Initial revision

1 files changed, 295 insertions, 0 deletions

diff --git a/hw/xwin/winmouse.c b/hw/xwin/winmouse.c
new file mode 100644
index 000000000..8c9439bfd
--- /dev/null
+++ b/hw/xwin/winmouse.c
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+/*
+ *Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved.
+ *
+ *Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ *"Software"), to deal in the Software without restriction, including
+ *without limitation the rights to use, copy, modify, merge, publish,
+ *distribute, sublicense, and/or sell copies of the Software, and to
+ *permit persons to whom the Software is furnished to do so, subject to
+ *the following conditions:
+ *
+ *The above copyright notice and this permission notice shall be
+ *included in all copies or substantial portions of the Software.
+ *
+ *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *NONINFRINGEMENT. IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE FOR
+ *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+ *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *Except as contained in this notice, the name of the XFree86 Project
+ *shall not be used in advertising or otherwise to promote the sale, use
+ *or other dealings in this Software without prior written authorization
+ *from the XFree86 Project.
+ *
+ * Authors:	Dakshinamurthy Karra
+ *		Suhaib M Siddiqi
+ *		Peter Busch
+ *		Harold L Hunt II
+ */
+/* $XFree86: xc/programs/Xserver/hw/xwin/winmouse.c,v 1.4 2001/10/29 21:10:24 alanh Exp $ */
+
+#include "win.h"
+
+void
+winMouseCtrl (DeviceIntPtr pDevice, PtrCtrl *pCtrl)
+{
+}
+
+
+/*
+ * See Porting Layer Definition - p. 18
+ * This is known as a DeviceProc
+ */
+
+int
+winMouseProc (DeviceIntPtr pDeviceInt, int iState)
+{
+  CARD8			map[6];
+  DevicePtr		pDevice = (DevicePtr) pDeviceInt;
+
+  switch (iState)
+    {
+    case DEVICE_INIT:
+      map[1] = 1;
+      map[2] = 2;
+      map[3] = 3;
+      map[4] = 4;
+      map[5] = 5;
+      InitPointerDeviceStruct (pDevice,
+			       map,
+			       5, /* Buttons 4 and 5 are mouse wheel events */
+			       miPointerGetMotionEvents,
+			       winMouseCtrl,
+			       miPointerGetMotionBufferSize ());
+      break;
+
+    case DEVICE_ON:
+      pDevice->on = TRUE;
+      break;
+
+    case DEVICE_CLOSE:
+    case DEVICE_OFF:
+      pDevice->on = FALSE;
+      break;
+    }
+  return Success;
+}
+
+
+/* Handle the mouse wheel */
+int
+winMouseWheel (ScreenPtr pScreen, int iDeltaZ)
+{
+  winScreenPriv(pScreen);
+  xEvent		xCurrentEvent;
+
+  /* Button4 = WheelUp */
+  /* Button5 = WheelDown */
+
+  /* Do we have any previous delta stored? */
+  if ((pScreenPriv->iDeltaZ > 0
+       && iDeltaZ > 0)
+      || (pScreenPriv->iDeltaZ < 0
+	  && iDeltaZ < 0))
+    {
+      /* Previous delta and of same sign as current delta */
+      iDeltaZ += pScreenPriv->iDeltaZ;
+      pScreenPriv->iDeltaZ = 0;
+    }
+  else
+    {
+      /*
+       * Previous delta of different sign, or zero.
+       * We will set it to zero for either case,
+       * as blindly setting takes just as much time
+       * as checking, then setting if necessary :)
+       */
+      pScreenPriv->iDeltaZ = 0;
+    }
+
+  /*
+   * Only process this message if the wheel has moved further than
+   * WHEEL_DELTA
+   */
+  if (iDeltaZ >= WHEEL_DELTA || (-1 * iDeltaZ) >= WHEEL_DELTA)
+    {
+      pScreenPriv->iDeltaZ = 0;
+	  
+      /* Figure out how many whole deltas of the wheel we have */
+      iDeltaZ /= WHEEL_DELTA;
+    }
+  else
+    {
+      /*
+       * Wheel has not moved past WHEEL_DELTA threshold;
+       * we will store the wheel delta until the threshold
+       * has been reached.
+       */
+      pScreenPriv->iDeltaZ = iDeltaZ;
+      return 0;
+    }
+
+  /* Set the button to indicate up or down wheel delta */
+  if (iDeltaZ > 0)
+    {
+      xCurrentEvent.u.u.detail = Button4;
+    }
+  else
+    {
+      xCurrentEvent.u.u.detail = Button5;
+    }
+
+  /*
+   * Flip iDeltaZ to positive, if negative,
+   * because always need to generate a *positive* number of
+   * button clicks for the Z axis.
