Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 146 insertions, 0 deletions

diff --git a/android/source/src/java/org/libreoffice/canvas/GraphicSelectionHandle.java b/android/source/src/java/org/libreoffice/canvas/GraphicSelectionHandle.java
new file mode 100644
index 000000000..68b445af6
--- /dev/null
+++ b/android/source/src/java/org/libreoffice/canvas/GraphicSelectionHandle.java
@@ -0,0 +1,146 @@
+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+package org.libreoffice.canvas;
+
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.Paint;
+import android.graphics.PointF;
+import android.graphics.RectF;
+
+/**
+ * This class is responsible to draw the selection handles, track the handle
+ * position and perform a hit test to determine if the selection handle was
+ * touched.
+ */
+public class GraphicSelectionHandle extends CommonCanvasElement {
+    /**
+     * The factor used to inflate the hit area.
+     */
+    private final float HIT_AREA_INFLATE_FACTOR = 1.75f;
+
+    private final HandlePosition mHandlePosition;
+    public PointF mPosition = new PointF();
+    private float mRadius = 20.0f;
+    private Paint mStrokePaint = new Paint();
+    private Paint mFillPaint = new Paint();
+    private Paint mSelectedFillPaint = new Paint();
+    private RectF mHitRect = new RectF();
+    private boolean mSelected = false;
+
+    /**
+     * Construct the handle - set the handle position on the selection.
+     * @param position - the handle position on the selection
+     */
+    public GraphicSelectionHandle(HandlePosition position) {
+        mHandlePosition = position;
+
+        mStrokePaint.setStyle(Paint.Style.STROKE);
+        mStrokePaint.setColor(Color.GRAY);
+        mStrokePaint.setStrokeWidth(3);
+        mStrokePaint.setAntiAlias(true);
+
+        mFillPaint.setStyle(Paint.Style.FILL);
+        mFillPaint.setColor(Color.WHITE);
+        mFillPaint.setAlpha(200);
+        mFillPaint.setAntiAlias(true);
+
+        mSelectedFillPaint.setStyle(Paint.Style.FILL);
+        mSelectedFillPaint.setColor(Color.GRAY);
+        mSelectedFillPaint.setAlpha(200);
+        mSelectedFillPaint.setAntiAlias(true);
+    }
+
+    /**
+     * The position of the handle.
+     * @return
+     */
+    public HandlePosition getHandlePosition() {
+        return mHandlePosition;
+    }
+
+    /**
+     * Draws the handle to the canvas.
+     *
+     * @see org.libreoffice.canvas.CanvasElement#draw(android.graphics.Canvas)
+     */
+    @Override
+    public void onDraw(Canvas canvas) {
+        if (mSelected) {
+            drawFilledCircle(canvas, mPosition.x, mPosition.y, mRadius, mStrokePaint, mSelectedFillPaint);
+        } else {
+            drawFilledCircle(canvas, mPosition.x, mPosition.y, mRadius, mStrokePaint, mFillPaint);
+        }
+    }
+
+    /**
+     * Draw a filled and stroked circle to the canvas.
+     */
+    private void drawFilledCircle(Canvas canvas, float x, float y, float radius, Paint strokePaint, Paint fillPaint) {
+        canvas.drawCircle(x, y, radius, fillPaint);
+        canvas.drawCircle(x, y, radius, strokePaint);
+    }
+
+    /**
+     * Viewport has changed, reposition the handle to the input coordinates.
+     */
+    public void reposition(float x, float y) {
+        mPosition.x = x;
+        mPosition.y = y;
+
+        // inflate the radius by HIT_AREA_INFLATE_FACTOR
+        float inflatedRadius = mRadius * HIT_AREA_INFLATE_FACTOR;
+
+        // reposition the hit area rectangle
+        mHitRect.left = mPosition.x - inflatedRadius;
+        mHitRect.right = mPosition.x + inflatedRadius;
+        mHitRect.top = mPosition.y - inflatedRadius;
+        mHitRect.bottom = mPosition.y + inflatedRadius;
+    }
+
+    /**
+     * Hit test for the handle.
+     * @see org.libreoffice.canvas.CanvasElement#draw(android.graphics.Canvas)
+     */
+    @Override
+    public boolean onHitTest(float x, float y) {
+        return mHitRect.contains(x, y);
+    }
+
+    /**
+     * Mark the handle as selected.
+     */
+    public void select() {
+        mSelected = true;
+    }
+
+    /**
+     * Reset the selection for the handle.
+     */
+    public void reset() {
+        mSelected = false;
+    }
+
+    /**
+     * All possible handle positions. The selection rectangle has 8 possible
+     * handles.
+     */
+    public enum HandlePosition {
+        TOP_LEFT,
+        TOP,
+        TOP_RIGHT,
+        RIGHT,
+        BOTTOM_RIGHT,
+        BOTTOM,
+        BOTTOM_LEFT,
+        LEFT
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
\ No newline at end of file