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 #include <iostream>
  26
  27 using lyx::docstring;
  28
  29 using std::endl;
  30 using std::cout;
  31
  32
  33 PanelStack::PanelStack(QWidget * parent)
  34         : QWidget(parent)
  35 {
  36         list_ = new QTreeWidget(this);
  37         stack_ = new QStackedWidget(this);
  38
  39         list_->setColumnCount(1);
  40         list_->setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding));
  41         stack_->setSizePolicy(QSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding));
  42
  43         list_->setSortingEnabled(false);
  44 //      list_->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
  45 //      list_->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
  46 //      list_->addColumn("");
  47 //      list_->setColumnWidthMode(0, QTreeWidget::Maximum);
  48
  49 //      list_->setResizeMode(QTreeWidget::AllColumns);
  50
  51         QStringList HeaderLabels; HeaderLabels << QString("Category");
  52         list_->setHeaderLabels(HeaderLabels);
  53
  54         connect(list_, SIGNAL(currentItemChanged (QTreeWidgetItem*, QTreeWidgetItem*)),
  55                 this, SLOT(switchPanel(QTreeWidgetItem *, QTreeWidgetItem*)));
  56
  57         QHBoxLayout * layout = new QHBoxLayout(this);
  58         layout->addWidget(list_, 0);
  59         layout->addWidget(stack_, 1);
  60 }
  61
  62
  63 void PanelStack::addCategory(docstring const & n, docstring const & parent)
  64 {
  65         QTreeWidgetItem * item;
  66
  67         QString name;
  68         ucs4_to_qstring(n, name);
  69
  70         cout << "addCategory n= " << lyx::to_utf8(n) << "   parent= " << endl;
  71
  72         if (parent.empty()) {
  73                 item = new QTreeWidgetItem(list_);
  74                 item->setText(0, name);
  75                 //list_->addTopLevelItem(item);
  76         }
  77         else {
  78                 PanelMap::iterator it = panel_map_.find(parent);
  79                 //BOOST_ASSERT(it != panel_map_.end());
  80                 if (it == panel_map_.end()) {
  81                         addCategory(parent);
  82                         it = panel_map_.find(parent);
  83                 }
  84                 BOOST_ASSERT(it != panel_map_.end());
  85
  86                 item = new QTreeWidgetItem(it->second);
  87                 item->setText(0, name);
  88                 //it->second->addChild(item);
  89         }
  90
  91         panel_map_[n] = item;
  92
  93         list_->setFixedWidth(list_->sizeHint().width());
  94 /*
  95         item->setFlags(false);
  96         item->setOpen(true);
  97
  98         // calculate the real size the current item needs in the listview
  99         int itemsize = item->width(list_->fontMetrics(), list_, 0) + 10
 100                    + list_->treeStepSize() * (item->depth() + 1) + list_->itemMargin();
 101         // adjust the listview width to the max. itemsize
 102         if (itemsize > list_->minimumWidth())
 103                 list_->setMinimumWidth(itemsize);
 104                 */
 105 }
 106
 107
 108 void PanelStack::addPanel(QWidget * panel, docstring const & name, docstring const & parent)
 109 {
 110         addCategory(name, parent);
 111         QTreeWidgetItem * item = panel_map_.find(name)->second;
 112
 113         // reset the selectability set by addCategory
 114 //      item->setSelectable(true);
 115
 116         widget_map_[item] = panel;
 117         stack_->addWidget(panel);
 118         stack_->setMinimumSize(panel->minimumSize());
 119 }
 120
 121
 122 void PanelStack::setCurrentPanel(docstring const & name)
 123 {
 124         PanelMap::const_iterator cit = panel_map_.find(name);
 125         BOOST_ASSERT(cit != panel_map_.end());
 126
 127         // force on first set
 128         if (list_->currentItem() ==  cit->second)
 129                 switchPanel(cit->second);
 130
 131         list_->setCurrentItem(cit->second);
 132 }
 133
 134
 135 void PanelStack::switchPanel(QTreeWidgetItem * item,
 136                              QTreeWidgetItem * /*previous*/)
 137 {
 138         WidgetMap::const_iterator cit = widget_map_.find(item);
 139         if (cit == widget_map_.end())
 140                 return;
 141
 142         stack_->setCurrentWidget(cit->second);
 143 }
 144
 145 #include "panelstack_moc.cpp"