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148 lines
4.2 KiB
148 lines
4.2 KiB
/*
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* Copyright (c) 2004 Boudewijn Rempt
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* (c) 2005 Bart Coppens <kde@bartcoppens.be>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <tqpainter.h>
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#include <tqpixmap.h>
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#include <tqlabel.h>
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#include <tqcombobox.h>
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#include <tqbuttongroup.h>
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#include <tqpushbutton.h>
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#include <tqscrollbar.h>
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#include <tqtooltip.h>
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#include <kdebug.h>
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#include "kis_channelinfo.h"
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#include "kis_histogram_view.h"
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#include "kis_histogram_widget.h"
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#include "kis_histogram.h"
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#include "kis_global.h"
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#include "kis_types.h"
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#include "kis_layer.h"
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#include "kis_paint_device.h"
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#include "kis_colorspace.h"
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KisHistogramWidget::KisHistogramWidget(TQWidget *parent, const char *name)
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: super(parent, name)
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{
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m_from = 0.0;
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m_width = 0.0;
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}
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KisHistogramWidget::~KisHistogramWidget()
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{
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}
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void KisHistogramWidget::setPaintDevice(KisPaintDeviceSP dev)
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{
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grpType->disconnect(this);
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cmbChannel->disconnect(this);
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m_histogramView->setPaintDevice(dev);
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setActiveChannel(0); // So we have the colored one if there are colors
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// The channels
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cmbChannel->clear();
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cmbChannel->insertStringList(m_histogramView->channelStrings());
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cmbChannel->setCurrentItem(0);
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// View display
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currentView->setMinValue(0);
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currentView->setMaxValue(100);
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updateEnabled();
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m_from = m_histogramView->currentProducer()->viewFrom();
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m_width = m_histogramView->currentProducer()->viewWidth();
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connect(grpType, TQT_SIGNAL(clicked(int)), this, TQT_SLOT(slotTypeSwitched(int)));
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connect(cmbChannel, TQT_SIGNAL(activated(int)), this, TQT_SLOT(setActiveChannel(int)));
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connect(zoomIn, TQT_SIGNAL(clicked()), this, TQT_SLOT(slotZoomIn()));
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connect(zoomOut, TQT_SIGNAL(clicked()), this, TQT_SLOT(slotZoomOut()));
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connect(currentView, TQT_SIGNAL(valueChanged(int)), this, TQT_SLOT(slide(int)));
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}
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void KisHistogramWidget::setActiveChannel(int channel)
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{
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m_histogramView->setActiveChannel(channel);
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updateEnabled();
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}
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void KisHistogramWidget::slotTypeSwitched(int id)
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{
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if (id == LINEAR)
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m_histogramView->setHistogramType(LINEAR);
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else if (id == LOGARITHMIC)
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m_histogramView->setHistogramType(LOGARITHMIC);
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}
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void KisHistogramWidget::setView(double from, double size)
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{
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m_from = from;
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m_width = size;
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if (m_from + m_width > 1.0)
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m_from = 1.0 - m_width;
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m_histogramView->setView(m_from, m_width);
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updateEnabled();
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}
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void KisHistogramWidget::slotZoomIn() {
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if ((m_width / 2) >= m_histogramView->currentProducer()->maximalZoom()) {
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setView(m_from, m_width / 2);
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}
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}
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void KisHistogramWidget::slotZoomOut() {
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if (m_width * 2 <= 1.0) {
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setView(m_from, m_width * 2);
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}
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}
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void KisHistogramWidget::slide(int val) {
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// Beware: at the END (e.g. 100), we want to still view m_width:
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setView((static_cast<double>(val) / 100.0) * (1.0 - m_width), m_width);
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}
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void KisHistogramWidget::updateEnabled() {
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if (m_histogramView->currentProducer()->maximalZoom() < 1.0) {
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if ((m_width / 2) >= m_histogramView->currentProducer()->maximalZoom()) {
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zoomIn->setEnabled(true);
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} else {
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zoomIn->setEnabled(false);
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}
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if (m_width * 2 <= 1.0) {
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zoomOut->setEnabled(true);
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} else {
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zoomOut->setEnabled(false);
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}
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if (m_width < 1.0)
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currentView->setEnabled(true);
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else
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currentView->setEnabled(false);
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} else {
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zoomIn->setEnabled(false);
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zoomOut->setEnabled(false);
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currentView->setEnabled(false);
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}
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}
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#include "kis_histogram_widget.moc"
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