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fixed ticket #345 
git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@6188 c8812cc2-4d05-0410-92ff-de0c093fc19c
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rblazek committed Dec 5, 2006
1 parent 244681b commit 65117c3
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Showing 2 changed files with 192 additions and 147 deletions.
331 changes: 184 additions & 147 deletions src/composer/qgscomposer.cpp
View file
Expand Up @@ -333,15 +333,27 @@ void QgsComposer::on_mActionPrint_activated(void)
try {
std::cout << "Print to file" << std::endl;

#ifdef Q_WS_X11
// NOTE: On UNIX setPageSize after setup() works, but setOrientation does not
// -> the BoundingBox must follow the orientation

QPrinter::PageSize psize = mPrinter->pageSize();
// B0 ( 1000x1414mm = 2835x4008pt ) is the biggest defined in Qt, a map can be bigger
// but probably not bigger than 9999x9999pt = 3527x3527mm
mPrinter->setPageSize ( QPrinter::B0 );
#endif
QPrinter::PageSize psize;

// WARNING mPrinter->outputFormat() returns always 0 in Qt 4.2.2
// => we have to check extension
bool isPs = false;
if ( mPrinter->outputFileName().right(3).toLower() == ".ps"
|| mPrinter->outputFileName().right(4).toLower() == ".eps" )
{
isPs = true;
}
//if ( mPrinter->outputFormat() == QPrinter::PostScriptFormat )
if ( isPs )
{
// NOTE: setPageSize after setup() works, but setOrientation does not
// -> the BoundingBox must follow the orientation

psize = mPrinter->pageSize();
// B0 ( 1000x1414mm = 2835x4008pt ) is the biggest defined in Qt, a map can be bigger
// but probably not bigger than 9999x9999pt = 3527x3527mm
mPrinter->setPageSize ( QPrinter::B0 );
}

QPainter p(mPrinter);
p.scale ( scale, scale);
Expand All @@ -353,145 +365,156 @@ void QgsComposer::on_mActionPrint_activated(void)

p.end();

#ifdef Q_WS_X11
// reset the page
mPrinter->setPageSize ( psize );

QFile f(mPrinter->outputFileName());

// Overwrite the bounding box
if (!f.open( QIODevice::ReadWrite )) {
throw QgsIOException(tr("Couldn't open " + f.name() + tr(" for read/write")));
}
Q_LONG offset = 0;
Q_LONG size;
bool found = false;
QString s;
char buf[101];
while ( !f.atEnd() ) {
size = f.readLine ( buf, 100 );
s = QString(buf);
if ( s.find ("%%BoundingBox:") == 0 ) {
found = true;
break;
}
offset += size;
}

if ( found ) {
int w,h;

w = (int) ( 72 * mComposition->paperWidth() / 25.4 );
h = (int) ( 72 * mComposition->paperHeight() / 25.4 );
if ( mPrinter->orientation() == QPrinter::Landscape ) {
int tmp = w; w = h; h = tmp;
}
s.sprintf( "%%%%BoundingBox: 0 0 %d %d", w, h );

if ( s.length() > size ) {
QMessageBox::warning(this, tr("Error in Print"), tr("Cannot format BoundingBox"));
} else {
if ( ! f.at(offset) ) {
QMessageBox::warning(this, tr("Error in Print"), tr("Cannot seek"));
} else {
/* Write spaces (for case the size > s.length() ) */
QString es;
es.fill(' ', size-1 );
f.flush();
if ( f.writeBlock ( es.toLocal8Bit().data(), size-1 ) < size-1 ) {
QMessageBox::warning(this, tr("Error in Print"), tr("Cannot overwrite BoundingBox"));
}
f.flush();
f.at(offset);
f.flush();
if ( f.writeBlock ( s.toLocal8Bit().data(), s.length() ) < s.length()-1 ) {
QMessageBox::warning(this, tr("Error in Print"), tr("Cannot overwrite BoundingBox"));
}
f.flush();
}
}
} else {
QMessageBox::warning(this, tr("Error in Print"), tr("Cannot find BoundingBox"));
}
f.close();

// Overwrite translate
if ( mPrinter->orientation() == QPrinter::Portrait ) {
std::cout << "Orientation portraint -> overwrite translate" << std::endl;
if (!f.open( QIODevice::ReadWrite )) {
throw QgsIOException(tr("Couldn't open ") + f.name() + tr(" for read/write"));
}
offset = 0;
found = false;

