| -rw-r--r-- | noncore/graphics/opie-eye/gui/imagescrollview.cpp | 13 | ||||
| -rw-r--r-- | noncore/graphics/opie-eye/gui/imagescrollview.h | 2 |
2 files changed, 10 insertions, 5 deletions
diff --git a/noncore/graphics/opie-eye/gui/imagescrollview.cpp b/noncore/graphics/opie-eye/gui/imagescrollview.cpp index ee20f40..99fdc51 100644 --- a/noncore/graphics/opie-eye/gui/imagescrollview.cpp +++ b/noncore/graphics/opie-eye/gui/imagescrollview.cpp @@ -1,332 +1,337 @@ #include "imagescrollview.h" #include <opie2/odebug.h> using namespace Opie::Core; #include <qimage.h> #include <qlayout.h> ImageScrollView::ImageScrollView( QWidget* parent, const char* name, WFlags f ) :QScrollView(parent,name,f|Qt::WRepaintNoErase ),_image_data(),_original_data(),scale_to_fit(true), - rotate_to_fit(true),first_resize_done(false) + rotate_to_fit(true),first_resize_done(false),m_lastName("") { init(); + qDebug("constructor done"); } ImageScrollView::ImageScrollView (const QImage&img, QWidget * parent, const char * name, WFlags f,bool always_scale,bool rfit) :QScrollView(parent,name,f|Qt::WRepaintNoErase),_image_data(),_original_data(img),scale_to_fit(always_scale), - rotate_to_fit(rfit),first_resize_done(false) + rotate_to_fit(rfit),first_resize_done(false),m_lastName("") { init(); } ImageScrollView::ImageScrollView (const QString&img, QWidget * parent, const char * name, WFlags f,bool always_scale,bool rfit) - :QScrollView(parent,name,f|Qt::WRepaintNoErase),_image_data(),_original_data(img),scale_to_fit(always_scale), - rotate_to_fit(rfit),first_resize_done(false) + :QScrollView(parent,name,f|Qt::WRepaintNoErase),_image_data(),_original_data(),scale_to_fit(always_scale), + rotate_to_fit(rfit),first_resize_done(false),m_lastName("") { init(); + setImage(img); } void ImageScrollView::setImage(const QImage&img) { _image_data = QImage(); _original_data=img; + m_lastName = ""; if (first_resize_done) { generateImage(); } } void ImageScrollView::setImage( const QString& path ) { odebug << "load new image " << oendl; + if (m_lastName == path) return; + m_lastName = path; _original_data.load(path); _image_data = QImage(); if (first_resize_done) { generateImage(); } } /* should be called every time the QImage changed it content */ void ImageScrollView::init() { odebug << "init " << oendl; viewport()->setBackgroundColor(white); if (first_resize_done) { last_rot = Rotate0; generateImage(); odebug << "reinit display " << oendl; } else if (_original_data.size().isValid()) { resizeContents(_original_data.width(),_original_data.height()); } } void ImageScrollView::setAutoRotate(bool how) { /* to avoid double repaints */ if (rotate_to_fit != how) { rotate_to_fit = how; _image_data = QImage(); generateImage(); } } void ImageScrollView::setAutoScale(bool how) { scale_to_fit = how; if (!how) { rotate_to_fit = false; } _image_data = QImage(); generateImage(); } ImageScrollView::~ImageScrollView() { } void ImageScrollView::rescaleImage(int w, int h) { if (_image_data.width()==w && _image_data.height()==h) { return; } double hs = (double)h / (double)_image_data.height() ; double ws = (double)w / (double)_image_data.width() ; double scaleFactor = (hs > ws) ? ws : hs; int smoothW = (int)(scaleFactor * _image_data.width()); int smoothH = (int)(scaleFactor * _image_data.height()); _image_data = _image_data.smoothScale(smoothW,smoothH); } void ImageScrollView::rotate_into_data(Rotation r) { /* realy - we must do this that way, 'cause when acting direct on _image_data the app will segfault :( */ QImage dest; int x, y; if ( _original_data.depth() > 8 ) { unsigned int *srcData, *destData; switch ( r ) { case Rotate90: dest.create(_original_data.height(), _original_data.width(), _original_data.depth()); for ( y=0; y < _original_data.height(); ++y ) { srcData = (unsigned int *)_original_data.scanLine(y); for ( x=0; x < _original_data.width(); ++x ) { destData = (unsigned int *)dest.scanLine(x); destData[_original_data.height()-y-1] = srcData[x]; } } break; case Rotate180: dest.create(_original_data.width(), _original_data.height(), _original_data.depth()); for ( y=0; y < _original_data.height(); ++y ) { srcData = (unsigned int *)_original_data.scanLine(y); destData = (unsigned int *)dest.scanLine(_original_data.height()-y-1); for ( x=0; x < _original_data.width(); ++x ) destData[_original_data.width()-x-1] = srcData[x]; } break; case Rotate270: dest.create(_original_data.height(), _original_data.width(), _original_data.depth()); for ( y=0; y < _original_data.height(); ++y ) { srcData = (unsigned int *)_original_data.scanLine(y); for ( x=0; x < _original_data.width(); ++x ) { destData = (unsigned int *)dest.scanLine(_original_data.width()-x-1); destData[y] = srcData[x]; } } break; default: dest = _original_data; break; } } else { unsigned char *srcData, *destData; unsigned int *srcTable, *destTable; switch ( r ) { case Rotate90: dest.create(_original_data.height(), _original_data.width(), _original_data.depth()); dest.setNumColors(_original_data.numColors()); srcTable = (unsigned int *)_original_data.colorTable(); destTable = (unsigned int *)dest.colorTable(); for ( x=0; x < _original_data.numColors(); ++x ) destTable[x] = srcTable[x]; for ( y=0; y < _original_data.height(); ++y ) { srcData = (unsigned char *)_original_data.scanLine(y); for ( x=0; x < _original_data.width(); ++x ) { destData = (unsigned char *)dest.scanLine(x); destData[_original_data.height()-y-1] = srcData[x]; } } break; case Rotate180: dest.create(_original_data.width(), _original_data.height(), _original_data.depth()); dest.setNumColors(_original_data.numColors()); srcTable = (unsigned int *)_original_data.colorTable(); destTable = (unsigned int *)dest.colorTable(); for ( x=0; x < _original_data.numColors(); ++x ) destTable[x] = srcTable[x]; for ( y=0; y < _original_data.height(); ++y ) { srcData = (unsigned char *)_original_data.scanLine(y); destData = (unsigned char *)dest.scanLine(_original_data.height()-y-1); for ( x=0; x < _original_data.width(); ++x ) destData[_original_data.width()-x-1] = srcData[x]; } break; case Rotate270: dest.create(_original_data.height(), _original_data.width(), _original_data.depth()); dest.setNumColors(_original_data.numColors()); srcTable = (unsigned int *)_original_data.colorTable(); destTable = (unsigned int *)dest.colorTable(); for ( x=0; x < _original_data.numColors(); ++x ) destTable[x] = srcTable[x]; for ( y=0; y < _original_data.height(); ++y ) { srcData = (unsigned char *)_original_data.scanLine(y); for ( x=0; x < _original_data.width(); ++x ) { destData = (unsigned char *)dest.scanLine(_original_data.width()-x-1); destData[y] = srcData[x]; } } break; default: dest = _original_data; break; } } _image_data = dest; } void ImageScrollView::generateImage() { Rotation r = Rotate0; if (width()>height()&&_original_data.width()<_original_data.height() || width()<height()&&_original_data.width()>_original_data.height()) { if (rotate_to_fit) r = Rotate90; } odebug << " r = " << r << oendl; if (scale_to_fit) { if (!_image_data.size().isValid()||width()>_image_data.width()||height()>_image_data.height()) { odebug << "Rescaling data" << oendl; if (r==Rotate0) { _image_data = _original_data; } else { rotate_into_data(r); } } rescaleImage(width(),height()); resizeContents(_image_data.width(),_image_data.height()); } else if (!first_resize_done||r!