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UtilsGraphic.xml
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<?xml version="1.0" encoding="UTF-8"?>
<RBProject version="2024r1.1" FormatVersion="2" MinIDEVersion="20210300">
<block type="Module" ID="1567812713">
<ObjName>UtilsGraphic</ObjName>
<ObjContainerID>1471210957</ObjContainerID>
<IsClass>0</IsClass>
<ItemFlags>1</ItemFlags>
<IsInterface>0</IsInterface>
<Compatibility></Compatibility>
<Method>
<ItemName>Gray</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>752052223</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function Gray(x As Integer = 128) As Color</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' This is a function similar to RGB(), HSV() and CMY(), but only takes a single value</SourceLine>
<SourceLine>' to create a Gray color. </SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' This is more of a conveniance function, and may cost more CPU time than using </SourceLine>
<SourceLine>' the regular RGB() function. You should only use this function if you write a </SourceLine>
<SourceLine>' single calculation that needs to be applied to all three parts of RGB, and don't store</SourceLine>
<SourceLine>' the result in another local variable.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Return RGB(x, x, x)</SourceLine>
<SourceLine>End Function</SourceLine>
</ItemSource>
<TextEncoding>134217984</TextEncoding>
<AliasName></AliasName>
<ItemFlags>0</ItemFlags>
<IsShared>0</IsShared>
<ItemParams>x As Integer = 128</ItemParams>
<ItemResult>Color</ItemResult>
</Method>
<Method>
<ItemName>IsGray</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>1805172735</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function IsGray(Extends c As Color, tolerance As Double = 0.0) As Boolean</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' Tests to see if a Color is gray (within a percentage defined by "tolerance")</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If c.Saturation <= tolerance Then </SourceLine>
<SourceLine>Return True </SourceLine>
<SourceLine>Else </SourceLine>
<SourceLine>Return False</SourceLine>
<SourceLine>End If</SourceLine>
<SourceLine></SourceLine>
<SourceLine>End Function</SourceLine>
</ItemSource>
<TextEncoding>134217984</TextEncoding>
<AliasName></AliasName>
<ItemFlags>0</ItemFlags>
<IsShared>0</IsShared>
<ItemParams>Extends c As Color, tolerance As Double = 0.0</ItemParams>
<ItemResult>Boolean</ItemResult>
</Method>
<Method>
<ItemName>IsGray</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>889450495</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function IsGray(p As Picture, tolerance As Double = 0.0) As Boolean</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' Tests to see if a Picture is gray (within a percentage defined by "tolerance")</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' This function loops through all of the pixels in the picture and will return FALSE</SourceLine>
<SourceLine>' as soon as the first pixel is determined to be outside of the tolerance. Only</SourceLine>
<SourceLine>' Pictures which evaluate as TRUE will have all pixels compared.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine></SourceLine>
<SourceLine></SourceLine>
<SourceLine>If (p Is Nil) Then Return False</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Dim g As Graphics</SourceLine>
<SourceLine>Dim x, y, xMax, yMax As Integer</SourceLine>
<SourceLine>Dim r As RGBSurface</SourceLine>
<SourceLine></SourceLine>
<SourceLine>// Determine if we can use Graphics (fast) or RGBSurface (faster)</SourceLine>
<SourceLine>If (p.Depth >= 16) And Not (p.RGBSurface Is Nil) Then</SourceLine>
<SourceLine>r = p.RGBSurface</SourceLine>
<SourceLine>Else</SourceLine>
<SourceLine>g = p.Graphics</SourceLine>
<SourceLine>End If</SourceLine>
<SourceLine></SourceLine>
<SourceLine>xMax = p.Width - 1</SourceLine>
<SourceLine>yMax = p.Height - 1</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If Not (r Is Nil) Then</SourceLine>
<SourceLine>For y = 0 To yMax</SourceLine>
<SourceLine>#pragma BackgroundTasks False</SourceLine>
<SourceLine>For x = 0 To xMax</SourceLine>
<SourceLine>If (r.Pixel(x, y).Saturation > tolerance) Then Return False</SourceLine>
<SourceLine>Next</SourceLine>
<SourceLine>#pragma BackgroundTasks True</SourceLine>
<SourceLine>Next</SourceLine>
<SourceLine>Else</SourceLine>
<SourceLine>For y = 0 To yMax</SourceLine>
<SourceLine>#pragma BackgroundTasks False</SourceLine>
<SourceLine>For x = 0 To xMax</SourceLine>
<SourceLine>If (g.Pixel(x, y).Saturation > tolerance) Then Return False</SourceLine>
<SourceLine>Next</SourceLine>
<SourceLine>#pragma BackgroundTasks True</SourceLine>
<SourceLine>Next</SourceLine>
<SourceLine>End If</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Return True</SourceLine>
<SourceLine>End Function</SourceLine>
</ItemSource>
<TextEncoding>134217984</TextEncoding>
<AliasName></AliasName>
<ItemFlags>1</ItemFlags>
<IsShared>0</IsShared>
<ItemParams>p As Picture, tolerance As Double = 0.0</ItemParams>
