| 1 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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| 2 | <!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/examples/helpviewer/helpviewer.doc:4 -->
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| 3 | <html>
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| 4 | <head>
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| 5 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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| 6 | <title>Simple HTML Help Browser</title>
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| 7 | <style type="text/css"><!--
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| 8 | fn { margin-left: 1cm; text-indent: -1cm; }
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| 9 | a:link { color: #004faf; text-decoration: none }
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| 10 | a:visited { color: #672967; text-decoration: none }
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| 11 | body { background: #ffffff; color: black; }
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| 12 | --></style>
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| 13 | </head>
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| 14 | <body>
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| 15 |
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| 16 | <table border="0" cellpadding="0" cellspacing="0" width="100%">
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| 17 | <tr bgcolor="#E5E5E5">
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| 18 | <td valign=center>
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| 19 | <a href="index.html">
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| 20 | <font color="#004faf">Home</font></a>
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| 21 | | <a href="classes.html">
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| 22 | <font color="#004faf">All Classes</font></a>
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| 23 | | <a href="mainclasses.html">
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| 24 | <font color="#004faf">Main Classes</font></a>
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| 25 | | <a href="annotated.html">
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| 26 | <font color="#004faf">Annotated</font></a>
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| 27 | | <a href="groups.html">
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| 28 | <font color="#004faf">Grouped Classes</font></a>
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| 29 | | <a href="functions.html">
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| 30 | <font color="#004faf">Functions</font></a>
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| 31 | </td>
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| 32 | <td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>Simple HTML Help Browser</h1>
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| 33 |
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| 34 |
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| 35 | <p>
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| 36 | This example implements a simple HTML help browser using
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| 37 | Qt's richtext capabilities.
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| 38 | <p> <hr>
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| 39 | <p> Header file:
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| 40 | <p> <pre>/****************************************************************************
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| 41 | ** $Id: helpviewer-example.html 2051 2007-02-21 10:04:20Z chehrlic $
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| 42 | **
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| 43 | ** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
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| 44 | **
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| 45 | ** This file is part of an example program for Qt. This example
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| 46 | ** program may be used, distributed and modified without limitation.
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| 47 | **
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| 48 | *****************************************************************************/
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| 49 |
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| 50 | #ifndef HELPWINDOW_H
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| 51 | #define HELPWINDOW_H
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| 52 |
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| 53 | #include <<a href="qmainwindow-h.html">qmainwindow.h</a>>
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| 54 | #include <<a href="qtextbrowser-h.html">qtextbrowser.h</a>>
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| 55 | #include <<a href="qstringlist-h.html">qstringlist.h</a>>
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| 56 | #include <<a href="qmap-h.html">qmap.h</a>>
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| 57 | #include <<a href="qdir-h.html">qdir.h</a>>
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| 58 |
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| 59 | class QComboBox;
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| 60 | class QPopupMenu;
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| 61 |
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| 62 | class HelpWindow : public <a href="qmainwindow.html">QMainWindow</a>
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| 63 | {
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| 64 | <a href="metaobjects.html#Q_OBJECT">Q_OBJECT</a>
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| 65 | public:
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| 66 | HelpWindow( const <a href="qstring.html">QString</a>& home_, const <a href="qstring.html">QString</a>& path, QWidget* parent = 0, const char *name=0 );
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| 67 | ~HelpWindow();
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| 68 |
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| 69 | private slots:
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| 70 | void setBackwardAvailable( bool );
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| 71 | void setForwardAvailable( bool );
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| 72 |
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| 73 | void sourceChanged( const <a href="qstring.html">QString</a>& );
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| 74 | void about();
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| 75 | void aboutQt();
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| 76 | void openFile();
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| 77 | void newWindow();
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| 78 | void print();
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| 79 |
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| 80 | void pathSelected( const <a href="qstring.html">QString</a> & );
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| 81 | void histChosen( int );
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| 82 | void bookmChosen( int );
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| 83 | void addBookmark();
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| 84 |
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| 85 | private:
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| 86 | void readHistory();
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| 87 | void readBookmarks();
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| 88 |
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| 89 | <a href="qtextbrowser.html">QTextBrowser</a>* browser;
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| 90 | <a href="qcombobox.html">QComboBox</a> *pathCombo;
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| 91 | int backwardId, forwardId;
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| 92 | <a href="qstringlist.html">QStringList</a> history, bookmarks;
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| 93 | <a href="qmap.html">QMap</a><int, QString> mHistory, mBookmarks;
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| 94 | <a href="qpopupmenu.html">QPopupMenu</a> *hist, *bookm;
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| 95 |
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| 96 | };
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| 97 |
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| 98 |
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| 99 |
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| 100 |
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| 101 |
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| 102 | #endif
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| 103 |
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| 104 | </pre>
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| 105 |
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| 106 | <p> <hr>
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| 107 | <p> Implementation:
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| 108 | <p> <pre>/****************************************************************************
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| 109 | ** $Id: helpviewer-example.html 2051 2007-02-21 10:04:20Z chehrlic $
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| 110 | **
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| 111 | ** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
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| 112 | **
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| 113 | ** This file is part of an example program for Qt. This example
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| 114 | ** program may be used, distributed and modified without limitation.
