Update Android port

* doc/emacs/android.texi (Android Fonts): Document that TTC
format fonts are now supported.
* doc/emacs/emacs.texi (Top): Fix menus.
* doc/lispref/commands.texi (Touchscreen Events)
(Key Sequence Input): Document changes to touchscreen events.
* etc/DEBUG: Describe how to debug 64 bit binaries on Android.

* java/org/gnu/emacs/EmacsCopyArea.java (perform): Explicitly
recycle copy bitmap.
* java/org/gnu/emacs/EmacsDialog.java (EmacsDialog): New class.
* java/org/gnu/emacs/EmacsDrawRectangle.java (perform): Use 5
point PolyLine like X, because Android behaves like Postscript
on some devices and X elsewhere.
* java/org/gnu/emacs/EmacsFillRectangle.java (perform):
Explicitly recycle copy bitmap.
* java/org/gnu/emacs/EmacsPixmap.java (destroyHandle):
Explicitly recycle bitmap and GC if it is big.
* java/org/gnu/emacs/EmacsView.java (EmacsView): Make
`bitmapDirty' a boolean.
(handleDirtyBitmap): Reimplement in terms of that boolean.
Explicitly recycle old bitmap and GC.
(onLayout): Fix lock up.
(onDetachedFromWindow): Recycle bitmap and GC.

* java/org/gnu/emacs/EmacsWindow.java (requestViewLayout):
Update call to explicitlyDirtyBitmap.

* src/android.c (android_run_select_thread, android_select):
Really fix android_select.
(android_build_jstring): New function.
* src/android.h: Update prototypes.
* src/androidmenu.c (android_process_events_for_menu): Totally
unblock input before process_pending_signals.
(android_menu_show): Remove redundant unblock_input and
debugging code.
(struct android_emacs_dialog, android_init_emacs_dialog)
(android_dialog_show, android_popup_dialog, init_androidmenu):
Implement popup dialogs on Android.

* src/androidterm.c (android_update_tools)
(handle_one_android_event, android_frame_up_to_date): Allow
tapping tool bar items.
(android_create_terminal): Add dialog hook.
(android_wait_for_event): Adjust call to android_select.
* src/androidterm.h (struct android_touch_point): New field
`tool_bar_p'.
* src/keyboard.c (read_key_sequence, head_table)
(syms_of_keyboard): Prefix touchscreen events with posn.
* src/keyboard.h (EVENT_HEAD): Handle touchscreen events.
* src/process.c (wait_reading_process_output): Adjust call to
android_select.
* src/sfnt.c (sfnt_read_table_directory): If the first long
turns out to be ttcf, return -1.
(sfnt_read_ttc_header): New function.
(main): Test TTC support.

* src/sfnt.h (struct sfnt_ttc_header): New structure.
(enum sfnt_ttc_tag): New enum.

* src/sfntfont-android.c (struct
sfntfont_android_scanline_buffer): New structure.
(GET_SCANLINE_BUFFER): New macro.  Try to avoid so much malloc
upon accessing the scanline buffer.
(sfntfont_android_put_glyphs): Do not use SAFE_ALLOCA to
allocate the scaline buffer.
(Fandroid_enumerate_fonts): Enumerate ttc fonts too.

* src/sfntfont.c (struct sfnt_font_desc): New field `offset'.
(sfnt_enum_font_1): Split out enumeration code from
sfnt_enum_font.
(sfnt_enum_font): Read TTC tables and enumerate each font
therein.
(sfntfont_open): Seek to the offset specified.

* xcompile/Makefile.in (maintainer-clean): Fix depends here.

java/org/gnu/emacs/EmacsDrawRectangle.java

@@ -36,10 +36,10 @@ public class EmacsDrawRectangle
     Paint maskPaint, paint;
     Canvas maskCanvas;
     Bitmap maskBitmap;
-    Rect rect;
     Rect maskRect, dstRect;
     Canvas canvas;
     Bitmap clipBitmap;
+    Rect clipRect;
 
     /* TODO implement stippling.  */
     if (gc.fill_style == EmacsGC.GC_FILL_OPAQUE_STIPPLED)
@@ -58,13 +58,29 @@ public class EmacsDrawRectangle
 	  canvas.clipRect (gc.real_clip_rects[i]);
       }
 
-    paint = gc.gcPaint;
-    rect = new Rect (x, y, x + width, y + height);
+    /* Clip to the clipRect because some versions of Android draw an
+       overly wide line.  */
+    clipRect = new Rect (x, y, x + width + 1,
+			 y + height + 1);
+    canvas.clipRect (clipRect);
 
-    paint.setStyle (Paint.Style.STROKE);
+    paint = gc.gcPaint;
 
     if (gc.clip_mask == null)
-      canvas.drawRect (rect, paint);
+      {
+	/* canvas.drawRect just doesn't work on Android, producing
+	   different results on various devices.  Do a 5 point
+	   PolyLine instead.  */
+	canvas.drawLine ((float) x, (float) y, (float) x + width,
+			 (float) y, paint);
+	canvas.drawLine ((float) x + width, (float) y,
+			 (float) x + width, (float) y + height,
+			 paint);
+	canvas.drawLine ((float) x + width, (float) y + height,
+			 (float) x, (float) y + height, paint);
+	canvas.drawLine ((float) x, (float) y + height,
+			 (float) x, (float) y, paint);
+      }
     else
       {
 	/* Drawing with a clip mask involves calculating the
@@ -116,10 +132,12 @@ public class EmacsDrawRectangle
 	/* Finally, draw the mask bitmap to the destination.  */
 	paint.setXfermode (null);
 	canvas.drawBitmap (maskBitmap, null, maskRect, paint);
+
+	/* Recycle this unused bitmap.  */
+	maskBitmap.recycle ();
       }
 
     canvas.restore ();
-    drawable.damageRect (new Rect (x, y, x + width + 1,
-				   y + height + 1));
+    drawable.damageRect (clipRect);
   }
 }