From 806dda08d685bc5f9ed71dfe8b61f21848d48066 Mon Sep 17 00:00:00 2001 From: Gabriel de Dietrich Date: Fri, 17 Aug 2012 13:23:19 +0200 Subject: Moving .qdoc files under examples/widgets/doc Updated those .qdoc files to refer to the new relative examples emplacement. Images and snippets to be moved later. Also grouped all widgets related examples under widgets. Change-Id: Ib29696e2d8948524537f53e8dda88f9ee26a597f Reviewed-by: J-P Nurmi --- examples/widgets/widgets/codeeditor/codeeditor.cpp | 170 +++++++++++++++++++++ .../widgets/widgets/codeeditor/codeeditor.desktop | 11 ++ examples/widgets/widgets/codeeditor/codeeditor.h | 105 +++++++++++++ examples/widgets/widgets/codeeditor/codeeditor.pro | 11 ++ examples/widgets/widgets/codeeditor/main.cpp | 55 +++++++ 5 files changed, 352 insertions(+) create mode 100644 examples/widgets/widgets/codeeditor/codeeditor.cpp create mode 100644 examples/widgets/widgets/codeeditor/codeeditor.desktop create mode 100644 examples/widgets/widgets/codeeditor/codeeditor.h create mode 100644 examples/widgets/widgets/codeeditor/codeeditor.pro create mode 100644 examples/widgets/widgets/codeeditor/main.cpp (limited to 'examples/widgets/widgets/codeeditor') diff --git a/examples/widgets/widgets/codeeditor/codeeditor.cpp b/examples/widgets/widgets/codeeditor/codeeditor.cpp new file mode 100644 index 0000000000..2a2750c035 --- /dev/null +++ b/examples/widgets/widgets/codeeditor/codeeditor.cpp @@ -0,0 +1,170 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include + +#include "codeeditor.h" + +//![constructor] + +CodeEditor::CodeEditor(QWidget *parent) : QPlainTextEdit(parent) +{ + lineNumberArea = new LineNumberArea(this); + + connect(this, SIGNAL(blockCountChanged(int)), this, SLOT(updateLineNumberAreaWidth(int))); + connect(this, SIGNAL(updateRequest(QRect,int)), this, SLOT(updateLineNumberArea(QRect,int))); + connect(this, SIGNAL(cursorPositionChanged()), this, SLOT(highlightCurrentLine())); + + updateLineNumberAreaWidth(0); + highlightCurrentLine(); +} + +//![constructor] + +//![extraAreaWidth] + +int CodeEditor::lineNumberAreaWidth() +{ + int digits = 1; + int max = qMax(1, blockCount()); + while (max >= 10) { + max /= 10; + ++digits; + } + + int space = 3 + fontMetrics().width(QLatin1Char('9')) * digits; + + return space; +} + +//![extraAreaWidth] + +//![slotUpdateExtraAreaWidth] + +void CodeEditor::updateLineNumberAreaWidth(int /* newBlockCount */) +{ + setViewportMargins(lineNumberAreaWidth(), 0, 0, 0); +} + +//![slotUpdateExtraAreaWidth] + +//![slotUpdateRequest] + +void CodeEditor::updateLineNumberArea(const QRect &rect, int dy) +{ + if (dy) + lineNumberArea->scroll(0, dy); + else + lineNumberArea->update(0, rect.y(), lineNumberArea->width(), rect.height()); + + if (rect.contains(viewport()->rect())) + updateLineNumberAreaWidth(0); +} + +//![slotUpdateRequest] + +//![resizeEvent] + +void CodeEditor::resizeEvent(QResizeEvent *e) +{ + QPlainTextEdit::resizeEvent(e); + + QRect cr = contentsRect(); + lineNumberArea->setGeometry(QRect(cr.left(), cr.top(), lineNumberAreaWidth(), cr.height())); +} + +//![resizeEvent] + +//![cursorPositionChanged] + +void CodeEditor::highlightCurrentLine() +{ + QList extraSelections; + + if (!isReadOnly()) { + QTextEdit::ExtraSelection selection; + + QColor lineColor = QColor(Qt::yellow).lighter(160); + + selection.format.setBackground(lineColor); + selection.format.setProperty(QTextFormat::FullWidthSelection, true); + selection.cursor = textCursor(); + selection.cursor.clearSelection(); + extraSelections.append(selection); + } + + setExtraSelections(extraSelections); +} + +//![cursorPositionChanged] + +//![extraAreaPaintEvent_0] + +void CodeEditor::lineNumberAreaPaintEvent(QPaintEvent *event) +{ + QPainter painter(lineNumberArea); + painter.fillRect(event->rect(), Qt::lightGray); + +//![extraAreaPaintEvent_0] + +//![extraAreaPaintEvent_1] + QTextBlock block = firstVisibleBlock(); + int