From d796c9dd933ab96ec83b9a634feedd5d32e1ba3f Mon Sep 17 00:00:00 2001 From: Timothy Pearson Date: Tue, 8 Nov 2011 12:31:36 -0600 Subject: Test conversion to TQt3 from Qt3 8c6fc1f8e35fd264dd01c582ca5e7549b32ab731 --- doc/html/mdi-example.html | 600 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 600 insertions(+) create mode 100644 doc/html/mdi-example.html (limited to 'doc/html/mdi-example.html') diff --git a/doc/html/mdi-example.html b/doc/html/mdi-example.html new file mode 100644 index 00000000..58f68c77 --- /dev/null +++ b/doc/html/mdi-example.html @@ -0,0 +1,600 @@ + + + + + +An MDI Application + + + + + + + +
+ +Home + | +All Classes + | +Main Classes + | +Annotated + | +Grouped Classes + | +Functions +

An MDI Application

+ + +

+This example program is just like the application example, except +that it provides a Multiple Document Interface (MDI). +

+

Header file: +

/****************************************************************************
+** $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 TQt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#ifndef APPLICATION_H
+#define APPLICATION_H
+
+#include <qmainwindow.h>
+#include <qptrlist.h>
+
+class TQTextEdit;
+class TQToolBar;
+class TQPopupMenu;
+class TQWorkspace;
+class TQPopupMenu;
+class TQMovie;
+
+class MDIWindow: public TQMainWindow
+{
+    Q_OBJECT
+public:
+    MDIWindow( TQWidget* parent, const char* name, int wflags );
+    ~MDIWindow();
+
+    void load( const TQString& fn );
+    void save();
+    void saveAs();
+    void print( TQPrinter* );
+
+protected:
+    void closeEvent( TQCloseEvent * );
+
+signals:
+    void message(const TQString&, int );
+
+private:
+    TQTextEdit* medit;
+    TQMovie * mmovie;
+    TQString filename;
+};
+
+
+class ApplicationWindow: public TQMainWindow
+{
+    Q_OBJECT
+public:
+    ApplicationWindow();
+    ~ApplicationWindow();
+
+protected:
+    void closeEvent( TQCloseEvent * );
+
+private slots:
+    MDIWindow* newDoc();
+    void load();
+    void save();
+    void saveAs();
+    void print();
+    void closeWindow();
+    void tileHorizontal();
+
+    void about();
+    void aboutTQt();
+
+    void windowsMenuAboutToShow();
+    void windowsMenuActivated( int id );
+
+private:
+    TQPrinter *printer;
+    TQWorkspace* ws;
+    TQToolBar *fileTools;
+    TQPopupMenu* windowsMenu;
+};
+
+
+#endif
+
+ +

