#35 wip
[fanfix.git] / src / jexer / TTerminalWindow.java
index d17a2c4cdd53b3564fbb952276834f35822146b3..6d06fc88530f4d698c99d6dc8c5244949e0df1cc 100644 (file)
  */
 package jexer;
 
-import java.awt.image.BufferedImage;
 import java.awt.Font;
 import java.awt.FontMetrics;
 import java.awt.Graphics2D;
+import java.awt.image.BufferedImage;
 
 import java.io.InputStream;
 import java.io.IOException;
@@ -44,6 +44,7 @@ import java.util.Map;
 import java.util.ResourceBundle;
 
 import jexer.backend.ECMA48Terminal;
+import jexer.backend.GlyphMaker;
 import jexer.backend.MultiScreen;
 import jexer.backend.SwingTerminal;
 import jexer.bits.Cell;
@@ -96,26 +97,9 @@ public class TTerminalWindow extends TScrollableWindow
     private boolean closeOnExit = false;
 
     /**
-     * System-dependent Y adjustment for text in the character cell
-     * (double-height).
-     */
-    private int doubleTextAdjustY = 0;
-
-    /**
-     * System-dependent X adjustment for text in the character cell
-     * (double-height).
-     */
-    private int doubleTextAdjustX = 0;
-
-    /**
-     * Descent of a character cell in pixels (double-height).
-     */
-    private int doubleMaxDescent = 0;
-
-    /**
-     * Double-width font.
+     * Double-height font.
      */
-    private Font doubleFont = null;
+    private GlyphMaker doubleFont;
 
     /**
      * Last text width value.
@@ -128,9 +112,16 @@ public class TTerminalWindow extends TScrollableWindow
     private int lastTextHeight = -1;
 
     /**
-     * A cache of previously-rendered double-width glyphs.
+     * The blink state, used only by ECMA48 backend and when double-width
+     * chars must be drawn.
      */
-    private Map<Cell, BufferedImage> glyphCache;
+    private boolean blinkState = true;
+
+    /**
+     * Timer flag, used only by ECMA48 backend and when double-width chars
+     * must be drawn.
+     */
+    private boolean haveTimer = false;
 
     // ------------------------------------------------------------------------
     // Constructors -----------------------------------------------------------
@@ -368,6 +359,12 @@ public class TTerminalWindow extends TScrollableWindow
                 }
                 for (int i = 0; i < widthMax; i++) {
                     Cell ch = line.charAt(i);
+
+                    if (ch.isImage()) {
+                        putCharXY(i + 1, row, ch);
+                        continue;
+                    }
+
                     Cell newCell = new Cell();
                     newCell.setTo(ch);
                     boolean reverse = line.isReverseColor() ^ ch.isReverse();
@@ -538,13 +535,17 @@ public class TTerminalWindow extends TScrollableWindow
             return;
         }
 
-        if (mouse.isMouseWheelUp()) {
-            verticalDecrement();
-            return;
-        }
-        if (mouse.isMouseWheelDown()) {
-            verticalIncrement();
-            return;
+        // If the emulator is tracking mouse buttons, it needs to see wheel
+        // events.
+        if (emulator.getMouseProtocol() == ECMA48.MouseProtocol.OFF) {
+            if (mouse.isMouseWheelUp()) {
+                verticalDecrement();
+                return;
+            }
+            if (mouse.isMouseWheelDown()) {
+                verticalIncrement();
+                return;
+            }
         }
         if (mouseOnEmulator(mouse)) {
             synchronized (emulator) {
@@ -749,6 +750,10 @@ public class TTerminalWindow extends TScrollableWindow
 
         // Add shortcut text
         newStatusBar(i18n.getString("statusBarRunning"));
+
+        // Pass the correct text cell width/height to the emulator
+        emulator.setTextWidth(getScreen().getTextWidth());
+        emulator.setTextHeight(getScreen().getTextHeight());
     }
 
     /**
@@ -929,19 +934,24 @@ public class TTerminalWindow extends TScrollableWindow
     private void putDoubleWidthCharXY(final DisplayLine line, final int x,
         final int y, final Cell cell) {
 
-        int textWidth = 16;
-        int textHeight = 20;
+        int textWidth = getScreen().getTextWidth();
+        int textHeight = getScreen().getTextHeight();
+        boolean cursorBlinkVisible = true;
 
         if (getScreen() instanceof SwingTerminal) {
             SwingTerminal terminal = (SwingTerminal) getScreen();
-
-            textWidth = terminal.getTextWidth();
-            textHeight = terminal.getTextHeight();
+            cursorBlinkVisible = terminal.getCursorBlinkVisible();
         } else if (getScreen() instanceof ECMA48Terminal) {
             ECMA48Terminal terminal = (ECMA48Terminal) getScreen();
 
-            textWidth = terminal.getTextWidth();
-            textHeight = terminal.getTextHeight();
+            if (!terminal.hasSixel()) {
+                // The backend does not have sixel support, draw this as text
+                // and bail out.
+                putCharXY(x, y, cell);
+                putCharXY(x + 1, y, ' ', cell);
+                return;
+            }
+            cursorBlinkVisible = blinkState;
         } else {
             // We don't know how to dray glyphs to this screen, draw them as
             // text and bail out.
@@ -951,47 +961,24 @@ public class TTerminalWindow extends TScrollableWindow
         }
 
         if ((textWidth != lastTextWidth) || (textHeight != lastTextHeight)) {
-            // Screen size has changed, reset all fonts.
-            setupFonts(textHeight);
+            // Screen size has changed, reset the font.
+            setupFont(textHeight);
             lastTextWidth = textWidth;
             lastTextHeight = textHeight;
         }
         assert (doubleFont != null);
 
