move shit around

Cargo.lock

@@ -104,15 +104,6 @@ dependencies = [
  "synstructure 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "imlib2"
-version = "0.1.0"
-dependencies = [
- "failure 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "imlib2-sys 0.1.0",
- "x11 2.18.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "imlib2-sys"
 version = "0.1.0"
@@ -212,11 +203,12 @@ name = "screenshot"
 version = "0.3.0"
 dependencies = [
  "failure 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "imlib2 0.1.0",
+ "imlib2-sys 0.1.0",
+ "libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "png 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "structopt 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
- "xlib 0.1.0",
+ "x11 2.18.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -356,16 +348,6 @@ dependencies = [
  "pkg-config 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "xlib"
-version = "0.1.0"
-dependencies = [
- "failure 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "imlib2 0.1.0",
- "libc 0.2.40 (registry+https://github.com/rust-lang/crates.io-index)",
- "x11 2.18.1 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [metadata]
 "checksum adler32 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "7e522997b529f05601e05166c07ed17789691f562762c7f3b987263d2dedee5c"
 "checksum ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ee49baf6cb617b853aa8d93bf420db2383fab46d314482ca2803b40d5fde979b"

Cargo.toml

@@ -5,7 +5,7 @@ version = "0.3.0"
 authors = ["Michael Zhang <failed.down@gmail.com>"]
 
 [workspace]
-members = [".", "imlib2", "imlib2/imlib2-sys", "xlib"]
+members = [".", "imlib2-sys"]
 
 [lib]
 crate-type = ["dylib", "rlib"]
@@ -13,7 +13,8 @@ crate-type = ["dylib", "rlib"]
 [dependencies]
 failure = "0.1"
 png = "0.12"
-imlib2 = { path = "imlib2" }
+imlib2-sys = { path = "imlib2-sys" }
+libc = "0.2"
 structopt = "0.2"
 time = "0.1"
-xlib = { path = "xlib" }
+x11 = { version = "2.18", features = ["xlib"] }

imlib2/Cargo.toml

@@ -1,12 +0,0 @@
-[package]
-name = "imlib2"
-version = "0.1.0"
-authors = ["Michael Zhang <failed.down@gmail.com>"]
-
-[lib]
-path = "lib.rs"
-
-[dependencies]
-failure = "0.1"
-imlib2-sys = { path = "imlib2-sys" }
-x11 = { version = "2.18", features = ["xlib"] }

imlib2/lib.rs

@@ -1,25 +0,0 @@
-//! Safe-ish bindings to imlib2 (at least the only parts I need).
-
-#![deny(missing_docs)]
-
-#[macro_use]
-extern crate failure;
-extern crate imlib2_sys;
-extern crate x11;
-
-mod errors;
-mod image;
-
-pub use errors::Error;
-pub use image::Image;
-pub use imlib2_sys::{Drawable, Pixmap};
-
-/// Set the display for the imlib context.
-pub fn context_set_display(display: *mut x11::xlib::Display) {
-    unsafe { imlib2_sys::imlib_context_set_display(display as *mut imlib2_sys::_XDisplay) };
-}
-
-/// Set the visual for the imlib context.
-pub fn context_set_visual(visual: *mut x11::xlib::Visual) {
-    unsafe { imlib2_sys::imlib_context_set_visual(visual as *mut imlib2_sys::Visual) };
-}

src/capture.rs

@@ -11,7 +11,7 @@ pub fn capture(opt: &Options) -> Result<(), ScreenshotError> {
         _ => gui.display.get_default_root_window()?,
     };
 
-    let capture = gui.capture_window(window_to_capture)?;
+    let capture = gui.capture_window(&opt, window_to_capture)?;
     capture.save_image(&opt.outfile)?;
 
     Ok(())

src/gui.rs

@@ -1,9 +1,11 @@
 use imlib2::{self, Image as Image2};
-use xlib::{Display, Image, Window, Visual};
+use xlib::{Display, EventKind, Visual, Window};
 
 use errors::ScreenshotError;
+use Options;
 use Rectangle;
 use SelectWindow;
+use Region;
 
 pub struct GUI {
     pub(crate) display: Display,
@@ -15,19 +17,31 @@ impl GUI {
         Ok(GUI { display })
     }
 
