- Implemented feature #11247: Custom highlight values in line and bar charts.

  Thanks to Elger Thiele for the basic patch.

4 files changed, 97 insertions, 2 deletions

diff --git a/tests/data/compare/ezcGraphLineChartTest_testBarChartHighlightValue.svg b/tests/data/compare/ezcGraphLineChartTest_testBarChartHighlightValue.svg
new file mode 100644
index 0000000..d797c83
--- /dev/null
+++ b/tests/data/compare/ezcGraphLineChartTest_testBarChartHighlightValue.svg
@@ -0,0 +1,2 @@
+<?xml version="1.0"?>
+<svg xmlns="http://www.w3.org/2000/svg" width="500" height="200" version="1.0" id="ezcGraph"><defs/><g id="ezcGraphChart" color-rendering="optimizeQuality" shape-rendering="geometricPrecision" text-rendering="optimizeLegibility"><path d=" M 0.0000,200.0000 L 0.0000,0.0000 L 500.0000,0.0000 L 500.0000,200.0000 L 0.0000,200.0000 z " style="fill: #eeeeec; fill-opacity: 1.00; stroke: none;" id="ezcGraphPolygon_1"/><path d=" M 0.0000,200.0000 L 0.0000,0.0000 L 100.0000,0.0000 L 100.0000,200.0000 L 0.0000,200.0000 z " style="fill: #000000; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_2"/><path d=" M 2.0000,16.0000 L 2.0000,2.0000 L 16.0000,2.0000 L 16.0000,16.0000 L 2.0000,16.0000 z " style="fill: #3465a4; fill-opacity: 1.00; stroke: none;" id="ezcGraphPolygon_3"/><path d=" M 100.0000,180.0000 L 500.0000,180.0000" style="fill: none; stroke: #2e3436; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_5"/><path d=" M 492.0000,176.0000 L 500.0000,180.0000 L 492.0000,184.0000 L 492.0000,176.0000 z " style="fill: #2e3436; 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stroke: #2e3436; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_14"/><path d=" M 332.0000,20.0000 L 332.0000,180.0000" style="fill: none; stroke: #000000; stroke-width: 1; stroke-opacity: 0.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_16"/><path d=" M 332.0000,177.0000 L 332.0000,183.0000" style="fill: none; stroke: #2e3436; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_17"/><path d=" M 396.0000,20.0000 L 396.0000,180.0000" style="fill: none; stroke: #000000; stroke-width: 1; stroke-opacity: 0.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_19"/><path d=" M 396.0000,177.0000 L 396.0000,183.0000" style="fill: none; stroke: #2e3436; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_20"/><path d=" M 460.0000,20.0000 L 460.0000,180.0000" style="fill: none; stroke: #000000; stroke-width: 1; stroke-opacity: 0.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_22"/><path d=" M 460.0000,177.0000 L 460.0000,183.0000" style="fill: none; stroke: #2e3436; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_23"/><path d=" M 140.0000,172.0000 L 460.0000,172.0000" style="fill: none; stroke: #000000; stroke-width: 1; stroke-opacity: 0.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_25"/><path d=" M 140.0000,172.0000 L 141.0000,172.0000" style="fill: none; stroke: #2e3436; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_26"/><path d=" M 140.0000,164.0000 L 460.0000,164.0000" style="fill: none; stroke: #000000; stroke-width: 1; stroke-opacity: 0.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_27"/><path d=" M 140.0000,164.0000 L 141.0000,164.0000" style="fill: none; stroke: #2e3436; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_28"/><path d=" M 140.0000,156.0000 L 460.0000,156.0000" style="fill: none; stroke: #000000; stroke-width: 1; stroke-opacity: 0.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_29"/><path d=" M 140.0000,156.0000 L 141.0000,156.0000" style="fill: none; stroke: #2e3436; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_30"/><path d=" M 140.0000,148.0000 L 460.0000,148.0000" style="fill: none; stroke: #000000; stroke-width: 1; stroke-opacity: 0.