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601 lines
27 KiB
601 lines
27 KiB
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/examples/mdi/mdi.doc:4 -->
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>An MDI Application</title>
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<style type="text/css"><!--
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fn { margin-left: 1cm; text-indent: -1cm; }
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a:link { color: #004faf; text-decoration: none }
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a:visited { color: #672967; text-decoration: none }
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body { background: #ffffff; color: black; }
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--></style>
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</head>
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<body>
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<table border="0" cellpadding="0" cellspacing="0" width="100%">
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<tr bgcolor="#E5E5E5">
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<td valign=center>
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<a href="index.html">
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<font color="#004faf">Home</font></a>
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| <a href="classes.html">
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<font color="#004faf">All Classes</font></a>
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| <a href="mainclasses.html">
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<font color="#004faf">Main Classes</font></a>
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| <a href="annotated.html">
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<font color="#004faf">Annotated</font></a>
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| <a href="groups.html">
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<font color="#004faf">Grouped Classes</font></a>
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| <a href="functions.html">
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<font color="#004faf">Functions</font></a>
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</td>
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>An MDI Application</h1>
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<p>
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This example program is just like the application example, except
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that it provides a Multiple Document Interface (MDI).
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<p> <hr>
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<p> Header file:
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<p> <pre>/****************************************************************************
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** $Id: qt/application.h 3.3.8 edited Jan 11 14:37 $
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**
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** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
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**
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** This file is part of an example program for Qt. This example
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** program may be used, distributed and modified without limitation.
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**
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*****************************************************************************/
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#ifndef APPLICATION_H
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#define APPLICATION_H
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#include <<a href="qmainwindow-h.html">qmainwindow.h</a>>
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#include <<a href="qptrlist-h.html">qptrlist.h</a>>
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class QTextEdit;
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class QToolBar;
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class QPopupMenu;
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class QWorkspace;
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class QPopupMenu;
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class QMovie;
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class MDIWindow: public <a href="qmainwindow.html">QMainWindow</a>
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{
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<a href="metaobjects.html#Q_OBJECT">Q_OBJECT</a>
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public:
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MDIWindow( <a href="qwidget.html">QWidget</a>* parent, const char* name, int wflags );
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~MDIWindow();
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void load( const <a href="qstring.html">QString</a>& fn );
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void save();
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void saveAs();
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void print( <a href="qprinter.html">QPrinter</a>* );
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protected:
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void closeEvent( <a href="qcloseevent.html">QCloseEvent</a> * );
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signals:
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void message(const <a href="qstring.html">QString</a>&, int );
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private:
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<a href="qtextedit.html">QTextEdit</a>* medit;
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<a href="qmovie.html">QMovie</a> * mmovie;
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<a href="qstring.html">QString</a> filename;
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};
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class ApplicationWindow: public <a href="qmainwindow.html">QMainWindow</a>
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{
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Q_OBJECT
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public:
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ApplicationWindow();
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~ApplicationWindow();
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protected:
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void closeEvent( <a href="qcloseevent.html">QCloseEvent</a> * );
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private slots:
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MDIWindow* newDoc();
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void load();
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void save();
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void saveAs();
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void print();
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void closeWindow();
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void tileHorizontal();
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void about();
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void aboutQt();
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void windowsMenuAboutToShow();
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void windowsMenuActivated( int id );
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private:
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<a href="qprinter.html">QPrinter</a> *printer;
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<a href="qworkspace.html">QWorkspace</a>* ws;
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<a href="qtoolbar.html">QToolBar</a> *fileTools;
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<a href="qpopupmenu.html">QPopupMenu</a>* windowsMenu;
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};
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#endif
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</pre>
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<p> <hr>
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<p> Implementation:
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<p> <pre>/****************************************************************************
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** $Id: qt/application.cpp 3.3.8 edited Jan 11 14:37 $
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**
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** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
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**
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** This file is part of an example program for Qt. This example
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** program may be used, distributed and modified without limitation.