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| 115 | **
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| 116 | *****************************************************************************/
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| 117 |
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| 118 | #include "helpwindow.h"
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| 119 | #include <<a href="qstatusbar-h.html">qstatusbar.h</a>>
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| 120 | #include <<a href="qpixmap-h.html">qpixmap.h</a>>
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| 121 | #include <<a href="qpopupmenu-h.html">qpopupmenu.h</a>>
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| 122 | #include <<a href="qmenubar-h.html">qmenubar.h</a>>
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| 123 | #include <<a href="qtoolbar-h.html">qtoolbar.h</a>>
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| 124 | #include <<a href="qtoolbutton-h.html">qtoolbutton.h</a>>
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| 125 | #include <<a href="qiconset-h.html">qiconset.h</a>>
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| 126 | #include <<a href="qfile-h.html">qfile.h</a>>
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| 127 | #include <<a href="qtextstream-h.html">qtextstream.h</a>>
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| 128 | #include <<a href="qstylesheet-h.html">qstylesheet.h</a>>
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| 129 | #include <<a href="qmessagebox-h.html">qmessagebox.h</a>>
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| 130 | #include <<a href="qfiledialog-h.html">qfiledialog.h</a>>
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| 131 | #include <<a href="qapplication-h.html">qapplication.h</a>>
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| 132 | #include <<a href="qcombobox-h.html">qcombobox.h</a>>
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| 133 | #include <<a href="qevent-h.html">qevent.h</a>>
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| 134 | #include <<a href="qlineedit-h.html">qlineedit.h</a>>
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| 135 | #include <<a href="qobjectlist-h.html">qobjectlist.h</a>>
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| 136 | #include <<a href="qfileinfo-h.html">qfileinfo.h</a>>
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| 137 | #include <<a href="qfile-h.html">qfile.h</a>>
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| 138 | #include <<a href="qdatastream-h.html">qdatastream.h</a>>
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| 139 | #include <<a href="qprinter-h.html">qprinter.h</a>>
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| 140 | #include <<a href="qsimplerichtext-h.html">qsimplerichtext.h</a>>
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| 141 | #include <<a href="qpainter-h.html">qpainter.h</a>>
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| 142 | #include <<a href="qpaintdevicemetrics-h.html">qpaintdevicemetrics.h</a>>
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| 143 |
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| 144 | #include <ctype.h>
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| 145 |
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| 146 | <a name="f350"></a>HelpWindow::HelpWindow( const <a href="qstring.html">QString</a>& home_, const <a href="qstring.html">QString</a>& _path,
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| 147 | <a href="qwidget.html">QWidget</a>* parent, const char *name )
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| 148 | : <a href="qmainwindow.html">QMainWindow</a>( parent, name, WDestructiveClose ),
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| 149 | pathCombo( 0 )
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| 150 | {
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| 151 | readHistory();
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| 152 | readBookmarks();
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| 153 |
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| 154 | browser = new <a href="qtextbrowser.html">QTextBrowser</a>( this );
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| 155 |
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| 156 | <a name="x1030"></a> browser-><a href="qtextedit.html#mimeSourceFactory">mimeSourceFactory</a>()->setFilePath( _path );
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| 157 | browser-><a href="qframe.html#setFrameStyle">setFrameStyle</a>( QFrame::Panel | QFrame::Sunken );
