This commit is contained in:
2012-09-02 15:24:38 +02:00
commit 5b667b5781
250 changed files with 70477 additions and 0 deletions

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What's New for FreeImage Delphi Wrapper
* : fixed
- : removed
! : changed
+ : added
July 29, 2010
+ [Lorenzo Monti] added Free Pascal / Lazarus 32 bit support
July 14, 2010
+ [Lorenzo Monti] updated wrapper for FreeImage 3.13.1
* [Lorenzo Monti] fixed declaration of FreeImageIO functions (FI_ReadProc, FI_WriteProc, FI_SeekProc, FI_TellProc)
! [Lorenzo Monti] renamed structure PluginStruct to Plugin, according to FreeImage.h
* [Lorenzo Monti] fixed declaration of JPEG_CMYK constant
* [Lorenzo Monti] fixed declaration of type FreeImage_OutputMessageFunction
* [Lorenzo Monti] fixed declaration of FreeImage_OutputMessageProc
+ [Lorenzo Monti] added wrapper for FreeImage_OutputMessageProc for older Delphi compilers (<6) not supporting varargs
* [Lorenzo Monti] fixed declaration of FreeImage_LookupX11Color and FreeImage_LookupSVGColor
! [Lorenzo Monti] changed declaration of FreeImage_GetPixelIndex, FreeImage_GetPixelColor, FreeImage_SetPixelIndex, FreeImage_SetPixelColor
! [Lorenzo Monti] changed declaration of FreeImage_GetInfo
! [Lorenzo Monti] changed declaration of FreeImage_GetICCProfile, FreeImage_CreateICCProfile, FreeImage_DestroyICCProfile
* [Lorenzo Monti] fixed declaration of FreeImage_SetComplexChannel
+ [Lorenzo Monti] added Delphi 2010 support
+ [Lorenzo Monti] added Version.inc to determine compiler version
! [Lorenzo Monti] moved all "external" definitions to implementation section
! [Lorenzo Monti] changed FreeBitmap.pas, FreeUtils.pas and TargaImage.pas to reflect changes in the FreeImage.pas unit
July 17, 2006
+ [Herv<72> Drolon] added FIF_FAXG3 and FIF_SGI definitions, added FreeImage_MakeThumbnail definition.
January 20, 2006
! [Anatoliy Pulyaevskiy] updated WinBitmap demo
* [Anatoliy Pulyaevskiy] fixed TFreeBitmap.ConvertToStandartType renamed to TFreeBitmap.ConvertToStandardType
* [Anatoliy Pulyaevskiy] fixed using of SetFreeImageMarker (only for HDR dib)
October 19, 2005
+ [Anatoliy Pulyaevskiy] updated wrapper for FreeImage 3.8.0
+ [Anatoliy Pulyaevskiy] added Delphi 5 support
+ [Anatoliy Pulyaevskiy] added TFreeBitmap.OnChanging event
! [Anatoliy Pulyaevskiy] changed declaration of TFreeBitmap.Assign method
+ [Anatoliy Pulyaevskiy] added TFreeBitmap.CanSave function
! [Anatoliy Pulyaevskiy] property TFreeBitmap.Dib now have read/write access
+ [Anatoliy Pulyaevskiy] added TFreeTag class incapsulating FreeImage FITAG type
August 5, 2005
* [kaare-nysite] fixed the prototype of FreeImage_ConvertFromRawBits
June 21, 2005
* [Maarten Veerman] fixed the prototype of FreeImage_OpenMultiBitmap
February 17, 2005 - Version 1.3.0
+ [Anatoliy Pulyaevskiy] updated the wrapper for FreeImage 3.6.0
! [Anatoliy Pulyaevskiy] FreeImage.pas unit has been reworked
January 14, 2005 - Version 1.2.1
+ [Anatoliy Pulyaevskiy] updated the wrapper for FreeImage 3.5.3
+ [Anatoliy Pulyaevskiy] added TFreeBitmap.SetHorizontalResolution and TFreeBitmap.SetVerticalResolution
+ [Anatoliy Pulyaevskiy] added TFreeBitmap.MakeThumbnail procedure ( an adapted version of function given by Enzo Costantini)
+ [Enzo Costantini] added FIU_GetFIFType utility function
+ [Enzo Costantini] added TFreeWinBitmap.CopyToBitmapH function
* [Anatoliy Pulyaevskiy] fixed TFreeBitmap.Rotate (fix from FreeImage CVS)
+ [Anatoliy Pulyaevskiy] added TFreeBitmap.ConvertToStandartType
December 20, 2004 - Version 1.2.0
+ [Anatoliy Pulyaevskiy] added MultiBitmap Demo
* [Anatoliy Pulyaevskiy] fixed TFreeMultiBitmap.LockPage due to error with Locking/Unlocking pages
+ [Anatoliy Pulyaevskiy] added TFreeBitmap.ConvertTo4Bits
* [Anatoliy Pulyaevskiy] TFreeBitmap.ConvertToGrayScale fixed converting bitmaps with FIC_MINISWHITE color type
* [Anatoliy Pulyaevskiy] fixed TFreeWinBitmap.DrawEx FDisplayDib deleting
+ [Anatoliy Pulyaevskiy] updated the wrapper for FreeImage 3.5.2
November 12, 2004 - Version 1.1.0
+ [Anatoliy Pulyaevskiy] added TFreeBitmap.Assign(Source: PFIBITMAP)
- [Anatoliy Pulyaevskiy] removed TFreeBitmap.SetDib
! [Anatoliy Pulyaevskiy] TFreeBitmap.Dib property now read-only
* [Anatoliy Pulyaevskiy] TFreeMultiBitmap.UnlockPage implemented
* [Anatoliy Pulyaevskiy] fixed TFreeBitmap.Rescale not applies changes
November 8, 2004 - Version 1.0.0
+ [Anatoliy Pulyaevskiy] added Delphi version of FreeImagePlus
+ [Anatoliy Pulyaevskiy] updated the wrapper for FreeImage 3.5.0
January 7, 2004
+ [Tommy] added TargaImage unit
October 28, 2003
+ [Peter Bystr<74>m] updated the wrapper for FreeImage 3.0.2
August 9, 2003
+ [Simon Beavis] added a wrapper for FreeImage 2.6.1

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del /S *.~*
del /S *.dcu
del /S *.dsk
del /S *.cfg
del /S *.dof
del /S *.obj
del /S *.hpp
del /S *.ddp
del /S *.mps
del /S *.mpt
del /S *.bak
del /S *.exe
del /S *.stat

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program ImagePreview;
uses
Forms,
MainFrm in 'MainFrm.pas' {MainForm};
{$R *.res}
begin
Application.Initialize;
Application.CreateForm(TMainForm, MainForm);
Application.Run;
end.