<ItemResult>Boolean</ItemResult>
</Method>
<Method>
<ItemName>HexValue</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>1436925951</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function HexValue(Extends c As Color) As String</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' Returns a string with the color formated in its web Hex format like FFFFFF.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' The variant string value formats a color as "&h000000", so we take advantage of </SourceLine>
<SourceLine>' that feature and clean up the output so that it is standard web format.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Dim v As Variant = c</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Return Right(v, 6)</SourceLine>
<SourceLine></SourceLine>
<SourceLine>End Function</SourceLine>
</ItemSource>
<TextEncoding>134217984</TextEncoding>
<AliasName></AliasName>
<ItemFlags>0</ItemFlags>
<IsShared>0</IsShared>
<ItemParams>Extends c As Color</ItemParams>
<ItemResult>String</ItemResult>
</Method>
<Method>
<ItemName>Copy</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>1849694207</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function Copy(Extends p As Picture, force32Bit As Boolean = False) As Picture</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' Since you often want to modify copies of pictures, this function makes</SourceLine>
<SourceLine>' it easy to create a new picture that duplicates the pixel values of the </SourceLine>
<SourceLine>' original picture. </SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' To make this function compatible with masks, we need to do a little</SourceLine>
<SourceLine>' extra work to extract the RGB data from the Mask. We need to first</SourceLine>
<SourceLine>' make a new picture to contain a copy of the mask. Then we need to</SourceLine>
<SourceLine>' clear the mask in the *original* picture by filling the mask with black.</SourceLine>
<SourceLine>' Yes, this modifies the original, but we have no choice and we will</SourceLine>
<SourceLine>' restore the mask at the end of the function.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' Please note that this function does not currently duplicate the Object2D</SourceLine>
<SourceLine>' instead, the same Object2D classes are linked to the copied picture.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Dim mask As Picture</SourceLine>
<SourceLine>Dim gOriginalMask As Graphics</SourceLine>
<SourceLine>Dim copy As Picture</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If (p Is Nil) Then Return Nil // there is nothing to do, so return</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Dim hasMask As Boolean = p.HasMask</SourceLine>
<SourceLine>If hasMask Then</SourceLine>
<SourceLine>mask = New Picture(p.Width, p.Height, 32) // create temp mask picture</SourceLine>
<SourceLine>mask.Graphics.DrawPicture(p.Mask, 0, 0) // copy the mask</SourceLine>
<SourceLine>gOriginalMask = p.Mask.Graphics // get direct graphics object for speed</SourceLine>
<SourceLine>gOriginalMask.ForeColor = Color.Black // clear with black</SourceLine>
<SourceLine>gOriginalMask.FillRect(0, 0, gOriginalMask.Width, gOriginalMask.Height)</SourceLine>
<SourceLine>End If</SourceLine>
<SourceLine></SourceLine>
<SourceLine>// now we create the new picture copy object and draw 'p'</SourceLine>
<SourceLine>If force32Bit Then</SourceLine>
<SourceLine>copy = New Picture(p.Width, p.Height, 32)</SourceLine>
<SourceLine>Else</SourceLine>
<SourceLine>copy = New Picture(p.Width, p.Height, p.Depth)</SourceLine>
<SourceLine>End If</SourceLine>
<SourceLine></SourceLine>
<SourceLine>copy.Graphics.DrawPicture(p, 0, 0)</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If hasMask Then // draw the mask</SourceLine>
<SourceLine>copy.Mask.Graphics.DrawPicture(mask, 0, 0)</SourceLine>
<SourceLine>gOriginalMask.DrawPicture(mask, 0, 0) // restore the original mask to 'p'</SourceLine>
<SourceLine>End If</SourceLine>
<SourceLine></SourceLine>
<SourceLine>// now copy other variables of "p"</SourceLine>
<SourceLine>copy.HorizontalResolution = p.HorizontalResolution</SourceLine>
<SourceLine>copy.VerticalResolution = p.VerticalResolution</SourceLine>
<SourceLine>copy.Objects = p.Objects</SourceLine>
<SourceLine>copy.Transparent = p.Transparent</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Return copy</SourceLine>
<SourceLine></SourceLine>
<SourceLine>End Function</SourceLine>
</ItemSource>
<TextEncoding>134217984</TextEncoding>
<AliasName></AliasName>
<ItemFlags>0</ItemFlags>
<IsShared>0</IsShared>
<ItemParams>Extends p As Picture, force32Bit As Boolean = False</ItemParams>
<ItemResult>Picture</ItemResult>
</Method>
<Method>
<ItemName>Darken</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>1612857343</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function Darken(p As Picture, opacity As Double) As Picture</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' This function creates a dark version of a picture such as you</SourceLine>
