Add abakus

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/abakus@1071969 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 232 insertions, 0 deletions

diff --git a/src/abakuslistview.cpp b/src/abakuslistview.cpp
new file mode 100644
index 0000000..964c8a7
--- /dev/null
+++ b/src/abakuslistview.cpp
@@ -0,0 +1,232 @@
+/*
+ * abakuslistview.cpp - part of abakus
+ * Copyright (C) 2004, 2005 Michael Pyne <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02110-1301  USA
+ */
+#include <klocale.h>
+#include <kpopupmenu.h>
+#include <kdebug.h>
+
+#include <qdragobject.h>
+#include <qcursor.h>
+#include <qheader.h>
+
+#include "dragsupport.h"
+#include "abakuslistview.h"
+#include "valuemanager.h"
+#include "function.h"
+
+ListView::ListView(QWidget *parent, const char *name) :
+    KListView(parent, name), m_menu(0), m_usePopup(false), m_removeSingleId(0),
+    m_removeAllId(0)
+{
+    setResizeMode(LastColumn);
+    setDragEnabled(true);
+
+    connect(this, SIGNAL(contextMenuRequested(QListViewItem *, const QPoint &, int)),
+	          SLOT(rightClicked(QListViewItem *, const QPoint &)));
+}
+
+QDragObject *ListView::dragObject()
+{
+    QPoint viewportPos = viewport()->mapFromGlobal(QCursor::pos());
+    QListViewItem *item = itemAt(viewportPos);
+
+    if(!item)
+	return 0;
+
+    int column = header()->sectionAt(viewportPos.x());
+    QString dragText = item->text(column);
+
+    QDragObject *drag = new QTextDrag(dragText, this, "list item drag");
+    drag->setPixmap(DragSupport::makePixmap(dragText, font()));
+
+    return drag;
+}
+
+void ListView::enablePopupHandler(bool enable)
+{
+    if(enable == m_usePopup)
+	return;
+
+    m_usePopup = enable;
+
+    if(m_usePopup) {
+	if(m_menu)
+	    kdError() << "ListView menu shouldn't exist here!\n";
+
+	m_menu = new KPopupMenu(this);
+
+	m_removeSingleId = m_menu->insertItem(removeItemString(), this, SLOT(removeSelected()));
+	m_removeAllId = m_menu->insertItem("Placeholder", this, SLOT(removeAllItems()));
+    }
+    else {
+	delete m_menu;
+	m_menu = 0;
+    }
+}
+
+QString ListView::removeItemString() const
+{
+    return QString();
+}
+
+QString ListView::removeAllItemsString(unsigned count) const
+{
+    Q_UNUSED(count);
+
+    return QString();
+}
+
+void ListView::removeSelectedItem(QListViewItem *item)
+{
+    Q_UNUSED(item);
+}
+
+void ListView::removeAllItems()
+{
+}
+
+bool ListView::isItemRemovable(QListViewItem *item) const
+{
+    Q_UNUSED(item);
+
+    return false;
+}
+
+void ListView::rightClicked(QListViewItem *item, const QPoint &pt)
+{
+    if(!m_usePopup)
+	return;
+
+    m_menu->setItemEnabled(m_removeSingleId, item && isItemRemovable(item));
+    m_menu->changeItem(m_removeAllId, removeAllItemsString(childCount()));
+    m_menu->popup(pt);
+}
+
+void ListView::removeSelected()
+{
+    removeSelectedItem(selectedItem());
+}
+
+ValueListViewItem::ValueListViewItem(QListView *listView, const QString &name,
+	const Abakus::number_t &value) :
+    KListViewItem(listView, name), m_value(value)
+{
+    valueChanged();
+}
+
+void ValueListViewItem::valueChanged()
+{
+    setText(1, m_value.toString());
+    repaint();
+}
+
+void ValueListViewItem::valueChanged(const Abakus::number_t &newValue)
+{
+    m_value = newValue;
+
+    valueChanged();
+}
+
+Abakus::number_t ValueListViewItem::itemValue() const
+{
+    return m_value;
+}
+
+VariableListView::VariableListView(QWidget *parent, const char *name) :
+    ListView(parent, name)
+{
+    enablePopupHandler(true);
+}
+
+QString VariableListView::removeItemString() const
+{
+    return i18n("Remove selected variable");
+}
+
+QString VariableListView::removeAllItemsString(unsigned count) const
+{
+    // count is unreliable because not all of the elements in the list view
+    // can be removed.
+    count = 0;
+    QStringList values = ValueManager::instance()->valueNames();
+
+    for(QStringList::ConstIterator value = values.constBegin(); value != values.constEnd(); ++value)
+	if(!ValueManager::instance()->isValueReadOnly(*value))
+	    ++count;
+
+    return i18n("Remove all variables (1 variable)",
+	        "Remove all variables (%n variables)",
+		count);
+}
+
+bool VariableListView::isItemRemovable(QListViewItem *item) const
+{
+    return !ValueManager::instance()->isValueReadOnly(item->text(0));
+}
+
+void VariableListView::removeSelectedItem(QListViewItem *item)
+{
+    ValueManager::instance()->removeValue(item->text(0));
+}
+
+void VariableListView::removeAllItems()
+{
+    ValueManager::instance()->slotRemoveUserVariables();
+}
+
+FunctionListView::FunctionListView(QWidget *parent, const char *name) :
+    ListView(parent, name)
+{
+    enablePopupHandler(true);
+}
+
+QString FunctionListView::removeItemString() const
+{
+    return i18n("Remove selected function");
+}
+
+QString FunctionListView::removeAllItemsString(unsigned count) const
+{
+    return i18n("Remove all functions (1 function)",
+	        "Remove all functions (%n functions)",
+		count);
+}
+
+bool FunctionListView::isItemRemovable(QListViewItem *item) const
+{
+    return true;
+}
+
+void FunctionListView::removeSelectedItem(QListViewItem *item)
+{
+    // Use section to get the beginning of the string up to (and not
+    // including) the first (
+    QString name = item->text(0).section('(', 0, 0);
+
+    FunctionManager::instance()->removeFunction(name);
+}
+
+void FunctionListView::removeAllItems()
+{
+    QStringList fns = FunctionManager::instance()->functionList(FunctionManager::UserDefined);
+
+    for(QStringList::ConstIterator fn = fns.constBegin(); fn != fns.constEnd(); ++fn)
+       FunctionManager::instance()->removeFunction(*fn);
+}
+
+#include "abakuslistview.moc"