diff options
Diffstat (limited to 'src-qt5/desktop-utils/lumina-pdf/graphicsitems.h')
| -rw-r--r-- | src-qt5/desktop-utils/lumina-pdf/graphicsitems.h | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/src-qt5/desktop-utils/lumina-pdf/graphicsitems.h b/src-qt5/desktop-utils/lumina-pdf/graphicsitems.h new file mode 100644 index 00000000..7a6fb66f --- /dev/null +++ b/src-qt5/desktop-utils/lumina-pdf/graphicsitems.h @@ -0,0 +1,190 @@ +#ifndef LUMINA_PDF_GRAPHICSITEMS_H +#define LUMINA_PDF_GRAPHICSITEMS_H + +#include <QGraphicsItem> +#include <QPainter> +#include <QStyleOption> +#include <QTextDocument> + +class InkItem : public QGraphicsItem { +public: + InkItem(QGraphicsItem *parent, Annotation *_annot) + : QGraphicsItem(parent), pointData(_annot->getInkList()), + inkColor(_annot->getColor()), annot(_annot) { + setCacheMode(DeviceCoordinateCache); + bbox = annot->getLoc(); + } + + QRectF boundingRect() const Q_DECL_OVERRIDE { return bbox; } + + void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, + QWidget *widget) Q_DECL_OVERRIDE { + Q_UNUSED(widget); + painter->setClipRect(option->exposedRect); + QPen inkPen = QPen(inkColor); + painter->setPen(inkPen); + foreach (QVector<QPointF> pointList, pointData) { + painter->drawLines(pointList); + } + } + +private: + QRectF bbox; + QVector<QVector<QPointF>> pointData; + QColor inkColor; + Annotation *annot; +}; + +class PopupItem : public QGraphicsItem { +public: + PopupItem(QGraphicsItem *parent, Annotation *_annot) + : QGraphicsItem(parent), author(_annot->getAuthor()), + text(_annot->getText()) { + QRectF loc = _annot->getLoc(); + setCacheMode(DeviceCoordinateCache); + QString allText = "Author: " + author + "\n\n" + text; + QTextDocument document; + document.setDefaultFont(QFont("Helvitica", 10, QFont::Normal)); + document.setPageSize(QSize(120, 120)); + document.setHtml(allText); + loc.moveTopLeft( + QPointF(loc.center().x(), loc.center().y() + loc.height() / 2)); + loc.setSize(document.size() + QSize(10, 10)); + bbox = loc; + } + + QRectF boundingRect() const Q_DECL_OVERRIDE { return bbox; } + + void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, + QWidget *widget) Q_DECL_OVERRIDE { + Q_UNUSED(widget); + QString allText = "Author: " + author + "\n\n" + text; + painter->setClipRect(option->exposedRect); + painter->setFont(QFont("Helvitica", 10, QFont::Normal)); + painter->setBrush(QBrush(QColor(255, 255, 177, 255))); + painter->drawRect(bbox); + painter->setPen(QPen(QColor("Black"))); + painter->drawText(bbox, Qt::AlignLeft | Qt::TextWordWrap, allText); + } + +private: + QRectF bbox; + QString author; + QString text; +}; + +class AnnotZone : public QGraphicsItem { +public: + AnnotZone(QGraphicsItem *parent, Annotation *_annot, PopupItem *_annotItem) + : QGraphicsItem(parent), bbox(_annot->getLoc()), annot(_annotItem) { + _hasText = !_annot->getText().isEmpty(); + _hasAuthor = !