diff options
Diffstat (limited to '')
| -rw-r--r-- | lsscenemodel.cpp | 201 |
1 files changed, 0 insertions, 201 deletions
diff --git a/lsscenemodel.cpp b/lsscenemodel.cpp deleted file mode 100644 index 1e55cdd..0000000 --- a/lsscenemodel.cpp +++ /dev/null @@ -1,201 +0,0 @@ -#include "lsscenemodel.h" -#include "lsglobals.h" - -LSSceneModel::LSSceneModel(LYTLayout *layout, bool exposeVisibility, QObject *parent) : - QAbstractItemModel(parent), m_exposesVisibility(exposeVisibility) -{ - m_layout = layout; - - m_paneIcons[LYTPane::PaneType] = LSGlobals::getIcon("pane"); - m_paneIcons[LYTPane::PictureType] = LSGlobals::getIcon("picture"); - m_paneIcons[LYTPane::TextBoxType] = LSGlobals::getIcon("textbox"); - m_paneIcons[LYTPane::WindowType] = LSGlobals::getIcon("window"); - m_paneIcons[LYTPane::BoundingType] = LSGlobals::getIcon("bounding"); - - m_movingPaneParent = 0; -} - -LSSceneModel::~LSSceneModel() { - if (m_movingPaneParent) - delete m_movingPaneParent; -} - - -QModelIndex LSSceneModel::index(int row, int column, const QModelIndex &parent) const { - if (!hasIndex(row, column, parent)) - return QModelIndex(); - - if (!parent.isValid()) - return createIndex(row, column, m_layout->rootPane); - - // what's the parent..? - LYTPane *parentPane = (LYTPane*)parent.internalPointer(); - LYTPane *pane = parentPane->children.at(row); - return createIndex(row, column, pane); -} - -QModelIndex LSSceneModel::parent(const QModelIndex &child) const { - if (!child.isValid()) - return QModelIndex(); - - LYTPane *childPane = (LYTPane*)child.internalPointer(); - LYTPane *parentPane = childPane->parent; - if (parentPane) { - LYTPane *parentParentPane = parentPane->parent; - int index = parentParentPane ? parentParentPane->children.indexOf(parentPane) : 0; - return createIndex(index, 0, parentPane); - } else { - return QModelIndex(); - } -} - -int LSSceneModel::rowCount(const QModelIndex &parent) const { - if (!parent.isValid()) { - return 1; // the root pane - } - - LYTPane *parentPane = (LYTPane*)parent.internalPointer(); - return parentPane->children.count(); -} - -int LSSceneModel::columnCount(const QModelIndex &parent) const { - (void)parent; - return 1; -} - -QVariant LSSceneModel::data(const QModelIndex &index, int role) const { - LYTPane *pane = (LYTPane*)index.internalPointer(); - if (pane) { - switch (role) { - case Qt::DisplayRole: - return pane->name; - case Qt::DecorationRole: - return m_paneIcons[pane->type()]; - } - - if (m_exposesVisibility && role == Qt::CheckStateRole) { - return pane->visible ? Qt::Checked : Qt::Unchecked; - } - } - return QVariant(); -} - -bool LSSceneModel::setData(const QModelIndex &index, const QVariant &value, int role) { - if (m_exposesVisibility && role == Qt::CheckStateRole) { - LYTPane *pane = (LYTPane*)index.internalPointer(); - - bool newVisible = value.toBool(); - if (pane->visible != newVisible) { - pane->visible = newVisible; - emit dataChanged(index, index); - emit paneVisibilityChanged(); - } - } - - return false; -} - - -Qt::ItemFlags LSSceneModel::flags(const QModelIndex &index) const { - Qt::ItemFlags flag; - flag = Qt::ItemIsEnabled | Qt::ItemIsSelectable | - Qt::ItemIsDropEnabled; - - if (index.isValid() && index.parent().isValid()) - flag |= Qt::ItemIsDragEnabled; - - if (m_exposesVisibility) - flag |= Qt::ItemIsUserCheckable; - - return flag; -} - - -Qt::DropActions LSSceneModel::supportedDropActions() const { - return Qt::MoveAction; -} - - -// I am doing a terrible, terrible, terrible thing here. -// I hate drag-and-drop. - -// As far as I can see, insertRows and removeRows are ONLY called by Qt when -// dragging something. So instead of doing a real insertion/removal... I'll -// store the intended destination, and once I'm told what pane needs to be -// removed (moved) I do the whole thing at once. - -bool LSSceneModel::insertRows(int row, int count, const QModelIndex &parent) { - qDebug("LSSceneModel::insertRows(%d, %d, something)", row, count); - - if (m_movingPaneParent) { - qWarning("huh, already moving something? dunno"); - return false; - } - - if (!parent.isValid()) { - qWarning("can't move stuff to the top level"); - return false; - } - - m_movingPaneParent = new QPersistentModelIndex(parent); - m_movingPaneRow = row; - m_movingPaneCount = count; - - return true; -} - -bool LSSceneModel::removeRows(int row, int count, const QModelIndex &parent) { - qDebug("LSSceneModel::removeRows(%d, %d, something)", row, count); - - if (!m_movingPaneParent) { - qWarning("huh, not moving anything / nothing left to move? dunno"); - return false; - } - - // detach all the existing panes - LYTPane *parentPane = (LYTPane*)parent.internalPointer(); - - QVector<LYTPane *> removingPanes; - removingPanes.reserve(count); - - beginRemoveRows(parent, row, row + count - 1); - for (int i = 0; i < count; i++) { - removingPanes.append(parentPane->children.at(row)); - parentPane->children.removeAt(row); - } - endRemoveRows(); - - // now add them in their new homes! - LYTPane *newParentPane = (LYTPane*)m_movingPaneParent->internalPointer(); - - // note: compensate for the offset: if we're moving the thing within the - // same parent and the destination row is higher than the source row, then - // removing the source row will have changed the index of the row the user - // actually wanted to move the moved row to... what a terrible sentence :| - if (*m_movingPaneParent == parent && m_movingPaneRow > row) - m_movingPaneRow -= count; - - beginInsertRows(*m_movingPaneParent, m_movingPaneRow, m_movingPaneRow + count - 1); - - for (int i = 0; i < count; i++) { - LYTPane *pane = removingPanes.at(i); - - pane->parent = newParentPane; - newParentPane->children.insert(m_movingPaneRow, pane); - - m_movingPaneRow++; - } - - endInsertRows(); - - // clean up if needed - m_movingPaneCount -= count; - - if (m_movingPaneCount <= 0) { - delete m_movingPaneParent; - m_movingPaneParent = 0; - } - - return true; -} - |