/
qgscustomprojectiondialog.cpp
1097 lines (996 loc) · 36.4 KB
/
qgscustomprojectiondialog.cpp
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/***************************************************************************
qgscustomprojectiondialog.cpp
-------------------
begin : 2005
copyright : (C) 2005 by Tim Sutton
email : tim@linfiniti.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. *
* *
***************************************************************************/
#include "qgscustomprojectiondialog.h"
//qgis includes
#include "qgis.h" //<--magick numbers
#include "qgsapplication.h"
#include "qgslogger.h"
//qt includes
#include <QFileInfo>
#include <QMessageBox>
//stdc++ includes
#include <cassert>
#include <fstream>
#include <iostream>
#include <sqlite3.h>
//proj4 includes
extern "C"{
#include <proj_api.h>
}
QgsCustomProjectionDialog::QgsCustomProjectionDialog(QWidget *parent, Qt::WFlags fl)
: QDialog(parent, fl)
{
setupUi(this);
QString myThemePath = QgsApplication::themePath();
pbnFirst->setIcon(QPixmap(myThemePath+"mIconFirst.png"));
QString myString = "Setting first button to : " + myThemePath+"mIconFirst.png";
qDebug(myString.toLocal8Bit());
pbnPrevious->setIcon(QPixmap(myThemePath+"mIconPrevious.png"));
pbnNext->setIcon(QPixmap(myThemePath+"mIconNext.png"));
pbnLast->setIcon(QPixmap(myThemePath+"mIconLast.png"));
pbnNew->setIcon(QPixmap(myThemePath+"mIconNew.png"));
pbnSave->setIcon(QPixmap(myThemePath+"mActionFileSave.png"));
pbnDelete->setIcon(QPixmap(myThemePath+"mIconDelete.png"));
// user database is created at QGIS startup in QgisApp::createDB
// we just check whether there is our database [MD]
QFileInfo myFileInfo;
myFileInfo.setFile(QgsApplication::qgisSettingsDirPath());
if ( !myFileInfo.exists( ) )
{
#ifdef QGISDEBUG
std::cout << "The qgis.db does not exist" << std::endl;
#endif
}
//
// Setup member vars
//
mCurrentRecordId="";
//
// Set up databound controls
//
// deprecated methods
//getProjList();
//getEllipsoidList();
mRecordCountLong=getRecordCount();
if (mRecordCountLong > 0)
on_pbnFirst_clicked();
else
on_pbnNew_clicked();
//automatically go to insert mode if there are not recs yet
if (mRecordCountLong<1)
{
on_pbnNew_clicked();
}
}
QgsCustomProjectionDialog::~QgsCustomProjectionDialog()
{
}
/*
* These two methods will be deprecated
*
void QgsCustomProjectionDialog::getProjList ()
{
//
// Populate the projection combo
//
sqlite3 *myDatabase;
const char *myTail;
sqlite3_stmt *myPreparedStatement;
int myResult;
//check the db is available
myResult = sqlite3_open(QgsApplication::qgisUserDbFilePath().toUtf8().data(), &myDatabase);
if(myResult)
{
std::cout << "Can't open database: " << sqlite3_errmsg(myDatabase) << std::endl;
// XXX This will likely never happen since on open, sqlite creates the
// database if it does not exist.
assert(myResult == 0);
}
// Set up the query to retreive the projection information needed to populate the PROJECTION list
QString mySql = "select * from tbl_projection order by name";
myResult = sqlite3_prepare(myDatabase, mySql.toUtf8(), mySql.length(), &myPreparedStatement, &myTail);
// XXX Need to free memory from the error msg if one is set
if(myResult == SQLITE_OK)
{
while(sqlite3_step(myPreparedStatement) == SQLITE_ROW)
{
cboProjectionFamily->insertItem(QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,1)));
}
}
sqlite3_finalize(myPreparedStatement);
sqlite3_close(myDatabase);
}
void QgsCustomProjectionDialog::getEllipsoidList()
{
//
// Populate the ellipsoid combo
//
sqlite3 *myDatabase;
const char *myTail;
sqlite3_stmt *myPreparedStatement;
int myResult;
//check the db is available
myResult = sqlite3_open(QgsApplication::qgisUserDbFilePath().toUtf8().data(), &myDatabase);
if(myResult)
{
std::cout << "Can't open database: " << sqlite3_errmsg(myDatabase) << std::endl;
// XXX This will likely never happen since on open, sqlite creates the
// database if it does not exist.
