# define NEED_EVENTS
# include "X.h"
# include "Xmd.h"
# include "Xproto.h"
# include "misc.h"
# include "windowstr.h"
# include "pixmapstr.h"
# include "mi.h"
# include "scrnintstr.h"
# include "mipointrst.h"
# include "cursorstr.h"
# include "dixstruct.h"
int miPointerScreenIndex;
static unsigned long miPointerGeneration = 0;
#define GetScreenPrivate(s) ((miPointerScreenPtr) ((s)->devPrivates[miPointerScreenIndex].ptr))
#define SetupScreen(s) miPointerScreenPtr pScreenPriv = GetScreenPrivate(s)
static miPointerRec miPointer;
static Bool miPointerRealizeCursor(ScreenPtr pScreen, CursorPtr pCursor);
static Bool miPointerUnrealizeCursor(ScreenPtr pScreen, CursorPtr pCursor);
static Bool miPointerDisplayCursor(ScreenPtr pScreen, CursorPtr pCursor);
static void miPointerConstrainCursor(ScreenPtr pScreen, BoxPtr pBox);
static void miPointerPointerNonInterestBox(ScreenPtr pScreen, BoxPtr pBox);
static void miPointerCursorLimits(ScreenPtr pScreen, CursorPtr pCursor,
BoxPtr pHotBox, BoxPtr pTopLeftBox);
static Bool miPointerSetCursorPosition(ScreenPtr pScreen, int x, int y,
Bool generateEvent);
static Bool miPointerCloseScreen(int index, ScreenPtr pScreen);
static void miPointerMove(ScreenPtr pScreen, int x, int y, unsigned long time);
Bool
miPointerInitialize (pScreen, spriteFuncs, screenFuncs, waitForUpdate)
ScreenPtr pScreen;
miPointerSpriteFuncPtr spriteFuncs;
miPointerScreenFuncPtr screenFuncs;
Bool waitForUpdate;
{
miPointerScreenPtr pScreenPriv;
if (miPointerGeneration != serverGeneration)
{
miPointerScreenIndex = AllocateScreenPrivateIndex();
if (miPointerScreenIndex < 0)
return FALSE;
miPointerGeneration = serverGeneration;
}
pScreenPriv = (miPointerScreenPtr) xalloc (sizeof (miPointerScreenRec));
if (!pScreenPriv)
return FALSE;
pScreenPriv->spriteFuncs = spriteFuncs;
pScreenPriv->screenFuncs = screenFuncs;
if (!screenFuncs->EnqueueEvent)
screenFuncs->EnqueueEvent = mieqEnqueue;
if (!screenFuncs->NewEventScreen)
screenFuncs->NewEventScreen = mieqSwitchScreen;
pScreenPriv->waitForUpdate = waitForUpdate;
pScreenPriv->showTransparent = FALSE;
pScreenPriv->CloseScreen = pScreen->CloseScreen;
pScreen->CloseScreen = miPointerCloseScreen;
pScreen->devPrivates[miPointerScreenIndex].ptr = (pointer) pScreenPriv;
pScreen->ConstrainCursor = miPointerConstrainCursor;
pScreen->CursorLimits = miPointerCursorLimits;
pScreen->DisplayCursor = miPointerDisplayCursor;
pScreen->RealizeCursor = miPointerRealizeCursor;
pScreen->UnrealizeCursor = miPointerUnrealizeCursor;
pScreen->SetCursorPosition = miPointerSetCursorPosition;
pScreen->RecolorCursor = miRecolorCursor;
pScreen->PointerNonInterestBox = miPointerPointerNonInterestBox;
miPointer.pScreen = NULL;
miPointer.pSpriteScreen = NULL;
miPointer.pCursor = NULL;
miPointer.pSpriteCursor = NULL;
miPointer.limits.x1 = 0;
miPointer.limits.x2 = 32767;
miPointer.limits.y1 = 0;
miPointer.limits.y2 = 32767;
miPointer.confined = FALSE;
miPointer.x = 0;
miPointer.y = 0;
miPointer.history_start = miPointer.history_end = 0;
return TRUE;
}
static Bool
miPointerCloseScreen (index, pScreen)
int index;
ScreenPtr pScreen;
{
SetupScreen(pScreen);
if (pScreen == miPointer.pScreen)
miPointer.pScreen = 0;
if (pScreen == miPointer.pSpriteScreen)
miPointer.pSpriteScreen = 0;
pScreen->CloseScreen = pScreenPriv->CloseScreen;
xfree ((pointer) pScreenPriv);
return (*pScreen->CloseScreen) (index, pScreen);
}
static Bool
miPointerRealizeCursor (pScreen, pCursor)
