kis_specific_color_selector_widget.cc

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/*
 *  SPDX-FileCopyrightText: 2008 Cyrille Berger <cberger@cberger.net>
 *  SPDX-FileCopyrightText: 2015 Moritz Molch <kde@moritzmolch.de>
 *
 *  SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
#include "kis_specific_color_selector_widget.h"
#include <QLabel>
#include <QVBoxLayout>
#include <QButtonGroup>
#include <QRadioButton>
#include <QSpacerItem>
 
#include <klocalizedstring.h>
#include <kconfiggroup.h>
#include <kconfig.h>
#include <ksharedconfig.h>
 
#include <KoChannelInfo.h>
#include <KoColorSpace.h>
#include <KoColorSpaceRegistry.h>
#include <KoColorModelStandardIds.h>
#include <KoColorDisplayRendererInterface.h>
 
#include <kis_color_input.h>
#include <KoColorProfile.h>
#include <kis_debug.h>
#include <kis_color_space_selector.h>
#include <kis_signal_compressor.h>
#include <kis_display_color_converter.h>
#include <KisPopupButton.h>
#include <kis_icon_utils.h>
 
#include "ui_wdgSpecificColorSelectorWidget.h"
 
KisSpecificColorSelectorWidget::KisSpecificColorSelectorWidget(QWidget* parent)
    : QWidget(parent)
    , m_inputs()
    , m_hexInput(nullptr)
    , m_hsvSlider(nullptr)
    , m_rgbButton(nullptr)
    , m_hsxButton(nullptr)
    , m_hsvSelector(nullptr)
    , m_colorSpace(nullptr)
    , m_color()
    , m_FGColor()
    , m_updateAllowed(true)
    , m_updateCompressor(new KisSignalCompressor(10, KisSignalCompressor::POSTPONE, this))
    , m_colorspaceSelector(nullptr)
    , m_ui(nullptr)
    , m_displayConverter(nullptr)
    , m_converterConnection()
{
 
    m_ui.reset(new Ui_wdgSpecificColorSelectorWidget());
    m_ui->setupUi(this);
 
    // Set up "RGB/HSV" button group
    m_hsvSelector = new QButtonGroup(this);
    m_rgbButton = new QRadioButton("RGB", this);
    m_hsxButton = new QRadioButton("HSV", this);
    m_hsxModeComboBox = new QComboBox(this);
 
    m_hsxButton->setText("");
    m_rgbButton->setChecked(true);
    m_hsxModeComboBox->addItem(i18n("HSV"));
    m_hsxModeComboBox->addItem(i18n("HSL"));
    m_hsxModeComboBox->addItem(i18n("HSI"));
    m_hsxModeComboBox->addItem(i18n("HSY"));
 
    connect(m_hsvSelector, SIGNAL(buttonClicked(QAbstractButton*)), this, SLOT(hsvSelectorClicked(QAbstractButton*)));
    connect(m_hsxModeComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(changeHsxMode(int)));
 
    m_hsvSelector->addButton(m_rgbButton);
    m_hsvSelector->addButton(m_hsxButton);
    m_hsvSelector->setExclusive(true);
    m_rgbButton->setVisible(false);
    m_hsxButton->setVisible(false);
    m_hsxModeComboBox->setVisible(false);
 
    QSpacerItem *hsvButtonSpacer = new QSpacerItem(0, 0, QSizePolicy::Expanding, QSizePolicy::Expanding);
    m_ui->hsvButtonsLayout->addWidget(m_rgbButton);
    m_ui->hsvButtonsLayout->addWidget(m_hsxButton);
    m_ui->hsvButtonsLayout->addWidget(m_hsxModeComboBox);
    m_ui->hsvButtonsLayout->addItem(hsvButtonSpacer);
 
    // Set up HSV sliders
    m_hsvSlider = new KisHsvColorInput(this, &m_color);
    m_hsvSlider->setVisible(false);
 
    connect(m_hsvSlider, SIGNAL(updated()), this,  SLOT(update()));
    connect(this,  SIGNAL(updated()), m_hsvSlider, SLOT(update()));
 
    m_ui->hsvSlidersLayout->addWidget(m_hsvSlider);
 
    connect(m_updateCompressor, SIGNAL(timeout()), SLOT(updateTimeout()));
 
    m_colorspaceSelector = new KisColorSpaceSelector(this);
    connect(m_colorspaceSelector, SIGNAL(colorSpaceChanged(const KoColorSpace*)), this, SLOT(setCustomColorSpace(const KoColorSpace*)));
 
    m_ui->colorspacePopupButton->setPopupWidget(m_colorspaceSelector);
 
    m_ui->useSameColorSpace->setChecked(true);
    setUseSameColorSpace(m_ui->useSameColorSpace->isChecked(), false);
    connect(m_ui->useSameColorSpace, SIGNAL(toggled(bool)), this, SLOT(setUseSameColorSpace(bool)));
 
    connect(m_ui->chkUsePercentage, SIGNAL(toggled(bool)), this, SLOT(onChkUsePercentageChanged(bool)));
 
