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SynEdit: Clean up, dead code and duplicates

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git-svn-id: trunk@18597 -
This commit is contained in:
martin 2009-02-07 21:07:30 +00:00
parent f50efde17e
commit 6a87b62df4
4 changed files with 0 additions and 538 deletions
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533
components/synedit/synedit.pp
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@ -2667,7 +2667,6 @@ end;
procedure TCustomSynEdit.PaintTextLines(AClip: TRect; FirstLine, LastLine,
FirstCol, LastCol: integer);
{$IFDEF SYN_LAZARUS}
// FirstLine, LastLine are based 1
// FirstCol, LastCol are screen based 1 without scrolling (physical position).
// i.e. the real screen position is fTextOffset+Pred(FirstCol)*CharWidth
@ -3432,538 +3431,6 @@ begin
fMarkupManager.EndMarkup;
ReAllocMem(TokenAccu.p,0);
end;
{$ELSE below for NOT SYN_LAZARUS ----------------------------------------------}
var
bDoRightEdge: boolean; // right edge
nRightEdge: integer;
// selection info
bAnySelection: boolean; // any selection visible?
nSelL1, nSelCol1: integer; // start of selected area
nSelL2, nSelCol2: integer; // end of selected area
// info about normal and selected text and background colors
bSpecialLine, bLineSelected: boolean;
colFG, colBG: TColor;
colSelFG, colSelBG: TColor;
colEditorBG: TColor;
// info about selection of the current line
nSelStart, nSelEnd: integer;
bComplexLine: boolean;
// painting the background and the text
rcLine, rcToken: TRect;
TokenAccu: record
// Note: s is not managed as a string, it will only grow!!!
// Never use AppendStr or "+", use Len and MaxLen instead and
// copy the string chars directly. This is for efficiency.
Len, MaxLen, CharsBefore: integer;
s: string;
FG, BG: TColor;
Style: TFontStyles;
end;
dc: HDC;
{ local procedures }
procedure ComputeSelectionInfo;
var
p: TPoint;
begin
bAnySelection := FALSE;
// Only if selection is visible anyway.
if (not HideSelection or Self.Focused) then begin
bAnySelection := TRUE;
// Get the *real* start of the selected area.
if (fBlockBegin.Y < fBlockEnd.Y) then begin
nSelL1 := fBlockBegin.Y;
nSelCol1 := fBlockBegin.X;
nSelL2 := fBlockEnd.Y;
nSelCol2 := fBlockEnd.X;
end else if (fBlockBegin.Y > fBlockEnd.Y) then begin
nSelL2 := fBlockBegin.Y;
nSelCol2 := fBlockBegin.X;
nSelL1 := fBlockEnd.Y;
nSelCol1 := fBlockEnd.X;
end else if (fBlockBegin.X <> fBlockEnd.X) then begin
// No selection at all, or it is only on this line.
nSelL1 := fBlockBegin.Y;
nSelL2 := nSelL1;
if (fBlockBegin.X < fBlockEnd.X) then begin
nSelCol1 := fBlockBegin.X;
nSelCol2 := fBlockEnd.X;
end else begin
nSelCol2 := fBlockBegin.X;
nSelCol1 := fBlockEnd.X;
end;
end else
bAnySelection := FALSE;
// If there is any visible selection so far, then test if there is an
// intersection with the area to be painted.
if bAnySelection then begin
// Don't care if the selection is not visible.
bAnySelection := (nSelL2 >= FirstLine) and (nSelL1 <= LastLine);
// In the column selection mode sort the begin and end of the selection,
// this makes the painting code simpler.
