Katana_mirror/kde-workspace
1
0
Fork 0
mirror of https://bitbucket.org/smil3y/kde-workspace.git synced 2025-02-24 02:42:50 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

plasma: generalize folderview scroll backbuffer

Browse source 
Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
This commit is contained in:
Ivailo Monev 2022-11-07 18:34:25 +02:00
parent 5c32f8c9e1
commit c6fb7dcf90
1 changed files with 1 additions and 46 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

47
plasma/applets/folderview/abstractitemview.cpp
View file

@ -36,12 +36,6 @@
#include <limits.h>
#ifdef Q_WS_X11
# include <qx11info_x11.h>
# include <X11/Xlib.h>
#endif
static const int sSmoothScrollTime = 140;
static const int sSmoothScrollTick = 14;
@ -189,38 +183,7 @@ QRect AbstractItemView::scrollBackBuffer()
return visibleArea();
}
int sy, dy, h;
QRect dirty;
if (delta < 0) {
dy = 0;
sy = -delta;
h = m_pixmap.height() - sy;
dirty = QRect(0, m_pixmap.height() - sy, m_pixmap.width(), sy);
} else {
dy = delta;
sy = 0;
h = m_pixmap.height() - dy;
dirty = QRect(0, 0, m_pixmap.width(), dy);
}
#if defined(Q_WS_X11)
const QPaintEngine::Type type = m_pixmap.paintEngine()->type();
if (type == QPaintEngine::X11) {
Display *dpy = QX11Info::display();
GC gc = XCreateGC(dpy, m_pixmap.handle(), 0, 0);
XCopyArea(dpy, m_pixmap.handle(), m_pixmap.handle(), gc, 0, sy, m_pixmap.width(), h, 0, dy);
XFreeGC(dpy, gc);
} else if (type == QPaintEngine::Raster) {
// Hack to prevent the image from detaching
const QImage image = m_pixmap.toImage();
const uchar *src = image.scanLine(sy);
uchar *dst = const_cast<uchar*>(image.scanLine(dy));
memmove((void*)dst, (const void*)src, h * image.bytesPerLine());
} else
#endif
{
dirty = m_pixmap.rect();
}
QRect dirty = m_pixmap.rect();
return mapToViewport(dirty.translated(contentsRect().topLeft().toPoint())).toAlignedRect();
}
@ -235,14 +198,6 @@ void AbstractItemView::prepareBackBuffer()
pixmap.fill(Qt::transparent);
if (!m_pixmap.isNull()) {
// Static content optimization
#ifdef Q_WS_X11
if (m_pixmap.paintEngine()->type() == QPaintEngine::X11) {
GC gc = XCreateGC(QX11Info::display(), pixmap.handle(), 0, NULL);
XCopyArea(QX11Info::display(), m_pixmap.handle(), pixmap.handle(), gc, 0, 0,
m_pixmap.width(), m_pixmap.height(), 0, 0);
XFreeGC(QX11Info::display(), gc);
} else
#endif
{
QPainter p(&pixmap);
p.setCompositionMode(QPainter::CompositionMode_Source);