valentina/src/app/puzzle/vptilefactory.cpp

801 lines
29 KiB
C++

#include "vptilefactory.h"
#include <QtSvg>
#include "../vlayout/vprintlayout.h"
#include "../vmisc/compatibility.h"
#include "../vmisc/def.h"
#include "../vmisc/literals.h"
#include "../vmisc/vcommonsettings.h"
#include "../vwidgets/vmaingraphicsscene.h"
#include "layout/vplayout.h"
#include "layout/vpsheet.h"
#include "theme/vtheme.h"
using namespace Qt::Literals::StringLiterals;
namespace
{
QT_WARNING_PUSH
QT_WARNING_DISABLE_CLANG("-Wunused-member-function")
Q_GLOBAL_STATIC_WITH_ARGS(QColor, tileColor, (180, 180, 180)) // NOLINT
Q_GLOBAL_STATIC_WITH_ARGS(QBrush, triangleBush, (QColor(200, 200, 200))) // NOLINT
QT_WARNING_POP
//---------------------------------------------------------------------------------------------------------------------
auto Grayscale(QImage image) -> QImage
{
for (int ii = 0; ii < image.height(); ii++)
{
uchar *scan = image.scanLine(ii);
int const depth = 4;
for (int jj = 0; jj < image.width(); jj++)
{
auto *rgbpixel = reinterpret_cast<QRgb *>(scan + jj * depth); // NOLINT
int const gray = qGray(*rgbpixel);
*rgbpixel = QColor(gray, gray, gray, qAlpha(*rgbpixel)).rgba();
}
}
return image;
}
//---------------------------------------------------------------------------------------------------------------------
auto WatermarkImageFromCache(const VWatermarkData &watermarkData, const QString &watermarkPath, qreal xScale,
qreal yScale, QString &error) -> QPixmap
{
QPixmap pixmap;
QString const imagePath = AbsoluteMPath(watermarkPath, watermarkData.path);
if (QString const imageCacheKey = QStringLiteral("puzzle=path%1+rotation%3+grayscale%4+xscale%5+yxcale%6")
.arg(imagePath, QString::number(watermarkData.imageRotation),
watermarkData.grayscale ? trueStr : falseStr)
.arg(xScale)
.arg(yScale);
not QPixmapCache::find(imageCacheKey, &pixmap))
{
QImageReader imageReader(imagePath);
QImage watermark = imageReader.read();
if (watermark.isNull())
{
error = imageReader.errorString();
return pixmap;
}
if (watermarkData.grayscale)
{
watermark = Grayscale(watermark);
}
QTransform t;
t.scale(1 / xScale, 1 / yScale);
watermark = watermark.transformed(t);
t = QTransform();
t.translate(watermark.width() / 2., watermark.height() / 2.);
t.rotate(-watermarkData.imageRotation);
t.translate(-watermark.width() / 2., -watermark.height() / 2.);
watermark = watermark.transformed(t);
pixmap = QPixmap::fromImage(watermark);
QPixmapCache::insert(imageCacheKey, pixmap);
}
return pixmap;
}
//---------------------------------------------------------------------------------------------------------------------
// ------------- prepare triangles for position marks
auto TriangleBasic() -> QPainterPath
{
// ------------- prepare triangles for position marks
QRectF const rectBasic = QRectF(-UnitConvertor(0.5, Unit::Cm, Unit::Px), 0, UnitConvertor(1, Unit::Cm, Unit::Px),
UnitConvertor(0.5, Unit::Cm, Unit::Px));
QPainterPath triangleBasic;
triangleBasic.moveTo(rectBasic.topLeft());
triangleBasic.lineTo(rectBasic.topRight());
triangleBasic.lineTo(rectBasic.left() + (rectBasic.width() / 2.), rectBasic.bottom());
triangleBasic.lineTo(rectBasic.topLeft());
return triangleBasic;
}
} // namespace
//---------------------------------------------------------------------------------------------------------------------
VPTileFactory::VPTileFactory(const VPLayoutPtr &layout, VCommonSettings *commonSettings, QObject *parent)
: QObject(parent),
m_layout(layout),
m_commonSettings(commonSettings)
{
}
//---------------------------------------------------------------------------------------------------------------------
