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Adds laz color palette to lazarus-ccr subversion

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sekelsenmat
2010-08-31 15:10:25 +00:00
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GNU LIBRARY GENERAL PUBLIC LICENSE
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This is the file COPYING.modifiedLGPL, it applies to several units in the
Lazarus sources distributed by members of the Lazarus Development Team.
All files contains headers showing the appropriate license. See there if this
modification can be applied.
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LazarusResources.Add('tcolorpalette','XPM',[
'/* XPM */'#10'static char *graphic[] = {'#10'"20 21 13 1",'#10'". c #848484"'
+','#10'", c None",'#10'"- c #FFFFFF",'#10'"* c #C6C6C6",'#10'"a c #000000",'
+#10'"b c #840000",'#10'"c c #848400",'#10'"d c #808000",'#10'"e c #FF0000",'
+#10'"f c #FFFF00",'#10'"g c #008400",'#10'"h c #008484",'#10'"i c #000084",'
+#10'"...................,",'#10'".-----------------*-",'#10'".-aaaaaaaaaaaaa'
+'aaa.-",'#10'".-aaaaaabbbbacccca.-",'#10'".-aaaaaabbbbacccca.-",'#10'".-aaaa'
+'aabbbbacccca.-",'#10'".-aaaaaabbbbaddcca.-",'#10'".-aaaaaaaaaaaaaaaa.-",'#10
+'".-a----aeeeeaffffa.-",'#10'".-a----aeeeeaffffa.-",'#10'".-a----aeeeeaffffa'
+'.-",'#10'".-a----aeeeeaffffa.-",'#10'".-aaaaaaaaaaaaaaaa.-",'#10'".-aggggah'
+'hhhaiiiia.-",'#10'".-aggggahhhhaiiiia.-",'#10'".-aggggahhhhaiiiia.-",'#10'"'
+'.-aggggahhhhaiiiia.-",'#10'".-aaaaaaaaaaaaaaaa.-",'#10'".*.................'
+'-",'#10'",-------------------",'#10'",,,,,,,,,,,,,,,,,,,,"}'#10
]);

364
components/colorpalette/colorpalette.pas Normal file
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{
/***************************************************************************
ColorPalette.pas
***************************************************************************/
*****************************************************************************
* *
* See the file COPYING.modifiedLGPL, included in this distribution, *
* for details about the copyright. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. *
* *
*****************************************************************************
Author: Tom Gregorovic (_tom_@centrum.cz)
Abstract:
Color palette grid with custom palette support.
The OnColorPick event is fired when user picks a color.
The LoadPalette procedure loads custom palette.
Custom palette example:
$COLS 8
# sets count of palette grid columns
0,0,0
# inserts color r,g,b
255,255,255
$NONE
# inserts empty palette grid cell
$BLENDWB 128,128,128 3
# creates color gradient white -> color -> black with specified steps
}
unit ColorPalette;
{$ifdef fpc}
{$mode objfpc}{$H+}
{$endif}
interface
uses
Classes, SysUtils, LResources, Controls, Forms, Graphics, Math,
LCLType;
type
TColorMouseEvent = procedure (Sender: TObject; AColor: TColor; Shift: TShiftState) of Object;
{ TCustomColorPalette }
TCustomColorPalette = class(TGraphicControl)
private
FButtonHeight: Integer;
FButtonWidth: Integer;
FCols: Integer;
FOnColorMouseMove: TColorMouseEvent;
FOnColorPick: TColorMouseEvent;
FRows: Integer;
FColors: TList;
function GetColors(Index: Integer): TColor;
procedure SetButtonHeight(const AValue: Integer);
procedure SetButtonWidth(const AValue: Integer);