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object MainForm: TMainForm
Left = 304
Top = 165
Width = 467
Height = 405
Caption = 'Image Preview'
Color = clWhite
Font.Charset = DEFAULT_CHARSET
Font.Color = clWindowText
Font.Height = -11
Font.Name = 'MS Sans Serif'
Font.Style = []
KeyPreview = True
OldCreateOrder = False
Position = poDesktopCenter
OnCreate = FormCreate
OnDestroy = FormDestroy
OnKeyUp = FormKeyUp
OnMouseWheel = ScrollBoxMouseWheel
OnShow = FormShow
PixelsPerInch = 96
TextHeight = 13
object ImgView32: TImgView32
Left = 0
Top = 0
Width = 459
Height = 371
Align = alClient
ParentShowHint = False
PopupMenu = PopupMenu
Scale = 1
ScrollBars.Color = clScrollBar
ScrollBars.ShowHandleGrip = True
ScrollBars.Style = rbsDefault
ShowHint = True
SizeGrip = sgAuto
TabOrder = 0
OnScroll = ImgView32Scroll
object AlphaView: TImgView32
Left = 8
Top = 8
Width = 161
Height = 145
Scale = 1
ScrollBars.Color = clScrollBar
ScrollBars.ShowHandleGrip = True
ScrollBars.Style = rbsDefault
SizeGrip = sgAuto
TabOrder = 2
Visible = False
end
end
object PopupMenu: TPopupMenu
Left = 304
Top = 28
object ZoomInItem: TMenuItem
Caption = 'Zoom In'
OnClick = ZoomInItemClick
end
object ZoomOutItem: TMenuItem
Caption = 'Zoom Out'
OnClick = ZoomOutItemClick
end
object ActualSizeItem: TMenuItem
Caption = 'Actual Size'
OnClick = ActualSizeItemClick
end
object N1: TMenuItem
Caption = '-'
end
object RotateClockwiseItem: TMenuItem
Caption = 'Rotate Clockwise'
OnClick = RotateClockwiseItemClick
end
object RotateAntiClockwiseItem: TMenuItem
Caption = 'Rotate Anti-Clockwise'
OnClick = RotateAntiClockwiseItemClick
end
object N4: TMenuItem
Caption = '-'
end
object FlipHorizontalItem: TMenuItem
Caption = 'Flip Horizontal'
OnClick = FlipHorizontalItemClick
end
object FilpVerticalItem: TMenuItem
Caption = 'Filp Vertical'
OnClick = FilpVerticalItemClick
end
object N3: TMenuItem
Caption = '-'
end
object ShowAlphaItem: TMenuItem
Caption = 'Show Just Alpha Channel'
OnClick = ShowAlphaItemClick
end
object ShowWithAlphaItem: TMenuItem
Caption = 'Show With Alpha Channel'
OnClick = ShowWithAlphaItemClick
end
object N2: TMenuItem
Caption = '-'
end
object OpenImageItem: TMenuItem
Caption = 'Open New Image'
OnClick = OpenImageItemClick
end
end
object FilterTimer: TTimer
Interval = 500
OnTimer = FilterTimerTimer
Left = 308
Top = 84
end
object OpenDialog: TOpenDialog
Filter =
'All image files|*.bmp;*.cut;*.ico;*.iff;*.lbm;*.jng;*.jpg;*.jpeg' +
';*.koa;*.mng;*.pbm;*.pcd;*.pcx;*.pgm;*.png;*.ppm;*.psd;*.ras;*.t' +
'ga;*.tif;*.tiff;.wbmp;*.xbm;*.xpm)|Windows or OS/2 Bitmap File (' +
'*.BMP)|*.BMP|Dr. Halo (*.CUT)|*.CUT|Windows Icon (*.ICO)|*.ICO|A' +
'miga IFF (*.IFF, *.LBM)|*.IFF;*.LBM|JPEG Network Graphics (*.JNG' +
')|*.JNG|Independent JPEG Group (*.JPG)|*.JPG|Commodore 64 Koala ' +
'(*.KOA)|*.KOA|Multiple Network Graphics (*.MNG)|*.MNG|Portable B' +
'itmap (*.PBM)|*.PBM|Kodak PhotoCD (*.PCD)|*.PCD|PCX bitmap forma' +
't (*.PCX)|*.PCX|Portable Graymap (*.PGM)|*.PGM|Portable Network ' +
'Graphics (*.PNG)|*.PNG|Portable Pixelmap (*.PPM)|*.PPM|Photoshop' +
' (*.PSD)|*.PSD|Sun Rasterfile (*.RAS)|*.RAS|Targa files (*.TGA)|' +
'*.TGA|Tagged Image File Format (*.TIF)|*.TIF;*.TIFF|Wireless Bit' +
'map (*.WBMP)|*.WBMP|X11 Bitmap Format (*.XBM)|*.XBM|X11 Pixmap F' +
'ormat (*.XPM)|*.XPM'
Title = 'Open Image File'
Left = 328
Top = 228
end
end