assert(myResult == 0);
}
// Set up the query to retreive the projection information needed to populate the ELLIPSOID list
QString mySql = "select * from tbl_ellipsoid order by name";
myResult = sqlite3_prepare(myDatabase, mySql.toUtf8(), mySql.length(), &myPreparedStatement, &myTail);
// XXX Need to free memory from the error msg if one is set
if(myResult == SQLITE_OK)
{
while(sqlite3_step(myPreparedStatement) == SQLITE_ROW)
{
cboEllipsoid->insertItem(QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,1)));
}
}
// close the sqlite3 statement
sqlite3_finalize(myPreparedStatement);
sqlite3_close(myDatabase);
}
*/
void QgsCustomProjectionDialog::on_pbnDelete_clicked()
{
if (QMessageBox::Yes!=QMessageBox::warning(
this,
tr("Delete Projection Definition?"),
tr("Deleting a projection definition is not reversable. Do you want to delete it?"),
QMessageBox::Ok | QMessageBox::Cancel ) )
{
return ;
}
sqlite3 *myDatabase;
const char *myTail;
sqlite3_stmt *myPreparedStatement;
int myResult;
QString myName;
//check the db is available
myResult = sqlite3_open(QgsApplication::qgisUserDbFilePath().toUtf8().data(), &myDatabase);
if(myResult)
{
std::cout << "Can't open database: " << sqlite3_errmsg(myDatabase) << std::endl;
// XXX This will likely never happen since on open, sqlite creates the
// database if it does not exist.
assert(myResult == 0);
}
// Set up the query to retreive the projection information needed to populate the ELLIPSOID list
QString mySql = "delete from tbl_srs where srs_id='" + mCurrentRecordId + "'";
myResult = sqlite3_prepare(myDatabase, mySql.toUtf8(), mySql.length(), &myPreparedStatement, &myTail);
// XXX Need to free memory from the error msg if one is set
#ifdef QGISDEBUG
std::cout << "Query to delete current:" << mySql.toLocal8Bit().data() << std::endl;
#endif
if(myResult == SQLITE_OK)
{
sqlite3_step(myPreparedStatement);
}
// close the sqlite3 statement
sqlite3_finalize(myPreparedStatement);
sqlite3_close(myDatabase);
//move to an appropriate rec now this one is gone
--mRecordCountLong;
if (mRecordCountLong < 1)
{
on_pbnNew_clicked();
}
else if (mCurrentRecordLong==1)
{
on_pbnFirst_clicked();
}
else if (mCurrentRecordLong>mRecordCountLong)
{
on_pbnLast_clicked();
}
else
{
mCurrentRecordLong=mCurrentRecordLong-2;
on_pbnNext_clicked();
}
return ;
}
void QgsCustomProjectionDialog::on_pbnClose_clicked()
{
close();
}
long QgsCustomProjectionDialog::getRecordCount()
{
sqlite3 *myDatabase;
const char *myTail;
sqlite3_stmt *myPreparedStatement;
int myResult;
long myRecordCount=0;
//check the db is available
myResult = sqlite3_open(QgsApplication::qgisUserDbFilePath().toUtf8().data(), &myDatabase);
if(myResult)
{
std::cout << "Can't open database: " << sqlite3_errmsg(myDatabase) << std::endl;
// XXX This will likely never happen since on open, sqlite creates the
// database if it does not exist.
assert(myResult == 0);
}
// Set up the query to retreive the projection information needed to populate the ELLIPSOID list
QString mySql = "select count(*) from tbl_srs";
myResult = sqlite3_prepare(myDatabase, mySql.toUtf8(), mySql.length(), &myPreparedStatement, &myTail);
// XXX Need to free memory from the error msg if one is set
if(myResult == SQLITE_OK)
{
if (sqlite3_step(myPreparedStatement) == SQLITE_ROW)
{
QString myRecordCountString = QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,0));
myRecordCount=myRecordCountString.toLong();
}
}
// close the sqlite3 statement
sqlite3_finalize(myPreparedStatement);
sqlite3_close(myDatabase);
return myRecordCount;
}
QString QgsCustomProjectionDialog::getProjectionFamilyName(QString theProjectionFamilyAcronym)
{
sqlite3 *myDatabase;
const char *myTail;
sqlite3_stmt *myPreparedStatement;
int myResult;
QString myName;
//check the db is available
myResult = sqlite3_open(QgsApplication::qgisUserDbFilePath().toUtf8().data(), &myDatabase);
if(myResult)
{
std::cout << "Can't open database: " << sqlite3_errmsg(myDatabase) << std::endl;
// XXX This will likely never happen since on open, sqlite creates the
// database if it does not exist.
