879 lines
26 KiB
C
879 lines
26 KiB
C
/*
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* Copyright (c) 1994-2003 by The XFree86 Project, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Except as contained in this notice, the name of the copyright holder(s)
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* and author(s) shall not be used in advertising or otherwise to promote
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* the sale, use or other dealings in this Software without prior written
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* authorization from the copyright holder(s) and author(s).
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*/
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include <X11/X.h>
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#include <X11/Xmd.h>
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#include "input.h"
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#include "cursor.h"
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#include "mipointer.h"
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#include "scrnintstr.h"
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#include "globals.h"
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#include "compiler.h"
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#include "xf86.h"
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#include "xf86Priv.h"
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#include "xf86_OSproc.h"
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#include <X11/extensions/XIproto.h>
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#include "xf86Xinput.h"
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#ifdef XFreeXDGA
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#include "dgaproc.h"
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#endif
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typedef struct _xf86EdgeRec {
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short screen;
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short start;
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short end;
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DDXPointRec offset;
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struct _xf86EdgeRec *next;
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} xf86EdgeRec, *xf86EdgePtr;
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typedef struct {
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xf86EdgePtr left, right, up, down;
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} xf86ScreenLayoutRec, *xf86ScreenLayoutPtr;
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static Bool xf86CursorOffScreen(ScreenPtr *pScreen, int *x, int *y);
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static void xf86CrossScreen(ScreenPtr pScreen, Bool entering);
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static void xf86WarpCursor(DeviceIntPtr pDev, ScreenPtr pScreen, int x, int y);
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static void xf86PointerMoved(ScrnInfoPtr pScrn, int x, int y);
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static miPointerScreenFuncRec xf86PointerScreenFuncs = {
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xf86CursorOffScreen,
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xf86CrossScreen,
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xf86WarpCursor,
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/* let miPointerInitialize take care of these */
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NULL,
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NULL
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};
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static xf86ScreenLayoutRec xf86ScreenLayout[MAXSCREENS];
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static Bool HardEdges;
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/*
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* xf86InitViewport --
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* Initialize paning & zooming parameters, so that a driver must only
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* check what resolutions are possible and whether the virtual area
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* is valid if specified.
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*/
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void
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xf86InitViewport(ScrnInfoPtr pScr)
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{
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pScr->PointerMoved = xf86PointerMoved;
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/*
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* Compute the initial Viewport if necessary
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*/
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if (pScr->display) {
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if (pScr->display->frameX0 < 0) {
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pScr->frameX0 = (pScr->virtualX - pScr->modes->HDisplay) / 2;
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pScr->frameY0 = (pScr->virtualY - pScr->modes->VDisplay) / 2;
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}
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else {
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pScr->frameX0 = pScr->display->frameX0;
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pScr->frameY0 = pScr->display->frameY0;
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}
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}
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pScr->frameX1 = pScr->frameX0 + pScr->modes->HDisplay - 1;
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pScr->frameY1 = pScr->frameY0 + pScr->modes->VDisplay - 1;
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/*
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* Now adjust the initial Viewport, so it lies within the virtual area
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*/
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if (pScr->frameX1 >= pScr->virtualX) {
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pScr->frameX0 = pScr->virtualX - pScr->modes->HDisplay;
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pScr->frameX1 = pScr->frameX0 + pScr->modes->HDisplay - 1;
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}
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if (pScr->frameY1 >= pScr->virtualY) {
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pScr->frameY0 = pScr->virtualY - pScr->modes->VDisplay;
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pScr->frameY1 = pScr->frameY0 + pScr->modes->VDisplay - 1;
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}
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}
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/*
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* xf86SetViewport --
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* Scroll the visual part of the screen so the pointer is visible.
