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/*
* This file is part of the KDE project
*
* SPDX-FileCopyrightText: 2013 Shantanu Tushar <shantanu@kde.org>
* SPDX-FileCopyrightText: 2013 Arjen Hiemstra <ahiemstra@heimr.nl>
*
* SPDX-License-Identifier: LGPL-2.0-or-later
*
*/
#include "CQSpreadsheetCanvas.h"
#include <QStyleOptionGraphicsItem>
#include "CQCanvasController.h"
#include <KActionCollection>
#include <KoCanvasBase.h>
#include <KoFindText.h>
#include <KoPart.h>
#include <KoShape.h>
#include <KoToolManager.h>
#include <KoZoomController.h>
#include <KoZoomHandler.h>
#include <QGraphicsWidget>
#include <QTextFrame>
#include <QTextLayout>
#include <sheets/Doc.h>
#include <sheets/Map.h>
#include <sheets/Sheet.h>
#include <sheets/part/CanvasItem.h>
#include <sheets/part/Doc.h>
class CQSpreadsheetCanvas::Private
{
public:
Private()
: canvas(0)
, document(0)
, currentSheet(0)
{
}
Calligra::Sheets::CanvasItem *canvas;
Calligra::Sheets::Doc *document;
int currentSheet;
QObjectList linkTargets;
void updateLinkTargets()
{
qDeleteAll(linkTargets);
linkTargets.clear();
if (!canvas) {
return;
}
foreach (const KoShape *shape, canvas->activeSheet()->shapes()) {
if (!shape->hyperLink().isEmpty()) {
QObject *obj = new QObject(canvas);
obj->setProperty("linkRect", shape->boundingRect());
obj->setProperty("linkTarget", QUrl(shape->hyperLink()));
linkTargets.append(obj);
}
}
QList<QTextDocument *> texts;
KoFindText::findTextInShapes(canvas->activeSheet()->shapes(), texts);
foreach (QTextDocument *text, texts) {
QTextBlock block = text->rootFrame()->firstCursorPosition().block();
for (; block.isValid(); block = block.next()) {
block.begin();
QTextBlock::iterator it;
for (it = block.begin(); !(it.atEnd()); ++it) {
QTextFragment fragment = it.fragment();
if (fragment.isValid()) {
QTextCharFormat format = fragment.charFormat();
if (format.isAnchor()) {
// This is an anchor, store target and position...
QObject *obj = new QObject(canvas);
QRectF rect = getFragmentPosition(block, fragment);
obj->setProperty("linkRect", canvas->viewConverter()->documentToView(rect));
obj->setProperty("linkTarget", QUrl(format.anchorHref()));
linkTargets.append(obj);
}
}
}
}
}
}
QRectF getFragmentPosition(const QTextBlock &block, const QTextFragment &fragment)
{
// TODO this only produces a position for the first part, if the link spans more than one line...
// Need to sort that somehow, unfortunately probably by slapping this code into the above function.
// For now leave it like this, more important things are needed.
QTextLayout *layout = block.layout();
QTextLine line = layout->lineForTextPosition(fragment.position() - block.position());
if (!line.isValid()) {
// fragment has no valid position and consequently no line...
return QRectF();
}
qreal top = line.position().y();
qreal bottom = line.position().y() + line.height();
qreal left = line.cursorToX(fragment.position() - block.position());
qreal right = line.cursorToX((fragment.position() - block.position()) + fragment.length());
QRectF fragmentPosition(QPointF(top, left), QPointF(bottom, right));
return fragmentPosition.adjusted(layout->position().x(), layout->position().y(), 0, 0);
}
};
CQSpreadsheetCanvas::CQSpreadsheetCanvas(QQuickItem *parent)
: CQCanvasBase(parent)
, d(new Private)
{
}
CQSpreadsheetCanvas::~CQSpreadsheetCanvas()
{
delete d;
}
int CQSpreadsheetCanvas::currentSheet() const
{
return d->currentSheet;
}
Calligra::Sheets::Map *CQSpreadsheetCanvas::documentMap() const
{
return d->document->map();
}
QObjectList CQSpreadsheetCanvas::linkTargets() const
{
return d->linkTargets;
}
void CQSpreadsheetCanvas::setCurrentSheet(int sheet)
{
sheet = qBound(0, sheet, d->document->map()->count() - 1);
if (sheet != d->currentSheet) {
d->currentSheet = sheet;
d->canvas->setActiveSheet(d->document->map()->sheet(d->currentSheet));
Q_EMIT currentSheetChanged();
d->updateLinkTargets();
Q_EMIT linkTargetsChanged();
}
}
void CQSpreadsheetCanvas::render(QPainter *painter, const QRectF &target)
{
QStyleOptionGraphicsItem option;
option.exposedRect = target;
option.rect = target.toAlignedRect();
d->canvas->canvasItem()->paint(painter, &option);
}
void CQSpreadsheetCanvas::openFile(const QString &uri)
{
KService::Ptr service = KService::serviceByDesktopName("sheetspart");
if (service.isNull()) {
qWarning("Unable to load Sheets plugin, aborting!");
return;
}
KoPart *part = service->createInstance<KoPart>();
d->document = static_cast<Calligra::Sheets::Doc *>(part->document());
d->document->setAutoSave(0);
d->document->setCheckAutoSaveFile(false);
d->document->openUrl(QUrl(uri));
d->canvas = dynamic_cast<Calligra::Sheets::CanvasItem *>(part->canvasItem(part->document()));
createAndSetCanvasControllerOn(d->canvas);
createAndSetZoomController(d->canvas);
d->canvas->setParentItem(this);
d->canvas->installEventFilter(this);
d->canvas->setVisible(true);
d->canvas->setGeometry(x(), y(), width(), height());
d->updateLinkTargets();
Q_EMIT linkTargetsChanged();
Calligra::Sheets::Sheet *sheet = d->document->map()->sheet(0);
if (sheet) {
updateDocumentSize(sheet->documentSize().toSize());
}
}
void CQSpreadsheetCanvas::createAndSetCanvasControllerOn(KoCanvasBase *canvas)
{
// TODO: pass a proper action collection
CQCanvasController *controller = new CQCanvasController(new KActionCollection(this));
setCanvasController(controller);
controller->setCanvas(canvas);
KoToolManager::instance()->addController(controller);
}
void CQSpreadsheetCanvas::createAndSetZoomController(KoCanvasBase *canvas)
{
KoZoomHandler *zoomHandler = static_cast<KoZoomHandler *>(canvas->viewConverter());
setZoomController(new KoZoomController(canvasController(), zoomHandler, new KActionCollection(this)));
Calligra::Sheets::CanvasItem *canvasItem = dynamic_cast<Calligra::Sheets::CanvasItem *>(canvas);
// update the canvas whenever we scroll, the canvas controller must emit this signal on scrolling/panning
connect(canvasController()->proxyObject, SIGNAL(moveDocumentOffset(QPoint)), canvasItem, SLOT(setDocumentOffset(QPoint)));
// whenever the size of the document viewed in the canvas changes, inform the zoom controller
connect(canvasItem, SIGNAL(documentSizeChanged(QSize)), SLOT(updateDocumentSize(QSize)));
canvasItem->update();
}
void CQSpreadsheetCanvas::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry)
{
if (d->canvas) {
d->canvas->setGeometry(newGeometry);
}
QDeclarativeItem::geometryChanged(newGeometry, oldGeometry);
}
void CQSpreadsheetCanvas::updateDocumentSize(const QSize &size)
{
zoomController()->setDocumentSize(size, false);
}
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