if (SelectionMode = smColumn) and (nSelCol1 > nSelCol2) then
SwapInt(nSelCol1, nSelCol2);
if bAnySelection then begin
// Transform the selection from text space into screen space
p := LogicalToPhysicalPos(Point(nSelCol1, nSelL1));
nSelCol1 := p.x;
nSelL1 := p.y;
p := LogicalToPhysicalPos(point(nSelCol2, nSelL2));
nSelCol2 := p.x;
nSelL2 := p.y;
end;
end;
end;
end;
procedure SetDrawingColors(Selected: boolean);
begin
with fTextDrawer do
if Selected then begin
SetBackColor(colSelBG);
SetForeColor(colSelFG);
end else begin
SetBackColor(colBG);
SetForeColor(colFG);
end;
end;
function ColumnToXValue(Col: integer): integer;
// map screen column to screen pixel
begin
Result := fTextOffset + Pred(Col) * fCharWidth;
end;
procedure PaintToken(const Token: string;
TokenLen, CharsBefore, First, Last: integer);
// CharsBefore tells if Token starts at column one or not
var
pszText: PChar;
nCharsToPaint: integer;
nX: integer;
const
ETOOptions = ETO_CLIPPED or ETO_OPAQUE;
begin
if (Last >= First) and (rcToken.Right > rcToken.Left) then begin
nX := ColumnToXValue(First);
Dec(First, CharsBefore);
Dec(Last, CharsBefore);
if (First > TokenLen) then begin
pszText := nil;
nCharsToPaint := 0;
end else begin
{$IFDEF SYN_MBCSSUPPORT}
if (First > 1) and (ByteType(Token, First) = mbTrailByte) then begin
Dec(First);
Dec(nX, fCharWidth);
end;
{$ENDIF}
pszText := PChar(@Token[First]);
nCharsToPaint := Min(Last - First + 1, TokenLen - First + 1);
end;
fTextDrawer.ExtTextOut(nX, rcToken.Top, ETOOptions, rcToken,
pszText, nCharsToPaint);
rcToken.Left := rcToken.Right;
end;
end;
procedure PaintHighlightToken(bFillToEOL: boolean);
var
bComplexToken: boolean;
nC1, nC2, nC1Sel, nC2Sel: integer;
bU1, bSel, bU2: boolean;
nX1, nX2: integer;
begin
// Compute some helper variables.
nC1 := Max(FirstCol, TokenAccu.CharsBefore + 1);
nC2 := Min(LastCol, TokenAccu.CharsBefore + TokenAccu.Len + 1);
if bComplexLine then begin
bU1 := (nC1 < nSelStart);
bSel := (nC1 < nSelEnd) and (nC2 >= nSelStart);
bU2 := (nC2 >= nSelEnd);
bComplexToken := bSel and (bU1 or bU2);
end else begin
bU1 := FALSE; // to shut up Compiler warning Delphi 2
bSel := bLineSelected;
bU2 := FALSE; // to shut up Compiler warning Delphi 2
bComplexToken := FALSE;
end;
// Any token chars accumulated?
if (TokenAccu.Len > 0) then begin
// Initialize the colors and the font style.
if not bSpecialLine then begin
colBG := TokenAccu.BG;
colFG := TokenAccu.FG;
end;
fTextDrawer.SetStyle(TokenAccu.Style);
// Paint the chars
if bComplexToken then begin
// first unselected part of the token
if bU1 then begin
SetDrawingColors(FALSE);
rcToken.Right := ColumnToXValue(nSelStart);
with TokenAccu do PaintToken(s, Len, CharsBefore, nC1, nSelStart);
end;
// selected part of the token
SetDrawingColors(TRUE);
nC1Sel := Max(nSelStart, nC1);
nC2Sel := Min(nSelEnd, nC2);
rcToken.Right := ColumnToXValue(nC2Sel);
with TokenAccu do PaintToken(s, Len, CharsBefore, nC1Sel, nC2Sel);
// second unselected part of the token
if bU2 then begin
SetDrawingColors(FALSE);
rcToken.Right := ColumnToXValue(nC2);
with TokenAccu do PaintToken(s, Len, CharsBefore, nSelEnd, nC2);
end;
end else begin
SetDrawingColors(bSel);
rcToken.Right := ColumnToXValue(nC2);
with TokenAccu do PaintToken(s, Len, CharsBefore, nC1, nC2);
end;
end;
// Fill the background to the end of this line if necessary.
