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package org.netbeans.modules.visualweb.designer;
import java.awt.Color;
import org.netbeans.modules.visualweb.css2.PageBox;
// For CVS archaeology: Most of the code in this file used to be in SelectionManager.java
/**
* This class manages color selections for the designer surface
* @todo This file needs some cleanup after being split out from SelectionManager.
*
* @author Tor Norbye
*/
public class ColorManager {
private WebForm webform;
/** Last pagebox we've analyzed and chosen colors for */
private PageBox pageBox;
public Color insertColor;
public Color selectionColor;
public Color selectionColorReverse;
public Color selectionBoundsColor;
public Color primaryColor;
public Color dropTargetColor;
public Color hierarchyForegroundColor;
public Color hierarchyBackgroundColor;
public Color draggerColor;
public Color draggerColorBorder;
public Color resizerColor;
public Color resizerColorBorder;
public Color marqueeColor;
public Color marqueeColorBorder;
public Color gridColor;
/** Creates a new instance of ColorManager */
public ColorManager(WebForm webform) {
this.webform = webform;
}
public void resetPageBox() {
pageBox = null;
}
public void sync() {
DesignerPane pane = webform.getPane();
if ((pane != null) && (pane.getPageBox() != pageBox)) {
pageBox = pane.getPageBox();
initializeColors();
}
}
private void initializeColors() {
PageBox pb = webform.getPane().getPageBox();
if ((pb != null) && pb.isDarkBackground()) {
setDarkBackgroundColors();
} else {
setLightBackgroundColors();
}
}
/** @todo Make colors user-configurable. Better yet, look them
* up from the UA stylesheet, default.css!
*/
private void setLightBackgroundColors() {
insertColor = Color.LIGHT_GRAY;
gridColor = Color.GRAY;
selectionColor = Color.BLACK;
selectionColorReverse = Color.WHITE;
selectionBoundsColor = Color.DARK_GRAY;
//primaryColor = Color.lightGray;
primaryColor = Color.YELLOW;
dropTargetColor = Color.BLUE;
draggerColor = new Color(0, 0, 0, 30);
draggerColorBorder = new Color(0, 0, 0, 100);
marqueeColor = draggerColor;
marqueeColorBorder = draggerColorBorder;
resizerColor = draggerColor;
resizerColorBorder = draggerColorBorder;
if (SelectionManager.PAINT_SELECTION_HIERARCHY) {
hierarchyForegroundColor = Color.BLACK;
hierarchyBackgroundColor = new Color(200, 200, 200, 128);
}
}
/** @todo Make colors user-configurable. Better yet, look them
* up from the UA stylesheet, default.css!
*/
private void setDarkBackgroundColors() {
insertColor = Color.LIGHT_GRAY;
gridColor = Color.GRAY;
selectionColor = Color.WHITE;
selectionColorReverse = Color.BLACK;
selectionBoundsColor = Color.DARK_GRAY;
primaryColor = Color.YELLOW;
dropTargetColor = Color.BLUE;
draggerColor = new Color(200, 200, 200, 30);
draggerColorBorder = new Color(200, 200, 200, 100);
marqueeColor = draggerColor;
marqueeColorBorder = draggerColorBorder;
resizerColor = draggerColor;
resizerColorBorder = draggerColorBorder;
if (SelectionManager.PAINT_SELECTION_HIERARCHY) {
hierarchyForegroundColor = Color.WHITE;
hierarchyBackgroundColor = new Color(200, 200, 200, 128);
}
}
/** Check whether the given color is "dark".
* @todo Move to ColorManager
*/
public static boolean isDark(Color color) {
// Decide whether this color is "light" or "dark".
// Can't just do a simple "(r+g+b)/3 > 128" check since for
// example saturated yellow is six times brighter than saturated blue.
// So compute the luminance. I found various different luminance
// formulas but they were similar enough that any one would be
// close enough for my purposes:
float luminance255 = // no point dividing by 255 to normalize to 1.0
(0.27f * color.getRed()) + (0.67f * color.getGreen()) + (0.06f * color.getBlue());
// Could split at 50% (128) but since this method is used to
// decide when to switch to reverse video, go a little bit
// darker since visually it looks better with dark selection
// handles for example and it's light enough a bit further down
// the scale - let's go down to 25% before we hit reverse video
return luminance255 < 64.0f;
}
}
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