Upgrade to v2.6
Fyne API v2.6
package fyne
Animation
Animation
AnimationCurve
AnimationCurve
App
App
AppMetadata
AppMetadata
BuildType
BuildType
Canvas
Canvas
CanvasObject
CanvasObject
Clipboard
Clipboard
CloudProvider
CloudProvider
CloudProviderPreferences
CloudProviderPreferences
CloudProviderStorage
CloudProviderStorage
Container
Container
Delta
Delta
Device
Device
DeviceOrientation
DeviceOrientation
Disableable
Disableable
DoubleTappable
DoubleTappable
DragEvent
DragEvent
Draggable
Draggable
Driver
Driver
Focusable
Focusable
HardwareKey
HardwareKey
KeyboardShortcut
KeyboardShortcut
KeyEvent
KeyEvent
KeyModifier
KeyModifier
KeyName
KeyName
Layout
Layout
LegacyTheme
LegacyTheme
Lifecycle
Lifecycle
ListableURI
ListableURI
Locale
Locale
MainMenu
MainMenu
Menu
Menu
MenuItem
MenuItem
Notification
Notification
OverlayStack
OverlayStack
PointEvent
PointEvent
Position
Position
Preferences
Preferences
Resource
Resource
Scrollable
Scrollable
ScrollDirection
ScrollDirection
ScrollEvent
ScrollEvent
SecondaryTappable
SecondaryTappable
Settings
Settings
Shortcut
Shortcut
Shortcutable
Shortcutable
ShortcutCopy
ShortcutCopy
ShortcutCut
ShortcutCut
ShortcutHandler
ShortcutHandler
ShortcutPaste
ShortcutPaste
ShortcutRedo
ShortcutRedo
ShortcutSelectAll
ShortcutSelectAll
ShortcutUndo
ShortcutUndo
Size
Size
StaticResource
StaticResource
Storage
Storage
StringValidator
StringValidator
Tabbable
Tabbable
Tappable
Tappable
TextAlign
TextAlign
TextStyle
TextStyle
TextTruncation
TextTruncation
TextWrap
TextWrap
Theme
Theme
ThemeColorName
ThemeColorName
ThemedResource
ThemedResource
ThemeIconName
ThemeIconName
ThemeSizeName
ThemeSizeName
ThemeVariant
ThemeVariant
URI
URI
URIReadCloser
URIReadCloser
URIWithIcon
URIWithIcon
URIWriteCloser
URIWriteCloser
Validatable
Validatable
Vector2
Vector2
Widget
Widget
WidgetRenderer
WidgetRenderer
Window
Window
app
canvas
container
data/binding
data/validation
dialog
driver
driver/desktop
driver/embedded
driver/mobile
driver/software
lang
layout
storage
storage/repository
test
theme
widget
Fyne API "fyne.Canvas"
fyne.Canvas
import "fyne.io/fyne/v2"
Usage
type Canvas
type Canvas interface {
Content() CanvasObject
SetContent(CanvasObject)
Refresh(CanvasObject)
// Focus makes the provided item focused.
// The item has to be added to the contents of the canvas before calling this.
Focus(Focusable)
// FocusNext focuses the next focusable item.
// If no item is currently focused, the first focusable item is focused.
// If the last focusable item is currently focused, the first focusable item is focused.
//
// Since: 2.0
FocusNext()
// FocusPrevious focuses the previous focusable item.
// If no item is currently focused, the last focusable item is focused.
// If the first focusable item is currently focused, the last focusable item is focused.
//
// Since: 2.0
FocusPrevious()
Unfocus()
Focused() Focusable
// Size returns the current size of this canvas
Size() Size
// Scale returns the current scale (multiplication factor) this canvas uses to render
// The pixel size of a [CanvasObject] can be found by multiplying by this value.
Scale() float32
// Overlays returns the overlay stack.
Overlays() OverlayStack
OnTypedRune() func(rune)
SetOnTypedRune(func(rune))
OnTypedKey() func(*KeyEvent)
SetOnTypedKey(func(*KeyEvent))
AddShortcut(shortcut Shortcut, handler func(shortcut Shortcut))
RemoveShortcut(shortcut Shortcut)
Capture() image.Image
// PixelCoordinateForPosition returns the x and y pixel coordinate for a given position on this canvas.
// This can be used to find absolute pixel positions or pixel offsets relative to an object top left.
PixelCoordinateForPosition(Position) (int, int)
// InteractiveArea returns the position and size of the central interactive area.
// Operating system elements may overlap the portions outside this area and widgets should avoid being outside.
//
// Since: 1.4
InteractiveArea() (Position, Size)
}
Canvas defines a graphical canvas to which a [CanvasObject] or Container can be added. Each canvas has a scale which is automatically applied during the render process.