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Diffstat (limited to 'xorg-server/mi/mipointer.c')
| -rw-r--r-- | xorg-server/mi/mipointer.c | 517 |
1 files changed, 517 insertions, 0 deletions
diff --git a/xorg-server/mi/mipointer.c b/xorg-server/mi/mipointer.c new file mode 100644 index 000000000..b55e68bf0 --- /dev/null +++ b/xorg-server/mi/mipointer.c @@ -0,0 +1,517 @@ +/* + +Copyright 1989, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +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 +OPEN GROUP 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 Open Group 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 Open Group. +*/ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +# define NEED_EVENTS +# include <X11/X.h> +# include <X11/Xmd.h> +# include <X11/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" +# include "inputstr.h" + +_X_EXPORT DevPrivateKey miPointerScreenKey = &miPointerScreenKey; + +#define GetScreenPrivate(s) ((miPointerScreenPtr) \ + dixLookupPrivate(&(s)->devPrivates, miPointerScreenKey)) +#define SetupScreen(s) miPointerScreenPtr pScreenPriv = GetScreenPrivate(s) + +/* + * until more than one pointer device exists. + */ + +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); + +static xEvent* events; /* for WarpPointer MotionNotifies */ + +_X_EXPORT Bool +miPointerInitialize (pScreen, spriteFuncs, screenFuncs, waitForUpdate) + ScreenPtr pScreen; + miPointerSpriteFuncPtr spriteFuncs; + miPointerScreenFuncPtr screenFuncs; + Bool waitForUpdate; +{ + miPointerScreenPtr pScreenPriv; + + pScreenPriv = (miPointerScreenPtr) xalloc (sizeof (miPointerScreenRec)); + if (!pScreenPriv) + return FALSE; + pScreenPriv->spriteFuncs = spriteFuncs; + pScreenPriv->screenFuncs = screenFuncs; + /* + * check for uninitialized methods + */ + 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; + dixSetPrivate(&pScreen->devPrivates, miPointerScreenKey, pScreenPriv); + /* + * set up screen cursor method table + */ + pScreen->ConstrainCursor = miPointerConstrainCursor; + pScreen->CursorLimits = miPointerCursorLimits; + pScreen->DisplayCursor = miPointerDisplayCursor; + pScreen->RealizeCursor = miPointerRealizeCursor; + pScreen->UnrealizeCursor = miPointerUnrealizeCursor; + pScreen->SetCursorPosition = miPointerSetCursorPosition; + pScreen->RecolorCursor = miRecolorCursor; + pScreen->PointerNonInterestBox = miPointerPointerNonInterestBox; + /* + * set up the pointer object + */ + 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; + + events = NULL; + + 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); + xfree ((pointer) events); + events = NULL; + return (*pScreen->CloseScreen) (index, pScreen); +} + +/* + * DIX/DDX interface routines + */ + +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; + miPointerUpdateSprite(inputInfo.pointer); + return TRUE; +} + +static void +miPointerConstrainCursor (pScreen, pBox) + ScreenPtr pScreen; + BoxPtr pBox; +{ + miPointer.limits = *pBox; + miPointer.confined = PointerConfinedToScreen(); +} + +/*ARGSUSED*/ +static void +miPointerPointerNonInterestBox (pScreen, pBox) + ScreenPtr pScreen; + BoxPtr pBox; +{ + /* until DIX uses this, this will remain a stub */ +} + +/*ARGSUSED*/ +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; + /* device dependent - must pend signal and call miPointerWarpCursor */ + (*pScreenPriv->screenFuncs->WarpCursor) (pScreen, x, y); + if (!generateEvent) + miPointerUpdateSprite(inputInfo.pointer); + return TRUE; +} + +/* Once signals are ignored, the WarpCursor function can call this */ + +_X_EXPORT void +miPointerWarpCursor (pScreen, x, y) + ScreenPtr pScreen; + int x, y; +{ + BOOL changedScreen = FALSE; + SetupScreen (pScreen); + + if (miPointer.pScreen != pScreen) + { + (*pScreenPriv->screenFuncs->NewEventScreen) (pScreen, TRUE); + changedScreen = TRUE; + } + + if (GenerateEvent) + { + miPointerMove (pScreen, x, y, GetTimeInMillis()); + } + else + { + /* everything from miPointerMove except the event and history */ + + 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; + } + + if (changedScreen) + UpdateSpriteForScreen (pScreen) ; +} + +/* + * Pointer/CursorDisplay interface routines + */ + +/* + * miPointerUpdate + * + * Syncronize the sprite with the cursor - called from ProcessInputEvents + */ + +void +miPointerUpdate () +{ + miPointerUpdateSprite(inputInfo.pointer); +} + +void +miPointerUpdateSprite (DeviceIntPtr pDev) +{ + ScreenPtr pScreen; + miPointerScreenPtr pScreenPriv; + CursorPtr pCursor; + int x, y, devx, devy; + + if (!pDev || !