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Merge pull request #164 from thefiddler/x11_scrollfix

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[X11] Fix legacy scrolling and absolute pointer motion
This commit is contained in:
thefiddler 2014-08-10 12:10:07 +02:00
parent 779ff311c2 ffa3df29eb
commit 680a5eef3c
4 changed files with 56 additions and 49 deletions
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6
Source/OpenTK/Platform/X11/Bindings/XI.cs
View file

@ -136,4 +136,10 @@ namespace OpenTK.Platform.X11
SlaveKeyboard = 4,
FloatingSlave = 5,
}
enum XIMode
{
Relative = 0,
Absolute = 1
}
}

3
Source/OpenTK/Platform/X11/Functions.cs
View file

@ -176,6 +176,9 @@ namespace OpenTK.Platform.X11
[DllImport("libX11", EntryPoint = "XInternAtoms")]
public extern static int XInternAtoms(IntPtr display, string[] atom_names, int atom_count, bool only_if_exists, IntPtr[] atoms);
[DllImport("libX11", EntryPoint = "XGetAtomName")]
public extern static IntPtr XGetAtomName(IntPtr display, IntPtr atom);
[DllImport("libX11", EntryPoint = "XSetWMProtocols")]
public extern static int XSetWMProtocols(IntPtr display, IntPtr window, IntPtr[] protocols, int count);

2
Source/OpenTK/Platform/X11/Structs.cs
View file

@ -1732,7 +1732,7 @@ namespace OpenTK.Platform.X11
public double max;
public double value;
public int resolution;
public int mode;
public XIMode mode;
}
struct XIDeviceEvent

