Charles KWON OhJun
59568f3301
- Compiler: PP → Lexer → Parser → Analyzer → Gengo pipeline - Parser: 232/236 (98%) Harbour compatibility, registry-based dispatch - RTL: 351 Harbour-compatible functions - RDD: DBF/NTX/CDX engines with Rushmore bitmap optimization - Go Interop: IMPORT + pkg.Func() + obj:Method() with FastPath (15M calls/sec) - HB_FUNC API: Full Harbour C API compatible Go bridge - Concurrency: SPAWN/LAUNCH/GOROUTINE, <-, WATCH, PARALLEL FOR, ASYNC/AWAIT - Extensions: Multi-return, DEFER, Slice, f-string, Nil-safe ?:, CONST - Macro Compiler: Runtime AST parsing and evaluation - Debugger: TUI debugger with source display, breakpoints, stepping - FRB: Native + Pcode dual mode runtime binary - Tests: 13 packages ALL PASS Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
397 lines
8.7 KiB
Plaintext
397 lines
8.7 KiB
Plaintext
// Five TBrowse — ported from Harbour src/rtl/tbrowse.prg
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// Minimal implementation for dbEdit functionality
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// Full Harbour TBrowse: 2719 lines — this is the essential core
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// ============================================================
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// TBColumn class
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// ============================================================
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CLASS TBColumn
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DATA cHeading INIT ""
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DATA bBlock INIT NIL
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DATA cColSep INIT ""
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DATA cHeadSep INIT ""
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DATA cFootSep INIT ""
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DATA cFooting INIT ""
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DATA nWidth INIT 0
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DATA cPicture INIT ""
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METHOD Init(cHeading, bBlock)
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ENDCLASS
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METHOD Init(cHeading, bBlock) CLASS TBColumn
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::cHeading := cHeading
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::bBlock := bBlock
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RETURN Self
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// Constructor function
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FUNCTION TBColumnNew(cHeading, bBlock)
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RETURN TBColumn():Init(cHeading, bBlock)
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// ============================================================
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// TBrowse class
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// ============================================================
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CLASS TBrowse
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DATA nTop INIT 0
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DATA nLeft INIT 0
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DATA nBottom INIT 24
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DATA nRight INIT 79
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DATA aColumns INIT {}
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DATA nColPos INIT 1
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DATA nRowPos INIT 1
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DATA nRowCount INIT 0
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DATA nColOffset INIT 1
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DATA bSkipBlock INIT NIL
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DATA bGoTopBlock INIT NIL
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DATA bGoBottomBlock INIT NIL
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DATA cHeadSep INIT ""
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DATA cColSep INIT ""
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DATA cFootSep INIT ""
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DATA cColorSpec INIT ""
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DATA lStable INIT .F.
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DATA lHitTop INIT .F.
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DATA lHitBottom INIT .F.
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DATA lAutoLite INIT .T.
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DATA lConfigured INIT .F.
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METHOD Init(nTop, nLeft, nBottom, nRight)
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METHOD addColumn(oCol)
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METHOD getColumn(n)
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METHOD colCount()
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METHOD up()
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METHOD down()
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METHOD left()
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METHOD right()
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METHOD pageUp()
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METHOD pageDown()
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METHOD goTop()
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METHOD goBottom()
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METHOD home()
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METHOD end()
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METHOD stabilize()
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METHOD forceStable()
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METHOD refreshAll()
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METHOD refreshCurrent()
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METHOD hiLite()
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METHOD deHilite()
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METHOD configure()
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METHOD dispRow(nRow)
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METHOD dispFrames()
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ENDCLASS
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METHOD Init(nTop, nLeft, nBottom, nRight) CLASS TBrowse
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::nTop := nTop
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::nLeft := nLeft
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::nBottom := nBottom
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::nRight := nRight
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::nRowCount := nBottom - nTop - 1
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IF ::nRowCount < 1
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::nRowCount := 1
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ENDIF
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RETURN Self
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METHOD addColumn(oCol) CLASS TBrowse
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AAdd(::aColumns, oCol)
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RETURN Self
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METHOD getColumn(n) CLASS TBrowse
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IF n >= 1 .AND. n <= Len(::aColumns)
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RETURN ::aColumns[n]
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ENDIF
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RETURN NIL
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METHOD colCount() CLASS TBrowse
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RETURN Len(::aColumns)
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// --- Navigation ---
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METHOD down() CLASS TBrowse
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LOCAL nSkipped
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IF ::nRowPos < ::nRowCount
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// Cursor within screen: skip one record
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nSkipped := Eval(::bSkipBlock, 1)
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IF nSkipped > 0
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::nRowPos += 1
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ELSE
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::lHitBottom := .T.
