1 | unit UFGraphics;
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2 |
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3 | {$mode delphi}
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4 |
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5 | interface
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6 |
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7 | uses
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8 | Classes, SysUtils, Graphics, UGGraphics, UPixmapSpecialized, Fgl;
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9 |
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10 | type
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11 | TColorName = (cnBlack, cnWhite, cnBlue, cnRed, cnGreen, cnGray, cnSilver);
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12 |
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13 | IBColor = interface
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14 | procedure SetColorName(ColorName: TColorName);
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15 | procedure SetColor(Color: TColor);
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16 | procedure SetRandom;
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17 | end;
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18 |
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19 | { TBColor }
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20 |
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21 | TBColor = class(TInterfacedObject, IBColor)
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22 | procedure SetColorName(ColorName: TColorName); virtual;
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23 | procedure SetColor(Color: TColor); virtual;
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24 | procedure SetRandom; virtual;
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25 | end;
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26 |
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27 | IBColorClass = class of TBColor;
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28 |
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29 | { TBPixmap }
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30 |
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31 | TBPixmap = class
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32 | public
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33 | type
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34 | TGetColorPos = function (Position: TPoint): IBColor of object;
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35 | private
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36 | FSize: TPoint;
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37 | protected
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38 | function GetPixel(X, Y: Integer): IBColor; virtual;
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39 | procedure SetPixel(X, Y: Integer; AValue: IBColor); virtual;
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40 | procedure SetSize(AValue: TPoint); virtual;
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41 | public
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42 | procedure Mirror; virtual;
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43 | procedure Flip; virtual;
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44 | procedure Negative; virtual;
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45 | procedure Fill(Color: IBColor); virtual; overload;
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46 | procedure Fill(Func: TGetColorPos); virtual; overload;
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47 | procedure Line(P1, P2: TPoint; Color: IBColor); virtual;
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48 | procedure PaintToCanvas(Canvas: TCanvas); virtual; overload;
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49 | procedure PaintToCanvas(Canvas: TCanvas; Rect: TRect); virtual; overload;
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50 | procedure PaintToBitmap(Bitmap: TBitmap; Rect: TRect); virtual;
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51 | procedure LoadFromCanvas(Canvas: TCanvas); virtual;
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52 | procedure LoadFromBitmap(Bitmap: TBitmap); virtual;
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53 | function GetDataSize: Integer; virtual;
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54 | constructor Create; virtual;
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55 | property Size: TPoint read FSize write SetSize;
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56 | property Pixels[X, Y: Integer]: IBColor read GetPixel write SetPixel;
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57 | end;
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58 |
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59 | TBPixmapClass = class of TBPixmap;
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60 |
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61 | { TColorFormatChannel }
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62 |
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63 | TColorFormatChannel = record
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64 | Name: string;
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65 | Position: Integer;
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66 | BitWidth: Integer;
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67 | end;
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68 |
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69 | { TColorFormat }
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70 |
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71 | TColorFormat = class
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72 | Name: string;
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73 | BitDepth: Integer;
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74 | Channels: array of TColorFormatChannel;
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75 | BackendColorClass: IBColorClass;
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76 | BackendPixmapClass: TBPixmapClass;
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77 | procedure AddChannel(Name: string; Position, BitWidth: Integer);
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78 | function GetBackendColor: IBColor;
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79 | function GetBackendImage: TBPixmap;
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80 | constructor Create; virtual;
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81 | function GetChannelStateCount(Channel: Integer): Integer;
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82 | end;
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83 |
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84 | TColorFormats = class(TFPGObjectList<TColorFormat>)
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85 | end;
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86 |
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87 | TColorFormatClass = class of TColorFormat;
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88 |
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89 | { TColorFormatManager }
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90 |
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91 | TColorFormatManager = class
