You've already forked lazarus-ccr
mbColorLib: Initial commit (still some issues)
git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@5452 8e941d3f-bd1b-0410-a28a-d453659cc2b4
This commit is contained in:
wp_xxyyzz
290
components/mbColorLib/MColorPicker.pas
Normal file
290
components/mbColorLib/MColorPicker.pas
Normal file
@ -0,0 +1,290 @@
|
||||
unit MColorPicker;
|
||||
|
||||
interface
|
||||
|
||||
{$IFDEF FPC}
|
||||
{$MODE DELPHI}
|
||||
{$ENDIF}
|
||||
|
||||
uses
|
||||
{$IFDEF FPC}
|
||||
LCLIntf, LCLType, LMessages,
|
||||
{$ELSE}
|
||||
Windows, Messages,
|
||||
{$ENDIF}
|
||||
SysUtils, Classes, Controls, Graphics, Forms,
|
||||
RGBCMYKUtils, mbTrackBarPicker, HTMLColors, Scanlines;
|
||||
|
||||
type
|
||||
TMColorPicker = class(TmbTrackBarPicker)
|
||||
private
|
||||
FCyan, FMagenta, FYellow, FBlack: integer;
|
||||
FMBmp: TBitmap;
|
||||
|
||||
function ArrowPosFromMagenta(m: integer): integer;
|
||||
function MagentaFromArrowPos(p: integer): integer;
|
||||
function GetSelectedColor: TColor;
|
||||
procedure SetSelectedColor(c: TColor);
|
||||
procedure CreateMGradient;
|
||||
procedure SetCyan(c: integer);
|
||||
procedure SetMagenta(m: integer);
|
||||
procedure SetYellow(y: integer);
|
||||
procedure SetBlack(k: integer);
|
||||
protected
|
||||
procedure CreateWnd; override;
|
||||
procedure Execute(tbaAction: integer); override;
|
||||
function GetArrowPos: integer; override;
|
||||
function GetSelectedValue: integer; override;
|
||||
public
|
||||
constructor Create(AOwner: TComponent); override;
|
||||
destructor Destroy; override;
|
||||
published
|
||||
property Cyan: integer read FCyan write SetCyan default 0;
|
||||
property Magenta: integer read FMagenta write SetMagenta default 255;
|
||||
property Yellow: integer read FYellow write SetYellow default 0;
|
||||
property Black: integer read FBlack write SetBlack default 0;
|
||||
property SelectedColor: TColor read GetSelectedColor write SetSelectedColor default clRed;
|
||||
property Layout default lyVertical;
|
||||
end;
|
||||
|
||||
procedure Register;
|
||||
|
||||
implementation
|
||||
|
||||
{$IFDEF FPC}
|
||||
{$R MColorPicker.dcr}
|
||||
{$ENDIF}
|
||||
|
||||
procedure Register;
|
||||
begin
|
||||
RegisterComponents('mbColor Lib', [TMColorPicker]);
|
||||
end;
|
||||
|
||||
{TMColorPicker}
|
||||
|
||||
constructor TMColorPicker.Create(AOwner: TComponent);
|
||||
begin
|
||||
inherited;
|
||||
FMBmp := TBitmap.Create;
|
||||
FMBmp.PixelFormat := pf32bit;
|
||||
FMBmp.SetSize(12, 255);
|
||||
Width := 22;
|
||||
Height := 267;
|
||||
Layout := lyVertical;
|
||||
FCyan := 0;
|
||||
FMagenta := 255;
|
||||
FYellow := 0;
|
||||
FBlack := 0;
|
||||
FArrowPos := ArrowPosFromMagenta(255);
|
||||
FChange := false;
|
||||
SetMagenta(255);
|
||||
HintFormat := 'Magenta: %value';
|
||||
FManual := false;
|
||||
FChange := true;
|
||||
end;
|
||||
|
||||
destructor TMColorPicker.Destroy;
|
||||
