/*
* Copyright (C) 2007 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;
public class LinearGradient extends Shader {
public PointF m_pts0, m_pts1;
public int[] m_colors;
public float[] m_positions;
public TileMode m_tileMode;
/** 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
*/
public LinearGradient(float x0, float y0, float x1, float y1,
int colors[], float positions[], TileMode tile) {
if (colors.length < 2) {
throw new IllegalArgumentException("needs >= 2 number of colors");
}
if (positions != null && colors.length != positions.length) {
throw new IllegalArgumentException("color and position arrays must be of equal length");
}
m_pts0 = new PointF(x0, y0);
m_pts1 = new PointF(x1, y1);
m_tileMode = tile;
m_colors = new int[colors.length];
for (int i = 0; i < colors.length; i++) {
m_colors[i] = colors[i];
}
if (positions != null) {
m_positions = new float[positions.length];
for (int i = 0; i < positions.length; i++) {
m_positions[i] = positions[i];
}
}
//native_instance = nativeCreate1(x0, y0, x1, y1, colors, positions, tile.nativeInt);
}
/** 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 color0 The color at the start of the gradient line.
@param color1 The color at the end of the gradient line.
@param tile The Shader tiling mode
*/
public LinearGradient(float x0, float y0, float x1, float y1,
int color0, int color1, TileMode tile) {
m_pts0 = new PointF(x0, y0);
m_pts1 = new PointF(x1, y1);
m_tileMode = tile;
m_colors = new int[2];
m_colors[0] = color0; m_colors[1] = color1;
//native_instance = nativeCreate2(x0, y0, x1, y1, color0, color1, tile.nativeInt);
}
}