1 | unit ButtonN;
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2 |
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3 | interface
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4 |
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5 | uses
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6 | Classes, LCLIntf, LCLType, ScreenTools,
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7 | {$IFDEF DPI}Dpi.Graphics, Dpi.Controls{$ELSE}Graphics, Controls{$ENDIF};
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8 |
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9 | type
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10 | TButtonN = class(TGraphicControl)
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11 | constructor Create(AOwner: TComponent); override;
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12 | private
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13 | FPossible, FLit: Boolean;
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14 | FGraphic, FMask, FBackGraphic: TBitmap;
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15 | FIndex, BackIndex: Integer;
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16 | FSmartHint: string;
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17 | ChangeProc: TNotifyEvent;
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18 | procedure SetPossible(X: Boolean);
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19 | procedure SetLit(X: Boolean);
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20 | procedure SetIndex(X: Integer);
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21 | procedure SetSmartHint(X: string);
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22 | protected
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23 | procedure Paint; override;
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24 | procedure MouseDown(Button: TMouseButton; Shift: TShiftState;
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25 | X, Y: Integer); override;
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26 | published
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27 | property Possible: Boolean read FPossible write SetPossible;
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28 | property Lit: Boolean read FLit write SetLit;
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29 | property SmartHint: string read FSmartHint write SetSmartHint;
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30 | property Graphic: TBitmap read FGraphic write FGraphic;
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31 | property Mask: TBitmap read FMask write FMask;
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32 | property BackGraphic: TBitmap read FBackGraphic write FBackGraphic;
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33 | property ButtonIndex: Integer read FIndex write SetIndex;
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34 | property OnClick: TNotifyEvent read ChangeProc write ChangeProc;
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35 | end;
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36 |
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37 | procedure Register;
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38 |
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39 |
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40 | implementation
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41 |
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42 | procedure Register;
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43 | begin
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44 | RegisterComponents('C-evo', [TButtonN]);
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45 | end;
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46 |
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47 | constructor TButtonN.Create(AOwner: TComponent);
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48 | begin
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49 | inherited;
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50 | ShowHint := True;
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51 | FGraphic := nil;
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52 | FBackGraphic := nil;
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53 | FPossible := True;
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54 | FLit := False;
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55 | FIndex := -1;
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56 | ChangeProc := nil;
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57 | SetBounds(0, 0, 42, 42);
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58 | end;
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59 |
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60 | procedure TButtonN.Paint;
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61 | begin
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62 | with Canvas do
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63 | begin
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64 | if FGraphic <> nil then
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65 | begin
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66 | BitBltCanvas(Canvas, 1, 1, 40, 40, FBackGraphic.Canvas,
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67 | 1 + 80 * BackIndex + 40 * Byte(FPossible and FLit), 176);
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68 | if FPossible then
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69 | begin
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70 | BitBltCanvas(Canvas, 3, 3, 36, 36, FMask.Canvas,
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71 | 195 + 37 * (FIndex mod 3), 21 + 37 * (FIndex div 3), SRCAND);
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72 | BitBltCanvas(Canvas, 3, 3, 36, 36, FGraphic.Canvas,
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73 | 195 + 37 * (FIndex mod 3), 21 + 37 * (FIndex div 3), SRCPAINT);
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74 | end;
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75 | end;
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76 | MoveTo(0, 41);
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77 | Pen.Color := $B0B0B0;
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78 | LineTo(0, 0);
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79 | LineTo(41, 0);
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80 | Pen.Color := $FFFFFF;
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81 | LineTo(41, 41);
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82 | LineTo(0, 41);
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83 | end;
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84 | end;
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85 |
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86 | procedure TButtonN.MouseDown(Button: TMouseButton; Shift: TShiftState;
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87 | X, Y: Integer);
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88 | begin
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89 | if FPossible and (Button = TMouseButton.mbLeft) and (@ChangeProc <> nil) then
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90 | ChangeProc(Self);
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91 | end;
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92 |
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93 | procedure TButtonN.SetPossible(X: Boolean);
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94 | begin
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95 | if X <> FPossible then
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96 | begin
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97 | FPossible := X;
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98 | if X then
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99 | Hint := FSmartHint
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100 | else
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101 | Hint := '';
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102 | Invalidate;
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103 | end;
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104 | end;
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105 |
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106 | procedure TButtonN.SetLit(X: Boolean);
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107 | begin
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108 | if X <> FLit then
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109 | begin
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110 | FLit := X;
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111 | Invalidate;
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112 | end;
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113 | end;
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114 |
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115 | procedure TButtonN.SetIndex(X: Integer);
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116 | begin
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117 | if X <> FIndex then
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118 | begin
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119 | FIndex := X;
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120 | if X < 6 then
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121 | BackIndex := 1
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122 | else
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123 | BackIndex := 0;
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124 | Invalidate;
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125 | end;
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126 | end;
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127 |
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128 | procedure TButtonN.SetSmartHint(X: string);
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129 | begin
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130 | if X <> FSmartHint then
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131 | begin
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132 | FSmartHint := X;
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133 | if FPossible then
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134 | Hint := X;
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135 | end;
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136 | end;
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137 |
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138 | end.
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