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**
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*****************************************************************************/
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#include "application.h"
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#include <<a href="qworkspace-h.html">qworkspace.h</a>>
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#include <<a href="qimage-h.html">qimage.h</a>>
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#include <<a href="qpixmap-h.html">qpixmap.h</a>>
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#include <<a href="qtoolbar-h.html">qtoolbar.h</a>>
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#include <<a href="qtoolbutton-h.html">qtoolbutton.h</a>>
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#include <<a href="qpopupmenu-h.html">qpopupmenu.h</a>>
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#include <<a href="qmenubar-h.html">qmenubar.h</a>>
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#include <<a href="qmovie-h.html">qmovie.h</a>>
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#include <<a href="qfile-h.html">qfile.h</a>>
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#include <<a href="qfiledialog-h.html">qfiledialog.h</a>>
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#include <<a href="qlabel-h.html">qlabel.h</a>>
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#include <<a href="qstatusbar-h.html">qstatusbar.h</a>>
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#include <<a href="qmessagebox-h.html">qmessagebox.h</a>>
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#include <<a href="qprinter-h.html">qprinter.h</a>>
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#include <<a href="qapplication-h.html">qapplication.h</a>>
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#include <<a href="qpushbutton-h.html">qpushbutton.h</a>>
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#include <<a href="qaccel-h.html">qaccel.h</a>>
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#include <<a href="qtextstream-h.html">qtextstream.h</a>>
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#include <<a href="qtextedit-h.html">qtextedit.h</a>>
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#include <<a href="qpainter-h.html">qpainter.h</a>>
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#include <<a href="qpaintdevicemetrics-h.html">qpaintdevicemetrics.h</a>>
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#include <<a href="qwhatsthis-h.html">qwhatsthis.h</a>>
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#include <<a href="qobjectlist-h.html">qobjectlist.h</a>>
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#include <<a href="qvbox-h.html">qvbox.h</a>>
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#include <<a href="qsimplerichtext-h.html">qsimplerichtext.h</a>>
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#include "filesave.xpm"
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#include "fileopen.xpm"
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#include "fileprint.xpm"
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const char * fileOpenText = "Click this button to open a <em>new file</em>. <br><br>"
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"You can also select the <b>Open command</b> from the File menu.";
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const char * fileSaveText = "Click this button to save the file you are "
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"editing. You will be prompted for a file name.\n\n"
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"You can also select the Save command from the File menu.\n\n"
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"Note that implementing this function is left as an exercise for the reader.";
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const char * filePrintText = "Click this button to print the file you "
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"are editing.\n\n"
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"You can also select the Print command from the File menu.";
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<a name="f535"></a>ApplicationWindow::ApplicationWindow()
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: <a href="qmainwindow.html">QMainWindow</a>( 0, "example application main window", WDestructiveClose )
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{
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int id;
