void QgsComposerPictureWidget::on_mPictureExpressionButton_clicked()
{
if ( !mPicture )
{
return;
}
QgsVectorLayer* vl = 0;
QgsComposition* composition = mPicture->composition();
if ( composition )
{
QgsAtlasComposition* atlasMap = &composition->atlasComposition();
if ( atlasMap )
{
vl = atlasMap->coverageLayer();
}
}
QgsExpressionBuilderDialog exprDlg( vl, mPictureExpressionLineEdit->text(), this );
exprDlg.setWindowTitle( tr( "Expression based image path" ) );
if ( exprDlg.exec() == QDialog::Accepted )
{
QString expression = exprDlg.expressionText();
if ( !expression.isEmpty() )
{
mPictureExpressionLineEdit->setText( expression );
setPictureExpression();
}
}
}
QgsAtlasComposition* QgsComposerItemBaseWidget::atlasComposition() const
{
if ( !mComposerObject )
{
return 0;
}
QgsComposition* composition = mComposerObject->composition();
if ( !composition )
{
return 0;
}
return &composition->atlasComposition();
}
void QgsComposerMapWidget::updateMapForAtlas()
{
//update map if in atlas preview mode
QgsComposition* composition = mComposerMap->composition();
if ( !composition )
{
return;
}
if ( composition->atlasMode() == QgsComposition::AtlasOff )
{
return;
}
//update atlas based extent for map
QgsAtlasComposition* atlas = &composition->atlasComposition();
atlas->prepareMap( mComposerMap );
//redraw map
mComposerMap->cache();
mComposerMap->update();
}
void QgsComposerMapWidget::toggleAtlasScalingOptionsByLayerType()
{
if ( !mComposerMap )
{
return;
}
//get composition
QgsComposition* composition = mComposerMap->composition();
if ( !composition )
{
return;
}
QgsAtlasComposition* atlas = &composition->atlasComposition();
QgsVectorLayer* coverageLayer = atlas->coverageLayer();
if ( !coverageLayer )
{
return;
}
switch ( atlas->coverageLayer()->wkbType() )
{
case QGis::WKBPoint:
case QGis::WKBPoint25D:
case QGis::WKBMultiPoint:
case QGis::WKBMultiPoint25D:
//For point layers buffer setting makes no sense, so set "fixed scale" on and disable margin control
mAtlasFixedScaleRadio->setChecked( true );
mAtlasMarginRadio->setEnabled( false );
mAtlasPredefinedScaleRadio->setEnabled( false );
break;
default:
//Not a point layer, so enable changes to fixed scale control
mAtlasMarginRadio->setEnabled( true );
mAtlasPredefinedScaleRadio->setEnabled( true );
}
}
QgsComposerMapWidget::QgsComposerMapWidget( QgsComposerMap* composerMap ): QWidget(), mComposerMap( composerMap )
{
setupUi( this );
//add widget for general composer item properties
QgsComposerItemWidget* itemPropertiesWidget = new QgsComposerItemWidget( this, composerMap );
mainLayout->addWidget( itemPropertiesWidget );
mScaleLineEdit->setValidator( new QDoubleValidator( mScaleLineEdit ) );
mXMinLineEdit->setValidator( new QDoubleValidator( mXMinLineEdit ) );
mXMaxLineEdit->setValidator( new QDoubleValidator( mXMaxLineEdit ) );
mYMinLineEdit->setValidator( new QDoubleValidator( mYMinLineEdit ) );
mYMaxLineEdit->setValidator( new QDoubleValidator( mYMaxLineEdit ) );
blockAllSignals( true );
mPreviewModeComboBox->insertItem( 0, tr( "Cache" ) );
mPreviewModeComboBox->insertItem( 1, tr( "Render" ) );
mPreviewModeComboBox->insertItem( 2, tr( "Rectangle" ) );
mGridTypeComboBox->insertItem( 0, tr( "Solid" ) );
mGridTypeComboBox->insertItem( 1, tr( "Cross" ) );
mAnnotationFormatComboBox->insertItem( 0, tr( "Decimal" ) );
mAnnotationFormatComboBox->insertItem( 1, tr( "DegreeMinute" ) );
mAnnotationFormatComboBox->insertItem( 2, tr( "DegreeMinuteSecond" ) );
mAnnotationFontColorButton->setColorDialogTitle( tr( "Select font color" ) );
mAnnotationFontColorButton->setColorDialogOptions( QColorDialog::ShowAlphaChannel );
insertAnnotationPositionEntries( mAnnotationPositionLeftComboBox );
insertAnnotationPositionEntries( mAnnotationPositionRightComboBox );
insertAnnotationPositionEntries( mAnnotationPositionTopComboBox );
insertAnnotationPositionEntries( mAnnotationPositionBottomComboBox );
insertAnnotationDirectionEntries( mAnnotationDirectionComboBoxLeft );
insertAnnotationDirectionEntries( mAnnotationDirectionComboBoxRight );
insertAnnotationDirectionEntries( mAnnotationDirectionComboBoxTop );
insertAnnotationDirectionEntries( mAnnotationDirectionComboBoxBottom );
mFrameStyleComboBox->insertItem( 0, tr( "No frame" ) );
mFrameStyleComboBox->insertItem( 1, tr( "Zebra" ) );
mGridFramePenColorButton->setColorDialogTitle( tr( "Select grid frame color" ) );
mGridFramePenColorButton->setColorDialogOptions( QColorDialog::ShowAlphaChannel );
mGridFrameFill1ColorButton->setColorDialogTitle( tr( "Select grid frame fill color" ) );
mGridFrameFill1ColorButton->setColorDialogOptions( QColorDialog::ShowAlphaChannel );
mGridFrameFill2ColorButton->setColorDialogTitle( tr( "Select grid frame fill color" ) );
mGridFrameFill2ColorButton->setColorDialogOptions( QColorDialog::ShowAlphaChannel );
//set initial state of frame style controls
toggleFrameControls( false );
connect( mGridCheckBox, SIGNAL( toggled( bool ) ),
mDrawAnnotationCheckableGroupBox, SLOT( setEnabled( bool ) ) );
connect( mAtlasCheckBox, SIGNAL( toggled( bool ) ), this, SLOT( atlasToggled( bool ) ) );
if ( composerMap )
{
connect( composerMap, SIGNAL( itemChanged() ), this, SLOT( setGuiElementValues() ) );
//get composition
QgsComposition* composition = mComposerMap->composition();
if ( composition )
{
QgsAtlasComposition* atlas = &composition->atlasComposition();
connect( atlas, SIGNAL( coverageLayerChanged( QgsVectorLayer* ) ),
this, SLOT( atlasLayerChanged( QgsVectorLayer* ) ) );
connect( atlas, SIGNAL( toggled( bool ) ), this, SLOT( compositionAtlasToggled( bool ) ) );
}
}
updateOverviewSymbolMarker();
updateLineSymbolMarker();
updateGuiElements();
blockAllSignals( false );
}