*
* The MIT License (MIT)
*
- * Copyright (C) 2016 Kevin Lamonte
+ * Copyright (C) 2017 Kevin Lamonte
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
+import java.awt.Graphics2D;
import java.awt.Insets;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.image.BufferStrategy;
import java.io.InputStream;
import java.util.Date;
+import java.util.HashMap;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
/**
* If true, use triple buffering thread.
*/
- private static final boolean tripleBuffer = true;
+ private static boolean tripleBuffer = true;
/**
* Cursor style to draw.
*/
private BufferStrategy bufferStrategy;
+ /**
+ * A cache of previously-rendered glyphs for blinking text, when it
+ * is not visible.
+ */
+ private HashMap<Cell, BufferedImage> glyphCacheBlink;
+
+ /**
+ * A cache of previously-rendered glyphs for non-blinking, or
+ * blinking-and-visible, text.
+ */
+ private HashMap<Cell, BufferedImage> glyphCache;
+
/**
* The TUI Screen data.
*/
SwingScreen screen;
+ /**
+ * If true, we were successful getting Terminus.
+ */
+ private boolean gotTerminus = false;
+
/**
* Width of a character cell.
*/
return MYWHITE;
}
}
- throw new IllegalArgumentException("Invalid color: " + attr.getForeColor().getValue());
+ throw new IllegalArgumentException("Invalid color: " +
+ attr.getForeColor().getValue());
}
/**
} else if (attr.getBackColor().equals(jexer.bits.Color.WHITE)) {
return MYWHITE;
}
- throw new IllegalArgumentException("Invalid color: " + attr.getBackColor().getValue());
+ throw new IllegalArgumentException("Invalid color: " +
+ attr.getBackColor().getValue());
}
/**
setDOSColors();
// Figure out my cursor style
- String cursorStyleString = System.getProperty("jexer.Swing.cursorStyle",
- "underline").toLowerCase();
+ String cursorStyleString = System.getProperty(
+ "jexer.Swing.cursorStyle", "underline").toLowerCase();
if (cursorStyleString.equals("underline")) {
cursorStyle = CursorStyle.UNDERLINE;
cursorStyle = CursorStyle.BLOCK;
}
+ if (System.getProperty("jexer.Swing.tripleBuffer") != null) {
+ if (System.getProperty("jexer.Swing.tripleBuffer").
+ equals("false")) {
+
+ SwingScreen.tripleBuffer = false;
+ }
+ }
+
setTitle("Jexer Application");
setBackground(Color.black);
try {
// Always try to use Terminus, the one decent font.
- ClassLoader loader = Thread.currentThread().getContextClassLoader();
+ ClassLoader loader = Thread.currentThread().
+ getContextClassLoader();
InputStream in = loader.getResourceAsStream(FONTFILE);
Font terminusRoot = Font.createFont(Font.TRUETYPE_FONT, in);
- Font terminus = terminusRoot.deriveFont(Font.PLAIN, 22);
+ Font terminus = terminusRoot.deriveFont(Font.PLAIN, 20);
setFont(terminus);
+ gotTerminus = true;
} catch (Exception e) {
e.printStackTrace();
// setFont(new Font("Liberation Mono", Font.PLAIN, 24));
// Save the text cell width/height
getFontDimensions();
+ // Cache glyphs as they are rendered
+ glyphCacheBlink = new HashMap<Cell, BufferedImage>();
+ glyphCache = new HashMap<Cell, BufferedImage>();
+
// Setup triple-buffering
if (SwingScreen.tripleBuffer) {
setIgnoreRepaint(true);
}
}
+ /**
+ * Figure out what textAdjustX and textAdjustY should be, based on
+ * the location of a vertical bar (to find textAdjustY) and a
+ * horizontal bar (to find textAdjustX).
+ *
+ * @return true if textAdjustX and textAdjustY were guessed at
+ * correctly
+ */
+ private boolean getFontAdjustments() {
+ BufferedImage image = null;
+
+ // What SHOULD happen is that the topmost/leftmost white pixel is
+ // at position (gr2x, gr2y). But it might also be off by a pixel
+ // in either direction.
