QvisExpressionsWindow.C 32.4 KB
Newer Older
hrchilds's avatar
hrchilds committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
/*****************************************************************************
*
* Copyright (c) 2000 - 2006, The Regents of the University of California
* Produced at the Lawrence Livermore National Laboratory
* All rights reserved.
*
* This file is part of VisIt. For details, see http://www.llnl.gov/visit/. The
* full copyright notice is contained in the file COPYRIGHT located at the root
* of the VisIt distribution or at http://www.llnl.gov/visit/copyright.html.
*
* Redistribution  and  use  in  source  and  binary  forms,  with  or  without
* modification, are permitted provided that the following conditions are met:
*
*  - Redistributions of  source code must  retain the above  copyright notice,
*    this list of conditions and the disclaimer below.
*  - Redistributions in binary form must reproduce the above copyright notice,
*    this  list of  conditions  and  the  disclaimer (as noted below)  in  the
*    documentation and/or materials provided with the distribution.
*  - Neither the name of the UC/LLNL nor  the names of its contributors may be
*    used to  endorse or  promote products derived from  this software without
*    specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT  HOLDERS AND CONTRIBUTORS "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  REGENTS  OF  THE  UNIVERSITY OF
* CALIFORNIA, THE U.S.  DEPARTMENT  OF  ENERGY OR CONTRIBUTORS 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.
*
*****************************************************************************/

hrchilds's avatar
hrchilds committed
38
#include <QvisExpressionsWindow.h>
hrchilds's avatar
hrchilds committed
39

hrchilds's avatar
hrchilds committed
40
41
#include <Expression.h>
#include <ExpressionList.h>
hrchilds's avatar
hrchilds committed
42
43
#include <ViewerProxy.h>

hrchilds's avatar
hrchilds committed
44
45
46
47
48
49
50
51
#include <qapplication.h>
#include <qcheckbox.h>
#include <qcombobox.h>
#include <qgroupbox.h>
#include <qlabel.h>
#include <qlayout.h>
#include <qlineedit.h>
#include <qlistbox.h>
hrchilds's avatar
hrchilds committed
52
53
#include <qmultilineedit.h>
#include <qpopupmenu.h>
hrchilds's avatar
hrchilds committed
54
#include <qpushbutton.h>
hrchilds's avatar
hrchilds committed
55
#include <qsplitter.h>
hrchilds's avatar
hrchilds committed
56

hrchilds's avatar
hrchilds committed
57
#include <QNarrowLineEdit.h>
hrchilds's avatar
hrchilds committed
58
#include <QvisVariableButton.h>
hrchilds's avatar
hrchilds committed
59

hrchilds's avatar
hrchilds committed
60
61
62
#define STDMIN(A,B) (((A)<(B)) ? (A) : (B))
#define STDMAX(A,B) (((A)<(B)) ? (B) : (A))

hrchilds's avatar
hrchilds committed
63
64
65
66
67
68
69
70
71
72
73
// ****************************************************************************
//  Expression Lists
//
//  Purpose:
//    Categorized expression lists data.  These structures are self-contained
//    and require the terminating nulls to be parsed correctly.  Keep in mind
//    that 
//
//  Programmer:  Jeremy Meredith
//  Creation:    October 23, 2004
//
hrchilds's avatar
hrchilds committed
74
75
76
77
78
//  Modifications:
//
//    Hank Childs, Sun Jan  2 15:32:00 PST 2005
//    Added curl, divergence, Laplacian, materror.
//
hrchilds's avatar
hrchilds committed
79
80
81
//    Hank Childs, Thu Jan 20 15:51:16 PST 2005
//    Added side volume, resrad.
//
hrchilds's avatar
hrchilds committed
82
83
84
85
86
//    Hank Childs, Thu Jun 30 15:00:42 PDT 2005
//    Added polar_radius, polar_theta, polar_phi, cylindrical_radius,
//    cylindrical_theta, cylindrical, mod, round, ceil, floor, zoneid,
//    nodeid, global_zoneid, and global_nodeid.
//
hrchilds's avatar
hrchilds committed
87
88
89
//    Hank Childs, Tue Aug 16 09:05:03 PDT 2005
//    Added image processing category.
//
hrchilds's avatar
hrchilds committed
90
91
92
//    Hank Childs, Wed Sep 21 17:31:59 PDT 2005
//    Added external_node, surface normal, min/max edge length/side volume.
//
hrchilds's avatar
hrchilds committed
93
94
95
//    Hank Childs, Sun Jan 22 12:47:29 PST 2006
//    Renamed comparison to relational.  Added new category for comparison.
//
hrchilds's avatar
hrchilds committed
96
97
98
//    Hank Childs, Tue Feb 14 14:06:20 PST 2006
//    Added ijk_gradient.
//
hrchilds's avatar
hrchilds committed
99
100
101
//    Hank Childs, Sun Mar  5 16:03:38 PST 2006
//    Added time.
//
hrchilds's avatar
hrchilds committed
102
103
104
//    Hank Childs, Mon Mar 13 16:48:23 PST 2006
//    Added minimum and maximum.
//
hrchilds's avatar
hrchilds committed
105
106
107
108
//    Hank Childs, Thu May 11 12:45:39 PDT 2006
//    Added mean_curvature, gauss_curvature, compose vector, and compose 
//    tensor.
//
hrchilds's avatar
hrchilds committed
109
110
111
//    Hank Childs, Fri Oct  6 15:47:04 PDT 2006
//    Added abel_inversion.
//
hrchilds's avatar
hrchilds committed
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
// ****************************************************************************
struct ExprNameList
{
    const char *name;
    const char **list;
};

const char *expr_meshquality[] = {
    "aspect",
    "aspect_gamma",
    "condition",
    "degree",
    "diagonal",
    "dimension",
    "jacobian",
    "largest_angle",
hrchilds's avatar
hrchilds committed
128
129
130
131
    "max_edge_length",
    "max_side_volume",
    "min_edge_length",
    "min_side_volume",
hrchilds's avatar
hrchilds committed
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
    "neighbor",
    "node_degree",
    "oddy",
    "relative_size",
    "scaled_jacobian",
    "shape",
    "shape_and_size",
    "shear",
    "skew",
    "smallest_angle",
    "stretch",
    "taper",
    "warpage",
    NULL
};

