60 lines
994 B
Go
60 lines
994 B
Go
package termbox
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// private API, common OS agnostic part
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type cellbuf struct {
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width int
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height int
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cells []Cell
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}
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func (this *cellbuf) init(width, height int) {
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this.width = width
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this.height = height
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this.cells = make([]Cell, width*height)
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}
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func (this *cellbuf) resize(width, height int) {
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if this.width == width && this.height == height {
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return
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}
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oldw := this.width
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oldh := this.height
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oldcells := this.cells
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this.init(width, height)
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this.clear()
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minw, minh := oldw, oldh
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if width < minw {
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minw = width
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}
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if height < minh {
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minh = height
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}
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for i := 0; i < minh; i++ {
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srco, dsto := i*oldw, i*width
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src := oldcells[srco : srco+minw]
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dst := this.cells[dsto : dsto+minw]
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copy(dst, src)
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}
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}
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func (this *cellbuf) clear() {
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for i := range this.cells {
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c := &this.cells[i]
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c.Ch = ' '
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c.Fg = foreground
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c.Bg = background
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}
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}
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const cursor_hidden = -1
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func is_cursor_hidden(x, y int) bool {
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return x == cursor_hidden || y == cursor_hidden
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}
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