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unit MainFrm;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, Menus, ExtCtrls, Math, GR32, GR32_Image, GR32_Transforms,
ExtDlgs;
type
TMainForm = class(TForm)
PopupMenu: TPopupMenu;
ZoomInItem: TMenuItem;
ZoomOutItem: TMenuItem;
ActualSizeItem: TMenuItem;
ImgView32: TImgView32;
N1: TMenuItem;
AlphaView: TImgView32;
ShowAlphaItem: TMenuItem;
RotateClockwiseItem: TMenuItem;
RotateAntiClockwiseItem: TMenuItem;
N3: TMenuItem;
ShowWithAlphaItem: TMenuItem;
N4: TMenuItem;
FlipHorizontalItem: TMenuItem;
FilpVerticalItem: TMenuItem;
FilterTimer: TTimer;
OpenImageItem: TMenuItem;
N2: TMenuItem;
OpenDialog: TOpenDialog;
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure FormShow(Sender: TObject);
procedure ZoomInItemClick(Sender: TObject);
procedure ZoomOutItemClick(Sender: TObject);
procedure ActualSizeItemClick(Sender: TObject);
procedure ScrollBoxMouseWheel(Sender: TObject; Shift: TShiftState;
WheelDelta: Integer; MousePos: TPoint; var Handled: Boolean);
procedure FormKeyUp(Sender: TObject; var Key: Word;
Shift: TShiftState);
procedure ShowAlphaItemClick(Sender: TObject);
procedure RotateClockwiseItemClick(Sender: TObject);
procedure RotateAntiClockwiseItemClick(Sender: TObject);
procedure ShowWithAlphaItemClick(Sender: TObject);
procedure FlipHorizontalItemClick(Sender: TObject);
procedure FilpVerticalItemClick(Sender: TObject);
procedure FilterTimerTimer(Sender: TObject);
procedure ImgView32Scroll(Sender: TObject);
procedure OpenImageItemClick(Sender: TObject);
private
{ Private declarations }
OrigWidth : integer;
OrigHeight : integer;
BPP : longword;
procedure LoadImage( Name : string);
procedure RecalcWindowSize;
public
{ Public declarations }
end;
var
MainForm: TMainForm;
implementation
{$R *.dfm}
uses FreeImage;
// -----------------------------------------------------------------------------
// -----------------------------------------------------------------------------
procedure TMainForm.FormCreate(Sender: TObject);
begin
AlphaView.Visible := False;
AlphaView.Align := alClient;
end;
// -----------------------------------------------------------------------------
procedure TMainForm.FormDestroy(Sender: TObject);
begin
// ...
end;
// -----------------------------------------------------------------------------
procedure TMainForm.FormShow(Sender: TObject);
begin
ImgView32.Bitmap.StretchFilter := sfSPline;
if ParamCount = 1 then
LoadImage(ParamStr(1));
end;
// -----------------------------------------------------------------------------
procedure TMainForm.LoadImage( Name : string);
var
dib : PFIBITMAP;
PBH : PBITMAPINFOHEADER;
PBI : PBITMAPINFO;
t : FREE_IMAGE_FORMAT;
Ext : string;
BM : TBitmap;
x, y : integer;
BP : PLONGWORD;
DC : HDC;
begin
try
t := FreeImage_GetFileType(PChar(Name), 16);
if t = FIF_UNKNOWN then
begin
// Check for types not supported by GetFileType
Ext := UpperCase(ExtractFileExt(Name));
if (Ext = '.TGA') or(Ext = '.TARGA') then
t := FIF_TARGA
else if Ext = '.MNG' then
t := FIF_MNG
else if Ext = '.PCD' then
t := FIF_PCD
else if Ext = '.WBMP' then
t := FIF_WBMP
else if Ext = '.CUT' then
t := FIF_CUT
else
raise Exception.Create('The file "' + Name + '" cannot be displayed because SFM does not recognise the file type.');
end;
dib := FreeImage_Load(t, PChar(name), 0);
if Dib = nil then
Close;
PBH := FreeImage_GetInfoHeader(dib);
PBI := FreeImage_GetInfo(dib^);
BPP := FreeImage_GetBPP(dib);
ShowWithAlphaItem.Enabled := BPP = 32;
ShowAlphaItem.Enabled := BPP = 32;
if BPP = 32 then
begin
ImgView32.Bitmap.SetSize(FreeImage_GetWidth(dib), FreeImage_GetHeight(dib));
BP := PLONGWORD(FreeImage_GetBits(dib));
for y := ImgView32.Bitmap.Height - 1 downto 0 do
for x := 0 to ImgView32.Bitmap.Width - 1 do
begin
ImgView32.Bitmap.Pixel[x, y] := BP^;
inc(BP);
end;
end
else
begin
BM := TBitmap.Create;
BM.Assign(nil);
DC := GetDC(Handle);
BM.handle := CreateDIBitmap(DC,
PBH^,
CBM_INIT,
PChar(FreeImage_GetBits(dib)),
PBI^,
DIB_RGB_COLORS);
ImgView32.Bitmap.Assign(BM);
AlphaView.Bitmap.Assign(BM);
BM.Free;
ReleaseDC(Handle, DC);
end;
FreeImage_Unload(dib);
OrigWidth := ImgView32.Bitmap.Width;
OrigHeight := ImgView32.Bitmap.Height;
Caption := ExtractFileName( Name ) + ' (' + IntToStr(OrigWidth) +
' x ' + IntToStr(OrigHeight) + ')';
if BPP = 32 then
Caption := Caption + ' + Alpha';
AlphaView.Bitmap.SetSize(OrigWidth, OrigWidth);
ImgView32.Hint := 'Name: ' + Name + #13 +
'Width: ' + IntToStr(OrigWidth) + #13 +
'Height: ' + IntToStr(OrigHeight) + #13 +
'BPP: ' + IntToStr(BPP);
RecalcWindowSize;
Show;
except
on e:exception do
begin
Application.BringToFront;
MessageDlg(e.message, mtInformation, [mbOK], 0);
Close;
end;
end;
end;
// -----------------------------------------------------------------------------
procedure TMainForm.ZoomInItemClick(Sender: TObject);
begin
FilterTimer.Enabled := False;
if ImgView32.Bitmap.StretchFilter <> sfNearest then
ImgView32.Bitmap.StretchFilter := sfNearest;
FilterTimer.Enabled := True;
ImgView32.Scale := ImgView32.Scale * 2.0;
RecalcWindowSize;
end;
// -----------------------------------------------------------------------------
procedure TMainForm.ZoomOutItemClick(Sender: TObject);
begin
FilterTimer.Enabled := False;
if ImgView32.Bitmap.StretchFilter <> sfNearest then
ImgView32.Bitmap.StretchFilter := sfNearest;
FilterTimer.Enabled := True;
ImgView32.Scale := ImgView32.Scale / 2.0;
RecalcWindowSize;
end;
// -----------------------------------------------------------------------------
procedure TMainForm.ActualSizeItemClick(Sender: TObject);
begin
FilterTimer.Enabled := False;
if ImgView32.Bitmap.StretchFilter <> sfNearest then
ImgView32.Bitmap.StretchFilter := sfNearest;
FilterTimer.Enabled := True;
ImgView32.Scale := 1.0;
RecalcWindowSize;
end;
// -----------------------------------------------------------------------------
procedure TMainForm.RecalcWindowSize;
var
Rect : TRect;
CW, CH : integer;
WSH, WSW : integer;
TitleH : integer;
BorderY : integer;
BorderX : integer;
begin
CW := ImgView32.Bitmap.Width + GetSystemMetrics(SM_CXVSCROLL);
CH := ImgView32.Bitmap.Height + GetSystemMetrics(SM_CYVSCROLL);
SystemParametersInfo( SPI_GETWORKAREA, 0, @Rect, 0);
WSH := Rect.Bottom - Rect.Top;
WSW := Rect.Right - Rect.Left;
TitleH := GetSystemMetrics(SM_CYCAPTION);
BorderY := GetSystemMetrics(SM_CYSIZEFRAME) * 2;
BorderX := GetSystemMetrics(SM_CXSIZEFRAME) * 2;
if (Top + CH + TitleH + BorderY > WSH) or (CH + TitleH + BorderY > WSH) then
begin
Top := Rect.Bottom - CH - BorderY;
if Top < 0 then
begin
Top := 0;
CH := WSH - TitleH - BorderY;
CW := CW + GetSystemMetrics(SM_CXVSCROLL);
if CW + BorderX > WSW then
CH := CH - GetSystemMetrics(SM_CYVSCROLL);
end;
end;
if (Left + CW + BorderX > WSW) or (CW + BorderX > WSW) then
begin
Left := Rect.Right - CW - BorderX;
if Left < 0 then
begin
Left := 0;
CW := WSW - BorderX;
CH := CH + GetSystemMetrics(SM_CYVSCROLL);
if CH + TitleH + BorderY > WSH then
CW := CW + GetSystemMetrics(SM_CXVSCROLL);
end
end;
ClientWidth := CW;
ClientHeight := CH;
end;
// -----------------------------------------------------------------------------
procedure TMainForm.ScrollBoxMouseWheel(Sender: TObject;
Shift: TShiftState; WheelDelta: Integer; MousePos: TPoint;
var Handled: Boolean);
begin
FilterTimer.Enabled := False;
if ImgView32.Bitmap.StretchFilter <> sfNearest then
ImgView32.Bitmap.StretchFilter := sfNearest;
FilterTimer.Enabled := True;
if WheelDelta < 0 then
ImgView32.Scroll(0, 20)
else
ImgView32.Scroll(0, -20);
Handled := True;
end;
// -----------------------------------------------------------------------------
procedure TMainForm.FormKeyUp(Sender: TObject; var Key: Word;
Shift: TShiftState);
var
Amount : integer;
begin
FilterTimer.Enabled := False;
if ImgView32.Bitmap.StretchFilter <> sfNearest then
ImgView32.Bitmap.StretchFilter := sfNearest;
FilterTimer.Enabled := True;
if ssShift in Shift then
Amount := 20 * 2
else
Amount := 20;
case Key of
VK_ESCAPE:
Close;
VK_UP:
ImgView32.Scroll(0, -Amount);
VK_DOWN:
ImgView32.Scroll(0, Amount);
VK_LEFT:
ImgView32.Scroll(-Amount, 0);
VK_RIGHT:
ImgView32.Scroll(Amount, 0);
VK_HOME:
ImgView32.ScrollToCenter(0, 0);
VK_END:
ImgView32.ScrollToCenter(ImgView32.Bitmap.Width, ImgView32.Bitmap.Height);
VK_NEXT:
ImgView32.Scroll(0, (Trunc(ImgView32.Bitmap.Height div 4)));
VK_PRIOR:
ImgView32.Scroll(0, -(Trunc(ImgView32.Bitmap.Height div 4)));
end;
end;
// -----------------------------------------------------------------------------
procedure TMainForm.ShowAlphaItemClick(Sender: TObject);
var
x, y : integer;
Col : TColor32;
Alpha : TColor;
begin
if ShowAlphaItem.Checked then
begin
AlphaView.Visible := False;
AlphaView.Bitmap.Delete;
end
else
begin
AlphaView.Bitmap.Width := ImgView32.Bitmap.Width;
AlphaView.Bitmap.Height := ImgView32.Bitmap.Height;
for x := 0 to AlphaView.Bitmap.Width - 1 do
for y := 0 to AlphaView.Bitmap.Height - 1 do
begin
Col := ImgView32.Bitmap.Pixel[x, y];
Alpha := Col shr 24;
AlphaView.Bitmap.Pixel[x, y] := Alpha + (Alpha shl 8) + (Alpha shl 16);
end;
AlphaView.Visible := True;
end;
ShowAlphaItem.Checked := not ShowAlphaItem.Checked;
end;
// -----------------------------------------------------------------------------
procedure TMainForm.RotateClockwiseItemClick(Sender: TObject);
var
x : integer;
y : integer;
DestX : integer;
DestY : integer;
C : TColor32;
begin
AlphaView.Bitmap.Assign(ImgView32.Bitmap);
ImgView32.BeginUpdate;
ImgView32.Bitmap.Width := AlphaView.Bitmap.Height;
ImgView32.Bitmap.Height := AlphaView.Bitmap.Width;
for x := 0 to AlphaView.Bitmap.Width - 1 do
for y := 0 to AlphaView.Bitmap.Height - 1 do
begin
C := AlphaView.Bitmap.Pixel[x, y];
DestX := (ImgView32.Bitmap.Width - 1) - Y;
DestY := X;
ImgView32.Bitmap.Pixels[DestX, DestY] := C;
end;
ImgView32.EndUpdate;
ImgView32.Refresh;
end;
// -----------------------------------------------------------------------------
procedure TMainForm.RotateAntiClockwiseItemClick(Sender: TObject);
var
x : integer;
y : integer;
DestX : integer;
DestY : integer;
C : TColor32;
begin
AlphaView.Bitmap.Assign(ImgView32.Bitmap);
ImgView32.BeginUpdate;
ImgView32.Bitmap.Width := AlphaView.Bitmap.Height;
ImgView32.Bitmap.Height := AlphaView.Bitmap.Width;
for x := 0 to AlphaView.Bitmap.Width - 1 do
for y := 0 to AlphaView.Bitmap.Height - 1 do
begin
C := AlphaView.Bitmap.Pixel[x, y];
DestX := Y;
DestY := (ImgView32.Bitmap.Height - 1) -X;
ImgView32.Bitmap.Pixels[DestX, DestY] := C;
end;
ImgView32.EndUpdate;
ImgView32.Refresh;
end;
// -----------------------------------------------------------------------------
procedure TMainForm.ShowWithAlphaItemClick(Sender: TObject);
begin
if ShowWithAlphaItem.Checked then
ImgView32.Bitmap.DrawMode := dmOpaque
else
ImgView32.Bitmap.DrawMode := dmBlend;
ShowWithAlphaItem.Checked := not ShowWithAlphaItem.Checked;
end;
// -----------------------------------------------------------------------------
procedure TMainForm.FlipHorizontalItemClick(Sender: TObject);
var
x : integer;
y : integer;
DestX : integer;
DestY : integer;
C : TColor32;
begin
AlphaView.Bitmap.Assign(ImgView32.Bitmap);
ImgView32.BeginUpdate;
ImgView32.Bitmap.Width := AlphaView.Bitmap.Width;
ImgView32.Bitmap.Height := AlphaView.Bitmap.Height;
for x := 0 to AlphaView.Bitmap.Width - 1 do
for y := 0 to AlphaView.Bitmap.Height - 1 do
begin
C := AlphaView.Bitmap.Pixel[x, y];
DestX := (ImgView32.Bitmap.Width - 1) -X;
DestY := Y;
ImgView32.Bitmap.Pixels[DestX, DestY] := C;
end;
ImgView32.EndUpdate;
ImgView32.Refresh;
end;
// -----------------------------------------------------------------------------
procedure TMainForm.FilpVerticalItemClick(Sender: TObject);
var
x : integer;
y : integer;
DestX : integer;
DestY : integer;
C : TColor32;
begin
AlphaView.Bitmap.Assign(ImgView32.Bitmap);
ImgView32.BeginUpdate;
ImgView32.Bitmap.Width := AlphaView.Bitmap.Width;
ImgView32.Bitmap.Height := AlphaView.Bitmap.Height;
for x := 0 to AlphaView.Bitmap.Width - 1 do
for y := 0 to AlphaView.Bitmap.Height - 1 do
begin
C := AlphaView.Bitmap.Pixel[x, y];
DestX := X;
DestY := (ImgView32.Bitmap.Height - 1) - Y;
ImgView32.Bitmap.Pixels[DestX, DestY] := C;
end;
ImgView32.EndUpdate;
ImgView32.Refresh;
end;
// -----------------------------------------------------------------------------
procedure TMainForm.FilterTimerTimer(Sender: TObject);
begin
FilterTimer.Enabled := False;
ImgView32.Bitmap.StretchFilter := sfSPline;
end;
// -----------------------------------------------------------------------------
procedure TMainForm.ImgView32Scroll(Sender: TObject);
begin
FilterTimer.Enabled := False;
if ImgView32.Bitmap.StretchFilter <> sfNearest then
ImgView32.Bitmap.StretchFilter := sfNearest;
FilterTimer.Enabled := True;
end;
// -----------------------------------------------------------------------------
procedure TMainForm.OpenImageItemClick(Sender: TObject);
begin
if OpenDialog.Execute then
begin
try
Screen.Cursor := crHourGlass;
LoadImage(OpenDialog.FileName);
finally
Screen.Cursor := crDefault;
end;
end;
end;
end.

