TMainForm の TImage コンポーネントに Watter Bubble を作成するプロジェクトが 1 つあります。コードは次のとおりです。
unit KoushikHalder01;
interface
uses
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Math, Vcl.ExtCtrls, Vcl.Imaging.pngimage, WaterEffect;
type
TMainform = class(TForm)
Image01: TImage;
Timer01: TTimer;
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure Timer01Timer(Sender: TObject);
procedure Image01MouseMove(Sender: TObject; Shift: TShiftState; X,
Y: Integer);
private
{ Private declarations }
Water: TWaterEffect;
Bmp: TBitmap;
public
{ Public declarations }
end;
var
Mainform: TMainform;
implementation
{$R *.dfm}
procedure TMainform.FormCreate(Sender: TObject);
begin
Bmp := TBitmap.Create;
Bmp.Assign(Image01.Picture.Graphic);
Image01.Picture.Graphic := nil;
Image01.Picture.Bitmap.Height := Bmp.Height;
Image01.Picture.Bitmap.Width := Bmp.Width;
Water := TWaterEffect.Create;
Water.SetSize(Bmp.Width,Bmp.Height);
end;
procedure TMainform.FormDestroy(Sender: TObject);
begin
Bmp.Free;
Water.Free;
end;
procedure TMainform.Image01MouseMove(Sender: TObject; Shift: TShiftState; X,
Y: Integer);
begin
Water.Blob(x,y,1,100);
end;
procedure TMainform.Timer01Timer(Sender: TObject);
begin
if Random(8) = 1 then
Water.Blob(-1, -1, Random(1) + 1, Random(500) + 50);
Water.Render(Bmp, Image01.Picture.Bitmap);
Image01.Repaint;
end;
end.
私のプロジェクトでは、「WaterEffect」という名前の別のユニットがあり、同じコードは次のとおりです。
unit WaterEffect;
interface
uses
Windows, SysUtils, Graphics, Math;
const
csDefDamping = 20;
type
PIntArray = ^TIntArray;
TIntArray = array[0..65535] of Integer;
PPIntArray = ^TPIntArray;
TPIntArray = array[0..65535] of PIntArray;
PRGBArray = ^TRGBArray;
TRGBArray = array[0..65535] of TRGBTriple;
PPRGBArray = ^TPRGBArray;
TPRGBArray = array[0..65535] of PRGBArray;
TWaterDamping = 1..99;
TWaterEffect = class(TObject)
private
{ Private declarations }
FLightModifier: Integer;
FWidth: Integer;
FHeight: Integer;
FBuff1: Pointer;
FBuff2: Pointer;
FScanLine1: PPIntArray;
FScanLine2: PPIntArray;
FScanLineSrc: PPRGBArray;
FDamping: TWaterDamping;
procedure SetDamping(Value: TWaterDamping);
protected
{ Protected declarations }
procedure CalcWater;
procedure DrawWater(ALightModifier: Integer; Src, Dst: TBitmap);
public
{ Public declarations }
constructor Create;
destructor Destroy; override;
procedure ClearWater;
procedure SetSize(AWidth, AHeight: Integer);
procedure Render(Src, Dst: TBitmap);
procedure Blob(x, y: Integer; ARadius, AHeight: Integer);
property Damping: TWaterDamping read FDamping write SetDamping;
end;
implementation
{ WaterEffect }
const
RAND_MAX = $7FFF;
procedure TWaterEffect.Blob(x, y: Integer; ARadius, AHeight: Integer);
var
Rquad: Integer;
cx, cy, cyq: Integer;
Left, Top, Right, Bottom: Integer;
begin
if (x < 0) or (x > FWidth - 1) then x := 1 + ARadius + Random(RAND_MAX) mod (FWidth - 2 * ARadius - 1);