void VPTileFactory::RefreshTileInfos()
{
VPLayoutPtr const layout = m_layout.toStrongRef();
if (not layout.isNull())
{
QSizeF const tilesSize = layout->LayoutSettings().GetTilesSize();
QMarginsF const tilesMargins = layout->LayoutSettings().GetTilesMargins();
// sets the drawing height
m_drawingAreaHeight = tilesSize.height();
if (not layout->LayoutSettings().IgnoreTilesMargins())
{
m_drawingAreaHeight -= tilesMargins.top() + tilesMargins.bottom();
}
// sets the drawing width
m_drawingAreaWidth = tilesSize.width();
if (not layout->LayoutSettings().IgnoreTilesMargins())
{
m_drawingAreaWidth -= tilesMargins.left() + tilesMargins.right();
}
}
}
//---------------------------------------------------------------------------------------------------------------------
void VPTileFactory::RefreshWatermarkData()
{
VPLayoutPtr const layout = m_layout.toStrongRef();
if (not layout.isNull())
{
m_watermarkData = layout->WatermarkData();
}
else
{
m_watermarkData = VWatermarkData();
}
}
//---------------------------------------------------------------------------------------------------------------------
void VPTileFactory::drawTile(QPainter *painter, QPrinter *printer, const VPSheetPtr &sheet, int row, int col)
{
SCASSERT(painter != nullptr)
SCASSERT(printer != nullptr)
if (sheet.isNull())
{
return;
}
const int nbCol = ColNb(sheet);
const int nbRow = RowNb(sheet);
if (row < 0 || row > nbRow || col < 0 || col > nbCol)
{
return;
}
DrawTilePageContent(painter, sheet, row, col, printer);
// add the tiles decorations (cutting and gluing lines, scissors, infos etc.)
painter->setPen(PenTileInfos());
painter->save();
const QPair<qreal, qreal> scale = VPrintLayout::PrinterScaleDiff(printer);
painter->scale(scale.first, scale.second);
if (row > 0)
{
// add top triangle
DrawTopTriangle(painter);
// scissors along the top line
DrawTopLineScissors(painter);
// dashed top line (for cutting)
DrawTopCuttingLine(painter);
}
else
{
// solid top line stopping at the edge
DrawSolidTopLine(painter, col, nbCol);
}
if (col > 0)
{
// add left triangle
DrawLeftTriangle(painter);
// scissors along the left line
DrawLeftLineScissors(painter);
// dashed left line (for cutting)
DrawLeftCuttingLine(painter);
}
else
{
// solid left line at the edge
DrawSolidLeftLine(painter, row, nbRow);
}
if (row < nbRow - 1)
{
// add bottom triangle
DrawBottomTriangle(painter);
// dotted bottom line (for glueing)
DrawBottomCuttingLine(painter);
}
else
{
// solid bottom line at the edge
DrawSolidBottomLine(painter, col, nbCol);
}
DrawRuler(painter, scale.first);
DrawWatermark(painter);
if (col < nbCol - 1)
{
// add right triangle
DrawRightTriangle(painter);
// dotted right line (for glueing)
DrawRightCuttingLine(painter);
}
else
{
// solid right line at the edge
DrawSolidRightLine(painter, row, nbRow);
}
// prepare the painting for the text information
DrawTextInformation(painter, row, col, nbRow, nbCol, sheet->GetName());
painter->restore();
}
//---------------------------------------------------------------------------------------------------------------------
auto VPTileFactory::RowNb(const VPSheetPtr &sheet) const -> int
{
if (sheet.isNull())
{
return 0;
}
qreal yScale = 1;
if (VPLayoutPtr const layout = m_layout.toStrongRef(); not layout.isNull())
{
yScale = layout->LayoutSettings().VerticalScale();
}
QRectF const sheetSize = sheet->GetMarginsRect();
return qCeil(sheetSize.height() * yScale / (m_drawingAreaHeight - tileStripeWidth));
}
//---------------------------------------------------------------------------------------------------------------------
