File indexing completed on 2024-05-12 16:34:29
0001 /* This file is part of the KDE project 0002 * Copyright (c) 2010 Jan Hambrecht <jaham@gmx.net> 0003 * 0004 * This library is free software; you can redistribute it and/or 0005 * modify it under the terms of the GNU Lesser General Public 0006 * License as published by the Free Software Foundation; either 0007 * version 2.1 of the License, or (at your option) any later version. 0008 * 0009 * This library is distributed in the hope that it will be useful, 0010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 0011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 0012 * Library General Public License for more details. 0013 * 0014 * You should have received a copy of the GNU Lesser General Public License 0015 * along with this library; see the file COPYING.LIB. If not, write to 0016 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 0017 * Boston, MA 02110-1301, USA. 0018 */ 0019 0020 #include "ConvolveMatrixEffectConfigWidget.h" 0021 #include "ConvolveMatrixEffect.h" 0022 #include "KoFilterEffect.h" 0023 #include "MatrixDataModel.h" 0024 0025 #include <klocalizedstring.h> 0026 #include <kcombobox.h> 0027 #include <QDialog> 0028 0029 #include <QGridLayout> 0030 #include <QLabel> 0031 #include <QDoubleSpinBox> 0032 #include <QPushButton> 0033 #include <QCheckBox> 0034 #include <QTableView> 0035 #include <QHeaderView> 0036 #include <KConfigGroup> 0037 #include <QDialogButtonBox> 0038 0039 ConvolveMatrixEffectConfigWidget::ConvolveMatrixEffectConfigWidget(QWidget *parent) 0040 : KoFilterEffectConfigWidgetBase(parent), m_effect(0) 0041 { 0042 QGridLayout * g = new QGridLayout(this); 0043 0044 m_edgeMode = new KComboBox(this); 0045 m_edgeMode->addItem(i18n("Duplicate")); 0046 m_edgeMode->addItem(i18n("Wrap")); 0047 m_edgeMode->addItem(i18n("None")); 0048 g->addWidget(new QLabel(i18n("Edge mode:"), this), 0, 0); 0049 g->addWidget(m_edgeMode, 0, 1, 1, 3); 0050 0051 m_orderX = new QSpinBox(this); 0052 m_orderX->setRange(1, 30); 0053 m_orderY = new QSpinBox(this); 0054 m_orderY->setRange(1, 30); 0055 g->addWidget(new QLabel(i18n("Kernel size:"), this), 1, 0); 0056 g->addWidget(m_orderX, 1, 1); 0057 g->addWidget(new QLabel("X", this), 1, 2, Qt::AlignHCenter); 0058 g->addWidget(m_orderY, 1, 3); 0059 0060 m_targetX = new QSpinBox(this); 0061 m_targetX->setRange(0, 30); 0062 m_targetY = new QSpinBox(this); 0063 m_targetY->setRange(0, 30); 0064 g->addWidget(new QLabel(i18n("Target point:"), this), 2, 0); 0065 g->addWidget(m_targetX, 2, 1); 0066 g->addWidget(new QLabel("X", this), 2, 2, Qt::AlignHCenter); 0067 g->addWidget(m_targetY, 2, 3); 0068 0069 m_divisor = new QDoubleSpinBox(this); 0070 m_bias = new QDoubleSpinBox(this); 0071 g->addWidget(new QLabel(i18n("Divisor:"), this), 3, 0); 0072 g->addWidget(m_divisor, 3, 1); 0073 g->addWidget(new QLabel(i18n("Bias:"), this), 3, 2); 0074 g->addWidget(m_bias, 3, 3); 0075 0076 m_preserveAlpha = new QCheckBox(i18n("Preserve alpha"), this); 0077 g->addWidget(m_preserveAlpha, 4, 1, 1, 3); 0078 0079 QPushButton * kernelButton = new QPushButton(i18n("Edit kernel"), this); 0080 g->addWidget(kernelButton, 