/*
* Hide the window to make it and its children invisible on the screen.
* This is a recursive routine which increments the unmapcount values for
* this window and all of its children, and causes exposure events for
* windows which are newly uncovered.
*/
void
MwHideWindow(HWND hwnd,BOOL bChangeFocus, BOOL bSendMsg)
{
HWND wp = hwnd;
HWND pwp; /* parent window */
HWND sibwp; /* sibling window */
HWND childwp; /* child window */
if (wp == rootwp)
return;
++mwpaintNC; /* experimental NC paint handling*/
/* send hide message if currently visible*/
if(bSendMsg && wp->unmapcount == 0)
SendMessage(wp, WM_SHOWWINDOW, FALSE, 0L);
wp->unmapcount++;
for (childwp = wp->children; childwp; childwp = childwp->siblings)
MwHideWindow(childwp, bChangeFocus, bSendMsg);
if (wp == mousewp) {
MwCheckMouseWindow();
MwCheckCursor();
}
if (bChangeFocus && wp == focuswp)
SetFocus(rootwp->children? rootwp->children: rootwp);
/*
* If the parent window is still unmapped, then we are all done.
*/
if (wp->parent->unmapcount)
return;
/*
* Clear the area in the parent for this window, causing an
* exposure event for it.
*/
pwp = wp->parent;
MwClearWindow(pwp, wp->winrect.left - pwp->winrect.left,
wp->winrect.top - pwp->winrect.top,
wp->winrect.right - wp->winrect.left,
wp->winrect.bottom - wp->winrect.top, TRUE);
/*
* Finally clear and redraw all parts of our lower sibling
* windows that were covered by this window.
*/
sibwp = wp;
while (sibwp->siblings) {
sibwp = sibwp->siblings;
MwExposeArea(sibwp, wp->winrect.left, wp->winrect.top,
wp->winrect.right - wp->winrect.left,
wp->winrect.bottom - wp->winrect.top);
}
}
/*
* Move the cursor to the specified absolute screen coordinates.
* The coordinates are that of the defined hot spot of the cursor.
* The cursor's appearance is changed to that defined for the window
* in which the cursor is moved to. In addition, the window the
* cursor is in is recalculated.
*/
void MwMoveCursor(MWCOORD x, MWCOORD y)
{
/*
* Move the cursor only if necessary, offsetting it to
* place the hot spot at the specified coordinates.
*/
if (x != cursorx || y != cursory) {
if(curcursor)
GdMoveCursor(x - curcursor->cursor.hotx,
y - curcursor->cursor.hoty);
cursorx = x;
cursory = y;
}
/*
* Now check to see which window the mouse is in and whether or
* not the cursor shape should be changed.
*/
MwCheckMouseWindow();
MwCheckCursor();
}
/*
* Map the window to possibly make it and its children visible on the screen.
* This is a recursive routine which decrements the unmapcount values for
* this window and all of its children, and causes exposure events for
* those windows which become visible.
*/
void
MwShowWindow(HWND hwnd, BOOL bSendMsg)
{
HWND wp = hwnd;
if (wp == rootwp)
return;
++mwpaintNC; /* experimental NC paint handling*/
if (wp->unmapcount)
wp->unmapcount--;
if (wp->unmapcount == 0) {
SendMessage(wp, WM_SHOWWINDOW, TRUE, 0L);
MwCheckMouseWindow();
MwCheckCursor();
}
/*
* If the window just became visible,
* then draw its border, clear it to the background color, and
* generate an exposure event.
*/
if (wp->unmapcount == 0) {
/*MwDrawBorder(wp);*/
MwClearWindow(wp, 0, 0, wp->winrect.right - wp->winrect.left,
wp->winrect.bottom - wp->winrect.top, TRUE);
}
/*
* Do the same thing for the children.
*/
for (wp = wp->children; wp; wp = wp->siblings)
MwShowWindow(wp, bSendMsg);
}
/*
* Destroy the specified window, and all of its children.
* This is a recursive routine.
*/
void
MwDestroyWindow(HWND hwnd,BOOL bSendMsg)
{
HWND wp = hwnd;
HWND prevwp;
PMWLIST p;
PMSG pmsg;
if (wp == rootwp || !IsWindow (hwnd))
return;
/*
* Unmap the window.
*/
if (wp->unmapcount == 0)
MwHideWindow(wp, FALSE, FALSE);
if(bSendMsg)
SendMessage(hwnd, WM_DESTROY, 0, 0L);
/*
* Remove from timers
*/
MwRemoveWndFromTimers(hwnd);
/*
* Remove hotkeys
*/
MwRemoveWndFromHotkeys(hwnd);
/*
* Disable all sendmessages to this window.
*/
wp->lpfnWndProc = NULL;
/*
* Destroy all children, sending WM_DESTROY messages.
*/
while (wp->children)
MwDestroyWindow(wp->children, bSendMsg);
wp->pClass = NULL;
/*
* Free any cursor associated with the window.
*/
if (wp->cursor->usecount-- == 1) {
free(wp->cursor);
wp->cursor = NULL;
}
/*
* Remove this window from the child list of its parent.
*/
prevwp = wp->parent->children;
if (prevwp == wp)
wp->parent->children = wp->siblings;
else {
while (prevwp && prevwp->siblings != wp)
prevwp = prevwp->siblings;
if (prevwp) prevwp->siblings = wp->siblings;
}
wp->siblings = NULL;
/*
* Remove this window from the complete list of windows.
*/
prevwp = listwp;
if (prevwp == wp)
listwp = wp->next;
else {
while (prevwp->next && prevwp->next != wp)
prevwp = prevwp->next;
prevwp->next = wp->next;
}
wp->next = NULL;
/*
* Forget various information related to this window.
* Then finally free the structure.
*/
/* Remove all messages from msg queue for this window*/
for(p=mwMsgHead.head; p; ) {
pmsg = GdItemAddr(p, MSG, link);
if(pmsg->hwnd == wp) {
p = p->next;
GdListRemove(&mwMsgHead, &pmsg->link);
GdItemFree(pmsg);
} else
p = p->next;
}
/*
* Remove all properties from this window.
*/
for(p=hwnd->props.head; p; ) {
MWPROP *pProp = GdItemAddr(p, MWPROP, link);
p = p->next;
GdListRemove (&hwnd->props, &pProp->link);
GdItemFree (pProp);
}
/* FIXME: destroy hdc's relating to window?*/
if (wp == capturewp) {
capturewp = NULL;
MwCheckMouseWindow();
}
if (wp == MwGetTopWindow(focuswp))
SetFocus(rootwp->children? rootwp->children: rootwp);
/* destroy private DC*/
if(wp->owndc) {
HDC hdc = wp->owndc;
wp->owndc = NULL; /* force destroy with ReleaseDC*/
ReleaseDC(wp, hdc);
}
if (wp->szTitle) {
free(wp->szTitle);
wp->szTitle = NULL;
}
#if UPDATEREGIONS
if (wp->update) {
GdDestroyRegion(wp->update);
wp->update = NULL;
}
#endif
GdItemFree(wp);
}
