KShare/screenshotutil.cpp
2017-07-09 21:04:21 +02:00

102 lines
3.3 KiB
C++

#include "screenshotutil.hpp"
#include <QApplication>
#include <QClipboard>
#include <QDebug>
#include <QPainter>
#include <QPixmap>
#include <QScreen>
#include <platformbackend.hpp>
QPixmap screenshotutil::fullscreen(bool cursor) {
QPixmap image;
QPainter painter;
QPoint smallestCoordinate = smallestScreenCoordinate();
// Hack for https://bugreports.qt.io/browse/QTBUG-58110
#ifdef Q_OS_LINUX
static QStringList qVer = QString(qVersion()).split('.');
if (qVer.at(0).toInt() == 5 && qVer.at(1).toInt() < 9) {
image = window(0);
painter.begin(&image);
} else {
#endif
int height = 0, width = 0;
int ox = smallestCoordinate.x() * -1, oy = smallestCoordinate.y() * -1;
for (QScreen *screen : QApplication::screens()) {
QRect geo = screen->geometry();
width = qMax(ox + geo.left() + geo.width(), width);
height = qMax(oy + geo.top() + geo.height(), height);
}
image = QPixmap(width, height);
image.fill(Qt::transparent);
width = 0;
painter.begin(&image);
painter.translate(ox, oy);
for (QScreen *screen : QApplication::screens()) {
QPixmap currentScreen = window(0, screen);
QRect geo = screen->geometry();
painter.drawPixmap(geo.left(), geo.top(), geo.width(), geo.height(), currentScreen);
width += screen->size().width();
}
#ifdef Q_OS_LINUX
}
#endif
#ifdef PLATFORM_CAPABILITY_CURSOR
if (cursor) {
auto cursorData = PlatformBackend::inst().getCursor();
painter.drawPixmap(QCursor::pos() - std::get<0>(cursorData), std::get<1>(cursorData));
}
#endif
painter.end();
return image;
}
QPixmap screenshotutil::window(WId wid, QScreen *w) {
return w->grabWindow(wid);
}
void screenshotutil::toClipboard(QString value) {
QApplication::clipboard()->setText(value);
}
QPixmap screenshotutil::fullscreenArea(bool cursor, qreal x, qreal y, qreal w, qreal h) {
return fullscreen(cursor).copy(x, y, w, h);
}
QPoint screenshotutil::smallestScreenCoordinate() {
QPoint smallestCoordinate;
for (QScreen *screen : QApplication::screens()) {
smallestCoordinate.rx() = qMin(smallestCoordinate.x(), screen->geometry().left());
smallestCoordinate.ry() = qMin(smallestCoordinate.y(), screen->geometry().top());
}
return smallestCoordinate;
}
QPixmap screenshotutil::renderText(QString toRender, int padding, QColor background, QColor pen, QFont font) {
QFontMetrics metric(font);
QStringList lines = toRender.replace("\r", "").split('\n');
QSize resultingSize(0, padding * 2);
int lineSpace = metric.leading();
for (QString line : lines) {
QRect br = metric.boundingRect(line);
resultingSize.rheight() += lineSpace + br.height();
resultingSize.rwidth() = qMax(br.width(), resultingSize.width());
}
resultingSize.rwidth() += padding * 2;
QPixmap renderred(resultingSize);
renderred.fill(background);
QPainter painter(&renderred);
painter.setPen(pen);
int y = padding;
for (QString line : lines) {
QRect br = metric.boundingRect(line);
painter.drawText(padding, y, br.width(), br.height(), 0, line);
y += lineSpace + br.height();
}
painter.end();
return renderred;
}