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			343 lines
		
	
	
		
			9.7 KiB
		
	
	
	
		
			ObjectPascal
		
	
	
	
	
	
			
		
		
	
	
			343 lines
		
	
	
		
			9.7 KiB
		
	
	
	
		
			ObjectPascal
		
	
	
	
	
	
{
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 *****************************************************************************
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  See the file COPYING.modifiedLGPL.txt, included in this distribution,
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  for details about the license.
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 *****************************************************************************
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  Author: Mattias Gaertner
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  Abstract:
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    Interface to the Messages window (below the source editor).
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}
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unit IDEMsgIntf;
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{$mode objfpc}{$H+}
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interface
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uses
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  Classes, SysUtils, contnrs, Forms, Menus,
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  IDECommands, IDEExternToolIntf, MenuIntf, LazFileUtils, LazLoggerBase;
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type
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  TMsgQuickFixes = class;
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  { TMsgQuickFix }
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  TMsgQuickFix = class
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  public
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    procedure CreateMenuItems(Fixes: TMsgQuickFixes); virtual;
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    procedure JumpTo({%H-}Msg: TMessageLine; var {%H-}Handled: boolean); virtual; // called when user (double) clicks on message
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    procedure QuickFix(Fixes: TMsgQuickFixes; Msg: TMessageLine); virtual; // Msg=nil means fix all Fixes.Lines
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  end;
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  TMsgQuickFixClass = class of TMsgQuickFix;
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  { TMsgQuickFixes }
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  TMsgQuickFixes = class(TComponent)
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  private
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    function GetLines(Index: integer): TMessageLine; inline;
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    function GetQuickFixes(Index: integer): TMsgQuickFix; inline;
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  protected
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    fMsg: TFPList; // list of TMessageLine
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    fItems: TObjectList; // list of TMsgQuickFix
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    FCurrentSender: TObject;
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    FCurrentCommand: TIDEMenuCommand;
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  public
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    constructor Create(aOwner: TComponent); override;
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    destructor Destroy; override;
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    procedure RegisterQuickFix(Fix: TMsgQuickFix);
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    procedure UnregisterQuickFix(Fix: TMsgQuickFix);
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    function Count: integer; inline;
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    property Items[Index: integer]: TMsgQuickFix read GetQuickFixes; default;
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    function LineCount: integer; inline;
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    property Lines[Index: integer]: TMessageLine read GetLines;
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    function AddMenuItem(Fix: TMsgQuickFix; Msg: TMessageLine; aCaption: string;
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      aTag: PtrInt = 0): TIDEMenuCommand; virtual; abstract;
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    property CurrentSender: TObject read FCurrentSender;
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    property CurrentCommand: TIDEMenuCommand read FCurrentCommand;
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  end;
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var
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  MsgQuickFixes: TMsgQuickFixes = nil; // set by IDE
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procedure RegisterIDEMsgQuickFix(Fix: TMsgQuickFix);
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type
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  { TIDEMessagesWindowInterface }
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  TIDEMessagesWindowInterface = class(TForm)
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  protected
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    function GetViews(Index: integer): TExtToolView; virtual; abstract;
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  public
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    procedure Clear; virtual; abstract; // clears all finished views
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    function ViewCount: integer; virtual; abstract;
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    property Views[Index: integer]: TExtToolView read GetViews;
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    function GetView(aCaption: string; CreateIfNotExist: boolean): TExtToolView; virtual; abstract;
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    function CreateView(aCaptionPrefix: string): TExtToolView; virtual; abstract;
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    function FindUnfinishedView: TExtToolView; virtual; abstract;
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    procedure DeleteView(View: TExtToolView); virtual; abstract; // free view
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    function IndexOfView(View: TExtToolView): integer; virtual; abstract;
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    procedure SelectMsgLine(Msg: TMessageLine); virtual; abstract;
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    function SelectFirstUrgentMessage(aMinUrgency: TMessageLineUrgency;
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      WithSrcPos: boolean): boolean; virtual; abstract;
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    function SelectNextUrgentMessage(aMinUrgency: TMessageLineUrgency;
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      WithSrcPos, Downwards: boolean): boolean; virtual; abstract;
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    function AddCustomMessage(TheUrgency: TMessageLineUrgency; Msg: string;
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      aSrcFilename: string = ''; LineNumber: integer = 0; Column: integer = 0;
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      const ViewCaption: string = ''): TMessageLine; virtual; abstract;
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    function GetSelectedLine: TMessageLine; virtual; abstract;
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    procedure BeginBlock(ClearOldBlocks: Boolean = true); deprecated; // not needed anymore
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    procedure AddMsg(const Msg, {%H-}CurDir: string; {%H-}OriginalIndex: integer;
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      Parts: TStrings = nil); deprecated; // use AddCustomMessages instead or create a new view via GetView or CreateView
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    procedure EndBlock; deprecated; // not needed anymore
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  end;
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var
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  IDEMessagesWindow: TIDEMessagesWindowInterface = nil;// initialized by the IDE
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function AddIDEMessage(TheUrgency: TMessageLineUrgency; Msg: string;
