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// Copyright 2011 The Walk Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build windows
package walk
import (
"strconv"
"github.com/lxn/win"
)
const tabPageWindowClass = "WireGuard UI - TabPage"
var tabPageBackgroundBrush Brush
func init() {
MustRegisterWindowClass(tabPageWindowClass)
tabPageBackgroundBrush, _ = NewSystemColorBrush(win.COLOR_WINDOW)
}
type TabPage struct {
ContainerBase
image *Bitmap
title string
tabWidget *TabWidget
titleChangedPublisher EventPublisher
imageChangedPublisher EventPublisher
}
func NewTabPage() (*TabPage, error) {
tp := new(TabPage)
if err := InitWindow(
tp,
nil,
tabPageWindowClass,
win.WS_POPUP,
win.WS_EX_CONTROLPARENT); err != nil {
return nil, err
}
tp.children = newWidgetList(tp)
tp.MustRegisterProperty("Title", NewProperty(
func() interface{} {
return tp.Title()
},
func(v interface{}) error {
return tp.SetTitle(assertStringOr(v, ""))
},
tp.titleChangedPublisher.Event()))
tp.MustRegisterProperty("Image", NewProperty(
func() interface{} {
return tp.Image()
},
func(v interface{}) error {
var img *Bitmap
switch val := v.(type) {
case *Bitmap:
img = val
case int:
var err error
if img, err = Resources.Bitmap(strconv.Itoa(val)); err != nil {
return err
}
case string:
var err error
if img, err = Resources.Bitmap(val); err != nil {
return err
}
default:
return ErrInvalidType
}
return tp.SetImage(img)
},
tp.imageChangedPublisher.Event()))
return tp, nil
}
func (tp *TabPage) Enabled() bool {
if tp.tabWidget != nil {
return tp.tabWidget.Enabled() && tp.enabled
}
return tp.enabled
}
func (tp *TabPage) Background() Brush {
if tp.background != nil {
return tp.background
} else if tp.tabWidget != nil && tp.tabWidget.background == nullBrushSingleton {
return nullBrushSingleton
}
if win.IsAppThemed() {
return tabPageBackgroundBrush
}
return nil
}
func (tp *TabPage) Font() *Font {
if tp.font != nil {
return tp.font
} else if tp.tabWidget != nil {
return tp.tabWidget.Font()
}
return defaultFont
}
func (tp *TabPage) Image() *Bitmap {
return tp.image
}
func (tp *TabPage) SetImage(value *Bitmap) error {
tp.image = value
if tp.tabWidget == nil {
return nil
}
return tp.tabWidget.onPageChanged(tp)
}
func (tp *TabPage) Title() string {
return tp.title
}
func (tp *TabPage) SetTitle(value string) error {
tp.title = value
tp.titleChangedPublisher.Publish()
if tp.tabWidget == nil {
return nil
}
return tp.tabWidget.onPageChanged(tp)
}
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