removed listbag added tree bag

started drag & drop
2026-02-23 18:45:56 +01:00 · 2000-03-28 02:30:13 +00:00
parent 20c8f4fd58
commit 6672180d77
18 changed files with 2496 additions and 383 deletions
--- a/WINGs/dragdestination.c
+++ b/WINGs/dragdestination.c
@@ -0,0 +1,118 @@
+
+
+#include <X11/Xatom.h>
+
+#include "WINGsP.h"
+
+
+/* dropping */
+
+typedef struct W_DNDTargetInfo {
+    /* data types accepted for drops */
+    Atom *dropTypes;
+    int dropTypeCount;
+
+
+} DNDTargetInfo;
+
+
+static Atom XDNDversion = XDND_VERSION;
+
+
+static void
+realizedObserver(void *self, WMNotification *notif)
+{
+    WMView *view = (WMView*)WMGetNotificationObject(notif);
+        
+    XChangeProperty(W_VIEW_SCREEN(view)->display, W_VIEW_DRAWABLE(view), 
+		    W_VIEW_SCREEN(view)->xdndAwareAtom,
+		    XA_ATOM, 32, PropModeReplace,
+		    (unsigned char*)&XDNDversion, 1);
+
+    WMRemoveNotificationObserver(self);
+}
+
+
+void
+W_SetXdndAwareProperty(WMScreen *scr, WMView *view, Atom *types, int typeCount)
+{
+    Display *dpy = scr->display;
+
+    view = W_TopLevelOfView(view);
+    
+    if (!view->flags.xdndHintSet) {	
+	view->flags.xdndHintSet = 1;
+	
+	if (view->flags.realized) {
+	    XChangeProperty(dpy, W_VIEW_DRAWABLE(view), scr->xdndAwareAtom,
+			    XA_ATOM, 32, PropModeReplace,
+			    (unsigned char*)&XDNDversion, 1);
+	} else {
+	    WMAddNotificationObserver(realizedObserver, view, 
+				      WMViewRealizedNotification, 
+				      /* just use as an id */
+				      view->dragDestinationProcs);
+	}
+    }
+}
+
+
+
+
+WMData*
+WMGetDroppedData(WMView *view, WMDraggingInfo *info)
+{
+    return NULL;
+}
+
+
+void
+WMRegisterViewForDraggedTypes(WMView *view, char *acceptedTypes[])
+{
+    Atom *types;
+    int typeCount;
+    int i;
+    
+    typeCount = 0;
+    while (acceptedTypes[typeCount++]);
+    
+    types = wmalloc(sizeof(Atom)*(typeCount+1));
+
+    for (i = 0; i < typeCount; i++) {
+	types[i] = XInternAtom(W_VIEW_SCREEN(view)->display, 
+			       acceptedTypes[i], False);
+    }
+    types[i] = 0;
+
+    view->droppableTypes = types;
+
+    W_SetXdndAwareProperty(W_VIEW_SCREEN(view), view, types, typeCount);
+}
+
+
+void
+WMUnregisterViewDraggedTypes(WMView *view)
+{
+    if (view->droppableTypes != NULL)
+	free(view->droppableTypes);
+    view->droppableTypes = NULL;
+}
+
+/***********************************************************************/
+
+void
+WMSetViewDragDestinationProcs(WMView *view, WMDragDestinationProcs *procs)
+{
+    if (view->dragDestinationProcs == NULL) {
+	free(view->dragDestinationProcs);
+	view->dragDestinationProcs = wmalloc(sizeof(WMDragDestinationProcs));
+    }
+    *view->dragDestinationProcs = *procs;
+    
+    /*XXX fill in non-implemented stuffs */
+}
+
+
+
+
+