if bFillToEOL and (rcToken.Left < rcLine.Right) then begin
if not bSpecialLine then colBG := colEditorBG;
if bComplexLine then begin
nX1 := ColumnToXValue(nSelStart);
nX2 := ColumnToXValue(nSelEnd);
if (rcToken.Left < nX1) then begin
SetDrawingColors(FALSE);
rcToken.Right := nX1;
InternalFillRect(dc, rcToken);
rcToken.Left := nX1;
end;
if (rcToken.Left < nX2) then begin
SetDrawingColors(TRUE);
rcToken.Right := nX2;
InternalFillRect(dc, rcToken);
rcToken.Left := nX2;
end;
if (rcToken.Left < rcLine.Right) then begin
SetDrawingColors(FALSE);
rcToken.Right := rcLine.Right;
InternalFillRect(dc, rcToken);
end;
end else begin
SetDrawingColors(bLineSelected);
rcToken.Right := rcLine.Right;
InternalFillRect(dc, rcToken);
end;
end;
end;
procedure AddHighlightToken(
const Token: AnsiString;
CharsBefore, TokenLen: integer;
Foreground, Background: TColor;
Style: TFontStyles);
var
bCanAppend: boolean;
bSpacesTest, bIsSpaces: boolean;
i: integer;
function TokenIsSpaces: boolean;
var
pTok: PChar;
begin
if not bSpacesTest then begin
bSpacesTest := TRUE;
pTok := PChar(Token);
while (pTok^ <> #0) do begin
if (pTok^ <> ' ') then break;
Inc(pTok);
end;
bIsSpaces := (pTok^ = #0);
end;
Result := bIsSpaces;
end;
begin
if Background = clNone then Background := colEditorBG;
if Foreground = clNone then Foreground := Font.Color;
// Do we have to paint the old chars first, or can we just append?
bCanAppend := FALSE;
bSpacesTest := FALSE;
if (TokenAccu.Len > 0) then begin
// font style must be the same or token is only spaces
if (TokenAccu.Style = Style)
or (not (fsUnderline in Style) and not (fsUnderline in TokenAccu.Style)
and TokenIsSpaces)
then
// either special colors or same colors
if bSpecialLine or bLineSelected or
// background color must be the same and
((TokenAccu.BG = Background) and
// foreground color must be the same or token is only spaces
((TokenAccu.FG = Foreground) or TokenIsSpaces))
then
bCanAppend := TRUE;
// If we can't append it, then we have to paint the old token chars first.
if not bCanAppend then
PaintHighlightToken(FALSE);
end;
// Don't use AppendStr because it's more expensive.
if bCanAppend then begin
if (TokenAccu.Len + TokenLen > TokenAccu.MaxLen) then begin
TokenAccu.MaxLen := TokenAccu.Len + TokenLen + 32;
SetLength(TokenAccu.s, TokenAccu.MaxLen);
end;
for i := 1 to TokenLen do begin
TokenAccu.s[TokenAccu.Len + i] := Token[i];
end;
Inc(TokenAccu.Len, TokenLen);
end else begin
TokenAccu.Len := TokenLen;
if (TokenAccu.Len > TokenAccu.MaxLen) then begin
TokenAccu.MaxLen := TokenAccu.Len + 32;
SetLength(TokenAccu.s, TokenAccu.MaxLen);
end;
for i := 1 to TokenLen do begin
TokenAccu.s[i] := Token[i];
end;
TokenAccu.CharsBefore := CharsBefore;
TokenAccu.FG := Foreground;
TokenAccu.BG := Background;
TokenAccu.Style := Style;
end;
end;
procedure PaintLines;
var
nLine: integer; // line index for the loop
sLine: string; // the current line (expanded)
// pConvert: TConvertTabsProc; //mh 2000-10-19
sToken: string; // highlighter token info
nTokenPos, nTokenLen: integer;
attr: TSynHighlighterAttributes;
begin
// Initialize rcLine for drawing. Note that Top and Bottom are updated
// inside the loop. Get only the starting point for this.
