tdegraphics/kolourpaint/widgets/kpcolortoolbar.cpp

/*
   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.
*/


#define DEBUG_KP_COLOR_TOOL_BAR 0


#include <kpcolortoolbar.h>

#include <tqbitmap.h>
#include <tqdrawutil.h>
#include <tqframe.h>
#include <tqlayout.h>
#include <tqpainter.h>
#include <tqsize.h>
#include <tqtooltip.h>
#include <tqwidget.h>

#include <kapplication.h>
#include <kcolordialog.h>
#include <kcolordrag.h>
#include <kconfig.h>
#include <kdebug.h>
#include <kiconloader.h>
#include <klocale.h>

#include <kpcolorsimilaritydialog.h>
#include <kpdefs.h>
#include <kpmainwindow.h>
#include <kppixmapfx.h>
#include <kptool.h>
#include <kpview.h>


/*
 * kpDualColorButton
 */

kpDualColorButton::kpDualColorButton (kpMainWindow *mainWindow,
                                      TQWidget *parent, const char *name)
    : TQFrame (parent, name, TQt::WNoAutoErase/*no flicker*/),
      m_mainWindow (mainWindow),
      m_backBuffer (0)
{
    setFrameStyle (TQFrame::Panel | TQFrame::Sunken);

    m_color [0] = kpColor (0, 0, 0);  // black
    m_color [1] = kpColor (255, 255, 255);  // white

    setAcceptDrops (true);
}

kpDualColorButton::~kpDualColorButton ()
{
    delete m_backBuffer; m_backBuffer = 0;
}


kpColor kpDualColorButton::color (int which) const
{
    if (which < 0 || which > 1)
    {
        kdWarning () << "kpDualColorButton::color (" << which
                     << ") - out of range" << endl;
        which = 0;
    }

    return m_color [which];
}

kpColor kpDualColorButton::foregroundColor () const
{
    return color (0);
}

kpColor kpDualColorButton::backgroundColor () const
{
    return color (1);
}


void kpDualColorButton::setColor (int which, const kpColor &color)
{
    if (which < 0 || which > 1)
    {
        kdWarning () << "kpDualColorButton::setColor (" << which
                     << ") - out of range" << endl;
        which = 0;
    }

    if (m_color [which] == color)
        return;

    m_oldColor [which] = m_color [which];
    m_color [which] = color;
    update ();

    if (which == 0)
        emit foregroundColorChanged (color);
    else
        emit backgroundColorChanged (color);
}

void kpDualColorButton::setForegroundColor (const kpColor &color)
{
    setColor (0, color);
}

void kpDualColorButton::setBackgroundColor (const kpColor &color)
{
    setColor (1, color);
}


// public
kpColor kpDualColorButton::oldForegroundColor () const
{
    return m_oldColor [0];
}

// public
kpColor kpDualColorButton::oldBackgroundColor () const
{
    return m_oldColor [1];
}


// public virtual [base TQWidget]
TQSize kpDualColorButton::sizeHint () const
{
    return TQSize (52, 52);
}


// protected
TQRect kpDualColorButton::swapPixmapRect () const
{
    TQPixmap swapPixmap = UserIcon ("colorbutton_swap_16x16");

    return TQRect (contentsRect ().width () - swapPixmap.width (),
                  0,
                  swapPixmap.width (),
                  swapPixmap.height ());
}

// protected
TQRect kpDualColorButton::foregroundBackgroundRect () const
{
    TQRect cr (contentsRect ());
    return TQRect (cr.width () / 8,
                  cr.height () / 8,
                  cr.width () * 6 / 8,
                  cr.height () * 6 / 8);
}

// protected
TQRect kpDualColorButton::foregroundRect () const
{
    TQRect fbr (foregroundBackgroundRect ());
    return TQRect (fbr.x (),
                  fbr.y (),
                  fbr.width () * 3 / 4,
                  fbr.height () * 3 / 4);
}

// protected
TQRect kpDualColorButton::backgroundRect () const
{
    TQRect fbr (foregroundBackgroundRect ());
    return TQRect (fbr.x () + fbr.width () / 4,
                  fbr.y () + fbr.height () / 4,
                  fbr.width () * 3 / 4,
                  fbr.height () * 3 / 4);
}