+

Implementation: +

/****************************************************************************
+** $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 TQt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#include "application.h"
+#include <qworkspace.h>
+#include <qimage.h>
+#include <qpixmap.h>
+#include <qtoolbar.h>
+#include <qtoolbutton.h>
+#include <qpopupmenu.h>
+#include <qmenubar.h>
+#include <qmovie.h>
+#include <qfile.h>
+#include <qfiledialog.h>
+#include <qlabel.h>
+#include <qstatusbar.h>
+#include <qmessagebox.h>
+#include <qprinter.h>
+#include <qapplication.h>
+#include <qpushbutton.h>
+#include <qaccel.h>
+#include <qtextstream.h>
+#include <qtextedit.h>
+#include <qpainter.h>
+#include <qpaintdevicemetrics.h>
+#include <qwhatsthis.h>
+#include <qobjectlist.h>
+#include <qvbox.h>
+#include <qsimplerichtext.h>
+
+#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.";
+
+ApplicationWindow::ApplicationWindow()
+    : TQMainWindow( 0, "example application main window", WDestructiveClose )
+{
+    int id;
+
+    TQPixmap openIcon, saveIcon;
+
+    fileTools = new TQToolBar( this, "file operations" );
+    addToolBar( fileTools, tr( "File Operations" ), DockTop, TRUE );
+
+    openIcon = TQPixmap( fileopen );
+    TQToolButton * fileOpen
+        = new TQToolButton( openIcon, "Open File", TQString::null,
+                           this, SLOT(load()), fileTools, "open file" );
+
+    saveIcon = TQPixmap( filesave );
+    TQToolButton * fileSave
+        = new TQToolButton( saveIcon, "Save File", TQString::null,
+                           this, SLOT(save()), fileTools, "save file" );
+
+#ifndef QT_NO_PRINTER
+    printer = new TQPrinter( TQPrinter::HighResolution );
+    TQPixmap printIcon;
+
+    printIcon = TQPixmap( fileprint );
+    TQToolButton * filePrint
+        = new TQToolButton( printIcon, "Print File", TQString::null,
+                           this, SLOT(print()), fileTools, "print file" );
+    TQWhatsThis::add( filePrint, filePrintText );
+#endif
+
+    (void)TQWhatsThis::whatsThisButton( fileTools );
+
+    TQWhatsThis::add( fileOpen, fileOpenText );
+    TQWhatsThis::add( fileSave, fileSaveText );
+
+    TQPopupMenu * file = new TQPopupMenu( this );
+    menuBar()->insertItem( "&File", file );
+
+    file->insertItem( "&New", this, SLOT(newDoc()), CTRL+Key_N );
+
+    id = file->insertItem( openIcon, "&Open...",
+                           this, SLOT(load()), CTRL+Key_O );
+    file->setWhatsThis( id, fileOpenText );
+
+    id = file->insertItem( saveIcon, "&Save",
+                           this, SLOT(save()), CTRL+Key_S );
+    file->setWhatsThis( id, fileSaveText );
+    id = file->insertItem( "Save &As...", this, SLOT(saveAs()) );
+    file->setWhatsThis( id, fileSaveText );
+#ifndef QT_NO_PRINTER
+    file->insertSeparator();
+    id = file->insertItem( printIcon, "&Print...",
+                           this, SLOT(print()), CTRL+Key_P );
+    file->setWhatsThis( id, filePrintText );
+#endif
+    file->insertSeparator();
+    file->insertItem( "&Close", this, SLOT(closeWindow()), CTRL+Key_W );
+    file->insertItem( "&Quit", qApp, SLOT( closeAllWindows() ), CTRL+Key_Q );
+
+    windowsMenu = new TQPopupMenu( this );
+    windowsMenu->setCheckable( TRUE );
+    connect( windowsMenu, SIGNAL( aboutToShow() ),
+             this, SLOT( windowsMenuAboutToShow() ) );
+    menuBar()->insertItem( "&Windows", windowsMenu );
+
+    menuBar()->insertSeparator();
+    TQPopupMenu * help = new TQPopupMenu( this );
+    menuBar()->insertItem( "&Help", help );
+
+    help->insertItem( "&About", this, SLOT(about()), Key_F1);
+    help->insertItem( "About &TQt", this, SLOT(aboutTQt()));
+    help->insertSeparator();
+    help->insertItem( "What's &This", this, SLOT(whatsThis()), SHIFT+Key_F1);
+
+    TQVBox* vb = new TQVBox( this );
+    vb->setFrameStyle( TQFrame::StyledPanel | TQFrame::Sunken );
+    ws = new TQWorkspace( vb );
+    ws->setScrollBarsEnabled( TRUE );
+    setCentralWidget( vb );
+
+    statusBar()->message( "Ready", 2000 );
+}
+
+
+ApplicationWindow::~ApplicationWindow()
+{
+#ifndef QT_NO_PRINTER
+    delete printer;
+#endif
+}
+
+
+
+MDIWindow* ApplicationWindow::newDoc()
+{
+    MDIWindow* w = new MDIWindow( ws, 0, WDestructiveClose );
+    connect( w, SIGNAL( message(const TQString&, int) ), statusBar(), SLOT( message(const TQString&, int )) );
