Under ubuntu the menus are ubuntu colors instead of grey. Under mac os x, the splash screen's progress bar is slightly taller.
Robby On Thu, Oct 28, 2010 at 12:42 PM, Matthew Flatt <mfl...@cs.utah.edu> wrote: > The version number on GRacket2 right now is 5.0.2.2. > > At Thu, 28 Oct 2010 11:26:43 -0600, Jon Rafkind wrote: >> Maybe I screwed something up but I can't tell if I'm running gr2 or not. >> I built the gr2 branch and ran drscheme but so far it looks exactly the >> same as gr1 (which I am positive is actually gr1). >> >> Is there an easy way to tell if I'm running gr2? Or should gr2 look >> identical to gr1? >> >> On 10/28/2010 12:25 AM, Matthew Flatt wrote: >> > The git repository now includes a "gr2" branch for the new >> > implementation of `racket/gui', which we've been informally calling >> > "GRacket2". >> > >> > The new `racket/gui' is intended to be mostly compatible with the >> > current library, but there are some significant incompatibilities. >> > Those differences are described below in a copy of the "Porting from >> > v5.0.x to vX.Y" notes that are linked from the "Release Notes" page of >> > the documentation. >> > >> > "GRacket2" is a misnomer in the sense that you can use the new >> > `racket/gui' with just `racket'. Furthermore, the drawing layer is >> > mostly unbundled from the GUI layer into a separate `racket/draw' >> > library, so you can manipulate images without a GUI (e.g., without an >> > X11 connection). The documentation doesn't yet reflect the GUI--Draw >> > split, Slideshow's pict library doesn't yet use `racket/draw', etc., >> > but I hope to get to that next. >> > >> > More immediately, it's time for you to try out the "gr2" branch for >> > everyday work. I've switched to GRacket2 for SirMail, Slideshow, and >> > DrRacket --- even during lecture. All library functionality is in >> > place, but I'm sure that gaps and problems will show up as we put the >> > library to work (and I know that some of the tests still fail). I >> > expect to see many bug reports; once the bug reports slow down, I'll >> > take that as a sign that GRacket2 can move to master branch. >> > >> > ---------------------------------------- >> > >> > GRacket, Racket, Drawing, and GUIs >> > ---------------------------------- >> > >> > Version X.Y includes two major changes to the Racket drawing and GUI >> > API: >> > >> > * The drawing portion of the GUI toolbox is now available as a >> > separate layer: `racket/draw'. This layer can be used independent >> > of the `racket/gui/base' library, although `racket/gui' re-exports >> > `racket/draw'. >> > >> > (The `racket/draw' library is built on top of the widely used Cairo >> > drawing library and Pango text-rendering library.) >> > >> > * The GRacket executable is no longer strictly necessary for running >> > GUI programs; the `racket/gui/base' library can be used from >> > Racket. >> > >> > The GRacket executable still offers some additional GUI-specific >> > functiontality however. Most notably, GRacket is a GUI application >> > under Windows (as opposed to a console application, which is >> > launched slightly differently by the OS), GRacket is a bundle under >> > Mac OS X (so the dock icon is the Racket logo, for example), and >> > GRacket manages single-instance mode for Windows and X. >> > >> > The drawing and GUI libraries have also changed in further small ways. >> > >> > >> > Bitmaps >> > ------- >> > >> > Drawing to a bitmap may not produce the same results as drawing to a >> > canvas. Use the `make-screen-bitmap' function (from `racket/gui') or >> > the `make-bitmap' method of `canvas%' to obtain a bitmap that uses the >> > same drawing algorithms as a canvas. >> > >> > A color bitmap can have an alpha channel, instead of just a mask >> > bitmap. When drawing a bitmap, alpha channels are used more >> > consistently and automatically than mask bitmaps. More significantly, >> > drawing into a bitmap with an alpha channel preserves the drawn >> > alphas; for example, drawing a line in the middle of an empty bitmap >> > produces an image with non-zero alpha only at the drawn line. >> > >> > Only bitmaps created with the new `make-gl-bitmap' function support >> > OpenGL