+++ /dev/null
-/*
- * This file is part of lanterna (http://code.google.com/p/lanterna/).
- *
- * lanterna is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- * Copyright (C) 2010-2015 Martin
- */
-package com.googlecode.lanterna.terminal.swing;
-
-import com.googlecode.lanterna.Symbols;
-import com.googlecode.lanterna.TextCharacter;
-
-import java.awt.*;
-import java.awt.font.FontRenderContext;
-import java.awt.geom.Rectangle2D;
-import java.lang.reflect.Field;
-import java.lang.reflect.Modifier;
-import java.util.*;
-import java.util.List;
-
-/**
- * This class encapsulates the font information used by an {@link AWTTerminal}. By customizing this class, you can
- * choose which fonts are going to be used by an {@link AWTTerminal} component and some other related settings.
- * @author martin
- */
-public class AWTTerminalFontConfiguration {
-
- /**
- * Controls how the SGR bold will take effect when enabled on a character. Mainly this is controlling if the
- * character should be rendered with a bold font or not. The reason for this is that some characters, notably the
- * lines and double-lines in defined in Symbol, usually doesn't look very good with bold font when you try to
- * construct a GUI.
- */
- public enum BoldMode {
- /**
- * All characters with SGR Bold enabled will be rendered using a bold font
- */
- EVERYTHING,
- /**
- * All characters with SGR Bold enabled, except for the characters defined as constants in Symbols class, will
- * be rendered using a bold font
- */
- EVERYTHING_BUT_SYMBOLS,
- /**
- * Bold font will not be used for characters with SGR bold enabled
- */
- NOTHING,
- ;
- }
-
- private static final Set<String> MONOSPACE_CHECK_OVERRIDE = Collections.unmodifiableSet(new HashSet<String>(Arrays.asList(
- "VL Gothic Regular",
- "NanumGothic",
- "WenQuanYi Zen Hei Mono",
- "WenQuanYi Zen Hei",
- "AR PL UMing TW",
- "AR PL UMing HK",
- "AR PL UMing CN"
- )));
-
- private static List<Font> getDefaultWindowsFonts() {
- return Collections.unmodifiableList(Arrays.asList(
- new Font("Courier New", Font.PLAIN, 14), //Monospaced can look pretty bad on Windows, so let's override it
- new Font("Monospaced", Font.PLAIN, 14)));
- }
-
- private static List<Font> getDefaultLinuxFonts() {
- return Collections.unmodifiableList(Arrays.asList(
- new Font("DejaVu Sans Mono", Font.PLAIN, 14),
- new Font("Monospaced", Font.PLAIN, 14),
- //Below, these should be redundant (Monospaced is supposed to catch-all)
- // but Java 6 seems to have issues with finding monospaced fonts sometimes
- new Font("Ubuntu Mono", Font.PLAIN, 14),
- new Font("FreeMono", Font.PLAIN, 14),
- new Font("Liberation Mono", Font.PLAIN, 14),
- new Font("VL Gothic Regular", Font.PLAIN, 14),
- new Font("NanumGothic", Font.PLAIN, 14),
- new Font("WenQuanYi Zen Hei Mono", Font.PLAIN, 14),
- new Font("WenQuanYi Zen Hei", Font.PLAIN, 14),
- new Font("AR PL UMing TW", Font.PLAIN, 14),
- new Font("AR PL UMing HK", Font.PLAIN, 14),
- new Font("AR PL UMing CN", Font.PLAIN, 14)));
- }
-
- private static List<Font> getDefaultFonts() {
- return Collections.unmodifiableList(Collections.singletonList(
- new Font("Monospaced", Font.PLAIN, 14)));
- }
-
- protected static Font[] selectDefaultFont() {
- String osName = System.getProperty("os.name", "").toLowerCase();
- if(osName.contains("win")) {
- List<Font> windowsFonts = getDefaultWindowsFonts();
- return windowsFonts.toArray(new Font[windowsFonts.size()]);
- }
- else if(osName.contains("linux")) {
- List<Font> linuxFonts = getDefaultLinuxFonts();
- return linuxFonts.toArray(new Font[linuxFonts.size()]);
- }
- else {
- List<Font> defaultFonts = getDefaultFonts();
- return defaultFonts.toArray(new Font[defaultFonts.size()]);
- }
- }
-
- /**
- * This is the default font settings that will be used if you don't specify anything
- */
- public static AWTTerminalFontConfiguration getDefault() {
- return newInstance(filterMonospaced(selectDefaultFont()));
- }
-
- /**
- * Given an array of fonts, returns another array with only the ones that are monospaced. The fonts in the result
- * will have the same order as in which they came in. A font is considered monospaced if the width of 'i' and 'W' is
- * the same.
- * @param fonts Fonts to filter monospaced fonts from
- * @return Array with the fonts from the input parameter that were monospaced
- */
- public static Font[] filterMonospaced(Font... fonts) {
- List<Font> result = new ArrayList<Font>(fonts.length);
- for(Font font: fonts) {
- if (isFontMonospaced(font)) {
- result.add(font);
- }
- }
- return result.toArray(new Font[result.size()]);
- }
-
- /**
- * Creates a new font configuration from a list of fonts in order of priority. This works by having the terminal
- * attempt to draw each character with the fonts in the order they are specified in and stop once we find a font
- * that can actually draw the character. For ASCII characters, it's very likely that the first font will always be
- * used.
