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progressbar.go
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progressbar.go
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// Copyright 2010 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 ProgressBar struct {
WidgetBase
}
func NewProgressBar(parent Container) (*ProgressBar, error) {
pb := new(ProgressBar)
if err := InitWidget(
pb,
parent,
"msctls_progress32",
win.WS_VISIBLE,
0); err != nil {
return nil, err
}
return pb, nil
}
func (pb *ProgressBar) MinValue() int {
return int(pb.SendMessage(win.PBM_GETRANGE, 1, 0))
}
func (pb *ProgressBar) MaxValue() int {
return int(pb.SendMessage(win.PBM_GETRANGE, 0, 0))
}
func (pb *ProgressBar) SetRange(min, max int) {
pb.SendMessage(win.PBM_SETRANGE32, uintptr(min), uintptr(max))
}
func (pb *ProgressBar) Value() int {
return int(pb.SendMessage(win.PBM_GETPOS, 0, 0))
}
func (pb *ProgressBar) SetValue(value int) {
pb.SendMessage(win.PBM_SETPOS, uintptr(value), 0)
}
func (pb *ProgressBar) MarqueeMode() bool {
return pb.hasStyleBits(win.PBS_MARQUEE)
}
func (pb *ProgressBar) SetMarqueeMode(marqueeMode bool) error {
if err := pb.ensureStyleBits(win.PBS_MARQUEE, marqueeMode); err != nil {
return err
}
pb.SendMessage(win.PBM_SETMARQUEE, uintptr(win.BoolToBOOL(marqueeMode)), 0)
return nil
}
func (pb *ProgressBar) CreateLayoutItem(ctx *LayoutContext) LayoutItem {
return &progressBarLayoutItem{
idealSize: pb.dialogBaseUnitsToPixels(Size{50, 14}),
minSize: pb.dialogBaseUnitsToPixels(Size{10, 14}),
}
}
type progressBarLayoutItem struct {
LayoutItemBase
idealSize Size // in native pixels
minSize Size // in native pixels
}
func (*progressBarLayoutItem) LayoutFlags() LayoutFlags {
return ShrinkableHorz | GrowableHorz | GreedyHorz
}
func (li *progressBarLayoutItem) IdealSize() Size {
return li.idealSize
}
func (li *progressBarLayoutItem) MinSize() Size {
return li.minSize
}