<SourceLine>' would see for a button that is being clicked. This function</SourceLine>
<SourceLine>' creates this effect by overlaying a partly transparent black picture</SourceLine>
<SourceLine>' on top of the duplicated picture.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' The picture 'trans' is defined as Static so that it can be cached to</SourceLine>
<SourceLine>' reduce the overhead for frequent calls to the function. To be</SourceLine>
<SourceLine>' compatible with REALbasic 5.5 and earlier, change this to DIM.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If (p Is Nil) Then Return Nil // nothing to do, so return Nil</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Static trans As Picture</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If (trans Is Nil) Then</SourceLine>
<SourceLine>trans = New Picture(1, 1, 32)</SourceLine>
<SourceLine>trans.Graphics.Pixel(0, 0) = &c000000</SourceLine>
<SourceLine>End If</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Dim temp As Picture = p.Copy</SourceLine>
<SourceLine></SourceLine>
<SourceLine>trans.Mask.Graphics.Pixel(0, 0) = Gray(255 * (1.0 - opacity))</SourceLine>
<SourceLine>temp.Graphics.DrawPicture(trans, 0, 0, temp.Width, temp.Height, 0, 0, 1, 1)</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Return temp</SourceLine>
<SourceLine></SourceLine>
<SourceLine>End Function</SourceLine>
</ItemSource>
<TextEncoding>134217984</TextEncoding>
<AliasName></AliasName>
<ItemFlags>1</ItemFlags>
<IsShared>0</IsShared>
<ItemParams>p As Picture, opacity As Double</ItemParams>
<ItemResult>Picture</ItemResult>
</Method>
<Method>
<ItemName>Lighten</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>1955340287</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function Lighten(p As Picture, opacity As Double) As Picture</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' This function creates a lightened version of a picture such as you</SourceLine>
<SourceLine>' would see for a button that is being disabled. This function</SourceLine>
<SourceLine>' creates this effect by overlaying a partly transparent white picture</SourceLine>
<SourceLine>' on top of the duplicated picture.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' The picture 'trans' is defined as Static so that it can be cached to</SourceLine>
<SourceLine>' reduce the overhead for frequent calls to the function. To be</SourceLine>
<SourceLine>' compatible with REALbasic 5.5 and earlier, change this to DIM.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If (p Is Nil) Then Return Nil // nothing to do, so return Nil</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Static trans As Picture</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If (trans Is Nil) Then</SourceLine>
<SourceLine>trans = New Picture(1, 1, 32)</SourceLine>
<SourceLine>trans.Graphics.Pixel(0, 0) = &cFFFFFF</SourceLine>
<SourceLine>End If</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Dim temp As Picture = p.Copy</SourceLine>
<SourceLine></SourceLine>
<SourceLine>trans.Mask.Graphics.Pixel(0, 0) = Gray(255 * (1.0 - opacity))</SourceLine>
<SourceLine>temp.Graphics.DrawPicture(trans, 0, 0, temp.Width, temp.Height, 0, 0, 1, 1)</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Return temp</SourceLine>
<SourceLine>End Function</SourceLine>
</ItemSource>
<TextEncoding>134217984</TextEncoding>
<AliasName></AliasName>
<ItemFlags>1</ItemFlags>
<IsShared>0</IsShared>
<ItemParams>p As Picture, opacity As Double</ItemParams>
<ItemResult>Picture</ItemResult>
</Method>
<Method>
<ItemName>Blend</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>1376733183</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function Blend(top As Color, base As Color, opacity As Double) As Color</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' This function blends two Color values and has a similar effect as blending a picture</SourceLine>
<SourceLine>' with a mask. The opacity parameter refers to the transparency value of the "top" </SourceLine>
<SourceLine>' pixel... and works very similar to Photoshop's transparency. The max is 1.0 and is </SourceLine>
<SourceLine>' fully opaque, whereas 0.0 is fully transparent.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' NOTE: the function overhead is too high to make this effective in a loop (see Gradiant)</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' Returns the blended Color.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If (opacity > 1.0) Then opacity = 1.0</SourceLine>
<SourceLine>Dim inver As Double = 1.0 - opacity</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Return RGB( _</SourceLine>
<SourceLine>(top.Red * opacity) + (base.Red * inver), _</SourceLine>
<SourceLine>(top.Green * opacity) + (base.Green * inver), _</SourceLine>
<SourceLine>(top.Blue * opacity) + (base.Blue * inver) _</SourceLine>
<SourceLine>)</SourceLine>
<SourceLine>End Function</SourceLine>
</ItemSource>
<TextEncoding>134217984</TextEncoding>
<AliasName></AliasName>
<ItemFlags>1</ItemFlags>
<IsShared>0</IsShared>
<ItemParams>top As Color, base As Color, opacity As Double</ItemParams>
