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