-        BufferedImage image = null;
-
-        image = glyphCache.get(cell);
-        if (image == null) {
-            // Generate glyph and draw it to an image.
-            image = new BufferedImage(textWidth * 2, textHeight * 2,
-                BufferedImage.TYPE_INT_ARGB);
-            Graphics2D gr2 = image.createGraphics();
-            gr2.setFont(doubleFont);
-
-            // Draw the background rectangle, then the foreground character.
-            if (getScreen() instanceof ECMA48Terminal) {
-                // BUG: the background color is coming in the same as the
-                // foreground color.  For now, don't draw it.
-            } else {
-                gr2.setColor(SwingTerminal.attrToBackgroundColor(cell));
-                gr2.fillRect(0, 0, image.getWidth(), image.getHeight());
-            }
-            gr2.setColor(SwingTerminal.attrToForegroundColor(cell));
-            char [] chars = new char[1];
-            chars[0] = cell.getChar();
-            gr2.drawChars(chars, 0, 1, doubleTextAdjustX,
-                (textHeight * 2) - doubleMaxDescent + doubleTextAdjustY);
-
-            if (cell.isUnderline() && (line.getDoubleHeight() != 1)) {
-                gr2.fillRect(0, textHeight - 2, textWidth, 2);
-            }
-            gr2.dispose();
-
-            // Now save this generated image, using a new key that will not
-            // be mutated by invertCell().
-            Cell key = new Cell();
-            key.setTo(cell);
-            glyphCache.put(key, image);
+        BufferedImage image;
+        if (line.getDoubleHeight() == 1) {
+            // Double-height top half: don't draw the underline.
+            Cell newCell = new Cell();
+            newCell.setTo(cell);
+            newCell.setUnderline(false);
+            image = doubleFont.getImage(newCell, textWidth * 2, textHeight * 2,
+                cursorBlinkVisible);
+        } else {
+            image = doubleFont.getImage(cell,  textWidth * 2, textHeight * 2,
+                cursorBlinkVisible);
         }
 
         // Now that we have the double-wide glyph drawn, copy the right
@@ -1003,6 +990,11 @@ public class TTerminalWindow extends TScrollableWindow
         right.setChar(' ');
         BufferedImage leftImage = null;
         BufferedImage rightImage = null;
+        /*
+        System.err.println("image " + image + " textWidth " + textWidth +
+            " textHeight " + textHeight);
+         */
+
         switch (line.getDoubleHeight()) {
         case 1:
             // Top half double height
@@ -1030,44 +1022,41 @@ public class TTerminalWindow extends TScrollableWindow
         }
         left.setImage(leftImage);
         right.setImage(rightImage);
+        // Since we have image data, ditch the character here.  Otherwise, a
+        // drawBoxShadow() over the terminal window will show the characters
+        // which looks wrong.
+        left.setChar(' ');
+        right.setChar(' ');
         putCharXY(x, y, left);
         putCharXY(x + 1, y, right);
     }
 
     /**
-     * Set up the single and double-width fonts.
+     * Set up the double-width font.
      *
      * @param fontSize the size of font to request for the single-width font.
      * The double-width font will be 2x this value.
      */
-    private void setupFonts(final int fontSize) {
-        try {
-            ClassLoader loader = Thread.currentThread().getContextClassLoader();
-            InputStream in = loader.getResourceAsStream(SwingTerminal.FONTFILE);
-            Font terminusRoot = Font.createFont(Font.TRUETYPE_FONT, in);
-            Font terminusDouble = terminusRoot.deriveFont(Font.PLAIN,
-                fontSize * 2);
-            doubleFont = terminusDouble;
-        } catch (java.awt.FontFormatException e) {
-            new TExceptionDialog(getApplication(), e);
-            doubleFont = new Font(Font.MONOSPACED, Font.PLAIN, fontSize * 2);
-        } catch (java.io.IOException e) {
-            new TExceptionDialog(getApplication(), e);
-            doubleFont = new Font(Font.MONOSPACED, Font.PLAIN, fontSize * 2);
+    private void setupFont(final int fontSize) {
+        doubleFont = GlyphMaker.getInstance(fontSize * 2);
+
+        // Special case: the ECMA48 backend needs to have a timer to drive
+        // its blink state.
+        if (getScreen() instanceof jexer.backend.ECMA48Terminal) {
+            if (!haveTimer) {
+                // Blink every 500 millis.
+                long millis = 500;
+                getApplication().addTimer(millis, true,
+                    new TAction() {
+                        public void DO() {
+                            blinkState = !blinkState;
+                            getApplication().doRepaint();
+                        }
+                    }
+                );
+                haveTimer = true;
+            }
         }
-
-        // Get font descent.
-        BufferedImage image = new BufferedImage(fontSize * 10, fontSize * 10,
-            BufferedImage.TYPE_INT_ARGB);
-        Graphics2D gr = image.createGraphics();
-        gr.setFont(doubleFont);
-        FontMetrics fm = gr.getFontMetrics();
-        doubleMaxDescent = fm.getMaxDescent();
-
-        gr.dispose();
-
-        // (Re)create the glyph cache.
-        glyphCache = new HashMap<Cell, BufferedImage>();
     }
 
 }