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  aSrcFilename: string = ''; LineNumber: integer = 0; Column: integer = 0;
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  const ViewCaption: string = ''): TMessageLine;
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implementation
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procedure RegisterIDEMsgQuickFix(Fix: TMsgQuickFix);
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begin
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  MsgQuickFixes.RegisterQuickFix(Fix);
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end;
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function AddIDEMessage(TheUrgency: TMessageLineUrgency; Msg: string;
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  aSrcFilename: string; LineNumber: integer; Column: integer;
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  const ViewCaption: string): TMessageLine;
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var
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  s: String;
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begin
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  s:=aSrcFilename;
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  if LineNumber>0 then
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    s+='('+IntToStr(LineNumber)+','+IntToStr(Column)+')';
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  s+=' '+MessageLineUrgencyNames[TheUrgency]+': ';
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  if ViewCaption<>'' then
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    s+='('+ViewCaption+') ';
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  s+=Msg;
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  DebugLn(s);
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  if IDEMessagesWindow<>nil then
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    Result:=IDEMessagesWindow.AddCustomMessage(TheUrgency,Msg,aSrcFilename,LineNumber,Column,ViewCaption)
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  else
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    Result:=nil;
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end;
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{ TIDEMessagesWindowInterface }
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procedure TIDEMessagesWindowInterface.BeginBlock(ClearOldBlocks: Boolean);
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begin
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  if ClearOldBlocks then
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    Clear;
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end;
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procedure TIDEMessagesWindowInterface.AddMsg(const Msg, CurDir: string;
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  OriginalIndex: integer; Parts: TStrings);
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  function StrToUrgency(s: string; Def: TMessageLineUrgency): TMessageLineUrgency;
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  begin
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    if CompareText(s,'Error')=0 then
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      Result:=mluError
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    else if CompareText(s,'Warning')=0 then
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      Result:=mluWarning
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    else if CompareText(s,'Note')=0 then
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      Result:=mluNote
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    else if CompareText(s,'Hint')=0 then
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      Result:=mluHint
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    else
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      Result:=Def;
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  end;
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var
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  s: String;
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  Urgency: TMessageLineUrgency;
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  Line: Integer;
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  Column: Integer;
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  p: SizeInt;
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  ColonPos: SizeInt;
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  Filename: String;
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  Message: String;
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begin
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  Urgency:=mluImportant;
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  Line:=0;
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  Column:=0;
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  Filename:='';
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  Message:=Msg;
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  ColonPos:=Pos(':',Message);
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  if ColonPos>0 then begin
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    // check for
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    //  urgency: Msg
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    //  filename(line) urgency: Msg
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    //  filename(line,col) urgency: Msg
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    s:=LeftStr(Message,ColonPos-1);
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    p:=Pos('(',s);
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    if p>0 then begin
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      // has filename(...:
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      Filename:=TrimFilename(LeftStr(s,p-1));
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      Delete(s,1,p);
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      // get line number
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      p:=1;
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      while (p<=length(s)) and (s[p] in ['0'..'9']) do inc(p);
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      Line:=StrToIntDef(LeftStr(s,p-1),0);
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      Delete(s,1,p-1);
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      if (p<=length(s)) and (s[p]=',') then begin
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        // get column
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        Delete(s,1,1);
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        while (p<=length(s)) and (s[p] in ['0'..'9']) do inc(p);
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        Column:=StrToIntDef(LeftStr(s,p-1),0);
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        Delete(s,1,p-1);
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      end;
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      if (p<=length(s)) and (s[p]=')') then begin
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        inc(p);
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        while (p<=length(s)) and (s[p]=' ') do inc(p);
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        Delete(s,1,p-1);
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      end;
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    end;
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    // check for urgency (a single word)
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    p:=1;
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    while (p<=length(s)) and (s[p] in ['a'..'z','A'..'Z',#128..#255]) do inc(p);
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    if (p>1) and (p<length(s)) then begin
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      Urgency:=StrToUrgency(s,Urgency);
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      Delete(Message,1,ColonPos);
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      Message:=Trim(Message);
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    end;
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  end;
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  if Parts<>nil then begin
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    Urgency:=StrToUrgency(Parts.Values['Type'],Urgency);