5, 0, 1, 4); 0081 0082 setLayout(g); 0083 0084 connect(m_edgeMode, SIGNAL(currentIndexChanged(int)), this, SLOT(edgeModeChanged(int))); 0085 connect(m_orderX, SIGNAL(valueChanged(int)), this, SLOT(orderChanged(int))); 0086 connect(m_orderY, SIGNAL(valueChanged(int)), this, SLOT(orderChanged(int))); 0087 connect(m_targetX, SIGNAL(valueChanged(int)), this, SLOT(targetChanged(int))); 0088 connect(m_targetY, SIGNAL(valueChanged(int)), this, SLOT(targetChanged(int))); 0089 connect(m_divisor, SIGNAL(valueChanged(double)), this, SLOT(divisorChanged(double))); 0090 connect(m_bias, SIGNAL(valueChanged(double)), this, SLOT(biasChanged(double))); 0091 connect(kernelButton, SIGNAL(clicked(bool)), this, SLOT(editKernel())); 0092 connect(m_preserveAlpha, SIGNAL(toggled(bool)), this, SLOT(preserveAlphaChanged(bool))); 0093 0094 m_matrixModel = new MatrixDataModel(this); 0095 } 0096 0097 bool ConvolveMatrixEffectConfigWidget::editFilterEffect(KoFilterEffect * filterEffect) 0098 { 0099 m_effect = dynamic_cast<ConvolveMatrixEffect*>(filterEffect); 0100 if (!m_effect) 0101 return false; 0102 0103 m_edgeMode->blockSignals(true); 0104 m_edgeMode->setCurrentIndex(m_effect->edgeMode()); 0105 m_edgeMode->blockSignals(false); 0106 m_orderX->blockSignals(true); 0107 m_orderX->setValue(m_effect->order().x()); 0108 m_orderX->blockSignals(false); 0109 m_orderY->blockSignals(true); 0110 m_orderY->setValue(m_effect->order().y()); 0111 m_orderY->blockSignals(false); 0112 m_targetX->blockSignals(true); 0113 m_targetX->setMaximum(m_orderX->value()); 0114 m_targetX->setValue(m_effect->target().x()+1); 0115 m_targetX->blockSignals(false); 0116 m_targetY->blockSignals(true); 0117 m_targetY->setMaximum(m_orderY->value()); 0118 m_targetY->setValue(m_effect->target().y()+1); 0119 m_targetY->blockSignals(false); 0120 m_divisor->blockSignals(true); 0121 m_divisor->setValue(m_effect->divisor()); 0122 m_divisor->blockSignals(false); 0123 m_bias->blockSignals(true); 0124 m_bias->setValue(m_effect->bias()); 0125 m_bias->blockSignals(false); 0126 m_preserveAlpha->blockSignals(true); 0127 m_preserveAlpha->setChecked(m_effect->isPreserveAlphaEnabled()); 0128 m_preserveAlpha->blockSignals(false); 0129 0130 return true; 0131 } 0132 0133 void ConvolveMatrixEffectConfigWidget::edgeModeChanged(int id) 0134 { 0135 if (!m_effect) 0136 return; 0137 0138 switch(id) { 0139 case ConvolveMatrixEffect::Duplicate: 0140 m_effect->setEdgeMode(ConvolveMatrixEffect::Duplicate); 0141 break; 0142 case ConvolveMatrixEffect::Wrap: 0143 m_effect->setEdgeMode(ConvolveMatrixEffect::Wrap); 0144 break; 0145 case ConvolveMatrixEffect::None: 0146 m_effect->setEdgeMode(ConvolveMatrixEffect::None); 0147 break; 0148 } 0149 emit filterChanged(); 0150 } 0151 0152 void ConvolveMatrixEffectConfigWidget::orderChanged(int) 0153 { 0154 if (!m_effect) 0155 return; 0156 0157 QPoint newOrder(m_orderX->value(), m_orderY->value()); 0158 QPoint oldOrder = m_effect->order(); 0159 if (newOrder != oldOrder) { 0160 m_effect->setOrder(newOrder); 0161 const int newSize = newOrder.x() * newOrder.y(); 0162 const int oldSize = oldOrder.x() * oldOrder.y(); 0163 