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| 158 | <a name="x1027"></a> <a href="qobject.html#connect">connect</a>( browser, SIGNAL( <a href="qtextbrowser.html#sourceChanged">sourceChanged</a>(const <a href="qstring.html">QString</a>& ) ),
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| 159 | this, SLOT( sourceChanged( const <a href="qstring.html">QString</a>&) ) );
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| 160 |
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| 161 | <a href="qmainwindow.html#setCentralWidget">setCentralWidget</a>( browser );
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| 162 |
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| 163 | if ( !home_.<a href="qstring.html#isEmpty">isEmpty</a>() )
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| 164 | <a name="x1025"></a> browser-><a href="qtextbrowser.html#setSource">setSource</a>( home_ );
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| 165 |
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| 166 | <a name="x1023"></a> <a href="qobject.html#connect">connect</a>( browser, SIGNAL( <a href="qtextbrowser.html#highlighted">highlighted</a>( const <a href="qstring.html">QString</a>&) ),
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| 167 | <a href="qmainwindow.html#statusBar">statusBar</a>(), SLOT( message( const <a href="qstring.html">QString</a>&)) );
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| 168 |
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| 169 | <a href="qwidget.html#resize">resize</a>( 640,700 );
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| 170 |
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| 171 | <a href="qpopupmenu.html">QPopupMenu</a>* file = new <a href="qpopupmenu.html">QPopupMenu</a>( this );
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| 172 | file-><a href="qmenudata.html#insertItem">insertItem</a>( <a href="qobject.html#tr">tr</a>("&New Window"), this, SLOT( newWindow() ), CTRL+Key_N );
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| 173 | file-><a href="qmenudata.html#insertItem">insertItem</a>( <a href="qobject.html#tr">tr</a>("&Open File"), this, SLOT( openFile() ), CTRL+Key_O );
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| 174 | file-><a href="qmenudata.html#insertItem">insertItem</a>( <a href="qobject.html#tr">tr</a>("&Print"), this, SLOT( print() ), CTRL+Key_P );
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| 175 | file-><a href="qmenudata.html#insertSeparator">insertSeparator</a>();
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| 176 | file-><a href="qmenudata.html#insertItem">insertItem</a>( <a href="qobject.html#tr">tr</a>("&Close"), this, SLOT( <a href="qwidget.html#close">close</a>() ), CTRL+Key_Q );
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| 177 | <a name="x980"></a> file-><a href="qmenudata.html#insertItem">insertItem</a>( <a href="qobject.html#tr">tr</a>("E&xit"), qApp, SLOT( <a href="qapplication.html#closeAllWindows">closeAllWindows</a>() ), CTRL+Key_X );
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| 178 |
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| 179 | // The same three icons are used twice each.
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| 180 | <a href="qiconset.html">QIconSet</a> icon_back( QPixmap("back.xpm") );
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| 181 | <a href="qiconset.html">QIconSet</a> icon_forward( QPixmap("forward.xpm") );
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| 182 | <a href="qiconset.html">QIconSet</a> icon_home( QPixmap("home.xpm") );
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| 183 |
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| 184 | <a href="qpopupmenu.html">QPopupMenu</a>* go = new <a href="qpopupmenu.html">QPopupMenu</a>( this );
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| 185 | backwardId = go-><a href="qmenudata.html#insertItem">insertItem</a>( icon_back,
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| 186 | <a name="x1019"></a> <a href="qobject.html#tr">tr</a>("&Backward"), browser, SLOT( <a href="qtextbrowser.html#backward">backward</a>() ),
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| 187 | CTRL+Key_Left );
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| 188 | forwardId = go-><a href="qmenudata.html#insertItem">insertItem</a>( icon_forward,
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| 189 | <a name="x1021"></a> <a href="qobject.html#tr">tr</a>("&Forward"), browser, SLOT( <a href="qtextbrowser.html#forward">forward</a>() ),
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| 190 | CTRL+Key_Right );