//Example Qt3:
//0 4008 translate 1 -1 scale/defM ...
//QRegExp rx ( "^0 [^ ]+ translate ([^ ]+ [^ ]+) scale/defM matrix CM d \\} d" );
//Example Qt4:
//0 0 translate 0.239999 -0.239999 scale } def
QRegExp rx ( "^0 [^ ]+ translate ([^ ]+ [^ ]+) scale \\} def" );

while ( !f.atEnd() ) {
size = f.readLine ( buf, 100 );
s = QString(buf);
if ( rx.search( s ) != -1 ) {
found = true;
break;
}
offset += size;
}

if ( found ) {
int trans;

trans = (int) ( 72 * mComposition->paperHeight() / 25.4 );
std::cout << "trans = " << trans << std::endl;
//Qt3:
//s.sprintf( "0 %d translate %s scale/defM matrix CM d } d", trans, (const char *)rx.cap(1).toLocal8Bit().data() );
//Qt4:
s.sprintf( "0 %d translate %s scale } def\n", trans, (const char *)rx.cap(1).toLocal8Bit().data() );


std::cout << "s.length() = " << s.length() << " size = " << size << std::endl;
if ( s.length() > size ) {
//QMessageBox::warning(this, tr("Error in Print"), tr("Cannot format translate"));
// Move the content up
int shift = s.length() - size;
int last = f.size() + shift -1;
for ( int i = last; i > offset + size; i-- )
{
f.at(i-shift);
QByteArray ba = f.read(1);
f.at(i);
f.write(ba);
}
}

// Overwrite the row
if ( ! f.at(offset) ) {
QMessageBox::warning(this, tr("Error in Print"), tr("Cannot seek"));
} else {
/* Write spaces (for case the size > s.length() ) */
QString es;
es.fill(' ', size-1 );
f.flush();
if ( f.writeBlock ( es.toLocal8Bit().data(), size-1 ) < size-1 ) {
QMessageBox::warning(this, tr("Error in Print"), tr("Cannot overwrite translate"));
}
f.flush();
f.at(offset);
f.flush();
if ( f.writeBlock ( s.toLocal8Bit().data(), s.length() ) < s.length()-1 ) {
QMessageBox::warning(this, tr("Error in Print"), tr("Cannot overwrite translate"));
}
f.flush();
}
} else {
QMessageBox::warning(this, tr("Error in Print"), tr("Cannot find translate"));
}
f.close();
std::cout << "mPrinter->outputFormat() = " << mPrinter->outputFormat() << std::endl;


//if ( mPrinter->outputFormat() == QPrinter::PostScriptFormat )
if ( isPs )
{
// reset the page
mPrinter->setPageSize ( psize );

QFile f(mPrinter->outputFileName());

// Overwrite the bounding box
std::cout << "Overwrite the bounding box" << std::endl;
if (!f.open( QIODevice::ReadWrite )) {
throw QgsIOException(tr("Couldn't open " + f.name() + tr(" for read/write")));
}
Q_LONG offset = 0;
Q_LONG size;
bool found = false;
QString s;
char buf[101];
while ( !f.atEnd() ) {
size = f.readLine ( buf, 100 );
s = QString(buf);
if ( s.find ("%%BoundingBox:") == 0 ) {
found = true;
break;
}
offset += size;
}

if ( found ) {
int w,h;

w = (int) ( 72 * mComposition->paperWidth() / 25.4 );
h = (int) ( 72 * mComposition->paperHeight() / 25.4 );
if ( mPrinter->orientation() == QPrinter::Landscape ) {
int tmp = w; w = h; h = tmp;
}
s.sprintf( "%%%%BoundingBox: 0 0 %d %d", w, h );

if ( s.length() > size )
{
int shift = s.length() - size;
shiftFileContent ( &f, offset + size + 1, shift );
} else {
if ( ! f.at(offset) ) {
QMessageBox::warning(this, tr("Error in Print"), tr("Cannot seek"));
} else {
/* Write spaces (for case the size > s.length() ) */
QString es;
es.fill(' ', size-1 );
f.flush();
if ( f.writeBlock ( es.toLocal8Bit().data(), size-1 ) < size-1 ) {
QMessageBox::warning(this, tr("Error in Print"), tr("Cannot overwrite BoundingBox"));
}
f.flush();
f.at(offset);
f.flush();
if ( f.writeBlock ( s.toLocal8Bit().data(), s.length() ) < s.length()-1 ) {
QMessageBox::warning(this, tr("Error in Print"), tr("Cannot overwrite BoundingBox"));
}
f.flush();
}
}
} else {
QMessageBox::warning(this, tr("Error in Print"), tr("Cannot find BoundingBox"));
}
f.close();