// TODO: drag a colour from this widget

// protected virtual [base TQWidget]
void kpDualColorButton::dragMoveEvent (TQDragMoveEvent *e)
{
    e->accept ((foregroundRect ().contains (e->pos ()) ||
                backgroundRect ().contains (e->pos ())) &&
               KColorDrag::canDecode (e));
}

// protected virtual [base TQWidget]
void kpDualColorButton::dropEvent (TQDropEvent *e)
{
    TQColor col;
    KColorDrag::decode (e, col/*ref*/);

    if (col.isValid ())
    {
        if (foregroundRect ().contains (e->pos ()))
            setForegroundColor (kpColor (col.rgb ()));
        else if (backgroundRect ().contains (e->pos ()))
            setBackgroundColor (kpColor (col.rgb ()));
    }
}


// protected virtual [base TQWidget]
void kpDualColorButton::mousePressEvent (TQMouseEvent * /*e*/)
{
    // eat right-mouse click to prevent it from getting to the toolbar
}

// protected virtual [base TQWidget]
void kpDualColorButton::mouseDoubleClickEvent (TQMouseEvent *e)
{
    int whichColor = -1;

    if (foregroundRect ().contains (e->pos ()))
        whichColor = 0;
    else if (backgroundRect ().contains (e->pos ()))
        whichColor = 1;

    if (whichColor == 0 || whichColor == 1)
    {
        TQColor col = TQt::black;
        if (color (whichColor).isOpaque ())
            col = color (whichColor).toTQColor ();
        else
        {
            // TODO: If you double-click on a transparent color and press OK, you get
            //       black, instead of the color staying as transparent.
            //
            //       We should modify or fork KColorDialog to allow us to fix this.
            //
            //       It would be wrong to stop the user from double-clicking on a
            //       transparent color as that would make the UI inconsistent, compared
            //       to opaque colors.
        }

        // TODO: parent
        if (KColorDialog::getColor (col/*ref*/))
            setColor (whichColor, kpColor (col.rgb ()));
    }
}

// protected virtual [base TQWidget]
void kpDualColorButton::mouseReleaseEvent (TQMouseEvent *e)
{
    if (swapPixmapRect ().contains (e->pos ()) &&
        m_color [0] != m_color [1])
    {
    #if DEBUG_KP_COLOR_TOOL_BAR && 1
        kdDebug () << "kpDualColorButton::mouseReleaseEvent() swap colors:" << endl;
    #endif
        m_oldColor [0] = m_color [0];
        m_oldColor [1] = m_color [1];

        kpColor temp = m_color [0];
        m_color [0] = m_color [1];
        m_color [1] = temp;

        update ();

        emit colorsSwapped (m_color [0], m_color [1]);
        emit foregroundColorChanged (m_color [0]);
        emit backgroundColorChanged (m_color [1]);
    }
}


// protected virtual [base TQFrame]
void kpDualColorButton::drawContents (TQPainter *p)
{
#if DEBUG_KP_COLOR_TOOL_BAR && 1
    kdDebug () << "kpDualColorButton::draw() rect=" << rect ()
               << " contentsRect=" << contentsRect ()
               << endl;
#endif

    if (!m_backBuffer ||
        m_backBuffer->width () != contentsRect ().width () ||
        m_backBuffer->height () != contentsRect ().height ())
    {
        delete m_backBuffer;
        m_backBuffer = new TQPixmap (contentsRect ().width (), contentsRect ().height ());
    }


    TQPainter backBufferPainter (m_backBuffer);

    if (isEnabled () && m_mainWindow)
    {
        kpView::drawTransparentBackground (&backBufferPainter,
                                           m_backBuffer->width (), m_backBuffer->height (),
                                           m_backBuffer->rect (),
                                           true/*preview*/);
    }
    else
    {
        backBufferPainter.fillRect (m_backBuffer->rect (),
                                    colorGroup ().color (TQColorGroup::Background));
    }

