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authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-07-10 15:24:15 -0500
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-07-10 15:24:15 -0500
commitbd0f3345a938b35ce6a12f6150373b0955b8dd12 (patch)
tree7a520322212d48ebcb9fbe1087e7fca28b76185c /examples/helpviewer
downloadqt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.tar.gz
qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.zip
Add Qt3 development HEAD version
Diffstat (limited to 'examples/helpviewer')
-rw-r--r--examples/helpviewer/back.xpm27
-rw-r--r--examples/helpviewer/forward.xpm28
-rw-r--r--examples/helpviewer/helpviewer.doc28
-rw-r--r--examples/helpviewer/helpviewer.pro11
-rw-r--r--examples/helpviewer/helpwindow.cpp315
-rw-r--r--examples/helpviewer/helpwindow.h63
-rw-r--r--examples/helpviewer/home.xpm27
-rw-r--r--examples/helpviewer/main.cpp41
8 files changed, 540 insertions, 0 deletions
diff --git a/examples/helpviewer/back.xpm b/examples/helpviewer/back.xpm
new file mode 100644
index 0000000..7dc5b72
--- /dev/null
+++ b/examples/helpviewer/back.xpm
@@ -0,0 +1,27 @@
+/* XPM */
+/* Drawn by Mark Donohoe for the K Desktop Environment */
+/* See http://www.kde.org */
+static char*back[]={
+"16 16 5 1",
+"# c #000000",
+"a c #ffffff",
+"c c #808080",
+"b c #c0c0c0",
+". c None",
+"................",
+".......#........",
+"......##........",
+".....#a#........",
+"....#aa########.",
+"...#aabaaaaaaa#.",
+"..#aabbbbbbbbb#.",
+"...#abbbbbbbbb#.",
+"...c#ab########.",
+"....c#a#ccccccc.",
+".....c##c.......",
+"......c#c.......",
+".......cc.......",
+"........c.......",
+"................",
+"......................"};
+
diff --git a/examples/helpviewer/forward.xpm b/examples/helpviewer/forward.xpm
new file mode 100644
index 0000000..2ed8134
--- /dev/null
+++ b/examples/helpviewer/forward.xpm
@@ -0,0 +1,28 @@
+/* XPM */
+/* Drawn by Mark Donohoe for the K Desktop Environment */
+/* See http://www.kde.org */
+static char*forward[]={
+"16 16 5 1",
+"# c #000000",
+"a c #ffffff",
+"c c #808080",
+"b c #c0c0c0",
+". c None",
+"................",
+"................",
+".........#......",
+".........##.....",
+".........#a#....",
+"..########aa#...",
+"..#aaaaaaabaa#..",
+"..#bbbbbbbbbaa#.",
+"..#bbbbbbbbba#..",
+"..########ba#c..",
+"..ccccccc#a#c...",
+"........c##c....",
+"........c#c.....",
+"........cc......",
+"........c.......",
+"................",
+"................"};
+
diff --git a/examples/helpviewer/helpviewer.doc b/examples/helpviewer/helpviewer.doc
new file mode 100644
index 0000000..b3d344b
--- /dev/null
+++ b/examples/helpviewer/helpviewer.doc
@@ -0,0 +1,28 @@
+/*
+*/
+/*! \page helpviewer-example.html
+
+ \ingroup examples
+ \title Simple HTML Help Browser
+
+ This example implements a simple HTML help browser using
+ Qt's richtext capabilities.
