From 03a7b530fc05426f4b9537784b6dab5e45a337f6 Mon Sep 17 00:00:00 2001
From: Paul Gardiner <paulg.artifex@glidos.net>
Date: Wed, 6 Mar 2013 11:10:29 +0000
Subject: Add another input mode for drawing ink annotations

---
 .../src/com/artifex/mupdfdemo/MuPDFActivity.java   | 12 ++++----
 .../src/com/artifex/mupdfdemo/MuPDFReaderView.java | 32 ++++++++++++++++------
 2 files changed, 30 insertions(+), 14 deletions(-)

(limited to 'android')

diff --git a/android/src/com/artifex/mupdfdemo/MuPDFActivity.java b/android/src/com/artifex/mupdfdemo/MuPDFActivity.java
index be8dca89..41a71405 100644
--- a/android/src/com/artifex/mupdfdemo/MuPDFActivity.java
+++ b/android/src/com/artifex/mupdfdemo/MuPDFActivity.java
@@ -471,7 +471,7 @@ public class MuPDFActivity extends Activity
 		// Activate the select button
 		mSelectButton.setOnClickListener(new View.OnClickListener() {
 			public void onClick(View v) {
-				mDocView.setSelectionMode(true);
+				mDocView.setMode(MuPDFReaderView.Mode.Selecting);
 				mTopBarMode = TopBarMode.Text;
 				mTopBarSwitcher.setDisplayedChild(mTopBarMode.ordinal());
 			}
@@ -482,7 +482,7 @@ public class MuPDFActivity extends Activity
 				MuPDFView pageView = (MuPDFView) mDocView.getDisplayedView();
 				if (pageView != null)
 					pageView.deselectText();
-				mDocView.setSelectionMode(false);
+				mDocView.setMode(MuPDFReaderView.Mode.Viewing);
 				mTopBarMode = TopBarMode.Main;
 				mTopBarSwitcher.setDisplayedChild(mTopBarMode.ordinal());
 			}
@@ -495,7 +495,7 @@ public class MuPDFActivity extends Activity
 				boolean copied = false;
 				if (pageView != null)
 					copied = pageView.copySelection();
-				mDocView.setSelectionMode(false);
+				mDocView.setMode(MuPDFReaderView.Mode.Viewing);
 				mTopBarMode = TopBarMode.Main;
 				mTopBarSwitcher.setDisplayedChild(mTopBarMode.ordinal());
 				mInfoView.setText(copied?"Copied to clipboard":"No text selected");
@@ -536,7 +536,7 @@ public class MuPDFActivity extends Activity
 				MuPDFView pageView = (MuPDFView) mDocView.getDisplayedView();
 				if (pageView != null)
 					pageView.markupSelection(Annotation.Type.HIGHLIGHT);
-				mDocView.setSelectionMode(false);
+				mDocView.setMode(MuPDFReaderView.Mode.Viewing);
 				mTopBarMode = TopBarMode.Main;
 				mTopBarSwitcher.setDisplayedChild(mTopBarMode.ordinal());
 			}
@@ -547,7 +547,7 @@ public class MuPDFActivity extends Activity
 				MuPDFView pageView = (MuPDFView) mDocView.getDisplayedView();
 				if (pageView != null)
 					pageView.markupSelection(Annotation.Type.UNDERLINE);
-				mDocView.setSelectionMode(false);
+				mDocView.setMode(MuPDFReaderView.Mode.Viewing);
 				mTopBarMode = TopBarMode.Main;
 				mTopBarSwitcher.setDisplayedChild(mTopBarMode.ordinal());
 			}
@@ -558,7 +558,7 @@ public class MuPDFActivity extends Activity
 				MuPDFView pageView = (MuPDFView) mDocView.getDisplayedView();
 				if (pageView != null)
 					pageView.markupSelection(Annotation.Type.STRIKEOUT);
-				mDocView.setSelectionMode(false);
+				mDocView.setMode(MuPDFReaderView.Mode.Viewing);
 				mTopBarMode = TopBarMode.Main;
 				mTopBarSwitcher.setDisplayedChild(mTopBarMode.ordinal());
 			}
diff --git a/android/src/com/artifex/mupdfdemo/MuPDFReaderView.java b/android/src/com/artifex/mupdfdemo/MuPDFReaderView.java
index 13575dc7..6ddb69da 100644
--- a/android/src/com/artifex/mupdfdemo/MuPDFReaderView.java
+++ b/android/src/com/artifex/mupdfdemo/MuPDFReaderView.java
@@ -10,9 +10,10 @@ import android.view.ScaleGestureDetector;
 import android.view.View;
 
 public class MuPDFReaderView extends ReaderView {
+	enum Mode {Viewing, Selecting, Drawing}
 	private final Context mContext;
 	private boolean mLinksEnabled = false;
-	private boolean mSelecting = false;
+	private Mode mMode = Mode.Viewing;
 	private boolean tapDisabled = false;
 	private int tapPageMargin;
 
@@ -25,8 +26,8 @@ public class MuPDFReaderView extends ReaderView {
 		resetupChildren();
 	}
 
-	public void setSelectionMode(boolean b) {
-		mSelecting = b;
+	public void setMode(Mode m) {
+		mMode = m;
 	}
 
 	public MuPDFReaderView(Activity act) {
@@ -51,7 +52,7 @@ public class MuPDFReaderView extends ReaderView {
 	public boolean onSingleTapUp(MotionEvent e) {
 		LinkInfo link = null;
 
-		if (!mSelecting && !tapDisabled) {
+		if (mMode == Mode.Viewing && !tapDisabled) {
 			MuPDFView pageView = (MuPDFView) getDisplayedView();
 			Hit item = pageView.passClickEvent(e.getX(), e.getY());
 			onHit(item);
@@ -93,28 +94,43 @@ public class MuPDFReaderView extends ReaderView {
 		return super.onSingleTapUp(e);
 	}
 
+	@Override
+	public void onShowPress(MotionEvent e) {
+		switch (mMode) {
+		case Drawing:
+			break;
+		}
+	}
+
 	public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,
 			float distanceY) {
-		if (!mSelecting) {
+		switch (mMode) {
+		case Viewing:
 			if (!tapDisabled)
 				onDocMotion();
 
 			return super.onScroll(e1, e2, distanceX, distanceY);
-		} else {
+		case Selecting:
 			MuPDFView pageView = (MuPDFView)getDisplayedView();
 			if (pageView != null)
 				pageView.selectText(e1.getX(), e1.getY(), e2.getX(), e2.getY());
 			return true;
+		case Drawing:
+			return true;
+		default:
+			return true;
 		}
 	}
 
 	@Override
 	public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
 			float velocityY) {
-		if (!mSelecting)
+		switch (mMode) {
+		case Viewing:
 			return super.onFling(e1, e2, velocityX, velocityY);
-		else
+		default:
 			return true;
+		}
 	}
 
 	public boolean onScaleBegin(ScaleGestureDetector d) {
-- 
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