| -rw-r--r-- | noncore/graphics/drawpad/drawpadcanvas.cpp | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/noncore/graphics/drawpad/drawpadcanvas.cpp b/noncore/graphics/drawpad/drawpadcanvas.cpp index 5d0c6e4..5b1aa7e 100644 --- a/noncore/graphics/drawpad/drawpadcanvas.cpp +++ b/noncore/graphics/drawpad/drawpadcanvas.cpp @@ -1,534 +1,557 @@ /*************************************************************************** * * * DrawPad - a drawing program for Opie Environment * * * * (C) 2002 by S. Prud'homme <prudhomme@laposte.net> * * * * This program is free software; you can redistribute it and/or modify * * it under the terms of the GNU General Public License as published by * * the Free Software Foundation; either version 2 of the License, or * * (at your option) any later version. * * * ***************************************************************************/ #include "drawpadcanvas.h" #include "drawpad.h" #include "page.h" #include "tool.h" #include <qpe/applnk.h> #include <qpe/filemanager.h> #include <qpe/mimetype.h> #include <qbuffer.h> #include <qimage.h> #include <qtextcodec.h> #include <qxml.h> class DrawPadCanvasXmlHandler: public QXmlDefaultHandler { public: DrawPadCanvasXmlHandler(); ~DrawPadCanvasXmlHandler(); QList<Page> pages(); bool startElement(const QString& namespaceURI, const QString& localName, const QString& qName, const QXmlAttributes& atts); bool endElement(const QString& namespaceURI, const QString& localName, const QString& qName); bool characters(const QString& ch); private: enum State { Unknown, InTitle, InDate, InData }; State m_state; QString m_title; QDateTime m_date; ulong m_dataLenght; QString m_dataFormat; QList<Page> m_pages; }; DrawPadCanvasXmlHandler::DrawPadCanvasXmlHandler() { m_state = Unknown; } DrawPadCanvasXmlHandler::~DrawPadCanvasXmlHandler() { } QList<Page> DrawPadCanvasXmlHandler::pages() { return m_pages; } bool DrawPadCanvasXmlHandler::startElement(const QString& namespaceURI, const QString& localName, const QString& qName, const QXmlAttributes& atts) { Q_CONST_UNUSED(namespaceURI) Q_CONST_UNUSED(localName) if (qName == "image") { m_title = QString(); m_date = QDateTime::currentDateTime(); } else if (qName == "title") { m_state = InTitle; } else if (qName == "date") { m_state = InDate; } else if (qName == "data") { m_state = InData; m_dataLenght = atts.value("length").toULong(); m_dataFormat = atts.value("format"); } return true; } bool DrawPadCanvasXmlHandler::endElement(const QString& namespaceURI, const QString& localName, const QString& qName) { Q_CONST_UNUSED(namespaceURI) Q_CONST_UNUSED(localName) if (qName == "title") { m_state = Unknown; } else if (qName == "date") { m_state = Unknown; } else if (qName == "data") { m_state = Unknown; } return true; } bool DrawPadCanvasXmlHandler::characters(const QString& ch) { if (m_state == InTitle) { m_title = ch; } else if (m_state == InDate) { m_date = QDateTime(QDate(1970, 1, 1)).addSecs(ch.toInt()); } else if (m_state == InData) { QByteArray byteArray(ch.length() / 2); for (int i = 0; i < (int)ch.length() / 2; i++) { char h = ch[2 * i].latin1(); char l = ch[2 * i + 1].latin1(); uchar r = 0; if (h <= '9') { r += h - '0'; } else { r += h - 'a' + 10; } r = r << 4; if (l <= '9') { r += l - '0'; } else { r += l - 'a' + 10; } byteArray[i] = r; } QImage image; image.loadFromData((const uchar*)byteArray.data(), m_dataLenght, m_dataFormat); Page* page = new Page(m_title, image.width(), image.height()); page->setLastModified(m_date); page->pixmap()->convertFromImage(image); m_pages.append(page); } return true; } DrawPadCanvas::DrawPadCanvas(DrawPad* drawPad, QWidget* parent, const char* name) : QScrollView(parent, name) { m_pDrawPad = drawPad; m_pages.setAutoDelete(true); viewport()->setBackgroundMode(QWidget::NoBackground); } DrawPadCanvas::~DrawPadCanvas() { } void DrawPadCanvas::load(QIODevice* ioDevice) { QTextStream textStream(ioDevice); textStream.setCodec(QTextCodec::codecForName("UTF-8")); QXmlInputSource xmlInputSource(textStream); QXmlSimpleReader xmlSimpleReader; DrawPadCanvasXmlHandler drawPadCanvasXmlHandler; xmlSimpleReader.setContentHandler(&drawPadCanvasXmlHandler); xmlSimpleReader.parse(xmlInputSource); - m_pages = drawPadCanvasXmlHandler.pages(); + /* + * we could have loaded