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| 191 | <a name="x1024"></a> go-><a href="qmenudata.html#insertItem">insertItem</a>( icon_home, tr("&Home"), browser, SLOT( <a href="qtextbrowser.html#home">home</a>() ) );
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| 192 |
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| 193 | <a href="qpopupmenu.html">QPopupMenu</a>* help = new <a href="qpopupmenu.html">QPopupMenu</a>( this );
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| 194 | help-><a href="qmenudata.html#insertItem">insertItem</a>( <a href="qobject.html#tr">tr</a>("&About"), this, SLOT( about() ) );
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| 195 | help-><a href="qmenudata.html#insertItem">insertItem</a>( <a href="qobject.html#tr">tr</a>("About &Qt"), this, SLOT( aboutQt() ) );
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| 196 |
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| 197 | hist = new <a href="qpopupmenu.html">QPopupMenu</a>( this );
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| 198 | QStringList::Iterator it = history.begin();
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| 199 | for ( ; it != history.end(); ++it )
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| 200 | mHistory[ hist-><a href="qmenudata.html#insertItem">insertItem</a>( *it ) ] = *it;
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| 201 | <a name="x1004"></a> <a href="qobject.html#connect">connect</a>( hist, SIGNAL( <a href="qpopupmenu.html#activated">activated</a>( int ) ),
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| 202 | this, SLOT( histChosen( int ) ) );
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| 203 |
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| 204 | bookm = new <a href="qpopupmenu.html">QPopupMenu</a>( this );
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| 205 | bookm-><a href="qmenudata.html#insertItem">insertItem</a>( <a href="qobject.html#tr">tr</a>( "Add Bookmark" ), this, SLOT( addBookmark() ) );
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| 206 | bookm-><a href="qmenudata.html#insertSeparator">insertSeparator</a>();
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| 207 |
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| 208 | QStringList::Iterator it2 = bookmarks.begin();
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| 209 | for ( ; it2 != bookmarks.end(); ++it2 )
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| 210 | mBookmarks[ bookm-><a href="qmenudata.html#insertItem">insertItem</a>( *it2 ) ] = *it2;
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| 211 | <a href="qobject.html#connect">connect</a>( bookm, SIGNAL( <a href="qpopupmenu.html#activated">activated</a>( int ) ),
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| 212 | this, SLOT( bookmChosen( int ) ) );
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| 213 |
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| 214 | <a href="qmainwindow.html#menuBar">menuBar</a>()->insertItem( <a href="qobject.html#tr">tr</a>("&File"), file );
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| 215 | <a href="qmainwindow.html#menuBar">menuBar</a>()->insertItem( <a href="qobject.html#tr">tr</a>("&Go"), go );
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| 216 | <a href="qmainwindow.html#menuBar">menuBar</a>()->insertItem( <a href="qobject.html#tr">tr</a>( "History" ), hist );
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| 217 | <a href="qmainwindow.html#menuBar">menuBar</a>()->insertItem( <a href="qobject.html#tr">tr</a>( "Bookmarks" ), bookm );
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| 218 | <a href="qmainwindow.html#menuBar">menuBar</a>()->insertSeparator();
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| 219 | <a href="qmainwindow.html#menuBar">menuBar</a>()->insertItem( <a href="qobject.html#tr">tr</a>("&Help"), help );
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| 220 |
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| 221 | <a href="qmainwindow.html#menuBar">menuBar</a>()->setItemEnabled( forwardId, FALSE);
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| 222 | <a href="qmainwindow.html#menuBar">menuBar</a>()->setItemEnabled( backwardId, FALSE);
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| 223 | <a name="x1020"></a> <a href="qobject.html#connect">connect</a>( browser, SIGNAL( <a href="qtextbrowser.html#backwardAvailable">backwardAvailable</a>( bool ) ),
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| 224 | this, SLOT( setBackwardAvailable( bool ) ) );