auto VPTileFactory::ColNb(const VPSheetPtr &sheet) const -> int
{
if (sheet.isNull())
{
return 0;
}
qreal xScale = 1;
if (VPLayoutPtr const layout = m_layout.toStrongRef(); not layout.isNull())
{
xScale = layout->LayoutSettings().HorizontalScale();
}
QRectF const sheetSize = sheet->GetMarginsRect();
return qCeil(sheetSize.width() * xScale / (m_drawingAreaWidth - tileStripeWidth));
}
//---------------------------------------------------------------------------------------------------------------------
auto VPTileFactory::DrawingAreaHeight() const -> qreal
{
return m_drawingAreaHeight;
}
//---------------------------------------------------------------------------------------------------------------------
auto VPTileFactory::DrawingAreaWidth() const -> qreal
{
return m_drawingAreaWidth;
}
//---------------------------------------------------------------------------------------------------------------------
auto VPTileFactory::WatermarkData() const -> const VWatermarkData &
{
return m_watermarkData;
}
//---------------------------------------------------------------------------------------------------------------------
void VPTileFactory::DrawRuler(QPainter *painter, qreal scale) const
{
VPLayoutPtr const layout = m_layout.toStrongRef();
if (layout.isNull())
{
return;
}
QPen const rulePen(*tileColor, 1, Qt::SolidLine);
painter->save();
painter->setPen(rulePen);
const qreal notchHeight = UnitConvertor(3, Unit::Mm, Unit::Px);
const qreal shortNotchHeight = UnitConvertor(1.1, Unit::Mm, Unit::Px);
Unit const layoutUnits = layout->LayoutSettings().GetUnit();
Unit const rulerUnits = layoutUnits == Unit::Inch ? layoutUnits : Unit::Cm;
const qreal step = UnitConvertor(1, rulerUnits, Unit::Px);
double const marksCount = (m_drawingAreaWidth - tileStripeWidth) / step;
int i = 0;
while (i < marksCount)
{
if (i != 0)
{ // don't need 0 notch
// middle ruler line
painter->drawLine(QPointF(step * i - step / 2., m_drawingAreaHeight - tileStripeWidth),
QPointF(step * i - step / 2., m_drawingAreaHeight - tileStripeWidth + shortNotchHeight));
// ruler line
painter->drawLine(QPointF(step * i, m_drawingAreaHeight - tileStripeWidth),
QPointF(step * i, m_drawingAreaHeight - tileStripeWidth + notchHeight));
}
else
{
painter->save();
QFont fnt = painter->font();
const int size = qRound(10 / scale);
size > 0 ? fnt.setPointSize(size) : fnt.setPointSize(10);
painter->setFont(fnt);
qreal unitsWidth = 0;
QFontMetrics const fm(fnt);
QString const units = rulerUnits != Unit::Inch ? tr("cm", "unit") : tr("in", "unit");
unitsWidth = fm.horizontalAdvance(units);
painter->drawText(QPointF(step * 0.5 - unitsWidth * 0.6,
m_drawingAreaHeight - tileStripeWidth + notchHeight + shortNotchHeight),
units);
painter->restore();
}
++i;
}
painter->restore();
}
//---------------------------------------------------------------------------------------------------------------------
void VPTileFactory::DrawWatermark(QPainter *painter) const
{
SCASSERT(painter != nullptr)
VPLayoutPtr const layout = m_layout.toStrongRef();
if (layout.isNull())
{
return;
}
if (m_watermarkData.opacity > 0)
{
QRectF const img(0, 0, m_drawingAreaWidth - tileStripeWidth, m_drawingAreaHeight - tileStripeWidth);
if (m_watermarkData.showImage && not m_watermarkData.path.isEmpty())
{
PaintWatermarkImage(painter, img, m_watermarkData, layout->LayoutSettings().WatermarkPath(), false);
}
if (m_watermarkData.showText && not m_watermarkData.text.isEmpty())
{
PaintWatermarkText(painter, img, m_watermarkData);
}
}
}
//---------------------------------------------------------------------------------------------------------------------