rcLine := AClip;
rcLine.Bottom := (FirstLine - TopLine) * fTextHeight;
// Make sure the token accumulator string doesn't get reassigned to often.
if Assigned(fHighlighter) then begin
TokenAccu.MaxLen := Max(128, fCharsInWindow);
SetLength(TokenAccu.s, TokenAccu.MaxLen);
end;
{begin} //mh 2000-10-19
// Find the fastest function for the tab expansion.
// pConvert := GetBestConvertTabsProc(fTabWidth);
// Now loop through all the lines. The indices are valid for Lines.
for nLine := FirstLine to LastLine do begin
// Get the expanded line.
// sLine := pConvert(Lines[nLine - 1], fTabWidth);
sLine := TSynEditStringList(Lines).ExpandedStrings[nLine - 1];
{end} //mh 2000-10-19
// Get the information about the line selection. Three different parts
// are possible (unselected before, selected, unselected after), only
// unselected or only selected means bComplexLine will be FALSE. Start
// with no selection, compute based on the visible columns.
bComplexLine := FALSE;
nSelStart := 0;
nSelEnd := 0;
// Does the selection intersect the visible area?
if bAnySelection and (nLine >= nSelL1) and (nLine <= nSelL2) then begin
// Default to a fully selected line. This is correct for the smLine
// selection mode and a good start for the smNormal mode.
nSelStart := FirstCol;
nSelEnd := LastCol + 1;
if (SelectionMode = smColumn) or
((SelectionMode = smNormal) and (nLine = nSelL1))
then
if (nSelCol1 > LastCol) then begin
nSelStart := 0;
nSelEnd := 0;
end else if (nSelCol1 > FirstCol) then begin
nSelStart := nSelCol1;
bComplexLine := TRUE;
end;
if (SelectionMode = smColumn) or
((SelectionMode = smNormal) and (nLine = nSelL2))
then
if (nSelCol2 < FirstCol) then begin
nSelStart := 0;
nSelEnd := 0;
end else if (nSelCol2 < LastCol) then begin
nSelEnd := nSelCol2;
bComplexLine := TRUE;
end;
{$IFDEF SYN_MBCSSUPPORT}
if (SelectionMode = smColumn) then
MBCSGetSelRangeInLineWhenColumnSelectionMode(sLine, nSelStart,
nSelEnd);
{$ENDIF}
end;
// Update the rcLine rect to this line.
rcLine.Top := rcLine.Bottom;
Inc(rcLine.Bottom, fTextHeight);
// Initialize the text and background colors, maybe the line should
// use special values for them.
colFG := Font.Color;
colBG := colEditorBG;
bSpecialLine := DoOnSpecialLineColors(nLine, colFG, colBG);
if bSpecialLine then begin
// The selection colors are just swapped, like seen in Delphi.
colSelFG := colBG;
colSelBG := colFG;
end else begin
colSelFG := fSelectedColor.Foreground;
colSelBG := fSelectedColor.Background;
end;
// Paint the lines depending on the assigned highlighter.
bLineSelected := not bComplexLine and (nSelStart > 0);
rcToken := rcLine;
if not Assigned(fHighlighter) then begin
// Note: The PaintToken procedure will take care of invalid parameters
// like empty token rect or invalid indices into sLine.