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_31"/><path d=" M 140.0000,148.0000 L 143.0000,148.0000" style="fill: none; stroke: #2e3436; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_32"/><path d=" M 140.0000,140.0000 L 460.0000,140.0000" style="fill: none; stroke: #000000; stroke-width: 1; stroke-opacity: 0.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_34"/><path d=" M 140.0000,140.0000 L 141.0000,140.0000" style="fill: none; stroke: #2e3436; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_35"/><path d=" M 140.0000,132.0000 L 460.0000,132.0000" style="fill: none; stroke: #000000; stroke-width: 1; stroke-opacity: 0.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_36"/><path d=" M 140.0000,132.0000 L 141.0000,132.0000" style="fill: none; stroke: #2e3436; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_37"/><path d=" M 140.0000,124.0000 L 460.0000,124.0000" style="fill: none; stroke: #000000; stroke-width: 1; stroke-opacity: 0.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_38"/><path d=" M 140.0000,124.0000 L 141.0000,124.0000" style="fill: none; stroke: #2e3436; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_39"/><path d=" M 140.0000,116.0000 L 460.0000,116.0000" style="fill: none; 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stroke-linejoin: round;" id="ezcGraphLine_52"/><path d=" M 140.0000,76.0000 L 141.0000,76.0000" style="fill: none; stroke: #2e3436; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_53"/><path d=" M 140.0000,68.0000 L 460.0000,68.0000" style="fill: none; stroke: #000000; stroke-width: 1; stroke-opacity: 0.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_54"/><path d=" M 140.0000,68.0000 L 141.0000,68.0000" style="fill: none; stroke: #2e3436; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_55"/><path d=" M 140.0000,60.0000 L 460.0000,60.0000" style="fill: none; stroke: #000000; stroke-width: 1; stroke-opacity: 0.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_56"/><path d=" M 140.0000,60.0000 L 141.0000,60.0000" style="fill: none; stroke: #2e3436; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_57"/><path d=" M 140.0000,52.0000 L 460.0000,52.0000" style="fill: none; stroke: #000000; stroke-width: 1; stroke-opacity: 0.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_58"/><path d=" M 140.0000,52.0000 L 143.0000,52.0000" style="fill: none; stroke: #2e3436; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_59"/><path d=" M 140.0000,44.0000 L 460.0000,44.0000" style="fill: none; stroke: #000000; stroke-width: 1; stroke-opacity: 0.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_61"/><path d=" M 140.0000,44.0000 L 141.0000,44.0000" style="fill: none; stroke: #2e3436; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_62"/><path d=" M 140.0000,36.0000 L 460.0000,36.0000" style="fill: none; stroke: #000000; stroke-width: 1; stroke-opacity: 0.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_63"/><path d=" M 140.0000,36.0000 L 141.0000,36.0000" style="fill: none; stroke: #2e3436; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_64"/><path d=" M 140.0000,28.0000 L 460.0000,28.0000" style="fill: none; stroke: #000000; stroke-width: 1; stroke-opacity: 0.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_65"/><path d=" M 140.0000,28.0000 L 141.0000,28.0000" style="fill: none; stroke: #2e3436; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_66"/><path d=" M 140.0000,20.0000 L 460.0000,20.0000" style="fill: none; stroke: #000000; stroke-width: 1; stroke-opacity: 0.