-/**
+/*
* Jexer - Java Text User Interface
*
- * License: LGPLv3 or later
- *
- * This module is licensed under the GNU Lesser General Public License
- * Version 3. Please see the file "COPYING" in this directory for more
- * information about the GNU Lesser General Public License Version 3.
+ * The MIT License (MIT)
*
- * Copyright (C) 2015 Kevin Lamonte
+ * Copyright (C) 2017 Kevin Lamonte
*
- * This program 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.
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
*
- * 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
- * General Public License for more details.
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
*
- * 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/, or write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
*
* @author Kevin Lamonte [kevin.lamonte@gmail.com]
* @version 1
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;
public final class SwingScreen extends Screen {
/**
- * If true, use double buffering thread.
+ * If true, use triple buffering thread.
*/
- private static final boolean doubleBuffer = true;
+ private static boolean tripleBuffer = true;
/**
* Cursor style to draw.
private static final String FONTFILE = "terminus-ttf-4.39/TerminusTTF-Bold-4.39.ttf";
/**
- * The BufferStrategy object needed for double-buffering.
+ * The BufferStrategy object needed for triple-buffering.
*/
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());
}
/**
* Public constructor.
*
* @param screen the Screen that Backend talks to
+ * @param fontSize the size in points. Good values to pick are: 16,
+ * 20, 22, and 24.
*/
- public SwingFrame(final SwingScreen screen) {
+ public SwingFrame(final SwingScreen screen, final int fontSize) {
this.screen = screen;
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, fontSize);
setFont(terminus);
+ gotTerminus = true;
} catch (Exception e) {
e.printStackTrace();
// setFont(new Font("Liberation Mono", Font.PLAIN, 24));
- setFont(new Font(Font.MONOSPACED, Font.PLAIN, 24));
+ setFont(new Font(Font.MONOSPACED, Font.PLAIN, fontSize));
}
pack();
// Save the text cell width/height
getFontDimensions();
- // Setup double-buffering
- if (SwingScreen.doubleBuffer) {
+ // Cache glyphs as they are rendered
+ glyphCacheBlink = new HashMap<Cell, BufferedImage>();
+ glyphCache = new HashMap<Cell, BufferedImage>();
+
+ // Setup triple-buffering
+ if (SwingScreen.tripleBuffer) {
setIgnoreRepaint(true);
- createBufferStrategy(2);
+ createBufferStrategy(3);
bufferStrategy = getBufferStrategy();
}
}
+ /**
+ * 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.
*
|| lCell.isBlink()
|| reallyCleared) {
- Cell lCellColor = new Cell();
- 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) {
- 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;
/**
* Public constructor.
+ *
+ * @param windowWidth the number of text columns to start with
+ * @param windowHeight the number of text rows to start with
+ * @param fontSize the size in points. Good values to pick are: 16, 20,
+ * 22, and 24.
*/
- public SwingScreen() {
+ public SwingScreen(final int windowWidth, final int windowHeight,
+ final int fontSize) {
+
try {
SwingUtilities.invokeAndWait(new Runnable() {
public void run() {
- SwingScreen.this.frame = new SwingFrame(SwingScreen.this);
+ SwingScreen.this.frame = new SwingFrame(SwingScreen.this,
+ fontSize);
SwingScreen.this.sessionInfo =
new SwingSessionInfo(SwingScreen.this.frame,
- frame.textWidth,
- frame.textHeight);
+ frame.textWidth, frame.textHeight,
+ windowWidth, windowHeight);
SwingScreen.this.setDimensions(sessionInfo.getWindowWidth(),
sessionInfo.getWindowHeight());
SwingScreen.this.frame.resizeToScreen();
SwingScreen.this.frame.setVisible(true);
}
- } );
+ });
} catch (Exception e) {
e.printStackTrace();
}
@Override
public void flushPhysical() {
- if (reallyCleared) {
- // Really refreshed, do it all
- if (SwingScreen.doubleBuffer) {
- Graphics gr = frame.bufferStrategy.getDrawGraphics();
- frame.paint(gr);
- gr.dispose();
- frame.bufferStrategy.show();
- Toolkit.getDefaultToolkit().sync();
- } else {
- frame.repaint();
- }
+ /*
+ System.err.printf("flushPhysical(): reallyCleared %s dirty %s\n",
+ reallyCleared, dirty);
+ */
+
+ // If reallyCleared is set, we have to draw everything.
+ if ((frame.bufferStrategy != null) && (reallyCleared == true)) {
+ // Triple-buffering: we have to redraw everything on this thread.
+ Graphics gr = frame.bufferStrategy.getDrawGraphics();
+ frame.paint(gr);
+ gr.dispose();
+ frame.bufferStrategy.show();
+ // sync() doesn't seem to help the tearing for me.
+ // Toolkit.getDefaultToolkit().sync();
+ return;
+ } else if ((frame.bufferStrategy == null) && (reallyCleared == true)) {
+ // Repaint everything on the Swing thread.
+ frame.repaint();
return;
}
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();
}
// Repaint the desired area
- // System.err.printf("REPAINT X %d %d Y %d %d\n", xMin, xMax,
- // yMin, yMax);
- if (SwingScreen.doubleBuffer) {
+ /*
+ System.err.printf("REPAINT X %d %d Y %d %d\n", xMin, xMax,
+ 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);
frame.paint(gr);
gr.dispose();
frame.bufferStrategy.show();
- Toolkit.getDefaultToolkit().sync();
+ // 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