if (y < 0) or (y > FHeight - 1) then y := 1 + ARadius + Random(RAND_MAX) mod (FHeight - 2 * ARadius - 1);
Left := -Min(x, ARadius);
Right := Min(FWidth - 1 - x, ARadius);
Top := -Min(y, ARadius);
Bottom := Min(FHeight - 1 - y, ARadius);
Rquad := ARadius * ARadius;
for cy := Top to Bottom do
begin
cyq := cy * cy;
for cx := Left to Right do
begin
if (cx * cx + cyq <= Rquad) then
begin
Inc(FScanLine1[cy + y][cx + x], AHeight);
end;
end;
end;
end;
procedure TWaterEffect.CalcWater;
var
x, y, xl, xr: Integer;
NewH: Integer;
P, P1, P2, P3: PIntArray;
PT: Pointer;
Rate: Integer;
begin
Rate := (100 - FDamping) * 256 div 100;
for y := 0 to FHeight - 1 do
begin
P := FScanLine2[y];
P1 := FScanLine1[Max(y - 1, 0)];
P2 := FScanLine1[y];
P3 := FScanLine1[Min(y + 1, FHeight - 1)];
for x := 0 to FWidth - 1 do
begin
xl := Max(x - 1, 0);
xr := Min(x + 1, FWidth - 1);
NewH := (P1[xl] + P1[x] + P1[xr] + P2[xl] + P2[xr] + P3[xl] + P3[x] + P3[xr]) div 4 - P[x];
P[x] := NewH * Rate div 256;
end;
end;
PT := FBuff1;
FBuff1 := FBuff2;
FBuff2 := PT;
PT := FScanLine1;
FScanLine1 := FScanLine2;
FScanLine2 := PT;
end;
procedure TWaterEffect.ClearWater;
begin
if FBuff1 <> nil then ZeroMemory(FBuff1, (FWidth * FHeight) * SizeOf(Integer));
if FBuff2 <> nil then ZeroMemory(FBuff2, (FWidth * FHeight) * SizeOf(Integer));
end;
constructor TWaterEffect.Create;
begin
inherited;
FLightModifier := 10;
FDamping := csDefDamping;
end;
destructor TWaterEffect.Destroy;
begin
if FBuff1 <> nil then FreeMem(FBuff1);
if FBuff2 <> nil then FreeMem(FBuff2);
if FScanLine1 <> nil then FreeMem(FScanLine1);
if FScanLine2 <> nil then FreeMem(FScanLine2);
if FScanLineSrc <> nil then FreeMem(FScanLineSrc);
inherited;
end;
procedure TWaterEffect.DrawWater(ALightModifier: Integer; Src, Dst: TBitmap);
var
dx, dy: Integer;
i, c, x, y: Integer;
P1, P2, P3: PIntArray;
PSrc, PDst: PRGBArray;
PSrcDot, PDstDot: PRGBTriple;
BytesPerLine1, BytesPerLine2: Integer;
begin
Src.PixelFormat := pf24bit;
Dst.PixelFormat := pf24bit;
FScanLineSrc[0] := Src.ScanLine[0];
BytesPerLine1 := Integer(Src.ScanLine[1]) - Integer(FScanLineSrc[0]);
for i := 1 to FHeight - 1 do FScanLineSrc[i] := PRGBArray(Integer(FScanLineSrc[i - 1]) + BytesPerLine1);
PDst := Dst.ScanLine[0];
BytesPerLine2 := Integer(Dst.ScanLine[1]) - Integer(PDst);
for y := 0 to FHeight - 1 do
begin
PSrc := FScanLineSrc[y];
P1 := FScanLine1[Max(y - 1, 0)];
P2 := FScanLine1[y];
P3 := FScanLine1[Min(y + 1, FHeight - 1)];
for x := 0 to FWidth - 1 do
begin
dx := P2[Max(x - 1, 0)] - P2[Min(x + 1, FWidth - 1)];
dy := P1[x] - P3[x];
if (x + dx >= 0) and (x + dx < FWidth) and (y + dy >= 0) and (y + dy < FHeight) then
begin
PSrcDot := @FScanLineSrc[y + dy][x + dx];
PDstDot := @PDst[x];
c := PSrcDot.rgbtBlue - dx;
if c < 0 then PDstDot.rgbtBlue := 0 else if c > 255 then PDstDot.rgbtBlue := 255 else PDstDot.rgbtBlue := c;
