/******************************************************************************
*
* Copyright (c) 2014 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer.
*
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
* DragContext.h
*
*****************************************************************************/
#pragma once
#include <oz++/motif/View.h>
#include <oz++/motif/Selection.h>
#include <Xm/DragDrop.h>
namespace OZ {
class DragContext :public CommonObject {
private:
Widget dragContext;
View* caller;
Args* args;
Action* dragAction;
static Boolean commonConvertProc(Widget dragcon, Atom* select,
Atom* target, Atom* type, XtPointer* value,
unsigned long* length, int* format)
{
printf("commonConvertProc\n");
Action* action = NULL;
Selection selection(dragcon, select, target,
type, value, length, format);
Arg arg[1];
XtSetArg(arg[0], XmNclientData, &action);
XtGetValues(dragcon, arg, 1);
if(action) {
action -> call(selection);
}
return selection.getResult();
}
public:
DragContext(View* caller1, Args* args1)
{
caller = caller1;
dragContext = NULL;
args = new Args();
args -> copy(args1);
args -> set(XmNconvertProc,(XtArgVal)commonConvertProc);
//(XtArgVal)&DragContext::commonConvertProc);
dragAction = NULL;
}
~DragContext()
{
delete dragAction;
delete args;
}
void registerConvertProc(CommonObject* callee, Callback callback,
XtPointer data)
{
printf("registerConvertProc\n");
if(dragAction == NULL) {
dragAction = new Action(caller, callee, callback, data);
args -> set(XmNclientData, (XtArgVal)dragAction);
}
}
void start(Action* action)
{
printf("DragContext::start\n");
dragContext = XmDragStart(caller->getWidget(),
(XEvent*)action->getCallData(),
args->getArgList(), args->count());
}
};
}