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fix(renderer): implement text wrapping in CustomLabel for better multi-line support

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extio-de
2026-01-03 20:58:21 +01:00
parent 16b26d4b60
commit 904855ee3e
1 changed files with 53 additions and 1 deletions
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54
src/main/java/de/extio/game_engine/renderer/g2d/control/components/CustomLabel.java
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@@ -9,6 +9,8 @@ import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionListener;
import java.util.ArrayList;
import java.util.List;
import de.extio.game_engine.renderer.ThemeManager;
import de.extio.game_engine.renderer.g2d.bo.rendering.G2DDrawFont;
@@ -205,7 +207,57 @@ public class CustomLabel extends Component {
final var alignment = this.textAlignment == null ? HorizontalAlignment.CENTER : this.textAlignment;
final var lines = this.caption != null && this.caption.contains("\n") ? this.caption.split("\n", -1) : new String[] { this.caption == null ? "" : this.caption };
final var rawLines = this.caption != null && this.caption.contains("\n") ? this.caption.split("\n", -1) : new String[] { this.caption == null ? "" : this.caption };
final var availableWidth = (int) (this.getWidth() / this.scaleFactor);
final List<String> wrappedLines = new ArrayList<>();
for (final var rawLine : rawLines) {
if (rawLine.isEmpty()) {
wrappedLines.add("");
continue;
}
final var lineWidth = G2DDrawFont.getTextDimensions(rawLine, g2d, this.fontSize, 1.0).getX();
if (lineWidth <= availableWidth) {
wrappedLines.add(rawLine);
}
else {
final var words = rawLine.split(" ");
final var currentLine = new StringBuilder();
for (final var word : words) {
final var testLine = currentLine.isEmpty() ? word : currentLine + " " + word;
final var testWidth = G2DDrawFont.getTextDimensions(testLine, g2d, this.fontSize, 1.0).getX();
if (testWidth <= availableWidth) {
if (!currentLine.isEmpty()) {
currentLine.append(" ");
}
currentLine.append(word);
}
else {
if (!currentLine.isEmpty()) {
wrappedLines.add(currentLine.toString());
currentLine.setLength(0);
}
final var wordWidth = G2DDrawFont.getTextDimensions(word, g2d, this.fontSize, 1.0).getX();
if (wordWidth <= availableWidth) {
currentLine.append(word);
}
else {
wrappedLines.add(word);
}
}
}
if (!currentLine.isEmpty()) {
wrappedLines.add(currentLine.toString());
}
}
}
final var lines = wrappedLines.toArray(new String[0]);
final var lineHeight = G2DDrawFont.getTextDimensions("M", g2d, this.fontSize, 1.0).getY() + (int) (Math.max(G2DDrawFont.FONT_SIZE_MIN, this.fontSize) * 0.5);
final CoordI2[] lineDims = new CoordI2[lines.length];
int maxLineWidth = 0;