r14088 by fschmid - Added the missing files for the wpg image loader.
scribus-commit
scribus-commit at lists.scribus.net
Sun Oct 4 14:55:12 CEST 2009
Revision: 14088
Author: fschmid
Date: 2009-10-04T12:53:35.201445Z
Commit message: Added the missing files for the wpg image loader.
Changeset:
A /trunk/Scribus/scribus/scimgdataloader_wpg.cpp
A /trunk/Scribus/scribus/scimgdataloader_wpg.h
Diffs:
Index: scribus/scimgdataloader_wpg.cpp
===================================================================
--- scribus/scimgdataloader_wpg.cpp (revision 0)
+++ scribus/scimgdataloader_wpg.cpp (revision 14088)
@@ -0,0 +1,346 @@
+/*
+For general Scribus (>=1.3.2) copyright and licensing information please refer
+to the COPYING file provided with the program. Following this notice may exist
+a copyright and/or license notice that predates the release of Scribus 1.3.2
+for which a new license (GPL+exception) is in place.
+*/
+
+#include <QFile>
+#include <QList>
+#include <QDebug>
+#include <QVector>
+
+#include <cmath>
+#include <cstdlib>
+
+#include <stdio.h>
+#include "scimgdataloader_wpg.h"
+#include "plugins/wpgimplugin/wpg/WPGStreamImplementation.h"
+
+ScrPainterIm::ScrPainterIm(): libwpg::WPGPaintInterface()
+{
+}
+
+void ScrPainterIm::startGraphics(double width, double height)
+{
+ currentPen = QPen(Qt::black, 1);
+ currentBrush = Qt::black;
+ Coords = QPainterPath();
+ *image = QImage(qRound(width * 72), qRound(height * 72), QImage::Format_ARGB32);
+ image->fill(qRgba(255, 255, 255, 255));
+ imagePainter.begin(image);
+ imagePainter.setRenderHint(QPainter::Antialiasing , true);
+ fillrule = true;
+ gradientAngle = 0.0;
+ isGradient = false;
+ fillSet = false;
+ strokeSet = false;
+ currentGradient = QLinearGradient();
+// qDebug() << "Start Graphics" << qRound(width * 72) << qRound(height * 72);
+}
+
+void ScrPainterIm::endGraphics()
+{
+ imagePainter.end();
+// qDebug() << "End Graphics";
+}
+
+void ScrPainterIm::startLayer(unsigned int id)
+{
+}
+
+void ScrPainterIm::endLayer(unsigned int id)
+{
+}
+
+void ScrPainterIm::setPen(const libwpg::WPGPen& pen)
+{
+ QVector<double> dashArray;
+ dashArray.clear();
+ Qt::PenJoinStyle lineJoin;
+ Qt::PenCapStyle lineEnd;
+ double LineW = 72 * pen.width;
+ QColor foreColor = QColor(pen.foreColor.red, pen.foreColor.green, pen.foreColor.blue, 255 - pen.foreColor.alpha);
+ if(!pen.solid)
+ {
+ dashArray.clear();
+ for(unsigned i = 0; i < pen.dashArray.count(); i++)
+ {
+ dashArray.append(pen.dashArray.at(i)*LineW);
+ }
+ }
+ switch (pen.joinstyle)
+ {
+ case 1:
+ lineJoin = Qt::BevelJoin;
+ break;
+ case 2:
+ lineJoin = Qt::MiterJoin;
+ break;
+ case 3:
+ lineJoin = Qt::RoundJoin;
+ break;
+ default:
+ lineJoin = Qt::MiterJoin;
+ break;
+ }
+ switch (pen.capstyle)
+ {
+ case 0:
+ lineEnd = Qt::FlatCap;
+ break;
+ case 1:
+ lineEnd = Qt::RoundCap;
+ break;
+ case 2:
+ lineEnd = Qt::SquareCap;
+ break;
+ default:
+ lineEnd = Qt::FlatCap;
+ break;
+ }
+ if(!pen.solid)
+ {
+ currentPen = QPen(foreColor, LineW, Qt::SolidLine, lineEnd, lineJoin);
+ currentPen.setDashPattern(dashArray);
+ }
+ else