assert(myResult == 0);
}
// Set up the query to retreive the projection information needed to populate the ELLIPSOID list
QString mySql = "select name from tbl_projection where acronym='" + theProjectionFamilyAcronym + "'";
myResult = sqlite3_prepare(myDatabase, mySql.toUtf8(), mySql.length(), &myPreparedStatement, &myTail);
// XXX Need to free memory from the error msg if one is set
if(myResult == SQLITE_OK)
{
if (sqlite3_step(myPreparedStatement) == SQLITE_ROW)
myName = QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,0));
}
// close the sqlite3 statement
sqlite3_finalize(myPreparedStatement);
sqlite3_close(myDatabase);
return myName;
}
QString QgsCustomProjectionDialog::getEllipsoidName(QString theEllipsoidAcronym)
{
sqlite3 *myDatabase;
const char *myTail;
sqlite3_stmt *myPreparedStatement;
int myResult;
QString myName;
//check the db is available
myResult = sqlite3_open(QgsApplication::qgisUserDbFilePath().toUtf8().data(), &myDatabase);
if(myResult)
{
std::cout << "Can't open database: " << sqlite3_errmsg(myDatabase) << std::endl;
// XXX This will likely never happen since on open, sqlite creates the
// database if it does not exist.
assert(myResult == 0);
}
// Set up the query to retreive the projection information needed to populate the ELLIPSOID list
QString mySql = "select name from tbl_ellipsoid where acronym='" + theEllipsoidAcronym + "'";
myResult = sqlite3_prepare(myDatabase, mySql.toUtf8(), mySql.length(), &myPreparedStatement, &myTail);
// XXX Need to free memory from the error msg if one is set
if(myResult == SQLITE_OK)
{
if (sqlite3_step(myPreparedStatement) == SQLITE_ROW)
myName = QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,0));
}
// close the sqlite3 statement
sqlite3_finalize(myPreparedStatement);
sqlite3_close(myDatabase);
return myName;
}
QString QgsCustomProjectionDialog::getProjectionFamilyAcronym(QString theProjectionFamilyName)
{
sqlite3 *myDatabase;
const char *myTail;
sqlite3_stmt *myPreparedStatement;
int myResult;
QString myName;
//check the db is available
myResult = sqlite3_open(QgsApplication::qgisUserDbFilePath().toUtf8().data(), &myDatabase);
if(myResult)
{
std::cout << "Can't open database: " << sqlite3_errmsg(myDatabase) << std::endl;
// XXX This will likely never happen since on open, sqlite creates the
// database if it does not exist.
assert(myResult == 0);
}
// Set up the query to retreive the projection information needed to populate the ELLIPSOID list
QString mySql = "select acronym from tbl_projection where name='" + theProjectionFamilyName + "'";
myResult = sqlite3_prepare(myDatabase, mySql.toUtf8(), mySql.length(), &myPreparedStatement, &myTail);
// XXX Need to free memory from the error msg if one is set
if(myResult == SQLITE_OK)
{
if (sqlite3_step(myPreparedStatement) == SQLITE_ROW)
myName = QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,0));
}
// close the sqlite3 statement
sqlite3_finalize(myPreparedStatement);
sqlite3_close(myDatabase);
return myName;
}
QString QgsCustomProjectionDialog::getEllipsoidAcronym(QString theEllipsoidName)
{
sqlite3 *myDatabase;
const char *myTail;
sqlite3_stmt *myPreparedStatement;
int myResult;
QString myName;
//check the db is available
myResult = sqlite3_open(QgsApplication::qgisUserDbFilePath().toUtf8().data(), &myDatabase);
if(myResult)
{
std::cout << "Can't open database: " << sqlite3_errmsg(myDatabase) << std::endl;
// XXX This will likely never happen since on open, sqlite creates the
// database if it does not exist.
