copy pasted a lot of code required for the widget from symbol selecto…

…r; status - Compiles
qgis · Jul 9, 2012 · 1d770bf · 1d770bf
1 parent 1e80592
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diff --git a/src/gui/CMakeLists.txt b/src/gui/CMakeLists.txt
@@ -30,6 +30,7 @@ symbology-ng/qgsstylev2exportimportdialog.cpp
 symbology-ng/qgsellipsesymbollayerv2widget.cpp
 symbology-ng/qgspointdisplacementrendererwidget.cpp
 symbology-ng/qgsvectorfieldsymbollayerwidget.cpp
+symbology-ng/qgssymbolslistwidget.cpp
 
 attributetable/qgsattributetablemodel.cpp
 attributetable/qgsattributetablememorymodel.cpp
@@ -124,6 +125,7 @@ symbology-ng/qgsstylev2exportimportdialog.h
 symbology-ng/qgsellipsesymbollayerv2widget.h
 symbology-ng/qgspointdisplacementrendererwidget.h
 symbology-ng/qgsvectorfieldsymbollayerwidget.h
+symbology-ng/qgssymbolslistwidget.h
 
 attributetable/qgsattributetableview.h
 attributetable/qgsattributetablemodel.h

diff --git a/src/gui/symbology-ng/qgssymbolslistwidget.cpp b/src/gui/symbology-ng/qgssymbolslistwidget.cpp
@@ -0,0 +1,277 @@
+/***************************************************************************
+    qgssymbolslist.cpp
+    ---------------------
+    begin                : June 2012
+    copyright            : (C) 2012 by Arunmozhi
+    email                : aruntheguy at gmail.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 "qgssymbolslistwidget.h"
+
+#include "qgsstylev2managerdialog.h"
+
+#include "qgssymbolv2.h"
+#include "qgsstylev2.h"
+#include "qgssymbollayerv2utils.h"
+
+#include "qgsapplication.h"
+
+#include <QString>
+#include <QStringList>
+#include <QPainter>
+#include <QIcon>
+#include <QStandardItemModel>
+#include <QColorDialog>
+#include <QInputDialog>
+#include <QMessageBox>
+#include <QMenu>
+
+
+QgsSymbolsListWidget::QgsSymbolsListWidget( QgsSymbolV2* symbol, QgsStyleV2* style, QWidget* parent ) : QWidget( parent )
+{
+  mSymbol = symbol;
+  mStyle = style;
+
+  setupUi( this );
+
+  btnAdvanced->hide(); // advanced button is hidden by default
+
+  QStandardItemModel* model = new QStandardItemModel( viewSymbols );
+  viewSymbols->setModel( model );
+  //connect( viewSymbols, SIGNAL( clicked( const QModelIndex & ) ), this, SLOT( setSymbolFromStyle( const QModelIndex & ) ) );
+
+  connect( btnStyleManager, SIGNAL( clicked() ), SLOT( openStyleManager() ) );
+  lblSymbolName->setText( "" );
+  populateSymbolView();
+
+  if ( mSymbol )
+  {
+    // output unit
+    mSymbolUnitComboBox->blockSignals( true );
+    mSymbolUnitComboBox->setCurrentIndex( mSymbol->outputUnit() );
+    mSymbolUnitComboBox->blockSignals( false );
+
+    mTransparencySlider->blockSignals( true );
+    double transparency = 1 - symbol->alpha();
+    mTransparencySlider->setValue( transparency * 255 );
+    displayTransparency( symbol->alpha() );
+    mTransparencySlider->blockSignals( false );
+  }
+
+  // select correct page in stacked widget
+  // there's a correspondence between symbol type number and page numbering => exploit it!
