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/*
*
* Copyright (C) 2000 Silicon Graphics, Inc. All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* Further, this software is distributed without any warranty that it is
* free of the rightful claim of any third person regarding infringement
* or the like. Any license provided herein, whether implied or
* otherwise, applies only to this software file. Patent licenses, if
* any, provided herein do not apply to combinations of this program with
* other software, or any other product whatsoever.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
* Mountain View, CA 94043, or:
*
* http://www.sgi.com
*
* For further information regarding this notice, see:
*
* http://oss.sgi.com/projects/GenInfo/NoticeExplan/
*
*/
/*
* Copyright (C) 1991-93 Silicon Graphics, Inc.
*
_______________________________________________________________________
______________ S I L I C O N G R A P H I C S I N C . ____________
|
| $Revision: 1.5 $
|
| Classes:
| SoXtMaterialList
|
| Author(s): David Mott
|
|
______________ S I L I C O N G R A P H I C S I N C . ____________
_______________________________________________________________________
*/
#include <inttypes.h>
#include <stdio.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <dirent.h>
#include <stdlib.h>
#include <X11/StringDefs.h>
#include <Xm/Xm.h>
#include <Xm/CascadeBG.h>
#include <Xm/Form.h>
#include <Xm/List.h>
#include <Xm/RowColumn.h>
#include <Xm/ToggleB.h>
#include <Xm/ToggleBG.h>
#include <Inventor/SoDB.h>
#include <Inventor/misc/SoCallbackList.h>
#include <Inventor/Xt/SoXt.h>
#include <Inventor/Xt/SoXtMaterialList.h>
#include <Inventor/actions/SoSearchAction.h>
#include <Inventor/nodes/SoMaterial.h>
#include <Inventor/errors/SoDebugError.h>
static char *bogusFile = "<none>";
#define TOGGLE_ON(BUTTON) \
XmToggleButtonSetState((Widget) BUTTON, TRUE, FALSE);
#define TOGGLE_OFF(BUTTON) \
XmToggleButtonSetState((Widget) BUTTON, FALSE, FALSE);
//
// returns true if the passed file is a subdirectory in the current directory.
// (call chdir() before calling this).
//
static SbBool
isDirectory(char *file)
{
struct stat buf;
SbBool is_dir = FALSE;
if (stat(file, &buf) == 0)
if ((buf.st_mode & S_IFMT) == S_IFDIR)
is_dir = 1;
return (is_dir);
}
//
// this returns TRUE if the file contains a material
//
static SbBool
isMtlFile(char *filename)
{
// Make sure it's not . or ..
if (filename[0] == '.') return FALSE;
// read the file, search for SoMaterial
SbBool fileHasMtl = FALSE;
SoInput in;
SoNode *root;
if (in.openFile(filename)) {
if (SoDB::read(&in, root)) {
root->ref();
// find the material node
SoSearchAction sa;
sa.setType(SoMaterial::getClassTypeId());
sa.apply(root);
fileHasMtl = (sa.getPath() != NULL);
root->unref();
}
}
return (fileHasMtl);
}
//
// Fill in palette with material files
//
static void
createStringTable(char *dir, XmString **table, int *size)
{
XmString *tbl;
int numFiles = 0;
// build the list of files
struct dirent *direntry;
DIR *dirp;
char *f;
if (dirp = opendir(dir)) {
char currentDir[MAXPATHLEN];
getcwd(currentDir, MAXPATHLEN-1);
chdir(dir);
// count the number of files so we can allocate space in the str table
while (direntry = readdir(dirp)) {
f = direntry->d_name;
if (isMtlFile(f))
numFiles++;
}
(void) closedir(dirp);
// now build the string table
if (numFiles != 0) {
// get space for the table
tbl = (XmString *) malloc(numFiles * sizeof(XmString));
*table = tbl;
*size = numFiles;
// fill the table in
dirp = opendir(dir);
chdir(dir);
while (direntry = readdir(dirp)) {
f = direntry->d_name;
if (isMtlFile(f)) {
*tbl = SoXt::encodeString(f);
tbl++;
}
}
(void) closedir(dirp);
}
else {
// get space for one entry - bogusFile
tbl = (XmString *) malloc(sizeof(XmString));
*table = tbl;
*size = 1;
*tbl = SoXt::encodeString(bogusFile);
}
chdir(currentDir); // back to our working directory
}
#ifdef DEBUG
else {
SoDebugError::post("SoXtMaterialList::createStringTable",
"Cannot open directory %s.", dir);
