Revert "Move frameworks/base/tools/ to frameworks/tools/"

This reverts commit 9f6a119c8aa276432ece4fe2118bd8a3c9b1067e.

1 files changed, 240 insertions, 0 deletions

diff --git a/tools/layoutlib/bridge/src/android/graphics/LinearGradient_Delegate.java b/tools/layoutlib/bridge/src/android/graphics/LinearGradient_Delegate.java
new file mode 100644
index 0000000..f117fca
--- /dev/null
+++ b/tools/layoutlib/bridge/src/android/graphics/LinearGradient_Delegate.java
@@ -0,0 +1,240 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.graphics;
+
+import com.android.ide.common.rendering.api.LayoutLog;
+import com.android.layoutlib.bridge.Bridge;
+import com.android.layoutlib.bridge.impl.DelegateManager;
+import com.android.tools.layoutlib.annotations.LayoutlibDelegate;
+
+import android.graphics.Shader.TileMode;
+
+/**
+ * Delegate implementing the native methods of android.graphics.LinearGradient
+ *
+ * Through the layoutlib_create tool, the original native methods of LinearGradient have been
+ * replaced by calls to methods of the same name in this delegate class.
+ *
+ * This class behaves like the original native implementation, but in Java, keeping previously
+ * native data into its own objects and mapping them to int that are sent back and forth between
+ * it and the original LinearGradient class.
+ *
+ * Because this extends {@link Shader_Delegate}, there's no need to use a {@link DelegateManager},
+ * as all the Shader classes will be added to the manager owned by {@link Shader_Delegate}.
+ *
+ * @see Shader_Delegate
+ *
+ */
+public final class LinearGradient_Delegate extends Gradient_Delegate {
+
+    // ---- delegate data ----
+    private java.awt.Paint mJavaPaint;
+
+    // ---- Public Helper methods ----
+
+    @Override
+    public java.awt.Paint getJavaPaint() {
+        return mJavaPaint;
+    }
+
+    // ---- native methods ----
+
+    @LayoutlibDelegate
+    /*package*/ static int nativeCreate1(LinearGradient thisGradient,
+            float x0, float y0, float x1, float y1,
+            int colors[], float positions[], int tileMode) {
+        LinearGradient_Delegate newDelegate = new LinearGradient_Delegate(x0, y0, x1, y1,
+                colors, positions, Shader_Delegate.getTileMode(tileMode));
+        return sManager.addNewDelegate(newDelegate);
+    }
+
+    @LayoutlibDelegate
+    /*package*/ static int nativeCreate2(LinearGradient thisGradient,
+            float x0, float y0, float x1, float y1,
+            int color0, int color1, int tileMode) {
+        return nativeCreate1(thisGradient,
+                x0, y0, x1, y1, new int[] { color0, color1}, null /*positions*/,
+                tileMode);
+    }
+
+    @LayoutlibDelegate
+    /*package*/ static int nativePostCreate1(LinearGradient thisGradient,
+            int native_shader, float x0, float y0, float x1, float y1,
+            int colors[], float positions[], int tileMode) {
+        // nothing to be done here.
+        return 0;
+    }
+
+    @LayoutlibDelegate
+    /*package*/ static int nativePostCreate2(LinearGradient thisGradient,
+            int native_shader, float x0, float y0, float x1, float y1,
+            int color0, int color1, int tileMode) {
+        // nothing to be done here.
+        return 0;
+    }
+
+    // ---- Private delegate/helper methods ----
+
+    /**
+     * Create a shader that draws a linear gradient along a line.
+     *
+     * @param x0 The x-coordinate for the start of the gradient line
+     * @param y0 The y-coordinate for the start of the gradient line
+     * @param x1 The x-coordinate for the end of the gradient line
+     * @param y1 The y-coordinate for the end of the gradient line
+     * @param colors The colors to be distributed along the gradient line
+     * @param positions May be null. The relative positions [0..1] of each
+     *            corresponding color in the colors array. If this is null, the
+     *            the colors are distributed evenly along the gradient line.
+     * @param tile The Shader tiling mode
+     */
+    private LinearGradient_Delegate(float x0, float y0, float x1, float y1,
+            int colors[], float positions[], TileMode tile) {
+        super(colors, positions);
+        mJavaPaint = new LinearGradientPaint(x0, y0, x1, y1, mColors, mPositions, tile);
+    }
+
+    // ---- Custom Java Paint ----
+    /**
+     * Linear Gradient (Java) Paint able to handle more than 2 points, as
+     * {@link java.awt.GradientPaint} only supports 2 points and does not support Android's tile
+     * modes.
+     */
+    private class LinearGradientPaint extends GradientPaint {
+
+        private final float mX0;
+        private final float mY0;
