1 | {$INCLUDE Switches.inc}
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2 | unit TechTree;
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3 |
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4 | interface
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5 |
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6 | uses
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7 | Dpi.Graphics, Dpi.Forms,
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8 | ScreenTools, LCLIntf, LCLType, SysUtils, Classes, Graphics,
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9 | Controls, Forms, ButtonB, DrawDlg;
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10 |
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11 | type
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12 |
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13 | { TTechTreeDlg }
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14 |
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15 | TTechTreeDlg = class(TDrawDlg)
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16 | CloseBtn: TButtonB;
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17 | procedure FormCreate(Sender: TObject);
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18 | procedure FormDestroy(Sender: TObject);
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19 | procedure FormPaint(Sender: TObject);
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20 | procedure FormShow(Sender: TObject);
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21 | procedure FormMouseDown(Sender: TObject; Button: TMouseButton;
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22 | Shift: TShiftState; X, Y: Integer);
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23 | procedure FormMouseUp(Sender: TObject; Button: TMouseButton;
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24 | Shift: TShiftState; X, Y: Integer);
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25 | procedure FormMouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer);
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26 | procedure CloseBtnClick(Sender: TObject);
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27 | private
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28 | xOffset, yOffset, xDown, yDown: Integer;
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29 | Image: TDpiBitmap;
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30 | Dragging: Boolean;
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31 | end;
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32 |
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33 |
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34 | implementation
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35 |
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36 | uses
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37 | Directories;
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38 |
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39 | {$R *.lfm}
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40 |
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41 | const
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42 | BlackBorder = 4;
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43 | LeftBorder = 72;
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44 | RightBorder = 45;
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45 | TopBorder = 16;
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46 | BottomBorder = 48;
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47 | xStart = 0;
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48 | yStart = 40;
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49 | xPitch = 160;
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50 | yPitch = 90;
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51 | xLegend = 44;
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52 | yLegend = 79;
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53 | yLegendPitch = 32;
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54 |
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55 | function Min(A, B: Integer): Integer;
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56 | begin
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57 | if A < B then
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58 | Result := A
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59 | else
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60 | Result := B;
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61 | end;
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62 |
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63 | function Max(A, B: Integer): Integer;
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64 | begin
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65 | if A > B then
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66 | Result := A
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67 | else
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68 | Result := B;
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69 | end;
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70 |
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71 | procedure TTechTreeDlg.FormCreate(Sender: TObject);
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72 | begin
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73 | InitButtons;
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74 | Image := nil;
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75 | end;
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76 |
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77 | procedure TTechTreeDlg.FormDestroy(Sender: TObject);
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78 | begin
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79 | FreeAndNil(Image);
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80 | end;
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81 |
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82 | procedure TTechTreeDlg.FormPaint(Sender: TObject);
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83 | var
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84 | X, W: Integer;
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85 | begin
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86 | with Canvas do begin
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87 | // black border
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88 | Brush.Color := $000000;
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89 | FillRect(rect(0, 0, BlackBorder, ClientHeight));
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90 | FillRect(rect(BlackBorder, 0, ClientWidth - BlackBorder, BlackBorder));
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91 | FillRect(rect(ClientWidth - BlackBorder, 0, ClientWidth, ClientHeight));
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92 | FillRect(rect(BlackBorder, ClientHeight - BlackBorder,
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93 | ClientWidth - BlackBorder, ClientHeight));
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94 |
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95 | // texturize empty space
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96 | Brush.Color := $FFFFFF;
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97 | if xOffset > 0 then
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98 | FillRectSeamless(Canvas, BlackBorder, BlackBorder, BlackBorder + xOffset,
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99 | ClientHeight - BlackBorder, -BlackBorder - xOffset,
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100 | -BlackBorder - yOffset, Paper);
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101 | if xOffset + Image.width < ClientWidth - 2 * BlackBorder then
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102 | FillRectSeamless(Canvas, BlackBorder + xOffset + Image.width, BlackBorder,
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103 | ClientWidth - BlackBorder, ClientHeight - BlackBorder,
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104 | -BlackBorder - xOffset, -BlackBorder - yOffset, Paper);
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105 | X := Max(BlackBorder, BlackBorder + xOffset);
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106 | W := Min(BlackBorder + xOffset + Image.width, ClientWidth - BlackBorder);
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107 | if yOffset > 0 then
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108 | FillRectSeamless(Canvas, X, BlackBorder, W, BlackBorder + yOffset,
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109 | -BlackBorder - xOffset, -BlackBorder - yOffset, Paper);
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110 | if yOffset + Image.height < ClientHeight - 2 * BlackBorder then
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111 | FillRectSeamless(Canvas, X, BlackBorder + yOffset + Image.height, W,
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112 | ClientHeight - BlackBorder, -BlackBorder - xOffset,
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113 | -BlackBorder - yOffset, Paper);
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114 | end;
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115 | DpiBitBltCanvas(Canvas, Max(BlackBorder, BlackBorder + xOffset),
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116 | Max(BlackBorder, BlackBorder + yOffset),
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117 | Min(Image.width, Min(Image.width + xOffset,
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118 | Min(ClientWidth - 2 * BlackBorder, ClientWidth - 2 * BlackBorder - xOffset))
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119 | ), Min(Image.height, Min(Image.height + yOffset,
