src/frontends/qt4/panelstack.C

   1 /**
   2  * \file panelstack.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author John Levon
   7  *
   8  * Full author contact details are available in file CREDITS.
   9  */
  10
  11 #include <config.h>
  12
  13 #include "panelstack.h"
  14
  15 #include "qt_helpers.h"
  16
  17 #include <QStackedWidget>
  18 #include <QFontMetrics>
  19 #include <QTreeWidget>
  20 #include <QHBoxLayout>
  21 #include <QLayout>
  22
  23 #include <boost/assert.hpp>
  24
  25 using std::string;
  26
  27 #include <iostream>
  28 using std::endl;
  29 using std::cout;
  30
  31
  32 PanelStack::PanelStack(QWidget * parent)
  33         : QWidget(parent)
  34 {
  35         list_ = new QTreeWidget(this);
  36         stack_ = new QStackedWidget(this);
  37
  38         list_->setColumnCount(1);
  39         list_->setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding));
  40         stack_->setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding));
  41
  42         list_->setSortingEnabled(false);
  43 //      list_->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
  44 //      list_->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
  45 //      list_->addColumn("");
  46 //      list_->setColumnWidthMode(0, QTreeWidget::Maximum);
  47
  48 //      list_->setResizeMode(QTreeWidget::AllColumns);
  49
  50         QStringList HeaderLabels; HeaderLabels << QString("Category");
  51         list_->setHeaderLabels(HeaderLabels);
  52
  53         connect(list_, SIGNAL(currentItemChanged (QTreeWidgetItem*, QTreeWidgetItem*)),
  54                 this, SLOT(switchPanel(QTreeWidgetItem *, QTreeWidgetItem*)));
  55
  56         QHBoxLayout * layout = new QHBoxLayout(this);
  57         layout->addWidget(list_, 0);
  58         layout->addWidget(stack_, 1);
  59 }
  60
  61
  62 void PanelStack::addCategory(string const & n, string const & parent)
  63 {
  64         QTreeWidgetItem * item;
  65
  66         QString name = toqstr(n);
  67
  68         cout << "addCategory n= " << n << "   parent= " << endl;
  69
  70         if (parent.empty()) {
  71                 item = new QTreeWidgetItem(list_);
  72                 item->setText(0, name);
  73                 //list_->addTopLevelItem(item);
  74         }
  75         else {
  76                 PanelMap::iterator it = panel_map_.find(parent);
  77                 BOOST_ASSERT(it != panel_map_.end());
  78                 item = new QTreeWidgetItem(it->second);
  79                 item->setText(0, name);
  80                 //it->second->addChild(item);
  81         }
  82
  83         panel_map_[n] = item;
  84
  85         list_->setFixedWidth(list_->sizeHint().width());
  86 /*
  87         item->setFlags(false);
  88         item->setOpen(true);
  89
  90         // calculate the real size the current item needs in the listview
  91         int itemsize = item->width(list_->fontMetrics(), list_, 0) + 10
  92                    + list_->treeStepSize() * (item->depth() + 1) + list_->itemMargin();
  93         // adjust the listview width to the max. itemsize
  94         if (itemsize > list_->minimumWidth())
  95                 list_->setMinimumWidth(itemsize);
  96                 */
  97 }
  98
  99
 100 void PanelStack::addPanel(QWidget * panel, string const & name, string const & parent)
 101 {
 102         addCategory(name, parent);
 103         QTreeWidgetItem * item = panel_map_.find(name)->second;
 104
 105         // reset the selectability set by addCategory
 106 //      item->setSelectable(true);
 107
 108         widget_map_[item] = panel;
 109         stack_->addWidget(panel);
 110         stack_->setMinimumSize(panel->minimumSize());
 111 }
 112
 113
 114 void PanelStack::setCurrentPanel(string const & name)
 115 {
 116         PanelMap::const_iterator cit = panel_map_.find(name);
 117         BOOST_ASSERT(cit != panel_map_.end());
 118
 119         // force on first set
 120         if (list_->currentItem() ==  cit->second)
 121                 switchPanel(cit->second);
 122
 123         list_->setCurrentItem(cit->second);
 124 }
 125
 126
 127 void PanelStack::switchPanel(QTreeWidgetItem * item, QTreeWidgetItem* previous)
 128 {
 129         WidgetMap::const_iterator cit = widget_map_.find(item);
 130         if (cit == widget_map_.end())
 131                 return;
 132
 133         stack_->setCurrentWidget(cit->second);
 134 }