+
+ Graphics2D gr2 = null;
+ int gr2x = 3;
+ int gr2y = 3;
+ image = new BufferedImage(textWidth * 2, textHeight * 2,
+ BufferedImage.TYPE_INT_ARGB);
+
+ gr2 = image.createGraphics();
+ gr2.setFont(getFont());
+ gr2.setColor(java.awt.Color.BLACK);
+ gr2.fillRect(0, 0, textWidth * 2, textHeight * 2);
+ gr2.setColor(java.awt.Color.WHITE);
+ char [] chars = new char[1];
+ chars[0] = jexer.bits.GraphicsChars.VERTICAL_BAR;
+ gr2.drawChars(chars, 0, 1, gr2x, gr2y + textHeight - maxDescent);
+ gr2.dispose();
+
+ for (int x = 0; x < textWidth; x++) {
+ for (int y = 0; y < textHeight; y++) {
+
+ /*
+ System.err.println("X: " + x + " Y: " + y + " " +
+ image.getRGB(x, y));
+ */
+
+ if ((image.getRGB(x, y) & 0xFFFFFF) != 0) {
+ textAdjustY = (gr2y - y);
+
+ // System.err.println("textAdjustY: " + textAdjustY);
+ x = textWidth;
+ break;
+ }
+ }
+ }
+
+ gr2 = image.createGraphics();
+ gr2.setFont(getFont());
+ gr2.setColor(java.awt.Color.BLACK);
+ gr2.fillRect(0, 0, textWidth * 2, textHeight * 2);
+ gr2.setColor(java.awt.Color.WHITE);
+ chars[0] = jexer.bits.GraphicsChars.SINGLE_BAR;
+ gr2.drawChars(chars, 0, 1, gr2x, gr2y + textHeight - maxDescent);
+ gr2.dispose();
+
+ for (int x = 0; x < textWidth; x++) {
+ for (int y = 0; y < textHeight; y++) {
+
+ /*
+ System.err.println("X: " + x + " Y: " + y + " " +
+ image.getRGB(x, y));
+ */
+
+ if ((image.getRGB(x, y) & 0xFFFFFF) != 0) {
+ textAdjustX = (gr2x - x);
+
+ // System.err.println("textAdjustX: " + textAdjustX);
+ return true;
+ }
+ }
+ }
+
+ // Something weird happened, don't rely on this function.
+ // System.err.println("getFontAdjustments: false");
+ return false;
+ }
+
+
/**
* Figure out my font dimensions.
*/
Rectangle2D bounds = fm.getMaxCharBounds(gr);
int leading = fm.getLeading();
textWidth = (int)Math.round(bounds.getWidth());
- textHeight = (int)Math.round(bounds.getHeight()) - maxDescent;
- // This also produces the same number, but works better for ugly
+ // textHeight = (int)Math.round(bounds.getHeight()) - maxDescent;
+
+ // This produces the same number, but works better for ugly
// monospace.
textHeight = fm.getMaxAscent() + maxDescent - leading;
- if (System.getProperty("os.name").startsWith("Windows")) {
- textAdjustY = -1;
- textAdjustX = 0;
+ if (gotTerminus == true) {
+ textHeight++;
+ }
+
+ if (getFontAdjustments() == false) {
+ // We were unable to programmatically determine textAdjustX
+ // and textAdjustY, so try some guesses based on VM vendor.
+ String runtime = System.getProperty("java.runtime.name");
+ if ((runtime != null) && (runtime.contains("Java(TM)"))) {
+ textAdjustY = -1;
+ textAdjustX = 0;
+ }
}
}
paint(gr);
}
+ /**
+ * Draw one glyph to the screen.
+ *
+ * @param gr the Swing Graphics context
+ * @param cell the Cell to draw
+ * @param xPixel the x-coordinate to render to. 0 means the
+ * left-most pixel column.
+ * @param yPixel the y-coordinate to render to. 0 means the top-most
+ * pixel row.
+ */
+ private void drawGlyph(final Graphics gr, final Cell cell,
+ final int xPixel, final int yPixel) {
+
+ BufferedImage image = null;
+ if (cell.isBlink() && !cursorBlinkVisible) {
+ image = glyphCacheBlink.get(cell);
+ } else {
+ image = glyphCache.get(cell);
+ }
+ if (image != null) {
+ gr.drawImage(image, xPixel, yPixel, this);
+ return;
+ }
+
+ // Generate glyph and draw it.
