-
-
Notifications
You must be signed in to change notification settings - Fork 3k
/
qgsvectorlayerproperties.cpp
596 lines (514 loc) · 20.6 KB
/
qgsvectorlayerproperties.cpp
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
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
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
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
/***************************************************************************
qgsdlgvectorlayerproperties.cpp
Unified property dialog for vector layers
-------------------
begin : 2004-01-28
copyright : (C) 2004 by Gary E.Sherman
email : sherman at mrcc.com
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
/* $Id$ */
#include "qgsvectorlayerproperties.h"
#include "qgsattributeactiondialog.h"
#include "qgscontexthelp.h"
#include "qgscontinuouscolordialog.h"
#include "qgscoordinatetransform.h"
#include "qgsgraduatedsymboldialog.h"
#include "qgslabel.h"
#include "qgslabeldialog.h"
#include "qgslayerprojectionselector.h"
#include "qgslogger.h"
#include "qgssinglesymboldialog.h"
#include "qgsuniquevaluedialog.h"
#include "qgsvectordataprovider.h"
#include "qgsvectorlayer.h"
#include "qgsconfig.h"
#ifdef HAVE_POSTGRESQL
#include "qgspgquerybuilder.h"
#include "../providers/postgres/qgspostgresprovider.h"
#endif
#include <QMessageBox>
QgsVectorLayerProperties::QgsVectorLayerProperties(QgsVectorLayer * lyr,
QWidget * parent,
Qt::WFlags fl)
: QDialog(parent, fl),
layer(lyr),
mRendererDialog(0)
{
setupUi(this);
connect(buttonBox, SIGNAL(accepted()), this, SLOT(accept()));
connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));
connect(buttonBox->button(QDialogButtonBox::Apply), SIGNAL(clicked()), this, SLOT(apply()));
connect(this, SIGNAL(accepted()), this, SLOT(apply()));
// Create the Label dialog tab
QVBoxLayout *layout = new QVBoxLayout( labelOptionsFrame );
layout->setMargin(0);
labelDialog = new QgsLabelDialog ( layer->label(), labelOptionsFrame);
layout->addWidget( labelDialog );
labelOptionsFrame->setLayout(layout);
connect(labelDialog, SIGNAL(labelSourceSet()),
this, SLOT(setLabelCheckBox()));
// Create the Actions dialog tab
QgsVectorDataProvider *dp = dynamic_cast<QgsVectorDataProvider *>(layer->getDataProvider());
QVBoxLayout *actionLayout = new QVBoxLayout( actionOptionsFrame );
actionLayout->setMargin(0);
QgsFieldMap fields = dp->fields();
actionDialog = new QgsAttributeActionDialog ( layer->actions(), fields,
actionOptionsFrame );
actionLayout->addWidget( actionDialog );
reset();
if(layer->getDataProvider())//enable spatial index button group if supported by provider
{
int capabilities=layer->getDataProvider()->capabilities();
if(!(capabilities&QgsVectorDataProvider::CreateSpatialIndex))
{
indexGroupBox->setEnabled(false);
}
}
leSpatialRefSys->setText(layer->srs().proj4String());
leSpatialRefSys->setCursorPosition(0);
connect(sliderTransparency, SIGNAL(valueChanged(int)), this, SLOT(sliderTransparency_valueChanged(int)));
} // QgsVectorLayerProperties ctor
QgsVectorLayerProperties::~QgsVectorLayerProperties()
{
disconnect(labelDialog, SIGNAL(labelSourceSet()),
this, SLOT(setLabelCheckBox()));
}
void QgsVectorLayerProperties::sliderTransparency_valueChanged(int theValue)
{
//set the transparency percentage label to a suitable value
int myInt = static_cast < int >((theValue / 255.0) * 100); //255.0 to prevent integer division
lblTransparencyPercent->setText(tr("Transparency: ") + QString::number(myInt) + "%");
}//sliderTransparency_valueChanged
void QgsVectorLayerProperties::setLabelCheckBox()
{
labelCheckBox->setCheckState(Qt::Checked);
}
void QgsVectorLayerProperties::alterLayerDialog(const QString & dialogString)
{
widgetStackRenderers->removeWidget(mRendererDialog);
delete mRendererDialog;
mRendererDialog=0;
if(dialogString == tr("Single Symbol"))
{
mRendererDialog = new QgsSingleSymbolDialog(layer);
}
else if(dialogString == tr("Graduated Symbol"))
{
mRendererDialog = new QgsGraduatedSymbolDialog(layer);
}
else if(dialogString == tr("Continuous Color"))
{
mRendererDialog = new QgsContinuousColorDialog(layer);
}
else if(dialogString == tr("Unique Value"))
{
mRendererDialog = new QgsUniqueValueDialog(layer);
}
widgetStackRenderers->addWidget(mRendererDialog);
