#35 support emoji in tterminal

[fanfix.git] / src / jexer / backend / SwingTerminal.java

diff --git a/src/jexer/backend/SwingTerminal.java b/src/jexer/backend/SwingTerminal.java
index 4cd6d07624010ae8facb31969042f118d59ce44b..65decfa3642688047465d568dfff2a6ccd88126c 100644 (file)
--- a/src/jexer/backend/SwingTerminal.java
+++ b/src/jexer/backend/SwingTerminal.java
@@ -182,12 +182,12 @@ public class SwingTerminal extends LogicalScreen
     /**
      * Width of a character cell in pixels.
      */
-    private int textWidth = 1;
+    private int textWidth = 16;
 
     /**
      * Height of a character cell in pixels.
      */
-    private int textHeight = 1;
+    private int textHeight = 20;
 
     /**
      * Width of a character cell in pixels, as reported by font.
@@ -403,7 +403,7 @@ public class SwingTerminal extends LogicalScreen
                     SwingTerminal.this.setDimensions(sessionInfo.
                         getWindowWidth(), sessionInfo.getWindowHeight());
 
-                    SwingTerminal.this.resizeToScreen();
+                    SwingTerminal.this.resizeToScreen(true);
                     SwingTerminal.this.swing.setVisible(true);
                 }
             });
@@ -572,8 +572,8 @@ public class SwingTerminal extends LogicalScreen
             && (swing.getBufferStrategy() != null)
         ) {
             do {
-                clearPhysical();
                 do {
+                    clearPhysical();
                     drawToSwing();
                 } while (swing.getBufferStrategy().contentsRestored());
 
@@ -761,7 +761,7 @@ public class SwingTerminal extends LogicalScreen
             swing.setFont(font);
             glyphCacheBlink = new HashMap<Cell, BufferedImage>();
             glyphCache = new HashMap<Cell, BufferedImage>();
-            resizeToScreen();
+            resizeToScreen(true);
         }
     }
 
@@ -1110,13 +1110,24 @@ public class SwingTerminal extends LogicalScreen
         gotFontDimensions = true;
     }
 
+    /**
+     * Resize the physical screen to match the logical screen dimensions.
+     *
+     * @param resizeComponent if true, resize the Swing component
+     */
+    private void resizeToScreen(final boolean resizeComponent) {
+        if (resizeComponent) {
+            swing.setDimensions(textWidth * width, textHeight * height);
+        }
+        clearPhysical();
+    }
+
     /**
      * Resize the physical screen to match the logical screen dimensions.
      */
     @Override
     public void resizeToScreen() {
-        swing.setDimensions(textWidth * width, textHeight * height);
-        clearPhysical();
+        resizeToScreen(false);
     }
 
     /**
@@ -1201,8 +1212,7 @@ public class SwingTerminal extends LogicalScreen
             gr2 = (Graphics2D) gr;
         }
 
-        Cell cellColor = new Cell();
-        cellColor.setTo(cell);
+        Cell cellColor = new Cell(cell);
 
         // Check for reverse
         if (cell.isReverse()) {
@@ -1219,9 +1229,8 @@ public class SwingTerminal extends LogicalScreen
             || (cell.isBlink() && cursorBlinkVisible)
         ) {
             gr2.setColor(attrToForegroundColor(cellColor));
-            char [] chars = new char[1];
-            chars[0] = cell.getChar();
-            gr2.drawChars(chars, 0, 1, gr2x + textAdjustX,
+            char [] chars = Character.toChars(cell.getChar());
+            gr2.drawChars(chars, 0, chars.length, gr2x + textAdjustX,
                 gr2y + textHeight - maxDescent + textAdjustY);
 
             if (cell.isUnderline()) {
@@ -1234,8 +1243,7 @@ public class SwingTerminal extends LogicalScreen
 
             // We need a new key that will not be mutated by
             // invertCell().
-            Cell key = new Cell();
-            key.setTo(cell);
+            Cell key = new Cell(cell);
             if (cell.isBlink() && !cursorBlinkVisible) {
                 glyphCacheBlink.put(key, image);
             } else {
@@ -1268,18 +1276,31 @@ public class SwingTerminal extends LogicalScreen
             int xPixel = cursorX * textWidth + left;
             int yPixel = cursorY * textHeight + top;
             Cell lCell = logical[cursorX][cursorY];
+            int cursorWidth = textWidth;
+            switch (lCell.getWidth()) {
+            case SINGLE:
+                // NOP
+                break;
+            case LEFT:
+                cursorWidth *= 2;
+                break;
+            case RIGHT:
+                cursorWidth *= 2;
+                xPixel -= textWidth;
+                break;
+            }
             gr.setColor(attrToForegroundColor(lCell));
             switch (cursorStyle) {
             default:
                 // Fall through...
             case UNDERLINE:
-                gr.fillRect(xPixel, yPixel + textHeight - 2, textWidth, 2);
+                gr.fillRect(xPixel, yPixel + textHeight - 2, cursorWidth, 2);
                 break;
             case BLOCK:
-                gr.fillRect(xPixel, yPixel, textWidth, textHeight);
+                gr.fillRect(xPixel, yPixel, cursorWidth, textHeight);
                 break;
             case OUTLINE:
-                gr.drawRect(xPixel, yPixel, textWidth - 1, textHeight - 1);
+                gr.drawRect(xPixel, yPixel, cursorWidth - 1, textHeight - 1);
                 break;
             }
         }
@@ -1807,6 +1828,7 @@ public class SwingTerminal extends LogicalScreen
                 break;
             default:
                 if (!alt && ctrl && !shift) {
+                    // Control character, replace ch with 'A', 'B', etc.
                     ch = KeyEvent.getKeyText(key.getKeyCode()).charAt(0);
                 }
                 // Not a special key, put it together