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Merge pull request #120 from thefiddler/xcursorfix

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[X11] Improve mouse input
This commit is contained in:
thefiddler 2014-05-15 00:43:38 +02:00
commit 687fc90c95
7 changed files with 147 additions and 122 deletions
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40
Source/OpenTK/Input/MouseScrollWheel.cs → Source/OpenTK/Input/MouseScroll.cs
View file

@ -34,7 +34,7 @@ namespace OpenTK.Input
/// <summary>
/// Represents the state of a mouse wheel.
/// </summary>
public struct MouseScrollWheel : IEquatable<MouseScrollWheel>
public struct MouseScroll : IEquatable<MouseScroll>
{
#region Public Members
@ -52,31 +52,31 @@ namespace OpenTK.Input
/// <value>The y.</value>
public float Y { get; internal set; }
/// <param name="left">A <see cref="MouseScrollWheel"/> instance to test for equality.</param>
/// <param name="right">A <see cref="MouseScrollWheel"/> instance to test for equality.</param>
public static bool operator ==(MouseScrollWheel left, MouseScrollWheel right)
/// <param name="left">A <see cref="MouseScroll"/> instance to test for equality.</param>
/// <param name="right">A <see cref="MouseScroll"/> instance to test for equality.</param>
public static bool operator ==(MouseScroll left, MouseScroll right)
{
return left.Equals(right);
}
/// <param name="left">A <see cref="MouseScrollWheel"/> instance to test for inequality.</param>
/// <param name="right">A <see cref="MouseScrollWheel"/> instance to test for inequality.</param>
public static bool operator !=(MouseScrollWheel left, MouseScrollWheel right)
/// <param name="left">A <see cref="MouseScroll"/> instance to test for inequality.</param>
/// <param name="right">A <see cref="MouseScroll"/> instance to test for inequality.</param>
public static bool operator !=(MouseScroll left, MouseScroll right)
{
return !left.Equals(right);
}
/// <summary>
/// Returns a <see cref="System.String"/> that represents the current <see cref="OpenTK.Input.MouseScrollWheel"/>.
/// Returns a <see cref="System.String"/> that represents the current <see cref="OpenTK.Input.MouseScroll"/>.
/// </summary>
/// <returns>A <see cref="System.String"/> that represents the current <see cref="OpenTK.Input.MouseScrollWheel"/>.</returns>
/// <returns>A <see cref="System.String"/> that represents the current <see cref="OpenTK.Input.MouseScroll"/>.</returns>
public override string ToString()
{
return string.Format("[X={0:0.00}, Y={1:0.00}]", X, Y);
}
/// <summary>
/// Serves as a hash function for a <see cref="OpenTK.Input.MouseScrollWheel"/> object.
/// Serves as a hash function for a <see cref="OpenTK.Input.MouseScroll"/> object.
/// </summary>
/// <returns>A hash code for this instance that is suitable for use in hashing algorithms and data structures such as a
/// hash table.</returns>
@ -86,16 +86,16 @@ namespace OpenTK.Input
}
/// <summary>
/// Determines whether the specified <see cref="System.Object"/> is equal to the current <see cref="OpenTK.Input.MouseScrollWheel"/>.
/// Determines whether the specified <see cref="System.Object"/> is equal to the current <see cref="OpenTK.Input.MouseScroll"/>.
/// </summary>
/// <param name="obj">The <see cref="System.Object"/> to compare with the current <see cref="OpenTK.Input.MouseScrollWheel"/>.</param>
/// <param name="obj">The <see cref="System.Object"/> to compare with the current <see cref="OpenTK.Input.MouseScroll"/>.</param>
/// <returns><c>true</c> if the specified <see cref="System.Object"/> is equal to the current
/// <see cref="OpenTK.Input.MouseScrollWheel"/>; otherwise, <c>false</c>.</returns>
/// <see cref="OpenTK.Input.MouseScroll"/>; otherwise, <c>false</c>.</returns>
public override bool Equals(object obj)
{
return
obj is MouseScrollWheel &&
Equals((MouseScrollWheel)obj);
obj is MouseScroll &&
Equals((MouseScroll)obj);
}
#endregion
@ -103,12 +103,12 @@ namespace OpenTK.Input
#region IEquatable Members
/// <summary>
/// Determines whether the specified <see cref="OpenTK.Input.MouseScrollWheel"/> is equal to the current <see cref="OpenTK.Input.MouseScrollWheel"/>.
/// Determines whether the specified <see cref="OpenTK.Input.MouseScroll"/> is equal to the current <see cref="OpenTK.Input.MouseScroll"/>.
/// </summary>
/// <param name="other">The <see cref="OpenTK.Input.MouseScrollWheel"/> to compare with the current <see cref="OpenTK.Input.MouseScrollWheel"/>.</param>
/// <returns><c>true</c> if the specified <see cref="OpenTK.Input.MouseScrollWheel"/> is equal to the current
/// <see cref="OpenTK.Input.MouseScrollWheel"/>; otherwise, <c>false</c>.</returns>
public bool Equals(MouseScrollWheel other)
/// <param name="other">The <see cref="OpenTK.Input.MouseScroll"/> to compare with the current <see cref="OpenTK.Input.MouseScroll"/>.</param>
/// <returns><c>true</c> if the specified <see cref="OpenTK.Input.MouseScroll"/> is equal to the current
/// <see cref="OpenTK.Input.MouseScroll"/>; otherwise, <c>false</c>.</returns>
public bool Equals(MouseScroll other)
{
return X == other.X && Y == other.Y;
}

