images/images.qrc

@@ -210,6 +210,8 @@
     <file>themes/default/mIconWarn.png</file>
     <file>themes/default/mIconZoom.png</file>
     <file>themes/default/mIconZip.png</file>
+    <file>themes/default/mIconCollapse.png</file>
+    <file>themes/default/mIconExpand.png</file>
     <file>themes/default/mMapserverExport.png</file>
     <file>themes/default/plugin.png</file>
     <file>themes/default/propertyicons/action.png</file>

src/app/qgsoptions.cpp

@@ -27,6 +27,7 @@
 #include "qgsproject.h"
 
 #include "qgsrasterformatsaveoptionswidget.h"
+#include "qgsrasterpyramidsoptionswidget.h"
 #include "qgsdialog.h"
 
 #include <QInputDialog>
@@ -1118,15 +1119,26 @@ void QgsOptions::editGdalDriver( const QString& driverName )
   QLabel *label = new QLabel( title, &dlg );
   label->setAlignment( Qt::AlignHCenter );
   layout->addWidget( label );
-  QgsRasterFormatSaveOptionsWidget* optionsWidget =
-    new QgsRasterFormatSaveOptionsWidget( &dlg, driverName,
-                                          QgsRasterFormatSaveOptionsWidget::Full, "gdal" );
-  layout->addWidget( optionsWidget );
 
-  if ( dlg.exec() == QDialog::Accepted )
+  if ( driverName == "_pyramids" )
   {
-    optionsWidget->apply();
+    QgsRasterPyramidsOptionsWidget* optionsWidget =
+      new QgsRasterPyramidsOptionsWidget( &dlg, "gdal" );
+    layout->addWidget( optionsWidget );
+    dlg.resize( 400, 400 );
+    if ( dlg.exec() == QDialog::Accepted )
+      optionsWidget->apply();
   }
+  else
+  {
+    QgsRasterFormatSaveOptionsWidget* optionsWidget =
+      new QgsRasterFormatSaveOptionsWidget( &dlg, driverName,
+                                            QgsRasterFormatSaveOptionsWidget::Full, "gdal" );
+    layout->addWidget( optionsWidget );
+    if ( dlg.exec() == QDialog::Accepted )
+      optionsWidget->apply();
+  }
+
 }
 
 // Return state of the visibility flag for newly added layers. If

src/gui/CMakeLists.txt

@@ -83,6 +83,7 @@ qgsprojectionselector.cpp
 qgsquickprint.cpp
 qgsrasterlayersaveasdialog.cpp
 qgsrasterformatsaveoptionswidget.cpp
+qgsrasterpyramidsoptionswidget.cpp
 qgsrubberband.cpp
 qgsscalecombobox.cpp
 qgstextannotationitem.cpp
@@ -93,6 +94,7 @@ qgsexpressionbuilderwidget.cpp
 qgsexpressionbuilderdialog.cpp
 qgsexpressionhighlighter.cpp
 qgsquerybuilder.cpp
+qgscollapsiblegroupbox.cpp
 )
 
 IF (WITH_TOUCH)
@@ -168,6 +170,7 @@ qgsprojectionselector.h
 qgsquickprint.h
 qgsrasterlayersaveasdialog.h
 qgsrasterformatsaveoptionswidget.h
+qgsrasterpyramidsoptionswidget.h
 qgsludialog.h
 qgsprojectbadlayerguihandler.h
 qgslonglongvalidator.h
@@ -176,6 +179,7 @@ qgsscalecombobox.h
 qgsexpressionbuilderwidget.h
 qgsexpressionhighlighter.h
 qgsquerybuilder.h
+qgscollapsiblegroupbox.h
 )
 
 QT4_WRAP_CPP(QGIS_GUI_MOC_SRCS ${QGIS_GUI_MOC_HDRS})
@@ -213,6 +217,7 @@ qgsfieldvalidator.h
 qgsexpressionbuilderwidget.h
 qgsexpressionbuilderdialog.h
 qgsexpressionhighlighter.h
+qgscollapsiblegroupbox.h
 
 attributetable/qgsattributetablemodel.h
 attributetable/qgsattributetablememorymodel.h