procedure SetColors(Index: Integer; const AValue: TColor);
procedure UpdateSize;
protected
procedure MouseDown(Button: TMouseButton; Shift:TShiftState; X, Y:Integer); override;
procedure MouseMove(Shift:TShiftState; X, Y:Integer); override;
procedure ColorPick(AColor: TColor; Shift: TShiftState); dynamic;
procedure ColorMouseMove(AColor: TColor; Shift: TShiftState); dynamic;
public
constructor Create(TheOwner: TComponent); override;
destructor Destroy; override;
procedure Paint; override;
public
procedure LoadPalette(const FileName: String);
property ButtonWidth: Integer read FButtonWidth write SetButtonWidth;
property ButtonHeight: Integer read FButtonHeight write SetButtonHeight;
property Colors[Index: Integer]: TColor read GetColors write SetColors;
property OnColorPick: TColorMouseEvent read FOnColorPick write FOnColorPick;
property OnColorMouseMove: TColorMouseEvent read FOnColorMouseMove write FOnColorMouseMove;
property Height stored False;
property Width stored False;
end;
TColorPalette = class(TCustomColorPalette)
published
property Align;
property Anchors;
property BorderSpacing;
property ButtonWidth;
property ButtonHeight;
property Color;
property Constraints;
property DragCursor;
property DragKind;
property DragMode;
property Enabled;
property Hint;
property ParentColor;
property ParentShowHint;
property PopupMenu;
property ShowHint;
property Visible;
property OnChangeBounds;
property OnClick;
property OnColorMouseMove;
property OnColorPick;
property OnDblClick;
property OnMouseDown;
property OnMouseMove;
property OnMouseUp;
property OnMouseEnter;
property OnMouseLeave;
property OnResize;
end;
procedure Register;
implementation
procedure Register;
begin
RegisterComponents('Misc', [TColorPalette]);
end;
{ TCustomColorPalette }
procedure TCustomColorPalette.SetButtonHeight(const AValue: Integer);
begin
if FButtonHeight = AValue then Exit;
FButtonHeight := AValue;
if FButtonHeight < 1 then FButtonHeight := 1;
UpdateSize;
end;
function TCustomColorPalette.GetColors(Index: Integer): TColor;
begin
Result := TColor(FColors.Items[Index]);
end;
procedure TCustomColorPalette.SetButtonWidth(const AValue: Integer);
begin
if FButtonWidth = AValue then Exit;
FButtonWidth := AValue;
if FButtonWidth < 1 then FButtonWidth := 1;
UpdateSize;
end;
procedure TCustomColorPalette.SetColors(Index: Integer; const AValue: TColor);
begin
FColors.Items[Index] := Pointer(AValue);
end;
procedure TCustomColorPalette.UpdateSize;
begin
if (FCols = 0) or (FColors.Count = 0) then FRows := 0
else
FRows := Ceil(FColors.Count / FCols);
SetBounds(Left, Top, FCols * FButtonWidth + 1, FRows * FButtonHeight + 1)
end;
procedure TCustomColorPalette.MouseDown(Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
var
C: TColor;
begin
inherited;
X := X div FButtonWidth;
Y := Y div FButtonHeight;
if X + Y * FCols < FColors.Count then
begin
C := TColor(FColors.Items[X + Y * FCols]);
if C <> clNone then ColorPick(C, Shift);
end;
end;
procedure TCustomColorPalette.MouseMove(Shift: TShiftState; X, Y: Integer);
var
C: TColor;
begin
inherited;
X := X div FButtonWidth;
Y := Y div FButtonHeight;
if X + Y * FCols < FColors.Count then
begin
C := TColor(FColors.Items[X + Y * FCols]);
if C <> clNone then ColorMouseMove(C, Shift);
end;
end;
procedure TCustomColorPalette.ColorPick(AColor: TColor; Shift: TShiftState);
