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diff --git a/kolourpaint/widgets/kpcolortoolbar.h b/kolourpaint/widgets/kpcolortoolbar.h
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+++ b/kolourpaint/widgets/kpcolortoolbar.h
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+
+/*
+   Copyright (c) 2003,2004,2005 Clarence Dang <dang@kde.org>
+   All rights reserved.
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+
+   1. Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+   2. 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.
+
+   THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
+*/
+
+
+#ifndef __kp_color_toolbar_h__
+#define __kp_color_toolbar_h__
+
+
+#include <qframe.h>
+#include <qwidget.h>
+
+#include <kcolordialog.h>
+#include <ktoolbar.h>
+
+#include <kpcolor.h>
+#include <kpcolorsimilaritycube.h>
+
+
+class QGridLayout;
+class KColorButton;
+
+class kpColorSimilarityCube;
+class kpMainWindow;
+
+
+//
+// Widget similar to KDualColorButton.
+// Main differences:
+// - more consistent feel with other KolourPaint widgets
+//   (esp. kpColorPalette)
+// - displays the transparent colour using the special pixmap
+//   used by kpTransparentColorCell
+// - no obscure "current" colour
+//
+class kpDualColorButton : public QFrame
+{
+Q_OBJECT
+
+public:
+    kpDualColorButton (kpMainWindow *mainWindow,
+                       QWidget *parent, const char *name = 0);
+    virtual ~kpDualColorButton ();
+
+    kpColor color (int which) const;
+    kpColor foregroundColor () const;
+    kpColor backgroundColor () const;
+
+public slots:
+    void setColor (int which, const kpColor &color);
+    void setForegroundColor (const kpColor &color);
+    void setBackgroundColor (const kpColor &color);
+
+signals:
+    // If you connect to this signal, ignore the following
+    // foregroundColorChanged() and backgroundColorChanged() signals
+    void colorsSwapped (const kpColor &newForegroundColor,
+                        const kpColor &newBackgroundColor);
+
+    void foregroundColorChanged (const kpColor &color);
+    void backgroundColorChanged (const kpColor &color);
+
+public:
+    // (only valid in slots connected to foregroundColorChanged())
+    kpColor oldForegroundColor () const;
+    // (only valid in slots connected to backgroundColorChanged())
+    kpColor oldBackgroundColor () const;
+
+public:
+    virtual QSize sizeHint () const;
+
+protected:
+    QRect swapPixmapRect () const;
+    QRect foregroundBackgroundRect () const;
+    QRect foregroundRect () const;
+    QRect backgroundRect () const;
+
+    //virtual void dragEnterEvent (QDragEnterEvent *e);
+    virtual void dragMoveEvent (QDragMoveEvent *e);
+    virtual void dropEvent (QDropEvent *e);
+
+    virtual void mousePressEvent (QMouseEvent *e);
+    virtual void mouseDoubleClickEvent (QMouseEvent *e);
+    virtual void mouseReleaseEvent (QMouseEvent *e);
+
+    virtual void drawContents (QPainter *p);
+
+    kpMainWindow *m_mainWindow;
+    kpColor m_color [2];
+    kpColor m_oldColor [2];
+    QPixmap *m_backBuffer;
+};
+
+
+class kpColorCells : public KColorCells
+{
+Q_OBJECT
+
+public:
+    kpColorCells (QWidget *parent,
+                  Qt::Orientation o = Qt::Horizontal,
+                  const char *name = 0);
+    virtual ~kpColorCells ();
+
+    Qt::Orientation orientation () const;
+    void setOrientation (Qt::Orientation o);
+
+signals:
+    void foregroundColorChanged (const QColor &color);
+    void backgroundColorChanged (const QColor &color);
+
+    // lazy
+    void foregroundColorChanged (const kpColor &color);
+    void backgroundColorChanged (const kpColor &color);
+
+protected:
+    Qt::Orientation m_orientation;
+
+    virtual void dropEvent (QDropEvent *e);
+    virtual void paintCell (QPainter *painter, int row, int col);
+    virtual void mouseReleaseEvent (QMouseEvent *e);
+    virtual void resizeEvent (QResizeEvent *e);
+
+    int m_mouseButton;
+
+protected slots:
+    void slotColorSelected (int cell);
