1 files changed, 190 insertions, 201 deletions

diff --git a/src-qt5/desktop-utils/lumina-pdf/PrintWidget.cpp b/src-qt5/desktop-utils/lumina-pdf/PrintWidget.cpp
index 5c7fa1dd..7c0fd323 100644
--- a/src-qt5/desktop-utils/lumina-pdf/PrintWidget.cpp
+++ b/src-qt5/desktop-utils/lumina-pdf/PrintWidget.cpp
@@ -1,7 +1,8 @@
 #include "PrintWidget.h"
 
-PrintWidget::PrintWidget(QWidget *parent) : QGraphicsView(parent), scene(0), curPage(1),
-  viewMode(SinglePageView), zoomMode(FitInView), zoomFactor(1), initialized(false), fitting(true) {
+PrintWidget::PrintWidget(Renderer *backend, QWidget *parent) : 
+  QGraphicsView(parent), scene(0), curPage(1), viewMode(SinglePageView), 
+  zoomMode(FitInView), zoomFactor(1), initialized(false), fitting(true), BACKEND(backend) {
 
   this->setMouseTracking(true);
   QList<QWidget*> children = this->findChildren<QWidget*>("",Qt::FindChildrenRecursively);
@@ -9,24 +10,22 @@ PrintWidget::PrintWidget(QWidget *parent) : QGraphicsView(parent), scene(0), cur
     children[i]->setContextMenuPolicy(Qt::CustomContextMenu);
     connect(children[i], SIGNAL(customContextMenuRequested(const QPoint&)), this, SIGNAL(customContextMenuRequested(const QPoint&)) );
   }
-	this->setInteractive(false);
-	this->setDragMode(QGraphicsView::ScrollHandDrag);
-	this->setViewportUpdateMode(QGraphicsView::SmartViewportUpdate);
+  this->setInteractive(false);
+  this->setDragMode(QGraphicsView::ScrollHandDrag);
+  this->setViewportUpdateMode(QGraphicsView::SmartViewportUpdate);
   this->setFocusPolicy(Qt::NoFocus);
-	QObject::connect(this->verticalScrollBar(), SIGNAL(valueChanged(int)),
-									 this, SLOT(updateCurrentPage()));
-	QObject::connect(this, SIGNAL(resized()), this, SLOT(fit()));
-
-	scene = new QGraphicsScene(this);
-	scene->setBackgroundBrush(Qt::gray);
-	this->setScene(scene);
-  this->degrees = 0;
-  this->rotMatrix = QMatrix(1, 0, 0, 1, 0 ,0);
-
-	/*QVBoxLayout *layout = new QVBoxLayout;
-	setLayout(layout);
-	layout->setContentsMargins(0, 0, 0, 0);
-	layout->addWidget(this);*/
+  QObject::connect(this->verticalScrollBar(), SIGNAL(valueChanged(int)),
+                   this, SLOT(updateCurrentPage()));
+  QObject::connect(this, SIGNAL(resized()), this, SLOT(fit()));
+
+  scene = new QGraphicsScene(this);
+  scene->setBackgroundBrush(Qt::gray);
+  this->setScene(scene);
+
+  /*QVBoxLayout *layout = new QVBoxLayout;
+  setLayout(layout);
+  layout->setContentsMargins(0, 0, 0, 0);
+  layout->addWidget(this);*/
 }
 
 PrintWidget::~PrintWidget() {
@@ -48,8 +47,8 @@ void PrintWidget::fitToWidth() {
 
 void PrintWidget::setZoomMode(ZoomMode mode) {
   zoomMode = mode;
-	fitting = true;
-	fit(true);
+  fitting = true;
+  fit(true);
 }
 
 void PrintWidget::setAllPagesViewMode() {
@@ -65,31 +64,31 @@ void PrintWidget::setFacingPagesViewMode() {
 }
 