inline auto VPTileFactory::PenTileInfos() const -> QPen
{
return {*tileColor, m_commonSettings->WidthHairLine(), Qt::DashLine, Qt::RoundCap, Qt::RoundJoin};
}
//---------------------------------------------------------------------------------------------------------------------
void VPTileFactory::DrawTilePageContent(QPainter *painter, const VPSheetPtr &sheet, int row, int col,
QPrinter *printer) const
{
VPLayoutPtr const layout = m_layout.toStrongRef();
if (layout.isNull())
{
return;
}
QMarginsF sheetMargins;
if (not sheet->IgnoreMargins())
{
sheetMargins = sheet->GetSheetMargins();
}
QPen const penTileDrawing =
QPen(Qt::black, m_commonSettings->WidthMainLine(), Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin);
painter->setPen(penTileDrawing);
// paint the content of the page
const qreal xScale = layout->LayoutSettings().HorizontalScale();
const qreal yScale = layout->LayoutSettings().VerticalScale();
QRectF const source = QRectF(sheetMargins.left() + col * (m_drawingAreaWidth - tileStripeWidth) / xScale,
sheetMargins.top() + row * (m_drawingAreaHeight - tileStripeWidth) / yScale,
m_drawingAreaWidth / xScale, m_drawingAreaHeight / yScale);
QRectF const target = QRectF(0, 0, m_drawingAreaWidth, m_drawingAreaHeight);
sheet->SceneData()->Scene()->render(painter, VPrintLayout::SceneTargetRect(printer, target), source,
Qt::IgnoreAspectRatio);
}
//---------------------------------------------------------------------------------------------------------------------
void VPTileFactory::DrawTopTriangle(QPainter *painter) const
{
QPainterPath const triangleTop = QTransform().translate(m_drawingAreaWidth / 2, 0).map(TriangleBasic());
painter->fillPath(triangleTop, *triangleBush);
}
//---------------------------------------------------------------------------------------------------------------------
void VPTileFactory::DrawLeftTriangle(QPainter *painter) const
{
QPainterPath const triangleLeft =
QTransform().translate(0, m_drawingAreaHeight / 2).rotate(-90).map(TriangleBasic());
painter->fillPath(triangleLeft, *triangleBush);
}
//---------------------------------------------------------------------------------------------------------------------
void VPTileFactory::DrawBottomTriangle(QPainter *painter) const
{
QPainterPath const triangleBottom = QTransform()
.translate(m_drawingAreaWidth / 2, m_drawingAreaHeight - tileStripeWidth)
.rotate(180)
.map(TriangleBasic());
painter->fillPath(triangleBottom, *triangleBush);
}
//---------------------------------------------------------------------------------------------------------------------
void VPTileFactory::DrawRightTriangle(QPainter *painter) const
{
QPainterPath const triangleRight = QTransform()
.translate(m_drawingAreaWidth - tileStripeWidth, m_drawingAreaHeight / 2)
.rotate(90)
.map(TriangleBasic());
painter->fillPath(triangleRight, *triangleBush);
}
//---------------------------------------------------------------------------------------------------------------------
void VPTileFactory::DrawTopLineScissors(QPainter *painter) const
{
QSvgRenderer svgRenderer(QStringLiteral("://puzzleicon/svg/icon_scissors_horizontal.svg"));
svgRenderer.render(painter, QRectF(m_drawingAreaWidth - tileStripeWidth, 0, UnitConvertor(0.95, Unit::Cm, Unit::Px),
UnitConvertor(0.56, Unit::Cm, Unit::Px)));
}
//---------------------------------------------------------------------------------------------------------------------
void VPTileFactory::DrawLeftLineScissors(QPainter *painter) const
{
QSvgRenderer svgRenderer(QStringLiteral("://puzzleicon/svg/icon_scissors_vertical.svg"));