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_67"/><path d=" M 140.0000,20.0000 L 143.0000,20.0000" style="fill: none; stroke: #2e3436; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_68"/><path d=" M 199.2425,180.0000 L 144.7575,180.0000 L 144.7575,40.0000 L 199.2425,40.0000 L 199.2425,180.0000 z " style="fill: #3465a4; fill-opacity: 1.00; stroke: none;" id="ezcGraphPolygon_70"/><path d=" M 145.2575,179.5000 L 145.2575,40.5000 L 198.7425,40.5000 L 198.7425,179.5000 L 145.2575,179.5000 z " style="fill: none; stroke: #1a3352; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphPolygon_71"/><path d=" M 263.2425,180.0000 L 208.7575,180.0000 L 208.7575,168.9600 L 263.2425,168.9600 L 263.2425,180.0000 z " style="fill: #3465a4; fill-opacity: 1.00; stroke: none;" id="ezcGraphPolygon_73"/><path d=" M 209.2575,179.5000 L 209.2575,169.4600 L 262.7425,169.4600 L 262.7425,179.5000 L 209.2575,179.5000 z " style="fill: none; stroke: #1a3352; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphPolygon_74"/><path d=" M 327.2425,180.0000 L 272.7575,180.0000 L 272.7575,141.4720 L 327.2425,141.4720 L 327.2425,180.0000 z " style="fill: #3465a4; fill-opacity: 1.00; stroke: none;" id="ezcGraphPolygon_75"/><path d=" M 273.2575,179.5000 L 273.2575,141.9720 L 326.7425,141.9720 L 326.7425,179.5000 L 273.2575,179.5000 z " style="fill: none; stroke: #1a3352; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphPolygon_76"/><path d=" M 391.2425,180.0000 L 336.7575,180.0000 L 336.7575,172.6080 L 391.2425,172.6080 L 391.2425,180.0000 z " style="fill: #3465a4; fill-opacity: 1.00; stroke: none;" id="ezcGraphPolygon_78"/><path d=" M 337.2575,179.5000 L 337.2575,173.1080 L 390.7425,173.1080 L 390.7425,179.5000 L 337.2575,179.5000 z " style="fill: none; stroke: #1a3352; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphPolygon_79"/><path d=" M 455.2425,180.0000 L 400.7575,180.0000 L 400.7575,148.4160 L 455.2425,148.4160 L 455.2425,180.0000 z " style="fill: #3465a4; fill-opacity: 1.00; stroke: none;" id="ezcGraphPolygon_81"/><path d=" M 401.2575,179.5000 L 401.2575,148.9160 L 454.7425,148.9160 L 454.7425,179.5000 L 401.2575,179.5000 z " style="fill: none; stroke: #1a3352; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphPolygon_82"/><g id="ezcGraphTextBox_4"><path d=" M 16.5000,17.0000 L 16.5000,1.5000 L 62.5200,1.5000 L 62.5200,17.0000 L 16.5000,17.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_84"/><text id="ezcGraphTextBox_4_text" x="17.0000" text-length="44.5200px" y="13.9000" style="font-size: 14px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">sample</text></g><g id="ezcGraphTextBox_9"><path d=" M 149.2400,195.0000 L 149.2400,181.5000 L 195.2600,181.5000 L 195.2600,195.0000 L 149.2400,195.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_85"/><text id="ezcGraphTextBox_9_text" x="149.7400" text-length="44.5200px" y="192.2000" style="font-size: 12px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">Mozilla</text></g><g id="ezcGraphTextBox_12"><path d=" M 229.1400,195.0000 L 229.1400,181.5000 L 243.3600,181.5000 L 243.3600,195.0000 L 229.1400,195.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_86"/><text id="ezcGraphTextBox_12_text" x="229.6400" text-length="12.7200px" y="192.2000" style="font-size: 12px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">IE</text></g><g id="ezcGraphTextBox_15"><path d=" M 283.6000,195.0000 L 283.6000,181.5000 L 316.9000,181.5000 L 316.9000,195.0000 L 283.6000,195.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_87"/><text id="ezcGraphTextBox_15_text" x="284.1000" text-length="31.8000px" y="192.2000" style="font-size: 12px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">Opera</text></g><g id="ezcGraphTextBox_18"><path d=" M 350.7800,195.0000 L 350.7800,181.5000 L 377.7200,181.5000 L 377.7200,195.0000 L 350.7800,195.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_88"/><text id="ezcGraphTextBox_18_text" x="351.2800" text-length="25.4400px" y="192.2000" style="font-size: 12px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">wget</text></g><g id="ezcGraphTextBox_21"><path d=" M 408.4200,195.0000 L 408.4200,181.5000 L 448.0800,181.5000 L 448.0800,195.0000 L 408.4200,195.