+    w->setCaption("unnamed document");
+    w->setIcon( TQPixmap("document.xpm") );
+    // show the very first window in maximized mode
+    if ( ws->windowList().isEmpty() )
+        w->showMaximized();
+    else
+        w->show();
+    return w;
+}
+
+void ApplicationWindow::load()
+{
+    TQString fn = TQFileDialog::getOpenFileName( TQString::null, TQString::null, this );
+    if ( !fn.isEmpty() ) {
+        MDIWindow* w = newDoc();
+        w->load( fn );
+    }  else {
+        statusBar()->message( "Loading aborted", 2000 );
+    }
+}
+
+void ApplicationWindow::save()
+{
+    MDIWindow* m = (MDIWindow*)ws->activeWindow();
+    if ( m )
+        m->save();
+}
+
+
+void ApplicationWindow::saveAs()
+{
+    MDIWindow* m = (MDIWindow*)ws->activeWindow();
+    if ( m )
+        m->saveAs();
+}
+
+
+void ApplicationWindow::print()
+{
+#ifndef QT_NO_PRINTER
+    MDIWindow* m = (MDIWindow*)ws->activeWindow();
+    if ( m )
+        m->print( printer );
+#endif
+}
+
+
+void ApplicationWindow::closeWindow()
+{
+    MDIWindow* m = (MDIWindow*)ws->activeWindow();
+    if ( m )
+        m->close();
+}
+
+void ApplicationWindow::about()
+{
+    TQMessageBox::about( this, "TQt Application Example",
+                        "This example demonstrates simple use of\n "
+                        "TQt's Multiple Document Interface (MDI).");
+}
+
+
+void ApplicationWindow::aboutTQt()
+{
+    TQMessageBox::aboutTQt( this, "TQt Application Example" );
+}
+
+
+void ApplicationWindow::windowsMenuAboutToShow()
+{
+    windowsMenu->clear();
+    int cascadeId = windowsMenu->insertItem("&Cascade", ws, SLOT(cascade() ) );
+    int tileId = windowsMenu->insertItem("&Tile", ws, SLOT(tile() ) );
+    int horTileId = windowsMenu->insertItem("Tile &Horizontally", this, SLOT(tileHorizontal() ) );
+    if ( ws->windowList().isEmpty() ) {
+        windowsMenu->setItemEnabled( cascadeId, FALSE );
+        windowsMenu->setItemEnabled( tileId, FALSE );
+        windowsMenu->setItemEnabled( horTileId, FALSE );
+    }
+    windowsMenu->insertSeparator();
+    TQWidgetList windows = ws->windowList();
+    for ( int i = 0; i < int(windows.count()); ++i ) {
+        int id = windowsMenu->insertItem(windows.at(i)->caption(),
+                                         this, SLOT( windowsMenuActivated( int ) ) );
+        windowsMenu->setItemParameter( id, i );
+        windowsMenu->setItemChecked( id, ws->activeWindow() == windows.at(i) );
+    }
+}
+
+void ApplicationWindow::windowsMenuActivated( int id )
+{
+    TQWidget* w = ws->windowList().at( id );
+    if ( w )
+        w->showNormal();
+    w->setFocus();
+}
+
+void ApplicationWindow::tileHorizontal()
+{
+    // primitive horizontal tiling
+    TQWidgetList windows = ws->windowList();
+    if ( !windows.count() )
+        return;
+
+    if (ws->activeWindow())
+        ws->activeWindow()->showNormal();
+
+    int heightForEach = ws->height() / windows.count();
+    int y = 0;
+    for ( int i = 0; i < int(windows.count()); ++i ) {
+        TQWidget *window = windows.at(i);
+        int preferredHeight = window->minimumHeight()+window->parentWidget()->baseSize().height();
+        int actHeight = TQMAX(heightForEach, preferredHeight);
+
+        window->parentWidget()->setGeometry( 0, y, ws->width(), actHeight );
+        y += actHeight;
+    }
+}
+
+void ApplicationWindow::closeEvent( TQCloseEvent *e )
+{
+    TQWidgetList windows = ws->windowList();
+    if ( windows.count() ) {
+        for ( int i = 0; i < int(windows.count()); ++i ) {
+            TQWidget *window = windows.at( i );
+            if ( !window->close() ) {
+                e->ignore();
+                return;
+            }
+        }
+    }
+
+    TQMainWindow::closeEvent( e );
+}
+
+MDIWindow::MDIWindow( TQWidget* parent, const char* name, int wflags )
+    : TQMainWindow( parent, name, wflags )
+{
+    mmovie = 0;
+    medit = new TQTextEdit( this );
+    setFocusProxy( medit );
+    setCentralWidget( medit );
+}
+
+MDIWindow::~MDIWindow()
+{
+    delete mmovie;
+}
+
+void MDIWindow::closeEvent( TQCloseEvent *e )
+{
+    if ( medit->isModified() ) {
+        switch( TQMessageBox::warning( this, "Save Changes",
+            tr("Save changes to %1?").arg( caption() ),
+            tr("Yes"), tr("No"), tr("Cancel") ) ) {
+        case 0:
+            {
+                save();
+                if ( !filename.isEmpty() )
