ProjectExplorer: Let the KitChooser optionally show icons

There are cases in the debugger where it's more convenient
or with the current state of Abi matching even needed to
use non-matching kits. Still, visual hints are helpful.

Change-Id: I66ca89cbd1664f43864873e3b4d81a9c8e1b36fa
Reviewed-by: David Schulz <david.schulz@qt.io>

src/plugins/projectexplorer/kit.cpp

@@ -39,6 +39,7 @@
 #include <utils/optional.h>
 #include <utils/qtcassert.h>
 #include <utils/stringutils.h>
+#include <utils/utilsicons.h>
 
 #include <QApplication>
 #include <QFileInfo>
@@ -400,6 +401,20 @@ QIcon Kit::icon() const
     return d->m_cachedIcon;
 }
 
+QIcon Kit::displayIcon() const
+{
+    QIcon result = icon();
+    if (hasWarning()) {
+         static const QIcon warningIcon(Utils::Icons::WARNING.icon());
+         result = warningIcon;
+    }
+    if (!isValid()) {
+        static const QIcon errorIcon(Utils::Icons::CRITICAL.icon());
+        result = errorIcon;
+    }
+    return result;
+}
+
 FilePath Kit::iconPath() const
 {
     return d->m_iconPath;

src/plugins/projectexplorer/kit.h

@@ -96,7 +96,8 @@ public:
     // all other aspects are equal.
     int weight() const;
 
-    QIcon icon() const;
+    QIcon icon() const; // Raw device icon, independent of warning or error.
+    QIcon displayIcon() const; // Error or warning or device icon.
     Utils::FilePath iconPath() const;
     void setIconPath(const Utils::FilePath &path);
     void setDeviceTypeForIcon(Core::Id deviceType);

src/plugins/projectexplorer/kitchooser.cpp

@@ -72,6 +72,11 @@ void KitChooser::onManageButtonClicked()
     Core::ICore::showOptionsDialog(Constants::KITS_SETTINGS_PAGE_ID, this);
 }
 
+void KitChooser::setShowIcons(bool showIcons)
+{
+    m_showIcons = showIcons;
+}
+
 void KitChooser::onCurrentIndexChanged()
 {
     const Id id = Id::fromSetting(m_chooser->currentData());
@@ -127,9 +132,12 @@ void KitChooser::populate()
     foreach (Kit *kit, KitManager::sortKits(KitManager::kits())) {
         if (m_kitPredicate(kit)) {
             m_chooser->addItem(kitText(kit), kit->id().toSetting());
-            m_chooser->setItemData(m_chooser->count() - 1, kitToolTip(kit), Qt::ToolTipRole);
+            const int pos = m_chooser->count() - 1;
+            m_chooser->setItemData(pos, kitToolTip(kit), Qt::ToolTipRole);
+            if (m_showIcons)
+                m_chooser->setItemData(pos, kit->displayIcon(), Qt::DecorationRole);
             if (!didActivate && kit->id() == lastKit) {
-                m_chooser->setCurrentIndex(m_chooser->count() - 1);
+                m_chooser->setCurrentIndex(pos);
                 didActivate = true;
             }
         }

src/plugins/projectexplorer/kitchooser.h

@@ -54,6 +54,7 @@ public:
     Core::Id currentKitId() const;
 
     void setKitPredicate(const Kit::Predicate &predicate);
+    void setShowIcons(bool showIcons);
 
     Kit *currentKit() const;
     bool hasStartupKit() const { return m_hasStartupKit; }
@@ -78,6 +79,7 @@ private:
     QComboBox *m_chooser;
     QPushButton *m_manageButton;
     bool m_hasStartupKit = false;
+    bool m_showIcons = false;
 };
 
 } // namespace ProjectExplorer

src/plugins/projectexplorer/kitmanagerconfigwidget.cpp

@@ -39,6 +39,7 @@
 #include <utils/macroexpander.h>
 #include <utils/pathchooser.h>
 #include <utils/qtcassert.h>
+#include <utils/utilsicons.h>
 
 #include <QAction>
 #include <QRegularExpression>
@@ -155,9 +156,15 @@ QString KitManagerConfigWidget::displayName() const
     return m_cachedDisplayName;
 }
 
-QIcon KitManagerConfigWidget::icon() const
+QIcon KitManagerConfigWidget::displayIcon() const
 {
-    return m_modifiedKit->icon();
+    // Special case: Extra warning if there are no errors but name is not unique.
+    if (m_modifiedKit->isValid() && !m_hasUniqueName) {
+        static const QIcon warningIcon(Utils::Icons::WARNING.icon());
+        return warningIcon;
+    }
+
+    return m_modifiedKit->displayIcon();
 }
 
 void KitManagerConfigWidget::apply()
@@ -199,16 +206,6 @@ bool KitManagerConfigWidget::isDirty() const
             || m_isDefaultKit != (KitManager::defaultKit() == m_kit);
 }
 
-bool KitManagerConfigWidget::isValid() const
-{
-    return m_modifiedKit->isValid();
-}
-
-bool KitManagerConfigWidget::hasWarning() const
-{
-    return m_modifiedKit->hasWarning() || !m_hasUniqueName;
-}
-
 QString KitManagerConfigWidget::validityMessage() const
 {
     Tasks tmp;

src/plugins/projectexplorer/kitmanagerconfigwidget.h

@@ -52,13 +52,11 @@ public:
     ~KitManagerConfigWidget() override;
 
     QString displayName() const;
-    QIcon icon() const;
+    QIcon displayIcon() const;
 
     void apply();
     void discard();
     bool isDirty() const;
-    bool isValid() const;
-    bool hasWarning() const;
     QString validityMessage() const;
     void addAspectToWorkingCopy(KitAspect *aspect);
     void makeStickySubWidgetsReadOnly();

src/plugins/projectexplorer/kitmodel.cpp

@@ -85,15 +85,7 @@ public:
                 return baseName;
             }
             if (role == Qt::DecorationRole) {
-                if (!widget->isValid()) {
-                    static const QIcon errorIcon(Utils::Icons::CRITICAL.icon());
-                    return errorIcon;
-                }
-                if (widget->hasWarning()) {
-                    static const QIcon warningIcon(Utils::Icons::WARNING.icon());
-                    return warningIcon;
-                }
-                return widget->icon();
+                return widget->displayIcon();
             }
             if (role == Qt::ToolTipRole) {
                 return widget->validityMessage();