-    /// Captures the window and produces a DynamicImage.
-    pub fn capture_window(&self, window: Window) -> Result<Image2, ScreenshotError> {
+    /// Captures the window and produces an Image.
+    pub fn capture_window(&self, opt: &Options, window: Window) -> Result<Image2, ScreenshotError> {
         let attr = window.get_attributes()?;
-        let width = attr.get_width() as i32;
-        let height = attr.get_height() as i32;
+        let mut width = attr.get_width();
+        let mut height = attr.get_height();
         let root = self.display.get_default_root_window()?;
-        let (x, y, _) = self.display.translate_coordinates(window, 0, 0, root)?;
+        let (mut x, mut y, _) = self.display.translate_coordinates(window, 0, 0, root)?;
 
-        imlib2::context_set_display(self.display.as_raw());
+        imlib2::context_set_display(&self.display);
         let visual = Visual::default(&self.display, 0);
-        imlib2::context_set_visual(visual.as_raw());
+        imlib2::context_set_visual(&visual);
 
-        Image2::create_from_drawable(window, 0, x, y, width, height, true).map_err(|err| err.into())
+        match opt.region {
+            Region::Selection => {
+                let region = self.interactive_select()?;
+                x = region.x;
+                y = region.y;
+                width = region.width;
+                height = region.height;
+            },
+            _ => ()
+        }
+
+        Image2::create_from_drawable(window, 0, x, y, width as i32, height as i32, true)
+            .map_err(|err| err.into())
     }
 
     /// Get the active window.
@@ -40,8 +54,19 @@ impl GUI {
 
     /// Brings up an interactive selection GUI.
     #[allow(dead_code)]
-    pub fn interactive_select(&self, _capture: &Image) -> Result<Rectangle, ScreenshotError> {
+    pub fn interactive_select(&self) -> Result<Rectangle, ScreenshotError> {
         let window = SelectWindow::new(&self.display);
+        let root = self.display.get_default_root_window()?;
+
+        let root_im = root.get_image();
+
+        let mut done = 0;
+        while done == 0 && self.display.pending()? > 0 {
+            let ev = self.display.next_event()?;
+            match ev.kind() {
+                EventKind::None => (),
+            }
+        }
         Err(ScreenshotError::Error)
     }
 }

src/imlib2/image.rs

@@ -2,9 +2,9 @@ use std::ffi::CString;
 use std::path::Path;
 
 use imlib2_sys as im;
-use x11;
 
-use Error;
+use imlib2::Error;
+use xlib::Drawable;
 
 /// A simple wrapper around Imlib_Image
 pub struct Image {
@@ -14,7 +14,7 @@ pub struct Image {
 impl Image {
     /// Creates an Image from a pixmap.
     pub fn create_from_drawable(
-        drawable: impl AsRef<im::Drawable>,
+        drawable: impl Drawable,
         pixmap: im::Pixmap,
         x: i32,
         y: i32,
@@ -22,7 +22,7 @@ impl Image {
         height: i32,
         grab_x: bool,
     ) -> Result<Self, Error> {
-        unsafe { im::imlib_context_set_drawable(*drawable.as_ref()) };
+        unsafe { im::imlib_context_set_drawable(drawable.as_drawable()) };
         let image = unsafe {
             im::imlib_create_image_from_drawable(
                 pixmap,
@@ -33,15 +33,21 @@ impl Image {
                 if grab_x { 1 } else { 0 },
             ) as im::Imlib_Image
         };
+        unsafe { im::imlib_context_set_image(image) };
         Ok(Image { inner: image })
     }
 
