SpreadsheetML 中的主题混乱

发布于 2024-08-31 01:03:48 字数 4798 浏览 5 评论 0 原文

我一整天都在与这个斗争。在我的 styles.xml 文件中,我提供了如下颜色信息:

ECMA 376 将主题颜色参考定义为:

索引收藏, 引用特定的或者 主题所表达的价值 部分。

好吧,这听起来很容易。以下是我的 clrScheme xml 的摘录:







索引零是黑色的,他们想把它变暗?我可以告诉你,应用色调后,颜色应该是#F2F2F2。

我的困惑是 theme="0" 的真正含义是什么?它不可能意味着变暗#000000。检查MSDN只会让我更加困惑。来自http://msdn.microsoft.com/en-us/library/dd560821。 ASPX

注意主题颜色整数 开始从左到右计数 从零开始的调色板。主题 颜色 3 是深色 2 文本/背景 颜色。

实际上,如果从零开始计数,则第三个条目是 Light 2。Dark 2 是第二个条目。这里有人可以为我解释一下这个主题吗? theme="0" 的真正含义是什么?

这是我一直在使用的用于应用色调的 VB6 代码。您可以将其粘贴到 vba 编辑器中并运行测试子程序。

Public Type tRGB
    R As Byte
    G As Byte
    B As Byte
End Type

Public Type tHSL
    H As Double
    S As Double
    L As Double
End Type

Sub TestRgbTint()
    Dim c As tRGB
    RGB_Hex2Type "ffffff", c
    RGB_ApplyTint c, -0.249977111117893
    Debug.Print Hex(c.R) & Hex(c.G) & Hex(c.B)
End Sub

Public Sub RGB_Hex2Type(ByVal HexString As String, RGB As tRGB)
    'Remove the alpha channel if it exists
    If Len(HexString) = 8 Then
        HexString = mID(HexString, 3)
    End If

    RGB.R = CByte("&H" & Left(HexString, 2))
    RGB.G = CByte("&H" & mID(HexString, 3, 2))
    RGB.B = CByte("&H" & Right(HexString, 2))
End Sub

Public Sub RGB_ApplyTint(RGB As tRGB, tint As Double)
    Const HLSMAX = 1#
    Dim HSL As tHSL

    If tint = 0 Then Exit Sub

    RGB2HSL RGB, HSL

    If tint < 0 Then
        HSL.L = HSL.L * (1# + tint)
    Else
        HSL.L = HSL.L * (1# - tint) + (HLSMAX - HLSMAX * (1# - tint))
    End If

    HSL2RGB HSL, RGB
End Sub

Public Sub HSL2RGB(HSL As tHSL, RGB As tRGB)
    HSL2RGB_ByVal HSL.H, HSL.S, HSL.L, RGB
End Sub

Private Sub HSL2RGB_ByVal(ByVal H As Double, ByVal S As Double, ByVal L As Double, RGB As tRGB)
    Dim v As Double
    Dim R As Double, G As Double, B As Double

    'Default color to gray
    R = L
    G = L
    B = L
    If L < 0.5 Then
        v = L * (1# + S)
    Else
        v = L + S - L * S
    End If
    If v > 0 Then
        Dim m As Double, sv As Double
        Dim sextant As Integer
        Dim fract As Double, vsf As Double, mid1 As Double, mid2 As Double
        m = L + L - v
        sv = (v - m) / v
        H = H * 6#
        sextant = Int(H)
        fract = H - sextant
        vsf = v * sv * fract
        mid1 = m + vsf
        mid2 = v - vsf
        Select Case sextant
            Case 0
                R = v
                G = mid1
                B = m
            Case 1
                R = mid2
                G = v
                B = m
            Case 2
                R = m
                G = v
                B = mid1
            Case 3
                R = m
                G = mid2
                B = v
            Case 4
                R = mid1
                G = m
                B = v
            Case 5
                R = v
                G = m
                B = mid2
        End Select
    End If

    RGB.R = R * 255#
    RGB.G = G * 255#
    RGB.B = B * 255#
End Sub

Public Sub RGB2HSL(RGB As tRGB, HSL As tHSL)
    Dim R As Double, G As Double, B As Double
    Dim v As Double, m As Double, vm As Double
    Dim r2 As Double, g2 As Double, b2 As Double

