Initial QSfera import
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Курнат Андрей
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package renderer
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import (
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"github.com/olekukonko/ll"
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"github.com/olekukonko/tablewriter/tw"
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)
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// Junction handles rendering of table junction points (corners, intersections) with color support.
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type Junction struct {
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sym tw.Symbols // Symbols used for rendering junctions and lines
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ctx tw.Formatting // Current table formatting context
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colIdx int // Index of the column being processed
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debugging bool // Enables debug logging
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borderTint Tint // Colors for border symbols
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separatorTint Tint // Colors for separator symbols
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logger *ll.Logger
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}
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type JunctionContext struct {
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Symbols tw.Symbols
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Ctx tw.Formatting
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ColIdx int
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Logger *ll.Logger
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BorderTint Tint
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SeparatorTint Tint
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}
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// NewJunction initializes a Junction with the given symbols, context, and tints.
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// If debug is nil, a no-op debug function is used.
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func NewJunction(ctx JunctionContext) *Junction {
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return &Junction{
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sym: ctx.Symbols,
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ctx: ctx.Ctx,
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colIdx: ctx.ColIdx,
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logger: ctx.Logger.Namespace("junction"),
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borderTint: ctx.BorderTint,
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separatorTint: ctx.SeparatorTint,
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}
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}
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// getMergeState retrieves the merge state for a specific column in a row, returning an empty state if not found.
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func (jr *Junction) getMergeState(row map[int]tw.CellContext, colIdx int) tw.MergeState {
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if row == nil || colIdx < 0 {
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return tw.MergeState{}
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}
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return row[colIdx].Merge
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}
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// GetSegment determines whether to render a colored horizontal line or an empty space based on merge states.
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func (jr *Junction) GetSegment() string {
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currentMerge := jr.getMergeState(jr.ctx.Row.Current, jr.colIdx)
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nextMerge := jr.getMergeState(jr.ctx.Row.Next, jr.colIdx)
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vPassThruStrict := (currentMerge.Vertical.Present && nextMerge.Vertical.Present && !currentMerge.Vertical.End && !nextMerge.Vertical.Start) ||
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(currentMerge.Hierarchical.Present && nextMerge.Hierarchical.Present && !currentMerge.Hierarchical.End && !nextMerge.Hierarchical.Start)
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if vPassThruStrict {
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jr.logger.Debugf("GetSegment col %d: VPassThruStrict=%v -> Empty segment", jr.colIdx, vPassThruStrict)
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return tw.Empty
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}
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symbol := jr.sym.Row()
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coloredSymbol := jr.borderTint.Apply(symbol)
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jr.logger.Debugf("GetSegment col %d: VPassThruStrict=%v -> Colored row symbol '%s'", jr.colIdx, vPassThruStrict, coloredSymbol)
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return coloredSymbol
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}
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// RenderLeft selects and colors the leftmost junction symbol for the current row line based on position and merges.
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func (jr *Junction) RenderLeft() string {
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mergeAbove := jr.getMergeState(jr.ctx.Row.Current, 0)
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mergeBelow := jr.getMergeState(jr.ctx.Row.Next, 0)
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jr.logger.Debugf("RenderLeft: Level=%v, Location=%v, Previous=%v", jr.ctx.Level, jr.ctx.Row.Location, jr.ctx.Row.Previous)
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isTopBorder := (jr.ctx.Level == tw.LevelHeader && jr.ctx.Row.Location == tw.LocationFirst) ||
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(jr.ctx.Level == tw.LevelBody && jr.ctx.Row.Location == tw.LocationFirst && jr.ctx.Row.Previous == nil)
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if isTopBorder {
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symbol := jr.sym.TopLeft()
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return jr.borderTint.Apply(symbol)
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}
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isBottom := jr.ctx.Level == tw.LevelBody && jr.ctx.Row.Location == tw.LocationEnd && !jr.ctx.HasFooter
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isFooter := jr.ctx.Level == tw.LevelFooter && jr.ctx.Row.Location == tw.LocationEnd
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if isBottom || isFooter {
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symbol := jr.sym.BottomLeft()
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return jr.borderTint.Apply(symbol)
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}
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isVPassThruStrict := (mergeAbove.Vertical.Present && mergeBelow.Vertical.Present && !mergeAbove.Vertical.End && !mergeBelow.Vertical.Start) ||
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(mergeAbove.Hierarchical.Present && mergeBelow.Hierarchical.Present && !mergeAbove.Hierarchical.End && !mergeBelow.Hierarchical.Start)
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if isVPassThruStrict {
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symbol := jr.sym.Column()
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return jr.separatorTint.Apply(symbol)
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}
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symbol := jr.sym.MidLeft()
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return jr.borderTint.Apply(symbol)
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}
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// RenderRight selects and colors the rightmost junction symbol for the row line based on position, merges, and last column index.
