Merge pull request #325 from hecrj/feature/canvas-interaction

Canvas interactivity and Game of Life example

3 files changed, 92 insertions, 0 deletions

diff --git a/core/src/mouse/button.rs b/core/src/mouse/button.rs
new file mode 100644
index 00000000..aeb8a55d
--- /dev/null
+++ b/core/src/mouse/button.rs
@@ -0,0 +1,15 @@
+/// The button of a mouse.
+#[derive(Debug, Hash, PartialEq, Eq, Clone, Copy)]
+pub enum Button {
+    /// The left mouse button.
+    Left,
+
+    /// The right mouse button.
+    Right,
+
+    /// The middle (wheel) button.
+    Middle,
+
+    /// Some other button.
+    Other(u8),
+}
diff --git a/core/src/mouse/event.rs b/core/src/mouse/event.rs
new file mode 100644
index 00000000..2f07b207
--- /dev/null
+++ b/core/src/mouse/event.rs
@@ -0,0 +1,57 @@
+use super::Button;
+
+/// A mouse event.
+///
+/// _**Note:** This type is largely incomplete! If you need to track
+/// additional events, feel free to [open an issue] and share your use case!_
+///
+/// [open an issue]: https://github.com/hecrj/iced/issues
+#[derive(Debug, Clone, Copy, PartialEq)]
+pub enum Event {
+    /// The mouse cursor entered the window.
+    CursorEntered,
+
+    /// The mouse cursor left the window.
+    CursorLeft,
+
+    /// The mouse cursor was moved
+    CursorMoved {
+        /// The X coordinate of the mouse position
+        x: f32,
+
+        /// The Y coordinate of the mouse position
+        y: f32,
+    },
+
+    /// A mouse button was pressed.
+    ButtonPressed(Button),
+
+    /// A mouse button was released.
+    ButtonReleased(Button),
+
+    /// The mouse wheel was scrolled.
+    WheelScrolled {
+        /// The scroll movement.
+        delta: ScrollDelta,
+    },
+}
+
+/// A scroll movement.
+#[derive(Debug, Clone, Copy, PartialEq)]
+pub enum ScrollDelta {
+    /// A line-based scroll movement
+    Lines {
+        /// The number of horizontal lines scrolled
+        x: f32,
+
+        /// The number of vertical lines scrolled
+        y: f32,
+    },
+    /// A pixel-based scroll movement
+    Pixels {
+        /// The number of horizontal pixels scrolled
+        x: f32,
+        /// The number of vertical pixels scrolled
+        y: f32,
+    },
+}
diff --git a/core/src/mouse/interaction.rs b/core/src/mouse/interaction.rs
new file mode 100644
index 00000000..664147a7
--- /dev/null
+++ b/core/src/mouse/interaction.rs
@@ -0,0 +1,20 @@
+/// The interaction of a mouse cursor.
+#[derive(Debug, Eq, PartialEq, Clone, Copy, PartialOrd, Ord)]
+#[allow(missing_docs)]
+pub enum Interaction {
+    Idle,
+    Pointer,
+    Grab,
+    Text,
+    Crosshair,
+    Working,
+    Grabbing,
+    ResizingHorizontally,
+    ResizingVertically,
+}
+
+impl Default for Interaction {
+    fn default() -> Interaction {
+        Interaction::Idle
+    }
+}