something from setDocument already + * due the delayed loading we need to make sure we do + * not lose pages + */ + if ( !m_pages.isEmpty() ) { + QList<Page> pages = drawPadCanvasXmlHandler.pages(); + QListIterator<Page> it( pages ); + Page *p; + while ( ( p = it.current() ) ) { + ++it; + m_pages.append( p ); + } + }else + m_pages = drawPadCanvasXmlHandler.pages(); + + if (m_pages.isEmpty()) { m_pages.append(new Page("", clipper()->width()+(verticalScrollBar()->isVisible()?verticalScrollBar()->width():0), clipper()->height()+(horizontalScrollBar()->isVisible()?horizontalScrollBar()->height():0))); m_pages.current()->pixmap()->fill(Qt::white); } resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height()); viewport()->update(); emit pagesChanged(); } void DrawPadCanvas::initialPage() { + /* + * by setDocument we've set a page already so + * don't add an empty one. This comes due the delayed initialisation + */ + if (!m_pages.isEmpty() ) + return; + m_pages.append(new Page("", clipper()->width()+(verticalScrollBar()->isVisible()?verticalScrollBar()->width():0), clipper()->height()+(horizontalScrollBar()->isVisible()?horizontalScrollBar()->height():0))); //236, 232)); no more fixed sizes m_pages.current()->pixmap()->fill(Qt::white); resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height()); viewport()->update(); emit pagesChanged(); } void DrawPadCanvas::save(QIODevice* ioDevice) { QTextStream textStream(ioDevice); textStream.setCodec(QTextCodec::codecForName("UTF-8")); textStream << "<drawpad>" << endl; textStream << " <images>" << endl; QListIterator<Page> bufferIterator(m_pages); for (bufferIterator.toFirst(); bufferIterator.current() != 0; ++bufferIterator) { textStream << " <image>" << endl; textStream << " <title>" << bufferIterator.current()->title() << "</title>" << endl; int intDate = QDateTime(QDate(1970, 1, 1)).secsTo(bufferIterator.current()->lastModified()); textStream << " <date>" << intDate << "</date>" << endl; QImage image = bufferIterator.current()->pixmap()->convertToImage(); QByteArray byteArray; QBuffer buffer(byteArray); QImageIO imageIO(&buffer, "PNG"); buffer.open(IO_WriteOnly); imageIO.setImage(image); imageIO.write(); buffer.close(); textStream << " <data length=\"" << byteArray.size() << "\" format=\"PNG\">"; static const char hexchars[] = "0123456789abcdef"; for (int i = 0; i < (int)byteArray.size(); i++ ) { uchar s = (uchar)byteArray[i]; textStream << hexchars[s >> 4]; textStream << hexchars[s & 0x0f]; } textStream << "</data>" << endl; textStream << " </image>" << endl; } textStream << " </images>" << endl; textStream << "</drawpad>"; } void DrawPadCanvas::importPage(const QString& fileName) { Page* importedPage = new Page(); importedPage->pixmap()->load(fileName); m_pages.insert(m_pages.at() + 1, importedPage); resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height()); viewport()->update(); emit pagesChanged(); } void DrawPadCanvas::importPixmap( const QPixmap& pix ) { Page* importedPage = new Page(); (*importedPage->pixmap()) = pix; m_pages.insert(m_pages.at()+1, importedPage ); resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height() ); viewport()->update(); emit pagesChanged(); } void DrawPadCanvas::exportPage(uint fromPage, uint toPage, const QString& name,const QString& format) { if (fromPage == toPage) { DocLnk docLnk; MimeType mimeType(format); docLnk.setName(name); docLnk.setType(mimeType.id()); FileManager fileManager; QIODevice* ioDevice = fileManager.saveFile(docLnk); QImageIO imageIO(ioDevice, format); QImage image = m_pages.current()->pixmap()->convertToImage(); imageIO.setImage(image); imageIO.write(); delete ioDevice; } else { for (uint i = fromPage; i <= toPage; i++) { DocLnk docLnk; MimeType mimeType(format); docLnk.setName(name + QString::number(i)); docLnk.setType(mimeType.id()); FileManager fileManager; QIODevice* ioDevice = fileManager.saveFile(docLnk); QImageIO imageIO(ioDevice, format); QImage image = m_pages.at(i - 1)->pixmap()->convertToImage(); imageIO.setImage(image); imageIO.write(); delete ioDevice; } } } Page* DrawPadCanvas::currentPage() { return m_pages.current(); } QList<Page> DrawPadCanvas::pages() { return m_pages; } uint DrawPadCanvas::pagePosition() { return (m_pages.at() + 1); } uint