(pDev->coreEvents || pDev == inputInfo.pointer)) + return; + + pScreen = miPointer.pScreen; + if (!pScreen) + return; + + x = miPointer.x; + y = miPointer.y; + devx = miPointer.devx; + devy = miPointer.devy; + + pScreenPriv = GetScreenPrivate (pScreen); + /* + * if the cursor has switched screens, disable the sprite + * on the old screen + */ + 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; + } + /* + * if the cursor has changed, display the new one + */ + 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); + } +} + +/* + * miPointerDeltaCursor. The pointer has moved dx,dy from it's previous + * position. + */ + +void +miPointerDeltaCursor (int dx, int dy, unsigned long time) +{ + int x = miPointer.x + dx, y = miPointer.y + dy; + + miPointerSetPosition(inputInfo.pointer, &x, &y, time); +} + +void +miPointerSetNewScreen(int screen_no, int x, int y) +{ + miPointerSetScreen(inputInfo.pointer, screen_no, x, y); +} + +void +miPointerSetScreen(DeviceIntPtr pDev, 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; +} + +_X_EXPORT ScreenPtr +miPointerCurrentScreen () +{ + return miPointerGetScreen(inputInfo.pointer); +} + +_X_EXPORT ScreenPtr +miPointerGetScreen(DeviceIntPtr pDev) +{ + return miPointer.pScreen; +} + +/* Move the pointer to x, y on the current screen, update the sprite, and + * the motion history. Generates no events. Does not return changed x + * and y if they are clipped; use miPointerSetPosition instead. */ +_X_EXPORT void +miPointerAbsoluteCursor (int x, int y, unsigned long time) +{ + miPointerSetPosition(inputInfo.pointer, &x, &y, time); +} + +/* Move the pointer on the current screen, and update the sprite. */ +static void +miPointerMoved (DeviceIntPtr pDev, ScreenPtr pScreen, int x, int y, + unsigned long time) +{ + SetupScreen(pScreen); + + if (pDev && (pDev->coreEvents || pDev == inputInfo.pointer) && + !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; +} + +_X_EXPORT void +miPointerSetPosition(DeviceIntPtr pDev, int *x, int *y, unsigned long time) +{ + miPointerScreenPtr pScreenPriv; + ScreenPtr pScreen; + ScreenPtr newScreen; + + pScreen = miPointer.pScreen; + if (!pScreen) + return; /* called before ready */ + + if (!pDev || !(pDev->coreEvents || pDev == inputInfo.pointer)) + 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); + /* Smash the confine to the new screen */ + miPointer.limits.x2 = pScreen->width; + miPointer.limits.y2 = pScreen->height; + } + } + } + /* Constrain the sprite to the current limits. */ + 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; + + miPointerMoved(pDev, pScreen, *x, *y, time); +} + +_X_EXPORT void +miPointerPosition (int *x, int *y) +{ + miPointerGetPosition(inputInfo.pointer, x, y); +} + +_X_EXPORT void +miPointerGetPosition(DeviceIntPtr pDev, int *x, int *y) +{ + *x = miPointer.x; + *y = miPointer.y; +} + +void +miPointerMove (ScreenPtr pScreen, int x, int y, unsigned long time) +{ + int i, nevents; + int valuators[2]; + + miPointerMoved(inputInfo.pointer, pScreen, x, y, time); + + /* generate motion notify */ + valuators[0] = x; + valuators[1] = y; + + if (!events) + { + events = (xEvent*)xcalloc(sizeof(xEvent), GetMaximumEventsNum()); + + if (!events) + { + FatalError("Could not allocate event store.\n"); + return; + } + } + + nevents = GetPointerEvents(events, inputInfo.pointer, MotionNotify, 0, + POINTER_ABSOLUTE, 0, 2, valuators); + + for (i = 0; i < nevents; i++) + mieqEnqueue(inputInfo.pointer, &events[i]); +} |