const char *expr_math[] = {
    "abs",
hrchilds's avatar
hrchilds committed
150
151
    "ceil",
    "floor",
hrchilds's avatar
hrchilds committed
152
153
    "ln",
    "log10",
hrchilds's avatar
hrchilds committed
154
155
    "max",
    "min",
hrchilds's avatar
hrchilds committed
156
157
    "mod",
    "round",
hrchilds's avatar
hrchilds committed
158
159
160
161
162
163
164
165
166
167
    "sqr",
    "sqrt",
    "+",
    "-",
    "*",
    "/",
    "^",
    NULL
};

hrchilds's avatar
hrchilds committed
168
const char *expr_relational[] = {
hrchilds's avatar
hrchilds committed
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
    "eq",
    "ge",
    "gt",
    "le",
    "lt",
    "ne",
    NULL
};

const char *expr_conditional[] = {
    "if",
    NULL
};

const char *expr_logical[] = {
    "and",
    "not",
    "or",
    NULL
};

const char *expr_trig[] = {
    "acos",
    "asin",
    "atan",
    "cos",
    "deg2rad",
    "rad2deg",
    "sin",
    "tan",
    NULL
};

const char *expr_vector[] = {
    "cross",
    "dot",
    "magnitude",
    NULL
};

const char *expr_tensor[] = {
    "determinant",
    "effective_tensor",
    "eigenvalue",
    "eigenvector",
    "inverse",
    "principal_deviatoric_tensor",
    "principal_tensor",
    "tensor_maximum_shear",
    "trace",
    NULL
};

hrchilds's avatar
hrchilds committed
222
223
224
225
226
227
const char *expr_array[] = {
    "array_compose",
    "array_decompose",
    NULL
};

hrchilds's avatar
hrchilds committed
228
const char *expr_materials[] = {
hrchilds's avatar
hrchilds committed
229
    "materror",
hrchilds's avatar
hrchilds committed
230
231
232
233
234
235
236
237
238
    "matvf",
    "nmats",
    "specmf",
    NULL
};

const char *expr_mesh[] = {
    "area",
    "coord",
hrchilds's avatar
hrchilds committed
239
240
241
    "cylindrical",
    "cylindrical_radius",
    "cylindrical_theta",
hrchilds's avatar
hrchilds committed
242
    "external_node",
hrchilds's avatar
hrchilds committed
243
244
245
    "global_nodeid",
    "global_zoneid",
    "nodeid",
hrchilds's avatar
hrchilds committed
246
    "polar",
hrchilds's avatar
hrchilds committed
247
248
249
    "polar_radius",
    "polar_theta",
    "polar_phi",
hrchilds's avatar
hrchilds committed
250
251
252
    "revolved_surface_area",
    "revolved_volume",
    "volume",
hrchilds's avatar
hrchilds committed
253
    "zoneid",
hrchilds's avatar
hrchilds committed
254
255
256
257
    NULL
};

const char *expr_misc[] = {
hrchilds's avatar
hrchilds committed
258
259
    "curl",
    "divergence",
hrchilds's avatar
hrchilds committed
260
    "gauss_curvature",
hrchilds's avatar
hrchilds committed
261
    "gradient",
hrchilds's avatar
hrchilds committed
262
263
    "ij_gradient",
    "ijk_gradient",
hrchilds's avatar
hrchilds committed
264
    "Laplacian",
hrchilds's avatar
hrchilds committed
265
    "mean_curvature",
hrchilds's avatar
hrchilds committed
266
    "recenter",
hrchilds's avatar
hrchilds committed
267
    "resrad",
hrchilds's avatar
hrchilds committed
268
269
270
    "surface_normal",
    "   point_surface_normal",
    "   cell_surface_normal",
hrchilds's avatar
hrchilds committed
271
    "time",
hrchilds's avatar
hrchilds committed
272
273
274
    NULL
};

hrchilds's avatar
hrchilds committed
275
const char *expr_imageprocessing[] = {
hrchilds's avatar
hrchilds committed
276
    "abel_inversion",
hrchilds's avatar
hrchilds committed
277
278
279
280
281
282
    "conservative_smoothing",
    "mean_filter",
    "median_filter",
    NULL
};

hrchilds's avatar
hrchilds committed
283
284
285
286
287
288
289
290
const char *expr_comparison[] = {
    "conn_cmfe",
    "pos_cmfe",
    "symm_plane",
    "symm_transform",
    NULL
};

hrchilds's avatar
hrchilds committed
291
292
ExprNameList exprlist[] =
{
hrchilds's avatar
hrchilds committed
293
294
295
296
297
298
299
    {"Math",             expr_math},
    {"Vector",           expr_vector},
    {"Tensor",           expr_tensor},
    {"Array",            expr_array},
    {"Material",         expr_materials},
    {"Mesh",             expr_mesh},
    {"Mesh Quality",     expr_meshquality},
hrchilds's avatar
hrchilds committed
300
    {"Comparison",       expr_comparison},
hrchilds's avatar
hrchilds committed
301
302
303
    {"Image Processing", expr_imageprocessing},
    {"Miscellaneous",    expr_misc},
    {"Trigonometry",     expr_trig},
hrchilds's avatar
hrchilds committed
304
    {"Relational",       expr_relational},
hrchilds's avatar
hrchilds committed
305
306
    {"Conditional",      expr_conditional},
    {"Logical",          expr_logical},
hrchilds's avatar
hrchilds committed
307
    {NULL,NULL}
hrchilds's avatar
hrchilds committed
308
309
};

hrchilds's avatar
hrchilds committed
310
311
312
313
314
315
316
317
318
319
// ****************************************************************************
// Method: QvisExpressionsWindow::QvisExpressionsWindow
//
// Purpose: 
//   This is the constructor for the QvisExpressionsWindow class.
//
// Arguments:
//   exprList_  The ExpressionList subject to observe
//   
//
hrchilds's avatar
hrchilds committed
320
321
// Programmer: Jeremy Meredith
// Creation:   October 10, 2004
hrchilds's avatar
hrchilds committed
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
//
// ****************************************************************************
QvisExpressionsWindow::QvisExpressionsWindow(
    ExpressionList *exprList_, const char *caption,
    const char *shortName, QvisNotepadArea *notepad) :
    QvisPostableWindowObserver(exprList_, caption, shortName, notepad,
                               QvisPostableWindowObserver::ApplyButton,
                               false)
{
    exprList = exprList_;
}

