Java Code Examples for android.graphics.Shader#getLocalMatrix()

The following examples show how to use android.graphics.Shader#getLocalMatrix() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: SVGAndroidRenderer.java From microMathematics with GNU General Public License v3.0

4 votes

@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);
   }
}

Example 2

Source File: SVGAndroidRenderer.java From starcor.xul with GNU Lesser General Public License v3.0

4 votes

@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);
   }
}

Example 3

Source File: SVGAndroidRenderer.java From XDroidAnimation with Apache License 2.0

4 votes

@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);
   }
}