svgRenderer.render(painter,
QRectF(0, m_drawingAreaHeight - tileStripeWidth, UnitConvertor(0.56, Unit::Cm, Unit::Px),
UnitConvertor(0.95, Unit::Cm, Unit::Px)));
}
//---------------------------------------------------------------------------------------------------------------------
void VPTileFactory::DrawTopCuttingLine(QPainter *painter) const
{
QPen penTileInfos = PenTileInfos();
penTileInfos.setStyle(Qt::DashLine);
painter->setPen(penTileInfos);
painter->drawLine(QPointF(), QPointF(m_drawingAreaWidth, 0));
}
//---------------------------------------------------------------------------------------------------------------------
void VPTileFactory::DrawLeftCuttingLine(QPainter *painter) const
{
QPen penTileInfos = PenTileInfos();
penTileInfos.setStyle(Qt::DashLine);
painter->setPen(penTileInfos);
painter->drawLine(QPointF(), QPointF(0, m_drawingAreaHeight));
}
//---------------------------------------------------------------------------------------------------------------------
void VPTileFactory::DrawBottomCuttingLine(QPainter *painter) const
{
QPen penTileInfos = PenTileInfos();
penTileInfos.setStyle(Qt::DotLine);
painter->setPen(penTileInfos);
painter->drawLine(QPointF(0, m_drawingAreaHeight - tileStripeWidth),
QPointF(m_drawingAreaWidth, m_drawingAreaHeight - tileStripeWidth));
}
//---------------------------------------------------------------------------------------------------------------------
void VPTileFactory::DrawRightCuttingLine(QPainter *painter) const
{
QPen penTileInfos = PenTileInfos();
penTileInfos.setStyle(Qt::DotLine);
painter->setPen(penTileInfos);
painter->drawLine(QPointF(m_drawingAreaWidth - tileStripeWidth, 0),
QPointF(m_drawingAreaWidth - tileStripeWidth, m_drawingAreaHeight));
}
//---------------------------------------------------------------------------------------------------------------------
void VPTileFactory::DrawSolidTopLine(QPainter *painter, int col, int nbCol) const
{
QPen penTileInfos = PenTileInfos();
penTileInfos.setStyle(Qt::SolidLine);
painter->setPen(penTileInfos);
if (col < nbCol - 1)
{
painter->drawLine(QPointF(), QPointF(m_drawingAreaWidth, 0));
}
else
{
painter->drawLine(QPointF(), QPointF(m_drawingAreaWidth - tileStripeWidth, 0));
}
}
//---------------------------------------------------------------------------------------------------------------------
void VPTileFactory::DrawSolidLeftLine(QPainter *painter, int row, int nbRow) const
{
QPen penTileInfos = PenTileInfos();
penTileInfos.setStyle(Qt::SolidLine);
painter->setPen(penTileInfos);
if (row < nbRow - 1)
{
painter->drawLine(QPointF(), QPointF(0, m_drawingAreaHeight));
}
else
{
painter->drawLine(QPointF(), QPointF(0, m_drawingAreaHeight - tileStripeWidth));
}
}
//---------------------------------------------------------------------------------------------------------------------
void VPTileFactory::DrawSolidBottomLine(QPainter *painter, int col, int nbCol) const
{
QPen penTileInfos = PenTileInfos();
penTileInfos.setStyle(Qt::SolidLine);
painter->setPen(penTileInfos);
if (col < nbCol - 1)
{
painter->drawLine(QPointF(0, m_drawingAreaHeight - tileStripeWidth),
QPointF(m_drawingAreaWidth, m_drawingAreaHeight - tileStripeWidth));
}
else
{
painter->drawLine(QPointF(0, m_drawingAreaHeight - tileStripeWidth),
QPointF(m_drawingAreaWidth - tileStripeWidth, m_drawingAreaHeight - tileStripeWidth));
;
}
}
//---------------------------------------------------------------------------------------------------------------------
void VPTileFactory::DrawSolidRightLine(QPainter *painter, int row, int nbRow) const
{
QPen penTileInfos = PenTileInfos();