assert(myResult == 0);
}
// Set up the query to retreive the projection information needed to populate the ELLIPSOID list
QString mySql = "select acronym from tbl_ellipsoid where name='" + theEllipsoidName + "'";
myResult = sqlite3_prepare(myDatabase, mySql.toUtf8(), mySql.length(), &myPreparedStatement, &myTail);
// XXX Need to free memory from the error msg if one is set
if(myResult == SQLITE_OK)
{
if (sqlite3_step(myPreparedStatement) == SQLITE_ROW)
myName = QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,0));
}
// close the sqlite3 statement
sqlite3_finalize(myPreparedStatement);
sqlite3_close(myDatabase);
return myName;
}
void QgsCustomProjectionDialog::on_pbnFirst_clicked()
{
#ifdef QGISDEBUG
std::cout << "QgsCustomProjectionDialog::on_pbnFirst_clicked()" << std::endl;
#endif
sqlite3 *myDatabase;
const char *myTail;
sqlite3_stmt *myPreparedStatement;
int myResult;
//check the db is available
myResult = sqlite3_open(QgsApplication::qgisUserDbFilePath().toUtf8().data(), &myDatabase);
if(myResult)
{
std::cout << "Can't open database: " << sqlite3_errmsg(myDatabase) << std::endl;
// XXX This will likely never happen since on open, sqlite creates the
// database if it does not exist.
assert(myResult == 0);
}
QString mySql = "select * from tbl_srs order by srs_id limit 1";
#ifdef QGISDEBUG
std::cout << "Query to move first:" << mySql.toLocal8Bit().data() << std::endl;
#endif
myResult = sqlite3_prepare(myDatabase, mySql.toUtf8(), mySql.length(), &myPreparedStatement, &myTail);
// XXX Need to free memory from the error msg if one is set
if(myResult == SQLITE_OK)
{
if (sqlite3_step(myPreparedStatement) == SQLITE_ROW)
{
mCurrentRecordId = QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,0));
leName->setText(QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,1)));
//QString myProjectionFamilyId = QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,2));
//cboProjectionFamily->setCurrentText(getProjectionFamilyName(myProjectionFamilyId));
//QString myEllipsoidId = QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,3));
//cboEllipsoid->setCurrentText(getEllipsoidName(myEllipsoidId));
leParameters->setText(QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,4)));
mCurrentRecordLong=1;
lblRecordNo->setText(QString::number(mCurrentRecordLong) + " of " + QString::number(mRecordCountLong));
}
}
else
{
#ifdef QGISDEBUG
std::cout << "pbnFirst query failed: " << mySql.toLocal8Bit().data() << std::endl;
#endif
}
sqlite3_finalize(myPreparedStatement);
sqlite3_close(myDatabase);
//enable nav buttons as appropriate
pbnFirst->setEnabled(false);
pbnPrevious->setEnabled(false);
//automatically go to insert mode if there are not recs yet
if (mRecordCountLong < 1)
{
on_pbnNew_clicked();
pbnDelete->setEnabled(false);
}
else if (mCurrentRecordLong==mRecordCountLong)
{
pbnNext->setEnabled(false);
pbnLast->setEnabled(false);
pbnDelete->setEnabled(true);
}
else
{
pbnNext->setEnabled(true);
pbnLast->setEnabled(true);
pbnDelete->setEnabled(true);
}
}
void QgsCustomProjectionDialog::on_pbnPrevious_clicked()
{
#ifdef QGISDEBUG
std::cout << "QgsCustomProjectionDialog::on_pbnPrevious_clicked()" << std::endl;
#endif
if (mCurrentRecordLong <= 1)
{
return;
}
sqlite3 *myDatabase;
const char *myTail;
sqlite3_stmt *myPreparedStatement;
int myResult;
//check the db is available
myResult = sqlite3_open(QgsApplication::qgisUserDbFilePath().toUtf8().data(), &myDatabase);
if(myResult)
{
std::cout << "Can't open database: " << sqlite3_errmsg(myDatabase) << std::endl;
// XXX This will likely never happen since on open, sqlite creates the
// database if it does not exist.
