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x11/skia: Add support for mouse wheel

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This commit is contained in:
David Capello 2017-04-21 14:16:34 -03:00
parent 272f24ed3a
commit d08674704d
1 changed files with 46 additions and 36 deletions
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82
src/she/x11/window.cpp
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@ -28,7 +28,7 @@ Atom wmDeleteMessage = 0;
// into our own user data pointer (X11Window instance) is using a map.
std::map<::Window, X11Window*> g_activeWindows;
KeyModifiers get_modifiers_from_xevent(int state)
KeyModifiers get_modifiers_from_x(int state)
{
int modifiers = kKeyNoneModifier;
if (state & ShiftMask) modifiers |= kKeyShiftModifier;
@ -37,6 +37,24 @@ KeyModifiers get_modifiers_from_xevent(int state)
return (KeyModifiers)modifiers;
}
bool is_mouse_wheel_button(int button)
{
return (button == Button4 || button == Button5);
}
Event::MouseButton get_mouse_button_from_x(int button)
{
switch (button) {
case Button1: TRACE("LeftButton\n"); return Event::LeftButton;
case Button2: TRACE("MiddleButton\n"); return Event::MiddleButton;
case Button3: TRACE("RightButton\n"); return Event::RightButton;
case 8: TRACE("X1Button\n"); return Event::X1Button;
case 9: TRACE("X2Button\n"); return Event::X2Button;
}
TRACE("Unknown Button %d\n", button);
return Event::NoneButton;
}
} // anonymous namespace
// static
@ -189,35 +207,22 @@ void X11Window::processX11Event(XEvent& event)
break;
}
case ButtonPress: {
Event ev;
ev.setType(Event::MouseDown);
ev.setModifiers(get_modifiers_from_xevent(event.xbutton.state));
ev.setPosition(gfx::Point(event.xbutton.x / m_scale,
event.xbutton.y / m_scale));
ev.setButton(
event.xbutton.button == 1 ? Event::LeftButton:
event.xbutton.button == 2 ? Event::MiddleButton:
event.xbutton.button == 3 ? Event::RightButton:
event.xbutton.button == 4 ? Event::X1Button:
event.xbutton.button == 5 ? Event::X2Button: Event::NoneButton);
queueEvent(ev);
break;
}
case ButtonPress:
case ButtonRelease: {
Event ev;
ev.setType(Event::MouseUp);
ev.setModifiers(get_modifiers_from_xevent(event.xbutton.state));
if (is_mouse_wheel_button(event.xbutton.button)) {
ev.setType(Event::MouseWheel);
ev.setWheelDelta(gfx::Point(0, event.xbutton.button == Button4 ? -1: 1));
}
else {
ev.setType(event.type == ButtonPress? Event::MouseDown:
Event::MouseUp);
ev.setButton(get_mouse_button_from_x(event.xbutton.button));
}
ev.setModifiers(get_modifiers_from_x(event.xbutton.state));
ev.setPosition(gfx::Point(event.xbutton.x / m_scale,
event.xbutton.y / m_scale));
ev.setButton(
event.xbutton.button == 1 ? Event::LeftButton:
event.xbutton.button == 2 ? Event::MiddleButton:
event.xbutton.button == 3 ? Event::RightButton:
event.xbutton.button == 4 ? Event::X1Button:
event.xbutton.button == 5 ? Event::X2Button: Event::NoneButton);
queueEvent(ev);
break;
@ -226,7 +231,7 @@ void X11Window::processX11Event(XEvent& event)
case MotionNotify: {
Event ev;
ev.setType(Event::MouseMove);
ev.setModifiers(get_modifiers_from_xevent(event.xmotion.state));
ev.setModifiers(get_modifiers_from_x(event.xmotion.state));
ev.setPosition(gfx::Point(event.xmotion.x / m_scale,
event.xmotion.y / m_scale));
queueEvent(ev);
@ -234,16 +239,21 @@ void X11Window::processX11Event(XEvent& event)
}
case EnterNotify:
case LeaveNotify: {
Event ev;
ev.setType(event.type == EnterNotify ? Event::MouseEnter:
Event::MouseLeave);
ev.setModifiers(get_modifiers_from_xevent(event.xcrossing.state));
ev.setPosition(gfx::Point(event.xcrossing.x / m_scale,
event.xcrossing.y / m_scale));
queueEvent(ev);
case LeaveNotify:
// "mode" can be NotifyGrab or NotifyUngrab when middle mouse
// button is pressed/released. We must not generated
// MouseEnter/Leave events on those cases, only on NotifyNormal
// (when mouse leaves/enter the X11 window).
if (event.xcrossing.mode == NotifyNormal) {
Event ev;
ev.setType(event.type == EnterNotify ? Event::MouseEnter:
Event::MouseLeave);
ev.setModifiers(get_modifiers_from_x(event.xcrossing.state));
ev.setPosition(gfx::Point(event.xcrossing.x / m_scale,
event.xcrossing.y / m_scale));
queueEvent(ev);
}
break;
}
case ClientMessage:
// When the close button is pressed