QTC_EXPORT void
qtcX11ShadowInstallWithMargin(xcb_window_t win, const int margins[4])
{
QTC_RET_IF_FAIL(win);
if (qtcUnlikely(!margins)) {
qtcX11ShadowInstall(win);
return;
}
// In principle, I should check for _KDE_NET_WM_SHADOW in _NET_SUPPORTED.
// However, it's complicated and we will gain nothing.
xcb_atom_t atom = qtc_x11_kde_net_wm_shadow;
if (qtc_disp) {
unsigned long shadow_data[8 + 4];
memcpy(shadow_data, shadow_data_xlib, 12 * sizeof(unsigned long));
for (int i = 0;i < 4;i++) {
shadow_data[i + 8] -= margins[i];
}
XChangeProperty(qtc_disp, win, atom, XA_CARDINAL, 32,
PropModeReplace, (unsigned char*)shadow_data, 12);
} else {
uint32_t shadow_data[8 + 4];
memcpy(shadow_data, shadow_data_xcb, 12 * sizeof(uint32_t));
for (int i = 0;i < 4;i++) {
shadow_data[i + 8] -= margins[i];
}
qtcX11ChangeProperty(XCB_PROP_MODE_REPLACE, win, atom,
XCB_ATOM_CARDINAL, 32, 12, shadow_data);
qtcX11Flush();
}
}
bool
ShadowHelper::installX11Shadows(QWidget *widget)
{
if (WId wid = qtcGetQWidgetWid(widget)) {
qtcX11ShadowInstall(wid);
return true;
}
return false;
}
bool
ShadowHelper::installX11Shadows(QWidget *widget)
{
if (WId wid = qtcGetWid(widget)) {
if (widget->windowType() == Qt::ToolTip &&
widget->inherits("QBalloonTip")) {
bool atTop = true;
int margin = qtcGetBalloonMargin(widget, &atTop);
int margins[4] = {0, 0, 0, 0};
// KWin's shadows margin order is top, right, bottom, left..
margins[atTop ? 0 : 2] = margin;
qtcX11ShadowInstall(wid, margins);
} else {
qtcX11ShadowInstall(wid);
}
return true;
}
return false;
}
bool
ShadowHelper::installX11Shadows(QWidget *widget)
{
// DO NOT condition compile on QTC_ENABLE_X11.
// There's no direct linkage on X11 and the following code will just do
// nothing if X11 is not enabled (either at compile time or at run time).
QTC_RET_IF_FAIL(qtcX11Enabled(), false);
if (WId wid = qtcGetWid(widget)) {
if (widget->windowType() == Qt::ToolTip &&
widget->inherits("QBalloonTip")) {
bool atTop = true;
int margin = qtcGetBalloonMargin(widget, &atTop);
int margins[4] = {0, 0, 0, 0};
// KWin's shadows margin order is top, right, bottom, left..
margins[atTop ? 0 : 2] = margin;
qtcX11ShadowInstall(wid, margins);
} else {
qtcX11ShadowInstall(wid);
}
return true;
}
return false;
}