import jexer.bits.Cell;
import jexer.bits.CellAttributes;
+import jexer.session.AWTSessionInfo;
import java.awt.Color;
import java.awt.Cursor;
import java.awt.Font;
import java.awt.FontMetrics;
-import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Insets;
+import java.awt.Point;
+import java.awt.Rectangle;
+import java.awt.Toolkit;
import java.awt.geom.Rectangle2D;
+import java.awt.image.BufferedImage;
import java.io.InputStream;
+import javax.swing.JFrame;
+import javax.swing.SwingUtilities;
/**
* This Screen implementation draws to a Java AWT Frame.
/**
* AWTFrame is our top-level hook into the AWT system.
*/
- class AWTFrame extends Frame {
+ class AWTFrame extends JFrame {
+
+ /**
+ * Serializable version.
+ */
+ private static final long serialVersionUID = 1;
/**
* The terminus font resource filename.
setDOSColors();
setTitle("Jexer Application");
- setBackground(java.awt.Color.black);
- setCursor(Cursor.getPredefinedCursor(Cursor.TEXT_CURSOR));
+ setBackground(Color.black);
+ // setCursor(Cursor.getPredefinedCursor(Cursor.TEXT_CURSOR));
// setFont(new Font("Liberation Mono", Font.BOLD, 16));
// setFont(new Font(Font.MONOSPACED, Font.PLAIN, 16));
try {
+ // Always try to use Terminus, the one decent font.
ClassLoader loader = Thread.currentThread().getContextClassLoader();
InputStream in = loader.getResourceAsStream(FONTFILE);
Font terminusRoot = Font.createFont(Font.TRUETYPE_FONT, in);
// setFont(new Font("Liberation Mono", Font.PLAIN, 24));
setFont(new Font(Font.MONOSPACED, Font.PLAIN, 24));
}
- setVisible(true);
- resizeToScreen();
+ pack();
+
+ // Kill the X11 cursor
+ // Transparent 16 x 16 pixel cursor image.
+ BufferedImage cursorImg = new BufferedImage(16, 16,
+ BufferedImage.TYPE_INT_ARGB);
+
+ // Create a new blank cursor.
+ Cursor blankCursor = Toolkit.getDefaultToolkit().createCustomCursor(
+ cursorImg, new Point(0, 0), "blank cursor");
+ setCursor(blankCursor);
+ getFontDimensions();
}
/**
- * Resize to font dimensions.
+ * Figure out my font dimensions.
*/
- public void resizeToScreen() {
+ private void getFontDimensions() {
Graphics gr = getGraphics();
FontMetrics fm = gr.getFontMetrics();
maxDescent = fm.getMaxDescent();
// This also produces the same number, but works better for ugly
// monospace.
textHeight = fm.getMaxAscent() + maxDescent - leading;
+ }
+ /**
+ * Resize to font dimensions.
+ */
+ public void resizeToScreen() {
// Figure out the thickness of borders and use that to set the
// final size.
Insets insets = getInsets();
setSize(textWidth * screen.width + insets.left + insets.right,
textHeight * screen.height + insets.top + insets.bottom);
+ }
- /*
- System.err.printf("W: %d H: %d MD: %d L: %d\n", textWidth,
- textHeight, maxDescent, leading);
- */
+ /**
+ * Update redraws the whole screen.
+ *
+ * @param gr the AWT Graphics context
+ */
+ @Override
+ public void update(final Graphics gr) {
+ // The default update clears the area. Don't do that, instead
+ // just paint it directly.
+ paint(gr);
}
/**
*/
@Override
public void paint(final Graphics gr) {
+ // Do nothing until the screen reference has been set.
+ if (screen == null) {
+ return;
+ }
+ if (screen.frame == null) {
+ return;
+ }
- for (int y = 0; y < screen.height; y++) {
- for (int x = 0; x < screen.width; x++) {
- Cell lCell = screen.logical[x][y];
- Cell pCell = screen.physical[x][y];
-
- int xPixel = x * textWidth + left;
- int yPixel = y * textHeight + top;
-
- if (!lCell.equals(pCell)) {
-
- // Draw the background rectangle, then the foreground
- // character.
- gr.setColor(attrToBackgroundColor(lCell));
- gr.fillRect(xPixel, yPixel, textWidth, textHeight);
- gr.setColor(attrToForegroundColor(lCell));
- char [] chars = new char[1];
- chars[0] = lCell.getChar();
- gr.drawChars(chars, 0, 1, xPixel,
- yPixel + textHeight - maxDescent);
+ int xCellMin = 0;
+ int xCellMax = screen.width;
+ int yCellMin = 0;
+ int yCellMax = screen.height;
+
+ Rectangle bounds = gr.getClipBounds();
+ if (bounds != null) {
+ // Only update what is in the bounds
+ xCellMin = screen.textColumn(bounds.x);
+ xCellMax = screen.textColumn(bounds.x + bounds.width);
+ if (xCellMax > screen.width) {
+ xCellMax = screen.width;
+ }
+ if (xCellMin >= xCellMax) {
+ xCellMin = xCellMax - 2;
+ }
+ if (xCellMin < 0) {
+ xCellMin = 0;
+ }
+ yCellMin = screen.textRow(bounds.y);
+ yCellMax = screen.textRow(bounds.y + bounds.height);
+ if (yCellMax > screen.height) {
+ yCellMax = screen.height;
+ }
+ if (yCellMin >= yCellMax) {
+ yCellMin = yCellMax - 2;
+ }
+ if (yCellMin < 0) {
+ yCellMin = 0;
+ }
+ } else {
+ // We need a total repaint
+ reallyCleared = true;
+ }
- // Physical is always updated
- physical[x][y].setTo(lCell);
+ // 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);
+ */
+
+ for (int y = yCellMin; y < yCellMax; y++) {
+ for (int x = xCellMin; x < xCellMax; x++) {
+
+ int xPixel = x * textWidth + left;
+ int yPixel = y * textHeight + top;
+
+ Cell lCell = screen.logical[x][y];
+ Cell pCell = screen.physical[x][y];
+
+ if (!lCell.equals(pCell) || reallyCleared) {
+ // Draw the background rectangle, then the
+ // foreground character.