+
+ <hr>
+
+ Header file:
+
+ \include helpviewer/helpwindow.h
+
+ <hr>
+
+ Implementation:
+
+ \include helpviewer/helpwindow.cpp
+
+ <hr>
+
+ Main:
+
+ \include helpviewer/main.cpp
+*/
diff --git a/examples/helpviewer/helpviewer.pro b/examples/helpviewer/helpviewer.pro
new file mode 100644
index 0000000..580a604
--- /dev/null
+++ b/examples/helpviewer/helpviewer.pro
@@ -0,0 +1,11 @@
+TEMPLATE = app
+TARGET = helpviewer
+
+CONFIG += qt warn_on release
+DEPENDPATH = ../../include
+
+REQUIRES = large-config
+
+HEADERS = helpwindow.h
+SOURCES = helpwindow.cpp \
+ main.cpp
diff --git a/examples/helpviewer/helpwindow.cpp b/examples/helpviewer/helpwindow.cpp
new file mode 100644
index 0000000..2e0a9ea
--- /dev/null
+++ b/examples/helpviewer/helpwindow.cpp
@@ -0,0 +1,315 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
+**
+** This file is part of an example program for Qt. This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#include "helpwindow.h"
+#include <qstatusbar.h>
+#include <qpixmap.h>
+#include <qpopupmenu.h>
+#include <qmenubar.h>
+#include <qtoolbar.h>
+#include <qtoolbutton.h>
+#include <qiconset.h>
+#include <qfile.h>
+#include <qtextstream.h>
+#include <qstylesheet.h>
+#include <qmessagebox.h>
+#include <qfiledialog.h>
+#include <qapplication.h>
+#include <qcombobox.h>
+#include <qevent.h>
+#include <qlineedit.h>
+#include <qobjectlist.h>
+#include <qfileinfo.h>
+#include <qfile.h>
+#include <qdatastream.h>
+#include <qprinter.h>
+#include <qsimplerichtext.h>
+#include <qpainter.h>
+#include <qpaintdevicemetrics.h>
+
+#include <ctype.h>
+
+HelpWindow::HelpWindow( const QString& home_, const QString& _path,
+ QWidget* parent, const char *name )
+ : QMainWindow( parent, name, WDestructiveClose ),
+ pathCombo( 0 )
+{
+ readHistory();
+ readBookmarks();
+
+ browser = new QTextBrowser( this );
+
+ browser->mimeSourceFactory()->setFilePath( _path );
+ browser->setFrameStyle( QFrame::Panel | QFrame::Sunken );
+ connect( browser, SIGNAL( sourceChanged(const QString& ) ),
+ this, SLOT( sourceChanged( const QString&) ) );
+
+ setCentralWidget( browser );
+
+ if ( !home_.isEmpty() )
+ browser->setSource( home_ );
+
+ connect( browser, SIGNAL( highlighted( const QString&) ),
+ statusBar(), SLOT( message( const QString&)) );
+
+ resize( 640,700 );
+
+ QPopupMenu* file = new QPopupMenu( this );
+ file->insertItem( tr("&New Window"), this, SLOT( newWindow() ), CTRL+Key_N );
+ file->insertItem( tr("&Open File"), this, SLOT( openFile() ), CTRL+Key_O );
+ file->insertItem( tr("&Print"), this, SLOT( print() ), CTRL+Key_P );
+ file->insertSeparator();
+ file->insertItem( tr("&Close"), this, SLOT( close() ), CTRL+Key_Q );
+ file->insertItem( tr("E&xit"), qApp, SLOT( closeAllWindows() ), CTRL+Key_X );
+
+ // The same three icons are used twice each.
