diff options
Diffstat (limited to 'lib/kopainter/ko_cmyk_widget.cc')
| -rw-r--r-- | lib/kopainter/ko_cmyk_widget.cc | 403 |
1 files changed, 403 insertions, 0 deletions
diff --git a/lib/kopainter/ko_cmyk_widget.cc b/lib/kopainter/ko_cmyk_widget.cc new file mode 100644 index 000000000..86b20ad95 --- /dev/null +++ b/lib/kopainter/ko_cmyk_widget.cc @@ -0,0 +1,403 @@ +/* + * This file is part of KOffice + * + * Copyright (c) 1999 Matthias Elter (me@kde.org) + * Copyright (c) 2001-2002 Igor Jansen (rm@kde.org) + * Copyright (c) 2005 Tim Beaulen (tbscope@gmail.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +*/ + +#include "ko_cmyk_widget.h" + +#include <qlayout.h> +#include <qhbox.h> +#include <qlabel.h> +#include <qspinbox.h> +#include <qtooltip.h> +#include <qcolor.h> + +#include <kdebug.h> +#include <kglobal.h> +#include <klocale.h> + +#include <koFrameButton.h> +#include <koColorSlider.h> +#include <kcolordialog.h> +#include <kdualcolorbutton.h> + +KoCMYKWidget::KoCMYKWidget(QWidget *parent, const char *name) : super(parent, name) +{ + m_ColorButton = new KDualColorButton(this); + m_ColorButton -> setFixedSize(m_ColorButton->sizeHint()); + QGridLayout *mGrid = new QGridLayout(this, 4, 5, 5, 2); + + /* setup color sliders */ + mCSlider = new KoColorSlider(this); + mCSlider->setMaximumHeight(20); + mCSlider->slotSetRange(0, 255); + mCSlider->setFocusPolicy( QWidget::ClickFocus ); + + mMSlider = new KoColorSlider(this); + mMSlider->setMaximumHeight(20); + mMSlider->slotSetRange(0, 255); + mMSlider->setFocusPolicy( QWidget::ClickFocus ); + + mYSlider = new KoColorSlider(this); + mYSlider->setMaximumHeight(20); + mYSlider->slotSetRange(0, 255); + mYSlider->setFocusPolicy( QWidget::ClickFocus ); + + mKSlider = new KoColorSlider(this); + mKSlider->setMaximumHeight(20); + mKSlider->slotSetRange(0, 255); + mKSlider->setFocusPolicy( QWidget::ClickFocus ); + + /* setup slider labels */ + mCLabel = new QLabel("C", this); + mCLabel->setFixedWidth(12); + mCLabel->setFixedHeight(20); + mMLabel = new QLabel("M", this); + mMLabel->setFixedWidth(12); + mMLabel->setFixedHeight(20); + mYLabel = new QLabel("Y", this); + mYLabel->setFixedWidth(12); + mYLabel->setFixedHeight(20); + mKLabel = new QLabel("K", this); + mKLabel->setFixedWidth(12); + mKLabel->setFixedHeight(20); + + /* setup spin box */ + mCIn = new QSpinBox(0, 255, 1, this); + mCIn->setFixedWidth(50); + mCIn->setFixedHeight(20); + mCIn->setFocusPolicy( QWidget::ClickFocus ); + QToolTip::add( mCIn, i18n( "Cyan" ) ); + + mMIn = new QSpinBox(0, 255, 1, this); + mMIn->setFixedWidth(50); + mMIn->setFixedHeight(20); + mMIn->setFocusPolicy( QWidget::ClickFocus ); + QToolTip::add( mMIn, i18n( "Magenta" ) ); + + mYIn = new QSpinBox(0, 255, 1, this); + mYIn->setFixedWidth(50); + mYIn->setFixedHeight(20); + mYIn->setFocusPolicy( QWidget::ClickFocus ); + QToolTip::add( mYIn, i18n( "Yellow" ) ); + + mKIn = new QSpinBox(0, 255, 1, this); + mKIn->setFixedWidth(50); + mKIn->setFixedHeight(20); + mKIn->setFocusPolicy( QWidget::ClickFocus ); + QToolTip::add( mKIn, i18n( "Black" ) ); + + mGrid->addMultiCellWidget(m_ColorButton, 0, 4, 0, 0, Qt::AlignTop); + mGrid->addWidget(mCLabel, 0, 1); + mGrid->addWidget(mMLabel, 1, 1); + mGrid->addWidget(mYLabel, 2, 1); + mGrid->addWidget(mKLabel, 3, 1); + mGrid->addMultiCellWidget(mCSlider, 0, 0, 2, 3); + mGrid->addMultiCellWidget(mMSlider, 1, 1, 2, 3); + mGrid->addMultiCellWidget(mYSlider, 2, 2, 2, 3); + mGrid->addMultiCellWidget(mKSlider, 3, 3, 2, 3); + mGrid->addWidget(mCIn, 0, 4); + mGrid->addWidget(mMIn, 1, 4); + mGrid->addWidget(mYIn, 2, 4); + mGrid->addWidget(mKIn, 3, 4); + + connect(m_ColorButton, SIGNAL(fgChanged(const QColor &)), this, SLOT(slotFGColorSelected(const QColor &))); + connect(m_ColorButton, SIGNAL(bgChanged(const QColor &)), this, SLOT(slotBGColorSelected(const QColor &))); + + /* connect color sliders */ + connect(mCSlider, SIGNAL(valueChanged(int)), this, SLOT(slotCChanged(int))); + connect(mMSlider, SIGNAL(valueChanged(int)), this, SLOT(slotMChanged(int))); + connect(mYSlider, SIGNAL(valueChanged(int)), this, SLOT(slotYChanged(int))); + connect(mKSlider, SIGNAL(valueChanged(int)), this, SLOT(slotKChanged(int))); + + /* connect spin box */ + connect(mCIn, SIGNAL(valueChanged(int)), this, SLOT(slotCChanged(int))); + connect(mMIn, SIGNAL(valueChanged(int)), this, SLOT(slotMChanged(int))); + connect(mYIn, SIGNAL(valueChanged(int)), this, SLOT(slotYChanged(int))); + connect(mKIn, SIGNAL(valueChanged(int)), this, SLOT(slotKChanged(int))); +} + +void KoCMYKWidget::slotCChanged(int c) +{ + if (m_ColorButton->current() == KDualColorButton::Foreground){ + CMYKColor col = RgbToCmyk(m_fgColor); + col.C = c / 255.0; + m_fgColor = CmykToRgb(col); + m_ColorButton->setCurrent(KDualColorButton::Foreground); + emit sigFgColorChanged(m_fgColor); + } + else{ + CMYKColor col = RgbToCmyk(m_bgColor); + col.C = c / 255.0; + m_bgColor = CmykToRgb(col); + m_ColorButton->setCurrent(KDualColorButton::Background); + emit sigBgColorChanged(m_bgColor); + } +} + +void KoCMYKWidget::slotMChanged(int m) +{ + if (m_ColorButton->current() == KDualColorButton::Foreground){ + CMYKColor col = RgbToCmyk(m_fgColor); + col.M = m / 255.0; + m_fgColor = CmykToRgb(col); + m_ColorButton->setCurrent(KDualColorButton::Foreground); + emit sigFgColorChanged(m_fgColor); + } + else{ + CMYKColor col = RgbToCmyk(m_bgColor); + col.M = m / 255.0; + m_bgColor = CmykToRgb(col); + m_ColorButton->setCurrent(KDualColorButton::Background); + emit sigBgColorChanged(m_bgColor); + } +} + +void KoCMYKWidget::slotYChanged(int y) +{ + if (m_ColorButton->current() == KDualColorButton::Foreground){ + CMYKColor col = RgbToCmyk(m_fgColor); + col.Y = y / 255.0; + m_fgColor = CmykToRgb(col); + m_ColorButton->setCurrent(KDualColorButton::Foreground); + emit sigFgColorChanged(m_fgColor); + } + else{ + CMYKColor col = RgbToCmyk(m_bgColor); + col.Y = y / 255.0; + m_bgColor = CmykToRgb(col); + m_ColorButton->setCurrent(KDualColorButton::Background); + emit