 void PrintWidget::setViewMode(ViewMode mode) {
-	viewMode = mode;
-	layoutPages();
-	if (viewMode == AllPagesView) {
-		this->fitInView(scene->itemsBoundingRect(), Qt::KeepAspectRatio);
-		fitting = false;
-		zoomMode = CustomZoom;
-		//zoomFactor = this->transform().m11() * (double(printer->logicalDpiY()) / logicalDpiY());
-	} else {
-		fitting = true;
-		fit();
-	}
+  viewMode = mode;
+  layoutPages();
+  if (viewMode == AllPagesView) {
+    this->fitInView(scene->itemsBoundingRect(), Qt::KeepAspectRatio);
+    fitting = false;
+    zoomMode = CustomZoom;
+    //zoomFactor = this->transform().m11() * (double(printer->logicalDpiY()) / logicalDpiY());
+  } else {
+    fitting = true;
+    fit();
+  }
 }
 
 void PrintWidget::zoomIn(double factor) {
-	fitting = false;
-	zoomMode = CustomZoom;
-	zoomFactor *= factor;
-	this->scale(factor, factor);
+  fitting = false;
+  zoomMode = CustomZoom;
+  zoomFactor *= factor;
+  this->scale(factor, factor);
 }
 
 void PrintWidget::zoomOut(double factor) {
-	fitting = false;
-	zoomMode = CustomZoom;
-	zoomFactor *= factor;
-	this->scale(1/factor, 1/factor);
+  fitting = false;
+  zoomMode = CustomZoom;
+  zoomFactor *= factor;
+  this->scale(1/factor, 1/factor);
 }
 
 void PrintWidget::updatePreview() {
@@ -99,43 +98,63 @@ void PrintWidget::updatePreview() {
 }
 
 void PrintWidget::setVisible(bool visible) {
-	if(visible and !initialized)
-		updatePreview();
-	QGraphicsView::setVisible(visible);
+  if(visible and !initialized)
+    updatePreview();
+  QGraphicsView::setVisible(visible);
 }
 
 void PrintWidget::setCurrentPage(int pageNumber) {
-	if(pageNumber < 0 || pageNumber > (pages.count()+1) ){ return; }
-	publicPageNum = pageNumber; //publicly requested page number (+/- 1 from actual page range)
-	emit currentPageChanged();
-	if(pageNumber < 1 || pageNumber > pages.count())
-		return;
-	int lastPage = curPage;
-	curPage = pageNumber;
-
-	if (lastPage != curPage && lastPage > 0 && lastPage <= pages.count()) {
-		if (zoomMode != FitInView) {
-			QScrollBar *hsc = this->horizontalScrollBar();
-			QScrollBar *vsc = this->verticalScrollBar();
-			QPointF pt = this->transform().map(pages.at(curPage-1)->pos());
-			vsc->setValue(int(pt.y()) - 10);
-			hsc->setValue(int(pt.x()) - 10);
-		} else {
-			this->centerOn(pages.at(curPage-1));
-		}
-	}
+  if(pageNumber < 0 || pageNumber > (pages.count()+1) ){ return; }
+  publicPageNum = pageNumber; //publicly requested page number (+/- 1 from actual page range)
+  emit currentPageChanged();
+  if(pageNumber < 1 || pageNumber > pages.count())
+    return;
+  int lastPage = curPage;
+  curPage = pageNumber;
+
+  if (lastPage != curPage && lastPage > 0 && lastPage <= pages.count()) {
+    if (zoomMode != FitInView) {
+      QScrollBar *hsc = this->horizontalScrollBar();
+      QScrollBar *vsc = this->verticalScrollBar();
+      QPointF pt = this->transform().map(pages.at(curPage-1)->pos());
+      vsc->setValue(int(pt.y()) - 10);
+      hsc->setValue(int(pt.x()) - 10);
+    } else {
+      this->centerOn(pages.at(curPage-1));
+    }
+  }
 }
 