c := PSrcDot.rgbtGreen - dx;
if c < 0 then PDstDot.rgbtGreen := 0 else if c > 255 then PDstDot.rgbtGreen := 255 else PDstDot.rgbtGreen := c;
c := PSrcDot.rgbtRed - dx;
if c < 0 then PDstDot.rgbtRed := 0 else if c > 255 then PDstDot.rgbtRed := 255 else PDstDot.rgbtRed := c;
end
else
begin
PDst[x] := PSrc[x];
end;
end;
PDst := PRGBArray(Integer(PDst) + BytesPerLine2);
end;
end;
procedure TWaterEffect.Render(Src, Dst: TBitmap);
begin
CalcWater;
DrawWater(FLightModifier, Src, Dst);
end;
procedure TWaterEffect.SetDamping(Value: TWaterDamping);
begin
if (Value >= Low(TWaterDamping)) and (Value <= High(TWaterDamping)) then FDamping := Value;
end;
procedure TWaterEffect.SetSize(AWidth, AHeight: Integer);
var
i: Integer;
begin
if (AWidth <= 0) or (AHeight <= 0) then
begin
AWidth := 0;
AHeight := 0;
end;
FWidth := AWidth;
FHeight := AHeight;
ReallocMem(FBuff1, FWidth * FHeight * SizeOf(Integer));
ReallocMem(FBuff2, FWidth * FHeight * SizeOf(Integer));
ReallocMem(FScanLine1, FHeight * SizeOf(PIntArray));
ReallocMem(FScanLine2, FHeight * SizeOf(PIntArray));
ReallocMem(FScanLineSrc, FHeight * SizeOf(PRGBArray));
ClearWater;
if FHeight > 0 then
begin
FScanLine1[0] := FBuff1;
FScanLine2[0] := FBuff2;
for i := 1 to FHeight - 1 do
begin
FScanLine1[i] := @FScanLine1[i - 1][FWidth];
FScanLine2[i] := @FScanLine2[i - 1][FWidth];
end;
end;
end;
end.
私の要件は、プロジェクトを単一のユニットでコンパイルすることです。つまり、「WaterEffect」ユニットをプロジェクトから削除し、「WaterEffect」のコードを「KoushikHalder01」ユニットに追加する必要があります。最終的に、次のコードを定義しました。
unit KoushikHalder01;
interface
uses
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Math, Vcl.ExtCtrls, Vcl.Imaging.pngimage;
type
PIntArray = ^TIntArray;
TIntArray = array[0..65535] of Integer;
PPIntArray = ^TPIntArray;
TPIntArray = array[0..65535] of PIntArray;
PRGBArray = ^TRGBArray;
TRGBArray = array[0..65535] of TRGBTriple;
PPRGBArray = ^TPRGBArray;
TPRGBArray = array[0..65535] of PRGBArray;
TWaterDamping = 1..99;
type
TMainform = class(TForm)
Image01: TImage;
Timer01: TTimer;
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure Timer01Timer(Sender: TObject);
procedure Image01MouseMove(Sender: TObject; Shift: TShiftState; X,
Y: Integer);
private
{ Private declarations }
Bmp: TBitmap;
FLightModifier: Integer;
FWidth: Integer;
FHeight: Integer;
FBuff1: Pointer;
FBuff2: Pointer;
FScanLine1: PPIntArray;
FScanLine2: PPIntArray;
FScanLineSrc: PPRGBArray;
FDamping: TWaterDamping;
procedure SetDamping(Value: TWaterDamping);
protected
{ Protected declarations }
procedure CalcWater;
procedure DrawWater(ALightModifier: Integer; Src, Dst: TBitmap);
public
{ Public declarations }
constructor Create;
destructor Destroy; override;
procedure ClearWater;
procedure SetSize(AWidth, AHeight: Integer);
procedure Render(Src, Dst: TBitmap);
procedure Blob(x, y: Integer; ARadius, AHeight: Integer);
property Damping: TWaterDamping read FDamping write SetDamping;
