diff options
author | Lars Knoll <lars.knoll@nokia.com> | 2009-03-23 09:34:13 (GMT) |
---|---|---|
committer | Simon Hausmann <simon.hausmann@nokia.com> | 2009-03-23 09:34:13 (GMT) |
commit | 67ad0519fd165acee4a4d2a94fa502e9e4847bd0 (patch) | |
tree | 1dbf50b3dff8d5ca7e9344733968c72704eb15ff /demos/qtdemo/demotextitem.cpp | |
download | Qt-67ad0519fd165acee4a4d2a94fa502e9e4847bd0.zip Qt-67ad0519fd165acee4a4d2a94fa502e9e4847bd0.tar.gz Qt-67ad0519fd165acee4a4d2a94fa502e9e4847bd0.tar.bz2 |
Long live Qt!
Diffstat (limited to 'demos/qtdemo/demotextitem.cpp')
-rw-r--r-- | demos/qtdemo/demotextitem.cpp | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/demos/qtdemo/demotextitem.cpp b/demos/qtdemo/demotextitem.cpp new file mode 100644 index 0000000..cd549fc --- /dev/null +++ b/demos/qtdemo/demotextitem.cpp @@ -0,0 +1,123 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the demonstration applications of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "demotextitem.h" +#include "colors.h" + +DemoTextItem::DemoTextItem(const QString &text, const QFont &font, const QColor &textColor, + float textWidth, QGraphicsScene *scene, QGraphicsItem *parent, TYPE type, const QColor &bgColor) + : DemoItem(scene, parent) +{ + this->type = type; + this->text = text; + this->font = font; + this->textColor = textColor; + this->bgColor = bgColor; + this->textWidth = textWidth; + this->noSubPixeling = true; +} + +void DemoTextItem::setText(const QString &text) +{ + this->text = text; + this->update(); +} + +QImage *DemoTextItem::createImage(const QMatrix &matrix) const +{ + if (this->type == DYNAMIC_TEXT) + return 0; + + float sx = qMin(matrix.m11(), matrix.m22()); + float sy = matrix.m22() < sx ? sx : matrix.m22(); + + QGraphicsTextItem textItem(0, 0); + textItem.setHtml(this->text); + textItem.setTextWidth(this->textWidth); + textItem.setFont(this->font); + textItem.setDefaultTextColor(this->textColor); + textItem.document()->setDocumentMargin(2); + + float w = textItem.boundingRect().width(); + float h = textItem.boundingRect().height(); + QImage *image = new QImage(int(w * sx), int(h * sy), QImage::Format_ARGB32_Premultiplied); + image->fill(QColor(0, 0, 0, 0).rgba()); + QPainter painter(image); + painter.scale(sx, sy); + QStyleOptionGraphicsItem style; + textItem.paint(&painter, &style, 0); + return image; +} + + +void DemoTextItem::animationStarted(int) +{ + this->noSubPixeling = false; +} + + +void DemoTextItem::animationStopped(int) +{ + this->noSubPixeling = true; +} + +QRectF DemoTextItem::boundingRect() const + +{ + if (this->type == STATIC_TEXT) + return DemoItem::boundingRect(); + return QRectF(0, 0, 50, 20); // Sorry for using magic number +} + + +void DemoTextItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) +{ + Q_UNUSED(option); + Q_UNUSED(widget); + + if (this->type == STATIC_TEXT) { + DemoItem::paint(painter, option, widget); + return; + } + + painter->setPen(this->textColor); + painter->drawText(0, 0, this->text); +} |