+    void slotColorDoubleClicked (int cell);
+};
+
+
+class kpTransparentColorCell : public QFrame
+{
+Q_OBJECT
+
+public:
+    kpTransparentColorCell (QWidget *parent, const char *name = 0);
+    virtual ~kpTransparentColorCell ();
+
+    virtual QSize sizeHint () const;
+
+signals:
+    void transparentColorSelected (int mouseButton);
+
+    // lazy
+    void foregroundColorChanged (const kpColor &color);
+    void backgroundColorChanged (const kpColor &color);
+
+protected:
+    virtual void mousePressEvent (QMouseEvent *e);
+    virtual void mouseReleaseEvent (QMouseEvent *e);
+
+    virtual void drawContents (QPainter *p);
+
+    QPixmap m_pixmap;
+};
+
+
+class kpColorPalette : public QWidget
+{
+Q_OBJECT
+
+public:
+    kpColorPalette (QWidget *parent,
+                    Qt::Orientation o = Qt::Horizontal,
+                    const char *name = 0);
+    virtual ~kpColorPalette ();
+
+    Qt::Orientation orientation () const;
+    void setOrientation (Qt::Orientation o);
+
+signals:
+    void foregroundColorChanged (const kpColor &color);
+    void backgroundColorChanged (const kpColor &color);
+
+protected:
+    Qt::Orientation m_orientation;
+
+    QBoxLayout *m_boxLayout;
+    kpTransparentColorCell *m_transparentColorCell;
+    kpColorCells *m_colorCells;
+};
+
+
+class kpColorSimilarityToolBarItem : public kpColorSimilarityCube
+{
+Q_OBJECT
+
+public:
+    kpColorSimilarityToolBarItem (kpMainWindow *mainWindow,
+                                  QWidget *parent,
+                                  const char *name = 0);
+    virtual ~kpColorSimilarityToolBarItem ();
+
+public:
+    int processedColorSimilarity () const;
+
+public slots:
+    void setColorSimilarity (double similarity);
+
+signals:
+    void colorSimilarityChanged (double similarity, int processedSimilarity);
+
+public:
+    // (only valid in slots connected to colorSimilarityChanged());
+    double oldColorSimilarity () const;
+
+private:
+    virtual void mousePressEvent (QMouseEvent *e);
+    virtual void mouseDoubleClickEvent (QMouseEvent *e);
+
+private:
+    kpMainWindow *m_mainWindow;
+
+    double m_oldColorSimilarity;
+    int m_processedColorSimilarity;
+};
+
+
+class kpColorToolBar : public KToolBar
+{
+Q_OBJECT
+
+public:
+    kpColorToolBar (const QString &label, kpMainWindow *mainWindow, const char *name = 0);
+    virtual ~kpColorToolBar ();
+
+    kpColor color (int which) const;
+    void setColor (int which, const kpColor &color);
+
+    kpColor foregroundColor () const;
+    kpColor backgroundColor () const;
+
+    double colorSimilarity () const;
+    void setColorSimilarity (double similarity);
+    int processedColorSimilarity () const;
+
+signals:
+    // If you connect to this signal, ignore the following
+    // foregroundColorChanged() and backgroundColorChanged() signals
+    void colorsSwapped (const kpColor &newForegroundColor,
+                        const kpColor &newBackgroundColor);
+
+    void foregroundColorChanged (const kpColor &color);
+    void backgroundColorChanged (const kpColor &color);
+    void colorSimilarityChanged (double similarity, int processedSimilarity);
+
+public:
+    // (only valid in slots connected to foregroundColorChanged())
+    kpColor oldForegroundColor () const;
+    // (only valid in slots connected to backgroundColorChanged())
+    kpColor oldBackgroundColor () const;
+
+    // (only valid in slots connected to colorSimilarityChanged())
+    double oldColorSimilarity () const;
+
+public slots:
+    void setForegroundColor (const kpColor &color);
+    void setBackgroundColor (const kpColor &color);
+
+private:
+    kpMainWindow *m_mainWindow;
+
+    Qt::Orientation m_lastDockedOrientation;
+    bool m_lastDockedOrientationSet;
+    virtual void setOrientation (Qt::Orientation o);
+
+    QBoxLayout *m_boxLayout;
+    kpDualColorButton *m_dualColorButton;
+    kpColorPalette *m_colorPalette;
+    kpColorSimilarityToolBarItem *m_colorSimilarityToolBarItem;
+};
+
+#endif  // __kp_color_toolbar_h__