+ QIconSet icon_back( QPixmap("back.xpm") );
+ QIconSet icon_forward( QPixmap("forward.xpm") );
+ QIconSet icon_home( QPixmap("home.xpm") );
+
+ QPopupMenu* go = new QPopupMenu( this );
+ backwardId = go->insertItem( icon_back,
+ tr("&Backward"), browser, SLOT( backward() ),
+ CTRL+Key_Left );
+ forwardId = go->insertItem( icon_forward,
+ tr("&Forward"), browser, SLOT( forward() ),
+ CTRL+Key_Right );
+ go->insertItem( icon_home, tr("&Home"), browser, SLOT( home() ) );
+
+ QPopupMenu* help = new QPopupMenu( this );
+ help->insertItem( tr("&About"), this, SLOT( about() ) );
+ help->insertItem( tr("About &Qt"), this, SLOT( aboutQt() ) );
+
+ hist = new QPopupMenu( this );
+ QStringList::Iterator it = history.begin();
+ for ( ; it != history.end(); ++it )
+ mHistory[ hist->insertItem( *it ) ] = *it;
+ connect( hist, SIGNAL( activated( int ) ),
+ this, SLOT( histChosen( int ) ) );
+
+ bookm = new QPopupMenu( this );
+ bookm->insertItem( tr( "Add Bookmark" ), this, SLOT( addBookmark() ) );
+ bookm->insertSeparator();
+
+ QStringList::Iterator it2 = bookmarks.begin();
+ for ( ; it2 != bookmarks.end(); ++it2 )
+ mBookmarks[ bookm->insertItem( *it2 ) ] = *it2;
+ connect( bookm, SIGNAL( activated( int ) ),
+ this, SLOT( bookmChosen( int ) ) );
+
+ menuBar()->insertItem( tr("&File"), file );
+ menuBar()->insertItem( tr("&Go"), go );
+ menuBar()->insertItem( tr( "History" ), hist );
+ menuBar()->insertItem( tr( "Bookmarks" ), bookm );
+ menuBar()->insertSeparator();
+ menuBar()->insertItem( tr("&Help"), help );
+
+ menuBar()->setItemEnabled( forwardId, FALSE);
+ menuBar()->setItemEnabled( backwardId, FALSE);
+ connect( browser, SIGNAL( backwardAvailable( bool ) ),
+ this, SLOT( setBackwardAvailable( bool ) ) );
+ connect( browser, SIGNAL( forwardAvailable( bool ) ),
+ this, SLOT( setForwardAvailable( bool ) ) );
+
+
+ QToolBar* toolbar = new QToolBar( this );
+ addToolBar( toolbar, "Toolbar");
+ QToolButton* button;
+
+ button = new QToolButton( icon_back, tr("Backward"), "", browser, SLOT(backward()), toolbar );
+ connect( browser, SIGNAL( backwardAvailable(bool) ), button, SLOT( setEnabled(bool) ) );
+ button->setEnabled( FALSE );
+ button = new QToolButton( icon_forward, tr("Forward"), "", browser, SLOT(forward()), toolbar );
+ connect( browser, SIGNAL( forwardAvailable(bool) ), button, SLOT( setEnabled(bool) ) );
+ button->setEnabled( FALSE );
+ button = new QToolButton( icon_home, tr("Home"), "", browser, SLOT(home()), toolbar );
+
+ toolbar->addSeparator();
+
+ pathCombo = new QComboBox( TRUE, toolbar );
+ connect( pathCombo, SIGNAL( activated( const QString & ) ),
+ this, SLOT( pathSelected( const QString & ) ) );
+ toolbar->setStretchableWidget( pathCombo );
+ setRightJustification( TRUE );
+ setDockEnabled( DockLeft, FALSE );
+ setDockEnabled( DockRight, FALSE );
+
+ pathCombo->insertItem( home_ );
+ browser->setFocus();
+
+}
+
+
+void HelpWindow::setBackwardAvailable( bool b)
+{
+ menuBar()->setItemEnabled( backwardId, b);
+}
+
+void HelpWindow::setForwardAvailable( bool b)
+{
+ menuBar()->setItemEnabled( forwardId, b);
+}
+
+
+void HelpWindow::sourceChanged( const QString& url )
+{
+ if ( browser->documentTitle().isNull() )
+ setCaption( "Qt Example - Helpviewer - " + url );
+ else
+ setCaption( "Qt Example - Helpviewer - " + browser->documentTitle() ) ;
+
+ if ( !url.isEmpty() && pathCombo ) {