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_89"/><text id="ezcGraphTextBox_21_text" x="408.9200" text-length="38.1600px" y="192.2000" style="font-size: 12px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">Safari</text></g><g id="ezcGraphTextBox_24"><path d=" M 130.0600,179.0000 L 130.0600,165.5000 L 139.0000,165.5000 L 139.0000,179.0000 L 130.0600,179.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_90"/><text id="ezcGraphTextBox_24_text" x="130.5600" text-length="7.4400px" y="176.2000" style="font-size: 12px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">0</text></g><g id="ezcGraphTextBox_33"><path d=" M 107.7400,147.0000 L 107.7400,133.5000 L 139.0000,133.5000 L 139.0000,147.0000 L 107.7400,147.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_91"/><text id="ezcGraphTextBox_33_text" x="108.2400" text-length="29.7600px" y="144.2000" style="font-size: 12px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">1000</text></g><g id="ezcGraphTextBox_42"><path d=" M 107.7400,115.0000 L 107.7400,101.5000 L 139.0000,101.5000 L 139.0000,115.0000 L 107.7400,115.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_92"/><text id="ezcGraphTextBox_42_text" x="108.2400" text-length="29.7600px" y="112.2000" style="font-size: 12px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">2000</text></g><g id="ezcGraphTextBox_51"><path d=" M 107.7400,83.0000 L 107.7400,69.5000 L 139.0000,69.5000 L 139.0000,83.0000 L 107.7400,83.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_93"/><text id="ezcGraphTextBox_51_text" x="108.2400" text-length="29.7600px" y="80.2000" style="font-size: 12px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">3000</text></g><g id="ezcGraphTextBox_60"><path d=" M 107.7400,51.0000 L 107.7400,37.5000 L 139.0000,37.5000 L 139.0000,51.0000 L 107.7400,51.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_94"/><text id="ezcGraphTextBox_60_text" x="108.2400" text-length="29.7600px" y="48.2000" style="font-size: 12px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">4000</text></g><g id="ezcGraphTextBox_69"><path d=" M 107.7400,35.0000 L 107.7400,21.5000 L 139.0000,21.5000 L 139.0000,35.0000 L 107.7400,35.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_95"/><text id="ezcGraphTextBox_69_text" x="108.2400" text-length="29.7600px" y="32.2000" style="font-size: 12px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">5000</text></g><g id="ezcGraphTextBox_72"><path d=" M 160.3700,35.0000 L 160.3700,19.5000 L 184.1300,19.5000 L 184.1300,35.0000 L 160.3700,35.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_96"/><text id="ezcGraphTextBox_72_text" x="160.8700" text-length="22.2600px" y="31.9000" style="font-size: 14px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">foo</text></g><g id="ezcGraphTextBox_77"><path d=" M 277.2400,136.4720 L 277.2400,120.9720 L 323.2600,120.9720 L 323.2600,136.4720 L 277.2400,136.4720 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_97"/><text id="ezcGraphTextBox_77_text" x="277.7400" text-length="44.5200px" y="133.3720" style="font-size: 14px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">Opera!</text></g><g id="ezcGraphTextBox_80"><path d=" M 352.3700,167.6080 L 352.3700,152.1080 L 376.1300,152.1080 L 376.1300,167.6080 L 352.3700,167.6080 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_98"/><text id="ezcGraphTextBox_80_text" x="352.8700" text-length="22.2600px" y="164.5080" style="font-size: 14px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">foo</text></g><g id="ezcGraphTextBox_83"><path d=" M 416.3700,143.4160 L 416.3700,127.9160 L 440.1300,127.9160 L 440.1300,143.4160 L 416.3700,143.4160 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_99"/><text id="ezcGraphTextBox_83_text" x="416.8700" text-length="22.2600px" y="140.3160" style="font-size: 14px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">foo</text></g></g></svg>
