DriverRectangleG2d.java
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* PlantUML : a free UML diagram generator
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* (C) Copyright 2009-2024, Arnaud Roques
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* Original Author: Arnaud Roques
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package net.sourceforge.plantuml.klimt.drawing.g2d;
import java.awt.BasicStroke;
import java.awt.GradientPaint;
import java.awt.LinearGradientPaint;
import java.awt.Paint;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.Shape;
import java.awt.TexturePaint;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import java.awt.geom.RoundRectangle2D;
import java.awt.image.BufferedImage;
import net.sourceforge.plantuml.klimt.UParam;
import net.sourceforge.plantuml.klimt.UPattern;
import net.sourceforge.plantuml.klimt.UShapeSized;
import net.sourceforge.plantuml.klimt.color.ColorMapper;
import net.sourceforge.plantuml.klimt.color.HColor;
import net.sourceforge.plantuml.klimt.color.HColorGradient;
import net.sourceforge.plantuml.klimt.color.HColorLinearGradient;
import net.sourceforge.plantuml.klimt.color.HColorSimple;
import net.sourceforge.plantuml.klimt.awt.XColor;
import net.sourceforge.plantuml.klimt.drawing.UDriver;
import net.sourceforge.plantuml.klimt.geom.EnsureVisible;
import net.sourceforge.plantuml.klimt.shape.URectangle;
public class DriverRectangleG2d extends DriverShadowedG2d implements UDriver<URectangle, Graphics2D> {
private final double dpiFactor;
private final EnsureVisible visible;
public DriverRectangleG2d(double dpiFactor, EnsureVisible visible) {
this.dpiFactor = dpiFactor;
this.visible = visible;
}
public void draw(URectangle rect, double x, double y, ColorMapper mapper, UParam param, Graphics2D g2d) {
g2d.setStroke(new BasicStroke((float) param.getStroke().getThickness()));
final double rx = rect.getRx();
final double ry = rect.getRy();
final Shape shape;
if (rx == 0 && ry == 0)
shape = new Rectangle2D.Double(x, y, rect.getWidth(), rect.getHeight());
else
shape = new RoundRectangle2D.Double(x, y, rect.getWidth(), rect.getHeight(), rx, ry);
visible.ensureVisible(x, y);
visible.ensureVisible(x + rect.getWidth(), y + rect.getHeight());
final HColor back = param.getBackcolor();
// Shadow
if (rect.getDeltaShadow() != 0) {
if (back.isTransparent())
drawOnlyLineShadowSpecial(g2d, shape, rect.getDeltaShadow(), dpiFactor);
else
drawShadow(g2d, shape, rect.getDeltaShadow(), dpiFactor);
}
final HColor color = param.getColor();
if (color == null) {
param.getColor();
}
if (back instanceof HColorGradient || back instanceof HColorLinearGradient) {
final Paint paint = getPaintGradient(x, y, mapper, rect.getWidth(), rect.getHeight(), back);
g2d.setPaint(paint);
g2d.fill(shape);
drawBorder(param, color, mapper, rect, shape, g2d, x, y);
} else {
if (param.getBackcolor().isTransparent() == false) {
g2d.setColor(param.getBackcolor().toColor(mapper).toAwtColor());
DriverLineG2d.manageStroke(param, g2d);
managePattern(param, g2d);
g2d.fill(shape);
}
if (color.equals(param.getBackcolor()) == false)
drawBorder(param, color, mapper, rect, shape, g2d, x, y);
}
}
public static void drawBorder(UParam param, HColor color, ColorMapper mapper, UShapeSized sized, Shape shape,
Graphics2D g2d, double x, double y) {
if (color.isTransparent())
return;
if (color instanceof HColorGradient || color instanceof HColorLinearGradient) {
final Paint paint = getPaintGradient(x, y, mapper, sized.getWidth(), sized.getHeight(), color);
g2d.setPaint(paint);
} else {
g2d.setColor(color.toColor(mapper).toAwtColor());
}
DriverLineG2d.manageStroke(param, g2d);
g2d.draw(shape);
}
public static Paint getPaintGradient(double x, double y, ColorMapper mapper, double width, double height,
final HColor back) {
if (back instanceof HColorLinearGradient)