+ bool exists = FALSE;
+ int i;
+ for ( i = 0; i < pathCombo->count(); ++i ) {
+ if ( pathCombo->text( i ) == url ) {
+ exists = TRUE;
+ break;
+ }
+ }
+ if ( !exists ) {
+ pathCombo->insertItem( url, 0 );
+ pathCombo->setCurrentItem( 0 );
+ mHistory[ hist->insertItem( url ) ] = url;
+ } else
+ pathCombo->setCurrentItem( i );
+ }
+}
+
+HelpWindow::~HelpWindow()
+{
+ history = mHistory.values();
+
+ QFile f( QDir::currentDirPath() + "/.history" );
+ f.open( IO_WriteOnly );
+ QDataStream s( &f );
+ s << history;
+ f.close();
+
+ bookmarks = mBookmarks.values();
+
+ QFile f2( QDir::currentDirPath() + "/.bookmarks" );
+ f2.open( IO_WriteOnly );
+ QDataStream s2( &f2 );
+ s2 << bookmarks;
+ f2.close();
+}
+
+void HelpWindow::about()
+{
+ QMessageBox::about( this, "HelpViewer Example",
+ "<p>This example implements a simple HTML help viewer "
+ "using Qt's rich text capabilities</p>"
+ "<p>It's just about 400 lines of C++ code, so don't expect too much :-)</p>"
+ );
+}
+
+
+void HelpWindow::aboutQt()
+{
+ QMessageBox::aboutQt( this, "QBrowser" );
+}
+
+void HelpWindow::openFile()
+{
+#ifndef QT_NO_FILEDIALOG
+ QString fn = QFileDialog::getOpenFileName( QString::null, QString::null, this );
+ if ( !fn.isEmpty() )
+ browser->setSource( fn );
+#endif
+}
+
+void HelpWindow::newWindow()
+{
+ ( new HelpWindow(browser->source(), "qbrowser") )->show();
+}
+
+void HelpWindow::print()
+{
+#ifndef QT_NO_PRINTER
+ QPrinter printer( QPrinter::HighResolution );
+ printer.setFullPage(TRUE);
+ if ( printer.setup( this ) ) {
+ QPainter p( &printer );
+ if( !p.isActive() ) // starting printing failed
+ return;
+ QPaintDeviceMetrics metrics(p.device());
+ int dpiy = metrics.logicalDpiY();
+ int margin = (int) ( (2/2.54)*dpiy ); // 2 cm margins
+ QRect view( margin, margin, metrics.width() - 2*margin, metrics.height() - 2*margin );
+ QSimpleRichText richText( browser->text(),
+ QFont(),
+ browser->context(),
+ browser->styleSheet(),
+ browser->mimeSourceFactory(),
+ view.height() );
+ richText.setWidth( &p, view.width() );
+ int page = 1;
+ do {
+ richText.draw( &p, margin, margin, view, colorGroup() );
+ view.moveBy( 0, view.height() );
+ p.translate( 0 , -view.height() );
+ p.drawText( view.right() - p.fontMetrics().width( QString::number(page) ),
+ view.bottom() + p.fontMetrics().ascent() + 5, QString::number(page) );
+ if ( view.top() - margin >= richText.height() )
+ break;
+ printer.newPage();
+ page++;
+ } while (TRUE);
+ }
+#endif
+}
+
+void HelpWindow::pathSelected( const QString &_path )
+{
+ browser->setSource( _path );
+ if ( mHistory.values().contains(_path) )
+ mHistory[ hist->insertItem( _path ) ] = _path;
+}
+
+void HelpWindow::readHistory()
+{
+ if ( QFile::exists( QDir::currentDirPath() + "/.history" ) ) {
+ QFile f( QDir::currentDirPath() + "/.history" );
+ f.open( IO_ReadOnly );
+ QDataStream s( &f );
+ s >> history;
+ f.close();
+ while ( history.count() > 20 )
+ history.remove( history.begin() );
+ }
+}
+
+void HelpWindow::readBookmarks()
+{
+ if ( QFile::exists( QDir::currentDirPath() + "/.bookmarks" ) ) {
+ QFile f( QDir::currentDirPath() + "/.bookmarks" );
+ f.open( IO_ReadOnly );
+ QDataStream s( &f );
+ s >> bookmarks;
+ f.close();
+ }
+}
+
+void HelpWindow::histChosen( int i )
+{
+ if ( mHistory.contains( i ) )
+ browser->setSource( mHistory[ i ] );
+}
+
+void HelpWindow::bookmChosen( int i )
+{