+ gr.setColor(attrToBackgroundColor(lCell));
+ gr.fillRect(xPixel, yPixel, textWidth, textHeight);
+ gr.setColor(attrToForegroundColor(lCell));
+ char [] chars = new char[1];
+ chars[0] = lCell.getChar();
+ gr.drawChars(chars, 0, 1, xPixel,
+ yPixel + textHeight - maxDescent);
+
+ // 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)
+ ) {
+ int xPixel = cursorX * textWidth + left;
+ int yPixel = cursorY * textHeight + top;
+ Cell lCell = screen.logical[cursorX][cursorY];
+ gr.setColor(attrToForegroundColor(lCell));
+ gr.fillRect(xPixel, yPixel + textHeight - 2, textWidth, 2);
+ }
+
+ dirty = false;
+ reallyCleared = false;
+ } // synchronized (screen)
}
- }
+
+ } // class AWTFrame
/**
* The raw AWT Frame. Note package private access.
* Public constructor.
*/
public AWTScreen() {
- frame = new AWTFrame(this);
+ try {
+ SwingUtilities.invokeAndWait(new Runnable() {
+ public void run() {
+ AWTScreen.this.frame = new AWTFrame(AWTScreen.this);
+ AWTScreen.this.sessionInfo =
+ new AWTSessionInfo(AWTScreen.this.frame,
+ frame.textWidth,
+ frame.textHeight);
+
+ AWTScreen.this.setDimensions(sessionInfo.getWindowWidth(),
+ sessionInfo.getWindowHeight());
+
+ AWTScreen.this.frame.resizeToScreen();
+ AWTScreen.this.frame.setVisible(true);
+ }
+ } );
+ } catch (Exception e) {
+ e.printStackTrace();
+ }
+ }
+
+ /**
+ * The sessionInfo.
+ */
+ private AWTSessionInfo sessionInfo;
+
+ /**
+ * Create the AWTSessionInfo. Note package private access.
+ *
+ * @return the sessionInfo
+ */
+ AWTSessionInfo getSessionInfo() {
+ return sessionInfo;
}
/**
*/
@Override
public void flushPhysical() {
- Graphics gr = frame.getGraphics();
- frame.paint(gr);
+
+ if (reallyCleared) {
+ // Really refreshed, do it all
+ frame.repaint();
+ return;
+ }
+
+ // Do nothing if nothing happened.
+ if (!dirty) {
+ return;
+ }
+
+ // Request a repaint, let the frame's repaint/update methods do the
+ // right thing.
+
+ // Find the minimum-size damaged region.
+ int xMin = frame.getWidth();
+ int xMax = 0;
+ int yMin = frame.getHeight();
+ int yMax = 0;
+
+ 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)
+ ) {
+ if (xPixel < xMin) {
+ xMin = xPixel;
+ }
+ if (xPixel + frame.textWidth > xMax) {
+ xMax = xPixel + frame.textWidth;
+ }
+ if (yPixel < yMin) {
+ yMin = yPixel;
+ }
+ if (yPixel + frame.textHeight > yMax) {
+ yMax = yPixel + frame.textHeight;
+ }
+ }
+ }
+ }
+ }
+ if (xMin + frame.textWidth >= xMax) {
+ xMax += frame.textWidth;
+ }
+ if (yMin + frame.textHeight >= yMax) {
+ yMax += frame.textHeight;
+ }
+
+ // Repaint the desired area
+ frame.repaint(xMin, yMin, xMax - xMin, yMax - yMin);
+ // System.err.printf("REPAINT X %d %d Y %d %d\n", xMin, xMax, yMin, yMax);
+ }
+
+ /**
+ * Put the cursor at (x,y).
+ *
+ * @param visible if true, the cursor should be visible
+ * @param x column coordinate to put the cursor on
+ * @param y row coordinate to put the cursor on
+ */
+ @Override
+ public void putCursor(final boolean visible, final int x, final int y) {
+ if ((cursorVisible)
+ && (cursorY <= height - 1)
+ && (cursorX <= width - 1)
+ ) {
+ // Make the current cursor position dirty
+ if (physical[cursorX][cursorY].getChar() == 'Q') {
+ physical[cursorX][cursorY].setChar('X');
+ } else {
+ physical[cursorX][cursorY].setChar('Q');
+ }
+ }
+
+ super.putCursor(visible, x, y);
}
+
+ /**
+ * Convert pixel column position to text cell column position.
+ *
+ * @param x pixel column position
+ * @return text cell column position
+ */
+ public int textColumn(final int x) {
+ return ((x - frame.left) / frame.textWidth);
+ }
+
+ /**
+ * Convert pixel row position to text cell row position.
+ *
+ * @param y pixel row position
+ * @return text cell row position
+ */
+ public int textRow(final int y) {
+ return ((y - frame.top) / frame.textHeight);
+ }
+
}
git://git.nikiroo.be / nikiroo-utils.git / blobdiff