}
#endif
}
static void
destroyStringTable(XmString *table, int size)
{
int i;
// nuke the table entries
for (i = 0; i < size; i++)
XmStringFree(table[i]);
free(table);
}
////////////////////////////////////////////////////////////////////////
//
// Public constructor - build the widget right now
//
SoXtMaterialList::SoXtMaterialList(
Widget parent,
const char *name,
SbBool buildInsideParent,
const char *dir)
: SoXtComponent(
parent,
name,
buildInsideParent)
//
////////////////////////////////////////////////////////////////////////
{
// In this case, this component is what the app wants, so buildNow = TRUE
constructorCommon(dir, TRUE);
}
////////////////////////////////////////////////////////////////////////
//
// SoEXTENDER constructor - the subclass tells us whether to build or not
//
SoXtMaterialList::SoXtMaterialList(
Widget parent,
const char *name,
SbBool buildInsideParent,
const char *dir,
SbBool buildNow)
: SoXtComponent(
parent,
name,
buildInsideParent)
//
////////////////////////////////////////////////////////////////////////
{
// In this case, this component may be what the app wants,
// or it may want a subclass of this component. Pass along buildNow
// as it was passed to us.
constructorCommon(dir, buildNow);
}
////////////////////////////////////////////////////////////////////////
//
// Called by the constructors
//
// private
//
void
SoXtMaterialList::constructorCommon(const char *dir, SbBool buildNow)
//
//////////////////////////////////////////////////////////////////////
{
setClassName("SoXtMaterialList");
if (dir != NULL)
materialDir = strdup(dir);
else materialDir = strdup(IVMATERIALSDIR);
callbackList = new SoCallbackList;
curPalette = -1;
// Build the widget tree, and let SoXtComponent know about our base widget.
if (buildNow) {
Widget w = buildWidget(getParentWidget());
if (w != NULL)
setBaseWidget(w);
}
}
////////////////////////////////////////////////////////////////////////
//
// Destructor.
//
SoXtMaterialList::~SoXtMaterialList()
//
////////////////////////////////////////////////////////////////////////
{
delete callbackList;
if (materialDir != NULL) free(materialDir);
for (int i = 0; i < mtlPalettes.getLength(); i++)
free((char *) mtlPalettes[i]);
}
////////////////////////////////////////////////////////////////////////
//
// Get the dir name from the env variable, and set up the palettes.
// This returns TRUE if it did so without error, and sets the member
// variable curPalette to 0. Else this returns FALSE and sets
// curPalette to -1.
//
// private
//
SbBool
SoXtMaterialList::setupPalettes()
//
////////////////////////////////////////////////////////////////////////
{
// see if SO_MATERIAL_DIR has changed.
char *envDir = getenv("SO_MATERIAL_DIR");
if (envDir != NULL) {
if ((strcmp(envDir, materialDir) == 0) && (curPalette != -1))
return TRUE; // env dir is same as current dir, palette is already OK
if (materialDir != NULL) free(materialDir);
materialDir = strdup(envDir);
}
else if (curPalette != -1)
return TRUE; // env dir not set, but palette is already OK
// read the palette!
curPalette = 0;
// build the list of directories
struct dirent *direntry;
DIR *dirp;
char *f;
if (dirp = opendir(materialDir)) {
char currentDir[MAXPATHLEN];
getcwd(currentDir, MAXPATHLEN-1);
chdir(materialDir);
while (direntry = readdir(dirp)) {
f = direntry->d_name;
/* hide '.' files */
if (f[0] != '.') {
if (isDirectory(f)) {
mtlPalettes.append(strdup(f));
}
}
}
(void) closedir(dirp);
chdir(currentDir); // back to our working directory
}
else {
#ifdef DEBUG
SoDebugError::post("SoXtMaterialList::setupPalettes",
"Cannot open directory %s. Try setting the environment variable SO_MATERIAL_DIR to a directory which has material files in it.", materialDir);
#endif
curPalette = -1;
}
return (curPalette != -1); // if not -1, return TRUE
}
////////////////////////////////////////////////////////////////////////
//
// This builds the pulldown menu, using materialDir as the parent
// directory.