nTokenLen := Length(sLine);
if bComplexLine then begin
SetDrawingColors(FALSE);
rcToken.Left := Max(rcLine.Left, ColumnToXValue(FirstCol));
rcToken.Right := Min(rcLine.Right, ColumnToXValue(nSelStart));
PaintToken(sLine, nTokenLen, 0, FirstCol, nSelStart);
rcToken.Left := Max(rcLine.Left, ColumnToXValue(nSelEnd));
rcToken.Right := Min(rcLine.Right, ColumnToXValue(LastCol));
PaintToken(sLine, nTokenLen, 0, nSelEnd, LastCol);
SetDrawingColors(TRUE);
rcToken.Left := Max(rcLine.Left, ColumnToXValue(nSelStart));
rcToken.Right := Min(rcLine.Right, ColumnToXValue(nSelEnd));
PaintToken(sLine, nTokenLen, 0, nSelStart, nSelEnd);
end else begin
SetDrawingColors(bLineSelected);
PaintToken(sLine, nTokenLen, 0, FirstCol, LastCol);
end;
end else begin
// Initialize highlighter with line text and range info. It is
// necessary because we probably did not scan to the end of the last
// line - the internal highlighter range might be wrong.
// fHighlighter.SetRange(Lines.Objects[nLine - 1]);
fHighlighter.SetRange(TSynEditStringList(Lines).Ranges[nLine - 1]); //mh 2000-10-10
fHighlighter.SetLine(sLine, nLine - 1);
// Try to concatenate as many tokens as possible to minimize the count
// of ExtTextOut calls necessary. This depends on the selection state
// or the line having special colors. For spaces the foreground color
// is ignored as well.
TokenAccu.Len := 0;
while not fHighlighter.GetEol do begin
// Test first whether anything of this token is visible.
nTokenPos := fHighlighter.GetTokenPos; // zero-based
sToken := fHighlighter.GetToken;
nTokenLen := Length(sToken);
if (nTokenPos + nTokenLen >= FirstCol) then begin
// It's at least partially visible. Get the token attributes now.
attr := fHighlighter.GetTokenAttribute;
// Store the token chars with the attributes in the TokenAccu
// record. This will paint any chars already stored if there is
// a (visible) change in the attributes.
if Assigned(attr) then
AddHighlightToken(sToken, nTokenPos, nTokenLen, attr.Foreground,
attr.Background, attr.Style)
else
AddHighlightToken(sToken, nTokenPos, nTokenLen, colFG, colBG,
Font.Style);
end;
// Let the highlighter scan the next token.
fHighlighter.Next;
end;
// Draw anything that's left in the TokenAccu record. Fill to the end
// of the invalid area with the correct colors.
PaintHighlightToken(TRUE);
end;
// Now paint the right edge if necessary. We do it line by line to reduce
// the flicker. Should not cost very much anyway, compared to the many
// calls to ExtTextOut.
if bDoRightEdge then begin
Windows.MoveToEx(dc, nRightEdge, rcLine.Top, nil);
Windows.LineTo(dc, nRightEdge, rcLine.Bottom + 1);
//codefold draw splitter line
ypos := rcToken.Bottom - 1;
nLine := PixelsToRowColumn(Point(0, ypos)).Y;
if TSynEditStringList(Lines).FoldType[nLine] in [cfEnd] then
begin
Windows.MoveToEx(dc, nRightEdge, ypos, nil);
Windows.LineTo(dc, fGutterWidth, ypos);
end;
end;
end;
end;
{ end local procedures }
begin
colEditorBG := Color;
if Assigned(Highlighter) and Assigned(Highlighter.WhitespaceAttribute) then
begin
colBG := Highlighter.WhitespaceAttribute.Background;
if colBG <> clNone then
colEditorBG := colBG;
end;
// If the right edge is visible and in the invalid area, prepare to paint it.
