helpWidget now nearly perfect :D

added Tabs and search functionality

git-svn-id: http://www.openflipper.org/svnrepo/OpenFlipper/branches/Free@3643 383ad7c9-94d9-4d36-a494-682f7c89f535

widgets/coreWidget/Help.cc

@@ -12,12 +12,12 @@
 //  it under the terms of the GNU Lesser General Public License as published by
 //  the Free Software Foundation, either version 3 of the License, or
 //  (at your option) any later version.
-// 
+//
 //  OpenFlipper is distributed in the hope that it will be useful,
 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 //  GNU Lesser General Public License for more details.
-// 
+//
 //  You should have received a copy of the GNU Lesser General Public License
 //  along with OpenFlipper.  If not, see <http://www.gnu.org/licenses/>.
 //
@@ -45,34 +45,50 @@
 
 #include <OpenFlipper/common/GlobalOptions.hh>
 
-//== IMPLEMENTATION ========================================================== 
+//== IMPLEMENTATION ==========================================================
 
 
 
 void CoreWidget::showHelpBrowserUser( ) {
-  
+
   if ( OpenFlipper::Options::nogui() )
     return;
-  
+
   if ( helpBrowserUser_ == 0 ) {
     helpBrowserUser_ = new HelpWidget( this ,true);
   }
-  
+
+  //show the widget centered
+  QPoint center;
+  center.setX( x() + width() / 2 );
+  center.setY( y() + height() / 2 );
+
+  helpBrowserUser_->setGeometry(center.x() - helpBrowserUser_->width() / 2,
+                              center.y() - helpBrowserUser_->height()/ 2, helpBrowserUser_->width(), helpBrowserUser_->height());
+
   helpBrowserUser_->show();
-  
+
 }
 
 void CoreWidget::showHelpBrowserDeveloper( ) {
-  
+
   if ( OpenFlipper::Options::nogui() )
     return;
-  
+
   if ( helpBrowserDeveloper_ == 0 ) {
     helpBrowserDeveloper_ = new HelpWidget( this ,false);
   }
-  
+
+  //show the widget centered
+  QPoint center;
+  center.setX( x() + width() / 2 );
+  center.setY( y() + height() / 2 );
+
+  helpBrowserDeveloper_->setGeometry(center.x() - helpBrowserDeveloper_->width() / 2,
+                              center.y() - helpBrowserDeveloper_->height()/ 2, helpBrowserDeveloper_->width(), helpBrowserDeveloper_->height());
+
   helpBrowserDeveloper_->show();
-  
+
 }
- 
+
 //=============================================================================

widgets/helpBrowser/findEdit.cc

+#include "findEdit.hh"
+
+#include <QKeyEvent>
+
+findEdit::findEdit(QWidget* parent) : QLineEdit(parent)
+{
+  connect(this, SIGNAL(textEdited(const QString&)), this, SLOT(slotTextEdited(const QString&)) );
+}
+
+void findEdit::keyPressEvent(QKeyEvent* event)
+{
+  if (event->key() == Qt::Key_Enter || event->key() == Qt::Key_Return)
+    emit find();
+  else if (event->key() == Qt::Key_F3)
+    emit find();
+  else if (event->key() == Qt::Key_Escape)
+    emit close();
+  else
+    QLineEdit::keyPressEvent(event);
+}
+
+void findEdit::slotTextEdited(const QString&)
+{
+  emit textEdited();
+}
+

widgets/helpBrowser/findEdit.hh

+#ifndef FINDEDIT_HH
+#define FINDEDIT_HH
+
+#include <QLineEdit>
+
+class findEdit : public QLineEdit
+{
+  Q_OBJECT
+
+  signals:
+    void find();
+    void close();
+    void textEdited();
+  public:
+    findEdit(QWidget *parent = 0);
+
+  protected:
+    void keyPressEvent( QKeyEvent* event );
+  private slots:
+    void slotTextEdited(const QString& /*text*/);
+};
+
+
+#endif //FINDEDIT_HH

widgets/helpBrowser/helpWidget.cc

@@ -3,7 +3,6 @@
 
 #include <OpenFlipper/common/GlobalOptions.hh>
 
-#include <QtWebKit> 
 #include <iostream>
 
 HelpWidget::HelpWidget(QWidget *parent, bool _user)
@@ -14,73 +13,111 @@ HelpWidget::HelpWidget(QWidget *parent, bool _user)
   QString iconPath = OpenFlipper::Options::iconDirStr() + OpenFlipper::Options::dirSeparator();
 
