Claudio Valerio 13 years ago
parent c7c4bca705
commit b5ebaf1940
  1. 266
      src/gui/UBDocumentNavigator.cpp
  2. 3
      src/gui/UBDocumentNavigator.h

@ -37,13 +37,13 @@
* @param name as the object name
*/
UBDocumentNavigator::UBDocumentNavigator(QWidget *parent, const char *name):QGraphicsView(parent)
, mScene(NULL)
, mCrntItem(NULL)
, mCrntDoc(NULL)
, mNbColumns(1)
, mThumbnailWidth(0)
, mThumbnailMinWidth(100)
, bNavig(false)
, mScene(NULL)
, mCrntItem(NULL)
, mCrntDoc(NULL)
, mNbColumns(1)
, mThumbnailWidth(0)
, mThumbnailMinWidth(100)
, bNavig(false)
{
setObjectName(name);
mScene = new QGraphicsScene(this);
@ -52,6 +52,7 @@ UBDocumentNavigator::UBDocumentNavigator(QWidget *parent, const char *name):QGra
mThumbnailWidth = width() - 2*border();
connect(UBApplication::boardController, SIGNAL(activeSceneChanged()), this, SLOT(addNewPage()));
connect(UBApplication::boardController, SIGNAL(setDocOnPageNavigator(UBDocumentProxy*)), this, SLOT(generateThumbnails()));
connect(mScene, SIGNAL(selectionChanged()), this, SLOT(onSelectionChanged()));
}
@ -62,14 +63,14 @@ UBDocumentNavigator::~UBDocumentNavigator()
{
if(NULL != mCrntItem)
{
delete mCrntItem;
mCrntItem = NULL;
delete mCrntItem;
mCrntItem = NULL;
}
if(NULL != mScene)
{
delete mScene;
mScene = NULL;
delete mScene;
mScene = NULL;
}
}
@ -83,8 +84,8 @@ void UBDocumentNavigator::setDocument(UBDocumentProxy *document)
// content and add all the pages of the given document.
if(document)
{
mCrntDoc = document;
generateThumbnails();
mCrntDoc = document;
generateThumbnails();
}
}
@ -103,20 +104,19 @@ void UBDocumentNavigator::generateThumbnails()
for(int i = 0; i < thumbs.count(); i++)
{
QPixmap pix = thumbs.at(i);
QGraphicsPixmapItem* pixmapItem = new UBSceneThumbnailPixmap(pix, mCrntDoc, i);
QPixmap pix = thumbs.at(i);
QGraphicsPixmapItem* pixmapItem = new UBSceneThumbnailPixmap(pix, mCrntDoc, i);
// Get the selected item
// Get the selected item
if(UBApplication::boardController->activeSceneIndex() == i)
{
selection = pixmapItem;
mCrntItem = dynamic_cast<UBSceneThumbnailPixmap*>(pixmapItem);
mCrntItem->setSelected(true);
}
items << pixmapItem;
labels << tr("Page %0").arg(i + 1);
//itemsPath.append(QUrl::fromLocalFile(mCrntDoc->persistencePath() + QString("/pages/%0").arg(i + 1)));
{
selection = pixmapItem;
mCrntItem = dynamic_cast<UBSceneThumbnailPixmap*>(pixmapItem);
mCrntItem->setSelected(true);
}
items << pixmapItem;
labels << tr("Page %0").arg(i + 1);
}
// Draw the items
@ -134,27 +134,27 @@ void UBDocumentNavigator::updateSpecificThumbnail(int iPage)
if(NULL != pScene)
{
// Save the current state of the scene
pScene->setModified(true);
UBSvgSubsetAdaptor::persistScene(mCrntDoc,pScene, iPage);
UBThumbnailAdaptor::persistScene(mCrntDoc->persistencePath(), pScene, iPage);
// Load it
QList<QPixmap> thumbs = UBThumbnailAdaptor::load(mCrntDoc);
QPixmap pix = thumbs.at(iPage);
QGraphicsPixmapItem* pixmapItem = new UBSceneThumbnailPixmap(pix, mCrntDoc, iPage);
if(pixmapItem)
{
// Get the old thumbnail
QGraphicsItem* pItem = mThumbnails.at(iPage);
if(NULL != pItem)
{
mScene->removeItem(pItem);
mScene->addItem(pixmapItem);
mThumbnails.replace(iPage, pixmapItem);
}
}
// Save the current state of the scene
pScene->setModified(true);
UBSvgSubsetAdaptor::persistScene(mCrntDoc,pScene, iPage);
UBThumbnailAdaptor::persistScene(mCrntDoc->persistencePath(), pScene, iPage);
// Load it
QList<QPixmap> thumbs = UBThumbnailAdaptor::load(mCrntDoc);
QPixmap pix = thumbs.at(iPage);
QGraphicsPixmapItem* pixmapItem = new UBSceneThumbnailPixmap(pix, mCrntDoc, iPage);
if(pixmapItem)
{
// Get the old thumbnail
QGraphicsItem* pItem = mThumbnails.at(iPage);
if(NULL != pItem)
{
mScene->removeItem(pItem);
mScene->addItem(pixmapItem);
mThumbnails.replace(iPage, pixmapItem);
}
}
}
}
@ -169,10 +169,10 @@ void UBDocumentNavigator::addNewPage()
if(!bNavig)
{
generateThumbnails();
if(NULL != mCrntItem)
{
if(NULL != mCrntItem)
{
mCrntItem->setSelected(true);
}
}
}
}