sigBgColorChanged(m_bgColor); + } +} + +void KoCMYKWidget::slotKChanged(int k) +{ + if (m_ColorButton->current() == KDualColorButton::Foreground){ + CMYKColor col = RgbToCmyk(m_fgColor); + col.K = k / 255.0; + m_fgColor = CmykToRgb(col); + m_ColorButton->setCurrent(KDualColorButton::Foreground); + emit sigFgColorChanged(m_fgColor); + } + else{ + CMYKColor col = RgbToCmyk(m_bgColor); + col.K = k / 255.0; + m_bgColor = CmykToRgb(col); + m_ColorButton->setCurrent(KDualColorButton::Background); + emit sigBgColorChanged(m_bgColor); + } +} + +void KoCMYKWidget::setFgColor(const QColor & c) +{ + update(c, m_bgColor); +} + +void KoCMYKWidget::setBgColor(const QColor & c) +{ + update(m_fgColor, c); +} + +void KoCMYKWidget::update(const QColor fgColor, const QColor bgColor) +{ + m_fgColor = fgColor; + m_bgColor = bgColor; + + QColor color = (m_ColorButton->current() == KDualColorButton::Foreground)? m_fgColor : m_bgColor; + + CMYKColor col = RgbToCmyk(color); + + disconnect(m_ColorButton, SIGNAL(fgChanged(const QColor &)), this, SLOT(slotFGColorSelected(const QColor &))); + disconnect(m_ColorButton, SIGNAL(bgChanged(const QColor &)), this, SLOT(slotBGColorSelected(const QColor &))); + + m_ColorButton->setForeground( m_fgColor ); + m_ColorButton->setBackground( m_bgColor ); + + connect(m_ColorButton, SIGNAL(fgChanged(const QColor &)), this, SLOT(slotFGColorSelected(const QColor &))); + connect(m_ColorButton, SIGNAL(bgChanged(const QColor &)), this, SLOT(slotBGColorSelected(const QColor &))); + + mCSlider->blockSignals(true); + mCIn->blockSignals(true); + mMSlider->blockSignals(true); + mMIn->blockSignals(true); + mYSlider->blockSignals(true); + mYIn->blockSignals(true); + mKSlider->blockSignals(true); + mKIn->blockSignals(true); + + CMYKColor minC = col; + minC.C = 0.0; + CMYKColor maxC = col; + maxC.C = 1.0; + + mCSlider->slotSetColor1(CmykToRgb(minC)); + mCSlider->slotSetColor2(CmykToRgb(maxC)); + mCSlider->slotSetValue(int(col.C * 255)); + mCIn->setValue(int(col.C * 255)); + + CMYKColor minM = col; + minM.M = 0.0; + CMYKColor maxM = col; + maxM.M = 1.0; + + mMSlider->slotSetColor1(CmykToRgb(minM)); + mMSlider->slotSetColor2(CmykToRgb(maxM)); + mMSlider->slotSetValue(int(col.M * 255)); + mMIn->setValue(int(col.M * 255)); + + CMYKColor minY = col; + minY.Y = 0.0; + CMYKColor maxY = col; + maxY.Y = 1.0; + + mYSlider->slotSetColor1(CmykToRgb(minY)); + mYSlider->slotSetColor2(CmykToRgb(maxY)); + mYSlider->slotSetValue(int(col.Y * 255)); + mYIn->setValue(int(col.Y * 255)); + + CMYKColor minK = col; + minK.K = 0.0; + CMYKColor maxK = col; + maxK.K = 1.0; + + mKSlider->slotSetColor1(CmykToRgb(minK)); + mKSlider->slotSetColor2(CmykToRgb(maxK)); + mKSlider->slotSetValue(int(col.K * 255)); + mKIn->setValue(int(col.K * 255)); + + mCSlider->blockSignals(false); + mCIn->blockSignals(false); + mMSlider->blockSignals(false); + mMIn->blockSignals(false); + mYSlider->blockSignals(false); + mYIn->blockSignals(false); + mKSlider->blockSignals(false); + mKIn->blockSignals(false); +} + +void