    TQPixmap swapPixmap = UserIcon ("colorbutton_swap_16x16");
    if (!isEnabled ())
    {
        // swapPixmap has a mask after all
        swapPixmap.fill (colorGroup ().color (TQColorGroup::Dark));
    }
    backBufferPainter.drawPixmap (swapPixmapRect ().topLeft (), swapPixmap);

    // foreground patch must be drawn after background patch
    // as it overlaps on top of background patch
    TQRect bgRect = backgroundRect ();
    TQRect bgRectInside = TQRect (bgRect.x () + 2, bgRect.y () + 2,
                                bgRect.width () - 4, bgRect.height () - 4);
    if (isEnabled ())
    {
    #if DEBUG_KP_COLOR_TOOL_BAR && 1
        kdDebug () << "\tbackgroundColor=" << (int *) m_color [1].toTQRgb ()
                   << endl;
    #endif
        if (m_color [1].isOpaque ())
            backBufferPainter.fillRect (bgRectInside, m_color [1].toTQColor ());
        else
            backBufferPainter.drawPixmap (bgRectInside, UserIcon ("color_transparent_26x26"));
    }
    else
        backBufferPainter.fillRect (bgRectInside, colorGroup ().color (TQColorGroup::Button));
    qDrawShadePanel (&backBufferPainter, bgRect, colorGroup (),
                     false/*not sunken*/, 2/*lineWidth*/,
                     0/*never fill*/);

    TQRect fgRect = foregroundRect ();
    TQRect fgRectInside = TQRect (fgRect.x () + 2, fgRect.y () + 2,
                                fgRect.width () - 4, fgRect.height () - 4);
    if (isEnabled ())
    {
    #if DEBUG_KP_COLOR_TOOL_BAR && 1
        kdDebug () << "\tforegroundColor=" << (int *) m_color [0].toTQRgb ()
                   << endl;
    #endif
        if (m_color [0].isOpaque ())
            backBufferPainter.fillRect (fgRectInside, m_color [0].toTQColor ());
        else
            backBufferPainter.drawPixmap (fgRectInside, UserIcon ("color_transparent_26x26"));
    }
    else
        backBufferPainter.fillRect (fgRectInside, colorGroup ().color (TQColorGroup::Button));
    qDrawShadePanel (&backBufferPainter, fgRect, colorGroup (),
                     false/*not sunken*/, 2/*lineWidth*/,
                     0/*never fill*/);

    backBufferPainter.end ();

    p->drawPixmap (contentsRect (), *m_backBuffer);
}


/*
 * kpColorCells
 */

static inline int roundUp2 (int val)
{
    return val % 2 ? val + 1 : val;
}

static inline int btwn0_255 (int val)
{
    if (val < 0)
        return 0;
    else if (val > 255)
        return 255;
    else
        return val;
}

enum
{
    blendDark = 25,
    blendNormal = 50,
    blendLight = 75,
    blendAdd = 100
};

static TQColor blend (const TQColor &a, const TQColor &b, int percent = blendNormal)
{
    return TQColor (btwn0_255 (roundUp2 (a.red () + b.red ()) * percent / 100),
                   btwn0_255 (roundUp2 (a.green () + b.green ()) * percent / 100),
                   btwn0_255 (roundUp2 (a.blue () + b.blue ()) * percent / 100));
}

static TQColor add (const TQColor &a, const TQColor &b)
{
    return blend (a, b, blendAdd);
}





//
// make our own colors in case weird ones like "TQt::cyan"
// (turquoise) get changed by TQt
//

// primary colors + B&W
static TQColor kpRed;
static TQColor kpGreen;
static TQColor kpBlue;
static TQColor kpBlack;
static TQColor kpWhite;

// intentionally _not_ an HSV darkener
static TQColor dark (const TQColor &color)
{
    return blend (color, kpBlack);
}

// full-brightness colors
static TQColor kpYellow;
static TQColor kpPurple;
static TQColor kpAqua;

// mixed colors
static TQColor kpGrey;
static TQColor kpLightGrey;
static TQColor kpOrange;

// pastel colors
static TQColor kpPink;
static TQColor kpLightGreen;
static TQColor kpLightBlue;
static TQColor kpTan;

static bool ownColorsInitialised = false;

