kcolorcombo.cpp

/* This file is part of the KDE libraries
    Copyright (C) 1997 Martin Jones (mjones@kde.org)
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
*/
//-----------------------------------------------------------------------------
// KDE color selection dialog.
//
// 1999-09-27 Espen Sand <espensa@online.no>
// KColorDialog is now subclassed from KDialogBase. I have also extended
// KColorDialog::getColor() so that in contains a parent argument. This
// improves centering capability.
//
// layout management added Oct 1997 by Mario Weilguni
// <mweilguni@sime.com>
//
 
 
#include <stdio.h>
#include <stdlib.h>
 
#include <tqdrawutil.h>
#include <tqevent.h>
#include <tqfile.h>
#include <tqimage.h>
#include <tqlabel.h>
#include <tqlayout.h>
#include <tqlineedit.h>
#include <tqvalidator.h>
#include <tqpainter.h>
#include <tqpushbutton.h>
#include <tqtimer.h>
 
#include <tdeapplication.h>
#include <tdeconfig.h>
#include <tdeglobal.h>
#include <tdeglobalsettings.h>
#include <kiconloader.h>
#include <tdelistbox.h>
#include <tdelocale.h>
#include <tdemessagebox.h>
#include <kseparator.h>
#include <kpalette.h>
#include <kimageeffect.h>
 
//#include "kcolordialog.h"
//#include "kcolordrag.h"
#include "kcolorcombo.h"
 
// This is repeated from the KColorDlg, but I didn't
// want to make it public BL.
// We define it out when compiling with --enable-final in which case
// we use the version defined in KColorDlg
 
#ifndef KDE_USE_FINAL
#define STANDARD_PAL_SIZE 17
 
static TQColor *standardPalette = 0;
 
static void createStandardPalette()
{
    if ( standardPalette )
    return;
 
    standardPalette = new TQColor [STANDARD_PAL_SIZE];
 
    int i = 0;
 
    standardPalette[i++] = TQt::red;
    standardPalette[i++] = TQt::green;
    standardPalette[i++] = TQt::blue;
    standardPalette[i++] = TQt::cyan;
    standardPalette[i++] = TQt::magenta;
    standardPalette[i++] = TQt::yellow;
    standardPalette[i++] = TQt::darkRed;
    standardPalette[i++] = TQt::darkGreen;
    standardPalette[i++] = TQt::darkBlue;
    standardPalette[i++] = TQt::darkCyan;
    standardPalette[i++] = TQt::darkMagenta;
    standardPalette[i++] = TQt::darkYellow;
    standardPalette[i++] = TQt::white;
    standardPalette[i++] = TQt::lightGray;
    standardPalette[i++] = TQt::gray;
    standardPalette[i++] = TQt::darkGray;
    standardPalette[i++] = TQt::black;
}
#endif
 
class KColorCombo::KColorComboPrivate
{
    protected:
    friend class KColorCombo;
    KColorComboPrivate(){}
    ~KColorComboPrivate(){}
    bool showEmptyList;
};
 
KColorCombo::KColorCombo( TQWidget *parent, const char *name )
    : TQComboBox( parent, name )
{
    d=new KColorComboPrivate();
    d->showEmptyList=false;
 
    customColor.setRgb( 255, 255, 255 );
    internalcolor.setRgb( 255, 255, 255 );
 
    createStandardPalette();
 
    addColors();
 
    connect( this, TQ_SIGNAL( activated(int) ), TQ_SLOT( slotActivated(int) ) );
    connect( this, TQ_SIGNAL( highlighted(int) ), TQ_SLOT( slotHighlighted(int) ) );
}
 
 
KColorCombo::~KColorCombo()
{
    delete d;
}
void KColorCombo::setColor( const TQColor &col )
{
    internalcolor = col;
    d->showEmptyList=false;
    addColors();
}
 
 
TQColor KColorCombo::color() const {
  return internalcolor;
}
 
void KColorCombo::resizeEvent( TQResizeEvent *re )
{
    TQComboBox::resizeEvent( re );
 
    addColors();
}
 
void KColorCombo::showEmptyList()
{
    d->showEmptyList=true;
    addColors();
}
 
void KColorCombo::slotActivated( int index )
{
    if ( index == 0 )
    {
        if ( KColorDialog::getColor( customColor, this ) == TQDialog::Accepted )
        {
            TQPainter painter;
            TQPen pen;
            TQRect rect( 0, 0, width(), TQFontMetrics(painter.font()).height()+4);
            TQPixmap pixmap( rect.width(), rect.height() );
 
            if ( tqGray( customColor.rgb() ) < 128 )
                pen.setColor( white );
            else
                pen.setColor( black );
 
            painter.begin( &pixmap );
            TQBrush brush( customColor );
            painter.fillRect( rect, brush );
            painter.setPen( pen );
            painter.drawText( 2, TQFontMetrics(painter.font()).ascent()+2, i18n("Custom...") );
            painter.end();
 
            changeItem( pixmap, 0 );
            pixmap.detach();
        }
 
        internalcolor = customColor;
    }
    else
        internalcolor = standardPalette[ index - 1 ];
 
    emit activated( internalcolor );
}
 
void KColorCombo::slotHighlighted( int index )
{
    if ( index == 0 )
        internalcolor = customColor;
    else
        internalcolor = standardPalette[ index - 1 ];
 
    emit highlighted( internalcolor );
}
 
void KColorCombo::addColors()
{
    TQPainter painter;
    TQPen pen;
    TQRect rect( 0, 0, width(), TQFontMetrics(painter.font()).height()+4 );
    TQPixmap pixmap( rect.width(), rect.height() );
    int i;
 
    clear();
    if (d->showEmptyList) return;
 
    createStandardPalette();
 
    for ( i = 0; i < STANDARD_PAL_SIZE; i++ )
        if ( standardPalette[i] == internalcolor ) break;
 
    if ( i == STANDARD_PAL_SIZE )
        customColor = internalcolor;
 
    if ( tqGray( customColor.rgb() ) < 128 )
        pen.setColor( white );
    else
        pen.setColor( black );
 
    painter.begin( &pixmap );
    TQBrush brush( customColor );
    painter.fillRect( rect, brush );
    painter.setPen( pen );
    painter.drawText( 2, TQFontMetrics(painter.font()).ascent()+2, i18n("Custom...") );
    painter.end();
 
    insertItem( pixmap );
    pixmap.detach();
 
    for ( i = 0; i < STANDARD_PAL_SIZE; i++ )
    {
        painter.begin( &pixmap );
        TQBrush brush( standardPalette[i] );
        painter.fillRect( rect, brush );
        painter.end();
 
        insertItem( pixmap );
        pixmap.detach();
 
        if ( standardPalette[i] == internalcolor )
            setCurrentItem( i + 1 );
    }
}
 
void KColorCombo::virtual_hook( int, void* )
{ /*BASE::virtual_hook( id, data );*/ }
 
#include "kcolorcombo.moc"