void
miSlideAndSizeWindow(WindowPtr pWin,
int x, int y,
unsigned int w, unsigned int h,
WindowPtr pSib)
{
WindowPtr pParent;
Bool WasViewable = (Bool)(pWin->viewable);
unsigned short width = pWin->drawable.width,
height = pWin->drawable.height;
short oldx = pWin->drawable.x,
oldy = pWin->drawable.y;
int bw = wBorderWidth (pWin);
short dw, dh;
DDXPointRec oldpt;
RegionPtr oldRegion = NULL;
Bool anyMarked = FALSE;
ScreenPtr pScreen;
WindowPtr pFirstChange;
WindowPtr pChild;
RegionPtr gravitate[StaticGravity + 1];
unsigned g;
int nx, ny; /* destination x,y */
int newx, newy; /* new inner window position */
RegionPtr pRegion = NULL;
RegionPtr destClip; /* portions of destination already written */
RegionPtr oldWinClip = NULL; /* old clip list for window */
RegionPtr borderVisible = NullRegion; /* visible area of the border */
Bool shrunk = FALSE; /* shrunk in an inner dimension */
Bool moved = FALSE; /* window position changed */
WindowPtr pLayerWin;
/* if this is a root window, can't be resized */
if (!(pParent = pWin->parent))
return ;
pScreen = pWin->drawable.pScreen;
newx = pParent->drawable.x + x + bw;
newy = pParent->drawable.y + y + bw;
if (WasViewable)
{
anyMarked = FALSE;
/*
* save the visible region of the window
*/
oldRegion = REGION_CREATE(pScreen, NullBox, 1);
REGION_COPY(pScreen, oldRegion, &pWin->winSize);
/*
* categorize child windows into regions to be moved
*/
for (g = 0; g <= StaticGravity; g++)
gravitate[g] = (RegionPtr) NULL;
for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib)
{
g = pChild->winGravity;
if (g != UnmapGravity)
{
if (!gravitate[g])
gravitate[g] = REGION_CREATE(pScreen, NullBox, 1);
REGION_UNION(pScreen, gravitate[g],
gravitate[g], &pChild->borderClip);
}
else
{
UnmapWindow(pChild, TRUE);
anyMarked = TRUE;
}
}
anyMarked |= (*pScreen->MarkOverlappedWindows)(pWin, pWin,
&pLayerWin);
oldWinClip = NULL;
if (pWin->bitGravity != ForgetGravity)
{
oldWinClip = REGION_CREATE(pScreen, NullBox, 1);
REGION_COPY(pScreen, oldWinClip, &pWin->clipList);
}
/*
* if the window is changing size, borderExposed
* can't be computed correctly without some help.
*/
if (pWin->drawable.height > h || pWin->drawable.width > w)
shrunk = TRUE;
if (newx != oldx || newy != oldy)
moved = TRUE;
if ((pWin->drawable.height != h || pWin->drawable.width != w) &&
HasBorder (pWin))
{
borderVisible = REGION_CREATE(pScreen, NullBox, 1);
/* for tiled borders, we punt and draw the whole thing */
if (pWin->borderIsPixel || !moved)
{
if (shrunk || moved)
REGION_SUBTRACT(pScreen, borderVisible,
&pWin->borderClip,
&pWin->winSize);
else
REGION_COPY(pScreen, borderVisible,
&pWin->borderClip);
}
}
}
pWin->origin.x = x + bw;
pWin->origin.y = y + bw;
pWin->drawable.height = h;
pWin->drawable.width = w;
x = pWin->drawable.x = newx;
y = pWin->drawable.y = newy;
SetWinSize (pWin);
SetBorderSize (pWin);
dw = (int)w - (int)width;
dh = (int)h - (int)height;
ResizeChildrenWinSize(pWin, x - oldx, y - oldy, dw, dh);