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*/
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void
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xf86SetViewport(ScreenPtr pScreen, int x, int y)
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{
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ScrnInfoPtr pScr = xf86ScreenToScrn(pScreen);
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(*pScr->PointerMoved) (pScr, x, y);
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}
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static void
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xf86PointerMoved(ScrnInfoPtr pScr, int x, int y)
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{
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Bool frameChanged = FALSE;
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/*
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* check wether (x,y) belongs to the visual part of the screen
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* if not, change the base of the displayed frame accoring
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*/
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if (pScr->frameX0 > x) {
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pScr->frameX0 = x;
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pScr->frameX1 = x + pScr->currentMode->HDisplay - 1;
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frameChanged = TRUE;
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}
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if (pScr->frameX1 < x) {
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pScr->frameX1 = x + 1;
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pScr->frameX0 = x - pScr->currentMode->HDisplay + 1;
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frameChanged = TRUE;
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}
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if (pScr->frameY0 > y) {
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pScr->frameY0 = y;
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pScr->frameY1 = y + pScr->currentMode->VDisplay - 1;
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frameChanged = TRUE;
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}
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if (pScr->frameY1 < y) {
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pScr->frameY1 = y;
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pScr->frameY0 = y - pScr->currentMode->VDisplay + 1;
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frameChanged = TRUE;
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}
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if (frameChanged && pScr->AdjustFrame != NULL)
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pScr->AdjustFrame(pScr, pScr->frameX0, pScr->frameY0);
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}
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/*
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* xf86LockZoom --
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* Enable/disable ZoomViewport
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*/
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void
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xf86LockZoom(ScreenPtr pScreen, Bool lock)
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{
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ScrnInfoPtr pScr = xf86ScreenToScrn(pScreen);
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pScr->zoomLocked = lock;
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}
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/*
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* xf86SwitchMode --
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* This is called by both keyboard processing and the VidMode extension to
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* set a new mode.
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*/
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Bool
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xf86SwitchMode(ScreenPtr pScreen, DisplayModePtr mode)
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{
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ScrnInfoPtr pScr = xf86ScreenToScrn(pScreen);
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ScreenPtr pCursorScreen;
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Bool Switched;
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int px, py;
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DeviceIntPtr dev, it;
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if (!pScr->vtSema || !mode || !pScr->SwitchMode)
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return FALSE;
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#ifdef XFreeXDGA
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if (DGAActive(pScr->scrnIndex))
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return FALSE;
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#endif
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if (mode == pScr->currentMode)
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return TRUE;
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if (mode->HDisplay > pScr->virtualX || mode->VDisplay > pScr->virtualY)
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return FALSE;
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/* Let's take an educated guess for which pointer to take here. And about as
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educated as it gets is to take the first pointer we find.
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*/
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for (dev = inputInfo.devices; dev; dev = dev->next) {
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if (IsPointerDevice(dev) && dev->spriteInfo->spriteOwner)
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break;
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}
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pCursorScreen = miPointerGetScreen(dev);
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if (pScreen == pCursorScreen)
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miPointerGetPosition(dev, &px, &py);
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OsBlockSIGIO();
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Switched = (*pScr->SwitchMode) (pScr, mode);
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if (Switched) {
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pScr->currentMode = mode;
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/*
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* Adjust frame for new display size.
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* Frame is centered around cursor position if cursor is on same screen.
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*/
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if (pScreen == pCursorScreen)
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pScr->frameX0 = px - (mode->HDisplay / 2) + 1;
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else
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pScr->frameX0 =
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(pScr->frameX0 + pScr->frameX1 + 1 - mode->HDisplay) / 2;
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if (pScr->frameX0 < 0)
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pScr->frameX0 = 0;
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pScr->frameX1 = pScr->frameX0 + mode->HDisplay - 1;
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if (pScr->frameX1 >= pScr->virtualX) {
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pScr->frameX0 = pScr->virtualX - mode->HDisplay;
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pScr->frameX1 = pScr->virtualX - 1;
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}
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if (pScreen == pCursorScreen)
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pScr->frameY0 = py - (mode->VDisplay / 2) + 1;
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else
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pScr->frameY0 =
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(pScr->frameY0 + pScr->frameY1 + 1 - mode->VDisplay) / 2;
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if (pScr->frameY0 < 0)
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pScr->frameY0 = 0;
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pScr->frameY1 = pScr->frameY0 + mode->VDisplay - 1;
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if (pScr->frameY1 >= pScr->virtualY) {
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pScr->frameY0 = pScr->virtualY - mode->VDisplay;
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pScr->frameY1 = pScr->virtualY - 1;
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}
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}
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OsReleaseSIGIO();
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if (pScr->AdjustFrame)
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(*pScr->AdjustFrame) (pScr, pScr->frameX0, pScr->frameY0);
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/* The original code centered the frame around the cursor if possible.
