XcursorImages *XCursorTheme::xcLoadImages(const QString &image, int size) const
{
QByteArray cursorName = QFile::encodeName(image);
QByteArray themeName = QFile::encodeName(name());
return XcursorLibraryLoadImages(cursorName, themeName, size);
}
Cursor
XcursorLibraryLoadCursor (Display *dpy, const char *file)
{
int size = XcursorGetDefaultSize (dpy);
char *theme = XcursorGetTheme (dpy);
XcursorImages *images = XcursorLibraryLoadImages (file, theme, size);
Cursor cursor;
if (!file)
return 0;
if (!images)
{
int id = XcursorLibraryShape (file);
if (id >= 0)
return _XcursorCreateFontCursor (dpy, id);
else
return 0;
}
cursor = XcursorImagesLoadCursor (dpy, images);
XcursorImagesDestroy (images);
#if defined HAVE_XFIXES && XFIXES_MAJOR >= 2
XFixesSetCursorName (dpy, cursor, file);
#endif
return cursor;
}
XcursorImages *
XcursorShapeLoadImages (unsigned int shape, const char *theme, int size)
{
unsigned int id = shape >> 1;
if (id < NUM_STANDARD_NAMES)
return XcursorLibraryLoadImages (STANDARD_NAME (id), theme, size);
else
return NULL;
}
XcursorCursors *
XcursorLibraryLoadCursors (Display *dpy, const char *file)
{
int size = XcursorGetDefaultSize (dpy);
char *theme = XcursorGetTheme (dpy);
XcursorImages *images = XcursorLibraryLoadImages (file, theme, size);
XcursorCursors *cursors;
if (!file)
return NULL;
if (!images)
{
int id = XcursorLibraryShape (file);
if (id >= 0)
{
cursors = XcursorCursorsCreate (dpy, 1);
if (cursors)
{
cursors->cursors[0] = _XcursorCreateFontCursor (dpy, id);
if (cursors->cursors[0] == None)
{
XcursorCursorsDestroy (cursors);
cursors = NULL;
}
else
cursors->ncursor = 1;
}
}
else
cursors = NULL;
}
else
{
cursors = XcursorImagesLoadCursors (dpy, images);
XcursorImagesDestroy (images);
}
return cursors;
}
void PreviewCursor::load(const QString &name, const QString &theme)
{
Display *dpy = QPaintDevice::x11AppDisplay();
if(m_pict)
XRenderFreePicture(dpy, m_pict);
if(m_handle)
XFreeCursor(dpy, m_handle);
m_pict = 0;
m_handle = 0;
m_width = m_height = 0;
// Load the preview cursor image
XcursorImage *image = XcursorLibraryLoadImage(name.latin1(), theme.latin1(), previewSize);
// If the theme doesn't have this cursor, load the default cursor for now
if(!image)
image = XcursorLibraryLoadImage("left_ptr", theme.latin1(), previewSize);
// TODO The old classic X cursors
if(!image)
return;
// Auto-crop the image (some cursor themes use a fixed image size
// for all cursors, and doing this results in correctly centered images)
cropCursorImage(image);
m_pict = createPicture(image);
m_width = image->width;
m_height = image->height;
// Scale the image if its height is greater than 2x the requested size
if(m_height > previewSize * 2.0)
{
double factor = double(previewSize * 2.0 / m_height);
XTransform xform = {{{XDoubleToFixed(1.0), XDoubleToFixed(0), XDoubleToFixed(0)},
{XDoubleToFixed(0), XDoubleToFixed(1.0), XDoubleToFixed(0)},
{XDoubleToFixed(0), XDoubleToFixed(0), XDoubleToFixed(factor)}}};
XRenderSetPictureTransform(dpy, m_pict, &xform);
m_width = int(m_width * factor);
m_height = int(m_height * factor);
}
// We don't need this image anymore
XcursorImageDestroy(image);
// Load the actual cursor we will use
int size = XcursorGetDefaultSize(dpy);
XcursorImages *images = XcursorLibraryLoadImages(name.latin1(), theme.latin1(), size);
if(images)
{
m_handle = XcursorImagesLoadCursor(dpy, images);
XcursorImagesDestroy(images);
}
else
{
images = XcursorLibraryLoadImages("left_ptr", theme.latin1(), size);
m_handle = XcursorImagesLoadCursor(dpy, images);
XcursorImagesDestroy(images);
}
}