begin
|
||||
FMBmp.Free;
|
||||
inherited Destroy;
|
||||
end;
|
||||
|
||||
procedure TMColorPicker.CreateWnd;
|
||||
begin
|
||||
inherited;
|
||||
CreateMGradient;
|
||||
end;
|
||||
|
||||
procedure TMColorPicker.CreateMGradient;
|
||||
var
|
||||
i,j: integer;
|
||||
row: pRGBQuadArray;
|
||||
begin
|
||||
if FMBmp = nil then
|
||||
begin
|
||||
FMBmp := TBitmap.Create;
|
||||
FMBmp.PixelFormat := pf32bit;
|
||||
end;
|
||||
if Layout = lyHorizontal then
|
||||
begin
|
||||
FMBmp.width := 255;
|
||||
FMBmp.height := 12;
|
||||
for i := 0 to 254 do
|
||||
for j := 0 to 11 do
|
||||
begin
|
||||
row := FMBmp.ScanLine[j];
|
||||
if not WebSafe then
|
||||
row[i] := RGBToRGBQuad(CMYKtoTColor(FCyan, i, FYellow, FBlack))
|
||||
// FMBmp.Canvas.Pixels[i, j] := CMYKtoTColor(FCyan, i, FYellow, FBlack)
|
||||
else
|
||||
row[i] := RGBToRGBQuad(GetWebSafe(CMYKtoTColor(FCyan, i, FYellow, FBlack)));
|
||||
// FMBmp.Canvas.Pixels[i, j] := GetWebSafe(CMYKtoTColor(FCyan, i, FYellow, FBlack));
|
||||
end;
|
||||
end
|
||||
else
|
||||
begin
|
||||
FMBmp.width := 12;
|
||||
FMBmp.height := 255;
|
||||
for i := 0 to 254 do
|
||||
begin
|
||||
row := FMBmp.Scanline[i];
|
||||
for j := 0 to 11 do
|
||||
if not WebSafe then
|
||||
row[j] := RGBToRGBQuad(CMYKtoTColor(FCyan, 255-i, FYellow, FBlack))
|
||||
// FMBmp.Canvas.Pixels[j, i] := CMYKtoTColor(FCyan, 255-i, FYellow, FBlack)
|
||||
else
|
||||
row[j] := RGBToRGBQuad(GetWebSafe(CMYKtoTColor(FCyan, 255-i, FYellow, FBlack)));
|
||||
// FMBmp.Canvas.Pixels[j, i] := GetWebSafe(CMYKtoTColor(FCyan, 255-i, FYellow, FBlack));
|
||||
end;
|
||||
end;
|
||||
end;
|
||||
|
||||
procedure TMColorPicker.SetMagenta(m: integer);
|
||||
begin
|
||||
if M < 0 then M := 0;
|
||||
if M > 255 then M := 255;
|
||||
if FMagenta <> m then
|
||||
begin
|
||||
FMagenta := m;
|
||||
FArrowPos := ArrowPosFromMagenta(m);
|
||||
FManual := false;
|
||||
Invalidate;
|
||||
if FChange then
|
||||
if Assigned(OnChange) then OnChange(Self);
|
||||
end;
|
||||
end;
|
||||
|
||||
procedure TMColorPicker.SetCyan(c: integer);
|
||||
begin
|
||||
if c > 255 then c := 255;
|
||||
if c < 0 then c := 0;
|
||||
if FCyan <> c then
|
||||
begin
|
||||
FCyan := c;
|
||||
FManual := false;
|
||||
CreateMGradient;
|
||||
Invalidate;
|
||||
if FChange then
|
||||
if Assigned(OnChange) then OnChange(Self);
|
||||
end;
|
||||
end;
|
||||
|
||||
procedure TMColorPicker.SetYellow(y: integer);
|
||||
begin
|
||||
if y > 255 then y := 255;
|
||||
if y < 0 then y := 0;
|
||||
if FYellow <> y then
|
||||
begin
|
||||
FYellow := y;
|
||||
FManual := false;
|
||||
CreateMGradient;
|
||||
Invalidate;
|
||||
if FChange then
|
||||
if Assigned(OnChange) then OnChange(Self);
|
||||
end;
|
||||
end;
|
||||
|
||||
procedure TMColorPicker.SetBlack(k: integer);
|
||||
begin
|
||||
if k > 255 then k := 255;
|
||||
if k < 0 then k := 0;
|
||||
if FBlack <> k then
|
||||
begin
|
||||
FBlack := k;
|
||||