 void PrintWidget::highlightText(TextData *text) {
   //Creates a rectangle around the text if the text has not already been highlighted
   if(!text->highlighted()) {
-    //qDebug() << "Highlighting text: " << text->text() << "At page: " << text->page();
-    QRect rect = text->loc();
-    double pageHeight = pages.at(0)->boundingRect().height();
-    QRectF textRect = rect.adjusted(0, pageHeight*(text->page()-1), 0, 0); //move the rectangle onto the right page
-    QBrush highlightFill(QColor(255, 255, 177, 50));
-    QPen highlightOutline(QColor(255, 255, 100, 98));
-    scene->addRect(textRect, highlightOutline, highlightFill);
+    double pageHeight = pages.at(text->page()-1)->boundingRect().height();
+    int degrees = BACKEND->rotatedDegrees();
+    //Shows the text's location on a non-rotated page
+    QRectF rect = text->loc();
+    //Rotates the rectangle by the page's center and gets the right calculation for text's new location
+    if(degrees != 0) {
+      QSize center = BACKEND->imageHash(text->page()-1).size()/2;
+
+      if(degrees == 90 or degrees == 270)
+        center.transpose();
+
+      double cx = center.width(), cy = center.height();
+      rect.adjust(-cx, -cy, -cx, -cy);
+      QMatrix matrix;
+      matrix.rotate(BACKEND->rotatedDegrees());
+      rect = matrix.mapRect(rect);
+      if(BACKEND->rotatedDegrees() == 180)
+        rect.adjust(cx, cy, cx, cy);
+      else
+        rect.adjust(cy, cx, cy, cx);
+    }
+    //Moves the rectangle onto the right page
+    rect.moveTop(rect.y() + pageHeight*(text->page()-1));
+    //Transparent yellow for the highlight box
+    QBrush highlightFill(QColor(255, 255, 177, 100));
+    QPen highlightOutline(QColor(255, 255, 100, 125));
+    scene->addRect(rect, highlightOutline, highlightFill);
     text->highlighted(true);
   }
 }
@@ -143,23 +162,25 @@ void PrintWidget::highlightText(TextData *text) {
 //Private functions
 
 void PrintWidget::generatePreview() {
-	populateScene(); // i.e. setPreviewPrintedPictures() e.l.
-	layoutPages();
-	curPage = qBound(1, curPage, pages.count());
-	publicPageNum = curPage;
-	emit currentPageChanged();
-	if (fitting){ fit(); }
+  qDebug() << "Generating Preview";
+  populateScene(); // i.e. setPreviewPrintedPictures() e.l.
+  layoutPages();
+  curPage = qBound(1, curPage, pages.count());
+  publicPageNum = curPage;
+  emit currentPageChanged();
+  if (fitting){ fit(); }
 }
 
 void PrintWidget::layoutPages() {
-	int numPages = pages.count();
-	if (numPages < 1)
-		return;
-
-	int numPagePlaces = numPages;
-	int cols = 1; // singleMode and default
-	if (viewMode == AllPagesView) {
-    cols = ((pictures->value(0)).width() > (pictures->value(0)).height()) ? qFloor(qSqrt(numPages)) : qCeil(qSqrt(numPages));
+  int numPages = pages.count();
+  if (numPages < 1)
+    return;
+
+  int numPagePlaces = numPages;
+  int cols = 1; // singleMode and default
+  QSize pageSize = BACKEND->imageHash(0).size();
+  if (viewMode == AllPagesView) {
+    cols = pageSize.width() > pageSize.height() ? qFloor(qSqrt(numPages)) : qCeil(qSqrt(numPages));
     cols += cols % 2;  // Nicer with an even number of cols
   } else if (viewMode == FacingPagesView) {
     cols = 2;
@@ -177,152 +198,120 @@ void PrintWidget::layoutPages() {
         pages.at(pageNum-1)->setPos(QPointF(j*itemWidth, i*itemHeight));
         pageNum++;
       }
-		}
-	}
-	scene->setSceneRect(scene->itemsBoundingRect());
+    }
+  }
+  scene->setSceneRect(scene->itemsBoundingRect());
+  qDebug() << "Finished Page Layout";
 }
 
 void PrintWidget::populateScene()
 {
   for (int i = 0; i < pages.size(); i++){
-		scene->removeItem(pages.at(i));
+    scene->removeItem(pages.at(i));
   }
   qDeleteAll(pages);
   pages.clear();
-  //qDebug() << "populateScene";
-  if(pictures==0){ return; } //nothing to show yet
-  int numPages = pictures->count();
+  qDebug() << "populateScene";
+  int numPages = BACKEND->numPages();
+  if(BACKEND->hashSize() < numPages){ return; } //nothing to show yet
 
   for (int i = 0; i < numPages; i++) {
-    QImage pagePicture = pictures->value(i);
-
-		QSize paperSize = pictures->value(i).size();
+    QImage pagePicture = BACKEND->imageHash(i);
 
