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vector info
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git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@4981 c8812cc2-4d05-0410-92ff-de0c093fc19c
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rblazek committed Mar 8, 2006
1 parent c7edc87 commit c603974
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Showing 2 changed files with 171 additions and 32 deletions.
2 changes: 2 additions & 0 deletions src/plugins/grass/qgsgrassbrowser.cpp
View file
Expand Up @@ -36,6 +36,7 @@
#include <QTextBrowser>
#include <QSplitter>
#include <QProcess>
#include <QScrollBar>

#include "qgis.h"
#include "qgsapplication.h"
Expand Down Expand Up @@ -234,6 +235,7 @@ void QgsGrassBrowser::selectionChanged(const QItemSelection & selected, const QI
for (; it != indexes.end(); ++it)
{
mTextBrowser->append ( mModel->itemInfo(*it) );
mTextBrowser->verticalScrollBar()->setValue(0);

int type = mModel->itemType(*it);
if ( type == QgsGrassModel::Raster || type == QgsGrassModel::VectorLayer )
Expand Down
201 changes: 169 additions & 32 deletions src/plugins/grass/qgsgrassmodel.cpp
View file
Expand Up @@ -31,16 +31,19 @@
#include <QTreeWidgetItem>
#include <QModelIndex>
#include <QVariant>
#include <QRegExp>

#include "qgis.h"
#include "qgsapplication.h"
#include "qgsfeatureattribute.h" // TODO: remove - this is only for qgsgrassprovider.h

extern "C" {
#include <grass/gis.h>
#include <grass/Vect.h>
}

#include "../../src/providers/grass/qgsgrass.h"
#include "../../src/providers/grass/qgsgrassprovider.h"
#include "qgsgrassmodel.h"
#include "qgsgrassselect.h"

Expand Down Expand Up @@ -124,6 +127,7 @@ QVariant QgsGrassModelItem::data (int role)

QString QgsGrassModelItem::info()
{
QString tblStart = "<table border=1 cellspacing=1 cellpadding=1>";
switch ( mType )
{
case QgsGrassModel::Location:
Expand All @@ -136,56 +140,52 @@ QString QgsGrassModelItem::info()
case QgsGrassModel::Rasters:
return "Location: " + mLocation + "<br>Mapset: " + mMapset;
break;
case QgsGrassModel::Vector:
return "Vector: " + mMap;
case QgsGrassModel::Raster:
{
QString nl = "<br>";
QString str = "<b>Raster: " + mMap + "</b>" + nl;
QString str = tblStart;
str += htmlTableRow("<b>Raster</b>", "<b>" + mMap + "</b>" );

struct Cell_head head;
QgsGrass::setLocation( mGisbase, mLocation );

if( G_get_cellhd( mMap.toLocal8Bit().data(),
mMapset.toLocal8Bit().data(), &head) != 0 )
{
str += "Cannot open raster header" + nl;
str += "<tr><td colspan=2>Cannot open raster header</td></tr>";
}
else
{
//str += QString::number(head.rows) + " rows" + nl;
str += "<table border=1 cellspacing=1 cellpadding=1>";
str += htmlTableRow ( "rows", QString::number(head.rows));
str += htmlTableRow ( "columns", QString::number(head.cols) );
str += htmlTableRow ( "Rows", QString::number(head.rows));
str += htmlTableRow ( "Columns", QString::number(head.cols) );
str += htmlTableRow ( "N-S resolution", QString::number(head.ns_res) );
str += htmlTableRow ( "E-W resolution", QString::number(head.ew_res) );
str += htmlTableRow ( "north", QString::number(head.north) );
str += htmlTableRow ( "south", QString::number(head.south) );
str += htmlTableRow ( "east", QString::number(head.east) );
str += htmlTableRow ( "west", QString::number(head.west) );
str += "</table>";
str += htmlTableRow ( "North", QString::number(head.north) );
str += htmlTableRow ( "South", QString::number(head.south) );
str += htmlTableRow ( "East", QString::number(head.east) );
str += htmlTableRow ( "West", QString::number(head.west) );

int rasterType = G_raster_map_type( mMap.toLocal8Bit().data(),
mMapset.toLocal8Bit().data() );

QString format;
if( rasterType == CELL_TYPE )
{
str += "integer (" + QString::number(head.format);
str += head.format==0 ? " byte)" : "bytes)";
format = "integer (" + QString::number(head.format);
format += head.format==0 ? " byte)" : "bytes)";
}
else if( rasterType == FCELL_TYPE )
{
str += "floating point (4 bytes)";
format += "floating point (4 bytes)";
}
else if( rasterType == DCELL_TYPE )
{
str += "floating point (8 bytes)";
format += "floating point (8 bytes)";
}
else
{
str += "unknown";
format += "unknown";
}
str += " format" + nl;
str += htmlTableRow ( "Format", format );
}

struct FPRange range;
Expand All @@ -195,31 +195,168 @@ QString QgsGrassModelItem::info()
double min, max;
G_get_fp_range_min_max( &range, &min, &max );

str += QString::number(min) + " minimum value" + nl;
str += QString::number(max) + " maximum value" + nl;
str += htmlTableRow ( "Minimum value", QString::number(min));
str += htmlTableRow ( "Maximum value", QString::number(max));
}