// ****************************************************************************
// Method: QvisExpressionsWindow::~QvisExpressionsWindow
//
// Purpose: 
//   Destructor for the QvisExpressionsWindow class.
//
hrchilds's avatar
hrchilds committed
340
341
// Programmer: Jeremy Meredith
// Creation:   October 10, 2004
hrchilds's avatar
hrchilds committed
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
//
// Modifications:
//   
// ****************************************************************************
QvisExpressionsWindow::~QvisExpressionsWindow()
{
    exprList = NULL;
}

// ****************************************************************************
// Method: QvisExpressionsWindow::CreateWindowContents
//
// Purpose: 
//   Creates the widgets for the window.
//
hrchilds's avatar
hrchilds committed
357
358
359
360
361
// Programmer: Jeremy Meredith
// Creation:   October 10, 2004
//
// Note: as of writing, unsure if I want to use the splitter or not.
//       We should pick one of the two methods eventually.
hrchilds's avatar
hrchilds committed
362
363
//
// Modifications:
hrchilds's avatar
hrchilds committed
364
365
366
367
368
369
370
371
//    Jeremy Meredith, Sat Oct 23 11:50:35 PDT 2004
//    Changed the layout a bit: use group boxes with titles for the two
//    panes, change to use splitters, change the resize proportions,
//    move the "hidden" toggle to the bottom and change its sense,
//    move "insert function" to the right side and group expressions into
//    categorized submenus, reword some other labels to make them more
//    descriptive.
//
hrchilds's avatar
hrchilds committed
372
373
374
//    Brad Whitlock, Thu Dec 9 10:50:12 PDT 2004
//    I added a variable button that lets us insert variables.
//
hrchilds's avatar
hrchilds committed
375
376
377
//    Hank Childs, Thu Jul 21 11:12:43 PDT 2005
//    Add support for array mesh variables.
//
hrchilds's avatar
hrchilds committed
378
379
380
//    Kathleen Bonnell, Thu Aug  3 08:42:33 PDT 2006 
//    Changed numtypes to 7 to support CurveMeshVar.
//
hrchilds's avatar
hrchilds committed
381
// ****************************************************************************
hrchilds's avatar
hrchilds committed
382

hrchilds's avatar
hrchilds committed
383
384
385
void
QvisExpressionsWindow::CreateWindowContents()
{
hrchilds's avatar
hrchilds committed
386
#define USE_SPLITTER
hrchilds's avatar
hrchilds committed
387
388
389
390
391
392
393
394
395
396
#ifndef USE_SPLITTER
    QHBoxLayout *mainLayout = new QHBoxLayout(topLayout, -1, "mainLayout");
#else
    QSplitter *mainSplitter = new QSplitter(central);
    topLayout->addWidget(mainSplitter);
    topLayout->setStretchFactor(mainSplitter, 100);
#endif

#ifndef USE_SPLITTER
    QGridLayout *listLayout = new QGridLayout(mainLayout, 3,2, 5, "listLayout");
hrchilds's avatar
hrchilds committed
397
    mainLayout->setStretchFactor(listLayout, 50);
hrchilds's avatar
hrchilds committed
398
399
#define f1 central
#else
hrchilds's avatar
hrchilds committed
400
401
    QGroupBox *f1 = new QGroupBox("Expression List",mainSplitter);
    QGridLayout *listLayout = new QGridLayout(f1, 4,2, 7, 5, "listLayout");
hrchilds's avatar
hrchilds committed
402
403
#endif

hrchilds's avatar
hrchilds committed
404
405
    listLayout->addRowSpacing(0, 10);

hrchilds's avatar
hrchilds committed
406
    exprListBox = new QListBox(f1);
hrchilds's avatar
hrchilds committed
407
    listLayout->addMultiCellWidget(exprListBox, 1,1, 0,1);
hrchilds's avatar
hrchilds committed
408
409

    newButton = new QPushButton("New", f1, "newButton");
hrchilds's avatar
hrchilds committed
410
    listLayout->addWidget(newButton, 2,0);
hrchilds's avatar
hrchilds committed
411

hrchilds's avatar
hrchilds committed
412
413
    delButton = new QPushButton("Delete", f1, "delButton");
    listLayout->addWidget(delButton, 2,1);
hrchilds's avatar
hrchilds committed
414

hrchilds's avatar
hrchilds committed
415
416
    displayAllVars = new QCheckBox("Display expressions from database", f1, "displayAllVars");
    listLayout->addMultiCellWidget(displayAllVars, 3,3, 0,1);
hrchilds's avatar
hrchilds committed
417
418
419
420

#ifndef USE_SPLITTER
    mainLayout->addSpacing(10);
    QGridLayout *editLayout = new QGridLayout(mainLayout, 6,2, 5, "editLayout");
hrchilds's avatar
hrchilds committed
421
    mainLayout->setStretchFactor(editLayout, 50);
hrchilds's avatar
hrchilds committed
422
423
#define f2 central
#else
hrchilds's avatar
hrchilds committed
424
425
    QGroupBox *f2 = new QGroupBox("Definition", mainSplitter);
    QGridLayout *editLayout = new QGridLayout(f2, 6,4, 7, 5, "editLayout");
hrchilds's avatar
hrchilds committed
426
427
428
#endif
    int row = 0;

hrchilds's avatar
hrchilds committed
429
430
431
    editLayout->addRowSpacing(row, 10);
    row++;

hrchilds's avatar
hrchilds committed
432
    nameEditLabel = new QLabel("Name", f2, "nameEditLabel");
hrchilds's avatar
hrchilds committed
433
434
435
    nameEdit = new QNarrowLineEdit(f2, "nameEdit");
    editLayout->addMultiCellWidget(nameEditLabel, row,row, 0,0);
    editLayout->addMultiCellWidget(nameEdit, row,row, 1,3);
hrchilds's avatar
hrchilds committed
436
437
438
439
440
    row++;

