/*
* Copyright (C) 2010-2016 JPEXS, All rights reserved.
*
* 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; either
* version 3.0 of the License, or (at your option) any later version.
*
* 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.
*/
package com.jpexs.decompiler.flash.exporters.shape;
import com.jpexs.decompiler.flash.SWF;
import com.jpexs.decompiler.flash.exporters.commonshape.Matrix;
import com.jpexs.decompiler.flash.exporters.commonshape.Point;
import com.jpexs.decompiler.flash.tags.base.ImageTag;
import com.jpexs.decompiler.flash.types.ColorTransform;
import com.jpexs.decompiler.flash.types.FILLSTYLE;
import com.jpexs.decompiler.flash.types.GRADIENT;
import com.jpexs.decompiler.flash.types.GRADRECORD;
import com.jpexs.decompiler.flash.types.LINESTYLE2;
import com.jpexs.decompiler.flash.types.RECT;
import com.jpexs.decompiler.flash.types.RGB;
import com.jpexs.decompiler.flash.types.RGBA;
import com.jpexs.decompiler.flash.types.SHAPE;
import com.jpexs.helpers.Helper;
import com.jpexs.helpers.SerializableImage;
import java.awt.Color;
/**
*
* @author JPEXS
*/
public class CanvasShapeExporter extends ShapeExporterBase {
protected static final String DRAW_COMMAND_M = "M";
protected static final String DRAW_COMMAND_L = "L";
protected static final String DRAW_COMMAND_Q = "Q";
protected String currentDrawCommand = "";
protected StringBuilder pathData = new StringBuilder();
protected StringBuilder shapeData = new StringBuilder();
protected StringBuilder strokeData = new StringBuilder();
protected StringBuilder fillData = new StringBuilder();
protected double deltaX = 0;
protected double deltaY = 0;
protected Matrix fillMatrix = null;
protected String lastRadColor = null;
protected SWF swf;
protected int repeatCnt = 0;
protected double unitDivisor;
protected RGB basicFill;
protected StringBuilder lineFillData = null;
protected String lineLastRadColor = null;
protected Matrix lineFillMatrix = null;
protected int lineRepeatCnt = 0;
protected int fillWidth = 0;
protected int fillHeight = 0;
public static String getJsPrefix() {
return "<script>var canvas=document.getElementById(\"myCanvas\");\r\n"
+ "var ctx=canvas.getContext(\"2d\");\r\n"
+ "enhanceContext(ctx);\r\n"
+ "var ctrans = new cxform(0,0,0,0,255,255,255,255);\r\n";
}
public static String getHtmlPrefix(int width, int height) {
return "<!DOCTYPE html>\r\n"
+ "<html>\r\n"
+ "<head>"
+ "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />"
+ "<script type=\"text/javascript\" src=\"canvas.js\"></script>"
+ "<style type=\"text/css\">"
+ "#resizable {position:relative; display:inline-block; margin:0; padding:0;font-size:0px;} "
+ "#width_size {width:10px; position:absolute; right:-5px; top:0px; bottom:0px; cursor:e-resize;"
+ "-webkit-touch-callout: none; -webkit-user-select: none; -khtml-user-select: none; -moz-user-select: none; -ms-user-select: none; user-select: none;"
+ "} "
+ "#height_size {height:10px; position:absolute; bottom:-5px; left:0px; right:0px; cursor:n-resize;"
+ "-webkit-touch-callout: none; -webkit-user-select: none; -khtml-user-select: none; -moz-user-select: none; -ms-user-select: none; user-select: none;"
+ "} "
/*+ "#both_size {height:10px; width:10px; position:absolute; bottom:-5px; right:-5px; cursor:nw-resize;"+
"-webkit-touch-callout: none; -webkit-user-select: none; -khtml-user-select: none; -moz-user-select: none; -ms-user-select: none; user-select: none;"
+"} "*/
+ "#myCanvas {margin:0; padding:0;} "
+ "</style>"
+ "</head>"
+ "<body>\r\n"
+ "\r\n"
+ "<div id=\"resizable\"><canvas id=\"myCanvas\" width=\"" + width + "\" height=\"" + height + "\" style=\"border:1px solid #c3c3c3;\">\r\n"