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92 | private
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93 | FFormats: TColorFormats;
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94 | function GetFormat(Index: Integer): TColorFormat;
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95 | public
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96 | constructor Create; virtual;
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97 | destructor Destroy; override;
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98 | function FindByName(Name: string): Integer;
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99 | procedure RegisterFormat(Format: TColorFormatClass);
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100 | function FormatCount: Integer;
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101 | property Formats: TColorFormats read FFormats;
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102 | end;
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103 |
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104 | IFColor = interface
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105 | end;
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106 |
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107 | { TFColor }
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108 |
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109 | TFColor = class(TInterfacedObject, IFColor)
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110 | private
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111 | FBackend: IBColor;
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112 | FColorFormat: TColorFormat;
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113 | procedure SetColorFormat(AValue: TColorFormat);
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114 | public
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115 | property Backend: IBColor read FBackend;
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116 | property ColorFormat: TColorFormat read FColorFormat write SetColorFormat;
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117 | procedure SetColorName(ColorName: TColorName);
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118 | procedure SetRandom;
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119 | procedure SetColor(Color: TColor);
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120 | constructor Create; overload;
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121 | constructor Create(ColorFormat: TColorFormat; ColorName: TColorName); overload;
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122 | constructor Create(ColorFormat: TColorFormat; Color: TColor); overload;
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123 | destructor Destroy; override;
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124 | end;
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125 |
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126 | TFCanvas = class;
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127 | TFPixmap = class;
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128 |
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129 | { TFBrush }
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130 |
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131 | TFBrush = class
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132 | Color: IFColor;
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133 | Canvas: TFCanvas;
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134 | end;
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135 |
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136 | { TFPen }
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137 |
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138 | TFPen = class
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139 | Position: TPoint;
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140 | Color: IFColor;
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141 | Canvas: TFCanvas;
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142 | procedure MoveTo(Pos: TPoint);
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143 | procedure LineTo(Pos: TPoint);
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144 | end;
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145 |
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146 | { TFCanvas }
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147 |
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148 | TFCanvas = class
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149 | Pixmap: TFPixmap;
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150 | Pen: TFPen;
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151 | Brush: TFBrush;
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152 | constructor Create;
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153 | destructor Destroy; override;
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154 | end;
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155 |
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156 |
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157 | { TFPixmap }
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158 |
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159 | TFPixmap = class(TComponent)
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160 | public
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161 | type
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162 | TGetColorPos = function (Position: TPoint; ColorFormat: TColorFormat): IFColor of object;
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163 | private
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164 | FBackend: TBPixmap;
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165 | FCanvas: TFCanvas;
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166 | FColorFormat: TColorFormat;
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167 | FSize: TPoint;
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168 | FillCallBack: TGetColorPos;
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169 | function FillGetColor(Position: TPoint): IBColor;
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170 | function GetPixel(X, Y: Integer): IFColor;
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171 | procedure SetColorFormat(AValue: TColorFormat);
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172 | procedure SetPixel(X, Y: Integer; AValue: IFColor);
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173 | procedure SetSize(AValue: TPoint);
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174 | function ColorRandom(Position: TPoint; ColorFormat: TColorFormat): IFColor;
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175 | public
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176 | procedure Clear;
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177 | procedure Flip;
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178 | procedure Mirror;
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179 | procedure Gradient;
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180 | procedure Negative;
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181 | procedure Random;
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182 | procedure Fill(Color: IFColor); overload;
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183 | procedure Fill(Func: TGetColorPos); overload;