blockNumber = block.blockNumber(); + int top = (int) blockBoundingGeometry(block).translated(contentOffset()).top(); + int bottom = top + (int) blockBoundingRect(block).height(); +//![extraAreaPaintEvent_1] + +//![extraAreaPaintEvent_2] + while (block.isValid() && top <= event->rect().bottom()) { + if (block.isVisible() && bottom >= event->rect().top()) { + QString number = QString::number(blockNumber + 1); + painter.setPen(Qt::black); + painter.drawText(0, top, lineNumberArea->width(), fontMetrics().height(), + Qt::AlignRight, number); + } + + block = block.next(); + top = bottom; + bottom = top + (int) blockBoundingRect(block).height(); + ++blockNumber; + } +} +//![extraAreaPaintEvent_2] + diff --git a/examples/widgets/widgets/codeeditor/codeeditor.desktop b/examples/widgets/widgets/codeeditor/codeeditor.desktop new file mode 100644 index 0000000000..9347479e11 --- /dev/null +++ b/examples/widgets/widgets/codeeditor/codeeditor.desktop @@ -0,0 +1,11 @@ +[Desktop Entry] +Encoding=UTF-8 +Version=1.0 +Type=Application +Terminal=false +Name=Code Editor +Exec=/opt/usr/bin/codeeditor +Icon=codeeditor +X-Window-Icon= +X-HildonDesk-ShowInToolbar=true +X-Osso-Type=application/x-executable diff --git a/examples/widgets/widgets/codeeditor/codeeditor.h b/examples/widgets/widgets/codeeditor/codeeditor.h new file mode 100644 index 0000000000..71de46ed61 --- /dev/null +++ b/examples/widgets/widgets/codeeditor/codeeditor.h @@ -0,0 +1,105 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef CODEEDITOR_H +#define CODEEDITOR_H + +#include +#include + +QT_BEGIN_NAMESPACE +class QPaintEvent; +class QResizeEvent; +class QSize; +class QWidget; +QT_END_NAMESPACE + +class LineNumberArea; + +//![codeeditordefinition] + +class CodeEditor : public QPlainTextEdit +{ + Q_OBJECT + +public: + CodeEditor(QWidget *parent = 0); + + void lineNumberAreaPaintEvent(QPaintEvent *event); + int lineNumberAreaWidth(); + +protected: + void resizeEvent(QResizeEvent *event); + +private slots: + void updateLineNumberAreaWidth(int newBlockCount); + void highlightCurrentLine(); + void updateLineNumberArea(const QRect &, int); + +private: + QWidget *lineNumberArea; +}; + +//![codeeditordefinition] +//![extraarea] + +class LineNumberArea : public QWidget +{ +public: + LineNumberArea(CodeEditor *editor) : QWidget(editor) { + codeEditor = editor; + } + + QSize sizeHint() const { + return QSize(codeEditor->lineNumberAreaWidth(), 0); + } + +protected: + void paintEvent(QPaintEvent *event) { + codeEditor->lineNumberAreaPaintEvent(event); + } + +private: + CodeEditor *codeEditor; +}; + +//![extraarea] + +#endif diff --git a/examples/widgets/widgets/codeeditor/codeeditor.pro b/examples/widgets/widgets/codeeditor/codeeditor.pro new file mode 100644 index 0000000000..ec38770cc6 --- /dev/null +++ b/examples/widgets/widgets/codeeditor/codeeditor.pro @@ -0,0 +1,11 @@ +HEADERS = codeeditor.h +SOURCES = main.cpp \ + codeeditor.cpp +# install +target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/widgets/codeeditor +sources.files = $$SOURCES $$HEADERS *.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/widgets/codeeditor +INSTALLS += target sources + +QT += widgets + diff --git a/examples/widgets/widgets/codeeditor/main.cpp b/examples/widgets/widgets/codeeditor/main.cpp new file mode 100644 index 0000000000..8c60c26f06 --- /dev/null +++ b/examples/widgets/widgets/codeeditor/main.cpp @@ -0,0 +1,55 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor +** the names of its contributors may be used to endorse or promote +** products derived from this software without specific prior written +** permission. +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include + +#include "codeeditor.h" + +int main(int argv, char **args) +{ + QApplication app(argv, args); + + CodeEditor editor; + editor.setWindowTitle(QObject::tr("Code Editor Example")); + editor.show(); + + return app.exec(); +} + -- cgit v1.2.3