtx;
+use super::tool_ctx::{CanvasToolCtx};
 use crate::canvas::Canvas;
 use crate::history::VersionedCanvas;
 use crate::DocumentSnapshot;
 
-use druid::kurbo::Point;
 use druid::scroll_component::ScrollComponent;
 use druid::widget::prelude::*;
 use druid::widget::Viewport;
+use druid::kurbo::Point;
 use druid::{Affine, Color, Data, Env, Event, PointerType, Selector};
 
+
 #[derive(Clone, Data)]
 pub struct CanvasState {
     versioned_canvas: VersionedCanvas,
@@ -86,13 +87,7 @@ impl CanvasState {
         &mut self.tool_ctx
     }
 
-    pub fn handle_event(
-        &mut self,
-        ctx: &mut EventCtx,
-        event: &Event,
-        transform: Affine,
-        env: &Env,
-    ) {
+    pub fn handle_event(&mut self, ctx: &mut EventCtx, event: &Event, transform: Affine, env: &Env) {
         self.tool_ctx
             .handle_event(ctx, event, &mut self.versioned_canvas, transform, env);
     }
@@ -109,8 +104,7 @@ impl CanvasWidget {
         CanvasWidget {
             viewport: Viewport {
                 content_size: Size::new(0.0, 0.0),
-                view_origin: Point::new(0.0, 0.0),
-                view_size: Size::new(0.0, 0.0),
+                rect: druid::Rect::new(0.0, 0.0, 0.0, 0.0),
             },
             widget_size: Size::new(0.0, 0.0),
             scroll_component: ScrollComponent::new(),
@@ -118,14 +112,16 @@ impl CanvasWidget {
     }
 
     fn widget_to_viewport(&self) -> Affine {
-        if !self.viewport.view_size.is_empty() && !self.widget_size.is_empty() {
-            let scale_x = self.viewport.view_size.width / self.widget_size.width;
-            let scale_y = self.viewport.view_size.height / self.widget_size.height;
-            Affine::translate(self.viewport.view_origin.to_vec2())
-                * Affine::scale_non_uniform(scale_x, scale_y)
+        let viewport_rect_size = self.viewport.rect.size();
+        if !viewport_rect_size.is_empty() && !self.widget_size.is_empty() {
+            let scale_x = viewport_rect_size.width / self.widget_size.width;
+            let scale_y = viewport_rect_size.height / self.widget_size.height;
+            Affine::translate(self.viewport.rect.origin().to_vec2())
+            * Affine::scale_non_uniform(scale_x, scale_y)
         } else {
             Affine::scale(1.0) // identity
         }
+
     }
 
