compiz-mag
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| = A simple on-screen keyboard = | ##(see the SpecSpec for an explanation) |
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| * '''Launchpad Entry''': * '''Created''': 2006-06-02 by HenrikOmma * '''Contributors''': HenrikOmma, SvenJaborek * '''Packages affected''': * '''Status:''' '''BRAINDUMP''' |
''Please check the status of this specification in Launchpad before editing it. If it is Approved, contact the Assignee or another knowledgeable person before making changes.'' * '''Launchpad Entry''': UbuntuSpec:compiz-mag * '''Packages affected''': compiz |
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| A new screen magnifier using XGL-based rendering technology. | Extend the beryl zoom plugin with cursor tracking functionality to provide a powerful magnifier for low vision users. == Release Note == Leveraging the compositing power of Compiz/Beryl we have created a next-generation magnifier for low-vision users. The new technology is both more responsive and more user friendly than previos tools. |
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| gnome-mag is slow. XGL hold the promise for much better magnification rendering. | The current magnifier gnome-mag is slow and resource instensive. compiz can rovide much better magnification rendering via hardware accelleration. |
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| == Use cases == | == Use Cases == |
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| === Reading a news website === | |
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| == Scope == | [http://news.bbc.co.uk/2/hi/business/6610901.stm This] (randomly chosen) news page has both text and pictures and a great deal of non-essential navigation items. A low-vision user wants to get a general overview at 2x zoom, but wants to read the text at 8x zoom. With compiz-mag she can switch between the two with a keystroke. == Assumptions == |
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| * Fixed zoom factors - user-defined zoom levels that can be accessed with a hotkey * Follow the text-entry cursor - using AT-SPI magic to get the location * Jump to window that gains focus * Different panning modes, including central cursor and edge-push (see gnome-mag) * Mouse cursors - different size and colour options and a cross cursor * Sensitivity of zooming and panning should be configurable * Define the zoom region to be part of or the whole screen * Variable zoom factor - adjust using keys or mouse wheel |
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| * extend the compiz plugin to be controllable from external applications * Direct cursor tracking with information from AT-SPI * dbus for communication between apps == Test/Demo Plan == |
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| == Outstanding issues == | == Outstanding Issues == |
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| == References == | ---- CategorySpec |
Please check the status of this specification in Launchpad before editing it. If it is Approved, contact the Assignee or another knowledgeable person before making changes.
Launchpad Entry: compiz-mag
Packages affected: compiz
Summary
Extend the beryl zoom plugin with cursor tracking functionality to provide a powerful magnifier for low vision users.
Release Note
Leveraging the compositing power of Compiz/Beryl we have created a next-generation magnifier for low-vision users. The new technology is both more responsive and more user friendly than previos tools.
Rationale
The current magnifier gnome-mag is slow and resource instensive. compiz can rovide much better magnification rendering via hardware accelleration.
Use Cases
Reading a news website
[http://news.bbc.co.uk/2/hi/business/6610901.stm This] (randomly chosen) news page has both text and pictures and a great deal of non-essential navigation items. A low-vision user wants to get a general overview at 2x zoom, but wants to read the text at 8x zoom. With compiz-mag she can switch between the two with a keystroke.
Assumptions
Design
- Fixed zoom factors - user-defined zoom levels that can be accessed with a hotkey
- Follow the text-entry cursor - using AT-SPI magic to get the location
- Jump to window that gains focus
- Different panning modes, including central cursor and edge-push (see gnome-mag)
- Mouse cursors - different size and colour options and a cross cursor
- Sensitivity of zooming and panning should be configurable
- Define the zoom region to be part of or the whole screen
- Variable zoom factor - adjust using keys or mouse wheel
Implementation
- extend the compiz plugin to be controllable from external applications
- Direct cursor tracking with information from AT-SPI
- dbus for communication between apps
Test/Demo Plan
Outstanding Issues
BoF agenda and discussion
Accessibility/Specs/compiz-mag (last edited 2008-08-06 16:31:25 by localhost)