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libreoffice/cppcanvas/source/mtfrenderer/emfpbrush.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <com/sun/star/rendering/PathCapType.hpp>
#include <com/sun/star/rendering/PathJoinType.hpp>
#include <com/sun/star/rendering/TexturingMode.hpp>
#include <com/sun/star/rendering/XCanvas.hpp>
#include <basegfx/tools/canvastools.hxx>
#include <basegfx/tools/gradienttools.hxx>
#include <basegfx/tools/tools.hxx>
#include <basegfx/numeric/ftools.hxx>
#include <basegfx/point/b2dpoint.hxx>
#include <basegfx/vector/b2dsize.hxx>
#include <basegfx/range/b2drange.hxx>
#include <basegfx/range/b2drectangle.hxx>
#include <basegfx/polygon/b2dlinegeometry.hxx>
#include <basegfx/polygon/b2dpolygon.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#include <basegfx/polygon/b2dpolypolygon.hxx>
#include <basegfx/polygon/b2dpolypolygontools.hxx>
#include <vcl/canvastools.hxx>
#include <implrenderer.hxx>
#include <emfpbrush.hxx>
#include <emfppath.hxx>
namespace cppcanvas
{
namespace internal
{
EMFPBrush::EMFPBrush()
: type(0)
, additionalFlags(0)
, wrapMode(0)
, areaX(0.0)
, areaY(0.0)
, areaWidth(0.0)
, areaHeight(0.0)
, hasTransformation(false)
, blendPoints(0)
, blendPositions(nullptr)
, blendFactors(nullptr)
, colorblendPoints(0)
, colorblendPositions(nullptr)
, colorblendColors(nullptr)
, surroundColorsNumber(0)
, surroundColors(nullptr)
, path(nullptr)
, hatchStyle(HatchStyleHorizontal)
{
}
EMFPBrush::~EMFPBrush()
{
if (blendPositions != nullptr) {
delete[] blendPositions;
blendPositions = nullptr;
}
if (colorblendPositions != nullptr) {
delete[] colorblendPositions;
colorblendPositions = nullptr;
}
if (colorblendColors != nullptr) {
delete[] colorblendColors;
colorblendColors = nullptr;
}
if (surroundColors != nullptr) {
delete[] surroundColors;
surroundColors = nullptr;
}
if (path) {
delete path;
path = nullptr;
}
}
void EMFPBrush::Read(SvStream& s, ImplRenderer& rR)
{
sal_uInt32 header;
s.ReadUInt32(header).ReadUInt32(type);
SAL_INFO("cppcanvas.emf", "EMF+\tbrush");
SAL_INFO("cppcanvas.emf", "EMF+\theader: 0x" << std::hex << header << " type: " << type << std::dec);
switch (type) {
case BrushTypeSolidColor:
{
sal_uInt32 color;
s.ReadUInt32(color);
solidColor = ::Color(0xff - (color >> 24), (color >> 16) & 0xff, (color >> 8) & 0xff, color & 0xff);
SAL_INFO("cppcanvas.emf", "EMF+\tsolid color: 0x" << std::hex << color << std::dec);
break;
}
case BrushTypeHatchFill:
{
sal_uInt32 style;
sal_uInt32 foregroundColor;
sal_uInt32 backgroundColor;
s.ReadUInt32(style);
s.ReadUInt32(foregroundColor);
s.ReadUInt32(backgroundColor);
hatchStyle = static_cast<EmfPlusHatchStyle>(style);
solidColor = ::Color(0xff - (foregroundColor >> 24), (foregroundColor >> 16) & 0xff, (foregroundColor >> 8) & 0xff, foregroundColor & 0xff);
secondColor = ::Color(0xff - (backgroundColor >> 24), (backgroundColor >> 16) & 0xff, (backgroundColor >> 8) & 0xff, backgroundColor & 0xff);
SAL_INFO("cppcanvas.emf", "EMF+\thatch style " << style << " foregroundcolor: 0x" << solidColor.AsRGBHexString() << " background 0x" << secondColor.AsRGBHexString());
break;
}
case BrushTypeTextureFill:
{
SAL_WARN("cppcanvas.emf", "EMF+\tTODO: implement BrushTypeTextureFill brush");
break;
}
case BrushTypePathGradient:
{
s.ReadUInt32(additionalFlags).ReadInt32(wrapMode);
SAL_INFO("cppcanvas.emf", "EMF+\tpath gradient, additional flags: 0x" << std::hex << additionalFlags << std::dec);
sal_uInt32 color;
s.ReadUInt32(color);
solidColor = ::Color(0xff - (color >> 24), (color >> 16) & 0xff, (color >> 8) & 0xff, color & 0xff);
SAL_INFO("cppcanvas.emf", "EMF+\tcenter color: 0x" << std::hex << color << std::dec);
s.ReadFloat(areaX).ReadFloat(areaY);
SAL_INFO("cppcanvas.emf", "EMF+\tcenter point: " << areaX << "," << areaY);
