Struct TextDisplay

pub struct TextDisplay { /* private fields */ }

Available on crate feature dep_fltk only.

Creates a non-editable text display widget

Trait Implementations

impl Clone for TextDisplay

fn clone(&self) -> TextDisplay

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TextDisplay

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for TextDisplay

fn default() -> TextDisplay

Returns the “default value” for a type.

impl DisplayExt for TextDisplay

fn buffer(&self) -> Option<TextBuffer>

Get the associated TextBuffer

fn set_buffer<B>(&mut self, buffer: B)

where B: Into<Option<TextBuffer>>,

Sets the associated TextBuffer. Since the widget is long-lived, the lifetime of the buffer is prolonged to the lifetime of the program

fn style_buffer(&self) -> Option<TextBuffer>

Get the associated style TextBuffer

fn text_font(&self) -> Font

Return the text font

fn set_text_font(&mut self, font: Font)

Sets the text font

fn text_color(&self) -> Color

Return the text color

fn set_text_color(&mut self, color: Color)

Sets the text color

fn text_size(&self) -> i32

Return the text size

fn set_text_size(&mut self, sz: i32)

Sets the text size

fn scroll(&mut self, top_line_num: i32, h_offset: i32)

Scroll down the Display widget

fn insert(&self, text: &str)

Insert into Display widget

fn set_insert_position(&mut self, new_pos: i32)

Set the insert position

fn insert_position(&self) -> i32

Return the insert position

fn position_to_xy(&self, pos: i32) -> (i32, i32)

Gets the x and y positions of the cursor

fn count_lines(&self, start: i32, end: i32, is_line_start: bool) -> i32

Counts the lines from start to end

fn move_right(&mut self) -> Result<(), FltkError>

Moves the cursor right

fn move_left(&mut self) -> Result<(), FltkError>

Moves the cursor left

fn move_up(&mut self) -> Result<(), FltkError>

Moves the cursor up

fn move_down(&mut self) -> Result<(), FltkError>

Moves the cursor down

fn show_cursor(&mut self, val: bool)

Shows/hides the cursor

fn set_highlight_data<B, E>(&mut self, style_buffer: B, entries: E)

where B: Into<Option<TextBuffer>>, E: Into<Vec<StyleTableEntry>>,

Sets the style of the text widget

fn set_highlight_data_ext<B, E>(&mut self, style_buffer: B, entries: E)

where B: Into<Option<TextBuffer>>, E: Into<Vec<StyleTableEntryExt>>,

Sets the style of the text widget

fn unset_highlight_data<B>(&mut self, style_buffer: B)

where B: Into<Option<TextBuffer>>,

Unset the style of the text widget

fn set_cursor_style(&mut self, style: Cursor)

Sets the cursor style

fn set_cursor_color(&mut self, color: Color)

Sets the cursor color

fn set_scrollbar_size(&mut self, size: i32)

Sets the scrollbar size in pixels

fn set_scrollbar_align(&mut self, align: Align)

Sets the scrollbar alignment

fn cursor_style(&self) -> Cursor

Returns the cursor style

fn cursor_color(&self) -> Color

Returns the cursor color

fn scrollbar_size(&self) -> i32

Returns the scrollbar size in pixels

fn scrollbar_align(&self) -> Align

Returns the scrollbar alignment

fn line_start(&self, pos: i32) -> i32

Returns the beginning of the line from the current position. Returns new position as index

fn line_end(&self, start_pos: i32, is_line_start: bool) -> i32

Returns the ending of the line from the current position. Returns new position as index

fn skip_lines(&mut self, start_pos: i32, lines: i32, is_line_start: bool) -> i32

Skips lines from start_pos

fn rewind_lines(&mut self, start_pos: i32, lines: i32) -> i32

Rewinds the lines

fn next_word(&mut self)

Goes to the next word

fn previous_word(&mut self)

Goes to the previous word

fn word_start(&self, pos: i32) -> i32

Returns the position of the start of the word, relative to the current position

fn word_end(&self, pos: i32) -> i32

Returns the position of the end of the word, relative to the current position

fn x_to_col(&self, x: f64) -> f64

Convert an x pixel position into a column number.

fn col_to_x(&self, col: f64) -> f64

Convert a column number into an x pixel position

fn set_linenumber_width(&mut self, w: i32)