<ItemResult>Color</ItemResult>
</Method>
<Method>
<ItemName>Multiply</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>732207103</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function Multiply(top As Color, base As Color, opacity As Double = 1.0) As Color</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' This function blends two Color values by "multiplying" their perceived values </SourceLine>
<SourceLine>' and is very common in traditional graphics applications. This function has the</SourceLine>
<SourceLine>' opposite effect of the Screen() function.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' The opacity parameter refers to the transparency value of the "top" pixel... and </SourceLine>
<SourceLine>' works very similar to Photoshop's transparency. The max is 1.0 and is fully opaque, </SourceLine>
<SourceLine>' whereas 0.0 is fully transparent.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' NOTE: the function overhead is too high to make this effective in a loop (see Gradiant)</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' Returns the blended Color.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If (opacity < 1.0) Then</SourceLine>
<SourceLine>Return CMY( _</SourceLine>
<SourceLine>Min(base.Cyan + top.Cyan, 1.0), _</SourceLine>
<SourceLine>Min(base.Magenta + top.Magenta, 1.0), _</SourceLine>
<SourceLine>Min(base.Yellow + top.Yellow, 1.0) _</SourceLine>
<SourceLine>)</SourceLine>
<SourceLine>Else</SourceLine>
<SourceLine>Return CMY( _</SourceLine>
<SourceLine>Min(base.Cyan + (top.Cyan * opacity), 1.0), _</SourceLine>
<SourceLine>Min(base.Magenta + (top.Magenta * opacity), 1.0), _</SourceLine>
<SourceLine>Min(base.Yellow + (top.Yellow * opacity), 1.0) _</SourceLine>
<SourceLine>)</SourceLine>
<SourceLine>End If</SourceLine>
<SourceLine></SourceLine>
<SourceLine>End Function</SourceLine>
</ItemSource>
<TextEncoding>134217984</TextEncoding>
<AliasName></AliasName>
<ItemFlags>1</ItemFlags>
<IsShared>0</IsShared>
<ItemParams>top As Color, base As Color, opacity As Double = 1.0</ItemParams>
<ItemResult>Color</ItemResult>
</Method>
<Method>
<ItemName>Screen</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>1273354239</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function Screen(top As Color, base As Color, opacity As Double = 1.0) As Color</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' This function blends two Color values by "screening" their perceived values</SourceLine>
<SourceLine>' and is very common in traditional graphics applications. This function has the</SourceLine>
<SourceLine>' opposite effect of the Multiply() function.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' The opacity parameter refers to the transparency value of the "top" pixel... and</SourceLine>
<SourceLine>' works very similar to Photoshop's transparency. The max is 1.0 and is fully opaque,</SourceLine>
<SourceLine>' whereas 0.0 is fully transparent.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' NOTE: the function overhead is too high to make this effective in a loop (see Gradiant)</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' Returns the blended Color.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If (opacity < 1.0) Then</SourceLine>
<SourceLine>Return RGB( _</SourceLine>
<SourceLine>Min(base.Red + top.Red, 255), _</SourceLine>
<SourceLine>Min(base.Green + top.Green, 255), _</SourceLine>
<SourceLine>Min(base.Blue + top.Blue, 255) _</SourceLine>
<SourceLine>)</SourceLine>
<SourceLine>Else</SourceLine>
<SourceLine>Return RGB( _</SourceLine>
<SourceLine>Min(base.Red + (top.Red * opacity), 255), _</SourceLine>
<SourceLine>Min(base.Green + (top.Green * opacity), 255), _</SourceLine>
<SourceLine>Min(base.Blue + (top.Blue * opacity), 255) _</SourceLine>
<SourceLine>)</SourceLine>
<SourceLine>End If</SourceLine>
<SourceLine></SourceLine>
<SourceLine>End Function</SourceLine>
</ItemSource>
<TextEncoding>134217984</TextEncoding>
<AliasName></AliasName>
<ItemFlags>1</ItemFlags>
<IsShared>0</IsShared>
<ItemParams>top As Color, base As Color, opacity As Double = 1.0</ItemParams>
<ItemResult>Color</ItemResult>
</Method>
<Method>
<ItemName>Gradiant</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>473325567</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function Gradiant(front As Color, back As Color, elements As Double) As Color()</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' This function returns an array of colors (size of elements) smoothly blended from two </SourceLine>
<SourceLine>' original source colors.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' For blending only a single pair of colors, use the Blend() function instead.</SourceLine>
<SourceLine>' </SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Dim grad(0) As Color</SourceLine>
<SourceLine>Dim f(2) As Integer</SourceLine>
<SourceLine>Dim b(2) As Integer</SourceLine>
<SourceLine>Dim r, i As Double</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If elements <= 0 Then</SourceLine>