end;
var
Mainform: TMainform;
const
csDefDamping = 20;
RAND_MAX = $7FFF;
implementation
{$R *.dfm}
procedure TMainForm.Blob(x, y: Integer; ARadius, AHeight: Integer);
var
Rquad: Integer;
cx, cy, cyq: Integer;
Left, Top, Right, Bottom: Integer;
begin
if (x < 0) or (x > FWidth - 1) then x := 1 + ARadius + Random(RAND_MAX) mod (FWidth - 2 * ARadius - 1);
if (y < 0) or (y > FHeight - 1) then y := 1 + ARadius + Random(RAND_MAX) mod (FHeight - 2 * ARadius - 1);
Left := -Min(x, ARadius);
Right := Min(FWidth - 1 - x, ARadius);
Top := -Min(y, ARadius);
Bottom := Min(FHeight - 1 - y, ARadius);
Rquad := ARadius * ARadius;
for cy := Top to Bottom do
begin
cyq := cy * cy;
for cx := Left to Right do
begin
if (cx * cx + cyq <= Rquad) then
begin
Inc(FScanLine1[cy + y][cx + x], AHeight);
end;
end;
end;
end;
procedure TMainForm.CalcWater;
var
x, y, xl, xr: Integer;
NewH: Integer;
P, P1, P2, P3: PIntArray;
PT: Pointer;
Rate: Integer;
begin
Rate := (100 - FDamping) * 256 div 100;
for y := 0 to FHeight - 1 do
begin
P := FScanLine2[y];
P1 := FScanLine1[Max(y - 1, 0)];
P2 := FScanLine1[y];
P3 := FScanLine1[Min(y + 1, FHeight - 1)];
for x := 0 to FWidth - 1 do
begin
xl := Max(x - 1, 0);
xr := Min(x + 1, FWidth - 1);
NewH := (P1[xl] + P1[x] + P1[xr] + P2[xl] + P2[xr] + P3[xl] + P3[x] + P3[xr]) div 4 - P[x];
P[x] := NewH * Rate div 256;
end;
end;
PT := FBuff1;
FBuff1 := FBuff2;
FBuff2 := PT;
PT := FScanLine1;
FScanLine1 := FScanLine2;
FScanLine2 := PT;
end;
procedure TMainForm.ClearWater;
begin
if FBuff1 <> nil then ZeroMemory(FBuff1, (FWidth * FHeight) * SizeOf(Integer));
if FBuff2 <> nil then ZeroMemory(FBuff2, (FWidth * FHeight) * SizeOf(Integer));
end;
constructor TMainForm.Create;
begin
inherited;
FLightModifier := 10;
FDamping := csDefDamping;
end;
destructor TMainForm.Destroy;
begin
if FBuff1 <> nil then FreeMem(FBuff1);
if FBuff2 <> nil then FreeMem(FBuff2);
if FScanLine1 <> nil then FreeMem(FScanLine1);
if FScanLine2 <> nil then FreeMem(FScanLine2);
if FScanLineSrc <> nil then FreeMem(FScanLineSrc);
inherited;
end;
procedure TMainForm.DrawWater(ALightModifier: Integer; Src, Dst: TBitmap);
var
dx, dy: Integer;
i, c, x, y: Integer;
P1, P2, P3: PIntArray;
PSrc, PDst: PRGBArray;
PSrcDot, PDstDot: PRGBTriple;
BytesPerLine1, BytesPerLine2: Integer;
begin
Src.PixelFormat := pf24bit;
Dst.PixelFormat := pf24bit;
FScanLineSrc[0] := Src.ScanLine[0];
BytesPerLine1 := Integer(Src.ScanLine[1]) - Integer(FScanLineSrc[0]);
for i := 1 to FHeight - 1 do FScanLineSrc[i] := PRGBArray(Integer(FScanLineSrc[i - 1]) + BytesPerLine1);
PDst := Dst.ScanLine[0];
BytesPerLine2 := Integer(Dst.ScanLine[1]) - Integer(PDst);
for y := 0 to FHeight - 1 do
begin
PSrc := FScanLineSrc[y];
P1 := FScanLine1[Max(y - 1, 0)];
P2 := FScanLine1[y];
P3 := FScanLine1[Min(y + 1, FHeight - 1)];
for x := 0 to FWidth - 1 do
