processing/core/src/processing/javafx/PGraphicsFX2D.java at master · processing/processing · GitHub

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/* -*- mode: java; c-basic-offset: 2; indent-tabs-mode: nil -*- */

Part of the Processing project - http://processing.org

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Lesser General Public

License as published by the Free Software Foundation, version 2.1.

This library 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

Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General

Public License along with this library; if not, write to the

Free Software Foundation, Inc., 59 Temple Place, Suite 330,

Boston, MA 02111-1307 USA

package processing.javafx;

import com.sun.javafx.geom.Path2D;

import com.sun.javafx.geom.PathIterator;

import com.sun.javafx.geom.Shape;

import java.nio.IntBuffer;

import java.util.HashMap;

import java.util.HashSet;

import java.util.LinkedHashMap;

import java.util.Map;

import javafx.scene.SnapshotParameters;

import javafx.scene.canvas.GraphicsContext;

import javafx.scene.effect.BlendMode;

import javafx.scene.image.PixelFormat;

import javafx.scene.image.PixelReader;

import javafx.scene.image.PixelWriter;

import javafx.scene.image.WritableImage;

import javafx.scene.image.WritablePixelFormat;

import javafx.scene.paint.Color;

import javafx.scene.shape.ArcType;

import javafx.scene.shape.StrokeLineCap;

import javafx.scene.shape.StrokeLineJoin;

import javafx.scene.text.Font;

import javafx.scene.text.Text;

import javafx.scene.transform.Affine;

import javafx.scene.transform.Transform;

import processing.core.*;

public class PGraphicsFX2D extends PGraphics {

GraphicsContext context;

static final WritablePixelFormat<IntBuffer> argbFormat =

PixelFormat.getIntArgbInstance();

WritableImage snapshotImage;

Path2D workPath = new Path2D();

Path2D auxPath = new Path2D();

boolean openContour;

boolean adjustedForThinLines;

/// break the shape at the next vertex (next vertex() call is a moveto())

boolean breakShape;

private float[] pathCoordsBuffer = new float[6];

/// coordinates for internal curve calculation

float[] curveCoordX;

float[] curveCoordY;

float[] curveDrawX;

float[] curveDrawY;

int transformCount;

Affine[] transformStack = new Affine[MATRIX_STACK_DEPTH];

// Line2D.Float line = new Line2D.Float();

// Ellipse2D.Float ellipse = new Ellipse2D.Float();

// Rectangle2D.Float rect = new Rectangle2D.Float();

// Arc2D.Float arc = new Arc2D.Float();

// protected Color tintColorObject;

// protected Color fillColorObject;

// public boolean fillGradient;

// public Paint fillGradientObject;

// protected Color strokeColorObject;

// public boolean strokeGradient;

// public Paint strokeGradientObject;

//////////////////////////////////////////////////////////////

// INTERNAL

public PGraphicsFX2D() { }

//public void setParent(PApplet parent)

//public void setPrimary(boolean primary)

//public void setPath(String path)

//public void setSize(int width, int height)

//public void dispose()

@Override

public PSurface createSurface() {

return surface = new PSurfaceFX(this);

}

/** Returns the javafx.scene.canvas.GraphicsContext used by this renderer. */

@Override

public Object getNative() {

return context;

}

//////////////////////////////////////////////////////////////

// FRAME

// @Override

// public boolean canDraw() {

// return true;

// }

@Override

public void beginDraw() {

checkSettings();

resetMatrix(); // reset model matrix

vertexCount = 0;

}

@Override

public void endDraw() {

flush();

if (!primaryGraphics) {

// TODO this is probably overkill for most tasks...

loadPixels();

}

//////////////////////////////////////////////////////////////

// SETTINGS

//protected void checkSettings()

//protected void defaultSettings()

//protected void reapplySettings()

//////////////////////////////////////////////////////////////

// HINT

//public void hint(int which)

//////////////////////////////////////////////////////////////

// SHAPE CREATION

//protected PShape createShapeFamily(int type)

//protected PShape createShapePrimitive(int kind, float... p)

//////////////////////////////////////////////////////////////

// SHAPE

@Override

public void beginShape(int kind) {

shape = kind;

vertexCount = 0;

curveVertexCount = 0;

workPath.reset();

auxPath.reset();

flushPixels();

if (drawingThinLines()) {

adjustedForThinLines = true;

translate(0.5f, 0.5f);

}

//public boolean edge(boolean e)

//public void normal(float nx, float ny, float nz) {

//public void textureMode(int mode)

@Override

public void texture(PImage image) {

showMethodWarning("texture");