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* Since this is hard to achieve with multiple cursors, we do the following:
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* - center around the first pointer
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* - move all other pointers to the nearest edge on the screen (or leave
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* them unmodified if they are within the boundaries).
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*/
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if (pScreen == pCursorScreen) {
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xf86WarpCursor(dev, pScreen, px, py);
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}
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for (it = inputInfo.devices; it; it = it->next) {
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if (it == dev)
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continue;
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if (IsPointerDevice(it) && it->spriteInfo->spriteOwner) {
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pCursorScreen = miPointerGetScreen(it);
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if (pScreen == pCursorScreen) {
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miPointerGetPosition(it, &px, &py);
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if (px < pScr->frameX0)
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px = pScr->frameX0;
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else if (px > pScr->frameX1)
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px = pScr->frameX1;
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if (py < pScr->frameY0)
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py = pScr->frameY0;
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else if (py > pScr->frameY1)
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py = pScr->frameY1;
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xf86WarpCursor(it, pScreen, px, py);
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}
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}
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}
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return Switched;
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}
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/*
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* xf86ZoomViewport --
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* Reinitialize the visual part of the screen for another mode.
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*/
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void
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xf86ZoomViewport(ScreenPtr pScreen, int zoom)
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{
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ScrnInfoPtr pScr = xf86ScreenToScrn(pScreen);
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DisplayModePtr mode;
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if (pScr->zoomLocked || !(mode = pScr->currentMode))
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return;
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do {
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if (zoom > 0)
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mode = mode->next;
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else
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mode = mode->prev;
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} while (mode != pScr->currentMode && !(mode->type & M_T_USERDEF));
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(void) xf86SwitchMode(pScreen, mode);
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}
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static xf86EdgePtr
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FindEdge(xf86EdgePtr edge, int val)
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{
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while (edge && (edge->end <= val))
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edge = edge->next;
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if (edge && (edge->start <= val))
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return edge;
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return NULL;
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}
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/*
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* xf86CursorOffScreen --
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* Check whether it is necessary to switch to another screen
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*/
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static Bool
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xf86CursorOffScreen(ScreenPtr *pScreen, int *x, int *y)
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{
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xf86EdgePtr edge;
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int tmp;
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if (screenInfo.numScreens == 1)
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return FALSE;
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if (*x < 0) {
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tmp = *y;
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if (tmp < 0)
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tmp = 0;
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if (tmp >= (*pScreen)->height)
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tmp = (*pScreen)->height - 1;
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if ((edge = xf86ScreenLayout[(*pScreen)->myNum].left))
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edge = FindEdge(edge, tmp);
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if (!edge)
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*x = 0;
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else {
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*x += edge->offset.x;
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*y += edge->offset.y;
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*pScreen = xf86Screens[edge->screen]->pScreen;
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}
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}
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if (*x >= (*pScreen)->width) {
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tmp = *y;
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if (tmp < 0)
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tmp = 0;
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if (tmp >= (*pScreen)->height)
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tmp = (*pScreen)->height - 1;
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if ((edge = xf86ScreenLayout[(*pScreen)->myNum].right))
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edge = FindEdge(edge, tmp);
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if (!edge)
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*x = (*pScreen)->width - 1;
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else {
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*x += edge->offset.x;
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*y += edge->offset.y;
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*pScreen = xf86Screens[edge->screen]->pScreen;
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}
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}
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if (*y < 0) {
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tmp = *x;
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if (tmp < 0)
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tmp = 0;
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if (tmp >= (*pScreen)->width)
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tmp = (*pScreen)->width - 1;
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if ((edge = xf86ScreenLayout[(*pScreen)->myNum].up))
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edge = FindEdge(edge, tmp);
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if (!edge)
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*y = 0;
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else {
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*x += edge->offset.x;
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*y += edge->offset.y;
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*pScreen = xf86Screens[edge->screen]->pScreen;
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}
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}
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if (*y >= (*pScreen)->height) {
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tmp = *x;
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if (tmp < 0)
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tmp = 0;
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if (tmp >= (*pScreen)->width)
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tmp = (*pScreen)->width - 1;
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if ((edge = xf86ScreenLayout[(*pScreen)->myNum].down))
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edge = FindEdge(edge, tmp);
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if (!edge)
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*y = (*pScreen)->height - 1;
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else {
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*x += edge->offset.x;
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*y += edge->offset.y;
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(*pScreen) = xf86Screens[edge->screen]->pScreen;
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}
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}
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#if 0
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/* This presents problems for overlapping screens when
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HardEdges is used. Have to think about the logic more */
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if ((*x < 0) || (*x >= (*pScreen)->width) ||
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(*y < 0) || (*y >= (*pScreen)->height)) {
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/* We may have crossed more than one screen */
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xf86CursorOffScreen(pScreen, x, y);
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}
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#endif
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return TRUE;
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}
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/*
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* xf86CrossScreen --
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* Switch to another screen
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*
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* Currently nothing special happens, but mi assumes the CrossScreen
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* method exists.
