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Hopefully fix bug #51236 - make the xssf colour black/white 3 rgb fix apply for set as well as get

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git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1126696 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Nick Burch 2011-05-23 19:55:00 +00:00
parent 8144d5e1ae
commit ab6caf7f49
4 changed files with 44 additions and 17 deletions
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1
src/documentation/content/xdocs/status.xml
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@ -34,6 +34,7 @@
<changes>
<release version="3.8-beta3" date="2011-??-??">
<action dev="poi-developers" type="fix">51236 - XSSF set colour support for black/white to match getter</action>
<action dev="poi-developers" type="add">51196 - Initial support for Spreadsheet Chart API</action>
<action dev="poi-developers" type="add">Add support for OOXML Agile Encryption</action>
<action dev="poi-developers" type="add">51160 - Initial version of SXSSF, a low memory foortprint API to produce xlsx files</action>

3
src/ooxml/java/org/apache/poi/xssf/model/ThemesTable.java
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@ -87,7 +87,8 @@ public class ThemesTable extends POIXMLDocumentPart {
// Get the theme colour
XSSFColor themeColor = getThemeColor(color.getTheme());
// Set the raw colour, not the adjusted one
color.setRgb(themeColor.getCTColor().getRgb());
// Do a raw set, no adjusting at the XSSFColor layer either
color.getCTColor().setRgb(themeColor.getCTColor().getRgb());
// All done
}

40
src/ooxml/java/org/apache/poi/xssf/usermodel/XSSFColor.java
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@ -80,6 +80,27 @@ public class XSSFColor implements Color {
ctColor.setIndexed(indexed);
}
/**
* For RGB colours, but not ARGB (we think...)
* Excel gets black and white the wrong way around, so switch them
*/
private byte[] correctRGB(byte[] rgb) {
if(rgb.length == 4) {
// Excel doesn't appear to get these wrong
// Nothing to change
return rgb;
} else {
// Excel gets black and white the wrong way around, so switch them
if (rgb[0] == 0 && rgb[1] == 0 && rgb[2] == 0) {
rgb = new byte[] {-1, -1, -1};
}
else if (rgb[0] == -1 && rgb[1] == -1 && rgb[2] == -1) {
rgb = new byte[] {0, 0, 0};
}
return rgb;
}
}
/**
* Standard Red Green Blue ctColor value (RGB).
* If there was an A (Alpha) value, it will be stripped.
@ -138,20 +159,8 @@ public class XSSFColor implements Color {
// Grab the colour
rgb = ctColor.getRgb();
if(rgb.length == 4) {
// Good to go, return it as-is
return rgb;
}
// For RGB colours, but not ARGB (we think...)
// Excel gets black and white the wrong way around, so switch them
if (rgb[0] == 0 && rgb[1] == 0 && rgb[2] == 0) {
rgb = new byte[] {-1, -1, -1};
}
else if (rgb[0] == -1 && rgb[1] == -1 && rgb[2] == -1) {
rgb = new byte[] {0, 0, 0};
}
return rgb;
// Correct it as needed, and return
return correctRGB(rgb);
}
/**
@ -211,7 +220,8 @@ public class XSSFColor implements Color {
* Standard Alpha Red Green Blue ctColor value (ARGB).
*/
public void setRgb(byte[] rgb) {
ctColor.setRgb(rgb);
// Correct it and save
ctColor.setRgb(correctRGB(rgb));
}
/**

15
src/ooxml/testcases/org/apache/poi/xssf/usermodel/TestXSSFColor.java
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@ -97,6 +97,21 @@ public final class TestXSSFColor extends TestCase {
assertEquals(0, rgb3.getRgbWithTint()[0]);
assertEquals(0, rgb3.getRgbWithTint()[1]);
assertEquals(0, rgb3.getRgbWithTint()[2]);
// Set the colour to black, will get translated internally
// (Excel stores 3 colour white and black wrong!)
rgb3.setRgb(new byte[] {-1,-1,-1});
assertEquals("FFFFFFFF", rgb3.getARGBHex());
assertEquals(0, rgb3.getCTColor().getRgb()[0]);
assertEquals(0, rgb3.getCTColor().getRgb()[1]);
assertEquals(0, rgb3.getCTColor().getRgb()[2]);
// Set another, is fine
rgb3.setRgb(new byte[] {16,17,18});
assertEquals("FF101112", rgb3.getARGBHex());
assertEquals(0x10, rgb3.getCTColor().getRgb()[0]);
assertEquals(0x11, rgb3.getCTColor().getRgb()[1]);
assertEquals(0x12, rgb3.getCTColor().getRgb()[2]);
}
public void testARGBColour() throws Exception {