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| author | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-07-10 15:24:15 -0500 |
|---|---|---|
| committer | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-07-10 15:24:15 -0500 |
| commit | bd0f3345a938b35ce6a12f6150373b0955b8dd12 (patch) | |
| tree | 7a520322212d48ebcb9fbe1087e7fca28b76185c /doc/html/mdi-example.html | |
| download | qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.tar.gz qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.zip | |
Add Qt3 development HEAD version
Diffstat (limited to 'doc/html/mdi-example.html')
| -rw-r--r-- | doc/html/mdi-example.html | 600 |
1 files changed, 600 insertions, 0 deletions
diff --git a/doc/html/mdi-example.html b/doc/html/mdi-example.html new file mode 100644 index 0000000..1fea1ec --- /dev/null +++ b/doc/html/mdi-example.html @@ -0,0 +1,600 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> +<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/examples/mdi/mdi.doc:4 --> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> +<title>An MDI Application</title> +<style type="text/css"><!-- +fn { margin-left: 1cm; text-indent: -1cm; } +a:link { color: #004faf; text-decoration: none } +a:visited { color: #672967; text-decoration: none } +body { background: #ffffff; color: black; } +--></style> +</head> +<body> + +<table border="0" cellpadding="0" cellspacing="0" width="100%"> +<tr bgcolor="#E5E5E5"> +<td valign=center> + <a href="index.html"> +<font color="#004faf">Home</font></a> + | <a href="classes.html"> +<font color="#004faf">All Classes</font></a> + | <a href="mainclasses.html"> +<font color="#004faf">Main Classes</font></a> + | <a href="annotated.html"> +<font color="#004faf">Annotated</font></a> + | <a href="groups.html"> +<font color="#004faf">Grouped Classes</font></a> + | <a href="functions.html"> +<font color="#004faf">Functions</font></a> +</td> +<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> + + +<p> +This example program is just like the application example, except +that it provides a Multiple Document Interface (MDI). +<p> <hr> +<p> Header file: +<p> <pre>/**************************************************************************** +** $Id: qt/application.h 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. +** +*****************************************************************************/ + +#ifndef APPLICATION_H +#define APPLICATION_H + +#include <<a href="qmainwindow-h.html">qmainwindow.h</a>> +#include <<a href="qptrlist-h.html">qptrlist.h</a>> + +class QTextEdit; +class QToolBar; +class QPopupMenu; +class QWorkspace; +class QPopupMenu; +class QMovie; + +class MDIWindow: public <a href="qmainwindow.html">QMainWindow</a> +{ + <a href="metaobjects.html#Q_OBJECT">Q_OBJECT</a> +public: + MDIWindow( <a href="qwidget.html">QWidget</a>* parent, const char* name, int wflags ); + ~MDIWindow(); + + void load( const <a href="qstring.html">QString</a>& fn ); + void save(); + void saveAs(); + void print( <a href="qprinter.html">QPrinter</a>* ); + +protected: + void closeEvent( <a href="qcloseevent.html">QCloseEvent</a> * ); + +signals: + void message(const <a href="qstring.html">QString</a>&, int ); + +private: + <a href="qtextedit.html">QTextEdit</a>* medit; + <a href="qmovie.html">QMovie</a> * mmovie; + <a href="qstring.html">QString</a> filename; +}; + + +class ApplicationWindow: public <a href="qmainwindow.html">QMainWindow</a> +{ + Q_OBJECT +public: + ApplicationWindow(); + ~ApplicationWindow(); + +protected: + void closeEvent( <a href="qcloseevent.html">QCloseEvent</a> * ); + +private slots: + MDIWindow* newDoc(); + void load(); + void save(); + void saveAs(); + void print(); + void closeWindow(); + void tileHorizontal(); + + void about(); + void aboutQt(); + + void windowsMenuAboutToShow(); + void windowsMenuActivated( int id ); + +private: + <a href="qprinter.html">QPrinter</a> *printer; + <a href="qworkspace.html">QWorkspace</a>* ws; + <a href="qtoolbar.html">QToolBar</a> *fileTools; + <a href="qpopupmenu.html">QPopupMenu</a>* windowsMenu; +}; + + +#endif +</pre> + +<p> <hr> +<p> Implementation: +<p> <pre>/**************************************************************************** +** $Id: qt/application.