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added extension for mouseoffset in dnd

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This commit is contained in:
kojima
2000-04-03 15:23:32 +00:00
parent 2905590520
commit 2c0fdba09e
1 changed files with 60 additions and 2 deletions
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60
WINGs/dragsource.c
View File

@@ -555,6 +555,53 @@ selectionDone(WMView *view, Atom selection, Atom target, void *cdata)
static void
setMouseOffsetHint(WMView *view, WMSize mouseOffset)
{
WMScreen *scr = W_VIEW_SCREEN(view);
long hint[2];
/*
* Tell the offset from the topleft corner of the icon being
* dragged. Not from XDND, but it's backwards compatible.
*/
hint[0] = mouseOffset.width;
hint[1] = mouseOffset.height;
XChangeProperty(scr->display, W_VIEW_DRAWABLE(view),
scr->wmIconDragOffsetAtom, XA_INTEGER, 32,
PropModeReplace, (unsigned char*)hint, 2);
}
static Bool
getMouseOffsetHint(WMScreen *scr, Window source, WMSize *mouseOffset)
{
long *hint;
Atom type_ret;
int fmt_ret;
unsigned long nitems_ret, bytes_after_ret;
Bool ok = False;
hint = NULL;
XGetWindowProperty(scr->display, source,
scr->wmIconDragOffsetAtom, 0, 2, False, XA_INTEGER,
&type_ret, &fmt_ret, &nitems_ret, &bytes_after_ret,
(unsigned char **)&hint);
if (hint && nitems_ret == 2) {
mouseOffset->width = hint[0];
mouseOffset->height = hint[1];
ok = True;
}
if (hint)
XFree(hint);
return ok;
}
@@ -612,6 +659,7 @@ WMDragImageFromView(WMView *view, WMPixmap *image, char *dataTypes[],
{
WMScreen *scr = view->screen;
Display *dpy = scr->display;
WMView *toplevel = W_TopLevelOfView(view);
Window icon;
XEvent ev;
WMRect rect = {{0,0},{0,0}};
@@ -655,7 +703,7 @@ WMDragImageFromView(WMView *view, WMPixmap *image, char *dataTypes[],
memset(&oldDragInfo, 0, sizeof(WMDraggingInfo));
dragInfo.image = image;
dragInfo.sourceView = view;
dragInfo.sourceWindow = W_VIEW_DRAWABLE(W_TopLevelOfView(view));
dragInfo.sourceWindow = W_VIEW_DRAWABLE(toplevel);
dragInfo.destinationWindow = dragInfo.sourceWindow;
@@ -682,6 +730,8 @@ WMDragImageFromView(WMView *view, WMPixmap *image, char *dataTypes[],
return;
}
setMouseOffsetHint(toplevel, mouseOffset);
if (view->dragSourceProcs->beganDragImage != NULL) {
view->dragSourceProcs->beganDragImage(view, image, atLocation);
}
@@ -1126,6 +1176,8 @@ W_HandleDNDClientMessage(WMView *toplevel, XClientMessageEvent *event)
scr->dragInfo.sourceWindow = source = event->data.l[0];
scr->dragInfo.destinationWindow = event->window;
getMouseOffsetHint(scr, source, &scr->dragInfo.mouseOffset);
/* XXX */
scr->dragInfo.image = NULL;
@@ -1133,6 +1185,10 @@ W_HandleDNDClientMessage(WMView *toplevel, XClientMessageEvent *event)
&scr->dragInfo.location.x, &scr->dragInfo.location.y,
&bla, &bla, &ble);
scr->dragInfo.imageLocation = scr->dragInfo.location;
scr->dragInfo.imageLocation.x -= scr->dragInfo.mouseOffset.width;
scr->dragInfo.imageLocation.y -= scr->dragInfo.mouseOffset.height;
translateCoordinates(scr, scr->dragInfo.destinationWindow,
scr->dragInfo.location.x,
scr->dragInfo.location.y, &x, &y);
@@ -1149,6 +1205,8 @@ W_HandleDNDClientMessage(WMView *toplevel, XClientMessageEvent *event)
scr->dragInfo.location.y = event->data.l[2] & 0xffff;
scr->dragInfo.imageLocation = scr->dragInfo.location;
scr->dragInfo.imageLocation.x -= scr->dragInfo.mouseOffset.width;
scr->dragInfo.imageLocation.y -= scr->dragInfo.mouseOffset.height;
if (scr->dragInfo.protocolVersion >= 1) {
scr->dragInfo.timestamp = event->data.l[3];