zoomer widget better integrated, size of it depends on the size of the displayed image,

may switched off by user and so on.

4 files changed, 56 insertions, 9 deletions

diff --git a/noncore/graphics/opie-eye/gui/imagescrollview.cpp b/noncore/graphics/opie-eye/gui/imagescrollview.cpp
index 5b12258..2f16d82 100644
--- a/noncore/graphics/opie-eye/gui/imagescrollview.cpp
+++ b/noncore/graphics/opie-eye/gui/imagescrollview.cpp
@@ -1,40 +1,40 @@
 #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),m_lastName("")
+     rotate_to_fit(true),show_zoomer(true),first_resize_done(false),m_lastName("")
 {
     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),first_resize_done(false),m_lastName("")
+    rotate_to_fit(rfit),show_zoomer(true),first_resize_done(false),m_lastName("")
 {
     _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),first_resize_done(false),m_lastName("")
+    rotate_to_fit(rfit),show_zoomer(true),first_resize_done(false),m_lastName("")
 {
     init();
     setImage(img);
 }
 
 void ImageScrollView::setImage(const QImage&img)
 {
     _image_data = QImage();
     _original_data=img;
     _original_data.convertDepth(QPixmap::defaultDepth());
     _original_data.setAlphaBuffer(false);
     m_lastName = "";
@@ -71,26 +71,26 @@ void ImageScrollView::init()
     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);
     if (first_resize_done) {
         last_rot = Rotate0;
         generateImage();
-        odebug << "reinit display " << oendl;
     } else if (_original_data.size().isValid()) {
+        if (image_fit_into(_original_data.size()) || !show_zoomer) _zoomer->hide();
         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();
     }
@@ -257,50 +257,53 @@ void ImageScrollView::generateImage()
         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());
     }
     _pdata.convertFromImage(_image_data);
+    
 
     /*
      * update the zoomer
      */
+    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 );
-
     /*
      * invalidate
      */
     _image_data=QImage();
 }
 
 void ImageScrollView::resizeEvent(QResizeEvent * e)
 {
     odebug << "ImageScrollView resizeEvent" << oendl;
     QScrollView::resizeEvent(e);
     generateImage();
     first_resize_done = true;
     emit viewportSizeChanged( viewport()->size() );
 
-   /*
-    * move scrollbar
-    */
-    _zoomer->setGeometry( viewport()->width()-100, viewport()->height()-50, 100, 50 );
 }
 
 void ImageScrollView::keyPressEvent(QKeyEvent * e)
 {
     if (!e) return;
     int dx = horizontalScrollBar()->lineStep();
     int dy = verticalScrollBar()->lineStep();
     if (e->key()==Qt::Key_Right) {
         scrollBy(dx,0);
         e->accept();
     } else if (e->key()==Qt::Key_Left) {
         scrollBy(0-dx,0);
@@ -389,12 +392,35 @@ void ImageScrollView::contentsMousePressEvent ( QMouseEvent * e)
     */
     _mouseStartPosX = -1;
     _mouseStartPosY = -1;
 }
 
 void ImageScrollView::setDestructiveClose() {
     WFlags fl = getWFlags();
     /* clear it just in case */
     fl &= ~WDestructiveClose;
     fl |= WDestructiveClose;
     setWFlags( fl );
 }
+
+bool ImageScrollView::image_fit_into(const QSize&s )
+{
+    if (s.width()>width()||s.height()>height()) {
+        return false;
+    }
+    return true;
+}
+
+void ImageScrollView::setShowZoomer(bool how)
+{
+    show_zoomer = how;
+    check_zoomer();
+}
+
+void ImageScrollView::check_zoomer()
+{
+    if ( (!show_zoomer||image_fit_into(_pdata.size()) ) && _zoomer->isVisible()) {
+        _zoomer->hide();
+    } else if ( show_zoomer && !image_fit_into(_pdata.size()) && _zoomer->isHidden()){
+        _zoomer->show();
+    }
+}
diff --git a/noncore/graphics/opie-eye/gui/imagescrollview.h b/noncore/graphics/opie-eye/gui/imagescrollview.h
index 1b25103..e209dfb 100644
--- a/noncore/graphics/opie-eye/gui/imagescrollview.h
+++ b/noncore/graphics/opie-eye/gui/imagescrollview.h
@@ -19,24 +19,25 @@ class ImageScrollView:public QScrollView
 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();
 
     virtual void setImage(const QImage&);
     virtual void setImage( const QString& path );
     virtual void setDestructiveClose();
 
     virtual void setAutoRotate(bool);
     virtual void setAutoScale(bool);
+    virtual void setShowZoomer(bool);
 
     enum  Rotation {
         Rotate0,
         Rotate90,
         Rotate180,
         Rotate270
     };
 
 signals:
     void sig_return();
     void imageSizeChanged( const QSize& );
     void viewportSizeChanged( const QSize& );
@@ -45,27 +46,30 @@ protected:
     virtual void drawContents ( QPainter * p, int clipx, int clipy, int clipw, int cliph );
     void init();
 