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 "application.h" +#include <<a href="qworkspace-h.html">qworkspace.h</a>> +#include <<a href="qimage-h.html">qimage.h</a>> +#include <<a href="qpixmap-h.html">qpixmap.h</a>> +#include <<a href="qtoolbar-h.html">qtoolbar.h</a>> +#include <<a href="qtoolbutton-h.html">qtoolbutton.h</a>> +#include <<a href="qpopupmenu-h.html">qpopupmenu.h</a>> +#include <<a href="qmenubar-h.html">qmenubar.h</a>> +#include <<a href="qmovie-h.html">qmovie.h</a>> +#include <<a href="qfile-h.html">qfile.h</a>> +#include <<a href="qfiledialog-h.html">qfiledialog.h</a>> +#include <<a href="qlabel-h.html">qlabel.h</a>> +#include <<a href="qstatusbar-h.html">qstatusbar.h</a>> +#include <<a href="qmessagebox-h.html">qmessagebox.h</a>> +#include <<a href="qprinter-h.html">qprinter.h</a>> +#include <<a href="qapplication-h.html">qapplication.h</a>> +#include <<a href="qpushbutton-h.html">qpushbutton.h</a>> +#include <<a href="qaccel-h.html">qaccel.h</a>> +#include <<a href="qtextstream-h.html">qtextstream.h</a>> +#include <<a href="qtextedit-h.html">qtextedit.h</a>> +#include <<a href="qpainter-h.html">qpainter.h</a>> +#include <<a href="qpaintdevicemetrics-h.html">qpaintdevicemetrics.h</a>> +#include <<a href="qwhatsthis-h.html">qwhatsthis.h</a>> +#include <<a href="qobjectlist-h.html">qobjectlist.h</a>> +#include <<a href="qvbox-h.html">qvbox.h</a>> +#include <<a href="qsimplerichtext-h.html">qsimplerichtext.h</a>> + +#include "filesave.xpm" +#include "fileopen.xpm" +#include "fileprint.xpm" + + +const char * fileOpenText = "Click this button to open a <em>new file</em>. <br><br>" +"You can also select the <b>Open command</b> from the File menu."; +const char * fileSaveText = "Click this button to save the file you are " +"editing. You will be prompted for a file name.\n\n" +"You can also select the Save command from the File menu.\n\n" +"Note that implementing this function is left as an exercise for the reader."; +const char * filePrintText = "Click this button to print the file you " +"are editing.\n\n" +"You can also select the Print command from the File menu."; + +<a name="f535"></a>ApplicationWindow::ApplicationWindow() + : <a href="qmainwindow.html">QMainWindow</a>( 0, "example application main window", WDestructiveClose ) +{ + int id; + + <a href="qpixmap.html">QPixmap</a> openIcon, saveIcon; + + fileTools = new <a href="qtoolbar.html">QToolBar</a>( this, "file operations" ); + <a href="qmainwindow.html#addToolBar">addToolBar</a>( fileTools, tr( "File Operations" ), DockTop, TRUE ); + + openIcon = QPixmap( fileopen ); + QToolButton * fileOpen + = new <a href="qtoolbutton.html">QToolButton</a>( openIcon, "Open File", <a href="qstring.html#QString-null">QString::null</a>, + this, SLOT(load()), fileTools, "open file" ); + + saveIcon = QPixmap( filesave ); + QToolButton * fileSave + = new <a href="qtoolbutton.html">QToolButton</a>( saveIcon, "Save File", QString::null, + this, SLOT(save()), fileTools, "save file" ); + +#ifndef QT_NO_PRINTER + printer = new <a href="qprinter.html">QPrinter</a>( QPrinter::HighResolution ); + <a href="qpixmap.html">QPixmap</a> printIcon; + + printIcon = QPixmap( fileprint ); + QToolButton * filePrint + = new <a href="qtoolbutton.html">QToolButton</a>( printIcon, "Print File", QString::null, + this, SLOT(print()), fileTools, "print file" ); +<a name="x2075"></a> QWhatsThis::<a href="qwhatsthis.html#add">add</a>( filePrint, filePrintText ); +#endif + + (void)QWhatsThis::whatsThisButton( fileTools ); + + QWhatsThis::<a href="qwhatsthis.html#add">add</a>( fileOpen, fileOpenText ); + QWhatsThis::<a href="qwhatsthis.html#add">add</a>( fileSave, fileSaveText ); + + <a href="qpopupmenu.html">QPopupMenu</a> * file = new <a