<SourceLine>// cannot return an empty array, so return blended color</SourceLine>
<SourceLine>grad(0) = Blend(front, back, 0.5)</SourceLine>
<SourceLine>Else</SourceLine>
<SourceLine>// prefetch the individual color parts</SourceLine>
<SourceLine>f(0) = front.Red</SourceLine>
<SourceLine>f(1) = front.Green</SourceLine>
<SourceLine>f(2) = front.Blue</SourceLine>
<SourceLine>b(0) = back.Red</SourceLine>
<SourceLine>b(1) = back.Green</SourceLine>
<SourceLine>b(2) = back.Blue</SourceLine>
<SourceLine>Redim grad(elements)</SourceLine>
<SourceLine>#pragma BackgroundTasks False</SourceLine>
<SourceLine>For k As Integer = 0 To elements</SourceLine>
<SourceLine>r = (k * 1.0) / elements</SourceLine>
<SourceLine>i = 1.0 - r</SourceLine>
<SourceLine>grad(k) = RGB((f(0) * r) + (b(0) * i), (f(1) * r) + (b(1) * i), (f(2) * r) + (b(2) * i))</SourceLine>
<SourceLine>Next</SourceLine>
<SourceLine>#pragma BackgroundTasks True</SourceLine>
<SourceLine>End If</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Return grad</SourceLine>
<SourceLine></SourceLine>
<SourceLine>End Function</SourceLine>
</ItemSource>
<TextEncoding>134217984</TextEncoding>
<AliasName></AliasName>
<ItemFlags>1</ItemFlags>
<IsShared>0</IsShared>
<ItemParams>front As Color, back As Color, elements As Double</ItemParams>
<ItemResult>Color()</ItemResult>
</Method>
<Method>
<ItemName>Desaturate</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>814682111</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function Desaturate(Extends c As Color) As Color</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' This function returns a grayscale color based on the luminosity of the source color</SourceLine>
<SourceLine>' and uses the same formula as Luminance().</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Dim x As Integer = ((c.red * 0.299) + (c.green * 0.587) + (c.blue * 0.114))</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Return RGB(x, x, x)</SourceLine>
<SourceLine></SourceLine>
<SourceLine></SourceLine>
<SourceLine>End Function</SourceLine>
</ItemSource>
<TextEncoding>134217984</TextEncoding>
<AliasName></AliasName>
<ItemFlags>0</ItemFlags>
<IsShared>0</IsShared>
<ItemParams>Extends c As Color</ItemParams>
<ItemResult>Color</ItemResult>
</Method>
<Method>
<ItemName>YUV</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>1055240191</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function YUV(Y As Integer, U As Integer, V As Integer) As Color</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' YUV is a colorspace most commonly used in video.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' Y is the luminance (absolute white to absolute black), U is the blending between</SourceLine>
<SourceLine>' blue and yellow, and V is the blending between red and cyan. The human eye is </SourceLine>
<SourceLine>' less sensitive to colour variations than to intensity variations. YUV allows the </SourceLine>
<SourceLine>' encoding of luminance (Y) information at full bandwidth and chrominance (UV) </SourceLine>
<SourceLine>' information at reduced bandwidth. Another advantage is that YUV provides is</SourceLine>
<SourceLine>' that the Luminance component provides a very good grayscale resprentation of </SourceLine>
<SourceLine>' the color... with several functions in GraphicUtils dependant on this colorspace.</SourceLine>
<SourceLine>' </SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Dim R, G, B As Integer</SourceLine>
<SourceLine></SourceLine>
<SourceLine>R = Y + (1.4075 * (V - 128))</SourceLine>
<SourceLine>G = Y - (0.3455 * (U - 128) - (0.7169 * (V - 128)))</SourceLine>
<SourceLine>B = Y + (1.7790 * (U - 128))</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Return RGB(R, G, B)</SourceLine>
<SourceLine></SourceLine>
<SourceLine>End Function</SourceLine>
</ItemSource>
<TextEncoding>134217984</TextEncoding>
<AliasName></AliasName>
<ItemFlags>0</ItemFlags>
<IsShared>0</IsShared>
<ItemParams>Y As Integer, U As Integer, V As Integer</ItemParams>
<ItemResult>Color</ItemResult>
</Method>
<Method>
<ItemName>ChromaU</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>557436927</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function ChromaU(Extends c As Color) As Integer</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' Returns the "U" component of YUV</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Return ((c.red * -0.169) + (c.green * -0.332) + (c.blue * 0.500)) + 128.0</SourceLine>
<SourceLine></SourceLine>
<SourceLine>End Function</SourceLine>
</ItemSource>
<TextEncoding>134217984</TextEncoding>
<AliasName></AliasName>
<ItemFlags>0</ItemFlags>
<IsShared>0</IsShared>
<ItemParams>Extends c As Color</ItemParams>
<ItemResult>Integer</ItemResult>
</Method>
<Method>
<ItemName>ChromaV</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>1539325951</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function ChromaV(Extends c As Color) As Integer</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' Returns the "V" component of YUV</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Return ((c.red * 0.500) + (c.green * -0.419) + (c.blue * -0.0813)) + 128.0</SourceLine>
