Diffstat (limited to 'noncore/graphics/opie-eye/gui/imagescrollview.cpp') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | noncore/graphics/opie-eye/gui/imagescrollview.cpp | 212 |
1 files changed, 149 insertions, 63 deletions
diff --git a/noncore/graphics/opie-eye/gui/imagescrollview.cpp b/noncore/graphics/opie-eye/gui/imagescrollview.cpp index d034ee0..3bb07a7 100644 --- a/noncore/graphics/opie-eye/gui/imagescrollview.cpp +++ b/noncore/graphics/opie-eye/gui/imagescrollview.cpp @@ -1,84 +1,117 @@ #include "imagescrollview.h" +#include "lib/oimagezoomer.h" + #include <opie2/odebug.h> #include <opie2/oapplication.h> #include <opie2/owait.h> -using namespace Opie::Core; - #include <qimage.h> #include <qlayout.h> #include <qpe/qcopenvelope_qws.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),show_zoomer(true),first_resize_done(false),m_lastName("") +/* for usage with the bitset */ +#define AUTO_SCALE 0 +#define AUTO_ROTATE 1 +#define SHOW_ZOOMER 2 +#define FIRST_RESIZE_DONE 3 +#define IMAGE_IS_JPEG 4 +#define IMAGE_SCALED_LOADED 5 + +#define SCROLLVIEW_BITSET_SIZE 6 + +namespace Opie { +namespace MM { +OImageScrollView::OImageScrollView( QWidget* parent, const char* name, WFlags f ) + :QScrollView(parent,name,f|Qt::WRepaintNoErase ),_image_data(),_original_data(), + m_states(SCROLLVIEW_BITSET_SIZE),m_lastName("") { + _zoomer = 0; + m_states[AUTO_SCALE]=true; + m_states[AUTO_ROTATE]=true; + m_states[FIRST_RESIZE_DONE]=false; + m_states[IMAGE_IS_JPEG]=false; + m_states[IMAGE_SCALED_LOADED]=false; + m_states[SHOW_ZOOMER]=true; init(); } -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),show_zoomer(true),first_resize_done(false),m_lastName("") +OImageScrollView::OImageScrollView (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), + m_states(SCROLLVIEW_BITSET_SIZE),m_lastName("") { + _zoomer = 0; + m_states[AUTO_SCALE]=always_scale; + m_states[AUTO_ROTATE]=rfit; + m_states[FIRST_RESIZE_DONE]=false; + m_states[IMAGE_IS_JPEG]=false; + m_states[IMAGE_SCALED_LOADED]=false; + m_states[SHOW_ZOOMER]=true; _original_data.convertDepth(QPixmap::defaultDepth()); _original_data.setAlphaBuffer(false); 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(),scale_to_fit(always_scale), - rotate_to_fit(rfit),show_zoomer(true),first_resize_done(false),m_lastName("") +OImageScrollView::OImageScrollView (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(),m_states(SCROLLVIEW_BITSET_SIZE),m_lastName("") { + _zoomer = 0; + m_states.resize(SCROLLVIEW_BITSET_SIZE); + m_states[AUTO_SCALE]=always_scale; + m_states[AUTO_ROTATE]=rfit; + m_states[FIRST_RESIZE_DONE]=false; + m_states[IMAGE_IS_JPEG]=false; + m_states[IMAGE_SCALED_LOADED]=false; + m_states[SHOW_ZOOMER]=true; init(); setImage(img); } -void ImageScrollView::setImage(const QImage&img) +void OImageScrollView::setImage(const QImage&img) { _image_data = QImage(); _original_data=img; _original_data.convertDepth(QPixmap::defaultDepth()); _original_data.setAlphaBuffer(false); m_lastName = ""; - image_is_jpeg = false; - image_scaled_loaded = false; - if (first_resize_done) { + setImageIsJpeg(false); + setImageScaledLoaded(false); + if (FirstResizeDone()) { generateImage(); } } -void ImageScrollView::loadJpeg(bool interncall) +void OImageScrollView::loadJpeg(bool interncall) { if (m_lastName.isEmpty()) return; QImageIO iio( m_lastName, 0l ); QString param; bool real_load = false; - if (scale_to_fit) { + if (AutoScale()) { if (!interncall) { int wid, hei; wid = QApplication::desktop()->width(); hei = QApplication::desktop()->height(); if (hei>wid) { wid = hei; } else { hei = wid; } param = QString( "Fast Shrink( 7 ) Scale( %1, %2, ScaleFree)" ).arg( wid ).arg( hei ); odebug << "Load jpeg scaled \"" << param << "\"" << oendl; iio.setParameters(param.latin1()); - image_scaled_loaded = true; + setImageScaledLoaded(true); real_load = true; } } else { - if (image_scaled_loaded||!interncall) { + if (ImageScaledLoaded()||!interncall) { odebug << "Load jpeg unscaled" << oendl; real_load = true; } - image_scaled_loaded = false; + setImageScaledLoaded(false); } if (real_load) { { QCopEnvelope( "QPE/System", "busy()" ); } _original_data = iio.read() ? iio.image() : QImage(); @@ -86,113 +119,125 @@ void ImageScrollView::loadJpeg(bool interncall) QCopEnvelope env( "QPE/System", "notBusy(QString)" ); env << "Image loaded"; } } } -void ImageScrollView::setImage( const QString& path ) { +void OImageScrollView::setImage( const QString& path ) { odebug << "load new image " << oendl; if (m_lastName == path) return; m_lastName = path; QString itype = QImage::imageFormat(m_lastName); odebug << "Image type = " << itype << oendl; if (itype == "JPEG") { - image_is_jpeg = true; + setImageIsJpeg(true); loadJpeg(); } else { { QCopEnvelope( "QPE/System", "busy()" ); } - image_is_jpeg = false; + setImageIsJpeg(false); _original_data.load(path); _original_data.convertDepth(QPixmap::defaultDepth()); _original_data.setAlphaBuffer(false); { QCopEnvelope env( "QPE/System", "notBusy(QString)" ); env << "Image loaded"; } } _image_data = QImage(); - if (first_resize_done) { + if (FirstResizeDone()) { generateImage(); } } /* should be called every time the QImage changed it content */ -void ImageScrollView::init() +void OImageScrollView::init() { odebug << "init " << oendl; /* * create the zoomer * and connect ther various signals */ _zoomer = new Opie::MM::OImageZoomer( this, "The Zoomer" ); connect(_zoomer, SIGNAL( zoomAreaRel(int,int)), this, SLOT(scrollBy(int,int)) ); + connect(_zoomer, SIGNAL( zoomArea(int,int)), + this, SLOT(center(int,int)) ); connect(this,SIGNAL(contentsMoving(int,int)), _zoomer, (SLOT(setVisiblePoint(int,int))) ); connect(this,SIGNAL(imageSizeChanged(const QSize&)), _zoomer, SLOT(setImageSize(const QSize&)) ); connect(this,SIGNAL(viewportSizeChanged(const QSize&)), _zoomer, SLOT(setViewPortSize(const QSize&)) ); viewport()->setBackgroundColor(white); setFocusPolicy(QWidget::StrongFocus); - image_scaled_loaded = false; - image_is_jpeg = false; - if (first_resize_done) { - last_rot = Rotate0; + setImageScaledLoaded(false); + setImageIsJpeg(false); + if (FirstResizeDone()) { + m_last_rot = Rotate0; generateImage(); } else if (_original_data.size().isValid()) { - if (image_fit_into(_original_data.size()) || !show_zoomer) _zoomer->hide(); + if (image_fit_into(_original_data.size()) || !ShowZoomer()) _zoomer->hide(); resizeContents(_original_data.width(),_original_data.height()); } } -void ImageScrollView::setAutoRotate(bool how) +void OImageScrollView::setAutoRotate(bool how) { /* to avoid double repaints */ - if (rotate_to_fit != how) { - rotate_to_fit = how; + if (AutoRotate() != how) { + m_states.setBit(AUTO_ROTATE,how); _image_data = QImage(); generateImage(); } } -void ImageScrollView::setAutoScale(bool how) +bool OImageScrollView::AutoRotate()const +{ + return m_states.testBit(AUTO_ROTATE); +} + +void OImageScrollView::setAutoScale(bool how) { - scale_to_fit = how; + m_states.setBit(AUTO_SCALE,how); if (!how) { - rotate_to_fit = false; + setAutoRotate(false); } _image_data = QImage(); - if (image_is_jpeg && how == false && image_scaled_loaded==true) { + if (ImageIsJpeg() && how == false && ImageScaledLoaded()==true) { loadJpeg(true); } generateImage(); } -ImageScrollView::~ImageScrollView() +bool OImageScrollView::AutoScale()const +{ + return m_states.testBit(AUTO_SCALE); +} + +OImageScrollView::~OImageScrollView() { } -void ImageScrollView::rescaleImage(int w, int h) +void OImageScrollView::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) +void OImageScrollView::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 ) @@ -300,42 +345,43 @@ void ImageScrollView::rotate_into_data(Rotation r) } } _image_data = dest; } -void ImageScrollView::generateImage() +void OImageScrollView::generateImage() { Rotation r = Rotate0; + if (_original_data.isNull()) return; { QCopEnvelope( "QPE/System", "busy()" ); } if (width()>height()&&_original_data.width()<_original_data.height() || width()<height()&&_original_data.width()>_original_data.height()) { - if (rotate_to_fit) r = Rotate90; + if (AutoRotate()) r = Rotate90; } odebug << " r = " << r << oendl; - if (scale_to_fit) { + if (AutoScale()) { 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) { + } else if (!FirstResizeDone()||r!=m_last_rot||_image_data.width()==0) { if (r==Rotate0) { _image_data = _original_data; } else { rotate_into_data(r); } - last_rot = r; + m_last_rot = r; resizeContents(_image_data.width(),_image_data.height()); } _pdata.convertFromImage(_image_data); /* @@ -344,37 +390,38 @@ void ImageScrollView::generateImage() check_zoomer(); emit imageSizeChanged( _image_data.size() ); rescaleImage( 128, 128 ); /* * move scrollbar */ - _zoomer->setGeometry( viewport()->width()-_image_data.width()/2, viewport()->height()-_image_data.height()/2, - _image_data.width()/2, _image_data.height()/2 ); - - _zoomer->setImage( _image_data ); + if (_zoomer) { + _zoomer->setGeometry( viewport()->width()-_image_data.width()/2, viewport()->height()-_image_data.height()/2, + _image_data.width()/2, _image_data.height()/2 ); + _zoomer->setImage( _image_data ); + } /* * invalidate */ _image_data=QImage(); { QCopEnvelope env( "QPE/System", "notBusy(QString)" ); env << "Image generated"; } } -void ImageScrollView::resizeEvent(QResizeEvent * e) +void OImageScrollView::resizeEvent(QResizeEvent * e) { - odebug << "ImageScrollView resizeEvent" << oendl; + odebug << "OImageScrollView resizeEvent" << oendl; QScrollView::resizeEvent(e); generateImage(); - first_resize_done = true; + setFirstResizeDone(true); emit viewportSizeChanged( viewport()->size() ); } -void ImageScrollView::keyPressEvent(QKeyEvent * e) +void OImageScrollView::keyPressEvent(QKeyEvent * e) { if (!e) return; int dx = horizontalScrollBar()->lineStep(); int dy = verticalScrollBar()->lineStep(); if (e->key()==Qt::Key_Right) { scrollBy(dx,0); @@ -391,13 +438,13 @@ void ImageScrollView::keyPressEvent(QKeyEvent * e) } else { e->ignore(); } QScrollView::keyPressEvent(e); } -void ImageScrollView::drawContents(QPainter * p, int clipx, int clipy, int clipw, int cliph) +void OImageScrollView::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; @@ -424,13 +471,13 @@ void ImageScrollView::drawContents(QPainter * p, int clipx, int clipy, int clipw p->fillRect(clipx,clipy,clipw,cliph,white); } p->drawPixmap(clipx,clipy,_pdata,x,y,w,h); } /* using the real geometry points and not the translated points is wanted! */ -void ImageScrollView::viewportMouseMoveEvent(QMouseEvent* e) +void OImageScrollView::viewportMouseMoveEvent(QMouseEvent* e) { odebug << "Move X and Y " << e->x() << " " << e->y() << oendl; int mx, my; mx = e->x(); my = e->y(); if (_mouseStartPosX!=-1 && _mouseStartPosY!=-1) { @@ -453,48 +500,87 @@ void ImageScrollView::viewportMouseMoveEvent(QMouseEvent* e) scrollBy(diffx,diffy); } _mouseStartPosX=mx; _mouseStartPosY=my; } -void ImageScrollView::contentsMousePressEvent ( QMouseEvent * e) +void OImageScrollView::contentsMousePressEvent ( QMouseEvent * e) { odebug << " X and Y " << e->x() << " " << e->y() << oendl; /* this marks the beginning of a possible mouse move. Due internal reasons of QT the geometry values here may real differ from that set in MoveEvent (I don't know why). For getting them in real context, we use the first move-event to set the start position ;) */ _mouseStartPosX = -1; _mouseStartPosY = -1; } -void ImageScrollView::setDestructiveClose() { +void OImageScrollView::setDestructiveClose() { WFlags fl = getWFlags(); /* clear it just in case */ fl &= ~WDestructiveClose; fl |= WDestructiveClose; setWFlags( fl ); } -bool ImageScrollView::image_fit_into(const QSize&s ) +bool OImageScrollView::image_fit_into(const QSize&s ) { if (s.width()>width()||s.height()>height()) { return false; } return true; } -void ImageScrollView::setShowZoomer(bool how) +void OImageScrollView::setShowZoomer(bool how) { - show_zoomer = how; + m_states.setBit(SHOW_ZOOMER,how); check_zoomer(); } -void ImageScrollView::check_zoomer() +bool OImageScrollView::ShowZoomer()const +{ + return m_states.testBit(SHOW_ZOOMER); +} + +void OImageScrollView::check_zoomer() { - if ( (!show_zoomer||image_fit_into(_pdata.size()) ) && _zoomer->isVisible()) { + if (!_zoomer) return; + if ( (!ShowZoomer()||image_fit_into(_pdata.size()) ) && _zoomer->isVisible()) { _zoomer->hide(); - } else if ( show_zoomer && !image_fit_into(_pdata.size()) && _zoomer->isHidden()){ + } else if ( ShowZoomer() && !image_fit_into(_pdata.size()) && _zoomer->isHidden()){ _zoomer->show(); } } + +bool OImageScrollView::FirstResizeDone()const +{ + return m_states.testBit(FIRST_RESIZE_DONE); +} + +void OImageScrollView::setFirstResizeDone(bool how) +{ + m_states.setBit(FIRST_RESIZE_DONE,how); +} + +bool OImageScrollView::ImageIsJpeg()const +{ + return m_states.testBit(IMAGE_IS_JPEG); +} + +void OImageScrollView::setImageIsJpeg(bool how) +{ + m_states.setBit(IMAGE_IS_JPEG,how); +} + +bool OImageScrollView::ImageScaledLoaded()const +{ + return m_states.testBit(IMAGE_SCALED_LOADED); +} + +void OImageScrollView::setImageScaledLoaded(bool how) +{ + m_states.setBit(IMAGE_SCALED_LOADED,how); +} + +} // namespace MM +} // namespace Opie |