RedPanda-CPP/RedPandaIDE/widgets/coloredit.cpp

116 lines
3.0 KiB
C++

#include "coloredit.h"
#include <QColorDialog>
#include <QPainter>
#include <QDebug>
#include <QApplication>
ColorEdit::ColorEdit(QWidget *parent):QFrame(parent)
{
setFrameStyle(QFrame::Panel);
setLineWidth(1);
mColor = QColorConstants::Black;
}
QColor ColorEdit::color()
{
return mColor;
}
void ColorEdit::setColor(const QColor &value)
{
if (mColor!=value) {
mColor=value;
emit colorChanged(value);
resize(sizeHint());
repaint();
}
}
QColor ColorEdit::contrast()
{
int crBg;
if (!mColor.isValid())
crBg = palette().color(QPalette::Base).rgb() & 0xFFFFFF;
else
crBg = mColor.rgb() & 0xFFFFFF;
int TOLERANCE = 30;
int result;
if (
abs(((crBg ) & 0xFF) - 0x80) <= TOLERANCE &&
abs(((crBg >> 8) & 0xFF) - 0x80) <= TOLERANCE &&
abs(((crBg >> 16) & 0xFF) - 0x80) <= TOLERANCE
)
result = (0x7F7F7F + crBg) & 0xFFFFFF;
else
result = crBg ^ 0xFFFFFF;
return QColor(result);
}
QSize ColorEdit::sizeHint() const
{
QRect rect;
if (mColor.isValid() )
rect = fontMetrics().boundingRect(mColor.name(QColor::HexArgb));
else
rect = fontMetrics().boundingRect(tr("NONE"));
return QSize{rect.width()+ 10,
rect.height()+ 6 };
}
void ColorEdit::paintEvent(QPaintEvent *)
{
QPainter painter(this);
QRect rect = QRect(lineWidth(),lineWidth(),width()-2*lineWidth(),height()-2*lineWidth());
if (mColor.isValid() ) {
//painter.fillRect(rect,mColor);
if (isEnabled()) {
painter.setPen(contrast());
painter.setBrush(mColor);
} else {
painter.setBrush(palette().color(QPalette::Disabled,QPalette::Text));
painter.setBrush(palette().color(QPalette::Disabled,QPalette::Base));
}
painter.drawRect(rect);
painter.drawText(rect,Qt::AlignCenter, mColor.name(QColor::HexArgb));
} else {
//painter.fillRect(rect,palette().color(QPalette::Base));
if (isEnabled()) {
painter.setBrush(palette().color(QPalette::Text));
painter.setBrush(palette().color(QPalette::Base));
} else {
painter.setBrush(palette().color(QPalette::Disabled,QPalette::Text));
painter.setBrush(palette().color(QPalette::Disabled,QPalette::Base));
}
painter.setPen(contrast());
painter.setBrush(palette().color(QPalette::Base));
painter.drawRect(rect);
painter.drawText(rect,Qt::AlignCenter, tr("NONE"));
}
}
void ColorEdit::mouseReleaseEvent(QMouseEvent *)
{
QColor c = QColorDialog::getColor(mColor,nullptr,tr("Color"),
QColorDialog::ShowAlphaChannel | QColorDialog::DontUseNativeDialog);
if (c.isValid()) {
setColor(c);
}
}
void ColorEdit::enterEvent(QEvent *)
{
setCursor(Qt::PointingHandCursor);
}
void ColorEdit::leaveEvent(QEvent *)
{
setCursor(Qt::ArrowCursor);
}
QSize ColorEdit::minimumSizeHint() const
{
return sizeHint();
}