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This is a simple image viewing application that uses the FreeImage library to display images in many different formats.
The app displays the image whose name is passed in as a command line argument.
To compile the app you will also need the Graphics32 library available from www.g32.org. It has been tested with version 1.5.1 of Graphics32.
SJB.

Binary file not shown.

After

Width:  |  Height:  |  Size: 63 KiB

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program MultiBitmap;
uses
Forms,
mbMainForm in 'mbMainForm.pas' {MainForm};
{$R *.res}
begin
Application.Initialize;
Application.CreateForm(TMainForm, MainForm);
Application.Run;
end.

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[Stats]
EditorSecs=82
DesignerSecs=5
InspectorSecs=1
CompileSecs=850
OtherSecs=5
StartTime=20.12.2004 11:40:22
RealKeys=0
EffectiveKeys=0
DebugSecs=19

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object MainForm: TMainForm
Left = 203
Top = 192
Width = 696
Height = 480
Caption = 'MultiBitmap Demo'
Color = clBtnFace
Font.Charset = DEFAULT_CHARSET
Font.Color = clWindowText
Font.Height = -11
Font.Name = 'MS Shell Dlg 2'
Font.Style = []
OldCreateOrder = False
OnPaint = FormPaint
OnResize = FormResize
PixelsPerInch = 96
TextHeight = 13
object ToolBar: TToolBar
Left = 0
Top = 0
Width = 688
Height = 25
AutoSize = True
ButtonHeight = 21
ButtonWidth = 33
Caption = 'ToolBar'
EdgeBorders = [ebLeft, ebTop, ebRight, ebBottom]
Flat = True
Indent = 3
ShowCaptions = True
TabOrder = 0
object tbLoad: TToolButton
Left = 3
Top = 0
Caption = 'Load'
ImageIndex = 0
OnClick = tbLoadClick
end
object ToolButton1: TToolButton
Left = 36
Top = 0
Width = 8
Caption = 'ToolButton1'
ImageIndex = 1
Style = tbsSeparator
end
object tbClose: TToolButton
Left = 44
Top = 0
Caption = 'Close'
ImageIndex = 1
OnClick = tbCloseClick
end
object ToolButton2: TToolButton
Left = 77
Top = 0
Width = 8
Caption = 'ToolButton2'
ImageIndex = 2
Style = tbsSeparator
end
object Label1: TLabel
Left = 85
Top = 0
Width = 36
Height = 21
Caption = 'Pages: '
Layout = tlCenter
end
object cbPages: TComboBox
Left = 121
Top = 0
Width = 60
Height = 21
Style = csDropDownList
DropDownCount = 15
ItemHeight = 13
TabOrder = 0
OnChange = cbPagesChange
end
end
object OD: TOpenDialog
Filter = 'TIFF multibitmap (*.tiff, *.tif)|*.tiff; *.tif|ICO|*.ico'
Options = [ofHideReadOnly, ofPathMustExist, ofFileMustExist, ofEnableSizing]
Title = 'Open multibitmap..'
Left = 64
Top = 96
end
end