+ currentPen = QPen(foreColor, LineW, Qt::SolidLine, lineEnd, lineJoin);
+ strokeSet = true;
+// qDebug() << "Set Pen" << pen.foreColor.red << pen.foreColor.green << pen.foreColor.blue << pen.foreColor.alpha;
+}
+
+void ScrPainterIm::setBrush(const libwpg::WPGBrush& brush)
+{
+ isGradient = false;
+ if(brush.style == libwpg::WPGBrush::Solid)
+ {
+ currentBrush = QColor(brush.foreColor.red, brush.foreColor.green, brush.foreColor.blue, 255 - brush.foreColor.alpha);
+ }
+ else if (brush.style == libwpg::WPGBrush::Gradient)
+ {
+ gradientAngle = brush.gradient.angle();
+ isGradient = true;
+ currentGradient = QLinearGradient();
+ for(unsigned c = 0; c < brush.gradient.count(); c++)
+ {
+ QColor stopC = QColor(brush.gradient.stopColor(c).red, brush.gradient.stopColor(c).green, brush.gradient.stopColor(c).blue);
+ currentGradient.setColorAt(fabs(brush.gradient.stopOffset(c)), stopC);
+ }
+ }
+ else if (brush.style == libwpg::WPGBrush::NoBrush)
+ currentBrush = QColor(Qt::NoBrush);
+ fillSet = true;
+}
+
+void ScrPainterIm::setFillRule(FillRule rule)
+{
+ if(rule == libwpg::WPGPaintInterface::WindingFill)
+ fillrule = false;
+ else
+ fillrule = true;
+// qDebug() << "Fill Rule " << fillrule;
+}
+
+void ScrPainterIm::drawRectangle(const libwpg::WPGRect& rect, double rx, double ry)
+{
+ imagePainter.setBrush(currentBrush);
+ imagePainter.setPen(currentPen);
+ QRectF rr = QRectF(rect.x1 * 72, rect.y1 * 72, rect.width() * 72, rect.height() * 72);
+ if (isGradient)
+ {
+ QTransform m1;
+ m1.rotate(-gradientAngle);
+ currentGradient.setStart(rr.x(), rr.y());
+ QPointF target = m1.map(QPointF(rr.x(), rr.bottom()));
+ currentGradient.setFinalStop(target);
+ imagePainter.setBrush(currentGradient);
+ }
+ if ((rx > 0) || (ry > 0))
+ imagePainter.drawRoundedRect(rr, 72 * rx, 72 * ry);
+ else
+ imagePainter.drawRect(rr);
+// qDebug() << "Draw Rect " << rr;
+}
+
+void ScrPainterIm::drawEllipse(const libwpg::WPGPoint& center, double rx, double ry)
+{
+ imagePainter.setBrush(currentBrush);
+ imagePainter.setPen(currentPen);
+ QRectF rr = QRectF(0, 0, rx * 144.0, ry * 144.0);
+ if (isGradient)
+ {
+ QTransform m1;
+ m1.rotate(-gradientAngle);
+ currentGradient.setStart(rr.x(), rr.y());
+ QPointF target = m1.map(QPointF(rr.x(), rr.bottom()));
+ currentGradient.setFinalStop(target);
+ imagePainter.setBrush(currentGradient);
+ }
+ rr.translate(72*(center.x - rx), 72*(center.y - ry));
+ imagePainter.drawEllipse(rr);
+// qDebug() << "Draw Ellipse" << rr;
+}
+
+void ScrPainterIm::drawPolygon(const libwpg::WPGPointArray& vertices, bool closed)
+{
+ if(vertices.count() < 2)
+ return;
+ imagePainter.setBrush(currentBrush);
+ imagePainter.setPen(currentPen);
+ Coords = QPainterPath();
+ Coords.moveTo(72 * vertices[0].x, 72 * vertices[0].y);
+ for(unsigned i = 1; i < vertices.count(); i++)
+ {
+ Coords.lineTo(72 * vertices[i].x, 72 * vertices[i].y);
+ }
+ if (isGradient)
+ {
+ QRectF rr = Coords.boundingRect();
+ QTransform m1;
+ m1.rotate(-gradientAngle);
+ currentGradient.setStart(rr.x(), rr.y());
+ QPointF target = m1.map(QPointF(rr.x(), rr.bottom()));
+ currentGradient.setFinalStop(target);
+ imagePainter.setBrush(currentGradient);