href="qpopupmenu.html">QPopupMenu</a>( this ); + <a href="qmainwindow.html#menuBar">menuBar</a>()->insertItem( "&File", file ); + + file-><a href="qmenudata.html#insertItem">insertItem</a>( "&New", this, SLOT(newDoc()), CTRL+Key_N ); + + id = file-><a href="qmenudata.html#insertItem">insertItem</a>( openIcon, "&Open...", + this, SLOT(load()), CTRL+Key_O ); +<a name="x2035"></a> file-><a href="qmenudata.html#setWhatsThis">setWhatsThis</a>( id, fileOpenText ); + + id = file-><a href="qmenudata.html#insertItem">insertItem</a>( saveIcon, "&Save", + this, SLOT(save()), CTRL+Key_S ); + file-><a href="qmenudata.html#setWhatsThis">setWhatsThis</a>( id, fileSaveText ); + id = file-><a href="qmenudata.html#insertItem">insertItem</a>( "Save &As...", this, SLOT(saveAs()) ); + file-><a href="qmenudata.html#setWhatsThis">setWhatsThis</a>( id, fileSaveText ); +#ifndef QT_NO_PRINTER + file-><a href="qmenudata.html#insertSeparator">insertSeparator</a>(); + id = file-><a href="qmenudata.html#insertItem">insertItem</a>( printIcon, "&Print...", + this, SLOT(print()), CTRL+Key_P ); + file-><a href="qmenudata.html#setWhatsThis">setWhatsThis</a>( id, filePrintText ); +#endif + file-><a href="qmenudata.html#insertSeparator">insertSeparator</a>(); + file-><a href="qmenudata.html#insertItem">insertItem</a>( "&Close", this, SLOT(closeWindow()), CTRL+Key_W ); +<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 ); + + windowsMenu = new <a href="qpopupmenu.html">QPopupMenu</a>( this ); +<a name="x2049"></a> windowsMenu-><a href="qpopupmenu.html#setCheckable">setCheckable</a>( TRUE ); +<a name="x2048"></a> <a href="qobject.html#connect">connect</a>( windowsMenu, SIGNAL( <a href="qpopupmenu.html#aboutToShow">aboutToShow</a>() ), + this, SLOT( windowsMenuAboutToShow() ) ); + <a href="qmainwindow.html#menuBar">menuBar</a>()->insertItem( "&Windows", windowsMenu ); + + <a href="qmainwindow.html#menuBar">menuBar</a>()->insertSeparator(); + <a href="qpopupmenu.html">QPopupMenu</a> * help = new <a href="qpopupmenu.html">QPopupMenu</a>( this ); + <a href="qmainwindow.html#menuBar">menuBar</a>()->insertItem( "&Help", help ); + + help-><a href="qmenudata.html#insertItem">insertItem</a>( "&About", this, SLOT(about()), Key_F1); + help-><a href="qmenudata.html#insertItem">insertItem</a>( "About &Qt", this, SLOT(aboutQt())); + help-><a href="qmenudata.html#insertSeparator">insertSeparator</a>(); + help-><a href="qmenudata.html#insertItem">insertItem</a>( "What's &This", this, SLOT(<a href="qmainwindow.html#whatsThis">whatsThis</a>()), SHIFT+Key_F1); + + <a href="qvbox.html">QVBox</a>* vb = new <a href="qvbox.html">QVBox</a>( this ); + vb-><a href="qframe.html#setFrameStyle">setFrameStyle</a>( QFrame::StyledPanel | QFrame::Sunken ); + ws = new <a href="qworkspace.html">QWorkspace</a>( vb ); +<a name="x2092"></a> ws-><a href="qworkspace.html#setScrollBarsEnabled">setScrollBarsEnabled</a>( TRUE ); + <a href="qmainwindow.html#setCentralWidget">setCentralWidget</a>( vb ); + + <a href="qmainwindow.html#statusBar">statusBar</a>()->message( "Ready", 2000 ); +} + + +ApplicationWindow::~ApplicationWindow() +{ +#ifndef QT_NO_PRINTER + delete printer; +#endif +} + + + +MDIWindow* <a name="f536"></a>ApplicationWindow::newDoc() +{ + MDIWindow* w = new MDIWindow( ws, 0, WDestructiveClose ); + <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 )) ); + w-><a href="qwidget.html#setCaption">setCaption</a>("unnamed document"); +<a name="x2085"></a> w-><a href="qwidget.html#setIcon">setIcon</a>( QPixmap("document.xpm") ); + // show the very first window in maximized mode +<a name="x2094"></a> if ( ws-><a href="qworkspace.html#windowList">windowList</a>().isEmpty() ) +<a name="x2087"></a> w-><a href="qwidget.html#showMaximized">showMaximized</a>(); + else + w-><a href="qwidget.html#show">show</a>(); + return w; +} + +void <a name="f537"></a>ApplicationWindow::load() +{ + <a href="qstring.html">QString</a> fn = QFileDialog::<a href="qfiledialog.html#getOpenFileName">getOpenFileName</a>( QString::null, QString::null, this ); + if ( !fn.