+  stackedWidget->setCurrentIndex( symbol->type() );
+  connect( btnColor, SIGNAL( clicked() ), this, SLOT( setSymbolColor() ) );
+  connect( spinAngle, SIGNAL( valueChanged( double ) ), this, SLOT( setMarkerAngle( double ) ) );
+  connect( spinSize, SIGNAL( valueChanged( double ) ), this, SLOT( setMarkerSize( double ) ) );
+  connect( spinWidth, SIGNAL( valueChanged( double ) ), this, SLOT( setLineWidth( double ) ) );
+
+  connect( btnAddToStyle, SIGNAL( clicked() ), this, SLOT( addSymbolToStyle() ) );
+  btnAddToStyle->setIcon( QIcon( QgsApplication::defaultThemePath() + "symbologyAdd.png" ) );
+
+}
+
+
+void QgsSymbolsListWidget::populateSymbolView()
+{
+  QSize previewSize = viewSymbols->iconSize();
+  QPixmap p( previewSize );
+  QPainter painter;
+
+  QStandardItemModel* model = qobject_cast<QStandardItemModel*>( viewSymbols->model() );
+  if ( !model )
+  {
+    return;
+  }
+  model->clear();
+
+  QStringList names = mStyle->symbolNames();
+  for ( int i = 0; i < names.count(); i++ )
+  {
+    QgsSymbolV2* s = mStyle->symbol( names[i] );
+    if ( s->type() != mSymbol->type() )
+    {
+      delete s;
+      continue;
+    }
+    QStandardItem* item = new QStandardItem( names[i] );
+    item->setData( names[i], Qt::UserRole ); //so we can show a label when it is clicked
+    item->setText( "" ); //set the text to nothing and show in label when clicked rather
+    item->setFlags( Qt::ItemIsEnabled | Qt::ItemIsSelectable );
+    // create preview icon
+    QIcon icon = QgsSymbolLayerV2Utils::symbolPreviewIcon( s, previewSize );
+    item->setIcon( icon );
+    // add to model
+    model->appendRow( item );
+    delete s;
+  }
+}
+
+void QgsSymbolsListWidget::openStyleManager()
+{
+  QgsStyleV2ManagerDialog dlg( mStyle, this );
+  dlg.exec();
+
+  populateSymbolView();
+}
+
+void QgsSymbolsListWidget::setSymbolColor()
+{
+#if defined(Q_WS_MAC) && QT_VERSION >= 0x040500 && defined(QT_MAC_USE_COCOA)
+  // Native Mac dialog works only for Qt Carbon
+  // Qt bug: http://bugreports.qt.nokia.com/browse/QTBUG-14889
+  // FIXME need to also check max QT_VERSION when Qt bug fixed
+  QColor color = QColorDialog::getColor( mSymbol->color(), this, "", QColorDialog::DontUseNativeDialog );
+#else
+  QColor color = QColorDialog::getColor( mSymbol->color(), this );
+#endif
+  if ( !color.isValid() )
+    return;
+
+  mSymbol->setColor( color );
+  updateSymbolColor();
+  emit changed();
+}
+
+void QgsSymbolsListWidget::setMarkerAngle( double angle )
+{
+  QgsMarkerSymbolV2* markerSymbol = static_cast<QgsMarkerSymbolV2*>( mSymbol );
+  if ( markerSymbol->angle() == angle )
+    return;
+  markerSymbol->setAngle( angle );
+  emit changed();
+}
+
+void QgsSymbolsListWidget::setMarkerSize( double size )
+{
+  QgsMarkerSymbolV2* markerSymbol = static_cast<QgsMarkerSymbolV2*>( mSymbol );
+  if ( markerSymbol->size() == size )
+    return;
+  markerSymbol->setSize( size );
+  emit changed();
+}
+
+void QgsSymbolsListWidget::setLineWidth( double width )
+{
+  QgsLineSymbolV2* lineSymbol = static_cast<QgsLineSymbolV2*>( mSymbol );
+  if ( lineSymbol->width() == width )
+    return;
+  lineSymbol->setWidth( width );
+  emit changed();
+}
+
+void QgsSymbolsListWidget::addSymbolToStyle()
+{
+  bool ok;
+  QString name = QInputDialog::getText( this, tr( "Symbol name" ),
+                                        tr( "Please enter name for the symbol:" ) , QLineEdit::Normal, tr( "New symbol" ), &ok );
+  if ( !ok || name.isEmpty() )
+    return;
+
+  // check if there is no symbol with same name
+  if ( mStyle->symbolNames().contains( name ) )
+  {
+    int res = QMessageBox::warning( this, tr( "Save symbol" ),
+                                    tr( "Symbol with name '%1' already exists. Overwrite?" )
+                                    .arg( name ),
+                                    QMessageBox::Yes | QMessageBox::No );
+    if ( res != QMessageBox::Yes )
+    {
+      return;
+    }
+  }
+
+  // add new symbol to style and re-populate the list
+  mStyle->addSymbol( name, mSymbol->clone() );
+
+  // make sure the symbol is stored
+  mStyle->save();
+
