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Fix T58776, T58030: pressure sensitivity on Linux not working for some tablets.

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This commit is contained in:
Brecht Van Lommel
2018-12-05 13:58:38 +01:00
parent e7643ee6b4
commit c9344d6c5b
1 changed files with 14 additions and 0 deletions
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14
intern/ghost/intern/GHOST_SystemX11.cpp
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@@ -2269,6 +2269,8 @@ void GHOST_SystemX11::refreshXInputDevices()
if (m_xtablet.StylusDevice != NULL) {
/* Find how many pressure levels tablet has */
XAnyClassPtr ici = device_info[i].inputclassinfo;
bool found_valuator_class = false;
for (int j = 0; j < m_xtablet.StylusDevice->num_classes; ++j) {
if (ici->c_class == ValuatorClass) {
// printf("\t\tfound ValuatorClass\n");
@@ -2286,11 +2288,23 @@ void GHOST_SystemX11::refreshXInputDevices()
m_xtablet.YtiltLevels = 0;
}
found_valuator_class = true;
break;
}
ici = (XAnyClassPtr)(((char *)ici) + ici->length);
}
if (!found_valuator_class) {
/* In case our name matching detects a device that
* isn't actually a stylus. For example there can
* be "XPPEN Tablet" and "XPPEN Tablet Pen", but
* only the latter is a stylus. */
XCloseDevice(m_display, m_xtablet.StylusDevice);
m_xtablet.StylusDevice = NULL;
m_xtablet.StylusID = 0;
}
}
else {
m_xtablet.StylusID = 0;