widgetStackRenderers->setCurrentWidget(mRendererDialog);
}
void QgsVectorLayerProperties::setLegendType(QString type)
{
legendtypecombobox->setCurrentText(type);
}
void QgsVectorLayerProperties::setDisplayField(QString name)
{
displayFieldComboBox->setCurrentText(name);
}
//! @note in raster props, this metho d is called sync()
void QgsVectorLayerProperties::reset( void )
{
// populate the general information
txtDisplayName->setText(layer->name());
pbnQueryBuilder->setWhatsThis(tr("This button opens the PostgreSQL query builder and allows you to create a subset of features to display on the map canvas rather than displaying all features in the layer"));
txtSubsetSQL->setWhatsThis(tr("The query used to limit the features in the layer is shown here. This is currently only supported for PostgreSQL layers. To enter or modify the query, click on the Query Builder button"));
//we are dealing with a pg layer here so that we can enable the sql box
QgsVectorDataProvider *dp = dynamic_cast<QgsVectorDataProvider *>(layer->getDataProvider());
//see if we are dealing with a pg layer here
if(layer->providerType() == "postgres")
{
grpSubset->setEnabled(true);
txtSubsetSQL->setText(layer->subsetString());
// if the user is allowed to type an adhoc query, the app will crash if the query
// is bad. For this reason, the sql box is disabled and the query must be built
// using the query builder, either by typing it in by hand or using the buttons, etc
// on the builder. If the ability to enter a query directly into the box is required,
// a mechanism to check it must be implemented.
txtSubsetSQL->setEnabled(false);
pbnQueryBuilder->setEnabled(true);
}
else
{
grpSubset->setEnabled(false);
}
//get field list for display field combo
const QgsFieldMap& myFields = dp->fields();
for (QgsFieldMap::const_iterator it = myFields.begin(); it != myFields.end(); ++it)
{
displayFieldComboBox->insertItem( it->name() );
}
// set up the scale based layer visibility stuff....
chkUseScaleDependentRendering->setChecked(layer->scaleBasedVisibility());
spinMinimumScale->setValue((int)layer->minScale());
spinMaximumScale->setValue((int)layer->maxScale());
// symbology initialization
if(legendtypecombobox->count()==0)
{
legendtypecombobox->insertItem(tr("Single Symbol"));
if(myFields.size()>0)
{
legendtypecombobox->insertItem(tr("Graduated Symbol"));
legendtypecombobox->insertItem(tr("Continuous Color"));
legendtypecombobox->insertItem(tr("Unique Value"));
}
}
//find out the type of renderer in the vectorlayer, create a dialog with these settings and add it to the form
delete mRendererDialog;
mRendererDialog=0;
QString rtype=layer->renderer()->name();
if(rtype=="Single Symbol")
{
mRendererDialog=new QgsSingleSymbolDialog(layer);
legendtypecombobox->setCurrentIndex(0);
}
else if(rtype=="Graduated Symbol")
{
mRendererDialog=new QgsGraduatedSymbolDialog(layer);
legendtypecombobox->setCurrentIndex(1);
}
else if(rtype=="Continuous Color")
{
mRendererDialog=new QgsContinuousColorDialog(layer);
legendtypecombobox->setCurrentIndex(2);
}
else if(rtype == "Unique Value")
{
mRendererDialog=new QgsUniqueValueDialog(layer);
legendtypecombobox->setCurrentIndex(3);
}
if(mRendererDialog)
{
widgetStackRenderers->addWidget(mRendererDialog);
widgetStackRenderers->setCurrentWidget(mRendererDialog);
}
QObject::connect(legendtypecombobox, SIGNAL(activated(const QString &)), this, SLOT(alterLayerDialog(const QString &)));
// reset fields in label dialog
layer->label()->setFields ( layer->getDataProvider()->fields() );
//set the metadata contents
teMetadata->setText(getMetadata());
actionDialog->init();
labelDialog->init();
labelCheckBox->setChecked(layer->labelOn());
//set the transparency slider
sliderTransparency->setValue(255 - layer->getTransparency());
//update the transparency percentage label
sliderTransparency_valueChanged(255 - layer->getTransparency());
} // reset()
//
// methods reimplemented from qt designer base class
//
void QgsVectorLayerProperties::on_buttonBox_helpRequested()
{
QgsContextHelp::run(context_id);
}
void QgsVectorLayerProperties::apply()
{
//
// Set up sql subset query if applicable
//
#ifdef HAVE_POSTGRESQL
// Tim commented out the next line because dp is not actually used anywhere....