    R = RGB.R / 255#
    G = RGB.G / 255#
    B = RGB.B / 255#

    'Default to black
    HSL.H = 0
    HSL.S = 0
    HSL.L = 0
    v = IIf(R > G, R, G)
    v = IIf(v > B, v, B)
    m = IIf(R < G, R, G)
    m = IIf(m < B, m, B)
    HSL.L = (m + v) / 2#
    If HSL.L < 0 Then
        Exit Sub
    End If
    vm = v - m
    HSL.S = vm
    If HSL.S > 0 Then
        If HSL.L <= 0.5 Then
            HSL.S = HSL.S / (v + m)
        Else
            HSL.S = HSL.S / (2# - v - m)
        End If
    Else
        Exit Sub
    End If
    r2 = (v - R) / vm
    g2 = (v - G) / vm
    b2 = (v - B) / vm
    If R = v Then
        If G = m Then
            HSL.H = 5# + b2
        Else
            HSL.H = 1# - g2
        End If
    ElseIf G = v Then
        If B = m Then
            HSL.H = 1# + r2
        Else
            HSL.H = 3# - b2
        End If
    Else
        If R = m Then
            HSL.H = 3# + g2
        Else
            HSL.H = 5# - r2
        End If
    End If
    HSL.H = HSL.H / 6#
End Sub

I've been fighting this all day. Inside my styles.xml file I have color information given like so:

<fgColor theme="0" tint="-0.249977111117893" />

ECMA 376 defines a theme color reference as:

Index into the <clrScheme> collection,
referencing a particular <sysClr> or
<srgbClr> value expressed in the Theme
part.

Ok, that sounds easy. Here is an excerpt from my clrScheme xml:

<a:clrScheme name="Office">
<a:dk1>
<a:sysClr val="windowText" lastClr="000000" />
</a:dk1>
<a:lt1>
<a:sysClr val="window" lastClr="FFFFFF" />
</a:lt1>

Index zero is black, and they are wanting to darken it? I can tell you that after the tint is applied, the color should be #F2F2F2.

My confusion is what does theme="0" really mean? It can't possible mean to darken #000000. Checking MSDN only confuses me even more. From http://msdn.microsoft.com/en-us/library/dd560821.aspx

note that the theme color integer
begins counting from left to right in
the palette starting with zero. Theme
color 3 is the dark 2 text/background
color.

Actually, if you start counting at zero the third entry is Light 2. Dark 2 is the second one. Can anyone here shed some light on this subject for me? What does theme="0" really mean?

Here is the VB6 code I have been working with to apply the tint. You can paste it into your vba editor and run the test sub.

Public Type tRGB
    R As Byte
    G As Byte
    B As Byte
End Type

Public Type tHSL
    H As Double
    S As Double
    L As Double
End Type

Sub TestRgbTint()
    Dim c As tRGB
    RGB_Hex2Type "ffffff", c
    RGB_ApplyTint c, -0.249977111117893
    Debug.Print Hex(c.R) & Hex(c.G) & Hex(c.B)
End Sub

Public Sub RGB_Hex2Type(ByVal HexString As String, RGB As tRGB)
    'Remove the alpha channel if it exists
    If Len(HexString) = 8 Then
        HexString = mID(HexString, 3)
    End If

    RGB.R = CByte("&H" & Left(HexString, 2))
    RGB.G = CByte("&H" & mID(HexString, 3, 2))
    RGB.B = CByte("&H" & Right(HexString, 2))
End Sub

Public Sub RGB_ApplyTint(RGB As tRGB, tint As Double)
    Const HLSMAX = 1#
    Dim HSL As tHSL

    If tint = 0 Then Exit Sub

    RGB2HSL RGB, HSL

    If tint < 0 Then
        HSL.L = HSL.L * (1# + tint)
    Else
        HSL.L = HSL.L * (1# - tint) + (HLSMAX - HLSMAX * (1# - tint))
    End If

    HSL2RGB HSL, RGB
End Sub

Public Sub HSL2RGB(HSL As tHSL, RGB As tRGB)
    HSL2RGB_ByVal HSL.H, HSL.S, HSL.L, RGB
End Sub

Private Sub HSL2RGB_ByVal(ByVal H As Double, ByVal S As Double, ByVal L As Double, RGB As tRGB)
    Dim v As Double
    Dim R As Double, G As Double, B As Double