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@@ -0,0 +1,150 @@
unit mbMainForm;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, ComCtrls, ToolWin, StdCtrls, FreeBitmap;
type
TMainForm = class(TForm)
ToolBar: TToolBar;
tbLoad: TToolButton;
ToolButton1: TToolButton;
tbClose: TToolButton;
ToolButton2: TToolButton;
cbPages: TComboBox;
Label1: TLabel;
OD: TOpenDialog;
procedure tbLoadClick(Sender: TObject);
procedure FormPaint(Sender: TObject);
procedure tbCloseClick(Sender: TObject);
procedure cbPagesChange(Sender: TObject);
procedure FormResize(Sender: TObject);
private
FMultiBitmap: TFreeMultiBitmap;
FPage: TFreeWinBitmap;
procedure PageBitmapChangeHandler(Sender: TObject);
procedure WMEraseBkgnd(var Message: TWMEraseBkgnd); message WM_ERASEBKGND;
public
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
procedure OpenMultiBitmap(const FileName: string);
procedure CloseMultiBitmap;
procedure OpenPage(Number: Integer);
end;
var
MainForm: TMainForm;
implementation
{$R *.dfm}
{ TMainForm }
procedure TMainForm.CloseMultiBitmap;
begin
if FPage.IsValid then
FMultiBitmap.UnlockPage(Fpage, False);
FMultiBitmap.Close;
cbPages.Clear;
end;
constructor TMainForm.Create(AOwner: TComponent);
begin
inherited;
FMultiBitmap := TFreeMultiBitmap.Create;
FPage := TFreeWinBitmap.Create;
FPage.OnChange := PageBitmapChangeHandler;
end;
destructor TMainForm.Destroy;
begin
if FMultiBitmap.IsValid then
CloseMultiBitmap;
FMultiBitmap.Free;
inherited;
end;
procedure TMainForm.OpenMultiBitmap(const FileName: string);
var
I, Cnt: Integer;
begin
if FMultiBitmap.IsValid then CloseMultiBitmap;
FMultiBitmap.Open(FileName, False, True);
Cnt := FMultiBitmap.GetPageCount;
cbPages.OnChange := nil;
cbPages.Clear;
for I := 0 to Cnt - 1 do
cbPages.Items.Add(IntToStr(I));
cbPages.OnChange := cbPagesChange;
end;
procedure TMainForm.OpenPage(Number: Integer);
begin
if not FMultiBitmap.IsValid then Exit;
if FPage.IsValid then
FMultiBitmap.UnlockPage(FPage, False);
FMultiBitmap.LockPage(Number, FPage);
end;
procedure TMainForm.PageBitmapChangeHandler(Sender: TObject);
begin
Invalidate;
end;
procedure TMainForm.tbLoadClick(Sender: TObject);
begin
if OD.Execute then
begin
try
OpenMultiBitmap(OD.FileName);
except
raise Exception.CreateFmt('Can not load file %s', [OD.FileName]);
end;
end;
end;
procedure TMainForm.WMEraseBkgnd(var Message: TWMEraseBkgnd);
begin
Message.Result := 1;
end;
procedure TMainForm.FormPaint(Sender: TObject);
begin
if not FPage.IsValid then
begin
Canvas.Brush.Color := clBtnFace;
Canvas.FillRect(ClientRect);
end
else
FPage.Draw(Canvas.Handle, ClientRect);
end;
procedure TMainForm.tbCloseClick(Sender: TObject);
begin
if FMultiBitmap.IsValid then
CloseMultiBitmap;
end;
procedure TMainForm.cbPagesChange(Sender: TObject);
var
Page: Integer;
begin
Page := StrToInt(cbPages.Text);
OpenPage(Page);
end;
procedure TMainForm.FormResize(Sender: TObject);
begin
Invalidate;
end;
end.

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@@ -0,0 +1,22 @@
TargaImage.pas is a TGraphic descendant for Delphi. Installing it
will allow Delphi TImage and TDBImage components to read Targa files
just like BMP & WMF files with no coding on your part.
It also adds the TGA file type to the Delphi Open/Save Picture dialog
boxes.
To install this unit, place it in your one of your library folders
and make it available to all your Delphi projects by using
Component>Install Component from the Delphi menus.
NOTE: any Delphi applications using this *must* have FreeImage.dll
installed in your application's folder, or somewhere in the path.
-----------------------
Tommy
Edinburgh, Scotland
LeTene@battlefieldeurope.org

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@@ -0,0 +1,212 @@
unit TargaImage;
// ==========================================================
//
// This file is part of FreeImage 3
//
// COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTY
// OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES
// THAT THE COVERED CODE IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE
// OR NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED
// CODE IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, YOU (NOT
// THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY
// SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL
// PART OF THIS LICENSE. NO USE OF ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER
// THIS DISCLAIMER.
//
// Use at your own risk!
//
// ==========================================================
interface
uses
Windows,
Classes,
FreeImage,
Graphics,
Types;
type
TTargaImage = class(TGraphic)
private
fImage: PFIBITMAP;
fWidth: Integer;
fHeight: Integer;
protected
procedure Draw(ACanvas: TCanvas; const ARect: TRect); override;
function GetEmpty: Boolean; override;
function GetHeight: Integer; override;
function GetWidth: Integer; override;
procedure SetHeight(Value: Integer); override;
procedure SetWidth(Value: Integer); override;
public
constructor Create; override;
destructor Destroy; override;
procedure Assign(Source: TPersistent); override;
procedure LoadFromClipboardFormat(AFormat: Word; AData: THandle; APalette: HPALETTE); override;
procedure LoadFromStream(Stream: TStream); override;
procedure SaveToClipboardFormat(var AFormat: Word; var AData: THandle; var APalette: HPALETTE); override;
procedure SaveToStream(Stream: TStream); override;
end;
procedure Register;
implementation
{ Design-time registration }
procedure Register;
begin
TPicture.RegisterFileFormat('tga', 'TARGA Files', TTargaImage);
end;
{ IO functions }
function FI_ReadProc(buffer : pointer; size : Cardinal; count : Cardinal; handle : fi_handle) : UInt; stdcall;
var
stream: TStream;
bytesToRead: Cardinal;
begin
stream := TStream(handle);
bytesToRead := size*count;
Result := stream.Read(buffer^, bytesToRead);
end;
function FI_WriteProc(buffer : pointer; size, count : Cardinal; handle : fi_handle) : UInt; stdcall;
var
stream: TStream;
bytesToWrite: Cardinal;
begin
stream := TStream(handle);
bytesToWrite := size*count;
Result := stream.Write(buffer^, bytesToWrite);
end;
function FI_SeekProc(handle : fi_handle; offset : longint; origin : integer) : Integer; stdcall;
begin
TStream(handle).Seek(offset, origin);
Result := 0;
end;
function FI_TellProc(handle : fi_handle) : LongInt; stdcall;
begin
Result := TStream(handle).Position;
end;
{ TTargaImage }
constructor TTargaImage.Create;
begin
fImage := nil;
fWidth := 0;
fHeight := 0;
inherited;
end;
destructor TTargaImage.Destroy;
begin
if Assigned(fImage) then
FreeImage_Unload(fImage);
inherited;
end;
procedure TTargaImage.Assign(Source: TPersistent);
begin
if Source is TTargaImage then begin
fImage := FreeImage_Clone(TTargaImage(Source).fImage);
fWidth := FreeImage_GetWidth(fImage);
fHeight := FreeImage_GetHeight(fImage);
Changed(Self);
end else
inherited;
end;
procedure TTargaImage.Draw(ACanvas: TCanvas; const ARect: TRect);
var
pbi: PBitmapInfo;
begin
if Assigned(fImage) then begin
pbi := FreeImage_GetInfo(fImage);
SetStretchBltMode(ACanvas.Handle, COLORONCOLOR);
StretchDIBits(ACanvas.Handle, ARect.left, ARect.top,
ARect.right-ARect.left, ARect.bottom-ARect.top,
0, 0, fWidth, fHeight,
FreeImage_GetBits(fImage), pbi^, DIB_RGB_COLORS, SRCCOPY);
end;
end;
function TTargaImage.GetEmpty: Boolean;
begin
Result := Assigned(fImage);
end;
function TTargaImage.GetHeight: Integer;
begin
Result := fHeight;
end;
function TTargaImage.GetWidth: Integer;
begin
Result := fWidth;
end;
procedure TTargaImage.LoadFromClipboardFormat(AFormat: Word; AData: THandle; APalette: HPALETTE);
begin
if Assigned(fImage) then begin
end;
end;
procedure TTargaImage.LoadFromStream(Stream: TStream);
var
io: FreeImageIO;
begin
with io do begin
read_proc := FI_ReadProc;
write_proc := FI_WriteProc;
seek_proc := FI_SeekProc;
tell_proc := FI_TellProc;
end;
fImage := FreeImage_LoadFromHandle(FIF_TARGA, @io, Stream);
if Assigned(fImage) then begin
fWidth := FreeImage_GetWidth(fImage);
fHeight := FreeImage_GetHeight(fImage);
end;
end;
procedure TTargaImage.SaveToClipboardFormat(var AFormat: Word; var AData: THandle; var APalette: HPALETTE);
begin
end;
procedure TTargaImage.SaveToStream(Stream: TStream);
var
io: FreeImageIO;
begin
with io do begin
read_proc := FI_ReadProc;
write_proc := FI_WriteProc;
seek_proc := FI_SeekProc;
tell_proc := FI_TellProc;
end;
FreeImage_SaveToHandle(FIF_TARGA, fImage, @io, Stream);
end;
procedure TTargaImage.SetHeight(Value: Integer);
begin
if Assigned(fImage) then begin
fHeight := Value;
FreeImage_Rescale(fImage, fWidth, fHeight, FILTER_BICUBIC);
end;
end;
procedure TTargaImage.SetWidth(Value: Integer);
begin
if Assigned(fImage) then begin
fWidth := Value;
FreeImage_Rescale(fImage, fWidth, fHeight, FILTER_BICUBIC);
end;
end;
initialization
TPicture.RegisterFileFormat('tga', 'TARGA Files', TTargaImage);
end.

