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"Note This message [PBM_SETMARQUEE] requires ComCtl32.dll version 6.00 or later." blah, no more indeterminate progress bars (Windows 2000 has 5.something)

This commit is contained in:
Pietro Gagliardi 2014-02-25 00:31:48 -05:00
parent bfc9f7e339
commit d721e8f61b
1 changed files with 4 additions and 3 deletions
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7
progressbar.go
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@ -7,8 +7,6 @@ import (
// A ProgressBar is a horizontal rectangle that fills up from left to right to indicate the progress of a long-running task. // A ProgressBar is a horizontal rectangle that fills up from left to right to indicate the progress of a long-running task.
// This progress is typically a percentage, so within the range [0,100]. // This progress is typically a percentage, so within the range [0,100].
// Alternatively, a progress bar can be "indeterminate": it indicates progress is being made, but is unclear as to how much.
// The presentation of indeterminate progress bars is system-specific (for instance, on Windows and many GTK+ skins, this is represented by a small chunk of progress going back and forth across the width of the bar).
type ProgressBar struct { type ProgressBar struct {
lock sync.Mutex lock sync.Mutex
created bool created bool
@ -23,11 +21,14 @@ func NewProgressBar() *ProgressBar {
} }
} }
// SetProgress sets the currently indicated progress amount on the ProgressBar. If this amount is outside the range [0,100] (ideally -1), the progress bar is indeterminate. // SetProgress sets the currently indicated progress amount on the ProgressBar. If this amount is outside the range [0,100] (ideally -1), the function will panic (it should allow indeterminate progress bars, alas those are not supported on Windows 2000).
func (p *ProgressBar) SetProgress(percent int) { func (p *ProgressBar) SetProgress(percent int) {
p.lock.Lock() p.lock.Lock()
defer p.lock.Unlock() defer p.lock.Unlock()
if percent < 0 || percent > 100 {
panic("invalid percent") // TODO
}
if p.created { if p.created {
p.sysData.setProgress(percent) p.sysData.setProgress(percent)
return return