/* TODO: clean up this code!!!
 *       (probably when adding palette load/save)
 */
#define rows 2
#define cols 11
kpColorCells::kpColorCells (TQWidget *parent,
                            Qt::Orientation o,
                            const char *name)
    : KColorCells (parent, rows, cols),
      m_mouseButton (-1)
{
    setName (name);

    setShading (false);  // no 3D look
    
    // Trap KColorDrag so that kpMainWindow does not trap it.
    // See our impl of dropEvent().
    setAcceptDrops (true);
    setAcceptDrags (true);
    
    connect (this, TQT_SIGNAL (colorDoubleClicked (int)),
             TQT_SLOT (slotColorDoubleClicked (int)));

    if (!ownColorsInitialised)
    {
        // Don't initialise globally when we probably don't have a colour
        // allocation context.  This way, the colours aren't sometimes
        // invalid (e.g. at 8-bit).

        kpRed = TQColor (255, 0, 0);
        kpGreen = TQColor (0, 255, 0);
        kpBlue = TQColor (0, 0, 255);
        kpBlack = TQColor (0, 0, 0);
        kpWhite = TQColor (255, 255, 255);

        kpYellow = add (kpRed, kpGreen);
        kpPurple = add (kpRed, kpBlue);
        kpAqua = add (kpGreen, kpBlue);

        kpGrey = blend (kpBlack, kpWhite);
        kpLightGrey = blend (kpGrey, kpWhite);
        kpOrange = blend (kpRed, kpYellow);

        kpPink = blend (kpRed, kpWhite);
        kpLightGreen = blend (kpGreen, kpWhite);
        kpLightBlue = blend (kpBlue, kpWhite);
        kpTan = blend (kpYellow, kpWhite);

        ownColorsInitialised = true;
    }

    setOrientation (o);
}

kpColorCells::~kpColorCells ()
{
}

Qt::Orientation kpColorCells::orientation () const
{
    return m_orientation;
}

void kpColorCells::setOrientation (Qt::Orientation o)
{
    int c, r;

    if (o == Qt::Horizontal)
    {
        c = cols;
        r = rows;
    }
    else
    {
        c = rows;
        r = cols;
    }

#if DEBUG_KP_COLOR_TOOL_BAR
    kdDebug () << "kpColorCells::setOrientation(): r=" << r << " c=" << c << endl;
#endif

    setNumRows (r);
    setNumCols (c);

    setCellWidth (26);
    setCellHeight (26);
    
    setFixedSize (numCols () * cellWidth () + frameWidth () * 2,
                  numRows () * cellHeight () + frameWidth () * 2);

/*
    kdDebug () << "\tlimits: array=" << sizeof (colors) / sizeof (colors [0])
               << " r*c=" << r * c << endl;
    kdDebug () << "\tsizeof (colors)=" << sizeof (colors)
               << " sizeof (colors [0])=" << sizeof (colors [0])
               << endl;*/
    TQColor colors [] =
    {
        kpBlack,
        kpGrey,
        kpRed,
        kpOrange,
        kpYellow,
        kpGreen,
        kpAqua,
        kpBlue,
        kpPurple,
        kpPink,
        kpLightGreen,

        kpWhite,
        kpLightGrey,
        dark (kpRed),
        dark (kpOrange)/*brown*/,
        dark (kpYellow),
        dark (kpGreen),
        dark (kpAqua),
        dark (kpBlue),
        dark (kpPurple),
        kpLightBlue,
        kpTan
    };

    for (int i = 0;
         /*i < int (sizeof (colors) / sizeof (colors [0])) &&*/
         i < r * c;
         i++)
    {
        int y, x;
        int pos;

        if (o == Qt::Horizontal)
        {
            y = i / cols;
            x = i % cols;
            pos = i;
        }
        else
        {
            y = i % cols;
            x = i / cols;
            // int x = rows - 1 - i / cols;
            pos = y * rows + x;
        }

        KColorCells::setColor (pos, colors [i]);
        //TQToolTip::add (this, cellGeometry (y, x), colors [i].name ());
    }

    m_orientation = o;
}

// virtual protected [base KColorCells]
void kpColorCells::dropEvent (TQDropEvent *e)
{
    // Eat event so that:
    //
    // 1. User doesn't clobber the palette (until we support reconfigurable
    //    palettes)
    // 2. kpMainWindow::dropEvent() doesn't try to paste colour code as text
    //    (when the user slips and drags colour cell a little instead of clicking)
    e->accept ();
}