_annot->getAuthor().isEmpty(); + } + + QRectF boundingRect() const Q_DECL_OVERRIDE { return bbox; } + PopupItem *annotation() const { return annot; } + bool hasText() const { return _hasText; } + bool hasAuthor() const { return _hasAuthor; } + void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, + QWidget *widget) Q_DECL_OVERRIDE { + Q_UNUSED(widget); + Q_UNUSED(painter); + Q_UNUSED(option); + } + +private: + QRectF bbox; + PopupItem *annot; + bool _hasText; + bool _hasAuthor; +}; + +class LinkItem : public QGraphicsItem { +public: + LinkItem(QGraphicsItem *parent, TextData *_data) + : QGraphicsItem(parent), bbox(_data->loc()), data(_data) { + setCacheMode(DeviceCoordinateCache); + setAcceptHoverEvents(true); + } + + QRectF boundingRect() const Q_DECL_OVERRIDE { return bbox; } + + inline TextData *getData() const { return data; } + + void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, + QWidget *widget) Q_DECL_OVERRIDE { + Q_UNUSED(widget); + painter->setClipRect(option->exposedRect); + painter->setBrush(QBrush(QColor(255, 255, 177, 100))); + painter->setPen(QPen(QColor(255, 255, 100, 125))); + painter->drawRect(bbox); + } + +private: + QRectF bbox; + TextData *data; +}; + +class PageItem : public QGraphicsItem { +public: + PageItem(int _pageNum, QImage _pagePicture, QSize _paperSize, + Renderer *_backend) + : pageNum(_pageNum), pagePicture(_pagePicture), paperSize(_paperSize), + BACKEND(_backend) { + brect = QRectF(QPointF(-25, -25), QSizeF(paperSize) + QSizeF(50, 50)); + setCacheMode(DeviceCoordinateCache); + setAcceptHoverEvents(true); + } + + QRectF boundingRect() const Q_DECL_OVERRIDE { return brect; } + + inline int pageNumber() const { return pageNum; } + + void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, + QWidget *widget) Q_DECL_OVERRIDE { + Q_UNUSED(widget); + // Ensure all the antialiasing/smoothing options are turned on + painter->setRenderHint(QPainter::Antialiasing); + painter->setRenderHint(QPainter::TextAntialiasing); + painter->setRenderHint(QPainter::SmoothPixmapTransform); + + QRectF paperRect(0, 0, paperSize.width(), paperSize.height()); + // Draw shadow + painter->setClipRect(option->exposedRect); + qreal shWidth = paperRect.width() / 100; + QRectF rshadow(paperRect.topRight() + QPointF(0, shWidth), + paperRect.bottomRight() + QPointF(shWidth, 0)); + QLinearGradient rgrad(rshadow.topLeft(), rshadow.topRight()); + rgrad.setColorAt(0.0, QColor(0, 0, 0, 255)); + rgrad.setColorAt(1.0, QColor(0, 0, 0, 0)); + painter->fillRect(rshadow, QBrush(rgrad)); + QRectF bshadow(paperRect.bottomLeft() + QPointF(shWidth, 0), + paperRect.bottomRight() + QPointF(0, shWidth)); + QLinearGradient bgrad(bshadow.topLeft(), bshadow.bottomLeft()); + bgrad.setColorAt(0.0, QColor(0, 0, 0, 255)); + bgrad.setColorAt(1.0, QColor(0, 0, 0, 0)); + painter->fillRect(bshadow, QBrush(bgrad)); + QRectF cshadow(paperRect.bottomRight(), + paperRect.bottomRight() + QPointF(shWidth, shWidth)); + QRadialGradient cgrad(cshadow.topLeft(), shWidth, cshadow.topLeft()); + cgrad.setColorAt(0.0, QColor(0, 0, 0, 255)); + cgrad.setColorAt(1.0, QColor(0, 0, 0, 0)); + painter->fillRect(cshadow, QBrush(cgrad)); + painter->setClipRect(paperRect & option->exposedRect); + painter->fillRect(paperRect, Qt::white); + painter->drawImage(QPoint(0, 0), pagePicture); + for (int k = 0; k < BACKEND->annotSize(pageNum - 1); k++) { + Annotation *annot = BACKEND->annotList(pageNum - 1, k); + painter->drawImage(annot->getLoc(), annot->renderImage()); + } + } + +private: + int pageNum; + QImage pagePicture; + QSize paperSize; + QRectF brect; + Renderer *BACKEND; +}; + +#endif // LUMINA_PDF_GRAPHICSITEMS_H |