    typeLabel = new QLabel("Type", f2, "typeLabel");
    typeList = new QComboBox(f2, "typeList");
    int numtypes = Expression::GetNumTypes();
hrchilds's avatar
hrchilds committed
441
    numtypes = 7;  // HACK!!!  Variable types after 6 currently fail.  FIXME!!!
hrchilds's avatar
hrchilds committed
442
443
    int i;
    for (i=1; i < numtypes ; i++)
hrchilds's avatar
hrchilds committed
444
        typeList->insertItem(Expression::GetTypeString((Expression::ExprType)i));
hrchilds's avatar
hrchilds committed
445
446
    editLayout->addMultiCellWidget(typeLabel, row,row, 0,0);
    editLayout->addMultiCellWidget(typeList, row,row, 1,3);
hrchilds's avatar
hrchilds committed
447
448
449
450
451
452
453
454
455
    row++;

    definitionEditLabel = new QLabel("Definition", f2, "definitionEditLabel");
    editLayout->addWidget(definitionEditLabel, row, 0);
    row++;

    definitionEdit = new QMultiLineEdit(f2, "definitionEdit");
    definitionEdit->setWordWrap(QMultiLineEdit::WidgetWidth);
    definitionEdit->setWrapPolicy(QMultiLineEdit::AtWhiteSpace);
hrchilds's avatar
hrchilds committed
456
    editLayout->addMultiCellWidget(definitionEdit, row,row, 0,3);
hrchilds's avatar
hrchilds committed
457
458
    row++;

hrchilds's avatar
hrchilds committed
459
    notHidden = new QCheckBox("Show variable in plot menus", f2, "notHidden");
hrchilds's avatar
hrchilds committed
460
    editLayout->addWidget(notHidden, row, 0);
hrchilds's avatar
hrchilds committed
461

hrchilds's avatar
hrchilds committed
462
    insertFunctionButton = new QPushButton("Insert Function...", f2);
hrchilds's avatar
hrchilds committed
463
    insertFunctionMenu = new QPopupMenu(f2, "insertFunctionMenu");
hrchilds's avatar
hrchilds committed
464
    for (i=0; exprlist[i].name; i++)
hrchilds's avatar
hrchilds committed
465
466
467
468
469
470
471
472
473
474
    {
        QPopupMenu *tmpMenu = new QPopupMenu(f2, exprlist[i].name);
        for (int j=0; exprlist[i].list[j]; j++)
        {
            tmpMenu->insertItem(exprlist[i].list[j]);
        }
        insertFunctionMenu->insertItem(exprlist[i].name, tmpMenu);
        connect(tmpMenu, SIGNAL(activated(int)),
                this, SLOT(insertFunction(int)));
    }
hrchilds's avatar
hrchilds committed
475
    insertFunctionButton->setPopup(insertFunctionMenu);
hrchilds's avatar
hrchilds committed
476
477
478
479
480
481
482
483
484
485
486
    editLayout->addWidget(insertFunctionButton, row, 2);

    // Create a variable button so we can insert variables for the
    // active source.
    insertVariableButton = new QvisVariableButton(false, false, false, -1, f2,
        "insertVariableButton");
    insertVariableButton->setChangeTextOnVariableChange(false);
    insertVariableButton->setText("Insert Variable...");
    connect(insertVariableButton, SIGNAL(activated(const QString &)),
            this, SLOT(insertVariable(const QString &)));
    editLayout->addWidget(insertVariableButton, row, 3);
hrchilds's avatar
hrchilds committed
487
    row++;
hrchilds's avatar
hrchilds committed
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502

    // connect signals

    connect(exprListBox, SIGNAL(selectionChanged()),
            this, SLOT(UpdateWindowSingleItem()));
    connect(nameEdit, SIGNAL(textChanged(const QString&)),
            this, SLOT(nameTextChanged(const QString&)));
    connect(definitionEdit, SIGNAL(textChanged()),
            this, SLOT(definitionTextChanged()));
    connect(newButton, SIGNAL(pressed()),
            this, SLOT(addExpression()));
    connect(delButton, SIGNAL(pressed()),
            this, SLOT(delExpression()));
    connect(typeList, SIGNAL(activated(int)),
            this, SLOT(typeChanged(int)));
hrchilds's avatar
hrchilds committed
503
504
    connect(notHidden, SIGNAL(clicked()),
            this, SLOT(notHiddenChanged()));
hrchilds's avatar
hrchilds committed
505
506
    connect(displayAllVars, SIGNAL(clicked()),
            this, SLOT(displayAllVarsChanged()));
hrchilds's avatar
hrchilds committed
507
508
509
510
511
512
513
514
515
516
517
518
}

// ****************************************************************************
// Method: QvisExpressionsWindow::UpdateWindow
//
// Purpose: 
//   This method is called when the window's subject is changed. The
//   subject tells this window what attributes changed and we put the
//   new values into those widgets.
//
// Arguments:
//   doAll : If this flag is true, update all the widgets regardless
hrchilds's avatar
hrchilds committed
519
//           of whether or not they are selected.  Currently ignored.
hrchilds's avatar
hrchilds committed
520
//
hrchilds's avatar
hrchilds committed
521
522
523
524
// Programmer: Jeremy Meredith
// Creation:   October 10, 2004
//
// Modifications:
hrchilds's avatar
hrchilds committed
525
526
527
528
//    Jeremy Meredith, Mon Oct 25 12:52:45 PDT 2004
//    Always access the expression list by index, just in case there
//    are two expressions with the same name.  Keep in mind we need
//    a map from the list-position index to expressionlist index.
hrchilds's avatar
hrchilds committed
529
//
hrchilds's avatar
hrchilds committed
530
531
532
533
534
535
536
// ****************************************************************************
void
QvisExpressionsWindow::UpdateWindow(bool)
{
    BlockAllSignals(true);

    exprListBox->clear();
hrchilds's avatar
hrchilds committed
537
538
    indexMap.clear();
    int pos = 0;
hrchilds's avatar
hrchilds committed
539
540
541
542
543
    for (int i=0; i<exprList->GetNumExpressions(); i++)
    {
        if (displayAllVars->isChecked() ||
            !exprList->GetExpression(i).GetFromDB())
        {
hrchilds's avatar
hrchilds committed
544
            exprListBox->insertItem(exprList->GetExpression(i).GetName().c_str());
hrchilds's avatar
hrchilds committed
545
            indexMap[pos++] = i;
hrchilds's avatar
hrchilds committed
546
547
548
549
550
551
552
553
554
        }
    }
    BlockAllSignals(false);