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ENDIF
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ELSE
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// Cursor at bottom: scroll data
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nSkipped := Eval(::bSkipBlock, 1)
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IF nSkipped <= 0
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::lHitBottom := .T.
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ENDIF
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ENDIF
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::lStable := .F.
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RETURN Self
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METHOD up() CLASS TBrowse
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LOCAL nSkipped
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IF ::nRowPos > 1
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nSkipped := Eval(::bSkipBlock, -1)
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IF nSkipped < 0
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::nRowPos -= 1
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ELSE
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::lHitTop := .T.
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ENDIF
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ELSE
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nSkipped := Eval(::bSkipBlock, -1)
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IF nSkipped >= 0
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::lHitTop := .T.
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ENDIF
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ENDIF
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::lStable := .F.
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RETURN Self
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METHOD pageDown() CLASS TBrowse
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LOCAL nSkipped := Eval(::bSkipBlock, ::nRowCount)
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IF nSkipped <= 0
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::lHitBottom := .T.
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ENDIF
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::lStable := .F.
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RETURN Self
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METHOD pageUp() CLASS TBrowse
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LOCAL nSkipped := Eval(::bSkipBlock, -::nRowCount)
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IF nSkipped >= 0
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::lHitTop := .T.
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ENDIF
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::lStable := .F.
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RETURN Self
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METHOD goTop() CLASS TBrowse
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Eval(::bGoTopBlock)
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::nRowPos := 1
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::lStable := .F.
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RETURN Self
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METHOD goBottom() CLASS TBrowse
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Eval(::bGoBottomBlock)
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::nRowPos := ::nRowCount
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::lStable := .F.
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RETURN Self
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METHOD left() CLASS TBrowse
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IF ::nColPos > 1
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::nColPos -= 1
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IF ::nColPos < ::nColOffset
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::nColOffset := ::nColPos
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ENDIF
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ENDIF
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::lStable := .F.
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RETURN Self
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METHOD right() CLASS TBrowse
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IF ::nColPos < Len(::aColumns)
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::nColPos += 1
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ENDIF
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::lStable := .F.
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RETURN Self
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METHOD home() CLASS TBrowse
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::nColPos := 1
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::nColOffset := 1
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::lStable := .F.
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RETURN Self
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METHOD end() CLASS TBrowse
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::nColPos := Len(::aColumns)
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::lStable := .F.
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RETURN Self
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// --- Display ---
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METHOD configure() CLASS TBrowse
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::lConfigured := .T.
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RETURN Self
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METHOD stabilize() CLASS TBrowse
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IF !::lConfigured
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::configure()
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ENDIF
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::dispFrames()
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// Position back to current row
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LOCAL nSaveSkip := Eval(::bSkipBlock, -(::nRowPos - 1))
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LOCAL i
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FOR i := 1 TO ::nRowCount
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::dispRow(i)
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IF i < ::nRowCount
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Eval(::bSkipBlock, 1)
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ENDIF
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NEXT
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// Restore to current position
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Eval(::bSkipBlock, -(::nRowCount - ::nRowPos))
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::lStable := .T.
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::lHitTop := .F.
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::lHitBottom := .F.
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RETURN .T.
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METHOD forceStable() CLASS TBrowse
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DO WHILE !::lStable
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::stabilize()
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ENDDO
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RETURN Self
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METHOD refreshAll() CLASS TBrowse
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::lStable := .F.
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RETURN Self
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METHOD refreshCurrent() CLASS TBrowse
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::lStable := .F.
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RETURN Self
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METHOD dispFrames() CLASS TBrowse
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LOCAL i, oCol, x, cSep, nWidth
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// Ensure colOffset makes colPos visible
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IF ::nColPos < ::nColOffset
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::nColOffset := ::nColPos
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ENDIF
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// Check if colPos fits on screen
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DO WHILE .T.
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x := ::nLeft
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LOCAL lVisible := .F.