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120 | Min(ClientHeight - 2 * BlackBorder, ClientHeight - 2 * BlackBorder -
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121 | yOffset))), Image.Canvas, Max(0, -xOffset),
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122 | Max(0, -yOffset));
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123 | end;
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124 |
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125 | procedure TTechTreeDlg.FormShow(Sender: TObject);
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126 | var
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127 | X, Y, ad: Integer;
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128 | S: string;
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129 | NewWidth: Integer;
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130 | NewHeight: Integer;
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131 | begin
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132 | Caption := Phrases2.Lookup('MENU_ADVTREE');
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133 | if Image = nil then begin
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134 | Image := TDpiBitmap.Create;
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135 | Image.PixelFormat := pf24bit;
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136 | LoadGraphicFile(Image, HomeDir + 'Help' + DirectorySeparator + 'AdvTree.png',
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137 | [gfNoGamma]);
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138 |
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139 | with Image.Canvas do begin
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140 | // Write advance names
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141 | Font.Assign(UniFont[ftSmall]);
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142 | Font.Color := clBlack;
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143 | Brush.Style := bsClear;
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144 | for X := 0 to (Image.Width - xStart) div xPitch do
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145 | for Y := 0 to (Image.Height - yStart) div yPitch do
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146 | begin
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147 | ad := Pixels[xStart + X * xPitch + 10, yStart + Y * yPitch - 1];
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148 | if ad and $FFFF00 = 0 then
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149 | begin
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150 | S := Phrases.Lookup('ADVANCES', ad);
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151 | while TextWidth(S) > 112 do
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152 | Delete(S, Length(S), 1);
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153 | TextOut(xStart + X * xPitch + 2, yStart + Y * yPitch, S);
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154 | Pixels[xStart + X * xPitch + 10, yStart + Y * yPitch - 1]
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155 | := TransparentColor2;
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156 | end;
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157 | end;
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158 |
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159 | // Write legend
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160 | TextOut(xLegend, yLegend, Phrases2.Lookup('ADVTREE_UP0'));
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161 | TextOut(xLegend, yLegend + yLegendPitch, Phrases2.Lookup('ADVTREE_UP1'));
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162 | TextOut(xLegend, yLegend + 2 * yLegendPitch,
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163 | Phrases2.Lookup('ADVTREE_UP2'));
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164 | TextOut(xLegend, yLegend + 3 * yLegendPitch,
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165 | Phrases2.Lookup('ADVTREE_GOV'));
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166 | TextOut(xLegend, yLegend + 4 * yLegendPitch,
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167 | Phrases2.Lookup('ADVTREE_OTHER'));
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168 | end;
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169 |
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170 | Texturize(Image, Paper, TransparentColor2);
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171 | end;
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172 |
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173 | // Fit window to image, center image in window, center window to screen
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174 | NewWidth := Min(DpiScreen.Width - 40, Image.Width + LeftBorder + RightBorder + 2 * BlackBorder);
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175 | NewHeight := Min(DpiScreen.Height - 40, Image.Height + TopBorder + BottomBorder + 2 * BlackBorder);
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176 | BoundsRect := Bounds((DpiScreen.Width - NewWidth) div 2,
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177 | (DpiScreen.Height - NewHeight) div 2,
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178 | NewWidth, NewHeight);
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179 | CloseBtn.Left := width - CloseBtn.width - BlackBorder - 8;
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180 | CloseBtn.Top := BlackBorder + 8;
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181 | xOffset := (ClientWidth - Image.Width + LeftBorder - RightBorder) div 2 -
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182 | BlackBorder;
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183 | yOffset := ClientHeight - 2 * BlackBorder - Image.Height - BottomBorder;
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184 | end;
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185 |
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186 | procedure TTechTreeDlg.FormMouseDown(Sender: TObject; Button: TMouseButton;
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187 | Shift: TShiftState; X, Y: Integer);
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188 | begin
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189 | if Button = mbLeft then
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190 | begin
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191 | Dragging := True;
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192 | xDown := X;
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193 | yDown := Y;
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194 | end;
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195 | end;
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196 |
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197 | procedure TTechTreeDlg.FormMouseUp(Sender: TObject; Button: TMouseButton;
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198 | Shift: TShiftState; X, Y: Integer);
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199 | begin
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200 | Dragging := False;
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201 | end;
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202 |
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203 | procedure TTechTreeDlg.FormMouseMove(Sender: TObject; Shift: TShiftState;
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204 | X, Y: Integer);
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205 | begin
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206 | if Dragging then
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207 | begin
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208 | xOffset := xOffset + X - xDown;
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209 | yOffset := yOffset + Y - yDown;
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210 | xDown := X;
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211 | yDown := Y;
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212 |
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213 | if xOffset > LeftBorder then
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214 | xOffset := LeftBorder;
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215 | if xOffset < ClientWidth - 2 * BlackBorder - Image.width - RightBorder then
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216 | xOffset := ClientWidth - 2 * BlackBorder - Image.width - RightBorder;
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217 | if yOffset > TopBorder then
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218 | yOffset := TopBorder;
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219 | if yOffset < ClientHeight - 2 * BlackBorder - Image.height - BottomBorder
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220 | then
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221 | yOffset := ClientHeight - 2 * BlackBorder - Image.height - BottomBorder;
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222 |
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223 | SmartInvalidate;
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224 | end;
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225 | end;
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226 |
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227 | procedure TTechTreeDlg.CloseBtnClick(Sender: TObject);
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228 | begin
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229 | Close;
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230 | end;
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231 |
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232 | end.
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