Created an attachment (id=16051) [details]
Enable selection of multiple classes in "Select classes" dialog

Available classes list and selected classes list now allow multiple classes
selected (dragging with mouse or selecting with ctrl and shift buttons).

However ,I haven't added the "add/remove all" buttons, because in my humble
opinion they aren't needed. Interface is very clean and simple right now, and I
like it. And the behaviour of those buttons can be made clicking the first
item, dragging to the last item, and clicking the add or remove button, which
is fairly easy and quick.

About the patch itself, I edited the .ui file using QT Designer, but it updated
the ui file version to 3.3 and made some changes such as the images format. So
I reverted those changes and edited it manually keeping everything and simply
adding the new selection mode. I think that the syntax used is available in
version 3.0 (at least, it compiles and works), but I'm not sure.

Thanks for your patch.
Since we are in string freeze for KDE 3.5.3 I'm afraid we'll
have to wait with committing it till after the release.

SVN commit 548269 by danxuliu:

Attachment 16051 [details] enables selection of multiple classes in "Select
classes" dialog.
FEATURE: 126485

 M  +26 -18    codegenerationwizard.cpp
 M  +18 -0     codegenerationwizard.h
 M  +6 -0      codegenerationwizardbase.ui


--- branches/KDE/3.5/kdesdk/umbrello/umbrello/dialogs/codegenerationwizard.cpp
#548268:548269
@@ -76,29 +76,19 @@


 void CodeGenerationWizard::selectClass() {
-    if( !m_availableList->selectedItem() ) {
-        return;
+    moveSelectedItems(m_availableList, m_selectedList);
+
+    if (m_selectedList->childCount() > 0) {
+        setNextEnabled(currentPage(), true);
     }
-    QString name = m_availableList->selectedItem()->text(0);
-    if( !m_selectedList->findItem( name,0 ) ) {
-        new QListViewItem(m_selectedList, name);
-    }
-    m_availableList->removeItem( m_availableList->selectedItem() );
-    setNextEnabled(currentPage(),true);
 }

 void CodeGenerationWizard::deselectClass() {
-    if( !m_selectedList->selectedItem() ) {
-        return;
+    moveSelectedItems(m_selectedList, m_availableList);
+
+    if (m_selectedList->childCount() == 0) {
+        setNextEnabled(currentPage(), false);
     }
-    QString name = m_selectedList->selectedItem()->text(0);
-    if( !m_availableList->findItem(name, 0) ) {
-        new QListViewItem(m_availableList, name);
-    }
-    if(m_selectedList->childCount() == 0) {
-        setNextEnabled(currentPage(),false);
-    }
-    m_selectedList->removeItem( m_selectedList->selectedItem() );
 }

 void CodeGenerationWizard::generateCode() {
@@ -231,6 +221,24 @@
     return (CodeGenerator*) NULL;
 }

+void CodeGenerationWizard::moveSelectedItems(QListView* fromList,
QListView* toList) {
+   QListViewItemIterator it(fromList, QListViewItemIterator::Selected);
+    while (it.current()) {
+        QListViewItem* selectedItem = it.current();
+
+        QString name = selectedItem->text(0);
+        if (!toList->findItem(name, 0)) {
+            new QListViewItem(toList, name);
+        }
+
+        ++it;
+
+        //Removed here because it can't (really, shouldn't) be removed while
+        //iterator is pointing to it
+        fromList->removeItem(selectedItem);
+    }
+}
+
 // when we change language, we need to update the codegenoptions page
 // language-dependent stuff. THe way to do this is to call its "apply" method.
 void CodeGenerationWizard::changeLanguage()
--- branches/KDE/3.5/kdesdk/umbrello/umbrello/dialogs/codegenerationwizard.h
#548268:548269
@@ -49,7 +49,17 @@
         return QWizard::exec();
     }
 protected slots:
+
+    /**
+     * Adds the classes selected in the available classes list to the
+     * list of classes used to generate the code.
+     */
     void selectClass();
+
+    /**
+     * Removes the classes selected in the selected classes list from the
+     * list of classes used to generate the code.
+     */
     void deselectClass();
     void populateStatusList();
     void generateCode();
@@ -62,6 +72,14 @@
 private:
     CodeGenerator* generator();

+    /**
+     * Moves the selected items from first list to second list.
+     * The selected items are removed from the first list and added to the
+     * second. An item is added to the second list only if it isn't already
+     * there (no duplicated items are created).
+     */
+    void moveSelectedItems(QListView* fromList, QListView* toList);
+
     UMLApp* m_app;
     UMLDoc* m_doc;
     CodeGenerationOptionsPage* m_CodeGenerationOptionsPage;
--- branches/KDE/3.5/kdesdk/umbrello/umbrello/dialogs/codegenerationwizardbase.ui
#548268:548269
@@ -118,6 +118,9 @@
                                 <verstretch>0</verstretch>
                             </sizepolicy>
                         </property>
+                        <property name="selectionMode">
+                            <enum>Extended</enum>
+                        </property>
                     </widget>
                     <widget class="QPushButton" row="3" column="1">
                         <property name="name">
@@ -173,6 +176,9 @@
                                 <verstretch>0</verstretch>
                             </sizepolicy>
                         </property>
+                        <property name="selectionMode">
+                            <enum>Extended</enum>
+                        </property>
                     </widget>
                     <spacer row="4" column="1">
                         <property name="name" stdset="0">