<SourceLine>End Function</SourceLine>
</ItemSource>
<TextEncoding>134217984</TextEncoding>
<AliasName></AliasName>
<ItemFlags>0</ItemFlags>
<IsShared>0</IsShared>
<ItemParams>Extends c As Color</ItemParams>
<ItemResult>Integer</ItemResult>
</Method>
<Method>
<ItemName>Luminance</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>1839837183</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function Luminance(Extends c As Color) As Integer</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' Returns the "Y" component of YUV</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Return ((c.red * 0.299) + (c.green * 0.587) + (c.blue * 0.114))</SourceLine>
<SourceLine></SourceLine>
<SourceLine>End Function</SourceLine>
</ItemSource>
<TextEncoding>134217984</TextEncoding>
<AliasName></AliasName>
<ItemFlags>0</ItemFlags>
<IsShared>0</IsShared>
<ItemParams>Extends c As Color</ItemParams>
<ItemResult>Integer</ItemResult>
</Method>
<Method>
<ItemName>Desaturate</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>668981247</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function Desaturate(p As Picture) As Picture</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' This function converts the picture into perceptual grayscale by using the same </SourceLine>
<SourceLine>' formula as the Luminance() function.</SourceLine>
<SourceLine>' </SourceLine>
<SourceLine>' Returns a desaturated copy of "p".</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If (p Is Nil) Then Return Nil</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Dim copy As Picture = p.Copy</SourceLine>
<SourceLine>Dim g As Graphics</SourceLine>
<SourceLine>Dim r As RGBSurface</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Dim x, y, xMax, yMax, k As Integer</SourceLine>
<SourceLine>Dim c As Color</SourceLine>
<SourceLine></SourceLine>
<SourceLine>// Determine if we can use Graphics (fast) or RGBSurface (faster)</SourceLine>
<SourceLine>If (copy.Depth >= 16) And Not (copy.RGBSurface Is Nil) Then</SourceLine>
<SourceLine>r = copy.RGBSurface</SourceLine>
<SourceLine>Else</SourceLine>
<SourceLine>g = copy.Graphics</SourceLine>
<SourceLine>End If</SourceLine>
<SourceLine></SourceLine>
<SourceLine>xMax = p.Width - 1</SourceLine>
<SourceLine>yMax = p.Height - 1</SourceLine>
<SourceLine></SourceLine>
<SourceLine>// prefer to use RGBSurface, but if it is not then fall back to Graphics</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If Not (r Is Nil) Then</SourceLine>
<SourceLine>For y = 0 To yMax</SourceLine>
<SourceLine>#pragma BackgroundTasks False</SourceLine>
<SourceLine>For x = 0 To xMax</SourceLine>
<SourceLine>c = r.Pixel(x, y)</SourceLine>
<SourceLine>k = ((c.red * 0.299) + (c.green * 0.587) + (c.blue * 0.114))</SourceLine>
<SourceLine>r.Pixel(x, y) = RGB(k, k, k)</SourceLine>
<SourceLine>Next</SourceLine>
<SourceLine>#pragma BackgroundTasks True</SourceLine>
<SourceLine>Next</SourceLine>
<SourceLine>Else</SourceLine>
<SourceLine>For y = 0 To yMax</SourceLine>
<SourceLine>#pragma BackgroundTasks False</SourceLine>
<SourceLine>For x = 0 To xMax</SourceLine>
<SourceLine>c = g.Pixel(x, y)</SourceLine>
<SourceLine>k = ((c.red * 0.299) + (c.green * 0.587) + (c.blue * 0.114))</SourceLine>
<SourceLine>g.Pixel(x, y) = RGB(k, k, k)</SourceLine>
<SourceLine>Next</SourceLine>
<SourceLine>#pragma BackgroundTasks True</SourceLine>
<SourceLine>Next</SourceLine>
<SourceLine>End If</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Return copy</SourceLine>
<SourceLine>End Function</SourceLine>
</ItemSource>
<TextEncoding>134217984</TextEncoding>
<AliasName></AliasName>
<ItemFlags>1</ItemFlags>
<IsShared>0</IsShared>
<ItemParams>p As Picture</ItemParams>
<ItemResult>Picture</ItemResult>
</Method>
<Method>
<ItemName>Invert</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>912121855</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function Invert(p As Picture) As Picture</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' Inverts all pixels in a Picture.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' Returns a copy of "p", which will be a different color depth if p.Depth <= 8.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If (p Is Nil) Then Return Nil</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Dim copy As Picture</SourceLine>
<SourceLine>Dim r As RGBSurface</SourceLine>
<SourceLine>Dim k, cmap(255) As Integer</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If (p.Depth < 16) Then copy = p.Copy(True) Else copy = p.Copy</SourceLine>
<SourceLine>r = copy.RGBSurface</SourceLine>
<SourceLine></SourceLine>
<SourceLine>For k = 0 To 255</SourceLine>
<SourceLine>cmap(k) = BitwiseXor(k, &hFF)</SourceLine>
<SourceLine>Next</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If Not (r Is Nil) Then r.Transform(cmap)</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Return copy</SourceLine>
<SourceLine></SourceLine>
<SourceLine>End Function</SourceLine>
</ItemSource>