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<a href="qpixmap.html">QPixmap</a> openIcon, saveIcon;
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fileTools = new <a href="qtoolbar.html">QToolBar</a>( this, "file operations" );
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<a href="qmainwindow.html#addToolBar">addToolBar</a>( fileTools, tr( "File Operations" ), DockTop, TRUE );
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openIcon = QPixmap( fileopen );
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QToolButton * fileOpen
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= new <a href="qtoolbutton.html">QToolButton</a>( openIcon, "Open File", <a href="qstring.html#QString-null">QString::null</a>,
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this, SLOT(load()), fileTools, "open file" );
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saveIcon = QPixmap( filesave );
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QToolButton * fileSave
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= new <a href="qtoolbutton.html">QToolButton</a>( saveIcon, "Save File", QString::null,
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this, SLOT(save()), fileTools, "save file" );
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#ifndef QT_NO_PRINTER
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printer = new <a href="qprinter.html">QPrinter</a>( QPrinter::HighResolution );
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<a href="qpixmap.html">QPixmap</a> printIcon;
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printIcon = QPixmap( fileprint );
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QToolButton * filePrint
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= new <a href="qtoolbutton.html">QToolButton</a>( printIcon, "Print File", QString::null,
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this, SLOT(print()), fileTools, "print file" );
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<a name="x2075"></a> QWhatsThis::<a href="qwhatsthis.html#add">add</a>( filePrint, filePrintText );
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#endif
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(void)QWhatsThis::whatsThisButton( fileTools );
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QWhatsThis::<a href="qwhatsthis.html#add">add</a>( fileOpen, fileOpenText );
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QWhatsThis::<a href="qwhatsthis.html#add">add</a>( fileSave, fileSaveText );
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<a href="qpopupmenu.html">QPopupMenu</a> * file = new <a href="qpopupmenu.html">QPopupMenu</a>( this );
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<a href="qmainwindow.html#menuBar">menuBar</a>()->insertItem( "&File", file );
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file-><a href="qmenudata.html#insertItem">insertItem</a>( "&New", this, SLOT(newDoc()), CTRL+Key_N );
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id = file-><a href="qmenudata.html#insertItem">insertItem</a>( openIcon, "&Open...",
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this, SLOT(load()), CTRL+Key_O );
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<a name="x2035"></a> file-><a href="qmenudata.html#setWhatsThis">setWhatsThis</a>( id, fileOpenText );
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id = file-><a href="qmenudata.html#insertItem">insertItem</a>( saveIcon, "&Save",
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this, SLOT(save()), CTRL+Key_S );
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file-><a href="qmenudata.html#setWhatsThis">setWhatsThis</a>( id, fileSaveText );
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id = file-><a href="qmenudata.html#insertItem">insertItem</a>( "Save &As...", this, SLOT(saveAs()) );
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file-><a href="qmenudata.html#setWhatsThis">setWhatsThis</a>( id, fileSaveText );
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#ifndef QT_NO_PRINTER
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file-><a href="qmenudata.html#insertSeparator">insertSeparator</a>();
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id = file-><a href="qmenudata.html#insertItem">insertItem</a>( printIcon, "&Print...",
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this, SLOT(print()), CTRL+Key_P );
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file-><a href="qmenudata.html#setWhatsThis">setWhatsThis</a>( id, filePrintText );