begin
if Assigned(FOnColorPick) then FOnColorPick(Self, AColor, Shift);
end;
procedure TCustomColorPalette.ColorMouseMove(AColor: TColor; Shift: TShiftState);
begin
if Assigned(FOnColorMouseMove) then FOnColorMouseMove(Self, AColor, Shift);
end;
constructor TCustomColorPalette.Create(TheOwner: TComponent);
begin
inherited;
FColors := TList.Create;
FButtonWidth := 12;
FButtonHeight := 12;
ControlStyle := ControlStyle + [csFixedWidth, csFixedHeight];
FCols := 8;
FColors.Add(Pointer(clBlack));
FColors.Add(Pointer(clGray));
FColors.Add(Pointer(clMaroon));
FColors.Add(Pointer(clOlive));
FColors.Add(Pointer(clGreen));
FColors.Add(Pointer(clTeal));
FColors.Add(Pointer(clNavy));
FColors.Add(Pointer(clPurple));
FColors.Add(Pointer(clWhite));
FColors.Add(Pointer(clSilver));
FColors.Add(Pointer(clRed));
FColors.Add(Pointer(clYellow));
FColors.Add(Pointer(clLime));
FColors.Add(Pointer(clAqua));
FColors.Add(Pointer(clBlue));
FColors.Add(Pointer(clFuchsia));
UpdateSize;
end;
destructor TCustomColorPalette.Destroy;
begin
FColors.Free;
inherited;
end;
procedure TCustomColorPalette.Paint;
var
I, X, Y: Integer;
begin
Canvas.Pen.Color := clBlack;
for I := 0 to Pred(FColors.Count) do
begin
Y := I div FCols;
X := I mod FCols;
if TColor(FColors.Items[I]) <> clNone then
begin
Canvas.Brush.Color := TColor(FColors.Items[I]);
Canvas.Rectangle(Bounds(X * FButtonWidth, Y * FButtonHeight, FButtonWidth,
FButtonHeight));
end;
end;
end;
procedure TCustomColorPalette.LoadPalette(const FileName: String);
var
F: TextFile;
Line: String;
C: TColor;
function ParseColor(var S: String): TColor;
var
R, G, B: Integer;
I: Integer;
begin
R := StrToIntDef(Copy(S, 1, Pos(',', S) - 1), 0);
Delete(S, 1, Pos(',', S));
G := StrToIntDef(Copy(S, 1, Pos(',', S) - 1), 0);
Delete(S, 1, Pos(',', S));
S := TrimLeft(S);
I := 1;
while (I <= Length(S)) and (S[I] in ['0'..'9']) do Inc(I);
B := StrToIntDef(Copy(S, 1, Pred(I)), 0);
Delete(S, 1, Pred(I));
Result := RGBToColor(Max(0, Min(R, 255)), Max(0, Min(G, 255)), Max(0, Min(B, 255)));
end;
procedure BlendWBColor(Color: TColor; Steps: Integer);
var
I: Integer;
R, G, B, NR, NG, NB: Byte;
begin
RedGreenBlue(Color, R, G, B);
for I := 1 to Steps do
begin
NR := Round((R * I + 255 * (Steps + 1 - I)) / (Steps + 1));
NG := Round((G * I + 255 * (Steps + 1 - I)) / (Steps + 1));
NB := Round((B * I + 255 * (Steps + 1 - I)) / (Steps + 1));
FColors.Add(Pointer(RGBToColor(NR, NG, NB)));
end;
FColors.Add(Pointer(Color));
for I := Steps downto 1 do
begin
NR := Round(R * I / (Steps + 1));
NG := Round(G * I / (Steps + 1));
NB := Round(B * I / (Steps + 1));
FColors.Add(Pointer(RGBToColor(NR, NG, NB)));
end;
end;
begin
AssignFile(F, FileName);
try
Reset(F);
FColors.Clear;
FCols := 1;
while not EOF(F) do
begin
ReadLn(F, Line);
Line := Trim(Line);
if Length(Line) < 2 then Continue;
if Line[1] = '#' then Continue;
if Line[1] = '$' then
begin
if Copy(Line, 2, 4) = 'NONE' then FColors.Add(Pointer(clNone));
if Copy(Line, 2, 4) = 'COLS' then FCols := StrToIntDef(Copy(Line, 6, MaxInt), 8);
if Copy(Line, 2, 7) = 'BLENDWB' then
begin
Delete(Line, 1, 8);
C := ParseColor(Line);
BlendWBColor(C, StrToInt(Line));
end;
end
else
if Pos(',', Line) > 0 then FColors.Add(Pointer(ParseColor(Line)));
end;
finally
Close(F);
end;
UpdateSize;
end;
initialization
{$I colorpalette.lrs}
end.