// virtual protected
void kpColorCells::paintCell (TQPainter *painter, int row, int col)
{
    TQColor oldColor;
    int cellNo;

    if (!isEnabled ())
    {
        cellNo = row * numCols () + col;

        // make all cells 3D (so that disabled palette doesn't look flat)
        setShading (true);

        oldColor = KColorCells::color (cellNo);
        KColorCells::colors [cellNo] = backgroundColor ();
    }


    // no focus rect as it doesn't make sense
    // since 2 colors (foreground & background) can be selected
    KColorCells::selected = -1;
    KColorCells::paintCell (painter, row, col);


    if (!isEnabled ())
    {
        KColorCells::colors [cellNo] = oldColor;
        setShading (false);
    }
}

// virtual protected
void kpColorCells::mouseReleaseEvent (TQMouseEvent *e)
{
    m_mouseButton = -1;

    TQt::ButtonState button = e->button ();
#if DEBUG_KP_COLOR_TOOL_BAR
    kdDebug () << "kpColorCells::mouseReleaseEvent(left="
               << (button & Qt::LeftButton)
               << ",right="
               << (button & Qt::RightButton)
               << ")"
               << endl;
#endif
    if (!((button & Qt::LeftButton) && (button & Qt::RightButton)))
    {
        if (button & Qt::LeftButton)
            m_mouseButton = 0;
        else if (button & Qt::RightButton)
            m_mouseButton = 1;
    }

    connect (this, TQT_SIGNAL (colorSelected (int)), this, TQT_SLOT (slotColorSelected (int)));
    KColorCells::mouseReleaseEvent (e);
    disconnect (this, TQT_SIGNAL (colorSelected (int)), this, TQT_SLOT (slotColorSelected (int)));

#if DEBUG_KP_COLOR_TOOL_BAR
    kdDebug () << "kpColorCells::mouseReleaseEvent() setting m_mouseButton back to -1" << endl;
#endif
    m_mouseButton = -1;
}

// protected virtual [base KColorCells]
void kpColorCells::resizeEvent (TQResizeEvent *e)
{
    // KColorCells::resizeEvent() tries to adjust the cellWidth and cellHeight
    // to the current dimensions but doesn't take into account
    // frame{Width,Height}().
    //
    // In any case, we already set the cell{Width,Height} and a fixed
    // widget size and don't want any of it changed.  Eat the resize event.
    (void) e;
}

// protected slot
void kpColorCells::slotColorSelected (int cell)
{
#if DEBUG_KP_COLOR_TOOL_BAR
    kdDebug () << "kpColorCells::slotColorSelected(cell=" << cell
               << ") mouseButton = " << m_mouseButton << endl;
#endif
    TQColor c = KColorCells::color (cell);

    if (m_mouseButton == 0)
    {
        emit foregroundColorChanged (c);
        emit foregroundColorChanged (kpColor (c.rgb ()));
    }
    else if (m_mouseButton == 1)
    {
        emit backgroundColorChanged (c);
        emit backgroundColorChanged (kpColor (c.rgb ()));
    }

    m_mouseButton = -1;  // just in case
}

// protected slot
void kpColorCells::slotColorDoubleClicked (int cell)
{
#if DEBUG_KP_COLOR_TOOL_BAR
    kdDebug () << "kpColorCells::slotColorDoubleClicked(cell="
               << cell << ")" << endl;
#endif

    TQColor color = KColorCells::color (cell);

    // TODO: parent
    if (KColorDialog::getColor (color/*ref*/))
        KColorCells::setColor (cell, color);
}