//
// usage: private
//
Widget
SoXtMaterialList::buildPulldownMenu(Widget parent)
//
////////////////////////////////////////////////////////////////////////
{
Widget menubar, pulldown;
Widget submenu;
Arg args[5];
int n;
n = 0;
XtSetArg(args[n], XmNuserData, this); n++;
menubar = XmCreateMenuBar(parent, "menuBar", NULL, 0);
pulldown = XmCreatePulldownMenu(menubar, "controlPulldown", args, n);
n = 0;
XtSetArg(args[n], XmNsubMenuId, pulldown); n++;
submenu = XtCreateManagedWidget("Palettes",
xmCascadeButtonGadgetClass,
menubar, args, n);
#define MENU_ITEM(BUTTON,NAME,KONST) \
n = 0; \
XtSetArg(args[n], XmNuserData, this); n++; \
XtSetArg(args[n], XmNindicatorType, XmONE_OF_MANY); n++; \
BUTTON = XtCreateManagedWidget(NAME, \
xmToggleButtonGadgetClass, \
pulldown,args,n); \
XtAddCallback(BUTTON, XmNvalueChangedCallback, \
(XtCallbackProc) SoXtMaterialList::menuPick, \
(XtPointer) KONST);
// create the menu items ???pass in the dir names!
Widget button;
menuItems.truncate(0);
for (int i = 0; i < mtlPalettes.getLength(); i++) {
char *dir = (char *) mtlPalettes[i];
MENU_ITEM(button, dir, (unsigned long) i)
menuItems.append(button); // store these buttons for future reference
}
#undef MENU_ITEM
if (menuItems.getLength() == 0) {
#ifdef DEBUG
SoDebugError::post("SoXtMaterialList::buildPulldownMenu",
"Directory %s has no material palettes.", materialDir);
#endif
curPalette = -1;
}
XtManageChild(submenu);
// set the current palette toggle to on
if (curPalette != -1)
TOGGLE_ON(menuItems[curPalette]);
return menubar;
}
////////////////////////////////////////////////////////////////////////
//
// Fill in the Motif list with file names from the current palette.
//
// usage: virtual private
//
void
SoXtMaterialList::fillInMaterialList()
//
////////////////////////////////////////////////////////////////////////
{
if (curPalette == -1)
return;
XmString *table;
int count;
Arg args[2];
int n;
char curdir[256];
// create a string table for the current palette directory
sprintf(curdir, "%s/%s", materialDir, (char *)mtlPalettes[curPalette]);
createStringTable(curdir, &table, &count);
n = 0;
XtSetArg(args[n], XmNitems, table); n++;
XtSetArg(args[n], XmNitemCount, count); n++;
XtSetValues(mtlList, args, n);
/* free our local table - XmCreateScrolledList made a copy */
destroyStringTable(table, count);
}
////////////////////////////////////////////////////////////////////////
//
// This routine builds all the widgets, sets up callback routines,
// and does the layout using motif.
//
// usage: protected
//
Widget
SoXtMaterialList::buildWidget(Widget parent)
//
////////////////////////////////////////////////////////////////////////
{
// setup palette if needed. return NULL on error.
if (! setupPalettes())
return NULL;
Widget menubar;
int n;
Arg wargs[10];
// create the top level widget
Widget widget = XtCreateWidget(getWidgetName(),xmFormWidgetClass,parent,NULL,0);
// build the subcomponents
menubar = buildPulldownMenu(widget);
if (curPalette == -1) {
XtDestroyWidget(menubar);
XtDestroyWidget(widget);
widget = NULL;
return NULL;
}
XmString *table;
int count;
char curdir[256];
// create a string table for the current palette directory
sprintf(curdir, "%s/%s", materialDir, (char *)mtlPalettes[curPalette]);
createStringTable(curdir, &table, &count);
// Layout
n = 0;
XtSetArg(wargs[n], XmNtopAttachment, XmATTACH_FORM); n++;
XtSetArg(wargs[n], XmNleftAttachment, XmATTACH_FORM); n++;
XtSetArg(wargs[n], XmNrightAttachment, XmATTACH_FORM); n++;
XtSetValues(menubar, wargs, n);
//??? BUG IN LIST WIDGET - I cannot build the widget, and then
// call XtSetValues to set up the layout. I must do it all at once!