     pub const SCROLL: Selector<f64> = Selector::new("scroll_canvas");
@@ -158,25 +154,44 @@ impl Widget<CanvasState> for CanvasWidget {
                         viewport_transform = Some(Affine::translate((-30.0, 0.0)));
                     }
                 }
-                Event::MouseDown(pointer_event) => {
+                Event::MouseDown(mouse_event) => {
                     toggle_eraser_event = true;
-                    enable_temporary_erasing = pointer_event.pointer_type == PointerType::Eraser;
+                    enable_temporary_erasing = false; //mouse_event.pointer_type == PointerType::Eraser;
                 }
-                Event::MouseMove(pointer_event) => {
+                Event::MouseMove(mouse_event) => {
                     toggle_eraser_event = true;
-                    enable_temporary_erasing = pointer_event.pointer_type == PointerType::Eraser;
+                    enable_temporary_erasing = false; //mouse_event.pointer_type == PointerType::Eraser;
                 }
-                Event::MouseUp(pointer_event) => {
+                Event::MouseUp(mouse_event) => {
                     toggle_eraser_event = true;
-                    enable_temporary_erasing = pointer_event.pointer_type == PointerType::Eraser;
+                    enable_temporary_erasing = false; //mouse_event.pointer_type == PointerType::Eraser;
                 }
-                Event::Wheel(pointer) => {
+                Event::Wheel(mouse) => {
                     let transform = self.widget_to_viewport();
-                    viewport_transform = Some(Affine::translate(
-                        (pointer.wheel_delta.to_point()).to_vec2(),
-                    ));
+                    viewport_transform = Some(
+                        Affine::translate(
+                            (mouse.wheel_delta.to_point()).to_vec2()
+                        )
+                    );
+                }
+                Event::GestureZoom { zoom, center } => {
+                    let transform = self.widget_to_viewport();
+                    
+                    let diff = (transform * *center).to_vec2()
+                     - self.viewport.rect.center().to_vec2();
+                    viewport_transform = Some(
+                        Affine::scale(1.0/(1.0 + zoom))
+                    );
+                    log::debug!("{:#?}", viewport_transform);
+                }
+                Event::GesturePan(vec2) => {
+                    let transform = self.widget_to_viewport();
+                    viewport_transform = Some(
+                        Affine::translate(
+                            (vec2.to_point()).to_vec2()
+                        )
+                    );
                 }
-
                 _ => {}
             }
             // TODO: the first eraser toggle is not handled
@@ -190,8 +205,8 @@ impl Widget<CanvasState> for CanvasWidget {
             } else {
                 data.handle_event(ctx, event, self.widget_to_viewport(), env);
             }
-            if let Some(transform) = viewport_transform {
-                let mut new_rect = transform.transform_rect_bbox(self.viewport.view_rect());
+            if let Some(transform) = viewport_transform {        
+                let mut new_rect = transform.transform_rect_bbox(self.viewport.rect);
                 if new_rect.x0 <= 0f64 {
                     new_rect.x1 -= new_rect.x0;
                     new_rect.x0 = 0f64;
@@ -200,7 +215,7 @@ impl Widget<CanvasState> for CanvasWidget {
                     new_rect.y1 -= new_rect.y0;
                     new_rect.y0 = 0f64;
                 }
-                self.viewport.view_origin = new_rect.origin();
+                self.viewport.rect = new_rect;
                 self.scroll_component
                     .reset_scrollbar_fade(|d| ctx.request_timer(d), env);
                 ctx.request_paint();
@@ -269,14 +284,13 @@ impl Widget<CanvasState> for CanvasWidget {
 
         let page_content_size = data.versioned_canvas.get().content_size();
         let transform = self.widget_to_viewport();
-        //self.viewport.rect =
-        //    transform.transform_rect_bbox(rect)
-        //        .with_origin(self.viewport.rect.origin());
-        self.viewport.view_size = transform.transform_rect_bbox(rect).size();
+        self.viewport.rect = 
+            transform.transform_rect_bbox(rect)
+                .with_origin(self.viewport.rect.origin());
 
         self.viewport.content_size = druid::Size::new(
-            self.viewport.view_rect().x1.max(page_content_size.width),
-            self.viewport.view_rect().y1.max(page_content_size.height),
+            self.viewport.rect.x1.max(page_content_size.width),
+            self.viewport.rect.y1.max(page_content_size.height),
         );
         //log::debug!("{:#?}", &self.viewport);
 

src/widget/mod.rs

@@ -1,6 +1,6 @@
 pub mod canvas;
-pub mod tool_ctx;
 pub mod tool_icon;
+pub mod tool_ctx;
 
 pub use canvas::*;
 pub use tool_icon::*;

src/widget/tool_ctx.rs

@@ -14,14 +14,14 @@
 //  You should have received a copy of the GNU Affero General Public License
 //  along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
+use crate::tool::{CanvasToolParams, CanvasToolType};
 use crate::canvas::{Canvas, CanvasElement};
 use crate::history::VersionedCanvas;
-use crate::tool::{CanvasToolParams, CanvasToolType};
 
 use druid::kurbo::BezPath;
-use druid::{Affine, Data, Env, Event, EventCtx, PaintCtx, PointerButton, PointerEvent};
+use druid::{Affine, Data, Env, Event, EventCtx, MouseButton, MouseEvent, PaintCtx};
 
-#[derive(Clone, Data, Debug)]
+#[derive(Clone, Data)]
 pub enum CanvasToolState {
     Idle,
     DrawingFreehand {
@@ -46,14 +46,9 @@ impl CanvasToolParams {
     }
 }
 