4
Source/OpenTK/Input/MouseState.cs
View file

@ -39,7 +39,7 @@ namespace OpenTK.Input
#region Fields
int x, y;
MouseScrollWheel scroll;
MouseScroll scroll;
ushort buttons;
bool is_connected;
@ -104,7 +104,7 @@ namespace OpenTK.Input
/// Gets a <see cref="OpenTK.Input.MouseScrollWheel"/> instance,
/// representing the current state of the mouse scroll wheel.
/// </summary>
public MouseScrollWheel Scroll
public MouseScroll Scroll
{
get { return scroll; }
}

2
Source/OpenTK/OpenTK.csproj
View file

@ -790,7 +790,6 @@
<Compile Include="WindowIcon.cs" />
<Compile Include="Platform\MacOS\Cocoa\NSBitmapFormat.cs" />
<Compile Include="Platform\NativeWindowBase.cs" />
<Compile Include="Input\MouseScrollWheel.cs" />
<Compile Include="Input\MouseEventArgs.cs" />
<Compile Include="Platform\MacOS\Quartz\EventServices.cs" />
<Compile Include="Platform\MacOS\Quartz\DisplayServices.cs">
@ -799,6 +798,7 @@
<Compile Include="Platform\MacOS\Quartz\CoreFoundation.cs">
<SubType>Code</SubType>
</Compile>
<Compile Include="Input\MouseScroll.cs" />
</ItemGroup>
<Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
<PropertyGroup>

4
Source/OpenTK/Platform/NativeWindowBase.cs
View file

@ -232,6 +232,8 @@ namespace OpenTK.Platform
MouseState[button] = true;
var e = MouseDownArgs;
e.Button = button;
e.IsPressed = true;
e.Mouse = MouseState;
MouseDown(this, e);
@ -242,6 +244,8 @@ namespace OpenTK.Platform
MouseState[button] = false;
var e = MouseUpArgs;
e.Button = button;
e.IsPressed = false;
e.Mouse = MouseState;
MouseUp(this, e);

