X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.trend%2Fsrc%2Forg%2Fsimantics%2Ftrend%2Fimpl%2FViewRenderingProfile.java;fp=bundles%2Forg.simantics.trend%2Fsrc%2Forg%2Fsimantics%2Ftrend%2Fimpl%2FViewRenderingProfile.java;h=1d6a9d8b6ddf1a61a79bc106f9cd3f0b2d203c67;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.trend/src/org/simantics/trend/impl/ViewRenderingProfile.java b/bundles/org.simantics.trend/src/org/simantics/trend/impl/ViewRenderingProfile.java
new file mode 100644
index 000000000..1d6a9d8b6
--- /dev/null
+++ b/bundles/org.simantics.trend/src/org/simantics/trend/impl/ViewRenderingProfile.java
@@ -0,0 +1,52 @@
+package org.simantics.trend.impl;
+
+import java.awt.Color;
+
+import org.simantics.trend.configuration.ViewProfile;
+
+/**
+ * Internal caching class for chart rendering related data that only needs to be
+ * recreated when the rendered TrendSpec changes, not on every rendered frame.
+ * 
+ * @author Tuukka Lehtonen
+ */
+class ViewRenderingProfile {
+
+    public Color backgroundColor1 = Plot.PLOT_AREA_BG_GRADIENT_COLOR_BOTTOM;
+    public Color backgroundColor2 = Plot.PLOT_AREA_BG_GRADIENT_COLOR_TOP;;
+    public Color gridColor = Plot.GRID_LINE_COLOR;
+
+    public ViewRenderingProfile read(ViewProfile p) {
+        if (p.backgroundColor != null) {
+            float[] bg = p.backgroundColor;
+            int len = bg.length;
+            if (len >= 6) {
+                backgroundColor1 = toColor(bg, 0);
+                backgroundColor2 = toColor(bg, 3);
+            } else if (len >= 3) {
+                backgroundColor1 = toColor(bg, 0);
+                backgroundColor2 = null;
+            }
+        } else {
+            backgroundColor1 = Plot.PLOT_AREA_BG_GRADIENT_COLOR_BOTTOM;
+            backgroundColor2 = Plot.PLOT_AREA_BG_GRADIENT_COLOR_TOP;
+        }
+
+        if (p.gridColor != null && p.gridColor.length >= 3) {
+            gridColor = toColor(p.gridColor, 0);
+        } else {
+            gridColor = Plot.GRID_LINE_COLOR;
+        }
+
+        return this;
+    }
+
+    private static Color toColor(float[] array, int offset) {
+        return new Color(clamp(array[offset]), clamp(array[offset+1]), clamp(array[offset+2]));
+    }
+
+    private static float clamp(float v) {
+        return Math.max(0, Math.min(v, 1));
+    }
+
+}