}

@Override

public void vertex(float x, float y) {

if (vertexCount == vertices.length) {

float[][] temp = new float[vertexCount<<1][VERTEX_FIELD_COUNT];

System.arraycopy(vertices, 0, temp, 0, vertexCount);

vertices = temp;

//message(CHATTER, "allocating more vertices " + vertices.length);

}

// not everyone needs this, but just easier to store rather

// than adding another moving part to the code...

vertices[vertexCount][X] = x;

vertices[vertexCount][Y] = y;

vertexCount++;

switch (shape) {

case POINTS:

point(x, y);

break;

case LINES:

if ((vertexCount % 2) == 0) {

line(vertices[vertexCount-2][X],

vertices[vertexCount-2][Y], x, y);

}

break;

case TRIANGLES:

if ((vertexCount % 3) == 0) {

triangle(vertices[vertexCount - 3][X],

vertices[vertexCount - 3][Y],

vertices[vertexCount - 2][X],

vertices[vertexCount - 2][Y],

x, y);

}

break;

case TRIANGLE_STRIP:

if (vertexCount >= 3) {

triangle(vertices[vertexCount - 2][X],

vertices[vertexCount - 2][Y],

vertices[vertexCount - 1][X],

vertices[vertexCount - 1][Y],

vertices[vertexCount - 3][X],

vertices[vertexCount - 3][Y]);

}

break;

case TRIANGLE_FAN:

if (vertexCount >= 3) {

// This is an unfortunate implementation because the stroke for an

// adjacent triangle will be repeated. However, if the stroke is not

// redrawn, it will replace the adjacent line (when it lines up

// perfectly) or show a faint line (when off by a small amount).

// The alternative would be to wait, then draw the shape as a

// polygon fill, followed by a series of vertices. But that's a

// poor method when used with PDF, DXF, or other recording objects,

// since discrete triangles would likely be preferred.

triangle(vertices[0][X],

vertices[0][Y],

vertices[vertexCount - 2][X],

vertices[vertexCount - 2][Y],

x, y);

}

break;

case QUAD:

case QUADS:

if ((vertexCount % 4) == 0) {

quad(vertices[vertexCount - 4][X],

vertices[vertexCount - 4][Y],

vertices[vertexCount - 3][X],

vertices[vertexCount - 3][Y],

vertices[vertexCount - 2][X],

vertices[vertexCount - 2][Y],

x, y);

}

break;

case QUAD_STRIP:

// 0---2---4

// | | |

// 1---3---5

if ((vertexCount >= 4) && ((vertexCount % 2) == 0)) {

quad(vertices[vertexCount - 4][X],

vertices[vertexCount - 4][Y],

vertices[vertexCount - 2][X],

vertices[vertexCount - 2][Y],

x, y,

vertices[vertexCount - 3][X],

vertices[vertexCount - 3][Y]);

}

break;

case POLYGON:

if (workPath.getNumCommands() == 0 || breakShape) {

workPath.moveTo(x, y);

breakShape = false;

} else {

workPath.lineTo(x, y);

}

break;

}

@Override

public void vertex(float x, float y, float z) {

showDepthWarningXYZ("vertex");

}

@Override

public void vertex(float[] v) {

vertex(v[X], v[Y]);

}

@Override

public void vertex(float x, float y, float u, float v) {

showVariationWarning("vertex(x, y, u, v)");

}

@Override

public void vertex(float x, float y, float z, float u, float v) {

showDepthWarningXYZ("vertex");

}

@Override

public void beginContour() {

if (openContour) {

PGraphics.showWarning("Already called beginContour()");

return;

}

// draw contours to auxiliary path so main path can be closed later

Path2D contourPath = auxPath;

auxPath = workPath;

workPath = contourPath;

if (contourPath.getNumCommands() > 0) { // first contour does not break

breakShape = true;

}

openContour = true;

}

@Override

public void endContour() {

if (!openContour) {

PGraphics.showWarning("Need to call beginContour() first");

return;

}

if (workPath.getNumCommands() > 0) workPath.closePath();

Path2D temp = workPath;

workPath = auxPath;

auxPath = temp;

openContour = false;

}

@Override

public void endShape(int mode) {

if (openContour) { // correct automagically, notify user

endContour();

PGraphics.showWarning("Missing endContour() before endShape()");

}

if (workPath.getNumCommands() > 0) {

if (shape == POLYGON) {

if (mode == CLOSE) {

workPath.closePath();

}

if (auxPath.getNumCommands() > 0) {

workPath.append(auxPath, false);

}

drawShape(workPath);

