X-Git-Url: https://mograsim.net/gitweb/?a=blobdiff_plain;f=net.mograsim.preferences%2Fsrc%2Fnet%2Fmograsim%2Fpreferences%2FSimpleColorManager.java;fp=net.mograsim.preferences%2Fsrc%2Fnet%2Fmograsim%2Fpreferences%2FSimpleColorManager.java;h=74f74dc02027c38719d070620cb186341aadda17;hb=dff3e01498ac766a7f1ec7b18ce2cc5acd257cb5;hp=0000000000000000000000000000000000000000;hpb=bc741717e4a64cda96f0c51c780895c6e93ef309;p=Mograsim.git

diff --git a/net.mograsim.preferences/src/net/mograsim/preferences/SimpleColorManager.java b/net.mograsim.preferences/src/net/mograsim/preferences/SimpleColorManager.java
new file mode 100644
index 00000000..74f74dc0
--- /dev/null
+++ b/net.mograsim.preferences/src/net/mograsim/preferences/SimpleColorManager.java
@@ -0,0 +1,80 @@
+package net.mograsim.preferences;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.graphics.Device;
+
+import net.mograsim.preferences.ColorDefinition.BuiltInColor;
+
+public class SimpleColorManager extends ColorManager
+{
+	private static final Map<BuiltInColor, Color> systemColors = new HashMap<>();
+	private static final Map<Color, BuiltInColor> systemColorConstants = new HashMap<>();
+
+	@Override
+	public Color toColor(Device device, ColorDefinition col)
+	{
+		Color systemColor = systemColors.get(col.builtInColor);
+		if (systemColor != null)
+			return systemColor;
+		if (col.builtInColor != null)
+		{
+			systemColor = device.getSystemColor(toSWTColorConstant(col.builtInColor));
+			systemColors.put(col.builtInColor, systemColor);
+			systemColorConstants.put(systemColor, col.builtInColor);
+			return systemColor;
+		}
+		return new Color(device, col.r, col.g, col.b);
+	}
+
+	@Override
+	public void dispose(Color col)
+	{
+		if (!systemColorConstants.containsKey(col))
+			col.dispose();
+	}
+
+	public static int toSWTColorConstant(BuiltInColor col)
+	{
+		switch (col)
+		{
+		case COLOR_BLACK:
+			return SWT.COLOR_BLACK;
+		case COLOR_BLUE:
+			return SWT.COLOR_BLUE;
+		case COLOR_CYAN:
+			return SWT.COLOR_CYAN;
+		case COLOR_DARK_BLUE:
+			return SWT.COLOR_DARK_BLUE;
+		case COLOR_DARK_CYAN:
+			return SWT.COLOR_DARK_CYAN;
+		case COLOR_DARK_GRAY:
+			return SWT.COLOR_DARK_GRAY;
+		case COLOR_DARK_GREEN:
+			return SWT.COLOR_DARK_GREEN;
+		case COLOR_DARK_MAGENTA:
+			return SWT.COLOR_DARK_MAGENTA;
+		case COLOR_DARK_RED:
+			return SWT.COLOR_DARK_RED;
+		case COLOR_DARK_YELLOW:
+			return SWT.COLOR_DARK_YELLOW;
+		case COLOR_GRAY:
+			return SWT.COLOR_GRAY;
+		case COLOR_GREEN:
+			return SWT.COLOR_GREEN;
+		case COLOR_MAGENTA:
+			return SWT.COLOR_MAGENTA;
+		case COLOR_RED:
+			return SWT.COLOR_RED;
+		case COLOR_WHITE:
+			return SWT.COLOR_WHITE;
+		case COLOR_YELLOW:
+			return SWT.COLOR_YELLOW;
+		default:
+			throw new IllegalArgumentException("Unknown enum constant: " + col);
+		}
+	}
+}