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#endif
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file-><a href="qmenudata.html#insertSeparator">insertSeparator</a>();
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file-><a href="qmenudata.html#insertItem">insertItem</a>( "&Close", this, SLOT(closeWindow()), CTRL+Key_W );
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<a name="x2020"></a> file-><a href="qmenudata.html#insertItem">insertItem</a>( "&Quit", qApp, SLOT( <a href="qapplication.html#closeAllWindows">closeAllWindows</a>() ), CTRL+Key_Q );
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windowsMenu = new <a href="qpopupmenu.html">QPopupMenu</a>( this );
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<a name="x2049"></a> windowsMenu-><a href="qpopupmenu.html#setCheckable">setCheckable</a>( TRUE );
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<a name="x2048"></a> <a href="qobject.html#connect">connect</a>( windowsMenu, SIGNAL( <a href="qpopupmenu.html#aboutToShow">aboutToShow</a>() ),
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this, SLOT( windowsMenuAboutToShow() ) );
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<a href="qmainwindow.html#menuBar">menuBar</a>()->insertItem( "&Windows", windowsMenu );
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<a href="qmainwindow.html#menuBar">menuBar</a>()->insertSeparator();
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<a href="qpopupmenu.html">QPopupMenu</a> * help = new <a href="qpopupmenu.html">QPopupMenu</a>( this );
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<a href="qmainwindow.html#menuBar">menuBar</a>()->insertItem( "&Help", help );
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help-><a href="qmenudata.html#insertItem">insertItem</a>( "&About", this, SLOT(about()), Key_F1);
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help-><a href="qmenudata.html#insertItem">insertItem</a>( "About &Qt", this, SLOT(aboutQt()));
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help-><a href="qmenudata.html#insertSeparator">insertSeparator</a>();
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help-><a href="qmenudata.html#insertItem">insertItem</a>( "What's &This", this, SLOT(<a href="qmainwindow.html#whatsThis">whatsThis</a>()), SHIFT+Key_F1);
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<a href="qvbox.html">QVBox</a>* vb = new <a href="qvbox.html">QVBox</a>( this );
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vb-><a href="qframe.html#setFrameStyle">setFrameStyle</a>( QFrame::StyledPanel | QFrame::Sunken );
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ws = new <a href="qworkspace.html">QWorkspace</a>( vb );
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<a name="x2092"></a> ws-><a href="qworkspace.html#setScrollBarsEnabled">setScrollBarsEnabled</a>( TRUE );
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<a href="qmainwindow.html#setCentralWidget">setCentralWidget</a>( vb );
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<a href="qmainwindow.html#statusBar">statusBar</a>()->message( "Ready", 2000 );
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}
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ApplicationWindow::~ApplicationWindow()
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{
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#ifndef QT_NO_PRINTER
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delete printer;
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#endif
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}
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MDIWindow* <a name="f536"></a>ApplicationWindow::newDoc()
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{
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MDIWindow* w = new MDIWindow( ws, 0, WDestructiveClose );
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<a href="qobject.html#connect">connect</a>( w, SIGNAL( message(const <a href="qstring.html">QString</a>&, int) ), statusBar(), SLOT( message(const <a href="qstring.html">QString</a>&, int )) );
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w-><a href="qwidget.html#setCaption">setCaption</a>("unnamed document");
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<a name="x2085"></a> w-><a href="qwidget.html#setIcon">setIcon</a>( QPixmap("document.xpm") );
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// show the very first window in maximized mode
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<a name="x2094"></a> if ( ws-><a href="qworkspace.html#windowList">windowList</a>().isEmpty() )