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FOR i := ::nColOffset TO Len(::aColumns)
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oCol := ::aColumns[i]
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nWidth := ::colWidth(oCol)
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IF x + nWidth > ::nRight + 1
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EXIT
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ENDIF
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x += nWidth
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IF i = ::nColPos
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lVisible := .T.
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EXIT
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ENDIF
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IF Len(::cColSep) > 0
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x += Len(::cColSep)
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ENDIF
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NEXT
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IF lVisible
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EXIT
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ENDIF
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::nColOffset += 1
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ENDDO
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// Draw header
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SetPos(::nTop, ::nLeft)
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x := ::nLeft
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FOR i := ::nColOffset TO Len(::aColumns)
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oCol := ::aColumns[i]
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nWidth := ::colWidth(oCol)
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IF x + nWidth > ::nRight + 1
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EXIT
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ENDIF
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IF i = ::nColPos
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DevOut(PadR(oCol:cHeading, nWidth))
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ELSE
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DevOut(PadR(oCol:cHeading, nWidth))
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ENDIF
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x += nWidth
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IF i < Len(::aColumns) .AND. Len(::cColSep) > 0
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DevOut(::cColSep)
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x += Len(::cColSep)
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ENDIF
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NEXT
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// Draw header separator
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IF Len(::cHeadSep) > 0
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SetPos(::nTop + 1, ::nLeft)
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cSep := Left(::cHeadSep, 1)
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DevOut(Replicate(cSep, ::nRight - ::nLeft + 1))
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ENDIF
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RETURN Self
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METHOD dispRow(nRow) CLASS TBrowse
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LOCAL i, oCol, x, nWidth, cVal, nScreenRow
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nScreenRow := ::nTop + 1 + nRow // +1 for header separator
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IF Len(::cHeadSep) > 0
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nScreenRow += 1
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ENDIF
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SetPos(nScreenRow, ::nLeft)
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x := ::nLeft
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FOR i := ::nColOffset TO Len(::aColumns)
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oCol := ::aColumns[i]
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nWidth := ::colWidth(oCol)
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IF x + nWidth > ::nRight + 1
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EXIT
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ENDIF
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IF oCol:bBlock != NIL
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cVal := PadR(Eval(oCol:bBlock), nWidth)
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ELSE
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cVal := Space(nWidth)
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ENDIF
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IF nRow = ::nRowPos .AND. i = ::nColPos
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// Current cell: reverse video
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DevOut(Chr(27) + "[7m" + cVal + Chr(27) + "[0m")
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ELSEIF nRow = ::nRowPos
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// Current row highlight
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DevOut(Chr(27) + "[47;30m" + cVal + Chr(27) + "[0m")
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ELSE
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DevOut(cVal)
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ENDIF
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x += nWidth
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IF i < Len(::aColumns) .AND. Len(::cColSep) > 0
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DevOut(::cColSep)
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x += Len(::cColSep)
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ENDIF
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NEXT
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RETURN Self
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METHOD hiLite() CLASS TBrowse
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RETURN Self
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METHOD deHilite() CLASS TBrowse
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RETURN Self
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FUNCTION colWidth(oCol)
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LOCAL nW := oCol:nWidth
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IF nW <= 0
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nW := Len(oCol:cHeading)
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IF nW < 10
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nW := 10
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ENDIF
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ENDIF
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RETURN nW
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// ============================================================
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// TBrowseDB — convenience constructor
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// ============================================================
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FUNCTION TBrowseDB(nTop, nLeft, nBottom, nRight)
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LOCAL o := TBrowse():Init(nTop, nLeft, nBottom, nRight)
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o:bSkipBlock := {|n| DBSkipBlock(n)}
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o:bGoTopBlock := {|| dbGoTop()}
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o:bGoBottomBlock := {|| dbGoBottom()}
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RETURN o
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FUNCTION DBSkipBlock(nRecs)
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LOCAL nSkipped := 0
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IF nRecs > 0
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DO WHILE nSkipped < nRecs
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SKIP
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IF EOF()
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SKIP -1
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EXIT
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ENDIF
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nSkipped++
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ENDDO
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ELSEIF nRecs < 0
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DO WHILE nSkipped > nRecs
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SKIP -1
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IF BOF()
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EXIT
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ENDIF
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nSkipped--
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ENDDO
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ENDIF
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RETURN nSkipped
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