}

shape = 0;

if (adjustedForThinLines) {

adjustedForThinLines = false;

translate(-0.5f, -0.5f);

}

loaded = false;

}

private void drawShape(Shape s) {

context.beginPath();

PathIterator pi = s.getPathIterator(null);

while (!pi.isDone()) {

int pitype = pi.currentSegment(pathCoordsBuffer);

switch (pitype) {

case PathIterator.SEG_MOVETO:

context.moveTo(pathCoordsBuffer[0], pathCoordsBuffer[1]);

break;

case PathIterator.SEG_LINETO:

context.lineTo(pathCoordsBuffer[0], pathCoordsBuffer[1]);

break;

case PathIterator.SEG_QUADTO:

context.quadraticCurveTo(pathCoordsBuffer[0], pathCoordsBuffer[1],

pathCoordsBuffer[2], pathCoordsBuffer[3]);

break;

case PathIterator.SEG_CUBICTO:

context.bezierCurveTo(pathCoordsBuffer[0], pathCoordsBuffer[1],

pathCoordsBuffer[2], pathCoordsBuffer[3],

pathCoordsBuffer[4], pathCoordsBuffer[5]);

break;

case PathIterator.SEG_CLOSE:

context.closePath();

break;

default:

showWarning("Unknown segment type " + pitype);

}

pi.next();

}

if (fill) context.fill();

if (stroke) context.stroke();

}

//////////////////////////////////////////////////////////////

// CLIPPING

@Override

protected void clipImpl(float x1, float y1, float x2, float y2) {

//g2.setClip(new Rectangle2D.Float(x1, y1, x2 - x1, y2 - y1));

showTodoWarning("clip()", 3274);

}

@Override

public void noClip() {

//g2.setClip(null);

showTodoWarning("noClip()", 3274);

}

//////////////////////////////////////////////////////////////

// BLEND

@Override

protected void blendModeImpl() {

BlendMode mode = BlendMode.SRC_OVER;

switch (blendMode) {

case REPLACE: showWarning("blendMode(REPLACE) is not supported"); break;

case BLEND: break; // this is SRC_OVER, the default

case ADD: mode = BlendMode.ADD; break; // everyone's favorite

case SUBTRACT: showWarning("blendMode(SUBTRACT) is not supported"); break;

case LIGHTEST: mode = BlendMode.LIGHTEN; break;

case DARKEST: mode = BlendMode.DARKEN; break;

case DIFFERENCE: mode = BlendMode.DIFFERENCE; break;

case EXCLUSION: mode = BlendMode.EXCLUSION; break;

case MULTIPLY: mode = BlendMode.MULTIPLY; break;

case SCREEN: mode = BlendMode.SCREEN; break;

case OVERLAY: mode = BlendMode.OVERLAY; break;

case HARD_LIGHT: mode = BlendMode.HARD_LIGHT; break;

case SOFT_LIGHT: mode = BlendMode.SOFT_LIGHT; break;

case DODGE: mode = BlendMode.COLOR_DODGE; break;

case BURN: mode = BlendMode.COLOR_BURN; break;

}

context.setGlobalBlendMode(mode);

}

//////////////////////////////////////////////////////////////

// BEZIER VERTICES

@Override

protected void bezierVertexCheck() {

if (shape == 0 || shape != POLYGON) {

throw new RuntimeException("beginShape() or beginShape(POLYGON) " +

"must be used before bezierVertex() or quadraticVertex()");

}

if (workPath.getNumCommands() == 0) {

throw new RuntimeException("vertex() must be used at least once " +

"before bezierVertex() or quadraticVertex()");

}

@Override

public void bezierVertex(float x1, float y1,

float x2, float y2,

float x3, float y3) {

bezierVertexCheck();

workPath.curveTo(x1, y1, x2, y2, x3, y3);

}

@Override

public void bezierVertex(float x2, float y2, float z2,

float x3, float y3, float z3,

float x4, float y4, float z4) {

showDepthWarningXYZ("bezierVertex");

}

//////////////////////////////////////////////////////////////

// QUADRATIC BEZIER VERTICES

@Override

public void quadraticVertex(float ctrlX, float ctrlY,

float endX, float endY) {

bezierVertexCheck();

workPath.quadTo(ctrlX, ctrlY, endX, endY);

}

@Override

public void quadraticVertex(float x2, float y2, float z2,

float x4, float y4, float z4) {

showDepthWarningXYZ("quadVertex");

