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separator.go
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/
separator.go
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// Copyright 2017 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 (
"github.com/lxn/win"
)
type Separator struct {
WidgetBase
vertical bool
}
func NewHSeparator(parent Container) (*Separator, error) {
return newSeparator(parent, false)
}
func NewVSeparator(parent Container) (*Separator, error) {
return newSeparator(parent, true)
}
func newSeparator(parent Container, vertical bool) (*Separator, error) {
s := &Separator{vertical: vertical}
if err := InitWidget(
s,
parent,
"STATIC",
win.WS_VISIBLE|win.SS_ETCHEDHORZ,
0); err != nil {
return nil, err
}
return s, nil
}
func (s *Separator) CreateLayoutItem(ctx *LayoutContext) LayoutItem {
var layoutFlags LayoutFlags
if s.vertical {
layoutFlags = GrowableHorz | GreedyHorz
} else {
layoutFlags = GrowableVert | GreedyVert
}
return &separatorLayoutItem{
layoutFlags: layoutFlags,
}
}
type separatorLayoutItem struct {
LayoutItemBase
layoutFlags LayoutFlags
}
func (li *separatorLayoutItem) LayoutFlags() LayoutFlags {
return li.layoutFlags
}
func (li *separatorLayoutItem) IdealSize() Size {
return li.MinSize()
}
func (li *separatorLayoutItem) MinSize() Size {
return SizeFrom96DPI(Size{2, 2}, li.ctx.dpi)
}