116
Source/OpenTK/Platform/X11/X11GLNative.cs
View file

@ -96,6 +96,8 @@ namespace OpenTK.Platform.X11
static readonly IntPtr _atom_add = (IntPtr)1;
static readonly IntPtr _atom_toggle = (IntPtr)2;
// Used by OpenTK to detect mouse warp events
Rectangle bounds, client_rectangle;
int border_left, border_right, border_top, border_bottom;
Icon icon;
@ -121,7 +123,6 @@ namespace OpenTK.Platform.X11
MouseCursor cursor = MouseCursor.Default;
IntPtr cursorHandle;
bool cursor_visible = true;
int mouse_rel_x, mouse_rel_y;
// Keyboard input
readonly byte[] ascii = new byte[16];
@ -129,10 +130,9 @@ namespace OpenTK.Platform.X11
readonly IntPtr EmptyCursor;
public static bool MouseWarpActive = false;
readonly bool xi2_supported;
readonly int xi2_opcode;
readonly int xi2_version;
#endregion
@ -244,6 +244,7 @@ namespace OpenTK.Platform.X11
if (xi2_supported)
{
xi2_opcode = XI2Mouse.XIOpCode;
xi2_version = XI2Mouse.XIVersion;
}
exists = true;
@ -905,63 +906,43 @@ namespace OpenTK.Platform.X11
case XEventName.MotionNotify:
{
// Try to detect and ignore events from XWarpPointer, below.
// This heuristic will fail if the user actually moves the pointer
// to the dead center of the window. Fortunately, this situation
// is very very uncommon. Todo: Can this be remedied?
int x = e.MotionEvent.x;
int y = e.MotionEvent.y;
// TODO: Have offset as a stored field, only update it when the window moves
// The middle point cannot be the average of the Bounds.left/right/top/bottom,
// because these fields take into account window decoration (borders, etc),
// which we do not want to account for.
Point offset = this.PointToClient(Point.Empty);
int middle_x = Width/2-offset.X;
int middle_y = Height/2-offset.Y;
Point screen_xy = PointToScreen(new Point(x, y));
if (!CursorVisible && MouseWarpActive &&
screen_xy.X == middle_x && screen_xy.Y == middle_y)
{
MouseWarpActive = false;
mouse_rel_x = x;
mouse_rel_y = y;
}
else if (!CursorVisible)
{
OnMouseMove(
MathHelper.Clamp(MouseState.X + x - mouse_rel_x, 0, Width),
MathHelper.Clamp(MouseState.Y + y - mouse_rel_y, 0, Height));
mouse_rel_x = x;
mouse_rel_y = y;
// Warp cursor to center of window.
MouseWarpActive = true;
Mouse.SetPosition(middle_x, middle_y);
}
else
if (x != 0 || y != 0)
{
OnMouseMove(
MathHelper.Clamp(x, 0, Width),
MathHelper.Clamp(y, 0, Height));
mouse_rel_x = x;
mouse_rel_y = y;
}
break;
}
case XEventName.ButtonPress:
{
int dx, dy;
float dx, dy;
MouseButton button = X11KeyMap.TranslateButton(e.ButtonEvent.button, out dx, out dy);
if (button != MouseButton.LastButton)
{
OnMouseDown(button);
}
else if (dx != 0 || dy != 0)
if (xi2_version >= 210)
{
// High resolution scroll events supported.
// This code is implemented in XI2Mouse.GetCursorState().
// Instead of reimplementing this functionality, just
// use the values from there.
MouseState state = Mouse.GetCursorState();
