WGColorPreviewToolTip Class Reference

#include <WGColorPreviewToolTip.h>

Inheritance diagram for WGColorPreviewToolTip:

Public Member Functions
void	setCurrentColor (const QColor &color)
void	setLastUsedColor (const QColor &color)
void	setPreviousColor (const QColor &color)
void	show (const QWidget *focus=nullptr)
void	updatePosition (const QWidget *focus)
	WGColorPreviewToolTip (QWidget *parent=nullptr)

Static Public Member Functions
static qreal	estimateBrightness (QColor col)

Protected Member Functions
void	paintEvent (QPaintEvent *e) override

Private Attributes
QIcon	m_brushIcon
QColor	m_color
QColor	m_lastUsedColor
QColor	m_previousColor

Detailed Description

Definition at line 17 of file WGColorPreviewToolTip.h.

Constructor & Destructor Documentation

WGColorPreviewToolTip()

WGColorPreviewToolTip::WGColorPreviewToolTip ( QWidget * parent = nullptr )

explicit

Definition at line 18 of file WGColorPreviewToolTip.cpp.

    : QWidget(parent)
    , m_color(0, 0, 0)
    , m_previousColor(0, 0, 0, 0)
    , m_lastUsedColor(0, 0, 0, 0)
{
    setWindowFlags(Qt::ToolTip | Qt::NoDropShadowWindowHint);
    setAttribute(Qt::WA_TranslucentBackground);
    resize(100, 150);
    QString iconFile(":/dark_krita_tool_freehand.svg");
    if (QFile(iconFile).exists()) {
        m_brushIcon.addFile(iconFile, QSize(16, 16));
    }
    iconFile = ":/light_krita_tool_freehand.svg";
    if (QFile(iconFile).exists()) {
        m_brushIcon.addFile(iconFile, QSize(16, 16), QIcon::Normal, QIcon::On);
    }
}

References m_brushIcon.

Member Function Documentation

estimateBrightness()

qreal WGColorPreviewToolTip::estimateBrightness ( QColor col )

static

Definition at line 59 of file WGColorPreviewToolTip.cpp.

{
    // a cheap approximation of luma assuming sRGB with gamma = 2.0
    return std::sqrt(col.redF() * col.redF() * 0.21 +
                     col.greenF() * col.greenF() * 0.71 +
                     col.blueF() * col.blueF() * 0.08);
}

paintEvent()

void WGColorPreviewToolTip::paintEvent ( QPaintEvent * e )

overrideprotected

Definition at line 67 of file WGColorPreviewToolTip.cpp.

                                                     {
    Q_UNUSED(e)
    QPainter painter(this);
    painter.fillRect(0, 0, width(), width(), m_color);
    painter.fillRect(0, width(), width()/2, height(), m_previousColor);
    painter.fillRect(width()/2, width(), width(), height(), m_lastUsedColor);
 
    QPixmap icon;
    QWindow *window = windowHandle();
    if (window && m_lastUsedColor.alpha() > 0) {
        QIcon::State iconState;
        iconState = estimateBrightness(m_lastUsedColor) > 0.5 ? QIcon::Off : QIcon::On;
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
        icon = m_brushIcon.pixmap(window, QSize(16, 16), QIcon::Normal, iconState);
#else
        icon = m_brushIcon.pixmap(QSize(16, 16), window->devicePixelRatio(), QIcon::Normal, iconState);
#endif
    }
    if (!icon.isNull()) {
        painter.drawPixmap(width() - 18, height() - 18, icon);
    }
}

References estimateBrightness(), m_brushIcon, m_color, m_lastUsedColor, and m_previousColor.

setCurrentColor()

void WGColorPreviewToolTip::setCurrentColor ( const QColor & color )

inline

Definition at line 31 of file WGColorPreviewToolTip.h.

    {
        m_color = color;
        update();
    }

References m_color.

setLastUsedColor()

void WGColorPreviewToolTip::setLastUsedColor ( const QColor & color )

inline

Definition at line 43 of file WGColorPreviewToolTip.h.

    {
        m_lastUsedColor = color;
        update();
    }

References m_lastUsedColor.

setPreviousColor()

void WGColorPreviewToolTip::setPreviousColor ( const QColor & color )

inline

Definition at line 37 of file WGColorPreviewToolTip.h.

    {
        m_previousColor = color;
        update();
    }

References m_previousColor.

show()

void WGColorPreviewToolTip::show ( const QWidget * focus = nullptr )

inline

Definition at line 23 of file WGColorPreviewToolTip.h.

    {
        updatePosition(focus);
        QWidget::show();
    }

References updatePosition().

updatePosition()

void WGColorPreviewToolTip::updatePosition

(

const QWidget *

focus

)

Definition at line 37 of file WGColorPreviewToolTip.cpp.

{
    const QWidget *parent = focus ? focus : parentWidget();
    if (!parent) {
        return;
    }
 
    QPoint parentPos = parent->mapToGlobal(QPoint(0,0));
    const QRect availRect = this->screen()->availableGeometry();
    QPoint targetPos;
    if (parentPos.x() - width() > availRect.x()) {
        targetPos =  QPoint(parentPos.x() - width(), parentPos.y());
    } else if (parentPos.x() + parent->width() + width() < availRect.right()) {
        targetPos = parent->mapToGlobal(QPoint(parent->width(), 0));
    } else if (parentPos.y() - height() > availRect.y()) {
        targetPos =  QPoint(parentPos.x(), parentPos.y() - height());
    } else {
        targetPos =  QPoint(parentPos.x(), parentPos.y() + parent->height());
    }
    move(targetPos);
}

Member Data Documentation

m_brushIcon

QIcon WGColorPreviewToolTip::m_brushIcon

private

Definition at line 57 of file WGColorPreviewToolTip.h.

m_color

QColor WGColorPreviewToolTip::m_color

private

Definition at line 54 of file WGColorPreviewToolTip.h.

m_lastUsedColor

QColor WGColorPreviewToolTip::m_lastUsedColor

private

Definition at line 56 of file WGColorPreviewToolTip.h.

m_previousColor

QColor WGColorPreviewToolTip::m_previousColor

private

Definition at line 55 of file WGColorPreviewToolTip.h.

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The documentation for this class was generated from the following files:

• plugins/dockers/widegamutcolorselector/WGColorPreviewToolTip.h
• plugins/dockers/widegamutcolorselector/WGColorPreviewToolTip.cpp