Changes

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{{hig-subnav-intra|p_page=Text and Fonts|c_section=The Sugar Interface|c_page=Toolbars|n_page=Rollovers}}

{{hig-subnav-intra|p_page=Text and Fonts|c_section=The Sugar Interface|c_page=Toolbars|n_page=Rollovers}}

===Toolbars===

===Toolbars===

Every activity will have a "Toolbox" at the top edge of the screen.  The Toolbox consists of a set of (at least one) toolbars, individually selectable via the tabs beneath them.  Placement of the tabs beneath the toolbars themselves makes selection of tools and buttons within the toolbars easier according to Fitts' Law, since they will remain against the screen edges where they are "un-missable."  Though this makes the tabs slightly more difficult to activate, we anticipate the frequency with which these toolbars require explicit switching to be minimal, specifically due to their contextual nature as described below.

Every activity will have a "Toolbox" at the top edge of the screen.  The Toolbox consists of a set of (at least one) toolbars, individually selectable via the tabs beneath them.  Placement of the tabs beneath the toolbars themselves makes selection of tools and buttons within the toolbars easier according to Fitts' Law, since they will remain against the screen edges where they are "un-missable."  Though this makes the tabs slightly more difficult to activate, we anticipate the frequency with which these toolbars require explicit switching to be minimal, specifically due to their contextual nature as described below.

'''Undo/Redo:''' The undo/redo commands have extremely high importance on the laptops, since their presence encourages creative exploration without the fear of unrecoverable changes.  They should function in a manner chosen by the activity, and although that manner should reflect our current expectations, the collaborate nature of most activities complicates the matter to some extent.  A broad approach to managing collaborative undos requires a general notion of collisions between editing events.  The [http://www.abisource.com/twiki/bin/view/Abiword/AbiCollab AbiCollab tools] which make the Write activity possible define this idea in detail in relation to text-based editing.  The overall concept applies generally:  For instance, a collision in a drawing activity could mean the collision of the bounding boxes of two drawn shapes.  The secondary rollovers for the "undo" and "redo" buttons contain "undo all" (essentially revert) and "redo all" functionality.  When supported, these controls should be the left-most item in the toolbar.

'''Undo/Redo:''' The undo/redo commands have extremely high importance on the laptops, since their presence encourages creative exploration without the fear of unrecoverable changes.  They should function in a manner chosen by the activity, and although that manner should reflect our current expectations, the collaborative nature of most activities complicates the matter to some extent.  A broad approach to managing collaborative undos requires a general notion of collisions between editing events.  The [http://www.abisource.com/twiki/bin/view/Abiword/AbiCollab AbiCollab tools] which make the Write activity possible define this idea in detail in relation to text-based editing.  The overall concept applies generally:  For instance, a collision in a drawing activity could mean the collision of the bounding boxes of two drawn shapes.  The secondary rollovers for the "undo" and "redo" buttons contain "undo all" (essentially revert) and "redo all" functionality.  When supported, these controls should be the left-most item in the toolbar.

'''Copy/Paste:''' Sugar has a fully featured clipboard within the Frame, and as such we want to encourage children to copy and paste text, images, or anything else both within and between activities freely .  The copy/paste, reuse, reorganize, modify, and share approach is core to the educational and creative experience that the laptops are designed for.  We've simplified the paradigm, eliminating "cut" command from the top level editing commands.  The distinction between "cut" an "copy" can seem unclear to those unfamiliar with computing, and so we've chosen to embed "cut" functionality in the secondary rollover beneath the "copy" button, and called it "copy and erase."  When present, these controls should be left-aligned, immediately following the undo/redo commands.

'''Copy/Paste:''' Sugar has a fully featured clipboard within the Frame, and as such we want to encourage children to copy and paste text, images, or anything else both within and between activities freely .  The copy/paste, reuse, reorganize, modify, and share approach is core to the educational and creative experience that the laptops are designed for.  We've simplified the paradigm, eliminating "cut" command from the top level editing commands.  The distinction between "cut" an "copy" can seem unclear to those unfamiliar with computing, and so we've chosen to embed "cut" functionality in the secondary rollover beneath the "copy" button, and called it "copy and erase."  When present, these controls should be left-aligned, immediately following the undo/redo commands.