+ "Your browser does not support the HTML5 canvas tag.\r\n"
+ "</canvas><div id=\"width_size\"> </div><div id=\"height_size\"> </div>"
//+ "<div id=\"both_size\"> </div>"
+ "</div>\r\n"
+ "\r\n";
}
public static String getJsSuffix() {
return "</script>\r\n";
}
public static String getHtmlSuffix() {
return "</body>\r\n"
+ "</html>";
}
private String getDrawJs(int width, int height, String id, RECT rect) {
return "var originalWidth=" + width + ";\r\nvar originalHeight=" + height + ";\r\n function drawFrame(){\r\n"
+ "\tctx.save();\r\n\tctx.transform(canvas.width/originalWidth,0,0,canvas.height/originalHeight,0,0);\r\n"
+ "\tplace(\"" + id + "\",canvas,ctx,[" + (1 / unitDivisor) + ",0.0,0.0," + (1 / unitDivisor) + ","
+ (-rect.Xmin / unitDivisor) + "," + (-rect.Ymin / unitDivisor) + "],ctrans,1,0,0,0);\r\n"
+ "\tctx.restore();\r\n}\r\n\tdrawFrame();\r\n";
}
public String getHtml(String needed, String id, RECT rect) {
int width = (int) (rect.getWidth() / unitDivisor);
int height = (int) (rect.getHeight() / unitDivisor);
return getHtmlPrefix(width, height) + getJsPrefix() + needed + getDrawJs(width, height, id, rect) + getJsSuffix() + getHtmlSuffix();
}
public String getShapeData() {
return shapeData.toString();
}
public CanvasShapeExporter(RGB basicFill, double unitDivisor, SWF swf, SHAPE shape, ColorTransform colorTransform, int deltaX, int deltaY) {
super(swf, shape, colorTransform);
this.swf = swf;
this.unitDivisor = unitDivisor;
this.basicFill = basicFill;
this.deltaX = deltaX;
this.deltaY = deltaY;
}
@Override
public void beginShape() {
shapeData = new StringBuilder();
}
@Override
public void endShape() {
}
@Override
public void beginFills() {
}
@Override
public void endFills() {
}
@Override
public void beginLines() {
}
@Override
public void endLines(boolean close) {
if (close) {
pathData.append('Z').append(" ");
}
finalizePath();
}
@Override
public void beginFill(RGB color) {
finalizePath();
if (color == null) {
fillData.append("\tctx.fillStyle=defaultFill;\r\n");
} else {
fillData.append("\tctx.fillStyle=").append(color(color)).append(";\r\n");
}
}
@Override
public void beginGradientFill(int type, GRADRECORD[] gradientRecords, Matrix matrix, int spreadMethod, int interpolationMethod, float focalPointRatio) {
finalizePath();
//TODO: How many repeats is ideal?
final int REPEAT_CNT = 5;
repeatCnt = spreadMethod == GRADIENT.SPREAD_PAD_MODE ? 0 : REPEAT_CNT;
if (type == FILLSTYLE.LINEAR_GRADIENT) {
Point start = matrix.transform(new Point(-16384 - 32768 * repeatCnt, 0));
Point end = matrix.transform(new Point(16384 + 32768 * repeatCnt, 0));
start.x += deltaX;
start.y += deltaY;
end.x += deltaX;
end.y += deltaY;
fillData.append("\tvar grd=ctx.createLinearGradient(").append(start.x / unitDivisor).append(",").append(start.y / unitDivisor).append(",").append(end.x / unitDivisor).append(",").append(end.y / unitDivisor).append(");\r\n");
} else {
fillMatrix = matrix;
fillData.append("\tvar grd=ctx.createRadialGradient(").append(focalPointRatio * 16384).append(",0,0,0,0,").append(16384 + 32768 * repeatCnt).append(");\r\n");
}
int repeatTotal = repeatCnt * 2 + 1;
double oneHeight = 1.0 / repeatTotal;
double pos = 0;
boolean revert = false;
if (type != FILLSTYLE.LINEAR_GRADIENT && spreadMethod == GRADIENT.SPREAD_REFLECT_MODE) {
revert = true;
}
for (int i = 0; i < repeatTotal; i++) {
if (spreadMethod == GRADIENT.SPREAD_REFLECT_MODE) {
revert = !revert;
}
for (GRADRECORD r : gradientRecords) {
fillData.append("\tgrd.addColorStop(").append(pos + (oneHeight * (revert ? 255 - r.ratio : r.ratio) / 255.0)).append(",").append(color(r.color)).append(");\r\n");
