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Nion UI framework.

Project description

Introduction

This is a UI library that can run with a pyqt, PySide2, or nionui-tool backend.

Changelog (nionui)

0.4.4 (2020-12-07)

  • Execute context menus actions by queue to fix crashes.

0.4.3 (2020-11-13)

  • Extend declarative list box to support item tool tips and context menu.
  • Add mechanism to request window close from within event loop.

0.4.2 (2020-11-06)

  • Add ability to determine whether a canvas item is interacting with user.
  • Add ability to add actions to context menus.
  • Improve look of pose dialog.

0.4.1 (2020-09-03)

  • Improve capabilities of window closing workflow.
  • Fix issues with file dialogs in PyQt version.

0.4.0 (2020-08-31)

  • Add support for declarative pop-up window (preliminary).
  • Improve key handling in list widget.
  • Improve handling of slider value to avoid update cycles in multiple sliders bound to same value.
  • Spacing in item-bound rows/columns now works.
  • Add a declarative image widget.
  • Allow custom bindings in declarative handlers.
  • Allow binding to push button and check box text content.
  • Add support for declarative polymorphic components using get_resource and examples.
  • Add support for declarative list box.
  • Add support for specifying expanding declarative items (horizontal/vertical-size-policy).
  • Add show_ok_dialog and show_ok_cancel_dialog methods to application class.
  • Add run_ui to application for running simple declarative windows.
  • Add functions for opening file dialogs without a window.
  • Add support for adjusting menus at the application level.
  • Add function to truncate string to pixel width.
  • Add color/font methods to eliminate need for stylesheet properties.
  • Improve handling of scrolling when changing list selection.
  • Add UI function to retrieve default cursor tolerance for hit testing.
  • Add basic notification dialog when actions report warnings/errors.
  • Consolidate default behavior (dock windows, window closing, etc.).
  • Add backend support for multi-threaded section-serialized rendering.
  • Add backend support for section by section drawing for improved performance.
  • Add latency display capability with rolling average to backend.
  • Fix drawing bugs (nested layers, startup race condition, thread shutdown).
  • Introduce action architecture for declarative menus and key bindings.
  • Add support for “name” keyword for declarative row and column widgets.

0.3.27 (2020-02-27)

  • Fix tool tip handling (incorrect recursive implementation caused UI hangs).
  • Add support for layer caching (optimized drawing, part 1).

0.3.26 (2020-01-08)

  • Add support for dynamic tool tips in canvas items and list items.
  • Change default logging level to INFO (was DEBUG).
  • Add ability to register declarative components.
  • Add preliminary support for PySide2 (similar to PyQt).
  • Add unbind methods to complement all bind methods.

0.3.25 (2019-10-24)

  • Add icon to push button. Add binding to both push button text and icon.
  • Add binding to enabled/visible/tool_tip and size properties for all declarative elements.
  • Fix minor checkbox issue in PyQt.
  • Improve ability to handle stacked canvas items during drag and drop.
  • Extend list canvas item to support drag and drop on items.
  • Fix issues with SVG 1.1 compatibility (use ‘none’ in place of ‘transparent’, opacity).
  • Do not select list item if click handled in delegate mouse_pressed_in_item method.

0.3.24 (2019-06-27)

  • Fix problem clearing tasks. Add ability to clear queued tasks too.
  • Fix problem leaking threads in PyCanvas in PyQt backend.
  • Extend sizing policy support.
  • Expand capabilities of StringListWidget. Stricter keyword arguments too.
  • Implement high quality image rendering in PyQt backend.

0.3.23 (2019-04-17)

  • Fix byte ordering bug when exporting RGB data to SVG (includes complex data displays).
  • Do not automatically using expanding layout when setting min-width or min-height on widget.
  • Add ‘expanded’ property to SectionWidget for programmatic control.
  • Fix issue to avoid combo box having dangling update after close.
  • Fix another issue with closing dynamic components.

0.3.22 (2019-02-27)

  • Fix skewing issue drawing raster images with odd widths in pyqt UI.
  • Fix issues with dynamic declarative components.
  • Keep selection (by index) on combo box, if possible, when replacing items.

0.3.21 (2019-01-07)

  • Add 2 pixel margin to tree widget to avoid undesired scrolling behavior.
  • Add text edit widget to declarative.
  • Allow window show method to specify position and size.

0.3.20 (2018-12-11)

  • Fix issue with drawing context when writing RGB data to SVG.
  • Load resources using pkgutil to be more compatible with embedding.
  • Add bitmap loader based on imageio.
  • Improve exception handling in pyqt callbacks to avoid crashes.

0.3.19 (2018-11-28)

  • Fix issues with line edits: returns, escapes, and editing finished events.
  • Fix issue with menu items being enabled for key shortcuts.
  • Add support for window level key handling.

0.3.17 (2018-11-13)

  • Add ability to specify width on declarative label, push button, combo box.
  • Fix problem comparing keyboard modifiers in pyqt.
  • Add text button widget.
  • Fix text color in SVG.

0.3.16 (2018-07-23)

  • Python 3.7 compatibility (command launcher).

0.3.15 (2018-06-25)

  • Fix combo box initialization issue.

0.3.14 (2018-06-18)

  • Fix issue with splitters. Also add snapping to 1/3, 1/2, and 2/3 points.
  • Fix bugs with PyQt backend (color maps, export image).

0.3.13 (2018-05-18)

  • Fix bugs with PyQt backend (gradients).

0.3.12 (2018-05-15)

  • DPI aware drawing code.

0.3.11 (2018-05-12)

  • Initial version online.

Copyright (c) 2013-2020 Nion Company

Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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