}

//////////////////////////////////////////////////////////////

// CURVE VERTICES

@Override

protected void curveVertexSegment(float x1, float y1,

float x2, float y2,

float x3, float y3,

float x4, float y4) {

if (curveCoordX == null) {

curveCoordX = new float[4];

curveCoordY = new float[4];

curveDrawX = new float[4];

curveDrawY = new float[4];

}

curveCoordX[0] = x1;

curveCoordY[0] = y1;

curveCoordX[1] = x2;

curveCoordY[1] = y2;

curveCoordX[2] = x3;

curveCoordY[2] = y3;

curveCoordX[3] = x4;

curveCoordY[3] = y4;

curveToBezierMatrix.mult(curveCoordX, curveDrawX);

curveToBezierMatrix.mult(curveCoordY, curveDrawY);

// since the paths are continuous,

// only the first point needs the actual moveto

if (workPath.getNumCommands() == 0) {

workPath.moveTo(curveDrawX[0], curveDrawY[0]);

breakShape = false;

}

workPath.curveTo(curveDrawX[1], curveDrawY[1],

curveDrawX[2], curveDrawY[2],

curveDrawX[3], curveDrawY[3]);

}

@Override

public void curveVertex(float x, float y, float z) {

showDepthWarningXYZ("curveVertex");

}

//////////////////////////////////////////////////////////////

// RENDERER

@Override

public void flush() {

flushPixels();

}

protected void flushPixels() {

boolean hasPixels = modified && pixels != null;

if (hasPixels) {

// If the user has been manipulating individual pixels,

// the changes need to be copied to the screen before

// drawing any new geometry.

int mx1 = getModifiedX1();

int mx2 = getModifiedX2();

int my1 = getModifiedY1();

int my2 = getModifiedY2();

int mw = mx2 - mx1;

int mh = my2 - my1;

if (pixelDensity == 1) {

PixelWriter pw = context.getPixelWriter();

pw.setPixels(mx1, my1, mw, mh, argbFormat, pixels,

mx1 + my1 * pixelWidth, pixelWidth);

} else {

// The only way to push all the pixels is to draw a scaled-down image

if (snapshotImage == null ||

snapshotImage.getWidth() != pixelWidth ||

snapshotImage.getHeight() != pixelHeight) {

snapshotImage = new WritableImage(pixelWidth, pixelHeight);

}

PixelWriter pw = snapshotImage.getPixelWriter();

pw.setPixels(mx1, my1, mw, mh, argbFormat, pixels,

mx1 + my1 * pixelWidth, pixelWidth);

context.save();

resetMatrix();

context.scale(1d / pixelDensity, 1d / pixelDensity);

context.drawImage(snapshotImage, mx1, my1, mw, mh, mx1, my1, mw, mh);

context.restore();

}

modified = false;

}

protected void beforeContextDraw() {

flushPixels();

loaded = false;

}

//////////////////////////////////////////////////////////////

// POINT, LINE, TRIANGLE, QUAD

@Override

public void point(float x, float y) {

if (stroke) {

// if (strokeWeight > 1) {

line(x, y, x + EPSILON, y + EPSILON);

// } else {

// set((int) screenX(x, y), (int) screenY(x, y), strokeColor);

// }

}

@Override

public void line(float x1, float y1, float x2, float y2) {

beforeContextDraw();

if (drawingThinLines()) {

x1 += 0.5f;

x2 += 0.5f;

y1 += 0.5f;

y2 += 0.5f;

}

context.strokeLine(x1, y1, x2, y2);

}

@Override

public void triangle(float x1, float y1, float x2, float y2,

float x3, float y3) {

beforeContextDraw();

if (drawingThinLines()) {

x1 += 0.5f;

x2 += 0.5f;

x3 += 0.5f;

y1 += 0.5f;

y2 += 0.5f;

y3 += 0.5f;

}

context.beginPath();

context.moveTo(x1, y1);

context.lineTo(x2, y2);

context.lineTo(x3, y3);

context.closePath();

if (fill) context.fill();

if (stroke) context.stroke();

}

@Override

public void quad(float x1, float y1, float x2, float y2,

float x3, float y3, float x4, float y4) {

beforeContextDraw();

if (drawingThinLines()) {

x1 += 0.5f;

x2 += 0.5f;

x3 += 0.5f;

x4 += 0.5f;

y1 += 0.5f;

y2 += 0.5f;

y3 += 0.5f;

y4 += 0.5f;

}

context.beginPath();

context.moveTo(x1, y1);

context.lineTo(x2, y2);

context.lineTo(x3, y3);

context.lineTo(x4, y4);

context.closePath();

if (fill) context.fill();

if (stroke) context.stroke();