KoCMYKWidget::slotFGColorSelected(const QColor& c) +{ + m_fgColor = QColor(c); + emit sigFgColorChanged(m_fgColor); +} + +void KoCMYKWidget::slotBGColorSelected(const QColor& c) +{ + m_bgColor = QColor(c); + emit sigBgColorChanged(m_bgColor); +} + +CMYKColor KoCMYKWidget::RgbToCmyk(const QColor& col) +{ + kdDebug() << "--[ KoCMYKWidget::RgbToCmyk ]--------------------------------------" << endl; + kdDebug() << endl; + + // RGB to CMY + float r = col.red() / 255.0; + float g = col.green() / 255.0; + float b = col.blue() / 255.0; + + kdDebug() << "float r = col.red() / 255.0;" << endl; + kdDebug() << " r = " << col.red() << " / 255.0 = " << r << endl; + kdDebug() << "float g = col.green() / 255.0;" << endl; + kdDebug() << " g = " << col.green() << " / 255.0 = " << g << endl; + kdDebug() << "float b = col.blue() / 255.0;" << endl; + kdDebug() << " b = " << col.blue() << " / 255.0 = " << b << endl; + kdDebug() << endl; + + float ac = 1.0 - r; + float am = 1.0 - g; + float ay = 1.0 - b; + + kdDebug() << "float ac = 1.0 - r;" << endl; + kdDebug() << " ac = 1.0 - " << r << " = " << ac << endl; + kdDebug() << "float am = 1.0 - g;" << endl; + kdDebug() << " am = 1.0 - " << g << " = " << am << endl; + kdDebug() << "float ay = 1.0 - b;" << endl; + kdDebug() << " ay = 1.0 - " << b << " = " << ay << endl; + kdDebug() << endl; + + // CMY to CMYK + float c = 0.0; + float m = 0.0; + float y = 0.0; + float k = 0.0; + + if ((r == 0.0) && (g == 0.0) && (b == 0.0)) + { + kdDebug() << "r = g = b = 0.0: Therefor k = 1.0" << endl; + k = 1.0; + } + else + { + kdDebug() << "r = g = b != 0.0: Therefor k = min(ac,am,ay)" << endl; + + if (kMin(ac,am) == ac) + k = kMin(ac,ay); + else + k = kMin(am,ay); + + c = (ac - k) / (1.0 - k); + m = (am - k) / (1.0 - k); + y = (ay - k) / (1.0 - k); + } + + kdDebug() << "float k = " << k << endl; + kdDebug() << endl; + + kdDebug() << "float c = (ac - k) / (1.0 - k);" << endl; + kdDebug() << " c = (" << ac << " - " << k << ") / (1.0 - " << k << ") = " << c << endl; + kdDebug() << "float m = (am - k) / (1.0 - k);" << endl; + kdDebug() << " m = (" << am << " - " << k << ") / (1.0 - " << k << ") = " << m << endl; + kdDebug() << "float y = (ay - k) / (1.0 - k);" << endl; + kdDebug() << " y = (" << ay << " - " << k << ") / (1.0 - " << k << ") = " << y << endl; + kdDebug() << endl; + + CMYKColor color; + color.C = c; + color.M = m; + color.Y = y; + color.K = k; + + kdDebug() << "===================================================================" << endl; + + return color; +} + +QColor KoCMYKWidget::CmykToRgb(const CMYKColor& c) +{ + // CMYK to CMY + float ac = kMin(1.0, c.C * (1.0 - c.K) + c.K); + float am = kMin(1.0, c.M * (1.0 - c.K) + c.K); + float ay = kMin(1.0, c.Y * (1.0 - c.K) + c.K); + + // CMY to RGB + int r = int((1.0 - ac) * 255.0); + int g = int((1.0 - am) * 255.0); + int b = int((1.0 - ay) * 255.0); + + QColor color; + color.setRgb(r,g,b); + + return color; +} + +#include "ko_cmyk_widget.moc" |