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     2 **

     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

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     7 ** This file is part of the documentation of the Qt Toolkit.

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     9 ** $QT_BEGIN_LICENSE:LGPL$

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    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

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    38 ** $QT_END_LICENSE$

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    40 ****************************************************************************/

    41 

    42 #include <QtGui>

    43 

    44 #include "mainwindow.h"

    45 

    46 MainWindow::MainWindow()

    47 {

    48     QMenu *fileMenu = new QMenu(tr("&File"));

    49 

    50     fileMenu->addAction(tr("E&xit"), this, SLOT(close()),

    51         QKeySequence(tr("Ctrl+Q", "File|Exit")));

    52 

    53     QMenu *editMenu = new QMenu(tr("&Edit"));

    54 

    55     cutAction = editMenu->addAction(tr("Cu&t"), this, SLOT(cutSelection()),

    56         QKeySequence(tr("Ctrl+X", "Edit|Cut")));

    57     copyAction = editMenu->addAction(tr("&Copy"), this, SLOT(copySelection()),

    58         QKeySequence(tr("Ctrl+C", "Edit|Copy")));

    59     pasteAction = editMenu->addAction(tr("&Paste"), this,

    60         SLOT(pasteSelection()), QKeySequence(tr("Ctrl+V", "Edit|Paste")));

    61 

    62     QMenu *selectMenu = new QMenu(tr("&Select"));

    63     selectMenu->addAction(tr("&Word"), this, SLOT(selectWord()));

    64     selectMenu->addAction(tr("&Line"), this, SLOT(selectLine()));

    65     selectMenu->addAction(tr("&Block"), this, SLOT(selectBlock()));

    66     selectMenu->addAction(tr("&Frame"), this, SLOT(selectFrame()));

    67 

    68     QMenu *insertMenu = new QMenu(tr("&Insert"));

    69 

    70     insertMenu->addAction(tr("&List"), this, SLOT(insertList()),

    71         QKeySequence(tr("Ctrl+L", "Insert|List")));

    72 

    73     menuBar()->addMenu(fileMenu);

    74     menuBar()->addMenu(editMenu);

    75     menuBar()->addMenu(selectMenu);

    76     menuBar()->addMenu(insertMenu);

    77 

    78     editor = new QTextEdit(this);

    79     document = new QTextDocument(this);

    80     editor->setDocument(document);

    81 

    82     connect(editor, SIGNAL(selectionChanged()), this, SLOT(updateMenus()));

    83 

    84     updateMenus();

    85 

    86     setCentralWidget(editor);

    87     setWindowTitle(tr("Text Document Writer"));

    88 }

    89 

    90 void MainWindow::cutSelection()

    91 {

    92     QTextCursor cursor = editor->textCursor();

    93     if (cursor.hasSelection()) {

    94         selection = cursor.selection();

    95         cursor.removeSelectedText();

    96     }

    97 }

    98 

    99 void MainWindow::copySelection()

   100 {

   101     QTextCursor cursor = editor->textCursor();

   102     if (cursor.hasSelection()) {

   103         selection = cursor.selection();

   104         cursor.clearSelection();

   105     }

   106 }

   107 

   108 void MainWindow::pasteSelection()

   109 {

   110     QTextCursor cursor = editor->textCursor();

   111     cursor.insertFragment(selection);

   112 }

   113 

   114 void MainWindow::selectWord()

   115 {

   116     QTextCursor cursor = editor->textCursor();

   117     QTextBlock block = cursor.block();

   118 

   119     cursor.beginEditBlock();

   120     cursor.movePosition(QTextCursor::StartOfWord);

   121     cursor.movePosition(QTextCursor::EndOfWord, QTextCursor::KeepAnchor);

   122     cursor.endEditBlock();

   123 

   124     editor->setTextCursor(cursor);

   125 }

   126 

   127 void MainWindow::selectLine()

   128 {

   129     QTextCursor cursor = editor->textCursor();

   130     QTextBlock block = cursor.block();

   131 

   132     cursor.beginEditBlock();

   133     cursor.movePosition(QTextCursor::StartOfLine);

   134     cursor.movePosition(QTextCursor::EndOfLine, QTextCursor::KeepAnchor);

   135     cursor.endEditBlock();

   136 

   137     editor->setTextCursor(cursor);

   138 }

   139 

   140 void MainWindow::selectBlock()

   141 {

   142     QTextCursor cursor = editor->textCursor();

   143     QTextBlock block = cursor.block();

   144 

   145     cursor.beginEditBlock();

   146     cursor.movePosition(QTextCursor::StartOfBlock);

   147     cursor.movePosition(QTextCursor::EndOfBlock, QTextCursor::KeepAnchor);

   148     cursor.endEditBlock();

   149 

   150     editor->setTextCursor(cursor);

   151 }

   152 

   153 void MainWindow::selectFrame()

   154 {

   155     QTextCursor cursor = editor->textCursor();

   156     QTextFrame *frame = cursor.currentFrame();

   157 

   158     cursor.beginEditBlock();

   159     cursor.setPosition(frame->firstPosition());

   160     cursor.setPosition(frame->lastPosition(), QTextCursor::KeepAnchor);

   161     cursor.endEditBlock();

   162 

   163     editor->setTextCursor(cursor);

   164 }

   165 

   166 void MainWindow::insertList()

   167 {

   168     QTextCursor cursor = editor->textCursor();

   169     cursor.beginEditBlock();

   170 

   171     QTextList *list = cursor.currentList();

   172 //! [0]

   173     QTextListFormat listFormat;

   174     if (list) {

   175         listFormat = list->format();

   176         listFormat.setIndent(listFormat.indent() + 1);

   177     }

   178 

   179     listFormat.setStyle(QTextListFormat::ListDisc);

   180     cursor.insertList(listFormat);

   181 //! [0]

   182 

   183     cursor.endEditBlock();

   184 }

   185 

   186 void MainWindow::updateMenus()

   187 {

   188     QTextCursor cursor = editor->textCursor();

   189     cutAction->setEnabled(cursor.hasSelection());

   190     copyAction->setEnabled(cursor.hasSelection());

   191 

   192     pasteAction->setEnabled(!selection.isEmpty());

   193 }