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components/colorpalette/default.pal Normal file
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# Lazarus Icon Editor default palette
$COLS 8
# sets count of palette grid columns
# CGA 16 colors:
# r,g,b
0,0,0
128,128,128
128,0,0
128,128,0
0,128,0
0,128,128
0,0,128
128,0,128
#
255,255,255
192,192,192
255,0,0
255,255,0
0,255,0
0,255,255
0,0,255
255,0,255
#end
$NONE
# inserts empty palette grid cell
$NONE
$NONE
$NONE
$NONE
$NONE
$NONE
$NONE
$BLENDWB 128,128,128 3
# creates color gradient white -> color -> black with specified steps
$NONE
$BLENDWB 255,0,0 3
$NONE
$BLENDWB 255,64,0 3
$NONE
$BLENDWB 255,128,0 3
$NONE
$BLENDWB 255,192,0 3
$NONE
$BLENDWB 255,255,0 3
$NONE
$BLENDWB 192,255,0 3
$NONE
$BLENDWB 128,255,0 3
$NONE
$BLENDWB 64,255,0 3
$NONE
$BLENDWB 0,255,0 3
$NONE
$BLENDWB 0,255,64 3
$NONE
$BLENDWB 0,255,128 3
$NONE
$BLENDWB 0,255,192 3
$NONE
$BLENDWB 0,255,255 3
$NONE
$BLENDWB 0,192,255 3
$NONE
$BLENDWB 0,128,255 3
$NONE
$BLENDWB 0,64,255 3
$NONE
$BLENDWB 0,0,255 3
$NONE
$BLENDWB 64,0,255 3
$NONE
$BLENDWB 128,0,255 3
$NONE
$BLENDWB 192,0,255 3
$NONE
$BLENDWB 255,0,255 3
$NONE
$BLENDWB 255,0,192 3
$NONE
$BLENDWB 255,0,128 3
$NONE
$BLENDWB 255,0,64 3
$NONE

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<?xml version="1.0"?>
<CONFIG>
<Package Version="2">
<PathDelim Value="\"/>
<Name Value="LazColorPalette"/>
<Author Value="Tom Gregorovic (_tom_@centrum.cz)"/>
<CompilerOptions>
<Version Value="5"/>
<PathDelim Value="\"/>
<SearchPaths>
<UnitOutputDirectory Value="lib\$(TargetCPU)-$(TargetOS)\"/>
</SearchPaths>
<CodeGeneration>
<Generate Value="Faster"/>
</CodeGeneration>
<Other>
<CompilerPath Value="$(CompPath)"/>
</Other>
</CompilerOptions>
<Description Value="This package contains color palette component."/>
<License Value="Modified LGPL"/>
<Version Minor="1"/>
<Files Count="2">
<Item1>
<Filename Value="colorpalette.lrs"/>
<Type Value="LRS"/>
</Item1>
<Item2>
<Filename Value="colorpalette.pas"/>
<HasRegisterProc Value="True"/>
<UnitName Value="ColorPalette"/>
</Item2>
</Files>
<Type Value="RunAndDesignTime"/>
<RequiredPkgs Count="2">
<Item1>
<PackageName Value="LCL"/>
</Item1>
<Item2>
<PackageName Value="FCL"/>
<MinVersion Major="1" Valid="True"/>
</Item2>
</RequiredPkgs>
<UsageOptions>
<UnitPath Value="$(PkgOutDir)\"/>
</UsageOptions>
<PublishOptions>
<Version Value="2"/>
<IgnoreBinaries Value="False"/>
</PublishOptions>
</Package>
</CONFIG>

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components/colorpalette/lazcolorpalette.pas Normal file
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{ This file was automatically created by Lazarus. Do not edit!
This source is only used to compile and install the package.
}
unit LazColorPalette;
interface
uses
ColorPalette, LazarusPackageIntf;
implementation
procedure Register;
begin
RegisterUnit('ColorPalette', @ColorPalette.Register);
end;
initialization
RegisterPackage('LazColorPalette', @Register);
end.

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