File indexing completed on 2024-05-12 16:34:27

 /* This file is part of the KDE project
  * Copyright (c) 2009-2010 Jan Hambrecht <jaham@gmx.net>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 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 Lesser 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.
  */
 
 #include "ColorMatrixEffectConfigWidget.h"
 #include "ColorMatrixEffect.h"
 #include "KoFilterEffect.h"
 #include "MatrixDataModel.h"
 
 #include <QSpinBox>
 #include <kcombobox.h>
 #include <klocalizedstring.h>
 
 #include <QGridLayout>
 #include <QLabel>
 #include <QStackedWidget>
 #include <QTableView>
 #include <QHeaderView>
 
 ColorMatrixEffectConfigWidget::ColorMatrixEffectConfigWidget(QWidget *parent)
         : KoFilterEffectConfigWidgetBase(parent), m_effect(0)
 {
     QGridLayout * g = new QGridLayout(this);
 
     m_type = new KComboBox(this);
     m_type->addItem(i18n("Apply color matrix"));
     m_type->addItem(i18n("Saturate colors"));
     m_type->addItem(i18n("Rotate hue"));
     m_type->addItem(i18n("Luminance to alpha"));
     g->addWidget(m_type, 0, 0);
 
     m_stack = new QStackedWidget(this);
     m_stack->setContentsMargins(0, 0, 0, 0);
     g->addWidget(m_stack, 1, 0);
 
     m_matrixModel = new MatrixDataModel(this);
 
     QTableView * matrixWidget = new QTableView(m_stack);
     matrixWidget->setModel(m_matrixModel);
     matrixWidget->horizontalHeader()->hide();
     matrixWidget->horizontalHeader()->setResizeMode(QHeaderView::Stretch);
     matrixWidget->verticalHeader()->hide();
     matrixWidget->verticalHeader()->setResizeMode(QHeaderView::ResizeToContents);
     m_stack->addWidget(matrixWidget);
 
     QWidget * saturateWidget = new QWidget(m_stack);
     QGridLayout * saturateLayout = new QGridLayout(saturateWidget);
     saturateLayout->addWidget(new QLabel(i18n("Saturate value"), saturateWidget), 0, 0);
     m_saturate = new QDoubleSpinBox(saturateWidget);
     m_saturate->setRange(0.0, 1.0);
     m_saturate->setSingleStep(0.05);
     saturateLayout->addWidget(m_saturate, 0, 1);
     saturateLayout->addItem(new QSpacerItem(0, 1, QSizePolicy::Minimum, QSizePolicy::MinimumExpanding), 1, 0);
     saturateWidget->setLayout(saturateLayout);
     m_stack->addWidget(saturateWidget);
 
     QWidget * hueRotateWidget = new QWidget(m_stack);
     QGridLayout * hueRotateLayout = new QGridLayout(hueRotateWidget);
     hueRotateLayout->addWidget(new QLabel(i18n("Angle"), hueRotateWidget), 0, 0);
     m_hueRotate = new QDoubleSpinBox(hueRotateWidget);
     m_hueRotate->setRange(0.0, 360.0);
     m_hueRotate->setSingleStep(1.0);
     hueRotateLayout->addWidget(m_hueRotate, 0, 1);
     hueRotateLayout->addItem(new QSpacerItem(0, 1, QSizePolicy::Minimum, QSizePolicy::MinimumExpanding), 1, 0);
     hueRotateWidget->setLayout(hueRotateLayout);
     m_stack->addWidget(hueRotateWidget);
 
     QWidget * luminanceWidget = new QWidget(m_stack);
     m_stack->addWidget(luminanceWidget);
 
     setLayout(g);
 
     connect(m_type, SIGNAL(currentIndexChanged(int)), m_stack, SLOT(setCurrentIndex(int)));
     connect(m_type, SIGNAL(currentIndexChanged(int)), this, SLOT(typeChanged(int)));
     connect(m_saturate, SIGNAL(valueChanged(double)), this, SLOT(saturateChanged(double)));
     connect(m_hueRotate, SIGNAL(valueChanged(double)), this, SLOT(hueRotateChanged(double)));
     connect(m_matrixModel, SIGNAL(dataChanged(QModelIndex,QModelIndex)), this, SLOT(matrixChanged()));
 }
 
 bool ColorMatrixEffectConfigWidget::editFilterEffect(KoFilterEffect * filterEffect)
 {
     m_effect = dynamic_cast<ColorMatrixEffect*>(filterEffect);
     if (!m_effect)
         return false;
 
     m_type->blockSignals(true);
 
     switch (m_effect->type()) {
     case ColorMatrixEffect::Matrix:
         m_type->setCurrentIndex(0);
         m_matrixModel->setMatrix(m_effect->colorMatrix(), m_effect->colorMatrixRowCount(), m_effect->colorMatrixColumnCount());
         break;
     case ColorMatrixEffect::Saturate:
         m_type->setCurrentIndex(1);
         m_saturate->blockSignals(true);
         m_saturate->setValue(m_effect->saturate());
         m_saturate->blockSignals(false);
         break;
     case ColorMatrixEffect::HueRotate:
         m_type->setCurrentIndex(2);
         m_hueRotate->blockSignals(true);
         m_hueRotate->setValue(m_effect->hueRotate());
         m_hueRotate->blockSignals(false);
         break;
     case ColorMatrixEffect::LuminanceAlpha:
         m_type->setCurrentIndex(3);
         break;
     }
 
     m_type->blockSignals(false);
     m_stack->setCurrentIndex(m_type->currentIndex());
 
     return true;
 }
 
 void ColorMatrixEffectConfigWidget::matrixChanged()
 {
     if (!m_effect)
         return;
 
     m_effect->setColorMatrix(m_matrixModel->matrix());
     emit filterChanged();
 }
 
 void ColorMatrixEffectConfigWidget::saturateChanged(double saturate)
 {
     if (!m_effect)
         return;
 
     m_effect->setSaturate(saturate);
     emit filterChanged();
 }
 
 void ColorMatrixEffectConfigWidget::hueRotateChanged(double angle)
 {
     if (!m_effect)
         return;
 
     m_effect->setHueRotate(angle);
     emit filterChanged();
 }
 
 void ColorMatrixEffectConfigWidget::typeChanged(int index)
 {
     if (!m_effect)
         return;
 
     if (index == ColorMatrixEffect::Matrix) {
         m_effect->setColorMatrix(m_matrixModel->matrix());
     } else if (index == ColorMatrixEffect::Saturate) {
         m_effect->setSaturate(m_saturate->value());
     } else if (index == ColorMatrixEffect::HueRotate) {
         m_effect->setHueRotate(m_hueRotate->value());
     } else {
         m_effect->setLuminanceAlpha();
     }
     emit filterChanged();
 }