Adding print preview.

This change adds the pring preview part of the new print UX. The
UI has two parts, the top section is the print options and the
bottom section print preview with a list of pages. The user can
interact only with one of them. When print options are expanded
they cover the preview content and a scrim is laid out on top of
the preview. Tapping the scrim collapses the print options. When
the user types in page ranges and closes the options to look at
the preview, the latter is updated to show only these pages. In
the list of pages the user can further prune pages by deselecting
them.

Change-Id: I0b23d2c598afe2a34400ccfa43e4e935af83c72f

1 files changed, 18 insertions, 16 deletions

diff --git a/core/java/android/print/PrintAttributes.java b/core/java/android/print/PrintAttributes.java
index 2810d55..30f0c6a 100644
--- a/core/java/android/print/PrintAttributes.java
+++ b/core/java/android/print/PrintAttributes.java
@@ -105,6 +105,13 @@ public final class PrintAttributes implements Parcelable {
     /**
      * Gets the minimal margins. If the content does not fit
      * these margins it will be clipped.
+     * <p>
+     * <strong>These margins are physically imposed by the printer and they
+     * are <em>not</em> rotated, i.e. they are the same for both portrait and
+     * landscape. For example, a printer may not be able to print in a stripe
+     * on both left and right sides of the page.
+     * </strong>
+     * </p>
      *
      * @return The margins or <code>null</code> if not set.
      */
@@ -115,6 +122,13 @@ public final class PrintAttributes implements Parcelable {
     /**
      * Sets the minimal margins. If the content does not fit
      * these margins it will be clipped.
+     * <p>
+     * <strong>These margins are physically imposed by the printer and they
+     * are <em>not</em> rotated, i.e. they are the same for both portrait and
+     * landscape. For example, a printer may not be able to print in a stripe
+     * on both left and right sides of the page.
+     * </strong>
+     * </p>
      *
      * @param The margins.
      *
@@ -193,14 +207,8 @@ public final class PrintAttributes implements Parcelable {
                 oldResolution.getHorizontalDpi());
         attributes.setResolution(newResolution);
 
-        // Rotate the physical margins.
-        Margins oldMinMargins = getMinMargins();
-        Margins newMinMargins = new Margins(
-                oldMinMargins.getBottomMils(),
-                oldMinMargins.getLeftMils(),
-                oldMinMargins.getTopMils(),
-                oldMinMargins.getRightMils());
-        attributes.setMinMargins(newMinMargins);
+        // Do not rotate the physical margins.
+        attributes.setMinMargins(getMinMargins());
 
         attributes.setColorMode(getColorMode());
 
@@ -236,14 +244,8 @@ public final class PrintAttributes implements Parcelable {
                 oldResolution.getHorizontalDpi());
         attributes.setResolution(newResolution);
 
-        // Rotate the physical margins.
-        Margins oldMinMargins = getMinMargins();
-        Margins newMargins = new Margins(
-                oldMinMargins.getTopMils(),
-                oldMinMargins.getRightMils(),
-                oldMinMargins.getBottomMils(),
-                oldMinMargins.getLeftMils());
-        attributes.setMinMargins(newMargins);
+        // Do not rotate the physical margins.
+        attributes.setMinMargins(getMinMargins());
 
         attributes.setColorMode(getColorMode());