+ if ( mBookmarks.contains( i ) )
+ browser->setSource( mBookmarks[ i ] );
+}
+
+void HelpWindow::addBookmark()
+{
+ mBookmarks[ bookm->insertItem( caption() ) ] = browser->context();
+}
diff --git a/examples/helpviewer/helpwindow.h b/examples/helpviewer/helpwindow.h
new file mode 100644
index 0000000..6a8b0a9
--- /dev/null
+++ b/examples/helpviewer/helpwindow.h
@@ -0,0 +1,63 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
+**
+** This file is part of an example program for Qt. This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#ifndef HELPWINDOW_H
+#define HELPWINDOW_H
+
+#include <qmainwindow.h>
+#include <qtextbrowser.h>
+#include <qstringlist.h>
+#include <qmap.h>
+#include <qdir.h>
+
+class QComboBox;
+class QPopupMenu;
+
+class HelpWindow : public QMainWindow
+{
+ Q_OBJECT
+public:
+ HelpWindow( const QString& home_, const QString& path, QWidget* parent = 0, const char *name=0 );
+ ~HelpWindow();
+
+private slots:
+ void setBackwardAvailable( bool );
+ void setForwardAvailable( bool );
+
+ void sourceChanged( const QString& );
+ void about();
+ void aboutQt();
+ void openFile();
+ void newWindow();
+ void print();
+
+ void pathSelected( const QString & );
+ void histChosen( int );
+ void bookmChosen( int );
+ void addBookmark();
+
+private:
+ void readHistory();
+ void readBookmarks();
+
+ QTextBrowser* browser;
+ QComboBox *pathCombo;
+ int backwardId, forwardId;
+ QStringList history, bookmarks;
+ QMap<int, QString> mHistory, mBookmarks;
+ QPopupMenu *hist, *bookm;
+
+};
+
+
+
+
+
+#endif
+
diff --git a/examples/helpviewer/home.xpm b/examples/helpviewer/home.xpm
new file mode 100644
index 0000000..9c1369d
--- /dev/null
+++ b/examples/helpviewer/home.xpm
@@ -0,0 +1,27 @@
+/* XPM */
+/* Drawn by Mark Donohoe for the K Desktop Environment */
+/* See http://www.kde.org */
+static char*home[]={
+"16 16 4 1",
+"# c #000000",
+"a c #ffffff",
+"b c #c0c0c0",
+". c None",
+"........... ....",
+" ....##.......",
+"..#...####......",
+"..#..#aabb#.....",
+"..#.#aaaabb#....",
+"..##aaaaaabb#...",
+"..#aaaaaaaabb#..",
+".#aaaaaaaaabbb#.",
+"###aaaaaaaabb###",
+"..#aaaaaaaabb#..",
+"..#aaa###aabb#..",
+"..#aaa#.#aabb#..",
+"..#aaa#.#aabb#..",
+"..#aaa#.#aabb#..",
+"..#aaa#.#aabb#..",
+"..#####.######..",
+"................"};
+
diff --git a/examples/helpviewer/main.cpp b/examples/helpviewer/main.cpp
new file mode 100644
index 0000000..4f656fc
--- /dev/null
+++ b/examples/helpviewer/main.cpp
@@ -0,0 +1,41 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
+**
+** This file is part of an example program for Qt. This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#include "helpwindow.h"
+#include <qapplication.h>
+#include <qdir.h>
+#include <stdlib.h>
+
+
+int main( int argc, char ** argv )
+{
+ QApplication::setColorSpec( QApplication::ManyColor );
+ QApplication a(argc, argv);
+
+ QString home;
+ if (argc > 1) {
+ home = argv[1];
+ } else {
+ // Use a hard coded path. It is only an example.
+ home = QDir( "../../doc/html/index.html" ).absPath();
+ }
+
+ HelpWindow *help = new HelpWindow(home, ".", 0, "help viewer");
+ help->setCaption("Qt Example - Helpviewer");
+ if ( QApplication::desktop()->width() > 400
+ && QApplication::desktop()->height() > 500 )
+ help->show();
+ else
+ help->showMaximized();
+
+ QObject::connect( &a, SIGNAL(lastWindowClosed()),
+ &a, SLOT(quit()) );
+
+ return a.exec();
+}