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(svn r7618) -Feature: Add support for a parent<>child relationship in Window terms. A child

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is a window whose parent pointer is non-null. Deleting the parent cascades deleting
 the children as well; children first.
This commit is contained in:
Darkvater 2006-12-29 17:07:41 +00:00
parent 664f1d1fa0
commit 49eb2a91ab
2 changed files with 22 additions and 0 deletions
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21
window.c
View File

@ -287,6 +287,21 @@ void SetWindowDirty(const Window *w)
SetDirtyBlocks(w->left, w->top, w->left + w->width, w->top + w->height);
}
/** Find the Window whose parent pointer points to this window
* @parent w Window to find child of
* @return return a Window pointer that is the child of w, or NULL otherwise */
static Window *FindChildWindow(const Window *w)
{
Window* const *wz;
FOR_ALL_WINDOWS(wz) {
Window *v = *wz;
if (v->parent == w) return v;
}
return NULL;
}
/** Find the z-value of a window. A window must already be open
* or the behaviour is undefined but function should never fail */
Window **FindWindowZPosition(const Window *w)
@ -301,9 +316,14 @@ Window **FindWindowZPosition(const Window *w)
void DeleteWindow(Window *w)
{
Window *v;
Window **wz;
if (w == NULL) return;
/* Delete any children a window might have in a head-recursive manner */
v = FindChildWindow(w);
if (v != NULL) DeleteWindow(v);
if (_thd.place_mode != VHM_NONE &&
_thd.window_class == w->window_class &&
_thd.window_number == w->window_number) {
@ -317,6 +337,7 @@ void DeleteWindow(Window *w)
free(w->widget);
w->widget = NULL;
w->widget_count = 0;
w->parent = NULL;
/* Find the window in the z-array, and effectively remove it
* by moving all windows after it one to the left */

1
window.h
View File

@ -335,6 +335,7 @@ struct Window {
uint32 desc_flags;
WindowMessage message;
Window *parent;
byte custom[WINDOW_CUSTOM_SIZE];
};