=last_rot||_image_data.width()==0) { if (r==Rotate0) { _image_data = _original_data; } else { rotate_into_data(r); } last_rot = r; resizeContents(_image_data.width(),_image_data.height()); } } void ImageScrollView::resizeEvent(QResizeEvent * e) { odebug << "ImageScrollView resizeEvent" << oendl; QScrollView::resizeEvent(e); generateImage(); first_resize_done = true; } void ImageScrollView::drawContents(QPainter * p, int clipx, int clipy, int clipw, int cliph) { int w = clipw; int h = cliph; int x = clipx; int y = clipy; bool erase = false; if (!_image_data.size().isValid()) { p->fillRect(clipx,clipy,clipw,cliph,white); return; } if (w>_image_data.width()) { w=_image_data.width(); x = 0; erase = true; } else if (x+w>_image_data.width()){ x = _image_data.width()-w; } if (h>_image_data.height()) { h=_image_data.height(); y = 0; erase = true; } else if (y+h>_image_data.height()){ y = _image_data.height()-h; } if (erase||_image_data.hasAlphaBuffer()) { p->fillRect(clipx,clipy,clipw,cliph,white); } p->drawImage(clipx,clipy,_image_data,x,y,w,h); } /* using the real geometry points and not the translated points is wanted! */ void ImageScrollView::viewportMouseMoveEvent(QMouseEvent* e) { int mx, my; mx = e->x(); my = e->y(); int diffx = _mouseStartPosX-mx; int diffy = _mouseStartPosY-my; scrollBy(diffx,diffy); _mouseStartPosX=mx; _mouseStartPosY=my; } void ImageScrollView::contentsMouseReleaseEvent ( QMouseEvent * e) { _mouseStartPosX = e->x(); _mouseStartPosY = e->y(); } void ImageScrollView::contentsMousePressEvent ( QMouseEvent * e) { _mouseStartPosX = e->x(); _mouseStartPosY = e->y(); } void ImageScrollView::setDestructiveClose() { WFlags fl = getWFlags(); /* clear it just in case */ fl &= ~WDestructiveClose; fl |= WDestructiveClose; setWFlags( fl ); } /* for testing */ ImageDlg::ImageDlg(const QString&fname,QWidget * parent, const char * name) :QDialog(parent,name,true,WStyle_ContextHelp) { QVBoxLayout*dlglayout = new QVBoxLayout(this); dlglayout->setSpacing(2); dlglayout->setMargin(1); ImageScrollView*inf = new ImageScrollView(fname,this); dlglayout->addWidget(inf); odebug << "Imagedlg constructor end" << oendl; } ImageDlg::~ImageDlg() { } diff --git a/noncore/graphics/opie-eye/gui/imagescrollview.h b/noncore/graphics/opie-eye/gui/imagescrollview.h index dcf54ce..44f2a64 100644 --- a/noncore/graphics/opie-eye/gui/imagescrollview.h +++ b/noncore/graphics/opie-eye/gui/imagescrollview.h @@ -1,72 +1,72 @@ #ifndef _IMAGE_SCROLL_VIEW_H #define _IMAGE_SCROLL_VIEW_H #include <qscrollview.h> #include <qimage.h> #include <qstring.h> #include <qdialog.h> class QPainter; class ImageScrollView:public QScrollView { Q_OBJECT public: ImageScrollView( QWidget* parent, const char* name = 0, WFlags fl = 0 ); ImageScrollView (const QImage&, QWidget * parent=0, const char * name=0, WFlags f=0,bool always_scale=false,bool rfit=false ); ImageScrollView (const QString&, QWidget * parent=0, const char * name=0, WFlags f=0,bool always_scale=false,bool rfit=false ); virtual ~ImageScrollView(); void setImage(const QImage&); void setImage( const QString& path ); void setDestructiveClose(); void setAutoRotate(bool); void setAutoScale(bool); enum Rotation { Rotate0, Rotate90, Rotate180, Rotate270 }; signals: void sig_return(); protected: virtual void drawContents ( QPainter * p, int clipx, int clipy, int clipw, int cliph ); void init(); QImage _image_data; QImage _original_data; int _mouseStartPosX,_mouseStartPosY; bool scale_to_fit; bool rotate_to_fit; bool first_resize_done; Rotation last_rot; - + QString m_lastName; void rescaleImage(int w, int h); void rotate_into_data(Rotation r); void generateImage(); protected slots: virtual void viewportMouseMoveEvent(QMouseEvent* e); virtual void contentsMousePressEvent ( QMouseEvent * e); virtual void contentsMouseReleaseEvent ( QMouseEvent * e); virtual void resizeEvent(QResizeEvent * e); }; /* for testing */ class ImageDlg:public QDialog { Q_OBJECT public: ImageDlg(const QString&,QWidget * parent=0, const char * name=0); virtual ~ImageDlg(); }; #endif |