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<a name="x2087"></a> w-><a href="qwidget.html#showMaximized">showMaximized</a>();
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else
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w-><a href="qwidget.html#show">show</a>();
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return w;
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}
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void <a name="f537"></a>ApplicationWindow::load()
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{
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<a href="qstring.html">QString</a> fn = QFileDialog::<a href="qfiledialog.html#getOpenFileName">getOpenFileName</a>( QString::null, QString::null, this );
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if ( !fn.<a href="qstring.html#isEmpty">isEmpty</a>() ) {
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MDIWindow* w = newDoc();
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w->load( fn );
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} else {
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<a href="qmainwindow.html#statusBar">statusBar</a>()->message( "Loading aborted", 2000 );
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}
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}
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void <a name="f538"></a>ApplicationWindow::save()
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{
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<a name="x2090"></a> MDIWindow* m = (MDIWindow*)ws-><a href="qworkspace.html#activeWindow">activeWindow</a>();
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if ( m )
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m->save();
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}
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void <a name="f539"></a>ApplicationWindow::saveAs()
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{
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MDIWindow* m = (MDIWindow*)ws-><a href="qworkspace.html#activeWindow">activeWindow</a>();
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if ( m )
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m->saveAs();
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}
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void <a name="f540"></a>ApplicationWindow::print()
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{
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#ifndef QT_NO_PRINTER
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MDIWindow* m = (MDIWindow*)ws-><a href="qworkspace.html#activeWindow">activeWindow</a>();
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if ( m )
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m->print( printer );
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#endif
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}
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void <a name="f541"></a>ApplicationWindow::closeWindow()
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{
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MDIWindow* m = (MDIWindow*)ws-><a href="qworkspace.html#activeWindow">activeWindow</a>();
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if ( m )
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<a name="x2076"></a> m-><a href="qwidget.html#close">close</a>();
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}
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void <a name="f542"></a>ApplicationWindow::about()
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{
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<a name="x2036"></a> QMessageBox::<a href="qmessagebox.html#about">about</a>( this, "Qt Application Example",
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"This example demonstrates simple use of\n "
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"Qt's Multiple Document Interface (MDI).");
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}
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void <a name="f543"></a>ApplicationWindow::aboutQt()
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{
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QMessageBox::<a href="qmessagebox.html#aboutQt">aboutQt</a>( this, "Qt Application Example" );
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}
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void <a name="f544"></a>ApplicationWindow::windowsMenuAboutToShow()
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{