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*/
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static void
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xf86CrossScreen(ScreenPtr pScreen, Bool entering)
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{
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}
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/*
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* xf86WarpCursor --
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* Warp possible to another screen
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*/
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/* ARGSUSED */
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static void
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xf86WarpCursor(DeviceIntPtr pDev, ScreenPtr pScreen, int x, int y)
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{
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OsBlockSIGIO();
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miPointerWarpCursor(pDev, pScreen, x, y);
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xf86Info.currentScreen = pScreen;
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OsReleaseSIGIO();
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}
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void *
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xf86GetPointerScreenFuncs(void)
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{
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return (void *) &xf86PointerScreenFuncs;
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}
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static xf86EdgePtr
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AddEdge(xf86EdgePtr edge,
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short min, short max, short dx, short dy, short screen)
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{
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xf86EdgePtr pEdge = edge, pPrev = NULL, pNew;
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while (1) {
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while (pEdge && (min >= pEdge->end)) {
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pPrev = pEdge;
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pEdge = pEdge->next;
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}
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if (!pEdge) {
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if (!(pNew = malloc(sizeof(xf86EdgeRec))))
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break;
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pNew->screen = screen;
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pNew->start = min;
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pNew->end = max;
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pNew->offset.x = dx;
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pNew->offset.y = dy;
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pNew->next = NULL;
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if (pPrev)
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pPrev->next = pNew;
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else
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edge = pNew;
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break;
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}
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else if (min < pEdge->start) {
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if (!(pNew = malloc(sizeof(xf86EdgeRec))))
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break;
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pNew->screen = screen;
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pNew->start = min;
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pNew->offset.x = dx;
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pNew->offset.y = dy;
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pNew->next = pEdge;
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if (pPrev)
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pPrev->next = pNew;
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else
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edge = pNew;
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if (max <= pEdge->start) {
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pNew->end = max;
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break;
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}
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else {
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pNew->end = pEdge->start;
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min = pEdge->end;
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}
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}
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else
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min = pEdge->end;
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pPrev = pEdge;
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pEdge = pEdge->next;
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if (max <= min)
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break;
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}
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return edge;
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}
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static void
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FillOutEdge(xf86EdgePtr pEdge, int limit)
|
|
{
|
|
xf86EdgePtr pNext;
|
|
int diff;
|
|
|
|
if (pEdge->start > 0)
|
|
pEdge->start = 0;
|
|
|
|
while ((pNext = pEdge->next)) {
|
|
diff = pNext->start - pEdge->end;
|
|
if (diff > 0) {
|
|
pEdge->end += diff >> 1;
|
|
pNext->start -= diff - (diff >> 1);
|
|
}
|
|
pEdge = pNext;
|
|
}
|
|
|
|
if (pEdge->end < limit)
|
|
pEdge->end = limit;
|
|
}
|
|
|
|
/*
|
|
* xf86InitOrigins() can deal with a maximum of 32 screens
|
|
* on 32 bit architectures, 64 on 64 bit architectures.
