/*
- * Sixth 3D engine. Copyright ©2012-2018, Svjatoslav Agejenko, svjatoslav@svjatoslav.eu
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 3 of the GNU Lesser General Public License
- * or later as published by the Free Software Foundation.
- *
+ * Sixth 3D engine. Author: Svjatoslav Agejenko.
+ * This project is released under Creative Commons Zero (CC0) license.
*/
-
package eu.svjatoslav.sixth.e3d.renderer.raster.shapes.composite.textcanvas;
import eu.svjatoslav.sixth.e3d.geometry.Point2D;
import java.awt.*;
+import static eu.svjatoslav.sixth.e3d.renderer.raster.shapes.basic.solidpolygon.SolidPolygon.drawPolygon;
+import static eu.svjatoslav.sixth.e3d.renderer.raster.shapes.composite.textcanvas.TextCanvas.FONT_CHAR_HEIGHT;
+import static eu.svjatoslav.sixth.e3d.renderer.raster.shapes.composite.textcanvas.TextCanvas.FONT_CHAR_WIDTH;
+import static java.lang.String.valueOf;
+
+/**
+ * Represents a single character on the text canvas.
+ */
public class CanvasCharacter extends AbstractCoordinateShape {
- public static final double SIZE_MULTIPLIER = 0.005;
private static final int MAX_FONT_SIZE = 500;
+
+ /**
+ * Cached fonts.
+ */
private static final Font[] fonts = new Font[MAX_FONT_SIZE];
- private String value;
+ /**
+ * The character to be rendered.
+ */
+ private char value;
+
+ /**
+ * The foreground color of the character.
+ */
private eu.svjatoslav.sixth.e3d.renderer.raster.Color foregroundColor;
- private Color foregroundAwtColor;
+ /**
+ * The background color of the character.
+ */
private eu.svjatoslav.sixth.e3d.renderer.raster.Color backgroundColor;
- public CanvasCharacter(final Point3D point, final char character,
+ public CanvasCharacter(final Point3D centerLocation, final char character,
final eu.svjatoslav.sixth.e3d.renderer.raster.Color foregroundColor,
final eu.svjatoslav.sixth.e3d.renderer.raster.Color backgroundColor) {
+ // There are 5 coordinates: center, upper left, upper right, lower right, lower left
super(5);
- coordinates[0].coordinate = point;
-
- value = String.valueOf(character);
+ value = character;
this.foregroundColor = foregroundColor;
- foregroundAwtColor = foregroundColor.toAwtColor();
-
this.backgroundColor = backgroundColor;
- // set corner coordinates (for drawing background)
- {
- final double widthHalf = TextCanvas.FONT_CHAR_WIDTH / 2d;
- final double heightHalf = TextCanvas.FONT_CHAR_HEIGHT / 2d;
- // upper left
- coordinates[1].coordinate = point.clone().translateX(-widthHalf)
- .translateY(-heightHalf);
+ coordinates[0].coordinate = centerLocation;
- // upper right
- coordinates[2].coordinate = point.clone().translateX(widthHalf)
- .translateY(-heightHalf);
+ final double halfWidth = FONT_CHAR_WIDTH / 2d;
+ final double halfHeight = FONT_CHAR_HEIGHT / 2d;
- // lower right
- coordinates[3].coordinate = point.clone().translateX(widthHalf)
- .translateY(heightHalf);
+ // upper left
+ coordinates[1].coordinate = centerLocation.clone().translateX(-halfWidth)
+ .translateY(-halfHeight);
- // lower left
- coordinates[4].coordinate = point.clone().translateX(-widthHalf)
- .translateY(heightHalf);
+ // upper right
+ coordinates[2].coordinate = centerLocation.clone().translateX(halfWidth)
+ .translateY(-halfHeight);
- }
+ // lower right
+ coordinates[3].coordinate = centerLocation.clone().translateX(halfWidth)
+ .translateY(halfHeight);
+
+ // lower left
+ coordinates[4].coordinate = centerLocation.clone().translateX(-halfWidth)
+ .translateY(halfHeight);
}
+ /**
+ * Returns a font of the specified size.
+ * <p>
+ * If the font of the specified size is already cached, it will be
+ * returned. Otherwise, a new font will be created, cached and returned.
+ *
+ * @param size the size of the font
+ * @return the font
+ */
public static Font getFont(final int size) {
if (fonts[size] != null)
return fonts[size];
return font;
}
+ /**
+ * Returns color of the background.
+ */
public eu.svjatoslav.sixth.e3d.renderer.raster.Color getBackgroundColor() {
return backgroundColor;
}
+ /**
+ * Sets color of the background.
+ */
public void setBackgroundColor(
final eu.svjatoslav.sixth.e3d.renderer.raster.Color backgroundColor) {
this.backgroundColor = backgroundColor;
}
+ /**
+ * Returns color of the foreground.
+ *
+ * @return the color
+ */
public eu.svjatoslav.sixth.e3d.renderer.raster.Color getForegroundColor() {
return foregroundColor;
}
+ /**
+ * Sets color of the foreground.
+ *
+ * @param foregroundColor the color
+ */
public void setForegroundColor(
final eu.svjatoslav.sixth.e3d.renderer.raster.Color foregroundColor) {
this.foregroundColor = foregroundColor;
- foregroundAwtColor = foregroundColor.toAwtColor();
}
+ /**
+ * Paints the character on the screen.
+ * @param renderingContext the rendering context
+ */
@Override
public void paint(final RenderingContext renderingContext) {
- SolidPolygon.drawPolygon(renderingContext,
+ // Draw background rectangle first. It is composed of two triangles.
+ drawPolygon(renderingContext,
coordinates[1].onScreenCoordinate,
coordinates[2].onScreenCoordinate,
- coordinates[3].onScreenCoordinate, mouseInteractionController,
+ coordinates[3].onScreenCoordinate,
+ mouseInteractionController,
backgroundColor);
- SolidPolygon.drawPolygon(renderingContext,
+ drawPolygon(renderingContext,
coordinates[1].onScreenCoordinate,
coordinates[3].onScreenCoordinate,
- coordinates[4].onScreenCoordinate, mouseInteractionController,
+ coordinates[4].onScreenCoordinate,
+ mouseInteractionController,
backgroundColor);
- final int size = (int) ((renderingContext.width * 4.5) / onScreenZ);
+ final int desiredFontSize = (int) ((renderingContext.width * 4.5) / onScreenZ);
// do not render too large characters
- if (size >= MAX_FONT_SIZE)
+ if (desiredFontSize >= MAX_FONT_SIZE)
return;
final Point2D onScreenLocation = coordinates[0].onScreenCoordinate;
if (onScreenLocation.y > renderingContext.height)
return;
- renderingContext.graphics.setFont(getFont(size));
- renderingContext.graphics.setColor(foregroundAwtColor);
- renderingContext.graphics.drawString(value, (int) onScreenLocation.x
- - (int) (size / 3.2), (int) onScreenLocation.y
- + (int) (size / 2.5));
+ // draw the character
+ renderingContext.graphics.setFont(getFont(desiredFontSize));
+ renderingContext.graphics.setColor(foregroundColor.toAwtColor());
+ renderingContext.graphics.drawString(
+ valueOf(value),
+ (int) onScreenLocation.x - (int) (desiredFontSize / 3.2),
+ (int) onScreenLocation.y + (int) (desiredFontSize / 2.5));
}
public void setValue(final char value) {
- this.value = String.valueOf(value);
+ this.value = value;
}
}
projects / sixth-3d.git / blobdiff