+ }
+ if (!closed)
+ imagePainter.setBrush(Qt::NoBrush);
+ else
+ Coords.closeSubpath();
+ imagePainter.drawPath(Coords);
+// qDebug() << "Draw Polygon";
+}
+
+void ScrPainterIm::drawPath(const libwpg::WPGPath& path)
+{
+ Coords = QPainterPath();
+ for(unsigned i = 0; i < path.count(); i++)
+ {
+ libwpg::WPGPathElement element = path.element(i);
+ libwpg::WPGPoint point = element.point;
+ switch(element.type)
+ {
+ case libwpg::WPGPathElement::MoveToElement:
+ Coords.moveTo(72 * point.x, 72 * point.y);
+ break;
+ case libwpg::WPGPathElement::LineToElement:
+ Coords.lineTo(72 * point.x, 72 * point.y);
+ break;
+ case libwpg::WPGPathElement::CurveToElement:
+ Coords.cubicTo(72*element.extra1.x, 72*element.extra1.y, 72*element.extra2.x, 72*element.extra2.y, 72 * point.x, 72 * point.y);
+ break;
+ default:
+ break;
+ }
+ }
+ if (!path.filled)
+ imagePainter.setBrush(Qt::NoBrush);
+ else
+ {
+ if (isGradient)
+ {
+ QRectF rr = Coords.boundingRect();
+ QTransform m1;
+ m1.rotate(-gradientAngle);
+ currentGradient.setStart(rr.x(), rr.y());
+ QPointF target = m1.map(QPointF(rr.x(), rr.bottom()));
+ currentGradient.setFinalStop(target);
+ imagePainter.setBrush(currentGradient);
+ }
+ else
+ imagePainter.setBrush(currentBrush);
+ }
+ if (!path.framed)
+ imagePainter.setPen(Qt::NoPen);
+ else
+ imagePainter.setPen(currentPen);
+ if(path.closed)
+ Coords.closeSubpath();
+ imagePainter.drawPath(Coords);
+// qDebug() << "Draw Path" << currentPen << currentBrush;
+}
+
+void ScrPainterIm::drawBitmap(const libwpg::WPGBitmap& bitmap, double hres, double vres)
+{
+ QImage img = QImage(bitmap.width(), bitmap.height(), QImage::Format_RGB32);
+ for(int x = 0; x < bitmap.width(); x++)
+ {
+ for(int y = 0; y < bitmap.height(); y++)
+ {
+ libwpg::WPGColor color = bitmap.pixel(x, y);
+ img.setPixel(x, y, qRgb(color.red, color.green, color.blue));
+ }
+ }
+ double w = (bitmap.rect.x2 - bitmap.rect.x1) * 72.0;
+ double h = (bitmap.rect.y2 - bitmap.rect.y1) * 72.0;
+ imagePainter.drawImage(QRectF(bitmap.rect.x1 * 72, bitmap.rect.y1 * 72, w, h), img);
+// qDebug() << "Draw Bitmap";
+}
+
+void ScrPainterIm::drawImageObject(const libwpg::WPGBinaryData& /*binaryData*/)
+{
+// qDebug() << "drawBinaryData";
+}
+
+
+ScImgDataLoader_WPG::ScImgDataLoader_WPG(void) : ScImgDataLoader()
+{
+ initSupportedFormatList();
+}
+
+void ScImgDataLoader_WPG::initSupportedFormatList(void)
+{
+ m_supportedFormats.clear();
+ m_supportedFormats.append( "wpg" );
+}
+
+bool ScImgDataLoader_WPG::preloadAlphaChannel(const QString& fn, int /*page*/, int res, bool& hasAlpha)
+{
+ initialize();
+ hasAlpha = false;
+ return true;
+}
+
+void ScImgDataLoader_WPG::loadEmbeddedProfile(const QString& fn, int /*page*/)
+{
+ m_embeddedProfile.resize(0);
+ m_profileComponents = 0;
+}
+
+bool ScImgDataLoader_WPG::loadPicture(const QString& fn, int /*page*/, int /*res*/, bool /*thumbnail*/)
+{
+ QFile file(fn);
+ if ( !file.exists() )
+ {
+ qDebug() << "File " << QFile::encodeName(fn).data() << " does not exist" << endl;
+ return false;
+ }
+ if ( !file.open( QIODevice::ReadOnly ) )
+ {