}

//////////////////////////////////////////////////////////////

// RECT

//public void rectMode(int mode)

//public void rect(float a, float b, float c, float d)

@Override

protected void rectImpl(float x1, float y1, float x2, float y2) {

beforeContextDraw();

if (drawingThinLines()) {

x1 += 0.5f;

x2 += 0.5f;

y1 += 0.5f;

y2 += 0.5f;

}

if (fill) context.fillRect(x1, y1, x2 - x1, y2 - y1);

if (stroke) context.strokeRect(x1, y1, x2 - x1, y2 - y1);

}

//////////////////////////////////////////////////////////////

// ELLIPSE

//public void ellipseMode(int mode)

//public void ellipse(float a, float b, float c, float d)

@Override

protected void ellipseImpl(float x, float y, float w, float h) {

beforeContextDraw();

if (drawingThinLines()) {

x += 0.5f;

y += 0.5f;

}

if (fill) context.fillOval(x, y, w, h);

if (stroke) context.strokeOval(x, y, w, h);

}

//////////////////////////////////////////////////////////////

// ARC

//public void arc(float a, float b, float c, float d,

// float start, float stop)

@Override

protected void arcImpl(float x, float y, float w, float h,

float start, float stop, int mode) {

beforeContextDraw();

if (drawingThinLines()) {

x += 0.5f;

y += 0.5f;

}

// 0 to 90 in java would be 0 to -90 for p5 renderer

// but that won't work, so -90 to 0?

start = -start;

stop = -stop;

float sweep = stop - start;

// The defaults, before 2.0b7, were to stroke as Arc2D.OPEN, and then fill

// using Arc2D.PIE. That's a little wonky, but it's here for compatability.

ArcType fillMode = ArcType.ROUND; // Arc2D.PIE

ArcType strokeMode = ArcType.OPEN;

if (mode == OPEN) {

fillMode = ArcType.OPEN;

} else if (mode == PIE) {

strokeMode = ArcType.ROUND; // PIE

} else if (mode == CHORD) {

fillMode = ArcType.CHORD;

strokeMode = ArcType.CHORD;

}

if (fill) {

context.fillArc(x, y, w, h, PApplet.degrees(start), PApplet.degrees(sweep), fillMode);

}

if (stroke) {

context.strokeArc(x, y, w, h, PApplet.degrees(start), PApplet.degrees(sweep), strokeMode);

}

//////////////////////////////////////////////////////////////

// BOX

//public void box(float size)

@Override

public void box(float w, float h, float d) {

showMethodWarning("box");

}

//////////////////////////////////////////////////////////////

// SPHERE

//public void sphereDetail(int res)

//public void sphereDetail(int ures, int vres)

@Override

public void sphere(float r) {

showMethodWarning("sphere");

}

//////////////////////////////////////////////////////////////

// BEZIER

//public float bezierPoint(float a, float b, float c, float d, float t)

//public float bezierTangent(float a, float b, float c, float d, float t)

//protected void bezierInitCheck()

//protected void bezierInit()

/** Ignored (not needed) by this renderer. */

@Override

public void bezierDetail(int detail) { }

//public void bezier(float x1, float y1,

// float x2, float y2,

// float x3, float y3,

// float x4, float y4)

//public void bezier(float x1, float y1, float z1,

// float x2, float y2, float z2,

// float x3, float y3, float z3,

// float x4, float y4, float z4)

//////////////////////////////////////////////////////////////

// CURVE

//public float curvePoint(float a, float b, float c, float d, float t)

//public float curveTangent(float a, float b, float c, float d, float t)

/** Ignored (not needed) by this renderer. */

@Override

public void curveDetail(int detail) { }

//public void curveTightness(float tightness)

//protected void curveInitCheck()

//protected void curveInit()

//public void curve(float x1, float y1,

// float x2, float y2,

// float x3, float y3,

// float x4, float y4)

//public void curve(float x1, float y1, float z1,

// float x2, float y2, float z2,

// float x3, float y3, float z3,

// float x4, float y4, float z4)

//////////////////////////////////////////////////////////////

// SMOOTH

// @Override

// public void smooth() {

// smooth = true;

// if (quality == 0) {

// quality = 4; // change back to bicubic

// }

// @Override

// public void smooth(int quality) {

//// this.quality = quality;

//// if (quality == 0) {

//// noSmooth();

//// } else {

//// smooth();

//// }

// showMissingWarning("smooth");

// }

// @Override

// public void noSmooth() {

// showMissingWarning("noSmooth");

// }

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processing/core/src/processing/javafx/PGraphicsFX2D.java at master · processing/processing · GitHub

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