     Opie::MM::OImageZoomer *_zoomer;
     QImage _image_data;
     QImage _original_data;
     QPixmap _pdata;
 
     int _mouseStartPosX,_mouseStartPosY;
 
     bool scale_to_fit;
     bool rotate_to_fit;
+    bool show_zoomer;
     bool first_resize_done;
     Rotation last_rot;
     QString m_lastName;
     virtual void rescaleImage(int w, int h);
 
     virtual void rotate_into_data(Rotation r);
     virtual void generateImage();
+    bool image_fit_into(const QSize&s);
+    void check_zoomer();
 
 protected slots:
     virtual void viewportMouseMoveEvent(QMouseEvent* e);
     virtual void contentsMousePressEvent ( QMouseEvent * e);
     virtual void resizeEvent(QResizeEvent * e);
     virtual void keyPressEvent(QKeyEvent * e);
 };
 #endif
diff --git a/noncore/graphics/opie-eye/gui/mainwindow.cpp b/noncore/graphics/opie-eye/gui/mainwindow.cpp
index 3650493..ef23f79 100644
--- a/noncore/graphics/opie-eye/gui/mainwindow.cpp
+++ b/noncore/graphics/opie-eye/gui/mainwindow.cpp
@@ -97,30 +97,44 @@ PMainWindow::PMainWindow(QWidget* wid, const char* name, WFlags style)
     rotateButton->setToggleButton(true);
     rotateButton->setOn(true);
     connect(rotateButton,SIGNAL(toggled(bool)),this,SLOT(slotRotateToggled(bool)));
     autoRotate = true;
 
     btn = new QToolButton(bar);
     btn->setIconSet( Resource::loadIconSet( "1to1" ) );
     btn->setToggleButton(true);
     btn->setOn(false);
     connect(btn,SIGNAL(toggled(bool)),this,SLOT(slotScaleToggled(bool)));
     autoScale = true;
 
+    btn = new QToolButton(bar);
+    btn->setIconSet( Resource::loadIconSet( "mag" ) );
+    btn->setToggleButton(true);
+    btn->setOn(true);
+    connect(btn,SIGNAL(toggled(bool)),this,SLOT(slotZoomerToggled(bool)));
+    zoomerOn = true;
 }
 
 PMainWindow::~PMainWindow() {
     odebug << "Shutting down" << oendl;
 }
 
+void PMainWindow::slotZoomerToggled(bool how)
+{
+    zoomerOn = how;
+    if (m_disp) {
+        m_disp->setShowZoomer(zoomerOn);
+    }
+}
+
 void PMainWindow::slotRotateToggled(bool how)
 {
     autoRotate = how;
     if (m_disp) {
         m_disp->setAutoRotate(how);
     }
 }
 
 void PMainWindow::slotScaleToggled(bool how)
 {
     autoScale = !how;
     if (m_disp) {
@@ -222,24 +236,25 @@ void PMainWindow::initT( const char* name, T** ptr, int id) {
             this,SLOT(slotReturn()));
 
 }
 void PMainWindow::initInfo() {
     initT<imageinfo>( "Image Info", &m_info, ImageInfo );
     connect(m_info,SIGNAL(dispImage(const QString&)),this,SLOT(slotDisplay(const QString&)));
 }
 void PMainWindow::initDisp() {
     initT<ImageView>( "Image ScrollView", &m_disp, ImageDisplay );
     if (m_disp) {
         m_disp->setAutoScale(autoScale);
         m_disp->setAutoRotate(autoRotate);
+        m_disp->setShowZoomer(zoomerOn);
         connect(m_disp,SIGNAL(dispImageInfo(const QString&)),this,SLOT(slotShowInfo(const QString&)));
     }
 }
 
 /**
  * With big Screen the plan could be to 'detach' the image
  * window if visible and to create a ne wone
  * init* already supports it but I make no use of it for
  * now. We set filename and raise
  *
  * ### FIXME and talk to alwin
  */
diff --git a/noncore/graphics/opie-eye/gui/mainwindow.h b/noncore/graphics/opie-eye/gui/mainwindow.h
index 59dba30..e9b16d0 100644
--- a/noncore/graphics/opie-eye/gui/mainwindow.h
+++ b/noncore/graphics/opie-eye/gui/mainwindow.h
@@ -32,39 +32,41 @@ public:
     PMainWindow(QWidget*, const char*, WFlags );
     ~PMainWindow();
 
 signals:
     void configChanged();
 
 public slots:
     void slotShowInfo( const QString& inf );
     void slotDisplay( const QString& inf );
     void slotReturn();
     void slotRotateToggled(bool);
     void slotScaleToggled(bool);
+    void slotZoomerToggled(bool);
     void setDocument( const QString& );
 
 protected:
     void raiseIconView();
     void closeEvent( QCloseEvent* );
 
 private:
     template<class T>  void initT( const char* name, T**, int );
     void initInfo();
     void initDisp();
 
 private:
     Opie::Core::OConfig *m_cfg;
     Opie::Ui::OWidgetStack *m_stack;
     PIconView* m_view;
     imageinfo *m_info;
     ImageView *m_disp;
     bool autoRotate;
     bool autoScale;
+    bool zoomerOn;
     QToolButton*rotateButton;
 
 
 private slots:
     void slotConfig();
 };
 
 #endif