OZ++ Sample: FileDragSource |
/******************************************************************************
*
* Copyright (c) 2015 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
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*
* FileDragSource.cpp
*
*****************************************************************************/
#include <oz++/motif/ApplicationView.h>
#include <oz++/motif/SashlessPanedWindow.h>
#include <oz++/motif/PushButton.h>
#include <oz++/motif/TextField.h>
#include <oz++/motif/FileSelectionBox.h>
namespace OZ {
class MainView :public ApplicationView {
private:
SmartPtr<SashlessPanedWindow> panedw;
SmartPtr<TextField> textf;
SmartPtr<FileSelectionBox> fsb;
StringT<char> fileName;
Atom TARGETS;
Atom MOTIF_EXPORT_TARGETS;
Atom COMPOUND_TEXT;
bool selected;
void activate(Action& action)
{
StringT<char> string;
textf -> getString(string);
printf("%s \n", (const char*)string);
fsb -> update((const char*)string);
selected = false;
fileName = "";
}
void select(Action& action)
{
XmContainerSelectCallbackStruct* cbs =
(XmContainerSelectCallbackStruct*)action.getCallData();
const char* folderName = fsb -> getFolderName();
printf("select %d folderName=%s\n",
cbs ->selected_item_count, folderName);
int itemCount = cbs -> selected_item_count;
Container* container = fsb -> getContainer();
if (itemCount != 1) {
printf("Please specify one file\n");
return;
}
for (int i = 0; i < itemCount; i++) {
Widget w = cbs->selected_items[i];
if (w == NULL) {
continue;
}
IconGadget* gadget = (IconGadget*)container->lookup(w);
if (gadget) {
XmString xms;
gadget -> get(XmNlabelString, &xms);
StringT<char> filename;
CompoundString cs(xms, filename);
const char* name = (const char*)filename;
char fullPath[PATH_MAX];
selected = true;
sprintf (fullPath, "%s/%s\n", (const char*)folderName, name);
printf("selected %s\n", fullPath);
fileName = fullPath;
}
}
}
// The default convertProc of XmContainerWidget class seems to
// provide a filename only withoug path.
// The following convertCallback will provide a fullpath name.
void convertCallback(Action& action)
{
printf("MainView::convertCallback \n");
XmConvertCallbackStruct* ccs = (XmConvertCallbackStruct*)action.getCallData();
if ((ccs->target == MOTIF_EXPORT_TARGETS) ||
(ccs->target == TARGETS)) {
Atom* targs = (Atom *) XtMalloc(sizeof(Atom) );
targs[0] = COMPOUND_TEXT;
ccs->value = (XtPointer) targs;
ccs->type = XA_ATOM;
ccs->length = 1;
ccs->format = 32;
ccs->status = XmCONVERT_MERGE;
}
else if (ccs->target == COMPOUND_TEXT) {
//printf("COMPOUND_TEXT \n");
const char* ctext = (const char*)fileName;
char* passtext = strdup(ctext);
int len = 0;
if (passtext) {
len = strlen(passtext);
}
//printf("selected IconGaget %s\n", ctext);
ccs->value = (XtPointer)passtext;
ccs->type = XA_STRING;
ccs->length = len; //strlen(passtext);
ccs->format = 8;
ccs->status = XmCONVERT_DONE;
}
else {
printf("Unexpected target\n");
ccs->status = XmCONVERT_REFUSE;
}
}
virtual void motionNotify(Event& event)
{
// try {
// FileAttributes attr((const char*)fileName);
// Boolean isDirectory = attr.isDirectory();
XEvent* xe = event.getXEvent();
if (selected == true &&
// isDirectory == False &&
xe -> type == MotionNotify &&
xe -> xmotion.state & Button1Mask) {
Args ar;
ar.set(XmNdragOperations, XmDROP_COPY|XmDROP_MOVE);
fsb -> getContainer()
-> dragSource(NULL, xe, ar);
printf("Container has been set as a dragSource\n");
}
//} catch (Exception& ex) {
//caught(ex);
//}
}
public:
MainView(Application& applet, const char* name, Args& args)
:ApplicationView(applet, name, args),
fileName(""),
selected(false)
{
Display* display = getDisplay();
TARGETS = XInternAtom(display, (char*)"TARGETS", False);
MOTIF_EXPORT_TARGETS = XInternAtom(display, XmS_MOTIF_EXPORT_TARGETS, False);
COMPOUND_TEXT = XmInternAtom(display, (char*)"COMPOUND_TEXT", False);
Args ar;
ar.set(XmNorientation, XmVERTICAL);
panedw = new SashlessPanedWindow(this, "", ar);
ar.reset();
textf = new TextField(panedw, "", ar);
ar.reset();
ar.set(XmNfolderPixmapFile, "../xpm/folder.xpm");
ar.set(XmNfilePixmapFile, "../xpm/file.xpm");
ar.set(XmNincludeFolder, False);
fsb = new FileSelectionBox(panedw, "FileSelectionBox", ar);
const char* rootFolder = getenv("HOME");
if (args.has(XmNrootFolderName)) {
rootFolder = (const char*)args.get(XmNrootFolderName);
}
fsb -> buildFileList(rootFolder);
Container* container = fsb -> getContainer();
container -> addCallback(XmNselectionCallback, this,
(Callback)&MainView::select, NULL);
container -> addEventHandler(ButtonPressMask|ButtonMotionMask, this,
(Handler)&MainView::motionNotify, NULL);
container -> addCallback(XmNconvertCallback, this,
(Callback)&MainView::convertCallback, NULL);
textf -> setString(rootFolder);
textf -> addCallback(XmNactivateCallback, this,
(Callback)&MainView::activate, NULL);
}
~MainView()
{
}
};
}
//
int main(int argc, char** argv)
{
try {
const char* rootFolder = getenv("HOME");
printf("RootFolder %s\n", rootFolder);
if (argc == 2) {
rootFolder = argv[1];
}
const char* appclass = argv[0];
Application applet(appclass, argc, argv);
Args args;
args.set(XmNwidth, 660);
args.set(XmNheight,400);
args.set(XmNrootFolderName, rootFolder);
MainView view(applet, argv[0], args);
view.realize();
applet.run();
} catch (Exception& ex) {
caught(ex);
}
return 0;
}