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<a name="x2029"></a> windowsMenu-><a href="qmenudata.html#clear">clear</a>();
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<a name="x2091"></a> int cascadeId = windowsMenu-><a href="qmenudata.html#insertItem">insertItem</a>("&Cascade", ws, SLOT(<a href="qworkspace.html#cascade">cascade</a>() ) );
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<a name="x2093"></a> int tileId = windowsMenu-><a href="qmenudata.html#insertItem">insertItem</a>("&Tile", ws, SLOT(<a href="qworkspace.html#tile">tile</a>() ) );
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int horTileId = windowsMenu-><a href="qmenudata.html#insertItem">insertItem</a>("Tile &Horizontally", this, SLOT(tileHorizontal() ) );
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if ( ws-><a href="qworkspace.html#windowList">windowList</a>().isEmpty() ) {
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<a name="x2033"></a> windowsMenu-><a href="qmenudata.html#setItemEnabled">setItemEnabled</a>( cascadeId, FALSE );
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windowsMenu-><a href="qmenudata.html#setItemEnabled">setItemEnabled</a>( tileId, FALSE );
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windowsMenu-><a href="qmenudata.html#setItemEnabled">setItemEnabled</a>( horTileId, FALSE );
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}
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windowsMenu-><a href="qmenudata.html#insertSeparator">insertSeparator</a>();
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QWidgetList windows = ws-><a href="qworkspace.html#windowList">windowList</a>();
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<a name="x2054"></a> for ( int i = 0; i < int(windows.count()); ++i ) {
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<a name="x2053"></a> int id = windowsMenu-><a href="qmenudata.html#insertItem">insertItem</a>(windows.at(i)->caption(),
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this, SLOT( windowsMenuActivated( int ) ) );
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<a name="x2034"></a> windowsMenu-><a href="qmenudata.html#setItemParameter">setItemParameter</a>( id, i );
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<a name="x2032"></a> windowsMenu-><a href="qmenudata.html#setItemChecked">setItemChecked</a>( id, ws-><a href="qworkspace.html#activeWindow">activeWindow</a>() == windows.at(i) );
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}
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}
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void <a name="f545"></a>ApplicationWindow::windowsMenuActivated( int id )
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{
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<a href="qwidget.html">QWidget</a>* w = ws-><a href="qworkspace.html#windowList">windowList</a>().at( id );
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if ( w )
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<a name="x2088"></a> w-><a href="qwidget.html#showNormal">showNormal</a>();
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<a name="x2084"></a> w-><a href="qwidget.html#setFocus">setFocus</a>();
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}
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void <a name="f546"></a>ApplicationWindow::tileHorizontal()
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{
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// primitive horizontal tiling
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QWidgetList windows = ws-><a href="qworkspace.html#windowList">windowList</a>();
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if ( !windows.count() )
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return;
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if (ws-><a href="qworkspace.html#activeWindow">activeWindow</a>())
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ws-><a href="qworkspace.html#activeWindow">activeWindow</a>()->showNormal();
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|
|
<a name="x2078"></a> int heightForEach = ws-><a href="qwidget.html#height">height</a>() / windows.count();
|
|
int y = 0;
|
|
for ( int i = 0; i < int(windows.count()); ++i ) {
|
|
<a href="qwidget.html">QWidget</a> *window = windows.at(i);
|
|
<a name="x2081"></a><a name="x2080"></a> int preferredHeight = window-><a href="qwidget.html#minimumHeight">minimumHeight</a>()+window-><a href="qwidget.html#parentWidget">parentWidget</a>()->baseSize().height();
|
|