begin
dx := P2[Max(x - 1, 0)] - P2[Min(x + 1, FWidth - 1)];
dy := P1[x] - P3[x];
if (x + dx >= 0) and (x + dx < FWidth) and (y + dy >= 0) and (y + dy < FHeight) then
begin
PSrcDot := @FScanLineSrc[y + dy][x + dx];
PDstDot := @PDst[x];
c := PSrcDot.rgbtBlue - dx;
if c < 0 then PDstDot.rgbtBlue := 0 else if c > 255 then PDstDot.rgbtBlue := 255 else PDstDot.rgbtBlue := c;
c := PSrcDot.rgbtGreen - dx;
if c < 0 then PDstDot.rgbtGreen := 0 else if c > 255 then PDstDot.rgbtGreen := 255 else PDstDot.rgbtGreen := c;
c := PSrcDot.rgbtRed - dx;
if c < 0 then PDstDot.rgbtRed := 0 else if c > 255 then PDstDot.rgbtRed := 255 else PDstDot.rgbtRed := c;
end
else
begin
PDst[x] := PSrc[x];
end;
end;
PDst := PRGBArray(Integer(PDst) + BytesPerLine2);
end;
end;
procedure TMainForm.Render(Src, Dst: TBitmap);
begin
CalcWater;
DrawWater(FLightModifier, Src, Dst);
end;
procedure TMainForm.SetDamping(Value: TWaterDamping);
begin
if (Value >= Low(TWaterDamping)) and (Value <= High(TWaterDamping)) then FDamping := Value;
end;
procedure TMainForm.SetSize(AWidth, AHeight: Integer);
var
i: Integer;
begin
if (AWidth <= 0) or (AHeight <= 0) then
begin
AWidth := 0;
AHeight := 0;
end;
FWidth := AWidth;
FHeight := AHeight;
ReallocMem(FBuff1, FWidth * FHeight * SizeOf(Integer));
ReallocMem(FBuff2, FWidth * FHeight * SizeOf(Integer));
ReallocMem(FScanLine1, FHeight * SizeOf(PIntArray));
ReallocMem(FScanLine2, FHeight * SizeOf(PIntArray));
ReallocMem(FScanLineSrc, FHeight * SizeOf(PRGBArray));
ClearWater;
if FHeight > 0 then
begin
FScanLine1[0] := FBuff1;
FScanLine2[0] := FBuff2;
for i := 1 to FHeight - 1 do
begin
FScanLine1[i] := @FScanLine1[i - 1][FWidth];
FScanLine2[i] := @FScanLine2[i - 1][FWidth];
end;
end;
end;
procedure TMainform.FormCreate(Sender: TObject);
begin
Bmp := TBitmap.Create;
Bmp.Assign(Image01.Picture.Graphic);
Image01.Picture.Graphic := nil;
Image01.Picture.Bitmap.Height := Bmp.Height;
Image01.Picture.Bitmap.Width := Bmp.Width;
Create;
SetSize(Bmp.Width,Bmp.Height);
end;
procedure TMainform.FormDestroy(Sender: TObject);
begin
Bmp.Free;
Free;
end;
procedure TMainform.Image01MouseMove(Sender: TObject; Shift: TShiftState; X,
Y: Integer);
begin
Blob(x,y,1,100);
end;
procedure TMainform.Timer01Timer(Sender: TObject);
begin
if Random(8) = 1 then
Blob(-1, -1, Random(1) + 1, Random(500) + 50);
Render(Bmp, Image01.Picture.Bitmap);
Image01.Repaint;
end;
end.
コンパイル時に私は得ています
「[DCC エラー] KoushikHalder01.pas(133): E2008 互換性のない型」
constructor TMainForm.Create;
begin
inherited;
「コンストラクタ」と「デストラクタ」の両方の名前を次のように変更しました。
public
{ Public declarations }
constructor BubbleCreate;
destructor BubbleDestroy; override;
プログラムをコンパイルしようとしていますが、
「[DCC エラー] KoushikHalder01.pas(53): E2137 メソッド 'BubbleDestroy'が基本クラスに見つかりません」で
public
{ Public declarations }
constructor BubbleCreate;
destructor BubbleDestroy; override;
ケースをご覧ください。