     /// Save this image
     pub fn save_image(&self, file: impl AsRef<Path>) -> Result<(), Error> {
-        unsafe { im::imlib_context_set_image((*self).inner) };
         let mut error = 0;
         let path = CString::new(file.as_ref().to_str().unwrap()).unwrap();
         unsafe { im::imlib_save_image_with_error_return(path.as_ptr(), &mut error) };
         Ok(())
     }
 }
+
+impl Drop for Image {
+    fn drop(&mut self) {
+        unsafe { im::imlib_free_image() };
+    }
+}

src/imlib2/mod.rs

@@ -0,0 +1,26 @@
+//! Safe-ish bindings to imlib2 (at least the only parts I need).
+
+#![deny(missing_docs)]
+
+mod errors;
+mod image;
+
+use imlib2_sys;
+
+pub use self::errors::Error;
+pub use self::image::Image;
+pub use imlib2_sys::{Drawable, Pixmap};
+
+use xlib::{Display, Visual};
+
+/// Set the display for the imlib context.
+pub fn context_set_display(display: &Display) {
+    unsafe {
+        imlib2_sys::imlib_context_set_display(display.as_raw() as *mut imlib2_sys::_XDisplay)
+    };
+}
+
+/// Set the visual for the imlib context.
+pub fn context_set_visual(visual: &Visual) {
+    unsafe { imlib2_sys::imlib_context_set_visual(visual.as_raw() as *mut imlib2_sys::Visual) };
+}

src/lib.rs

@@ -1,11 +1,14 @@
+#![feature(try_from)]
+
 #[macro_use]
 extern crate failure;
-extern crate imlib2;
+extern crate imlib2_sys;
+extern crate libc;
 extern crate png;
 #[macro_use]
 extern crate structopt;
 extern crate time;
-extern crate xlib;
+extern crate x11;
 
 mod capture;
 mod errors;
@@ -13,9 +16,13 @@ mod gui;
 mod options;
 mod window;
 
+pub mod imlib2;
+pub mod xlib;
+
 use structopt::StructOpt;
 use xlib::Rectangle;
+use errors::ScreenshotError;
 
 pub use capture::capture;
-pub use options::Options;
+pub use options::{Options, Region};
 pub use window::SelectWindow;

src/main.rs

@@ -8,6 +8,5 @@ use structopt::StructOpt;
 
 pub fn main() -> Result<(), Error> {
     let opt = Options::from_args();
-    // let image = capture(&opt)?;
     capture(&opt).map(|_| ()).map_err(|err| err.into())
 }

src/options.rs

@@ -1,20 +1,16 @@
 use std::path::PathBuf;
 
-#[derive(StructOpt)]
+use ScreenshotError;
+
 pub enum Region {
-    #[structopt(name = "fullscreen")]
     Fullscreen,
-
-    #[structopt(name = "window")]
     ActiveWindow,
-
-    #[structopt(name = "select")]
     Selection,
 }
 
 #[derive(StructOpt)]
 pub struct Options {
-    #[structopt(subcommand)]
+    #[structopt(parse(try_from_str = "Region::from_str"))]
     pub region: Region,
 
     #[structopt(short = "o", long = "out", parse(from_os_str))]
@@ -23,3 +19,14 @@ pub struct Options {
     #[structopt(short = "c")]
     pub clipboard: bool,
 }
+
+impl Region {
+    pub fn from_str(x: &str) -> Result<Self, ScreenshotError> {
+        match x {
+            "fullscreen" => Ok(Region::Fullscreen),
+            "window" => Ok(Region::ActiveWindow),
+            "select" | "selection" => Ok(Region::Selection),
+            _ => Err(ScreenshotError::Error),
+        }
+    }
+}

src/window.rs

@@ -1,4 +1,4 @@
-use xlib::{Display, Window, Rectangle};
+use xlib::{Display, Rectangle, Window};
 
 use errors::ScreenshotError;
 

src/xlib/display.rs

@@ -1,16 +1,21 @@
 use std::ffi::CString;
 
+use libc;
 use x11::xlib as x;
 
-use Visual;
-use Window;
-use X11Error;
+use xlib::{Event, Visual, Window, X11Error};
 
 /// A connection to an X server.
 pub struct Display {
     inner: *mut x::Display,
 }
 
