path: root/src/base/UEditorLyrics.pas

unit UEditorLyrics;

interface

{$IFDEF FPC}
  {$MODE Delphi}
{$ENDIF}

{$I switches.inc}

uses
  SysUtils,
  gl,
  UMusic,
  UTexture;

type
  TWord = record
      X:      real;
      Y:      real;
      Size:   real;
      Width:  real;
      Text:   string;
      ColR:   real;
      ColG:   real;
      ColB:   real;
      FontStyle:  integer;
      Italic:     boolean;
      Selected:   boolean;
  end;

  TEditorLyrics = class
    private
      AlignI:         integer;
      XR:             real;
      YR:             real;
      SizeR:          real;
      SelectedI:      integer;
      FontStyleI:     integer;          // font number
      Word:           array of TWord;

      procedure SetX(Value: real);
      procedure SetY(Value: real);
      function GetClientX: real;
      procedure SetAlign(Value: integer);
      function GetSize: real;
      procedure SetSize(Value: real);
      procedure SetSelected(Value: integer);
      procedure SetFStyle(Value: integer);
      procedure AddWord(Text: string);
      procedure Refresh;
    public
      ColR:     real;
      ColG:     real;
      ColB:     real;
      ColSR:    real;
      ColSG:    real;
      ColSB:    real;
      Italic:   boolean;

      constructor Create;
      destructor Destroy; override;

      procedure AddLine(NrLine: integer);

      procedure Clear;
      procedure Draw;
    published
      property X: real write SetX;
      property Y: real write SetY;
      property ClientX: real read GetClientX;
      property Align: integer write SetAlign;
      property Size: real read GetSize write SetSize;
      property Selected: integer read SelectedI write SetSelected;
      property FontStyle: integer write SetFStyle;
  end;

implementation

uses
  TextGL, UGraphic, UDrawTexture, Math, USkins;

constructor TEditorLyrics.Create;
begin
  inherited;
end;

destructor TEditorLyrics.Destroy;
begin
  SetLength(Word, 0);
  inherited;
end;

procedure TEditorLyrics.SetX(Value: real);
begin
  XR := Value;
end;

procedure TEditorLyrics.SetY(Value: real);
begin
  YR := Value;
end;

function TEditorLyrics.GetClientX: real;
begin
  Result := Word[0].X;
end;

procedure TEditorLyrics.SetAlign(Value: integer);
begin
  AlignI := Value;
end;

function TEditorLyrics.GetSize: real;
begin
  Result := SizeR;
end;

procedure TEditorLyrics.SetSize(Value: real);
begin
  SizeR := Value;
end;

procedure TEditorLyrics.SetSelected(Value: integer);
var
  W:  integer;
begin
  if (SelectedI > -1) and (SelectedI <= High(Word)) then
  begin
    Word[SelectedI].Selected := false;
    Word[SelectedI].ColR := ColR;
    Word[SelectedI].ColG := ColG;
    Word[SelectedI].ColB := ColB;
  end;

  SelectedI := Value;
  if (Value > -1) and (Value <= High(Word)) then
  begin
    Word[Value].Selected := true;
    Word[Value].ColR := ColSR;
    Word[Value].ColG := ColSG;
    Word[Value].ColB := ColSB;
  end;

  Refresh;
end;

procedure TEditorLyrics.SetFStyle(Value: integer);
begin
  FontStyleI := Value;
end;

procedure TEditorLyrics.AddWord(Text: string);
var
  WordNum:    integer;
begin
  WordNum := Length(Word);
  SetLength(Word, WordNum + 1);
  if WordNum = 0 then begin
    Word[WordNum].X := XR;
  end else begin
    Word[WordNum].X := Word[WordNum - 1].X + Word[WordNum - 1].Width;
  end;

  Word[WordNum].Y := YR;
  Word[WordNum].Size := SizeR;
  Word[WordNum].FontStyle := FontStyleI;
  SetFontStyle(FontStyleI);
  SetFontSize(SizeR);
  Word[WordNum].Width := glTextWidth(pchar(Text));
  Word[WordNum].Text := Text;
  Word[WordNum].ColR := ColR;
  Word[WordNum].ColG := ColG;
  Word[WordNum].ColB := ColB;
  Word[WordNum].Italic := Italic;

  Refresh;
end;

procedure TEditorLyrics.AddLine(NrLine: integer);
var
  N:    integer;
begin
  Clear;
  for N := 0 to Lines[0].Line[NrLine].HighNote do begin
    Italic := Lines[0].Line[NrLine].Note[N].NoteType = ntFreestyle;
    AddWord(Lines[0].Line[NrLine].Note[N].Text);
  end;
  Selected := -1;
end;

procedure TEditorLyrics.Clear;
begin
  SetLength(Word, 0);
  SelectedI := -1;
end;

procedure TEditorLyrics.Refresh;
var
  W:          integer;
  TotWidth:   real;
begin
  if AlignI = 1 then begin
    TotWidth := 0;
    for W := 0 to High(Word) do
      TotWidth := TotWidth + Word[W].Width;

    Word[0].X := XR - TotWidth / 2;
    for W := 1 to High(Word) do
      Word[W].X := Word[W - 1].X + Word[W - 1].Width;
  end;
end;

procedure TEditorLyrics.Draw;
var
  W:    integer;
begin
  for W := 0 to High(Word) do
  begin
    SetFontStyle(Word[W].FontStyle);
    SetFontPos(Word[W].X+ 10*ScreenX, Word[W].Y);
    SetFontSize(Word[W].Size);
    SetFontItalic(Word[W].Italic);
    glColor3f(Word[W].ColR, Word[W].ColG, Word[W].ColB);
    glPrint(pchar(Word[W].Text));
  end;
end;

end.