139 lines
5.7 KiB
Factor
139 lines
5.7 KiB
Factor
USING: colors documents fonts help.markup help.syntax help.tips models
|
|
sequences strings ui.commands ui.gadgets ui.gadgets.line-support
|
|
ui.gadgets.scrollers ;
|
|
IN: ui.gadgets.editors
|
|
|
|
HELP: <multiline-editor>
|
|
{ $values { "editor" multiline-editor } }
|
|
{ $description "Creates a new multi-line editor gadget." } ;
|
|
|
|
HELP: editor
|
|
{ $class-description "An editor is a control for editing a multi-line passage of text stored in a " { $link document } " model. Editors are created by calling " { $link <editor> } "."
|
|
$nl
|
|
"Editors have the following slots:"
|
|
{ $list
|
|
{ { $snippet "caret" } " - a " { $link model } " storing a line/column pair." }
|
|
{ { $snippet "mark" } " - a " { $link model } " storing a line/column pair. If there is no selection, the mark is equal to the caret, otherwise the mark is located at the opposite end of the selection from the caret." }
|
|
{ { $snippet "focused?" } " - a boolean." }
|
|
} }
|
|
{ $see-also line-gadget } ;
|
|
|
|
HELP: <editor>
|
|
{ $values { "editor" "a new " { $link editor } } }
|
|
{ $description "Creates a new " { $link editor } " with an empty document." } ;
|
|
|
|
{ editor-caret editor-mark } related-words
|
|
|
|
HELP: editor-caret
|
|
{ $values { "editor" editor } { "loc" "a pair of integers" } }
|
|
{ $description "Outputs the current caret location as a line/column number pair." } ;
|
|
|
|
HELP: editor-mark
|
|
{ $values { "editor" editor } { "loc" "a pair of integers" } }
|
|
{ $description "Outputs the current mark location as a line/column number pair." } ;
|
|
|
|
HELP: change-caret
|
|
{ $values { "editor" editor } { "quot" { $quotation ( loc document -- newloc ) } } }
|
|
{ $description "Applies a quotation to the current caret location and moves the caret to the location output by the quotation." } ;
|
|
|
|
{ change-caret change-caret&mark mark>caret } related-words
|
|
|
|
HELP: mark>caret
|
|
{ $values { "editor" editor } }
|
|
{ $description "Moves the mark to the caret location, effectively deselecting any selected text." } ;
|
|
|
|
HELP: change-caret&mark
|
|
{ $values { "editor" editor } { "quot" { $quotation ( loc document -- newloc ) } } }
|
|
{ $description "Applies a quotation to the current caret location and moves the caret and the mark to the location output by the quotation." } ;
|
|
|
|
HELP: point>loc
|
|
{ $values { "point" "a pair of integers" } { "editor" editor } { "loc" "a pair of integers" } }
|
|
{ $description "Converts a point to a line/column number pair." } ;
|
|
|
|
HELP: scroll>caret
|
|
{ $values { "editor" editor } }
|
|
{ $description "Ensures that the caret becomes visible in a " { $link scroller } " containing the editor. Does nothing if no parent of " { $snippet "gadget" } " is a " { $link scroller } "." } ;
|
|
|
|
HELP: remove-selection
|
|
{ $values { "editor" editor } }
|
|
{ $description "Removes currently selected text from the editor's " { $link document } "." } ;
|
|
|
|
HELP: <model-field>
|
|
{ $values { "model" model } { "gadget" editor } }
|
|
{ $description "Creates an editor gadget which targets the specified model. The model must contain a string, or another item with a defined " { $link length } ", as this will be checked during layout." } ;
|
|
|
|
HELP: <action-field>
|
|
{ $values { "quot" { $quotation ( string -- ) } } { "gadget" editor } }
|
|
{ $description "Creates an editor gadget with a blank model. Whenever a value is entered into the editor and Return pressed, the value is pushed on the stack as a string and the specified quotation is called. Note that the quotation cannot update the value in the field." } ;
|
|
|
|
|
|
HELP: editor-string
|
|
{ $values { "editor" editor } { "string" string } }
|
|
{ $description "Outputs the contents of the editor's " { $link document } " as a string. Lines are separated by " { $snippet "\\n" } "." } ;
|
|
|
|
|
|
|
|
HELP: set-editor-string
|
|
{ $values { "string" string } { "editor" editor } }
|
|
{ $description "Sets the contents of the editor's " { $link document } " to a string, which may use either " { $snippet "\\n" } ", " { $snippet "\\r\\n" } " or " { $snippet "\\r" } " line separators." } ;
|
|
|
|
ARTICLE: "gadgets-editors-selection" "The caret and mark"
|
|
"If there is no selection, the caret and the mark are at the same location; otherwise the mark delimits the end-point of the selection opposite the caret."
|
|
{ $subsections
|
|
editor-caret
|
|
editor-mark
|
|
change-caret
|
|
change-caret&mark
|
|
mark>caret
|
|
}
|
|
"Getting the selected text:"
|
|
{ $subsections
|
|
gadget-selection?
|
|
gadget-selection
|
|
}
|
|
"Removing selected text:"
|
|
{ $subsections remove-selection }
|
|
"Scrolling to the caret location:"
|
|
{ $subsections scroll>caret }
|
|
"Use " { $link user-input* } " to change selected text." ;
|
|
|
|
ARTICLE: "gadgets-editors-contents" "Getting and setting editor contents"
|
|
{ $subsections
|
|
editor-string
|
|
set-editor-string
|
|
clear-editor
|
|
} ;
|
|
|
|
ARTICLE: "gadgets-editors-commands" "Editor gadget commands"
|
|
{ $command-map editor "editing" }
|
|
{ $command-map editor "caret-motion" }
|
|
{ $command-map editor "selection" }
|
|
{ $command-map editor "clipboard" }
|
|
{ $command-map multiline-editor "multiline" } ;
|
|
|
|
ARTICLE: "ui.gadgets.editors" "Editor gadgets"
|
|
"The " { $vocab-link "ui.gadgets.editors" } " vocabulary implements editor gadgets. An editor edits a passage of text. Editors display a " { $link document } ". Editors are built from and inherit all features of " { $link "ui.gadgets.line-support" } "."
|
|
{ $subsections "gadgets-editors-commands" }
|
|
"Editors:"
|
|
{ $subsections
|
|
editor
|
|
<editor>
|
|
"gadgets-editors-contents"
|
|
"gadgets-editors-selection"
|
|
}
|
|
"Multiline editors:"
|
|
{ $subsections <multiline-editor> }
|
|
"Fields:"
|
|
{ $subsections
|
|
<model-field>
|
|
<action-field>
|
|
}
|
|
"Editors edit " { $emphasis "documents" } ":"
|
|
{ $subsections "documents" } ;
|
|
|
|
TIP: "Editor gadgets support undo and redo; press " { $command editor "editing" com-undo } " and " { $command editor "editing" com-redo } "." ;
|
|
|
|
TIP: "Learn the keyboard shortcuts used in " { $link "ui.gadgets.editors" } "." ;
|
|
|
|
ABOUT: "ui.gadgets.editors"
|