    UpdateWindowSingleItem();
}

// ****************************************************************************
//  Method:  QvisExpressionsWindow::UpdateWindowSingleItem
hrchilds's avatar
hrchilds committed
555
//
hrchilds's avatar
hrchilds committed
556
557
//  Purpose:
//    Update the pane of the window where a single expression is being edited.
hrchilds's avatar
hrchilds committed
558
//
hrchilds's avatar
hrchilds committed
559
560
//  Programmer:  Jeremy Meredith
//  Creation:    October 10, 2004
hrchilds's avatar
hrchilds committed
561
//
hrchilds's avatar
hrchilds committed
562
563
564
565
566
567
//  Modifications:
//    Jeremy Meredith, Mon Oct 25 11:34:35 PDT 2004
//    Reversed the sense of the "hidden" button.
//    Always access the expression list by index, just in case there
//    are two expressions with the same name.
//
hrchilds's avatar
hrchilds committed
568
569
// ****************************************************************************
void
hrchilds's avatar
hrchilds committed
570
QvisExpressionsWindow::UpdateWindowSingleItem()
hrchilds's avatar
hrchilds committed
571
{
hrchilds's avatar
hrchilds committed
572
573
574
    BlockAllSignals(true);
    int index = exprListBox->currentItem();

hrchilds's avatar
hrchilds committed
575
    if (index <  0)
hrchilds's avatar
hrchilds committed
576
577
    {
        nameEdit->setText("");
hrchilds's avatar
hrchilds committed
578
        notHidden->setChecked(true);
hrchilds's avatar
hrchilds committed
579
580
581
        definitionEdit->setText("");
    }
    else
hrchilds's avatar
hrchilds committed
582
    {
hrchilds's avatar
hrchilds committed
583
584
        Expression &e = (*exprList)[indexMap[index]];

hrchilds's avatar
hrchilds committed
585
        nameEdit->setText(e.GetName().c_str());
hrchilds's avatar
hrchilds committed
586
587
        notHidden->setChecked(! e.GetHidden());
        typeList->setCurrentText(Expression::GetTypeString(e.GetType()));
hrchilds's avatar
hrchilds committed
588
        definitionEdit->setText(e.GetDefinition().c_str());
hrchilds's avatar
hrchilds committed
589
    }
hrchilds's avatar
hrchilds committed
590
591
592
593
    
    UpdateWindowSensitivity();
    BlockAllSignals(false);
}
hrchilds's avatar
hrchilds committed
594

hrchilds's avatar
hrchilds committed
595
596
597
598
599
600
601
602
603
// ****************************************************************************
//  Method:  QvisExpressionsWindow::UpdateWindowSensitivity
//
//  Purpose:
//    Update the sensitivity of any widget needing it.
//
//  Programmer:  Jeremy Meredith
//  Creation:    October 10, 2004
//
hrchilds's avatar
hrchilds committed
604
605
606
607
608
609
//  Modifications:
//    Jeremy Meredith, Mon Oct 25 11:34:35 PDT 2004
//    Reversed the sense of the "hidden" button.
//    Always access the expression list by index, just in case there
//    are two expressions with the same name.
//
hrchilds's avatar
hrchilds committed
610
611
612
//    Brad Whitlock, Thu Dec 9 14:04:22 PST 2004
//    Added a button to insert variable names.
//
hrchilds's avatar
hrchilds committed
613
// ****************************************************************************
hrchilds's avatar
hrchilds committed
614

hrchilds's avatar
hrchilds committed
615
616
617
618
void
QvisExpressionsWindow::UpdateWindowSensitivity()
{
    bool enable = true;
hrchilds's avatar
hrchilds committed
619
620
621
    int index = exprListBox->currentItem();

    if (index <  0)
hrchilds's avatar
hrchilds committed
622
    {
hrchilds's avatar
hrchilds committed
623
624
        enable = false;
    }
hrchilds's avatar
hrchilds committed
625
    else if ((*exprList)[indexMap[index]].GetFromDB())
hrchilds's avatar
hrchilds committed
626
627
    {
        enable = false;
hrchilds's avatar
hrchilds committed
628
629
    }

hrchilds's avatar
hrchilds committed
630
631
    nameEdit->setEnabled(enable);
    delButton->setEnabled(enable);
hrchilds's avatar
hrchilds committed
632
    notHidden->setEnabled(enable);
hrchilds's avatar
hrchilds committed
633
634
635
    typeList->setEnabled(enable);
    definitionEdit->setEnabled(enable);
    insertFunctionButton->setEnabled(enable);
hrchilds's avatar
hrchilds committed
636
    insertVariableButton->setEnabled(enable);
hrchilds's avatar
hrchilds committed
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
}

// ****************************************************************************
//  Method:  QvisExpressionsWindow::BlockAllSignals
//
//  Purpose:
//    Block signals for all important widgets.  Or unblock, of course.
//
//  Arguments:
//    block      true to block, false to unblock
//
//  Programmer:  Jeremy Meredith
//  Creation:    October 10, 2004
//
// ****************************************************************************
void
QvisExpressionsWindow::BlockAllSignals(bool block)
{
    exprListBox->blockSignals(block);
    nameEdit->blockSignals(block);
    definitionEdit->blockSignals(block);
hrchilds's avatar
hrchilds committed
658
659
660
661
662
663
664
665
}