dx = state.Scroll.X - MouseState.Scroll.X;
dy = state.Scroll.Y - MouseState.Scroll.Y;
}
if (dx != 0 || dy != 0)
{
// High resolution scroll events not supported
// fallback to the old Button4-7 scroll buttons
OnMouseWheel(dx, dy);
}
}
@ -969,9 +950,8 @@ namespace OpenTK.Platform.X11
case XEventName.ButtonRelease:
{
int dx, dy;
float dx, dy;
MouseButton button = X11KeyMap.TranslateButton(e.ButtonEvent.button, out dx, out dy);
if (button != MouseButton.LastButton)
{
OnMouseUp(button);
@ -985,6 +965,11 @@ namespace OpenTK.Platform.X11
has_focus = true;
if (has_focus != previous_focus)
OnFocusedChanged(EventArgs.Empty);
if (Focused && !CursorVisible)
{
GrabMouse();
}
}
break;
@ -1000,6 +985,12 @@ namespace OpenTK.Platform.X11
case XEventName.LeaveNotify:
if (CursorVisible)
{
int x = MathHelper.Clamp(e.CrossingEvent.x, 0, Width);
int y = MathHelper.Clamp(e.CrossingEvent.y, 0, Height);
if (x != MouseState.X || y != MouseState.Y)
{
OnMouseMove(x, y);
}
OnMouseLeave(EventArgs.Empty);
}
break;
@ -1441,11 +1432,18 @@ namespace OpenTK.Platform.X11
{
unsafe
{
if (value == cursor)
return;
using (new XLock(window.Display))
{
if (value == MouseCursor.Default)
{
Functions.XUndefineCursor(window.Display, window.Handle);
cursorHandle = IntPtr.Zero;
}
else if (value == MouseCursor.Empty)
{
cursorHandle = EmptyCursor;
}
else
{
@ -1457,10 +1455,17 @@ namespace OpenTK.Platform.X11
xcursorimage->pixels = (uint*)pixels;
xcursorimage->delay = 0;
cursorHandle = Functions.XcursorImageLoadCursor(window.Display, xcursorimage);
Functions.XDefineCursor(window.Display, window.Handle, cursorHandle);
Functions.XcursorImageDestroy(xcursorimage);
}
}
// If the cursor is visible set it now.
// Otherwise, it will be set in CursorVisible = true.
if (CursorVisible)
{
Functions.XDefineCursor(window.Display, window.Handle, cursorHandle);
}
cursor = value;
}
}
@ -1480,6 +1485,13 @@ namespace OpenTK.Platform.X11
{
using (new XLock(window.Display))
{
UngrabMouse();
Point p = PointToScreen(new Point(MouseState.X, MouseState.Y));
Mouse.SetPosition(p.X, p.Y);
// Note: if cursorHandle = IntPtr.Zero, this restores the default cursor
// (equivalent to calling XUndefineCursor)
Functions.XDefineCursor(window.Display, window.Handle, cursorHandle);
cursor_visible = true;
}
@ -1488,13 +1500,27 @@ namespace OpenTK.Platform.X11
{
using (new XLock(window.Display))
{
Functions.XDefineCursor(window.Display, window.Handle, EmptyCursor);
GrabMouse();
cursor_visible = false;
}
}
}
}
void GrabMouse()
{
Functions.XGrabPointer(window.Display, window.Handle, false,
EventMask.PointerMotionMask | EventMask.ButtonPressMask |
EventMask.ButtonReleaseMask,
GrabMode.GrabModeAsync, GrabMode.GrabModeAsync,
window.Handle, EmptyCursor, IntPtr.Zero);
}
void UngrabMouse()
{
Functions.XUngrabPointer(window.Display, IntPtr.Zero);
}
#endregion
#endregion

