unit uallpreview;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, Grids, BaseGrid, AdvGrid, ExtCtrls, StdCtrls;

type
  TForm4 = class(TForm)
    Panelall: TPanel;
    AdvStringGrid1: TAdvStringGrid;
    Panelsingal: TPanel;
    Panel1: TPanel;
    Label2: TLabel;
    ComboBox1: TComboBox;
    Label1: TLabel;
    Button1: TButton;
    Memo1: TMemo;
    AdvStringGrid2: TAdvStringGrid;
    ScrollBox1: TScrollBox;
    Image1: TImage;
    procedure LoadImages;
    procedure MakeImages;
    procedure makegrid(w, h: integer; bmp: tbitmap);
    procedure FormShow(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Edit1KeyPress(Sender: TObject; var Key: Char);
    procedure ComboBox1Change(Sender: TObject);
    procedure FormCreate(Sender: TObject);
  private
    { Private declarations }

  public
    { Public declarations }
    tRowCount, tColCount, tcellwidth, tcellheight, tpixels: integer;
  end;

var
  Form4: TForm4;

implementation
uses umain, Math, umodify;
{$R *.dfm}

procedure TForm4.LoadImages;
var
  i: integer;
  r, c: integer;
begin
  advstringgrid1.Clear;
  r := 1;
  c := 1;
  advstringgrid1.beginupdate;

  with advstringgrid1 do
    for i := 1 to Form1.listcount do
    begin
//   advstringgrid1.CreatePicture(c,r,true,StretchWithAspectRatio,20,haCenter,vaCenter).LoadFromFile(dirpath+items[i-1]);
//   advstringgrid1.CreatePicture(c,r,true,ShrinkWithAspectRatio,20,haCenter,vaCenter).LoadFromFile(dirpath+items[i-1]);

      advstringgrid1.cells[c, r] := inttostr(i - 1);
      advstringgrid1.CreatePicture(c, r, true, StretchWithAspectRatio, 25, haCenter, vaAboveText).Bitmap := form1.fontlist[i - 1].bmplist;

      inc(c);
      if c = colcount then
      begin
        c := 1;
        inc(r);
      end;
      if r = rowcount then
      begin
        rowcount := rowcount + 1;
        rowheights[rowcount - 1] := rowheights[rowcount - 2];
      end;
    end;
  advstringgrid1.endupdate;
end;

procedure TForm4.makegrid(w, h: integer; bmp: tbitmap);
var
  tmp, bmp1: tbitmap;
  i, j, x, y: integer;
  p: PByteArray;
  Frame: trect;
begin
  tmp := TBitmap.Create;
  tmp.PixelFormat := pf24bit;
  tmp.Width := w;
  tmp.height := h;
  tmp.Canvas.Brush.Color := clblack;
  tmp.Canvas.FillRect(rect(0, 0, w, h));
  tmp.Canvas.Draw(0, 0, bmp);

 // advstringgrid2.beginupdate;
 { for i := 0 to tmp.Height - 1 do
  begin
    p := tmp.scanline[i];
    for j := 0 to tmp.Width - 1 do
    begin
      if P[j * 3 + 2] = 255 then
        AdvStringGrid2.Colors[j, i]:=clred else
        AdvStringGrid2.Colors[j, i]:=clblack
    end;
  end; }
 // advstringgrid2.EndUpdate;

  Image1.Visible := true;
  //加入paintbox 分块显示
  Image1.Width := w * tpixels + 1;
  Image1.height := h * tpixels + 1;

  bmp1 := TBitmap.Create;
  bmp1.PixelFormat := pf24bit;
  bmp1.Width := Image1.Width;
  bmp1.height := Image1.height;
  bmp1.Canvas.Brush.Color := rgb(64, 64, 64);
  bmp1.Canvas.FillRect(Rect(0, 0, bmp1.Width, bmp1.height));
  tColCount := w;
  tRowCount := h;

  // Calculate grid cell size
  tCellWidth := tpixels;
  tCellHeight := tpixels;

  y := 0;
  for i := 0 to tmp.height - 1 do
  begin
    p := tmp.ScanLine[i];
    x := 0;
    for j := 0 to tmp.Width - 1 do
    begin
      Frame.Left := x;
      Frame.Right := x + tCellWidth;
      Frame.Top := y;
      Frame.Bottom := y + tCellHeight;
      DrawEdge(bmp1.Canvas.Handle, Frame, BDR_SUNKENINNER, BF_ADJUST or BF_LEFT);
      DrawEdge(bmp1.Canvas.Handle, Frame, BDR_SUNKENINNER, BF_ADJUST or BF_top);
      bmp1.Canvas.Brush.Color := rgb(p[j * 3 + 2], p[j * 3 + 1], p[j * 3]);
      bmp1.Canvas.FillRect(Frame);
      inc(x, tCellWidth);
    end;
    inc(y, tCellHeight);
  end;
  Image1.Picture.Bitmap := bmp1;
  bmp1.Free;


