From 4fe8bdce536b37a006b68e419cd6807ef0d23e74 Mon Sep 17 00:00:00 2001
From: Tobias Koenig <tokoe@kde.org>
Date: Fri, 29 Dec 2006 18:18:07 +0000
Subject: [PATCH] Fixed free text selection for rotated pages

svn path=/trunk/playground/graphics/okular/; revision=617621
---
 core/area.h                          | 22 ++++++++++++++++++----
 core/page.cpp                        | 10 ++++------
 generators/poppler/generator_pdf.cpp | 16 ++++++++++------
 3 files changed, 32 insertions(+), 16 deletions(-)

diff --git a/core/area.h b/core/area.h
index ad12c7218..12463689b 100644
--- a/core/area.h
+++ b/core/area.h
@@ -331,13 +331,14 @@ template <class NormalizedShape, class Shape> class RegularArea : public  QList<
         ~RegularArea();
         bool contains( double x, double y ) const;
         bool contains( const NormalizedShape& shape ) const;
-        bool intersects (const RegularArea<NormalizedShape,Shape> * area) const;
-        bool intersects (const NormalizedShape& shape) const;
-        void appendArea (const RegularArea<NormalizedShape,Shape> *area);
+        bool intersects( const RegularArea<NormalizedShape,Shape> *area ) const;
+        bool intersects( const NormalizedShape& shape ) const;
+        void appendArea( const RegularArea<NormalizedShape,Shape> *area );
         void appendShape( const NormalizedShape& shape );
-        void simplify ();
+        void simplify();
         bool isNull() const;
         QList<Shape> geometry( int xScale, int yScale, int dx=0,int dy=0 ) const;
+        void transform( const QMatrix &matrix );
 };
 
 template <class NormalizedShape, class Shape>
@@ -513,6 +514,19 @@ QList<Shape> RegularArea<NormalizedShape, Shape>::geometry( int xScale, int ySca
     return ret;
 }
 
+template <class NormalizedShape, class Shape>
+void RegularArea<NormalizedShape, Shape>::transform( const QMatrix &matrix )
+{
+    if ( !this )
+        return;
+
+    if ( this->isEmpty() )
+        return;
+
+    for ( int i = 0; i < this->count(); ++i )
+        givePtr( (*this)[i] )->transform( matrix );
+}
+
 typedef RegularArea<NormalizedRect,QRect> RegularAreaRect;
 
 class HighlightAreaRect : public RegularAreaRect
diff --git a/core/page.cpp b/core/page.cpp
index fa8b1379f..5a8112658 100644
--- a/core/page.cpp
+++ b/core/page.cpp
@@ -256,7 +256,10 @@ QString Page::text( const RegularAreaRect * area ) const
     if ( !d->m_text )
         return ret;
 
-    ret = d->m_text->text( area );
+    RegularAreaRect rotatedArea = *area;
+    rotatedArea.transform( d->rotationMatrix().inverted() );
+
+    ret = d->m_text->text( &rotatedArea );
 
     return ret;
 }
@@ -270,9 +273,6 @@ void Page::rotateAt( int orientation )
     deleteHighlights();
     deleteTextSelections();
 
-    if ( d->m_text )
-        d->m_text->transform( d->rotationMatrix() );
-
     if ( ( d->m_orientation + d->m_rotation ) % 2 != ( d->m_orientation + neworientation ) % 2 )
         qSwap( d->m_width, d->m_height );
 
@@ -374,8 +374,6 @@ void Page::setTextPage( TextPage * textPage )
 {
     delete d->m_text;
 
-    textPage->transform( d->rotationMatrix() );
-
     d->m_text = textPage;
 }
 
diff --git a/generators/poppler/generator_pdf.cpp b/generators/poppler/generator_pdf.cpp
index 2fcf9e83e..3f757b158 100644
--- a/generators/poppler/generator_pdf.cpp
+++ b/generators/poppler/generator_pdf.cpp
@@ -623,8 +623,8 @@ void PDFGenerator::generatePixmap( Okular::PixmapRequest * request )
     docLock.unlock();
     if ( genTextPage )
     {
-        QList<Poppler::TextBox*> textList = p->textList((Poppler::Page::Rotation)request->page()->rotation());
-        page->setTextPage( abstractTextPage(textList, page->height(), page->width(), request->page()->totalOrientation()) );
+        QList<Poppler::TextBox*> textList = p->textList((Poppler::Page::Rotation)request->page()->orientation());
+        page->setTextPage( abstractTextPage(textList, page->height(), page->width(), request->page()->orientation()) );
         qDeleteAll(textList);
     }
     delete p;
@@ -647,11 +647,15 @@ void PDFGenerator::generateSyncTextPage( Okular::Page * page )
     // build a TextList...
     Poppler::Page *pp = pdfdoc->page( page->number() );
     docLock.lock();
-    QList<Poppler::TextBox*> textList = pp->textList((Poppler::Page::Rotation)page->rotation());
+    QList<Poppler::TextBox*> textList = pp->textList((Poppler::Page::Rotation)page->orientation());
     docLock.unlock();
     delete pp;
     // ..and attach it to the page
-    page->setTextPage( abstractTextPage(textList, page->height(), page->width(), page->totalOrientation()) );
+
+    const double pageWidth = ( page->rotation() % 2 ? page->height() : page->width() );
+    const double pageHeight = ( page->rotation() % 2 ? page->width() : page->height() );
+
+    page->setTextPage( abstractTextPage(textList, pageHeight, pageWidth, (Poppler::Page::Rotation)page->orientation()));
     qDeleteAll(textList);
 }
 
@@ -1291,7 +1295,7 @@ void PDFGenerator::threadFinished()
     if ( !outText.isEmpty() )
     {
         request->page()->setTextPage( abstractTextPage( outText , 
-            request->page()->height(), request->page()->width(),request->page()->totalOrientation()));
+            request->page()->height(), request->page()->width(),request->page()->orientation()));
         qDeleteAll(outText);
     }
     bool genObjectRects = request->id() & (PAGEVIEW_ID | PRESENTATION_ID);
@@ -1471,7 +1475,7 @@ void PDFPixmapGeneratorThread::run()
 
     if ( genTextPage )
     {
-        d->m_textList = pp->textList((Poppler::Page::Rotation)d->currentRequest->page()->rotation());
+        d->m_textList = pp->textList((Poppler::Page::Rotation)d->currentRequest->page()->orientation());
     }
     delete pp;