exo/game-engine
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chore(version): update project version to 1.0.4 and enhance G2DDrawFont with text layout improvements

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This commit is contained in:
extio-de
2026-04-01 21:26:43 +02:00
parent 3da31a31bb
commit e8584f7372
2 changed files with 63 additions and 13 deletions
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2
pom.xml
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@@ -4,7 +4,7 @@
<modelVersion>4.0.0</modelVersion>
<groupId>de.extio</groupId>
<artifactId>game-engine</artifactId>
<version>1.0.3</version>
<version>1.0.4</version>
<properties>
<java.version>25</java.version>

64
src/main/java/de/extio/game_engine/renderer/g2d/bo/rendering/G2DDrawFont.java
View File

@@ -3,8 +3,11 @@ package de.extio.game_engine.renderer.g2d.bo.rendering;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GraphicsEnvironment;
import java.awt.Shape;
import java.awt.font.TextAttribute;
import java.awt.font.TextLayout;
import java.text.AttributedString;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.atomic.AtomicReference;
@@ -31,6 +34,8 @@ public class G2DDrawFont extends G2DAbstractRenderingBo implements DrawFontRende
private static final AtomicReference<Font> cachedFontRef = new AtomicReference<>();
private static final AtomicReference<Font> cachedFallbackFontRef = new AtomicReference<>();
private static Font baseFont;
static {
@@ -44,7 +49,10 @@ public class G2DDrawFont extends G2DAbstractRenderingBo implements DrawFontRende
staticResourceService.loadStreamByPath(resource).ifPresent(stream -> {
try (var in = stream) {
final var font = Font.createFont(Font.TRUETYPE_FONT, in);
GraphicsEnvironment.getLocalGraphicsEnvironment().registerFont(font);
G2DDrawFont.baseFont = font;
G2DDrawFont.cachedFontRef.set(null);
G2DDrawFont.cachedFallbackFontRef.set(null);
}
catch (final Exception e) {
LOGGER.warn(e.getMessage(), e);
@@ -178,6 +186,17 @@ public class G2DDrawFont extends G2DAbstractRenderingBo implements DrawFontRende
});
}
private static Font getFallbackFont(final double scaleFactor, final int size_) {
final var size = size_ == 0 ? FONT_SIZE_DEFAULT : size_;
final var sizeScaled = Math.max(FONT_SIZE_MIN, (float) (size * scaleFactor));
return cachedFallbackFontRef.updateAndGet(existingFont -> {
if (existingFont == null || existingFont.getSize2D() != sizeScaled) {
return new Font(Font.DIALOG, baseFont.getStyle(), Math.max(1, Math.round(sizeScaled)));
}
return existingFont;
});
}
public static void renderText(final Graphics graphics, final double scaleFactor, final int x, final int y, final int size_, final String text) {
renderText(graphics, null, scaleFactor, x, y, size_, text);
}
@@ -200,11 +219,10 @@ public class G2DDrawFont extends G2DAbstractRenderingBo implements DrawFontRende
}
private static void renderSingleLine(final Graphics graphics, final CoordI2 textDim_, final double scaleFactor, final int x, final int y, final int size_, final String text) {
if (text == null) {
if (text == null || text.isEmpty()) {
return;
}
final var font = getFont(scaleFactor, size_);
CoordI2 textDim;
if (textDim_ == null) {
textDim = getTextDimensions(text, graphics, size_, scaleFactor);
@@ -212,8 +230,8 @@ public class G2DDrawFont extends G2DAbstractRenderingBo implements DrawFontRende
else {
textDim = textDim_;
}
graphics.setFont(font);
graphics.drawString(text, (int) (x * scaleFactor), (int) (y * scaleFactor) + textDim.getY());
final var textLayout = createTextLayout(text, graphics, size_, scaleFactor);
textLayout.draw((Graphics2D) graphics, (float) (x * scaleFactor), (float) ((y * scaleFactor) + textDim.getY()));
}
public static CoordI2 getTextDimensions(final String text, final Graphics graphics, final int size_, final double scaleFactor) {
@@ -221,10 +239,42 @@ public class G2DDrawFont extends G2DAbstractRenderingBo implements DrawFontRende
return ImmutableCoordI2.one();
}
final var font = getFont(scaleFactor, size_);
final var gv = font.layoutGlyphVector(((Graphics2D) graphics).getFontRenderContext(), text.toCharArray(), 0, text.length(), Font.LAYOUT_LEFT_TO_RIGHT);
final var pixBounds = gv.getPixelBounds(((Graphics2D) graphics).getFontRenderContext(), 0, 0);
if (text.isEmpty()) {
final var fontMetrics = graphics.getFontMetrics(getFont(scaleFactor, size_));
return MutableCoordI2.create(0, fontMetrics.getAscent());
}
final var textLayout = createTextLayout(text, graphics, size_, scaleFactor);
final var pixBounds = textLayout.getPixelBounds(((Graphics2D) graphics).getFontRenderContext(), 0, 0);
return MutableCoordI2.create(pixBounds.x + pixBounds.width, pixBounds.height - (int) pixBounds.getMaxY());
}
private static TextLayout createTextLayout(final String text, final Graphics graphics, final int size_, final double scaleFactor) {
final var attributedString = createAttributedString(text, size_, scaleFactor);
return new TextLayout(attributedString.getIterator(), ((Graphics2D) graphics).getFontRenderContext());
}
private static AttributedString createAttributedString(final String text, final int size_, final double scaleFactor) {
final var primaryFont = getFont(scaleFactor, size_);
final var fallbackFont = getFallbackFont(scaleFactor, size_);
final var attributedString = new AttributedString(text);
var index = 0;
while (index < text.length()) {
final var codePoint = text.codePointAt(index);
final var runFont = primaryFont.canDisplay(codePoint) ? primaryFont : fallbackFont;
final var runStart = index;
index += Character.charCount(codePoint);
while (index < text.length()) {
final var nextCodePoint = text.codePointAt(index);
final var nextFont = primaryFont.canDisplay(nextCodePoint) ? primaryFont : fallbackFont;
if (!runFont.equals(nextFont)) {
break;
}
index += Character.charCount(nextCodePoint);
}
attributedString.addAttribute(TextAttribute.FONT, runFont, runStart, index);
}
return attributedString;
}
}