<TextEncoding>134217984</TextEncoding>
<AliasName></AliasName>
<ItemFlags>1</ItemFlags>
<IsShared>0</IsShared>
<ItemParams>p As Picture</ItemParams>
<ItemResult>Picture</ItemResult>
</Method>
<Method>
<ItemName>HasMask</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>874084351</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function HasMask(Extends p As Picture) As Boolean</SourceLine>
<SourceLine>Return Not (p.mask(false) = nil)</SourceLine>
<SourceLine></SourceLine>
<SourceLine>End Function</SourceLine>
</ItemSource>
<TextEncoding>134217984</TextEncoding>
<AliasName></AliasName>
<ItemFlags>0</ItemFlags>
<IsShared>0</IsShared>
<ItemParams>Extends p As Picture</ItemParams>
<ItemResult>Boolean</ItemResult>
</Method>
<Method>
<ItemName>InvertMask</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>105254911</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function InvertMask(p As Picture) As Picture</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' Inverts all pixels in a Picture.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' Returns a copy of "p", which will be a different color depth if p.Depth <= 8.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If (p Is Nil) Then Return Nil</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Dim copy As Picture</SourceLine>
<SourceLine>Dim r As RGBSurface</SourceLine>
<SourceLine>Dim k, cmap(255) As Integer</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If (p.Depth < 16) Then copy = p.Copy(True) Else copy = p.Copy</SourceLine>
<SourceLine>r = copy.CopyMask.RGBSurface</SourceLine>
<SourceLine></SourceLine>
<SourceLine>For k = 0 To 255</SourceLine>
<SourceLine>cmap(k.ToInt32) = BitwiseXor(k.ToUInt64, &hFF)</SourceLine>
<SourceLine>Next</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If Not (r Is Nil) Then r.Transform(cmap)</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Return copy</SourceLine>
<SourceLine></SourceLine>
<SourceLine>End Function</SourceLine>
</ItemSource>
<TextEncoding>134217984</TextEncoding>
<AliasName></AliasName>
<ItemFlags>1</ItemFlags>
<IsShared>0</IsShared>
<ItemParams>p As Picture</ItemParams>
<ItemResult>Picture</ItemResult>
</Method>
<Method>
<ItemName>ContrastBW</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>617664511</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function ContrastBW(Extends c As Color) As Color</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' Returns either Black or White depending on which color provides the best</SourceLine>
<SourceLine>' contrast compared with "c".</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If (c.Luminance < 128) Then</SourceLine>
<SourceLine>Return &cFFFFFF</SourceLine>
<SourceLine>Else</SourceLine>
<SourceLine>Return &c000000</SourceLine>
<SourceLine>End If</SourceLine>
<SourceLine></SourceLine>
<SourceLine>End Function</SourceLine>
</ItemSource>
<TextEncoding>134217984</TextEncoding>
<AliasName></AliasName>
<ItemFlags>0</ItemFlags>
<IsShared>0</IsShared>
<ItemParams>Extends c As Color</ItemParams>
<ItemResult>Color</ItemResult>
</Method>
<Method>
<ItemName>Scale</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>120016895</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function Scale(p As Picture, w As Integer, h As Integer) As Picture</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' This function creates a Scale copy of the original "p".</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' Returns a Picture which is exactly the size "w" and "h". If you want to scale a</SourceLine>
<SourceLine>' picture proportionally, use the ScaleWithin() function.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Dim mask As Picture</SourceLine>
<SourceLine>Dim gOriginalMask As Graphics</SourceLine>
<SourceLine>Dim copy As Picture</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If (p Is Nil) Then Return Nil // there is nothing to do, so return</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If p.HasMask Then</SourceLine>
<SourceLine>mask = New Picture(p.Width, p.Height, 32) // create temp mask picture</SourceLine>
<SourceLine>mask.Graphics.DrawPicture(p.Mask, 0, 0) // copy the mask</SourceLine>
<SourceLine>gOriginalMask = p.Mask.Graphics // get direct graphics object for speed</SourceLine>
<SourceLine>gOriginalMask.ForeColor = &c000000 // clear with black</SourceLine>
<SourceLine>gOriginalMask.FillRect(0, 0, gOriginalMask.Width, gOriginalMask.Height)</SourceLine>
<SourceLine>copy = New Picture(w, h, 32) // create new picture size of "w" and "h"</SourceLine>
<SourceLine>copy.Graphics.DrawPicture(p, 0, 0, w, h, 0, 0, p.Width, p.Height)</SourceLine>
<SourceLine>copy.Mask.Graphics.DrawPicture(mask, 0, 0, w, h, 0, 0, p.Width, p.Height)</SourceLine>
<SourceLine>gOriginalMask.DrawPicture(mask, 0, 0) // restore the original mask to 'p'</SourceLine>
<SourceLine>Else</SourceLine>
<SourceLine>copy = New Picture(w, h, 32) // create new picture size of "w" and "h"</SourceLine>
<SourceLine>copy.Graphics.DrawPicture(p, 0, 0, w, h, 0, 0, p.Width, p.Height)</SourceLine>