DrawPadCanvas::pageCount() { return m_pages.count(); } void DrawPadCanvas::selectPage(Page* page) { m_pages.findRef(page); resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height()); viewport()->update(); emit pagesChanged(); } void DrawPadCanvas::backupPage() { m_pages.current()->backup(); emit pagesChanged(); } void DrawPadCanvas::selectPage(uint pagePosition) { m_pages.at(pagePosition - 1); resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height()); viewport()->update(); emit pagesChanged(); } void DrawPadCanvas::deleteAll() { m_pages.clear(); m_pages.append(new Page("", clipper()->width()+(verticalScrollBar()->isVisible()?verticalScrollBar()->width():0), clipper()->height()+(horizontalScrollBar()->isVisible()?horizontalScrollBar()->height():0))); m_pages.current()->pixmap()->fill(Qt::white); resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height()); viewport()->update(); emit pagesChanged(); } void DrawPadCanvas::newPage(QString title, uint width, uint height, const QColor& color) { m_pages.insert(m_pages.at() + 1, new Page(title, width, height)); m_pages.current()->pixmap()->fill(color); resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height()); viewport()->update(); emit pagesChanged(); } void DrawPadCanvas::clearPage() { m_pages.current()->pixmap()->fill(Qt::white); resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height()); viewport()->update(); } void DrawPadCanvas::deletePage() { m_pages.remove(m_pages.current()); if (m_pages.isEmpty()) { m_pages.append(new Page("", clipper()->width()+(verticalScrollBar()->isVisible()?verticalScrollBar()->width():0), clipper()->height()+(horizontalScrollBar()->isVisible()?horizontalScrollBar()->height():0))); m_pages.current()->pixmap()->fill(Qt::white); } resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height()); viewport()->update(); emit pagesChanged(); } void DrawPadCanvas::movePageUp() { int index = m_pages.at(); Page* page = m_pages.take(); m_pages.insert(index - 1, page); emit pagesChanged(); } void DrawPadCanvas::movePageDown() { int index = m_pages.at(); Page* page = m_pages.take(); m_pages.insert(index + 1, page); emit pagesChanged(); } bool DrawPadCanvas::goPreviousPageEnabled() { return (m_pages.current() != m_pages.getFirst()); } bool DrawPadCanvas::goNextPageEnabled() { return (m_pages.current() != m_pages.getLast()); } void DrawPadCanvas::undo() { m_pages.current()->undo(); viewport()->update(); emit pagesChanged(); } void DrawPadCanvas::redo() { m_pages.current()->redo(); viewport()->update(); emit pagesChanged(); } void DrawPadCanvas::goFirstPage() { m_pages.first(); resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height()); viewport()->update(); emit pagesChanged(); } void DrawPadCanvas::goPreviousPage() { m_pages.prev(); resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height()); viewport()->update(); emit pagesChanged(); } void DrawPadCanvas::goNextPage() { m_pages.next(); resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height()); viewport()->update(); emit pagesChanged(); } void DrawPadCanvas::goLastPage() { m_pages.last(); resizeContents(m_pages.current()->pixmap()->width(), m_pages.current()->pixmap()->height()); viewport()->update(); emit pagesChanged(); } void DrawPadCanvas::contentsMousePressEvent(QMouseEvent* e) { m_pDrawPad->tool()->mousePressEvent(e); } void DrawPadCanvas::contentsMouseReleaseEvent(QMouseEvent* e) { m_pDrawPad->tool()->mouseReleaseEvent(e); } void DrawPadCanvas::contentsMouseMoveEvent(QMouseEvent* e) { m_pDrawPad->tool()->mouseMoveEvent(e); } void DrawPadCanvas::drawContents(QPainter* p, int cx, int cy, int cw, int ch) { Page* currentPage = m_pages.current(); if ( !currentPage ) return; // no page yet --> initialization not finished (Mickeyl) QRect clipRect(cx, cy, cw, ch); QRect pixmapRect(0, 0, currentPage->pixmap()->width(), m_pages.current()->pixmap()->height()); QRect drawRect = pixmapRect.intersect(clipRect); p->drawPixmap(drawRect.topLeft(), *(currentPage->pixmap()), drawRect); if (drawRect.right() < clipRect.right()) { p->fillRect(drawRect.right() + 1, cy, cw - drawRect.width(), ch, colorGroup().dark()); } if (drawRect.bottom() < clipRect.bottom()) { p->fillRect(cx, drawRect.bottom() + 1, cw, ch - drawRect.height(), colorGroup().dark()); } } |