s.ReadInt32(surroundColorsNumber);
SAL_INFO("cppcanvas.emf", "EMF+\t number of surround colors: " << surroundColorsNumber);
if (surroundColorsNumber<0 || sal_uInt32(surroundColorsNumber)>SAL_MAX_INT32 / sizeof(::Color))
surroundColorsNumber = SAL_MAX_INT32 / sizeof(::Color);
surroundColors = new ::Color[surroundColorsNumber];
for (int i = 0; i < surroundColorsNumber; i++) {
s.ReadUInt32(color);
surroundColors[i] = ::Color(0xff - (color >> 24), (color >> 16) & 0xff, (color >> 8) & 0xff, color & 0xff);
if (i == 0)
secondColor = surroundColors[0];
SAL_INFO("cppcanvas.emf", "EMF+\tsurround color[" << i << "]: 0x" << std::hex << color << std::dec);
}
if (additionalFlags & 0x01) {
sal_Int32 pathLength;
s.ReadInt32(pathLength);
SAL_INFO("cppcanvas.emf", "EMF+\tpath length: " << pathLength);
sal_uInt64 const pos = s.Tell();
sal_uInt32 pathHeader;
sal_Int32 pathPoints, pathFlags;
s.ReadUInt32(pathHeader).ReadInt32(pathPoints).ReadInt32(pathFlags);
SAL_INFO("cppcanvas.emf", "EMF+\tpath (brush path gradient)");
SAL_INFO("cppcanvas.emf", "EMF+\theader: 0x" << std::hex << pathHeader << " points: " << std::dec << pathPoints << " additional flags: 0x" << std::hex << pathFlags << std::dec);
path = new EMFPPath(pathPoints);
path->Read(s, pathFlags, rR);
s.Seek(pos + pathLength);
const ::basegfx::B2DRectangle aBounds(::basegfx::tools::getRange(path->GetPolygon(rR, false)));
areaWidth = aBounds.getWidth();
areaHeight = aBounds.getHeight();
SAL_INFO("cppcanvas.emf", "EMF+\t polygon bounding box: " << aBounds.getMinX() << "," << aBounds.getMinY() << " " << aBounds.getWidth() << "x" << aBounds.getHeight());
}
else
{
sal_Int32 boundaryPointCount;
s.ReadInt32(boundaryPointCount);
sal_uInt64 const pos = s.Tell();
SAL_INFO("cppcanvas.emf", "EMF+\t use boundary, points: " << boundaryPointCount);
path = new EMFPPath(boundaryPointCount);
path->Read(s, 0x0, rR);
s.Seek(pos + 8 * boundaryPointCount);
const ::basegfx::B2DRectangle aBounds(::basegfx::tools::getRange(path->GetPolygon(rR, false)));
areaWidth = aBounds.getWidth();
areaHeight = aBounds.getHeight();
SAL_INFO("cppcanvas.emf", "EMF+\t polygon bounding box: " << aBounds.getMinX() << "," << aBounds.getMinY() << " " << aBounds.getWidth() << "x" << aBounds.getHeight());
}
if (additionalFlags & 0x02) {
SAL_INFO("cppcanvas.emf", "EMF+\tuse transformation");
ReadXForm(s, brush_transformation);
hasTransformation = true;
SAL_INFO("cppcanvas.emf",
"EMF+\tm11: " << brush_transformation.eM11 << " m12: " << brush_transformation.eM12 <<
"\nEMF+\tm21: " << brush_transformation.eM21 << " m22: " << brush_transformation.eM22 <<
"\nEMF+\tdx: " << brush_transformation.eDx << " dy: " << brush_transformation.eDy);
}
if (additionalFlags & 0x08) {
s.ReadInt32(blendPoints);
SAL_INFO("cppcanvas.emf", "EMF+\tuse blend, points: " << blendPoints);
if (blendPoints<0 || sal_uInt32(blendPoints)>SAL_MAX_INT32 / (2 * sizeof(float)))
blendPoints = SAL_MAX_INT32 / (2 * sizeof(float));
blendPositions = new float[2 * blendPoints];
blendFactors = blendPositions + blendPoints;
for (int i = 0; i < blendPoints; i++) {
s.ReadFloat(blendPositions[i]);
SAL_INFO("cppcanvas.emf", "EMF+\tposition[" << i << "]: " << blendPositions[i]);
}
for (int i = 0; i < blendPoints; i++) {
s.ReadFloat(blendFactors[i]);
SAL_INFO("cppcanvas.emf", "EMF+\tfactor[" << i << "]: " << blendFactors[i]);
}
}
if (additionalFlags & 0x04) {
s.ReadInt32(colorblendPoints);
SAL_INFO("cppcanvas.emf", "EMF+\tuse color blend, points: " << colorblendPoints);
if (colorblendPoints<0 || sal_uInt32(colorblendPoints)>SAL_MAX_INT32 / sizeof(float))
colorblendPoints = SAL_MAX_INT32 / sizeof(float);
if (sal_uInt32(colorblendPoints)>SAL_MAX_INT32 / sizeof(::Color))
colorblendPoints = SAL_MAX_INT32 / sizeof(::Color);
