package elements import "git.tebibyte.media/sashakoshka/tomo" import "git.tebibyte.media/sashakoshka/tomo/canvas" import "git.tebibyte.media/sashakoshka/tomo/default/theme" import "git.tebibyte.media/sashakoshka/tomo/default/config" // Spacer can be used to put space between two elements.. type Spacer struct { entity tomo.Entity line bool config config.Wrapped theme theme.Wrapped } // NewSpacer creates a new spacer. If line is set to true, the spacer will be // filled with a line color, and if compressed to its minimum width or height, // will appear as a line. func NewSpacer (line bool) (element *Spacer) { element = &Spacer { line: line } element.entity = tomo.NewEntity(element) element.theme.Case = tomo.C("tomo", "spacer") element.updateMinimumSize() return } // Entity returns this element's entity. func (element *Spacer) Entity () tomo.Entity { return element.entity } // Draw causes the element to draw to the specified destination canvas. func (element *Spacer) Draw (destination canvas.Canvas) { bounds := element.entity.Bounds() if element.line { pattern := element.theme.Pattern ( tomo.PatternLine, tomo.State { }) pattern.Draw(destination, bounds) } else { pattern := element.theme.Pattern ( tomo.PatternBackground, tomo.State { }) pattern.Draw(destination, bounds) } } /// SetLine sets whether or not the spacer will appear as a colored line. func (element *Spacer) SetLine (line bool) { if element.line == line { return } element.line = line element.updateMinimumSize() element.entity.Invalidate() } // SetTheme sets the element's theme. func (element *Spacer) SetTheme (new tomo.Theme) { if new == element.theme.Theme { return } element.theme.Theme = new element.entity.Invalidate() } // SetConfig sets the element's configuration. func (element *Spacer) SetConfig (new tomo.Config) { if new == element.config.Config { return } element.config.Config = new element.entity.Invalidate() } func (element *Spacer) updateMinimumSize () { if element.line { padding := element.theme.Padding(tomo.PatternLine) element.entity.SetMinimumSize ( padding.Horizontal(), padding.Vertical()) } else { element.entity.SetMinimumSize(1, 1) } }