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fixed color dragging from colorwell

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This commit is contained in:
kojima
2000-03-24 01:11:54 +00:00
parent 62a929a231
commit 5bd797b066
4 changed files with 125 additions and 18 deletions
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122
WINGs/wcolorwell.c
View File

@@ -319,6 +319,97 @@ slideView(WMView *view, int srcX, int srcY, int dstX, int dstY)
}
static Window
findChildInWindow(Display *dpy, Window toplevel, int x, int y)
{
Window foo, bar;
Window *children;
unsigned nchildren;
int i;
if (!XQueryTree(dpy, toplevel, &foo, &bar,
&children, &nchildren) || children == NULL) {
return None;
}
/* first window that contains the point is the one */
for (i = nchildren-1; i >= 0; i--) {
XWindowAttributes attr;
if (XGetWindowAttributes(dpy, children[i], &attr)
&& attr.map_state == IsViewable
&& x >= attr.x && y >= attr.y
&& x < attr.x + attr.width && y < attr.y + attr.height) {
Window child;
child = findChildInWindow(dpy, children[i],
x - attr.x, y - attr.y);
XFree(children);
if (!child)
return toplevel;
else
return child;
}
}
XFree(children);
return None;
}
static Window
findWindowUnderDragPointer(WMScreen *scr, int x, int y, Window iconWindow)
{
Window foo, bar;
Window *children;
unsigned nchildren;
int i;
if (!XQueryTree(scr->display, scr->rootWin, &foo, &bar,
&children, &nchildren) || children == NULL) {
return None;
}
/* try to find the window below the iconWindow by traversing
* the whole window list */
/* first find the position of the iconWindow */
for (i = nchildren-1; i >= 0; i--) {
if (children[i] == iconWindow) {
i--;
break;
}
}
if (i <= 0) {
XFree(children);
return scr->rootWin;
}
/* first window that contains the point is the one */
for (; i >= 0; i--) {
XWindowAttributes attr;
Window child;
if (XGetWindowAttributes(scr->display, children[i], &attr)
&& attr.map_state == IsViewable
&& x >= attr.x && y >= attr.y
&& x < attr.x + attr.width && y < attr.y + attr.height
&& (child = findChildInWindow(scr->display, children[i],
x - attr.x, y - attr.y))) {
XFree(children);
return child;
}
}
XFree(children);
return None;
}
static void
dragColor(ColorWell *cPtr, XEvent *event, WMPixmap *image)
{
@@ -349,14 +440,15 @@ dragColor(ColorWell *cPtr, XEvent *event, WMPixmap *image)
XClearWindow(dpy, dragView->window);
XGrabPointer(dpy, dragView->window, True,
ButtonMotionMask|ButtonReleaseMask|EnterWindowMask,
XGrabPointer(dpy, scr->rootWin, True,
ButtonMotionMask|ButtonReleaseMask,
GrabModeSync, GrabModeAsync,
scr->rootWin, scr->defaultCursor, CurrentTime);
while (!done) {
XEvent ev;
WMView *view;
Window win;
XAllowEvents(dpy, SyncPointer, CurrentTime);
WMNextEvent(dpy, &ev);
@@ -375,23 +467,33 @@ dragColor(ColorWell *cPtr, XEvent *event, WMPixmap *image)
done = True;
break;
case EnterNotify:
view = W_GetViewForXWindow(dpy, ev.xcrossing.window);
case MotionNotify:
while (XCheckTypedEvent(dpy, MotionNotify, &ev)) ;
W_MoveView(dragView, ev.xmotion.x_root-8, ev.xmotion.y_root-8);
win = findWindowUnderDragPointer(scr, ev.xmotion.x_root,
ev.xmotion.y_root,
dragView->window);
if (win != None && win != scr->rootWin) {
view = W_GetViewForXWindow(dpy, win);
} else {
view = NULL;
}
if (view && view->self && W_CLASS(view->self) == WC_ColorWell
&& view->self != activeWell && view->self != cPtr) {
activeWell = view->self;
XRecolorCursor(dpy, scr->defaultCursor, &green, &back);
} else if (view->self!=NULL && view->self != activeWell) {
} else if (!view || view->self != activeWell) {
XRecolorCursor(dpy, scr->defaultCursor, &black, &back);
activeWell = NULL;
}
break;
case MotionNotify:
W_MoveView(dragView, ev.xmotion.x_root-8, ev.xmotion.y_root-8);
break;
default:
WMHandleEvent(&ev);