2
Source/OpenTK/Platform/X11/X11KeyMap.cs
View file

@ -388,7 +388,7 @@ namespace OpenTK.Platform.X11
return key != Key.Unknown;
}
internal static MouseButton TranslateButton(int button, out int wheelx, out int wheely)
internal static MouseButton TranslateButton(int button, out float wheelx, out float wheely)
{
wheelx = 0;
wheely = 0;

67
Source/OpenTK/Platform/X11/XI2Mouse.cs
View file

@ -34,8 +34,6 @@ using OpenTK.Input;
namespace OpenTK.Platform.X11
{
// Todo: multi-mouse support. Right now we aggregate all data into a single mouse device.
// This should be easy: just read the device id and route the data to the correct device.
sealed class XI2Mouse : IMouseDriver2, IDisposable
{
const XEventName ExitEvent = XEventName.LASTEvent + 1;
@ -73,20 +71,11 @@ namespace OpenTK.Platform.X11
internal readonly X11WindowInfo window;
internal static int XIOpCode { get; private set; }
internal static int XIVersion { get; private set; }
static readonly Functions.EventPredicate PredicateImpl = IsEventValid;
readonly IntPtr Predicate = Marshal.GetFunctionPointerForDelegate(PredicateImpl);
// Store information on a mouse warp event, so it can be ignored.
struct MouseWarp : IEquatable<MouseWarp>
{
public MouseWarp(double x, double y) { X = x; Y = y; }
double X, Y;
public bool Equals(MouseWarp warp) { return X == warp.X && Y == warp.Y; }
}
MouseWarp? mouse_warp_event;
int mouse_warp_event_count;
static XI2Mouse()
{
using (new XLock(API.DefaultDisplay))
@ -138,6 +127,7 @@ namespace OpenTK.Platform.X11
XIEventMasks.RawButtonPressMask |
XIEventMasks.RawButtonReleaseMask |
XIEventMasks.RawMotionMask |
XIEventMasks.MotionMask |
XIEventMasks.DeviceChangedMask |
(XIEventMasks)(1 << (int)ExitEvent)))
{
@ -154,6 +144,8 @@ namespace OpenTK.Platform.X11
// Checks whether XInput2 is supported on the specified display.
// If a display is not specified, the default display is used.
internal static bool IsSupported(IntPtr display)
{
try
{
if (display == IntPtr.Zero)
{
@ -172,12 +164,19 @@ namespace OpenTK.Platform.X11
{
if (XI.QueryVersion(display, ref major, ref minor) == ErrorCodes.Success)
{
XIVersion = major * 100 + minor * 10;
return true;
}
minor--;
}
}
}
}
catch (DllNotFoundException e)
{
Debug.Print(e.ToString());
Debug.Print("XInput2 extension not supported. Mouse support will suffer.");
}
return false;
}
@ -303,12 +302,8 @@ namespace OpenTK.Platform.X11
{
Functions.XWarpPointer(API.DefaultDisplay,
IntPtr.Zero, window.RootWindow, 0, 0, 0, 0, (int)x, (int)y);
// Mark the expected warp-event so it can be ignored.
if (mouse_warp_event == null)
mouse_warp_event_count = 0;
mouse_warp_event_count++;
mouse_warp_event = new MouseWarp((int)x, (int)y);
Interlocked.Exchange(ref cursor_x, (long)x);
Interlocked.Exchange(ref cursor_y, (long)y);
}
}
@ -342,6 +337,10 @@ namespace OpenTK.Platform.X11
{
switch ((XIEventType)cookie.evtype)
{
case XIEventType.Motion:
// Nothing to do
break;
case XIEventType.RawMotion:
case XIEventType.RawButtonPress:
case XIEventType.RawButtonRelease:
@ -385,15 +384,13 @@ namespace OpenTK.Platform.X11
case 1: d.State.EnableBit((int)MouseButton.Left); break;
case 2: d.State.EnableBit((int)MouseButton.Middle); break;
case 3: d.State.EnableBit((int)MouseButton.Right); break;
case 6: d.State.EnableBit((int)MouseButton.Button1); break;
case 7: d.State.EnableBit((int)MouseButton.Button2); break;
case 8: d.State.EnableBit((int)MouseButton.Button3); break;
case 9: d.State.EnableBit((int)MouseButton.Button4); break;
case 10: d.State.EnableBit((int)MouseButton.Button5); break;
case 11: d.State.EnableBit((int)MouseButton.Button6); break;
case 12: d.State.EnableBit((int)MouseButton.Button7); break;
case 13: d.State.EnableBit((int)MouseButton.Button8); break;
case 14: d.State.EnableBit((int)MouseButton.Button9); break;
case 8: d.State.EnableBit((int)MouseButton.Button1); break;
case 9: d.State.EnableBit((int)MouseButton.Button2); break;
case 10: d.State.EnableBit((int)MouseButton.Button3); break;
case 11: d.State.EnableBit((int)MouseButton.Button4); break;
case 12: d.State.EnableBit((int)MouseButton.Button5); break;
case 13: d.State.EnableBit((int)MouseButton.Button6); break;
case 14: d.State.EnableBit((int)MouseButton.Button7); break;
}
break;
@ -403,15 +400,13 @@ namespace OpenTK.Platform.X11
case 1: d.State.DisableBit((int)MouseButton.Left); break;
case 2: d.State.DisableBit((int)MouseButton.Middle); break;
case 3: d.State.DisableBit((int)MouseButton.Right); break;
case 6: d.State.DisableBit((int)MouseButton.Button1); break;
case 7: d.State.DisableBit((int)MouseButton.Button2); break;
case 8: d.State.DisableBit((int)MouseButton.Button3); break;
case 9: d.State.DisableBit((int)MouseButton.Button4); break;
case 10: d.State.DisableBit((int)MouseButton.Button5); break;
case 11: d.State.DisableBit((int)MouseButton.Button6); break;
case 12: d.State.DisableBit((int)MouseButton.Button7); break;
case 13: d.State.DisableBit((int)MouseButton.Button8); break;
case 14: d.State.DisableBit((int)MouseButton.Button9); break;
case 8: d.State.DisableBit((int)MouseButton.Button1); break;
case 9: d.State.DisableBit((int)MouseButton.Button2); break;
case 10: d.State.DisableBit((int)MouseButton.Button3); break;
case 11: d.State.DisableBit((int)MouseButton.Button4); break;
case 12: d.State.DisableBit((int)MouseButton.Button5); break;
case 13: d.State.DisableBit((int)MouseButton.Button6); break;
case 14: d.State.DisableBit((int)MouseButton.Button7); break;
}
break;
}