    'Default color to gray
    R = L
    G = L
    B = L
    If L < 0.5 Then
        v = L * (1# + S)
    Else
        v = L + S - L * S
    End If
    If v > 0 Then
        Dim m As Double, sv As Double
        Dim sextant As Integer
        Dim fract As Double, vsf As Double, mid1 As Double, mid2 As Double
        m = L + L - v
        sv = (v - m) / v
        H = H * 6#
        sextant = Int(H)
        fract = H - sextant
        vsf = v * sv * fract
        mid1 = m + vsf
        mid2 = v - vsf
        Select Case sextant
            Case 0
                R = v
                G = mid1
                B = m
            Case 1
                R = mid2
                G = v
                B = m
            Case 2
                R = m
                G = v
                B = mid1
            Case 3
                R = m
                G = mid2
                B = v
            Case 4
                R = mid1
                G = m
                B = v
            Case 5
                R = v
                G = m
                B = mid2
        End Select
    End If

    RGB.R = R * 255#
    RGB.G = G * 255#
    RGB.B = B * 255#
End Sub

Public Sub RGB2HSL(RGB As tRGB, HSL As tHSL)
    Dim R As Double, G As Double, B As Double
    Dim v As Double, m As Double, vm As Double
    Dim r2 As Double, g2 As Double, b2 As Double

    R = RGB.R / 255#
    G = RGB.G / 255#
    B = RGB.B / 255#

    'Default to black
    HSL.H = 0
    HSL.S = 0
    HSL.L = 0
    v = IIf(R > G, R, G)
    v = IIf(v > B, v, B)
    m = IIf(R < G, R, G)
    m = IIf(m < B, m, B)
    HSL.L = (m + v) / 2#
    If HSL.L < 0 Then
        Exit Sub
    End If
    vm = v - m
    HSL.S = vm
    If HSL.S > 0 Then
        If HSL.L <= 0.5 Then
            HSL.S = HSL.S / (v + m)
        Else
            HSL.S = HSL.S / (2# - v - m)
        End If
    Else
        Exit Sub
    End If
    r2 = (v - R) / vm
    g2 = (v - G) / vm
    b2 = (v - B) / vm
    If R = v Then
        If G = m Then
            HSL.H = 5# + b2
        Else
            HSL.H = 1# - g2
        End If
    ElseIf G = v Then
        If B = m Then
            HSL.H = 1# + r2
        Else
            HSL.H = 3# - b2
        End If
    Else
        If R = m Then
            HSL.H = 3# + g2
        Else
            HSL.H = 5# - r2
        End If
    End If
    HSL.H = HSL.H / 6#
End Sub

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评论(2

漫漫岁月 2024-09-07 01:03:48

我从 odf-converter.sourceforge.net 检查了 xsl,看起来 0 和 1 被切换,2 和 3 被切换。这是 xsl 部分:

    <xsl:variable name="theme">
      <xsl:choose>
        <xsl:when test="@theme = 0">
          <xsl:text>1</xsl:text>
        </xsl:when>
        <xsl:when test="@theme = 1">
          <xsl:text>0</xsl:text>
        </xsl:when>
        <xsl:when test="@theme = 2">
          <xsl:text>3</xsl:text>
        </xsl:when>
        <xsl:when test="@theme = 3">
          <xsl:text>2</xsl:text>
        </xsl:when>
        <xsl:otherwise>
          <xsl:value-of select="@theme"/>
        </xsl:otherwise>
      </xsl:choose>
    </xsl:variable>

现在一切都匹配了。注意 0=1、1=0、2=3、3=2 开关。

I checked out the xsl from odf-converter.sourceforge.net and it looks like 0 and 1 are switched and 2 and 3 are switched. Here is the xsl part:

    <xsl:variable name="theme">
      <xsl:choose>
        <xsl:when test="@theme = 0">
          <xsl:text>1</xsl:text>
        </xsl:when>
        <xsl:when test="@theme = 1">
          <xsl:text>0</xsl:text>
        </xsl:when>
        <xsl:when test="@theme = 2">
          <xsl:text>3</xsl:text>
        </xsl:when>
        <xsl:when test="@theme = 3">
          <xsl:text>2</xsl:text>
        </xsl:when>
        <xsl:otherwise>
          <xsl:value-of select="@theme"/>
        </xsl:otherwise>
      </xsl:choose>
    </xsl:variable>

Everything is matching up now. Notice the 0=1, 1=0, 2=3, 3=2 switch.

感情废物 2024-09-07 01:03:48

是的,它是主题颜色的索引。 0 是“第一个”,这意味着 1。看起来您正在使用 Excel。对于 PowerPoint,请注意色调/阴影算法是不同的 - 它不是基于 HSL,而是基于线性 RGB。

Yeah, it's the index of the theme color. 0 being "the first one", which means 1. Looks like you're doing Excel. For PowerPoint, note that the tint/shade algorithm is different - it's not based on HSL but rather Linear RGB.

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