Changeset 698 for trunk/ab5.0/ablib/src/Classes/System/Drawing/Rectangle.ab
- Timestamp:
- Mar 31, 2009, 2:09:07 PM (15 years ago)
- File:
-
- 1 edited
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trunk/ab5.0/ablib/src/Classes/System/Drawing/Rectangle.ab
r473 r698 4 4 Namespace Drawing 5 5 6 Class Rectangle 7 Public 8 Sub Rectangle() 9 x = 0 10 y = 0 11 width = 0 12 height = 0 13 End Sub 14 15 Sub Rectangle(x As Long, y As Long, width As Long, height As Long) 16 x = x 17 y = y 18 width = width 19 height = height 20 End Sub 21 22 Sub Rectangle(l As Point, s As Size) 23 x = l.X 24 y = l.Y 25 width = s.Height 26 height = s.Height 27 End Sub 28 29 Sub Rectangle(ByRef r As RECT) 30 x = r.left 31 y = r.top 32 width = r.right - r.left 33 height = r.top - r.bottom 34 End Sub 35 36 Function Location() As Point 37 Location = New Point(x, y) 38 End Function 39 40 Sub Location(point As Point) 41 x = point.X 42 y = point.Y 43 End Sub 44 45 Function Size() As Size 46 Size = New Size(width, height) 47 End Function 48 49 Sub Size(size As Size) 50 width = size.Width 51 height = size.Height 52 End Sub 53 54 Function X() As Long 55 X = x 56 End Function 57 58 Sub X(value As Long) 59 x = value 60 End Sub 61 62 Function Y() As Long 63 Y = y 64 End Function 65 66 Sub Y(value As Long) 67 y = value 68 End Sub 69 70 Function Width() As Long 71 Width = width 72 End Function 73 74 Sub Width(value As Long) 75 width = value 76 End Sub 77 78 Function Height() As Long 79 Height = height 80 End Function 81 82 Sub Height(value As Long) 83 height = value 84 End Sub 85 86 Function Left() As Long 87 Left = X 88 End Function 89 90 Function Top() As Long 91 Top = Y 92 End Function 93 94 Function Right() As Long 95 Right = X + Width 96 End Function 97 98 Function Bottom() As Long 99 Bottom = Y + Height 100 End Function 101 102 Function IsEmpty() As Boolean 103 Return Width <= 0 Or Height <= 0 104 End Function 105 106 Function Operator ==(rc As Rectangle) As Boolean 107 Return Equals(rc) 108 End Function 109 110 Function Operator <>(rc As Rectangle) As Boolean 111 Return (Not Equals(rc)) 112 End Function 113 114 Function Operator () As RectangleF 115 Return New RectangleF(x, y, width, height) 116 End Function 117 118 Function Equals(rc As Rectangle) As Boolean 119 Return X = rc.X And Y = rc.Y And Width = rc.Width And Height = rc.Height 120 End Function 121 122 Override Function GetHashCode() As Long 123 Return x As DWord Xor _System_BSwap(y As DWord) Xor width As DWord Xor _System_BSwap(height As DWord) 124 End Function 125 126 Static Function FromLTRB(l As Long, t As Long, r As Long, b As Long) As Rectangle 127 return New Rectangle(l, t, r - l, b - t) 128 End Function 129 130 Function Contains(x As Long, y As Long) As Boolean 131 Return x >= X And x < X + Width And y >= Y And y < Y + Height 132 End Function 133 134 Function Contains(pt As Point) As Boolean 135 Return Contains(pt.X, pt.Y) 136 End Function 137 138 Function Contains(rc As Rectangle) As Boolean 139 Return X <= rc.X And rc.Right <= Right And Y <= rc.Y And rc.Bottom <= Bottom 140 End Function 141 142 Sub Inflate(dx As Long, dy As Long) 143 x -= dx 144 y -= dy 145 width += dx + dx 146 height += dy + dy 147 End Sub 148 149 Sub Inflate(sz As Size) 150 Inflate(sz.Width, sz.Height) 151 End Sub 152 153 Static Function Inflate(rc As Rectangle, x As Long, y As Long) As Rectangle 154 Inflate = New Rectangle(rc.X, rc.Y, rc.Width, rc.Height) 155 Inflate.Inflate(x, y) 156 End Function 157 158 Sub Intersect(rect As Rectangle) 159 Dim r = Rectangle.Intersect(This, rect) 160 x = r.x 161 y = r.y 162 width = r.width 163 height = r.height 164 End Sub 165 166 Static Function Intersect(a As Rectangle, ByRef b As Rectangle) As Rectangle 167 Dim right As Long, bottom As Long, left As Long, top As Long 168 right = System.Math.Min(a.Right, b.Right) 169 bottom = System.Math.Min(a.Bottom, b.Bottom) 170 left = System.Math.Min(a.Left, b.Left) 171 top = System.Math.Min(a.Top, b.Top) 172 Return Rectangle.FromLTRB(left, top, right, bottom) 173 End Function 174 175 Function IntersectsWith(rc As Rectangle) As Boolean 176 Return Left < rc.Right And _ 177 Top < rc.Bottom And _ 178 Right > rc.Left And _ 179 Bottom > rc.Top 180 End Function 181 182 Static Function Union(a As Rectangle, b As Rectangle) As Rectangle 183 Dim right As Long, bottom As Long, left As Long, top As Long 184 right = System.Math.Max(a.Right(), b.Right()) 185 bottom = System.Math.Max(a.Bottom(), b.Bottom()) 186 left = System.Math.Max(a.Left(), b.Left()) 187 top = System.Math.Max(a.Top(), b.Top()) 188 Return FromLTRB(left, top, right, bottom) 189 End Function 190 191 Sub Offset(pt As Point) 192 Offset(pt.X, pt.Y) 193 End Sub 194 195 Sub Offset(dx As Long, dy As Long) 196 x += dx 197 y += dy 198 End Sub 199 200 Static Function Ceiling(rcf As RectangleF) As Rectangle 201 Dim r As Rectangle( 202 Math.Ceiling(rcf.X) As Long, 203 Math.Ceiling(rcf.Y) As Long, 204 Math.Ceiling(rcf.Width) As Long, 205 Math.Ceiling(rcf.Height) As Long) 206 Return r 207 End Function 208 209 Static Function Round(rcf As RectangleF) As Rectangle 210 Dim r As Rectangle( 211 Math.Round(rcf.X) As Long, 212 Math.Round(rcf.Y) As Long, 213 Math.Round(rcf.Width) As Long, 214 Math.Round(rcf.Height) As Long) 215 Return r 216 End Function 217 218 Static Function Truncate(rcf As RectangleF) As Rectangle 219 Dim r As Rectangle( 220 Math.Truncate(rcf.X) As Long, 221 Math.Truncate(rcf.Y) As Long, 222 Math.Truncate(rcf.Width) As Long, 223 Math.Truncate(rcf.Height) As Long) 224 Return r 225 End Function 226 227 Function ToRECT() As RECT 228 With ToRECT 229 .left = x 230 .top = y 231 .right = x + width 232 .bottom = y + height 233 End With 234 End Function 235 236 Public 237 x As Long 238 y As Long 239 width As Long 240 height As Long 241 End Class 6 Type Rectangle 7 X As Long 8 Y As Long 9 Width As Long 10 Height As Long 11 End Type 242 12 243 13 End Namespace
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