assert(myResult == 0);
}
QString mySql = "select * from tbl_srs where srs_id < " + mCurrentRecordId + " order by srs_id desc limit 1";
#ifdef QGISDEBUG
std::cout << "Query to move previous:" << mySql.toLocal8Bit().data() << std::endl;
#endif
myResult = sqlite3_prepare(myDatabase, mySql.toUtf8(), mySql.length(), &myPreparedStatement, &myTail);
// XXX Need to free memory from the error msg if one is set
if(myResult == SQLITE_OK)
{
if (sqlite3_step(myPreparedStatement) == SQLITE_ROW)
{
mCurrentRecordId = QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,0));
leName->setText(QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,1)));
//QString myProjectionFamilyId = QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,2));
//cboProjectionFamily->setCurrentText(getProjectionFamilyName(myProjectionFamilyId));
//QString myEllipsoidId = QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,3));
//cboEllipsoid->setCurrentText(getEllipsoidName(myEllipsoidId));
leParameters->setText(QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,4))),
--mCurrentRecordLong;
lblRecordNo->setText(QString::number(mCurrentRecordLong) + " of " + QString::number(mRecordCountLong));
}
}
else
{
#ifdef QGISDEBUG
std::cout << "pbnPrevious query failed: " << mySql.toLocal8Bit().data() << std::endl;
#endif
}
sqlite3_finalize(myPreparedStatement);
sqlite3_close(myDatabase);
//enable nav buttons as appropriate
if (mCurrentRecordLong<= 1)
{
pbnFirst->setEnabled(false);
pbnPrevious->setEnabled(false);
}
else
{
pbnFirst->setEnabled(true);
pbnPrevious->setEnabled(true);
}
if (mCurrentRecordLong==mRecordCountLong)
{
pbnNext->setEnabled(false);
pbnLast->setEnabled(false);
}
else
{
pbnNext->setEnabled(true);
pbnLast->setEnabled(true);
}
}
void QgsCustomProjectionDialog::on_pbnNext_clicked()
{
#ifdef QGISDEBUG
std::cout << "QgsCustomProjectionDialog::on_pbnNext_clicked()" << std::endl;
#endif
if (mCurrentRecordLong >= mRecordCountLong)
{
return;
}
sqlite3 *myDatabase;
const char *myTail;
sqlite3_stmt *myPreparedStatement;
int myResult;
//check the db is available
myResult = sqlite3_open(QgsApplication::qgisUserDbFilePath().toUtf8().data(), &myDatabase);
if(myResult)
{
std::cout << "Can't open database: " << sqlite3_errmsg(myDatabase) << std::endl;
// XXX This will likely never happen since on open, sqlite creates the
// database if it does not exist.
assert(myResult == 0);
}
QString mySql = "select * from tbl_srs where srs_id > " + mCurrentRecordId + " order by srs_id asc limit 1";
#ifdef QGISDEBUG
std::cout << "Query to move next:" << mySql.toLocal8Bit().data() << std::endl;
#endif
myResult = sqlite3_prepare(myDatabase, mySql.toUtf8(), mySql.length(), &myPreparedStatement, &myTail);
// XXX Need to free memory from the error msg if one is set
if(myResult == SQLITE_OK)
{
if (sqlite3_step(myPreparedStatement) == SQLITE_ROW)
{
mCurrentRecordId = QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,0));
leName->setText(QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,1)));
//QString myProjectionFamilyId = QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,2));
//cboProjectionFamily->setCurrentText(getProjectionFamilyName(myProjectionFamilyId));
//QString myEllipsoidId = QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,3));
//cboEllipsoid->setCurrentText(getEllipsoidName(myEllipsoidId));
leParameters->setText(QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,4)));
++mCurrentRecordLong;
lblRecordNo->setText(QString::number(mCurrentRecordLong) + " of " + QString::number(mRecordCountLong));
}
}
else
{
#ifdef QGISDEBUG
std::cout << "pbnNext query failed: " << mySql.toLocal8Bit().data() << std::endl;
#endif
}
sqlite3_finalize(myPreparedStatement);
sqlite3_close(myDatabase);
//enable nav buttons as appropriate
if (mCurrentRecordLong==mRecordCountLong)
{
pbnNext->setEnabled(false);
pbnLast->setEnabled(false);
}
else
{
pbnNext->setEnabled(true);
pbnLast->setEnabled(true);
}
if (mRecordCountLong <= 1)
{
pbnFirst->setEnabled(false);
pbnPrevious->setEnabled(false);
}
else
{
pbnFirst->setEnabled(true);
pbnPrevious->setEnabled(true);
}
}
void QgsCustomProjectionDialog::on_pbnLast_clicked()
{
#ifdef QGISDEBUG
std::cout << "QgsCustomProjectionDialog::on_pbnLast_clicked()" << std::endl;
#endif
sqlite3 *myDatabase;
const char *myTail;
sqlite3_stmt *myPreparedStatement;
int myResult;
//check the db is available
myResult = sqlite3_open(QgsApplication::qgisUserDbFilePath().toUtf8().data(), &myDatabase);
if(myResult)
{
std::cout << "Can't open database: " << sqlite3_errmsg(myDatabase) << std::endl;
// XXX This will likely never happen since on open, sqlite creates the
// database if it does not exist.