    KConfigGroup cfg =  KSharedConfig::openConfig()->group(QString());
    m_ui->chkUsePercentage->setChecked(cfg.readEntry("SpecificColorSelector/UsePercentage", false));
    m_ui->chkUsePercentage->setIcon(KisIconUtils::loadIcon("ratio"));
    m_hsxModeComboBox->setCurrentIndex(cfg.readEntry("SpecificColorSelector/HsxMode", 0));
    m_hsxButton->setChecked(cfg.readEntry("SpecificColorSelector/UseHsx", false));
 
    m_colorspaceSelector->showColorBrowserButton(false);
 
    QSpacerItem *bottomSpacer = new QSpacerItem(0, 0, QSizePolicy::Expanding, QSizePolicy::Expanding);
    m_ui->spacerLayout->addItem(bottomSpacer);
}
 
KisSpecificColorSelectorWidget::~KisSpecificColorSelectorWidget()
{
    KConfigGroup cfg =  KSharedConfig::openConfig()->group(QString());
    cfg.writeEntry("SpecificColorSelector/UsePercentage", m_ui->chkUsePercentage->isChecked());
    cfg.writeEntry("SpecificColorSelector/HsxMode", m_hsxModeComboBox->currentIndex());
    cfg.writeEntry("SpecificColorSelector/UseHsx", m_hsxButton->isChecked());
}
 
void KisSpecificColorSelectorWidget::setUseSameColorSpace(bool locked, bool reloadColorSpace)
{
    m_ui->useSameColorSpace->setIcon(locked ? KisIconUtils::loadIcon("chain-icon") : KisIconUtils::loadIcon("chain-broken-icon"));
    if (locked && reloadColorSpace) {
        rereadCurrentColorSpace();
    }
}
 
void KisSpecificColorSelectorWidget::resizeEvent(QResizeEvent *event)
{
    QWidget::resizeEvent(event);
 
    if (m_colorSpace) {
        QString elidedColorspaceName = m_ui->colorspacePopupButton->fontMetrics().elidedText(
                    m_colorSpace->name(), Qt::ElideRight,
                    m_ui->colorspacePopupButton->width()
                    );
        m_ui->colorspacePopupButton->setText(elidedColorspaceName);
    }
}
 
void KisSpecificColorSelectorWidget::setDisplayConverter(KisDisplayColorConverter *displayConverter)
{
    const bool needsForceUpdate = m_displayConverter != displayConverter;
 
    m_displayConverter = displayConverter;
 
    if (m_displayConverter) {
        m_converterConnection.clear();
        m_converterConnection.addConnection(m_displayConverter, SIGNAL(displayConfigurationChanged()), this, SLOT(rereadCurrentColorSpace()), Qt::UniqueConnection);
    }
 
    rereadCurrentColorSpace(needsForceUpdate);
}
 
void KisSpecificColorSelectorWidget::rereadCurrentColorSpace(bool force)
{
    if (m_displayConverter && m_ui->useSameColorSpace->isChecked()) {
        setColorSpace(m_displayConverter->paintingColorSpace(), force);
    } else {
        setColorSpace(m_colorSpace, force);
    }
 
    setColor(m_color);
}
 
void KisSpecificColorSelectorWidget::setColorSpace(const KoColorSpace* cs, bool force)
{
    Q_ASSERT(cs);
    dbgPlugins << cs->id() << " " << cs->profile()->name();
 
    if (m_colorSpace && *m_colorSpace == *cs && !force) {
        Q_FOREACH (KisColorInput* input, m_inputs) {
            input->update();
        }
 
        return;
    }
 
    if (cs->colorDepthId() == Integer8BitsColorDepthID || cs->colorDepthId() == Integer16BitsColorDepthID) {
        m_ui->chkUsePercentage->setVisible(true);
    } else {
        m_ui->chkUsePercentage->setVisible(false);
    }
 
    m_colorSpace = KoColorSpaceRegistry::instance()->colorSpace(cs->colorModelId().id(), cs->colorDepthId().id(), cs->profile());
    Q_ASSERT(m_colorSpace);
    Q_ASSERT(*m_colorSpace == *cs);
 
    QString elidedColorspaceName = m_ui->colorspacePopupButton->fontMetrics().elidedText(
                m_colorSpace->name(), Qt::ElideRight,
                m_ui->colorspacePopupButton->width()
                );
    m_ui->colorspacePopupButton->setText(elidedColorspaceName);
 
    m_color = KoColor(m_FGColor, m_colorSpace);
    Q_FOREACH (KisColorInput* input, m_inputs) {
        delete input;
    }
    if (m_hexInput) {
        delete m_hexInput;
        m_hexInput = nullptr;
    }
    m_inputs.clear();
 
    QList<KoChannelInfo *> channels = KoChannelInfo::displayOrderSorted(m_colorSpace->channels());
 
    KoColorDisplayRendererInterface *displayRenderer =
        m_displayConverter ?
        m_displayConverter->displayRendererInterface() :
        KisDisplayColorConverter::dumbConverterInstance()->displayRendererInterface();
 
