ProjectExplorer: allow adding expanding project settings widgets

Change-Id: I27dee2a8d1b14d1dcc535669e3dc9c5369ec2c81
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/projectexplorer/panelswidget.cpp

@@ -32,7 +32,7 @@ const int BELOW_CONTENTS_MARGIN = 16;
 // PanelsWidget
 ///
 
-PanelsWidget::PanelsWidget(QWidget *parent) : QWidget(parent)
+PanelsWidget::PanelsWidget(QWidget *parent, bool addStretch) : QWidget(parent)
 {
     m_root = new QWidget(nullptr);
     m_root->setFocusPolicy(Qt::NoFocus);
@@ -53,7 +53,8 @@ PanelsWidget::PanelsWidget(QWidget *parent) : QWidget(parent)
     m_layout->setSpacing(0);
 
     topLayout->addLayout(m_layout);
-    topLayout->addStretch(100);
+    if (addStretch)
+        topLayout->addStretch(1);
 
     auto layout = new QVBoxLayout(this);
     layout->setContentsMargins(0, 0, 0, 0);
@@ -72,7 +73,7 @@ PanelsWidget::PanelsWidget(const QString &displayName, QWidget *widget)
 }
 
 PanelsWidget::PanelsWidget(const QString &displayName, ProjectSettingsWidget *widget)
-    : PanelsWidget(nullptr)
+    : PanelsWidget(nullptr, !widget->expanding())
 {
     addPropertiesPanel(displayName);
     addGlobalSettingsProperties(widget);

src/plugins/projectexplorer/panelswidget.h

@@ -19,7 +19,7 @@ class PROJECTEXPLORER_EXPORT PanelsWidget : public QWidget
     Q_OBJECT
 
 public:
-    explicit PanelsWidget(QWidget *parent = nullptr);
+    explicit PanelsWidget(QWidget *parent = nullptr, bool addStretch = true);
     PanelsWidget(const QString &displayName, QWidget *widget);
     PanelsWidget(const QString &displayName, ProjectSettingsWidget *widget);
     ~PanelsWidget() override;

src/plugins/projectexplorer/projectsettingswidget.cpp

@@ -65,4 +65,14 @@ void ProjectSettingsWidget::setGlobalSettingsId(Utils::Id globalId)
     m_globalSettingsId = globalId;
 }
 
+bool ProjectSettingsWidget::expanding() const
+{
+    return m_expanding;
+}
+
+void ProjectSettingsWidget::setExpanding(bool expanding)
+{
+    m_expanding = expanding;
+}
+
 } // ProjectExplorer

src/plugins/projectexplorer/projectsettingswidget.h

@@ -27,6 +27,9 @@ public:
     bool isUseGlobalSettingsLabelVisible() const;
     Utils::Id globalSettingsId() const;
 
+    bool expanding() const;
+    void setExpanding(bool expanding);
+
 protected:
     void setUseGlobalSettingsCheckBoxVisible(bool visible);
     void setUseGlobalSettingsLabelVisible(bool visible);
@@ -41,6 +44,7 @@ private:
     bool m_useGlobalSettingsCheckBoxEnabled = true;
     bool m_useGlobalSettingsCheckBoxVisibleVisible = true;
     bool m_useGlobalSettingsLabelVisibleVisible = true;
+    bool m_expanding = false;
     Utils::Id m_globalSettingsId;
 };