-		//Changes the paper orientation if rotated by 90 or 270 degrees
-		if(degrees == 90 or degrees == 270)
-			paperSize.transpose();
+    QSize paperSize = pagePicture.size();
 
-    if(degrees != 0) {
-      pagePicture = pagePicture.transformed(rotMatrix, Qt::SmoothTransformation);
-      //qDebug() << "Rotating by: " << degrees << " degrees";
-    }
     if(pagePicture.isNull()) {
       qDebug() << "NULL IMAGE ON PAGE " << i;
       continue;
     }
-		PageItem* item = new PageItem(i+1, pagePicture, paperSize);
-		scene->addItem(item);
-		pages.append(item);
+    PageItem* item = new PageItem(i+1, pagePicture, paperSize);
+    scene->addItem(item);
+    pages.append(item);
   }
 }
 
 //Private Slots
 void PrintWidget::updateCurrentPage() {
-	if (viewMode == AllPagesView)
-		return;
-
-	int newPage = calcCurrentPage();
-	if (newPage != curPage) {
-		curPage = newPage;
-		publicPageNum = curPage;
-		emit currentPageChanged();
-	}
+  if (viewMode == AllPagesView)
+    return;
+
+  int newPage = calcCurrentPage();
+  if (newPage != curPage) {
+    curPage = newPage;
+    publicPageNum = curPage;
+    emit currentPageChanged();
+  }
 }
 
 int PrintWidget::calcCurrentPage() {
-	int maxArea = 0;
-	int newPage = curPage;
-	QRect viewRect = this->viewport()->rect();
-	QList<QGraphicsItem*> items = this->items(viewRect);
-	for (int i=0; i<items.size(); ++i) {
-		PageItem* pg = static_cast<PageItem*>(items.at(i));
-		QRect overlap = this->mapFromScene(pg->sceneBoundingRect()).boundingRect() & viewRect;
-		int area = overlap.width() * overlap.height();
-		if (area > maxArea) {
-			maxArea = area;
-			newPage = pg->pageNumber();
-		} else if (area == maxArea && pg->pageNumber() < newPage) {
-			newPage = pg->pageNumber();
-		}
-	}
-	return newPage;
+  int maxArea = 0;
+  int newPage = curPage;
+  QRect viewRect = this->viewport()->rect();
+  QList<QGraphicsItem*> items = this->items(viewRect);
+  for (int i=0; i<items.size(); ++i) {
+    PageItem* pg = static_cast<PageItem*>(items.at(i));
+    QRect overlap = this->mapFromScene(pg->sceneBoundingRect()).boundingRect() & viewRect;
+    int area = overlap.width() * overlap.height();
+    if (area > maxArea) {
+      maxArea = area;
+      newPage = pg->pageNumber();
+    } else if (area == maxArea && pg->pageNumber() < newPage) {
+      newPage = pg->pageNumber();
+    }
+  }
+  return newPage;
 }
 