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program MainDemo;
uses
Forms,
MainForm in 'MainForm.pas' {fwbMainForm};
{$R *.res}
begin
Application.Initialize;
Application.CreateForm(TfwbMainForm, fwbMainForm);
Application.Run;
end.

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object fwbMainForm: TfwbMainForm
Left = 205
Top = 206
Width = 696
Height = 480
Caption = 'FreeWinBitmap - MainDemo'
Color = clCaptionText
Font.Charset = DEFAULT_CHARSET
Font.Color = clWindowText
Font.Height = -11
Font.Name = 'Tahoma'
Font.Style = []
Menu = MainMenu
OldCreateOrder = False
ShowHint = True
OnCreate = FormCreate
OnDestroy = FormDestroy
OnPaint = FormPaint
OnResize = FormResize
PixelsPerInch = 96
TextHeight = 13
object StatusBar: TStatusBar
Left = 0
Top = 411
Width = 688
Height = 23
Panels = <
item
Alignment = taCenter
Width = 120
end
item
Alignment = taCenter
Width = 80
end
item
Width = 50
end>
end
object tbTools: TToolBar
Left = 0
Top = 0
Width = 688
Height = 29
Caption = 'ToolBar'
Color = clBtnFace
EdgeBorders = [ebTop, ebBottom]
Flat = True
Images = ImageList1
ParentColor = False
TabOrder = 1
object ToolButton1: TToolButton
Left = 0
Top = 0
Width = 8
Caption = 'ToolButton1'
ImageIndex = 1
Style = tbsSeparator
end
object btnOpen: TToolButton
Left = 8
Top = 0
Hint = 'Open image file...'
Caption = 'Open...'
ImageIndex = 0
OnClick = mnuFileOpenClick
end
object ToolButton4: TToolButton
Left = 31
Top = 0
Width = 8
Caption = 'ToolButton4'
ImageIndex = 4
Style = tbsSeparator
end
object btnCopy: TToolButton
Left = 39
Top = 0
Hint = 'Copy to clipboard'
Caption = 'Copy'
ImageIndex = 1
OnClick = btnCopyClick
end
object btnPaste: TToolButton
Left = 62
Top = 0
Hint = 'Paste from from clipboard'
Caption = 'Paste'
ImageIndex = 2
OnClick = btnPasteClick
end
object ToolButton3: TToolButton
Left = 85
Top = 0
Width = 8
Caption = 'ToolButton3'
ImageIndex = 4
Style = tbsSeparator
end
object btnClear: TToolButton
Left = 93
Top = 0
Caption = 'Clear'
ImageIndex = 3
OnClick = btnClearClick
end
end
object MainMenu: TMainMenu
Left = 120
Top = 48
object mnuFile: TMenuItem
Caption = '&File'
object mnuFileOpen: TMenuItem
Caption = '&Open'
OnClick = mnuFileOpenClick
end
object mnuExit: TMenuItem
Caption = 'E&xit'
OnClick = mnuExitClick
end
end
object mnuImage: TMenuItem
Caption = 'Image'
object mnuImageFlip: TMenuItem
Caption = 'Flip'
object mnuFlipHorz: TMenuItem
Caption = 'Horizontal'
OnClick = mnuFlipHorzClick
end
object mnuFlipVert: TMenuItem
Caption = 'Vertical'
OnClick = mnuFlipHorzClick
end
end
object mnuConvert: TMenuItem
Caption = 'Convert'
object mnuTo4Bits: TMenuItem
Caption = 'To 4 Bits'
OnClick = mnuFlipHorzClick
end
object mnuTo8Bits: TMenuItem
Caption = 'To 8 Bits'
OnClick = mnuFlipHorzClick
end
object mnuTo16Bits555: TMenuItem
Caption = 'To 16 Bits (555)'
OnClick = mnuFlipHorzClick
end
object mnuTo16Bits565: TMenuItem
Caption = 'To 16 Bits (565)'
OnClick = mnuFlipHorzClick
end
object mnuTo24Bits: TMenuItem
Caption = 'To 24 Bits'
OnClick = mnuFlipHorzClick
end
object mnuTo32Bits: TMenuItem
Caption = 'To 32 Bits'
OnClick = mnuFlipHorzClick
end
object mnuDither: TMenuItem
Caption = 'Dither'
OnClick = mnuFlipHorzClick
end
object mnuQuantize: TMenuItem
Caption = 'Quantize'
OnClick = mnuFlipHorzClick
end
object mnuGrayScale: TMenuItem
Caption = 'GrayScale'
OnClick = mnuFlipHorzClick
end
end
object mnuRotate: TMenuItem
Caption = 'Rotate'
object mnuClockwise: TMenuItem
Caption = 'Clockwise'
OnClick = mnuFlipHorzClick
end
object mnuAntiClockwise: TMenuItem
Caption = 'AntiClockwise'
OnClick = mnuFlipHorzClick
end
end
object mnuInvert: TMenuItem
Caption = 'Invert'
OnClick = mnuFlipHorzClick
end
object mnuClear: TMenuItem
Caption = 'Clear'
OnClick = mnuFlipHorzClick
end
end
end
object OD: TOpenDialog
Title = 'Open file ...'
Left = 152
Top = 48
end
object ImageList1: TImageList
Left = 184
Top = 48
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end
end