// ****************************************************************************
// Method: QvisExpressionsWindow::Apply
//
// Purpose: 
//   This is a Qt slot function that is called when the Apply button is clicked.
//
hrchilds's avatar
hrchilds committed
666
667
// Programmer: Jeremy Meredith
// Creation:   October 10, 2004
hrchilds's avatar
hrchilds committed
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
//
// Modifications:
//   
// ****************************************************************************
void
QvisExpressionsWindow::Apply(bool forceUpdate)
{
    exprList->Notify();

    if (AutoUpdate() || forceUpdate)
        viewer->ProcessExpressions();
}

// ****************************************************************************
// Method: QvisExpressionsWindow::apply
//
// Purpose: 
//   This is a Qt slot function that is called when the window's Apply
//   button is clicked.
//
hrchilds's avatar
hrchilds committed
688
689
// Programmer: Jeremy Meredith
// Creation:   October 10, 2004
hrchilds's avatar
hrchilds committed
690
691
692
693
694
695
696
//
// Modifications:
//   
// ****************************************************************************
void
QvisExpressionsWindow::apply()
{
hrchilds's avatar
hrchilds committed
697
698
699
700
701
    // Apply will recreate the window and unselect the current expression.
    // If we have an expression selected, reselect it afterwards.
    int reselect = (exprListBox->currentItem() != -1);
    QString item = exprListBox->currentText();

hrchilds's avatar
hrchilds committed
702
    Apply(true);
hrchilds's avatar
hrchilds committed
703
704
705
706
707
708
709
710
711

    if (reselect)
    {
        for (int i=0; i<exprListBox->count(); i++)
        {
            if (exprListBox->text(i) == item)
                exprListBox->setSelected(i, true);
        }
    }
hrchilds's avatar
hrchilds committed
712
713
714
715
716
717
718
719
}

// ****************************************************************************
// Method: QvisExpressionsWindow::addExpression
//
// Purpose: 
//   This is a Qt slot function that adds a new expression that is empty.
//
hrchilds's avatar
hrchilds committed
720
721
// Programmer: Jeremy Meredith
// Creation:   October 10, 2004
hrchilds's avatar
hrchilds committed
722
723
//
// Modifications:
hrchilds's avatar
hrchilds committed
724
725
726
//    Jeremy Meredith, Mon Oct 25 12:39:53 PDT 2004
//    Always access the expression list by index, just in case there
//    are two expressions with the same name.
hrchilds's avatar
hrchilds committed
727
728
729
730
731
//   
// ****************************************************************************
void
QvisExpressionsWindow::addExpression()
{
hrchilds's avatar
hrchilds committed
732
733
734
735
736
737
738
739
740
741
742
743
    // Find an unused expression name
    int newid = 1;
    bool okay = false;
    QString newName;
    while (!okay)
    {
        newName.sprintf("unnamed%d", newid);
        if ((*exprList)[newName.latin1()])
            newid++;
        else
            okay = true;
    }
hrchilds's avatar
hrchilds committed
744

hrchilds's avatar
hrchilds committed
745
746
747
748
    Expression e;
    e.SetName(newName.latin1());
    e.SetDefinition("");
    exprList->AddExpression(e);
hrchilds's avatar
hrchilds committed
749
750

    exprList->Notify();
hrchilds's avatar
hrchilds committed
751
752
753
754
755
756

    for (int i=0; i<exprListBox->count(); i++)
    {
        if (exprListBox->text(i) == newName)
            exprListBox->setSelected(i, true);
    }
hrchilds's avatar
hrchilds committed
757
758
759
}

// ****************************************************************************
hrchilds's avatar
hrchilds committed
760
// Method: QvisExpressionsWindow::delExpression
hrchilds's avatar
hrchilds committed
761
762
763
764
//
// Purpose: 
//   This is a Qt slot function that is called to delete an expression.
//
hrchilds's avatar
hrchilds committed
765
766
// Programmer: Jeremy Meredith
// Creation:   October 10, 2004
hrchilds's avatar
hrchilds committed
767
768
//
// Modifications:
hrchilds's avatar
hrchilds committed
769
770
771
772
//    Jeremy Meredith, Mon Oct 17 10:39:56 PDT 2005
//    Made the delete action access the expression list by index in the
//    expression list (instead of assuming its index in the list box was
//    correct).  This was an oversight from my 10/25/04 change.  ('5682)
hrchilds's avatar
hrchilds committed
773
774
775
//   
// ****************************************************************************
void
hrchilds's avatar
hrchilds committed
776
QvisExpressionsWindow::delExpression()
hrchilds's avatar
hrchilds committed
777
{
hrchilds's avatar
hrchilds committed
778
779
    int index = exprListBox->currentItem();

hrchilds's avatar
hrchilds committed
780
    if (index <  0)
hrchilds's avatar
hrchilds committed
781
782
        return;

hrchilds's avatar
hrchilds committed
783
    exprList->RemoveExpression(indexMap[index]);
hrchilds's avatar
hrchilds committed
784
785
786

    exprList->Notify();
}
hrchilds's avatar
hrchilds committed
787
788
789
790
791
792
793
794
795
796
797

// ****************************************************************************
//  Method:  QvisExpressionsWindow::definitionTextChanged
//
//  Purpose:
//    Slot function when definition text is changed.  This is called for
//    any change to the definition text.
//
//  Programmer:  Jeremy Meredith
//  Creation:    October 10, 2004
//
hrchilds's avatar
hrchilds committed
798
799
800
801
802
//  Modifications:
//    Jeremy Meredith, Mon Oct 25 12:40:01 PDT 2004
//    Always access the expression list by index, just in case there
//    are two expressions with the same name.
//
hrchilds's avatar
hrchilds committed
803
804
805
806
807
808
// ****************************************************************************
void
QvisExpressionsWindow::definitionTextChanged()
{
    int index = exprListBox->currentItem();

hrchilds's avatar
hrchilds committed
809
    if (index <  0)
hrchilds's avatar
hrchilds committed
810
811
        return;

hrchilds's avatar
hrchilds committed
812
813
    Expression &e = (*exprList)[indexMap[index]];

hrchilds's avatar
hrchilds committed
814
    e.SetDefinition(definitionEdit->text().latin1());
hrchilds's avatar
hrchilds committed
815
816
817
818
819
820
821
822
823
824
825
826
827
828
}