+ Graphics2D gr2 = null;
+ int gr2x = xPixel;
+ int gr2y = yPixel;
+ if (tripleBuffer) {
+ image = new BufferedImage(textWidth, textHeight,
+ BufferedImage.TYPE_INT_ARGB);
+ gr2 = image.createGraphics();
+ gr2.setFont(getFont());
+ gr2x = 0;
+ gr2y = 0;
+ } else {
+ gr2 = (Graphics2D) gr;
+ }
+
+ Cell cellColor = new Cell();
+ cellColor.setTo(cell);
+
+ // Check for reverse
+ if (cell.isReverse()) {
+ cellColor.setForeColor(cell.getBackColor());
+ cellColor.setBackColor(cell.getForeColor());
+ }
+
+ // Draw the background rectangle, then the foreground character.
+ gr2.setColor(attrToBackgroundColor(cellColor));
+ gr2.fillRect(gr2x, gr2y, textWidth, textHeight);
+
+ // Handle blink and underline
+ if (!cell.isBlink()
+ || (cell.isBlink() && cursorBlinkVisible)
+ ) {
+ gr2.setColor(attrToForegroundColor(cellColor));
+ char [] chars = new char[1];
+ chars[0] = cell.getChar();
+ gr2.drawChars(chars, 0, 1, gr2x + textAdjustX,
+ gr2y + textHeight - maxDescent + textAdjustY);
+
+ if (cell.isUnderline()) {
+ gr2.fillRect(gr2x, gr2y + textHeight - 2, textWidth, 2);
+ }
+ }
+
+ if (tripleBuffer) {
+ gr2.dispose();
+
+ // We need a new key that will not be mutated by
+ // invertCell().
+ Cell key = new Cell();
+ key.setTo(cell);
+ if (cell.isBlink() && !cursorBlinkVisible) {
+ glyphCacheBlink.put(key, image);
+ } else {
+ glyphCache.put(key, image);
+ }
+
+ gr.drawImage(image, xPixel, yPixel, this);
+ }
+
+ }
+
+ /**
+ * Check if the cursor is visible, and if so draw it.
+ *
+ * @param gr the Swing Graphics context
+ */
+ private void drawCursor(final Graphics gr) {
+
+ if (cursorVisible
+ && (cursorY <= screen.height - 1)
+ && (cursorX <= screen.width - 1)
+ && cursorBlinkVisible
+ ) {
+ int xPixel = cursorX * textWidth + left;
+ int yPixel = cursorY * textHeight + top;
+ Cell lCell = screen.logical[cursorX][cursorY];
+ gr.setColor(attrToForegroundColor(lCell));
+ switch (cursorStyle) {
+ default:
+ // Fall through...
+ case UNDERLINE:
+ gr.fillRect(xPixel, yPixel + textHeight - 2, textWidth, 2);
+ break;
+ case BLOCK:
+ gr.fillRect(xPixel, yPixel, textWidth, textHeight);
+ break;
+ case OUTLINE:
+ gr.drawRect(xPixel, yPixel, textWidth - 1, textHeight - 1);
+ break;
+ }
+ }
+ }
+
/**
* Paint redraws the whole screen.
*
// Prevent updates to the screen's data from the TApplication
// threads.
synchronized (screen) {
-
/*
System.err.printf("bounds %s X %d %d Y %d %d\n",
bounds, xCellMin, xCellMax, yCellMin, yCellMax);
*/
- Cell lCellColor = new Cell();
for (int y = yCellMin; y < yCellMax; y++) {
for (int x = xCellMin; x < xCellMax; x++) {
|| lCell.isBlink()
|| reallyCleared) {
- lCellColor.setTo(lCell);
-
- // Check for reverse
- if (lCell.isReverse()) {
- lCellColor.setForeColor(lCell.getBackColor());
- lCellColor.setBackColor(lCell.getForeColor());
- }
-
- // Draw the background rectangle, then the
- // foreground character.