   //create toolbar
-  QAction* action = toolBar->addAction(QIcon(iconPath + "arrow-left.png"), "Back");
-  connect(action, SIGNAL(triggered()), webView, SLOT(back()));
-  action = toolBar->addAction(QIcon(iconPath + "arrow-right.png"), "Forward");
-  connect(action, SIGNAL(triggered()), webView, SLOT(forward()));
-  action = toolBar->addAction(QIcon(iconPath + "go-home.png"), "Home");
+  back_ = toolBar->addAction(QIcon(iconPath + "arrow-left.png"), "Back");
+  forward_ = toolBar->addAction(QIcon(iconPath + "arrow-right.png"), "Forward");
+  QAction* action = toolBar->addAction(QIcon(iconPath + "go-home.png"), "Home");
   connect(action, SIGNAL(triggered()), this,    SLOT(goHome()));
+  toolBar->addSeparator();
+  action = toolBar->addAction(QIcon(iconPath + "edit-find.png"), "Find text");
+  connect(action, SIGNAL(triggered()), this,    SLOT(showFind()));
+
+  //finding
+  initFindFrame();
+
+  //splitter position
+  QList<int> wsizes( splitter->sizes() );
+  wsizes[0] = 30;
+  wsizes[1] = 70;
+  splitter->setSizes(wsizes);
+
+  //tab buttons
+  QPushButton* closeTabButton = new QPushButton();
+  QPushButton* addTabButton = new QPushButton();
+  closeTabButton->setIcon(QIcon(iconPath+"tab-close.png"));
+  addTabButton->setIcon(QIcon(iconPath+"tab-new.png"));
+  addTabButton->setMaximumSize(26,26);
+
+  tabs->setCornerWidget(closeTabButton, Qt::TopRightCorner);
+  tabs->setCornerWidget(addTabButton, Qt::TopLeftCorner);
+  connect( closeTabButton, SIGNAL(clicked()), this, SLOT(closeCurrentTab()) );
+  connect( addTabButton, SIGNAL(clicked()), this, SLOT(duplicateCurrentTab()) );
 
   QIcon icon;
   icon.addFile(OpenFlipper::Options::iconDirStr()+OpenFlipper::Options::dirSeparator()+"window-close.png");
   actionClose->setIcon(icon);
-  
-  baseDir_ = OpenFlipper::Options::applicationDirStr() + 
+
+  baseDir_ = OpenFlipper::Options::applicationDirStr() +
              OpenFlipper::Options::dirSeparator() + "Docs";
-      
+
   if ( _user ) {
      baseDir_ += OpenFlipper::Options::dirSeparator() + "User" +
                  OpenFlipper::Options::dirSeparator();
-     
+
      startFile_ = baseDir_ + "OpenFlipperUserDoc.html";
-     
+
   } else {
      baseDir_ += OpenFlipper::Options::dirSeparator() + "Developer" +
                  OpenFlipper::Options::dirSeparator();
-     
+
      startFile_ = baseDir_ + "OpenFlipperDeveloperDoc.html";
   }
-  
-  connect(webView, SIGNAL( loadFinished(bool) ), this, SLOT( loadFinished(bool) ));
 
-  webView->load( QUrl(startFile_) );
+  currentView_ = new webView();
+
+  tabs->removeTab(0);
+  newTab(currentView_);
+
+  setConnections();
 