// ****************************************************************************
//  Method:  QvisExpressionsWindow::nameTextChanged
//
//  Purpose:
//    Slot function when any change happens to the expression names.
//
//  Arguments:
//    text       the new text.
//
//  Programmer:  Jeremy Meredith
//  Creation:    October 10, 2004
//
hrchilds's avatar
hrchilds committed
829
830
831
832
833
//  Modifications:
//    Jeremy Meredith, Mon Oct 25 12:40:31 PDT 2004
//    Always access the expression list by index, just in case there
//    are two expressions with the same name.
//
hrchilds's avatar
hrchilds committed
834
835
836
837
//    Jeremy Meredith, Mon Oct 17 10:42:08 PDT 2005
//    Never allow an empty name to get into the expression list.  This
//    could cause crashes.  ('6295)
//
hrchilds's avatar
hrchilds committed
838
839
840
841
842
843
// ****************************************************************************
void
QvisExpressionsWindow::nameTextChanged(const QString &text)
{
    int index = exprListBox->currentItem();

hrchilds's avatar
hrchilds committed
844
    if (index <  0)
hrchilds's avatar
hrchilds committed
845
846
        return;

hrchilds's avatar
hrchilds committed
847
848
    Expression &e = (*exprList)[indexMap[index]];

hrchilds's avatar
hrchilds committed
849
    QString newname = text.stripWhiteSpace();
hrchilds's avatar
hrchilds committed
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864

    if (newname.isEmpty())
    {
        int newid = 1;
        bool okay = false;
        while (!okay)
        {
            newname.sprintf("unnamed%d", newid);
            if ((*exprList)[newname.latin1()])
                newid++;
            else
                okay = true;
        }
    }

hrchilds's avatar
hrchilds committed
865
    e.SetName(newname.latin1());
hrchilds's avatar
hrchilds committed
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
    BlockAllSignals(true);
    exprListBox->changeItem(newname, index);
    BlockAllSignals(false);
}

// ****************************************************************************
//  Method:  QvisExpressionsWindow::typeChanged
//
//  Purpose:
//    Slot function for the "type" combo box.  Sets the expression type.
//
//  Arguments:
//    value      the new type
//
//  Programmer:  Jeremy Meredith
//  Creation:    October 10, 2004
//
hrchilds's avatar
hrchilds committed
883
884
885
886
887
//  Modifications:
//    Jeremy Meredith, Mon Oct 25 12:40:37 PDT 2004
//    Always access the expression list by index, just in case there
//    are two expressions with the same name.
//
hrchilds's avatar
hrchilds committed
888
889
890
891
892
893
// ****************************************************************************
void
QvisExpressionsWindow::typeChanged(int value)
{
    int index = exprListBox->currentItem();

hrchilds's avatar
hrchilds committed
894
    if (index <  0)
hrchilds's avatar
hrchilds committed
895
896
        return;

hrchilds's avatar
hrchilds committed
897
898
    Expression &e = (*exprList)[indexMap[index]];

hrchilds's avatar
hrchilds committed
899
900
    // Add one because we skipped index 0 (unknown) when creating the
    // list box originally
hrchilds's avatar
hrchilds committed
901
    e.SetType(Expression::ExprType(value+1));
hrchilds's avatar
hrchilds committed
902
903
904
}

// ****************************************************************************
hrchilds's avatar
hrchilds committed
905
//  Method:  QvisExpressionsWindow::notHiddenChanged
hrchilds's avatar
hrchilds committed
906
907
//
//  Purpose:
hrchilds's avatar
hrchilds committed
908
909
//    Slot function for the notHidden toggle.
//    Sets the "notHidden" flag of an expression.
hrchilds's avatar
hrchilds committed
910
911
912
913
//
//  Programmer:  Jeremy Meredith
//  Creation:    October 10, 2004
//
hrchilds's avatar
hrchilds committed
914
915
916
917
918
919
//  Modifications:
//    Jeremy Meredith, Mon Oct 25 11:34:35 PDT 2004
//    Reversed the sense of the "hidden" button.
//    Always access the expression list by index, just in case there
//    are two expressions with the same name.
//
hrchilds's avatar
hrchilds committed
920
921
// ****************************************************************************
void
hrchilds's avatar
hrchilds committed
922
QvisExpressionsWindow::notHiddenChanged()
hrchilds's avatar
hrchilds committed
923
924
925
{
    int index = exprListBox->currentItem();

hrchilds's avatar
hrchilds committed
926
    if (index <  0)
hrchilds's avatar
hrchilds committed
927
928
        return;

hrchilds's avatar
hrchilds committed
929
930
931
    Expression &e = (*exprList)[indexMap[index]];

    e.SetHidden(!notHidden->isChecked());
hrchilds's avatar
hrchilds committed
932
933
934
935
936
937
938
939
940
941
942
943
}

// ****************************************************************************
//  Method:  QvisExpressionsWindow::displayAllVarsChanged
//
//  Purpose:
//    Slot function, called when "display all variables" is toggled.
//    Just update the window because it will be taken care of.
//
//  Programmer:  Jeremy Meredith
//  Creation:    October 10, 2004
//
hrchilds's avatar
hrchilds committed
944
945
946
947
//  Modifications:
//    Jeremy Meredith, Mon Oct 25 13:33:35 PDT 2004
//    Made it reselect an expression that was already selected, like Apply.
//
hrchilds's avatar
hrchilds committed
948
949
950
951
// ****************************************************************************
void
QvisExpressionsWindow::displayAllVarsChanged()
{
hrchilds's avatar
hrchilds committed
952
953
954
955
956
    // This updates the window, which rebuilds the expression list.
    // If we have an expression selected, reselect it afterwards.
    int reselect = (exprListBox->currentItem() != -1);
    QString item = exprListBox->currentText();

hrchilds's avatar
hrchilds committed
957
    UpdateWindow(true);
hrchilds's avatar
hrchilds committed
958
959
960
961
962
963
964
965
966

    if (reselect)
    {
        for (int i=0; i<exprListBox->count(); i++)
        {
            if (exprListBox->text(i) == item)
                exprListBox->setSelected(i, true);
        }
    }
hrchilds's avatar
hrchilds committed
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
}