|
|
*/
|
|
|
|
void
|
|
xf86InitOrigins(void)
|
|
{
|
|
unsigned long screensLeft, prevScreensLeft, mask;
|
|
screenLayoutPtr screen;
|
|
ScreenPtr pScreen, refScreen;
|
|
int x1, x2, y1, y2, left, right, top, bottom;
|
|
int i, j, ref, minX, minY, min, max;
|
|
xf86ScreenLayoutPtr pLayout;
|
|
Bool OldStyleConfig = FALSE;
|
|
|
|
/* need to have this set up with a config file option */
|
|
HardEdges = FALSE;
|
|
|
|
memset(xf86ScreenLayout, 0, MAXSCREENS * sizeof(xf86ScreenLayoutRec));
|
|
|
|
screensLeft = prevScreensLeft = (1 << xf86NumScreens) - 1;
|
|
|
|
while (1) {
|
|
for (mask = screensLeft, i = 0; mask; mask >>= 1, i++) {
|
|
if (!(mask & 1L))
|
|
continue;
|
|
|
|
screen = &xf86ConfigLayout.screens[i];
|
|
|
|
if (screen->refscreen != NULL &&
|
|
screen->refscreen->screennum >= xf86NumScreens) {
|
|
screensLeft &= ~(1 << i);
|
|
xf86Msg(X_WARNING,
|
|
"Not including screen \"%s\" in origins calculation.\n",
|
|
screen->screen->id);
|
|
continue;
|
|
}
|
|
|
|
pScreen = xf86Screens[i]->pScreen;
|
|
switch (screen->where) {
|
|
case PosObsolete:
|
|
OldStyleConfig = TRUE;
|
|
pLayout = &xf86ScreenLayout[i];
|
|
/* force edge lists */
|
|
if (screen->left) {
|
|
ref = screen->left->screennum;
|
|
if (!xf86Screens[ref] || !xf86Screens[ref]->pScreen) {
|
|
ErrorF("Referenced uninitialized screen in Layout!\n");
|
|
break;
|
|
}
|
|
pLayout->left = AddEdge(pLayout->left,
|
|
0, pScreen->height,
|
|
xf86Screens[ref]->pScreen->width, 0,
|
|
ref);
|
|
}
|
|
if (screen->right) {
|
|
ref = screen->right->screennum;
|
|
if (!xf86Screens[ref] || !xf86Screens[ref]->pScreen) {
|
|
ErrorF("Referenced uninitialized screen in Layout!\n");
|
|
break;
|
|
}
|
|
pLayout->right = AddEdge(pLayout->right,
|
|
0, pScreen->height,
|
|
-pScreen->width, 0, ref);
|
|
}
|
|
if (screen->top) {
|
|
ref = screen->top->screennum;
|
|
if (!xf86Screens[ref] || !xf86Screens[ref]->pScreen) {
|
|
ErrorF("Referenced uninitialized screen in Layout!\n");
|
|
break;
|
|
}
|
|
pLayout->up = AddEdge(pLayout->up,
|
|
0, pScreen->width,
|
|
0, xf86Screens[ref]->pScreen->height,
|
|
ref);
|
|
}
|
|
if (screen->bottom) {
|
|
ref = screen->bottom->screennum;
|
|
if (!xf86Screens[ref] || !xf86Screens[ref]->pScreen) {
|
|
ErrorF("Referenced uninitialized screen in Layout!\n");
|
|
break;
|
|
}
|
|
pLayout->down = AddEdge(pLayout->down,
|
|
0, pScreen->width, 0,
|
|
-pScreen->height, ref);
|
|
}
|
|
/* we could also try to place it based on those
|
|
relative locations if we wanted to */