+        private final float mDx;
+        private final float mDy;
+        private final float mDSize2;
+
+        public LinearGradientPaint(float x0, float y0, float x1, float y1, int colors[],
+                float positions[], TileMode tile) {
+            super(colors, positions, tile);
+            mX0 = x0;
+            mY0 = y0;
+            mDx = x1 - x0;
+            mDy = y1 - y0;
+            mDSize2 = mDx * mDx + mDy * mDy;
+        }
+
+        @Override
+        public java.awt.PaintContext createContext(
+                java.awt.image.ColorModel      colorModel,
+                java.awt.Rectangle             deviceBounds,
+                java.awt.geom.Rectangle2D      userBounds,
+                java.awt.geom.AffineTransform  xform,
+                java.awt.RenderingHints        hints) {
+            precomputeGradientColors();
+
+            java.awt.geom.AffineTransform canvasMatrix;
+            try {
+                canvasMatrix = xform.createInverse();
+            } catch (java.awt.geom.NoninvertibleTransformException e) {
+                Bridge.getLog().fidelityWarning(LayoutLog.TAG_MATRIX_INVERSE,
+                        "Unable to inverse matrix in LinearGradient", e, null /*data*/);
+                canvasMatrix = new java.awt.geom.AffineTransform();
+            }
+
+            java.awt.geom.AffineTransform localMatrix = getLocalMatrix();
+            try {
+                localMatrix = localMatrix.createInverse();
+            } catch (java.awt.geom.NoninvertibleTransformException e) {
+                Bridge.getLog().fidelityWarning(LayoutLog.TAG_MATRIX_INVERSE,
+                        "Unable to inverse matrix in LinearGradient", e, null /*data*/);
+                localMatrix = new java.awt.geom.AffineTransform();
+            }
+
+            return new LinearGradientPaintContext(canvasMatrix, localMatrix, colorModel);
+        }
+
+        private class LinearGradientPaintContext implements java.awt.PaintContext {
+
+            private final java.awt.geom.AffineTransform mCanvasMatrix;
+            private final java.awt.geom.AffineTransform mLocalMatrix;
+            private final java.awt.image.ColorModel mColorModel;
+
+            private LinearGradientPaintContext(
+                    java.awt.geom.AffineTransform canvasMatrix,
+                    java.awt.geom.AffineTransform localMatrix,
+                    java.awt.image.ColorModel colorModel) {
+                mCanvasMatrix = canvasMatrix;
+                mLocalMatrix = localMatrix;
+                mColorModel = colorModel;
+            }
+
+            @Override
+            public void dispose() {
+            }
+
+            @Override
+            public java.awt.image.ColorModel getColorModel() {
+                return mColorModel;
+            }
+
+            @Override
+            public java.awt.image.Raster getRaster(int x, int y, int w, int h) {
+                java.awt.image.BufferedImage image = new java.awt.image.BufferedImage(w, h,
+                        java.awt.image.BufferedImage.TYPE_INT_ARGB);
+
+                int[] data = new int[w*h];
+
+                int index = 0;
+                float[] pt1 = new float[2];
+                float[] pt2 = new float[2];
+                for (int iy = 0 ; iy < h ; iy++) {
+                    for (int ix = 0 ; ix < w ; ix++) {
+                        // handle the canvas transform
+                        pt1[0] = x + ix;
+                        pt1[1] = y + iy;
+                        mCanvasMatrix.transform(pt1, 0, pt2, 0, 1);
+
+                        // handle the local matrix.
+                        pt1[0] = pt2[0];
+                        pt1[1] = pt2[1];
+                        mLocalMatrix.transform(pt1, 0, pt2, 0, 1);
+
+                        data[index++] = getColor(pt2[0], pt2[1]);
+                    }
+                }
+
+                image.setRGB(0 /*startX*/, 0 /*startY*/, w, h, data, 0 /*offset*/, w /*scansize*/);
+
+                return image.getRaster();
+            }
+        }
+
+        /**
+         * Returns a color for an arbitrary point.
+         */
+        private int getColor(float x, float y) {
+            float pos;
+            if (mDx == 0) {
+                pos = (y - mY0) / mDy;
+            } else if (mDy == 0) {
+                pos = (x - mX0) / mDx;
+            } else {
+                // find the x position on the gradient vector.
+                float _x = (mDx*mDy*(y-mY0) + mDy*mDy*mX0 + mDx*mDx*x) / mDSize2;
+                // from it get the position relative to the vector
+                pos = (_x - mX0) / mDx;
+            }
+
+            return getGradientColor(pos);
+        }
+    }
+}