assert(myResult == 0);
}
QString mySql = "select * from tbl_srs order by srs_id desc limit 1";
#ifdef QGISDEBUG
std::cout << "Query to move last:" << mySql.toLocal8Bit().data() << std::endl;
#endif
myResult = sqlite3_prepare(myDatabase, mySql.toUtf8(), mySql.length(), &myPreparedStatement, &myTail);
// XXX Need to free memory from the error msg if one is set
if(myResult == SQLITE_OK)
{
if (sqlite3_step(myPreparedStatement) == SQLITE_ROW)
{
mCurrentRecordId = QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,0));
leName->setText(QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,1)));
//QString myProjectionFamilyId = QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,2));
//cboProjectionFamily->setCurrentText(getProjectionFamilyName(myProjectionFamilyId));
//QString myEllipsoidId = QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,3));
//cboEllipsoid->setCurrentText(getEllipsoidName(myEllipsoidId));
leParameters->setText(QString::fromUtf8((char *)sqlite3_column_text(myPreparedStatement,4)));
mCurrentRecordLong =mRecordCountLong;
lblRecordNo->setText(QString::number(mCurrentRecordLong) + " of " + QString::number(mRecordCountLong));
}
}
else
{
#ifdef QGISDEBUG
std::cout << "pbnLast query failed: " << mySql.toLocal8Bit().data() << std::endl;
#endif
}
sqlite3_finalize(myPreparedStatement);
sqlite3_close(myDatabase);
//enable nav buttons as appropriate
pbnNext->setEnabled(false);
pbnLast->setEnabled(false);
if (mRecordCountLong <= 1)
{
pbnFirst->setEnabled(false);
pbnPrevious->setEnabled(false);
}
else
{
pbnFirst->setEnabled(true);
pbnPrevious->setEnabled(true);
}
}
void QgsCustomProjectionDialog::on_pbnNew_clicked()
{
if (pbnNew->text()==tr("Abort"))
{
//if we get here, user has aborted add record
QString myThemePath = QgsApplication::themePath();
pbnNew->setIcon(QPixmap(myThemePath+"mIconNew.png"));
//next line needed for new/abort logic
pbnNew->setText(tr("New"));
//get back to the last used record before insert was pressed
if (mCurrentRecordId.isEmpty())
{
on_pbnFirst_clicked();
}
else
{
mCurrentRecordLong=mLastRecordLong;
on_pbnNext_clicked();
}
}
else
{
//if we get here user has elected to add new record
pbnFirst->setEnabled(false);
pbnPrevious->setEnabled(false);
pbnNext->setEnabled(false);
pbnLast->setEnabled(false);
pbnDelete->setEnabled(false);
QString myThemePath = QgsApplication::themePath();
pbnNew->setIcon(QPixmap(myThemePath+"mIconNew.png"));
//next line needed for new/abort logic
pbnNew->setText(tr("Abort"));
//clear the controls
leName->setText("");
leParameters->setText("");
//cboProjectionFamily->setCurrentItem(0);
//cboEllipsoid->setCurrentItem(0);
lblRecordNo->setText("* of " + QString::number(mRecordCountLong));
//remember the rec we are on in case the user aborts
mLastRecordLong=mCurrentRecordLong;
mCurrentRecordId="";
}
}
void QgsCustomProjectionDialog::on_pbnSave_clicked()
{
#ifdef QGISDEBUG
std::cout << "QgsCustomProjectionDialog::on_pbnSave_clicked()" << std::endl;
#endif
QString myName = leName->text();
QString myParameters = leParameters->text();
if (myName.isEmpty())
{
QMessageBox::information( this, tr("QGIS Custom Projection"),
tr("This proj4 projection definition is not valid. Please give the projection a name before pressing save.") );
return;
}
if (myParameters.isEmpty())
{
QMessageBox::information( this, tr("QGIS Custom Projection"),
tr("This proj4 projection definition is not valid. Please add the parameters before pressing save.") );
return;
}
//
// Now make sure parameters have proj and ellipse
//
QString myProjectionAcronym = getProjFromParameters();
QString myEllipsoidAcronym = getEllipseFromParameters();
if ( myProjectionAcronym.isNull() )
{
QMessageBox::information( this, tr("QGIS Custom Projection"),
tr("This proj4 projection definition is not valid. Please add a proj= clause before pressing save.") );
return;
}
/** I am commenting this check out for now because of ticket #1146
* In 1.0.0 we should consider doing more sophisticated checks or just
* removing this commented block entirely. It is possible to set the
* parameters for the earths figure in ways other than using ellps (which
* is a convenience function in proj). For example the radius and flattenning
* can be specified and various other parameter permutations. See the proj
* manual section entitled 'Specifying the Earths Figure' for more details.
