5635823e17
As in the past, to avoid rewriting various autotests that contain line-number information, an extra blank line has been inserted at the end of the license text to ensure that this commit does not change the total number of lines in the license header. Change-Id: I311e001373776812699d6efc045b5f742890c689 Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
115 lines
3.9 KiB
C++
115 lines
3.9 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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** the names of its contributors may be used to endorse or promote
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** products derived from this software without specific prior written
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** permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef TABLETCANVAS_H
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#define TABLETCANVAS_H
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#include <QWidget>
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#include <QPixmap>
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#include <QPoint>
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#include <QTabletEvent>
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#include <QColor>
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#include <QBrush>
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#include <QPen>
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#include <QPoint>
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QT_BEGIN_NAMESPACE
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class QPaintEvent;
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class QString;
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QT_END_NAMESPACE
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//! [0]
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class TabletCanvas : public QWidget
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{
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Q_OBJECT
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public:
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enum AlphaChannelType { AlphaPressure, AlphaTilt, NoAlpha };
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enum ColorSaturationType { SaturationVTilt, SaturationHTilt,
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SaturationPressure, NoSaturation };
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enum LineWidthType { LineWidthPressure, LineWidthTilt, NoLineWidth };
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TabletCanvas();
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bool saveImage(const QString &file);
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bool loadImage(const QString &file);
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void setAlphaChannelType(AlphaChannelType type)
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{ alphaChannelType = type; }
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void setColorSaturationType(ColorSaturationType type)
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{ colorSaturationType = type; }
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void setLineWidthType(LineWidthType type)
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{ lineWidthType = type; }
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void setColor(const QColor &color)
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{ myColor = color; }
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QColor color() const
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{ return myColor; }
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void setTabletDevice(QTabletEvent::TabletDevice device)
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{ myTabletDevice = device; }
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int maximum(int a, int b)
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{ return a > b ? a : b; }
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protected:
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void tabletEvent(QTabletEvent *event);
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void paintEvent(QPaintEvent *event);
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void resizeEvent(QResizeEvent *event);
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private:
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void initPixmap();
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void paintPixmap(QPainter &painter, QTabletEvent *event);
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Qt::BrushStyle brushPattern(qreal value);
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void updateBrush(QTabletEvent *event);
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AlphaChannelType alphaChannelType;
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ColorSaturationType colorSaturationType;
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LineWidthType lineWidthType;
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QTabletEvent::PointerType pointerType;
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QTabletEvent::TabletDevice myTabletDevice;
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QColor myColor;
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QPixmap pixmap;
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QBrush myBrush;
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QPen myPen;
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bool deviceDown;
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QPoint polyLine[3];
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};
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//! [0]
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#endif
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