struct History hist;
if ( G_read_history( mMap.toLocal8Bit().data(),
mMapset.toLocal8Bit().data(), &hist) >= 0 )
{
str += "Data source: " + QString(hist.datsrc_1) + " "
+ QString(hist.datsrc_2) + nl;
str += "Data description: " + QString(hist.keywrd) + nl;
str += "Comments: " + nl;
for (int i = 0; i < hist.edlinecnt; i++)
{
str += QString(hist.edhist[i]) + nl;
}
if ( QString(hist.datsrc_1).length() > 0
|| QString(hist.datsrc_2).length() > 0 )
{
str += htmlTableRow ( "Data source", QString(hist.datsrc_1) + " "
+ QString(hist.datsrc_2) );
}
if ( QString(hist.keywrd).length() > 0 )
{
str += htmlTableRow ( "Data description", QString(hist.keywrd) );
}
if ( hist.edlinecnt > 0 )
{
QString h;
for (int i = 0; i < hist.edlinecnt; i++)
{
h += QString(hist.edhist[i]) + "<br>";
}
str += htmlTableRow ( "Comments", h);
}
}
str += "</table>";

return str;
}
break;

case QgsGrassModel::Vector:
{
QString str = tblStart;
str += htmlTableRow("<b>Vector</b>", "<b>" + mMap + "</b>" );

QgsGrass::setLocation( mGisbase, mLocation );

struct Map_info Map;
int level = Vect_open_old_head ( &Map, mMap.toLocal8Bit().data(),
mMapset.toLocal8Bit().data());

if ( level >= 2 )
{
int is3d = Vect_is_3d (&Map);

// Number of elements
str += htmlTableRow ( "Points", QString::number(Vect_get_num_primitives(&Map, GV_POINT)) );
str += htmlTableRow ( "Lines", QString::number(Vect_get_num_primitives(&Map, GV_LINE)) );
str += htmlTableRow ( "Boundaries", QString::number(Vect_get_num_primitives(&Map, GV_BOUNDARY)) );
str += htmlTableRow ( "Centroids", QString::number(Vect_get_num_primitives(&Map, GV_CENTROID)) );
if ( is3d )
{
str += htmlTableRow ( "Faces", QString::number( Vect_get_num_primitives(&Map, GV_FACE) ) );
str += htmlTableRow ( "Kernels", QString::number( Vect_get_num_primitives(&Map, GV_KERNEL) ) );
}

str += htmlTableRow ( "Areas", QString::number(Vect_get_num_areas(&Map)) );
str += htmlTableRow ( "Islands", QString::number( Vect_get_num_islands(&Map) ) );


// Box and dimension
BOUND_BOX box;
char buffer[100];

Vect_get_map_box (&Map, &box );
int proj = Vect_get_proj(&Map);

G_format_northing (box.N, buffer, proj);
str += htmlTableRow ( "North", QString(buffer) );
G_format_northing (box.S, buffer, proj);
str += htmlTableRow ( "South", QString(buffer) );
G_format_easting (box.E, buffer, proj );
str += htmlTableRow ( "East", QString(buffer) );
G_format_easting (box.W, buffer, proj );
str += htmlTableRow ( "West", QString(buffer) );
if ( is3d )
{
str += htmlTableRow ( "Top", QString::number(box.T) );
str += htmlTableRow ( "Bottom", QString::number(box.B) );
}

str += htmlTableRow ( "3D", is3d ? "yes" : "no" );

str += "</table>";

// History
Vect_hist_rewind ( &Map );
char hbuffer[1001];
str += "<p>History<br>";
QRegExp rx ( "^-+$" );
while ( Vect_hist_read ( hbuffer, 1000, &Map ) != NULL ) {
QString row = QString(hbuffer);
if ( rx.search ( row ) != -1 )
{
str += "<hr>";
}
else
{
str += row + "<br>";
}
}
}
else
{
str += "</table>";
}

Vect_close (&Map);
return str;
}
break;

case QgsGrassModel::VectorLayer:
return "Vector: " + mMap + "<br>Layer: " + mLayer;
break;
{
QString str = tblStart;
str += htmlTableRow("<b>Vector</b>", "<b>" + mMap + "</b>" );
str += htmlTableRow("<b>Layer</b>", "<b>" + mLayer + "</b>" );

QgsGrass::setLocation( mGisbase, mLocation );

struct Map_info Map;
int level = Vect_open_old_head ( &Map, mMap.toLocal8Bit().data(),
mMapset.toLocal8Bit().data());

if ( level >= 2 )
{
struct field_info *fi;

int field = QgsGrassProvider::grassLayer(mLayer);
if ( field != -1 )
{
// Number of features
int type = QgsGrassProvider::grassLayerType(mLayer);
if (type != -1 )
{
str += htmlTableRow("Features",
QString::number(Vect_cidx_get_type_count(&Map, field, type)) );
}

fi = Vect_get_field ( &Map, field);

// Database link
if ( fi )
{
str += htmlTableRow("Driver", QString(fi->driver) );
str += htmlTableRow("Database", QString(fi->database) );
str += htmlTableRow("Table", QString(fi->table) );
str += htmlTableRow("Key column", QString(fi->key) );
}
}
}
str += "</table>";

Vect_close (&Map);
return str;
}
break;
}
return QString();
}
Expand Down

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