Merge commit '77d3a60869e7a780c6ae069e51530e1eacece5e2'

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

diff --git a/src/jexer/backend/MultiScreen.java b/src/jexer/backend/MultiScreen.java
index 880ee1888300d12ae936ed2106c927b311cdc5a0..45741c05f15853eb336738267508cd1fd62e32ee 100644 (file)
--- a/src/jexer/backend/MultiScreen.java
+++ b/src/jexer/backend/MultiScreen.java
@@ -28,11 +28,12 @@
  */
 package jexer.backend;
 
-import java.util.LinkedList;
+import java.util.ArrayList;
 import java.util.List;
 
 import jexer.bits.Cell;
 import jexer.bits.CellAttributes;
+import jexer.bits.Clipboard;
 
 /**
  * MultiScreen mirrors its I/O to several screens.
@@ -46,7 +47,7 @@ public class MultiScreen implements Screen {
     /**
      * The list of screens to use.
      */
-    private List<Screen> screens = new LinkedList<Screen>();
+    private List<Screen> screens = new ArrayList<Screen>();
 
     // ------------------------------------------------------------------------
     // Constructors -----------------------------------------------------------
@@ -93,7 +94,10 @@ public class MultiScreen implements Screen {
      * @return drawing boundary
      */
     public int getClipRight() {
-        return screens.get(0).getClipRight();
+        if (screens.size() > 0) {
+            return screens.get(0).getClipRight();
+        }
+        return 0;
     }
 
     /**
@@ -113,7 +117,10 @@ public class MultiScreen implements Screen {
      * @return drawing boundary
      */
     public int getClipBottom() {
-        return screens.get(0).getClipBottom();
+        if (screens.size() > 0) {
+            return screens.get(0).getClipBottom();
+        }
+        return 0;
     }
 
     /**
@@ -133,7 +140,10 @@ public class MultiScreen implements Screen {
      * @return drawing boundary
      */
     public int getClipLeft() {
-        return screens.get(0).getClipLeft();
+        if (screens.size() > 0) {
+            return screens.get(0).getClipLeft();
+        }
+        return 0;
     }
 
     /**
@@ -153,7 +163,10 @@ public class MultiScreen implements Screen {
      * @return drawing boundary
      */
     public int getClipTop() {
-        return screens.get(0).getClipTop();
+        if (screens.size() > 0) {
+            return screens.get(0).getClipTop();
+        }
+        return 0;
     }
 
     /**
@@ -190,7 +203,10 @@ public class MultiScreen implements Screen {
      * @return attributes at (x, y)
      */
     public CellAttributes getAttrXY(final int x, final int y) {
-        return screens.get(0).getAttrXY(x, y);
+        if (screens.size() > 0) {
+            return screens.get(0).getAttrXY(x, y);
+        }
+        return new CellAttributes();
     }
 
     /**
@@ -201,7 +217,10 @@ public class MultiScreen implements Screen {
      * @return the character + attributes
      */
     public Cell getCharXY(final int x, final int y) {
-        return screens.get(0).getCharXY(x, y);
+        if (screens.size() > 0) {
+            return screens.get(0).getCharXY(x, y);
+        }
+        return new Cell();
     }
 
     /**
@@ -241,7 +260,7 @@ public class MultiScreen implements Screen {
      * @param ch character to draw
      * @param attr attributes to use (bold, foreColor, backColor)
      */
-    public void putAll(final char ch, final CellAttributes attr) {
+    public void putAll(final int ch, final CellAttributes attr) {
         for (Screen screen: screens) {
             screen.putAll(ch, attr);
         }
@@ -268,7 +287,7 @@ public class MultiScreen implements Screen {
      * @param ch character to draw
      * @param attr attributes to use (bold, foreColor, backColor)
      */
-    public void putCharXY(final int x, final int y, final char ch,
+    public void putCharXY(final int x, final int y, final int ch,
         final CellAttributes attr) {
 
         for (Screen screen: screens) {
@@ -283,7 +302,7 @@ public class MultiScreen implements Screen {
      * @param y row coordinate.  0 is the top-most row.
      * @param ch character to draw
      */
-    public void putCharXY(final int x, final int y, final char ch) {
+    public void putCharXY(final int x, final int y, final int ch) {
         for (Screen screen: screens) {
             screen.putCharXY(x, y, ch);
         }
@@ -329,7 +348,7 @@ public class MultiScreen implements Screen {
      * @param attr attributes to use (bold, foreColor, backColor)
      */
     public void vLineXY(final int x, final int y, final int n,
-        final char ch, final CellAttributes attr) {
+        final int ch, final CellAttributes attr) {
 
         for (Screen screen: screens) {
             screen.vLineXY(x, y, n, ch, attr);
@@ -346,7 +365,7 @@ public class MultiScreen implements Screen {
      * @param attr attributes to use (bold, foreColor, backColor)
      */
     public void hLineXY(final int x, final int y, final int n,
-        final char ch, final CellAttributes attr) {
+        final int ch, final CellAttributes attr) {
 