-  webView->history()->clear();
+  currentView_->load( QUrl(startFile_) );
 
   connect( actionClose , SIGNAL(triggered() ) , this, SLOT(hide()) );
-  connect( closeButton , SIGNAL(clicked()   ) , this, SLOT(hide()) );
 
   generateTree();
   tree->setHeaderHidden( true );
 
+  tabs->setContextMenuPolicy( Qt::CustomContextMenu );
+  tree->setContextMenuPolicy( Qt::CustomContextMenu );
+
+  contextMenu_ = new QMenu();
+
   connect( tree, SIGNAL(itemClicked(QTreeWidgetItem*, int)), this, SLOT(treeClicked(QTreeWidgetItem*,int)) );
+  connect( tree, SIGNAL(customContextMenuRequested (const QPoint &)), this, SLOT(showContextMenu(const QPoint &)));
+  connect( tabs, SIGNAL(customContextMenuRequested (const QPoint &)), this, SLOT(showContextMenu(const QPoint &)));
+  connect( tabs, SIGNAL(currentChanged(int)), this, SLOT(tabChanged(int)) );
 }
 
-void HelpWidget::loadFinished(bool ok)
+///update the signals/slots which are only active on the visible webView
+void HelpWidget::setConnections()
 {
+  back_->disconnect();
+  connect(back_, SIGNAL(triggered()), currentView_, SLOT(back()));
+  forward_->disconnect();
+  connect(forward_, SIGNAL(triggered()), currentView_, SLOT(forward()));
+}
 
-  if (ok)
-    tabWidget->setTabText(tabWidget->currentIndex(), webView->page()->mainFrame()->title());
+void HelpWidget::loadFinished(bool)
+{
 
 // std::cerr << "history " << webView->history()->items().count() << std::endl;
-// 
+//
 //   if ( webView->url().path() != QUrl(startFile_).path() || !ok )
 //     return;
-// 
+//
 //   QDir docDir = QDir(baseDir_);
 //   QStringList plugins = docDir.entryList ( QDir::AllDirs | QDir::NoDotAndDotDot);
-// 
+//
 //   QString pluginHtml;
-//   
-//   for ( int i = 0 ; i < plugins.size(); ++i ) 
+//
+//   for ( int i = 0 ; i < plugins.size(); ++i )
 //     if ( plugins[i].contains("Plugin-") )
 //       pluginHtml.append( "<a href=\"" + plugins[i] +  OpenFlipper::Options::dirSeparator()
 //                                           + "index.html\">" + plugins[i] + "</a><br>" );
-//   
+//
 //   QString source =  webView->page()->currentFrame()->toHtml();
-// 
+//
 //   source = source.replace("REPLACEWITHPLUGINLINKS",pluginHtml);
-// 
+//
 //   webView->page()->currentFrame()->setHtml(source, QUrl(baseDir_));
 
 }
@@ -88,7 +125,7 @@ void HelpWidget::loadFinished(bool ok)
 /// go to home dir
 void HelpWidget::goHome()
 {
-  webView->load( QUrl(startFile_) );
+  currentView_->load( QUrl(startFile_) );
 }
 
 ///generate the documentation tree
@@ -123,7 +160,7 @@ void HelpWidget::generateTree(){
       else{
 
         currentItem = new QTreeWidgetItem(QString(title + "," + names.first()).split(","));
-        
+
         if (parents.first() == 0)
           tree->addTopLevelItem( currentItem );
         else
@@ -176,7 +213,7 @@ QString HelpWidget::getTitle(QString htmlFile){
 }
 
 /// the user clicked on an item in the treeWidget
-void HelpWidget::treeClicked(QTreeWidgetItem* item, int column ){
+void HelpWidget::treeClicked(QTreeWidgetItem* item, int /*column*/ ){
   QTreeWidgetItem* parent = item->parent();
 