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| 225 | <a name="x1022"></a> <a href="qobject.html#connect">connect</a>( browser, SIGNAL( <a href="qtextbrowser.html#forwardAvailable">forwardAvailable</a>( bool ) ),
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| 226 | this, SLOT( setForwardAvailable( bool ) ) );
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| 227 |
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| 228 |
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| 229 | <a href="qtoolbar.html">QToolBar</a>* toolbar = new <a href="qtoolbar.html">QToolBar</a>( this );
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| 230 | <a href="qmainwindow.html#addToolBar">addToolBar</a>( toolbar, "Toolbar");
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| 231 | <a href="qtoolbutton.html">QToolButton</a>* button;
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| 232 |
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| 233 | button = new <a href="qtoolbutton.html">QToolButton</a>( icon_back, tr("Backward"), "", browser, SLOT(<a href="qtextbrowser.html#backward">backward</a>()), toolbar );
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| 234 | <a name="x1035"></a> <a href="qobject.html#connect">connect</a>( browser, SIGNAL( <a href="qtextbrowser.html#backwardAvailable">backwardAvailable</a>(bool) ), button, SLOT( <a href="qwidget.html#setEnabled">setEnabled</a>(bool) ) );
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| 235 | button-><a href="qwidget.html#setEnabled">setEnabled</a>( FALSE );
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| 236 | button = new <a href="qtoolbutton.html">QToolButton</a>( icon_forward, tr("Forward"), "", browser, SLOT(<a href="qtextbrowser.html#forward">forward</a>()), toolbar );
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| 237 | <a href="qobject.html#connect">connect</a>( browser, SIGNAL( <a href="qtextbrowser.html#forwardAvailable">forwardAvailable</a>(bool) ), button, SLOT( <a href="qwidget.html#setEnabled">setEnabled</a>(bool) ) );
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| 238 | button-><a href="qwidget.html#setEnabled">setEnabled</a>( FALSE );
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| 239 | button = new <a href="qtoolbutton.html">QToolButton</a>( icon_home, tr("Home"), "", browser, SLOT(<a href="qtextbrowser.html#home">home</a>()), toolbar );
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| 240 |
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| 241 | <a name="x1033"></a> toolbar-><a href="qtoolbar.html#addSeparator">addSeparator</a>();
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| 242 |
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| 243 | pathCombo = new <a href="qcombobox.html">QComboBox</a>( TRUE, toolbar );
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| 244 | <a name="x981"></a> <a href="qobject.html#connect">connect</a>( pathCombo, SIGNAL( <a href="qcombobox.html#activated">activated</a>( const <a href="qstring.html">QString</a> & ) ),
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| 245 | this, SLOT( pathSelected( const <a href="qstring.html">QString</a> & ) ) );
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| 246 | <a name="x1034"></a> toolbar-><a href="qtoolbar.html#setStretchableWidget">setStretchableWidget</a>( pathCombo );
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| 247 | <a href="qmainwindow.html#setRightJustification">setRightJustification</a>( TRUE );
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| 248 | <a href="qmainwindow.html#setDockEnabled">setDockEnabled</a>( DockLeft, FALSE );
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| 249 | <a href="qmainwindow.html#setDockEnabled">setDockEnabled</a>( DockRight, FALSE );
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| 250 |
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| 251 | <a name="x983"></a> pathCombo-><a href="qcombobox.html#insertItem">insertItem</a>( home_ );
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| 252 | browser-><a href="qwidget.html#setFocus">setFocus</a>();
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| 253 |
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| 254 | }
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| 255 |
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| 256 |
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| 257 | void <a name="f351"></a>HelpWindow::setBackwardAvailable( bool b)
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| 258 | {
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| 259 | <a href="qmainwindow.html#menuBar">menuBar</a>()->setItemEnabled( backwardId, b);