// Do this first to realize the pen when getting the dc variable.
bDoRightEdge := FALSE;
if (fRightEdge > 0) then begin // column value
nRightEdge := fTextOffset + fRightEdge * fCharWidth; // pixel value
if (nRightEdge >= AClip.Left) and (nRightEdge <= AClip.Right) then begin
bDoRightEdge := TRUE;
Canvas.Pen.Color := fRightEdgeColor;
Canvas.Pen.Width := 1;
end;
end;
// Do everything else with API calls. This (maybe) realizes the new pen color.
dc := Canvas.Handle;
// If anything of the two pixel space before the text area is visible, then
// fill it with the component background color.
if (AClip.Left < fGutterWidth + 2) then begin
rcToken := AClip;
rcToken.Left := Max(AClip.Left, fGutterWidth);
rcToken.Right := fGutterWidth + 2;
SetBkColor(dc,ColorToRGB(colEditorBG));
InternalFillRect(dc, rcToken);
// Adjust the invalid area to not include this area.
AClip.Left := rcToken.Right;
end;
if (LastLine >= FirstLine) then begin
// Paint the visible text lines. To make this easier, compute first the
// necessary information about the selected area: is there any visible
// selected area, and what are its lines / columns?
// Moved to two local procedures to make it easier to read.
ComputeSelectionInfo;
fTextDrawer.Style := Font.Style;
fTextDrawer.BeginDrawing(dc);
try
PaintLines;
finally
fTextDrawer.EndDrawing;
end;
end;
// If there is anything visible below the last line, then fill this as well.
rcToken := AClip;
rcToken.Top := (LastLine - TopLine + 1) * fTextHeight;
if (rcToken.Top < rcToken.Bottom) then begin
SetBkColor(dc, ColorToRGB(colEditorBG));
InternalFillRect(dc, rcToken);
// Draw the right edge if necessary.
if bDoRightEdge and (not (eoHideRightMargin in Options)) then begin
Windows.MoveToEx(dc, nRightEdge, rcToken.Top, nil);
Windows.LineTo(dc, nRightEdge, rcToken.Bottom + 1);
//codefold draw splitter line
ypos := rcToken.Bottom - 1;
nLine := PixelsToRowColumn(Point(0, ypos)).Y;
if TSynEditStringList(Lines).FoldType[nLine] in [cfEnd] then
begin
Windows.MoveToEx(dc, nRightEdge, ypos, nil);
Windows.LineTo(dc, fGutterWidth, ypos);
end;
end;
end;
end;
{$ENDIF not SYN_LAZARUS}
{$IFDEF SYN_LAZARUS}
procedure TCustomSynEdit.StartPaintBuffer(const ClipRect: TRect);

3
components/synedit/synedittextbuffer.pp
View File

@ -202,10 +202,7 @@ type
AHandler: TStringListLineCountEvent); override;
public
property DosFileFormat: boolean read fDosFileFormat write fDosFileFormat;
{begin} //mh 2000-10-19
property ExpandedStrings[Index: integer]: string read GetExpandedString;
property LengthOfLongestLine: integer read GetLengthOfLongestLine;
{end} //mh 2000-10-19
property Ranges[Index: integer]: TSynEditRange read GetRange write PutRange;
property OnChange: TNotifyEvent read fOnChange write fOnChange;
property OnChanging: TNotifyEvent read fOnChanging write fOnChanging;

1
components/synedit/synedittexttabexpander.pas
View File

@ -60,7 +60,6 @@ TSynEditStringTabExpander = class(TSynEditStringsLinked)
constructor Create(ASynStringSource: TSynEditStrings);
destructor Destroy; override;
property ExpandedStrings[Index: integer]: string read GetExpandedString;
property LengthOfLongestLine: integer read GetLengthOfLongestLine;
// TODO: maybe use inherited for utf8?

1
components/synedit/synedittexttrimmer.pas
View File

@ -78,7 +78,6 @@ type
procedure InsertLines(Index, NumLines: integer); override;
procedure InsertStrings(Index: integer; NewStrings: TStrings); override;
procedure Exchange(Index1, Index2: integer); override;
property ExpandedStrings[Index: integer]: string read GetExpandedString;
property LengthOfLongestLine: integer read GetLengthOfLongestLine;
public
procedure Lock;