lastRadColor = color(r.color);
}
pos += oneHeight;
}
fillData.append("\tctx.fillStyle = grd;\r\n");
}
public static String color(int color) {
return color(new RGBA(color));
}
public static String color(RGB rgb) {
if ((rgb instanceof RGBA) && (((RGBA) rgb).alpha < 255)) {
RGBA rgba = (RGBA) rgb;
return "tocolor(ctrans.apply([" + rgba.red + "," + rgba.green + "," + rgba.blue + "," + rgba.getAlphaFloat() + "]))";
} else {
return "tocolor(ctrans.apply([" + rgb.red + "," + rgb.green + "," + rgb.blue + ",1]))";
}
}
@Override
public void beginBitmapFill(int bitmapId, Matrix matrix, boolean repeat, boolean smooth, ColorTransform colorTransform) {
finalizePath();
ImageTag image = swf.getImage(bitmapId);
if (image != null) {
SerializableImage img = image.getImageCached();
if (img != null) {
fillWidth = img.getWidth();
fillHeight = img.getHeight();
if (colorTransform != null) {
colorTransform.apply(img);
}
if (matrix != null) {
fillMatrix = matrix;
}
fillData.append("\tvar fimg = ctrans.applyToImage(imageObj").append(bitmapId).append(");\r\n");
fillData.append("\tvar pat=ctx.createPattern(fimg,\"repeat\");\r\n");
fillData.append("\tctx.fillStyle = pat;\r\n");
return;
}
}
fillData.append("\tctx.fillStyle=").append(color(Color.RED.getRGB())).append(";\r\n");
}
@Override
public void endFill() {
finalizePath();
}
@Override
public void lineStyle(double thickness, RGB color, boolean pixelHinting, String scaleMode, int startCaps, int endCaps, int joints, float miterLimit) {
finalizePath();
thickness /= SWF.unitDivisor;
strokeData.append("\tvar scaleMode = \"").append(scaleMode).append("\";\r\n");
if (color != null) { //gradient lines have no color
strokeData.append("\tctx.strokeStyle=").append(color(color)).append(";\r\n");
}
strokeData.append("\tctx.lineWidth=").append(thickness == 0 ? 1 : thickness).append(";\r\n");
switch (startCaps) {
case LINESTYLE2.NO_CAP:
strokeData.append("\tctx.lineCap=\"butt\";\r\n");
break;
case LINESTYLE2.SQUARE_CAP:
strokeData.append("\tctx.lineCap=\"square\";\r\n");
break;
default:
strokeData.append("\tctx.lineCap=\"round\";\r\n");
break;
}
switch (joints) {
case LINESTYLE2.BEVEL_JOIN:
strokeData.append("\tctx.lineJoin=\"bevel\";\r\n");
break;
case LINESTYLE2.ROUND_JOIN:
strokeData.append("\tctx.lineJoin=\"round\";\r\n");
break;
default:
strokeData.append("\tctx.lineJoin=\"miter\";\r\n");
strokeData.append("\tctx.miterLimit=").append(miterLimit).append(";\r\n");
break;
}
}
@Override
public void lineGradientStyle(int type, GRADRECORD[] gradientRecords, Matrix matrix, int spreadMethod, int interpolationMethod, float focalPointRatio) {
lineFillData = new StringBuilder();
//TODO: How many repeats is ideal?
final int REPEAT_CNT = 5;
lineRepeatCnt = spreadMethod == GRADIENT.SPREAD_PAD_MODE ? 0 : REPEAT_CNT;
if (type == FILLSTYLE.LINEAR_GRADIENT) {
Point start = matrix.transform(new Point(-16384 - 32768 * lineRepeatCnt, 0));
Point end = matrix.transform(new Point(16384 + 32768 * lineRepeatCnt, 0));
start.x += deltaX;
start.y += deltaY;
end.x += deltaX;
end.y += deltaY;
lineFillData.append("\tvar grd=ctx.createLinearGradient(").append(Double.toString(start.x / unitDivisor)).append(",").append(Double.toString(start.y / unitDivisor)).append(",").append(Double.toString(end.x / unitDivisor)).append(",").append(Double.toString(end.y / unitDivisor)).append(");\r\n");
} else {
lineFillMatrix = matrix;
lineFillData.append("\tvar grd=ctx.createRadialGradient(").append(focalPointRatio * 16384).append(",0,0,0,0,").append(16384 + 32768 * lineRepeatCnt).append(");\r\n");