+ qDebug() << "Cannot open file " << QFile::encodeName(fn).data() << endl;
+ return false;
+ }
+ QByteArray ba = file.readAll();
+ file.close();
+ initialize();
+
+ libwpg::WPGMemoryStream input(ba.constData(), ba.size());
+ if (!libwpg::WPGraphics::isSupported(&input))
+ {
+ fprintf(stderr, "ERROR: Unsupported file format (unsupported version) or file is encrypted!\n");
+ return false;
+ }
+ ScrPainterIm painter;
+ m_image = QImage();
+ painter.image = &m_image;
+ libwpg::WPGraphics::parse(&input, &painter);
+ m_imageInfoRecord.type = ImageTypeOther;
+ m_imageInfoRecord.exifDataValid = false;
+ m_imageInfoRecord.xres = 72;
+ m_imageInfoRecord.yres = 72;
+ m_imageInfoRecord.BBoxX = 0;
+ m_imageInfoRecord.colorspace = ColorSpaceRGB;
+ m_imageInfoRecord.BBoxH = m_image.height();
+ return true;
+}
Index: scribus/scimgdataloader_wpg.h
===================================================================
--- scribus/scimgdataloader_wpg.h (revision 0)
+++ scribus/scimgdataloader_wpg.h (revision 14088)
@@ -0,0 +1,70 @@
+/*
+For general Scribus (>=1.3.2) copyright and licensing information please refer
+to the COPYING file provided with the program. Following this notice may exist
+a copyright and/or license notice that predates the release of Scribus 1.3.2
+for which a new license (GPL+exception) is in place.
+*/
+#ifndef SCIMGDATALOADER_WPG_H
+#define SCIMGDATALOADER_WPG_H
+
+#include "scimgdataloader.h"
+
+#include <QtGlobal>
+#include <QObject>
+#include <QString>
+#include <QLinearGradient>
+
+#include <QList>
+#include <QTransform>
+#include <QMultiMap>
+#include <QPainter>
+#include <QPainterPath>
+#include "plugins/wpgimplugin/wpg/libwpg.h"
+
+
+class ScrPainterIm : public libwpg::WPGPaintInterface
+{
+public:
+ ScrPainterIm();
+
+ void startGraphics(double imageWidth, double imageHeight);
+ void endGraphics();
+ void startLayer(unsigned int id);
+ void endLayer(unsigned int id);
+ void setPen(const libwpg::WPGPen& pen);
+ void setBrush(const libwpg::WPGBrush& brush);
+ void setFillRule(FillRule rule);
+ void drawRectangle(const libwpg::WPGRect& rect, double rx, double ry);
+ void drawEllipse(const libwpg::WPGPoint& center, double rx, double ry);
+ void drawPolygon(const libwpg::WPGPointArray& vertices, bool closed);
+ void drawPath(const libwpg::WPGPath& path);
+ void drawBitmap(const libwpg::WPGBitmap& bitmap, double hres, double vres);
+ void drawImageObject(const libwpg::WPGBinaryData& binaryData);
+
+ QPainterPath Coords;
+ QPainter imagePainter;
+ QPen currentPen;
+ QBrush currentBrush;
+ bool fillrule;
+ double gradientAngle;
+ bool isGradient;
+ bool fillSet;
+ bool strokeSet;
+ QLinearGradient currentGradient;
+ QImage *image;
+};
+
+class ScImgDataLoader_WPG : public ScImgDataLoader
+{
+protected:
+
+ void initSupportedFormatList();
+
+public:
+ ScImgDataLoader_WPG(void);
+
+ virtual bool preloadAlphaChannel(const QString& fn, int page, int res, bool& hasAlpha);
+ virtual void loadEmbeddedProfile(const QString& fn, int page = 0);
+ virtual bool loadPicture(const QString& fn, int page, int res, bool thumbnail);
+};
+#endif
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