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/* SPDX-License-Identifier: MIT
*
* Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
*/
package ui
import (
"github.com/lxn/walk"
"golang.zx2c4.com/wireguard/windows/service"
)
type widthAndState struct {
width int
state service.TunnelState
}
type widthAndDllIdx struct {
width int
idx int32
dll string
}
var cachedOverlayIconsForWidthAndState = make(map[widthAndState]walk.Image)
func iconWithOverlayForState(state service.TunnelState, size int) (icon walk.Image, err error) {
icon = cachedOverlayIconsForWidthAndState[widthAndState{size, state}]
if icon != nil {
return
}
wireguardIcon, err := loadLogoIcon(size)
if err != nil {
return
}
if state == service.TunnelStopped {
return wireguardIcon, err //TODO: if we find something prettier than the gray dot, then remove this clause
}
iconSize := wireguardIcon.Size()
w := int(float64(iconSize.Width) * 0.65)
h := int(float64(iconSize.Height) * 0.65)
overlayBounds := walk.Rectangle{iconSize.Width - w, iconSize.Height - h, w, h}
overlayIcon, err := iconForState(state, overlayBounds.Width)
if err != nil {
return
}
icon = walk.NewPaintFuncImage(walk.Size{size, size}, func(canvas *walk.Canvas, bounds walk.Rectangle) error {
if err := canvas.DrawImageStretched(wireguardIcon, bounds); err != nil {
return err
}
if err := canvas.DrawImageStretched(overlayIcon, overlayBounds); err != nil {
return err
}
return nil
})
cachedOverlayIconsForWidthAndState[widthAndState{size, state}] = icon
return
}
var cachedIconsForWidthAndState = make(map[widthAndState]*walk.Icon)
func iconForState(state service.TunnelState, size int) (icon *walk.Icon, err error) {
icon = cachedIconsForWidthAndState[widthAndState{size, state}]
if icon != nil {
return
}
switch state {
case service.TunnelStarted:
icon, err = loadSystemIcon("imageres", 101, size)
case service.TunnelStopped:
icon, err = walk.NewIconFromResourceWithSize("dot-gray.ico", walk.Size{size, size}) //TODO: replace with real icon
default:
icon, err = loadSystemIcon("shell32", 238, size) //TODO: this doesn't look that great overlayed on the app icon
}
if err == nil {
cachedIconsForWidthAndState[widthAndState{size, state}] = icon
}
return
}
func textForState(state service.TunnelState, withEllipsis bool) (text string) {
switch state {
case service.TunnelStarted:
text = "Active"
case service.TunnelStarting:
text = "Activating"
case service.TunnelStopped:
text = "Inactive"
case service.TunnelStopping:
text = "Deactivating"
case service.TunnelUnknown:
text = "Unknown state"
}
if withEllipsis {
switch state {
case service.TunnelStarting, service.TunnelStopping:
text += "..."
}
}
return
}
var cachedSystemIconsForWidthAndDllIdx = make(map[widthAndDllIdx]*walk.Icon)
func loadSystemIcon(dll string, index int32, size int) (icon *walk.Icon, err error) {
icon = cachedSystemIconsForWidthAndDllIdx[widthAndDllIdx{size, index, dll}]
if icon != nil {
return
}
icon, err = walk.NewIconFromSysDLLWithSize(dll, int(index), size)
if err == nil {
cachedSystemIconsForWidthAndDllIdx[widthAndDllIdx{size, index, dll}] = icon
}
return
}
var cachedLogoIconsForWidth = make(map[int]*walk.Icon)
func loadLogoIcon(size int) (icon *walk.Icon, err error) {
icon = cachedLogoIconsForWidth[size]
if icon != nil {
return
}
icon, err = walk.NewIconFromResourceWithSize("$wireguard.ico", walk.Size{size, size})
if err == nil {
cachedLogoIconsForWidth[size] = icon
}
return
}
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