Changeset 9872 in vbox for trunk/src/VBox/Frontends/VirtualBox4

Timestamp:

Jun 23, 2008 1:26:35 PM (16 years ago)

Author:

vboxsync

Message:

Fe/Qt4: Extend QITreeWidget api to let it's complex items have separate painting routines.

Location:

trunk/src/VBox/Frontends/VirtualBox4

Files:

• include/QITreeWidget.h (modified) (3 diffs)
• src/QITreeWidget.cpp (modified) (2 diffs)
• src/VBoxDiskImageManagerDlg.cpp (modified) (3 diffs)

trunk/src/VBox/Frontends/VirtualBox4/include/QITreeWidget.h

@@ -24 +24 @@
 #define __QITreeWidget_h__
 
-/* Qt includes */
 #include <QTreeWidget>
 
+/*
+ * QTreeWidget class which extends standard QTreeWidget's functionality.
+ */
 class QITreeWidget: public QTreeWidget
 {
@@ -32 +34 @@
 
 public:
+
+    /*
+     * There are two allowed QTreeWidgetItem types which may be used with
+     * QITreeWidget: basic and complex.
+     * Complex type used in every place where the particular item have to
+     * be separately repainted with it's own content.
+     * Basic are used in all other places.
+     */
+    enum
+    {
+        BasicItemType   = QTreeWidgetItem::UserType + 1,
+        ComplexItemType = QTreeWidgetItem::UserType + 2
+    };
 
     QITreeWidget (QWidget *aParent = 0);
@@ -41 +56 @@
     virtual Qt::DropActions supportedDropActions () const;
 
+    void paintEvent (QPaintEvent *);
+
     /* Protected member vars */
     Qt::DropActions mSupportedDropActions;
 };
 
+/*
+ * Interface for more complex items which requires special repainting
+ * routine inside QITreeWidget's viewport.
+ */
+class ComplexTreeWidgetItem : public QTreeWidgetItem
+{
+public:
+
+    ComplexTreeWidgetItem (QTreeWidget *aParent)
+        : QTreeWidgetItem  (aParent, QITreeWidget::ComplexItemType) {}
+
+    virtual void paintItem (QPainter *aPainter) = 0;
+};
+
 #endif /* __QITreeWidget_h__ */
 

trunk/src/VBox/Frontends/VirtualBox4/src/QITreeWidget.cpp

@@ -23 +23 @@
 #include "QITreeWidget.h"
 
-/* Qt includes */
-#include <QMouseEvent>
+#include <QPainter>
 
 QITreeWidget::QITreeWidget (QWidget *aParent)
@@ -41 +40 @@
 }
 
+void QITreeWidget::paintEvent (QPaintEvent *aEvent)
+{
+    /* Painter for items */
+    QPainter painter (viewport());
+
+    /* Here we let the items make some painting inside the viewport. */
+    QTreeWidgetItemIterator it (this);
+    while (*it)
+    {
+        switch ((*it)->type())
+        {
+            case ComplexItemType:
+            {
+                /* Let the ComplexItem paint itself */
+                ComplexTreeWidgetItem *i = static_cast<ComplexTreeWidgetItem*> (*it);
+                i->paintItem (&painter);
+                break;
+            }
+            case BasicItemType:
+            {
+                /* Do nothing for BasicItem */
+                break;
+            }
+            default:
+            {
+                /* Wrong item is used */
+                break;
+            }
+        }
+        ++ it;
+    }
+
+    QTreeWidget::paintEvent (aEvent);
+}
+

trunk/src/VBox/Frontends/VirtualBox4/src/VBoxDiskImageManagerDlg.cpp

@@ -57 +57 @@
 public:
 
-    enum { TypeId = QTreeWidgetItem::UserType + 1 };
-
     DiskImageItem (DiskImageItem *aParent) :
-        QTreeWidgetItem (aParent, TypeId), mStatus (VBoxMedia::Unknown) {}
+        QTreeWidgetItem (aParent, QITreeWidget::BasicItemType), mStatus (VBoxMedia::Unknown) {}
 
     DiskImageItem (QTreeWidget *aParent) :
-        QTreeWidgetItem (aParent, TypeId), mStatus (VBoxMedia::Unknown) {}
+        QTreeWidgetItem (aParent, QITreeWidget::BasicItemType), mStatus (VBoxMedia::Unknown) {}
 
     void setMedia (const VBoxMedia &aMedia) { mMedia = aMedia; }
@@ -182 +180 @@
     {
         QTreeWidgetItem *item = QTreeWidgetItemIterator::operator*();
-        return item && item->type() == DiskImageItem::TypeId ?
+        return item && item->type() == QITreeWidget::BasicItemType ?
             static_cast<DiskImageItem*> (item) : NULL;
     }
@@ -1457 +1455 @@
     DiskImageItem *item = NULL;
     if (aItem &&
-        aItem->type() == DiskImageItem::TypeId)
+        aItem->type() == QITreeWidget::BasicItemType)
         item = static_cast <DiskImageItem *> (aItem);