/* let the hardware adjust background and border pixmaps, if any */
(*pScreen->PositionWindow)(pWin, x, y);
pFirstChange = MoveWindowInStack(pWin, pSib);
if (WasViewable)
{
pRegion = REGION_CREATE(pScreen, NullBox, 1);
if (pLayerWin == pWin)
anyMarked |= (*pScreen->MarkOverlappedWindows)(pWin, pFirstChange,
NULL);
else
anyMarked |= (*pScreen->MarkOverlappedWindows)(pWin, pLayerWin,
NULL);
if (pWin->valdata)
{
pWin->valdata->before.resized = TRUE;
pWin->valdata->before.borderVisible = borderVisible;
}
if (anyMarked)
(*pScreen->ValidateTree)(pLayerWin->parent, pFirstChange, VTOther);
/*
* the entire window is trashed unless bitGravity
* recovers portions of it
*/
REGION_COPY(pScreen, &pWin->valdata->after.exposed, &pWin->clipList);
}
GravityTranslate (x, y, oldx, oldy, dw, dh, pWin->bitGravity, &nx, &ny);
if (WasViewable)
{
/* avoid the border */
if (HasBorder (pWin))
{
int offx, offy, dx, dy;
/* kruft to avoid double translates for each gravity */
offx = 0;
offy = 0;
for (g = 0; g <= StaticGravity; g++)
{
if (!gravitate[g])
continue;
/* align winSize to gravitate[g].
* winSize is in new coordinates,
* gravitate[g] is still in old coordinates */
GravityTranslate (x, y, oldx, oldy, dw, dh, g, &nx, &ny);
dx = (oldx - nx) - offx;
dy = (oldy - ny) - offy;
if (dx || dy)
{
REGION_TRANSLATE(pScreen, &pWin->winSize, dx, dy);
offx += dx;
offy += dy;
}
REGION_INTERSECT(pScreen, gravitate[g], gravitate[g],
&pWin->winSize);
}
/* get winSize back where it belongs */
if (offx || offy)
REGION_TRANSLATE(pScreen, &pWin->winSize, -offx, -offy);
}
/*
* add screen bits to the appropriate bucket
*/
if (oldWinClip)
{
/*
* clip to new clipList
*/
REGION_COPY(pScreen, pRegion, oldWinClip);
REGION_TRANSLATE(pScreen, pRegion, nx - oldx, ny - oldy);
REGION_INTERSECT(pScreen, oldWinClip, pRegion, &pWin->clipList);
/*
* don't step on any gravity bits which will be copied after this
* region. Note -- this assumes that the regions will be copied
* in gravity order.
*/
for (g = pWin->bitGravity + 1; g <= StaticGravity; g++)
{
if (gravitate[g])
REGION_SUBTRACT(pScreen, oldWinClip, oldWinClip,
gravitate[g]);
}
REGION_TRANSLATE(pScreen, oldWinClip, oldx - nx, oldy - ny);
g = pWin->bitGravity;
if (!gravitate[g])
gravitate[g] = oldWinClip;
else
{
REGION_UNION(pScreen, gravitate[g], gravitate[g], oldWinClip);
REGION_DESTROY(pScreen, oldWinClip);
}
}
/*
* move the bits on the screen
*/
destClip = NULL;
for (g = 0; g <= StaticGravity; g++)
{
if (!gravitate[g])
continue;
GravityTranslate (x, y, oldx, oldy, dw, dh, g, &nx, &ny);
oldpt.x = oldx + (x - nx);
oldpt.y = oldy + (y - ny);
/* Note that gravitate[g] is *translated* by CopyWindow */
/* only copy the remaining useful bits */
REGION_INTERSECT(pScreen, gravitate[g], gravitate[g], oldRegion);
/* clip to not overwrite already copied areas */
if (destClip) {
REGION_TRANSLATE(pScreen, destClip, oldpt.x - x, oldpt.y - y);
REGION_SUBTRACT(pScreen, gravitate[g], gravitate[g], destClip);