FManual := false;
|
||||
CreateMGradient;
|
||||
Invalidate;
|
||||
if FChange then
|
||||
if Assigned(OnChange) then OnChange(Self);
|
||||
end;
|
||||
end;
|
||||
|
||||
function TMColorPicker.ArrowPosFromMagenta(m: integer): integer;
|
||||
var
|
||||
a: integer;
|
||||
begin
|
||||
if Layout = lyHorizontal then
|
||||
begin
|
||||
a := Round(((Width - 12)/255)*m);
|
||||
if a > Width - FLimit then a := Width - FLimit;
|
||||
end
|
||||
else
|
||||
begin
|
||||
m := 255 - m;
|
||||
a := Round(((Height - 12)/255)*m);
|
||||
if a > Height - FLimit then a := Height - FLimit;
|
||||
end;
|
||||
if a < 0 then a := 0;
|
||||
Result := a;
|
||||
end;
|
||||
|
||||
function TMColorPicker.MagentaFromArrowPos(p: integer): integer;
|
||||
var
|
||||
r: integer;
|
||||
begin
|
||||
if Layout = lyHorizontal then
|
||||
r := Round(p/((Width - 12)/255))
|
||||
else
|
||||
r := Round(255 - p/((Height - 12)/255));
|
||||
if r < 0 then r := 0;
|
||||
if r > 255 then r := 255;
|
||||
Result := r;
|
||||
end;
|
||||
|
||||
function TMColorPicker.GetSelectedColor: TColor;
|
||||
begin
|
||||
if not WebSafe then
|
||||
Result := CMYKtoTColor(FCyan, FMagenta, FYellow, FBlack)
|
||||
else
|
||||
Result := GetWebSafe(CMYKtoTColor(FCyan, FMagenta, FYellow, FBlack));
|
||||
end;
|
||||
|
||||
function TMColorPicker.GetSelectedValue: integer;
|
||||
begin
|
||||
Result := FMagenta;
|
||||
end;
|
||||
|
||||
procedure TMColorPicker.SetSelectedColor(c: TColor);
|
||||
var
|
||||
cy, m, y, k: integer;
|
||||
begin
|
||||
if WebSafe then c := GetWebSafe(c);
|
||||
ColorToCMYK(c, cy, m, y, k);
|
||||
FChange := false;
|
||||
SetCyan(cy);
|
||||
SetYellow(y);
|
||||
SetBlack(k);
|
||||
SetMagenta(m);
|
||||
FManual := false;
|
||||
FChange := true;
|
||||
if Assigned(OnChange) then OnChange(Self);
|
||||
end;
|
||||
|
||||
function TMColorPicker.GetArrowPos: integer;
|
||||
begin
|
||||
Result := ArrowPosFromMagenta(FMagenta);
|
||||
end;
|
||||
|
||||
procedure TMColorPicker.Execute(tbaAction: integer);
|
||||
begin
|
||||
case tbaAction of
|
||||
TBA_Resize: SetMagenta(FMagenta);
|
||||
TBA_Paint: Canvas.StretchDraw(FPickRect, FMBmp);
|
||||
TBA_MouseMove: FMagenta := MagentaFromArrowPos(FArrowPos);
|
||||
TBA_MouseDown: FMagenta := MagentaFromArrowPos(FArrowPos);
|
||||
TBA_MouseUp: FMagenta := MagentaFromArrowPos(FArrowPos);
|
||||
TBA_WheelUp: SetMagenta(FMagenta + Increment);
|
||||
TBA_WheelDown: SetMagenta(FMagenta - Increment);
|
||||
TBA_VKRight: SetMagenta(FMagenta + Increment);
|
||||
TBA_VKCtrlRight: SetMagenta(255);
|
||||
TBA_VKLeft: SetMagenta(FMagenta - Increment);
|
||||
TBA_VKCtrlLeft: SetMagenta(0);
|
||||
TBA_VKUp: SetMagenta(FMagenta + Increment);
|
||||
TBA_VKCtrlUp: SetMagenta(255);
|
||||
TBA_VKDown: SetMagenta(FMagenta - Increment);
|
||||
TBA_VKCtrlDown: SetMagenta(0);
|
||||
TBA_RedoBMP: CreateMGradient;
|
||||
end;
|
||||
end;
|
||||
|
||||
end.
|
||||
Reference in New Issue
Block a user