}
int repeatTotal = lineRepeatCnt * 2 + 1;
double oneHeight = 1.0 / repeatTotal;
double pos = 0;
boolean revert = false;
if (type != FILLSTYLE.LINEAR_GRADIENT && spreadMethod == GRADIENT.SPREAD_REFLECT_MODE) {
revert = true;
}
for (int i = 0; i < repeatTotal; i++) {
if (spreadMethod == GRADIENT.SPREAD_REFLECT_MODE) {
revert = !revert;
}
for (GRADRECORD r : gradientRecords) {
lineFillData.append("\tgrd.addColorStop(").append(Double.toString(pos + (oneHeight * (revert ? 255 - r.ratio : r.ratio) / 255.0))).append(",").append(color(r.color)).append(");\r\n");
lineLastRadColor = color(r.color);
}
pos += oneHeight;
}
lineFillData.append("\tctx.fillStyle = grd;\r\n");
String preStrokeData = "";
preStrokeData += "\tvar lcanvas = document.createElement(\"canvas\");\r\n";
preStrokeData += "\tlcanvas.width = canvas.width;\r\n";
preStrokeData += "\tlcanvas.height=canvas.height;\r\n";
preStrokeData += "\tvar lctx = lcanvas.getContext(\"2d\");\r\n";
preStrokeData += "\tenhanceContext(lctx);\r\n";
preStrokeData += "\tlctx.applyTransforms(ctx._matrix);\r\n";
preStrokeData += "\tctx = lctx;\r\n";
strokeData.insert(0, preStrokeData);
}
@Override
public void moveTo(double x, double y) {
currentDrawCommand = DRAW_COMMAND_M;
pathData.append(currentDrawCommand).append(" ");
x += deltaX;
y += deltaY;
pathData.append(Helper.doubleStr(x / unitDivisor)).append(" ")
.append(Helper.doubleStr(y / unitDivisor)).append(" ");
}
@Override
public void lineTo(double x, double y) {
if (!currentDrawCommand.equals(DRAW_COMMAND_L)) {
currentDrawCommand = DRAW_COMMAND_L;
pathData.append(currentDrawCommand).append(" ");
}
x += deltaX;
y += deltaY;
pathData.append(Helper.doubleStr(x / unitDivisor)).append(" ")
.append(Helper.doubleStr(y / unitDivisor)).append(" ");
}
@Override
public void curveTo(double controlX, double controlY, double anchorX, double anchorY) {
if (!currentDrawCommand.equals(DRAW_COMMAND_Q)) {
currentDrawCommand = DRAW_COMMAND_Q;
pathData.append(currentDrawCommand).append(" ");
}
controlX += deltaX;
anchorX += deltaX;
controlY += deltaY;
anchorY += deltaY;
pathData.append(Helper.doubleStr(controlX / unitDivisor)).append(" ")
.append(Helper.doubleStr(controlY / unitDivisor)).append(" ")
.append(Helper.doubleStr(anchorX / unitDivisor)).append(" ")
.append(Helper.doubleStr(anchorY / unitDivisor)).append(" ");
}
protected void finalizePath() {
if (pathData != null && pathData.length() > 0) {
shapeData.append("\tvar pathData=\"").append(pathData.toString().trim()).append("\";\r\n");
String drawStroke = "\tdrawPath(ctx,pathData,true,scaleMode);\r\n";
String drawFill = "\tdrawPath(ctx,pathData,false);\r\n";;
pathData = new StringBuilder();
if (lineFillData != null) {
StringBuilder preLineFillData = new StringBuilder();
preLineFillData.append("\tvar oldctx = ctx;\r\n");
preLineFillData.append("\tctx.save();\r\n");
preLineFillData.append(strokeData);
preLineFillData.append(drawStroke);
preLineFillData.append("\tvar lfcanvas = document.createElement(\"canvas\");\r\n");
preLineFillData.append("\tlfcanvas.width = canvas.width;\r\n");
preLineFillData.append("\tlfcanvas.height=canvas.height;\r\n");
preLineFillData.append("\tvar lfctx = lfcanvas.getContext(\"2d\");\r\n");
preLineFillData.append("\tenhanceContext(lfctx);\r\n");
preLineFillData.append("\tlfctx.applyTransforms(ctx._matrix);\r\n");
preLineFillData.append("\tctx = lfctx;");
if (lineLastRadColor != null) {
preLineFillData.append("\tctx.fillStyle=").append(lineLastRadColor).append(";\r\n\tctx.fill(\"evenodd\");\r\n");
}
if (lineFillMatrix != null) {