* Tim Sutton */
//if ( myEllipsoidAcronym.isNull() )
//{
// QMessageBox::information( this, tr("QGIS Custom Projection"),
// tr("This proj4 ellipsoid definition is not valid. Please add a ellips= clause before pressing save.") );
// return;
//}
//
// We must check the prj def is valid!
// NOTE : the test below may be bogus as the processes abpve emsired there
// is always at least a projection and ellpsoid - which proj will parse as acceptible
//
projPJ myProj = pj_init_plus( leParameters->text().toLocal8Bit().data() );
if ( myProj == NULL )
{
QMessageBox::information( this, tr("QGIS Custom Projection"),
tr("This proj4 projection definition is not valid. Please correct before pressing save.") );
pj_free(myProj);
return;
}
pj_free(myProj);
/** TODO Check the projection is not a duplicate ! */
//CREATE TABLE tbl_srs (
//srs_id integer primary key,
//description varchar(255) NOT NULL,
//projection_acronym varchar(20) NOT NULL default '',
//ellipsoid_acronym varchar(20) NOT NULL default '',
//parameters varchar(80) NOT NULL default ''
//);
QString mySql;
//insert a record if mode is enabled
if (pbnNew->text()==tr("Abort"))
{
//if this is the first record we need to ensure that its srs_id is 10000. For
//any rec after that sqlite3 will take care of the autonumering
//this was done to support sqlite 3.0 as it does not yet support
//the autoinc related system tables.
if (getRecordCount() == 0)
{
mySql=QString("insert into tbl_srs (srs_id,description,projection_acronym,ellipsoid_acronym,parameters,is_geo) ")
+ " values ("+ QString::number(USER_PROJECTION_START_ID) + ",'"
+ stringSQLSafe(myName) + "','" + myProjectionAcronym
+ "','" + myEllipsoidAcronym + "','" + stringSQLSafe(myParameters)
+ "',0)"; // <-- is_geo shamelessly hard coded for now
}
else
{
mySql="insert into tbl_srs (description,projection_acronym,ellipsoid_acronym,parameters,is_geo) values ('"
+ stringSQLSafe(myName) + "','" + myProjectionAcronym
+ "','" + myEllipsoidAcronym + "','" + stringSQLSafe(myParameters )
+ "',0)"; // <-- is_geo shamelessly hard coded for now
}
}
else //user is updating an existing record
{
mySql="update tbl_srs set description='" + stringSQLSafe(myName)
+ "',projection_acronym='" + myProjectionAcronym
+ "',ellipsoid_acronym='" + myEllipsoidAcronym
+ "',parameters='" + stringSQLSafe(myParameters) + "' "
+ ",is_geo=0" // <--shamelessly hard coded for now
+ " where srs_id='" + mCurrentRecordId + "'"
;
}
sqlite3 *myDatabase;
const char *myTail;
sqlite3_stmt *myPreparedStatement;
int myResult;
//check the db is available
myResult = sqlite3_open(QgsApplication::qgisUserDbFilePath().toUtf8().data(), &myDatabase);
if(myResult!=SQLITE_OK)
{
std::cout << "Can't open database: " << sqlite3_errmsg(myDatabase) <<
" /n please notify QGIS developers of this error \n " <<
QgsApplication::qgisUserDbFilePath().toLocal8Bit().data() << " (file name) "
<< std::endl;
// XXX This will likely never happen since on open, sqlite creates the
// database if it does not exist.