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| 260 | }
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| 261 |
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| 262 | void <a name="f352"></a>HelpWindow::setForwardAvailable( bool b)
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| 263 | {
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| 264 | <a href="qmainwindow.html#menuBar">menuBar</a>()->setItemEnabled( forwardId, b);
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| 265 | }
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| 266 |
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| 267 |
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| 268 | void <a name="f353"></a>HelpWindow::sourceChanged( const <a href="qstring.html">QString</a>& url )
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| 269 | {
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| 270 | <a name="x1029"></a> if ( browser-><a href="qtextedit.html#documentTitle">documentTitle</a>().isNull() )
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| 271 | <a href="qwidget.html#setCaption">setCaption</a>( "Qt Example - Helpviewer - " + url );
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| 272 | else
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| 273 | <a href="qwidget.html#setCaption">setCaption</a>( "Qt Example - Helpviewer - " + browser-><a href="qtextedit.html#documentTitle">documentTitle</a>() ) ;
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| 274 |
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| 275 | if ( !url.<a href="qstring.html#isEmpty">isEmpty</a>() && pathCombo ) {
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| 276 | bool exists = FALSE;
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| 277 | int i;
|
|---|
| 278 | <a name="x982"></a> for ( i = 0; i < pathCombo-><a href="qcombobox.html#count">count</a>(); ++i ) {
|
|---|
| 279 | <a name="x985"></a> if ( pathCombo-><a href="qcombobox.html#text">text</a>( i ) == url ) {
|
|---|
| 280 | exists = TRUE;
|
|---|
| 281 | break;
|
|---|
| 282 | }
|
|---|
| 283 | }
|
|---|
| 284 | if ( !exists ) {
|
|---|
| 285 | pathCombo-><a href="qcombobox.html#insertItem">insertItem</a>( url, 0 );
|
|---|
| 286 | <a name="x984"></a> pathCombo-><a href="qcombobox.html#setCurrentItem">setCurrentItem</a>( 0 );
|
|---|
| 287 | mHistory[ hist-><a href="qmenudata.html#insertItem">insertItem</a>( url ) ] = url;
|
|---|
| 288 | } else
|
|---|
| 289 | pathCombo-><a href="qcombobox.html#setCurrentItem">setCurrentItem</a>( i );
|
|---|
| 290 | }
|
|---|
| 291 | }
|
|---|
| 292 |
|
|---|
| 293 | HelpWindow::~HelpWindow()
|
|---|
| 294 | {
|
|---|
| 295 | history = mHistory.values();
|
|---|
| 296 |
|
|---|
| 297 | <a name="x986"></a> <a href="qfile.html">QFile</a> f( QDir::<a href="qdir.html#currentDirPath">currentDirPath</a>() + "/.history" );
|
|---|
| 298 | <a name="x989"></a> f.<a href="qfile.html#open">open</a>( <a href="qfile.html#open">IO_WriteOnly</a> );
|
|---|
| 299 | <a href="qdatastream.html">QDataStream</a> s( &f );
|
|---|
| 300 | s << history;
|
|---|
| 301 | <a name="x987"></a> f.<a href="qfile.html#close">close</a>();
|
|---|
| 302 |
|
|---|
| 303 | bookmarks = mBookmarks.values();
|
|---|
| 304 |
|
|---|
| 305 | <a href="qfile.html">QFile</a> f2( QDir::<a href="qdir.html#currentDirPath">currentDirPath</a>() + "/.bookmarks" );
|
|---|
| 306 | f2.<a href="qfile.html#open">open</a>( IO_WriteOnly );
|
|---|
| 307 | <a href="qdatastream.html">QDataStream</a> s2( &f2 );
|
|---|
| 308 | s2 << bookmarks;
|
|---|
| 309 | f2.<a href="qfile.html#close">close</a>();
|
|---|
| 310 | }
|
|---|
| 311 |
|
|---|
| 312 | void <a name="f354"></a>HelpWindow::about()
|
|---|
| 313 | {
|
|---|
| 314 | <a name="x994"></a> QMessageBox::<a href="qmessagebox.html#about">about</a>( this, "HelpViewer Example",
|
|---|
| 315 | "<p>This example implements a simple HTML help viewer "
|
|---|
| 316 | "using Qt's rich text capabilities</p>"
|
|---|
| 317 | "<p>It's just about 400 lines of C++ code, so don't expect too much :-)</p>"
|
|---|
| 318 | );
|
|---|
| 319 | }
|
|---|
| 320 |
|
|---|
| 321 |
|
|---|
| 322 | void <a name="f355"></a>HelpWindow::aboutQt()
|
|---|
| 323 | {
|
|---|
| 324 | <a name="x995"></a> QMessageBox::<a href="qmessagebox.html#aboutQt">aboutQt</a>( this, "QBrowser" );
|
|---|
| 325 | }
|
|---|
| 326 |
|
|---|
| 327 | void <a name="f356"></a>HelpWindow::openFile()
|
|---|
| 328 | {
|
|---|
| 329 | #ifndef QT_NO_FILEDIALOG
|
|---|
| 330 | <a href="qstring.html">QString</a> fn = QFileDialog::<a href="qfiledialog.html#getOpenFileName">getOpenFileName</a>( <a href="qstring.html#QString-null">QString::null</a>, QString::null, this );