ScreenPtr pScreen;
CursorPtr pCursor;
{
SetupScreen(pScreen);
return (*pScreenPriv->spriteFuncs->RealizeCursor) (pScreen, pCursor);
}
static Bool
miPointerUnrealizeCursor (pScreen, pCursor)
ScreenPtr pScreen;
CursorPtr pCursor;
{
SetupScreen(pScreen);
return (*pScreenPriv->spriteFuncs->UnrealizeCursor) (pScreen, pCursor);
}
static Bool
miPointerDisplayCursor (pScreen, pCursor)
ScreenPtr pScreen;
CursorPtr pCursor;
{
miPointer.pCursor = pCursor;
miPointer.pScreen = pScreen;
miPointerUpdate ();
return TRUE;
}
static void
miPointerConstrainCursor (pScreen, pBox)
ScreenPtr pScreen;
BoxPtr pBox;
{
miPointer.limits = *pBox;
miPointer.confined = PointerConfinedToScreen();
}
static void
miPointerPointerNonInterestBox (pScreen, pBox)
ScreenPtr pScreen;
BoxPtr pBox;
{
}
static void
miPointerCursorLimits(pScreen, pCursor, pHotBox, pTopLeftBox)
ScreenPtr pScreen;
CursorPtr pCursor;
BoxPtr pHotBox;
BoxPtr pTopLeftBox;
{
*pTopLeftBox = *pHotBox;
}
static Bool GenerateEvent;
static Bool
miPointerSetCursorPosition(pScreen, x, y, generateEvent)
ScreenPtr pScreen;
int x, y;
Bool generateEvent;
{
SetupScreen (pScreen);
GenerateEvent = generateEvent;
(*pScreenPriv->screenFuncs->WarpCursor) (pScreen, x, y);
if (!generateEvent)
miPointerUpdate();
return TRUE;
}
void
miPointerWarpCursor (pScreen, x, y)
ScreenPtr pScreen;
int x, y;
{
SetupScreen (pScreen);
if (miPointer.pScreen != pScreen)
(*pScreenPriv->screenFuncs->NewEventScreen) (pScreen, TRUE);
if (GenerateEvent)
{
miPointerMove (pScreen, x, y, GetTimeInMillis());
}
else
{
if (!pScreenPriv->waitForUpdate && pScreen == miPointer.pSpriteScreen)
{
miPointer.devx = x;
miPointer.devy = y;
if(!miPointer.pCursor->bits->emptyMask)
(*pScreenPriv->spriteFuncs->MoveCursor) (pScreen, x, y);
}
miPointer.x = x;
miPointer.y = y;
miPointer.pScreen = pScreen;
}
}
int
miPointerGetMotionBufferSize ()
{
return MOTION_SIZE;
}
int
miPointerGetMotionEvents (pPtr, coords, start, stop, pScreen)
DeviceIntPtr pPtr;
xTimecoord *coords;
unsigned long start, stop;
ScreenPtr pScreen;
{
int i;
int count = 0;
miHistoryPtr h;
for (i = miPointer.history_start; i != miPointer.history_end;)
{
h = &miPointer.history[i];
if (h->event.time >= stop)
break;
if (h->event.time >= start)
{
*coords++ = h->event;
count++;
}
if (++i == MOTION_SIZE) i = 0;
}
return count;
}
void
miPointerUpdate ()
{
ScreenPtr pScreen;
miPointerScreenPtr pScreenPriv;
CursorPtr pCursor;
int x, y, devx, devy;
pScreen = miPointer.pScreen;
x = miPointer.x;
y = miPointer.y;
devx = miPointer.devx;
devy = miPointer.devy;
if (!pScreen)
return;
pScreenPriv = GetScreenPrivate (pScreen);
if (pScreen != miPointer.pSpriteScreen)
{
if (miPointer.pSpriteScreen)
{
miPointerScreenPtr pOldPriv;
pOldPriv = GetScreenPrivate (miPointer.pSpriteScreen);
if (miPointer.pCursor)
{
(*pOldPriv->spriteFuncs->SetCursor)
(miPointer.pSpriteScreen, NullCursor, 0, 0);
}
(*pOldPriv->screenFuncs->CrossScreen) (miPointer.pSpriteScreen, FALSE);
}
(*pScreenPriv->screenFuncs->CrossScreen) (pScreen, TRUE);
(*pScreenPriv->spriteFuncs->SetCursor)
(pScreen, miPointer.pCursor, x, y);
miPointer.devx = x;
miPointer.devy = y;
miPointer.pSpriteCursor = miPointer.pCursor;
miPointer.pSpriteScreen = pScreen;
}
else if (miPointer.pCursor != miPointer.pSpriteCursor)
{
pCursor = miPointer.pCursor;
if (pCursor->bits->emptyMask && !pScreenPriv->showTransparent)
pCursor = NullCursor;
(*pScreenPriv->spriteFuncs->SetCursor) (pScreen, pCursor, x, y);