Sets the linenumber width

fn linenumber_width(&self) -> i32

Gets the linenumber width

fn set_linenumber_font(&mut self, font: Font)

Sets the linenumber font

fn linenumber_font(&self) -> Font

Gets the linenumber font

fn set_linenumber_size(&mut self, size: i32)

Sets the linenumber size

fn linenumber_size(&self) -> i32

Gets the linenumber size

fn set_linenumber_fgcolor(&mut self, color: Color)

Sets the linenumber foreground color

fn linenumber_fgcolor(&self) -> Color

Gets the linenumber foreground color

fn set_linenumber_bgcolor(&mut self, color: Color)

Sets the linenumber background color

fn linenumber_bgcolor(&self) -> Color

Gets the linenumber background color

fn set_linenumber_align(&mut self, align: Align)

Sets the linenumber alignment

fn linenumber_align(&self) -> Align

Gets the linenumber alignment

fn in_selection(&self, x: i32, y: i32) -> bool

Checks whether a pixel is within a text selection

fn wrap_mode(&mut self, wrap: WrapMode, wrap_margin: i32)

Sets the wrap mode of the Display widget. If the wrap mode is AtColumn, wrap margin is the column. If the wrap mode is AtPixel, wrap margin is the pixel. For more info

fn wrapped_column(&self, row: i32, column: i32) -> i32

Correct a column number based on an unconstrained position

fn wrapped_row(&self, row: i32) -> i32

Correct a row number from an unconstrained position

fn set_grammar_underline_color(&mut self, color: Color)

Set the grammar underline color

fn grammar_underline_color(&self) -> Color

Get the grammar underline color

fn set_spelling_underline_color(&mut self, color: Color)

Set the spelling underline color

fn spelling_underline_color(&self) -> Color

Get the spelling underline color

fn set_secondary_selection_color(&mut self, color: Color)

Set the secondary selection color

fn secondary_selection_color(&self) -> Color

Get the secondary selection color

fn show_insert_position(&mut self)

Scrolls the text buffer to show the current insert position

impl PartialEq for TextDisplay

fn eq(&self, other: &TextDisplay) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl WidgetBase for TextDisplay

fn new<'a, T>(x: i32, y: i32, width: i32, height: i32, title: T) -> TextDisplay

where T: Into<Option<&'a str>>,

Creates a new widget, takes an x, y coordinates, as well as a width and height, plus a title

fn default_fill() -> TextDisplay

Constructs a widget with the size of its parent

fn delete(wid: TextDisplay)

Deletes widgets and their children.

unsafe fn from_widget_ptr(ptr: *mut Fl_Widget) -> TextDisplay

transforms a widget pointer to a Widget, for internal use

unsafe fn from_widget<W>(w: W) -> TextDisplay

where W: WidgetExt,

Get a widget from base widget

fn handle<F>(&mut self, cb: F)

where F: FnMut(&mut TextDisplay, Event) -> bool + 'static,

Set a custom handler, where events are managed manually, akin to Fl_Widget::handle(int). Handled or ignored events should return true, unhandled events should return false. takes the widget as a closure argument. The ability to handle an event might depend on handling other events, as explained here

fn draw<F>(&mut self, cb: F)

where F: FnMut(&mut TextDisplay) + 'static,

Set a custom draw method. takes the widget as a closure argument. macOS requires that WidgetBase::draw actually calls drawing functions

fn resize_callback<F>(&mut self, cb: F)

where F: FnMut(&mut TextDisplay, i32, i32, i32, i32) + 'static,

Perform a callback on resize. Avoid resizing the parent or the same widget to avoid infinite recursion

unsafe fn assume_derived(&mut self)