penTileInfos.setStyle(Qt::SolidLine);
painter->setPen(penTileInfos);
if (row < nbRow - 1)
{
painter->drawLine(QPointF(m_drawingAreaWidth - tileStripeWidth, 0),
QPointF(m_drawingAreaWidth - tileStripeWidth, m_drawingAreaHeight));
}
else
{
painter->drawLine(QPointF(m_drawingAreaWidth - tileStripeWidth, 0),
QPointF(m_drawingAreaWidth - tileStripeWidth, m_drawingAreaHeight - tileStripeWidth));
}
}
//---------------------------------------------------------------------------------------------------------------------
void VPTileFactory::DrawTextInformation(QPainter *painter, int row, int col, int nbRow, int nbCol,
const QString &sheetName) const
{
QTextDocument td;
td.setPageSize(QSizeF(m_drawingAreaWidth - UnitConvertor(2, Unit::Cm, Unit::Px), m_drawingAreaHeight));
// paint the grid information
const QString grid = tr("Grid ( %1 , %2 )").arg(row + 1).arg(col + 1);
const QString tileColorStr =
QStringLiteral("%1,%2,%3").arg(tileColor->red()).arg(tileColor->green()).arg(tileColor->blue());
td.setHtml(u"<table width='100%' style='color:rgb(%1);'>"
u"<tr>"
u"<td align='center'>%2</td>"
u"</tr>"
u"</table>"_s.arg(tileColorStr, grid));
painter->setPen(PenTileInfos());
painter->save();
painter->translate(QPointF(UnitConvertor(1, Unit::Cm, Unit::Px), m_drawingAreaHeight - tileStripeWidth / 1.3));
td.drawContents(painter);
painter->restore();
// paint the page information
const QString page = tr("Page %1 of %2").arg(row * nbCol + col + 1).arg(nbCol * nbRow);
td.setPageSize(QSizeF(m_drawingAreaHeight - UnitConvertor(2, Unit::Cm, Unit::Px), m_drawingAreaWidth));
QFontMetrics const metrix = QFontMetrics(td.defaultFont());
int const maxWidth = metrix.horizontalAdvance(QString().fill('z', 50));
QString const clippedSheetName = metrix.elidedText(sheetName, Qt::ElideMiddle, maxWidth);
td.setHtml(QStringLiteral("<table width='100%' style='color:rgb(%1);'>"
"<tr>"
"<td align='center'>%2 - %3</td>"
"</tr>"
"</table>")
.arg(tileColorStr, page, clippedSheetName));
painter->save();
painter->rotate(-90);
painter->translate(
QPointF(-(m_drawingAreaHeight) + UnitConvertor(1, Unit::Cm, Unit::Px), m_drawingAreaWidth - tileStripeWidth));
td.drawContents(painter);
painter->restore();
}
//---------------------------------------------------------------------------------------------------------------------
void VPTileFactory::PaintWatermarkText(QPainter *painter, const QRectF &img, const VWatermarkData &watermarkData,
qreal xScale, qreal yScale)
{
SCASSERT(painter != nullptr)
painter->save();
painter->setOpacity(watermarkData.opacity / 100.);
QPen pen = painter->pen();
pen.setWidth(1);
pen.setColor(watermarkData.textColor);
pen.setStyle(Qt::SolidLine);
painter->setPen(pen);
painter->setBrush(watermarkData.textColor);
QTransform t;
t.translate(img.center().x(), img.center().y());
t.rotate(-watermarkData.textRotation);
t.translate(-img.center().x(), -img.center().y());
t.scale(xScale, yScale);
QPainterPath text;
text.addText(img.center(), watermarkData.font, watermarkData.text);
text = t.map(text);
QPointF const center = img.center() - text.boundingRect().center();
t = QTransform();
t.translate(center.x(), center.y());
text = t.map(text);
painter->drawPath(text);
painter->restore();
}
//---------------------------------------------------------------------------------------------------------------------
void VPTileFactory::PaintWatermarkImage(QPainter *painter, const QRectF &img, const VWatermarkData &watermarkData,
const QString &watermarkPath, bool folowColorScheme, qreal xScale, qreal yScale)
{
SCASSERT(painter != nullptr)
const qreal opacity = watermarkData.opacity / 100.;