src/gui/qgscollapsiblegroupbox.cpp

@@ -0,0 +1,127 @@
+/***************************************************************************
+                          qgscollapsiblegroupbox.cpp
+                             -------------------
+    begin                : August 2012
+    copyright            : (C) 2012 by Etienne Tourigny
+    email                : etourigny dot dev at gmail dot 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 "qgscollapsiblegroupbox.h"
+
+#include "qgsapplication.h"
+#include "qgslogger.h"
+
+#include <QStyleOptionGroupBox>
+#include <QStylePainter>
+#include <QLayout>
+
+QgsCollapsibleGroupBox::QgsCollapsibleGroupBox( QWidget *parent )
+    : QGroupBox( parent ), mCollapsed( false )
+{
+  connect( this, SIGNAL( toggled( bool ) ), this, SLOT( setToggled( bool ) ) );
+}
+
+QgsCollapsibleGroupBox::QgsCollapsibleGroupBox( const QString &title, QWidget *parent )
+    : QGroupBox( title, parent ), mCollapsed( false )
+{}
+
+void QgsCollapsibleGroupBox::paintEvent( QPaintEvent * event )
+{
+  QGroupBox::paintEvent( event );
+
+  // paint expand/collapse icon only if groupbox is checkable as icon replaces check box
+  if ( ! isCheckable() )
+    return;
+
+  // create background mask + expand/collapse icon
+  // icons from http://www.iconfinder.com/search/?q=iconset%3AsplashyIcons
+  QPixmap icon( mCollapsed ?
+                QgsApplication::getThemePixmap( "/mIconExpand.png" ) :
+                QgsApplication::getThemePixmap( "/mIconCollapse.png" ) );
+  QPixmap background( icon.width() + 2, icon.height() + 2 );
+  background.fill( palette().color( backgroundRole() ) );
+
+  // paint on top of checkbox - does this work with all platforms/themes?
+  QStylePainter paint( this );
+  QStyleOptionGroupBox option;
+  initStyleOption( &option );
+  paint.drawComplexControl( QStyle::CC_GroupBox, option );
+  paint.drawItemPixmap( option.rect.adjusted( 4, -1, 0, 0 ),
+                        Qt::AlignTop | Qt::AlignLeft,
+                        background );
+  paint.drawItemPixmap( option.rect.adjusted( 6, 0, 0, 0 ),
+                        Qt::AlignTop | Qt::AlignLeft,
+                        icon );
+}
+
+void QgsCollapsibleGroupBox::showEvent( QShowEvent * event )
+{
+  QGroupBox::showEvent( event );
+  // collapse if needed - any calls to setCollapsed() before have no effect
+  if ( isCheckable() && ! isChecked() && ! isCollapsed() )
+    setCollapsed( true );
+}
+
+void QgsCollapsibleGroupBox::setCollapsed( bool collapse )
+{
+  if ( ! isVisible() )
+    return;
+
+  mCollapsed = collapse;
+
+  // minimize layout margins and save for subsequent restore
+  if ( collapse )
+  {
+    if ( layout() )
+    {
+      mMargins = layout()->contentsMargins();
+      layout()->setContentsMargins( 1, 1, 1, 1 );
+    }
+  }
+  else
+  {
+    if ( layout() )
+    {
+      layout()->setContentsMargins( mMargins );
+    }
+  }
+
+  // if we are collapsing, save hidden widgets in a list
+  if ( collapse )
+  {
+    mHiddenWidgets.clear();
+    foreach ( QWidget *widget, findChildren<QWidget*>() )
+    {
+      if ( widget->isHidden() )
+        mHiddenWidgets << widget;
+    }
+  }
+
+  // show/hide widgets
+  foreach ( QWidget *widget, findChildren<QWidget*>() )
+    widget->setHidden( collapse );
+
+  // if we are expanding, re-hide saved hidden widgets
+  if ( ! collapse )
+  {
+    foreach ( QWidget *widget, mHiddenWidgets )
+    {
+      widget->setHidden( true );
+    }
+  }
+
+  if ( mCollapsed )
+    emit collapsed( this );
+  else
+    emit expanded( this );
+}
+

src/gui/qgscollapsiblegroupbox.h

@@ -0,0 +1,58 @@
+/***************************************************************************
+                          qgscollapsiblegroupbox.h
+                             -------------------
+    begin                : August 2012
+    copyright            : (C) 2012 by Etienne Tourigny
+    email                : etourigny dot dev at gmail dot 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 QGSCOLLAPSIBLEGROUPBOX_H
+#define QGSCOLLAPSIBLEGROUPBOX_H
+
+#include "qgisgui.h"
+
+/** \ingroup gui
+ * A groupbox that collapses/expands when toggled and draws an expand/collapse icon in lieu of checkbox.
+ * Widget must be checkable for expand/collapse icon to appear.
+ */
+
+#include <QGroupBox>
+
+class GUI_EXPORT QgsCollapsibleGroupBox : public QGroupBox
+{
+    Q_OBJECT
+
+  public:
+    QgsCollapsibleGroupBox( QWidget *parent = 0 );
+    QgsCollapsibleGroupBox( const QString &title, QWidget *parent = 0 );
+
+    bool isCollapsed() const { return mCollapsed; }
+
+  signals:
+    void collapsed( QWidget* );
+    void expanded( QWidget* );
+
+  public slots:
+    void setToggled( bool toggled ) { setCollapsed( ! toggled ); }
+    void setCollapsed( bool collapse );
+
+  protected:
+    void paintEvent( QPaintEvent * );
+    void showEvent( QShowEvent * event );
+
+  private:
+    bool mCollapsed;
+    QMargins mMargins;
+    QList< QWidget* > mHiddenWidgets;
+};
+
+#endif