+/// Something that's part of a display.
+pub trait GetDisplay {
+    /// Get the current display
+    fn get_display(&self) -> *mut x::Display;
+}
+
 impl Display {
     /// Opens a new connection to an X server.
     ///
@@ -25,6 +30,18 @@ impl Display {
         Ok(Display { inner })
     }
 
+    /// Get the next event, blocks until an event is reached.
+    pub fn next_event(&self) -> Result<Event, X11Error> {
+        let event =
+            unsafe { libc::malloc(::std::mem::size_of::<x::XAnyEvent>()) as *mut x::XAnyEvent };
+        Event::from_raw(event)
+    }
+
+    /// Returns the number of events that are still pending
+    pub fn pending(&self) -> Result<i32, X11Error> {
+        Ok(unsafe { x::XPending(self.inner) })
+    }
+
     /// Gets the raw X Display handle
     pub fn as_raw(&self) -> *mut x::Display {
         self.inner

src/xlib/drawable.rs

@@ -0,0 +1,26 @@
+use x11::xlib as x;
+
+use xlib::{GetDisplay, Image, Rectangle, X11Error};
+
+/// Anything that's drawable
+pub trait Drawable: GetDisplay {
+    /// Get drawable handle
+    fn as_drawable(&self) -> x::Drawable;
+
+    /// Capture a snapshot of this drawable, clipped by rect.
+    fn get_image(&self, rect: Rectangle) -> Result<Image, X11Error> {
+        let image = unsafe {
+            x::XGetImage(
+                self.get_display(),
+                self.as_drawable(),
+                rect.x as i32,
+                rect.y as i32,
+                rect.width,
+                rect.height,
+                0xffffffff,
+                x::ZPixmap,
+            )
+        };
+        Ok(Image { inner: image })
+    }
+}

src/xlib/event.rs

@@ -0,0 +1,36 @@
+use libc;
+use x11::xlib as x;
+
+use xlib::X11Error;
+
+/// An x11 Event
+pub struct Event {
+    inner: *mut x::XAnyEvent,
+    kind: EventKind,
+}
+
+/// Type of event
+pub enum EventKind {
+    /// None event
+    None,
+}
+
+impl Event {
+    /// Returns the EventKind of this event
+    pub fn kind(&self) -> &EventKind {
+        &self.kind
+    }
+
+    pub(super) fn from_raw(event: *mut x::XAnyEvent) -> Result<Self, X11Error> {
+        Ok(Event {
+            inner: event,
+            kind: EventKind::None,
+        })
+    }
+}
+
+impl Drop for Event {
+    fn drop(&mut self) {
+        unsafe { libc::free(self.inner as *mut libc::c_void) };
+    }
+}

src/xlib/gc.rs

@@ -0,0 +1,2 @@
+/// Graphics context
+pub struct GC {}

src/xlib/image.rs

@@ -1,6 +1,6 @@
 use x11::xlib as x;
 
-use X11Error;
+use xlib::X11Error;
 
 /// A handle to an XImage.
 pub struct Image {

src/xlib/mod.rs

@@ -0,0 +1,25 @@
+//! Safe-ish bindings to parts of x11's xlib module.
+//!
+//! I need this for my project.
+
+#![deny(missing_docs)]
+
+mod display;
+mod drawable;
+mod errors;
+mod event;
+mod gc;
+mod image;
+mod rect;
+mod visual;
+mod window;
+
+pub use self::display::{Display, GetDisplay};
+pub use self::drawable::Drawable;
+pub use self::errors::X11Error;
+pub use self::event::{Event, EventKind};
+pub use self::gc::GC;
+pub use self::image::{Image, ImageByteOrder, PixBuffer};
+pub use self::rect::Rectangle;
+pub use self::visual::Visual;
+pub use self::window::{Window, WindowAttributes};

src/xlib/rect.rs

@@ -2,9 +2,9 @@
 #[derive(Debug)]
 pub struct Rectangle {
     /// x
-    pub x: u32,
+    pub x: i32,
     /// y
-    pub y: u32,
+    pub y: i32,
     /// width
     pub width: u32,
     /// height
@@ -13,7 +13,7 @@ pub struct Rectangle {
 