   QString path = baseDir_;
@@ -185,6 +222,224 @@ void HelpWidget::treeClicked(QTreeWidgetItem* item, int column ){
     path += parent->text(1) + OpenFlipper::Options::dirSeparator();
     parent = parent->parent();
   }
-    
-  webView->load( QUrl(path + item->text(1) + OpenFlipper::Options::dirSeparator() + "index.html") );
-} 
\ No newline at end of file
+
+  currentView_->load( QUrl(path + item->text(1) + OpenFlipper::Options::dirSeparator() + "index.html") );
+}
+
+///the url changed
+void HelpWidget::urlChanged(const QUrl& /*url*/){
+
+  back_->setEnabled( currentView_->history()->canGoBack() );
+  forward_->setEnabled( currentView_->history()->canGoForward() );
+}
+
+/// add a new Tab to the Tabs
+void HelpWidget::newTab(QWebView* _webView){
+  webView* view = dynamic_cast< webView* > (_webView);
+
+  connect(view, SIGNAL(titleChanged(const QString&)), this, SLOT(titleChanged(const QString&)));
+  connect(view, SIGNAL(windowCreated(QWebView*)), this, SLOT(newTab(QWebView*)) );
+
+  connect(view, SIGNAL( loadFinished(bool) ), this, SLOT( loadFinished(bool) ));
+  connect(view, SIGNAL( find() ), this, SLOT( showFind() ));
+  connect(view, SIGNAL( findNext() ), this, SLOT( findNext1() ));
+
+  connect(view, SIGNAL(urlChanged(const QUrl &)), this, SLOT(urlChanged(const QUrl &)) );
+
+  tabs->addTab(view, "");
+}
+
+/// the title of one of the tabs changed
+void HelpWidget::titleChanged(const QString & title)
+{
+  for(int i=0; i < tabs->count(); i++)
+    if (tabs->widget(i) == sender())
+      tabs->setTabText(i, title);
+}
+
+/// current tab changed
+void HelpWidget::tabChanged(int _index)
+{
+  currentView_ = dynamic_cast< webView* > (tabs->widget(_index));
+  setConnections();
+
+  back_->setEnabled( currentView_->history()->canGoBack() );
+  forward_->setEnabled( currentView_->history()->canGoForward() );
+}
+
+/// close the current tab
+void HelpWidget::closeCurrentTab()
+{
+  if (tabs->count() > 1)
+    tabs->removeTab( tabs->currentIndex() );
+}
+
+/// add a duplicate of the current Tab to the TabWidget
+void HelpWidget::duplicateCurrentTab()
+{
+  webView* newView = new webView();
+
+  newView->load( currentView_->url() );
+
+  newTab(newView);
+
+  tabs->setCurrentIndex(tabs->count()-1);
+}
+
+//----------------------------------------------------------------------------
+// Finding
+//----------------------------------------------------------------------------
+
+///initialize the widgets corresponding to finding
+void HelpWidget::initFindFrame()
+{
+  findText_ = new findEdit();
+
+  //set icons
+  QString iconPath = OpenFlipper::Options::iconDirStr() + OpenFlipper::Options::dirSeparator();
+
+  findClose->setIcon( QIcon(iconPath + "application-exit.png") );
+  findPrev->setIcon(  QIcon(iconPath + "arrow-left.png") );
+  findNext->setIcon(  QIcon(iconPath + "arrow-right.png") );
+
+  //connect signals
+  connect(findText_, SIGNAL(find()), this, SLOT(findNext1()));
+  connect(findText_, SIGNAL(textEdited()), this, SLOT(findNext1()));
+  connect(findText_, SIGNAL(close()), findFrame, SLOT(hide()));
+  connect(findClose, SIGNAL(clicked()), findFrame, SLOT(hide()));
+  connect(findNext, SIGNAL(clicked()), this, SLOT(findNext1()));
+  connect(findPrev, SIGNAL(clicked()), this, SLOT(findPrev1()));
+
+  //set layout
+  QHBoxLayout *layout = new QHBoxLayout;
+
+  layout->addWidget( findClose );
+  layout->addWidget( findText_ );
+  layout->addWidget( findPrev );
+  layout->addWidget( findNext );