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func (jr *Junction) RenderRight(lastColIdx int) string {
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jr.logger.Debugf("RenderRight: lastColIdx=%d, Level=%v, Location=%v, Previous=%v", lastColIdx, jr.ctx.Level, jr.ctx.Row.Location, jr.ctx.Row.Previous)
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if lastColIdx < 0 {
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switch jr.ctx.Level {
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case tw.LevelHeader:
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symbol := jr.sym.TopRight()
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return jr.borderTint.Apply(symbol)
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case tw.LevelFooter:
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symbol := jr.sym.BottomRight()
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return jr.borderTint.Apply(symbol)
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default:
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if jr.ctx.Row.Location == tw.LocationFirst {
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symbol := jr.sym.TopRight()
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return jr.borderTint.Apply(symbol)
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}
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if jr.ctx.Row.Location == tw.LocationEnd {
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symbol := jr.sym.BottomRight()
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return jr.borderTint.Apply(symbol)
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}
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symbol := jr.sym.MidRight()
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return jr.borderTint.Apply(symbol)
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}
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}
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mergeAbove := jr.getMergeState(jr.ctx.Row.Current, lastColIdx)
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mergeBelow := jr.getMergeState(jr.ctx.Row.Next, lastColIdx)
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isTopBorder := (jr.ctx.Level == tw.LevelHeader && jr.ctx.Row.Location == tw.LocationFirst) ||
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(jr.ctx.Level == tw.LevelBody && jr.ctx.Row.Location == tw.LocationFirst && jr.ctx.Row.Previous == nil)
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if isTopBorder {
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symbol := jr.sym.TopRight()
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return jr.borderTint.Apply(symbol)
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}
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isBottom := jr.ctx.Level == tw.LevelBody && jr.ctx.Row.Location == tw.LocationEnd && !jr.ctx.HasFooter
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isFooter := jr.ctx.Level == tw.LevelFooter && jr.ctx.Row.Location == tw.LocationEnd
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if isBottom || isFooter {
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symbol := jr.sym.BottomRight()
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return jr.borderTint.Apply(symbol)
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}
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isVPassThruStrict := (mergeAbove.Vertical.Present && mergeBelow.Vertical.Present && !mergeAbove.Vertical.End && !mergeBelow.Vertical.Start) ||
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(mergeAbove.Hierarchical.Present && mergeBelow.Hierarchical.Present && !mergeAbove.Hierarchical.End && !mergeBelow.Hierarchical.Start)
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if isVPassThruStrict {
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symbol := jr.sym.Column()
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return jr.separatorTint.Apply(symbol)
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}
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symbol := jr.sym.MidRight()
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return jr.borderTint.Apply(symbol)
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}
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// RenderJunction selects and colors the junction symbol between two adjacent columns based on merge states and table position.
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func (jr *Junction) RenderJunction(leftColIdx, rightColIdx int) string {
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mergeCurrentL := jr.getMergeState(jr.ctx.Row.Current, leftColIdx)
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mergeCurrentR := jr.getMergeState(jr.ctx.Row.Current, rightColIdx)
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mergeNextL := jr.getMergeState(jr.ctx.Row.Next, leftColIdx)
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mergeNextR := jr.getMergeState(jr.ctx.Row.Next, rightColIdx)
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isSpannedCurrent := mergeCurrentL.Horizontal.Present && !mergeCurrentL.Horizontal.End
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isSpannedNext := mergeNextL.Horizontal.Present && !mergeNextL.Horizontal.End
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vPassThruLStrict := (mergeCurrentL.Vertical.Present && mergeNextL.Vertical.Present && !mergeCurrentL.Vertical.End && !mergeNextL.Vertical.Start) ||
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(mergeCurrentL.Hierarchical.Present && mergeNextL.Hierarchical.Present && !mergeCurrentL.Hierarchical.End && !mergeNextL.Hierarchical.Start)
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vPassThruRStrict := (mergeCurrentR.Vertical.Present && mergeNextR.Vertical.Present && !mergeCurrentR.Vertical.End && !mergeNextR.Vertical.Start) ||
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(mergeCurrentR.Hierarchical.Present && mergeNextR.Hierarchical.Present && !mergeCurrentR.Hierarchical.End && !mergeNextR.Hierarchical.Start)
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isTop := (jr.ctx.Level == tw.LevelHeader && jr.ctx.Row.Location == tw.LocationFirst) ||
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(jr.ctx.Level == tw.LevelBody && jr.ctx.Row.Location == tw.LocationFirst && len(jr.ctx.Row.Previous) == 0)
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isBottom := (jr.ctx.Level == tw.LevelFooter && jr.ctx.Row.Location == tw.LocationEnd) ||
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(jr.ctx.Level == tw.LevelBody && jr.ctx.Row.Location == tw.LocationEnd && !jr.ctx.HasFooter)
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isPreFooter := jr.ctx.Level == tw.LevelFooter && (jr.ctx.Row.Position == tw.Row || jr.ctx.Row.Position == tw.Header)
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if isTop {
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if isSpannedNext {
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symbol := jr.sym.Row()
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return jr.borderTint.Apply(symbol)
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}
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symbol := jr.sym.TopMid()