diff --git a/tests/data/compare/ezcGraphLineChartTest_testLineChartHighlightValue.svg b/tests/data/compare/ezcGraphLineChartTest_testLineChartHighlightValue.svg
new file mode 100644
index 0000000..67ebd99
--- /dev/null
+++ b/tests/data/compare/ezcGraphLineChartTest_testLineChartHighlightValue.svg
@@ -0,0 +1,2 @@
+<?xml version="1.0"?>
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stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_63"/><path d=" M 140.0000,20.0000 L 460.0000,20.0000" style="fill: none; stroke: #000000; stroke-width: 1; stroke-opacity: 0.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_64"/><path d=" M 140.0000,20.0000 L 143.0000,20.0000" style="fill: none; stroke: #2e3436; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_65"/><path d=" M 140.0000,40.0000 L 140.0000,40.0000" style="fill: none; stroke: #3465a4; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_67"/><path d=" M 140.0000,40.0000 L 220.0000,168.9600" style="fill: none; stroke: #3465a4; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_69"/><path d=" M 220.0000,168.9600 L 300.0000,141.4720" style="fill: none; stroke: #3465a4; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_71"/><path d=" M 300.0000,141.4720 L 380.0000,172.6080" style="fill: none; stroke: #3465a4; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_73"/><path d=" M 380.0000,172.6080 L 460.0000,148.4160" style="fill: none; stroke: #3465a4; stroke-width: 1; stroke-opacity: 1.00; stroke-linecap: round; stroke-linejoin: round;" id="ezcGraphLine_75"/><g id="ezcGraphTextBox_4"><path d=" M 16.5000,17.0000 L 16.5000,1.5000 L 62.5200,1.5000 L 62.5200,17.0000 L 16.5000,17.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_77"/><text id="ezcGraphTextBox_4_text" x="17.0000" text-length="44.5200px" y="13.9000" style="font-size: 14px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">sample</text></g><g id="ezcGraphTextBox_11"><path d=" M 213.1400,195.0000 L 213.1400,181.5000 L 227.3600,181.5000 L 227.3600,195.0000 L 213.1400,195.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_78"/><text id="ezcGraphTextBox_11_text" x="213.6400" text-length="12.7200px" y="192.2000" style="font-size: 12px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">IE</text></g><g id="ezcGraphTextBox_14"><path d=" M 283.6000,195.0000 L 283.6000,181.5000 L 316.9000,181.5000 L 316.9000,195.0000 L 283.6000,195.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_79"/><text id="ezcGraphTextBox_14_text" x="284.1000" text-length="31.8000px" y="192.2000" style="font-size: 12px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">Opera</text></g><g id="ezcGraphTextBox_17"><path d=" M 366.7800,195.0000 L 366.7800,181.5000 L 393.7200,181.5000 L 393.7200,195.0000 L 366.7800,195.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_80"/><text id="ezcGraphTextBox_17_text" x="367.2800" text-length="25.4400px" y="192.2000" style="font-size: 12px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">wget</text></g><g id="ezcGraphTextBox_20"><path d=" M 440.4200,195.0000 L 440.4200,181.5000 L 480.0800,181.5000 L 480.0800,195.0000 L 440.4200,195.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_81"/><text id="ezcGraphTextBox_20_text" x="440.9200" text-length="38.1600px" y="192.2000" style="font-size: 12px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">Safari</text></g><g id="ezcGraphTextBox_21"><path d=" M 130.0600,179.0000 L 130.0600,165.5000 L 139.0000,165.5000 L 139.0000,179.0000 L 130.0600,179.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_82"/><text id="ezcGraphTextBox_21_text" x="130.5600" text-length="7.4400px" y="176.2000" style="font-size: 12px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">0</text></g><g id="ezcGraphTextBox_30"><path d=" M 107.7400,147.0000 L 107.7400,133.5000 L 139.0000,133.5000 L 139.0000,147.0000 L 107.7400,147.