miPointer.devx = x;
miPointer.devy = y;
miPointer.pSpriteCursor = miPointer.pCursor;
}
else if (x != devx || y != devy)
{
miPointer.devx = x;
miPointer.devy = y;
if(!miPointer.pCursor->bits->emptyMask)
(*pScreenPriv->spriteFuncs->MoveCursor) (pScreen, x, y);
}
}
void
miPointerDeltaCursor (dx, dy, time)
int dx, dy;
unsigned long time;
{
miPointerAbsoluteCursor (miPointer.x + dx, miPointer.y + dy, time);
}
void
miPointerSetNewScreen(int screen_no, int x, int y)
{
miPointerScreenPtr pScreenPriv;
ScreenPtr pScreen;
pScreen = screenInfo.screens[screen_no];
pScreenPriv = GetScreenPrivate (pScreen);
(*pScreenPriv->screenFuncs->NewEventScreen) (pScreen, FALSE);
NewCurrentScreen (pScreen, x, y);
miPointer.limits.x2 = pScreen->width;
miPointer.limits.y2 = pScreen->height;
}
ScreenPtr
miPointerCurrentScreen ()
{
return (miPointer.pScreen);
}
void
miPointerAbsoluteCursor (x, y, time)
int x, y;
unsigned long time;
{
miPointerScreenPtr pScreenPriv;
ScreenPtr pScreen;
ScreenPtr newScreen;
pScreen = miPointer.pScreen;
if (!pScreen)
return;
if (x < 0 || x >= pScreen->width || y < 0 || y >= pScreen->height)
{
pScreenPriv = GetScreenPrivate (pScreen);
if (!miPointer.confined)
{
newScreen = pScreen;
(*pScreenPriv->screenFuncs->CursorOffScreen) (&newScreen, &x, &y);
if (newScreen != pScreen)
{
pScreen = newScreen;
(*pScreenPriv->screenFuncs->NewEventScreen) (pScreen, FALSE);
pScreenPriv = GetScreenPrivate (pScreen);
miPointer.limits.x2 = pScreen->width;
miPointer.limits.y2 = pScreen->height;
}
}
}
if (x < miPointer.limits.x1)
x = miPointer.limits.x1;
if (x >= miPointer.limits.x2)
x = miPointer.limits.x2 - 1;
if (y < miPointer.limits.y1)
y = miPointer.limits.y1;
if (y >= miPointer.limits.y2)
y = miPointer.limits.y2 - 1;
if (miPointer.x == x && miPointer.y == y && miPointer.pScreen == pScreen)
return;
miPointerMove (pScreen, x, y, time);
}
void
miPointerPosition (x, y)
int *x, *y;
{
*x = miPointer.x;
*y = miPointer.y;
}
static void
miPointerMove (pScreen, x, y, time)
ScreenPtr pScreen;
int x, y;
unsigned long time;
{
SetupScreen(pScreen);
xEvent xE;
miHistoryPtr history;
int prev, end, start;
if (!pScreenPriv->waitForUpdate && pScreen == miPointer.pSpriteScreen)
{
miPointer.devx = x;
miPointer.devy = y;
if(!miPointer.pCursor->bits->emptyMask)
(*pScreenPriv->spriteFuncs->MoveCursor) (pScreen, x, y);
}
miPointer.x = x;
miPointer.y = y;
miPointer.pScreen = pScreen;
xE.u.u.type = MotionNotify;
xE.u.keyButtonPointer.rootX = x;
xE.u.keyButtonPointer.rootY = y;
xE.u.keyButtonPointer.time = time;
(*pScreenPriv->screenFuncs->EnqueueEvent) (&xE);
end = miPointer.history_end;
start = miPointer.history_start;
prev = end - 1;
if (end == 0)
prev = MOTION_SIZE - 1;
history = &miPointer.history[prev];
if (end == start || history->event.time != time)
{
history = &miPointer.history[end];
if (++end == MOTION_SIZE)
end = 0;
if (end == start)
{
start = end + 1;
if (start == MOTION_SIZE)
start = 0;
miPointer.history_start = start;
}
miPointer.history_end = end;
}
history->event.x = x;
history->event.y = y;
history->event.time = time;
history->pScreen = pScreen;
}
void
_miRegisterPointerDevice (pScreen, pDevice)
ScreenPtr pScreen;
DeviceIntPtr pDevice;
{
miPointer.pPointer = (DevicePtr)pDevice;
}
#ifdef miRegisterPointerDevice
#undef miRegisterPointerDevice
void
miRegisterPointerDevice (pScreen, pDevice)
ScreenPtr pScreen;
DevicePtr pDevice;
{
miPointer.pPointer = pDevice;
}
#endif