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https://git.lyx.org/repos/lyx.git
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1fc477efac
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@27420 a592a061-630c-0410-9148-cb99ea01b6c8
148 lines
3.3 KiB
C++
148 lines
3.3 KiB
C++
/**
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* \file PanelStack.cpp
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author John Levon
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "PanelStack.h"
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#include "qt_helpers.h"
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#include "support/debug.h"
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#include <QFontMetrics>
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#include <QHBoxLayout>
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#include <QHeaderView>
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#include <QStackedWidget>
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#include <QTreeWidget>
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#include "support/lassert.h"
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using namespace std;
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namespace lyx {
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namespace frontend {
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PanelStack::PanelStack(QWidget * parent)
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: QWidget(parent)
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{
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list_ = new QTreeWidget(this);
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stack_ = new QStackedWidget(this);
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list_->setRootIsDecorated(false);
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list_->setColumnCount(1);
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list_->header()->hide();
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connect(list_, SIGNAL(currentItemChanged(QTreeWidgetItem*, QTreeWidgetItem*)),
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this, SLOT(switchPanel(QTreeWidgetItem *, QTreeWidgetItem*)));
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connect(list_, SIGNAL(itemClicked (QTreeWidgetItem*, int)),
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this, SLOT(itemSelected(QTreeWidgetItem *, int)));
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QHBoxLayout * layout = new QHBoxLayout(this);
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layout->addWidget(list_, 0);
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layout->addWidget(stack_, 1);
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}
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void PanelStack::addCategory(QString const & name, QString const & parent)
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{
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QTreeWidgetItem * item = 0;
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LYXERR(Debug::GUI, "addCategory n= " << name << " parent= ");
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int depth = 1;
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if (parent.isEmpty()) {
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item = new QTreeWidgetItem(list_);
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item->setText(0, name);
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}
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else {
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if (!panel_map_.contains(parent))
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addCategory(parent);
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item = new QTreeWidgetItem(panel_map_.value(parent));
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item->setText(0, name);
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depth = 2;
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list_->setRootIsDecorated(true);
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}
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panel_map_[name] = item;
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QFontMetrics fm(list_->font());
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// calculate the real size the current item needs in the listview
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int itemsize = fm.width(name) + 10 + list_->indentation() * depth;
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// adjust the listview width to the max. itemsize
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if (itemsize > list_->minimumWidth())
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list_->setMinimumWidth(itemsize);
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}
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void PanelStack::addPanel(QWidget * panel, QString const & name, QString const & parent)
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{
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addCategory(name, parent);
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QTreeWidgetItem * item = panel_map_.value(name);
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widget_map_[item] = panel;
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stack_->addWidget(panel);
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stack_->setMinimumSize(panel->minimumSize());
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}
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void PanelStack::setCurrentPanel(QString const & name)
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{
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QTreeWidgetItem * item = panel_map_.value(name, 0);
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LASSERT(item, return);
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// force on first set
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if (list_->currentItem() == item)
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switchPanel(item);
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list_->setCurrentItem(item);
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}
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void PanelStack::switchPanel(QTreeWidgetItem * item,
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QTreeWidgetItem * previous)
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{
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// do nothing when clicked on whitespace (item=NULL)
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if( !item )
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return;
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// if we have a category, expand the tree and go to the
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// first item
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if (item->childCount() > 0) {
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item->setExpanded(true);
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if (previous && previous->parent() != item)
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switchPanel( item->child(0), previous );
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}
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else if (QWidget * w = widget_map_.value(item, 0)) {
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stack_->setCurrentWidget(w);
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}
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}
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void PanelStack::itemSelected(QTreeWidgetItem * item, int)
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{
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// de-select the category if a child is selected
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if (item->childCount() > 0 && item->child(0)->isSelected())
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item->setSelected(false);
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}
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QSize PanelStack::sizeHint() const
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{
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return QSize(list_->width() + stack_->width(),
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qMax(list_->height(), stack_->height()));
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}
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} // namespace frontend
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} // namespace lyx
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#include "moc_PanelStack.cpp"
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