<a href="qstring.html#isEmpty">isEmpty</a>() ) { + MDIWindow* w = newDoc(); + w->load( fn ); + } else { + <a href="qmainwindow.html#statusBar">statusBar</a>()->message( "Loading aborted", 2000 ); + } +} + +void <a name="f538"></a>ApplicationWindow::save() +{ +<a name="x2090"></a> MDIWindow* m = (MDIWindow*)ws-><a href="qworkspace.html#activeWindow">activeWindow</a>(); + if ( m ) + m->save(); +} + + +void <a name="f539"></a>ApplicationWindow::saveAs() +{ + MDIWindow* m = (MDIWindow*)ws-><a href="qworkspace.html#activeWindow">activeWindow</a>(); + if ( m ) + m->saveAs(); +} + + +void <a name="f540"></a>ApplicationWindow::print() +{ +#ifndef QT_NO_PRINTER + MDIWindow* m = (MDIWindow*)ws-><a href="qworkspace.html#activeWindow">activeWindow</a>(); + if ( m ) + m->print( printer ); +#endif +} + + +void <a name="f541"></a>ApplicationWindow::closeWindow() +{ + MDIWindow* m = (MDIWindow*)ws-><a href="qworkspace.html#activeWindow">activeWindow</a>(); + if ( m ) +<a name="x2076"></a> m-><a href="qwidget.html#close">close</a>(); +} + +void <a name="f542"></a>ApplicationWindow::about() +{ +<a name="x2036"></a> QMessageBox::<a href="qmessagebox.html#about">about</a>( this, "Qt Application Example", + "This example demonstrates simple use of\n " + "Qt's Multiple Document Interface (MDI)."); +} + + +void <a name="f543"></a>ApplicationWindow::aboutQt() +{ + QMessageBox::<a href="qmessagebox.html#aboutQt">aboutQt</a>( this, "Qt Application Example" ); +} + + +void <a name="f544"></a>ApplicationWindow::windowsMenuAboutToShow() +{ +<a name="x2029"></a> windowsMenu-><a href="qmenudata.html#clear">clear</a>(); +<a name="x2091"></a> int cascadeId = windowsMenu-><a href="qmenudata.html#insertItem">insertItem</a>("&Cascade", ws, SLOT(<a href="qworkspace.html#cascade">cascade</a>() ) ); +<a name="x2093"></a> int tileId = windowsMenu-><a href="qmenudata.html#insertItem">insertItem</a>("&Tile", ws, SLOT(<a href="qworkspace.html#tile">tile</a>() ) ); + int horTileId = windowsMenu-><a href="qmenudata.html#insertItem">insertItem</a>("Tile &Horizontally", this, SLOT(tileHorizontal() ) ); + if ( ws-><a href="qworkspace.html#windowList">windowList</a>().isEmpty() ) { +<a name="x2033"></a> windowsMenu-><a href="qmenudata.html#setItemEnabled">setItemEnabled</a>( cascadeId, FALSE ); + windowsMenu-><a href="qmenudata.html#setItemEnabled">setItemEnabled</a>( tileId, FALSE ); + windowsMenu-><a href="qmenudata.html#setItemEnabled">setItemEnabled</a>( horTileId, FALSE ); + } + windowsMenu-><a href="qmenudata.html#insertSeparator">insertSeparator</a>(); + QWidgetList windows = ws-><a href="qworkspace.html#windowList">windowList</a>(); +<a name="x2054"></a> for ( int i = 0; i < int(windows.count()); ++i ) { +<a name="x2053"></a> int id = windowsMenu-><a href="qmenudata.html#insertItem">insertItem</a>(windows.at(i)->caption(), + this, SLOT( windowsMenuActivated( int ) ) ); +<a name="x2034"></a> windowsMenu-><a href="qmenudata.html#setItemParameter">setItemParameter</a>( id, i ); +<a name="x2032"></a> windowsMenu-><a href="qmenudata.html#setItemChecked">setItemChecked</a>( id, ws-><a href="qworkspace.html#activeWindow">activeWindow</a>() == windows.at(i) ); + } +} + +void <a name="f545"></a>ApplicationWindow::windowsMenuActivated( int id ) +{ + <a href="qwidget.html">QWidget</a>* w = ws-><a href="qworkspace.html#windowList">windowList</a>().at( id ); + if ( w ) +<a name="x2088"></a> w-><a href="qwidget.html#showNormal">showNormal</a>(); +<a name="x2084"></a> w-><a href="qwidget.html#setFocus">setFocus</a>(); +} + +void <a name="f546"></a>ApplicationWindow::tileHorizontal() +{ + // primitive horizontal tiling + QWidgetList windows = ws-><a href="qworkspace.html#windowList">windowList</a>(); + if ( !windows.count() ) + return; + + if (ws-><a href="qworkspace.html#activeWindow">activeWindow</a>()) + ws-><a href="qworkspace.html#activeWindow">activeWindow</a>()->showNormal(); + +<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> |