REGION_TRANSLATE(pScreen, destClip, x - oldpt.x, y - oldpt.y);
}
/* and move those bits */
if (oldpt.x != x || oldpt.y != y
#ifdef COMPOSITE
|| pWin->redirectDraw
#endif
)
{
(*pWin->drawable.pScreen->CopyWindow)(pWin, oldpt, gravitate[g]);
}
/* remove any overwritten bits from the remaining useful bits */
REGION_SUBTRACT(pScreen, oldRegion, oldRegion, gravitate[g]);
/*
* recompute exposed regions of child windows
*/
for (pChild = pWin->firstChild; pChild; pChild = pChild->nextSib)
{
if (pChild->winGravity != g)
continue;
REGION_INTERSECT(pScreen, pRegion,
&pChild->borderClip, gravitate[g]);
TraverseTree (pChild, miRecomputeExposures, (pointer)pRegion);
}
/*
* remove the successfully copied regions of the
* window from its exposed region
*/
if (g == pWin->bitGravity)
REGION_SUBTRACT(pScreen, &pWin->valdata->after.exposed,
&pWin->valdata->after.exposed, gravitate[g]);
if (!destClip)
destClip = gravitate[g];
else
{
REGION_UNION(pScreen, destClip, destClip, gravitate[g]);
REGION_DESTROY(pScreen, gravitate[g]);
}
}
REGION_DESTROY(pScreen, oldRegion);
REGION_DESTROY(pScreen, pRegion);
if (destClip)
REGION_DESTROY(pScreen, destClip);
if (anyMarked)
(*pScreen->HandleExposures)(pLayerWin->parent);
if (anyMarked && pScreen->PostValidateTree)
(*pScreen->PostValidateTree)(pLayerWin->parent, pFirstChange,
VTOther);
}
if (pWin->realized)
WindowsRestructured ();
}
static Bool
miDbePositionWindow(WindowPtr pWin, int x, int y)
{
ScreenPtr pScreen;
DbeScreenPrivPtr pDbeScreenPriv;
DbeWindowPrivPtr pDbeWindowPriv;
int width, height;
int dx, dy, dw, dh;
int sourcex, sourcey;
int destx, desty;
int savewidth, saveheight;
PixmapPtr pFrontBuffer;
PixmapPtr pBackBuffer;
Bool clear;
GCPtr pGC;
xRectangle clearRect;
Bool ret;
/*
**************************************************************************
** 1. Unwrap the member routine.
**************************************************************************
*/
pScreen = pWin->drawable.pScreen;
pDbeScreenPriv = DBE_SCREEN_PRIV(pScreen);
pScreen->PositionWindow = pDbeScreenPriv->PositionWindow;
/*
**************************************************************************
** 2. Do any work necessary before the member routine is called.
**
** In this case we do not need to do anything.
**************************************************************************
*/
/*
**************************************************************************
** 3. Call the member routine, saving its result if necessary.
**************************************************************************
*/
ret = (*pScreen->PositionWindow) (pWin, x, y);
/*
**************************************************************************
** 4. Rewrap the member routine, restoring the wrapper value first in case
** the wrapper (or something that it wrapped) change this value.
**************************************************************************
*/
pDbeScreenPriv->PositionWindow = pScreen->PositionWindow;
pScreen->PositionWindow = miDbePositionWindow;