colorblendPositions = new float[colorblendPoints];
colorblendColors = new ::Color[colorblendPoints];
for (int i = 0; i < colorblendPoints; i++) {
s.ReadFloat(colorblendPositions[i]);
SAL_INFO("cppcanvas.emf", "EMF+\tposition[" << i << "]: " << colorblendPositions[i]);
}
for (int i = 0; i < colorblendPoints; i++) {
s.ReadUInt32(color);
colorblendColors[i] = ::Color(0xff - (color >> 24), (color >> 16) & 0xff, (color >> 8) & 0xff, color & 0xff);
SAL_INFO("cppcanvas.emf", "EMF+\tcolor[" << i << "]: 0x" << std::hex << color << std::dec);
}
}
break;
}
case BrushTypeLinearGradient:
{
s.ReadUInt32(additionalFlags).ReadInt32(wrapMode);
SAL_INFO("cppcanvas.emf", "EMF+\tlinear gradient, additional flags: 0x" << std::hex << additionalFlags << std::dec);
s.ReadFloat(areaX).ReadFloat(areaY).ReadFloat(areaWidth).ReadFloat(areaHeight);
SAL_INFO("cppcanvas.emf", "EMF+\tarea: " << areaX << "," << areaY << " - " << areaWidth << "x" << areaHeight);
sal_uInt32 color;
s.ReadUInt32(color);
solidColor = ::Color(0xff - (color >> 24), (color >> 16) & 0xff, (color >> 8) & 0xff, color & 0xff);
SAL_INFO("cppcanvas.emf", "EMF+\tfirst color: 0x" << std::hex << color << std::dec);
s.ReadUInt32(color);
secondColor = ::Color(0xff - (color >> 24), (color >> 16) & 0xff, (color >> 8) & 0xff, color & 0xff);
SAL_INFO("cppcanvas.emf", "EMF+\tsecond color: 0x" << std::hex << color << std::dec);
// repeated colors, unknown meaning, see http://www.aces.uiuc.edu/~jhtodd/Metafile/MetafileRecords/ObjectBrush.html
s.ReadUInt32(color);
s.ReadUInt32(color);
if (additionalFlags & 0x02) {
SAL_INFO("cppcanvas.emf", "EMF+\tuse transformation");
ReadXForm(s, brush_transformation);
hasTransformation = true;
SAL_INFO("cppcanvas.emf",
"EMF+\tm11: " << brush_transformation.eM11 << " m12: " << brush_transformation.eM12 <<
"\nEMF+\tm21: " << brush_transformation.eM21 << " m22: " << brush_transformation.eM22 <<
"\nEMF+\tdx: " << brush_transformation.eDx << " dy: " << brush_transformation.eDy);
}
if (additionalFlags & 0x08) {
s.ReadInt32(blendPoints);
SAL_INFO("cppcanvas.emf", "EMF+\tuse blend, points: " << blendPoints);
if (blendPoints<0 || sal_uInt32(blendPoints)>SAL_MAX_INT32 / (2 * sizeof(float)))
blendPoints = SAL_MAX_INT32 / (2 * sizeof(float));
blendPositions = new float[2 * blendPoints];
blendFactors = blendPositions + blendPoints;
for (int i = 0; i < blendPoints; i++) {
s.ReadFloat(blendPositions[i]);
SAL_INFO("cppcanvas.emf", "EMF+\tposition[" << i << "]: " << blendPositions[i]);
}
for (int i = 0; i < blendPoints; i++) {
s.ReadFloat(blendFactors[i]);
SAL_INFO("cppcanvas.emf", "EMF+\tfactor[" << i << "]: " << blendFactors[i]);
}
}
if (additionalFlags & 0x04) {
s.ReadInt32(colorblendPoints);
SAL_INFO("cppcanvas.emf", "EMF+\tuse color blend, points: " << colorblendPoints);
if (colorblendPoints<0 || sal_uInt32(colorblendPoints)>SAL_MAX_INT32 / sizeof(float))
colorblendPoints = SAL_MAX_INT32 / sizeof(float);
if (sal_uInt32(colorblendPoints)>SAL_MAX_INT32 / sizeof(::Color))
colorblendPoints = sal_uInt32(SAL_MAX_INT32) / sizeof(::Color);
colorblendPositions = new float[colorblendPoints];
colorblendColors = new ::Color[colorblendPoints];
for (int i = 0; i < colorblendPoints; i++) {
s.ReadFloat(colorblendPositions[i]);
SAL_INFO("cppcanvas.emf", "EMF+\tposition[" << i << "]: " << colorblendPositions[i]);
}
for (int i = 0; i < colorblendPoints; i++) {
s.ReadUInt32(color);
colorblendColors[i] = ::Color(0xff - (color >> 24), (color >> 16) & 0xff, (color >> 8) & 0xff, color & 0xff);
SAL_INFO("cppcanvas.emf", "EMF+\tcolor[" << i << "]: 0x" << std::hex << color << std::dec);
}
}
break;
}
default:
SAL_INFO("cppcanvas.emf", "EMF+\tunhandled brush type: " << std::hex << type << std::dec);
}
}
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */