void
ShaderInstance::compute_run_lazily (const ShaderGroup &group)
{
if (shadingsys().m_lazylayers) {
// lazylayers option turned on: unconditionally run shaders with no
// outgoing connections ("root" nodes, including the last in the
// group) or shaders that alter global variables (unless
// 'lazyglobals' is turned on).
if (shadingsys().m_lazyglobals) {
if (group[group.nlayers()-1] == this)
run_lazily (false); // force run of last group
else
run_lazily ((outgoing_connections() && ! renderer_outputs())
|| empty_instance() || merged_unused());
}
else
run_lazily (outgoing_connections() && ! writes_globals()
&& ! renderer_outputs());
#if 0
// Suggested warning below... but are there use cases where people
// want these to run (because they will extract the results they
// want from output params)?
if (! outgoing_connections() && ! empty_instance() &&
! writes_globals() && ! renderer_outputs())
shadingsys().warning ("Layer \"%s\" (shader %s) will run even though it appears to have no used results",
layername(), shadername());
#endif
} else {
// lazylayers option turned off: never run lazily
run_lazily (false);
}
}
void
ShaderInstance::copy_code_from_master (ShaderGroup &group)
{
ASSERT (m_instops.empty() && m_instargs.empty());
// reserve with enough room for a few insertions
m_instops.reserve (master()->m_ops.size()+10);
m_instargs.reserve (master()->m_args.size()+10);
m_instops = master()->m_ops;
m_instargs = master()->m_args;
// Copy the symbols from the master
ASSERT (m_instsymbols.size() == 0 &&
"should not have copied m_instsymbols yet");
m_instsymbols = m_master->m_symbols;
// Copy the instance override data
// Also set the renderer_output flags where needed.
ASSERT (m_instoverrides.size() == (size_t)std::max(0,lastparam()));
ASSERT (m_instsymbols.size() >= (size_t)std::max(0,lastparam()));
if (m_instoverrides.size()) {
for (size_t i = 0, e = lastparam(); i < e; ++i) {
Symbol *si = &m_instsymbols[i];
if (m_instoverrides[i].valuesource() == Symbol::DefaultVal) {
// Fix the length of any default-value variable length array
// parameters.
if (si->typespec().is_unsized_array())
si->arraylen (si->initializers());
} else {
if (m_instoverrides[i].arraylen())
si->arraylen (m_instoverrides[i].arraylen());
si->valuesource (m_instoverrides[i].valuesource());
si->connected_down (m_instoverrides[i].connected_down());
si->lockgeom (m_instoverrides[i].lockgeom());
si->data (param_storage(i));
}
if (shadingsys().is_renderer_output (layername(), si->name(), &group)) {
si->renderer_output (true);
renderer_outputs (true);
}
}
}
evaluate_writes_globals_and_userdata_params ();
off_t symmem = vectorbytes(m_instsymbols) - vectorbytes(m_instoverrides);
SymOverrideInfoVec().swap (m_instoverrides); // free it
// adjust stats
{
spin_lock lock (shadingsys().m_stat_mutex);
shadingsys().m_stat_mem_inst_syms += symmem;
shadingsys().m_stat_mem_inst += symmem;
shadingsys().m_stat_memory += symmem;
}
}
void QgsVectorLayerSaveAsDialog::accept()
{
if ( QFile::exists( filename() ) )
{
QgsVectorFileWriter::EditionCapabilities caps =
QgsVectorFileWriter::editionCapabilities( filename() );
bool layerExists = QgsVectorFileWriter::targetLayerExists( filename(),
layername() );
if ( layerExists )
{
if ( !( caps & QgsVectorFileWriter::CanAppendToExistingLayer ) &&
( caps & QgsVectorFileWriter::CanDeleteLayer ) &&
( caps & QgsVectorFileWriter::CanAddNewLayer ) )
{
QMessageBox msgBox;
msgBox.setIcon( QMessageBox::Question );
msgBox.setWindowTitle( tr( "The layer already exists" ) );
msgBox.setText( tr( "Do you want to overwrite the whole file or overwrite the layer?" ) );
QPushButton *overwriteFileButton = msgBox.addButton( tr( "Overwrite file" ), QMessageBox::ActionRole );
QPushButton *overwriteLayerButton = msgBox.addButton( tr( "Overwrite layer" ), QMessageBox::ActionRole );
msgBox.setStandardButtons( QMessageBox::Cancel );
msgBox.setDefaultButton( QMessageBox::Cancel );
int ret = msgBox.exec();
if ( ret == QMessageBox::Cancel )
return;
if ( msgBox.clickedButton() == overwriteFileButton )
mActionOnExistingFile = QgsVectorFileWriter::CreateOrOverwriteFile;
else if ( msgBox.clickedButton() == overwriteLayerButton )
mActionOnExistingFile = QgsVectorFileWriter::CreateOrOverwriteLayer;
}
else if ( !( caps & QgsVectorFileWriter::CanAppendToExistingLayer ) )
{
if ( QMessageBox::question( this,
tr( "The file already exists" ),
tr( "Do you want to overwrite the existing file?" ) ) == QMessageBox::NoButton )
{
return;
}
mActionOnExistingFile = QgsVectorFileWriter::CreateOrOverwriteFile;
}
else if (( caps & QgsVectorFileWriter::CanDeleteLayer ) &&
( caps & QgsVectorFileWriter::CanAddNewLayer ) )
{
QMessageBox msgBox;
msgBox.setIcon( QMessageBox::Question );
msgBox.setWindowTitle( tr( "The layer already exists" ) );
msgBox.setText( tr( "Do you want to overwrite the whole file, overwrite the layer or append features to the layer?" ) );
QPushButton *overwriteFileButton = msgBox.addButton( tr( "Overwrite file" ), QMessageBox::ActionRole );
QPushButton *overwriteLayerButton = msgBox.addButton( tr( "Overwrite layer" ), QMessageBox::ActionRole );
QPushButton *appendToLayerButton = msgBox.addButton( tr( "Append to layer" ), QMessageBox::ActionRole );
msgBox.setStandardButtons( QMessageBox::Cancel );
msgBox.setDefaultButton( QMessageBox::Cancel );
int ret = msgBox.exec();
if ( ret == QMessageBox::Cancel )
return;
if ( msgBox.clickedButton() == overwriteFileButton )
mActionOnExistingFile = QgsVectorFileWriter::CreateOrOverwriteFile;
else if ( msgBox.clickedButton() == overwriteLayerButton )
mActionOnExistingFile = QgsVectorFileWriter::CreateOrOverwriteLayer;
else if ( msgBox.clickedButton() == appendToLayerButton )
mActionOnExistingFile = QgsVectorFileWriter::AppendToLayerNoNewFields;
}
else
{
QMessageBox msgBox;
msgBox.setIcon( QMessageBox::Question );
msgBox.setWindowTitle( tr( "The layer already exists" ) );
msgBox.setText( tr( "Do you want to overwrite the whole file or append features to the layer?" ) );
QPushButton *overwriteFileButton = msgBox.addButton( tr( "Overwrite file" ), QMessageBox::ActionRole );
QPushButton *appendToLayerButton = msgBox.addButton( tr( "Append to layer" ), QMessageBox::ActionRole );
msgBox.setStandardButtons( QMessageBox::Cancel );
msgBox.setDefaultButton( QMessageBox::Cancel );
int ret = msgBox.exec();
if ( ret == QMessageBox::Cancel )
return;
if ( msgBox.clickedButton() == overwriteFileButton )
mActionOnExistingFile = QgsVectorFileWriter::CreateOrOverwriteFile;
else if ( msgBox.clickedButton() == appendToLayerButton )
mActionOnExistingFile = QgsVectorFileWriter::AppendToLayerNoNewFields;
}
if ( mActionOnExistingFile == QgsVectorFileWriter::AppendToLayerNoNewFields )
{
if ( QgsVectorFileWriter::areThereNewFieldsToCreate( filename(),
layername(),
mLayer,
selectedAttributes() ) )
{
if ( QMessageBox::question( this,
tr( "The existing layer has different fields" ),
tr( "Do you want to add the missing fields to the layer?" ) ) == QMessageBox::Yes )
{
mActionOnExistingFile = QgsVectorFileWriter::AppendToLayerAddFields;
}
}
}
}
else
{
if (( caps & QgsVectorFileWriter::CanAddNewLayer ) )
{
mActionOnExistingFile = QgsVectorFileWriter::CreateOrOverwriteLayer;
}
else
{
if ( QMessageBox::question( this,
tr( "The file already exists" ),
tr( "Do you want to overwrite the existing file?" ) ) == QMessageBox::NoButton )
{
return;
}
mActionOnExistingFile = QgsVectorFileWriter::CreateOrOverwriteFile;
}
}
}
QSettings settings;
settings.setValue( "/UI/lastVectorFileFilterDir", QFileInfo( filename() ).absolutePath() );
settings.setValue( "/UI/lastVectorFormat", format() );
settings.setValue( "/UI/encoding", encoding() );
QDialog::accept();
}