test gui

gui/fyne_demo/data/gen.go

@@ -0,0 +1,57 @@
+// +build ignore
+
+package main
+
+import (
+	"fmt"
+	"os"
+	"path"
+	"runtime"
+
+	"fyne.io/fyne"
+)
+
+func bundleFile(name string, filepath string, f *os.File) {
+	res, err := fyne.LoadResourceFromPath(filepath)
+	if err != nil {
+		fyne.LogError("Unable to load file "+filepath, err)
+		return
+	}
+
+	_, err = f.WriteString(fmt.Sprintf("var %s = %#v\n", name, res))
+	if err != nil {
+		fyne.LogError("Unable to write to bundled file", err)
+	}
+}
+
+func openFile(filename string) *os.File {
+	os.Remove(filename)
+	_, dirname, _, _ := runtime.Caller(0)
+	f, err := os.Create(path.Join(path.Dir(dirname), filename))
+	if err != nil {
+		fyne.LogError("Unable to open file "+filename, err)
+		return nil
+	}
+
+	_, err = f.WriteString("// **** THIS FILE IS AUTO-GENERATED, PLEASE DO NOT EDIT IT **** //\n\npackage data\n\nimport \"fyne.io/fyne\"\n\n")
+	if err != nil {
+		fyne.LogError("Unable to write file "+filename, err)
+		return nil
+	}
+
+	return f
+}
+
+func iconDir() string {
+	_, dirname, _, _ := runtime.Caller(0)
+	return path.Join(path.Dir(dirname), "icons")
+}
+
+func main() {
+	f := openFile("bundled-scene.go")
+
+	bundleFile("fynescenedark", "fyne_scene_dark.png", f)
+	bundleFile("fynescenelight", "fyne_scene_light.png", f)
+
+	f.Close()
+}

gui/fyne_demo/data/icons.go

@@ -0,0 +1,40 @@
+package data
+
+import (
+	"fyne.io/fyne"
+)
+
+// ThemedResource is a resource wrapper that will return an appropriate resource
+// for the currently selected theme.
+type ThemedResource struct {
+	dark, light fyne.Resource
+}
+
+func isLight() bool {
+	r, g, b, _ := fyne.CurrentApp().Settings().Theme().TextColor().RGBA()
+	return r < 0xaaaa && g < 0xaaaa && b < 0xaaaa
+}
+
+// Name returns the underlying resource name (used for caching)
+func (res *ThemedResource) Name() string {
+	if isLight() {
+		return res.light.Name()
+	}
+	return res.dark.Name()
+}
+
+// Content returns the underlying content of the correct resource for the current theme
+func (res *ThemedResource) Content() []byte {
+	if isLight() {
+		return res.light.Content()
+	}
+	return res.dark.Content()
+}
+
+// NewThemedResource creates a resource that adapts to the current theme setting.
+func NewThemedResource(dark, light fyne.Resource) *ThemedResource {
+	return &ThemedResource{dark, light}
+}
+
+// FyneScene contains the full fyne logo with background design
+var FyneScene = NewThemedResource(fynescenedark, fynescenelight)