|
|---|
| 331 | if ( !fn.<a href="qstring.html#isEmpty">isEmpty</a>() )
|
|---|
| 332 | browser-><a href="qtextbrowser.html#setSource">setSource</a>( fn );
|
|---|
| 333 | #endif
|
|---|
| 334 | }
|
|---|
| 335 |
|
|---|
| 336 | void <a name="f357"></a>HelpWindow::newWindow()
|
|---|
| 337 | {
|
|---|
| 338 | <a name="x1026"></a> ( new HelpWindow(browser-><a href="qtextbrowser.html#source">source</a>(), "qbrowser") )->show();
|
|---|
| 339 | }
|
|---|
| 340 |
|
|---|
| 341 | void <a name="f358"></a>HelpWindow::print()
|
|---|
| 342 | {
|
|---|
| 343 | #ifndef QT_NO_PRINTER
|
|---|
| 344 | <a href="qprinter.html">QPrinter</a> printer( QPrinter::HighResolution );
|
|---|
| 345 | <a name="x1006"></a> printer.<a href="qprinter.html#setFullPage">setFullPage</a>(TRUE);
|
|---|
| 346 | <a name="x1007"></a> if ( printer.<a href="qprinter.html#setup">setup</a>( this ) ) {
|
|---|
| 347 | <a href="qpainter.html">QPainter</a> p( &printer );
|
|---|
| 348 | <a name="x1002"></a> if( !p.<a href="qpainter.html#isActive">isActive</a>() ) // starting printing failed
|
|---|
| 349 | return;
|
|---|
| 350 | <a name="x999"></a> <a href="qpaintdevicemetrics.html">QPaintDeviceMetrics</a> metrics(p.<a href="qpainter.html#device">device</a>());
|
|---|
| 351 | <a name="x997"></a> int dpiy = metrics.<a href="qpaintdevicemetrics.html#logicalDpiY">logicalDpiY</a>();
|
|---|
| 352 | int margin = (int) ( (2/2.54)*dpiy ); // 2 cm margins
|
|---|
| 353 | <a name="x998"></a><a name="x996"></a> <a href="qrect.html">QRect</a> view( margin, margin, metrics.<a href="qpaintdevicemetrics.html#width">width</a>() - 2*margin, metrics.<a href="qpaintdevicemetrics.html#height">height</a>() - 2*margin );
|
|---|
| 354 | <a name="x1032"></a> <a href="qsimplerichtext.html">QSimpleRichText</a> richText( browser-><a href="qtextedit.html#text">text</a>(),
|
|---|
| 355 | QFont(),
|
|---|
| 356 | <a name="x1028"></a> browser-><a href="qtextedit.html#context">context</a>(),
|
|---|
| 357 | <a name="x1031"></a> browser-><a href="qtextedit.html#styleSheet">styleSheet</a>(),
|
|---|
| 358 | browser-><a href="qtextedit.html#mimeSourceFactory">mimeSourceFactory</a>(),
|
|---|
| 359 | view.<a href="qrect.html#height">height</a>() );
|
|---|
| 360 | <a name="x1016"></a> richText.<a href="qsimplerichtext.html#setWidth">setWidth</a>( &p, view.<a href="qrect.html#width">width</a>() );
|
|---|
| 361 | int page = 1;
|
|---|
| 362 | do {
|
|---|
| 363 | <a name="x1014"></a> richText.<a href="qsimplerichtext.html#draw">draw</a>( &p, margin, margin, view, colorGroup() );
|
|---|
| 364 | <a name="x1010"></a> view.<a href="qrect.html#moveBy">moveBy</a>( 0, view.<a href="qrect.html#height">height</a>() );
|
|---|
| 365 | p.<a href="qpainter.html#translate">translate</a>( 0 , -view.<a href="qrect.html#height">height</a>() );
|
|---|
| 366 | <a name="x1018"></a><a name="x1001"></a> p.<a href="qpainter.html#drawText">drawText</a>( view.<a href="qrect.html#right">right</a>() - p.<a href="qpainter.html#fontMetrics">fontMetrics</a>().width( QString::<a href="qstring.html#number">number</a>(page) ),
|
|---|
| 367 | <a name="x1008"></a> view.<a href="qrect.html#bottom">bottom</a>() + p.<a href="qpainter.html#fontMetrics">fontMetrics</a>().ascent() + 5, QString::number(page) );
|
|---|
| 368 | <a name="x1015"></a> if ( view.<a href="qrect.html#top">top</a>() - margin >= richText.<a href="qsimplerichtext.html#height">height</a>() )
|
|---|
| 369 | break;
|
|---|
| 370 | <a name="x1005"></a> printer.<a href="qprinter.html#newPage">newPage</a>();
|
|---|
| 371 | page++;
|
|---|
| 372 | } while (TRUE);
|
|---|
| 373 | }
|
|---|
| 374 | #endif
|
|---|
| 375 | }
|
|---|
| 376 |
|
|---|
| 377 | void <a name="f359"></a>HelpWindow::pathSelected( const <a href="qstring.html">QString</a> &_path )
|
|---|
| 378 | {
|
|---|
| 379 | browser-><a href="qtextbrowser.html#setSource">setSource</a>( _path );
|
|---|
| 380 | if ( mHistory.values().contains(_path) )
|
|---|
| 381 | mHistory[ hist-><a href="qmenudata.html#insertItem">insertItem</a>( _path ) ] = _path;
|
|---|
| 382 | }
|
|---|
| 383 |
|
|---|
| 384 | void <a name="f360"></a>HelpWindow::readHistory()
|
|---|
| 385 | {
|
|---|
| 386 | <a name="x988"></a> if ( QFile::<a href="qfile.html#exists">exists</a>( QDir::<a href="qdir.html#currentDirPath">currentDirPath</a>() + "/.history" ) ) {
|
|---|
| 387 | <a href="qfile.html">QFile</a> f( QDir::<a href="qdir.html#currentDirPath">currentDirPath</a>() + "/.history" );
|
|---|
| 388 | f.<a href="qfile.html#open">open</a>( <a href="qfile.html#open">IO_ReadOnly</a> );
|
|---|
| 389 | <a href="qdatastream.html">QDataStream</a> s( &f );
|
|---|
| 390 | s >> history;
|
|---|
