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update

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zhuzichu
2023-07-28 16:08:58 +08:00
parent 7ba60ee570
commit 29c57bcdc3
13 changed files with 222 additions and 20 deletions
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45
src/FluWatermark.cpp Normal file
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#include "FluWatermark.h"
FluWatermark::FluWatermark(QQuickItem* parent) : QQuickPaintedItem(parent)
{
gap(QPoint(100,100));
offset(QPoint(_gap.x()/2,_gap.y()/2));
rotate(22);
setZ(9999);
textColor(QColor(222,222,222,222));
textSize(16);
connect(this,&FluWatermark::textColorChanged,this,[=]{update();});
connect(this,&FluWatermark::gapChanged,this,[=]{update();});
connect(this,&FluWatermark::offsetChanged,this,[=]{update();});
connect(this,&FluWatermark::textChanged,this,[=]{update();});
connect(this,&FluWatermark::rotateChanged,this,[=]{update();});
connect(this,&FluWatermark::textSizeChanged,this,[=]{update();});
}
void FluWatermark::paint(QPainter* painter)
{
QFont font;
font.setPixelSize(_textSize);
painter->setFont(font);
painter->setPen(_textColor);
QFontMetricsF fontMetrics(font);
qreal fontWidth = fontMetrics.horizontalAdvance(_text);
qreal fontHeight = fontMetrics.height();
int stepX = fontWidth + _gap.x();
int stepY = fontHeight + _gap.y();
int rowCount = width() / stepX+1;
int colCount = height() / stepY+1;
for (int r = 0; r < rowCount; r++)
{
for (int c = 0; c < colCount; c++)
{
qreal centerX = stepX * r + _offset.x() + fontWidth / 2.0;
qreal centerY = stepY * c + _offset.y() + fontHeight / 2.0;
painter->save();
painter->translate(centerX, centerY);
painter->rotate(_rotate);
painter->drawText(QRectF(-fontWidth / 2.0, -fontHeight / 2.0, fontWidth, fontHeight), _text);
painter->restore();
}
}
}