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Applied patch from Tom Chadwick to synthesize PageUp/PageDown on

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X servers that don't support the mouse wheel.
This commit is contained in:
crs
2004-12-30 11:54:23 +00:00
parent 3ae1b916ea
commit 1d0436b31c
2 changed files with 19 additions and 0 deletions
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15
lib/platform/CXWindowsScreen.cpp
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@@ -31,6 +31,7 @@
#else
# include <X11/X.h>
# include <X11/Xutil.h>
# define XK_MISCELLANY
# define XK_XKB_KEYS
# include <X11/keysymdef.h>
# if HAVE_X11_EXTENSIONS_XTEST_H
@@ -583,6 +584,20 @@ CXWindowsScreen::fakeMouseWheel(SInt32 delta) const
const unsigned int xButton = mapButtonToX(static_cast<ButtonID>(
(delta >= 0) ? -1 : -2));
if (xButton == 0) {
// If we get here, then the XServer does not support the scroll
// wheel buttons, so send PageUp/PageDown keystrokes instead.
// Patch by Tom Chadwick.
KeyCode keycode = 0;
if (delta >= 0) {
keycode = XKeysymToKeycode(m_display, XK_Page_Up);
}
else {
keycode = XKeysymToKeycode(m_display, XK_Page_Down);
}
if (keycode != 0) {
XTestFakeKeyEvent(m_display, keycode, True, CurrentTime);
XTestFakeKeyEvent(m_display, keycode, False, CurrentTime);
}
return;
}