assert(myResult == 0);
}
#ifdef QGISDEBUG
std::cout << "Update or insert sql \n" << mySql.toLocal8Bit().data() << std::endl;
#endif
myResult = sqlite3_prepare(myDatabase, mySql.toUtf8(), mySql.length(), &myPreparedStatement, &myTail);
sqlite3_step(myPreparedStatement);
// XXX Need to free memory from the error msg if one is set
if(myResult != SQLITE_OK)
{
#ifdef QGISDEBUG
std::cout << "Update or insert failed in custom projection dialog " << std::endl;
#endif
}
//reinstate button if we were doing an insert
else if (pbnNew->text()==tr("Abort"))
{
pbnNew->setText(tr("New"));
//get to the newly inserted record
++mRecordCountLong;
mCurrentRecordLong=mRecordCountLong-1;
on_pbnLast_clicked();
}
sqlite3_finalize(myPreparedStatement);
sqlite3_close(myDatabase);
}
void QgsCustomProjectionDialog::on_pbnCalculate_clicked()
{
#ifdef QGISDEBUG
std::cout << "QgsCustomProjectionDialog::on_pbnCalculate_clicked()" << std::endl;
#endif
//
// We must check the prj def is valid!
//
projPJ myProj = pj_init_plus( leTestParameters->text().toLocal8Bit().data() );
std::cout << "My proj: " << leTestParameters->text().toLocal8Bit().data() << std::endl;
if ( myProj == NULL )
{
QMessageBox::information( this, tr("QGIS Custom Projection"),
tr("This proj4 projection definition is not valid.") );
projectedX->setText("");
projectedY->setText("");
pj_free(myProj);
return;
}
// Get the WGS84 coordinates
bool okN, okE;
double northing = northWGS84->text().toDouble(&okN) * DEG_TO_RAD;
double easthing = eastWGS84->text().toDouble(&okE) * DEG_TO_RAD;
if ( !okN || !okE )
{
QMessageBox::information( this, tr("QGIS Custom Projection"),
tr("Northing and Easthing must be in decimal form.") );
projectedX->setText("");
projectedY->setText("");
pj_free(myProj);
return;
}
projPJ wgs84Proj = pj_init_plus( GEOPROJ4.toLocal8Bit().data() ); //defined in qgis.h
if ( wgs84Proj == NULL )
{
QMessageBox::information( this, tr("QGIS Custom Projection"),
tr("Internal Error (source projection invalid?)") );
projectedX->setText("");
projectedY->setText("");
pj_free(myProj);
return;
}
double z = 0.0;
int projResult = pj_transform(wgs84Proj, myProj, 1, 0, &easthing, &northing, &z);
if ( projResult != 0 )
{
projectedX->setText("Error");
projectedY->setText("Error");
std::cout << pj_strerrno(projResult) << std::endl;
}
else
{
QString tmp;
tmp = tmp.setNum(northing, 'f', 4);
projectedX->setText(tmp);
tmp = tmp.setNum(easthing, 'f', 4);
projectedY->setText(tmp);
}
//
pj_free(myProj);
pj_free(wgs84Proj);
}
/* This is deprecated - to be deleted
void QgsCustomProjectionDialog::cboProjectionFamily_highlighted( const QString & theText)
{
#ifdef QGISDEBUG
std::cout << "Projection selected from combo" << std::endl;
#endif
//search the sqlite user projections db for the projection entry
//and display its parameters
sqlite3 *myDatabase;
const char *myTail;
sqlite3_stmt *myPreparedStatement;
int myResult;
//check the db is available
myResult = sqlite3_open(QgsApplication::qgisUserDbFilePath().toUtf8().data(), &myDatabase);
if(myResult!=SQLITE_OK)
{
std::cout << "Can't open database: " << sqlite3_errmsg(myDatabase) << std::endl;
// XXX This will likely never happen since on open, sqlite creates the
// database if it does not exist.
assert(myResult == 0);