int actHeight = QMAX(heightForEach, preferredHeight);
|
|
|
|
<a name="x2089"></a> window-><a href="qwidget.html#parentWidget">parentWidget</a>()->setGeometry( 0, y, ws-><a href="qwidget.html#width">width</a>(), actHeight );
|
|
y += actHeight;
|
|
}
|
|
}
|
|
|
|
<a name="x2077"></a>void ApplicationWindow::<a href="qwidget.html#closeEvent">closeEvent</a>( <a href="qcloseevent.html">QCloseEvent</a> *e )
|
|
{
|
|
QWidgetList windows = ws-><a href="qworkspace.html#windowList">windowList</a>();
|
|
if ( windows.count() ) {
|
|
for ( int i = 0; i < int(windows.count()); ++i ) {
|
|
<a href="qwidget.html">QWidget</a> *window = windows.at( i );
|
|
if ( !window-><a href="qwidget.html#close">close</a>() ) {
|
|
<a name="x2022"></a> e-><a href="qcloseevent.html#ignore">ignore</a>();
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
QMainWindow::<a href="qwidget.html#closeEvent">closeEvent</a>( e );
|
|
}
|
|
|
|
<a name="f547"></a>MDIWindow::MDIWindow( <a href="qwidget.html">QWidget</a>* parent, const char* name, int wflags )
|
|
: <a href="qmainwindow.html">QMainWindow</a>( parent, name, wflags )
|
|
{
|
|
mmovie = 0;
|
|
medit = new <a href="qtextedit.html">QTextEdit</a>( this );
|
|
<a href="qwidget.html#setFocusProxy">setFocusProxy</a>( medit );
|
|
<a href="qmainwindow.html#setCentralWidget">setCentralWidget</a>( medit );
|
|
}
|
|
|
|
MDIWindow::~MDIWindow()
|
|
{
|
|
delete mmovie;
|
|
}
|
|
|
|
void MDIWindow::<a href="qwidget.html#closeEvent">closeEvent</a>( <a href="qcloseevent.html">QCloseEvent</a> *e )
|
|
{
|
|
<a name="x2069"></a> if ( medit-><a href="qtextedit.html#isModified">isModified</a>() ) {
|
|
switch( QMessageBox::<a href="qmessagebox.html#warning">warning</a>( this, "Save Changes",
|
|
<a href="qobject.html#tr">tr</a>("Save changes to %1?").arg( <a href="qwidget.html#caption">caption</a>() ),
|
|
<a href="qobject.html#tr">tr</a>("Yes"), tr("No"), tr("Cancel") ) ) {
|
|
case 0:
|
|
{
|
|
save();
|
|
if ( !filename.isEmpty() )
|
|
<a name="x2021"></a> e-><a href="qcloseevent.html#accept">accept</a>();
|
|
else
|
|
e-><a href="qcloseevent.html#ignore">ignore</a>();
|
|
}
|
|
break;
|
|
case 1:
|
|
e-><a href="qcloseevent.html#accept">accept</a>();
|
|
break;
|
|
default:
|
|
e-><a href="qcloseevent.html#ignore">ignore</a>();
|
|
break;
|
|
}
|
|
} else {
|
|
e-><a href="qcloseevent.html#accept">accept</a>();
|
|
}
|
|
}
|
|
|
|
void <a name="f548"></a>MDIWindow::load( const <a href="qstring.html">QString</a>& fn )
|
|
{
|
|
filename = fn;
|
|
<a href="qfile.html">QFile</a> f( filename );
|
|
if ( !f.<a href="qfile.html#open">open</a>( <a href="qfile.html#open">IO_ReadOnly</a> ) )
|
|
return;
|
|
|
|
<a name="x2064"></a> if(fn.<a href="qstring.html#contains">contains</a>(".gif")) {
|
|
<a href="qwidget.html">QWidget</a> * tmp=new <a href="qwidget.html">QWidget</a>(this);
|
|
<a href="qwidget.html#setFocusProxy">setFocusProxy</a>(tmp);
|
|
<a href="qmainwindow.html#setCentralWidget">setCentralWidget</a>(tmp);
|
|
<a name="x2079"></a> medit-><a href="qwidget.html#hide">hide</a>();
|
|
delete medit;
|
|
<a href="qmovie.html">QMovie</a> * qm=new <a href="qmovie.html">QMovie</a>(fn);
|
|
#ifdef Q_WS_QWS // temporary speed-test hack
|
|
<a name="x2039"></a> qm->setDisplayWidget(tmp);
|
|
#endif
|
|
<a name="x2082"></a> tmp-><a href="qwidget.html#setBackgroundMode">setBackgroundMode</a>(QWidget::NoBackground);
|
|
tmp-><a href="qwidget.html#show">show</a>();
|
|
mmovie=qm;
|
|
} else {
|
|
mmovie = 0;
|
|
|
|
<a href="qtextstream.html">QTextStream</a> t(&f);
|
|
<a name="x2074"></a> <a href="qstring.html">QString</a> s = t.<a href="qtextstream.html#read">read</a>();
|
|
medit-><a href="qtextedit.html#setText">setText</a>( s );
|
|
<a name="x2023"></a> f.<a href="qfile.html#close">close</a>();
|
|
|
|
|
|
}
|
|
<a href="qwidget.html#setCaption">setCaption</a>( filename );
|
|
emit message( QString("Loaded document %1").arg(filename), 2000 );
|
|
}
|
|
|
|
void <a name="f549"></a>MDIWindow::save()
|
|
{
|
|
if ( filename.isEmpty() ) {
|
|
saveAs();
|
|
return;
|
|
}
|
|
|
|
<a name="x2073"></a> <a href="qstring.html">QString</a> text = medit-><a href="qtextedit.html#text">text</a>();
|
|
<a href="qfile.html">QFile</a> f( filename );
|
|
if ( !f.<a href="qfile.html#open">open</a>( <a href="qfile.html#open">IO_WriteOnly</a> ) ) {
|
|
emit message( QString("Could not write to %1").arg(filename),
|
|
2000 );
|
|
return;
|
|
}
|
|
|
|
<a href="qtextstream.html">QTextStream</a> t( &f );
|
|
t << text;
|
|
f.<a href="qfile.html#close">close</a>();
|
|
|
|
<a href="qwidget.html#setCaption">setCaption</a>( filename );
|
|
|
|