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    Line:=StrToIntDef(Parts.Values['Line'],Line);
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    Column:=StrToIntDef(Parts.Values['Column'],Column);
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    if Parts.Values['Filename']<>'' then
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      Filename:=Parts.Values['Filename'];
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    if Parts.Values['Message']<>'' then
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      Message:=Parts.Values['Message'];
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  end;
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  AddCustomMessage(Urgency,Message,Filename,Line,Column);
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end;
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procedure TIDEMessagesWindowInterface.EndBlock;
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begin
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end;
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{ TMsgQuickFix }
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procedure TMsgQuickFix.QuickFix(Fixes: TMsgQuickFixes; Msg: TMessageLine);
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var
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  i: Integer;
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begin
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  // this is purely an example
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  if Msg<>nil then begin
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    if Msg.MsgID=-11111 then begin
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      // fix the cause for the message
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      // ...
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      // mark message as handled
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      Msg.MarkFixed;
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    end;
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  end else begin
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    // example for fixing multiple messages at once
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    for i:=0 to Fixes.LineCount-1 do begin
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      Msg:=Fixes.Lines[i];
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      if Msg.MsgID=-11111 then begin
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        // fix the cause for the message
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        // ...
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        // mark message as handled
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        Msg.MarkFixed;
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      end;
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    end;
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  end;
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end;
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procedure TMsgQuickFix.CreateMenuItems(Fixes: TMsgQuickFixes);
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var
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  i: Integer;
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  Msg: TMessageLine;
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begin
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  // this is an example how to check the selected messages
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  for i:=0 to Fixes.LineCount-1 do begin
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    Msg:=Fixes.Lines[i];
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    // here are some examples how to test if a message fits
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    if (Msg.Urgency<mluWarning)
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    and (Msg.MsgID=-11111)
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    and (Msg.Line>0)
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    and (Msg.Column>0)
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    and (Msg.SubTool=SubToolFPC)
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    and (Msg.GetFullFilename<>'')
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    and (Pos('LazarusExample',Msg.Msg)>0)
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    then
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      // this message can be quick fixed => add a menu item
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      Fixes.AddMenuItem(Self,Msg,'Change this or that to fix this item');
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  end;
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end;
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procedure TMsgQuickFix.JumpTo(Msg: TMessageLine; var Handled: boolean);
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begin
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end;
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{ TMsgQuickFixes }
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// inline
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function TMsgQuickFixes.GetLines(Index: integer): TMessageLine;
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begin
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  Result:=TMessageLine(fMsg[index]);
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end;
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// inline
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function TMsgQuickFixes.GetQuickFixes(Index: integer): TMsgQuickFix;
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begin
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  Result:=TMsgQuickFix(fItems[Index]);
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end;
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// inline
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function TMsgQuickFixes.Count: integer;
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begin
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  Result:=fItems.Count;
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end;
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// inline
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function TMsgQuickFixes.LineCount: integer;
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begin
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  Result:=fMsg.Count;
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end;
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constructor TMsgQuickFixes.Create(aOwner: TComponent);
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begin
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  inherited Create(aOwner);
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  fItems:=TObjectList.create(true);
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  fMsg:=TFPList.Create;
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end;
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destructor TMsgQuickFixes.Destroy;
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begin
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  FreeAndNil(fMsg);
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  FreeAndNil(fItems);
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  inherited Destroy;
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  if MsgQuickFixes=Self then
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    MsgQuickFixes:=nil;
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end;
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procedure TMsgQuickFixes.RegisterQuickFix(Fix: TMsgQuickFix);
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begin
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  if fItems.IndexOf(Fix)>=0 then
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    raise Exception.Create('quick fix already registered');
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  fItems.Add(Fix);
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end;
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procedure TMsgQuickFixes.UnregisterQuickFix(Fix: TMsgQuickFix);
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begin
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  fItems.Remove(Fix);
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end;
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end.
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