Makes the widget derived

fn from_dyn_widget<W>(w: &W) -> Option<TextDisplay>

where W: WidgetExt,

Cast a type-erased widget back to its original widget

fn from_dyn_widget_ptr(w: *mut Fl_Widget) -> Option<TextDisplay>

Cast a type-erased widget pointer back to its original widget

impl WidgetExt for TextDisplay

fn center_x<W>(self, w: &W) -> TextDisplay

where W: WidgetExt,

Initialize center of another widget

fn center_y<W>(self, w: &W) -> TextDisplay

where W: WidgetExt,

Initialize center of another widget

fn with_pos(self, x: i32, y: i32) -> TextDisplay

Initialize to a position x, y

fn with_size(self, width: i32, height: i32) -> TextDisplay

Initialize to size width, height

fn with_label(self, title: &str) -> TextDisplay

Initialize with a label

fn with_align(self, align: Align) -> TextDisplay

Initialize with alignment

fn with_type<T>(self, typ: T) -> TextDisplay

where T: WidgetType,

Initialize with type

fn below_of<W>(self, wid: &W, padding: i32) -> TextDisplay

where W: WidgetExt,

Initialize at bottom of another widget

fn above_of<W>(self, wid: &W, padding: i32) -> TextDisplay

where W: WidgetExt,

Initialize above of another widget

fn right_of<W>(self, wid: &W, padding: i32) -> TextDisplay

where W: WidgetExt,

Initialize right of another widget

fn left_of<W>(self, wid: &W, padding: i32) -> TextDisplay

where W: WidgetExt,

Initialize left of another widget

fn center_of<W>(self, w: &W) -> TextDisplay

where W: WidgetExt,

Initialize center of another widget

fn center_of_parent(self) -> TextDisplay

Initialize center of parent

fn size_of<W>(self, w: &W) -> TextDisplay

where W: WidgetExt,

Initialize to the size of another widget

fn size_of_parent(self) -> TextDisplay

Initialize to the size of the parent

fn set_pos(&mut self, x: i32, y: i32)

Set to position x, y

fn set_size(&mut self, width: i32, height: i32)

Set to dimensions width and height

fn set_label(&mut self, title: &str)

Sets the widget’s label. labels support special symbols preceded by an @ sign. and for the associated formatting.

fn redraw(&mut self)

Redraws a widget, necessary for resizing and changing positions

fn show(&mut self)

Shows the widget

fn hide(&mut self)

Hides the widget

fn x(&self) -> i32

Returns the x coordinate of the widget

fn y(&self) -> i32

Returns the y coordinate of the widget

fn width(&self) -> i32

Returns the width of the widget

fn height(&self) -> i32

Returns the height of the widget

fn w(&self) -> i32

Returns the width of the widget

fn h(&self) -> i32

Returns the height of the widget

fn label(&self) -> String

Returns the label of the widget

fn measure_label(&self) -> (i32, i32)

Measures the label’s width and height

fn as_widget_ptr(&self) -> *mut Fl_Widget

transforms a widget to a base Fl_Widget, for internal use

fn activate(&mut self)

Activates the widget

fn deactivate(&mut self)

Deactivates the widget

fn redraw_label(&mut self)

Redraws the label of the widget

fn resize(&mut self, x: i32, y: i32, width: i32, height: i32)

Resizes and/or moves the widget, takes x, y, width and height

fn widget_resize(&mut self, x: i32, y: i32, width: i32, height: i32)

Does a simple resize ignoring class-specific resize functionality

fn tooltip(&self) -> Option<String>

Returns the tooltip text

fn set_tooltip(&mut self, txt: &str)

Sets the tooltip text

fn color(&self) -> Color

Returns the widget color

fn set_color(&mut self, color: Color)

Sets the widget’s color

fn label_color(&self) -> Color

Returns the widget label’s color

fn set_label_color(&mut self, color: Color)

Sets the widget label’s color

fn label_font(&self) -> Font

Returns the widget label’s font

fn set_label_font(&mut self, font: Font)

Sets the widget label’s font

fn label_size(&self) -> i32

Returns the widget label’s size

fn set_label_size(&mut self, sz: i32)

Sets the widget label’s size

fn label_type(&self) -> LabelType

Returns the widget label’s type

fn set_label_type(&mut self, typ: LabelType)

Sets the widget label’s type

fn frame(&self) -> FrameType

Returns the widget’s frame type

fn set_frame(&mut self, typ: FrameType)

Sets the widget’s frame type

fn changed(&self) -> bool

Returns whether the widget was changed

fn set_changed(&mut self)

Mark the widget as changed

fn clear_changed(&mut self)

Clears the changed status of the widget

fn align(&self) -> Align

Returns the alignment of the widget

fn set_align(&mut self, align: Align)

Sets the alignment of the widget

fn set_trigger(&mut self, trigger: CallbackTrigger)