+                    e->accept();
+                else
+                    e->ignore();
+            }
+            break;
+        case 1:
+            e->accept();
+            break;
+        default:
+            e->ignore();
+            break;
+        }
+    } else {
+        e->accept();
+    }
+}
+
+void MDIWindow::load( const TQString& fn )
+{
+    filename  = fn;
+    TQFile f( filename );
+    if ( !f.open( IO_ReadOnly ) )
+        return;
+
+    if(fn.contains(".gif")) {
+        TQWidget * tmp=new TQWidget(this);
+        setFocusProxy(tmp);
+        setCentralWidget(tmp);
+        medit->hide();
+        delete medit;
+        TQMovie * qm=new TQMovie(fn);
+#ifdef Q_WS_QWS // temporary speed-test hack
+        qm->setDisplayWidget(tmp);
+#endif
+        tmp->setBackgroundMode(TQWidget::NoBackground);
+        tmp->show();
+        mmovie=qm;
+    } else {
+        mmovie = 0;
+
+        TQTextStream t(&f);
+        TQString s = t.read();
+        medit->setText( s );
+        f.close();
+
+
+    }
+    setCaption( filename );
+    emit message( TQString("Loaded document %1").arg(filename), 2000 );
+}
+
+void MDIWindow::save()
+{
+    if ( filename.isEmpty() ) {
+        saveAs();
+        return;
+    }
+
+    TQString text = medit->text();
+    TQFile f( filename );
+    if ( !f.open( IO_WriteOnly ) ) {
+        emit message( TQString("Could not write to %1").arg(filename),
+                      2000 );
+        return;
+    }
+
+    TQTextStream t( &f );
+    t << text;
+    f.close();
+
+    setCaption( filename );
+
+    emit message( TQString( "File %1 saved" ).arg( filename ), 2000 );
+}
+
+void MDIWindow::saveAs()
+{
+    TQString fn = TQFileDialog::getSaveFileName( filename, TQString::null, this );
+    if ( !fn.isEmpty() ) {
+        filename = fn;
+        save();
+    } else {
+        emit message( "Saving aborted", 2000 );
+    }
+}
+
+void MDIWindow::print( TQPrinter* printer)
+{
+#ifndef QT_NO_PRINTER
+    int pageNo = 1;
+
+    if ( printer->setup(this) ) {               // printer dialog
+        printer->setFullPage( TRUE );
+        emit message( "Printing...", 0 );
+        TQPainter p;
+        if ( !p.begin( printer ) )
+            return;                             // paint on printer
+        TQPaintDeviceMetrics metrics( p.device() );
+        int dpiy = metrics.logicalDpiY();
+        int margin = (int) ( (2/2.54)*dpiy ); // 2 cm margins
+        TQRect view( margin, margin, metrics.width() - 2*margin, metrics.height() - 2*margin );
+        TQSimpleRichText richText( TQStyleSheet::convertFromPlainText(medit->text()),
+                                  TQFont(),
+                                  medit->context(),
+                                  medit->styleSheet(),
+                                  medit->mimeSourceFactory(),
+                                  view.height() );
+        richText.setWidth( &p, view.width() );
+        int page = 1;
+        do {
+            richText.draw( &p, margin, margin, view, colorGroup() );
+            view.moveBy( 0, view.height() );
+            p.translate( 0 , -view.height() );
+            p.drawText( view.right() - p.fontMetrics().width( TQString::number( page ) ),
+                        view.bottom() + p.fontMetrics().ascent() + 5, TQString::number( page ) );
+            if ( view.top() - margin >= richText.height() )
+                break;
+            TQString msg( "Printing (page " );
+            msg += TQString::number( ++pageNo );
+            msg += ")...";
+            emit message( msg, 0 );
+            printer->newPage();
+            page++;
+        } while (TRUE);
+    }
+#endif
+}
+
+ +

+

Main: +

/****************************************************************************
+** $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 TQt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#include <qapplication.h>
+#include "application.h"
+
+int main( int argc, char ** argv ) {
+    TQApplication a( argc, argv );
+    ApplicationWindow * mw = new ApplicationWindow();
+    a.setMainWidget(mw);
+    mw->setCaption( "TQt Example - Multiple Documents Interface (MDI)" );
+    mw->show();
+    a.connect( &a, SIGNAL(lastWindowClosed()), &a, SLOT(tquit()) );
+    int res = a.exec();
+    return res;
+}
+
+ +

See also Examples. + + +

+ +
Copyright © 2007 +TrolltechTrademarks +
TQt 3.3.8
+
+ -- cgit v1.2.1