    Q_FOREACH (KoChannelInfo* channel, channels) {
        if (channel->channelType() == KoChannelInfo::COLOR) {
            KisColorInput* input = 0;
            switch (channel->channelValueType()) {
            case KoChannelInfo::UINT8:
            case KoChannelInfo::UINT16:
            case KoChannelInfo::UINT32: {
                input = new KisIntegerColorInput(this, channel, &m_color, displayRenderer, m_ui->chkUsePercentage->isChecked());
            }
            break;
            case KoChannelInfo::FLOAT16:
            case KoChannelInfo::FLOAT32: {
                input = new KisFloatColorInput(this, channel, &m_color, displayRenderer);
            }
            break;
            default:
                Q_ASSERT(false);
                input = 0;
            }
            if (input) {
                connect(input, SIGNAL(updated()), this,  SLOT(update()));
                connect(this,  SIGNAL(updated()), input, SLOT(update()));
 
                m_inputs.append(input);
                m_ui->slidersLayout->addWidget(input);
            }
        }
    }
 
    QList<QLabel*> labels;
    int labelWidth = 0;
 
    Q_FOREACH (KisColorInput* input, m_inputs) {
        Q_FOREACH (QLabel* label, input->findChildren<QLabel*>()) {
            labels.append(label);
            labelWidth = qMax(labelWidth, label->sizeHint().width());
        }
    }
 
    Q_FOREACH (QLabel *label, labels) {
        label->setMinimumWidth(labelWidth);
    }
 
    bool allChannels8Bit = true;
    Q_FOREACH (KoChannelInfo* channel, channels) {
        if (channel->channelType() == KoChannelInfo::COLOR && channel->channelValueType() != KoChannelInfo::UINT8) {
            allChannels8Bit = false;
        }
    }
    if (allChannels8Bit) {
        // Set up the Hex input
        m_hexInput = new KisHexColorInput(this, &m_color, displayRenderer, false, true);
        m_ui->hexSelectorLayout->addWidget(m_hexInput);
        connect(m_hexInput, SIGNAL(updated()), this,  SLOT(update()));
        connect(this,  SIGNAL(updated()), m_hexInput, SLOT(update()));
    }
 
    updateHsvSelector(m_colorSpace->colorModelId() == RGBAColorModelID);
 
    m_colorspaceSelector->blockSignals(true);
    m_colorspaceSelector->setCurrentColorSpace(cs);
    m_colorspaceSelector->blockSignals(false);
 
    m_updateAllowed = false;
    emit(updated());
    m_updateAllowed = true;
}
 
void KisSpecificColorSelectorWidget::update()
{
    if (m_updateAllowed) {
        m_updateCompressor->start();
    }
}
void KisSpecificColorSelectorWidget::setColor(const KoColor& c)
{
    m_updateAllowed = false;
    m_color.fromKoColor(c);
    emit(updated());
    m_updateAllowed = true;
}
 
void KisSpecificColorSelectorWidget::setFGColor(const KoColor& c)
{
    m_FGColor = c;
}
 
 
void KisSpecificColorSelectorWidget::updateTimeout()
{
    emit(colorChanged(m_color));
}
 
void KisSpecificColorSelectorWidget::setCustomColorSpace(const KoColorSpace *colorSpace)
{
    m_ui->useSameColorSpace->setChecked(false);
    setColorSpace(colorSpace);
    setColor(m_color);
}
 
void KisSpecificColorSelectorWidget::onChkUsePercentageChanged(bool isChecked)
{
    for (auto input: m_inputs) {
        input->setPercentageWise(isChecked);
    }
    emit(updated());
}
 
void KisSpecificColorSelectorWidget::hsvSelectorClicked(QAbstractButton *)
{
    updateHsvSelector(m_colorSpace ? m_colorSpace->colorModelId() == RGBAColorModelID : false);
}
 
void KisSpecificColorSelectorWidget::changeHsxMode(int index) {
    m_hsvSlider->setMixMode((KisHsvColorSlider::MIX_MODE)(index + 1));
}
 
void KisSpecificColorSelectorWidget::updateHsvSelector(bool isRgbColorSpace)
{
    m_rgbButton->setVisible(isRgbColorSpace);
    m_hsxButton->setVisible(isRgbColorSpace);
    m_hsxModeComboBox->setVisible(isRgbColorSpace);
 
    if (!isRgbColorSpace) {
        // Force to be RGB only
        m_hsvSlider->setVisible(false);
        Q_FOREACH (KisColorInput* input, m_inputs) {
            input->setVisible(true);
        }
        m_ui->chkUsePercentage->setEnabled(true);
 
        return;
    }
 
    Q_FOREACH (KisColorInput* input, m_inputs) {
        input->setVisible(m_rgbButton->isChecked());
    }
    m_ui->chkUsePercentage->setEnabled(m_rgbButton->isChecked());
 
    m_hsvSlider->setVisible(m_hsxButton->isChecked());
}