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184 | procedure PaintToCanvas(Canvas: TCanvas); overload;
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185 | procedure PaintToCanvas(Canvas: TCanvas; Rect: TRect); overload;
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186 | procedure PaintToBitmap(Bitmap: TBitmap; Rect: TRect); overload;
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187 | procedure LoadFromCanvas(Canvas: TCanvas);
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188 | procedure LoadFromBitmap(Bitmap: TBitmap);
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189 | function GetDataSize: Integer;
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190 | constructor Create(AOwner: TComponent); override;
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191 | destructor Destroy; override;
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192 | property Canvas: TFCanvas read FCanvas;
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193 | property Backend: TBPixmap read FBackend;
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194 | property ColorFormat: TColorFormat read FColorFormat write SetColorFormat;
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195 | property Size: TPoint read FSize write SetSize;
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196 | property Pixels[X, Y: Integer]: IFColor read GetPixel write SetPixel;
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197 | end;
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198 |
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199 | procedure Register;
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200 |
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201 | var
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202 | ColorFormatManager: TColorFormatManager;
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203 |
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204 |
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205 | implementation
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206 |
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207 | uses
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208 | UColorGray1, UColorGray2,UColorGray4, UColorGray8, UColorRGB8, UColorRGBA8,
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209 | UColorRGB565, UColorRGB16;
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210 |
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211 | procedure Register;
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212 | begin
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213 | RegisterComponents('FastGraphics', [TFPixmap]);
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214 | end;
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215 |
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216 | { TFPen }
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217 |
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218 | procedure TFPen.MoveTo(Pos: TPoint);
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219 | begin
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220 | Position := Pos;
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221 | end;
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222 |
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223 | procedure TFPen.LineTo(Pos: TPoint);
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224 | begin
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225 | Canvas.Pixmap.Backend.Line(Position, Pos, (Color as TFColor).Backend);
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226 | Position := Pos;
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227 | end;
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228 |
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229 | { TFCanvas }
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230 |
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231 | constructor TFCanvas.Create;
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232 | begin
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233 | Pen := TFPen.Create;
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234 | Pen.Canvas := Self;
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235 | Brush := TFBrush.Create;
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236 | Brush.Canvas := Self;
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237 | end;
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238 |
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239 | destructor TFCanvas.Destroy;
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240 | begin
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241 | FreeAndNil(Pen);
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242 | FreeAndNil(Brush);
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243 | inherited Destroy;
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244 | end;
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245 |
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246 | { TBColor }
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247 |
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248 | procedure TBColor.SetColorName(ColorName: TColorName);
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249 | begin
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250 | end;
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251 |
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252 | procedure TBColor.SetColor(Color: TColor);
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253 | begin
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254 | end;
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255 |
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256 | procedure TBColor.SetRandom;
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257 | begin
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258 | end;
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259 |
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260 | { TColorFormatManager }
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261 |
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262 | function TColorFormatManager.GetFormat(Index: Integer): TColorFormat;
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263 | begin
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264 | Result := TColorFormat(FFormats[Index]);
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265 | end;
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266 |
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267 | constructor TColorFormatManager.Create;
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268 | begin
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269 | FFormats := TColorFormats.Create;
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270 | end;
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271 |
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272 | destructor TColorFormatManager.Destroy;
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273 | begin
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274 | FreeAndNil(FFormats);
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275 | inherited Destroy;
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276 | end;
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277 |
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278 | function TColorFormatManager.FindByName(Name: string): Integer;