|
|
screen->x = screen->y = 0;
|
|
/* FALLTHROUGH */
|
|
case PosAbsolute:
|
|
pScreen->x = screen->x;
|
|
pScreen->y = screen->y;
|
|
screensLeft &= ~(1 << i);
|
|
break;
|
|
case PosRelative:
|
|
ref = screen->refscreen->screennum;
|
|
if (!xf86Screens[ref] || !xf86Screens[ref]->pScreen) {
|
|
ErrorF("Referenced uninitialized screen in Layout!\n");
|
|
break;
|
|
}
|
|
if (screensLeft & (1 << ref))
|
|
break;
|
|
refScreen = xf86Screens[ref]->pScreen;
|
|
pScreen->x = refScreen->x + screen->x;
|
|
pScreen->y = refScreen->y + screen->y;
|
|
screensLeft &= ~(1 << i);
|
|
break;
|
|
case PosRightOf:
|
|
ref = screen->refscreen->screennum;
|
|
if (!xf86Screens[ref] || !xf86Screens[ref]->pScreen) {
|
|
ErrorF("Referenced uninitialized screen in Layout!\n");
|
|
break;
|
|
}
|
|
if (screensLeft & (1 << ref))
|
|
break;
|
|
refScreen = xf86Screens[ref]->pScreen;
|
|
pScreen->x = refScreen->x + refScreen->width;
|
|
pScreen->y = refScreen->y;
|
|
screensLeft &= ~(1 << i);
|
|
break;
|
|
case PosLeftOf:
|
|
ref = screen->refscreen->screennum;
|
|
if (!xf86Screens[ref] || !xf86Screens[ref]->pScreen) {
|
|
ErrorF("Referenced uninitialized screen in Layout!\n");
|
|
break;
|
|
}
|
|
if (screensLeft & (1 << ref))
|
|
break;
|
|
refScreen = xf86Screens[ref]->pScreen;
|
|
pScreen->x = refScreen->x - pScreen->width;
|
|
pScreen->y = refScreen->y;
|
|
screensLeft &= ~(1 << i);
|
|
break;
|
|
case PosBelow:
|
|
ref = screen->refscreen->screennum;
|
|
if (!xf86Screens[ref] || !xf86Screens[ref]->pScreen) {
|
|
ErrorF("Referenced uninitialized screen in Layout!\n");
|
|
break;
|
|
}
|
|
if (screensLeft & (1 << ref))
|
|
break;
|
|
refScreen = xf86Screens[ref]->pScreen;
|
|
pScreen->x = refScreen->x;
|
|
pScreen->y = refScreen->y + refScreen->height;
|
|
screensLeft &= ~(1 << i);
|
|
break;
|
|
case PosAbove:
|
|
ref = screen->refscreen->screennum;
|
|
if (!xf86Screens[ref] || !xf86Screens[ref]->pScreen) {
|
|
ErrorF("Referenced uninitialized screen in Layout!\n");
|
|
break;
|
|
}
|
|
if (screensLeft & (1 << ref))
|
|
break;
|
|
refScreen = xf86Screens[ref]->pScreen;
|
|
pScreen->x = refScreen->x;
|
|
pScreen->y = refScreen->y - pScreen->height;
|
|
screensLeft &= ~(1 << i);
|
|
break;
|
|
default:
|
|
ErrorF("Illegal placement keyword in Layout!\n");
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
if (!screensLeft)
|
|
break;
|
|
|
|
if (screensLeft == prevScreensLeft) {
|
|
/* All the remaining screens are referencing each other.