//QgsVectorDataProvider *dp = dynamic_cast<QgsVectorDataProvider *>(layer->getDataProvider());
//see if we are dealing with a pg layer here
if(layer->providerType() == "postgres")
{
grpSubset->setEnabled(true);
// set the subset sql for the layer
layer->setSubsetString(txtSubsetSQL->text());
// update the metadata with the updated sql subset
teMetadata->setText(getMetadata());
// update the extents of the layer (fetched from the provider)
layer->updateExtents();
}
#endif
// set up the scale based layer visibility stuff....
layer->setScaleBasedVisibility(chkUseScaleDependentRendering->isChecked());
layer->setMinScale(spinMinimumScale->value());
layer->setMaxScale(spinMaximumScale->value());
// update the display field
layer->setDisplayField(displayFieldComboBox->currentText());
actionDialog->apply();
labelDialog->apply();
layer->setLabelOn(labelCheckBox->isChecked());
layer->setLayerName(displayName());
QgsSingleSymbolDialog *sdialog = dynamic_cast < QgsSingleSymbolDialog * >(widgetStackRenderers->currentWidget());
QgsGraduatedSymbolDialog *gdialog = dynamic_cast < QgsGraduatedSymbolDialog * >(widgetStackRenderers->currentWidget());
QgsContinuousColorDialog *cdialog = dynamic_cast < QgsContinuousColorDialog * >(widgetStackRenderers->currentWidget());
QgsUniqueValueDialog* udialog = dynamic_cast< QgsUniqueValueDialog * >(widgetStackRenderers->currentWidget());
if (sdialog)
{
sdialog->apply();
}
else if (gdialog)
{
gdialog->apply();
}
else if (cdialog)
{
cdialog->apply();
}
else if(udialog)
{
udialog->apply();
}
layer->setTransparency(static_cast < unsigned int >(255 - sliderTransparency->value()));
// update symbology
emit refreshLegend(layer->getLayerID());
layer->triggerRepaint();
}
void QgsVectorLayerProperties::on_pbnQueryBuilder_clicked()
{
#ifdef HAVE_POSTGRESQL
// launch the query builder using the PostgreSQL connection
// from the provider
// get the data provider
QgsVectorDataProvider *dp =
dynamic_cast<QgsVectorDataProvider *>(layer->getDataProvider());
// cast to postgres provider type
QgsPostgresProvider * myPGProvider = (QgsPostgresProvider *) dp;
// create the query builder object using the table name
// and postgres connection from the provider
QgsDataSourceURI uri(myPGProvider->dataSourceUri());
QgsPgQueryBuilder *pqb = new QgsPgQueryBuilder(&uri, this);
// Set the sql in the query builder to the same in the prop dialog
// (in case the user has already changed it)
pqb->setSql(txtSubsetSQL->text());
// Open the query builder
if(pqb->exec())
{
// if the sql is changed, update it in the prop subset text box
txtSubsetSQL->setText(pqb->sql());
//TODO If the sql is changed in the prop dialog, the layer extent should be recalculated
// The datasource for the layer needs to be updated with the new sql since this gets
// saved to the project file. This should happen at the map layer level...