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@@ -0,0 +1,227 @@
unit MainForm;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, Menus, FreeBitmap, ComCtrls, ImgList, ToolWin;
type
TfwbMainForm = class(TForm)
MainMenu: TMainMenu;
mnuFile: TMenuItem;
mnuFileOpen: TMenuItem;
mnuExit: TMenuItem;
OD: TOpenDialog;
StatusBar: TStatusBar;
mnuImage: TMenuItem;
mnuImageFlip: TMenuItem;
mnuFlipHorz: TMenuItem;
mnuFlipVert: TMenuItem;
mnuConvert: TMenuItem;
mnuTo8Bits: TMenuItem;
mnuTo16Bits555: TMenuItem;
mnuTo16Bits565: TMenuItem;
mnuTo24Bits: TMenuItem;
mnuTo32Bits: TMenuItem;
mnuDither: TMenuItem;
mnuQuantize: TMenuItem;
mnuGrayScale: TMenuItem;
mnuRotate: TMenuItem;
mnuClockwise: TMenuItem;
mnuAntiClockwise: TMenuItem;
mnuInvert: TMenuItem;
mnuClear: TMenuItem;
mnuTo4Bits: TMenuItem;
tbTools: TToolBar;
btnCopy: TToolButton;
ImageList1: TImageList;
ToolButton1: TToolButton;
btnPaste: TToolButton;
btnClear: TToolButton;
btnOpen: TToolButton;
ToolButton3: TToolButton;
ToolButton4: TToolButton;
procedure FormDestroy(Sender: TObject);
procedure FormPaint(Sender: TObject);
procedure FormCreate(Sender: TObject);
procedure mnuExitClick(Sender: TObject);
procedure mnuFileOpenClick(Sender: TObject);
procedure FormResize(Sender: TObject);
procedure mnuFlipHorzClick(Sender: TObject);
procedure btnCopyClick(Sender: TObject);
procedure btnClearClick(Sender: TObject);
procedure btnPasteClick(Sender: TObject);
private
FBitmap: TFreeWinBitmap;
procedure WMEraseBkgnd(var Message: TMessage); message WM_ERASEBKGND;
public
{ Public declarations }
end;
var
fwbMainForm: TfwbMainForm;
implementation
{$R *.dfm}
uses
FreeUtils, FreeImage, Math;
procedure TfwbMainForm.FormDestroy(Sender: TObject);
begin
if Assigned(FBitmap) then
FBitmap.Free;
end;
procedure TfwbMainForm.FormPaint(Sender: TObject);
var
dx, dy, w, h: Integer;
r1, r2: Double;
R: TRect;
begin
if FBitmap.IsValid then // draw the bitmap
begin
// determine paint rect
r1 := FBitmap.GetWidth / FBitmap.GetHeight;
r2 := ClientWidth / ClientHeight;
if r1 > r2 then // fit by width
begin
w := ClientWidth;
h := Floor(w / r1);
dx := 0;
dy := (ClientHeight - h) div 2;
end
else // fit by height
begin
h := ClientHeight;
w := Floor(h * r1);
dy := 0;
dx := (ClientWidth - w) div 2;
end;
with ClientRect do
R := Bounds(Left + dx, Top + dy, w, h);
FBitmap.Draw(Canvas.Handle, R);
// erase area around the image
Canvas.Brush.Color := Color;
if dx > 0 then
begin
with ClientRect do
R := Bounds(Left, Top, dx, ClientHeight);
Canvas.FillRect(R);
with ClientRect do
R := Bounds(Right - dx, Top, dx, ClientHeight);
Canvas.FillRect(R);
end else
if dy > 0 then
begin
with ClientRect do
R := Bounds(Left, Top, ClientWidth, dy);
Canvas.FillRect(R);
with ClientRect do
R := Bounds(Left, Bottom - dy, ClientWidth, dy);
Canvas.FillRect(R);
end
end
else // clear
begin
Canvas.Brush.Color := Color;
Canvas.FillRect(ClientRect);
end
end;
procedure TfwbMainForm.FormCreate(Sender: TObject);
begin
FBitmap := TFreeWinBitmap.Create;
mnuImage.Enabled := FBitmap.IsValid;
OD.Filter := FIU_GetAllFilters;
end;
procedure TfwbMainForm.mnuExitClick(Sender: TObject);
begin
Close;
end;
procedure TfwbMainForm.mnuFileOpenClick(Sender: TObject);
var
t: Cardinal;
begin
if OD.Execute then
begin
t := GetTickCount;
FBitmap.Load(OD.FileName);
t := GetTickCount - t;
mnuImage.Enabled := FBitmap.IsValid;
StatusBar.Panels[0].Text := 'Loaded in ' + IntToStr(t) + ' msec.';
StatusBar.Panels[1].Text := Format('%dx%d', [FBitmap.GetWidth, FBitmap.GetHeight]);
Invalidate;
end;
end;
procedure TfwbMainForm.FormResize(Sender: TObject);
begin
Invalidate
end;
procedure TfwbMainForm.WMEraseBkgnd(var Message: TMessage);
begin
Message.Result := 1;
end;
procedure TfwbMainForm.mnuFlipHorzClick(Sender: TObject);
begin
with FBitmap do
if Sender = mnuFlipHorz then
FLipHorizontal else
if Sender = mnuFlipVert then
FlipVertical else
if Sender = mnuTo4Bits then
ConvertTo4Bits else
if Sender = mnuTo8Bits then
ConvertTo8Bits else
if Sender = mnuTo16Bits555 then
ConvertTo16Bits555 else
if Sender = mnuTo16Bits565 then
ConvertTo16Bits565 else
if Sender = mnuTo24Bits then
ConvertTo24Bits else
if Sender = mnuTo32Bits then
ConvertTo32Bits else
if Sender = mnuDither then
Dither(FID_FS) else
if Sender = mnuQuantize then
ColorQuantize(FIQ_WUQUANT) else
if Sender = mnuGrayScale then
ConvertToGrayscale else
if Sender = mnuClockwise then
Rotate(-90) else
if Sender = mnuAntiClockwise then
Rotate(90) else
if Sender = mnuInvert then
Invert else
if Sender = mnuClear then
Clear;
Invalidate;
end;
procedure TfwbMainForm.btnCopyClick(Sender: TObject);
begin
if FBitmap.IsValid then FBitmap.CopyToClipBoard(Handle);
end;
procedure TfwbMainForm.btnClearClick(Sender: TObject);
begin
FBitmap.Clear;
Invalidate;
end;
procedure TfwbMainForm.btnPasteClick(Sender: TObject);
begin
FBitmap.PasteFromClipBoard;
Invalidate;
end;
end.

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@@ -0,0 +1,3 @@
The contents of FreeImageDW package are subject to the FreeImage Public License Version 1.0 (the "License"); you may not use this package except in compliance with the License. You may obtain a copy of the License at http://home.wxs.nl/~flvdberg/freeimage-license.txt
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.

File diff suppressed because it is too large Load Diff

File diff suppressed because it is too large Load Diff

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@@ -0,0 +1,186 @@
unit FreeUtils;
// ==========================================================
//
// Delphi wrapper for FreeImage 3
//
// Design and implementation by
// - Anatoliy Pulyaevskiy (xvel84@rambler.ru)
//
// Contributors:
// - Enzo Costantini (enzocostantini@libero.it)
// - Armindo (tech1.yxendis@wanadoo.fr)
// - Lorenzo Monti (LM) lomo74@gmail.com
//
// Revision history
// When Who What
// ----------- ----- -----------------------------------------------------------
// 2010-07-14 LM made RAD2010 compliant (unicode)
//
// This file is part of FreeImage 3
//
// COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTY
// OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES
// THAT THE COVERED CODE IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE
// OR NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED
// CODE IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, YOU (NOT
// THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY
// SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL
// PART OF THIS LICENSE. NO USE OF ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER
// THIS DISCLAIMER.
//
// Use at your own risk!
//
// ==========================================================
interface
{$I 'Version.inc'}
uses
{$IFDEF DELPHI2010}AnsiStrings,{$ENDIF} SysUtils, Classes, FreeImage;
function FIU_GetFIFType(filename: AnsiString): FREE_IMAGE_FORMAT;
// returns FIF (plugin) description string
function FIU_GetFIFDescription(fif: FREE_IMAGE_FORMAT): AnsiString;
procedure FIU_GetAllDescriptions(var Descriptions: TStringList);
// returns file extentions for FIF (e.g. '*.tif;*.tiff)
function FIU_GetFIFExtList(fif: FREE_IMAGE_FORMAT): AnsiString;
// returns file extentions for all plugins
function FIU_GetFullExtList: AnsiString;
// returns "Description + | + ExtList" for specified FIF
function FIU_GetFIFFilter(fif: FREE_IMAGE_FORMAT): AnsiString;
// All supported formats + Full filter list for FIFs
function FIU_GetAllFilters: AnsiString;
//Filter for OpenDialogs
function FIU_GetAllOpenFilters: AnsiString;
//Filter for SaveDialogs
function FIU_GetAllSaveFilters: AnsiString;
implementation
const
FIF_START = FIF_UNKNOWN;
FIF_END = FIF_XPM;
function FIU_GetFIFType(filename: AnsiString): FREE_IMAGE_FORMAT;
begin
Result := FreeImage_GetFileType(PAnsiChar(filename), 0);
end;
function FIU_GetFIFDescription(fif: FREE_IMAGE_FORMAT): AnsiString;
begin
Result := FreeImage_GetFIFDescription(fif)
end;
procedure FIU_GetAllDescriptions(var Descriptions: TStringList);
var
fif: FREE_IMAGE_FORMAT;
begin
Descriptions.Clear;
for fif := FIF_START to FIF_END do
Descriptions.Add(string(FreeImage_GetFIFDescription(fif)) + ' (' +
string(FIu_GetFIFExtList(fif)) + ')');
end;
function FIU_GetFIFExtList(fif: FREE_IMAGE_FORMAT): AnsiString;
var
ExtList: AnsiString;
I: Smallint;
C: AnsiChar;
begin
Result := '*.';
ExtList := FreeImage_GetFIFExtensionList(fif);
for I := 1 to Length(ExtList) do
begin
C := ExtList[i];
if C <> ',' then
Result := Result + C
else
Result := Result + ';*.';
end
end;
function FIU_GetFullExtList: AnsiString;
var
fif: FREE_IMAGE_FORMAT;
begin
Result := FIU_GetFIFExtList(FIF_START);
for fif := FIF_START to FIF_END do
Result := Result + ';' + FIU_GetFIFExtList(fif)
end;
function FIU_GetFIFFilter(fif: FREE_IMAGE_FORMAT): AnsiString;
var
Text, ExtList: AnsiString;
begin
Result := '';
if fif <> FIF_UNKNOWN then
begin
Text := {$IFDEF DELPHI2010}AnsiStrings.{$ENDIF}Trim(FreeImage_GetFIFDescription(fif));
ExtList := FIU_GetFIFExtList(fif);
Result := Text + '(' + ExtList + ')' + '|' + ExtList
end
end;
function FIU_GetAllFilters: AnsiString;
var
fif: FREE_IMAGE_FORMAT;
begin
Result := 'All supported formats|' + FIU_GetFullExtList;
for fif := FIF_START to FIF_END do
begin
Result := Result + '|' + FIU_GetFIFFilter(fif)
end;
end;
function FIU_GetAllOpenFilters: AnsiString;
var
fif: FREE_IMAGE_FORMAT;
begin
Result := 'All supported formats|' + FIU_GetFullExtList;
for fif := FIF_START to FIF_END do
if FreeImage_FIFSupportsReading(fif) then
begin
Result := Result + '|' + FIU_GetFIFFilter(fif)
end;
end;
function FIU_GetAllSaveFilters: AnsiString;
var
ExtList: AnsiString;
I: Smallint;
C: AnsiChar;
fif: FREE_IMAGE_FORMAT;
s: AnsiString;
begin
result := '';
for fif := FIF_START to FIF_END do
if FreeImage_FIFSupportsWriting(fif) then
begin
ExtList := FreeImage_GetFIFExtensionList(fif);
s := '';
for I := 1 to Length(ExtList) do
begin
C := ExtList[i];
if C <> ',' then
S := S + C
else
begin
result := Result + FreeImage_GetFIFDescription(fif) + ' (' + UpperCase(s) + ')|*.' + s + '|';
s := '';
end;
end;
result := Result + FreeImage_GetFIFDescription(fif) + ' (' + UpperCase(s) + ')|*.' + s + '|';
end;
end;
end.