+   */
+  if (iDeltaZ < 0)
+    {
+      iDeltaZ *= -1;
+    }
+
+  /* Generate X input messages for each wheel delta we have seen */
+  while (iDeltaZ--)
+    {
+      /* Push the wheel button */
+      xCurrentEvent.u.u.type = ButtonPress;
+      xCurrentEvent.u.keyButtonPointer.time
+	= g_c32LastInputEventTime = GetTickCount ();
+      mieqEnqueue (&xCurrentEvent);
+
+      /* Release the wheel button */
+      xCurrentEvent.u.u.type = ButtonRelease;
+      xCurrentEvent.u.keyButtonPointer.time
+	= g_c32LastInputEventTime = GetTickCount ();
+      mieqEnqueue (&xCurrentEvent);
+    }
+
+  return 0;
+}
+
+
+/*
+ * Enqueue a mouse button event
+ */
+
+void
+winMouseButtonsSendEvent (int iEventType, int iButton)
+{
+  xEvent		xCurrentEvent;
+
+  /* Load an xEvent and enqueue the event */
+  xCurrentEvent.u.u.type = iEventType;
+  xCurrentEvent.u.u.detail = iButton;
+  xCurrentEvent.u.keyButtonPointer.time
+    = g_c32LastInputEventTime = GetTickCount ();
+  mieqEnqueue (&xCurrentEvent);
+}
+
+
+/*
+ * Decide what to do with a Windows mouse message
+ */
+
+int
+winMouseButtonsHandle (ScreenPtr pScreen,
+		       int iEventType, int iButton,
+		       WPARAM wParam)
+{
+  winScreenPriv(pScreen);
+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
+
+  /* Send button events right away if emulate 3 buttons is off */
+  if (pScreenInfo->iE3BTimeout == WIN_E3B_OFF)
+    {
+      /* Emulate 3 buttons is off, send the button event */
+      winMouseButtonsSendEvent (iEventType, iButton);
+      return 0;
+    }
+
+  /* Emulate 3 buttons is on, let the fun begin */
+  if (iEventType == ButtonPress
+      && pScreenPriv->iE3BCachedPress == 0
+      && !pScreenPriv->fE3BFakeButton2Sent)
+    {
+      /*
+       * Button was pressed, no press is cached,
+       * and there is no fake button 2 release pending.
+       */
+
+      /* Store button press type */
+      pScreenPriv->iE3BCachedPress = iButton;
+
+      /*
+       * Set a timer to send this button press if the other button
+       * is not pressed within the timeout time.
+       */
+      SetTimer (pScreenPriv->hwndScreen,
+		WIN_E3B_TIMER_ID,
+		pScreenInfo->iE3BTimeout,
+		NULL);
+    }
+  else if (iEventType == ButtonPress
+	   && pScreenPriv->iE3BCachedPress != 0
+	   && pScreenPriv->iE3BCachedPress != iButton
+	   && !pScreenPriv->fE3BFakeButton2Sent)
+    {
+      /*
+       * Button press is cached, other button was pressed,
+       * and there is no fake button 2 release pending.
+       */
+
+      /* Mouse button was cached and other button was pressed */
+      KillTimer (pScreenPriv->hwndScreen, WIN_E3B_TIMER_ID);
+      pScreenPriv->iE3BCachedPress = 0;
+
+      /* Send fake middle button */
+      winMouseButtonsSendEvent (ButtonPress, Button2);
+
+      /* Indicate that a fake middle button event was sent */
+      pScreenPriv->fE3BFakeButton2Sent = TRUE;
+    }
+  else if (iEventType == ButtonRelease
+	   && pScreenPriv->iE3BCachedPress == iButton)
+    {
+      /*
+       * Cached button was released before timer ran out,
+       * and before the other mouse button was pressed.
+       */
+      KillTimer (pScreenPriv->hwndScreen, WIN_E3B_TIMER_ID);
+      pScreenPriv->iE3BCachedPress = 0;
+
+      /* Send cached press, then send release */
+      winMouseButtonsSendEvent (ButtonPress, iButton);
+      winMouseButtonsSendEvent (ButtonRelease, iButton);
+    }
+  else if (iEventType == ButtonRelease
+	   && pScreenPriv->fE3BFakeButton2Sent
+	   && !(wParam & MK_LBUTTON)
+	   && !(wParam & MK_RBUTTON))
+    {
+      /*
+       * Fake button 2 was sent and both mouse buttons have now been released
+       */
+      pScreenPriv->fE3BFakeButton2Sent = FALSE;
+      
+      /* Send middle mouse button release */
+      winMouseButtonsSendEvent (ButtonRelease, Button2);
+    }
+  else if (iEventType == ButtonRelease
+	   && pScreenPriv->iE3BCachedPress == 0
+	   && !pScreenPriv->fE3BFakeButton2Sent)
+    {
+      /*
+       * Button was release, no button is cached,
+       * and there is no fake button 2 release is pending.
+       */
+      winMouseButtonsSendEvent (ButtonRelease, iButton);
+    }
+
+  return 0;
+}