preLineFillData.append("\tctx.transform(").append(Helper.doubleStr(lineFillMatrix.scaleX / unitDivisor))
.append(",").append(Helper.doubleStr(lineFillMatrix.rotateSkew0 / unitDivisor))
.append(",").append(Helper.doubleStr(lineFillMatrix.rotateSkew1 / unitDivisor))
.append(",").append(Helper.doubleStr(lineFillMatrix.scaleY / unitDivisor))
.append(",").append(Helper.doubleStr((lineFillMatrix.translateX + deltaX) / unitDivisor))
.append(",").append(Helper.doubleStr((lineFillMatrix.translateY + deltaY) / unitDivisor)).append(");\r\n");
}
lineFillData.insert(0, preLineFillData);
lineFillData.append("\tctx.fillRect(").append(-16384 - 32768 * lineRepeatCnt).append(",").append(-16384 - 32768 * lineRepeatCnt).append(",").append(2 * 16384 + 32768 * 2 * lineRepeatCnt).append(",").append(2 * 16384 + 32768 * 2 * lineRepeatCnt).append(");\r\n");
lineFillData.append("\tctx = oldctx;\r\n");
//lcanvas - stroke
//lfcanvas - stroke background
lineFillData.append("\tvar limgd = lctx.getImageData(0, 0, lcanvas.width, lcanvas.height);\r\n"
+ "\tvar lpix = limgd.data;\r\n"
+ "\tvar lfimgd = lfctx.getImageData(0, 0, lfcanvas.width, lfcanvas.height);\r\n"
+ "\tvar lfpix = lfimgd.data;\r\n"
+ "\tvar imgd = ctx.getImageData(0, 0, canvas.width, canvas.height);\r\n"
+ "\tvar pix = imgd.data;\r\n"
+ "\tfor (var i = 0; i < lpix.length; i += 4) {\r\n"
+ "\t\tif(lpix[i+3]>0){ pix[i] = lfpix[i]; pix[i+1] = lfpix[i+1]; pix[i+2] = lfpix[i+2]; pix[i+3] = lfpix[i+3];}\r\n"
+ "\t}\r\n"
+ "\tctx.putImageData(imgd, 0, 0);\r\n");
lineFillData.append("\tctx.restore();\r\n");
strokeData = new StringBuilder();
} else {
pathData.append(strokeData);
}
if (fillMatrix != null) {
pathData.append(drawFill);
if (lastRadColor != null) {
pathData.append("\tctx.fillStyle=").append(lastRadColor).append(";\r\n\tctx.fill(\"evenodd\");\r\n");
}
pathData.append("\tctx.save();\r\n");
pathData.append("\tctx.clip();\r\n");
pathData.append("\tctx.transform(").append(Helper.doubleStr(fillMatrix.scaleX / unitDivisor))
.append(",").append(Helper.doubleStr(fillMatrix.rotateSkew0 / unitDivisor))
.append(",").append(Helper.doubleStr(fillMatrix.rotateSkew1 / unitDivisor))
.append(",").append(Helper.doubleStr(fillMatrix.scaleY / unitDivisor))
.append(",").append(Helper.doubleStr((fillMatrix.translateX + deltaX) / unitDivisor))
.append(",").append(Helper.doubleStr((fillMatrix.translateY + deltaY) / unitDivisor)).append(");\r\n");
if (fillWidth > 0) {//repeating bitmap glitch fix
//make bitmap 1px wider
double s_w = (fillWidth + 1) / (double) fillWidth;
double s_h = (fillHeight + 1) / (double) fillHeight;
pathData.append("\tctx.transform(").append(s_w).append(",0,0,").append(s_h).append(",-0.5,-0.5);\r\n");
}
pathData.append(fillData);
pathData.append("\tctx.fillRect(").append(-16384 - 32768 * repeatCnt).append(",").append(-16384 - 32768 * repeatCnt).append(",").append(2 * 16384 + 32768 * 2 * repeatCnt).append(",").append(2 * 16384 + 32768 * 2 * repeatCnt).append(");\r\n");
pathData.append("\tctx.restore();\r\n");
shapeData.append(pathData);
} else {
if (fillData != null && fillData.length() > 0) {
pathData.append(drawFill).append("\tctx.fill(\"evenodd\");\r\n");
}
shapeData.append(fillData).append(pathData);
}
if (strokeData != null && strokeData.length() > 0) {
shapeData.append(drawStroke).append("\r\n");
} else if (lineFillData != null) {
shapeData.append(lineFillData);
}
}
repeatCnt = 0;
pathData = new StringBuilder();
fillData = new StringBuilder();
strokeData = new StringBuilder();
fillMatrix = null;
lastRadColor = null;
lineRepeatCnt = 0;
lineFillData = null;
lineLastRadColor = null;
lineFillMatrix = null;
fillWidth = 0;
fillHeight = 0;
}
}