Commit Graph

11 Commits (e2a561fbd04c583a74b71031d4ce18e88224f7e8)

Author SHA1 Message Date
Noah 36db160533 Window Manager Buttons and Bugfixes
* Fix Supervisor event issues wrt. the window manager feature: if a
  focused window exists and Supervisor is running events for the "other"
  widgets not in managed windows, and the mouse cursor is over the
  rectangle of THE focused window, no widget under the cursor receives
  active (hover, click) events. Prevents being able to click "through"
  the window and interact with widgets and other windows below.
* Adds Close, Maximize and Minimize buttons to windows. Maximize is
  still buggy and Minimize is implementation-defined behavior with no
  default event handler configured.
* eg/windows has an example of the Window Manager for SDL2 and
  WebAssembly targets.
2020-04-08 17:29:04 -07:00
Noah 7d9ba79cd2 Window Manager Basics, Work in Progress
* Adds Window Manager support to the Supervisor, so that Window widgets
  can be dragged by their title bar, clicked to focus, etc.
* Create a ui.Window as normal, but instead of Packing or Placing it
  into a parent container as before, you call .Supervise() and give it
  your Supervisor. The window registers itself to be managed and drawn
  by the Supervisor itself.
* Supervisor manages the focused window order using a doubly linked
  list. When a window takes focus it moves to the top of the list.
  Widgets in the active window take event priority.
* Extended DragDrop API to support holding a widget pointer in the drag
  operation.
* Changed widget event Handle functions to return an error: so that they
  could return ErrStopPropagation to prevent events going to more
  widgets once handled (for important events).

Some bugs remain around overlapping windows and event propagation.
2020-04-06 22:57:28 -07:00
Noah f9b305679a Tooltip Widget and Event Refactor
* Tooltip can be added to any target widget (e.g. Button) and pop up on
  mouse over.
* Refactor the event system. Instead of passing a render.Point to all
  event handlers, pass an EventData struct which can hold the Point or
  the render.Engine.
* Add event types Computed and Present, so a widget can set a handler on
  whenever its Computed or Present method is called.
2020-03-09 17:13:33 -07:00
Noah 0846fe22fc Place Strategy for Frame Widget 2020-03-08 22:07:46 -07:00
Noah 4ba563d48d Supervisor, Frame Pack and Misc Fixes
* Button: do not call MoveTo inside of Compute().
* Label: do not call MoveTo inside of Compute().
* MainWindow: add OnLoop callback function support so you can run custom code
  each loop and react to the event.State before the UI updates.
* Supervisor: locate widgets using AbsolutePosition() instead of w.Point()
  to play nice with Frame and Window packed widgets.
* Widget interface: rename Adopt() to SetParent() which makes more sense for
  what the function actually does.
* Window: set itself as the parent of the body Frame so that the Supervisor
  can locate widgets anywhere inside a window's frames.

Frame packing fixes:

* Widgets with Expand:true grow their space with ResizeAuto to preserve the
  FixedSize() boolean, instead of being hard-resized to fill the Frame.
* Widgets that Fill their space are resized with ResizeAuto too.

Outstanding bugs:

* Labels don't expand (window title bars, etc.)
2019-12-29 00:00:03 -08:00
Noah 3e73a6effb Change types int32 -> int per upstream render library 2019-12-27 19:12:00 -08:00
Noah 2f5b498ca1 Add README, LICENSE and Examples 2019-12-27 16:06:24 -08:00
Noah e391e703bf Cut lib/render into its own package, change all imports 2019-12-22 18:21:58 -08:00
Noah 5450f40b3c render: Refactor Events System to Make Module Standalone
* Refactor the events used in lib/render/sdl to be more general-purpose
  to make librender a stand-alone library separate from Doodle.
2019-12-22 14:11:01 -08:00
Noah 0efc577fa7 Initial WebAssembly Build Target
* Initial WebAssembly build target for Doodle in the wasm/ folder.
* Add a new render.Engine implementation, lib/render/canvas that uses
  the HTML 5 Canvas API instead of SDL2 for the WebAssembly target.
  * Ported the basic DrawLine(), DrawBox() etc. functions from SDL2 to
    Canvas context2d API.
  * Fonts are handled with CSS embedded fonts named after the font
    filename and defined in wasm/index.html
* `make wasm` builds the WASM program, and `make wasm-serve` runs a dev
  Go server that hosts the WASM file for development. The server also
  watches the dev tree for *.go files and rebuilds the WASM binary
  automatically on change.
* This build "basically" runs the game. UI and fonts all work and mouse
  movements and clicks are detected. No wallpaper support yet or texture
  caching (which will crash the game as soon as you click and draw a
  pixel in your map!)
2019-06-26 18:40:40 -07:00
Noah aceb7e7a7e UI: Add MainWindow Widget and start an example app
* MainWindow is ideal for apps that just want a UI and
  don't manage their own SDL windows.
* The example app will grow into a series of demos that
  test the UI toolkit to help fix bugs and grow features.
2019-06-08 17:03:59 -07:00