From 74eb35164d4241a3dd3280badbc2fe2fd99990f2 Mon Sep 17 00:00:00 2001
From: nds <nds@opencascade.com>
Date: Tue, 12 Jul 2016 15:51:29 +0300
Subject: [PATCH] #1658 New widget supporting nested option buttons

---
 .../ModuleBase_WidgetCheckGroupBox.cpp        | 24 ++++++++++++++++++-
 .../ModuleBase_WidgetCheckGroupBox.h          |  5 ++++
 2 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/src/ModuleBase/ModuleBase_WidgetCheckGroupBox.cpp b/src/ModuleBase/ModuleBase_WidgetCheckGroupBox.cpp
index 05b0fc43f..a2bf7d60e 100755
--- a/src/ModuleBase/ModuleBase_WidgetCheckGroupBox.cpp
+++ b/src/ModuleBase/ModuleBase_WidgetCheckGroupBox.cpp
@@ -24,16 +24,18 @@ ModuleBase_WidgetCheckGroupBox::ModuleBase_WidgetCheckGroupBox(QWidget* theParen
 {
   QString aToolTip = QString::fromStdString(theData->widgetTooltip());
   bool isChecked = theData->getBooleanAttribute(ATTR_DEFAULT, false);
+  setDefaultValue(isChecked ? "true" : "false");
 
   QVBoxLayout* aMainLayout = new QVBoxLayout(this);
   ModuleBase_Tools::zeroMargins(aMainLayout);
+  aMainLayout->setMargin(2);
   myGroupBox = new QGroupBox(this);
   myGroupBox->setCheckable(true);
   myGroupBox->setToolTip(aToolTip);
   myGroupBox->setChecked(isChecked);
 
   myMainLayout = new QGridLayout(myGroupBox);
-  ModuleBase_Tools::adjustMargins(myMainLayout);
+  ModuleBase_Tools::zeroMargins(myMainLayout);
   myGroupBox->setLayout(myMainLayout);
 
   // default vertical size policy is preferred
@@ -66,6 +68,7 @@ QList<QWidget*> ModuleBase_WidgetCheckGroupBox::getControls() const
 void ModuleBase_WidgetCheckGroupBox::onPageClicked()
 {
   storeValue();
+  updatePagesVisibility();
 }
 
 void ModuleBase_WidgetCheckGroupBox::addPageStretch()
@@ -82,6 +85,7 @@ void ModuleBase_WidgetCheckGroupBox::placeModelWidget(ModuleBase_ModelWidget* th
   myMainLayout->addWidget(theWidget, kRow, kCol, Qt::AlignTop);// | Qt::AlignLeft);
   myMainLayout->setRowStretch(kRow, 0);
 
+  theWidget->setVisible(myGroupBox->isChecked());
 }
 
 void ModuleBase_WidgetCheckGroupBox::placeWidget(QWidget* theWidget)
@@ -121,7 +125,25 @@ bool ModuleBase_WidgetCheckGroupBox::restoreValueCustom()
 
   bool isBlocked = myGroupBox->blockSignals(true);
   myGroupBox->setChecked(!aStringAttr->value().empty());
+  updatePagesVisibility();
   myGroupBox->blockSignals(isBlocked);
 
   return true;
 }
+
+void ModuleBase_WidgetCheckGroupBox::updatePagesVisibility()
+{
+  bool aVisible = myGroupBox->isChecked();
+
+  if (aVisible)
+    ModuleBase_Tools::zeroMargins(myMainLayout);
+  else
+    ModuleBase_Tools::adjustMargins(myMainLayout);
+
+  int aNbSubControls = myMainLayout->count();
+  for (int i = 0; i < aNbSubControls; i++) {
+    QWidget* aWidget = myMainLayout->itemAt(i)->widget();
+    if (aWidget)
+      aWidget->setVisible(aVisible);
+  }
+}
diff --git a/src/ModuleBase/ModuleBase_WidgetCheckGroupBox.h b/src/ModuleBase/ModuleBase_WidgetCheckGroupBox.h
index 4e0dd3983..5cf821eef 100755
--- a/src/ModuleBase/ModuleBase_WidgetCheckGroupBox.h
+++ b/src/ModuleBase/ModuleBase_WidgetCheckGroupBox.h
@@ -73,6 +73,11 @@ protected:
   virtual bool restoreValueCustom();
   /// Methods to be redefined from ModuleBase_ModelWidget: end
 
+private:
+  /// Makes the children page of the group box visible if the checked state is on
+  /// otherwise, make the sub-pages is not visible.
+  void updatePagesVisibility();
+
 private:
   QGroupBox* myGroupBox;
   QGridLayout* myMainLayout; ///< page's layout
-- 
2.39.2