Commit Graph

10 Commits

Author SHA1 Message Date
07cefb6499 Menus and Menu Bars
* New and completed widgets: Menu, MenuButton and MenuBar.
* MenuButton is a kind of Button that opens a popup Menu when clicked.
* MenuBar is a container of buttons designed to be attached to the top
  of an application window ("File, Edit, View, Help")
* Supervisor manages the popup menus with its new concept of a Modal
  Widget. Modal widgets take exclusive event priority for all mouse and
  key events. The pop-up menu is a modal window, which means you must
  click an option inside the menu OR clicking outside the menu will
  close it and eat your click event (widgets outside the modal don't
  receive events, but the modal itself gets an event that you've done
  this).
2020-06-04 00:50:23 -07:00
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
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
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
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
3e73a6effb Change types int32 -> int per upstream render library 2019-12-27 19:12:00 -08:00
039f0e6338 Fix some import paths 2019-12-27 16:46:38 -08:00
e391e703bf Cut lib/render into its own package, change all imports 2019-12-22 18:21:58 -08:00
aaa795245a UI: Fix packing bug in the GUITest 2019-04-19 15:08:00 -07:00
7661f9873c Code Layout Refactor
* All private Doodle source code into the pkg/ folder.
* Potentially public code into the lib/ folder.
* Centralize the logger into a subpackage.
2019-04-09 17:35:44 -07:00