/*
**************************************************************************
** 5. Do any work necessary after the member routine has been called.
**************************************************************************
*/
if (!(pDbeWindowPriv = DBE_WINDOW_PRIV(pWin))) {
return ret;
}
if (pDbeWindowPriv->width == pWin->drawable.width &&
pDbeWindowPriv->height == pWin->drawable.height) {
return ret;
}
width = pWin->drawable.width;
height = pWin->drawable.height;
dx = pWin->drawable.x - pDbeWindowPriv->x;
dy = pWin->drawable.y - pDbeWindowPriv->y;
dw = width - pDbeWindowPriv->width;
dh = height - pDbeWindowPriv->height;
GravityTranslate(0, 0, -dx, -dy, dw, dh, pWin->bitGravity, &destx, &desty);
clear = ((pDbeWindowPriv->width < (unsigned short) width) ||
(pDbeWindowPriv->height < (unsigned short) height) ||
(pWin->bitGravity == ForgetGravity));
sourcex = 0;
sourcey = 0;
savewidth = pDbeWindowPriv->width;
saveheight = pDbeWindowPriv->height;
/* Clip rectangle to source and destination. */
if (destx < 0) {
savewidth += destx;
sourcex -= destx;
destx = 0;
}
if (destx + savewidth > width) {
savewidth = width - destx;
}
if (desty < 0) {
saveheight += desty;
sourcey -= desty;
desty = 0;
}
if (desty + saveheight > height) {
saveheight = height - desty;
}
pDbeWindowPriv->width = width;
pDbeWindowPriv->height = height;
pDbeWindowPriv->x = pWin->drawable.x;
pDbeWindowPriv->y = pWin->drawable.y;
pGC = GetScratchGC(pWin->drawable.depth, pScreen);
if (clear) {
if ((*pDbeScreenPriv->SetupBackgroundPainter) (pWin, pGC)) {
clearRect.x = 0;
clearRect.y = 0;
clearRect.width = width;
clearRect.height = height;
}
else {
clear = FALSE;
}
}
/* Create DBE buffer pixmaps equal to size of resized window. */
pFrontBuffer = (*pScreen->CreatePixmap) (pScreen, width, height,
pWin->drawable.depth, 0);
pBackBuffer = (*pScreen->CreatePixmap) (pScreen, width, height,
pWin->drawable.depth, 0);
if (!pFrontBuffer || !pBackBuffer) {
/* We failed at creating 1 or 2 of the pixmaps. */
if (pFrontBuffer) {
(*pScreen->DestroyPixmap) (pFrontBuffer);
}
if (pBackBuffer) {
(*pScreen->DestroyPixmap) (pBackBuffer);
}
/* Destroy all buffers for this window. */
while (pDbeWindowPriv) {
/* DbeWindowPrivDelete() will free the window private if there no
* more buffer IDs associated with this window.
*/
FreeResource(pDbeWindowPriv->IDs[0], RT_NONE);
pDbeWindowPriv = DBE_WINDOW_PRIV(pWin);
}
FreeScratchGC(pGC);
return FALSE;
}
else {
/* Clear out the new DBE buffer pixmaps. */
/* I suppose this could avoid quite a bit of work if
* it computed the minimal area required.
*/
ValidateGC(&pFrontBuffer->drawable, pGC);
if (clear) {
(*pGC->ops->PolyFillRect) ((DrawablePtr) pFrontBuffer, pGC, 1,
&clearRect);
}
/* Copy the contents of the old front pixmap to the new one. */
if (pWin->bitGravity != ForgetGravity) {
(*pGC->ops->CopyArea) ((DrawablePtr) pDbeWindowPriv->pFrontBuffer,
(DrawablePtr) pFrontBuffer, pGC,
sourcex, sourcey, savewidth, saveheight,
destx, desty);
}
ValidateGC(&pBackBuffer->drawable, pGC);
if (clear) {
(*pGC->ops->PolyFillRect) ((DrawablePtr) pBackBuffer, pGC, 1,
&clearRect);
}
/* Copy the contents of the old back pixmap to the new one. */
if (pWin->bitGravity != ForgetGravity) {
(*pGC->ops->CopyArea) ((DrawablePtr) pDbeWindowPriv->pBackBuffer,
(DrawablePtr) pBackBuffer, pGC,
sourcex, sourcey, savewidth, saveheight,
destx, desty);
}
/* Destroy the old pixmaps, and point the DBE window priv to the new
* pixmaps.
*/
(*pScreen->DestroyPixmap) (pDbeWindowPriv->pFrontBuffer);
(*pScreen->DestroyPixmap) (pDbeWindowPriv->pBackBuffer);
pDbeWindowPriv->pFrontBuffer = pFrontBuffer;
pDbeWindowPriv->pBackBuffer = pBackBuffer;
/* Make sure all XID are associated with the new back pixmap. */
miDbeAliasBuffers(pDbeWindowPriv);
FreeScratchGC(pGC);
}
return ret;
} /* miDbePositionWindow() */