         for (Screen screen: screens) {
             screen.hLineXY(x, y, n, ch, attr);
@@ -410,7 +429,10 @@ public class MultiScreen implements Screen {
      */
     public int getHeight() {
         // Return the smallest height of the screens.
-        int height = screens.get(0).getHeight();
+        int height = 25;
+        if (screens.size() > 0) {
+            height = screens.get(0).getHeight();
+        }
         for (Screen screen: screens) {
             if (screen.getHeight() < height) {
                 height = screen.getHeight();
@@ -426,7 +448,10 @@ public class MultiScreen implements Screen {
      */
     public int getWidth() {
         // Return the smallest width of the screens.
-        int width = screens.get(0).getWidth();
+        int width = 80;
+        if (screens.size() > 0) {
+            width = screens.get(0).getWidth();
+        }
         for (Screen screen: screens) {
             if (screen.getWidth() < width) {
                 width = screen.getWidth();
@@ -582,7 +607,10 @@ public class MultiScreen implements Screen {
      * @return true if the cursor is visible
      */
     public boolean isCursorVisible() {
-        return screens.get(0).isCursorVisible();
+        if (screens.size() > 0) {
+            return screens.get(0).isCursorVisible();
+        }
+        return true;
     }
 
     /**
@@ -591,7 +619,10 @@ public class MultiScreen implements Screen {
      * @return the cursor x column position
      */
     public int getCursorX() {
-        return screens.get(0).getCursorX();
+        if (screens.size() > 0) {
+            return screens.get(0).getCursorX();
+        }
+        return 0;
     }
 
     /**
@@ -600,7 +631,10 @@ public class MultiScreen implements Screen {
      * @return the cursor y row position
      */
     public int getCursorY() {
-        return screens.get(0).getCursorY();
+        if (screens.size() > 0) {
+            return screens.get(0).getCursorY();
+        }
+        return 0;
     }
 
     /**
@@ -646,14 +680,7 @@ public class MultiScreen implements Screen {
     public int getTextWidth() {
         int textWidth = 16;
         for (Screen screen: screens) {
-            int newTextWidth = textWidth;
-            if (screen instanceof MultiScreen) {
-                newTextWidth = ((MultiScreen) screen).getTextWidth();
-            } else if (screen instanceof ECMA48Terminal) {
-                newTextWidth = ((ECMA48Terminal) screen).getTextWidth();
-            } else if (screen instanceof SwingTerminal) {
-                newTextWidth = ((SwingTerminal) screen).getTextWidth();
-            }
+            int newTextWidth = screen.getTextWidth();
             if (newTextWidth < textWidth) {
                 textWidth = newTextWidth;
             }
@@ -669,14 +696,7 @@ public class MultiScreen implements Screen {
     public int getTextHeight() {
         int textHeight = 20;
         for (Screen screen: screens) {
-            int newTextHeight = textHeight;
-            if (screen instanceof MultiScreen) {
-                newTextHeight = ((MultiScreen) screen).getTextHeight();
-            } else if (screen instanceof ECMA48Terminal) {
-                newTextHeight = ((ECMA48Terminal) screen).getTextHeight();
-            } else if (screen instanceof SwingTerminal) {
-                newTextHeight = ((SwingTerminal) screen).getTextHeight();
-            }
+            int newTextHeight = screen.getTextHeight();
             if (newTextHeight < textHeight) {
                 textHeight = newTextHeight;
             }
@@ -684,4 +704,70 @@ public class MultiScreen implements Screen {
         return textHeight;
     }
 
+    /**
+     * Invert the cell color at a position, including both halves of a
+     * double-width cell.
+     *
+     * @param x column position
+     * @param y row position
+     */
+    public void invertCell(final int x, final int y) {
+        for (Screen screen: screens) {
+            screen.invertCell(x, y);
+        }
+    }
+
+    /**
+     * Invert the cell color at a position.
+     *
+     * @param x column position
+     * @param y row position
+     * @param onlyThisCell if true, only invert this cell, otherwise invert
+     * both halves of a double-width cell if necessary
+     */
+    public void invertCell(final int x, final int y,
+        final boolean onlyThisCell) {
+
+        for (Screen screen: screens) {
+            screen.invertCell(x, y, onlyThisCell);
+        }
+    }
+
+    /**
+     * Set a selection area on the screen.
+     *
+     * @param x0 the starting X position of the selection
+     * @param y0 the starting Y position of the selection
+     * @param x1 the ending X position of the selection
+     * @param y1 the ending Y position of the selection
+     * @param rectangle if true, this is a rectangle select
+     */
+    public void setSelection(final int x0, final int y0,
+        final int x1, final int y1, final boolean rectangle) {
+
+        for (Screen screen: screens) {
+            screen.setSelection(x0, y0, x1, y1, rectangle);
+        }
+    }
+
+    /**
+     * Copy the screen selection area to the clipboard.
+     *
+     * @param clipboard the clipboard to use
+     * @param x0 the starting X position of the selection
+     * @param y0 the starting Y position of the selection
+     * @param x1 the ending X position of the selection
+     * @param y1 the ending Y position of the selection
+     * @param rectangle if true, this is a rectangle select
+     */
+    public void copySelection(final Clipboard clipboard,
+        final int x0, final int y0, final int x1, final int y1,
+        final boolean rectangle) {
+
+        // Only copy from the first screen.
+        if (screens.size() > 0) {
+            screens.get(0).copySelection(clipboard, x0, y0, x1, y1, rectangle);
+        }
+    }
+
 }