/*
 * kpTransparentColorCell
 */

kpTransparentColorCell::kpTransparentColorCell (TQWidget *parent, const char *name)
    : TQFrame (parent, name)
{
#if DEBUG_KP_COLOR_TOOL_BAR
    kdDebug () << "kpTransparentColorCell::kpTransparentColorCell()" << endl;
#endif

    setFrameStyle (TQFrame::Panel | TQFrame::Sunken);
#if DEBUG_KP_COLOR_TOOL_BAR && 0
    kdDebug () << "\tdefault line width=" << lineWidth ()
               << " frame width=" << frameWidth () << endl;
#endif
    //setLineWidth (2);
#if DEBUG_KP_COLOR_TOOL_BAR && 0
    kdDebug () << "\tline width=" << lineWidth ()
               << " frame width=" << frameWidth () << endl;
#endif

    m_pixmap = UserIcon ("color_transparent_26x26");

    TQToolTip::add (this, i18n ("Transparent"));
}

kpTransparentColorCell::~kpTransparentColorCell ()
{
}


// public virtual [base TQWidget]
TQSize kpTransparentColorCell::sizeHint () const
{
    return TQSize (m_pixmap.width () + frameWidth () * 2,
                  m_pixmap.height () + frameWidth () * 2);
}

// protected virtual [base TQWidget]
void kpTransparentColorCell::mousePressEvent (TQMouseEvent * /*e*/)
{
    // eat right-mouse click to prevent it from getting to the toolbar
}

// protected virtual [base TQWidget]
void kpTransparentColorCell::mouseReleaseEvent (TQMouseEvent *e)
{
    if (TQT_TQRECT_OBJECT(rect ()).contains (e->pos ()))
    {
        if (e->button () == Qt::LeftButton)
        {
            emit transparentColorSelected (0);
            emit foregroundColorChanged (kpColor::transparent);
        }
        else if (e->button () == Qt::RightButton)
        {
            emit transparentColorSelected (1);
            emit backgroundColorChanged (kpColor::transparent);
        }
    }
}

// protected virtual [base TQFrame]
void kpTransparentColorCell::drawContents (TQPainter *p)
{
    TQFrame::drawContents (p);
    if (isEnabled ())
    {
    #if DEBUG_KP_COLOR_TOOL_BAR
        kdDebug () << "kpTransparentColorCell::drawContents() contentsRect="
                   << contentsRect ()
                   << endl;
    #endif
        p->drawPixmap (contentsRect (), m_pixmap);
    }
}


/*
 * kpColorPalette
 */

kpColorPalette::kpColorPalette (TQWidget *parent,
                                Qt::Orientation o,
                                const char *name)
    : TQWidget (parent, name),
      m_boxLayout (0)
{
#if DEBUG_KP_COLOR_TOOL_BAR
    kdDebug () << "kpColorPalette::kpColorPalette()" << endl;
#endif

    m_transparentColorCell = new kpTransparentColorCell (this);
    m_transparentColorCell->setSizePolicy (TQSizePolicy::Fixed, TQSizePolicy::Fixed);
    connect (m_transparentColorCell, TQT_SIGNAL (foregroundColorChanged (const kpColor &)),
             this, TQT_SIGNAL (foregroundColorChanged (const kpColor &)));
    connect (m_transparentColorCell, TQT_SIGNAL (backgroundColorChanged (const kpColor &)),
             this, TQT_SIGNAL (backgroundColorChanged (const kpColor &)));

    m_colorCells = new kpColorCells (this);
    connect (m_colorCells, TQT_SIGNAL (foregroundColorChanged (const kpColor &)),
             this, TQT_SIGNAL (foregroundColorChanged (const kpColor &)));
    connect (m_colorCells, TQT_SIGNAL (backgroundColorChanged (const kpColor &)),
             this, TQT_SIGNAL (backgroundColorChanged (const kpColor &)));

    setOrientation (o);
}

kpColorPalette::~kpColorPalette ()
{
}

// public
Qt::Orientation kpColorPalette::orientation () const
{
    return m_orientation;
}

void kpColorPalette::setOrientation (Qt::Orientation o)
{
    m_colorCells->setOrientation (o);

    delete m_boxLayout;