<SourceLine>End If</SourceLine>
<SourceLine></SourceLine>
<SourceLine>// now copy other variables of "p"</SourceLine>
<SourceLine>copy.HorizontalResolution = p.HorizontalResolution</SourceLine>
<SourceLine>copy.VerticalResolution = p.VerticalResolution</SourceLine>
<SourceLine>copy.Objects = p.Objects</SourceLine>
<SourceLine>copy.Transparent = p.Transparent</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Return copy</SourceLine>
<SourceLine></SourceLine>
<SourceLine>End Function</SourceLine>
</ItemSource>
<TextEncoding>134217984</TextEncoding>
<AliasName></AliasName>
<ItemFlags>1</ItemFlags>
<IsShared>0</IsShared>
<ItemParams>p As Picture, w As Integer, h As Integer</ItemParams>
<ItemResult>Picture</ItemResult>
</Method>
<Method>
<ItemName>ScaleWithin</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>607277055</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function ScaleWithin(p As Picture, w As Integer, h As Integer) As Picture</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' This function creates a Scale copy of the original "p".</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' Returns a Picture which is would fit within the bounds "w" and "h". If you want to </SourceLine>
<SourceLine>' scale a picture to be exactly "w" and "h", use the Scale() function instead.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Dim mask As Picture</SourceLine>
<SourceLine>Dim gOriginalMask As Graphics</SourceLine>
<SourceLine>Dim copy As Picture</SourceLine>
<SourceLine>Dim ratio As Double</SourceLine>
<SourceLine>Dim wFit, hFit As Integer</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If (p Is Nil) Then Return Nil // there is nothing to do, so return</SourceLine>
<SourceLine></SourceLine>
<SourceLine>ratio = Min(h / p.Height, w / p.Width)</SourceLine>
<SourceLine></SourceLine>
<SourceLine>wFit = p.Width * ratio</SourceLine>
<SourceLine>hFit = p.Height * ratio</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If p.HasMask Then</SourceLine>
<SourceLine>mask = New Picture(p.Width, p.Height, 32) // create temp mask picture</SourceLine>
<SourceLine>mask.Graphics.DrawPicture(p.Mask, 0, 0) // copy the mask</SourceLine>
<SourceLine>gOriginalMask = p.Mask.Graphics // get direct graphics object for speed</SourceLine>
<SourceLine>gOriginalMask.ForeColor = &c000000 // clear with black</SourceLine>
<SourceLine>gOriginalMask.FillRect(0, 0, gOriginalMask.Width, gOriginalMask.Height)</SourceLine>
<SourceLine>copy = New Picture(wFit, hFit, 32) // create new picture size of "wFit" and "hFit"</SourceLine>
<SourceLine>copy.Graphics.DrawPicture(p, 0, 0, wFit, hFit, 0, 0, p.Width, p.Height)</SourceLine>
<SourceLine>copy.Mask.Graphics.DrawPicture(mask, 0, 0, wFit, hFit, 0, 0, p.Width, p.Height)</SourceLine>
<SourceLine>gOriginalMask.DrawPicture(mask, 0, 0) // restore the original mask to 'p'</SourceLine>
<SourceLine>Else</SourceLine>
<SourceLine>copy = New Picture(wFit, hFit, 32) // create new picture size of "w" and "h"</SourceLine>
<SourceLine>copy.Graphics.DrawPicture(p, 0, 0, wFit, hFit, 0, 0, p.Width, p.Height)</SourceLine>
<SourceLine>End If</SourceLine>
<SourceLine></SourceLine>
<SourceLine>// now copy other variables of "p"</SourceLine>
<SourceLine>copy.HorizontalResolution = p.HorizontalResolution</SourceLine>
<SourceLine>copy.VerticalResolution = p.VerticalResolution</SourceLine>
<SourceLine>copy.Objects = p.Objects</SourceLine>
<SourceLine>copy.Transparent = p.Transparent</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Return copy</SourceLine>
<SourceLine></SourceLine>
<SourceLine>End Function</SourceLine>
</ItemSource>
<TextEncoding>134217984</TextEncoding>
<AliasName></AliasName>
<ItemFlags>1</ItemFlags>
<IsShared>0</IsShared>
<ItemParams>p As Picture, w As Integer, h As Integer</ItemParams>
<ItemResult>Picture</ItemResult>
</Method>
<Method>
<ItemName>FlipHorizontal</ItemName>
<Compatibility></Compatibility>
<Visible>1</Visible>
<PartID>1414469631</PartID>
<ItemSource>
<TextEncoding>134217984</TextEncoding>
<SourceLine>Function FlipHorizontal(p As Picture) As Picture</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>' This function flips the picture in the horizontal direction, but does not change</SourceLine>
<SourceLine>' the size of the picture.</SourceLine>
<SourceLine>'</SourceLine>
<SourceLine>//=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If (p Is Nil) Then Return Nil</SourceLine>
<SourceLine></SourceLine>
<SourceLine>Dim hasMask As Boolean = p.HasMask // cache result</SourceLine>
<SourceLine>Dim copy As Picture = New Picture(p.Width, p.Height, p.Depth)</SourceLine>
<SourceLine>Dim g, gOriginalMask As Graphics</SourceLine>
<SourceLine>Dim mask As Picture</SourceLine>
<SourceLine>Dim x, xMax As Integer</SourceLine>
<SourceLine></SourceLine>
<SourceLine>If hasMask Then</SourceLine>
<SourceLine>mask = New Picture(p.Width, p.Height, p.Depth)</SourceLine>
<SourceLine>mask.Graphics.DrawPicture(p.Mask, 0, 0)</SourceLine>
<SourceLine>gOriginalMask = p.Mask.Graphics</SourceLine>
<SourceLine>gOriginalMask.ForeColor = &c000000</SourceLine>