94
Source/OpenTK/Platform/X11/XI2MouseKeyboard.cs
View file

@ -60,21 +60,6 @@ namespace OpenTK.Platform.X11
public string Name;
}
// Atoms
//static readonly IntPtr ButtonLeft;
//static readonly IntPtr ButtonMiddle;
////static readonly IntPtr ButtonRight;
//static readonly IntPtr ButtonWheelUp;
//static readonly IntPtr ButtonWheelDown;
//static readonly IntPtr ButtonWheelLeft;
//static readonly IntPtr ButtonWheelRight;
static readonly IntPtr RelX;
static readonly IntPtr RelY;
//static readonly IntPtr RelHorizScroll;
//static readonly IntPtr RelVertScroll;
//static readonly IntPtr RelHorizWheel;
//static readonly IntPtr RelVertWheel;
long cursor_x, cursor_y; // For GetCursorState()
List<XIMouse> devices = new List<XIMouse>(); // list of connected mice
Dictionary<int, int> rawids = new Dictionary<int, int>(); // maps hardware device ids to XIMouse ids
@ -93,31 +78,6 @@ namespace OpenTK.Platform.X11
{
using (new XLock(API.DefaultDisplay))
{
// Mouse
//ButtonLeft = Functions.XInternAtom(API.DefaultDisplay, "Button Left", false);
//ButtonMiddle = Functions.XInternAtom(API.DefaultDisplay, "Button Middle", false);
//ButtonRight = Functions.XInternAtom(API.DefaultDisplay, "Button Right", false);
//ButtonWheelUp = Functions.XInternAtom(API.DefaultDisplay, "Button Wheel Up", false);
//ButtonWheelDown = Functions.XInternAtom(API.DefaultDisplay, "Button Wheel Down", false);
//ButtonWheelLeft = Functions.XInternAtom(API.DefaultDisplay, "Button Horiz Wheel Left", false);
//ButtonWheelRight = Functions.XInternAtom(API.DefaultDisplay, "Button Horiz Wheel Right", false);
RelX = Functions.XInternAtom(API.DefaultDisplay, "Rel X", false);
RelY = Functions.XInternAtom(API.DefaultDisplay, "Rel Y", false);
//RelHorizWheel = Functions.XInternAtom(API.DefaultDisplay, "Rel Horiz Wheel", false);
//RelVertWheel = Functions.XInternAtom(API.DefaultDisplay, "Rel Vert Wheel", false);
//RelHorizScroll = Functions.XInternAtom(API.DefaultDisplay, "Rel Horiz Scroll", false);
//RelVertScroll = Functions.XInternAtom(API.DefaultDisplay, "Rel Vert Scroll", false);
// Multitouch
//TouchX = Functions.XInternAtom(API.DefaultDisplay, "Abs MT Position X", false);
//TouchY = Functions.XInternAtom(API.DefaultDisplay, "Abs MT Position Y", false);
//TouchMajor = Functions.XInternAtom(API.DefaultDisplay, "Abs MT Touch Major", false);
//TouchMinor = Functions.XInternAtom(API.DefaultDisplay, "Abs MT Touch Minor", false);
//TouchPressure = Functions.XInternAtom(API.DefaultDisplay, "Abs MT Pressure", false);
//TouchId = Functions.XInternAtom(API.DefaultDisplay, "Abs MT Tracking ID", false);
//TouchMaxContacts = Functions.XInternAtom(API.DefaultDisplay, "Max Contacts", false);
// Custom
ExitAtom = Functions.XInternAtom(API.DefaultDisplay, "Exit Input Thread Message", false);
}
}
@ -391,17 +351,39 @@ namespace OpenTK.Platform.X11
case XIClassType.Valuator:
{
// We use relative x/y valuators for mouse movement.
// Iff these are not available, we fall back to
// absolute x/y valuators.
XIValuatorClassInfo* valuator = (XIValuatorClassInfo*)class_info;
if (valuator->label == RelX)
if (valuator->label == XI.RelativeX)
{
Debug.WriteLine("\tRelative X movement");
d.MotionX = *valuator;
}
else if (valuator->label == RelY)
else if (valuator->label == XI.RelativeY)
{
Debug.WriteLine("\tRelative Y movement");
d.MotionY = *valuator;
}
else if (valuator->label == XI.AbsoluteX)
{
Debug.WriteLine("\tAbsolute X movement");
if (d.MotionX.number == -1)
d.MotionX = *valuator;
}
else if (valuator->label == XI.AbsoluteY)
{
Debug.WriteLine("\tAbsolute X movement");
if (d.MotionY.number == -1)
d.MotionY = *valuator;
}
else
{
IntPtr label = Functions.XGetAtomName(window.Display, valuator->label);
Debug.Print("\tUnknown valuator {0}",
Marshal.PtrToStringAnsi(label));
Functions.XFree(label);
}
}
break;
}
@ -508,6 +490,8 @@ namespace OpenTK.Platform.X11
float dx, dy;
MouseButton button = X11KeyMap.TranslateButton(raw.detail, out dx, out dy);
mouse.State[button] = raw.evtype == XIEventType.RawButtonPress;
if (mouse.ScrollX.number == -1 && mouse.ScrollY.number == -1)
mouse.State.SetScrollRelative(dx, dy);
}
break;
@ -555,13 +539,27 @@ namespace OpenTK.Platform.X11
{
// Note: we use the raw values here, without pointer
// ballistics and any other modification.
double x = ReadRawValue(ref raw, d.MotionX.number);
double y = ReadRawValue(ref raw, d.MotionY.number);
double h = ReadRawValue(ref raw, d.ScrollX.number) / d.ScrollX.increment;
double v = ReadRawValue(ref raw, d.ScrollY.number) / d.ScrollY.increment;
double x = 0;
double y = 0;
double h = 0;
double v = 0;
if (d.MotionX.number != -1)
x = ReadRawValue(ref raw, d.MotionX.number);
if (d.MotionY.number != -1)
y = ReadRawValue(ref raw, d.MotionY.number);
if (d.ScrollX.number != -1)
h = ReadRawValue(ref raw, d.ScrollX.number) / d.ScrollX.increment;
if (d.ScrollY.number != -1)
v = ReadRawValue(ref raw, d.ScrollY.number) / d.ScrollY.increment;
d.State.X += (int)Math.Round(x);
d.State.Y += (int)Math.Round(y);
if (d.MotionX.mode == XIMode.Relative)
d.State.X += (int)Math.Round(x);
else
d.State.X = (int)Math.Round(x);
if (d.MotionY.mode == XIMode.Relative)
d.State.Y += (int)Math.Round(y);
else
d.State.Y = (int)Math.Round(y);
// Note: OpenTK follows the windows scrolling convention where
// (+h, +v) = (right, up). XI2 uses (+h, +v) = (right, down)