@ -188,24 +188,24 @@ void UBDocumentNavigator::setGraphicsItems(QList<QGraphicsItem *> items, QString
// First, clear the actual thumbnails
foreach(QGraphicsItem* it, mScene->items())
{
mScene->removeItem(it);
delete it;
mScene->removeItem(it);
delete it;
}
// Add the new thumbnails
foreach(QGraphicsItem* it, items)
{
mScene->addItem(it);
mScene->addItem(it);
}
// Add the labels
mLabels.clear();
foreach(QString lb, labels)
{
UBThumbnailTextItem *labelItem = new UBThumbnailTextItem(lb);
mScene->addItem(labelItem);
UBThumbnailTextItem *labelItem = new UBThumbnailTextItem(lb);
mScene->addItem(labelItem);
mLabels << labelItem;
mLabels << labelItem;
}
// Refresh the scene
@ -221,71 +221,71 @@ void UBDocumentNavigator::refreshScene()
if(mLabels.size() > 0)
{
QFontMetrics fm(mLabels.at(0)->font());
labelSpacing = UBSettings::thumbnailSpacing + fm.height();
QFontMetrics fm(mLabels.at(0)->font());
labelSpacing = UBSettings::thumbnailSpacing + fm.height();
}
qreal thumbnailHeight = mThumbnailWidth / UBSettings::minScreenRatio;
for(int i = 0; i < mThumbnails.size(); i++)
{
// Get the item
QGraphicsItem* item = mThumbnails.at(i);
// Compute the scale factor
qreal scaleWidth = mThumbnailWidth / item->boundingRect().width();
qreal scaleHeight = thumbnailHeight / item->boundingRect().height();
qreal scaleFactor = qMin(scaleWidth, scaleHeight);
UBThumbnail* pix = dynamic_cast<UBThumbnail*>(item);
if(pix)
{
scaleFactor = qMin(scaleFactor, 1.0);
}
QTransform transform;
transform.scale(scaleFactor, scaleFactor);
// Apply the scaling
item->setTransform(transform);
item->setFlag(QGraphicsItem::ItemIsSelectable, true);
int columnIndex = i % mNbColumns;
int rowIndex = i / mNbColumns;
if(pix)
{
pix->setColumn(columnIndex);
pix->setRow(rowIndex);
}
int w = item->boundingRect().width();
int h = item->boundingRect().height();
QPointF pos( border() + (mThumbnailWidth - w * scaleFactor) / 2 + columnIndex * (mThumbnailWidth + border()),
border() + rowIndex * (thumbnailHeight + border() + labelSpacing) + (thumbnailHeight - h * scaleFactor) / 2);
item->setPos(pos);
// Add the labels "Page x"
if(mLabels.size() > i)
{
QFontMetrics fm(mLabels.at(i)->font(), this);
QString elidedText = fm.elidedText(mLab.at(i), Qt::ElideRight, mThumbnailWidth);
mLabels.at(i)->setPlainText(elidedText);
mLabels.at(i)->setWidth(fm.width(elidedText) + 2 * mLabels.at(i)->document()->documentMargin());
pos.setY(pos.y() + (thumbnailHeight + h * scaleFactor) / 2 + 5); // What is this 5 ??
qreal labelWidth = fm.width(elidedText);
pos.setX(border() + (mThumbnailWidth - labelWidth) / 2 + columnIndex * (mThumbnailWidth + border()));
mLabels.at(i)->setPos(pos);
}
// Get the item
QGraphicsItem* item = mThumbnails.at(i);
// Compute the scale factor
qreal scaleWidth = mThumbnailWidth / item->boundingRect().width();
qreal scaleHeight = thumbnailHeight / item->boundingRect().height();
qreal scaleFactor = qMin(scaleWidth, scaleHeight);
UBThumbnail* pix = dynamic_cast<UBThumbnail*>(item);
if(pix)
{
scaleFactor = qMin(scaleFactor, 1.0);
}
QTransform transform;
transform.scale(scaleFactor, scaleFactor);
// Apply the scaling
item->setTransform(transform);
item->setFlag(QGraphicsItem::ItemIsSelectable, true);
int columnIndex = i % mNbColumns;
int rowIndex = i / mNbColumns;
if(pix)
{
pix->setColumn(columnIndex);
pix->setRow(rowIndex);
}
int w = item->boundingRect().width();
int h = item->boundingRect().height();
QPointF pos( border() + (mThumbnailWidth - w * scaleFactor) / 2 + columnIndex * (mThumbnailWidth + border()),
border() + rowIndex * (thumbnailHeight + border() + labelSpacing) + (thumbnailHeight - h * scaleFactor) / 2);
item->setPos(pos);
// Add the labels "Page x"
if(mLabels.size() > i)
{
QFontMetrics fm(mLabels.at(i)->font(), this);
QString elidedText = fm.elidedText(mLab.at(i), Qt::ElideRight, mThumbnailWidth);
mLabels.at(i)->setPlainText(elidedText);
mLabels.at(i)->setWidth(fm.width(elidedText) + 2 * mLabels.at(i)->document()->documentMargin());
pos.setY(pos.y() + (thumbnailHeight + h * scaleFactor) / 2 + 5); // What is this 5 ??