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_83"/><text id="ezcGraphTextBox_30_text" x="108.2400" text-length="29.7600px" y="144.2000" style="font-size: 12px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">1000</text></g><g id="ezcGraphTextBox_39"><path d=" M 107.7400,115.0000 L 107.7400,101.5000 L 139.0000,101.5000 L 139.0000,115.0000 L 107.7400,115.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_84"/><text id="ezcGraphTextBox_39_text" x="108.2400" text-length="29.7600px" y="112.2000" style="font-size: 12px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">2000</text></g><g id="ezcGraphTextBox_48"><path d=" M 107.7400,83.0000 L 107.7400,69.5000 L 139.0000,69.5000 L 139.0000,83.0000 L 107.7400,83.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_85"/><text id="ezcGraphTextBox_48_text" x="108.2400" text-length="29.7600px" y="80.2000" style="font-size: 12px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">3000</text></g><g id="ezcGraphTextBox_57"><path d=" M 107.7400,51.0000 L 107.7400,37.5000 L 139.0000,37.5000 L 139.0000,51.0000 L 107.7400,51.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_86"/><text id="ezcGraphTextBox_57_text" x="108.2400" text-length="29.7600px" y="48.2000" style="font-size: 12px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">4000</text></g><g id="ezcGraphTextBox_66"><path d=" M 107.7400,35.0000 L 107.7400,21.5000 L 139.0000,21.5000 L 139.0000,35.0000 L 107.7400,35.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_87"/><text id="ezcGraphTextBox_66_text" x="108.2400" text-length="29.7600px" y="32.2000" style="font-size: 12px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">5000</text></g><g id="ezcGraphTextBox_68"><path d=" M 122.1400,35.0000 L 122.1400,19.5000 L 158.3600,19.5000 L 158.3600,35.0000 L 122.1400,35.0000 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_88"/><text id="ezcGraphTextBox_68_text" x="122.6400" text-length="34.7200px" y="31.9000" style="font-size: 14px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">4375</text></g><g id="ezcGraphTextBox_70"><path d=" M 206.4800,163.9600 L 206.4800,148.4600 L 234.0200,148.4600 L 234.0200,163.9600 L 206.4800,163.9600 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_89"/><text id="ezcGraphTextBox_70_text" x="206.9800" text-length="26.0400px" y="160.8600" style="font-size: 14px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">345</text></g><g id="ezcGraphTextBox_72"><path d=" M 277.2400,136.4720 L 277.2400,120.9720 L 323.2600,120.9720 L 323.2600,136.4720 L 277.2400,136.4720 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_90"/><text id="ezcGraphTextBox_72_text" x="277.7400" text-length="44.5200px" y="133.3720" style="font-size: 14px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">Opera!</text></g><g id="ezcGraphTextBox_74"><path d=" M 366.4800,167.6080 L 366.4800,152.1080 L 394.0200,152.1080 L 394.0200,167.6080 L 366.4800,167.6080 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_91"/><text id="ezcGraphTextBox_74_text" x="366.9800" text-length="26.0400px" y="164.5080" style="font-size: 14px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">231</text></g><g id="ezcGraphTextBox_76"><path d=" M 446.4800,143.4160 L 446.4800,127.9160 L 474.0200,127.9160 L 474.0200,143.4160 L 446.4800,143.4160 z " style="fill: #ffffff; fill-opacity: 0.00; stroke: none;" id="ezcGraphPolygon_92"/><text id="ezcGraphTextBox_76_text" x="446.9800" text-length="26.0400px" y="140.3160" style="font-size: 14px; font-family: sans-serif; fill: #2e3436; fill-opacity: 1.00; stroke: none;">987</text></g></g></svg>
diff --git a/tests/dataset_test.php b/tests/dataset_test.php
index 3c2f102..c7bb0e6 100644
--- a/tests/dataset_test.php
+++ b/tests/dataset_test.php
