本文整理汇总了Java中android.graphics.Shader.getLocalMatrix方法的典型用法代码示例。如果您正苦于以下问题：Java Shader.getLocalMatrix方法的具体用法？Java Shader.getLocalMatrix怎么用？Java Shader.getLocalMatrix使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类android.graphics.Shader的用法示例。
在下文中一共展示了Shader.getLocalMatrix方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: doStroke
import android.graphics.Shader; //导入方法依赖的package包/类
@SuppressWarnings("deprecation")
private void doStroke(Path path) {
// TODO handle degenerate subpaths properly
if (state.style.vectorEffect == VectorEffect.NonScalingStroke) {
// For non-scaling-stroke, the stroke width is not transformed along
// with the path.
// It will be rendered at the same width no matter how the document
// contents are transformed.
// First step: get the current canvas matrix
Matrix currentMatrix = canvas.getMatrix();
// Transform the path using this transform
Path transformedPath = new Path();
path.transform(currentMatrix, transformedPath);
// Reset the current canvas transform completely
canvas.setMatrix(new Matrix());
// If there is a shader (such as a gradient), we need to update its
// transform also
Shader shader = state.strokePaint.getShader();
Matrix currentShaderMatrix = new Matrix();
if (shader != null) {
shader.getLocalMatrix(currentShaderMatrix);
Matrix newShaderMatrix = new Matrix(currentShaderMatrix);
newShaderMatrix.postConcat(currentMatrix);
shader.setLocalMatrix(newShaderMatrix);
}
// Render the transformed path. The stroke width used will be in
// unscaled device units.
canvas.drawPath(transformedPath, state.strokePaint);
// Return the current canvas transform to what it was before all
// this happened
canvas.setMatrix(currentMatrix);
// And reset the shader matrix also
if (shader != null)
shader.setLocalMatrix(currentShaderMatrix);
} else {
canvas.drawPath(path, state.strokePaint);
}
}