+  layout->addWidget( findSensitive );
+  layout->addStretch();
+
+  findFrame->setLayout(layout);
+
+  findFrame->hide();
+}
+
+///show the find frame under the current page
+void HelpWidget::showFind(){
+  findFrame->setVisible( true );
+  findText_->selectAll();
+  findText_->setFocus(Qt::OtherFocusReason);
+}
+
+/// find the next element in the text that fits the search term
+void HelpWidget::findNext1()
+{
+  if (findText_->text() == ""){
+    //TODO do something that clears the selection
+  }
+
+  if ( findSensitive->isChecked() )
+    currentView_->findText( findText_->text() , QWebPage::FindCaseSensitively | QWebPage::FindWrapsAroundDocument);
+  else
+    currentView_->findText( findText_->text() , QWebPage::FindWrapsAroundDocument);
+}
+
+/// find the previous element in the text that fits the search term
+void HelpWidget::findPrev1()
+{
+  if ( findSensitive->isChecked() )
+    currentView_->findText( findText_->text() ,
+                           QWebPage::FindBackward | QWebPage::FindCaseSensitively | QWebPage::FindWrapsAroundDocument);
+  else
+    currentView_->findText( findText_->text() , QWebPage::FindBackward | QWebPage::FindWrapsAroundDocument);
+}
+
+//----------------------------------------------------------------------------
+// Context Menu
+//----------------------------------------------------------------------------
+
+///show the context menu
+void HelpWidget::showContextMenu(const QPoint & _pos)
+{
+
+  QObject* treeObj = dynamic_cast< QObject* > (tree);
+
+  if(sender() == treeObj){
+
+    //sender was the treeWidget
+
+    lastContextMenu_ = tree->mapToGlobal(_pos);
+    contextMenu_->clear();
+    QAction* open = contextMenu_->addAction("Open");
+    QAction* openNew = contextMenu_->addAction("Open in new tab");
+    connect(open, SIGNAL(triggered()), this, SLOT(contextOpenTab()));
+    connect(openNew, SIGNAL(triggered()), this, SLOT(contextOpenNewTab()));
+
+  }else{
+
+    //sender was the tabWidget
+
+    lastContextMenu_ = tabs->mapToGlobal(_pos);
+
+    //first check if the tabBar was clicked
+    QWidget* w = tabs->childAt(tabs->mapFromGlobal(lastContextMenu_));
+
+    if(w == 0) return;
+
+    QTabBar* tabBar = dynamic_cast< QTabBar* > (w);
+
+    if (tabBar == 0) return;
+
+    int id = tabBar->tabAt( tabBar->mapFromGlobal(lastContextMenu_) );
+
+    if (id == -1) return;
+
+    //set up the menu
+    contextMenu_->clear();
+    QAction* close = contextMenu_->addAction("Close Tab");
+    connect(close, SIGNAL(triggered()), this, SLOT(contextCloseTab()));
+  }
+
+  //finally show the menu
+  contextMenu_->popup(lastContextMenu_);
+
+}
+
+///open content in current tab initiated by contextMenu
+void HelpWidget::contextOpenTab()
+{
+  QTreeWidgetItem* item = tree->itemAt(tree->mapFromGlobal(lastContextMenu_));
+
+  if (item != 0)
+    treeClicked(item, 0 );
+}
+
+///open content in new tab initiated by contextMenu
+void HelpWidget::contextOpenNewTab()
+{
+  QTreeWidgetItem* item = tree->itemAt(tree->mapFromGlobal(lastContextMenu_));
+
+  if (item != 0){
+    duplicateCurrentTab();
+    treeClicked(item, 0 );
+  }
+
+}
+
+///close tab initiated by contextMenu
+void HelpWidget::contextCloseTab()
+{
+  QWidget* w = tabs->childAt(tabs->mapFromGlobal(lastContextMenu_));
+
+  if(w != 0){
+    QTabBar* tabBar = dynamic_cast< QTabBar* > (w);
+
+    if (tabBar != 0){
+      int id = tabBar->tabAt( tabBar->mapFromGlobal(lastContextMenu_) );
+      if (id != -1)
+        tabs->removeTab( id );
+    }
+  }
+}
+