}
// delete the query builder object
delete pqb;
#endif
}
void QgsVectorLayerProperties::on_pbnIndex_clicked()
{
QgsVectorDataProvider* pr=layer->getDataProvider();
if(pr)
{
setCursor(Qt::WaitCursor);
bool errval=pr->createSpatialIndex();
setCursor(Qt::ArrowCursor);
if(errval)
{
QMessageBox::information(this, tr("Spatial Index"), tr("Creation of spatial index successfull"));
}
else
{
// TODO: Remind the user to use OGR >= 1.2.6 and Shapefile
QMessageBox::information(this, tr("Spatial Index"), tr("Creation of spatial index failed"));
}
}
}
QString QgsVectorLayerProperties::getMetadata()
{
QString myMetadataQString = "<html><body>";
myMetadataQString += "<table width=\"100%\">";
//-------------
myMetadataQString += "<tr><td bgcolor=\"gray\">";
myMetadataQString += tr("General:");
myMetadataQString += "</td></tr>";
// data comment
if (!(layer->dataComment().isEmpty()))
{
myMetadataQString += "<tr><td bgcolor=\"white\">";
myMetadataQString += tr("Layer comment: ") +
layer->dataComment();
myMetadataQString += "</td></tr>";
}
//storage type
myMetadataQString += "<tr><td bgcolor=\"white\">";
myMetadataQString += tr("Storage type of this layer : ") +
layer->storageType();
myMetadataQString += "</td></tr>";
// data source
myMetadataQString += "<tr><td bgcolor=\"white\">";
myMetadataQString += tr("Source for this layer : ") +
layer->publicSource();
myMetadataQString += "</td></tr>";
//geom type
QGis::VectorType vectorType = layer->vectorType();
if ( vectorType < 0 || vectorType > QGis::Polygon )
{
QgsDebugMsg( "Invalid vector type" );
}
else
{
QString vectorTypeString( QGis::qgisVectorGeometryType[layer->vectorType()] );
myMetadataQString += "<tr><td bgcolor=\"white\">";
myMetadataQString += tr("Geometry type of the features in this layer : ") +
vectorTypeString;
myMetadataQString += "</td></tr>";
}
//feature count
myMetadataQString += "<tr><td bgcolor=\"white\">";
myMetadataQString += tr("The number of features in this layer : ") +
QString::number(layer->featureCount());
myMetadataQString += "</td></tr>";
//capabilities
myMetadataQString += "<tr><td bgcolor=\"white\">";
myMetadataQString += tr("Editing capabilities of this layer : ") +
layer->capabilitiesString();
myMetadataQString += "</td></tr>";
//-------------
QgsRect myExtent = layer->extent();
myMetadataQString += "<tr><td bgcolor=\"gray\">";
myMetadataQString += tr("Extents:");
myMetadataQString += "</td></tr>";
//extents in layer cs TODO...maybe make a little nested table to improve layout...
myMetadataQString += "<tr><td bgcolor=\"white\">";
myMetadataQString += tr("In layer spatial reference system units : ") +
tr("xMin,yMin ") +
QString::number(myExtent.xMin()) +
"," +
QString::number( myExtent.yMin()) +
tr(" : xMax,yMax ") +
QString::number(myExtent.xMax()) +
"," +
QString::number(myExtent.yMax());
myMetadataQString += "</td></tr>";
//extents in project cs
try
{
/*
// TODO: currently disabled, will revisit later [MD]
QgsRect myProjectedExtent = coordinateTransform->transformBoundingBox(layer->extent());
myMetadataQString += "<tr><td bgcolor=\"white\">";
myMetadataQString += tr("In project spatial reference system units : ") +
tr("xMin,yMin ") +
QString::number(myProjectedExtent.xMin()) +
"," +
QString::number( myProjectedExtent.yMin()) +
tr(" : xMax,yMax ") +
QString::number(myProjectedExtent.xMax()) +
"," +
QString::number(myProjectedExtent.yMax());
myMetadataQString += "</td></tr>";
*/
//
// Display layer spatial ref system
//
myMetadataQString += "<tr><td bgcolor=\"gray\">";
myMetadataQString += tr("Layer Spatial Reference System:");
myMetadataQString += "</td></tr>";
myMetadataQString += "<tr><td bgcolor=\"white\">";