// This seems to me like a bug in motif!
n = 0;
XtSetArg(wargs[n], XmNitems, table); n++;
XtSetArg(wargs[n], XmNitemCount, count); n++;
XtSetArg(wargs[n], XmNvisibleItemCount, 8); n++;
XtSetArg(wargs[n], XmNselectionPolicy, XmSINGLE_SELECT); n++;
XtSetArg(wargs[n], XmNbottomAttachment, XmATTACH_FORM); n++;
XtSetArg(wargs[n], XmNleftAttachment, XmATTACH_FORM); n++;
XtSetArg(wargs[n], XmNrightAttachment, XmATTACH_FORM); n++;
XtSetArg(wargs[n], XmNtopAttachment, XmATTACH_WIDGET); n++;
XtSetArg(wargs[n], XmNtopWidget, menubar); n++;
//???XtSetValues(mtlList, wargs, n);
mtlList = XmCreateScrolledList(widget, "materialList", wargs, n);
XtAddCallback(mtlList,
XmNsingleSelectionCallback,
(XtCallbackProc) SoXtMaterialList::listPick,
(XtPointer) this);
/* free our local table - XmCreateScrolledList made a copy */
destroyStringTable(table, count);
/* manage those children! */
XtManageChild(mtlList);
XtManageChild(menubar);
return widget;
}
////////////////////////////////////////////////////////////////////////
//
// Called by Xt when a menu item is picked.
//
// Use: static private
//
void
SoXtMaterialList::menuPick(Widget w, int id, XtPointer)
//
////////////////////////////////////////////////////////////////////////
{
SoXtMaterialList *ml;
Arg args[1];
XtSetArg(args[0], XmNuserData, &ml);
XtGetValues(w, args, 1);
#ifdef DEBUG
if (ml == NULL) {
SoDebugError::post("SoXtMaterialList::menuPick",
"ml is NULL");
return;
}
#endif
if (id != ml->curPalette) {
// toggle the previous current palette item to OFF
TOGGLE_OFF(ml->menuItems[ml->curPalette]);
ml->curPalette = id;
// and fill in the mtlList with the new current palette
ml->fillInMaterialList();
}
// make sure the current palette item is set to ON
TOGGLE_ON(ml->menuItems[ml->curPalette]);
}
////////////////////////////////////////////////////////////////////////
//
// Called by Xt when a list item is picked.
//
// Use: static private
//
void
SoXtMaterialList::listPick(Widget, SoXtMaterialList *ml, XtPointer p)
//
////////////////////////////////////////////////////////////////////////
{
XmListCallbackStruct *listdata = (XmListCallbackStruct *) p;
char *name;
char filename[256];
name = SoXt::decodeString(listdata->item);
if (strcmp(name, bogusFile) == 0)
return;
// construct the file name from all our information
sprintf(filename, "%s/%s/%s",
ml->materialDir,
(char *) ml->mtlPalettes[ml->curPalette],
name);
// read the file, search for SoMaterial, and pass data to callbacks
SoInput in;
SoNode *root;
if (in.openFile(filename)) {
if (SoDB::read(&in, root)) {
root->ref();
// find the material node
SoSearchAction sa;
SoFullPath *fullPath;
// Look for existing camera
sa.setType(SoMaterial::getClassTypeId());
sa.apply(root);
fullPath = (SoFullPath *) sa.getPath();
if (fullPath != NULL) {
// invoke the callbacks with this material!
fullPath->ref();
SoMaterial *mtl = (SoMaterial *) fullPath->getTail();
ml->callbackList->invokeCallbacks(mtl);
fullPath->unref();
}
#ifdef DEBUG
else {
SoDebugError::post("SoXtMaterialList::listPick",
"%s has no Material node.", filename);
}
#endif
root->unref();
}
#ifdef DEBUG
else {
SoDebugError::post("SoXtMaterialList::listPick",
"Cannot read file %s.", filename);
}
#endif
}
#ifdef DEBUG
else {
SoDebugError::post("SoXtMaterialList::listPick",
"Cannot open file %s.", filename);
}
#endif
free(name);
}
//
// redefine those generic virtual functions
//
const char *
SoXtMaterialList::getDefaultWidgetName() const
{ return "SoXtMaterialList"; }
const char *
SoXtMaterialList::getDefaultTitle() const
{ return "Material List"; }
const char *
SoXtMaterialList::getDefaultIconTitle() const
{ return "Mat List"; }
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