| 391 | f.<a href="qfile.html#close">close</a>();
|
|---|
| 392 | while ( history.count() > 20 )
|
|---|
| 393 | history.remove( history.begin() );
|
|---|
| 394 | }
|
|---|
| 395 | }
|
|---|
| 396 |
|
|---|
| 397 | void <a name="f361"></a>HelpWindow::readBookmarks()
|
|---|
| 398 | {
|
|---|
| 399 | if ( QFile::<a href="qfile.html#exists">exists</a>( QDir::<a href="qdir.html#currentDirPath">currentDirPath</a>() + "/.bookmarks" ) ) {
|
|---|
| 400 | <a href="qfile.html">QFile</a> f( QDir::<a href="qdir.html#currentDirPath">currentDirPath</a>() + "/.bookmarks" );
|
|---|
| 401 | f.<a href="qfile.html#open">open</a>( IO_ReadOnly );
|
|---|
| 402 | <a href="qdatastream.html">QDataStream</a> s( &f );
|
|---|
| 403 | s >> bookmarks;
|
|---|
| 404 | f.<a href="qfile.html#close">close</a>();
|
|---|
| 405 | }
|
|---|
| 406 | }
|
|---|
| 407 |
|
|---|
| 408 | void <a name="f362"></a>HelpWindow::histChosen( int i )
|
|---|
| 409 | {
|
|---|
| 410 | if ( mHistory.contains( i ) )
|
|---|
| 411 | browser-><a href="qtextbrowser.html#setSource">setSource</a>( mHistory[ i ] );
|
|---|
| 412 | }
|
|---|
| 413 |
|
|---|
| 414 | void <a name="f363"></a>HelpWindow::bookmChosen( int i )
|
|---|
| 415 | {
|
|---|
| 416 | if ( mBookmarks.contains( i ) )
|
|---|
| 417 | browser-><a href="qtextbrowser.html#setSource">setSource</a>( mBookmarks[ i ] );
|
|---|
| 418 | }
|
|---|
| 419 |
|
|---|
| 420 | void <a name="f364"></a>HelpWindow::addBookmark()
|
|---|
| 421 | {
|
|---|
| 422 | mBookmarks[ bookm-><a href="qmenudata.html#insertItem">insertItem</a>( <a href="qwidget.html#caption">caption</a>() ) ] = browser-><a href="qtextedit.html#context">context</a>();
|
|---|
| 423 | }
|
|---|
| 424 | </pre>
|
|---|
| 425 |
|
|---|
| 426 | <p> <hr>
|
|---|
| 427 | <p> Main:
|
|---|
| 428 | <p> <pre>/****************************************************************************
|
|---|
| 429 | ** $Id: helpviewer-example.html 2051 2007-02-21 10:04:20Z chehrlic $
|
|---|
| 430 | **
|
|---|
| 431 | ** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
|
|---|
| 432 | **
|
|---|
| 433 | ** This file is part of an example program for Qt. This example
|
|---|
| 434 | ** program may be used, distributed and modified without limitation.
|
|---|
| 435 | **
|
|---|
| 436 | *****************************************************************************/
|
|---|
| 437 |
|
|---|
| 438 | #include "helpwindow.h"
|
|---|
| 439 | #include <<a href="qapplication-h.html">qapplication.h</a>>
|
|---|
| 440 | #include <<a href="qdir-h.html">qdir.h</a>>
|
|---|
| 441 | #include <stdlib.h>
|
|---|
| 442 |
|
|---|
| 443 |
|
|---|
| 444 | int main( int argc, char ** argv )
|
|---|
| 445 | {
|
|---|
| 446 | <a name="x1041"></a> QApplication::<a href="qapplication.html#setColorSpec">setColorSpec</a>( QApplication::ManyColor );
|
|---|
| 447 | <a href="qapplication.html">QApplication</a> a(argc, argv);
|
|---|
| 448 |
|
|---|
| 449 | <a href="qstring.html">QString</a> home;
|
|---|
| 450 | if (argc > 1) {
|
|---|
| 451 | home = argv[1];
|
|---|
| 452 | } else {
|
|---|
| 453 | // Use a hard coded path. It is only an example.
|
|---|
| 454 | home = QDir( "../../doc/html/index.html" ).absPath();
|
|---|
| 455 | }
|
|---|
| 456 |
|
|---|
| 457 | HelpWindow *help = new HelpWindow(home, ".", 0, "help viewer");
|
|---|
| 458 | help-><a href="qwidget.html#setCaption">setCaption</a>("Qt Example - Helpviewer");
|
|---|
| 459 | <a name="x1037"></a> if ( QApplication::<a href="qapplication.html#desktop">desktop</a>()->width() > 400
|
|---|
| 460 | && QApplication::<a href="qapplication.html#desktop">desktop</a>()->height() > 500 )
|
|---|
| 461 | help-><a href="qwidget.html#show">show</a>();
|
|---|
| 462 | else
|
|---|
| 463 | <a name="x1045"></a> help-><a href="qwidget.html#showMaximized">showMaximized</a>();
|
|---|
| 464 |
|
|---|
| 465 | <a name="x1039"></a> QObject::<a href="qobject.html#connect">connect</a>( &a, SIGNAL(<a href="qapplication.html#lastWindowClosed">lastWindowClosed</a>()),
|
|---|
| 466 | &a, SLOT(<a href="qapplication.html#quit">quit</a>()) );
|
|---|
| 467 |
|
|---|
| 468 | return a.<a href="qapplication.html#exec">exec</a>();
|
|---|
| 469 | }
|
|---|
| 470 | </pre>
|
|---|
| 471 |
|
|---|
| 472 | <p>See also <a href="examples.html">Examples</a>.
|
|---|
| 473 |
|
|---|
| 474 | <!-- eof -->
|
|---|
| 475 | <p><address><hr><div align=center>
|
|---|
| 476 | <table width=100% cellspacing=0 border=0><tr>
|
|---|
| 477 | <td>Copyright © 2007
|
|---|
| 478 | <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
|
|---|
| 479 | <td align=right><div align=right>Qt 3.3.8</div>
|
|---|
| 480 | </table></div></address></body>
|
|---|
| 481 | </html>
|
|---|
