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 "debug.h"
  18
  19 #include <QFontMetrics>
  20 #include <QStackedWidget>
  21 #include <QTreeWidget>
  22 #include <QHBoxLayout>
  23 #include <QHeaderView>
  24
  25 #include <boost/assert.hpp>
  26
  27 #include <iostream>
  28
  29
  30 using std::endl;
  31 using std::cout;
  32
  33 namespace lyx {
  34 namespace frontend {
  35
  36
  37 PanelStack::PanelStack(QWidget * parent)
  38         : QWidget(parent)
  39 {
  40         list_ = new QTreeWidget(this);
  41         stack_ = new QStackedWidget(this);
  42
  43         list_->setColumnCount(1);
  44         // Hide the pointless list header
  45         list_->header()->hide();
  46 //      QStringList HeaderLabels;
  47 //      HeaderLabels << QString("Category");
  48 //      list_->setHeaderLabels(HeaderLabels);
  49
  50         connect(list_, SIGNAL(currentItemChanged (QTreeWidgetItem*, QTreeWidgetItem*)),
  51                 this, SLOT(switchPanel(QTreeWidgetItem *, QTreeWidgetItem*)));
  52
  53         QHBoxLayout * layout = new QHBoxLayout(this);
  54         layout->addWidget(list_, 0);
  55         layout->addWidget(stack_, 1);
  56 }
  57
  58
  59 void PanelStack::addCategory(docstring const & n, docstring const & parent)
  60 {
  61         QTreeWidgetItem * item;
  62
  63         QString name;
  64         lyx::ucs4_to_qstring(n, name);
  65
  66         lyxerr[Debug::GUI] << "addCategory n= " << lyx::to_utf8(n) << "   parent= " << endl;
  67
  68         int depth = 1;
  69
  70         if (parent.empty()) {
  71                 item = new QTreeWidgetItem(list_);
  72                 item->setText(0, name);
  73         }
  74         else {
  75                 PanelMap::iterator it = panel_map_.find(parent);
  76                 //BOOST_ASSERT(it != panel_map_.end());
  77                 if (it == panel_map_.end()) {
  78                         addCategory(parent);
  79                         it = panel_map_.find(parent);
  80                 }
  81                 BOOST_ASSERT(it != panel_map_.end());
  82
  83                 item = new QTreeWidgetItem(it->second);
  84                 item->setText(0, name);
  85                 depth = 2;
  86         }
  87
  88         panel_map_[n] = item;
  89
  90         QFontMetrics fm(list_->font());
  91         // calculate the real size the current item needs in the listview
  92         int itemsize = fm.width(name) + 10
  93                 + list_->indentation() * depth;
  94         // adjust the listview width to the max. itemsize
  95         if (itemsize > list_->minimumWidth())
  96                 list_->setMinimumWidth(itemsize);
  97 }
  98
  99
 100 void PanelStack::addPanel(QWidget * panel, docstring const & name, docstring const & parent)
 101 {
 102         addCategory(name, parent);
 103         QTreeWidgetItem * item = panel_map_.find(name)->second;
 104
 105         widget_map_[item] = panel;
 106         stack_->addWidget(panel);
 107         stack_->setMinimumSize(panel->minimumSize());
 108 }
 109
 110
 111 void PanelStack::setCurrentPanel(docstring const & name)
 112 {
 113         PanelMap::const_iterator cit = panel_map_.find(name);
 114         BOOST_ASSERT(cit != panel_map_.end());
 115
 116         // force on first set
 117         if (list_->currentItem() ==  cit->second)
 118                 switchPanel(cit->second);
 119
 120         list_->setCurrentItem(cit->second);
 121 }
 122
 123
 124 void PanelStack::switchPanel(QTreeWidgetItem * item,
 125                              QTreeWidgetItem * /*previous*/)
 126 {
 127         WidgetMap::const_iterator cit = widget_map_.find(item);
 128         if (cit == widget_map_.end())
 129                 return;
 130
 131         stack_->setCurrentWidget(cit->second);
 132 }
 133
 134
 135 QSize PanelStack::sizeHint() const
 136 {
 137         return QSize(list_->width() + stack_->width(),
 138                 qMax(list_->height(), stack_->height()));
 139 }
 140
 141 } // namespace frontend
 142 } // namespace lyx
 143
 144 #include "panelstack_moc.cpp"