@@ -175,6 +175,40 @@ class ezcGraphDataSetTest extends ezcTestCase
         );
     }
 
+    public function testDataSetSetHighlightValue()
+    {
+        $chart = new ezcGraphPieChart();
+        $chart->data['income'] = new ezcGraphArrayDataSet( array( 2000 => 2345.2, 2456.3, 2567.4 ) );
+        $chart->data['income']->highlightValue = 'Test';
+        $chart->data['income']->highlightValue[2001] = 'TestString';
+
+        $this->assertEquals(
+            'Test',
+            $chart->data['income']->highlightValue->default
+        );
+
+        $this->assertEquals(
+            'TestString',
+            $chart->data['income']->highlightValue[2001]
+        );
+    }
+
+    public function testDataSetGetHighlightValue()
+    {
+        $chart = new ezcGraphPieChart();
+        $chart->data['income'] = new ezcGraphArrayDataSet( array( 2000 => 2345.2, 2456.3, 2567.4 ) );
+
+        $this->assertEquals(
+            false,
+            $chart->data['income']->highlightValue[2001]
+        );
+
+        $this->assertEquals(
+            false,
+            $chart->data['income']->highlightValue->default
+        );
+    }
+
     public function testDataSetSetHighlightSingle()
     {
         $chart = new ezcGraphPieChart();
diff --git a/tests/line_test.php b/tests/line_test.php
index 18a2588..002af62 100644
--- a/tests/line_test.php
+++ b/tests/line_test.php
@@ -9,13 +9,15 @@
  * @license http://ez.no/licenses/new_bsd New BSD License
  */
 
+require_once dirname( __FILE__ ) . '/test_case.php';
+
 /**
  * Tests for ezcGraph class.
  * 
  * @package ImageAnalysis
  * @subpackage Tests
  */
-class ezcGraphLineChartTest extends ezcTestCase
+class ezcGraphLineChartTest extends ezcGraphTestCase
 {
     protected $basePath;
 
@@ -39,7 +41,10 @@ class ezcGraphLineChartTest extends ezcTestCase
 
     protected function tearDown()
     {
-        $this->removeTempDir();
+        if ( !$this->hasFailed() )
+        {
+            $this->removeTempDir();
+        }
     }
 
     protected function addSampleData( ezcGraphChart $chart )
@@ -760,5 +765,57 @@ class ezcGraphLineChartTest extends ezcTestCase
 
         $this->fail( 'Expected ezcGraphNoDataException.' );
     }
+
+    public function testLineChartHighlightValue()
+    {
+        $filename = $this->tempDir . __FUNCTION__ . '.svg';
+
+        $chart = new ezcGraphLineChart();
+        $chart->data['sample'] = new ezcGraphArrayDataSet( array(
+            'Mozilla' => 4375,
+            'IE' => 345,
+            'Opera' => 1204,
+            'wget' => 231,
+            'Safari' => 987,
+        ) );
+
+        $chart->data['sample']->highlight = true;
+        $chart->data['sample']->highlightValue['Opera'] = 'Opera!';
+
+        $chart->driver = new ezcGraphSvgDriver();
+        $chart->render( 500, 200, $filename );
+
+        $this->compare(
+            $filename,
+            $this->basePath . 'compare/' . __CLASS__ . '_' . __FUNCTION__ . '.svg'
+        );
+    }
+
+    public function testBarChartHighlightValue()
+    {
+        $filename = $this->tempDir . __FUNCTION__ . '.svg';
+
+        $chart = new ezcGraphBarChart();
+        $chart->data['sample'] = new ezcGraphArrayDataSet( array(
+            'Mozilla' => 4375,
+            'IE' => 345,
+            'Opera' => 1204,
+            'wget' => 231,
+            'Safari' => 987,
+        ) );
+
+        $chart->data['sample']->highlight = true;
+        $chart->data['sample']->highlight['IE'] = false;
+        $chart->data['sample']->highlightValue = 'foo';
+        $chart->data['sample']->highlightValue['Opera'] = 'Opera!';
+
+        $chart->driver = new ezcGraphSvgDriver();
+        $chart->render( 500, 200, $filename );
+
+        $this->compare(
+            $filename,
+            $this->basePath . 'compare/' . __CLASS__ . '_' . __FUNCTION__ . '.svg'
+        );
+    }
 }
 ?>