|
|
Assign a value to one of them and go through again */
|
|
i = 0;
|
|
while (!((1 << i) & screensLeft)) {
|
|
i++;
|
|
}
|
|
|
|
ref = xf86ConfigLayout.screens[i].refscreen->screennum;
|
|
xf86Screens[ref]->pScreen->x = xf86Screens[ref]->pScreen->y = 0;
|
|
screensLeft &= ~(1 << ref);
|
|
}
|
|
|
|
prevScreensLeft = screensLeft;
|
|
}
|
|
|
|
/* justify the topmost and leftmost to (0,0) */
|
|
minX = xf86Screens[0]->pScreen->x;
|
|
minY = xf86Screens[0]->pScreen->y;
|
|
|
|
for (i = 1; i < xf86NumScreens; i++) {
|
|
if (xf86Screens[i]->pScreen->x < minX)
|
|
minX = xf86Screens[i]->pScreen->x;
|
|
if (xf86Screens[i]->pScreen->y < minY)
|
|
minY = xf86Screens[i]->pScreen->y;
|
|
}
|
|
|
|
if (minX || minY) {
|
|
for (i = 0; i < xf86NumScreens; i++) {
|
|
xf86Screens[i]->pScreen->x -= minX;
|
|
xf86Screens[i]->pScreen->y -= minY;
|
|
}
|
|
}
|
|
|
|
/* Create the edge lists */
|
|
|
|
if (!OldStyleConfig) {
|
|
for (i = 0; i < xf86NumScreens; i++) {
|
|
pLayout = &xf86ScreenLayout[i];
|
|
|
|
pScreen = xf86Screens[i]->pScreen;
|
|
|
|
left = pScreen->x;
|
|
right = left + pScreen->width;
|
|
top = pScreen->y;
|
|
bottom = top + pScreen->height;
|
|
|
|
for (j = 0; j < xf86NumScreens; j++) {
|
|
if (i == j)
|
|
continue;
|
|
|
|
refScreen = xf86Screens[j]->pScreen;
|
|
|
|
x1 = refScreen->x;
|
|
x2 = x1 + refScreen->width;
|
|
y1 = refScreen->y;
|
|
y2 = y1 + refScreen->height;
|
|
|
|
if ((bottom > y1) && (top < y2)) {
|
|
min = y1 - top;
|
|
if (min < 0)
|
|
min = 0;
|
|
max = pScreen->height - (bottom - y2);
|
|
if (max > pScreen->height)
|
|
max = pScreen->height;
|
|
|
|
if (((left - 1) >= x1) && ((left - 1) < x2))
|
|
pLayout->left = AddEdge(pLayout->left, min, max,
|
|
pScreen->x - refScreen->x,
|
|
pScreen->y - refScreen->y, j);
|
|
|
|
if ((right >= x1) && (right < x2))
|
|
pLayout->right = AddEdge(pLayout->right, min, max,
|
|
pScreen->x - refScreen->x,
|
|
pScreen->y - refScreen->y, j);
|
|
}
|
|
|
|
if ((left < x2) && (right > x1)) {
|
|
min = x1 - left;
|
|
if (min < 0)
|
|
min = 0;
|
|
max = pScreen->width - (right - x2);
|
|
if (max > pScreen->width)
|
|
max = pScreen->width;
|
|
|
|
if (((top - 1) >= y1) && ((top - 1) < y2))
|
|
pLayout->up = AddEdge(pLayout->up, min, max,
|
|
pScreen->x - refScreen->x,
|
|
pScreen->y - refScreen->y, j);
|
|
|
|
if ((bottom >= y1) && (bottom < y2))
|
|
pLayout->down = AddEdge(pLayout->down, min, max,
|
|
pScreen->x - refScreen->x,
|
|
pScreen->y - refScreen->y, j);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!HardEdges && !OldStyleConfig) {
|
|
for (i = 0; i < xf86NumScreens; i++) {
|
|
pLayout = &xf86ScreenLayout[i];
|
|
pScreen = xf86Screens[i]->pScreen;
|
|
if (pLayout->left)
|
|
FillOutEdge(pLayout->left, pScreen->height);
|
|
if (pLayout->right)
|
|
FillOutEdge(pLayout->right, pScreen->height);
|
|
if (pLayout->up)
|
|
FillOutEdge(pLayout->up, pScreen->width);
|
|
if (pLayout->down)
|
|
FillOutEdge(pLayout->down, pScreen->width);
|
|
}
|
|
}
|
|
|
|
update_desktop_dimensions();
|
|
}
|
|
|
|
void
|
|
xf86ReconfigureLayout(void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < MAXSCREENS; i++) {
|
|
xf86ScreenLayoutPtr sl = &xf86ScreenLayout[i];
|
|
|
|
/* we don't have to zero these, xf86InitOrigins() takes care of that */
|
|
free(sl->left);
|
|
free(sl->right);
|
|
free(sl->up);
|
|
free(sl->down);
|
|
}
|
|
|
|
xf86InitOrigins();
|
|
}
|