auto BrokenImage = [&img, &watermarkData, watermarkPath, opacity, folowColorScheme]()
{
QString colorScheme = QStringLiteral("light");
if (folowColorScheme)
{
colorScheme =
(VTheme::ColorSheme() == VColorSheme::Light ? QStringLiteral("light") : QStringLiteral("dark"));
}
QPixmap watermark;
if (QString const imagePath =
QStringLiteral("puzzle=colorScheme%1+path%2+opacity%3_broken")
.arg(colorScheme, AbsoluteMPath(watermarkPath, watermarkData.path), QString::number(opacity));
not QPixmapCache::find(imagePath, &watermark))
{
QScopedPointer<QSvgRenderer> const svgRenderer(new QSvgRenderer());
QRect const imageRect(0, 0, qRound(img.width() / 4.), qRound(img.width() / 4.));
watermark = QPixmap(imageRect.size());
watermark.fill(Qt::transparent);
QPainter imagePainter(&watermark);
imagePainter.setOpacity(opacity);
svgRenderer->load(QStringLiteral("://puzzleicon/svg/%1/no_watermark_image.svg").arg(colorScheme));
svgRenderer->render(&imagePainter, imageRect);
QPixmapCache::insert(imagePath, watermark);
return watermark;
}
return watermark;
};
QString const imagePath = AbsoluteMPath(watermarkPath, watermarkData.path);
QFileInfo const f(imagePath);
QImageReader imageReader(imagePath);
QImage const watermarkImage = imageReader.read();
if (watermarkImage.isNull())
{
if (QPixmap const watermarkPixmap = BrokenImage();
watermarkPixmap.width() < img.width() && watermarkPixmap.height() < img.height())
{
QRect imagePosition(0, 0, watermarkPixmap.width(), watermarkPixmap.height());
imagePosition.translate(img.center().toPoint() - imagePosition.center());
painter->drawPixmap(imagePosition, watermarkPixmap);
}
else
{
painter->drawPixmap(img.toRect(), watermarkPixmap);
}
return;
}
qint64 const fileSize = watermarkImage.sizeInBytes();
qint64 const pixelSize = fileSize / watermarkImage.height() / watermarkImage.width();
QSize const scaledSize(qRound(watermarkImage.width() / xScale), qRound(watermarkImage.height() / yScale));
qint64 const scaledImageSize = pixelSize * scaledSize.width() * scaledSize.height() / 1024;
if (int const limit = QPixmapCache::cacheLimit(); scaledImageSize > limit && (xScale < 1 || yScale < 1))
{
QScopedPointer<QSvgRenderer> const svgRenderer(new QSvgRenderer());
painter->save();
painter->setOpacity(opacity);
painter->restore();
QString const grayscale = watermarkData.grayscale ? QStringLiteral("_grayscale") : QString();
svgRenderer->load(QStringLiteral("://puzzleicon/svg/watermark_placeholder%1.svg").arg(grayscale));
QRect imageRect(0, 0, qRound(watermarkImage.width() / xScale), qRound(watermarkImage.height() / yScale));
imageRect.translate(img.center().toPoint() - imageRect.center());
svgRenderer->render(painter, imageRect);
return;
}
QPixmap watermark;
if (f.suffix() == "png"_L1 || f.suffix() == "jpg"_L1 || f.suffix() == "jpeg"_L1 || f.suffix() == "bmp"_L1)
{
QString error;
watermark = WatermarkImageFromCache(watermarkData, watermarkPath, xScale, yScale, error);
if (watermark.isNull())
{
watermark = BrokenImage();
}
}
else
{
watermark = BrokenImage();
}
painter->save();
painter->setOpacity(watermarkData.opacity / 100.);
QRect imagePosition(0, 0, watermark.width(), watermark.height());
imagePosition.translate(img.center().toPoint() - imagePosition.center());
if (watermark.width() < img.width() && watermark.height() < img.height())
{
painter->drawPixmap(imagePosition, watermark);
}
else
{
QRect const croppedRect = imagePosition.intersected(img.toRect());
QPixmap const cropped = watermark.copy(croppedRect.translated(-imagePosition.x(), -imagePosition.y()));
painter->drawPixmap(croppedRect, cropped);
}
painter->restore();
}