QVector<qreal> kernel = m_effect->kernel(); 0164 if (newSize > oldSize) { 0165 kernel.insert(kernel.end(), newSize-oldSize, 0); 0166 } else { 0167 kernel.resize(newSize); 0168 } 0169 m_effect->setKernel(kernel); 0170 emit filterChanged(); 0171 } 0172 0173 m_targetX->setMaximum(newOrder.x()); 0174 m_targetY->setMaximum(newOrder.y()); 0175 } 0176 0177 void ConvolveMatrixEffectConfigWidget::targetChanged(int) 0178 { 0179 if (!m_effect) 0180 return; 0181 0182 QPoint newTarget(m_targetX->value()-1, m_targetY->value()-1); 0183 QPoint oldTarget = m_effect->target(); 0184 if (newTarget != oldTarget) { 0185 m_effect->setTarget(newTarget); 0186 emit filterChanged(); 0187 } 0188 } 0189 0190 void ConvolveMatrixEffectConfigWidget::divisorChanged(double divisor) 0191 { 0192 if (!m_effect) 0193 return; 0194 0195 if (divisor != m_effect->divisor()) { 0196 m_effect->setDivisor(divisor); 0197 emit filterChanged(); 0198 } 0199 } 0200 0201 void ConvolveMatrixEffectConfigWidget::biasChanged(double bias) 0202 { 0203 if (!m_effect) 0204 return; 0205 0206 if (bias != m_effect->bias()) { 0207 m_effect->setBias(bias); 0208 emit filterChanged(); 0209 } 0210 } 0211 0212 void ConvolveMatrixEffectConfigWidget::preserveAlphaChanged(bool checked) 0213 { 0214 if (!m_effect) 0215 return; 0216 0217 m_effect->enablePreserveAlpha(checked); 0218 emit filterChanged(); 0219 } 0220 0221 void ConvolveMatrixEffectConfigWidget::editKernel() 0222 { 0223 if (!m_effect) 0224 return; 0225 0226 QVector<qreal> oldKernel = m_effect->kernel(); 0227 QPoint kernelSize = m_effect->order(); 0228 m_matrixModel->setMatrix(oldKernel, kernelSize.y(), kernelSize.x()); 0229 connect(m_matrixModel, SIGNAL(dataChanged(QModelIndex,QModelIndex)), this, SLOT(kernelChanged())); 0230 0231 QPointer<QDialog> dlg = new QDialog(this); 0232 QTableView * table = new QTableView(dlg); 0233 table->setModel(m_matrixModel); 0234 table->horizontalHeader()->hide(); 0235 table->horizontalHeader()->setResizeMode(QHeaderView::Stretch); 0236 table->verticalHeader()->hide(); 0237 table->verticalHeader()->setResizeMode(QHeaderView::ResizeToContents); 0238 QVBoxLayout *mainLayout = new QVBoxLayout; 0239 dlg->setLayout(mainLayout); 0240 mainLayout->addWidget(table); 0241 QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok|QDialogButtonBox::Cancel, dlg); 0242 QPushButton *okButton = buttonBox->button(QDialogButtonBox::Ok); 0243 okButton->setDefault(true); 0244 okButton->setShortcut(Qt::Key_Return); 0245 mainLayout->addWidget(buttonBox); 0246 connect(buttonBox, SIGNAL(accepted()), dlg, SLOT(accept())); 0247 connect(buttonBox, SIGNAL(rejected()), dlg, SLOT(reject())); 0248 if (dlg->exec() == QDialog::Accepted) { 0249 m_effect->setKernel(m_matrixModel->matrix()); 0250 emit filterChanged(); 0251 } else { 0252 m_effect->setKernel(oldKernel); 0253 } 0254 delete dlg; 0255 0256 disconnect(m_matrixModel, SIGNAL(dataChanged(QModelIndex,QModelIndex)), this, SLOT(kernelChanged())); 0257 } 0258 0259 void ConvolveMatrixEffectConfigWidget::kernelChanged() 0260 { 0261 if (!m_effect) 0262 return; 0263 0264 m_effect->setKernel(m_matrixModel->matrix()); 0265 emit filterChanged(); 0266 }