118 lines
2.4 KiB
Go
118 lines
2.4 KiB
Go
package components
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import (
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"fmt"
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"io"
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"gitea.unprism.ru/yotia/display-test/drawer"
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)
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type progressBar struct {
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drawer drawer.Drawer // Drawer with dysplay
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mask uint32 // Flush mask
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progress float64
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rect rect // Rect
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}
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type ProgressBar interface {
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RectGetter
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SetProgress(coef float64) // Value from 0 to 1
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Draw() // For any cases
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Clear() // Clear space of bar
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Flush() // For those times like after SetPos
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io.Closer
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}
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// Creation function
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// Now the only way to chage shape is to recreate component
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func NewProgressBar(drawer drawer.Drawer, x, y, w, h int) (ProgressBar, error) {
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if err := drawer.GetDisplay().IsReady(); err != nil {
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return nil, fmt.Errorf("display is ready: %w", err)
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}
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// Check for correct sizes
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if w < 4 {
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return nil, fmt.Errorf("invalid width: below 4")
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}
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if h < 4 {
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return nil, fmt.Errorf("invalid height: below 4")
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}
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pb := progressBar{
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drawer: drawer,
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rect: rect{x, y, w, h},
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}
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pb.updateMask()
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pb.Draw()
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pb.Flush()
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return &pb, nil
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}
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func (pb *progressBar) Flush() {
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pb.drawer.GetDisplay().FlushByMask(pb.mask)
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}
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func (pb *progressBar) updateMask() {
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pb.mask = 0
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// Implementation dependent !!!
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// Now for mt12232
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y0 := min(3, max(0, int(pb.rect.y/8)))
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y1 := min(3, max(0, int((pb.rect.y+pb.rect.h-1)/8)))
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x0 := min(1, max(0, int(pb.rect.x/61)))
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x1 := min(1, max(0, int((pb.rect.x+pb.rect.w-1)/61)))
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//log.Println(x0, y0, x1, y1)
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for y := y0; y <= y1; y++ {
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for x := x0; x <= x1; x++ {
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pb.mask |= (1 << (x*4 + y))
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}
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}
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}
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func (pb *progressBar) Close() error {
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return nil
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}
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func (pb *progressBar) Clear() {
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pb.drawer.FillBar(pb.rect.x, pb.rect.y, pb.rect.x+pb.rect.w, pb.rect.y+pb.rect.h, 0x00)
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}
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// Draw whole bar
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func (pb *progressBar) Draw() {
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// Shape:
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// Bounds - 1px
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// Padding - 1px
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// Progress - the rest space
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pb.Clear()
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pb.drawer.PutBar(pb.rect.x, pb.rect.y, pb.rect.x+pb.rect.w, pb.rect.y+pb.rect.h, 0xFF)
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pb.drawBar()
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}
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// Draw only bar(without frames)
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func (pb *progressBar) drawBar() {
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w := int(float64(pb.rect.w-4) * pb.progress)
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pb.drawer.FillBar(pb.rect.x+2, pb.rect.y+2, pb.rect.x+2+w, pb.rect.y+pb.rect.h-2, 0xFF)
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}
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func (pb *progressBar) SetProgress(coef float64) {
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pb.progress = max(0, min(1, coef))
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pb.drawBar()
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pb.Flush()
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}
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func (pb *progressBar) GetPos() (int, int) {
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return pb.rect.x, pb.rect.y
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}
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func (pb *progressBar) GetSize() (int, int) {
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return pb.rect.w, pb.rect.h
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}
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