File indexing completed on 2024-04-28 04:20:27

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_COLOR_PICKER_H
0030 #define KP_TOOL_COLOR_PICKER_H
0031 
0032 
0033 #include "imagelib/kpColor.h"
0034 #include "tools/kpTool.h"
0035 
0036 
0037 class QPoint;
0038 class QRect;
0039 
0040 
0041 class kpToolColorPicker : public kpTool
0042 {
0043 Q_OBJECT
0044 
0045 public:
0046     kpToolColorPicker (kpToolEnvironment *environ, QObject *parent);
0047     ~kpToolColorPicker () override;
0048 
0049     // generally the user goes to pick a color but wants to return to using
0050     // his/her previous drawing tool
0051     bool returnToPreviousToolAfterEndDraw () const override { return true; }
0052 
0053 private:
0054     kpColor colorAtPixel (const QPoint &p);
0055 
0056     QString haventBegunDrawUserMessage () const;
0057 
0058 public:
0059     void begin () override;
0060     void beginDraw () override;
0061     void draw (const QPoint &thisPoint, const QPoint &, const QRect &) override;
0062     void cancelShape () override;
0063     void releasedAllButtons () override;
0064     void endDraw (const QPoint &thisPoint, const QRect &) override;
0065 
0066 private:
0067     kpColor m_oldColor;
0068 };
0069 
0070 
0071 #endif  // KP_TOOL_COLOR_PICKER_H