- gr.setColor(attrToBackgroundColor(lCellColor));
- gr.fillRect(xPixel, yPixel, textWidth, textHeight);
-
- // Handle blink and underline
- if (!lCell.isBlink()
- || (lCell.isBlink() && cursorBlinkVisible)
- ) {
- gr.setColor(attrToForegroundColor(lCellColor));
- char [] chars = new char[1];
- chars[0] = lCell.getChar();
- gr.drawChars(chars, 0, 1, xPixel + textAdjustX,
- yPixel + textHeight - maxDescent
- + textAdjustY);
-
- if (lCell.isUnderline()) {
- gr.fillRect(xPixel, yPixel + textHeight - 2,
- textWidth, 2);
- }
- }
+ drawGlyph(gr, lCell, xPixel, yPixel);
// Physical is always updated
physical[x][y].setTo(lCell);
}
}
}
-
- // Draw the cursor if it is visible
- if (cursorVisible
- && (cursorY <= screen.height - 1)
- && (cursorX <= screen.width - 1)
- && cursorBlinkVisible
- ) {
- int xPixel = cursorX * textWidth + left;
- int yPixel = cursorY * textHeight + top;
- Cell lCell = screen.logical[cursorX][cursorY];
- gr.setColor(attrToForegroundColor(lCell));
- switch (cursorStyle) {
- default:
- // Fall through...
- case UNDERLINE:
- gr.fillRect(xPixel, yPixel + textHeight - 2,
- textWidth, 2);
- break;
- case BLOCK:
- gr.fillRect(xPixel, yPixel, textWidth, textHeight);
- break;
- case OUTLINE:
- gr.drawRect(xPixel, yPixel, textWidth - 1,
- textHeight - 1);
- break;
- }
- }
+ drawCursor(gr);
dirty = false;
reallyCleared = false;
return;
}
- // Request a repaint, let the frame's repaint/update methods do the
- // right thing.
+ if (frame.bufferStrategy != null) {
+ // See if it is time to flip the blink time.
+ long nowTime = (new Date()).getTime();
+ if (nowTime > frame.blinkMillis + frame.lastBlinkTime) {
+ frame.lastBlinkTime = nowTime;
+ frame.cursorBlinkVisible = !frame.cursorBlinkVisible;
+ }
+
+ Graphics gr = frame.bufferStrategy.getDrawGraphics();
+
+ synchronized (this) {
+ for (int y = 0; y < height; y++) {
+ for (int x = 0; x < width; x++) {
+ Cell lCell = logical[x][y];
+ Cell pCell = physical[x][y];
+
+ int xPixel = x * frame.textWidth + frame.left;
+ int yPixel = y * frame.textHeight + frame.top;
+
+ if (!lCell.equals(pCell)
+ || ((x == cursorX)
+ && (y == cursorY)
+ && cursorVisible)
+ || (lCell.isBlink())
+ ) {
+ frame.drawGlyph(gr, lCell, xPixel, yPixel);
+ physical[x][y].setTo(lCell);
+ }
+ }
+ }
+ frame.drawCursor(gr);
+ } // synchronized (this)
+
+ gr.dispose();
+ frame.bufferStrategy.show();
+ // sync() doesn't seem to help the tearing for me.
+ // Toolkit.getDefaultToolkit().sync();
+ return;
+ }
+
+ // Swing thread version: request a repaint, but limit it to the area
+ // that has changed.
// Find the minimum-size damaged region.
int xMin = frame.getWidth();
yMin, yMax);
*/
if (frame.bufferStrategy != null) {
+ // This path should never be taken, but is left here for
+ // completeness.
Graphics gr = frame.bufferStrategy.getDrawGraphics();
Rectangle bounds = new Rectangle(xMin, yMin, xMax - xMin,
yMax - yMin);
// sync() doesn't seem to help the tearing for me.
// Toolkit.getDefaultToolkit().sync();
} else {
+ // Repaint on the Swing thread.
frame.repaint(xMin, yMin, xMax - xMin, yMax - yMin);
}
}
return ((y - frame.top) / frame.textHeight);
}
+ /**
+ * Set the window title.
+ *
+ * @param title the new title
+ */
+ public void setTitle(final String title) {
+ frame.setTitle(title);
+ }
+
}
git://git.nikiroo.be / nikiroo-utils.git / blobdiff