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279 | var
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280 | I: Integer;
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281 | begin
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282 | Result := -1;
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283 | for I := 0 to FFormats.Count - 1 do begin
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284 | if FFormats[I].Name = Name then begin
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285 | Result := I;
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286 | Break;
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287 | end;
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288 | end;
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289 | end;
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290 |
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291 | procedure TColorFormatManager.RegisterFormat(Format: TColorFormatClass);
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292 | begin
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293 | FFormats.Add(Format.Create);
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294 | end;
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295 |
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296 | function TColorFormatManager.FormatCount: Integer;
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297 | begin
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298 | Result := FFormats.Count;
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299 | end;
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300 |
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301 | { TColorFormat }
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302 |
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303 | procedure TColorFormat.AddChannel(Name: string; Position, BitWidth: Integer);
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304 | begin
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305 | SetLength(Channels, Length(Channels) + 1);
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306 | Channels[Length(Channels) - 1].Name := Name;
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307 | Channels[Length(Channels) - 1].Position := Position;
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308 | Channels[Length(Channels) - 1].BitWidth := BitWidth;
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309 | end;
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310 |
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311 | function TColorFormat.GetBackendColor: IBColor;
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312 | begin
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313 | Result := BackendColorClass.Create;
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314 | end;
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315 |
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316 | function TColorFormat.GetBackendImage: TBPixmap;
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317 | begin
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318 | Result := BackendPixmapClass.Create;
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319 | end;
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320 |
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321 | constructor TColorFormat.Create;
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322 | begin
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323 | Name := 'None';
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324 | BitDepth := 0;
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325 | BackendColorClass := TBColor;
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326 | BackendPixmapClass := TBPixmap;
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327 | end;
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328 |
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329 | function TColorFormat.GetChannelStateCount(Channel: Integer): Integer;
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330 | begin
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331 | Result := 1 shl Channels[Channel].BitWidth;
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332 | end;
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333 |
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334 | { TFColor }
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335 |
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336 | procedure TFColor.SetColorFormat(AValue: TColorFormat);
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337 | begin
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338 | if FColorFormat = AValue then Exit;
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339 | FBackend := AValue.GetBackendColor;
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340 | FColorFormat := AValue;
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341 | end;
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342 |
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343 | procedure TFColor.SetColorName(ColorName: TColorName);
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344 | begin
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345 | FBackend.SetColorName(ColorName);
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346 | end;
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347 |
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348 | procedure TFColor.SetRandom;
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349 | begin
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350 | FBackend.SetRandom;
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351 | end;
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352 |
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353 | procedure TFColor.SetColor(Color: TColor);
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354 | begin
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355 | Backend.SetColor(Color);
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356 | end;
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357 |
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358 | constructor TFColor.Create;
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359 | begin
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360 | ColorFormat := ColorFormatManager.GetFormat(0);
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361 | end;
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362 |
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363 | constructor TFColor.Create(ColorFormat: TColorFormat; ColorName: TColorName);
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364 | begin
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365 | Self.ColorFormat := ColorFormat;
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366 | Backend.SetColorName(ColorName);
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367 | end;
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368 |
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369 | constructor TFColor.Create(ColorFormat: TColorFormat; Color: TColor);
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370 | begin
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371 | Self.ColorFormat := ColorFormat;
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372 | Backend.SetColor(Color);
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373 | end;
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374 |
