Getting Started

Getting Started Creating your first Fyne app Run Fyne Demo Application and RunLoop Updating Content in your GUI Window Handling Testing Graphical Apps Packaging for Desktop Mobile Packaging Run in a Browser App Metadata Distributing to App Stores Compiling for different platforms

Exploring Fyne

Canvas and CanvasObject Container and Layouts Widget List Layout List Dialog List Theme Icons Adding Shortcuts to an App Using the Preferences API Adding app translations System Tray Menu Data Binding Compile Options

Drawing and Animation

Rectangle Text Line Circle Image Raster Gradient Animation

Containers and Layout

Box Grid Grid Wrap Border Form Center Max AppTabs

Widgets

Label Button Entry Choices Form ProgressBar Toolbar

Collections

List Table Tree

Data Binding

Data Binding Binding Simple Widgets Two-Way Binding Data Conversion List Data

Extending Fyne

Building a Custom Layout Writing a Custom Widget Bundling resources Creating a Custom Theme Extending Widgets Numerical Entry

Architecture

Geometry Scaling Widgets Organisation and Packages

Frequently Asked Questions

Layout and Widget Size Theme and Customisation Troubleshooting

API Documentation

Upgrade to v2.5 Fyne API v2.5 app canvas

package canvas Circle Image ImageFill ImageScale Line LinearGradient RadialGradient Raster Rectangle Text

container data/binding data/validation dialog driver driver/desktop driver/mobile driver/software lang layout storage storage/repository test theme widget

List My App

Fyne API "canvas.ImageFill"

canvas.ImageFill

import "fyne.io/fyne/v2/canvas"

Usage

type ImageFill

type ImageFill int

ImageFill defines the different type of ways an image can stretch to fill its space.

const (
	// ImageFillStretch will scale the image to match the Size() values.
	// This is the default and does not maintain aspect ratio.
	ImageFillStretch ImageFill = iota
	// ImageFillContain makes the image fit within the object Size(),
	// centrally and maintaining aspect ratio.
	// There may be transparent sections top and bottom or left and right.
	ImageFillContain // (Fit)
	// ImageFillOriginal ensures that the container grows to the pixel dimensions
	// required to fit the original image. The aspect of the image will be maintained so,
	// as with ImageFillContain there may be transparent areas around the image.
	// Note that the minSize may be smaller than the image dimensions if scale > 1.
	ImageFillOriginal
)

Improve this page