  tmp.Free;
end;

procedure TForm4.FormShow(Sender: TObject);
begin
  LoadImages;
end;

procedure TForm4.Button1Click(Sender: TObject);
begin
  MakeImages;
end;

procedure TForm4.MakeImages;
var
  s: string;
  usewidth, maxwidth, maxheight, i, v, j,
    tmp1, tmp2, lineheight, linewidth: integer;
  bmp: tbitmap;
  vlist: TStringList;
begin
  vlist := TStringList.Create;
  vlist.Assign(Memo1.Lines);
  if Length(vlist.Text) = 0 then
  begin
    AdvStringGrid2.Clear;
    vlist.Free;
    exit;
  end;
  AdvStringGrid2.Clear;
  maxwidth := 0;
  maxheight := 0;
  lineheight := 0;
  linewidth := 0;
  tmp1 := 0;
  tmp2 := 0;
  bmp := TBitmap.create;
  bmp.PixelFormat := pf4bit;
  //先找到最高的值和总共的宽度
  for j := 0 to vlist.Count - 1 do
  begin
    s := vlist.Strings[j];
    maxwidth := 0;
    for i := 1 to Length(s) do
    begin
      v := ord(s[i]);
      maxwidth := maxwidth + Form1.fontlist[v].width;
      tmp1 := Form1.fontlist[v].height;
      maxheight := Max(tmp1, maxheight);
    end;
    tmp2 := maxwidth;
    lineheight := lineheight + maxheight;
    linewidth := Max(tmp2, linewidth);
  end;


  tRowCount := linewidth;
  tColCount := lineheight;

  //AdvStringGrid2.ColCount := linewidth;
 //AdvStringGrid2.RowCount := lineheight;

  bmp.Width := linewidth;
  bmp.height := lineheight;
  bmp.Canvas.Brush.Color := clblack;
  bmp.Canvas.FillRect(rect(0, 0, bmp.Width, bmp.height));
  tmp2 := 0;
  for j := 0 to vlist.Count - 1 do
  begin
    s := vlist.Strings[j];
    maxwidth := 0;
    for i := 1 to Length(s) do
    begin
      v := ord(s[i]);
      maxwidth := maxwidth + Form1.fontlist[v].width;
      tmp1 := Form1.fontlist[v].height;
      maxheight := Max(tmp1, maxheight);
    end;
    usewidth := 0;
    for i := 1 to Length(s) do
    begin
      v := ord(s[i]);
      bmp.Canvas.Draw(usewidth, tmp2 + maxheight - Form1.fontlist[v].height, Form1.fontlist[v].bmplist);
      usewidth := usewidth + Form1.fontlist[v].width;
    end;
    tmp2 := tmp2 + maxheight;
  end;
  if tpixels = 1 then
  begin
    Image1.Visible := true;
    Image1.Width := linewidth;
    Image1.height := linewidth;
    Image1.Picture.Bitmap := bmp;
  end else
    makegrid(linewidth, lineheight, bmp);
  bmp.Free;
  vlist.Free;
end;

procedure TForm4.Edit1KeyPress(Sender: TObject; var Key: Char);
begin
  if (ord(key) > 128) then //中文
    key := #0 else
    key := key;
end;

procedure TForm4.ComboBox1Change(Sender: TObject);
begin
  case ComboBox1.ItemIndex of
    0:
      begin
        AdvStringGrid2.DefaultRowHeight := 1;
        AdvStringGrid2.DefaultColWidth := 1;
        AdvStringGrid2.GridLineWidth := 0;
        tpixels := 1;
      end;
    1:
      begin
        AdvStringGrid2.GridLineWidth := 1;
        AdvStringGrid2.DefaultRowHeight := 5;
        AdvStringGrid2.DefaultColWidth := 5;
        tpixels := 5;
      end;
    2:
      begin
        AdvStringGrid2.GridLineWidth := 1;
        AdvStringGrid2.DefaultRowHeight := 8;
        AdvStringGrid2.DefaultColWidth := 8;
        tpixels := 8;
      end;
    3:
      begin
        AdvStringGrid2.GridLineWidth := 1;
        AdvStringGrid2.DefaultRowHeight := 12;
        AdvStringGrid2.DefaultColWidth := 12;
        tpixels := 12;
      end;
  end;
  MakeImages;
end;

procedure TForm4.FormCreate(Sender: TObject);
begin
  AdvStringGrid2.HideSelection;
  tpixels := 8;
end;

end.