+  populateSymbolView();
+}
+
+void QgsSymbolsListWidget::on_mSymbolUnitComboBox_currentIndexChanged( const QString & text )
+{
+  Q_UNUSED( text );
+  if ( mSymbol )
+  {
+    mSymbol->setOutputUnit(( QgsSymbolV2::OutputUnit ) mSymbolUnitComboBox->currentIndex() );
+
+    emit changed();
+  }
+}
+
+void QgsSymbolsListWidget::on_mTransparencySlider_valueChanged( int value )
+{
+  if ( mSymbol )
+  {
+    double alpha = 1 - ( value / 255.0 );
+    mSymbol->setAlpha( alpha );
+    displayTransparency( alpha );
+    emit changed();
+  }
+}
+
+void QgsSymbolsListWidget::displayTransparency( double alpha )
+{
+  double transparencyPercent = ( 1 - alpha ) * 100;
+  mTransparencyLabel->setText( tr( "Transparency %1%" ).arg(( int ) transparencyPercent ) );
+}
+
+void QgsSymbolsListWidget::updateSymbolColor()
+{
+  btnColor->setColor( mSymbol->color() );
+}
+
+void QgsSymbolsListWidget::updateSymbolInfo()
+{
+  updateSymbolColor();
+
+  if ( mSymbol->type() == QgsSymbolV2::Marker )
+  {
+    QgsMarkerSymbolV2* markerSymbol = static_cast<QgsMarkerSymbolV2*>( mSymbol );
+    spinSize->setValue( markerSymbol->size() );
+    spinAngle->setValue( markerSymbol->angle() );
+  }
+  else if ( mSymbol->type() == QgsSymbolV2::Line )
+  {
+    QgsLineSymbolV2* lineSymbol = static_cast<QgsLineSymbolV2*>( mSymbol );
+    spinWidth->setValue( lineSymbol->width() );
+  }
+}
+
+void QgsSymbolsListWidget::setSymbolFromStyle( const QModelIndex & index )
+{
+  QString symbolName = index.data( Qt::UserRole ).toString();
+  lblSymbolName->setText( symbolName );
+  // get new instance of symbol from style
+  QgsSymbolV2* s = mStyle->symbol( symbolName );
+  // remove all symbol layers from original symbol
+  while ( mSymbol->symbolLayerCount() )
+    mSymbol->deleteSymbolLayer( 0 );
+  // move all symbol layers to our symbol
+  while ( s->symbolLayerCount() )
+  {
+    QgsSymbolLayerV2* sl = s->takeSymbolLayer( 0 );
+    mSymbol->appendSymbolLayer( sl );
+  }
+  // delete the temporary symbol
+  delete s;
+
+  updateSymbolInfo();
+  emit changed();
+}
+
+
+
+
+
+
diff --git a/src/gui/symbology-ng/qgssymbolslistwidget.h b/src/gui/symbology-ng/qgssymbolslistwidget.h
@@ -0,0 +1,75 @@
+/***************************************************************************
+    qgssymbolslistwidget.h
+    ---------------------
+    begin                : June 2012
+    copyright            : (C) 2012 by Arunmozhi
+    email                : aruntheguy at gmail.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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#ifndef QGSSYMBOLSLISTWIDGET_H
+#define QGSSYMBOLSLISTWIDGET_H
+
+#include "ui_widget_symbolslist.h"
+
+#include <QWidget>
+
+class QgsSymbolV2;
+class QgsStyleV2;
+class QgsVectorLayer;
+
+class QMenu;
+
+class GUI_EXPORT QgsSymbolsListWidget : public QWidget, private Ui::WidgetSymbolsList
+{
+    Q_OBJECT
+
+  public:
+    QgsSymbolsListWidget( QgsSymbolV2* symbol, QgsStyleV2* style, QWidget* parent = NULL );
+
+    // static QgsSymbolLayerV2Widget* create( const QgsVectorLayer* vl ) { return new QgsVectorFieldSymbolLayerWidget( vl ); }
+
+    //! return menu for "advanced" button - create it if doesn't exist and show the advanced button
+    QMenu* advancedMenu();
+
+  public slots:
+    void setSymbolFromStyle( const QModelIndex & index );
+    void setSymbolColor();
+    void setMarkerAngle( double angle );
+    void setMarkerSize( double size );
+    void setLineWidth( double width );
+    void addSymbolToStyle();
+    void on_mSymbolUnitComboBox_currentIndexChanged( const QString & text );
+    void on_mTransparencySlider_valueChanged( int value );
+
+    void openStyleManager();
+
+  signals:
+    void changed();
+
+  protected:
+    QgsSymbolV2* mSymbol;
+    QgsStyleV2* mStyle;
+    QMenu* mAdvancedMenu;
+    const QgsVectorLayer* mVectorLayer;
+
+    void populateSymbolView();
+    void updateSymbolColor();
+    void updateSymbolInfo();
+
+  private:
+    /**Displays alpha value as transparency in mTransparencyLabel*/
+    void displayTransparency( double alpha );
+
+
+};
+
+#endif //QGSSYMBOLSLISTWIDGET_H
+
+