-fn pressed(pointer_event: &PointerEvent) -> bool {
-    dbg!(&pointer_event);
-    dbg!(
-        pointer_event.buttons.contains(PointerButton::Left)
-            || pointer_event.button == PointerButton::Left
-    );
-    pointer_event.buttons.contains(PointerButton::Left)
-        || pointer_event.button == PointerButton::Left
+fn pressed(mouse_event: &MouseEvent) -> bool {
+    mouse_event.buttons.contains(MouseButton::Left)
+        || mouse_event.button == MouseButton::Left
 }
 
 impl CanvasToolCtx {
@@ -87,13 +82,13 @@ impl CanvasToolCtx {
         _env: &Env,
     ) {
         match (&mut self.state, event) {
-            (CanvasToolState::Idle, Event::MouseDown(pointer_event)) if pressed(pointer_event) => {
+            (CanvasToolState::Idle, Event::MouseDown(mouse_event)) if pressed(mouse_event) => {
                 self.state = CanvasToolState::Erasing;
                 ctx.set_handled();
             }
-            (CanvasToolState::Erasing, Event::MouseMove(pointer_event)) => {
+            (CanvasToolState::Erasing, Event::MouseMove(mouse_event)) if pressed(mouse_event) => {
                 let eraser_rect =
-                    druid::Rect::from_center_size(transform * pointer_event.pos, (5.0, 5.0));
+                    druid::Rect::from_center_size(transform * mouse_event.pos, (5.0, 5.0));
                 let old_elements = vcanvas.get().elements();
                 let mut new_elements = old_elements.clone();
                 new_elements.retain(|elem| {
@@ -112,7 +107,7 @@ impl CanvasToolCtx {
                 }
                 ctx.set_handled();
             }
-            (CanvasToolState::Erasing, Event::MouseUp(pointer_event)) if pressed(pointer_event) => {
+            (CanvasToolState::Erasing, Event::MouseUp(mouse_event)) if pressed(mouse_event) => {
                 self.state = CanvasToolState::Idle;
                 ctx.set_handled();
             }
@@ -129,9 +124,9 @@ impl CanvasToolCtx {
         _env: &Env,
     ) {
         match (&mut self.state, event) {
-            (CanvasToolState::Idle, Event::MouseDown(pointer_event)) if pressed(pointer_event) => {
+            (CanvasToolState::Idle, Event::MouseDown(mouse_event)) if pressed(mouse_event) => {
                 let mut kurbo_path = BezPath::new();
-                kurbo_path.move_to((pointer_event.pos.x, pointer_event.pos.y));
+                kurbo_path.move_to((mouse_event.pos.x, mouse_event.pos.y));
                 if let CanvasToolParams::Pen { thickness, color } = &self.initial_params {
                     self.state = CanvasToolState::DrawingFreehand {
                         pen_params: self.initial_params.clone(),
@@ -149,33 +144,31 @@ impl CanvasToolCtx {
                     ref mut current_path,
                     ..
                 },
-                Event::MouseMove(pointer_event),
-            ) => {
-                // TODO(enrico): investigate why mouse move doesn't carry buttons anymore
-                //if pressed(pointer_event) {
-                let CanvasElement::Freehand { ref mut path, .. } = current_path;
-                path.kurbo_path
-                    .line_to((pointer_event.pos.x, pointer_event.pos.y));
+                Event::MouseMove(mouse_event),
+            ) => if pressed(mouse_event) {
+                if let CanvasElement::Freehand { ref mut path, .. } = current_path {
+                    path.kurbo_path
+                        .line_to((mouse_event.pos.x, mouse_event.pos.y));
+                }
                 ctx.set_handled();
-                //}
             }
-            (CanvasToolState::DrawingFreehand { .. }, Event::MouseUp(pointer_event))
-                if pressed(pointer_event) =>
-            {
+            (CanvasToolState::DrawingFreehand { .. }, Event::MouseUp(mouse_event)) if pressed(mouse_event) => {
                 vcanvas.update(move |canvas: &mut Canvas| {
                     let current_state = std::mem::replace(&mut self.state, CanvasToolState::Idle);
                     if let CanvasToolState::DrawingFreehand { current_path, .. } = current_state {
-                        let CanvasElement::Freehand {
+                        if let CanvasElement::Freehand {
                             mut path,
                             thickness,
                             stroke_color,
-                        } = current_path;
-                        path.kurbo_path.apply_affine(transform);
-                        canvas.add_element(CanvasElement::Freehand {
-                            path,
-                            thickness,
-                            stroke_color,
-                        });
+                        } = current_path
+                        {
+                            path.kurbo_path.apply_affine(transform);
+                            canvas.add_element(CanvasElement::Freehand {
+                                path,
+                                thickness,
+                                stroke_color,
+                            });
+                        }
                     }
                 });
                 ctx.set_handled();