return createLinearGradientPaint((HColorLinearGradient) back, mapper, x, y, width, height);
final HColorGradient gr = (HColorGradient) back;
final char policy = gr.getPolicy();
final GradientPaint paint;
if (policy == '|')
paint = new GradientPaint((float) x, (float) (y + height) / 2, gr.getColor1().toColor(mapper).toAwtColor(),
(float) (x + width), (float) (y + height) / 2, gr.getColor2().toColor(mapper).toAwtColor());
else if (policy == '\\')
paint = new GradientPaint((float) x, (float) (y + height), gr.getColor1().toColor(mapper).toAwtColor(),
(float) (x + width), (float) y, gr.getColor2().toColor(mapper).toAwtColor());
else if (policy == '-')
paint = new GradientPaint((float) (x + width) / 2, (float) y, gr.getColor1().toColor(mapper).toAwtColor(),
(float) (x + width) / 2, (float) (y + height), gr.getColor2().toColor(mapper).toAwtColor());
else
// for /
paint = new GradientPaint((float) x, (float) y, gr.getColor1().toColor(mapper).toAwtColor(), (float) (x + width),
(float) (y + height), gr.getColor2().toColor(mapper).toAwtColor());
return paint;
}
private static Paint createLinearGradientPaint(HColorLinearGradient gr, ColorMapper mapper, double x, double y,
double width, double height) {
final int size = gr.getStops().size();
final float[] fractions = new float[size];
final java.awt.Color[] colors = new java.awt.Color[size];
int i = 0;
for (HColorLinearGradient.Stop stop : gr.getStops()) {
fractions[i] = (float) stop.getOffset();
final XColor base = stop.getColor().toColor(mapper);
int alpha = (int) Math.round(base.getAlpha() * stop.getOpacity());
if (alpha < 0)
alpha = 0;
if (alpha > 255)
alpha = 255;
colors[i] = new java.awt.Color(base.getRed(), base.getGreen(), base.getBlue(), alpha);
i++;
}
final float x1;
final float y1;
final float x2;
final float y2;
if (gr.isUserSpaceOnUse()) {
x1 = (float) gr.getX1();
y1 = (float) gr.getY1();
x2 = (float) gr.getX2();
y2 = (float) gr.getY2();
} else {
x1 = (float) (x + gr.getX1() * width);
y1 = (float) (y + gr.getY1() * height);
x2 = (float) (x + gr.getX2() * width);
y2 = (float) (y + gr.getY2() * height);
}
final LinearGradientPaint.CycleMethod cycleMethod;
switch (gr.getSpreadMethod()) {
case REFLECT:
cycleMethod = LinearGradientPaint.CycleMethod.REFLECT;
break;
case REPEAT:
cycleMethod = LinearGradientPaint.CycleMethod.REPEAT;
break;
case PAD:
default:
cycleMethod = LinearGradientPaint.CycleMethod.NO_CYCLE;
break;
}
return new LinearGradientPaint(new Point2D.Float(x1, y1), new Point2D.Float(x2, y2), fractions, colors,
cycleMethod);
}
public static void managePattern(UParam param, Graphics2D g2d) {
final UPattern pattern = param.getPattern();
if (pattern == UPattern.VERTICAL_STRIPE) {
final BufferedImage bi = new BufferedImage(4, 4, BufferedImage.TYPE_INT_ARGB);
final Rectangle r = new Rectangle(0, 0, 4, 4);
final int rgb = ((HColorSimple) param.getBackcolor()).getAwtColor().getRGB();
for (int i = 0; i < 4; i++)
for (int j = 0; j < 4; j++)
if (i == 0 || i == 1)
bi.setRGB(i, j, rgb);
g2d.setPaint(new TexturePaint(bi, r));
} else if (pattern == UPattern.HORIZONTAL_STRIPE) {
final BufferedImage bi = new BufferedImage(4, 4, BufferedImage.TYPE_INT_ARGB);
final Rectangle r = new Rectangle(0, 0, 4, 4);
final int rgb = ((HColorSimple) param.getBackcolor()).getAwtColor().getRGB();
for (int i = 0; i < 4; i++)
for (int j = 0; j < 4; j++)
if (j == 0 || j == 1)
bi.setRGB(i, j, rgb);
g2d.setPaint(new TexturePaint(bi, r));
} else if (pattern == UPattern.SMALL_CIRCLE) {
final BufferedImage bi = new BufferedImage(4, 4, BufferedImage.TYPE_INT_ARGB);
final Rectangle r = new Rectangle(0, 0, 4, 4);
final int rgb = ((HColorSimple) param.getBackcolor()).getAwtColor().getRGB();
bi.setRGB(0, 1, rgb);
bi.setRGB(1, 0, rgb);
bi.setRGB(1, 1, rgb);
bi.setRGB(1, 2, rgb);
bi.setRGB(2, 1, rgb);
g2d.setPaint(new TexturePaint(bi, r));
}
}
}