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375 | destructor TFColor.Destroy;
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376 | begin
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377 | FColorFormat := nil;
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378 | inherited Destroy;
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379 | end;
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380 |
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381 | { TBPixmap }
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382 |
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383 | function TBPixmap.GetPixel(X, Y: Integer): IBColor;
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384 | begin
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385 | Result := TBColor.Create;
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386 | end;
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387 |
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388 | procedure TBPixmap.SetPixel(X, Y: Integer; AValue: IBColor);
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389 | begin
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390 | end;
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391 |
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392 | procedure TBPixmap.SetSize(AValue: TPoint);
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393 | begin
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394 | if (FSize.X = AValue.X) and (FSize.Y = AValue.Y) then Exit;
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395 | FSize := AValue;
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396 | end;
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397 |
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398 | procedure TBPixmap.Mirror;
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399 | begin
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400 | end;
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401 |
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402 | procedure TBPixmap.Flip;
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403 | begin
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404 | end;
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405 |
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406 | procedure TBPixmap.Negative;
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407 | begin
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408 | end;
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409 |
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410 | procedure TBPixmap.Fill(Color: IBColor);
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411 | begin
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412 | end;
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413 |
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414 | procedure TBPixmap.Fill(Func: TGetColorPos);
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415 | begin
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416 | end;
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417 |
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418 | procedure TBPixmap.Line(P1, P2: TPoint; Color: IBColor);
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419 | begin
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420 | end;
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421 |
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422 | procedure TBPixmap.PaintToCanvas(Canvas: TCanvas);
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423 | begin
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424 | end;
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425 |
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426 | procedure TBPixmap.PaintToCanvas(Canvas: TCanvas; Rect: TRect);
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427 | begin
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428 | end;
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429 |
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430 | procedure TBPixmap.PaintToBitmap(Bitmap: TBitmap; Rect: TRect);
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431 | begin
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432 | end;
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433 |
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434 | procedure TBPixmap.LoadFromCanvas(Canvas: TCanvas);
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435 | begin
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436 | end;
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437 |
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438 | procedure TBPixmap.LoadFromBitmap(Bitmap: TBitmap);
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439 | begin
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440 | end;
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441 |
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442 | function TBPixmap.GetDataSize: Integer;
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443 | begin
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444 | Result := 0;
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445 | end;
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446 |
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447 | constructor TBPixmap.Create;
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448 | begin
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449 | Size := Point(0, 0);
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450 | end;
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451 |
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452 | { TFPixmap }
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453 |
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454 | procedure TFPixmap.SetColorFormat(AValue: TColorFormat);
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455 | begin
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456 | if FColorFormat = AValue then Exit;
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457 | FBackend.Free;
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458 | FBackend := AValue.GetBackendImage;
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459 | FBackend.Size := FSize;
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460 | FColorFormat := AValue;
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461 | end;
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462 |
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463 | function TFPixmap.FillGetColor(Position: TPoint): IBColor;
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464 | begin
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465 | Result := (FillCallBack(Position, ColorFormat) as TFColor).Backend;
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466 | end;
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467 |
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468 | function TFPixmap.GetPixel(X, Y: Integer): IFColor;
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469 | begin
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470 | Result := TFColor.Create;
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471 | (Result as TFColor).ColorFormat := ColorFormat;
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472 | (Result as TFColor).FBackend := FBackend.Pixels[X, Y];
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473 | end;