 impl Rectangle {
     /// Create a new Rectangle from u32s
-    pub fn new(x: u32, y: u32, width: u32, height: u32) -> Self {
+    pub fn new(x: i32, y: i32, width: u32, height: u32) -> Self {
         Rectangle {
             x,
             y,
@@ -21,4 +21,4 @@ impl Rectangle {
             height,
         }
     }
-}
+}

src/xlib/visual.rs

@@ -1,6 +1,6 @@
 use x11::xlib as x;
 
-use Display;
+use xlib::Display;
 
 /// A wrapper around a Visual
 pub struct Visual {

src/xlib/window.rs

@@ -1,13 +1,10 @@
 use std::mem;
 
-use imlib2::Drawable;
+// use imlib2::Drawable;
 use libc;
 use x11::xlib as x;
 
-use Display;
-use Image;
-use Rectangle;
-use X11Error;
+use xlib::{Display, Drawable, GetDisplay, Image, Rectangle, X11Error};
 
 /// A wrapper around a window handle.
 #[derive(Copy, Clone, PartialEq, Eq)]
@@ -67,36 +64,44 @@ impl Window {
         }
     }
 
-    /// Capture a snapshot of this window.
-    pub fn get_image(&self) -> Result<Image, X11Error> {
-        let attr = self.get_attributes()?;
-        let image = unsafe {
-            x::XGetImage(
-                self.display,
-                self.inner,
-                attr.get_x(),
-                attr.get_y(),
-                attr.get_width(),
-                attr.get_height(),
-                0xffffffff,
-                x::ZPixmap,
-            )
-        };
-        Ok(Image { inner: image })
-    }
-
     /// Get the raw window handle
     pub fn as_raw(&self) -> x::Window {
         self.inner
     }
-}
 
-impl AsRef<Drawable> for Window {
-    fn as_ref(&self) -> &Drawable {
-        &self.inner
+    /// Get image
+    pub fn get_image(&self) -> Result<Image, X11Error> {
+        let attr = self.get_attributes()?;
+        Drawable::get_image(
+            self,
+            Rectangle::new(
+                attr.get_x(),
+                attr.get_y(),
+                attr.get_width(),
+                attr.get_height(),
+            ),
+        )
     }
 }
 
+impl GetDisplay for Window {
+    fn get_display(&self) -> *mut x::Display {
+        self.display
+    }
+}
+
+impl Drawable for Window {
+    fn as_drawable(&self) -> x::Drawable {
+        self.inner
+    }
+}
+
+// impl AsRef<Drawable> for Window {
+//     fn as_ref(&self) -> &Drawable {
+//         &self.inner
+//     }
+// }
+
 impl WindowAttributes {
     /// Gets the width of the window
     pub fn get_x(&self) -> i32 {

xlib/Cargo.toml

@@ -1,11 +0,0 @@
-[package]
-name = "xlib"
-description = "Safe-ish bindings to xlib (or at least the parts that I need)"
-version = "0.1.0"
-authors = ["Michael Zhang <failed.down@gmail.com>"]
-
-[dependencies]
-failure = "0.1"
-imlib2 = { path = "../imlib2" }
-libc = "0.2"
-x11 = { version = "2.18", features = ["xlib"] }

xlib/src/lib.rs

@@ -1,26 +0,0 @@
-//! Safe-ish bindings to parts of x11's xlib module.
-//!
-//! I need this for my project.
-
-#![deny(missing_docs)]
-
-#[macro_use]
-extern crate failure;
-extern crate imlib2;
-extern crate libc;
-extern crate x11;
-
-mod display;
-mod errors;
-mod image;
-mod visual;
-mod rect;
-mod window;
-
-pub use display::Display;
-pub use errors::X11Error;
-pub use image::{Image, ImageByteOrder, PixBuffer};
-pub use visual::Visual;
-pub use rect::Rectangle;
-pub use window::{Window, WindowAttributes};
-