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@@ -0,0 +1,186 @@
// ==========================================================
// Delphi wrapper for FreeImage 3
//
// Design and implementation by
// - Simon Beavis
// - Peter Bystr<74>m
// - Anatoliy Pulyaevskiy (xvel84@rambler.ru)
//
// Contributors:
// - Lorenzo Monti (LM) lomo74@gmail.com
//
// Revision history
// When Who What
// ----------- ----- -----------------------------------------------------------
// 2010-07-29 LM Added Free Pascal / Lazarus 32 bit support
//
// This file is part of FreeImage 3
//
// COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTY
// OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES
// THAT THE COVERED CODE IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE
// OR NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED
// CODE IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, YOU (NOT
// THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY
// SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL
// PART OF THIS LICENSE. NO USE OF ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER
// THIS DISCLAIMER.
//
// Use at your own risk!
// ==========================================================
//some older Delphi version will define WIN32 but not MSWINDOWS
{$IFNDEF MSWINDOWS}
{$IFDEF WIN32}
{$DEFINE MSWINDOWS}
{$ENDIF}
{$ENDIF}
//test for compiler
{$IFDEF FPC}
//Free pascal
{$IFNDEF CPU32}
{$ERROR "64 bit platforms not tested yet. Remove this line if you feel brave."}
{$ENDIF}
{$IFNDEF ENDIAN_LITTLE}
{$ERROR "Big endian CPUs not tested yet. Remove this line if you feel brave."}
{$ENDIF}
{$DEFINE DELPHI1}
{$DEFINE DELPHI2}
{$DEFINE DELPHI3}
{$DEFINE DELPHI4}
{$DEFINE DELPHI5}
{$DEFINE DELPHI6}
{$DEFINE DELPHI7}
{$ELSE}
//Delphi
{$IFDEF VER80}
{$DEFINE DELPHI1}
{$ENDIF}
{$IFDEF VER90}
{$DEFINE DELPHI1}
{$DEFINE DELPHI2}
{$ENDIF}
{$IFDEF VER100}
{$DEFINE DELPHI1}
{$DEFINE DELPHI2}
{$DEFINE DELPHI3}
{$ENDIF}
{$IFDEF VER120}
{$DEFINE DELPHI1}
{$DEFINE DELPHI2}
{$DEFINE DELPHI3}
{$DEFINE DELPHI4}
{$ENDIF}
{$IFDEF VER130}
{$DEFINE DELPHI1}
{$DEFINE DELPHI2}
{$DEFINE DELPHI3}
{$DEFINE DELPHI4}
{$DEFINE DELPHI5}
{$ENDIF}
{$IFDEF VER140}
{$DEFINE DELPHI1}
{$DEFINE DELPHI2}
{$DEFINE DELPHI3}
{$DEFINE DELPHI4}
{$DEFINE DELPHI5}
{$DEFINE DELPHI6}
{$ENDIF}
{$IFDEF VER150}
{$DEFINE DELPHI1}
{$DEFINE DELPHI2}
{$DEFINE DELPHI3}
{$DEFINE DELPHI4}
{$DEFINE DELPHI5}
{$DEFINE DELPHI6}
{$DEFINE DELPHI7}
{$ENDIF}
{$IFDEF VER160}
{$DEFINE DELPHI1}
{$DEFINE DELPHI2}
{$DEFINE DELPHI3}
{$DEFINE DELPHI4}
{$DEFINE DELPHI5}
{$DEFINE DELPHI6}
{$DEFINE DELPHI7}
{$DEFINE DELPHI8}
{$ENDIF}
{$IFDEF VER170}
{$DEFINE DELPHI1}
{$DEFINE DELPHI2}
{$DEFINE DELPHI3}
{$DEFINE DELPHI4}
{$DEFINE DELPHI5}
{$DEFINE DELPHI6}
{$DEFINE DELPHI7}
{$DEFINE DELPHI8}
{$DEFINE DELPHI2005}
{$ENDIF}
{$IFDEF VER180}
{$DEFINE DELPHI1}
{$DEFINE DELPHI2}
{$DEFINE DELPHI3}
{$DEFINE DELPHI4}
{$DEFINE DELPHI5}
{$DEFINE DELPHI6}
{$DEFINE DELPHI7}
{$DEFINE DELPHI8}
{$DEFINE DELPHI2005}
{$DEFINE DELPHI2006}
{$ENDIF}
{$IFDEF VER185}
{$DEFINE DELPHI1}
{$DEFINE DELPHI2}
{$DEFINE DELPHI3}
{$DEFINE DELPHI4}
{$DEFINE DELPHI5}
{$DEFINE DELPHI6}
{$DEFINE DELPHI7}
{$DEFINE DELPHI8}
{$DEFINE DELPHI2005}
{$DEFINE DELPHI2006}
{$DEFINE DELPHI2007}
{$ENDIF}
{$IFDEF VER200}
{$DEFINE DELPHI1}
{$DEFINE DELPHI2}
{$DEFINE DELPHI3}
{$DEFINE DELPHI4}
{$DEFINE DELPHI5}
{$DEFINE DELPHI6}
{$DEFINE DELPHI7}
{$DEFINE DELPHI8}
{$DEFINE DELPHI2005}
{$DEFINE DELPHI2006}
{$DEFINE DELPHI2007}
{$DEFINE DELPHI2009}
{$ENDIF}
{$IFDEF VER210}
{$DEFINE DELPHI1}
{$DEFINE DELPHI2}
{$DEFINE DELPHI3}
{$DEFINE DELPHI4}
{$DEFINE DELPHI5}
{$DEFINE DELPHI6}
{$DEFINE DELPHI7}
{$DEFINE DELPHI8}
{$DEFINE DELPHI2005}
{$DEFINE DELPHI2006}
{$DEFINE DELPHI2007}
{$DEFINE DELPHI2009}
{$DEFINE DELPHI2010}
{$ENDIF}
{$ENDIF}