    if (o == Qt::Horizontal)
    {
        m_boxLayout = new TQBoxLayout (this, TQBoxLayout::LeftToRight, 0/*margin*/, 5/*spacing*/);
        m_boxLayout->addWidget (m_transparentColorCell, 0/*stretch*/, TQt::AlignVCenter);
        m_boxLayout->addWidget (m_colorCells);
    }
    else
    {
        m_boxLayout = new TQBoxLayout (this, TQBoxLayout::TopToBottom, 0/*margin*/, 5/*spacing*/);
        m_boxLayout->addWidget (m_transparentColorCell, 0/*stretch*/, TQt::AlignHCenter);
        m_boxLayout->addWidget (m_colorCells);
    }

    m_orientation = o;
}


/*
 * kpColorSimilarityToolBarItem
 */

kpColorSimilarityToolBarItem::kpColorSimilarityToolBarItem (kpMainWindow *mainWindow,
                                                            TQWidget *parent,
                                                            const char *name)
    : kpColorSimilarityCube (kpColorSimilarityCube::Depressed |
                             kpColorSimilarityCube::DoubleClickInstructions,
                             mainWindow, parent, name),
      m_mainWindow (mainWindow),
      m_processedColorSimilarity (kpColor::Exact)
{
    setColorSimilarity (mainWindow->configColorSimilarity ());
}

kpColorSimilarityToolBarItem::~kpColorSimilarityToolBarItem ()
{
}


// public
int kpColorSimilarityToolBarItem::processedColorSimilarity () const
{
    return m_processedColorSimilarity;
}


// public slot
void kpColorSimilarityToolBarItem::setColorSimilarity (double similarity)
{
    m_oldColorSimilarity = colorSimilarity ();

    kpColorSimilarityCube::setColorSimilarity (similarity);
    if (similarity > 0)
        TQToolTip::add (this, i18n ("Color similarity: %1%").arg (tqRound (similarity * 100)));
    else
        TQToolTip::add (this, i18n ("Color similarity: Exact"));

    m_processedColorSimilarity = kpColor::processSimilarity (colorSimilarity ());

    m_mainWindow->configSetColorSimilarity (colorSimilarity ());

    emit colorSimilarityChanged (colorSimilarity (), m_processedColorSimilarity);
}

// public
double kpColorSimilarityToolBarItem::oldColorSimilarity () const
{
    return m_oldColorSimilarity;
}


// private virtual [base TQWidget]
void kpColorSimilarityToolBarItem::mousePressEvent (TQMouseEvent * /*e*/)
{
    // eat right-mouse click to prevent it from getting to the toolbar
}

// private virtual [base TQWidget]
void kpColorSimilarityToolBarItem::mouseDoubleClickEvent (TQMouseEvent * /*e*/)
{
    kpColorSimilarityDialog dialog (m_mainWindow, this);
    dialog.setColorSimilarity (colorSimilarity ());
    if (dialog.exec ())
    {
        setColorSimilarity (dialog.colorSimilarity ());
    }
}


/*
 * kpColorToolBar
 */

kpColorToolBar::kpColorToolBar (const TQString &label, kpMainWindow *mainWindow, const char *name)
    : KToolBar (mainWindow, name),
      m_mainWindow (mainWindow)
{
    setText (label);


    TQWidget *base = new TQWidget (this);
    m_boxLayout = new TQBoxLayout (base, TQBoxLayout::LeftToRight,
                                  5/*margin*/, (10 * 4)/*spacing*/);

    m_dualColorButton = new kpDualColorButton (mainWindow, base);
    m_dualColorButton->setSizePolicy (TQSizePolicy::Fixed, TQSizePolicy::Fixed);
    connect (m_dualColorButton, TQT_SIGNAL (colorsSwapped (const kpColor &, const kpColor &)),
             this, TQT_SIGNAL (colorsSwapped (const kpColor &, const kpColor &)));
    connect (m_dualColorButton, TQT_SIGNAL (foregroundColorChanged (const kpColor &)),
             this, TQT_SIGNAL (foregroundColorChanged (const kpColor &)));
    connect (m_dualColorButton, TQT_SIGNAL (backgroundColorChanged (const kpColor &)),
             this, TQT_SIGNAL (backgroundColorChanged (const kpColor &)));
    m_boxLayout->addWidget (m_dualColorButton, 0/*stretch*/);

