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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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*/
package sun.java2d.pipe;
import sun.java2d.SunGraphics2D;
/**
* This interface defines the set of calls that pipeline objects
* can use to pass on responsibility for drawing arbitrary
* parallelogram shapes.
* Six floating point numbers are provided and the parallelogram
* is defined as the quadrilateral with the following vertices:
* <pre>
* origin: (x, y)
* => (x+dx1, y+dy1)
* => (x+dx1+dx2, y+dy1+dy2)
* => (x+dx2, y+dy2)
* => origin
* </pre>
* The four u[xy][12] parameters are the unsorted extreme coordinates
* of the primitive in user space. They may have been generated by a
* line or a rectangle so they could have u[xy]2 < u[xy]1 in some cases.
* They should be sorted before calculating the bounds of the original
* primitive (such as for calculating the user space bounds for the
* Paint.createContext() method).
*/
public interface ParallelogramPipe {
public void fillParallelogram(SunGraphics2D sg,
double ux1, double uy1,
double ux2, double uy2,
double x, double y,
double dx1, double dy1,
double dx2, double dy2);
/**
* Draw a Parallelogram with the indicated line widths
* assuming a standard BasicStroke with MITER joins.
* lw1 specifies the width of the stroke along the dx1,dy1
* vector and lw2 specifies the width of the stroke along
* the dx2,dy2 vector.
* This is equivalent to outsetting the indicated
* parallelogram by lw/2 pixels, then insetting the
* same parallelogram by lw/2 pixels and filling the
* difference between the outer and inner parallelograms.
*/
public void drawParallelogram(SunGraphics2D sg,
double ux1, double uy1,
double ux2, double uy2,
double x, double y,
double dx1, double dy1,
double dx2, double dy2,
double lw1, double lw2);
}