 void PrintWidget::fit(bool doFitting) {
-	if (curPage < 1 || curPage > pages.count())
-		return;
-	if (!doFitting && !fitting)
-		return;
-
-	if (doFitting && fitting) {
-		QRect viewRect = this->viewport()->rect();
-		if (zoomMode == FitInView) {
-			QList<QGraphicsItem*> containedItems = this->items(viewRect, Qt::ContainsItemBoundingRect);
-			foreach(QGraphicsItem* item, containedItems) {
-				PageItem* pg = static_cast<PageItem*>(item);
-				if (pg->pageNumber() == curPage)
-					return;
-			}
-		}
-
-		int newPage = calcCurrentPage();
-		if (newPage != curPage)
-			curPage = newPage;
-	}
-
-	QRectF target = pages.at(curPage-1)->sceneBoundingRect();
-	if (viewMode == FacingPagesView) {
-		if (curPage % 2)
-			target.setLeft(target.left() - target.width());
-		else
-			target.setRight(target.right() + target.width());
-	} else if (viewMode == AllPagesView) {
-		target = scene->itemsBoundingRect();
-	}
-
-	if (zoomMode == FitToWidth) {
-		QTransform t;
-		qreal scale = this->viewport()->width() / target.width();
-		t.scale(scale, scale);
-		this->setTransform(t);
-		if (doFitting && fitting) {
-			QRectF viewSceneRect = this->viewportTransform().mapRect(this->viewport()->rect());
-			viewSceneRect.moveTop(target.top());
-			this->ensureVisible(viewSceneRect); // Nah...
-		}
-	} else {
-		this->fitInView(target, Qt::KeepAspectRatio);
-		if (zoomMode == FitInView) {
-			int step = qRound(this->matrix().mapRect(target).height());
-			this->verticalScrollBar()->setSingleStep(step);
-			this->verticalScrollBar()->setPageStep(step);
-		}
-	}
-
-	//zoomFactor = this->transform().m11() * (float(printer->logicalDpiY()) / this->logicalDpiY());
-}
+  if (curPage < 1 || curPage > pages.count())
+    return;
+  if (!doFitting && !fitting)
+    return;
+
+  if (doFitting && fitting) {
+    QRect viewRect = this->viewport()->rect();
+    if (zoomMode == FitInView) {
+      QList<QGraphicsItem*> containedItems = this->items(viewRect, Qt::ContainsItemBoundingRect);
+      foreach(QGraphicsItem* item, containedItems) {
+        PageItem* pg = static_cast<PageItem*>(item);
+        if (pg->pageNumber() == curPage)
+          return;
+      }
+    }
 
-void PrintWidget::setPictures(QHash<int, QImage> *hash) {
-  pictures = hash;
-  this->setVisible(hash!=0);
-}
+    int newPage = calcCurrentPage();
+    if (newPage != curPage)
+      curPage = newPage;
+  }
 
-//Sets how much to rotate the image, by either 90, 180, or 270 degrees. Adds 90 degrees for cw and -90 for ccw.
-void PrintWidget::setDegrees(int degrees) {
-  //Mods by 360, but adds and remods because of how C++ treats negative mods
-  this->degrees = ( ( ( this->degrees + degrees ) % 360 ) + 360 ) % 360;
-  switch(this->degrees) {
-    case 270:
-      rotMatrix = QMatrix(0, -1, 1, 0, 0, 0);
-      break;
-    case 90:
-      rotMatrix = QMatrix(0, 1, -1, 0, 0, 0);
-      break;
-    case 180:
-      rotMatrix = QMatrix(-1, 0, 0, -1, 0, 0);
-      break;
-    default:
-      rotMatrix = QMatrix(1, 0, 0, 1, 0 ,0);
+  QRectF target = pages.at(curPage-1)->sceneBoundingRect();
+  if (viewMode == FacingPagesView) {
+    if (curPage % 2)
+      target.setLeft(target.left() - target.width());
+    else
+      target.setRight(target.right() + target.width());
+  } else if (viewMode == AllPagesView) {
+    target = scene->itemsBoundingRect();
   }
-  this->updatePreview();
+
+  if (zoomMode == FitToWidth) {
+    QTransform t;
+    qreal scale = this->viewport()->width() / target.width();
+    t.scale(scale, scale);
+    this->setTransform(t);
+    if (doFitting && fitting) {
+      QRectF viewSceneRect = this->viewportTransform().mapRect(this->viewport()->rect());
+      viewSceneRect.moveTop(target.top());
+      this->ensureVisible(viewSceneRect); // Nah...
+    }
+  } else {
+    this->fitInView(target, Qt::KeepAspectRatio);
+    if (zoomMode == FitInView) {
+      int step = qRound(this->matrix().mapRect(target).height());
+      this->verticalScrollBar()->setSingleStep(step);
+      this->verticalScrollBar()->setPageStep(step);
+    }
+  }
+
+  //zoomFactor = this->transform().m11() * (float(printer->logicalDpiY()) / this->logicalDpiY());
 }