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474 |
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475 | procedure TFPixmap.SetPixel(X, Y: Integer; AValue: IFColor);
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476 | begin
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477 | FBackend.Pixels[X, Y] := (AValue as TFColor).FBackend;
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478 | end;
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479 |
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480 | procedure TFPixmap.SetSize(AValue: TPoint);
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481 | begin
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482 | if (FSize.X = AValue.X) and (FSize.Y = AValue.Y) then Exit;
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483 | FSize := AValue;
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484 | FBackend.Size := AValue;
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485 | end;
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486 |
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487 | function TFPixmap.ColorRandom(Position: TPoint; ColorFormat: TColorFormat
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488 | ): IFColor;
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489 | begin
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490 | Result := TFColor.Create;
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491 | (Result as TFColor).ColorFormat := ColorFormat;
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492 | (Result as TFColor).SetRandom;
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493 | end;
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494 |
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495 | procedure TFPixmap.Clear;
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496 | begin
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497 |
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498 | end;
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499 |
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500 | procedure TFPixmap.Flip;
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501 | begin
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502 | FBackend.Flip;
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503 | end;
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504 |
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505 | procedure TFPixmap.Mirror;
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506 | begin
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507 | FBackend.Mirror;
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508 | end;
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509 |
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510 | procedure TFPixmap.Gradient;
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511 | var
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512 | X, Y: Integer;
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513 | Color: IFColor;
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514 | begin
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515 | Color := TFColor.Create;
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516 | (Color as TFColor).ColorFormat := ColorFormat;
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517 | for Y := 0 to Size.Y div 4 - 1 do
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518 | for X := 0 to Size.X - 1 do begin
|
---|
519 | (Color as TFColor).SetColor(RGBToColor(
|
---|
520 | Trunc(X / Size.X * 256),
|
---|
521 | 0,
|
---|
522 | 0
|
---|
523 | ));
|
---|
524 | Pixels[X, Y] := Color;
|
---|
525 | end;
|
---|
526 | for Y := Size.Y div 4 to 2 * Size.Y div 4 - 1 do
|
---|
527 | for X := 0 to Size.X - 1 do begin
|
---|
528 | (Color as TFColor).SetColor(RGBToColor(
|
---|
529 | 0,
|
---|
530 | Trunc(X / Size.X * 256),
|
---|
531 | 0
|
---|
532 | ));
|
---|
533 | Pixels[X, Y] := Color;
|
---|
534 | end;
|
---|
535 | for Y := 2 * Size.Y div 4 to 3 * Size.Y div 4 - 1 do
|
---|
536 | for X := 0 to Size.X - 1 do begin
|
---|
537 | (Color as TFColor).SetColor(RGBToColor(
|
---|
538 | 0,
|
---|
539 | 0,
|
---|
540 | Trunc(X / Size.X * 256)
|
---|
541 | ));
|
---|
542 | Pixels[X, Y] := Color;
|
---|
543 | end;
|
---|
544 | for Y := 3 * Size.Y div 4 to Size.Y - 1 do
|
---|
545 | for X := 0 to Size.X - 1 do begin
|
---|
546 | (Color as TFColor).SetColor(RGBToColor(
|
---|
547 | Trunc(X / Size.X * 256),
|
---|
548 | Trunc(X / Size.X * 256),
|
---|
549 | Trunc(X / Size.X * 256)
|
---|
550 | ));
|
---|
551 | Pixels[X, Y] := Color;
|
---|
552 | end;
|
---|
553 | end;
|
---|
554 |
|
---|
555 | procedure TFPixmap.Negative;
|
---|
556 | begin
|
---|
557 | FBackend.Negative;
|
---|
558 | end;
|
---|
559 |
|
---|
560 | procedure TFPixmap.Random;
|
---|
561 | begin
|
---|
562 | Fill(ColorRandom);
|
---|
563 | end;
|
---|
564 |
|
---|
565 | procedure TFPixmap.Fill(Color: IFColor);
|
---|
566 | begin
|
---|
567 | FBackend.Fill((Color as TFColor).Backend);
|
---|
568 | end;
|
---|
569 |
|
---|
570 | procedure TFPixmap.Fill(Func: TGetColorPos);
|
---|
571 | begin
|
---|
572 | FillCallBack := Func;
|
---|
573 | FBackend.Fill(FillGetColor);
|
---|
574 | end;
|
---|
575 |
|
---|
576 | procedure TFPixmap.PaintToCanvas(Canvas: TCanvas);
|
---|
577 | begin
|
---|
578 | FBackend.PaintToCanvas(Canvas);
|
---|
579 | end;
|
---|
580 |
|
---|
581 | procedure TFPixmap.PaintToCanvas(Canvas: TCanvas; Rect: TRect);
|
---|
582 | begin
|
---|
583 | FBackend.PaintToCanvas(Canvas, Rect);
|
---|
584 | end;
|
---|
585 |
|
---|
586 | procedure TFPixmap.PaintToBitmap(Bitmap: TBitmap; Rect: TRect);
|
---|
587 | begin
|
---|
588 | FBackend.PaintToBitmap(Bitmap, Rect);
|
---|
589 | end;
|
---|
590 |
|
---|
591 | procedure TFPixmap.LoadFromCanvas(Canvas: TCanvas);
|
---|
592 | begin
|
---|
593 | Backend.LoadFromCanvas(Canvas);
|
---|
594 | end;
|
---|
595 |
|
---|
596 | procedure TFPixmap.LoadFromBitmap(Bitmap: TBitmap);
|
---|
597 | begin
|
---|
598 | Backend.LoadFromBitmap(Bitmap);
|
---|
599 | end;
|
---|
600 |
|
---|
601 | function TFPixmap.GetDataSize: Integer;
|
---|
602 | begin
|
---|
603 | Result := FBackend.GetDataSize;
|
---|
604 | end;
|
---|
605 |
|
---|
606 | constructor TFPixmap.Create(AOwner: TComponent);
|
---|
607 | begin
|
---|
608 | inherited;
|
---|
609 | FBackend := TBPixmap.Create;
|
---|
610 | FCanvas := TFCanvas.Create;
|
---|
611 | FCanvas.Pixmap := Self;
|
---|
612 | ColorFormat := ColorFormatManager.GetFormat(0);
|
---|
613 | end;
|
---|
614 |
|
---|
615 | destructor TFPixmap.Destroy;
|
---|
616 | begin
|
---|
617 | FreeAndNil(FCanvas);
|
---|
618 | FreeAndNil(FBackend);
|
---|
619 | inherited Destroy;
|
---|
620 | end;
|
---|
621 |
|
---|
622 |
|
---|
623 | initialization
|
---|
624 |
|
---|
625 | ColorFormatManager := TColorFormatManager.Create;
|
---|
626 | with ColorFormatManager do begin
|
---|
627 | RegisterFormat(TColorFormat);
|
---|
628 | RegisterFormat(TColorFormatGray1);
|
---|
629 | RegisterFormat(TColorFormatGray2);
|
---|
630 | RegisterFormat(TColorFormatGray4);
|
---|
631 | RegisterFormat(TColorFormatGray8);
|
---|
632 | RegisterFormat(TColorFormatRGB8);
|
---|
633 | RegisterFormat(TColorFormatRGBA8);
|
---|
634 | RegisterFormat(TColorFormatRGB565);
|
---|
635 | RegisterFormat(TColorFormatRGB16);
|
---|
636 | end;
|
---|
637 |
|
---|
638 |
|
---|
639 | finalization
|
---|
640 |
|
---|
641 | FreeAndNil(ColorFormatManager);
|
---|
642 |
|
---|
643 |
|
---|
644 | end.
|
---|
645 |
|
---|