// ****************************************************************************
//  Method:  QvisExpressionsWindow::insertFunction
//
//  Purpose:
//    Slot function when a function was selected for insertion by 
//    the popup menu.
//
//  Arguments:
//    id         the menu item id of the function
//
//  Programmer:  Jeremy Meredith
//  Creation:    October 10, 2004
//
hrchilds's avatar
hrchilds committed
982
983
984
985
986
//  Modifications:
//    Jeremy Meredith, Mon Oct 25 11:33:43 PDT 2004
//    Make sure it's not just a single-char operator before adding the
//    function call parentheses.
//
hrchilds's avatar
hrchilds committed
987
988
989
//    Brad Whitlock, Thu Dec 9 14:15:01 PST 2004
//    Added code to set the focus to the definition edit.
//
hrchilds's avatar
hrchilds committed
990
991
992
//    Hank Childs, Sun Jan 22 12:49:57 PST 2006
//    Add special insertion code for complicated expressions.
//
hrchilds's avatar
hrchilds committed
993
994
995
996
//    Hank Childs, Fri Mar 10 14:28:11 PST 2006
//    Change ordering of arguments for pos_cmfe, since the first pass was
//    incorrect.
//
hrchilds's avatar
hrchilds committed
997
998
999
//    Hank Childs, Mon Mar 13 16:48:23 PST 2006
//    Added min and max.
//
hrchilds's avatar
hrchilds committed
1000
// ****************************************************************************
hrchilds's avatar
hrchilds committed
1001

hrchilds's avatar
hrchilds committed
1002
1003
1004
1005
1006
1007
1008
void
QvisExpressionsWindow::insertFunction(int id)
{
    if (!definitionEdit->isEnabled())
        return;

    definitionEdit->insert(insertFunctionMenu->text(id));
hrchilds's avatar
hrchilds committed
1009

hrchilds's avatar
hrchilds committed
1010
    bool doParens = (insertFunctionMenu->text(id).length() >= 2);
hrchilds's avatar
hrchilds committed
1011
    std::string str = insertFunctionMenu->text(id).latin1();
hrchilds's avatar
hrchilds committed
1012
1013
1014
1015
1016
1017
1018
    if (str == "conn_cmfe")
    {
        definitionEdit->insert("(<filename:var>, <meshname>)");
        doParens = false;
    }
    else if (str == "pos_cmfe")
    {
hrchilds's avatar
hrchilds committed
1019
        definitionEdit->insert("(<filename:var>, <meshname>, <default-var>)");
hrchilds's avatar
hrchilds committed
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
        doParens = false;
    }
    else if (str == "symm_plane")
    {
        definitionEdit->insert("(<var>, [Nx, Ny, Nz, Ox, Oy, Oz])");
        doParens = false;
    }
    else if (str == "symm_transform")
    {
        definitionEdit->insert("(<var>, [T00, T01, T02, T10, T11, T12, "
                                        "T20, T21, T22])");
        doParens = false;
    }
    else if (str == "matvf")
    {
        definitionEdit->insert("(<material-name>, [#, #, ... #])");
        doParens = false;
    }
    else if (str == "specmf")
    {
        definitionEdit->insert("(<material-name>, [#, #, ... #])");
        doParens = false;
    }
    else if (str == "if")
    {
        definitionEdit->insert("(<condition>, <then-var>, <else-var>)");
        doParens = false;
    }
hrchilds's avatar
hrchilds committed
1048
1049
1050
1051
1052
    else if (str == "min" || str == "max")
    {
        definitionEdit->insert("(<var1>, <var2>)");
        doParens = false;
    }
hrchilds's avatar
hrchilds committed
1053
1054

    if (doParens)
hrchilds's avatar
hrchilds committed
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
    {
        definitionEdit->insert("()");

        int col,line;
        definitionEdit->getCursorPosition(&line, &col);
        col--;
        if (col < 0)
            col = 0;
        definitionEdit->setCursorPosition(line, col);
    }
hrchilds's avatar
hrchilds committed
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083

    definitionEdit->setFocus();
}

// ****************************************************************************
// Method: QvisExpressionWindow::insertVariable
//
// Purpose: 
//   This is a Qt slot function that inserts a variable name into the 
//   current variable definition.
//
// Arguments:
//   var : The variable.
//
// Programmer: Brad Whitlock
// Creation:   Thu Dec 9 10:52:37 PDT 2004
//
// Modifications:
//   
hrchilds's avatar
hrchilds committed
1084
1085
1086
//    Jeremy Meredith, Fri Sep  2 16:26:42 PDT 2005
//    Made it be more aggressive about quoting.
//
hrchilds's avatar
hrchilds committed
1087
1088
1089
1090
1091
1092
1093
1094
// ****************************************************************************

void
QvisExpressionsWindow::insertVariable(const QString &var)
{
    if (!definitionEdit->isEnabled())
        return;

hrchilds's avatar
hrchilds committed
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
    // If the variable name contains special characters
    // then put the <> around the variable name.
    bool needs_quoting = false;

    for (int i=0; i<var.length(); i++)
    {
        char c = var[i];
        if ((c < 'A' || c > 'Z') &&
            (c < 'a' || c > 'z') &&
            (c < '0' || c > '9') &&
            c != '_')
        {
            needs_quoting = true;
            break;
        }
    }

    QString newVar;
    if (needs_quoting)
hrchilds's avatar
hrchilds committed
1114
        newVar = QString("<") + var + QString(">");
hrchilds's avatar
hrchilds committed
1115
1116
    else
        newVar = var;
hrchilds's avatar
hrchilds committed
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149

    definitionEdit->insert(newVar);
    definitionEdit->setFocus();
}

// ****************************************************************************
// Method: QvisExpressionsWindow::newExpression
//
// Purpose: 
//   This is a Qt slot function that can be called on the window to add a
//   new expression and set the focus of the window to the name line edit
//   and select all of its text.
//
// Note:       This method is used by the "Create new expression ..." option
//             in QvisVariableButtons.
//
// Programmer: Brad Whitlock
// Creation:   Thu Dec 9 10:18:13 PDT 2004
//
// Modifications:
//   
// ****************************************************************************

void
QvisExpressionsWindow::newExpression()
{
    // Add a new expression
    addExpression();

    // Make the name line edit be the active widget and select its text.
    nameEdit->setFocus();
    nameEdit->setCursorPosition(0);
    nameEdit->selectAll();
hrchilds's avatar
hrchilds committed
1150
}