// Overwrite translate
if ( mPrinter->orientation() == QPrinter::Portrait ) {
std::cout << "Orientation portraint -> overwrite translate" << std::endl;
if (!f.open( QIODevice::ReadWrite )) {
throw QgsIOException(tr("Couldn't open ") + f.name() + tr(" for read/write"));
}
offset = 0;
found = false;

//Example Qt3:
//0 4008 translate 1 -1 scale/defM ...
//QRegExp rx ( "^0 [^ ]+ translate ([^ ]+ [^ ]+) scale/defM matrix CM d \\} d" );
//Example Qt4:
//0 0 translate 0.239999 -0.239999 scale } def
QRegExp rx ( "^0 [^ ]+ translate ([^ ]+ [^ ]+) scale \\} def" );

while ( !f.atEnd() ) {
size = f.readLine ( buf, 100 );
s = QString(buf);
if ( rx.search( s ) != -1 ) {
found = true;
break;
}
offset += size;
}

if ( found ) {
int trans;

trans = (int) ( 72 * mComposition->paperHeight() / 25.4 );
std::cout << "trans = " << trans << std::endl;
//Qt3:
//s.sprintf( "0 %d translate %s scale/defM matrix CM d } d", trans, (const char *)rx.cap(1).toLocal8Bit().data() );
//Qt4:
s.sprintf( "0 %d translate %s scale } def\n", trans, (const char *)rx.cap(1).toLocal8Bit().data() );


std::cout << "s.length() = " << s.length() << " size = " << size << std::endl;
if ( s.length() > size ) {
//QMessageBox::warning(this, tr("Error in Print"), tr("Cannot format translate"));
// Move the content up
int shift = s.length() - size;
/*
int last = f.size() + shift -1;
for ( int i = last; i > offset + size; i-- )
{
f.at(i-shift);
QByteArray ba = f.read(1);
f.at(i);
f.write(ba);
}
*/
shiftFileContent ( &f, offset + size + 1, shift );
}

// Overwrite the row
if ( ! f.at(offset) ) {
QMessageBox::warning(this, tr("Error in Print"), tr("Cannot seek"));
} else {
/* Write spaces (for case the size > s.length() ) */
QString es;
es.fill(' ', size-1 );
f.flush();
if ( f.writeBlock ( es.toLocal8Bit().data(), size-1 ) < size-1 ) {
QMessageBox::warning(this, tr("Error in Print"), tr("Cannot overwrite translate"));
}
f.flush();
f.at(offset);
f.flush();
if ( f.writeBlock ( s.toLocal8Bit().data(), s.length() ) < s.length()-1 ) {
QMessageBox::warning(this, tr("Error in Print"), tr("Cannot overwrite translate"));
}
f.flush();
}
} else {
QMessageBox::warning(this, tr("Error in Print"), tr("Cannot find translate"));
}
f.close();
}
}
#endif
} catch (QgsIOException e) {
QMessageBox::warning(this, tr("File IO Error"), e.what());
}
Expand Down Expand Up @@ -534,6 +557,20 @@ void QgsComposer::on_mActionPrint_activated(void)
}
}

bool shiftFileContent ( QFile *file, Q_LONG start, int shift )
{
int last = file->size() + shift -1;
for ( int i = last; i >= start + shift; i-- )
{
if ( !file->at(i-shift) ) return false;
QByteArray ba = file->read(1);
if ( ba.isEmpty() ) return false;
if ( !file->at(i) ) return false;
if ( file->write(ba) != 1 ) return false;
}
return true;
}

void QgsComposer::on_mActionExportAsImage_activated(void)
{
// Image size
Expand Down
8 changes: 8 additions & 0 deletions src/composer/qgscomposer.h
View file
Expand Up @@ -30,6 +30,7 @@ class QDomNode;
class QDomDocument;
class QMoveEvent;
class QResizeEvent;
class QFile;

/* The constructor creates empty composer, without compositions and mFirstTime set to true.
* - if signal projectRead() is recieved all old compositions are deleted and
Expand Down Expand Up @@ -158,6 +159,13 @@ public slots:
//! remove widget childrens
void removeWidgetChildren ( QWidget *w );

/** \brief move up the content of the file
\param file file
\param from starting position
\param shift shift in bytes
*/
bool shiftFileContent ( QFile *file, Q_LONG start, int shift );

//! Set buttons up
void setToolActionsOff (void);

Expand Down

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