    m_colorPalette = new kpColorPalette (base);
    connect (m_colorPalette, TQT_SIGNAL (foregroundColorChanged (const kpColor &)),
             m_dualColorButton, TQT_SLOT (setForegroundColor (const kpColor &)));
    connect (m_colorPalette, TQT_SIGNAL (backgroundColorChanged (const kpColor &)),
             m_dualColorButton, TQT_SLOT (setBackgroundColor (const kpColor &)));
    m_boxLayout->addWidget (m_colorPalette, 0/*stretch*/);

    m_colorSimilarityToolBarItem = new kpColorSimilarityToolBarItem (mainWindow, base);
    m_colorSimilarityToolBarItem->setSizePolicy (TQSizePolicy::Fixed, TQSizePolicy::Fixed);
    connect (m_colorSimilarityToolBarItem, TQT_SIGNAL (colorSimilarityChanged (double, int)),
             this, TQT_SIGNAL (colorSimilarityChanged (double, int)));
    m_boxLayout->addWidget (m_colorSimilarityToolBarItem, 0/*stretch*/);

    // HACK: couldn't get TQSpacerItem to work
    TQWidget *fakeSpacer = new TQWidget (base);
    m_boxLayout->addWidget (fakeSpacer, 1/*stretch*/);

    m_lastDockedOrientationSet = false;
    setOrientation (orientation ());

    KToolBar::insertWidget (0, base->width (), base);
}

// virtual
void kpColorToolBar::setOrientation (Qt::Orientation o)
{
    // (TQDockWindow::undock() calls us)
    bool isOutsideDock = (place () == TQDockWindow::OutsideDock);

    if (!m_lastDockedOrientationSet || !isOutsideDock)
    {
        m_lastDockedOrientation = o;
        m_lastDockedOrientationSet = true;
    }

    if (isOutsideDock)
    {
        //kdDebug () << "\toutside dock, forcing orientation to last" << endl;
        o = m_lastDockedOrientation;
    }

    if (o == Qt::Horizontal)
    {
        m_boxLayout->setDirection (TQBoxLayout::LeftToRight);
    }
    else
    {
        m_boxLayout->setDirection (TQBoxLayout::TopToBottom);
    }

    m_colorPalette->setOrientation (o);

    KToolBar::setOrientation (o);
}

kpColorToolBar::~kpColorToolBar ()
{
}

kpColor kpColorToolBar::color (int which) const
{
    if (which < 0 || which > 1)
    {
        kdWarning () << "kpColorToolBar::color (" << which
                     << ") - out of range" << endl;
        which = 0;
    }

    return m_dualColorButton->color (which);
}

void kpColorToolBar::setColor (int which, const kpColor &color)
{
    if (which < 0 || which > 1)
    {
        kdWarning () << "kpColorToolBar::setColor (" << which
                     << ") - out of range" << endl;
        which = 0;
    }

    m_dualColorButton->setColor (which, color);
}

kpColor kpColorToolBar::foregroundColor () const
{
    return m_dualColorButton->foregroundColor ();
}

void kpColorToolBar::setForegroundColor (const kpColor &color)
{
    m_dualColorButton->setForegroundColor (color);
}

kpColor kpColorToolBar::backgroundColor () const
{
    return m_dualColorButton->backgroundColor ();
}

void kpColorToolBar::setBackgroundColor (const kpColor &color)
{
    m_dualColorButton->setBackgroundColor (color);
}


kpColor kpColorToolBar::oldForegroundColor () const
{
    return m_dualColorButton->oldForegroundColor ();
}

kpColor kpColorToolBar::oldBackgroundColor () const
{
    return m_dualColorButton->oldBackgroundColor ();
}

double kpColorToolBar::oldColorSimilarity () const
{
    return m_colorSimilarityToolBarItem->oldColorSimilarity ();
}


double kpColorToolBar::colorSimilarity () const
{
    return m_colorSimilarityToolBarItem->colorSimilarity ();
}

void kpColorToolBar::setColorSimilarity (double similarity)
{
    m_colorSimilarityToolBarItem->setColorSimilarity (similarity);
}

int kpColorToolBar::processedColorSimilarity () const
{
    return m_colorSimilarityToolBarItem->processedColorSimilarity ();
}


#include <kpcolortoolbar.moc>