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return jr.borderTint.Apply(symbol)
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}
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if isBottom {
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if vPassThruLStrict && vPassThruRStrict {
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symbol := jr.sym.Column()
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return jr.separatorTint.Apply(symbol)
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}
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if vPassThruLStrict {
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symbol := jr.sym.MidLeft()
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return jr.borderTint.Apply(symbol)
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}
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if vPassThruRStrict {
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symbol := jr.sym.MidRight()
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return jr.borderTint.Apply(symbol)
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}
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if isSpannedCurrent {
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symbol := jr.sym.Row()
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return jr.borderTint.Apply(symbol)
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}
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symbol := jr.sym.BottomMid()
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return jr.borderTint.Apply(symbol)
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}
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if isPreFooter {
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if vPassThruLStrict && vPassThruRStrict {
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symbol := jr.sym.Column()
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return jr.separatorTint.Apply(symbol)
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}
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if vPassThruLStrict {
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symbol := jr.sym.MidLeft()
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return jr.borderTint.Apply(symbol)
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}
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if vPassThruRStrict {
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symbol := jr.sym.MidRight()
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return jr.borderTint.Apply(symbol)
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}
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if mergeCurrentL.Horizontal.Present {
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if !mergeCurrentL.Horizontal.End && mergeCurrentR.Horizontal.Present && !mergeCurrentR.Horizontal.End {
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jr.logger.Debugf("Footer separator: H-merge continues from col %d to %d (mid-span), using BottomMid", leftColIdx, rightColIdx)
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symbol := jr.sym.BottomMid()
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return jr.borderTint.Apply(symbol)
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}
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if !mergeCurrentL.Horizontal.End && mergeCurrentR.Horizontal.Present && mergeCurrentR.Horizontal.End {
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jr.logger.Debugf("Footer separator: H-merge ends at col %d, using BottomMid", rightColIdx)
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symbol := jr.sym.BottomMid()
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return jr.borderTint.Apply(symbol)
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}
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if mergeCurrentL.Horizontal.End && !mergeCurrentR.Horizontal.Present {
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jr.logger.Debugf("Footer separator: H-merge ends at col %d, next col %d not merged, using Center", leftColIdx, rightColIdx)
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symbol := jr.sym.Center()
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return jr.borderTint.Apply(symbol)
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}
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}
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if isSpannedNext {
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symbol := jr.sym.BottomMid()
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return jr.borderTint.Apply(symbol)
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}
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if isSpannedCurrent {
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symbol := jr.sym.TopMid()
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return jr.borderTint.Apply(symbol)
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}
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symbol := jr.sym.Center()
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return jr.borderTint.Apply(symbol)
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}
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if vPassThruLStrict && vPassThruRStrict {
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symbol := jr.sym.Column()
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return jr.separatorTint.Apply(symbol)
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}
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if vPassThruLStrict {
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symbol := jr.sym.MidLeft()
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return jr.borderTint.Apply(symbol)
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}
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if vPassThruRStrict {
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symbol := jr.sym.MidRight()
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return jr.borderTint.Apply(symbol)
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}
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if isSpannedCurrent && isSpannedNext {
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symbol := jr.sym.Row()
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return jr.borderTint.Apply(symbol)
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}
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if isSpannedCurrent {
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symbol := jr.sym.TopMid()
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return jr.borderTint.Apply(symbol)
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}
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if isSpannedNext {
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symbol := jr.sym.BottomMid()
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return jr.borderTint.Apply(symbol)
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}
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symbol := jr.sym.Center()
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return jr.borderTint.Apply(symbol)
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}
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