xenocara/xserver/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
*/
#ifdef HAVE_XWIN_CONFIG_H
#include <xwin-config.h>
#endif
#include "win.h"
#include "inputstr.h"
#include "exevents.h" /* for button/axes labels */
#include "xserver-properties.h"
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#include "inpututils.h"
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/* Peek the internal button mapping */
static CARD8 const *g_winMouseButtonMap = NULL;
/*
* Local prototypes
*/
static void
winMouseCtrl(DeviceIntPtr pDevice, PtrCtrl * pCtrl);
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static void
winMouseCtrl(DeviceIntPtr pDevice, PtrCtrl * pCtrl)
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{
}
/*
* See Porting Layer Definition - p. 18
* This is known as a DeviceProc
*/
int
winMouseProc(DeviceIntPtr pDeviceInt, int iState)
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{
int lngMouseButtons, i;
int lngWheelEvents = 2;
CARD8 *map;
DevicePtr pDevice = (DevicePtr) pDeviceInt;
Atom *btn_labels;
Atom axes_labels[2];
switch (iState) {
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case DEVICE_INIT:
/* Get number of mouse buttons */
lngMouseButtons = GetSystemMetrics(SM_CMOUSEBUTTONS);
winMsg(X_PROBED, "%d mouse buttons found\n", lngMouseButtons);
/* Mapping of windows events to X events:
* LEFT:1 MIDDLE:2 RIGHT:3
* SCROLL_UP:4 SCROLL_DOWN:5
* XBUTTON 1:6 XBUTTON 2:7 ...
*
* To map scroll wheel correctly we need at least the 3 normal buttons
*/
if (lngMouseButtons < 3)
lngMouseButtons = 3;
/* allocate memory:
* number of buttons + 2x mouse wheel event + 1 extra (offset for map)
*/
map = malloc(sizeof(CARD8) * (lngMouseButtons + lngWheelEvents + 1));
/* initalize button map */
map[0] = 0;
for (i = 1; i <= lngMouseButtons + lngWheelEvents; i++)
map[i] = i;
btn_labels = calloc((lngMouseButtons + lngWheelEvents), sizeof(Atom));
btn_labels[0] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_LEFT);
btn_labels[1] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_MIDDLE);
btn_labels[2] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_RIGHT);
btn_labels[3] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_WHEEL_UP);
btn_labels[4] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_WHEEL_DOWN);
axes_labels[0] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_X);
axes_labels[1] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_Y);
InitPointerDeviceStruct(pDevice,
map,
lngMouseButtons + lngWheelEvents,
btn_labels,
winMouseCtrl,
GetMotionHistorySize(), 2, axes_labels);
free(map);
free(btn_labels);
g_winMouseButtonMap = pDeviceInt->button->map;
break;
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case DEVICE_ON:
pDevice->on = TRUE;
break;
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case DEVICE_CLOSE:
g_winMouseButtonMap = NULL;
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case DEVICE_OFF:
pDevice->on = FALSE;
break;
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}
return Success;
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}
/* Handle the mouse wheel */
int
winMouseWheel(ScreenPtr pScreen, int iDeltaZ)
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{
winScreenPriv(pScreen);
int button; /* Button4 or Button5 */
/* 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;
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}
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;
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}
/*
* 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;
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}
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;
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}
/* Set the button to indicate up or down wheel delta */
if (iDeltaZ > 0) {
button = Button4;
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}
else {
button = Button5;
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}
/*
* 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;
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}
/* Generate X input messages for each wheel delta we have seen */
while (iDeltaZ--) {
/* Push the wheel button */
winMouseButtonsSendEvent(ButtonPress, button);
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/* Release the wheel button */
winMouseButtonsSendEvent(ButtonRelease, button);
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}
return 0;
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}
/*
* Enqueue a mouse button event
*/
void
winMouseButtonsSendEvent(int iEventType, int iButton)
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{
ValuatorMask mask;
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if (g_winMouseButtonMap)
iButton = g_winMouseButtonMap[iButton];
valuator_mask_zero(&mask);
QueuePointerEvents(g_pwinPointer, iEventType, iButton,
POINTER_RELATIVE, &mask);
#if CYGDEBUG
ErrorF("winMouseButtonsSendEvent: iEventType: %d, iButton: %d\n",
iEventType, iButton);
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#endif
}
/*
* Decide what to do with a Windows mouse message
*/
int
winMouseButtonsHandle(ScreenPtr pScreen,
int iEventType, int iButton, WPARAM wParam)
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{
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;
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}
/* 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);
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}
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;
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}
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);
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}
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);
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}
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);
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}
return 0;
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}
/**
* Enqueue a motion event.
*
*/
void
winEnqueueMotion(int x, int y)
{
int valuators[2];
ValuatorMask mask;
valuators[0] = x;
valuators[1] = y;
valuator_mask_set_range(&mask, 0, 2, valuators);
QueuePointerEvents(g_pwinPointer, MotionNotify, 0,
POINTER_ABSOLUTE | POINTER_SCREEN, &mask);
}