myMetadataQString += layer->srs().proj4String().replace(QRegExp("\"")," \"");
myMetadataQString += "</td></tr>";
//
// Display project (output) spatial ref system
//
/*
// TODO: disabled for now, will revisit later [MD]
myMetadataQString += "<tr><td bgcolor=\"gray\">";
myMetadataQString += tr("Project (Output) Spatial Reference System:");
myMetadataQString += "</td></tr>";
myMetadataQString += "<tr><td bgcolor=\"white\">";
myMetadataQString += coordinateTransform->destSRS().proj4String().replace(QRegExp("\"")," \"");
myMetadataQString += "</td></tr>";
*/
}
catch(QgsCsException &cse)
{
UNUSED(cse);
QgsDebugMsg( cse.what() );
myMetadataQString += "<tr><td bgcolor=\"white\">";
myMetadataQString += tr("In project spatial reference system units : ");
myMetadataQString += " (Invalid transformation of layer extents) ";
myMetadataQString += "</td></tr>";
}
//
// Add the info about each field in the attribute table
//
myMetadataQString += "<tr><td bgcolor=\"gray\">";
myMetadataQString += tr("Attribute field info:");
myMetadataQString += "</td></tr>";
myMetadataQString += "<tr><td bgcolor=\"white\">";
// Start a nested table in this trow
myMetadataQString += "<table width=\"100%\">";
myMetadataQString += "<tr><th bgcolor=\"black\">";
myMetadataQString += "<font color=\"white\">" + tr("Field") + "</font>";
myMetadataQString += "</th>";
myMetadataQString += "<th bgcolor=\"black\">";
myMetadataQString += "<font color=\"white\">" + tr("Type") + "</font>";
myMetadataQString += "</th>";
myMetadataQString += "<th bgcolor=\"black\">";
myMetadataQString += "<font color=\"white\">" + tr("Length") + "</font>";
myMetadataQString += "</th>";
myMetadataQString += "<th bgcolor=\"black\">";
myMetadataQString += "<font color=\"white\">" + tr("Precision") + "</font>";
myMetadataQString += "</th>";
myMetadataQString += "<th bgcolor=\"black\">";
myMetadataQString += "<font color=\"white\">" + tr("Comment") + "</font>";
myMetadataQString += "</th>";
//get info for each field by looping through them
QgsVectorDataProvider *myDataProvider = dynamic_cast<QgsVectorDataProvider *>(layer->getDataProvider());
const QgsFieldMap& myFields = myDataProvider->fields();
for (QgsFieldMap::const_iterator it = myFields.begin(); it != myFields.end(); ++it)
{
const QgsField& myField = *it;
myMetadataQString += "<tr><td bgcolor=\"white\">";
myMetadataQString += myField.name();
myMetadataQString += "</td>";
myMetadataQString += "<td bgcolor=\"white\">";
myMetadataQString += myField.typeName();
myMetadataQString += "</td>";
myMetadataQString += "<td bgcolor=\"white\">";
myMetadataQString += QString("%1").arg(myField.length());
myMetadataQString += "</td>";
myMetadataQString += "<td bgcolor=\"white\">";
myMetadataQString += QString("%1").arg(myField.precision());
myMetadataQString += "</td>";
myMetadataQString += "<td bgcolor=\"white\">";
myMetadataQString += QString("%1").arg(myField.comment());
myMetadataQString += "</td></tr>";
}
//close field list
myMetadataQString += "</table>"; //end of nested table
myMetadataQString += "</td></tr>"; //end of stats container table row
//
// Close the table
//
myMetadataQString += "</table>";
myMetadataQString += "</body></html>";
return myMetadataQString;
}
void QgsVectorLayerProperties::on_pbnChangeSpatialRefSys_clicked()
{
QgsLayerProjectionSelector * mySelector = new QgsLayerProjectionSelector(this);
mySelector->setSelectedSRSID(layer->srs().srsid());
if(mySelector->exec())
{
QgsSpatialRefSys srs(mySelector->getCurrentSRSID(), QgsSpatialRefSys::QGIS_SRSID);
layer->setSrs(srs);
}
else
{
QApplication::restoreOverrideCursor();
}
delete mySelector;
leSpatialRefSys->setText(layer->srs().proj4String());
leSpatialRefSys->setCursorPosition(0);
}