emit message( QString( "File %1 saved" ).arg( filename ), 2000 );
|
|
}
|
|
|
|
void <a name="f550"></a>MDIWindow::saveAs()
|
|
{
|
|
<a href="qstring.html">QString</a> fn = QFileDialog::<a href="qfiledialog.html#getSaveFileName">getSaveFileName</a>( filename, QString::null, this );
|
|
if ( !fn.<a href="qstring.html#isEmpty">isEmpty</a>() ) {
|
|
filename = fn;
|
|
save();
|
|
} else {
|
|
emit message( "Saving aborted", 2000 );
|
|
}
|
|
}
|
|
|
|
void <a name="f551"></a>MDIWindow::print( <a href="qprinter.html">QPrinter</a>* printer)
|
|
{
|
|
#ifndef QT_NO_PRINTER
|
|
int pageNo = 1;
|
|
|
|
<a name="x2052"></a> if ( printer-><a href="qprinter.html#setup">setup</a>(this) ) { // printer dialog
|
|
<a name="x2051"></a> printer-><a href="qprinter.html#setFullPage">setFullPage</a>( TRUE );
|
|
emit message( "Printing...", 0 );
|
|
<a href="qpainter.html">QPainter</a> p;
|
|
if ( !p.<a href="qpainter.html#begin">begin</a>( printer ) )
|
|
return; // paint on printer
|
|
<a name="x2044"></a> <a href="qpaintdevicemetrics.html">QPaintDeviceMetrics</a> metrics( p.<a href="qpainter.html#device">device</a>() );
|
|
<a name="x2041"></a> int dpiy = metrics.<a href="qpaintdevicemetrics.html#logicalDpiY">logicalDpiY</a>();
|
|
int margin = (int) ( (2/2.54)*dpiy ); // 2 cm margins
|
|
<a name="x2042"></a><a name="x2040"></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 );
|
|
<a name="x2067"></a> <a href="qsimplerichtext.html">QSimpleRichText</a> richText( QStyleSheet::<a href="qstylesheet.html#convertFromPlainText">convertFromPlainText</a>(medit-><a href="qtextedit.html#text">text</a>()),
|
|
QFont(),
|
|
<a name="x2068"></a> medit-><a href="qtextedit.html#context">context</a>(),
|
|
<a name="x2072"></a> medit-><a href="qtextedit.html#styleSheet">styleSheet</a>(),
|
|
<a name="x2070"></a> medit-><a href="qtextedit.html#mimeSourceFactory">mimeSourceFactory</a>(),
|
|
view.<a href="qrect.html#height">height</a>() );
|
|
<a name="x2063"></a> richText.<a href="qsimplerichtext.html#setWidth">setWidth</a>( &p, view.<a href="qrect.html#width">width</a>() );
|
|
int page = 1;
|
|
do {
|
|
<a name="x2061"></a> richText.<a href="qsimplerichtext.html#draw">draw</a>( &p, margin, margin, view, colorGroup() );
|
|
<a name="x2057"></a> view.<a href="qrect.html#moveBy">moveBy</a>( 0, view.<a href="qrect.html#height">height</a>() );
|
|
p.<a href="qpainter.html#translate">translate</a>( 0 , -view.<a href="qrect.html#height">height</a>() );
|
|
<a name="x2066"></a><a name="x2046"></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 ) ),
|
|
view.<a href="qrect.html#bottom">bottom</a>() + p.<a href="qpainter.html#fontMetrics">fontMetrics</a>().ascent() + 5, QString::number( page ) );
|
|
<a name="x2062"></a> if ( view.<a href="qrect.html#top">top</a>() - margin >= richText.<a href="qsimplerichtext.html#height">height</a>() )
|
|
break;
|
|
<a href="qstring.html">QString</a> msg( "Printing (page " );
|
|
msg += QString::<a href="qstring.html#number">number</a>( ++pageNo );
|
|
msg += ")...";
|
|
emit message( msg, 0 );
|
|
<a name="x2050"></a> printer-><a href="qprinter.html#newPage">newPage</a>();
|
|
page++;
|
|
} while (TRUE);
|
|
}
|
|
#endif
|
|
}
|
|
</pre>
|
|
|
|
<p> <hr>
|
|
<p> Main:
|
|
<p> <pre>/****************************************************************************
|
|
** $Id: qt/main.cpp 3.3.8 edited Jan 11 14:37 $
|
|
**
|
|
** Copyright (C) 1992-2007 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 <<a href="qapplication-h.html">qapplication.h</a>>
|
|
#include "application.h"
|
|
|
|
int main( int argc, char ** argv ) {
|
|
<a href="qapplication.html">QApplication</a> a( argc, argv );
|
|
ApplicationWindow * mw = new ApplicationWindow();
|
|
a.<a href="qapplication.html#setMainWidget">setMainWidget</a>(mw);
|
|
mw-><a href="qwidget.html#setCaption">setCaption</a>( "Qt Example - Multiple Documents Interface (MDI)" );
|
|
mw-><a href="qwidget.html#show">show</a>();
|
|
<a name="x2097"></a><a name="x2096"></a> a.<a href="qobject.html#connect">connect</a>( &a, SIGNAL(<a href="qapplication.html#lastWindowClosed">lastWindowClosed</a>()), &a, SLOT(<a href="qapplication.html#quit">quit</a>()) );
|
|
int res = a.<a href="qapplication.html#exec">exec</a>();
|
|
return res;
|
|
}
|
|
</pre>
|
|
|
|
<p>See also <a href="examples.html">Examples</a>.
|
|
|
|
<!-- eof -->
|
|
<p><address><hr><div align=center>
|
|
<table width=100% cellspacing=0 border=0><tr>
|
|
<td>Copyright © 2007
|
|
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
|
|
<td align=right><div align=right>Qt 3.3.8</div>
|
|
</table></div></address></body>
|
|
</html>
|