qreal labelWidth = fm.width(elidedText);
pos.setX(border() + (mThumbnailWidth - labelWidth) / 2 + columnIndex * (mThumbnailWidth + border()));
mLabels.at(i)->setPos(pos);
}
}
QScrollBar *vertScrollBar = verticalScrollBar();
int scrollBarThickness = 0;
if (vertScrollBar && vertScrollBar->isVisible())
scrollBarThickness = vertScrollBar->width();
scrollBarThickness = vertScrollBar->width();
}
/**
@ -345,12 +345,12 @@ void UBDocumentNavigator::resizeEvent(QResizeEvent *event)
mThumbnailWidth = (width() > mThumbnailMinWidth) ? width() - 2*border() : mThumbnailMinWidth;
// Update the scene rect
// QRect sceneRect;
// sceneRect.setWidth(width() - 2*border());
// sceneRect.setHeight(height() - 2*border());
// sceneRect.moveLeft(border());
// sceneRect.moveTop(border());
// scene()->setSceneRect(sceneRect);
// QRect sceneRect;
// sceneRect.setWidth(width() - 2*border());
// sceneRect.setHeight(height() - 2*border());
// sceneRect.moveLeft(border());
// sceneRect.moveTop(border());
// scene()->setSceneRect(sceneRect);
// Refresh the scene
refreshScene();
@ -365,20 +365,20 @@ void UBDocumentNavigator::mousePressEvent(QMouseEvent *event)
QGraphicsItem* pClickedItem = itemAt(event->pos());
if(NULL != pClickedItem)
{
bNavig = true;
// First, select the clicked item
UBSceneThumbnailPixmap* pCrntItem = dynamic_cast<UBSceneThumbnailPixmap*>(pClickedItem);
if(NULL == pCrntItem)
{
// If we fall here we may have clicked on the label instead of the thumbnail
UBThumbnailTextItem* pTextItem = dynamic_cast<UBThumbnailTextItem*>(pClickedItem);
if(NULL != pTextItem)
{
pCrntItem = dynamic_cast<UBSceneThumbnailPixmap*>(mThumbnails.at(mLabels.indexOf(pTextItem)));
}
}
bNavig = true;
// First, select the clicked item
UBSceneThumbnailPixmap* pCrntItem = dynamic_cast<UBSceneThumbnailPixmap*>(pClickedItem);
if(NULL == pCrntItem)
{
// If we fall here we may have clicked on the label instead of the thumbnail
UBThumbnailTextItem* pTextItem = dynamic_cast<UBThumbnailTextItem*>(pClickedItem);
if(NULL != pTextItem)
{
pCrntItem = dynamic_cast<UBSceneThumbnailPixmap*>(mThumbnails.at(mLabels.indexOf(pTextItem)));
}
}
else
{
if(NULL != mCrntItem && mCrntItem != pCrntItem)
@ -396,7 +396,7 @@ void UBDocumentNavigator::mousePressEvent(QMouseEvent *event)
emit changeCurrentPage();
refreshScene();
}
bNavig = false;
bNavig = false;
}
}
@ -410,7 +410,7 @@ int UBDocumentNavigator::selectedPageNumber()
if(NULL != mCrntItem)
{
nbr = mThumbnails.indexOf(mCrntItem);
nbr = mThumbnails.indexOf(mCrntItem);
}
return nbr;
@ -430,6 +430,6 @@ UBDocumentProxy* UBDocumentNavigator::currentDoc()
*/
void UBDocumentNavigator::onSelectionChanged()
{
// QList<QGraphicsItem*> qlItems = mScene->selectedItems();
// qDebug() << "The number of selected items is " << qlItems.count();
// QList<QGraphicsItem*> qlItems = mScene->selectedItems();
// qDebug() << "The number of selected items is " << qlItems.count();
}

@ -51,13 +51,14 @@ protected:
private slots:
void addNewPage();
void onSelectionChanged();
void generateThumbnails();
private:
void setGraphicsItems(QList<QGraphicsItem*> items, QStringList labels);
void refreshScene();
void updateSpecificThumbnail(int iPage);
int border();
void generateThumbnails();
/** The scene */
QGraphicsScene* mScene;

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