drawing. >> > >> > Use the new `make-bitmap', `read-bitmap', `make-monochrome-bitmap', >> > `make-screen-bitmap', and `make-gl-bitmap' functions to create >> > bitmaps, instead of using `make-object' with `bitmap%'. The new >> > constructors are less overloaded and provide more modern defaults >> > (such as alpha channels by default). >> > >> > Image formats can be read into a `bitmap%' from from input ports, >> > instead of requiring a file path. A newly created bitmap has an empty >> > content (i.e., white with zero alpha), instead of unspecified content. >> > >> > >> > Canvases >> > -------- >> > >> > Drawing to a canvas always draws into a bitmap that is kept offscreen >> > and periodically flushed onto the screen. The new `suspend-flush' and >> > `resume-flush' methods of `canvas%' provide some control over the >> > timing of the flushes, which in many cases avoids the need for >> > (additional) double buffering of canvas content. >> > >> > OpenGL drawing in a canvas requires supplying 'gl as a style when >> > creating the `canvas%' instance. OpenGL and normal dc<%> drawing no >> > longer mix reliably in a canvas. >> > >> > >> > Drawing-Context Transformations >> > ------------------------------- >> > >> > A `dc<%>' instance supports rotation (via `set-rotation'), negative >> > scaling factors for flipping, and a general transformation matrix (via >> > `set-initial-matrix'). A transformation matrix has the form `(vector >> > xx xy yx yy x0 y0)', where a point (x1, y1) is transformed to a point >> > (x2, y2) with x2 = xx*x1 + yx*y1 + x0 and y2 = xy*x1 + yy*y1 + y0, >> > which is the usual convention. >> > >> > New methods `translate', `scale', `rotate', and `transform' simplify >> > adding a further translation, scaling, rotation, or arbitrary matrix >> > transformation on top of the current transformation. The new >> > `get-translation' and `set-translation' methods help to capture and >> > restore transformation settings. >> > >> > The old translation and scaling transformations apply after the >> > initial matrix. The new rotation transformation applies after the >> > other transformations. This layering is redundant, since all >> > transformations can be expressed in a single matrix, but it is >> > backward-compatibile. Methods like `get-translation', >> > `set-translation', `scale', etc. help hide the reundancy. >> > >> > >> > Others Drawing-Context Changes >> > ------------------------------ >> > >> > The alpha value of a `dc<%>' (as set by `set-alpha') is used for all >> > drawing operations, including drawing a bitmap. >> > >> > The `draw-bitmap' and `draw-bitmap-section' methods now smooth bitmaps >> > while scaling, so the `draw-bitmap-section-smooth' method of >> > `bitmap-dc%' simply calls `draw-bitmap-section'. >> > >> > A `region%' can be created as independent of any `dc<%>', in which >> > cases it uses the drawing context's current transformation at the time >> > that it is installed as a clipping region. >> > >> > The old 'xor mode for pens and brushes is no longer available (since >> > it is not supported by Cairo). >> > >> > >> > Editor Changes >> > -------------- >> > >> > The `draw-caret' argument to a `snip%' or `editor<%>' `draw' or >> > `refresh' method can be a pair, which indicates that the caret is >> > owned by an enclosing display and the selection spans the snip or >> > editor. In that case, the snip or editor should refrain from drawing a >> > background for the selected region, and it should draw the foreground >> > in the color specified by `get-highlight-text-color', if any. >> > >> > >> > Removed Functions >> > ----------------- >> > >> > The `write-resource, `get-reource', and `send-event' functions have >> > been removed from `racket/gui/base'. If there is any demand for the >> > removed functionality, it will be implemented in a new library. >> > >> > _________________________________________________ >> > For list-related administrative tasks: >> > http://lists.racket-lang.org/listinfo/dev > _________________________________________________ > For list-related administrative tasks: > http://lists.racket-lang.org/listinfo/dev > _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/dev
