Can't set an app/window icon to be an svg. #1196

dylandrush · 2020-07-18T00:25:21Z

Describe the bug:

Tried to set the icon for the main app to be an svg image. Program will run but an error is thrown.
I can display the svg image in the main window using the same resource so I should be able to use it as the main icon.

To Reproduce:

	iconResource := fyne.NewStaticResource("icon.svg", []byte(iconSvg)) // Or however else you want to load a resource
	myApp := app.New()
	myApp.SetIcon(iconResource)

Screenshots:

Along with the console log:

2020/07/17 19:59:06 Fyne error:  Failed to decode image for window icon
2020/07/17 19:59:06   Cause: image: unknown format
2020/07/17 19:59:06   At: /home/dylan/go/src/fyne.io/fyne/internal/driver/glfw/window.go:224
2020/07/17 19:59:06 Fyne error:  Failed to decode image for window icon
2020/07/17 19:59:06   Cause: image: unknown format
2020/07/17 19:59:06   At: /home/dylan/go/src/fyne.io/fyne/internal/driver/glfw/window.go:224

Example code:

package main

import (
	"fyne.io/fyne"
	"fyne.io/fyne/app"
	"fyne.io/fyne/canvas"
)

func main() {
	iconSvg := `<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<svg
   xmlns:dc="http://purl.org/dc/elements/1.1/"
   xmlns:cc="http://creativecommons.org/ns#"
   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
   xmlns:svg="http://www.w3.org/2000/svg"
   xmlns="http://www.w3.org/2000/svg"
   id="svg8"
   version="1.1"
   viewBox="0 0 162.66043 162.66041"
   height="162.66042mm"
   width="162.66042mm">
  <defs
     id="defs2" />
  <metadata
     id="metadata5">
    <rdf:RDF>
      <cc:Work
         rdf:about="">
        <dc:format>image/svg+xml</dc:format>
        <dc:type
           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
        <dc:title></dc:title>
      </cc:Work>
    </rdf:RDF>
  </metadata>
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     id="layer1">
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    </g>
  </g>
</svg>'`

	iconResource := fyne.NewStaticResource("icon.svg", []byte(iconSvg))

	myApp := app.New()
	myApp.SetIcon(iconResource)
	w := myApp.NewWindow("Icon")
	image := canvas.NewImageFromResource(iconResource)
	image.FillMode = canvas.ImageFillOriginal
	w.SetContent(image)
	w.SetIcon(iconResource)
	w.ShowAndRun()
}

-->

Device (please complete the following information):

OS: Windows 7 | Ubuntu 20.04 LTS / Gnome 3.36.2
Go version: 1.14.4 windows/amd64 | 1.13.8 linux/amd64
Fyne version: 1.3

The text was updated successfully, but these errors were encountered:

dylandrush · 2020-07-18T00:26:05Z

Really not sure if this actually is a bug, or if this should be a feature request.

andydotxyz · 2020-07-18T09:54:37Z

Maybe it’s both? :)
I agree that it should be fixed and in theory it’s not too hard either so let’s get it in the next release.

ChandanChainani · 2021-10-19T03:43:29Z

Hi @andydotxyz

Is anyone working on the issue if not can I take it up

After spending some time with code I found the issue is located at internal/driver/glfw/window.go#L253 but there is also a condition before the line which states that svg is not supported do we have to updated the condition or add support for svg. If we have to add support is there a function which can be reused for the purpose.

Secondly I am not sure if this is a issue or not runOnMainWhenCreated function is being called twice has shown in the output shared by @dylandrush.

andydotxyz · 2021-10-19T18:20:03Z

I don't think anyone is working on this thanks @ChandanChainani

there is also a condition before the line which states that svg is not supported

GLFW requires internally that this data is PNG, so we would need to rasterise the SVG into an image and export it as a PNG sending the []bytes instead of the SVG. There is an SVG renderer that could be re-used, it's in one of the internal packages.

Secondly I am not sure if this is a issue or not runOnMainWhenCreated function is being called twice has shown in the output shared by @dylandrush.

That is not an issue, it's like defer - called for many different reasons once a window is created

andydotxyz added bug Something isn't working enhancement New feature or request labels Jul 18, 2020

andydotxyz added the Hacktoberfest label Oct 2, 2020

andydotxyz added this to the 1.4 - List, Table, Input Validation and UI Refresh milestone Oct 2, 2020

andydotxyz modified the milestones: 1.4 - List, Table, Tree, Input Validation and UI Refresh, 1.4.x - bugfixes and work after 1.4 before 2.0 Oct 26, 2020

andydotxyz modified the milestones: 1.4.x - bugfixes and work after 1.4 before 2.0, 2.0 - Data binding, animations, flexible theming, 2.0.x - bugfixes since binding, storage, animation addition Jan 15, 2021

andydotxyz self-assigned this Apr 23, 2021

andydotxyz modified the milestones: 2.0.x - bugfixes since binding, storage, animation addition, Aberlour (2.1) Apr 30, 2021

andydotxyz modified the milestones: Aberlour (2.1), Fixes (v2.1.x) Sep 12, 2021

andydotxyz mentioned this issue Oct 21, 2021

fix #1196: Can't set an app/window icon to be an svg #2570

Closed

6 tasks

andydotxyz removed their assignment Nov 29, 2021

ChandanChainani added a commit to ChandanChainani/fyne that referenced this issue Nov 30, 2021

FIX fyne-io#1196: Can't set an app/window icon to be an svg

ce55607

ChandanChainani mentioned this issue Nov 30, 2021

Fix #1196: Add svg support for app/window icon #2671

Merged

6 tasks

Jacalz pushed a commit that referenced this issue Nov 30, 2021

Fix #1196: Add svg support for app/window icon (#2671)

8cd4a92

andydotxyz closed this as completed in c1e65aa Dec 6, 2021

holyorb2 mentioned this issue Jun 12, 2023

Can't set SVG icon in tray #3968

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Can't set an app/window icon to be an svg. #1196

Can't set an app/window icon to be an svg. #1196

dylandrush commented Jul 18, 2020

dylandrush commented Jul 18, 2020

andydotxyz commented Jul 18, 2020

ChandanChainani commented Oct 19, 2021 •

edited

andydotxyz commented Oct 19, 2021

Can't set an app/window icon to be an svg. #1196

Can't set an app/window icon to be an svg. #1196

Comments

dylandrush commented Jul 18, 2020

Describe the bug:

To Reproduce:

Screenshots:

Example code:

Device (please complete the following information):

dylandrush commented Jul 18, 2020

andydotxyz commented Jul 18, 2020

ChandanChainani commented Oct 19, 2021 • edited

andydotxyz commented Oct 19, 2021

ChandanChainani commented Oct 19, 2021 •

edited