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{-------------------------------------------------------------------------------
The contents of this file are subject to the Mozilla Public License
Version 1.1 (the "License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.mozilla.org/MPL/
Software distributed under the License is distributed on an "AS IS" basis,
WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
the specific language governing rights and limitations under the License.
Alternatively, the contents of this file may be used under the terms of the
GNU General Public License Version 2 or later (the "GPL"), in which case
the provisions of the GPL are applicable instead of those above.
If you wish to allow use of your version of this file only under the terms
of the GPL and not to allow others to use your version of this file
under the MPL, indicate your decision by deleting the provisions above and
replace them with the notice and other provisions required by the GPL.
If you do not delete the provisions above, a recipient may use your version
of this file under either the MPL or the GPL.
-------------------------------------------------------------------------------}
unit SynEditMarkupGutterMark;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, Graphics, Controls, LCLProc,
SynEditMarkup, SynEditMiscClasses, SynEditMarks;
type
TMarkSection = record
StartX, EndX: Integer; // Physical
Priority: Integer;
Markup: TSynSelectedColor;
end;
PMarkSection = ^TMarkSection;
{ TSynEditMarkupMark }
TSynEditMarkupMark = class(TSynEditMark)
private
FSourceMarkup: TSynSelectedColor;
public
property SourceMarkup: TSynSelectedColor read FSourceMarkup write FSourceMarkup;
end;
{ TSynEditMarkupGutterMark }
TSynEditMarkupGutterMark = class(TSynEditMarkup)
// TODO: subscribe to mark changes for line invalidation => currently done by synedit itself
private
FRowData: Array of TMarkSection;
FWordBreaker: TSynWordBreaker;
protected
procedure DoMarkupChanged(AMarkup: TSynSelectedColor); override;
public
constructor Create(ASynEdit: TSynEditBase; AWordBreaker: TSynWordBreaker);
procedure PrepareMarkupForRow(ARow: Integer); override;
function GetMarkupAttributeAtRowCol(const aRow: Integer;
const aStartCol: TLazSynDisplayTokenBound;
const AnRtlInfo: TLazSynDisplayRtlInfo): TSynSelectedColor; override;
procedure GetNextMarkupColAfterRowCol(const aRow: Integer;
const aStartCol: TLazSynDisplayTokenBound;
const AnRtlInfo: TLazSynDisplayRtlInfo;
out ANextPhys, ANextLog: Integer); override;
end;
implementation
uses
SynEdit;
{ TSynEditMarkupGutterMark }
procedure TSynEditMarkupGutterMark.DoMarkupChanged(AMarkup: TSynSelectedColor);
begin
inherited DoMarkupChanged(AMarkup);
SynEdit.Invalidate;
end;
constructor TSynEditMarkupGutterMark.Create(ASynEdit: TSynEditBase;
AWordBreaker: TSynWordBreaker);
begin
FWordBreaker := AWordBreaker;
inherited Create(ASynEdit);
end;
procedure TSynEditMarkupGutterMark.PrepareMarkupForRow(ARow: Integer);
var
MLine: TSynEditMarkLine;
i, j: Integer;
s: string;
Markup: TSynEditMarkupMark;
Section: PMarkSection;
x: Integer;
begin
MLine := TCustomSynEdit(SynEdit).Marks.Line[ARow];
if MLine = nil then begin
SetLength(FRowData, 0);
exit;
end;
SetLength(FRowData, MLine.Count);
j := 0;
s := '';
for i := 0 to MLine.Count - 1 do begin
if not (MLine[i] is TSynEditMarkupMark) then
continue;
Markup:=TSynEditMarkupMark(MLine[i]);
if Markup.SourceMarkup = nil then
continue;
Section := @FRowData[j];
Section^.Markup := Markup.SourceMarkup;
Section^.Priority := Markup.Priority;
if s='' then
s := Lines[ARow-1];
if s='' then break;
x := FWordBreaker.PrevBoundary(s, Markup.Column, True);
if x < 1 then
x := 1;
Section^.StartX := LogicalToPhysicalPos(Point(x, ARow)).x;
x := FWordBreaker.NextBoundary(s, Markup.Column);
if x < 1 then
x := length(s) + 1;
Section^.EndX := LogicalToPhysicalPos(Point(x, ARow)).x;
if (Section^.StartX > 0) and (Section^.EndX > 0) and (Section^.StartX<Section^.EndX)
then
inc(j);
end;
SetLength(FRowData, j);
end;
function TSynEditMarkupGutterMark.GetMarkupAttributeAtRowCol(const aRow: Integer;
const aStartCol: TLazSynDisplayTokenBound; const AnRtlInfo: TLazSynDisplayRtlInfo): TSynSelectedColor;
var
i, FoundPri: Integer;
Section: PMarkSection;
begin
FoundPri := 0;
Result := nil;
for i := 0 to length(FRowData) - 1 do begin
Section := @FRowData[i];
if (Section^.StartX <= aStartCol.Physical) and (Section^.EndX > aStartCol.Physical) and
( (Section^.Priority < FoundPri) or (Result=nil) )
then begin
Result := Section^.Markup;
MarkupInfo.SetFrameBoundsPhys(Section^.StartX, Section^.EndX);
FoundPri := Section^.Priority;
end;
end;
end;
procedure TSynEditMarkupGutterMark.GetNextMarkupColAfterRowCol(const aRow: Integer;
const aStartCol: TLazSynDisplayTokenBound; const AnRtlInfo: TLazSynDisplayRtlInfo; out ANextPhys,
ANextLog: Integer);
// return the next StartX or EndX after aStartCol
procedure Improve(Col: integer); inline;
begin
if Col <= aStartCol.Physical then exit;
if Col > ANextPhys then exit;
ANextPhys:=Col;
end;
var
i: Integer;
Section: PMarkSection;
begin
ANextLog := -1;
if length(FRowData) = 0 then
begin
ANextPhys := -1;
exit;
end;
ANextPhys := High(ANextPhys);
for i := 0 to length(FRowData) - 1 do begin
Section := @FRowData[i];
Improve(Section^.StartX);
Improve(Section^.EndX);
end;
if ANextPhys = High(ANextPhys) then
ANextPhys := -1;
end;
end.
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