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0001 
0002 /*
0003    Copyright (c) 2003-2007 Clarence Dang <dang@kde.org>
0004    All rights reserved.
0005 
0006    Redistribution and use in source and binary forms, with or without
0007    modification, are permitted provided that the following conditions
0008    are met:
0009 
0010    1. Redistributions of source code must retain the above copyright
0011       notice, this list of conditions and the following disclaimer.
0012    2. Redistributions in binary form must reproduce the above copyright
0013       notice, this list of conditions and the following disclaimer in the
0014       documentation and/or other materials provided with the distribution.
0015 
0016    THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
0017    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
0018    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
0019    IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
0020    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
0021    NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
0022    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
0023    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
0024    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
0025    THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
0026 */
0027 
0028 
0029 #ifndef KP_TOOL_RECTANGULAR_BASE_H
0030 #define KP_TOOL_RECTANGULAR_BASE_H
0031 
0032 
0033 #include "imagelib/kpImage.h"
0034 #include "tools/kpTool.h"
0035 
0036 
0037 class QPoint;
0038 class QRect;
0039 class QString;
0040 
0041 class kpColor;
0042 
0043 
0044 struct kpToolRectangularBasePrivate;
0045 
0046 
0047 // it turns out that these shapes are all really the same thing
0048 // (same options, same feel) - the only real difference is the
0049 // drawing function i.e. drawShape().
0050 class kpToolRectangularBase : public kpTool
0051 {
0052 Q_OBJECT
0053 
0054 public:
0055     typedef void (*DrawShapeFunc) (kpImage * /*image*/,
0056         int /*x*/, int /*y*/, int /*width*/, int /*height*/,
0057         const kpColor &/*fcolor*/, int /*penWidth = 1*/,
0058         const kpColor &/*bcolor = kpColor::Invalid*/);
0059 
0060     kpToolRectangularBase (const QString &text, const QString &description,
0061         DrawShapeFunc drawShapeFunc,
0062         int key,
0063         kpToolEnvironment *environ, QObject *parent,
0064         const QString &name);
0065 
0066     ~kpToolRectangularBase () override;
0067 
0068     bool careAboutModifierState () const override { return true; }
0069 
0070 private Q_SLOTS:
0071     virtual void slotLineWidthChanged ();
0072     virtual void slotFillStyleChanged ();
0073 
0074 private:
0075     QString haventBegunDrawUserMessage () const;
0076 
0077 public:
0078     void begin () override;
0079     void end () override;
0080 
0081 private:
0082     void applyModifiers ();
0083     void beginDraw () override;
0084 private:
0085     kpColor drawingForegroundColor () const;
0086     kpColor drawingBackgroundColor () const;
0087     void updateShape ();
0088 public:
0089     void draw (const QPoint &, const QPoint &, const QRect &) override;
0090     void cancelShape () override;
0091     void releasedAllButtons () override;
0092     void endDraw (const QPoint &, const QRect &) override;
0093 
0094 private:
0095     kpToolRectangularBasePrivate * const d;
0096 };
0097 
0098 
0099 #endif  // KP_TOOL_RECTANGULAR_BASE_H