- * @param fontsInOrderOfPriority Fonts to use when drawing text, in order of priority
- * @return Font configuration built from the font list
- */
- @SuppressWarnings("WeakerAccess")
- public static AWTTerminalFontConfiguration newInstance(Font... fontsInOrderOfPriority) {
- return new AWTTerminalFontConfiguration(true, BoldMode.EVERYTHING_BUT_SYMBOLS, fontsInOrderOfPriority);
- }
-
- private final List<Font> fontPriority;
- private final int fontWidth;
- private final int fontHeight;
- private final boolean useAntiAliasing;
- private final BoldMode boldMode;
-
- @SuppressWarnings("WeakerAccess")
- protected AWTTerminalFontConfiguration(boolean useAntiAliasing, BoldMode boldMode, Font... fontsInOrderOfPriority) {
- if(fontsInOrderOfPriority == null || fontsInOrderOfPriority.length == 0) {
- throw new IllegalArgumentException("Must pass in a valid list of fonts to SwingTerminalFontConfiguration");
- }
- this.useAntiAliasing = useAntiAliasing;
- this.boldMode = boldMode;
- this.fontPriority = new ArrayList<Font>(Arrays.asList(fontsInOrderOfPriority));
- this.fontWidth = getFontWidth(fontPriority.get(0));
- this.fontHeight = getFontHeight(fontPriority.get(0));
-
- //Make sure all the fonts are monospace
- for(Font font: fontPriority) {
- if(!isFontMonospaced(font)) {
- throw new IllegalArgumentException("Font " + font + " isn't monospaced!");
- }
- }
-
- //Make sure all lower-priority fonts are less or equal in width and height, shrink if necessary
- for(int i = 1; i < fontPriority.size(); i++) {
- Font font = fontPriority.get(i);
- while(getFontWidth(font) > fontWidth || getFontHeight(font) > fontHeight) {
- float newSize = font.getSize2D() - 0.5f;
- if(newSize < 0.01) {
- throw new IllegalStateException("Unable to shrink font " + (i+1) + " to fit the size of highest priority font " + fontPriority.get(0));
- }
- font = font.deriveFont(newSize);
- fontPriority.set(i, font);
- }
- }
- }
-
- Font getFontForCharacter(TextCharacter character) {
- Font normalFont = getFontForCharacter(character.getCharacter());
- if(boldMode == BoldMode.EVERYTHING || (boldMode == BoldMode.EVERYTHING_BUT_SYMBOLS && isNotASymbol(character.getCharacter()))) {
- if(character.isBold()) {
- normalFont = normalFont.deriveFont(Font.BOLD);
- }
- }
- return normalFont;
- }
-
- private Font getFontForCharacter(char c) {
- for(Font font: fontPriority) {
- if(font.canDisplay(c)) {
- return font;
- }
- }
- //No available font here, what to do...?
- return fontPriority.get(0);
- }
-
- int getFontWidth() {
- return fontWidth;
- }
-
- int getFontHeight() {
- return fontHeight;
- }
-
- boolean isAntiAliased() {
- return useAntiAliasing;
- }
-
- private static boolean isFontMonospaced(Font font) {
- if(MONOSPACE_CHECK_OVERRIDE.contains(font.getName())) {
- return true;
- }
- FontRenderContext frc = new FontRenderContext(
- null,
- RenderingHints.VALUE_TEXT_ANTIALIAS_OFF,
- RenderingHints.VALUE_FRACTIONALMETRICS_DEFAULT);
- Rectangle2D iBounds = font.getStringBounds("i", frc);
- Rectangle2D mBounds = font.getStringBounds("W", frc);
- return iBounds.getWidth() == mBounds.getWidth();
- }
-
- private int getFontWidth(Font font) {
- return (int)font.getStringBounds("W", getFontRenderContext()).getWidth();
- }
-
- private int getFontHeight(Font font) {
- return (int)font.getStringBounds("W", getFontRenderContext()).getHeight();
- }
-
- private FontRenderContext getFontRenderContext() {
- return new FontRenderContext(
- null,
- useAntiAliasing ?
- RenderingHints.VALUE_TEXT_ANTIALIAS_ON : RenderingHints.VALUE_TEXT_ANTIALIAS_OFF,
- RenderingHints.VALUE_FRACTIONALMETRICS_DEFAULT);
- }
-
-
- private static final Set<Character> SYMBOLS_CACHE = new HashSet<Character>();
- static {
- for(Field field: Symbols.class.getFields()) {
- if(field.getType() == char.class &&
- (field.getModifiers() & Modifier.FINAL) != 0 &&
- (field.getModifiers() & Modifier.STATIC) != 0) {
- try {
- SYMBOLS_CACHE.add(field.getChar(null));
- }
- catch(IllegalArgumentException ignore) {
- //Should never happen!
- }
- catch(IllegalAccessException ignore) {
- //Should never happen!
- }
- }
- }
- }
-
- private boolean isNotASymbol(char character) {
- return !SYMBOLS_CACHE.contains(character);
- }
-}
git://git.nikiroo.be / jvcard.git / blobdiff