Sets the default callback trigger for a widget, equivalent to when()

fn trigger(&self) -> CallbackTrigger

Return the callback trigger, equivalent to when()

fn parent(&self) -> Option<Group>

Returns the parent of the widget

fn selection_color(&self) -> Color

Gets the selection color of the widget

fn set_selection_color(&mut self, color: Color)

Sets the selection color of the widget

fn do_callback(&mut self)

Runs the already registered callback

fn window(&self) -> Option<Box<dyn WindowExt>>

Returns the direct window holding the widget

fn top_window(&self) -> Option<Box<dyn WindowExt>>

Returns the topmost window holding the widget

fn takes_events(&self) -> bool

Checks whether a widget is capable of taking events

fn take_focus(&mut self) -> Result<(), FltkError>

Make the widget take focus

fn set_visible_focus(&mut self)

Set the widget to have visible focus

fn clear_visible_focus(&mut self)

Clear visible focus

fn visible_focus(&mut self, v: bool)

Set the visible focus using a flag

fn has_visible_focus(&self) -> bool

Return whether the widget has visible focus

fn has_focus(&self) -> bool

Return whether the widget has focus

fn was_deleted(&self) -> bool

Check if a widget was deleted

fn damage(&self) -> bool

Return whether the widget was damaged

fn set_damage(&mut self, flag: bool)

Signal the widget as damaged and it should be redrawn in the next event loop cycle

fn damage_type(&self) -> Damage

Return the damage mask

fn set_damage_type(&mut self, mask: Damage)

Signal the type of damage a widget received

fn set_damage_area(&mut self, mask: Damage, x: i32, y: i32, w: i32, h: i32)

Signal damage for an area inside the widget

fn clear_damage(&mut self)

Clear the damaged flag

fn as_window(&self) -> Option<Box<dyn WindowExt>>

Return the widget as a window if it’s a window

fn as_group(&self) -> Option<Group>

Return the widget as a group widget if it’s a group widget

fn inside<W>(&self, wid: &W) -> bool

where W: WidgetExt,

Checks whether the self widget is inside another widget

fn get_type<T>(&self) -> T

where T: WidgetType,

Returns the widget type when applicable

fn set_type<T>(&mut self, typ: T)

where T: WidgetType,

Sets the widget type

fn set_image<I>(&mut self, image: Option<I>)

where I: ImageExt,

Sets the image of the widget

fn set_image_scaled<I>(&mut self, image: Option<I>)

where I: ImageExt,

Sets the image of the widget scaled to the widget’s size

fn image(&self) -> Option<Box<dyn ImageExt>>

Gets the image associated with the widget

unsafe fn image_mut(&self) -> Option<&mut Image>

Get a reference type of the widget’s image

fn set_deimage<I>(&mut self, image: Option<I>)

where I: ImageExt,

Sets the deactivated image of the widget

fn set_deimage_scaled<I>(&mut self, image: Option<I>)

where I: ImageExt,

Sets the deactivated image of the widget scaled to the widget’s size

fn deimage(&self) -> Option<Box<dyn ImageExt>>

Gets the deactivated image associated with the widget

unsafe fn deimage_mut(&self) -> Option<&mut Image>

Get a reference type of the widget’s deactivated image

fn set_callback<F>(&mut self, cb: F)

where F: FnMut(&mut TextDisplay) + 'static,

Sets the callback when the widget is triggered (clicks for example) takes the widget as a closure argument

fn emit<T>(&mut self, sender: Sender<T>, msg: T)

where T: 'static + Clone + Send + Sync,

Emits a message on callback using a sender

unsafe fn into_widget<W>(&self) -> W

where W: WidgetBase,

Upcast a WidgetExt to some widget type

fn visible(&self) -> bool

Returns whether a widget is visible

fn visible_r(&self) -> bool

Returns whether a widget or any of its parents are visible (recursively)

fn is_same<W>(&self, other: &W) -> bool

where W: WidgetExt,

Return whether two widgets object point to the same widget

fn active(&self) -> bool

Returns whether a widget is active

fn active_r(&self) -> bool

Returns whether a widget or any of its parents are active (recursively)

fn handle_event(&mut self, event: Event) -> bool

Handle a specific event

fn is_derived(&self) -> bool

Check whether a widget is derived

fn as_base_widget(&self) -> Widget

where Self: Sized,

Upcast a WidgetExt to a Widget

impl Eq for TextDisplay

impl Send for TextDisplay

impl Sync for TextDisplay