diff options
Diffstat (limited to 'src/abakuslistview.cpp')
| -rw-r--r-- | src/abakuslistview.cpp | 232 |
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" |